From 31440fe70167a1014f2433eb64b9888a24b30fd3 Mon Sep 17 00:00:00 2001 From: WangYuli Date: Fri, 20 Sep 2024 22:17:04 +0800 Subject: [PATCH 01/69] platform/x86/intel/pmt: Correct the typo 'ACCCESS_LOCAL' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There is a spelling mistake of 'ACCCESS_LOCAL' which should be 'ACCESS_LOCAL'. Cc: Thomas Zimmermann Signed-off-by: WangYuli Link: https://lore.kernel.org/r/4F742FFF72DFD84F+20240920141704.34373-1-wangyuli@uniontech.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmt/class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c index c04bb7f97a4d..7680474c4f96 100644 --- a/drivers/platform/x86/intel/pmt/class.c +++ b/drivers/platform/x86/intel/pmt/class.c @@ -207,7 +207,7 @@ static int intel_pmt_populate_entry(struct intel_pmt_entry *entry, /* * Some hardware use a different calculation for the base address * when access_type == ACCESS_LOCAL. On the these systems - * ACCCESS_LOCAL refers to an address in the same BAR as the + * ACCESS_LOCAL refers to an address in the same BAR as the * header but at a fixed offset. But as the header address was * supplied to the driver, we don't know which BAR it was in. * So search for the bar whose range includes the header address. From 066c779b094b63754e0742ad8675d72d6c0a46f6 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 3 Oct 2024 18:48:19 +0300 Subject: [PATCH 02/69] platform/x86: intel_scu_ipc: Don't use "proxy" headers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Update header inclusions to follow IWYU (Include What You Use) principle. Signed-off-by: Andy Shevchenko Acked-by: Mika Westerberg Link: https://lore.kernel.org/r/20241003154819.1075141-1-andriy.shevchenko@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- include/linux/platform_data/x86/intel_scu_ipc.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/platform_data/x86/intel_scu_ipc.h b/include/linux/platform_data/x86/intel_scu_ipc.h index 0ca9962e97f2..b287627759f7 100644 --- a/include/linux/platform_data/x86/intel_scu_ipc.h +++ b/include/linux/platform_data/x86/intel_scu_ipc.h @@ -2,9 +2,13 @@ #ifndef __PLATFORM_X86_INTEL_SCU_IPC_H_ #define __PLATFORM_X86_INTEL_SCU_IPC_H_ +#include #include +#include struct device; +struct module; + struct intel_scu_ipc_dev; /** From d12586e1072d92070783c854819a0ca8c82c5439 Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Sat, 5 Oct 2024 23:38:25 +0200 Subject: [PATCH 03/69] platform/x86: wmi: Implement proper shutdown handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When performing a system shutdown under Windows, all WMI clients are terminated. This means that the ACPI BIOS might expect all WMI devices to be disabled when shutting down. Emulate this behaviour by disabling all active WMI devices during shutdown. Also introduce a new WMI driver callback to allow WMI drivers to perform any device-specific actions before disabling the WMI device. Tested on a Dell Inspiron 3505. Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20241005213825.701887-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- .../wmi/driver-development-guide.rst | 7 ++++- drivers/platform/x86/wmi.c | 27 +++++++++++++++++++ include/linux/wmi.h | 2 ++ 3 files changed, 35 insertions(+), 1 deletion(-) diff --git a/Documentation/wmi/driver-development-guide.rst b/Documentation/wmi/driver-development-guide.rst index 429137b2f632..676873c98680 100644 --- a/Documentation/wmi/driver-development-guide.rst +++ b/Documentation/wmi/driver-development-guide.rst @@ -64,6 +64,7 @@ to matching WMI devices using a struct wmi_device_id table: .id_table = foo_id_table, .probe = foo_probe, .remove = foo_remove, /* optional, devres is preferred */ + .shutdown = foo_shutdown, /* optional, called during shutdown */ .notify = foo_notify, /* optional, for event handling */ .no_notify_data = true, /* optional, enables events containing no additional data */ .no_singleton = true, /* required for new WMI drivers */ @@ -79,6 +80,10 @@ to unregister interfaces to other kernel subsystems and release resources, devre This simplifies error handling during probe and often allows to omit this callback entirely, see Documentation/driver-api/driver-model/devres.rst for details. +The shutdown() callback is called during shutdown, reboot or kexec. Its sole purpose is to disable +the WMI device and put it in a well-known state for the WMI driver to pick up later after reboot +or kexec. Most WMI drivers need no special shutdown handling and can thus omit this callback. + Please note that new WMI drivers are required to be able to be instantiated multiple times, and are forbidden from using any deprecated GUID-based WMI functions. This means that the WMI driver should be prepared for the scenario that multiple matching WMI devices are present @@ -123,7 +128,7 @@ ACPI object is being done by the WMI subsystem, not the driver. The WMI driver core will take care that the notify() callback will only be called after the probe() callback has been called, and that no events are being received by the driver -right before and after calling its remove() callback. +right before and after calling its remove() or shutdown() callback. However WMI driver developers should be aware that multiple WMI events can be received concurrently, so any locking (if necessary) needs to be provided by the WMI driver itself. diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 3cbe180c3fc0..a01223c23d10 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -884,6 +884,32 @@ static void wmi_dev_remove(struct device *dev) dev_warn(dev, "failed to disable device\n"); } +static void wmi_dev_shutdown(struct device *dev) +{ + struct wmi_driver *wdriver; + struct wmi_block *wblock; + + if (dev->driver) { + wdriver = drv_to_wdrv(dev->driver); + wblock = dev_to_wblock(dev); + + /* + * Some machines return bogus WMI event data when disabling + * the WMI event. Because of this we must prevent the associated + * WMI driver from receiving new WMI events before disabling it. + */ + down_write(&wblock->notify_lock); + wblock->driver_ready = false; + up_write(&wblock->notify_lock); + + if (wdriver->shutdown) + wdriver->shutdown(to_wmi_device(dev)); + + if (ACPI_FAILURE(wmi_method_enable(wblock, false))) + dev_warn(dev, "Failed to disable device\n"); + } +} + static struct class wmi_bus_class = { .name = "wmi_bus", }; @@ -895,6 +921,7 @@ static const struct bus_type wmi_bus_type = { .uevent = wmi_dev_uevent, .probe = wmi_dev_probe, .remove = wmi_dev_remove, + .shutdown = wmi_dev_shutdown, }; static const struct device_type wmi_type_event = { diff --git a/include/linux/wmi.h b/include/linux/wmi.h index 3275470b5531..120019677fc6 100644 --- a/include/linux/wmi.h +++ b/include/linux/wmi.h @@ -56,6 +56,7 @@ u8 wmidev_instance_count(struct wmi_device *wdev); * @no_singleton: Driver can be instantiated multiple times * @probe: Callback for device binding * @remove: Callback for device unbinding + * @shutdown: Callback for device shutdown * @notify: Callback for receiving WMI events * * This represents WMI drivers which handle WMI devices. @@ -68,6 +69,7 @@ struct wmi_driver { int (*probe)(struct wmi_device *wdev, const void *context); void (*remove)(struct wmi_device *wdev); + void (*shutdown)(struct wmi_device *wdev); void (*notify)(struct wmi_device *device, union acpi_object *data); }; From 8150408bfdb2f9c17970295427cf91470189e6d0 Mon Sep 17 00:00:00 2001 From: Abdul Rahim Date: Thu, 10 Oct 2024 04:35:58 +0530 Subject: [PATCH 04/69] asus-laptop: prefer strscpy() over strcpy() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The function strcpy() is depreciated and potentially unsafe. It performs no bounds checking on the destination buffer. This could result in linear overflows beyond the end of the buffer, leading to all kinds of misbehaviors. The safe replacement is strscpy() [1]. this fixes checkpatch warning: WARNING: Prefer strscpy over strcpy Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1] Signed-off-by: Abdul Rahim Reviewed-by: Luke D. Jones Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20241009230558.51892-1-abdul.rahim@myyahoo.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/asus-laptop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 9d7e6b712abf..d460dd194f19 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -1832,8 +1832,8 @@ static int asus_acpi_add(struct acpi_device *device) if (!asus) return -ENOMEM; asus->handle = device->handle; - strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME); - strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS); + strscpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME); + strscpy(acpi_device_class(device), ASUS_LAPTOP_CLASS); device->driver_data = asus; asus->device = device; From 7dd1233931271f4c7efd5456aaa6e8bb8f77b5e8 Mon Sep 17 00:00:00 2001 From: Ba Jing Date: Tue, 15 Oct 2024 02:38:56 +0800 Subject: [PATCH 05/69] x86: acer-wmi: remove unused macros MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After reviewing the code, it was found that these macros are never referenced in the code and are all set to 0. They should be removed. Signed-off-by: Ba Jing Link: https://lore.kernel.org/r/20241014183856.3942-1-bajing@cmss.chinamobile.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/acer-wmi.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 7169b84ccdb6..ae916a7a01ca 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -258,11 +258,6 @@ enum interface_flags { ACER_WMID_v2, }; -#define ACER_DEFAULT_WIRELESS 0 -#define ACER_DEFAULT_BLUETOOTH 0 -#define ACER_DEFAULT_MAILLED 0 -#define ACER_DEFAULT_THREEG 0 - static int max_brightness = 0xF; static int mailled = -1; From 3ea5eb68b9d624935108b5e696859304edfac202 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 17 Oct 2024 09:38:03 +0200 Subject: [PATCH 06/69] platform/x86: Switch back to struct platform_driver::remove() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/platform/x86/ to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. While touching these files, make indention of the struct initializer consistent in several files. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20241017073802.53235-2-u.kleine-koenig@baylibre.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/acer-wmi.c | 2 +- drivers/platform/x86/adv_swbutton.c | 2 +- drivers/platform/x86/amd/hsmp.c | 2 +- drivers/platform/x86/amd/pmc/pmc.c | 2 +- drivers/platform/x86/amd/pmf/core.c | 2 +- drivers/platform/x86/amilo-rfkill.c | 6 +++--- drivers/platform/x86/asus-wmi.c | 2 +- drivers/platform/x86/barco-p50-gpio.c | 2 +- drivers/platform/x86/compal-laptop.c | 4 ++-- drivers/platform/x86/dell/dcdbas.c | 2 +- drivers/platform/x86/dell/dell-smo8800.c | 2 +- drivers/platform/x86/dell/dell-uart-backlight.c | 2 +- drivers/platform/x86/hp/hp-wmi.c | 2 +- drivers/platform/x86/hp/hp_accel.c | 2 +- drivers/platform/x86/hp/tc1100-wmi.c | 2 +- drivers/platform/x86/huawei-wmi.c | 2 +- drivers/platform/x86/ideapad-laptop.c | 2 +- drivers/platform/x86/intel/bxtwc_tmu.c | 2 +- drivers/platform/x86/intel/bytcrc_pwrsrc.c | 2 +- drivers/platform/x86/intel/chtdc_ti_pwrbtn.c | 2 +- drivers/platform/x86/intel/chtwc_int33fe.c | 2 +- drivers/platform/x86/intel/hid.c | 2 +- drivers/platform/x86/intel/int0002_vgpio.c | 4 ++-- drivers/platform/x86/intel/int1092/intel_sar.c | 2 +- drivers/platform/x86/intel/int3472/discrete.c | 2 +- drivers/platform/x86/intel/mrfld_pwrbtn.c | 2 +- drivers/platform/x86/intel/pmc/core.c | 2 +- drivers/platform/x86/intel/telemetry/pltdrv.c | 2 +- drivers/platform/x86/intel/vbtn.c | 2 +- .../platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c | 2 +- drivers/platform/x86/lenovo-yogabook.c | 2 +- drivers/platform/x86/mlx-platform.c | 2 +- drivers/platform/x86/samsung-q10.c | 2 +- drivers/platform/x86/sel3350-platform.c | 2 +- drivers/platform/x86/serial-multi-instantiate.c | 2 +- drivers/platform/x86/siemens/simatic-ipc-batt-apollolake.c | 2 +- drivers/platform/x86/siemens/simatic-ipc-batt-elkhartlake.c | 2 +- drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c | 2 +- drivers/platform/x86/siemens/simatic-ipc-batt.c | 2 +- drivers/platform/x86/wmi.c | 2 +- drivers/platform/x86/x86-android-tablets/core.c | 2 +- drivers/platform/x86/xo1-rfkill.c | 2 +- 42 files changed, 46 insertions(+), 46 deletions(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index ae916a7a01ca..d09baa3d3d90 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -2636,7 +2636,7 @@ static struct platform_driver acer_platform_driver = { .pm = &acer_pm, }, .probe = acer_platform_probe, - .remove_new = acer_platform_remove, + .remove = acer_platform_remove, .shutdown = acer_platform_shutdown, }; diff --git a/drivers/platform/x86/adv_swbutton.c b/drivers/platform/x86/adv_swbutton.c index 6b23ba78e028..6fa60f3fc53c 100644 --- a/drivers/platform/x86/adv_swbutton.c +++ b/drivers/platform/x86/adv_swbutton.c @@ -110,7 +110,7 @@ static struct platform_driver adv_swbutton_driver = { .acpi_match_table = button_device_ids, }, .probe = adv_swbutton_probe, - .remove_new = adv_swbutton_remove, + .remove = adv_swbutton_remove, }; module_platform_driver(adv_swbutton_driver); diff --git a/drivers/platform/x86/amd/hsmp.c b/drivers/platform/x86/amd/hsmp.c index 8fcf38eed7f0..fe8948729bba 100644 --- a/drivers/platform/x86/amd/hsmp.c +++ b/drivers/platform/x86/amd/hsmp.c @@ -883,7 +883,7 @@ static void hsmp_pltdrv_remove(struct platform_device *pdev) static struct platform_driver amd_hsmp_driver = { .probe = hsmp_pltdrv_probe, - .remove_new = hsmp_pltdrv_remove, + .remove = hsmp_pltdrv_remove, .driver = { .name = DRIVER_NAME, .acpi_match_table = amd_hsmp_acpi_ids, diff --git a/drivers/platform/x86/amd/pmc/pmc.c b/drivers/platform/x86/amd/pmc/pmc.c index bbb8edb62e00..71abc6276e89 100644 --- a/drivers/platform/x86/amd/pmc/pmc.c +++ b/drivers/platform/x86/amd/pmc/pmc.c @@ -1156,7 +1156,7 @@ static struct platform_driver amd_pmc_driver = { .pm = pm_sleep_ptr(&amd_pmc_pm), }, .probe = amd_pmc_probe, - .remove_new = amd_pmc_remove, + .remove = amd_pmc_remove, }; module_platform_driver(amd_pmc_driver); diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c index d6af0ca036f1..47126abd13ca 100644 --- a/drivers/platform/x86/amd/pmf/core.c +++ b/drivers/platform/x86/amd/pmf/core.c @@ -496,7 +496,7 @@ static struct platform_driver amd_pmf_driver = { .pm = pm_sleep_ptr(&amd_pmf_pm), }, .probe = amd_pmf_probe, - .remove_new = amd_pmf_remove, + .remove = amd_pmf_remove, }; module_platform_driver(amd_pmf_driver); diff --git a/drivers/platform/x86/amilo-rfkill.c b/drivers/platform/x86/amilo-rfkill.c index 2423dc91debb..18397c527eab 100644 --- a/drivers/platform/x86/amilo-rfkill.c +++ b/drivers/platform/x86/amilo-rfkill.c @@ -132,10 +132,10 @@ static void amilo_rfkill_remove(struct platform_device *device) static struct platform_driver amilo_rfkill_driver = { .driver = { - .name = KBUILD_MODNAME, + .name = KBUILD_MODNAME, }, - .probe = amilo_rfkill_probe, - .remove_new = amilo_rfkill_remove, + .probe = amilo_rfkill_probe, + .remove = amilo_rfkill_remove, }; static int __init amilo_rfkill_init(void) diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 7a48220b4f5a..2ccc23b259d3 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -5066,7 +5066,7 @@ int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver) return -EBUSY; platform_driver = &driver->platform_driver; - platform_driver->remove_new = asus_wmi_remove; + platform_driver->remove = asus_wmi_remove; platform_driver->driver.owner = driver->owner; platform_driver->driver.name = driver->name; platform_driver->driver.pm = &asus_pm_ops; diff --git a/drivers/platform/x86/barco-p50-gpio.c b/drivers/platform/x86/barco-p50-gpio.c index af566f712057..143d14548565 100644 --- a/drivers/platform/x86/barco-p50-gpio.c +++ b/drivers/platform/x86/barco-p50-gpio.c @@ -385,7 +385,7 @@ static struct platform_driver p50_gpio_driver = { .name = DRIVER_NAME, }, .probe = p50_gpio_probe, - .remove_new = p50_gpio_remove, + .remove = p50_gpio_remove, }; /* Board setup */ diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c index 5546fb189491..4e1d44670bd1 100644 --- a/drivers/platform/x86/compal-laptop.c +++ b/drivers/platform/x86/compal-laptop.c @@ -1023,8 +1023,8 @@ static struct platform_driver compal_driver = { .driver = { .name = DRIVER_NAME, }, - .probe = compal_probe, - .remove_new = compal_remove, + .probe = compal_probe, + .remove = compal_remove, }; static int __init compal_init(void) diff --git a/drivers/platform/x86/dell/dcdbas.c b/drivers/platform/x86/dell/dcdbas.c index a60e35056387..c7dcb5d2dc77 100644 --- a/drivers/platform/x86/dell/dcdbas.c +++ b/drivers/platform/x86/dell/dcdbas.c @@ -709,7 +709,7 @@ static struct platform_driver dcdbas_driver = { .name = DRIVER_NAME, }, .probe = dcdbas_probe, - .remove_new = dcdbas_remove, + .remove = dcdbas_remove, }; static const struct platform_device_info dcdbas_dev_info __initconst = { diff --git a/drivers/platform/x86/dell/dell-smo8800.c b/drivers/platform/x86/dell/dell-smo8800.c index f7ec17c56833..87fe03f23f24 100644 --- a/drivers/platform/x86/dell/dell-smo8800.c +++ b/drivers/platform/x86/dell/dell-smo8800.c @@ -179,7 +179,7 @@ MODULE_DEVICE_TABLE(acpi, smo8800_ids); static struct platform_driver smo8800_driver = { .probe = smo8800_probe, - .remove_new = smo8800_remove, + .remove = smo8800_remove, .driver = { .name = DRIVER_NAME, .acpi_match_table = smo8800_ids, diff --git a/drivers/platform/x86/dell/dell-uart-backlight.c b/drivers/platform/x86/dell/dell-uart-backlight.c index 3995f90add45..6e5dc7e3674f 100644 --- a/drivers/platform/x86/dell/dell-uart-backlight.c +++ b/drivers/platform/x86/dell/dell-uart-backlight.c @@ -393,7 +393,7 @@ static void dell_uart_bl_pdev_remove(struct platform_device *pdev) static struct platform_driver dell_uart_bl_pdev_driver = { .probe = dell_uart_bl_pdev_probe, - .remove_new = dell_uart_bl_pdev_remove, + .remove = dell_uart_bl_pdev_remove, .driver = { .name = "dell-uart-backlight", }, diff --git a/drivers/platform/x86/hp/hp-wmi.c b/drivers/platform/x86/hp/hp-wmi.c index 8c05e0dd2a21..81ccc96ffe40 100644 --- a/drivers/platform/x86/hp/hp-wmi.c +++ b/drivers/platform/x86/hp/hp-wmi.c @@ -1748,7 +1748,7 @@ static struct platform_driver hp_wmi_driver __refdata = { .pm = &hp_wmi_pm_ops, .dev_groups = hp_wmi_groups, }, - .remove_new = __exit_p(hp_wmi_bios_remove), + .remove = __exit_p(hp_wmi_bios_remove), }; static umode_t hp_wmi_hwmon_is_visible(const void *data, diff --git a/drivers/platform/x86/hp/hp_accel.c b/drivers/platform/x86/hp/hp_accel.c index 52535576772a..39a6530f5072 100644 --- a/drivers/platform/x86/hp/hp_accel.c +++ b/drivers/platform/x86/hp/hp_accel.c @@ -372,7 +372,7 @@ static SIMPLE_DEV_PM_OPS(hp_accel_pm, lis3lv02d_suspend, lis3lv02d_resume); /* For the HP MDPS aka 3D Driveguard */ static struct platform_driver lis3lv02d_driver = { .probe = lis3lv02d_probe, - .remove_new = lis3lv02d_remove, + .remove = lis3lv02d_remove, .driver = { .name = "hp_accel", .pm = &hp_accel_pm, diff --git a/drivers/platform/x86/hp/tc1100-wmi.c b/drivers/platform/x86/hp/tc1100-wmi.c index 5298b0f6804f..146716d81442 100644 --- a/drivers/platform/x86/hp/tc1100-wmi.c +++ b/drivers/platform/x86/hp/tc1100-wmi.c @@ -221,7 +221,7 @@ static struct platform_driver tc1100_driver = { .pm = &tc1100_pm_ops, #endif }, - .remove_new = tc1100_remove, + .remove = tc1100_remove, }; static int __init tc1100_init(void) diff --git a/drivers/platform/x86/huawei-wmi.c b/drivers/platform/x86/huawei-wmi.c index d81fd5df4a00..c3772df34679 100644 --- a/drivers/platform/x86/huawei-wmi.c +++ b/drivers/platform/x86/huawei-wmi.c @@ -842,7 +842,7 @@ static struct platform_driver huawei_wmi_driver = { .name = "huawei-wmi", }, .probe = huawei_wmi_probe, - .remove_new = huawei_wmi_remove, + .remove = huawei_wmi_remove, }; static __init int huawei_wmi_init(void) diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index c64dfc56651d..9d8c3f064050 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -2306,7 +2306,7 @@ MODULE_DEVICE_TABLE(acpi, ideapad_device_ids); static struct platform_driver ideapad_acpi_driver = { .probe = ideapad_acpi_add, - .remove_new = ideapad_acpi_remove, + .remove = ideapad_acpi_remove, .driver = { .name = "ideapad_acpi", .pm = &ideapad_pm, diff --git a/drivers/platform/x86/intel/bxtwc_tmu.c b/drivers/platform/x86/intel/bxtwc_tmu.c index d0e2a3c293b0..1aabd15e2714 100644 --- a/drivers/platform/x86/intel/bxtwc_tmu.c +++ b/drivers/platform/x86/intel/bxtwc_tmu.c @@ -131,7 +131,7 @@ MODULE_DEVICE_TABLE(platform, bxt_wcove_tmu_id_table); static struct platform_driver bxt_wcove_tmu_driver = { .probe = bxt_wcove_tmu_probe, - .remove_new = bxt_wcove_tmu_remove, + .remove = bxt_wcove_tmu_remove, .driver = { .name = "bxt_wcove_tmu", .pm = &bxtwc_tmu_pm_ops, diff --git a/drivers/platform/x86/intel/bytcrc_pwrsrc.c b/drivers/platform/x86/intel/bytcrc_pwrsrc.c index 418b71af27ff..3edc2a9dab38 100644 --- a/drivers/platform/x86/intel/bytcrc_pwrsrc.c +++ b/drivers/platform/x86/intel/bytcrc_pwrsrc.c @@ -167,7 +167,7 @@ static void crc_pwrsrc_remove(struct platform_device *pdev) static struct platform_driver crc_pwrsrc_driver = { .probe = crc_pwrsrc_probe, - .remove_new = crc_pwrsrc_remove, + .remove = crc_pwrsrc_remove, .driver = { .name = "crystal_cove_pwrsrc", }, diff --git a/drivers/platform/x86/intel/chtdc_ti_pwrbtn.c b/drivers/platform/x86/intel/chtdc_ti_pwrbtn.c index 615f8d1a0c68..53f01e198047 100644 --- a/drivers/platform/x86/intel/chtdc_ti_pwrbtn.c +++ b/drivers/platform/x86/intel/chtdc_ti_pwrbtn.c @@ -84,7 +84,7 @@ static struct platform_driver chtdc_ti_pwrbtn_driver = { .name = KBUILD_MODNAME, }, .probe = chtdc_ti_pwrbtn_probe, - .remove_new = chtdc_ti_pwrbtn_remove, + .remove = chtdc_ti_pwrbtn_remove, .id_table = chtdc_ti_pwrbtn_id_table, }; module_platform_driver(chtdc_ti_pwrbtn_driver); diff --git a/drivers/platform/x86/intel/chtwc_int33fe.c b/drivers/platform/x86/intel/chtwc_int33fe.c index 11503b1c85f3..29e8b5432f4c 100644 --- a/drivers/platform/x86/intel/chtwc_int33fe.c +++ b/drivers/platform/x86/intel/chtwc_int33fe.c @@ -427,7 +427,7 @@ static struct platform_driver cht_int33fe_typec_driver = { .acpi_match_table = ACPI_PTR(cht_int33fe_acpi_ids), }, .probe = cht_int33fe_typec_probe, - .remove_new = cht_int33fe_typec_remove, + .remove = cht_int33fe_typec_remove, }; module_platform_driver(cht_int33fe_typec_driver); diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c index 445e7a59beb4..97174834dc31 100644 --- a/drivers/platform/x86/intel/hid.c +++ b/drivers/platform/x86/intel/hid.c @@ -747,7 +747,7 @@ static struct platform_driver intel_hid_pl_driver = { .pm = &intel_hid_pl_pm_ops, }, .probe = intel_hid_probe, - .remove_new = intel_hid_remove, + .remove = intel_hid_remove, }; /* diff --git a/drivers/platform/x86/intel/int0002_vgpio.c b/drivers/platform/x86/intel/int0002_vgpio.c index 527d8fbc7cc1..0cc80603a8a9 100644 --- a/drivers/platform/x86/intel/int0002_vgpio.c +++ b/drivers/platform/x86/intel/int0002_vgpio.c @@ -266,13 +266,13 @@ static const struct acpi_device_id int0002_acpi_ids[] = { MODULE_DEVICE_TABLE(acpi, int0002_acpi_ids); static struct platform_driver int0002_driver = { - .driver = { + .driver = { .name = DRV_NAME, .acpi_match_table = int0002_acpi_ids, .pm = &int0002_pm_ops, }, .probe = int0002_probe, - .remove_new = int0002_remove, + .remove = int0002_remove, }; module_platform_driver(int0002_driver); diff --git a/drivers/platform/x86/intel/int1092/intel_sar.c b/drivers/platform/x86/intel/int1092/intel_sar.c index 6246c066ade2..e526841aff60 100644 --- a/drivers/platform/x86/intel/int1092/intel_sar.c +++ b/drivers/platform/x86/intel/int1092/intel_sar.c @@ -308,7 +308,7 @@ static void sar_remove(struct platform_device *device) static struct platform_driver sar_driver = { .probe = sar_probe, - .remove_new = sar_remove, + .remove = sar_remove, .driver = { .name = DRVNAME, .acpi_match_table = ACPI_PTR(sar_device_ids) diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index 3de463c3d13b..d881b2cfcdfc 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -392,7 +392,7 @@ static struct platform_driver int3472_discrete = { .acpi_match_table = int3472_device_id, }, .probe = skl_int3472_discrete_probe, - .remove_new = skl_int3472_discrete_remove, + .remove = skl_int3472_discrete_remove, }; module_platform_driver(int3472_discrete); diff --git a/drivers/platform/x86/intel/mrfld_pwrbtn.c b/drivers/platform/x86/intel/mrfld_pwrbtn.c index 549a3f586f3b..6c43f801c467 100644 --- a/drivers/platform/x86/intel/mrfld_pwrbtn.c +++ b/drivers/platform/x86/intel/mrfld_pwrbtn.c @@ -97,7 +97,7 @@ static struct platform_driver mrfld_pwrbtn_driver = { .name = "mrfld_bcove_pwrbtn", }, .probe = mrfld_pwrbtn_probe, - .remove_new = mrfld_pwrbtn_remove, + .remove = mrfld_pwrbtn_remove, .id_table = mrfld_pwrbtn_id_table, }; module_platform_driver(mrfld_pwrbtn_driver); diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c index ecb47f8b4f83..c43c206dab31 100644 --- a/drivers/platform/x86/intel/pmc/core.c +++ b/drivers/platform/x86/intel/pmc/core.c @@ -1722,7 +1722,7 @@ static struct platform_driver pmc_core_driver = { .dev_groups = pmc_dev_groups, }, .probe = pmc_core_probe, - .remove_new = pmc_core_remove, + .remove = pmc_core_remove, }; module_platform_driver(pmc_core_driver); diff --git a/drivers/platform/x86/intel/telemetry/pltdrv.c b/drivers/platform/x86/intel/telemetry/pltdrv.c index 767a0bc6c7ad..9a499efa1e4d 100644 --- a/drivers/platform/x86/intel/telemetry/pltdrv.c +++ b/drivers/platform/x86/intel/telemetry/pltdrv.c @@ -1163,7 +1163,7 @@ static void telemetry_pltdrv_remove(struct platform_device *pdev) static struct platform_driver telemetry_soc_driver = { .probe = telemetry_pltdrv_probe, - .remove_new = telemetry_pltdrv_remove, + .remove = telemetry_pltdrv_remove, .driver = { .name = DRIVER_NAME, }, diff --git a/drivers/platform/x86/intel/vbtn.c b/drivers/platform/x86/intel/vbtn.c index a353e830b65f..232cd12e3c9f 100644 --- a/drivers/platform/x86/intel/vbtn.c +++ b/drivers/platform/x86/intel/vbtn.c @@ -387,7 +387,7 @@ static struct platform_driver intel_vbtn_pl_driver = { .pm = &intel_vbtn_pm_ops, }, .probe = intel_vbtn_probe, - .remove_new = intel_vbtn_remove, + .remove = intel_vbtn_remove, }; static acpi_status __init diff --git a/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c b/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c index d525bdc8ca9b..d2699ca24f34 100644 --- a/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c +++ b/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c @@ -298,7 +298,7 @@ static void yt2_1380_fc_pdev_remove(struct platform_device *pdev) static struct platform_driver yt2_1380_fc_pdev_driver = { .probe = yt2_1380_fc_pdev_probe, - .remove_new = yt2_1380_fc_pdev_remove, + .remove = yt2_1380_fc_pdev_remove, .driver = { .name = YT2_1380_FC_PDEV_NAME, .probe_type = PROBE_PREFER_ASYNCHRONOUS, diff --git a/drivers/platform/x86/lenovo-yogabook.c b/drivers/platform/x86/lenovo-yogabook.c index fd62bf746ebd..31b298dc5046 100644 --- a/drivers/platform/x86/lenovo-yogabook.c +++ b/drivers/platform/x86/lenovo-yogabook.c @@ -536,7 +536,7 @@ static void yogabook_pdev_remove(struct platform_device *pdev) static struct platform_driver yogabook_pdev_driver = { .probe = yogabook_pdev_probe, - .remove_new = yogabook_pdev_remove, + .remove = yogabook_pdev_remove, .driver = { .name = YB_PDEV_NAME, .pm = pm_sleep_ptr(&yogabook_pm_ops), diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c index 9d70146fd742..671021cd1f59 100644 --- a/drivers/platform/x86/mlx-platform.c +++ b/drivers/platform/x86/mlx-platform.c @@ -6633,7 +6633,7 @@ static struct platform_driver mlxplat_driver = { .probe_type = PROBE_FORCE_SYNCHRONOUS, }, .probe = mlxplat_probe, - .remove_new = mlxplat_remove, + .remove = mlxplat_remove, }; static int __init mlxplat_init(void) diff --git a/drivers/platform/x86/samsung-q10.c b/drivers/platform/x86/samsung-q10.c index 134e2c3d91ca..8160d45f8a23 100644 --- a/drivers/platform/x86/samsung-q10.c +++ b/drivers/platform/x86/samsung-q10.c @@ -78,7 +78,7 @@ static struct platform_driver samsungq10_driver = { .name = KBUILD_MODNAME, }, .probe = samsungq10_probe, - .remove_new = samsungq10_remove, + .remove = samsungq10_remove, }; static struct platform_device *samsungq10_device; diff --git a/drivers/platform/x86/sel3350-platform.c b/drivers/platform/x86/sel3350-platform.c index d09e976e7148..02e2081e2333 100644 --- a/drivers/platform/x86/sel3350-platform.c +++ b/drivers/platform/x86/sel3350-platform.c @@ -235,7 +235,7 @@ MODULE_DEVICE_TABLE(acpi, sel3350_device_ids); static struct platform_driver sel3350_platform_driver = { .probe = sel3350_probe, - .remove_new = sel3350_remove, + .remove = sel3350_remove, .driver = { .name = "sel3350-platform", .acpi_match_table = sel3350_device_ids, diff --git a/drivers/platform/x86/serial-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c index 7c04cc9e5891..ed6b28505cd6 100644 --- a/drivers/platform/x86/serial-multi-instantiate.c +++ b/drivers/platform/x86/serial-multi-instantiate.c @@ -409,7 +409,7 @@ static struct platform_driver smi_driver = { .acpi_match_table = smi_acpi_ids, }, .probe = smi_probe, - .remove_new = smi_remove, + .remove = smi_remove, }; module_platform_driver(smi_driver); diff --git a/drivers/platform/x86/siemens/simatic-ipc-batt-apollolake.c b/drivers/platform/x86/siemens/simatic-ipc-batt-apollolake.c index 5edc294de6e4..6ff6f3de492b 100644 --- a/drivers/platform/x86/siemens/simatic-ipc-batt-apollolake.c +++ b/drivers/platform/x86/siemens/simatic-ipc-batt-apollolake.c @@ -37,7 +37,7 @@ static int simatic_ipc_batt_apollolake_probe(struct platform_device *pdev) static struct platform_driver simatic_ipc_batt_driver = { .probe = simatic_ipc_batt_apollolake_probe, - .remove_new = simatic_ipc_batt_apollolake_remove, + .remove = simatic_ipc_batt_apollolake_remove, .driver = { .name = KBUILD_MODNAME, }, diff --git a/drivers/platform/x86/siemens/simatic-ipc-batt-elkhartlake.c b/drivers/platform/x86/siemens/simatic-ipc-batt-elkhartlake.c index e6a56d14b505..83f532498c8c 100644 --- a/drivers/platform/x86/siemens/simatic-ipc-batt-elkhartlake.c +++ b/drivers/platform/x86/siemens/simatic-ipc-batt-elkhartlake.c @@ -37,7 +37,7 @@ static int simatic_ipc_batt_elkhartlake_probe(struct platform_device *pdev) static struct platform_driver simatic_ipc_batt_driver = { .probe = simatic_ipc_batt_elkhartlake_probe, - .remove_new = simatic_ipc_batt_elkhartlake_remove, + .remove = simatic_ipc_batt_elkhartlake_remove, .driver = { .name = KBUILD_MODNAME, }, diff --git a/drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c b/drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c index f8849d0e48a8..c6a79338f1d0 100644 --- a/drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c +++ b/drivers/platform/x86/siemens/simatic-ipc-batt-f7188x.c @@ -73,7 +73,7 @@ static int simatic_ipc_batt_f7188x_probe(struct platform_device *pdev) static struct platform_driver simatic_ipc_batt_driver = { .probe = simatic_ipc_batt_f7188x_probe, - .remove_new = simatic_ipc_batt_f7188x_remove, + .remove = simatic_ipc_batt_f7188x_remove, .driver = { .name = KBUILD_MODNAME, }, diff --git a/drivers/platform/x86/siemens/simatic-ipc-batt.c b/drivers/platform/x86/siemens/simatic-ipc-batt.c index d9aff10608cf..7cfe991cba00 100644 --- a/drivers/platform/x86/siemens/simatic-ipc-batt.c +++ b/drivers/platform/x86/siemens/simatic-ipc-batt.c @@ -239,7 +239,7 @@ static int simatic_ipc_batt_io_probe(struct platform_device *pdev) static struct platform_driver simatic_ipc_batt_driver = { .probe = simatic_ipc_batt_io_probe, - .remove_new = simatic_ipc_batt_io_remove, + .remove = simatic_ipc_batt_io_remove, .driver = { .name = KBUILD_MODNAME, }, diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index a01223c23d10..2d6885c67ac0 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -1328,7 +1328,7 @@ static struct platform_driver acpi_wmi_driver = { .acpi_match_table = wmi_device_ids, }, .probe = acpi_wmi_probe, - .remove_new = acpi_wmi_remove, + .remove = acpi_wmi_remove, }; static int __init acpi_wmi_init(void) diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c index 1427a9a39008..30dd845b543e 100644 --- a/drivers/platform/x86/x86-android-tablets/core.c +++ b/drivers/platform/x86/x86-android-tablets/core.c @@ -456,7 +456,7 @@ static struct platform_driver x86_android_tablet_driver = { .driver = { .name = KBUILD_MODNAME, }, - .remove_new = x86_android_tablet_remove, + .remove = x86_android_tablet_remove, }; static int __init x86_android_tablet_init(void) diff --git a/drivers/platform/x86/xo1-rfkill.c b/drivers/platform/x86/xo1-rfkill.c index 5fe68296501c..5fedb99b9d94 100644 --- a/drivers/platform/x86/xo1-rfkill.c +++ b/drivers/platform/x86/xo1-rfkill.c @@ -68,7 +68,7 @@ static struct platform_driver xo1_rfkill_driver = { .name = "xo1-rfkill", }, .probe = xo1_rfkill_probe, - .remove_new = xo1_rfkill_remove, + .remove = xo1_rfkill_remove, }; module_platform_driver(xo1_rfkill_driver); From 90a7d74860044f12a359aa3611b5172b44b202dd Mon Sep 17 00:00:00 2001 From: Hongling Zeng Date: Sat, 19 Oct 2024 13:44:26 +0800 Subject: [PATCH 07/69] platform/x86: classmate-laptop: Replace snprintf in show functions with sysfs_emit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit show() must not use snprintf() when formatting the value to be returned to user space. Signed-off-by: Hongling Zeng Link: https://lore.kernel.org/r/20241019054426.8182-1-zenghongling@kylinos.cn [ij: Added linux/sysfs.h include] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/classmate-laptop.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c index cb6fce655e35..6b1b8e444e24 100644 --- a/drivers/platform/x86/classmate-laptop.c +++ b/drivers/platform/x86/classmate-laptop.c @@ -12,6 +12,7 @@ #include #include #include +#include struct cmpc_accel { int sensitivity; @@ -208,7 +209,7 @@ static ssize_t cmpc_accel_sensitivity_show_v4(struct device *dev, inputdev = dev_get_drvdata(&acpi->dev); accel = dev_get_drvdata(&inputdev->dev); - return sprintf(buf, "%d\n", accel->sensitivity); + return sysfs_emit(buf, "%d\n", accel->sensitivity); } static ssize_t cmpc_accel_sensitivity_store_v4(struct device *dev, @@ -257,7 +258,7 @@ static ssize_t cmpc_accel_g_select_show_v4(struct device *dev, inputdev = dev_get_drvdata(&acpi->dev); accel = dev_get_drvdata(&inputdev->dev); - return sprintf(buf, "%d\n", accel->g_select); + return sysfs_emit(buf, "%d\n", accel->g_select); } static ssize_t cmpc_accel_g_select_store_v4(struct device *dev, @@ -550,7 +551,7 @@ static ssize_t cmpc_accel_sensitivity_show(struct device *dev, inputdev = dev_get_drvdata(&acpi->dev); accel = dev_get_drvdata(&inputdev->dev); - return sprintf(buf, "%d\n", accel->sensitivity); + return sysfs_emit(buf, "%d\n", accel->sensitivity); } static ssize_t cmpc_accel_sensitivity_store(struct device *dev, From 81e2cc3688cb0002d22207a0a5b11be230d4ecc4 Mon Sep 17 00:00:00 2001 From: Hongling Zeng Date: Tue, 22 Oct 2024 11:05:00 +0800 Subject: [PATCH 08/69] platform/x86: dell-dcdbase: Replace snprintf in show functions with sysfs_emit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit show() must not use snprintf() when formatting the value to be returned to user space. Signed-off-by: Hongling Zeng Link: https://lore.kernel.org/r/20241022030500.9986-1-zenghongling@kylinos.cn Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/dcdbas.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/platform/x86/dell/dcdbas.c b/drivers/platform/x86/dell/dcdbas.c index c7dcb5d2dc77..0aeb8149c16b 100644 --- a/drivers/platform/x86/dell/dcdbas.c +++ b/drivers/platform/x86/dell/dcdbas.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -132,14 +133,14 @@ static ssize_t smi_data_buf_phys_addr_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%x\n", (u32)smi_buf.dma); + return sysfs_emit(buf, "%x\n", (u32)smi_buf.dma); } static ssize_t smi_data_buf_size_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%lu\n", smi_buf.size); + return sysfs_emit(buf, "%lu\n", smi_buf.size); } static ssize_t smi_data_buf_size_store(struct device *dev, @@ -200,7 +201,7 @@ static ssize_t host_control_action_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%u\n", host_control_action); + return sysfs_emit(buf, "%u\n", host_control_action); } static ssize_t host_control_action_store(struct device *dev, @@ -224,7 +225,7 @@ static ssize_t host_control_smi_type_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%u\n", host_control_smi_type); + return sysfs_emit(buf, "%u\n", host_control_smi_type); } static ssize_t host_control_smi_type_store(struct device *dev, @@ -239,7 +240,7 @@ static ssize_t host_control_on_shutdown_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%u\n", host_control_on_shutdown); + return sysfs_emit(buf, "%u\n", host_control_on_shutdown); } static ssize_t host_control_on_shutdown_store(struct device *dev, From 6bd35252102e2b79acb54c74527c81c09f690759 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 21 Oct 2024 16:34:29 +0300 Subject: [PATCH 09/69] platform/x86: intel_scu_ipc: Unify the flow in pwr_reg_rdwr() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Unify the flow in pwr_reg_rdwr() with intel_scu_ipc_dev_command_with_size(). While read buffer is not currently being used by the callers of pwr_reg_rdwr(), this might change in the future. For the existing code it's a harmless change because the read data for the write operation is simply discarded. Tested-by: Ferry Toth Acked-by: Mika Westerberg Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241021133705.2933464-2-andriy.shevchenko@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel_scu_ipc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index 5b16d29c93d7..8d11d18701a4 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -325,7 +325,7 @@ static int pwr_reg_rdwr(struct intel_scu_ipc_dev *scu, u16 *addr, u8 *data, } err = intel_scu_ipc_check_status(scu); - if (!err && id == IPC_CMD_PCNTRL_R) { /* Read rbuf */ + if (!err) { /* Read rbuf */ /* Workaround: values are read as 0 without memcpy_fromio */ memcpy_fromio(cbuf, scu->ipc_base + 0x90, 16); for (nc = 0; nc < count; nc++) From 8b142950a5a718d55b09f08900306c75ceed2cf9 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 21 Oct 2024 16:34:30 +0300 Subject: [PATCH 10/69] platform/x86: intel_scu_ipc: Replace workaround by 32-bit IO MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The theory is that the so called workaround in pwr_reg_rdwr() is the actual reader of the data in 32-bit chunks. For some reason the 8-bit IO won't fail after that. Replace the workaround by using 32-bit IO explicitly and then memcpy() as much data as was requested by the user. The same approach is already in use in intel_scu_ipc_dev_command_with_size(). Tested-by: Ferry Toth Acked-by: Mika Westerberg Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241021133705.2933464-3-andriy.shevchenko@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel_scu_ipc.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index 8d11d18701a4..290b38627542 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -217,12 +217,6 @@ static inline u8 ipc_read_status(struct intel_scu_ipc_dev *scu) return __raw_readl(scu->ipc_base + IPC_STATUS); } -/* Read ipc byte data */ -static inline u8 ipc_data_readb(struct intel_scu_ipc_dev *scu, u32 offset) -{ - return readb(scu->ipc_base + IPC_READ_BUFFER + offset); -} - /* Read ipc u32 data */ static inline u32 ipc_data_readl(struct intel_scu_ipc_dev *scu, u32 offset) { @@ -326,10 +320,9 @@ static int pwr_reg_rdwr(struct intel_scu_ipc_dev *scu, u16 *addr, u8 *data, err = intel_scu_ipc_check_status(scu); if (!err) { /* Read rbuf */ - /* Workaround: values are read as 0 without memcpy_fromio */ - memcpy_fromio(cbuf, scu->ipc_base + 0x90, 16); - for (nc = 0; nc < count; nc++) - data[nc] = ipc_data_readb(scu, nc); + for (nc = 0, offset = 0; nc < 4; nc++, offset += 4) + wbuf[nc] = ipc_data_readl(scu, offset); + memcpy(data, wbuf, count); } mutex_unlock(&ipclock); return err; From ce44b96261a6af318a9e28a16f0d9749e89179a6 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 21 Oct 2024 16:34:31 +0300 Subject: [PATCH 11/69] platform/x86: intel_scu_ipc: Simplify code with cleanup helpers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use macros defined in linux/cleanup.h to automate resource lifetime control in the driver. Tested-by: Ferry Toth Acked-by: Mika Westerberg Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241021133705.2933464-4-andriy.shevchenko@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel_scu_ipc.c | 65 +++++++++++----------------- 1 file changed, 25 insertions(+), 40 deletions(-) diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index 290b38627542..9829d4145c58 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -13,6 +13,7 @@ * along with other APIs. */ +#include #include #include #include @@ -99,23 +100,21 @@ static struct class intel_scu_ipc_class = { */ struct intel_scu_ipc_dev *intel_scu_ipc_dev_get(void) { - struct intel_scu_ipc_dev *scu = NULL; + guard(mutex)(&ipclock); - mutex_lock(&ipclock); if (ipcdev) { get_device(&ipcdev->dev); /* * Prevent the IPC provider from being unloaded while it * is being used. */ - if (!try_module_get(ipcdev->owner)) - put_device(&ipcdev->dev); - else - scu = ipcdev; + if (try_module_get(ipcdev->owner)) + return ipcdev; + + put_device(&ipcdev->dev); } - mutex_unlock(&ipclock); - return scu; + return NULL; } EXPORT_SYMBOL_GPL(intel_scu_ipc_dev_get); @@ -289,12 +288,11 @@ static int pwr_reg_rdwr(struct intel_scu_ipc_dev *scu, u16 *addr, u8 *data, memset(cbuf, 0, sizeof(cbuf)); - mutex_lock(&ipclock); + guard(mutex)(&ipclock); + scu = intel_scu_ipc_get(scu); - if (IS_ERR(scu)) { - mutex_unlock(&ipclock); + if (IS_ERR(scu)) return PTR_ERR(scu); - } for (nc = 0; nc < count; nc++, offset += 2) { cbuf[offset] = addr[nc]; @@ -324,7 +322,6 @@ static int pwr_reg_rdwr(struct intel_scu_ipc_dev *scu, u16 *addr, u8 *data, wbuf[nc] = ipc_data_readl(scu, offset); memcpy(data, wbuf, count); } - mutex_unlock(&ipclock); return err; } @@ -446,17 +443,15 @@ int intel_scu_ipc_dev_simple_command(struct intel_scu_ipc_dev *scu, int cmd, u32 cmdval; int err; - mutex_lock(&ipclock); + guard(mutex)(&ipclock); + scu = intel_scu_ipc_get(scu); - if (IS_ERR(scu)) { - mutex_unlock(&ipclock); + if (IS_ERR(scu)) return PTR_ERR(scu); - } cmdval = sub << 12 | cmd; ipc_command(scu, cmdval); err = intel_scu_ipc_check_status(scu); - mutex_unlock(&ipclock); if (err) dev_err(&scu->dev, "IPC command %#x failed with %d\n", cmdval, err); return err; @@ -491,12 +486,11 @@ int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd, if (inbuflen > 4 || outbuflen > 4) return -EINVAL; - mutex_lock(&ipclock); + guard(mutex)(&ipclock); + scu = intel_scu_ipc_get(scu); - if (IS_ERR(scu)) { - mutex_unlock(&ipclock); + if (IS_ERR(scu)) return PTR_ERR(scu); - } memcpy(inbuf, in, inlen); for (i = 0; i < inbuflen; i++) @@ -515,7 +509,6 @@ int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd, memcpy(out, outbuf, outlen); } - mutex_unlock(&ipclock); if (err) dev_err(&scu->dev, "IPC command %#x failed with %d\n", cmdval, err); return err; @@ -572,18 +565,15 @@ __intel_scu_ipc_register(struct device *parent, struct intel_scu_ipc_dev *scu; void __iomem *ipc_base; - mutex_lock(&ipclock); + guard(mutex)(&ipclock); + /* We support only one IPC */ - if (ipcdev) { - err = -EBUSY; - goto err_unlock; - } + if (ipcdev) + return ERR_PTR(-EBUSY); scu = kzalloc(sizeof(*scu), GFP_KERNEL); - if (!scu) { - err = -ENOMEM; - goto err_unlock; - } + if (!scu) + return ERR_PTR(-ENOMEM); scu->owner = owner; scu->dev.parent = parent; @@ -621,13 +611,11 @@ __intel_scu_ipc_register(struct device *parent, err = device_register(&scu->dev); if (err) { put_device(&scu->dev); - goto err_unlock; + return ERR_PTR(err); } /* Assign device at last */ ipcdev = scu; - mutex_unlock(&ipclock); - return scu; err_unmap: @@ -636,9 +624,6 @@ __intel_scu_ipc_register(struct device *parent, release_mem_region(scu_data->mem.start, resource_size(&scu_data->mem)); err_free: kfree(scu); -err_unlock: - mutex_unlock(&ipclock); - return ERR_PTR(err); } EXPORT_SYMBOL_GPL(__intel_scu_ipc_register); @@ -652,12 +637,12 @@ EXPORT_SYMBOL_GPL(__intel_scu_ipc_register); */ void intel_scu_ipc_unregister(struct intel_scu_ipc_dev *scu) { - mutex_lock(&ipclock); + guard(mutex)(&ipclock); + if (!WARN_ON(!ipcdev)) { ipcdev = NULL; device_unregister(&scu->dev); } - mutex_unlock(&ipclock); } EXPORT_SYMBOL_GPL(intel_scu_ipc_unregister); From acf1b04c6890aef9bb356195221e75ce3862f84e Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 21 Oct 2024 16:34:32 +0300 Subject: [PATCH 12/69] platform/x86: intel_scu_ipc: Convert to check for errors first MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Convert to use usual pattern, i.e. check for errors first. This makes code less indented and easier to read after all. Tested-by: Ferry Toth Acked-by: Mika Westerberg Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241021133705.2933464-5-andriy.shevchenko@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel_scu_ipc.c | 37 ++++++++++++++-------------- 1 file changed, 19 insertions(+), 18 deletions(-) diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index 9829d4145c58..2d25a0a86143 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -317,12 +317,15 @@ static int pwr_reg_rdwr(struct intel_scu_ipc_dev *scu, u16 *addr, u8 *data, } err = intel_scu_ipc_check_status(scu); - if (!err) { /* Read rbuf */ - for (nc = 0, offset = 0; nc < 4; nc++, offset += 4) - wbuf[nc] = ipc_data_readl(scu, offset); - memcpy(data, wbuf, count); - } - return err; + if (err) + return err; + + /* Read rbuf */ + for (nc = 0, offset = 0; nc < 4; nc++, offset += 4) + wbuf[nc] = ipc_data_readl(scu, offset); + memcpy(data, wbuf, count); + + return 0; } /** @@ -480,7 +483,7 @@ int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd, { size_t outbuflen = DIV_ROUND_UP(outlen, sizeof(u32)); size_t inbuflen = DIV_ROUND_UP(inlen, sizeof(u32)); - u32 cmdval, inbuf[4] = {}; + u32 cmdval, inbuf[4] = {}, outbuf[4] = {}; int i, err; if (inbuflen > 4 || outbuflen > 4) @@ -499,19 +502,17 @@ int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd, cmdval = (size << 16) | (sub << 12) | cmd; ipc_command(scu, cmdval); err = intel_scu_ipc_check_status(scu); - - if (!err) { - u32 outbuf[4] = {}; - - for (i = 0; i < outbuflen; i++) - outbuf[i] = ipc_data_readl(scu, 4 * i); - - memcpy(out, outbuf, outlen); + if (err) { + dev_err(&scu->dev, "IPC command %#x failed with %d\n", cmdval, err); + return err; } - if (err) - dev_err(&scu->dev, "IPC command %#x failed with %d\n", cmdval, err); - return err; + for (i = 0; i < outbuflen; i++) + outbuf[i] = ipc_data_readl(scu, 4 * i); + + memcpy(out, outbuf, outlen); + + return 0; } EXPORT_SYMBOL(intel_scu_ipc_dev_command_with_size); From f02fcc7c12a61cfcb65937a570915672fa33ce73 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 21 Oct 2024 16:34:33 +0300 Subject: [PATCH 13/69] platform/x86: intel_scu_ipc: Save a copy of the entire struct intel_scu_ipc_data MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Save a copy of the entire struct intel_scu_ipc_data for easier maintenance in case of expanding (adding new members become simpler). Acked-by: Mika Westerberg Tested-by: Ferry Toth Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241021133705.2933464-6-andriy.shevchenko@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel_scu_ipc.c | 33 ++++++++++++++-------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index 2d25a0a86143..3acf6149a9ec 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -57,11 +57,11 @@ struct intel_scu_ipc_dev { struct device dev; - struct resource mem; struct module *owner; - int irq; void __iomem *ipc_base; struct completion cmd_complete; + + struct intel_scu_ipc_data data; }; #define IPC_STATUS 0x04 @@ -255,7 +255,7 @@ static inline int ipc_wait_for_interrupt(struct intel_scu_ipc_dev *scu) static int intel_scu_ipc_check_status(struct intel_scu_ipc_dev *scu) { - return scu->irq > 0 ? ipc_wait_for_interrupt(scu) : busy_loop(scu); + return scu->data.irq > 0 ? ipc_wait_for_interrupt(scu) : busy_loop(scu); } static struct intel_scu_ipc_dev *intel_scu_ipc_get(struct intel_scu_ipc_dev *scu) @@ -536,13 +536,13 @@ static irqreturn_t ioc(int irq, void *dev_id) static void intel_scu_ipc_release(struct device *dev) { - struct intel_scu_ipc_dev *scu; + struct intel_scu_ipc_dev *scu = container_of(dev, struct intel_scu_ipc_dev, dev); + struct intel_scu_ipc_data *data = &scu->data; - scu = container_of(dev, struct intel_scu_ipc_dev, dev); - if (scu->irq > 0) - free_irq(scu->irq, scu); + if (data->irq > 0) + free_irq(data->irq, scu); iounmap(scu->ipc_base); - release_mem_region(scu->mem.start, resource_size(&scu->mem)); + release_mem_region(data->mem.start, resource_size(&data->mem)); kfree(scu); } @@ -563,6 +563,7 @@ __intel_scu_ipc_register(struct device *parent, struct module *owner) { int err; + struct intel_scu_ipc_data *data; struct intel_scu_ipc_dev *scu; void __iomem *ipc_base; @@ -581,25 +582,25 @@ __intel_scu_ipc_register(struct device *parent, scu->dev.class = &intel_scu_ipc_class; scu->dev.release = intel_scu_ipc_release; - if (!request_mem_region(scu_data->mem.start, resource_size(&scu_data->mem), - "intel_scu_ipc")) { + memcpy(&scu->data, scu_data, sizeof(scu->data)); + data = &scu->data; + + if (!request_mem_region(data->mem.start, resource_size(&data->mem), "intel_scu_ipc")) { err = -EBUSY; goto err_free; } - ipc_base = ioremap(scu_data->mem.start, resource_size(&scu_data->mem)); + ipc_base = ioremap(data->mem.start, resource_size(&data->mem)); if (!ipc_base) { err = -ENOMEM; goto err_release; } scu->ipc_base = ipc_base; - scu->mem = scu_data->mem; - scu->irq = scu_data->irq; init_completion(&scu->cmd_complete); - if (scu->irq > 0) { - err = request_irq(scu->irq, ioc, 0, "intel_scu_ipc", scu); + if (data->irq > 0) { + err = request_irq(data->irq, ioc, 0, "intel_scu_ipc", scu); if (err) goto err_unmap; } @@ -622,7 +623,7 @@ __intel_scu_ipc_register(struct device *parent, err_unmap: iounmap(ipc_base); err_release: - release_mem_region(scu_data->mem.start, resource_size(&scu_data->mem)); + release_mem_region(data->mem.start, resource_size(&data->mem)); err_free: kfree(scu); return ERR_PTR(err); From c54eeb8feff57b2b5d1e42142fb51bd9033d55e4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20de=20Bretagne?= Date: Mon, 9 Sep 2024 00:35:03 +0200 Subject: [PATCH 14/69] platform/surface: aggregator_registry: Add Surface Pro 9 5G MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add SAM client device nodes for the Surface Pro 9 5G, with the usual battery/AC and HID nodes for keyboard and touchpad support. Signed-off-by: Jérôme de Bretagne Reviewed-by: Maximilian Luz Link: https://lore.kernel.org/r/20240908223505.21011-4-jerome.debretagne@gmail.com [ij: variable names 5G -> 5g, added archs to comments as requested.] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- .../surface/surface_aggregator_registry.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c index 25c8aa2131d6..06e45f0b9817 100644 --- a/drivers/platform/surface/surface_aggregator_registry.c +++ b/drivers/platform/surface/surface_aggregator_registry.c @@ -371,7 +371,7 @@ static const struct software_node *ssam_node_group_sp8[] = { NULL, }; -/* Devices for Surface Pro 9 and 10 */ +/* Devices for Surface Pro 9 (Intel/x86) and 10 */ static const struct software_node *ssam_node_group_sp9[] = { &ssam_node_root, &ssam_node_hub_kip, @@ -390,6 +390,21 @@ static const struct software_node *ssam_node_group_sp9[] = { NULL, }; +/* Devices for Surface Pro 9 5G (ARM/QCOM) */ +static const struct software_node *ssam_node_group_sp9_5g[] = { + &ssam_node_root, + &ssam_node_hub_kip, + &ssam_node_bat_ac, + &ssam_node_bat_main, + &ssam_node_tmp_sensors, + &ssam_node_hid_kip_keyboard, + &ssam_node_hid_kip_penstash, + &ssam_node_hid_kip_touchpad, + &ssam_node_hid_kip_fwupd, + &ssam_node_hid_sam_sensors, + &ssam_node_kip_tablet_switch, + NULL, +}; /* -- SSAM platform/meta-hub driver. ---------------------------------------- */ @@ -462,6 +477,8 @@ static const struct acpi_device_id ssam_platform_hub_acpi_match[] = { MODULE_DEVICE_TABLE(acpi, ssam_platform_hub_acpi_match); static const struct of_device_id ssam_platform_hub_of_match[] __maybe_unused = { + /* Surface Pro 9 5G (ARM/QCOM) */ + { .compatible = "microsoft,arcata", (void *)ssam_node_group_sp9_5g }, /* Surface Laptop 7 */ { .compatible = "microsoft,romulus13", (void *)ssam_node_group_sl7 }, { .compatible = "microsoft,romulus15", (void *)ssam_node_group_sl7 }, From 9fe43c8020a60b9c9ff44c4a9914e7e7df63084e Mon Sep 17 00:00:00 2001 From: "David E. Box" Date: Thu, 17 Oct 2024 14:04:37 -0700 Subject: [PATCH 15/69] platform/x86/intel/pmc: Refactor platform resume functions to use cnl_resume() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Several platform resume functions currently call pmc_core_send_ltr_ignore() and pmc_core_resume_common(), both of which are already called by cnl_resume(). Simplify the code by having these functions call cnl_resume() directly. Signed-off-by: David E. Box Reviewed-by: Rafael J. Wysocki Link: https://lore.kernel.org/r/20241017210439.3449324-1-david.e.box@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmc/arl.c | 3 +-- drivers/platform/x86/intel/pmc/lnl.c | 3 +-- drivers/platform/x86/intel/pmc/mtl.c | 3 +-- 3 files changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c index e10527c4e3e0..05dec4f5019f 100644 --- a/drivers/platform/x86/intel/pmc/arl.c +++ b/drivers/platform/x86/intel/pmc/arl.c @@ -687,9 +687,8 @@ static void arl_d3_fixup(void) static int arl_resume(struct pmc_dev *pmcdev) { arl_d3_fixup(); - pmc_core_send_ltr_ignore(pmcdev, 3, 0); - return pmc_core_resume_common(pmcdev); + return cnl_resume(pmcdev); } int arl_core_init(struct pmc_dev *pmcdev) diff --git a/drivers/platform/x86/intel/pmc/lnl.c b/drivers/platform/x86/intel/pmc/lnl.c index e7a8077d1a3e..be029f12cdf4 100644 --- a/drivers/platform/x86/intel/pmc/lnl.c +++ b/drivers/platform/x86/intel/pmc/lnl.c @@ -546,9 +546,8 @@ static void lnl_d3_fixup(void) static int lnl_resume(struct pmc_dev *pmcdev) { lnl_d3_fixup(); - pmc_core_send_ltr_ignore(pmcdev, 3, 0); - return pmc_core_resume_common(pmcdev); + return cnl_resume(pmcdev); } int lnl_core_init(struct pmc_dev *pmcdev) diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c index 91f2fa728f5c..fc6a89b8979f 100644 --- a/drivers/platform/x86/intel/pmc/mtl.c +++ b/drivers/platform/x86/intel/pmc/mtl.c @@ -988,9 +988,8 @@ static void mtl_d3_fixup(void) static int mtl_resume(struct pmc_dev *pmcdev) { mtl_d3_fixup(); - pmc_core_send_ltr_ignore(pmcdev, 3, 0); - return pmc_core_resume_common(pmcdev); + return cnl_resume(pmcdev); } int mtl_core_init(struct pmc_dev *pmcdev) From 7a797cc9f80915cc5f1a5aee46d14880eb444644 Mon Sep 17 00:00:00 2001 From: "David E. Box" Date: Thu, 17 Oct 2024 14:04:38 -0700 Subject: [PATCH 16/69] platform/x86/intel/pmc: Disable C1 auto-demotion during suspend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On some platforms, aggressive C1 auto-demotion may lead to failure to enter the deepest C-state during suspend-to-idle, causing high power consumption. To prevent this, disable C1 auto-demotion during suspend and re-enable on resume. Signed-off-by: David E. Box Reviewed-by: Rafael J. Wysocki Link: https://lore.kernel.org/r/20241017210439.3449324-2-david.e.box@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmc/cnp.c | 53 ++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/drivers/platform/x86/intel/pmc/cnp.c b/drivers/platform/x86/intel/pmc/cnp.c index 513c02670c5a..3eaad2a7ebf4 100644 --- a/drivers/platform/x86/intel/pmc/cnp.c +++ b/drivers/platform/x86/intel/pmc/cnp.c @@ -8,6 +8,8 @@ * */ +#include +#include #include "core.h" /* Cannon Lake: PGD PFET Enable Ack Status Register(s) bitmap */ @@ -206,8 +208,57 @@ const struct pmc_reg_map cnp_reg_map = { .etr3_offset = ETR3_OFFSET, }; + +/* + * Disable C1 auto-demotion + * + * Aggressive C1 auto-demotion may lead to failure to enter the deepest C-state + * during suspend-to-idle, causing high power consumption. To prevent this, we + * disable C1 auto-demotion during suspend and re-enable on resume. + * + * Note that, although MSR_PKG_CST_CONFIG_CONTROL has 'package' in its name, it + * is actually a per-core MSR on client platforms, affecting only a single CPU. + * Therefore, it must be configured on all online CPUs. The online cpu mask is + * unchanged during the phase of suspend/resume as user space is frozen. + */ + +static DEFINE_PER_CPU(u64, pkg_cst_config); + +static void disable_c1_auto_demote(void *unused) +{ + int cpunum = smp_processor_id(); + u64 val; + + rdmsrl(MSR_PKG_CST_CONFIG_CONTROL, val); + per_cpu(pkg_cst_config, cpunum) = val; + val &= ~NHM_C1_AUTO_DEMOTE; + wrmsrl(MSR_PKG_CST_CONFIG_CONTROL, val); + + pr_debug("%s: cpu:%d cst %llx\n", __func__, cpunum, val); +} + +static void restore_c1_auto_demote(void *unused) +{ + int cpunum = smp_processor_id(); + + wrmsrl(MSR_PKG_CST_CONFIG_CONTROL, per_cpu(pkg_cst_config, cpunum)); + + pr_debug("%s: cpu:%d cst %llx\n", __func__, cpunum, + per_cpu(pkg_cst_config, cpunum)); +} + +static void s2idle_cpu_quirk(smp_call_func_t func) +{ + if (pm_suspend_via_firmware()) + return; + + on_each_cpu(func, NULL, true); +} + void cnl_suspend(struct pmc_dev *pmcdev) { + s2idle_cpu_quirk(disable_c1_auto_demote); + /* * Due to a hardware limitation, the GBE LTR blocks PC10 * when a cable is attached. To unblock PC10 during suspend, @@ -218,6 +269,8 @@ void cnl_suspend(struct pmc_dev *pmcdev) int cnl_resume(struct pmc_dev *pmcdev) { + s2idle_cpu_quirk(restore_c1_auto_demote); + pmc_core_send_ltr_ignore(pmcdev, 3, 0); return pmc_core_resume_common(pmcdev); From 9df193087b9ed58a244faa516334539661fe7f11 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:18 +0000 Subject: [PATCH 17/69] platform/x86/amd/hsmp: Create hsmp/ directory MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is in preparation to splitting ACPI and platform device drivers. Create and move hsmp specific code into its own directory, no logical changes. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241021111428.2676884-1-suma.hegde@amd.com Signed-off-by: Ilpo Järvinen --- MAINTAINERS | 2 +- drivers/platform/x86/amd/Kconfig | 14 +------------- drivers/platform/x86/amd/Makefile | 3 +-- drivers/platform/x86/amd/hsmp/Kconfig | 17 +++++++++++++++++ drivers/platform/x86/amd/hsmp/Makefile | 8 ++++++++ drivers/platform/x86/amd/{ => hsmp}/hsmp.c | 0 6 files changed, 28 insertions(+), 16 deletions(-) create mode 100644 drivers/platform/x86/amd/hsmp/Kconfig create mode 100644 drivers/platform/x86/amd/hsmp/Makefile rename drivers/platform/x86/amd/{ => hsmp}/hsmp.c (100%) diff --git a/MAINTAINERS b/MAINTAINERS index c27f3190737f..67f967175e11 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1081,7 +1081,7 @@ S: Maintained F: Documentation/arch/x86/amd_hsmp.rst F: arch/x86/include/asm/amd_hsmp.h F: arch/x86/include/uapi/asm/amd_hsmp.h -F: drivers/platform/x86/amd/hsmp.c +F: drivers/platform/x86/amd/hsmp/ AMD IOMMU (AMD-VI) M: Joerg Roedel diff --git a/drivers/platform/x86/amd/Kconfig b/drivers/platform/x86/amd/Kconfig index f88682d36447..2c671cc17d63 100644 --- a/drivers/platform/x86/amd/Kconfig +++ b/drivers/platform/x86/amd/Kconfig @@ -3,22 +3,10 @@ # AMD x86 Platform Specific Drivers # +source "drivers/platform/x86/amd/hsmp/Kconfig" source "drivers/platform/x86/amd/pmf/Kconfig" source "drivers/platform/x86/amd/pmc/Kconfig" -config AMD_HSMP - tristate "AMD HSMP Driver" - depends on AMD_NB && X86_64 && ACPI - help - The driver provides a way for user space tools to monitor and manage - system management functionality on EPYC server CPUs from AMD. - - Host System Management Port (HSMP) interface is a mailbox interface - between the x86 core and the System Management Unit (SMU) firmware. - - If you choose to compile this driver as a module the module will be - called amd_hsmp. - config AMD_WBRF bool "AMD Wifi RF Band mitigations (WBRF)" depends on ACPI diff --git a/drivers/platform/x86/amd/Makefile b/drivers/platform/x86/amd/Makefile index dcec0a46f8af..96ec24c8701b 100644 --- a/drivers/platform/x86/amd/Makefile +++ b/drivers/platform/x86/amd/Makefile @@ -5,7 +5,6 @@ # obj-$(CONFIG_AMD_PMC) += pmc/ -amd_hsmp-y := hsmp.o -obj-$(CONFIG_AMD_HSMP) += amd_hsmp.o +obj-y += hsmp/ obj-$(CONFIG_AMD_PMF) += pmf/ obj-$(CONFIG_AMD_WBRF) += wbrf.o diff --git a/drivers/platform/x86/amd/hsmp/Kconfig b/drivers/platform/x86/amd/hsmp/Kconfig new file mode 100644 index 000000000000..b55d4ed9bceb --- /dev/null +++ b/drivers/platform/x86/amd/hsmp/Kconfig @@ -0,0 +1,17 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# AMD HSMP Driver +# + +config AMD_HSMP + tristate "AMD HSMP Driver" + depends on AMD_NB && X86_64 && ACPI + help + The driver provides a way for user space tools to monitor and manage + system management functionality on EPYC server CPUs from AMD. + + Host System Management Port (HSMP) interface is a mailbox interface + between the x86 core and the System Management Unit (SMU) firmware. + + If you choose to compile this driver as a module the module will be + called amd_hsmp. diff --git a/drivers/platform/x86/amd/hsmp/Makefile b/drivers/platform/x86/amd/hsmp/Makefile new file mode 100644 index 000000000000..fda64906a5e8 --- /dev/null +++ b/drivers/platform/x86/amd/hsmp/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for drivers/platform/x86/amd/hsmp +# AMD HSMP Driver +# + +obj-$(CONFIG_AMD_HSMP) += amd_hsmp.o +amd_hsmp-objs := hsmp.o diff --git a/drivers/platform/x86/amd/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c similarity index 100% rename from drivers/platform/x86/amd/hsmp.c rename to drivers/platform/x86/amd/hsmp/hsmp.c From 1e1c4c0ab3088cc94a9bafcd716e4054b3344be1 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:19 +0000 Subject: [PATCH 18/69] platform/x86/amd/hsmp: Create wrapper function init_acpi() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is in preparation to splitting ACPI and platform device drivers. Having init_acpi() helps in smooth code movement. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241021111428.2676884-2-suma.hegde@amd.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/hsmp.c | 95 ++++++++++++++++++---------- 1 file changed, 61 insertions(+), 34 deletions(-) diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index fe8948729bba..f7b9964522de 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -778,6 +778,11 @@ static int init_platform_device(struct device *dev) dev_err(dev, "Is HSMP disabled in BIOS ?\n"); return ret; } + ret = hsmp_cache_proto_ver(i); + if (ret) { + dev_err(dev, "Failed to read HSMP protocol version\n"); + return ret; + } } return 0; @@ -789,10 +794,53 @@ static const struct acpi_device_id amd_hsmp_acpi_ids[] = { }; MODULE_DEVICE_TABLE(acpi, amd_hsmp_acpi_ids); +static bool check_acpi_support(struct device *dev) +{ + struct acpi_device *adev = ACPI_COMPANION(dev); + + if (adev && !acpi_match_device_ids(adev, amd_hsmp_acpi_ids)) + return true; + + return false; +} + +static int init_acpi(struct device *dev) +{ + u16 sock_ind; + int ret; + + ret = hsmp_get_uid(dev, &sock_ind); + if (ret) + return ret; + if (sock_ind >= plat_dev.num_sockets) + return -EINVAL; + + ret = hsmp_parse_acpi_table(dev, sock_ind); + if (ret) { + dev_err(dev, "Failed to parse ACPI table\n"); + return ret; + } + + /* Test the hsmp interface */ + ret = hsmp_test(sock_ind, 0xDEADBEEF); + if (ret) { + dev_err(dev, "HSMP test message failed on Fam:%x model:%x\n", + boot_cpu_data.x86, boot_cpu_data.x86_model); + dev_err(dev, "Is HSMP disabled in BIOS ?\n"); + return ret; + } + + ret = hsmp_cache_proto_ver(sock_ind); + if (ret) { + dev_err(dev, "Failed to read HSMP protocol version\n"); + return ret; + } + + return ret; +} + static int hsmp_pltdrv_probe(struct platform_device *pdev) { - struct acpi_device *adev; - u16 sock_ind = 0; int ret; /* @@ -809,46 +857,25 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev) if (!plat_dev.sock) return -ENOMEM; } - adev = ACPI_COMPANION(&pdev->dev); - if (adev && !acpi_match_device_ids(adev, amd_hsmp_acpi_ids)) { - ret = hsmp_get_uid(&pdev->dev, &sock_ind); + if (check_acpi_support(&pdev->dev)) { + ret = init_acpi(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "Failed to init HSMP mailbox\n"); + return ret; + } + ret = hsmp_create_acpi_sysfs_if(&pdev->dev); if (ret) - return ret; - if (sock_ind >= plat_dev.num_sockets) - return -EINVAL; - ret = hsmp_parse_acpi_table(&pdev->dev, sock_ind); - if (ret) { - dev_err(&pdev->dev, "Failed to parse ACPI table\n"); - return ret; - } - /* Test the hsmp interface */ - ret = hsmp_test(sock_ind, 0xDEADBEEF); - if (ret) { - dev_err(&pdev->dev, "HSMP test message failed on Fam:%x model:%x\n", - boot_cpu_data.x86, boot_cpu_data.x86_model); - dev_err(&pdev->dev, "Is HSMP disabled in BIOS ?\n"); - return ret; - } + dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); } else { ret = init_platform_device(&pdev->dev); if (ret) { dev_err(&pdev->dev, "Failed to init HSMP mailbox\n"); return ret; } - } - - ret = hsmp_cache_proto_ver(sock_ind); - if (ret) { - dev_err(&pdev->dev, "Failed to read HSMP protocol version\n"); - return ret; - } - - if (plat_dev.is_acpi_device) - ret = hsmp_create_acpi_sysfs_if(&pdev->dev); - else ret = hsmp_create_non_acpi_sysfs_if(&pdev->dev); - if (ret) - dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); + if (ret) + dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); + } if (!plat_dev.is_probed) { plat_dev.hsmp_device.name = HSMP_CDEV_NAME; From d9a621ebddf2d3351db4ae5df2547b48647d4c11 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:20 +0000 Subject: [PATCH 19/69] platform/x86/amd/hsmp: Convert amd_hsmp_rdwr() to a function pointer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is in preparation to ACPI, Non-ACPI split. amd_hsmp_rdwr() is used to access HSMP protocol registers. ACPI and Non-ACPI use different methods to access these registers. Now that code is split and common functionality is kept in hsmp.c we need to define a function pointer to handle these functions separately. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241021111428.2676884-3-suma.hegde@amd.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/hsmp.c | 30 +++++++++++----------------- 1 file changed, 12 insertions(+), 18 deletions(-) diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index f7b9964522de..759c824f2c4f 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -82,6 +82,7 @@ struct hsmp_socket { struct pci_dev *root; struct device *dev; u16 sock_ind; + int (*amd_hsmp_rdwr)(struct hsmp_socket *sock, u32 off, u32 *val, bool rw); }; struct hsmp_plat_device { @@ -114,22 +115,13 @@ static int amd_hsmp_pci_rdwr(struct hsmp_socket *sock, u32 offset, return ret; } -static void amd_hsmp_acpi_rdwr(struct hsmp_socket *sock, u32 offset, - u32 *value, bool write) +static int amd_hsmp_acpi_rdwr(struct hsmp_socket *sock, u32 offset, + u32 *value, bool write) { if (write) iowrite32(*value, sock->virt_base_addr + offset); else *value = ioread32(sock->virt_base_addr + offset); -} - -static int amd_hsmp_rdwr(struct hsmp_socket *sock, u32 offset, - u32 *value, bool write) -{ - if (plat_dev.is_acpi_device) - amd_hsmp_acpi_rdwr(sock, offset, value, write); - else - return amd_hsmp_pci_rdwr(sock, offset, value, write); return 0; } @@ -156,7 +148,7 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms /* Clear the status register */ mbox_status = HSMP_STATUS_NOT_READY; - ret = amd_hsmp_rdwr(sock, mbinfo->msg_resp_off, &mbox_status, HSMP_WR); + ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_resp_off, &mbox_status, HSMP_WR); if (ret) { pr_err("Error %d clearing mailbox status register\n", ret); return ret; @@ -165,8 +157,8 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms index = 0; /* Write any message arguments */ while (index < msg->num_args) { - ret = amd_hsmp_rdwr(sock, mbinfo->msg_arg_off + (index << 2), - &msg->args[index], HSMP_WR); + ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_arg_off + (index << 2), + &msg->args[index], HSMP_WR); if (ret) { pr_err("Error %d writing message argument %d\n", ret, index); return ret; @@ -175,7 +167,7 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms } /* Write the message ID which starts the operation */ - ret = amd_hsmp_rdwr(sock, mbinfo->msg_id_off, &msg->msg_id, HSMP_WR); + ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_id_off, &msg->msg_id, HSMP_WR); if (ret) { pr_err("Error %d writing message ID %u\n", ret, msg->msg_id); return ret; @@ -192,7 +184,7 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms timeout = jiffies + msecs_to_jiffies(HSMP_MSG_TIMEOUT); while (time_before(jiffies, timeout)) { - ret = amd_hsmp_rdwr(sock, mbinfo->msg_resp_off, &mbox_status, HSMP_RD); + ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_resp_off, &mbox_status, HSMP_RD); if (ret) { pr_err("Error %d reading mailbox status\n", ret); return ret; @@ -227,8 +219,8 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms */ index = 0; while (index < msg->response_sz) { - ret = amd_hsmp_rdwr(sock, mbinfo->msg_arg_off + (index << 2), - &msg->args[index], HSMP_RD); + ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_arg_off + (index << 2), + &msg->args[index], HSMP_RD); if (ret) { pr_err("Error %d reading response %u for message ID:%u\n", ret, index, msg->msg_id); @@ -545,6 +537,7 @@ static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) sock->sock_ind = sock_ind; sock->dev = dev; + sock->amd_hsmp_rdwr = amd_hsmp_acpi_rdwr; plat_dev.is_acpi_device = true; sema_init(&sock->hsmp_sem, 1); @@ -756,6 +749,7 @@ static int init_platform_device(struct device *dev) sock->sock_ind = i; sock->dev = dev; sock->mbinfo.base_addr = SMN_HSMP_BASE; + sock->amd_hsmp_rdwr = amd_hsmp_pci_rdwr; /* * This is a transitional change from non-ACPI to ACPI, only From 1757d2b8dcf6810d7356d8420606df5080e36260 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:21 +0000 Subject: [PATCH 20/69] platform/x86/amd/hsmp: Move structure and macros to header file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is in preparation to splitting ACPI and platform device drivers. No logical change, move common structures, macros to hsmp.h, add missed header files, remove unwanted header inclusions, and re-order the header file in hsmp.c file. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241021111428.2676884-4-suma.hegde@amd.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/hsmp.c | 47 +++------------------- drivers/platform/x86/amd/hsmp/hsmp.h | 58 ++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+), 41 deletions(-) create mode 100644 drivers/platform/x86/amd/hsmp/hsmp.h diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index 759c824f2c4f..ea2f13bda629 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -11,14 +11,17 @@ #include #include + +#include #include -#include -#include +#include #include #include #include #include -#include +#include + +#include "hsmp.h" #define DRIVER_NAME "amd_hsmp" #define DRIVER_VERSION "2.2" @@ -51,49 +54,11 @@ #define HSMP_INDEX_REG 0xc4 #define HSMP_DATA_REG 0xc8 -#define HSMP_CDEV_NAME "hsmp_cdev" -#define HSMP_DEVNODE_NAME "hsmp" -#define HSMP_METRICS_TABLE_NAME "metrics_bin" - -#define HSMP_ATTR_GRP_NAME_SIZE 10 - /* These are the strings specified in ACPI table */ #define MSG_IDOFF_STR "MsgIdOffset" #define MSG_ARGOFF_STR "MsgArgOffset" #define MSG_RESPOFF_STR "MsgRspOffset" -#define MAX_AMD_SOCKETS 8 - -struct hsmp_mbaddr_info { - u32 base_addr; - u32 msg_id_off; - u32 msg_resp_off; - u32 msg_arg_off; - u32 size; -}; - -struct hsmp_socket { - struct bin_attribute hsmp_attr; - struct hsmp_mbaddr_info mbinfo; - void __iomem *metric_tbl_addr; - void __iomem *virt_base_addr; - struct semaphore hsmp_sem; - char name[HSMP_ATTR_GRP_NAME_SIZE]; - struct pci_dev *root; - struct device *dev; - u16 sock_ind; - int (*amd_hsmp_rdwr)(struct hsmp_socket *sock, u32 off, u32 *val, bool rw); -}; - -struct hsmp_plat_device { - struct miscdevice hsmp_device; - struct hsmp_socket *sock; - u32 proto_ver; - u16 num_sockets; - bool is_acpi_device; - bool is_probed; -}; - static struct hsmp_plat_device plat_dev; static int amd_hsmp_pci_rdwr(struct hsmp_socket *sock, u32 offset, diff --git a/drivers/platform/x86/amd/hsmp/hsmp.h b/drivers/platform/x86/amd/hsmp/hsmp.h new file mode 100644 index 000000000000..d54b9681d514 --- /dev/null +++ b/drivers/platform/x86/amd/hsmp/hsmp.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * AMD HSMP Platform Driver + * Copyright (c) 2024, AMD. + * All Rights Reserved. + * + * Header file for HSMP driver + */ + +#ifndef HSMP_H +#define HSMP_H + +#include +#include +#include +#include +#include +#include + +#define HSMP_METRICS_TABLE_NAME "metrics_bin" + +#define HSMP_ATTR_GRP_NAME_SIZE 10 + +#define MAX_AMD_SOCKETS 8 + +#define HSMP_CDEV_NAME "hsmp_cdev" +#define HSMP_DEVNODE_NAME "hsmp" + +struct hsmp_mbaddr_info { + u32 base_addr; + u32 msg_id_off; + u32 msg_resp_off; + u32 msg_arg_off; + u32 size; +}; + +struct hsmp_socket { + struct bin_attribute hsmp_attr; + struct hsmp_mbaddr_info mbinfo; + void __iomem *metric_tbl_addr; + void __iomem *virt_base_addr; + struct semaphore hsmp_sem; + char name[HSMP_ATTR_GRP_NAME_SIZE]; + struct pci_dev *root; + struct device *dev; + u16 sock_ind; + int (*amd_hsmp_rdwr)(struct hsmp_socket *sock, u32 off, u32 *val, bool rw); +}; + +struct hsmp_plat_device { + struct miscdevice hsmp_device; + struct hsmp_socket *sock; + u32 proto_ver; + u16 num_sockets; + bool is_acpi_device; + bool is_probed; +}; +#endif /* HSMP_H */ From e47c018a0ee6962fe3dd895407e2c49538cc066d Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:22 +0000 Subject: [PATCH 21/69] platform/x86/amd/hsmp: Move platform device specific code to plat.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit An upcoming change splits HSMP driver into ACPI and platform device variants. Prepare for the split by moving platform device part to plat.c. No functinality/logical changes. Common code which can be used by ACPI and platform device remains in hsmp.c. ACPI code in hsmp.c will be moved to acpi.c in next patch. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241021111428.2676884-5-suma.hegde@amd.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/Makefile | 2 +- drivers/platform/x86/amd/hsmp/hsmp.c | 138 ++----------------------- drivers/platform/x86/amd/hsmp/hsmp.h | 14 +++ drivers/platform/x86/amd/hsmp/plat.c | 136 ++++++++++++++++++++++++ 4 files changed, 161 insertions(+), 129 deletions(-) create mode 100644 drivers/platform/x86/amd/hsmp/plat.c diff --git a/drivers/platform/x86/amd/hsmp/Makefile b/drivers/platform/x86/amd/hsmp/Makefile index fda64906a5e8..fb8ba04b2f0d 100644 --- a/drivers/platform/x86/amd/hsmp/Makefile +++ b/drivers/platform/x86/amd/hsmp/Makefile @@ -5,4 +5,4 @@ # obj-$(CONFIG_AMD_HSMP) += amd_hsmp.o -amd_hsmp-objs := hsmp.o +amd_hsmp-objs := hsmp.o plat.o diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index ea2f13bda629..1b2cd36c437f 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include @@ -40,45 +39,12 @@ #define HSMP_WR true #define HSMP_RD false -/* - * To access specific HSMP mailbox register, s/w writes the SMN address of HSMP mailbox - * register into the SMN_INDEX register, and reads/writes the SMN_DATA reg. - * Below are required SMN address for HSMP Mailbox register offsets in SMU address space - */ -#define SMN_HSMP_BASE 0x3B00000 -#define SMN_HSMP_MSG_ID 0x0010534 -#define SMN_HSMP_MSG_ID_F1A_M0H 0x0010934 -#define SMN_HSMP_MSG_RESP 0x0010980 -#define SMN_HSMP_MSG_DATA 0x00109E0 - -#define HSMP_INDEX_REG 0xc4 -#define HSMP_DATA_REG 0xc8 - /* These are the strings specified in ACPI table */ #define MSG_IDOFF_STR "MsgIdOffset" #define MSG_ARGOFF_STR "MsgArgOffset" #define MSG_RESPOFF_STR "MsgRspOffset" -static struct hsmp_plat_device plat_dev; - -static int amd_hsmp_pci_rdwr(struct hsmp_socket *sock, u32 offset, - u32 *value, bool write) -{ - int ret; - - if (!sock->root) - return -ENODEV; - - ret = pci_write_config_dword(sock->root, HSMP_INDEX_REG, - sock->mbinfo.base_addr + offset); - if (ret) - return ret; - - ret = (write ? pci_write_config_dword(sock->root, HSMP_DATA_REG, *value) - : pci_read_config_dword(sock->root, HSMP_DATA_REG, value)); - - return ret; -} +struct hsmp_plat_device plat_dev; static int amd_hsmp_acpi_rdwr(struct hsmp_socket *sock, u32 offset, u32 *value, bool write) @@ -248,7 +214,7 @@ int hsmp_send_message(struct hsmp_message *msg) } EXPORT_SYMBOL_GPL(hsmp_send_message); -static int hsmp_test(u16 sock_ind, u32 value) +int hsmp_test(u16 sock_ind, u32 value) { struct hsmp_message msg = { 0 }; int ret; @@ -516,9 +482,9 @@ static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) return hsmp_read_acpi_dsd(sock); } -static ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, - loff_t off, size_t count) +ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t off, size_t count) { struct hsmp_socket *sock = bin_attr->private; struct hsmp_message msg = { 0 }; @@ -577,8 +543,8 @@ static int hsmp_get_tbl_dram_base(u16 sock_ind) return 0; } -static umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, - struct bin_attribute *battr, int id) +umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, + struct bin_attribute *battr, int id) { if (plat_dev.proto_ver == HSMP_PROTO_VER6) return battr->attr.mode; @@ -607,8 +573,8 @@ static int hsmp_init_metric_tbl_bin_attr(struct bin_attribute **hattrs, u16 sock /* One bin sysfs for metrics table */ #define NUM_HSMP_ATTRS 1 -static int hsmp_create_attr_list(struct attribute_group *attr_grp, - struct device *dev, u16 sock_ind) +int hsmp_create_attr_list(struct attribute_group *attr_grp, + struct device *dev, u16 sock_ind) { struct bin_attribute **hsmp_bin_attrs; @@ -624,36 +590,6 @@ static int hsmp_create_attr_list(struct attribute_group *attr_grp, return hsmp_init_metric_tbl_bin_attr(hsmp_bin_attrs, sock_ind); } -static int hsmp_create_non_acpi_sysfs_if(struct device *dev) -{ - const struct attribute_group **hsmp_attr_grps; - struct attribute_group *attr_grp; - u16 i; - - hsmp_attr_grps = devm_kcalloc(dev, plat_dev.num_sockets + 1, - sizeof(*hsmp_attr_grps), - GFP_KERNEL); - if (!hsmp_attr_grps) - return -ENOMEM; - - /* Create a sysfs directory for each socket */ - for (i = 0; i < plat_dev.num_sockets; i++) { - attr_grp = devm_kzalloc(dev, sizeof(struct attribute_group), - GFP_KERNEL); - if (!attr_grp) - return -ENOMEM; - - snprintf(plat_dev.sock[i].name, HSMP_ATTR_GRP_NAME_SIZE, "socket%u", (u8)i); - attr_grp->name = plat_dev.sock[i].name; - attr_grp->is_bin_visible = hsmp_is_sock_attr_visible; - hsmp_attr_grps[i] = attr_grp; - - hsmp_create_attr_list(attr_grp, dev, i); - } - - return device_add_groups(dev, hsmp_attr_grps); -} - static int hsmp_create_acpi_sysfs_if(struct device *dev) { struct attribute_group *attr_grp; @@ -677,7 +613,7 @@ static int hsmp_create_acpi_sysfs_if(struct device *dev) return devm_device_add_group(dev, attr_grp); } -static int hsmp_cache_proto_ver(u16 sock_ind) +int hsmp_cache_proto_ver(u16 sock_ind) { struct hsmp_message msg = { 0 }; int ret; @@ -693,60 +629,6 @@ static int hsmp_cache_proto_ver(u16 sock_ind) return ret; } -static inline bool is_f1a_m0h(void) -{ - if (boot_cpu_data.x86 == 0x1A && boot_cpu_data.x86_model <= 0x0F) - return true; - - return false; -} - -static int init_platform_device(struct device *dev) -{ - struct hsmp_socket *sock; - int ret, i; - - for (i = 0; i < plat_dev.num_sockets; i++) { - if (!node_to_amd_nb(i)) - return -ENODEV; - sock = &plat_dev.sock[i]; - sock->root = node_to_amd_nb(i)->root; - sock->sock_ind = i; - sock->dev = dev; - sock->mbinfo.base_addr = SMN_HSMP_BASE; - sock->amd_hsmp_rdwr = amd_hsmp_pci_rdwr; - - /* - * This is a transitional change from non-ACPI to ACPI, only - * family 0x1A, model 0x00 platform is supported for both ACPI and non-ACPI. - */ - if (is_f1a_m0h()) - sock->mbinfo.msg_id_off = SMN_HSMP_MSG_ID_F1A_M0H; - else - sock->mbinfo.msg_id_off = SMN_HSMP_MSG_ID; - - sock->mbinfo.msg_resp_off = SMN_HSMP_MSG_RESP; - sock->mbinfo.msg_arg_off = SMN_HSMP_MSG_DATA; - sema_init(&sock->hsmp_sem, 1); - - /* Test the hsmp interface on each socket */ - ret = hsmp_test(i, 0xDEADBEEF); - if (ret) { - dev_err(dev, "HSMP test message failed on Fam:%x model:%x\n", - boot_cpu_data.x86, boot_cpu_data.x86_model); - dev_err(dev, "Is HSMP disabled in BIOS ?\n"); - return ret; - } - ret = hsmp_cache_proto_ver(i); - if (ret) { - dev_err(dev, "Failed to read HSMP protocol version\n"); - return ret; - } - } - - return 0; -} - static const struct acpi_device_id amd_hsmp_acpi_ids[] = { {ACPI_HSMP_DEVICE_HID, 0}, {} diff --git a/drivers/platform/x86/amd/hsmp/hsmp.h b/drivers/platform/x86/amd/hsmp/hsmp.h index d54b9681d514..d59a9efb4799 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.h +++ b/drivers/platform/x86/amd/hsmp/hsmp.h @@ -55,4 +55,18 @@ struct hsmp_plat_device { bool is_acpi_device; bool is_probed; }; + +extern struct hsmp_plat_device plat_dev; + +ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t off, size_t count); +int hsmp_create_non_acpi_sysfs_if(struct device *dev); +int hsmp_cache_proto_ver(u16 sock_ind); +umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, + struct bin_attribute *battr, int id); +int hsmp_create_attr_list(struct attribute_group *attr_grp, + struct device *dev, u16 sock_ind); +int hsmp_test(u16 sock_ind, u32 value); +int init_platform_device(struct device *dev); #endif /* HSMP_H */ diff --git a/drivers/platform/x86/amd/hsmp/plat.c b/drivers/platform/x86/amd/hsmp/plat.c new file mode 100644 index 000000000000..85a104859acd --- /dev/null +++ b/drivers/platform/x86/amd/hsmp/plat.c @@ -0,0 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * AMD HSMP Platform Driver + * Copyright (c) 2024, AMD. + * All Rights Reserved. + * + * This file provides platform device implementations. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include + +#include +#include +#include + +#include "hsmp.h" + +/* + * To access specific HSMP mailbox register, s/w writes the SMN address of HSMP mailbox + * register into the SMN_INDEX register, and reads/writes the SMN_DATA reg. + * Below are required SMN address for HSMP Mailbox register offsets in SMU address space + */ +#define SMN_HSMP_BASE 0x3B00000 +#define SMN_HSMP_MSG_ID 0x0010534 +#define SMN_HSMP_MSG_ID_F1A_M0H 0x0010934 +#define SMN_HSMP_MSG_RESP 0x0010980 +#define SMN_HSMP_MSG_DATA 0x00109E0 + +#define HSMP_INDEX_REG 0xc4 +#define HSMP_DATA_REG 0xc8 + +static int amd_hsmp_pci_rdwr(struct hsmp_socket *sock, u32 offset, + u32 *value, bool write) +{ + int ret; + + if (!sock->root) + return -ENODEV; + + ret = pci_write_config_dword(sock->root, HSMP_INDEX_REG, + sock->mbinfo.base_addr + offset); + if (ret) + return ret; + + ret = (write ? pci_write_config_dword(sock->root, HSMP_DATA_REG, *value) + : pci_read_config_dword(sock->root, HSMP_DATA_REG, value)); + + return ret; +} + +int hsmp_create_non_acpi_sysfs_if(struct device *dev) +{ + const struct attribute_group **hsmp_attr_grps; + struct attribute_group *attr_grp; + u16 i; + + hsmp_attr_grps = devm_kcalloc(dev, plat_dev.num_sockets + 1, + sizeof(*hsmp_attr_grps), + GFP_KERNEL); + if (!hsmp_attr_grps) + return -ENOMEM; + + /* Create a sysfs directory for each socket */ + for (i = 0; i < plat_dev.num_sockets; i++) { + attr_grp = devm_kzalloc(dev, sizeof(struct attribute_group), + GFP_KERNEL); + if (!attr_grp) + return -ENOMEM; + + snprintf(plat_dev.sock[i].name, HSMP_ATTR_GRP_NAME_SIZE, "socket%u", (u8)i); + attr_grp->name = plat_dev.sock[i].name; + attr_grp->is_bin_visible = hsmp_is_sock_attr_visible; + hsmp_attr_grps[i] = attr_grp; + + hsmp_create_attr_list(attr_grp, dev, i); + } + + return device_add_groups(dev, hsmp_attr_grps); +} + +static inline bool is_f1a_m0h(void) +{ + if (boot_cpu_data.x86 == 0x1A && boot_cpu_data.x86_model <= 0x0F) + return true; + + return false; +} + +int init_platform_device(struct device *dev) +{ + struct hsmp_socket *sock; + int ret, i; + + for (i = 0; i < plat_dev.num_sockets; i++) { + if (!node_to_amd_nb(i)) + return -ENODEV; + sock = &plat_dev.sock[i]; + sock->root = node_to_amd_nb(i)->root; + sock->sock_ind = i; + sock->dev = dev; + sock->mbinfo.base_addr = SMN_HSMP_BASE; + sock->amd_hsmp_rdwr = amd_hsmp_pci_rdwr; + + /* + * This is a transitional change from non-ACPI to ACPI, only + * family 0x1A, model 0x00 platform is supported for both ACPI and non-ACPI. + */ + if (is_f1a_m0h()) + sock->mbinfo.msg_id_off = SMN_HSMP_MSG_ID_F1A_M0H; + else + sock->mbinfo.msg_id_off = SMN_HSMP_MSG_ID; + + sock->mbinfo.msg_resp_off = SMN_HSMP_MSG_RESP; + sock->mbinfo.msg_arg_off = SMN_HSMP_MSG_DATA; + sema_init(&sock->hsmp_sem, 1); + + /* Test the hsmp interface on each socket */ + ret = hsmp_test(i, 0xDEADBEEF); + if (ret) { + dev_err(dev, "HSMP test message failed on Fam:%x model:%x\n", + boot_cpu_data.x86, boot_cpu_data.x86_model); + dev_err(dev, "Is HSMP disabled in BIOS ?\n"); + return ret; + } + + ret = hsmp_cache_proto_ver(i); + if (ret) { + dev_err(dev, "Failed to read HSMP protocol version\n"); + return ret; + } + } + + return 0; +} From 969f915473d8cb0e298234ee313370b6a2da69f3 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:23 +0000 Subject: [PATCH 22/69] platform/x86/amd/hsmp: Move ACPI code to acpi.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit An upcoming change splits HSMP driver into ACPI and platform device variants. Prepare for the split by moving ACPI related code to acpi.c from hsmp.c. Common code is kept in hsmp.c. No logical/functional change. We still have one driver at this point, the driver probe will be split in the next patch. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241021111428.2676884-6-suma.hegde@amd.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/Makefile | 2 +- drivers/platform/x86/amd/hsmp/acpi.c | 272 +++++++++++++++++++++++++ drivers/platform/x86/amd/hsmp/hsmp.c | 250 ----------------------- drivers/platform/x86/amd/hsmp/hsmp.h | 2 + 4 files changed, 275 insertions(+), 251 deletions(-) create mode 100644 drivers/platform/x86/amd/hsmp/acpi.c diff --git a/drivers/platform/x86/amd/hsmp/Makefile b/drivers/platform/x86/amd/hsmp/Makefile index fb8ba04b2f0d..0cc92865c0a2 100644 --- a/drivers/platform/x86/amd/hsmp/Makefile +++ b/drivers/platform/x86/amd/hsmp/Makefile @@ -5,4 +5,4 @@ # obj-$(CONFIG_AMD_HSMP) += amd_hsmp.o -amd_hsmp-objs := hsmp.o plat.o +amd_hsmp-objs := hsmp.o plat.o acpi.o diff --git a/drivers/platform/x86/amd/hsmp/acpi.c b/drivers/platform/x86/amd/hsmp/acpi.c new file mode 100644 index 000000000000..61c072216fb7 --- /dev/null +++ b/drivers/platform/x86/amd/hsmp/acpi.c @@ -0,0 +1,272 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * AMD HSMP Platform Driver + * Copyright (c) 2024, AMD. + * All Rights Reserved. + * + * This file provides an ACPI based driver implementation for HSMP interface. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "hsmp.h" + +/* These are the strings specified in ACPI table */ +#define MSG_IDOFF_STR "MsgIdOffset" +#define MSG_ARGOFF_STR "MsgArgOffset" +#define MSG_RESPOFF_STR "MsgRspOffset" + +static int amd_hsmp_acpi_rdwr(struct hsmp_socket *sock, u32 offset, + u32 *value, bool write) +{ + if (write) + iowrite32(*value, sock->virt_base_addr + offset); + else + *value = ioread32(sock->virt_base_addr + offset); + + return 0; +} + +/* This is the UUID used for HSMP */ +static const guid_t acpi_hsmp_uuid = GUID_INIT(0xb74d619d, 0x5707, 0x48bd, + 0xa6, 0x9f, 0x4e, 0xa2, + 0x87, 0x1f, 0xc2, 0xf6); + +static inline bool is_acpi_hsmp_uuid(union acpi_object *obj) +{ + if (obj->type == ACPI_TYPE_BUFFER && obj->buffer.length == UUID_SIZE) + return guid_equal((guid_t *)obj->buffer.pointer, &acpi_hsmp_uuid); + + return false; +} + +static inline int hsmp_get_uid(struct device *dev, u16 *sock_ind) +{ + char *uid; + + /* + * UID (ID00, ID01..IDXX) is used for differentiating sockets, + * read it and strip the "ID" part of it and convert the remaining + * bytes to integer. + */ + uid = acpi_device_uid(ACPI_COMPANION(dev)); + + return kstrtou16(uid + 2, 10, sock_ind); +} + +static acpi_status hsmp_resource(struct acpi_resource *res, void *data) +{ + struct hsmp_socket *sock = data; + struct resource r; + + switch (res->type) { + case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: + if (!acpi_dev_resource_memory(res, &r)) + return AE_ERROR; + if (!r.start || r.end < r.start || !(r.flags & IORESOURCE_MEM_WRITEABLE)) + return AE_ERROR; + sock->mbinfo.base_addr = r.start; + sock->mbinfo.size = resource_size(&r); + break; + case ACPI_RESOURCE_TYPE_END_TAG: + break; + default: + return AE_ERROR; + } + + return AE_OK; +} + +static int hsmp_read_acpi_dsd(struct hsmp_socket *sock) +{ + struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *guid, *mailbox_package; + union acpi_object *dsd; + acpi_status status; + int ret = 0; + int j; + + status = acpi_evaluate_object_typed(ACPI_HANDLE(sock->dev), "_DSD", NULL, + &buf, ACPI_TYPE_PACKAGE); + if (ACPI_FAILURE(status)) { + dev_err(sock->dev, "Failed to read mailbox reg offsets from DSD table, err: %s\n", + acpi_format_exception(status)); + return -ENODEV; + } + + dsd = buf.pointer; + + /* HSMP _DSD property should contain 2 objects. + * 1. guid which is an acpi object of type ACPI_TYPE_BUFFER + * 2. mailbox which is an acpi object of type ACPI_TYPE_PACKAGE + * This mailbox object contains 3 more acpi objects of type + * ACPI_TYPE_PACKAGE for holding msgid, msgresp, msgarg offsets + * these packages inturn contain 2 acpi objects of type + * ACPI_TYPE_STRING and ACPI_TYPE_INTEGER + */ + if (!dsd || dsd->type != ACPI_TYPE_PACKAGE || dsd->package.count != 2) { + ret = -EINVAL; + goto free_buf; + } + + guid = &dsd->package.elements[0]; + mailbox_package = &dsd->package.elements[1]; + if (!is_acpi_hsmp_uuid(guid) || mailbox_package->type != ACPI_TYPE_PACKAGE) { + dev_err(sock->dev, "Invalid hsmp _DSD table data\n"); + ret = -EINVAL; + goto free_buf; + } + + for (j = 0; j < mailbox_package->package.count; j++) { + union acpi_object *msgobj, *msgstr, *msgint; + + msgobj = &mailbox_package->package.elements[j]; + msgstr = &msgobj->package.elements[0]; + msgint = &msgobj->package.elements[1]; + + /* package should have 1 string and 1 integer object */ + if (msgobj->type != ACPI_TYPE_PACKAGE || + msgstr->type != ACPI_TYPE_STRING || + msgint->type != ACPI_TYPE_INTEGER) { + ret = -EINVAL; + goto free_buf; + } + + if (!strncmp(msgstr->string.pointer, MSG_IDOFF_STR, + msgstr->string.length)) { + sock->mbinfo.msg_id_off = msgint->integer.value; + } else if (!strncmp(msgstr->string.pointer, MSG_RESPOFF_STR, + msgstr->string.length)) { + sock->mbinfo.msg_resp_off = msgint->integer.value; + } else if (!strncmp(msgstr->string.pointer, MSG_ARGOFF_STR, + msgstr->string.length)) { + sock->mbinfo.msg_arg_off = msgint->integer.value; + } else { + ret = -ENOENT; + goto free_buf; + } + } + + if (!sock->mbinfo.msg_id_off || !sock->mbinfo.msg_resp_off || + !sock->mbinfo.msg_arg_off) + ret = -EINVAL; + +free_buf: + ACPI_FREE(buf.pointer); + return ret; +} + +static int hsmp_read_acpi_crs(struct hsmp_socket *sock) +{ + acpi_status status; + + status = acpi_walk_resources(ACPI_HANDLE(sock->dev), METHOD_NAME__CRS, + hsmp_resource, sock); + if (ACPI_FAILURE(status)) { + dev_err(sock->dev, "Failed to look up MP1 base address from CRS method, err: %s\n", + acpi_format_exception(status)); + return -EINVAL; + } + if (!sock->mbinfo.base_addr || !sock->mbinfo.size) + return -EINVAL; + + /* The mapped region should be un-cached */ + sock->virt_base_addr = devm_ioremap_uc(sock->dev, sock->mbinfo.base_addr, + sock->mbinfo.size); + if (!sock->virt_base_addr) { + dev_err(sock->dev, "Failed to ioremap MP1 base address\n"); + return -ENOMEM; + } + + return 0; +} + +/* Parse the ACPI table to read the data */ +static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) +{ + struct hsmp_socket *sock = &plat_dev.sock[sock_ind]; + int ret; + + sock->sock_ind = sock_ind; + sock->dev = dev; + sock->amd_hsmp_rdwr = amd_hsmp_acpi_rdwr; + plat_dev.is_acpi_device = true; + + sema_init(&sock->hsmp_sem, 1); + + /* Read MP1 base address from CRS method */ + ret = hsmp_read_acpi_crs(sock); + if (ret) + return ret; + + /* Read mailbox offsets from DSD table */ + return hsmp_read_acpi_dsd(sock); +} + +int hsmp_create_acpi_sysfs_if(struct device *dev) +{ + struct attribute_group *attr_grp; + u16 sock_ind; + int ret; + + attr_grp = devm_kzalloc(dev, sizeof(struct attribute_group), GFP_KERNEL); + if (!attr_grp) + return -ENOMEM; + + attr_grp->is_bin_visible = hsmp_is_sock_attr_visible; + + ret = hsmp_get_uid(dev, &sock_ind); + if (ret) + return ret; + + ret = hsmp_create_attr_list(attr_grp, dev, sock_ind); + if (ret) + return ret; + + return devm_device_add_group(dev, attr_grp); +} + +int init_acpi(struct device *dev) +{ + u16 sock_ind; + int ret; + + ret = hsmp_get_uid(dev, &sock_ind); + if (ret) + return ret; + if (sock_ind >= plat_dev.num_sockets) + return -EINVAL; + + ret = hsmp_parse_acpi_table(dev, sock_ind); + if (ret) { + dev_err(dev, "Failed to parse ACPI table\n"); + return ret; + } + + /* Test the hsmp interface */ + ret = hsmp_test(sock_ind, 0xDEADBEEF); + if (ret) { + dev_err(dev, "HSMP test message failed on Fam:%x model:%x\n", + boot_cpu_data.x86, boot_cpu_data.x86_model); + dev_err(dev, "Is HSMP disabled in BIOS ?\n"); + return ret; + } + + ret = hsmp_cache_proto_ver(sock_ind); + if (ret) { + dev_err(dev, "Failed to read HSMP protocol version\n"); + return ret; + } + + return ret; +} diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index 1b2cd36c437f..6ec4b4431407 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -39,24 +39,8 @@ #define HSMP_WR true #define HSMP_RD false -/* These are the strings specified in ACPI table */ -#define MSG_IDOFF_STR "MsgIdOffset" -#define MSG_ARGOFF_STR "MsgArgOffset" -#define MSG_RESPOFF_STR "MsgRspOffset" - struct hsmp_plat_device plat_dev; -static int amd_hsmp_acpi_rdwr(struct hsmp_socket *sock, u32 offset, - u32 *value, bool write) -{ - if (write) - iowrite32(*value, sock->virt_base_addr + offset); - else - *value = ioread32(sock->virt_base_addr + offset); - - return 0; -} - /* * Send a message to the HSMP port via PCI-e config space registers * or by writing to MMIO space. @@ -306,182 +290,6 @@ static const struct file_operations hsmp_fops = { .compat_ioctl = hsmp_ioctl, }; -/* This is the UUID used for HSMP */ -static const guid_t acpi_hsmp_uuid = GUID_INIT(0xb74d619d, 0x5707, 0x48bd, - 0xa6, 0x9f, 0x4e, 0xa2, - 0x87, 0x1f, 0xc2, 0xf6); - -static inline bool is_acpi_hsmp_uuid(union acpi_object *obj) -{ - if (obj->type == ACPI_TYPE_BUFFER && obj->buffer.length == UUID_SIZE) - return guid_equal((guid_t *)obj->buffer.pointer, &acpi_hsmp_uuid); - - return false; -} - -static inline int hsmp_get_uid(struct device *dev, u16 *sock_ind) -{ - char *uid; - - /* - * UID (ID00, ID01..IDXX) is used for differentiating sockets, - * read it and strip the "ID" part of it and convert the remaining - * bytes to integer. - */ - uid = acpi_device_uid(ACPI_COMPANION(dev)); - - return kstrtou16(uid + 2, 10, sock_ind); -} - -static acpi_status hsmp_resource(struct acpi_resource *res, void *data) -{ - struct hsmp_socket *sock = data; - struct resource r; - - switch (res->type) { - case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: - if (!acpi_dev_resource_memory(res, &r)) - return AE_ERROR; - if (!r.start || r.end < r.start || !(r.flags & IORESOURCE_MEM_WRITEABLE)) - return AE_ERROR; - sock->mbinfo.base_addr = r.start; - sock->mbinfo.size = resource_size(&r); - break; - case ACPI_RESOURCE_TYPE_END_TAG: - break; - default: - return AE_ERROR; - } - - return AE_OK; -} - -static int hsmp_read_acpi_dsd(struct hsmp_socket *sock) -{ - struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object *guid, *mailbox_package; - union acpi_object *dsd; - acpi_status status; - int ret = 0; - int j; - - status = acpi_evaluate_object_typed(ACPI_HANDLE(sock->dev), "_DSD", NULL, - &buf, ACPI_TYPE_PACKAGE); - if (ACPI_FAILURE(status)) { - dev_err(sock->dev, "Failed to read mailbox reg offsets from DSD table, err: %s\n", - acpi_format_exception(status)); - return -ENODEV; - } - - dsd = buf.pointer; - - /* HSMP _DSD property should contain 2 objects. - * 1. guid which is an acpi object of type ACPI_TYPE_BUFFER - * 2. mailbox which is an acpi object of type ACPI_TYPE_PACKAGE - * This mailbox object contains 3 more acpi objects of type - * ACPI_TYPE_PACKAGE for holding msgid, msgresp, msgarg offsets - * these packages inturn contain 2 acpi objects of type - * ACPI_TYPE_STRING and ACPI_TYPE_INTEGER - */ - if (!dsd || dsd->type != ACPI_TYPE_PACKAGE || dsd->package.count != 2) { - ret = -EINVAL; - goto free_buf; - } - - guid = &dsd->package.elements[0]; - mailbox_package = &dsd->package.elements[1]; - if (!is_acpi_hsmp_uuid(guid) || mailbox_package->type != ACPI_TYPE_PACKAGE) { - dev_err(sock->dev, "Invalid hsmp _DSD table data\n"); - ret = -EINVAL; - goto free_buf; - } - - for (j = 0; j < mailbox_package->package.count; j++) { - union acpi_object *msgobj, *msgstr, *msgint; - - msgobj = &mailbox_package->package.elements[j]; - msgstr = &msgobj->package.elements[0]; - msgint = &msgobj->package.elements[1]; - - /* package should have 1 string and 1 integer object */ - if (msgobj->type != ACPI_TYPE_PACKAGE || - msgstr->type != ACPI_TYPE_STRING || - msgint->type != ACPI_TYPE_INTEGER) { - ret = -EINVAL; - goto free_buf; - } - - if (!strncmp(msgstr->string.pointer, MSG_IDOFF_STR, - msgstr->string.length)) { - sock->mbinfo.msg_id_off = msgint->integer.value; - } else if (!strncmp(msgstr->string.pointer, MSG_RESPOFF_STR, - msgstr->string.length)) { - sock->mbinfo.msg_resp_off = msgint->integer.value; - } else if (!strncmp(msgstr->string.pointer, MSG_ARGOFF_STR, - msgstr->string.length)) { - sock->mbinfo.msg_arg_off = msgint->integer.value; - } else { - ret = -ENOENT; - goto free_buf; - } - } - - if (!sock->mbinfo.msg_id_off || !sock->mbinfo.msg_resp_off || - !sock->mbinfo.msg_arg_off) - ret = -EINVAL; - -free_buf: - ACPI_FREE(buf.pointer); - return ret; -} - -static int hsmp_read_acpi_crs(struct hsmp_socket *sock) -{ - acpi_status status; - - status = acpi_walk_resources(ACPI_HANDLE(sock->dev), METHOD_NAME__CRS, - hsmp_resource, sock); - if (ACPI_FAILURE(status)) { - dev_err(sock->dev, "Failed to look up MP1 base address from CRS method, err: %s\n", - acpi_format_exception(status)); - return -EINVAL; - } - if (!sock->mbinfo.base_addr || !sock->mbinfo.size) - return -EINVAL; - - /* The mapped region should be un cached */ - sock->virt_base_addr = devm_ioremap_uc(sock->dev, sock->mbinfo.base_addr, - sock->mbinfo.size); - if (!sock->virt_base_addr) { - dev_err(sock->dev, "Failed to ioremap MP1 base address\n"); - return -ENOMEM; - } - - return 0; -} - -/* Parse the ACPI table to read the data */ -static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) -{ - struct hsmp_socket *sock = &plat_dev.sock[sock_ind]; - int ret; - - sock->sock_ind = sock_ind; - sock->dev = dev; - sock->amd_hsmp_rdwr = amd_hsmp_acpi_rdwr; - plat_dev.is_acpi_device = true; - - sema_init(&sock->hsmp_sem, 1); - - /* Read MP1 base address from CRS method */ - ret = hsmp_read_acpi_crs(sock); - if (ret) - return ret; - - /* Read mailbox offsets from DSD table */ - return hsmp_read_acpi_dsd(sock); -} - ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) @@ -590,29 +398,6 @@ int hsmp_create_attr_list(struct attribute_group *attr_grp, return hsmp_init_metric_tbl_bin_attr(hsmp_bin_attrs, sock_ind); } -static int hsmp_create_acpi_sysfs_if(struct device *dev) -{ - struct attribute_group *attr_grp; - u16 sock_ind; - int ret; - - attr_grp = devm_kzalloc(dev, sizeof(struct attribute_group), GFP_KERNEL); - if (!attr_grp) - return -ENOMEM; - - attr_grp->is_bin_visible = hsmp_is_sock_attr_visible; - - ret = hsmp_get_uid(dev, &sock_ind); - if (ret) - return ret; - - ret = hsmp_create_attr_list(attr_grp, dev, sock_ind); - if (ret) - return ret; - - return devm_device_add_group(dev, attr_grp); -} - int hsmp_cache_proto_ver(u16 sock_ind) { struct hsmp_message msg = { 0 }; @@ -645,41 +430,6 @@ static bool check_acpi_support(struct device *dev) return false; } -static int init_acpi(struct device *dev) -{ - u16 sock_ind; - int ret; - - ret = hsmp_get_uid(dev, &sock_ind); - if (ret) - return ret; - if (sock_ind >= plat_dev.num_sockets) - return -EINVAL; - - ret = hsmp_parse_acpi_table(dev, sock_ind); - if (ret) { - dev_err(dev, "Failed to parse ACPI table\n"); - return ret; - } - - /* Test the hsmp interface */ - ret = hsmp_test(sock_ind, 0xDEADBEEF); - if (ret) { - dev_err(dev, "HSMP test message failed on Fam:%x model:%x\n", - boot_cpu_data.x86, boot_cpu_data.x86_model); - dev_err(dev, "Is HSMP disabled in BIOS ?\n"); - return ret; - } - - ret = hsmp_cache_proto_ver(sock_ind); - if (ret) { - dev_err(dev, "Failed to read HSMP protocol version\n"); - return ret; - } - - return ret; -} - static int hsmp_pltdrv_probe(struct platform_device *pdev) { int ret; diff --git a/drivers/platform/x86/amd/hsmp/hsmp.h b/drivers/platform/x86/amd/hsmp/hsmp.h index d59a9efb4799..f465600cb843 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.h +++ b/drivers/platform/x86/amd/hsmp/hsmp.h @@ -62,6 +62,7 @@ ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count); int hsmp_create_non_acpi_sysfs_if(struct device *dev); +int hsmp_create_acpi_sysfs_if(struct device *dev); int hsmp_cache_proto_ver(u16 sock_ind); umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, struct bin_attribute *battr, int id); @@ -69,4 +70,5 @@ int hsmp_create_attr_list(struct attribute_group *attr_grp, struct device *dev, u16 sock_ind); int hsmp_test(u16 sock_ind, u32 value); int init_platform_device(struct device *dev); +int init_acpi(struct device *dev); #endif /* HSMP_H */ From 8e75dff56e003cdd38643024c4f5f8ba227100c8 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:24 +0000 Subject: [PATCH 23/69] platform/x86/amd/hsmp: Change generic plat_dev name to hsmp_pdev MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit plat_dev is a commonly used variable name, since its made as extern now, change it to more specific name. Also change miscdevice hsmp_device to mdev. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241021111428.2676884-7-suma.hegde@amd.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/acpi.c | 6 +-- drivers/platform/x86/amd/hsmp/hsmp.c | 60 ++++++++++++++-------------- drivers/platform/x86/amd/hsmp/hsmp.h | 4 +- drivers/platform/x86/amd/hsmp/plat.c | 12 +++--- 4 files changed, 41 insertions(+), 41 deletions(-) diff --git a/drivers/platform/x86/amd/hsmp/acpi.c b/drivers/platform/x86/amd/hsmp/acpi.c index 61c072216fb7..6f8e7962266a 100644 --- a/drivers/platform/x86/amd/hsmp/acpi.c +++ b/drivers/platform/x86/amd/hsmp/acpi.c @@ -194,13 +194,13 @@ static int hsmp_read_acpi_crs(struct hsmp_socket *sock) /* Parse the ACPI table to read the data */ static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) { - struct hsmp_socket *sock = &plat_dev.sock[sock_ind]; + struct hsmp_socket *sock = &hsmp_pdev.sock[sock_ind]; int ret; sock->sock_ind = sock_ind; sock->dev = dev; sock->amd_hsmp_rdwr = amd_hsmp_acpi_rdwr; - plat_dev.is_acpi_device = true; + hsmp_pdev.is_acpi_device = true; sema_init(&sock->hsmp_sem, 1); @@ -244,7 +244,7 @@ int init_acpi(struct device *dev) ret = hsmp_get_uid(dev, &sock_ind); if (ret) return ret; - if (sock_ind >= plat_dev.num_sockets) + if (sock_ind >= hsmp_pdev.num_sockets) return -EINVAL; ret = hsmp_parse_acpi_table(dev, sock_ind); diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index 6ec4b4431407..752af944ce9a 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -39,7 +39,7 @@ #define HSMP_WR true #define HSMP_RD false -struct hsmp_plat_device plat_dev; +struct hsmp_plat_device hsmp_pdev; /* * Send a message to the HSMP port via PCI-e config space registers @@ -176,9 +176,9 @@ int hsmp_send_message(struct hsmp_message *msg) if (ret) return ret; - if (!plat_dev.sock || msg->sock_ind >= plat_dev.num_sockets) + if (!hsmp_pdev.sock || msg->sock_ind >= hsmp_pdev.num_sockets) return -ENODEV; - sock = &plat_dev.sock[msg->sock_ind]; + sock = &hsmp_pdev.sock[msg->sock_ind]; /* * The time taken by smu operation to complete is between @@ -219,7 +219,7 @@ int hsmp_test(u16 sock_ind, u32 value) /* Check the response value */ if (msg.args[0] != (value + 1)) { - dev_err(plat_dev.sock[sock_ind].dev, + dev_err(hsmp_pdev.sock[sock_ind].dev, "Socket %d test message failed, Expected 0x%08X, received 0x%08X\n", sock_ind, (value + 1), msg.args[0]); return -EBADE; @@ -320,7 +320,7 @@ ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, static int hsmp_get_tbl_dram_base(u16 sock_ind) { - struct hsmp_socket *sock = &plat_dev.sock[sock_ind]; + struct hsmp_socket *sock = &hsmp_pdev.sock[sock_ind]; struct hsmp_message msg = { 0 }; phys_addr_t dram_addr; int ret; @@ -354,7 +354,7 @@ static int hsmp_get_tbl_dram_base(u16 sock_ind) umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, struct bin_attribute *battr, int id) { - if (plat_dev.proto_ver == HSMP_PROTO_VER6) + if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) return battr->attr.mode; else return 0; @@ -362,17 +362,17 @@ umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, static int hsmp_init_metric_tbl_bin_attr(struct bin_attribute **hattrs, u16 sock_ind) { - struct bin_attribute *hattr = &plat_dev.sock[sock_ind].hsmp_attr; + struct bin_attribute *hattr = &hsmp_pdev.sock[sock_ind].hsmp_attr; sysfs_bin_attr_init(hattr); hattr->attr.name = HSMP_METRICS_TABLE_NAME; hattr->attr.mode = 0444; hattr->read = hsmp_metric_tbl_read; hattr->size = sizeof(struct hsmp_metric_table); - hattr->private = &plat_dev.sock[sock_ind]; + hattr->private = &hsmp_pdev.sock[sock_ind]; hattrs[0] = hattr; - if (plat_dev.proto_ver == HSMP_PROTO_VER6) + if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) return hsmp_get_tbl_dram_base(sock_ind); else return 0; @@ -409,7 +409,7 @@ int hsmp_cache_proto_ver(u16 sock_ind) ret = hsmp_send_message(&msg); if (!ret) - plat_dev.proto_ver = msg.args[0]; + hsmp_pdev.proto_ver = msg.args[0]; return ret; } @@ -441,11 +441,11 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev) * Hence allocate memory for all the sockets at once instead of allocating * on each probe. */ - if (!plat_dev.is_probed) { - plat_dev.sock = devm_kcalloc(&pdev->dev, plat_dev.num_sockets, - sizeof(*plat_dev.sock), - GFP_KERNEL); - if (!plat_dev.sock) + if (!hsmp_pdev.is_probed) { + hsmp_pdev.sock = devm_kcalloc(&pdev->dev, hsmp_pdev.num_sockets, + sizeof(*hsmp_pdev.sock), + GFP_KERNEL); + if (!hsmp_pdev.sock) return -ENOMEM; } if (check_acpi_support(&pdev->dev)) { @@ -468,19 +468,19 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); } - if (!plat_dev.is_probed) { - plat_dev.hsmp_device.name = HSMP_CDEV_NAME; - plat_dev.hsmp_device.minor = MISC_DYNAMIC_MINOR; - plat_dev.hsmp_device.fops = &hsmp_fops; - plat_dev.hsmp_device.parent = &pdev->dev; - plat_dev.hsmp_device.nodename = HSMP_DEVNODE_NAME; - plat_dev.hsmp_device.mode = 0644; + if (!hsmp_pdev.is_probed) { + hsmp_pdev.mdev.name = HSMP_CDEV_NAME; + hsmp_pdev.mdev.minor = MISC_DYNAMIC_MINOR; + hsmp_pdev.mdev.fops = &hsmp_fops; + hsmp_pdev.mdev.parent = &pdev->dev; + hsmp_pdev.mdev.nodename = HSMP_DEVNODE_NAME; + hsmp_pdev.mdev.mode = 0644; - ret = misc_register(&plat_dev.hsmp_device); + ret = misc_register(&hsmp_pdev.mdev); if (ret) return ret; - plat_dev.is_probed = true; + hsmp_pdev.is_probed = true; } return 0; @@ -493,9 +493,9 @@ static void hsmp_pltdrv_remove(struct platform_device *pdev) * We register only one misc_device even on multi socket system. * So, deregister should happen only once. */ - if (plat_dev.is_probed) { - misc_deregister(&plat_dev.hsmp_device); - plat_dev.is_probed = false; + if (hsmp_pdev.is_probed) { + misc_deregister(&hsmp_pdev.mdev); + hsmp_pdev.is_probed = false; } } @@ -567,15 +567,15 @@ static int __init hsmp_plt_init(void) * amd_nb_num() returns number of SMN/DF interfaces present in the system * if we have N SMN/DF interfaces that ideally means N sockets */ - plat_dev.num_sockets = amd_nb_num(); - if (plat_dev.num_sockets == 0 || plat_dev.num_sockets > MAX_AMD_SOCKETS) + hsmp_pdev.num_sockets = amd_nb_num(); + if (hsmp_pdev.num_sockets == 0 || hsmp_pdev.num_sockets > MAX_AMD_SOCKETS) return ret; ret = platform_driver_register(&amd_hsmp_driver); if (ret) return ret; - if (!plat_dev.is_acpi_device) { + if (!hsmp_pdev.is_acpi_device) { if (legacy_hsmp_support()) { /* Not ACPI device, but supports HSMP, register a plat_dev */ ret = hsmp_plat_dev_register(); diff --git a/drivers/platform/x86/amd/hsmp/hsmp.h b/drivers/platform/x86/amd/hsmp/hsmp.h index f465600cb843..9c5b9c263fc1 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.h +++ b/drivers/platform/x86/amd/hsmp/hsmp.h @@ -48,7 +48,7 @@ struct hsmp_socket { }; struct hsmp_plat_device { - struct miscdevice hsmp_device; + struct miscdevice mdev; struct hsmp_socket *sock; u32 proto_ver; u16 num_sockets; @@ -56,7 +56,7 @@ struct hsmp_plat_device { bool is_probed; }; -extern struct hsmp_plat_device plat_dev; +extern struct hsmp_plat_device hsmp_pdev; ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, diff --git a/drivers/platform/x86/amd/hsmp/plat.c b/drivers/platform/x86/amd/hsmp/plat.c index 85a104859acd..e18cf82478a0 100644 --- a/drivers/platform/x86/amd/hsmp/plat.c +++ b/drivers/platform/x86/amd/hsmp/plat.c @@ -56,21 +56,21 @@ int hsmp_create_non_acpi_sysfs_if(struct device *dev) struct attribute_group *attr_grp; u16 i; - hsmp_attr_grps = devm_kcalloc(dev, plat_dev.num_sockets + 1, + hsmp_attr_grps = devm_kcalloc(dev, hsmp_pdev.num_sockets + 1, sizeof(*hsmp_attr_grps), GFP_KERNEL); if (!hsmp_attr_grps) return -ENOMEM; /* Create a sysfs directory for each socket */ - for (i = 0; i < plat_dev.num_sockets; i++) { + for (i = 0; i < hsmp_pdev.num_sockets; i++) { attr_grp = devm_kzalloc(dev, sizeof(struct attribute_group), GFP_KERNEL); if (!attr_grp) return -ENOMEM; - snprintf(plat_dev.sock[i].name, HSMP_ATTR_GRP_NAME_SIZE, "socket%u", (u8)i); - attr_grp->name = plat_dev.sock[i].name; + snprintf(hsmp_pdev.sock[i].name, HSMP_ATTR_GRP_NAME_SIZE, "socket%u", (u8)i); + attr_grp->name = hsmp_pdev.sock[i].name; attr_grp->is_bin_visible = hsmp_is_sock_attr_visible; hsmp_attr_grps[i] = attr_grp; @@ -93,10 +93,10 @@ int init_platform_device(struct device *dev) struct hsmp_socket *sock; int ret, i; - for (i = 0; i < plat_dev.num_sockets; i++) { + for (i = 0; i < hsmp_pdev.num_sockets; i++) { if (!node_to_amd_nb(i)) return -ENODEV; - sock = &plat_dev.sock[i]; + sock = &hsmp_pdev.sock[i]; sock->root = node_to_amd_nb(i)->root; sock->sock_ind = i; sock->dev = dev; From 7d3135d16356f1f0adda7e76d4a747f618263db4 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:25 +0000 Subject: [PATCH 24/69] platform/x86/amd/hsmp: Create separate ACPI, plat and common drivers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Separate the probes for HSMP ACPI and platform device drivers. Provide a Kconfig option to choose between ACPI or the platform device based driver. The common code which is the core part of the HSMP driver maintained at hsmp.c is guarded by AMD_HSMP config and is selected by these two driver configs. This will be built into separate hsmp_common.ko module and acpi as hsmp_acpi and plat as amd_hsmp respectively. Also add "|| COMPILE_TEST" clause in Kconfig to get build coverage for HSMP. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Link: https://lore.kernel.org/r/20241021111428.2676884-8-suma.hegde@amd.com [ij: Fixed doc to use pre-formatted text for the ACPI dump.] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- Documentation/arch/x86/amd_hsmp.rst | 67 +++++++- drivers/platform/x86/amd/Makefile | 2 +- drivers/platform/x86/amd/hsmp/Kconfig | 40 ++++- drivers/platform/x86/amd/hsmp/Makefile | 8 +- drivers/platform/x86/amd/hsmp/acpi.c | 82 ++++++++- drivers/platform/x86/amd/hsmp/hsmp.c | 220 +++---------------------- drivers/platform/x86/amd/hsmp/hsmp.h | 8 +- drivers/platform/x86/amd/hsmp/plat.c | 138 +++++++++++++++- 8 files changed, 349 insertions(+), 216 deletions(-) diff --git a/Documentation/arch/x86/amd_hsmp.rst b/Documentation/arch/x86/amd_hsmp.rst index 1e499ecf5f4e..2fd917638e42 100644 --- a/Documentation/arch/x86/amd_hsmp.rst +++ b/Documentation/arch/x86/amd_hsmp.rst @@ -4,8 +4,9 @@ AMD HSMP interface ============================================ -Newer Fam19h EPYC server line of processors from AMD support system -management functionality via HSMP (Host System Management Port). +Newer Fam19h(model 0x00-0x1f, 0x30-0x3f, 0x90-0x9f, 0xa0-0xaf), +Fam1Ah(model 0x00-0x1f) EPYC server line of processors from AMD support +system management functionality via HSMP (Host System Management Port). The Host System Management Port (HSMP) is an interface to provide OS-level software with access to system management functions via a @@ -16,14 +17,25 @@ More details on the interface can be found in chapter Eg: https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/programmer-references/55898_B1_pub_0_50.zip -HSMP interface is supported on EPYC server CPU models only. +HSMP interface is supported on EPYC line of server CPUs and MI300A (APU). HSMP device ============================================ -amd_hsmp driver under the drivers/platforms/x86/ creates miscdevice -/dev/hsmp to let user space programs run hsmp mailbox commands. +amd_hsmp driver under drivers/platforms/x86/amd/hsmp/ has separate driver files +for ACPI object based probing, platform device based probing and for the common +code for these two drivers. + +Kconfig option CONFIG_AMD_HSMP_PLAT compiles plat.c and creates amd_hsmp.ko. +Kconfig option CONFIG_AMD_HSMP_ACPI compiles acpi.c and creates hsmp_acpi.ko. +Selecting any of these two configs automatically selects CONFIG_AMD_HSMP. This +compiles common code hsmp.c and creates hsmp_common.ko module. + +Both the ACPI and plat drivers create the miscdevice /dev/hsmp to let +user space programs run hsmp mailbox commands. + +The ACPI object format supported by the driver is defined below. $ ls -al /dev/hsmp crw-r--r-- 1 root root 10, 123 Jan 21 21:41 /dev/hsmp @@ -59,6 +71,51 @@ Note: lseek() is not supported as entire metrics table is read. Metrics table definitions will be documented as part of Public PPR. The same is defined in the amd_hsmp.h header. +ACPI device object format +========================= +The ACPI object format expected from the amd_hsmp driver +for socket with ID00 is given below:: + + Device(HSMP) + { + Name(_HID, "AMDI0097") + Name(_UID, "ID00") + Name(HSE0, 0x00000001) + Name(RBF0, ResourceTemplate() + { + Memory32Fixed(ReadWrite, 0xxxxxxx, 0x00100000) + }) + Method(_CRS, 0, NotSerialized) + { + Return(RBF0) + } + Method(_STA, 0, NotSerialized) + { + If(LEqual(HSE0, One)) + { + Return(0x0F) + } + Else + { + Return(Zero) + } + } + Name(_DSD, Package(2) + { + Buffer(0x10) + { + 0x9D, 0x61, 0x4D, 0xB7, 0x07, 0x57, 0xBD, 0x48, + 0xA6, 0x9F, 0x4E, 0xA2, 0x87, 0x1F, 0xC2, 0xF6 + }, + Package(3) + { + Package(2) {"MsgIdOffset", 0x00010934}, + Package(2) {"MsgRspOffset", 0x00010980}, + Package(2) {"MsgArgOffset", 0x000109E0} + } + }) + } + An example ========== diff --git a/drivers/platform/x86/amd/Makefile b/drivers/platform/x86/amd/Makefile index 96ec24c8701b..f0b2fe81c685 100644 --- a/drivers/platform/x86/amd/Makefile +++ b/drivers/platform/x86/amd/Makefile @@ -5,6 +5,6 @@ # obj-$(CONFIG_AMD_PMC) += pmc/ -obj-y += hsmp/ +obj-$(CONFIG_AMD_HSMP) += hsmp/ obj-$(CONFIG_AMD_PMF) += pmf/ obj-$(CONFIG_AMD_WBRF) += wbrf.o diff --git a/drivers/platform/x86/amd/hsmp/Kconfig b/drivers/platform/x86/amd/hsmp/Kconfig index b55d4ed9bceb..7d10d4462a45 100644 --- a/drivers/platform/x86/amd/hsmp/Kconfig +++ b/drivers/platform/x86/amd/hsmp/Kconfig @@ -4,14 +4,44 @@ # config AMD_HSMP - tristate "AMD HSMP Driver" - depends on AMD_NB && X86_64 && ACPI - help - The driver provides a way for user space tools to monitor and manage - system management functionality on EPYC server CPUs from AMD. + tristate +menu "AMD HSMP Driver" + depends on AMD_NB || COMPILE_TEST + +config AMD_HSMP_ACPI + tristate "AMD HSMP ACPI device driver" + depends on ACPI + select AMD_HSMP + help Host System Management Port (HSMP) interface is a mailbox interface between the x86 core and the System Management Unit (SMU) firmware. + The driver provides a way for user space tools to monitor and manage + system management functionality on EPYC and MI300A server CPUs + from AMD. + + This option supports ACPI based probing. + You may enable this, if your platform BIOS provides an ACPI object + as described in amd_hsmp.rst document. + + If you choose to compile this driver as a module the module will be + called hsmp_acpi. + +config AMD_HSMP_PLAT + tristate "AMD HSMP platform device driver" + select AMD_HSMP + help + Host System Management Port (HSMP) interface is a mailbox interface + between the x86 core and the System Management Unit (SMU) firmware. + The driver provides a way for user space tools to monitor and manage + system management functionality on EPYC and MI300A server CPUs + from AMD. + + This option supports platform device based probing. + You may enable this, if your platform BIOS does not provide + HSMP ACPI object. If you choose to compile this driver as a module the module will be called amd_hsmp. + +endmenu diff --git a/drivers/platform/x86/amd/hsmp/Makefile b/drivers/platform/x86/amd/hsmp/Makefile index 0cc92865c0a2..3175d8885e87 100644 --- a/drivers/platform/x86/amd/hsmp/Makefile +++ b/drivers/platform/x86/amd/hsmp/Makefile @@ -4,5 +4,9 @@ # AMD HSMP Driver # -obj-$(CONFIG_AMD_HSMP) += amd_hsmp.o -amd_hsmp-objs := hsmp.o plat.o acpi.o +obj-$(CONFIG_AMD_HSMP) += hsmp_common.o +hsmp_common-objs := hsmp.o +obj-$(CONFIG_AMD_HSMP_PLAT) += amd_hsmp.o +amd_hsmp-objs := plat.o +obj-$(CONFIG_AMD_HSMP_ACPI) += hsmp_acpi.o +hsmp_acpi-objs := acpi.o diff --git a/drivers/platform/x86/amd/hsmp/acpi.c b/drivers/platform/x86/amd/hsmp/acpi.c index 6f8e7962266a..098c879798e7 100644 --- a/drivers/platform/x86/amd/hsmp/acpi.c +++ b/drivers/platform/x86/amd/hsmp/acpi.c @@ -9,11 +9,15 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include + #include #include #include #include #include +#include +#include #include #include @@ -21,6 +25,10 @@ #include "hsmp.h" +#define DRIVER_NAME "amd_hsmp" +#define DRIVER_VERSION "2.3" +#define ACPI_HSMP_DEVICE_HID "AMDI0097" + /* These are the strings specified in ACPI table */ #define MSG_IDOFF_STR "MsgIdOffset" #define MSG_ARGOFF_STR "MsgArgOffset" @@ -200,7 +208,6 @@ static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) sock->sock_ind = sock_ind; sock->dev = dev; sock->amd_hsmp_rdwr = amd_hsmp_acpi_rdwr; - hsmp_pdev.is_acpi_device = true; sema_init(&sock->hsmp_sem, 1); @@ -213,7 +220,7 @@ static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) return hsmp_read_acpi_dsd(sock); } -int hsmp_create_acpi_sysfs_if(struct device *dev) +static int hsmp_create_acpi_sysfs_if(struct device *dev) { struct attribute_group *attr_grp; u16 sock_ind; @@ -236,7 +243,7 @@ int hsmp_create_acpi_sysfs_if(struct device *dev) return devm_device_add_group(dev, attr_grp); } -int init_acpi(struct device *dev) +static int init_acpi(struct device *dev) { u16 sock_ind; int ret; @@ -270,3 +277,72 @@ int init_acpi(struct device *dev) return ret; } + +static const struct acpi_device_id amd_hsmp_acpi_ids[] = { + {ACPI_HSMP_DEVICE_HID, 0}, + {} +}; +MODULE_DEVICE_TABLE(acpi, amd_hsmp_acpi_ids); + +static int hsmp_acpi_probe(struct platform_device *pdev) +{ + int ret; + + if (!hsmp_pdev.is_probed) { + hsmp_pdev.num_sockets = amd_nb_num(); + if (hsmp_pdev.num_sockets == 0 || hsmp_pdev.num_sockets > MAX_AMD_SOCKETS) + return -ENODEV; + + hsmp_pdev.sock = devm_kcalloc(&pdev->dev, hsmp_pdev.num_sockets, + sizeof(*hsmp_pdev.sock), + GFP_KERNEL); + if (!hsmp_pdev.sock) + return -ENOMEM; + } + + ret = init_acpi(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "Failed to initialize HSMP interface.\n"); + return ret; + } + + ret = hsmp_create_acpi_sysfs_if(&pdev->dev); + if (ret) + dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); + + if (!hsmp_pdev.is_probed) { + ret = hsmp_misc_register(&pdev->dev); + if (ret) + return ret; + hsmp_pdev.is_probed = true; + } + + return 0; +} + +static void hsmp_acpi_remove(struct platform_device *pdev) +{ + /* + * We register only one misc_device even on multi-socket system. + * So, deregister should happen only once. + */ + if (hsmp_pdev.is_probed) { + hsmp_misc_deregister(); + hsmp_pdev.is_probed = false; + } +} + +static struct platform_driver amd_hsmp_driver = { + .probe = hsmp_acpi_probe, + .remove = hsmp_acpi_remove, + .driver = { + .name = DRIVER_NAME, + .acpi_match_table = amd_hsmp_acpi_ids, + }, +}; + +module_platform_driver(amd_hsmp_driver); + +MODULE_DESCRIPTION("AMD HSMP Platform Interface Driver"); +MODULE_VERSION(DRIVER_VERSION); +MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index 752af944ce9a..4fa0850c7824 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -15,17 +15,11 @@ #include #include #include -#include -#include #include #include #include "hsmp.h" -#define DRIVER_NAME "amd_hsmp" -#define DRIVER_VERSION "2.2" -#define ACPI_HSMP_DEVICE_HID "AMDI0097" - /* HSMP Status / Error codes */ #define HSMP_STATUS_NOT_READY 0x00 #define HSMP_STATUS_OK 0x01 @@ -39,7 +33,10 @@ #define HSMP_WR true #define HSMP_RD false +#define DRIVER_VERSION "2.3" + struct hsmp_plat_device hsmp_pdev; +EXPORT_SYMBOL_GPL(hsmp_pdev); /* * Send a message to the HSMP port via PCI-e config space registers @@ -227,8 +224,9 @@ int hsmp_test(u16 sock_ind, u32 value) return ret; } +EXPORT_SYMBOL_GPL(hsmp_test); -static long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) +long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) { int __user *arguser = (int __user *)arg; struct hsmp_message msg = { 0 }; @@ -284,12 +282,6 @@ static long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) return 0; } -static const struct file_operations hsmp_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = hsmp_ioctl, - .compat_ioctl = hsmp_ioctl, -}; - ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) @@ -317,6 +309,7 @@ ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, return bin_attr->size; } +EXPORT_SYMBOL_GPL(hsmp_metric_tbl_read); static int hsmp_get_tbl_dram_base(u16 sock_ind) { @@ -359,6 +352,7 @@ umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, else return 0; } +EXPORT_SYMBOL_GPL(hsmp_is_sock_attr_visible); static int hsmp_init_metric_tbl_bin_attr(struct bin_attribute **hattrs, u16 sock_ind) { @@ -397,6 +391,7 @@ int hsmp_create_attr_list(struct attribute_group *attr_grp, return hsmp_init_metric_tbl_bin_attr(hsmp_bin_attrs, sock_ind); } +EXPORT_SYMBOL_GPL(hsmp_create_attr_list); int hsmp_cache_proto_ver(u16 sock_ind) { @@ -413,194 +408,33 @@ int hsmp_cache_proto_ver(u16 sock_ind) return ret; } +EXPORT_SYMBOL_GPL(hsmp_cache_proto_ver); -static const struct acpi_device_id amd_hsmp_acpi_ids[] = { - {ACPI_HSMP_DEVICE_HID, 0}, - {} -}; -MODULE_DEVICE_TABLE(acpi, amd_hsmp_acpi_ids); - -static bool check_acpi_support(struct device *dev) -{ - struct acpi_device *adev = ACPI_COMPANION(dev); - - if (adev && !acpi_match_device_ids(adev, amd_hsmp_acpi_ids)) - return true; - - return false; -} - -static int hsmp_pltdrv_probe(struct platform_device *pdev) -{ - int ret; - - /* - * On ACPI supported BIOS, there is an ACPI HSMP device added for - * each socket, so the per socket probing, but the memory allocated for - * sockets should be contiguous to access it as an array, - * Hence allocate memory for all the sockets at once instead of allocating - * on each probe. - */ - if (!hsmp_pdev.is_probed) { - hsmp_pdev.sock = devm_kcalloc(&pdev->dev, hsmp_pdev.num_sockets, - sizeof(*hsmp_pdev.sock), - GFP_KERNEL); - if (!hsmp_pdev.sock) - return -ENOMEM; - } - if (check_acpi_support(&pdev->dev)) { - ret = init_acpi(&pdev->dev); - if (ret) { - dev_err(&pdev->dev, "Failed to init HSMP mailbox\n"); - return ret; - } - ret = hsmp_create_acpi_sysfs_if(&pdev->dev); - if (ret) - dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); - } else { - ret = init_platform_device(&pdev->dev); - if (ret) { - dev_err(&pdev->dev, "Failed to init HSMP mailbox\n"); - return ret; - } - ret = hsmp_create_non_acpi_sysfs_if(&pdev->dev); - if (ret) - dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); - } - - if (!hsmp_pdev.is_probed) { - hsmp_pdev.mdev.name = HSMP_CDEV_NAME; - hsmp_pdev.mdev.minor = MISC_DYNAMIC_MINOR; - hsmp_pdev.mdev.fops = &hsmp_fops; - hsmp_pdev.mdev.parent = &pdev->dev; - hsmp_pdev.mdev.nodename = HSMP_DEVNODE_NAME; - hsmp_pdev.mdev.mode = 0644; - - ret = misc_register(&hsmp_pdev.mdev); - if (ret) - return ret; - - hsmp_pdev.is_probed = true; - } - - return 0; - -} - -static void hsmp_pltdrv_remove(struct platform_device *pdev) -{ - /* - * We register only one misc_device even on multi socket system. - * So, deregister should happen only once. - */ - if (hsmp_pdev.is_probed) { - misc_deregister(&hsmp_pdev.mdev); - hsmp_pdev.is_probed = false; - } -} - -static struct platform_driver amd_hsmp_driver = { - .probe = hsmp_pltdrv_probe, - .remove = hsmp_pltdrv_remove, - .driver = { - .name = DRIVER_NAME, - .acpi_match_table = amd_hsmp_acpi_ids, - }, +static const struct file_operations hsmp_fops = { + .owner = THIS_MODULE, + .unlocked_ioctl = hsmp_ioctl, + .compat_ioctl = hsmp_ioctl, }; -static struct platform_device *amd_hsmp_platdev; - -static int hsmp_plat_dev_register(void) +int hsmp_misc_register(struct device *dev) { - int ret; + hsmp_pdev.mdev.name = HSMP_CDEV_NAME; + hsmp_pdev.mdev.minor = MISC_DYNAMIC_MINOR; + hsmp_pdev.mdev.fops = &hsmp_fops; + hsmp_pdev.mdev.parent = dev; + hsmp_pdev.mdev.nodename = HSMP_DEVNODE_NAME; + hsmp_pdev.mdev.mode = 0644; - amd_hsmp_platdev = platform_device_alloc(DRIVER_NAME, PLATFORM_DEVID_NONE); - if (!amd_hsmp_platdev) - return -ENOMEM; - - ret = platform_device_add(amd_hsmp_platdev); - if (ret) - platform_device_put(amd_hsmp_platdev); - - return ret; + return misc_register(&hsmp_pdev.mdev); } +EXPORT_SYMBOL_GPL(hsmp_misc_register); -/* - * This check is only needed for backward compatibility of previous platforms. - * All new platforms are expected to support ACPI based probing. - */ -static bool legacy_hsmp_support(void) +void hsmp_misc_deregister(void) { - if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) - return false; - - switch (boot_cpu_data.x86) { - case 0x19: - switch (boot_cpu_data.x86_model) { - case 0x00 ... 0x1F: - case 0x30 ... 0x3F: - case 0x90 ... 0x9F: - case 0xA0 ... 0xAF: - return true; - default: - return false; - } - case 0x1A: - switch (boot_cpu_data.x86_model) { - case 0x00 ... 0x1F: - return true; - default: - return false; - } - default: - return false; - } - - return false; + misc_deregister(&hsmp_pdev.mdev); } +EXPORT_SYMBOL_GPL(hsmp_misc_deregister); -static int __init hsmp_plt_init(void) -{ - int ret = -ENODEV; - - /* - * amd_nb_num() returns number of SMN/DF interfaces present in the system - * if we have N SMN/DF interfaces that ideally means N sockets - */ - hsmp_pdev.num_sockets = amd_nb_num(); - if (hsmp_pdev.num_sockets == 0 || hsmp_pdev.num_sockets > MAX_AMD_SOCKETS) - return ret; - - ret = platform_driver_register(&amd_hsmp_driver); - if (ret) - return ret; - - if (!hsmp_pdev.is_acpi_device) { - if (legacy_hsmp_support()) { - /* Not ACPI device, but supports HSMP, register a plat_dev */ - ret = hsmp_plat_dev_register(); - } else { - /* Not ACPI, Does not support HSMP */ - pr_info("HSMP is not supported on Family:%x model:%x\n", - boot_cpu_data.x86, boot_cpu_data.x86_model); - ret = -ENODEV; - } - if (ret) - platform_driver_unregister(&amd_hsmp_driver); - } - - return ret; -} - -static void __exit hsmp_plt_exit(void) -{ - platform_device_unregister(amd_hsmp_platdev); - platform_driver_unregister(&amd_hsmp_driver); -} - -device_initcall(hsmp_plt_init); -module_exit(hsmp_plt_exit); - -MODULE_DESCRIPTION("AMD HSMP Platform Interface Driver"); +MODULE_DESCRIPTION("AMD HSMP Common driver"); MODULE_VERSION(DRIVER_VERSION); -MODULE_LICENSE("GPL v2"); +MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/amd/hsmp/hsmp.h b/drivers/platform/x86/amd/hsmp/hsmp.h index 9c5b9c263fc1..9ab50bc74676 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.h +++ b/drivers/platform/x86/amd/hsmp/hsmp.h @@ -52,7 +52,6 @@ struct hsmp_plat_device { struct hsmp_socket *sock; u32 proto_ver; u16 num_sockets; - bool is_acpi_device; bool is_probed; }; @@ -61,14 +60,13 @@ extern struct hsmp_plat_device hsmp_pdev; ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count); -int hsmp_create_non_acpi_sysfs_if(struct device *dev); -int hsmp_create_acpi_sysfs_if(struct device *dev); int hsmp_cache_proto_ver(u16 sock_ind); umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, struct bin_attribute *battr, int id); int hsmp_create_attr_list(struct attribute_group *attr_grp, struct device *dev, u16 sock_ind); int hsmp_test(u16 sock_ind, u32 value); -int init_platform_device(struct device *dev); -int init_acpi(struct device *dev); +long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); +void hsmp_misc_deregister(void); +int hsmp_misc_register(struct device *dev); #endif /* HSMP_H */ diff --git a/drivers/platform/x86/amd/hsmp/plat.c b/drivers/platform/x86/amd/hsmp/plat.c index e18cf82478a0..ce6cab23dce8 100644 --- a/drivers/platform/x86/amd/hsmp/plat.c +++ b/drivers/platform/x86/amd/hsmp/plat.c @@ -12,11 +12,16 @@ #include #include +#include #include +#include #include #include "hsmp.h" +#define DRIVER_NAME "amd_hsmp" +#define DRIVER_VERSION "2.3" + /* * To access specific HSMP mailbox register, s/w writes the SMN address of HSMP mailbox * register into the SMN_INDEX register, and reads/writes the SMN_DATA reg. @@ -50,7 +55,7 @@ static int amd_hsmp_pci_rdwr(struct hsmp_socket *sock, u32 offset, return ret; } -int hsmp_create_non_acpi_sysfs_if(struct device *dev) +static int hsmp_create_non_acpi_sysfs_if(struct device *dev) { const struct attribute_group **hsmp_attr_grps; struct attribute_group *attr_grp; @@ -88,7 +93,7 @@ static inline bool is_f1a_m0h(void) return false; } -int init_platform_device(struct device *dev) +static int init_platform_device(struct device *dev) { struct hsmp_socket *sock; int ret, i; @@ -134,3 +139,132 @@ int init_platform_device(struct device *dev) return 0; } + +static int hsmp_pltdrv_probe(struct platform_device *pdev) +{ + int ret; + + hsmp_pdev.sock = devm_kcalloc(&pdev->dev, hsmp_pdev.num_sockets, + sizeof(*hsmp_pdev.sock), + GFP_KERNEL); + if (!hsmp_pdev.sock) + return -ENOMEM; + + ret = init_platform_device(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "Failed to init HSMP mailbox\n"); + return ret; + } + + ret = hsmp_create_non_acpi_sysfs_if(&pdev->dev); + if (ret) + dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); + + return hsmp_misc_register(&pdev->dev); +} + +static void hsmp_pltdrv_remove(struct platform_device *pdev) +{ + hsmp_misc_deregister(); +} + +static struct platform_driver amd_hsmp_driver = { + .probe = hsmp_pltdrv_probe, + .remove = hsmp_pltdrv_remove, + .driver = { + .name = DRIVER_NAME, + }, +}; + +static struct platform_device *amd_hsmp_platdev; + +static int hsmp_plat_dev_register(void) +{ + int ret; + + amd_hsmp_platdev = platform_device_alloc(DRIVER_NAME, PLATFORM_DEVID_NONE); + if (!amd_hsmp_platdev) + return -ENOMEM; + + ret = platform_device_add(amd_hsmp_platdev); + if (ret) + platform_device_put(amd_hsmp_platdev); + + return ret; +} + +/* + * This check is only needed for backward compatibility of previous platforms. + * All new platforms are expected to support ACPI based probing. + */ +static bool legacy_hsmp_support(void) +{ + if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) + return false; + + switch (boot_cpu_data.x86) { + case 0x19: + switch (boot_cpu_data.x86_model) { + case 0x00 ... 0x1F: + case 0x30 ... 0x3F: + case 0x90 ... 0x9F: + case 0xA0 ... 0xAF: + return true; + default: + return false; + } + case 0x1A: + switch (boot_cpu_data.x86_model) { + case 0x00 ... 0x1F: + return true; + default: + return false; + } + default: + return false; + } + + return false; +} + +static int __init hsmp_plt_init(void) +{ + int ret = -ENODEV; + + if (!legacy_hsmp_support()) { + pr_info("HSMP is not supported on Family:%x model:%x\n", + boot_cpu_data.x86, boot_cpu_data.x86_model); + return ret; + } + + /* + * amd_nb_num() returns number of SMN/DF interfaces present in the system + * if we have N SMN/DF interfaces that ideally means N sockets + */ + hsmp_pdev.num_sockets = amd_nb_num(); + if (hsmp_pdev.num_sockets == 0 || hsmp_pdev.num_sockets > MAX_AMD_SOCKETS) + return ret; + + ret = platform_driver_register(&amd_hsmp_driver); + if (ret) + return ret; + + ret = hsmp_plat_dev_register(); + if (ret) + platform_driver_unregister(&amd_hsmp_driver); + + return ret; +} + +static void __exit hsmp_plt_exit(void) +{ + platform_device_unregister(amd_hsmp_platdev); + platform_driver_unregister(&amd_hsmp_driver); +} + +device_initcall(hsmp_plt_init); +module_exit(hsmp_plt_exit); + +MODULE_DESCRIPTION("AMD HSMP Platform Interface Driver"); +MODULE_VERSION(DRIVER_VERSION); +MODULE_LICENSE("GPL"); From 4fc0366ef83f493c63ecf732cbb7ed49edd62072 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:26 +0000 Subject: [PATCH 25/69] platform/x86/amd/hsmp: Use name space while exporting module symbols MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit hsmp_send_message() is exported with AMD_HSMP name space. The other modules who would like to use this symbol, need to import AMD_HSMP namespace using MODULE_IMPORT_NS() to get away with warning. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Link: https://lore.kernel.org/r/20241021111428.2676884-9-suma.hegde@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/acpi.c | 1 + drivers/platform/x86/amd/hsmp/hsmp.c | 18 +++++++++--------- drivers/platform/x86/amd/hsmp/plat.c | 1 + 3 files changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/platform/x86/amd/hsmp/acpi.c b/drivers/platform/x86/amd/hsmp/acpi.c index 098c879798e7..06315ecf0b5f 100644 --- a/drivers/platform/x86/amd/hsmp/acpi.c +++ b/drivers/platform/x86/amd/hsmp/acpi.c @@ -343,6 +343,7 @@ static struct platform_driver amd_hsmp_driver = { module_platform_driver(amd_hsmp_driver); +MODULE_IMPORT_NS(AMD_HSMP); MODULE_DESCRIPTION("AMD HSMP Platform Interface Driver"); MODULE_VERSION(DRIVER_VERSION); MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index 4fa0850c7824..6fd08f16933a 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -36,7 +36,7 @@ #define DRIVER_VERSION "2.3" struct hsmp_plat_device hsmp_pdev; -EXPORT_SYMBOL_GPL(hsmp_pdev); +EXPORT_SYMBOL_NS_GPL(hsmp_pdev, AMD_HSMP); /* * Send a message to the HSMP port via PCI-e config space registers @@ -193,7 +193,7 @@ int hsmp_send_message(struct hsmp_message *msg) return ret; } -EXPORT_SYMBOL_GPL(hsmp_send_message); +EXPORT_SYMBOL_NS_GPL(hsmp_send_message, AMD_HSMP); int hsmp_test(u16 sock_ind, u32 value) { @@ -224,7 +224,7 @@ int hsmp_test(u16 sock_ind, u32 value) return ret; } -EXPORT_SYMBOL_GPL(hsmp_test); +EXPORT_SYMBOL_NS_GPL(hsmp_test, AMD_HSMP); long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) { @@ -309,7 +309,7 @@ ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, return bin_attr->size; } -EXPORT_SYMBOL_GPL(hsmp_metric_tbl_read); +EXPORT_SYMBOL_NS_GPL(hsmp_metric_tbl_read, AMD_HSMP); static int hsmp_get_tbl_dram_base(u16 sock_ind) { @@ -352,7 +352,7 @@ umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, else return 0; } -EXPORT_SYMBOL_GPL(hsmp_is_sock_attr_visible); +EXPORT_SYMBOL_NS_GPL(hsmp_is_sock_attr_visible, AMD_HSMP); static int hsmp_init_metric_tbl_bin_attr(struct bin_attribute **hattrs, u16 sock_ind) { @@ -391,7 +391,7 @@ int hsmp_create_attr_list(struct attribute_group *attr_grp, return hsmp_init_metric_tbl_bin_attr(hsmp_bin_attrs, sock_ind); } -EXPORT_SYMBOL_GPL(hsmp_create_attr_list); +EXPORT_SYMBOL_NS_GPL(hsmp_create_attr_list, AMD_HSMP); int hsmp_cache_proto_ver(u16 sock_ind) { @@ -408,7 +408,7 @@ int hsmp_cache_proto_ver(u16 sock_ind) return ret; } -EXPORT_SYMBOL_GPL(hsmp_cache_proto_ver); +EXPORT_SYMBOL_NS_GPL(hsmp_cache_proto_ver, AMD_HSMP); static const struct file_operations hsmp_fops = { .owner = THIS_MODULE, @@ -427,13 +427,13 @@ int hsmp_misc_register(struct device *dev) return misc_register(&hsmp_pdev.mdev); } -EXPORT_SYMBOL_GPL(hsmp_misc_register); +EXPORT_SYMBOL_NS_GPL(hsmp_misc_register, AMD_HSMP); void hsmp_misc_deregister(void) { misc_deregister(&hsmp_pdev.mdev); } -EXPORT_SYMBOL_GPL(hsmp_misc_deregister); +EXPORT_SYMBOL_NS_GPL(hsmp_misc_deregister, AMD_HSMP); MODULE_DESCRIPTION("AMD HSMP Common driver"); MODULE_VERSION(DRIVER_VERSION); diff --git a/drivers/platform/x86/amd/hsmp/plat.c b/drivers/platform/x86/amd/hsmp/plat.c index ce6cab23dce8..a41aa0979da5 100644 --- a/drivers/platform/x86/amd/hsmp/plat.c +++ b/drivers/platform/x86/amd/hsmp/plat.c @@ -265,6 +265,7 @@ static void __exit hsmp_plt_exit(void) device_initcall(hsmp_plt_init); module_exit(hsmp_plt_exit); +MODULE_IMPORT_NS(AMD_HSMP); MODULE_DESCRIPTION("AMD HSMP Platform Interface Driver"); MODULE_VERSION(DRIVER_VERSION); MODULE_LICENSE("GPL"); From c1691730d9ffb8e813018235ad1b9754104cf67b Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:27 +0000 Subject: [PATCH 26/69] platform/x86/amd/hsmp: Use dev_groups in the driver structure MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Move out of device_add_group() variants, instead assign static array of attribute groups to .dev_groups in platform_driver structure. Then use is_visible to enable only the necessary files on the platform. .read() and .is_bin_visibile() have slightly different implemetations on ACPI and non-ACPI system, so move them to respective files. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Link: https://lore.kernel.org/r/20241021111428.2676884-10-suma.hegde@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/acpi.c | 65 ++++++++++----- drivers/platform/x86/amd/hsmp/hsmp.c | 67 ++------------- drivers/platform/x86/amd/hsmp/hsmp.h | 9 +-- drivers/platform/x86/amd/hsmp/plat.c | 117 ++++++++++++++++++++------- 4 files changed, 143 insertions(+), 115 deletions(-) diff --git a/drivers/platform/x86/amd/hsmp/acpi.c b/drivers/platform/x86/amd/hsmp/acpi.c index 06315ecf0b5f..b953959c9adb 100644 --- a/drivers/platform/x86/amd/hsmp/acpi.c +++ b/drivers/platform/x86/amd/hsmp/acpi.c @@ -9,6 +9,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include #include #include @@ -211,6 +212,8 @@ static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) sema_init(&sock->hsmp_sem, 1); + dev_set_drvdata(dev, sock); + /* Read MP1 base address from CRS method */ ret = hsmp_read_acpi_crs(sock); if (ret) @@ -220,27 +223,23 @@ static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) return hsmp_read_acpi_dsd(sock); } -static int hsmp_create_acpi_sysfs_if(struct device *dev) +static ssize_t hsmp_metric_tbl_acpi_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t off, size_t count) { - struct attribute_group *attr_grp; - u16 sock_ind; - int ret; + struct device *dev = container_of(kobj, struct device, kobj); + struct hsmp_socket *sock = dev_get_drvdata(dev); - attr_grp = devm_kzalloc(dev, sizeof(struct attribute_group), GFP_KERNEL); - if (!attr_grp) - return -ENOMEM; + return hsmp_metric_tbl_read(sock, buf, count); +} - attr_grp->is_bin_visible = hsmp_is_sock_attr_visible; +static umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, + struct bin_attribute *battr, int id) +{ + if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) + return battr->attr.mode; - ret = hsmp_get_uid(dev, &sock_ind); - if (ret) - return ret; - - ret = hsmp_create_attr_list(attr_grp, dev, sock_ind); - if (ret) - return ret; - - return devm_device_add_group(dev, attr_grp); + return 0; } static int init_acpi(struct device *dev) @@ -275,9 +274,36 @@ static int init_acpi(struct device *dev) return ret; } + if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) { + ret = hsmp_get_tbl_dram_base(sock_ind); + if (ret) + dev_err(dev, "Failed to init metric table\n"); + } + return ret; } +static struct bin_attribute hsmp_metric_tbl_attr = { + .attr = { .name = HSMP_METRICS_TABLE_NAME, .mode = 0444}, + .read = hsmp_metric_tbl_acpi_read, + .size = sizeof(struct hsmp_metric_table), +}; + +static struct bin_attribute *hsmp_attr_list[] = { + &hsmp_metric_tbl_attr, + NULL +}; + +static struct attribute_group hsmp_attr_grp = { + .bin_attrs = hsmp_attr_list, + .is_bin_visible = hsmp_is_sock_attr_visible, +}; + +static const struct attribute_group *hsmp_groups[] = { + &hsmp_attr_grp, + NULL +}; + static const struct acpi_device_id amd_hsmp_acpi_ids[] = { {ACPI_HSMP_DEVICE_HID, 0}, {} @@ -306,10 +332,6 @@ static int hsmp_acpi_probe(struct platform_device *pdev) return ret; } - ret = hsmp_create_acpi_sysfs_if(&pdev->dev); - if (ret) - dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); - if (!hsmp_pdev.is_probed) { ret = hsmp_misc_register(&pdev->dev); if (ret) @@ -338,6 +360,7 @@ static struct platform_driver amd_hsmp_driver = { .driver = { .name = DRIVER_NAME, .acpi_match_table = amd_hsmp_acpi_ids, + .dev_groups = hsmp_groups, }, }; diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index 6fd08f16933a..7c3fb090684f 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -282,19 +282,16 @@ long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) return 0; } -ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, - loff_t off, size_t count) +ssize_t hsmp_metric_tbl_read(struct hsmp_socket *sock, char *buf, size_t size) { - struct hsmp_socket *sock = bin_attr->private; struct hsmp_message msg = { 0 }; int ret; - if (!sock) + if (!sock || !buf) return -EINVAL; - /* Do not support lseek(), reads entire metric table */ - if (count < bin_attr->size) { + /* Do not support lseek(), also don't allow more than the size of metric table */ + if (size != sizeof(struct hsmp_metric_table)) { dev_err(sock->dev, "Wrong buffer size\n"); return -EINVAL; } @@ -305,13 +302,13 @@ ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, ret = hsmp_send_message(&msg); if (ret) return ret; - memcpy_fromio(buf, sock->metric_tbl_addr, bin_attr->size); + memcpy_fromio(buf, sock->metric_tbl_addr, size); - return bin_attr->size; + return size; } EXPORT_SYMBOL_NS_GPL(hsmp_metric_tbl_read, AMD_HSMP); -static int hsmp_get_tbl_dram_base(u16 sock_ind) +int hsmp_get_tbl_dram_base(u16 sock_ind) { struct hsmp_socket *sock = &hsmp_pdev.sock[sock_ind]; struct hsmp_message msg = { 0 }; @@ -343,55 +340,7 @@ static int hsmp_get_tbl_dram_base(u16 sock_ind) } return 0; } - -umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, - struct bin_attribute *battr, int id) -{ - if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) - return battr->attr.mode; - else - return 0; -} -EXPORT_SYMBOL_NS_GPL(hsmp_is_sock_attr_visible, AMD_HSMP); - -static int hsmp_init_metric_tbl_bin_attr(struct bin_attribute **hattrs, u16 sock_ind) -{ - struct bin_attribute *hattr = &hsmp_pdev.sock[sock_ind].hsmp_attr; - - sysfs_bin_attr_init(hattr); - hattr->attr.name = HSMP_METRICS_TABLE_NAME; - hattr->attr.mode = 0444; - hattr->read = hsmp_metric_tbl_read; - hattr->size = sizeof(struct hsmp_metric_table); - hattr->private = &hsmp_pdev.sock[sock_ind]; - hattrs[0] = hattr; - - if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) - return hsmp_get_tbl_dram_base(sock_ind); - else - return 0; -} - -/* One bin sysfs for metrics table */ -#define NUM_HSMP_ATTRS 1 - -int hsmp_create_attr_list(struct attribute_group *attr_grp, - struct device *dev, u16 sock_ind) -{ - struct bin_attribute **hsmp_bin_attrs; - - /* Null terminated list of attributes */ - hsmp_bin_attrs = devm_kcalloc(dev, NUM_HSMP_ATTRS + 1, - sizeof(*hsmp_bin_attrs), - GFP_KERNEL); - if (!hsmp_bin_attrs) - return -ENOMEM; - - attr_grp->bin_attrs = hsmp_bin_attrs; - - return hsmp_init_metric_tbl_bin_attr(hsmp_bin_attrs, sock_ind); -} -EXPORT_SYMBOL_NS_GPL(hsmp_create_attr_list, AMD_HSMP); +EXPORT_SYMBOL_NS_GPL(hsmp_get_tbl_dram_base, AMD_HSMP); int hsmp_cache_proto_ver(u16 sock_ind) { diff --git a/drivers/platform/x86/amd/hsmp/hsmp.h b/drivers/platform/x86/amd/hsmp/hsmp.h index 9ab50bc74676..9b4ab6a3598c 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.h +++ b/drivers/platform/x86/amd/hsmp/hsmp.h @@ -57,16 +57,11 @@ struct hsmp_plat_device { extern struct hsmp_plat_device hsmp_pdev; -ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, - loff_t off, size_t count); int hsmp_cache_proto_ver(u16 sock_ind); -umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, - struct bin_attribute *battr, int id); -int hsmp_create_attr_list(struct attribute_group *attr_grp, - struct device *dev, u16 sock_ind); int hsmp_test(u16 sock_ind, u32 value); long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); void hsmp_misc_deregister(void); int hsmp_misc_register(struct device *dev); +int hsmp_get_tbl_dram_base(u16 sock_ind); +ssize_t hsmp_metric_tbl_read(struct hsmp_socket *sock, char *buf, size_t size); #endif /* HSMP_H */ diff --git a/drivers/platform/x86/amd/hsmp/plat.c b/drivers/platform/x86/amd/hsmp/plat.c index a41aa0979da5..905607b5cba5 100644 --- a/drivers/platform/x86/amd/hsmp/plat.c +++ b/drivers/platform/x86/amd/hsmp/plat.c @@ -9,6 +9,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include #include #include @@ -55,36 +56,93 @@ static int amd_hsmp_pci_rdwr(struct hsmp_socket *sock, u32 offset, return ret; } -static int hsmp_create_non_acpi_sysfs_if(struct device *dev) +static ssize_t hsmp_metric_tbl_plat_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t off, size_t count) { - const struct attribute_group **hsmp_attr_grps; - struct attribute_group *attr_grp; - u16 i; + struct hsmp_socket *sock; + u16 sock_ind; - hsmp_attr_grps = devm_kcalloc(dev, hsmp_pdev.num_sockets + 1, - sizeof(*hsmp_attr_grps), - GFP_KERNEL); - if (!hsmp_attr_grps) - return -ENOMEM; + sock_ind = (uintptr_t)bin_attr->private; + if (sock_ind >= hsmp_pdev.num_sockets) + return -EINVAL; - /* Create a sysfs directory for each socket */ - for (i = 0; i < hsmp_pdev.num_sockets; i++) { - attr_grp = devm_kzalloc(dev, sizeof(struct attribute_group), - GFP_KERNEL); - if (!attr_grp) - return -ENOMEM; + sock = &hsmp_pdev.sock[sock_ind]; - snprintf(hsmp_pdev.sock[i].name, HSMP_ATTR_GRP_NAME_SIZE, "socket%u", (u8)i); - attr_grp->name = hsmp_pdev.sock[i].name; - attr_grp->is_bin_visible = hsmp_is_sock_attr_visible; - hsmp_attr_grps[i] = attr_grp; - - hsmp_create_attr_list(attr_grp, dev, i); - } - - return device_add_groups(dev, hsmp_attr_grps); + return hsmp_metric_tbl_read(sock, buf, count); } +static umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, + struct bin_attribute *battr, int id) +{ + u16 sock_ind; + + sock_ind = (uintptr_t)battr->private; + + if (id == 0 && sock_ind >= hsmp_pdev.num_sockets) + return SYSFS_GROUP_INVISIBLE; + + if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) + return battr->attr.mode; + + return 0; +} + +/* + * AMD supports maximum of 8 sockets in a system. + * Static array of 8 + 1(for NULL) elements is created below + * to create sysfs groups for sockets. + * is_bin_visible function is used to show / hide the necessary groups. + */ +#define HSMP_BIN_ATTR(index, _list) \ +static struct bin_attribute attr##index = { \ + .attr = { .name = HSMP_METRICS_TABLE_NAME, .mode = 0444}, \ + .private = (void *)index, \ + .read = hsmp_metric_tbl_plat_read, \ + .size = sizeof(struct hsmp_metric_table), \ +}; \ +static struct bin_attribute _list[] = { \ + &attr##index, \ + NULL \ +} + +HSMP_BIN_ATTR(0, *sock0_attr_list); +HSMP_BIN_ATTR(1, *sock1_attr_list); +HSMP_BIN_ATTR(2, *sock2_attr_list); +HSMP_BIN_ATTR(3, *sock3_attr_list); +HSMP_BIN_ATTR(4, *sock4_attr_list); +HSMP_BIN_ATTR(5, *sock5_attr_list); +HSMP_BIN_ATTR(6, *sock6_attr_list); +HSMP_BIN_ATTR(7, *sock7_attr_list); + +#define HSMP_BIN_ATTR_GRP(index, _list, _name) \ +static struct attribute_group sock##index##_attr_grp = { \ + .bin_attrs = _list, \ + .is_bin_visible = hsmp_is_sock_attr_visible, \ + .name = #_name, \ +} + +HSMP_BIN_ATTR_GRP(0, sock0_attr_list, socket0); +HSMP_BIN_ATTR_GRP(1, sock1_attr_list, socket1); +HSMP_BIN_ATTR_GRP(2, sock2_attr_list, socket2); +HSMP_BIN_ATTR_GRP(3, sock3_attr_list, socket3); +HSMP_BIN_ATTR_GRP(4, sock4_attr_list, socket4); +HSMP_BIN_ATTR_GRP(5, sock5_attr_list, socket5); +HSMP_BIN_ATTR_GRP(6, sock6_attr_list, socket6); +HSMP_BIN_ATTR_GRP(7, sock7_attr_list, socket7); + +static const struct attribute_group *hsmp_groups[] = { + &sock0_attr_grp, + &sock1_attr_grp, + &sock2_attr_grp, + &sock3_attr_grp, + &sock4_attr_grp, + &sock5_attr_grp, + &sock6_attr_grp, + &sock7_attr_grp, + NULL +}; + static inline bool is_f1a_m0h(void) { if (boot_cpu_data.x86 == 0x1A && boot_cpu_data.x86_model <= 0x0F) @@ -135,6 +193,12 @@ static int init_platform_device(struct device *dev) dev_err(dev, "Failed to read HSMP protocol version\n"); return ret; } + + if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) { + ret = hsmp_get_tbl_dram_base(i); + if (ret) + dev_err(dev, "Failed to init metric table\n"); + } } return 0; @@ -156,10 +220,6 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev) return ret; } - ret = hsmp_create_non_acpi_sysfs_if(&pdev->dev); - if (ret) - dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n"); - return hsmp_misc_register(&pdev->dev); } @@ -173,6 +233,7 @@ static struct platform_driver amd_hsmp_driver = { .remove = hsmp_pltdrv_remove, .driver = { .name = DRIVER_NAME, + .dev_groups = hsmp_groups, }, }; From 1349dd7dc21c63c9bad0e91fd1bf5f1ada34b0e2 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Mon, 21 Oct 2024 11:14:28 +0000 Subject: [PATCH 27/69] platform/x86/amd/hsmp: Make hsmp_pdev static instead of global MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of making hsmp_pdev global and exporting this symbol from hsmp.c, make it static and create a wrapper function get_hsmp_pdev() to access hsmp_pdev from plat.c and acpi.c. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Link: https://lore.kernel.org/r/20241021111428.2676884-11-suma.hegde@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/acpi.c | 36 ++++++++++++++++------------ drivers/platform/x86/amd/hsmp/hsmp.c | 9 +++++-- drivers/platform/x86/amd/hsmp/hsmp.h | 3 +-- drivers/platform/x86/amd/hsmp/plat.c | 32 +++++++++++++++---------- 4 files changed, 48 insertions(+), 32 deletions(-) diff --git a/drivers/platform/x86/amd/hsmp/acpi.c b/drivers/platform/x86/amd/hsmp/acpi.c index b953959c9adb..4aa4d66f491a 100644 --- a/drivers/platform/x86/amd/hsmp/acpi.c +++ b/drivers/platform/x86/amd/hsmp/acpi.c @@ -35,6 +35,8 @@ #define MSG_ARGOFF_STR "MsgArgOffset" #define MSG_RESPOFF_STR "MsgRspOffset" +static struct hsmp_plat_device *hsmp_pdev; + static int amd_hsmp_acpi_rdwr(struct hsmp_socket *sock, u32 offset, u32 *value, bool write) { @@ -203,7 +205,7 @@ static int hsmp_read_acpi_crs(struct hsmp_socket *sock) /* Parse the ACPI table to read the data */ static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind) { - struct hsmp_socket *sock = &hsmp_pdev.sock[sock_ind]; + struct hsmp_socket *sock = &hsmp_pdev->sock[sock_ind]; int ret; sock->sock_ind = sock_ind; @@ -236,7 +238,7 @@ static ssize_t hsmp_metric_tbl_acpi_read(struct file *filp, struct kobject *kobj static umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, struct bin_attribute *battr, int id) { - if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) + if (hsmp_pdev->proto_ver == HSMP_PROTO_VER6) return battr->attr.mode; return 0; @@ -250,7 +252,7 @@ static int init_acpi(struct device *dev) ret = hsmp_get_uid(dev, &sock_ind); if (ret) return ret; - if (sock_ind >= hsmp_pdev.num_sockets) + if (sock_ind >= hsmp_pdev->num_sockets) return -EINVAL; ret = hsmp_parse_acpi_table(dev, sock_ind); @@ -274,7 +276,7 @@ static int init_acpi(struct device *dev) return ret; } - if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) { + if (hsmp_pdev->proto_ver == HSMP_PROTO_VER6) { ret = hsmp_get_tbl_dram_base(sock_ind); if (ret) dev_err(dev, "Failed to init metric table\n"); @@ -314,15 +316,19 @@ static int hsmp_acpi_probe(struct platform_device *pdev) { int ret; - if (!hsmp_pdev.is_probed) { - hsmp_pdev.num_sockets = amd_nb_num(); - if (hsmp_pdev.num_sockets == 0 || hsmp_pdev.num_sockets > MAX_AMD_SOCKETS) + hsmp_pdev = get_hsmp_pdev(); + if (!hsmp_pdev) + return -ENOMEM; + + if (!hsmp_pdev->is_probed) { + hsmp_pdev->num_sockets = amd_nb_num(); + if (hsmp_pdev->num_sockets == 0 || hsmp_pdev->num_sockets > MAX_AMD_SOCKETS) return -ENODEV; - hsmp_pdev.sock = devm_kcalloc(&pdev->dev, hsmp_pdev.num_sockets, - sizeof(*hsmp_pdev.sock), - GFP_KERNEL); - if (!hsmp_pdev.sock) + hsmp_pdev->sock = devm_kcalloc(&pdev->dev, hsmp_pdev->num_sockets, + sizeof(*hsmp_pdev->sock), + GFP_KERNEL); + if (!hsmp_pdev->sock) return -ENOMEM; } @@ -332,11 +338,11 @@ static int hsmp_acpi_probe(struct platform_device *pdev) return ret; } - if (!hsmp_pdev.is_probed) { + if (!hsmp_pdev->is_probed) { ret = hsmp_misc_register(&pdev->dev); if (ret) return ret; - hsmp_pdev.is_probed = true; + hsmp_pdev->is_probed = true; } return 0; @@ -348,9 +354,9 @@ static void hsmp_acpi_remove(struct platform_device *pdev) * We register only one misc_device even on multi-socket system. * So, deregister should happen only once. */ - if (hsmp_pdev.is_probed) { + if (hsmp_pdev->is_probed) { hsmp_misc_deregister(); - hsmp_pdev.is_probed = false; + hsmp_pdev->is_probed = false; } } diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index 7c3fb090684f..82d8ba2e1204 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -35,8 +35,7 @@ #define DRIVER_VERSION "2.3" -struct hsmp_plat_device hsmp_pdev; -EXPORT_SYMBOL_NS_GPL(hsmp_pdev, AMD_HSMP); +static struct hsmp_plat_device hsmp_pdev; /* * Send a message to the HSMP port via PCI-e config space registers @@ -384,6 +383,12 @@ void hsmp_misc_deregister(void) } EXPORT_SYMBOL_NS_GPL(hsmp_misc_deregister, AMD_HSMP); +struct hsmp_plat_device *get_hsmp_pdev(void) +{ + return &hsmp_pdev; +} +EXPORT_SYMBOL_NS_GPL(get_hsmp_pdev, AMD_HSMP); + MODULE_DESCRIPTION("AMD HSMP Common driver"); MODULE_VERSION(DRIVER_VERSION); MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/amd/hsmp/hsmp.h b/drivers/platform/x86/amd/hsmp/hsmp.h index 9b4ab6a3598c..e852f0a947e4 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.h +++ b/drivers/platform/x86/amd/hsmp/hsmp.h @@ -55,8 +55,6 @@ struct hsmp_plat_device { bool is_probed; }; -extern struct hsmp_plat_device hsmp_pdev; - int hsmp_cache_proto_ver(u16 sock_ind); int hsmp_test(u16 sock_ind, u32 value); long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg); @@ -64,4 +62,5 @@ void hsmp_misc_deregister(void); int hsmp_misc_register(struct device *dev); int hsmp_get_tbl_dram_base(u16 sock_ind); ssize_t hsmp_metric_tbl_read(struct hsmp_socket *sock, char *buf, size_t size); +struct hsmp_plat_device *get_hsmp_pdev(void); #endif /* HSMP_H */ diff --git a/drivers/platform/x86/amd/hsmp/plat.c b/drivers/platform/x86/amd/hsmp/plat.c index 905607b5cba5..f8e74c0392ba 100644 --- a/drivers/platform/x86/amd/hsmp/plat.c +++ b/drivers/platform/x86/amd/hsmp/plat.c @@ -37,6 +37,8 @@ #define HSMP_INDEX_REG 0xc4 #define HSMP_DATA_REG 0xc8 +static struct hsmp_plat_device *hsmp_pdev; + static int amd_hsmp_pci_rdwr(struct hsmp_socket *sock, u32 offset, u32 *value, bool write) { @@ -64,10 +66,10 @@ static ssize_t hsmp_metric_tbl_plat_read(struct file *filp, struct kobject *kobj u16 sock_ind; sock_ind = (uintptr_t)bin_attr->private; - if (sock_ind >= hsmp_pdev.num_sockets) + if (sock_ind >= hsmp_pdev->num_sockets) return -EINVAL; - sock = &hsmp_pdev.sock[sock_ind]; + sock = &hsmp_pdev->sock[sock_ind]; return hsmp_metric_tbl_read(sock, buf, count); } @@ -79,10 +81,10 @@ static umode_t hsmp_is_sock_attr_visible(struct kobject *kobj, sock_ind = (uintptr_t)battr->private; - if (id == 0 && sock_ind >= hsmp_pdev.num_sockets) + if (id == 0 && sock_ind >= hsmp_pdev->num_sockets) return SYSFS_GROUP_INVISIBLE; - if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) + if (hsmp_pdev->proto_ver == HSMP_PROTO_VER6) return battr->attr.mode; return 0; @@ -156,10 +158,10 @@ static int init_platform_device(struct device *dev) struct hsmp_socket *sock; int ret, i; - for (i = 0; i < hsmp_pdev.num_sockets; i++) { + for (i = 0; i < hsmp_pdev->num_sockets; i++) { if (!node_to_amd_nb(i)) return -ENODEV; - sock = &hsmp_pdev.sock[i]; + sock = &hsmp_pdev->sock[i]; sock->root = node_to_amd_nb(i)->root; sock->sock_ind = i; sock->dev = dev; @@ -194,7 +196,7 @@ static int init_platform_device(struct device *dev) return ret; } - if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6) { + if (hsmp_pdev->proto_ver == HSMP_PROTO_VER6) { ret = hsmp_get_tbl_dram_base(i); if (ret) dev_err(dev, "Failed to init metric table\n"); @@ -208,10 +210,10 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev) { int ret; - hsmp_pdev.sock = devm_kcalloc(&pdev->dev, hsmp_pdev.num_sockets, - sizeof(*hsmp_pdev.sock), - GFP_KERNEL); - if (!hsmp_pdev.sock) + hsmp_pdev->sock = devm_kcalloc(&pdev->dev, hsmp_pdev->num_sockets, + sizeof(*hsmp_pdev->sock), + GFP_KERNEL); + if (!hsmp_pdev->sock) return -ENOMEM; ret = init_platform_device(&pdev->dev); @@ -298,12 +300,16 @@ static int __init hsmp_plt_init(void) return ret; } + hsmp_pdev = get_hsmp_pdev(); + if (!hsmp_pdev) + return -ENOMEM; + /* * amd_nb_num() returns number of SMN/DF interfaces present in the system * if we have N SMN/DF interfaces that ideally means N sockets */ - hsmp_pdev.num_sockets = amd_nb_num(); - if (hsmp_pdev.num_sockets == 0 || hsmp_pdev.num_sockets > MAX_AMD_SOCKETS) + hsmp_pdev->num_sockets = amd_nb_num(); + if (hsmp_pdev->num_sockets == 0 || hsmp_pdev->num_sockets > MAX_AMD_SOCKETS) return ret; ret = platform_driver_register(&amd_hsmp_driver); From a7d30cb75b0b3b243f57fd8dab4992a6a40f917e Mon Sep 17 00:00:00 2001 From: chen zhang Date: Wed, 23 Oct 2024 09:29:05 +0800 Subject: [PATCH 28/69] platform/x86: eeepc-laptop: use sysfs_emit() instead of sprintf() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: chen zhang Link: https://lore.kernel.org/r/20241023012905.15551-1-chenzhang@kylinos.cn Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/eeepc-laptop.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 03319a80e114..f52fbc4924d4 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -285,7 +286,7 @@ static ssize_t show_sys_acpi(struct device *dev, int cm, char *buf) if (value < 0) return -EIO; - return sprintf(buf, "%d\n", value); + return sysfs_emit(buf, "%d\n", value); } #define EEEPC_ACPI_SHOW_FUNC(_name, _cm) \ @@ -361,7 +362,7 @@ static ssize_t cpufv_show(struct device *dev, if (get_cpufv(eeepc, &c)) return -ENODEV; - return sprintf(buf, "%#x\n", (c.num << 8) | c.cur); + return sysfs_emit(buf, "%#x\n", (c.num << 8) | c.cur); } static ssize_t cpufv_store(struct device *dev, @@ -393,7 +394,7 @@ static ssize_t cpufv_disabled_show(struct device *dev, { struct eeepc_laptop *eeepc = dev_get_drvdata(dev); - return sprintf(buf, "%d\n", eeepc->cpufv_disabled); + return sysfs_emit(buf, "%d\n", eeepc->cpufv_disabled); } static ssize_t cpufv_disabled_store(struct device *dev, @@ -1025,7 +1026,7 @@ static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) static ssize_t show_sys_hwmon(int (*get)(void), char *buf) { - return sprintf(buf, "%d\n", get()); + return sysfs_emit(buf, "%d\n", get()); } #define EEEPC_SENSOR_SHOW_FUNC(_name, _get) \ From b39e8ece931a4b4f64cdf9e75fffd6e82828e471 Mon Sep 17 00:00:00 2001 From: Mark Pearson Date: Thu, 24 Oct 2024 15:55:21 -0400 Subject: [PATCH 29/69] platform/x86: think-lmi: improve check if BIOS account security enabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Improve determination of whether authentication account is enabled by checking if either password or certificate is enabled. Renamed valid to pwd_enabled for better readability. Signed-off-by: Mark Pearson Link: https://lore.kernel.org/r/20241024195536.6992-1-mpearson-lenovo@squebb.ca Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/think-lmi.c | 26 +++++++++++++------------- drivers/platform/x86/think-lmi.h | 2 +- 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 4cfb53206cb8..727a9400d406 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -391,7 +391,7 @@ static ssize_t is_enabled_show(struct kobject *kobj, struct kobj_attribute *attr { struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj); - return sysfs_emit(buf, "%d\n", setting->valid); + return sysfs_emit(buf, "%d\n", setting->pwd_enabled || setting->cert_installed); } static struct kobj_attribute auth_is_pass_set = __ATTR_RO(is_enabled); @@ -469,7 +469,7 @@ static ssize_t new_password_store(struct kobject *kobj, if (ret) goto out; - if (tlmi_priv.pwd_admin->valid) { + if (tlmi_priv.pwd_admin->pwd_enabled) { ret = tlmi_opcode_setting("WmiOpcodePasswordAdmin", tlmi_priv.pwd_admin->password); if (ret) @@ -777,7 +777,7 @@ static ssize_t certificate_store(struct kobject *kobj, new_cert, setting->signature); } else { /* This is a fresh install */ - if (!setting->valid || !setting->password[0]) { + if (!setting->pwd_enabled || !setting->password[0]) { kfree(new_cert); return -EACCES; } @@ -1019,7 +1019,7 @@ static ssize_t current_value_store(struct kobject *kobj, * Workstation's require the opcode to be set before changing the * attribute. */ - if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) { + if (tlmi_priv.pwd_admin->pwd_enabled && tlmi_priv.pwd_admin->password[0]) { ret = tlmi_opcode_setting("WmiOpcodePasswordAdmin", tlmi_priv.pwd_admin->password); if (ret) @@ -1042,7 +1042,7 @@ static ssize_t current_value_store(struct kobject *kobj, else ret = tlmi_save_bios_settings(""); } else { /* old non-opcode based authentication method (deprecated) */ - if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) { + if (tlmi_priv.pwd_admin->pwd_enabled && tlmi_priv.pwd_admin->password[0]) { auth_str = kasprintf(GFP_KERNEL, "%s,%s,%s;", tlmi_priv.pwd_admin->password, encoding_options[tlmi_priv.pwd_admin->encoding], @@ -1215,7 +1215,7 @@ static ssize_t save_settings_store(struct kobject *kobj, struct kobj_attribute * if (ret) goto out; } else if (tlmi_priv.opcode_support) { - if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) { + if (tlmi_priv.pwd_admin->pwd_enabled && tlmi_priv.pwd_admin->password[0]) { ret = tlmi_opcode_setting("WmiOpcodePasswordAdmin", tlmi_priv.pwd_admin->password); if (ret) @@ -1223,7 +1223,7 @@ static ssize_t save_settings_store(struct kobject *kobj, struct kobj_attribute * } ret = tlmi_save_bios_settings(""); } else { /* old non-opcode based authentication method (deprecated) */ - if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) { + if (tlmi_priv.pwd_admin->pwd_enabled && tlmi_priv.pwd_admin->password[0]) { auth_str = kasprintf(GFP_KERNEL, "%s,%s,%s;", tlmi_priv.pwd_admin->password, encoding_options[tlmi_priv.pwd_admin->encoding], @@ -1273,7 +1273,7 @@ static ssize_t debug_cmd_store(struct kobject *kobj, struct kobj_attribute *attr if (!new_setting) return -ENOMEM; - if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) { + if (tlmi_priv.pwd_admin->pwd_enabled && tlmi_priv.pwd_admin->password[0]) { auth_str = kasprintf(GFP_KERNEL, "%s,%s,%s;", tlmi_priv.pwd_admin->password, encoding_options[tlmi_priv.pwd_admin->encoding], @@ -1637,14 +1637,14 @@ static int tlmi_analyze(void) goto fail_clear_attr; if (tlmi_priv.pwdcfg.core.password_state & TLMI_PAP_PWD) - tlmi_priv.pwd_admin->valid = true; + tlmi_priv.pwd_admin->pwd_enabled = true; tlmi_priv.pwd_power = tlmi_create_auth("pop", "power-on"); if (!tlmi_priv.pwd_power) goto fail_clear_attr; if (tlmi_priv.pwdcfg.core.password_state & TLMI_POP_PWD) - tlmi_priv.pwd_power->valid = true; + tlmi_priv.pwd_power->pwd_enabled = true; if (tlmi_priv.opcode_support) { tlmi_priv.pwd_system = tlmi_create_auth("smp", "system"); @@ -1652,7 +1652,7 @@ static int tlmi_analyze(void) goto fail_clear_attr; if (tlmi_priv.pwdcfg.core.password_state & TLMI_SMP_PWD) - tlmi_priv.pwd_system->valid = true; + tlmi_priv.pwd_system->pwd_enabled = true; tlmi_priv.pwd_hdd = tlmi_create_auth("hdd", "hdd"); if (!tlmi_priv.pwd_hdd) @@ -1670,7 +1670,7 @@ static int tlmi_analyze(void) /* Check if PWD is configured and set index to first drive found */ if (tlmi_priv.pwdcfg.ext.hdd_user_password || tlmi_priv.pwdcfg.ext.hdd_master_password) { - tlmi_priv.pwd_hdd->valid = true; + tlmi_priv.pwd_hdd->pwd_enabled = true; if (tlmi_priv.pwdcfg.ext.hdd_master_password) tlmi_priv.pwd_hdd->index = ffs(tlmi_priv.pwdcfg.ext.hdd_master_password) - 1; @@ -1680,7 +1680,7 @@ static int tlmi_analyze(void) } if (tlmi_priv.pwdcfg.ext.nvme_user_password || tlmi_priv.pwdcfg.ext.nvme_master_password) { - tlmi_priv.pwd_nvme->valid = true; + tlmi_priv.pwd_nvme->pwd_enabled = true; if (tlmi_priv.pwdcfg.ext.nvme_master_password) tlmi_priv.pwd_nvme->index = ffs(tlmi_priv.pwdcfg.ext.nvme_master_password) - 1; diff --git a/drivers/platform/x86/think-lmi.h b/drivers/platform/x86/think-lmi.h index e1975ffebeb4..4728f40143a3 100644 --- a/drivers/platform/x86/think-lmi.h +++ b/drivers/platform/x86/think-lmi.h @@ -65,7 +65,7 @@ struct tlmi_pwdcfg { /* password setting details */ struct tlmi_pwd_setting { struct kobject kobj; - bool valid; + bool pwd_enabled; char password[TLMI_PWD_BUFSIZE]; const char *pwd_type; const char *role; From c7842e69e4508bef0920030340093f128722964e Mon Sep 17 00:00:00 2001 From: Mark Pearson Date: Thu, 24 Oct 2024 15:55:22 -0400 Subject: [PATCH 30/69] platform/x86: think-lmi: Add certificate as mechanism MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As both password or certificate authentication are available as mechanisms update the documentation to add certificate as an option Update driver to return correct mechanism appropriately. Signed-off-by: Mark Pearson Link: https://lore.kernel.org/r/20241024195536.6992-2-mpearson-lenovo@squebb.ca Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- Documentation/ABI/testing/sysfs-class-firmware-attributes | 2 +- drivers/platform/x86/think-lmi.c | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes index 9c82c7b42ff8..1a8b59f5d6e3 100644 --- a/Documentation/ABI/testing/sysfs-class-firmware-attributes +++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes @@ -193,7 +193,7 @@ Description: mechanism: The means of authentication. This attribute is mandatory. - Only supported type currently is "password". + Supported types are "password" or "certificate". max_password_length: A file that can be read to obtain the diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 727a9400d406..46ab82fb2898 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -524,6 +524,10 @@ static struct kobj_attribute auth_max_pass_length = __ATTR_RO(max_password_lengt static ssize_t mechanism_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { + struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj); + + if (setting->cert_installed) + return sysfs_emit(buf, "certificate\n"); return sysfs_emit(buf, "password\n"); } static struct kobj_attribute auth_mechanism = __ATTR_RO(mechanism); From 7c0bbf1ae6502dfcd0df5d50013e55a71021c819 Mon Sep 17 00:00:00 2001 From: Mark Pearson Date: Thu, 24 Oct 2024 15:55:23 -0400 Subject: [PATCH 31/69] platform/x86: think-lmi: Allow empty admin password MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit SVP = BIOS Supervisor/Admin password SMP = BIOS System password If SMP ACL is enabled in the BIOS then the system allows you to set the SMP without a SVP password configured. Change code to allow this. BIOS will return permissions error if SVP is required. Signed-off-by: Mark Pearson Link: https://lore.kernel.org/r/20241024195536.6992-3-mpearson-lenovo@squebb.ca Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/think-lmi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 46ab82fb2898..c316b1b592d6 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -469,7 +469,12 @@ static ssize_t new_password_store(struct kobject *kobj, if (ret) goto out; - if (tlmi_priv.pwd_admin->pwd_enabled) { + /* + * Note admin password is not always required if SMPControl enabled in BIOS, + * So only set if it's configured. + * Let BIOS figure it out - we'll get an error if operation is not permitted + */ + if (tlmi_priv.pwd_admin->pwd_enabled && strlen(tlmi_priv.pwd_admin->password)) { ret = tlmi_opcode_setting("WmiOpcodePasswordAdmin", tlmi_priv.pwd_admin->password); if (ret) From 5dcb5ef125907d09806509a9db8c6705041e0026 Mon Sep 17 00:00:00 2001 From: Mark Pearson Date: Thu, 24 Oct 2024 15:55:24 -0400 Subject: [PATCH 32/69] platform/x86: think-lmi: Multi-certificate support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Lenovo are adding support for both Admin and System certificates to the certificate based authentication feature This commit adds the support for this. Signed-off-by: Mark Pearson Link: https://lore.kernel.org/r/20241024195536.6992-4-mpearson-lenovo@squebb.ca [ij: Added #include + comment grammar fix] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- .../testing/sysfs-class-firmware-attributes | 1 + drivers/platform/x86/think-lmi.c | 116 ++++++++++++++---- drivers/platform/x86/think-lmi.h | 4 + 3 files changed, 95 insertions(+), 26 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes index 1a8b59f5d6e3..2713efa509b4 100644 --- a/Documentation/ABI/testing/sysfs-class-firmware-attributes +++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes @@ -303,6 +303,7 @@ Description: being configured allowing anyone to make changes. After any of these operations the system must reboot for the changes to take effect. + Admin and System certificates are supported from 2025 systems onward. certificate_thumbprint: Read only attribute used to display the MD5, SHA1 and SHA256 thumbprints diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index c316b1b592d6..38de0cb20d77 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -12,6 +12,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include #include #include @@ -169,11 +170,12 @@ MODULE_PARM_DESC(debug_support, "Enable debug command support"); */ #define LENOVO_CERT_THUMBPRINT_GUID "C59119ED-1C0D-4806-A8E9-59AA318176C4" -#define TLMI_POP_PWD BIT(0) /* Supervisor */ -#define TLMI_PAP_PWD BIT(1) /* Power-on */ -#define TLMI_HDD_PWD BIT(2) /* HDD/NVME */ -#define TLMI_SMP_PWD BIT(6) /* System Management */ -#define TLMI_CERT BIT(7) /* Certificate Based */ +#define TLMI_POP_PWD BIT(0) /* Supervisor */ +#define TLMI_PAP_PWD BIT(1) /* Power-on */ +#define TLMI_HDD_PWD BIT(2) /* HDD/NVME */ +#define TLMI_SMP_PWD BIT(6) /* System Management */ +#define TLMI_CERT_SVC BIT(7) /* Admin Certificate Based */ +#define TLMI_CERT_SMC BIT(8) /* System Certificate Based */ static const struct tlmi_err_codes tlmi_errs[] = { {"Success", 0}, @@ -653,6 +655,17 @@ static ssize_t level_store(struct kobject *kobj, static struct kobj_attribute auth_level = __ATTR_RW(level); +static char *cert_command(struct tlmi_pwd_setting *setting, const char *arg1, const char *arg2) +{ + /* Prepend with SVC or SMC if multicert supported */ + if (tlmi_priv.pwdcfg.core.password_mode >= TLMI_PWDCFG_MODE_MULTICERT) + return kasprintf(GFP_KERNEL, "%s,%s,%s", + setting == tlmi_priv.pwd_admin ? "SVC" : "SMC", + arg1, arg2); + else + return kasprintf(GFP_KERNEL, "%s,%s", arg1, arg2); +} + static ssize_t cert_thumbprint(char *buf, const char *arg, int count) { const struct acpi_buffer input = { strlen(arg), (char *)arg }; @@ -678,18 +691,35 @@ static ssize_t cert_thumbprint(char *buf, const char *arg, int count) return count; } +static char *thumbtypes[] = {"Md5", "Sha1", "Sha256"}; + static ssize_t certificate_thumbprint_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj); + unsigned int i; int count = 0; + char *wmistr; if (!tlmi_priv.certificate_support || !setting->cert_installed) return -EOPNOTSUPP; - count += cert_thumbprint(buf, "Md5", count); - count += cert_thumbprint(buf, "Sha1", count); - count += cert_thumbprint(buf, "Sha256", count); + for (i = 0; i < ARRAY_SIZE(thumbtypes); i++) { + if (tlmi_priv.pwdcfg.core.password_mode >= TLMI_PWDCFG_MODE_MULTICERT) { + /* Format: 'SVC | SMC, Thumbtype' */ + wmistr = kasprintf(GFP_KERNEL, "%s,%s", + setting == tlmi_priv.pwd_admin ? "SVC" : "SMC", + thumbtypes[i]); + } else { + /* Format: 'Thumbtype' */ + wmistr = kasprintf(GFP_KERNEL, "%s", thumbtypes[i]); + } + if (!wmistr) + return -ENOMEM; + count += cert_thumbprint(buf, wmistr, count); + kfree(wmistr); + } + return count; } @@ -721,7 +751,7 @@ static ssize_t cert_to_password_store(struct kobject *kobj, return -ENOMEM; /* Format: 'Password,Signature' */ - auth_str = kasprintf(GFP_KERNEL, "%s,%s", passwd, setting->signature); + auth_str = cert_command(setting, passwd, setting->signature); if (!auth_str) { kfree_sensitive(passwd); return -ENOMEM; @@ -735,12 +765,19 @@ static ssize_t cert_to_password_store(struct kobject *kobj, static struct kobj_attribute auth_cert_to_password = __ATTR_WO(cert_to_password); +enum cert_install_mode { + TLMI_CERT_INSTALL, + TLMI_CERT_UPDATE, +}; + static ssize_t certificate_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { struct tlmi_pwd_setting *setting = to_tlmi_pwd_setting(kobj); + enum cert_install_mode install_mode = TLMI_CERT_INSTALL; char *auth_str, *new_cert; + char *signature; char *guid; int ret; @@ -757,9 +794,9 @@ static ssize_t certificate_store(struct kobject *kobj, return -EACCES; /* Format: 'serial#, signature' */ - auth_str = kasprintf(GFP_KERNEL, "%s,%s", - dmi_get_system_info(DMI_PRODUCT_SERIAL), - setting->signature); + auth_str = cert_command(setting, + dmi_get_system_info(DMI_PRODUCT_SERIAL), + setting->signature); if (!auth_str) return -ENOMEM; @@ -776,24 +813,44 @@ static ssize_t certificate_store(struct kobject *kobj, if (setting->cert_installed) { /* Certificate is installed so this is an update */ - if (!setting->signature || !setting->signature[0]) { + install_mode = TLMI_CERT_UPDATE; + /* If admin account enabled - need to use its signature */ + if (tlmi_priv.pwd_admin->pwd_enabled) + signature = tlmi_priv.pwd_admin->signature; + else + signature = setting->signature; + } else { /* Cert install */ + /* Check if SMC and SVC already installed */ + if ((setting == tlmi_priv.pwd_system) && tlmi_priv.pwd_admin->cert_installed) { + /* This gets treated as a cert update */ + install_mode = TLMI_CERT_UPDATE; + signature = tlmi_priv.pwd_admin->signature; + } else { /* Regular cert install */ + install_mode = TLMI_CERT_INSTALL; + signature = setting->signature; + } + } + + if (install_mode == TLMI_CERT_UPDATE) { + /* This is a certificate update */ + if (!signature || !signature[0]) { kfree(new_cert); return -EACCES; } guid = LENOVO_UPDATE_BIOS_CERT_GUID; /* Format: 'Certificate,Signature' */ - auth_str = kasprintf(GFP_KERNEL, "%s,%s", - new_cert, setting->signature); + auth_str = cert_command(setting, new_cert, signature); } else { /* This is a fresh install */ - if (!setting->pwd_enabled || !setting->password[0]) { + /* To set admin cert, a password must be enabled */ + if ((setting == tlmi_priv.pwd_admin) && + (!setting->pwd_enabled || !setting->password[0])) { kfree(new_cert); return -EACCES; } guid = LENOVO_SET_BIOS_CERT_GUID; - /* Format: 'Certificate,Admin-password' */ - auth_str = kasprintf(GFP_KERNEL, "%s,%s", - new_cert, setting->password); + /* Format: 'Certificate, password' */ + auth_str = cert_command(setting, new_cert, setting->password); } kfree(new_cert); if (!auth_str) @@ -873,14 +930,19 @@ static umode_t auth_attr_is_visible(struct kobject *kobj, return 0; } - /* We only display certificates on Admin account, if supported */ + /* We only display certificates, if supported */ if (attr == &auth_certificate.attr || attr == &auth_signature.attr || attr == &auth_save_signature.attr || attr == &auth_cert_thumb.attr || attr == &auth_cert_to_password.attr) { - if ((setting == tlmi_priv.pwd_admin) && tlmi_priv.certificate_support) - return attr->mode; + if (tlmi_priv.certificate_support) { + if (setting == tlmi_priv.pwd_admin) + return attr->mode; + if ((tlmi_priv.pwdcfg.core.password_mode >= TLMI_PWDCFG_MODE_MULTICERT) && + (setting == tlmi_priv.pwd_system)) + return attr->mode; + } return 0; } @@ -1700,10 +1762,12 @@ static int tlmi_analyze(void) } } - if (tlmi_priv.certificate_support && - (tlmi_priv.pwdcfg.core.password_state & TLMI_CERT)) - tlmi_priv.pwd_admin->cert_installed = true; - + if (tlmi_priv.certificate_support) { + tlmi_priv.pwd_admin->cert_installed = + tlmi_priv.pwdcfg.core.password_state & TLMI_CERT_SVC; + tlmi_priv.pwd_system->cert_installed = + tlmi_priv.pwdcfg.core.password_state & TLMI_CERT_SMC; + } return 0; fail_clear_attr: diff --git a/drivers/platform/x86/think-lmi.h b/drivers/platform/x86/think-lmi.h index 4728f40143a3..f267d8b46957 100644 --- a/drivers/platform/x86/think-lmi.h +++ b/drivers/platform/x86/think-lmi.h @@ -41,6 +41,10 @@ enum save_mode { }; /* password configuration details */ +#define TLMI_PWDCFG_MODE_LEGACY 0 +#define TLMI_PWDCFG_MODE_PASSWORD 1 +#define TLMI_PWDCFG_MODE_MULTICERT 3 + struct tlmi_pwdcfg_core { uint32_t password_mode; uint32_t password_state; From 049571ce7678221767ec3ee5d522bc3de7d57ed3 Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Sat, 26 Oct 2024 21:38:01 +0200 Subject: [PATCH 33/69] platform/x86: wmi: Remove wmi_block_list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The wmi_block_list is only used by guid_count() and without proper protection. It also duplicates some of the WMI bus functionality. Remove the wmi_block_list and use bus_for_each_dev() instead. Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20241026193803.8802-1-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/wmi.c | 50 +++++++++++++++++++++----------------- 1 file changed, 28 insertions(+), 22 deletions(-) diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 2d6885c67ac0..4704e79197f6 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include #include @@ -37,8 +36,6 @@ MODULE_AUTHOR("Carlos Corbacho"); MODULE_DESCRIPTION("ACPI-WMI Mapping Driver"); MODULE_LICENSE("GPL"); -static LIST_HEAD(wmi_block_list); - struct guid_block { guid_t guid; union { @@ -63,7 +60,6 @@ enum { /* wmi_block flags */ struct wmi_block { struct wmi_device dev; - struct list_head list; struct guid_block gblock; struct acpi_device *acpi_device; struct rw_semaphore notify_lock; /* Protects notify callback add/remove */ @@ -73,6 +69,10 @@ struct wmi_block { unsigned long flags; }; +struct wmi_guid_count_context { + const guid_t *guid; + int count; +}; /* * If the GUID data block is marked as expensive, we must enable and @@ -942,21 +942,30 @@ static const struct device_type wmi_type_data = { .release = wmi_dev_release, }; -/* - * _WDG is a static list that is only parsed at startup, - * so it's safe to count entries without extra protection. - */ +static int wmi_count_guids(struct device *dev, void *data) +{ + struct wmi_guid_count_context *context = data; + struct wmi_block *wblock = dev_to_wblock(dev); + + if (guid_equal(&wblock->gblock.guid, context->guid)) + context->count++; + + return 0; +} + static int guid_count(const guid_t *guid) { - struct wmi_block *wblock; - int count = 0; + struct wmi_guid_count_context context = { + .guid = guid, + .count = 0, + }; + int ret; - list_for_each_entry(wblock, &wmi_block_list, list) { - if (guid_equal(&wblock->gblock.guid, guid)) - count++; - } + ret = bus_for_each_dev(&wmi_bus_type, NULL, &context, wmi_count_guids); + if (ret < 0) + return ret; - return count; + return context.count; } static int wmi_create_device(struct device *wmi_bus_dev, @@ -967,7 +976,7 @@ static int wmi_create_device(struct device *wmi_bus_dev, struct acpi_device_info *info; acpi_handle method_handle; acpi_status status; - uint count; + int count; if (wblock->gblock.flags & ACPI_WMI_EVENT) { wblock->dev.dev.type = &wmi_type_event; @@ -1035,6 +1044,9 @@ static int wmi_create_device(struct device *wmi_bus_dev, wblock->dev.dev.parent = wmi_bus_dev; count = guid_count(&wblock->gblock.guid); + if (count < 0) + return count; + if (count) { dev_set_name(&wblock->dev.dev, "%pUL-%d", &wblock->gblock.guid, count); set_bit(WMI_GUID_DUPLICATED, &wblock->flags); @@ -1120,14 +1132,11 @@ static int parse_wdg(struct device *wmi_bus_dev, struct platform_device *pdev) continue; } - list_add_tail(&wblock->list, &wmi_block_list); - retval = wmi_add_device(pdev, &wblock->dev); if (retval) { dev_err(wmi_bus_dev, "failed to register %pUL\n", &wblock->gblock.guid); - list_del(&wblock->list); put_device(&wblock->dev.dev); } } @@ -1227,9 +1236,6 @@ static void acpi_wmi_notify_handler(acpi_handle handle, u32 event, void *context static int wmi_remove_device(struct device *dev, void *data) { - struct wmi_block *wblock = dev_to_wblock(dev); - - list_del(&wblock->list); device_unregister(dev); return 0; From c382429b587ac49bd179d768f13e7fa5e7ed1787 Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Sat, 26 Oct 2024 21:38:02 +0200 Subject: [PATCH 34/69] platform/x86: wmi: Replace dev_to_wdev() with to_wmi_device() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Replace dev_to_wdev() with to_wmi_device() to stop duplicating functionality. Also switch to_wmi_device() to use container_of_const() so const values are handled correctly. Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20241026193803.8802-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/wmi.c | 9 ++++----- include/linux/wmi.h | 2 +- 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 4704e79197f6..b2576d5189ed 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -91,7 +91,6 @@ static const struct acpi_device_id wmi_device_ids[] = { MODULE_DEVICE_TABLE(acpi, wmi_device_ids); #define dev_to_wblock(__dev) container_of_const(__dev, struct wmi_block, dev.dev) -#define dev_to_wdev(__dev) container_of_const(__dev, struct wmi_device, dev) /* * GUID parsing functions @@ -199,7 +198,7 @@ static struct wmi_device *wmi_find_device_by_guid(const char *guid_string) if (!dev) return ERR_PTR(-ENODEV); - return dev_to_wdev(dev); + return to_wmi_device(dev); } static void wmi_device_put(struct wmi_device *wdev) @@ -761,7 +760,7 @@ static DEVICE_ATTR_RO(object_id); static ssize_t setable_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct wmi_device *wdev = dev_to_wdev(dev); + struct wmi_device *wdev = to_wmi_device(dev); return sysfs_emit(buf, "%d\n", (int)wdev->setable); } @@ -851,7 +850,7 @@ static int wmi_dev_probe(struct device *dev) dev_warn(dev, "failed to enable device -- probing anyway\n"); if (wdriver->probe) { - ret = wdriver->probe(dev_to_wdev(dev), + ret = wdriver->probe(to_wmi_device(dev), find_guid_context(wblock, wdriver)); if (ret) { if (ACPI_FAILURE(wmi_method_enable(wblock, false))) @@ -878,7 +877,7 @@ static void wmi_dev_remove(struct device *dev) up_write(&wblock->notify_lock); if (wdriver->remove) - wdriver->remove(dev_to_wdev(dev)); + wdriver->remove(to_wmi_device(dev)); if (ACPI_FAILURE(wmi_method_enable(wblock, false))) dev_warn(dev, "failed to disable device\n"); diff --git a/include/linux/wmi.h b/include/linux/wmi.h index 120019677fc6..fca5fd43c707 100644 --- a/include/linux/wmi.h +++ b/include/linux/wmi.h @@ -34,7 +34,7 @@ struct wmi_device { * * Cast a struct device to a struct wmi_device. */ -#define to_wmi_device(device) container_of(device, struct wmi_device, dev) +#define to_wmi_device(device) container_of_const(device, struct wmi_device, dev) extern acpi_status wmidev_evaluate_method(struct wmi_device *wdev, u8 instance, u32 method_id, From e001341a984e709e377b275123aecb5a763eaef9 Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Sat, 26 Oct 2024 21:38:03 +0200 Subject: [PATCH 35/69] platform/x86: wmi: Introduce to_wmi_driver() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce to_wmi_driver() as a replacement for dev_to_wdrv() so WMI drivers can use this support macro instead of having to duplicate its functionality. Signed-off-by: Armin Wolf Link: https://lore.kernel.org/r/20241026193803.8802-3-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/wmi.c | 12 +++++------- include/linux/wmi.h | 8 ++++++++ 2 files changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index b2576d5189ed..646370bd6b03 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -653,8 +653,6 @@ char *wmi_get_acpi_device_uid(const char *guid_string) } EXPORT_SYMBOL_GPL(wmi_get_acpi_device_uid); -#define drv_to_wdrv(__drv) container_of_const(__drv, struct wmi_driver, driver) - /* * sysfs interface */ @@ -802,7 +800,7 @@ static void wmi_dev_release(struct device *dev) static int wmi_dev_match(struct device *dev, const struct device_driver *driver) { - const struct wmi_driver *wmi_driver = drv_to_wdrv(driver); + const struct wmi_driver *wmi_driver = to_wmi_driver(driver); struct wmi_block *wblock = dev_to_wblock(dev); const struct wmi_device_id *id = wmi_driver->id_table; @@ -826,7 +824,7 @@ static int wmi_dev_match(struct device *dev, const struct device_driver *driver) static int wmi_dev_probe(struct device *dev) { struct wmi_block *wblock = dev_to_wblock(dev); - struct wmi_driver *wdriver = drv_to_wdrv(dev->driver); + struct wmi_driver *wdriver = to_wmi_driver(dev->driver); int ret = 0; /* Some older WMI drivers will break if instantiated multiple times, @@ -870,7 +868,7 @@ static int wmi_dev_probe(struct device *dev) static void wmi_dev_remove(struct device *dev) { struct wmi_block *wblock = dev_to_wblock(dev); - struct wmi_driver *wdriver = drv_to_wdrv(dev->driver); + struct wmi_driver *wdriver = to_wmi_driver(dev->driver); down_write(&wblock->notify_lock); wblock->driver_ready = false; @@ -889,7 +887,7 @@ static void wmi_dev_shutdown(struct device *dev) struct wmi_block *wblock; if (dev->driver) { - wdriver = drv_to_wdrv(dev->driver); + wdriver = to_wmi_driver(dev->driver); wblock = dev_to_wblock(dev); /* @@ -1173,7 +1171,7 @@ static int wmi_get_notify_data(struct wmi_block *wblock, union acpi_object **obj static void wmi_notify_driver(struct wmi_block *wblock, union acpi_object *obj) { - struct wmi_driver *driver = drv_to_wdrv(wblock->dev.dev.driver); + struct wmi_driver *driver = to_wmi_driver(wblock->dev.dev.driver); if (!obj && !driver->no_notify_data) { dev_warn(&wblock->dev.dev, "Event contains no event data\n"); diff --git a/include/linux/wmi.h b/include/linux/wmi.h index fca5fd43c707..10751c8e5e6a 100644 --- a/include/linux/wmi.h +++ b/include/linux/wmi.h @@ -73,6 +73,14 @@ struct wmi_driver { void (*notify)(struct wmi_device *device, union acpi_object *data); }; +/** + * to_wmi_driver() - Helper macro to cast a driver to a wmi_driver + * @drv: driver struct + * + * Cast a struct device_driver to a struct wmi_driver. + */ +#define to_wmi_driver(drv) container_of_const(drv, struct wmi_driver, driver) + extern int __must_check __wmi_driver_register(struct wmi_driver *driver, struct module *owner); extern void wmi_driver_unregister(struct wmi_driver *driver); From f60933390852beb1fbbcad12df5e261cf8312a9b Mon Sep 17 00:00:00 2001 From: chen zhang Date: Mon, 28 Oct 2024 10:49:49 +0800 Subject: [PATCH 36/69] platform/x86: compal-laptop: use sysfs_emit() instead of sprintf() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by: chen zhang Link: https://lore.kernel.org/r/20241028024949.24746-1-chenzhang@kylinos.cn Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/compal-laptop.c | 57 ++++++++++++++-------------- 1 file changed, 29 insertions(+), 28 deletions(-) diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c index 4e1d44670bd1..58754bc5b5b1 100644 --- a/drivers/platform/x86/compal-laptop.c +++ b/drivers/platform/x86/compal-laptop.c @@ -68,6 +68,7 @@ #include #include #include +#include #include #include @@ -364,21 +365,21 @@ static const struct rfkill_ops compal_rfkill_ops = { /* Wake_up interface */ -#define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \ -static ssize_t NAME##_show(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - return sprintf(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \ -} \ -static ssize_t NAME##_store(struct device *dev, \ - struct device_attribute *attr, const char *buf, size_t count) \ -{ \ - int state; \ - u8 old_val = ec_read_u8(ADDR); \ - if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \ - return -EINVAL; \ - ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \ - return count; \ +#define SIMPLE_MASKED_STORE_SHOW(NAME, ADDR, MASK) \ +static ssize_t NAME##_show(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + return sysfs_emit(buf, "%d\n", ((ec_read_u8(ADDR) & MASK) != 0)); \ +} \ +static ssize_t NAME##_store(struct device *dev, \ + struct device_attribute *attr, const char *buf, size_t count) \ +{ \ + int state; \ + u8 old_val = ec_read_u8(ADDR); \ + if (sscanf(buf, "%d", &state) != 1 || (state < 0 || state > 1)) \ + return -EINVAL; \ + ec_write(ADDR, state ? (old_val | MASK) : (old_val & ~MASK)); \ + return count; \ } SIMPLE_MASKED_STORE_SHOW(wake_up_pme, WAKE_UP_ADDR, WAKE_UP_PME) @@ -393,7 +394,7 @@ static ssize_t pwm_enable_show(struct device *dev, struct device_attribute *attr, char *buf) { struct compal_data *data = dev_get_drvdata(dev); - return sprintf(buf, "%d\n", data->pwm_enable); + return sysfs_emit(buf, "%d\n", data->pwm_enable); } static ssize_t pwm_enable_store(struct device *dev, @@ -432,7 +433,7 @@ static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, char *buf) { struct compal_data *data = dev_get_drvdata(dev); - return sprintf(buf, "%hhu\n", data->curr_pwm); + return sysfs_emit(buf, "%hhu\n", data->curr_pwm); } static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, @@ -460,21 +461,21 @@ static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, static ssize_t fan_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%d\n", get_fan_rpm()); + return sysfs_emit(buf, "%d\n", get_fan_rpm()); } /* Temperature interface */ -#define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \ -static ssize_t temp_##POSTFIX(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - return sprintf(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \ -} \ -static ssize_t label_##POSTFIX(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - return sprintf(buf, "%s\n", LABEL); \ +#define TEMPERATURE_SHOW_TEMP_AND_LABEL(POSTFIX, ADDRESS, LABEL) \ +static ssize_t temp_##POSTFIX(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + return sysfs_emit(buf, "%d\n", 1000 * (int)ec_read_s8(ADDRESS)); \ +} \ +static ssize_t label_##POSTFIX(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + return sysfs_emit(buf, "%s\n", LABEL); \ } /* Labels as in service guide */ From 7757f9d5d5554ceefd8b3f75b0a113fee84a4c10 Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Tue, 29 Oct 2024 21:10:27 -0300 Subject: [PATCH 37/69] alienware-wmi: fixed indentation and clean up MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixed inconsistent indentation and removed unnecessary (acpi_size) and (u32 *) casts. Signed-off-by: Kurt Borja Reviewed-by: Armin Wolf Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241030001028.7402-2-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/alienware-wmi.c | 134 +++++++++++----------- 1 file changed, 67 insertions(+), 67 deletions(-) diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index f5ee62ce1753..16a3fe9ac57a 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -116,68 +116,68 @@ static int __init dmi_matched(const struct dmi_system_id *dmi) static const struct dmi_system_id alienware_quirks[] __initconst = { { - .callback = dmi_matched, - .ident = "Alienware X51 R3", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R3"), - }, - .driver_data = &quirk_x51_r3, - }, + .callback = dmi_matched, + .ident = "Alienware X51 R3", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R3"), + }, + .driver_data = &quirk_x51_r3, + }, { - .callback = dmi_matched, - .ident = "Alienware X51 R2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R2"), - }, - .driver_data = &quirk_x51_r1_r2, - }, + .callback = dmi_matched, + .ident = "Alienware X51 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R2"), + }, + .driver_data = &quirk_x51_r1_r2, + }, { - .callback = dmi_matched, - .ident = "Alienware X51 R1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51"), - }, - .driver_data = &quirk_x51_r1_r2, - }, + .callback = dmi_matched, + .ident = "Alienware X51 R1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51"), + }, + .driver_data = &quirk_x51_r1_r2, + }, { - .callback = dmi_matched, - .ident = "Alienware ASM100", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "ASM100"), - }, - .driver_data = &quirk_asm100, - }, + .callback = dmi_matched, + .ident = "Alienware ASM100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "ASM100"), + }, + .driver_data = &quirk_asm100, + }, { - .callback = dmi_matched, - .ident = "Alienware ASM200", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "ASM200"), - }, - .driver_data = &quirk_asm200, - }, + .callback = dmi_matched, + .ident = "Alienware ASM200", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "ASM200"), + }, + .driver_data = &quirk_asm200, + }, { - .callback = dmi_matched, - .ident = "Alienware ASM201", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "ASM201"), - }, - .driver_data = &quirk_asm201, - }, - { - .callback = dmi_matched, - .ident = "Dell Inc. Inspiron 5675", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5675"), - }, - .driver_data = &quirk_inspiron5675, - }, + .callback = dmi_matched, + .ident = "Alienware ASM201", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "ASM201"), + }, + .driver_data = &quirk_asm201, + }, + { + .callback = dmi_matched, + .ident = "Dell Inc. Inspiron 5675", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5675"), + }, + .driver_data = &quirk_inspiron5675, + }, {} }; @@ -221,8 +221,8 @@ static struct platform_zone *zone_data; static struct platform_driver platform_driver = { .driver = { - .name = "alienware-wmi", - } + .name = "alienware-wmi", + } }; static struct attribute_group zone_attribute_group = { @@ -292,7 +292,7 @@ static int alienware_update_led(struct platform_zone *zone) guid = WMAX_CONTROL_GUID; method_id = WMAX_METHOD_ZONE_CONTROL; - input.length = (acpi_size) sizeof(wmax_basic_args); + input.length = sizeof(wmax_basic_args); input.pointer = &wmax_basic_args; } else { legacy_args.colors = zone->colors; @@ -306,7 +306,7 @@ static int alienware_update_led(struct platform_zone *zone) guid = LEGACY_CONTROL_GUID; method_id = zone->location + 1; - input.length = (acpi_size) sizeof(legacy_args); + input.length = sizeof(legacy_args); input.pointer = &legacy_args; } pr_debug("alienware-wmi: guid %s method %d\n", guid, method_id); @@ -358,7 +358,7 @@ static int wmax_brightness(int brightness) .led_mask = 0xFF, .percentage = brightness, }; - input.length = (acpi_size) sizeof(args); + input.length = sizeof(args); input.pointer = &args; status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, WMAX_METHOD_BRIGHTNESS, &input, NULL); @@ -508,7 +508,7 @@ static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args, struct acpi_buffer input; struct acpi_buffer output; - input.length = (acpi_size) sizeof(*in_args); + input.length = sizeof(*in_args); input.pointer = in_args; if (out_data) { output.length = ACPI_ALLOCATE_BUFFER; @@ -542,7 +542,7 @@ static ssize_t show_hdmi_cable(struct device *dev, }; status = alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_CABLE, - (u32 *) &out_data); + &out_data); if (ACPI_SUCCESS(status)) { if (out_data == 0) return sysfs_emit(buf, "[unconnected] connected unknown\n"); @@ -563,7 +563,7 @@ static ssize_t show_hdmi_source(struct device *dev, }; status = alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_STATUS, - (u32 *) &out_data); + &out_data); if (ACPI_SUCCESS(status)) { if (out_data == 1) @@ -643,7 +643,7 @@ static ssize_t show_amplifier_status(struct device *dev, }; status = alienware_wmax_command(&in_args, WMAX_METHOD_AMPLIFIER_CABLE, - (u32 *) &out_data); + &out_data); if (ACPI_SUCCESS(status)) { if (out_data == 0) return sysfs_emit(buf, "[unconnected] connected unknown\n"); @@ -695,7 +695,7 @@ static ssize_t show_deepsleep_status(struct device *dev, .arg = 0, }; status = alienware_wmax_command(&in_args, WMAX_METHOD_DEEP_SLEEP_STATUS, - (u32 *) &out_data); + &out_data); if (ACPI_SUCCESS(status)) { if (out_data == 0) return sysfs_emit(buf, "[disabled] s5 s5_s4\n"); From 479bb5ff60258653ce54abfb1a24c79aedf99ad6 Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Tue, 29 Oct 2024 21:10:56 -0300 Subject: [PATCH 38/69] alienware-wmi: alienware_wmax_command() is now input size agnostic MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit alienware_wmax_command() now takes void * and size_t instead of struct wmax_basic_args to extend support to new WMAX methods. Also int *out_data was changed to u32 *out_data, because new interface specifies u32 as output parameter and all previous callers would pass u32 * regardless. Signed-off-by: Kurt Borja Reviewed-by: Armin Wolf Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241030001057.7562-1-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/alienware-wmi.c | 29 ++++++++++++----------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index 16a3fe9ac57a..b27f3b64cc14 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -500,15 +500,15 @@ static void alienware_zone_exit(struct platform_device *dev) kfree(zone_attrs); } -static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args, - u32 command, int *out_data) +static acpi_status alienware_wmax_command(void *in_args, size_t in_size, + u32 command, u32 *out_data) { acpi_status status; union acpi_object *obj; struct acpi_buffer input; struct acpi_buffer output; - input.length = sizeof(*in_args); + input.length = in_size; input.pointer = in_args; if (out_data) { output.length = ACPI_ALLOCATE_BUFFER; @@ -541,8 +541,8 @@ static ssize_t show_hdmi_cable(struct device *dev, .arg = 0, }; status = - alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_CABLE, - &out_data); + alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_HDMI_CABLE, &out_data); if (ACPI_SUCCESS(status)) { if (out_data == 0) return sysfs_emit(buf, "[unconnected] connected unknown\n"); @@ -562,8 +562,8 @@ static ssize_t show_hdmi_source(struct device *dev, .arg = 0, }; status = - alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_STATUS, - &out_data); + alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_HDMI_STATUS, &out_data); if (ACPI_SUCCESS(status)) { if (out_data == 1) @@ -589,7 +589,8 @@ static ssize_t toggle_hdmi_source(struct device *dev, args.arg = 3; pr_debug("alienware-wmi: setting hdmi to %d : %s", args.arg, buf); - status = alienware_wmax_command(&args, WMAX_METHOD_HDMI_SOURCE, NULL); + status = alienware_wmax_command(&args, sizeof(args), + WMAX_METHOD_HDMI_SOURCE, NULL); if (ACPI_FAILURE(status)) pr_err("alienware-wmi: HDMI toggle failed: results: %u\n", @@ -642,8 +643,8 @@ static ssize_t show_amplifier_status(struct device *dev, .arg = 0, }; status = - alienware_wmax_command(&in_args, WMAX_METHOD_AMPLIFIER_CABLE, - &out_data); + alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_AMPLIFIER_CABLE, &out_data); if (ACPI_SUCCESS(status)) { if (out_data == 0) return sysfs_emit(buf, "[unconnected] connected unknown\n"); @@ -694,8 +695,8 @@ static ssize_t show_deepsleep_status(struct device *dev, struct wmax_basic_args in_args = { .arg = 0, }; - status = alienware_wmax_command(&in_args, WMAX_METHOD_DEEP_SLEEP_STATUS, - &out_data); + status = alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_DEEP_SLEEP_STATUS, &out_data); if (ACPI_SUCCESS(status)) { if (out_data == 0) return sysfs_emit(buf, "[disabled] s5 s5_s4\n"); @@ -723,8 +724,8 @@ static ssize_t toggle_deepsleep(struct device *dev, args.arg = 2; pr_debug("alienware-wmi: setting deep sleep to %d : %s", args.arg, buf); - status = alienware_wmax_command(&args, WMAX_METHOD_DEEP_SLEEP_CONTROL, - NULL); + status = alienware_wmax_command(&args, sizeof(args), + WMAX_METHOD_DEEP_SLEEP_CONTROL, NULL); if (ACPI_FAILURE(status)) pr_err("alienware-wmi: deep sleep control failed: results: %u\n", From 9f6c43041552c2bd39a21d750d92efae0946479e Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Tue, 29 Oct 2024 21:11:23 -0300 Subject: [PATCH 39/69] alienware-wmi: added platform profile support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implements platform profile support for Dell laptops with new WMAX thermal interface, present on some Alienware X-Series, Alienware M-Series and Dell's G-Series laptops. This interface is suspected to be used by Alienware Command Center (AWCC), which is not available for linux systems, to manage thermal profiles. This implementation makes use of three WMI methods, namely THERMAL_CONTROL, THERMAL_INFORMATION and GAME_SHIFT_STATUS, which take u32 as input and output arguments. Each method has a set of supported operations specified in their respective enums. Not all models with WMAX WMI interface support these methods. Because of this, models have to manually declare support through new quirks `thermal` for THERMAL_CONTROL and THERMAL_INFORMATION and `gmode` for GAME_SHIFT_STATUS. Wrappers written for these methods support multiple operations. THERMAL_CONTROL switches thermal modes through operation ACTIVATE_PROFILE. Available thermal codes are auto-detected at runtime and matched against a list of known thermal codes: Thermal Table "User Selectable Thermal Tables" (USTT): BALANCED 0xA0 BALANCED_PERFORMANCE 0xA1 COOL 0xA2 QUIET 0xA3 PERFORMANCE 0xA4 LOW_POWER 0xA5 Thermal Table Basic: QUIET 0x96 BALANCED 0x97 BALANCED_PERFORMANCE 0x98 PERFORMANCE 0x99 Devices are known to implement only one of these tables without mixing their thermal codes. The fact that the least significant digit of every thermal code is consecutive of one another is exploited to efficiently match codes through arrays. Autodetection of available codes is done through operation LIST_IDS of method THERMAL_INFORMATION. This operation lists fan IDs, CPU sensor ID, GPU sensor ID and available thermal profile codes, *in that order*. As number of fans and thermal codes is very model dependent, almost every ID is scanned and matched based on conditions found on is_wmax_thermal_code(). The known upper bound for the number of IDs is 13, corresponding to a device that have 4 fans, 2 sensors and 7 thermal codes. Additionally G-Series laptops have a key called G-key, which (with AWCC proprietary driver) switches the thermal mode to an special mode named GMODE with code 0xAB and changes Game Shift Status to 1. Game Shift is a mode the manufacturer claims, increases gaming performance. GAME_SHIFT_STATUS method is used to mimic this behavior when selecting PLATFORM_PROFILE_PERFORMANCE option. All of these profiles are known to only change fan speed profiles, although there are untested claims that some of them also change power profiles. Activating a thermal mode with method THERMAL_CONTROL may cause short hangs. This is a known problem present on every platform. Signed-off-by: Kurt Borja Reviewed-by: Ilpo Järvinen Reviewed-by: Armin Wolf Link: https://lore.kernel.org/r/20241030001124.7589-1-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/Kconfig | 1 + drivers/platform/x86/dell/alienware-wmi.c | 306 ++++++++++++++++++++++ 2 files changed, 307 insertions(+) diff --git a/drivers/platform/x86/dell/Kconfig b/drivers/platform/x86/dell/Kconfig index 68a49788a396..b06d634cdfcf 100644 --- a/drivers/platform/x86/dell/Kconfig +++ b/drivers/platform/x86/dell/Kconfig @@ -21,6 +21,7 @@ config ALIENWARE_WMI depends on LEDS_CLASS depends on NEW_LEDS depends on ACPI_WMI + select ACPI_PLATFORM_PROFILE help This is a driver for controlling Alienware BIOS driven features. It exposes an interface for controlling the AlienFX diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index b27f3b64cc14..1d62c2ce7ae0 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -8,8 +8,11 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include +#include #include #include +#include #include #include @@ -25,6 +28,13 @@ #define WMAX_METHOD_AMPLIFIER_CABLE 0x6 #define WMAX_METHOD_DEEP_SLEEP_CONTROL 0x0B #define WMAX_METHOD_DEEP_SLEEP_STATUS 0x0C +#define WMAX_METHOD_THERMAL_INFORMATION 0x14 +#define WMAX_METHOD_THERMAL_CONTROL 0x15 +#define WMAX_METHOD_GAME_SHIFT_STATUS 0x25 + +#define WMAX_THERMAL_MODE_GMODE 0xAB + +#define WMAX_FAILURE_CODE 0xFFFFFFFF MODULE_AUTHOR("Mario Limonciello "); MODULE_DESCRIPTION("Alienware special feature control"); @@ -49,11 +59,59 @@ enum WMAX_CONTROL_STATES { WMAX_SUSPEND = 3, }; +enum WMAX_THERMAL_INFORMATION_OPERATIONS { + WMAX_OPERATION_LIST_IDS = 0x03, + WMAX_OPERATION_CURRENT_PROFILE = 0x0B, +}; + +enum WMAX_THERMAL_CONTROL_OPERATIONS { + WMAX_OPERATION_ACTIVATE_PROFILE = 0x01, +}; + +enum WMAX_GAME_SHIFT_STATUS_OPERATIONS { + WMAX_OPERATION_TOGGLE_GAME_SHIFT = 0x01, + WMAX_OPERATION_GET_GAME_SHIFT_STATUS = 0x02, +}; + +enum WMAX_THERMAL_TABLES { + WMAX_THERMAL_TABLE_BASIC = 0x90, + WMAX_THERMAL_TABLE_USTT = 0xA0, +}; + +enum wmax_thermal_mode { + THERMAL_MODE_USTT_BALANCED, + THERMAL_MODE_USTT_BALANCED_PERFORMANCE, + THERMAL_MODE_USTT_COOL, + THERMAL_MODE_USTT_QUIET, + THERMAL_MODE_USTT_PERFORMANCE, + THERMAL_MODE_USTT_LOW_POWER, + THERMAL_MODE_BASIC_QUIET, + THERMAL_MODE_BASIC_BALANCED, + THERMAL_MODE_BASIC_BALANCED_PERFORMANCE, + THERMAL_MODE_BASIC_PERFORMANCE, + THERMAL_MODE_LAST, +}; + +static const enum platform_profile_option wmax_mode_to_platform_profile[THERMAL_MODE_LAST] = { + [THERMAL_MODE_USTT_BALANCED] = PLATFORM_PROFILE_BALANCED, + [THERMAL_MODE_USTT_BALANCED_PERFORMANCE] = PLATFORM_PROFILE_BALANCED_PERFORMANCE, + [THERMAL_MODE_USTT_COOL] = PLATFORM_PROFILE_COOL, + [THERMAL_MODE_USTT_QUIET] = PLATFORM_PROFILE_QUIET, + [THERMAL_MODE_USTT_PERFORMANCE] = PLATFORM_PROFILE_PERFORMANCE, + [THERMAL_MODE_USTT_LOW_POWER] = PLATFORM_PROFILE_LOW_POWER, + [THERMAL_MODE_BASIC_QUIET] = PLATFORM_PROFILE_QUIET, + [THERMAL_MODE_BASIC_BALANCED] = PLATFORM_PROFILE_BALANCED, + [THERMAL_MODE_BASIC_BALANCED_PERFORMANCE] = PLATFORM_PROFILE_BALANCED_PERFORMANCE, + [THERMAL_MODE_BASIC_PERFORMANCE] = PLATFORM_PROFILE_PERFORMANCE, +}; + struct quirk_entry { u8 num_zones; u8 hdmi_mux; u8 amplifier; u8 deepslp; + bool thermal; + bool gmode; }; static struct quirk_entry *quirks; @@ -64,6 +122,8 @@ static struct quirk_entry quirk_inspiron5675 = { .hdmi_mux = 0, .amplifier = 0, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_unknown = { @@ -71,6 +131,8 @@ static struct quirk_entry quirk_unknown = { .hdmi_mux = 0, .amplifier = 0, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_x51_r1_r2 = { @@ -78,6 +140,8 @@ static struct quirk_entry quirk_x51_r1_r2 = { .hdmi_mux = 0, .amplifier = 0, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_x51_r3 = { @@ -85,6 +149,8 @@ static struct quirk_entry quirk_x51_r3 = { .hdmi_mux = 0, .amplifier = 1, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_asm100 = { @@ -92,6 +158,8 @@ static struct quirk_entry quirk_asm100 = { .hdmi_mux = 1, .amplifier = 0, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_asm200 = { @@ -99,6 +167,8 @@ static struct quirk_entry quirk_asm200 = { .hdmi_mux = 1, .amplifier = 0, .deepslp = 1, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_asm201 = { @@ -106,6 +176,17 @@ static struct quirk_entry quirk_asm201 = { .hdmi_mux = 1, .amplifier = 1, .deepslp = 1, + .thermal = false, + .gmode = false, +}; + +static struct quirk_entry quirk_x_series = { + .num_zones = 2, + .hdmi_mux = 0, + .amplifier = 0, + .deepslp = 0, + .thermal = true, + .gmode = false, }; static int __init dmi_matched(const struct dmi_system_id *dmi) @@ -178,6 +259,15 @@ static const struct dmi_system_id alienware_quirks[] __initconst = { }, .driver_data = &quirk_inspiron5675, }, + { + .callback = dmi_matched, + .ident = "Alienware x15 R1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x15 R1"), + }, + .driver_data = &quirk_x_series, + }, {} }; @@ -214,10 +304,19 @@ struct wmax_led_args { u8 state; } __packed; +struct wmax_u32_args { + u8 operation; + u8 arg1; + u8 arg2; + u8 arg3; +}; + static struct platform_device *platform_device; static struct device_attribute *zone_dev_attrs; static struct attribute **zone_attrs; static struct platform_zone *zone_data; +static struct platform_profile_handler pp_handler; +static enum wmax_thermal_mode supported_thermal_profiles[PLATFORM_PROFILE_LAST]; static struct platform_driver platform_driver = { .driver = { @@ -761,6 +860,204 @@ static int create_deepsleep(struct platform_device *dev) return ret; } +/* + * Thermal Profile control + * - Provides thermal profile control through the Platform Profile API + */ +#define WMAX_THERMAL_TABLE_MASK GENMASK(7, 4) +#define WMAX_THERMAL_MODE_MASK GENMASK(3, 0) +#define WMAX_SENSOR_ID_MASK BIT(8) + +static bool is_wmax_thermal_code(u32 code) +{ + if (code & WMAX_SENSOR_ID_MASK) + return false; + + if ((code & WMAX_THERMAL_MODE_MASK) >= THERMAL_MODE_LAST) + return false; + + if ((code & WMAX_THERMAL_TABLE_MASK) == WMAX_THERMAL_TABLE_BASIC && + (code & WMAX_THERMAL_MODE_MASK) >= THERMAL_MODE_BASIC_QUIET) + return true; + + if ((code & WMAX_THERMAL_TABLE_MASK) == WMAX_THERMAL_TABLE_USTT && + (code & WMAX_THERMAL_MODE_MASK) <= THERMAL_MODE_USTT_LOW_POWER) + return true; + + return false; +} + +static int wmax_thermal_information(u8 operation, u8 arg, u32 *out_data) +{ + acpi_status status; + struct wmax_u32_args in_args = { + .operation = operation, + .arg1 = arg, + .arg2 = 0, + .arg3 = 0, + }; + + status = alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_THERMAL_INFORMATION, + out_data); + + if (ACPI_FAILURE(status)) + return -EIO; + + if (*out_data == WMAX_FAILURE_CODE) + return -EBADRQC; + + return 0; +} + +static int wmax_thermal_control(u8 profile) +{ + acpi_status status; + struct wmax_u32_args in_args = { + .operation = WMAX_OPERATION_ACTIVATE_PROFILE, + .arg1 = profile, + .arg2 = 0, + .arg3 = 0, + }; + u32 out_data; + + status = alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_THERMAL_CONTROL, + &out_data); + + if (ACPI_FAILURE(status)) + return -EIO; + + if (out_data == WMAX_FAILURE_CODE) + return -EBADRQC; + + return 0; +} + +static int wmax_game_shift_status(u8 operation, u32 *out_data) +{ + acpi_status status; + struct wmax_u32_args in_args = { + .operation = operation, + .arg1 = 0, + .arg2 = 0, + .arg3 = 0, + }; + + status = alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_GAME_SHIFT_STATUS, + out_data); + + if (ACPI_FAILURE(status)) + return -EIO; + + if (*out_data == WMAX_FAILURE_CODE) + return -EOPNOTSUPP; + + return 0; +} + +static int thermal_profile_get(struct platform_profile_handler *pprof, + enum platform_profile_option *profile) +{ + u32 out_data; + int ret; + + ret = wmax_thermal_information(WMAX_OPERATION_CURRENT_PROFILE, + 0, &out_data); + + if (ret < 0) + return ret; + + if (out_data == WMAX_THERMAL_MODE_GMODE) { + *profile = PLATFORM_PROFILE_PERFORMANCE; + return 0; + } + + if (!is_wmax_thermal_code(out_data)) + return -ENODATA; + + out_data &= WMAX_THERMAL_MODE_MASK; + *profile = wmax_mode_to_platform_profile[out_data]; + + return 0; +} + +static int thermal_profile_set(struct platform_profile_handler *pprof, + enum platform_profile_option profile) +{ + if (quirks->gmode) { + u32 gmode_status; + int ret; + + ret = wmax_game_shift_status(WMAX_OPERATION_GET_GAME_SHIFT_STATUS, + &gmode_status); + + if (ret < 0) + return ret; + + if ((profile == PLATFORM_PROFILE_PERFORMANCE && !gmode_status) || + (profile != PLATFORM_PROFILE_PERFORMANCE && gmode_status)) { + ret = wmax_game_shift_status(WMAX_OPERATION_TOGGLE_GAME_SHIFT, + &gmode_status); + + if (ret < 0) + return ret; + } + } + + return wmax_thermal_control(supported_thermal_profiles[profile]); +} + +static int create_thermal_profile(void) +{ + u32 out_data; + enum wmax_thermal_mode mode; + enum platform_profile_option profile; + int ret; + + for (u8 i = 0x2; i <= 0xD; i++) { + ret = wmax_thermal_information(WMAX_OPERATION_LIST_IDS, + i, &out_data); + + if (ret == -EIO) + return ret; + + if (ret == -EBADRQC) + break; + + if (!is_wmax_thermal_code(out_data)) + continue; + + mode = out_data & WMAX_THERMAL_MODE_MASK; + profile = wmax_mode_to_platform_profile[mode]; + supported_thermal_profiles[profile] = out_data; + + set_bit(profile, pp_handler.choices); + } + + if (bitmap_empty(pp_handler.choices, PLATFORM_PROFILE_LAST)) + return -ENODEV; + + if (quirks->gmode) { + supported_thermal_profiles[PLATFORM_PROFILE_PERFORMANCE] = + WMAX_THERMAL_MODE_GMODE; + + set_bit(PLATFORM_PROFILE_PERFORMANCE, pp_handler.choices); + } + + pp_handler.profile_get = thermal_profile_get; + pp_handler.profile_set = thermal_profile_set; + + return platform_profile_register(&pp_handler); +} + +static void remove_thermal_profile(void) +{ + if (quirks->thermal) + platform_profile_remove(); +} + static int __init alienware_wmi_init(void) { int ret; @@ -808,6 +1105,12 @@ static int __init alienware_wmi_init(void) goto fail_prep_deepsleep; } + if (quirks->thermal) { + ret = create_thermal_profile(); + if (ret) + goto fail_prep_thermal_profile; + } + ret = alienware_zone_init(platform_device); if (ret) goto fail_prep_zones; @@ -816,6 +1119,8 @@ static int __init alienware_wmi_init(void) fail_prep_zones: alienware_zone_exit(platform_device); + remove_thermal_profile(); +fail_prep_thermal_profile: fail_prep_deepsleep: fail_prep_amplifier: fail_prep_hdmi: @@ -835,6 +1140,7 @@ static void __exit alienware_wmi_exit(void) if (platform_device) { alienware_zone_exit(platform_device); remove_hdmi(platform_device); + remove_thermal_profile(); platform_device_unregister(platform_device); platform_driver_unregister(&platform_driver); } From 18eec62ee0659cfef223f9281acab27bd85dbee5 Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Tue, 29 Oct 2024 21:11:49 -0300 Subject: [PATCH 40/69] alienware-wmi: added force module parameters MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Added force_platform_profile and force_gmode unsafe module parameters, allowing users to force `thermal` and `gmode` quirks respectively. Signed-off-by: Kurt Borja Reviewed-by: Armin Wolf Link: https://lore.kernel.org/r/20241030001148.7623-2-kuurtb@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/alienware-wmi.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index 1d62c2ce7ae0..62cb81750573 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -42,6 +42,14 @@ MODULE_LICENSE("GPL"); MODULE_ALIAS("wmi:" LEGACY_CONTROL_GUID); MODULE_ALIAS("wmi:" WMAX_CONTROL_GUID); +static bool force_platform_profile; +module_param_unsafe(force_platform_profile, bool, 0); +MODULE_PARM_DESC(force_platform_profile, "Forces auto-detecting thermal profiles without checking if WMI thermal backend is available"); + +static bool force_gmode; +module_param_unsafe(force_gmode, bool, 0); +MODULE_PARM_DESC(force_gmode, "Forces G-Mode when performance profile is selected"); + enum INTERFACE_FLAGS { LEGACY, WMAX, @@ -1075,6 +1083,16 @@ static int __init alienware_wmi_init(void) if (quirks == NULL) quirks = &quirk_unknown; + if (force_platform_profile) + quirks->thermal = true; + + if (force_gmode) { + if (quirks->thermal) + quirks->gmode = true; + else + pr_warn("force_gmode requieres platform profile support\n"); + } + ret = platform_driver_register(&platform_driver); if (ret) goto fail_platform_driver; From f164dd0bf4c674bd3ae8cfc119f3cb03f09f9aef Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Tue, 29 Oct 2024 21:12:27 -0300 Subject: [PATCH 41/69] alienware-wmi: WMAX interface documentation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Added documentation for new WMAX interface, present on some Alienware X-Series, Alienware M-Series and Dell's G-Series laptops. Signed-off-by: Kurt Borja Reviewed-by: Armin Wolf Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241030001228.7770-1-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- Documentation/wmi/devices/alienware-wmi.rst | 387 ++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 388 insertions(+) create mode 100644 Documentation/wmi/devices/alienware-wmi.rst diff --git a/Documentation/wmi/devices/alienware-wmi.rst b/Documentation/wmi/devices/alienware-wmi.rst new file mode 100644 index 000000000000..03f932494d58 --- /dev/null +++ b/Documentation/wmi/devices/alienware-wmi.rst @@ -0,0 +1,387 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +============================================== +Dell AWCC WMI interface driver (alienware-wmi) +============================================== + +Introduction +============ + +The WMI device WMAX has been implemented for many Alienware and Dell's G-Series +models. Throughout these models, two implementations have been identified. The +first one, used by older systems, deals with HDMI, brightness, RGB, amplifier +and deep sleep control. The second one used by newer systems deals primarily +with thermal, overclocking, and GPIO control. + +It is suspected that the latter is used by Alienware Command Center (AWCC) to +manage manufacturer predefined thermal profiles. The alienware-wmi driver +exposes Thermal_Information and Thermal_Control methods through the Platform +Profile API to mimic AWCC's behavior. + +This newer interface, named AWCCMethodFunction has been reverse engineered, as +Dell has not provided any official documentation. We will try to describe to the +best of our ability its discovered inner workings. + +.. note:: + The following method description may be incomplete and some operations have + different implementations between devices. + +WMI interface description +------------------------- + +The WMI interface description can be decoded from the embedded binary MOF (bmof) +data using the `bmfdec `_ utility: + +:: + + [WMI, Dynamic, Provider("WmiProv"), Locale("MS\\0x409"), Description("WMI Function"), guid("{A70591CE-A997-11DA-B012-B622A1EF5492}")] + class AWCCWmiMethodFunction { + [key, read] string InstanceName; + [read] boolean Active; + + [WmiMethodId(13), Implemented, read, write, Description("Return Overclocking Report.")] void Return_OverclockingReport([out] uint32 argr); + [WmiMethodId(14), Implemented, read, write, Description("Set OCUIBIOS Control.")] void Set_OCUIBIOSControl([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(15), Implemented, read, write, Description("Clear OC FailSafe Flag.")] void Clear_OCFailSafeFlag([out] uint32 argr); + [WmiMethodId(19), Implemented, read, write, Description("Get Fan Sensors.")] void GetFanSensors([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(20), Implemented, read, write, Description("Thermal Information.")] void Thermal_Information([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(21), Implemented, read, write, Description("Thermal Control.")] void Thermal_Control([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(23), Implemented, read, write, Description("MemoryOCControl.")] void MemoryOCControl([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(26), Implemented, read, write, Description("System Information.")] void SystemInformation([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(28), Implemented, read, write, Description("Power Information.")] void PowerInformation([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(32), Implemented, read, write, Description("FW Update GPIO toggle.")] void FWUpdateGPIOtoggle([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(33), Implemented, read, write, Description("Read Total of GPIOs.")] void ReadTotalofGPIOs([out] uint32 argr); + [WmiMethodId(34), Implemented, read, write, Description("Read GPIO pin Status.")] void ReadGPIOpPinStatus([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(35), Implemented, read, write, Description("Read Chassis Color.")] void ReadChassisColor([out] uint32 argr); + [WmiMethodId(36), Implemented, read, write, Description("Read Platform Properties.")] void ReadPlatformProperties([out] uint32 argr); + [WmiMethodId(37), Implemented, read, write, Description("Game Shift Status.")] void GameShiftStatus([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(128), Implemented, read, write, Description("Caldera SW installation.")] void CalderaSWInstallation([out] uint32 argr); + [WmiMethodId(129), Implemented, read, write, Description("Caldera SW is released.")] void CalderaSWReleased([out] uint32 argr); + [WmiMethodId(130), Implemented, read, write, Description("Caldera Connection Status.")] void CalderaConnectionStatus([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(131), Implemented, read, write, Description("Surprise Unplugged Flag Status.")] void SurpriseUnpluggedFlagStatus([out] uint32 argr); + [WmiMethodId(132), Implemented, read, write, Description("Clear Surprise Unplugged Flag.")] void ClearSurpriseUnpluggedFlag([out] uint32 argr); + [WmiMethodId(133), Implemented, read, write, Description("Cancel Undock Request.")] void CancelUndockRequest([out] uint32 argr); + [WmiMethodId(135), Implemented, read, write, Description("Devices in Caldera.")] void DevicesInCaldera([in] uint32 arg2, [out] uint32 argr); + [WmiMethodId(136), Implemented, read, write, Description("Notify BIOS for SW ready to disconnect Caldera.")] void NotifyBIOSForSWReadyToDisconnectCaldera([out] uint32 argr); + [WmiMethodId(160), Implemented, read, write, Description("Tobii SW installation.")] void TobiiSWinstallation([out] uint32 argr); + [WmiMethodId(161), Implemented, read, write, Description("Tobii SW Released.")] void TobiiSWReleased([out] uint32 argr); + [WmiMethodId(162), Implemented, read, write, Description("Tobii Camera Power Reset.")] void TobiiCameraPowerReset([out] uint32 argr); + [WmiMethodId(163), Implemented, read, write, Description("Tobii Camera Power On.")] void TobiiCameraPowerOn([out] uint32 argr); + [WmiMethodId(164), Implemented, read, write, Description("Tobii Camera Power Off.")] void TobiiCameraPowerOff([out] uint32 argr); + }; + +Some of these methods get quite intricate so we will describe them using +pseudo-code that vaguely resembles the original ASL code. + +Methods not described in the following document have unknown behavior. + +Argument Structure +------------------ + +All input arguments have type **uint32** and their structure is very similar +between methods. Usually, the first byte corresponds to a specific *operation* +the method performs, and the subsequent bytes correspond to *arguments* passed +to this *operation*. For example, if an operation has code 0x01 and requires an +ID 0xA0, the argument you would pass to the method is 0xA001. + + +Thermal Methods +=============== + +WMI method Thermal_Information([in] uint32 arg2, [out] uint32 argr) +------------------------------------------------------------------- + +:: + + if BYTE_0(arg2) == 0x01: + argr = 1 + + if BYTE_0(arg2) == 0x02: + argr = UNKNOWN_CONSTANT + + if BYTE_0(arg2) == 0x03: + if BYTE_1(arg2) == 0x00: + argr = FAN_ID_0 + + if BYTE_1(arg2) == 0x01: + argr = FAN_ID_1 + + if BYTE_1(arg2) == 0x02: + argr = FAN_ID_2 + + if BYTE_1(arg2) == 0x03: + argr = FAN_ID_3 + + if BYTE_1(arg2) == 0x04: + argr = SENSOR_ID_CPU | 0x0100 + + if BYTE_1(arg2) == 0x05: + argr = SENSOR_ID_GPU | 0x0100 + + if BYTE_1(arg2) == 0x06: + argr = THERMAL_MODE_QUIET_ID + + if BYTE_1(arg2) == 0x07: + argr = THERMAL_MODE_BALANCED_ID + + if BYTE_1(arg2) == 0x08: + argr = THERMAL_MODE_BALANCED_PERFORMANCE_ID + + if BYTE_1(arg2) == 0x09: + argr = THERMAL_MODE_PERFORMANCE_ID + + if BYTE_1(arg2) == 0x0A: + argr = THERMAL_MODE_LOW_POWER_ID + + if BYTE_1(arg2) == 0x0B: + argr = THERMAL_MODE_GMODE_ID + + else: + argr = 0xFFFFFFFF + + if BYTE_0(arg2) == 0x04: + if is_valid_sensor(BYTE_1(arg2)): + argr = SENSOR_TEMP_C + else: + argr = 0xFFFFFFFF + + if BYTE_0(arg2) == 0x05: + if is_valid_fan(BYTE_1(arg2)): + argr = FAN_RPM() + + if BYTE_0(arg2) == 0x06: + skip + + if BYTE_0(arg2) == 0x07: + argr = 0 + + If BYTE_0(arg2) == 0x08: + if is_valid_fan(BYTE_1(arg2)): + argr = 0 + else: + argr = 0xFFFFFFFF + + if BYTE_0(arg2) == 0x09: + if is_valid_fan(BYTE_1(arg2)): + argr = FAN_UNKNOWN_STAT_0() + + else: + argr = 0xFFFFFFFF + + if BYTE_0(arg2) == 0x0A: + argr = THERMAL_MODE_BALANCED_ID + + if BYTE_0(arg2) == 0x0B: + argr = CURRENT_THERMAL_MODE() + + if BYTE_0(arg2) == 0x0C: + if is_valid_fan(BYTE_1(arg2)): + argr = FAN_UNKNOWN_STAT_1() + else: + argr = 0xFFFFFFFF + +Operation 0x03 list all available fan IDs, sensor IDs and thermal profile +codes in order, but different models may have different number of fans and +thermal profiles. These are the known ranges: + +* Fan IDs: from 2 up to 4 +* Sensor IDs: 2 +* Thermal profile codes: from 1 up to 7 + +In total BYTE_1(ARG2) may range from 0x5 up to 0xD depending on the model. + +WMI method Thermal_Control([in] uint32 arg2, [out] uint32 argr) +--------------------------------------------------------------- + +:: + + if BYTE_0(arg2) == 0x01: + if is_valid_thermal_profile(BYTE_1(arg2)): + SET_THERMAL_PROFILE(BYTE_1(arg2)) + argr = 0 + + if BYTE_0(arg2) == 0x02: + if is_valid_fan(BYTE_1(arg2)): + SET_FAN_SPEED_MULTIPLIER(BYTE_2(arg2)) + argr = 0 + else: + argr = 0xFFFFFFFF + +.. note:: + While you can manually change the fan speed multiplier with this method, + Dell's BIOS tends to overwrite this changes anyway. + +These are the known thermal profile codes: + +:: + + CUSTOM 0x00 + + BALANCED_USTT 0xA0 + BALANCED_PERFORMANCE_USTT 0xA1 + COOL_USTT 0xA2 + QUIET_USTT 0xA3 + PERFORMANCE_USTT 0xA4 + LOW_POWER_USTT 0xA5 + + QUIET 0x96 + BALANCED 0x97 + BALANCED_PERFORMANCE 0x98 + PERFORMANCE 0x99 + + GMODE 0xAB + +Usually if a model doesn't support the first four profiles they will support +the User Selectable Thermal Tables (USTT) profiles and vice-versa. + +GMODE replaces PERFORMANCE in G-Series laptops. + +WMI method GameShiftStatus([in] uint32 arg2, [out] uint32 argr) +--------------------------------------------------------------- + +:: + + if BYTE_0(arg2) == 0x1: + TOGGLE_GAME_SHIFT() + argr = GET_GAME_SHIFT_STATUS() + + if BYTE_0(arg2) == 0x2: + argr = GET_GAME_SHIFT_STATUS() + +Game Shift Status does not change the fan speed profile but it could be some +sort of CPU/GPU power profile. Benchmarks have not been done. + +This method is only present on Dell's G-Series laptops and it's implementation +implies GMODE thermal profile is available, even if operation 0x03 of +Thermal_Information does not list it. + +G-key on Dell's G-Series laptops also changes Game Shift status, so both are +directly related. + +WMI method GetFanSensors([in] uint32 arg2, [out] uint32 argr) +------------------------------------------------------------- + +:: + + if BYTE_0(arg2) == 0x1: + if is_valid_fan(BYTE_1(arg2)): + argr = 1 + else: + argr = 0 + + if BYTE_0(arg2) == 0x2: + if is_valid_fan(BYTE_1(arg2)): + if BYTE_2(arg2) == 0: + argr == SENSOR_ID + else + argr == 0xFFFFFFFF + else: + argr = 0 + +Overclocking Methods +==================== + +.. warning:: + These methods have not been tested and are only partially reverse + engineered. + +WMI method Return_OverclockingReport([out] uint32 argr) +------------------------------------------------------- + +:: + + CSMI (0xE3, 0x99) + argr = 0 + +CSMI is an unknown operation. + +WMI method Set_OCUIBIOSControl([in] uint32 arg2, [out] uint32 argr) +------------------------------------------------------------------- + +:: + + CSMI (0xE3, 0x99) + argr = 0 + +CSMI is an unknown operation. + +WMI method Clear_OCFailSafeFlag([out] uint32 argr) +-------------------------------------------------- + +:: + + CSMI (0xE3, 0x99) + argr = 0 + +CSMI is an unknown operation. + + +WMI method MemoryOCControl([in] uint32 arg2, [out] uint32 argr) +--------------------------------------------------------------- + +AWCC supports memory overclocking, but this method is very intricate and has +not been deciphered yet. + +GPIO methods +============ + +These methods are probably related to some kind of firmware update system, +through a GPIO device. + +.. warning:: + These methods have not been tested and are only partially reverse + engineered. + +WMI method FWUpdateGPIOtoggle([in] uint32 arg2, [out] uint32 argr) +------------------------------------------------------------------ + +:: + + if BYTE_0(arg2) == 0: + if BYTE_1(arg2) == 1: + SET_PIN_A_HIGH() + else: + SET_PIN_A_LOW() + + if BYTE_0(arg2) == 1: + if BYTE_1(arg2) == 1: + SET_PIN_B_HIGH() + + else: + SET_PIN_B_LOW() + + else: + argr = 1 + +WMI method ReadTotalofGPIOs([out] uint32 argr) +---------------------------------------------- + +:: + + argr = 0x02 + +WMI method ReadGPIOpPinStatus([in] uint32 arg2, [out] uint32 argr) +------------------------------------------------------------------ + +:: + + if BYTE_0(arg2) == 0: + argr = PIN_A_STATUS + + if BYTE_0(arg2) == 1: + argr = PIN_B_STATUS + +Other information Methods +========================= + +WMI method ReadChassisColor([out] uint32 argr) +---------------------------------------------- + +:: + + argr = CHASSIS_COLOR_ID + +Acknowledgements +================ + +Kudos to `AlexIII `_ for documenting +and testing available thermal profile codes. diff --git a/MAINTAINERS b/MAINTAINERS index 67f967175e11..faf282e841e7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -792,6 +792,7 @@ F: drivers/perf/alibaba_uncore_drw_pmu.c ALIENWARE WMI DRIVER L: Dell.Client.Kernel@dell.com S: Maintained +F: Documentation/wmi/devices/alienware-wmi.rst F: drivers/platform/x86/dell/alienware-wmi.c ALLEGRO DVT VIDEO IP CORE DRIVER From df7f9acd8646bfad565e6d68a293ec0d8e3f2108 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 16 Oct 2024 13:59:51 +0300 Subject: [PATCH 42/69] platform/x86: intel: Add 'intel' prefix to the modules automatically MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rework Makefile to add 'intel' prefix to the modules automatically. This removes a lot of boilerplate code in it and also makes robust against mistypos in the prefix. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241016105950.785820-2-andriy.shevchenko@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/Makefile | 68 ++++++++----------- .../intel/{intel_plr_tpmi.c => plr_tpmi.c} | 0 .../x86/intel/{tpmi.c => vsec_tpmi.c} | 2 +- 3 files changed, 30 insertions(+), 40 deletions(-) rename drivers/platform/x86/intel/{intel_plr_tpmi.c => plr_tpmi.c} (100%) rename drivers/platform/x86/intel/{tpmi.c => vsec_tpmi.c} (99%) diff --git a/drivers/platform/x86/intel/Makefile b/drivers/platform/x86/intel/Makefile index 74db065c82d6..78acb414e154 100644 --- a/drivers/platform/x86/intel/Makefile +++ b/drivers/platform/x86/intel/Makefile @@ -17,50 +17,40 @@ obj-$(CONFIG_INTEL_UNCORE_FREQ_CONTROL) += uncore-frequency/ # Intel input drivers -intel-hid-y := hid.o -obj-$(CONFIG_INTEL_HID_EVENT) += intel-hid.o -intel-vbtn-y := vbtn.o -obj-$(CONFIG_INTEL_VBTN) += intel-vbtn.o +intel-target-$(CONFIG_INTEL_HID_EVENT) += hid.o +intel-target-$(CONFIG_INTEL_VBTN) += vbtn.o # Intel miscellaneous drivers -obj-$(CONFIG_INTEL_ISHTP_ECLITE) += ishtp_eclite.o -intel_int0002_vgpio-y := int0002_vgpio.o -obj-$(CONFIG_INTEL_INT0002_VGPIO) += intel_int0002_vgpio.o -intel_oaktrail-y := oaktrail.o -obj-$(CONFIG_INTEL_OAKTRAIL) += intel_oaktrail.o -intel_sdsi-y := sdsi.o -obj-$(CONFIG_INTEL_SDSI) += intel_sdsi.o -intel_vsec-y := vsec.o -obj-$(CONFIG_INTEL_VSEC) += intel_vsec.o +intel-target-$(CONFIG_INTEL_INT0002_VGPIO) += int0002_vgpio.o +intel-target-$(CONFIG_INTEL_ISHTP_ECLITE) += ishtp_eclite.o +intel-target-$(CONFIG_INTEL_OAKTRAIL) += oaktrail.o +intel-target-$(CONFIG_INTEL_SDSI) += sdsi.o +intel-target-$(CONFIG_INTEL_VSEC) += vsec.o # Intel PMIC / PMC / P-Unit drivers -intel_bxtwc_tmu-y := bxtwc_tmu.o -obj-$(CONFIG_INTEL_BXTWC_PMIC_TMU) += intel_bxtwc_tmu.o -intel_crystal_cove_charger-y := crystal_cove_charger.o -obj-$(CONFIG_X86_ANDROID_TABLETS) += intel_crystal_cove_charger.o -intel_bytcrc_pwrsrc-y := bytcrc_pwrsrc.o -obj-$(CONFIG_INTEL_BYTCRC_PWRSRC) += intel_bytcrc_pwrsrc.o -intel_chtdc_ti_pwrbtn-y := chtdc_ti_pwrbtn.o -obj-$(CONFIG_INTEL_CHTDC_TI_PWRBTN) += intel_chtdc_ti_pwrbtn.o -intel_chtwc_int33fe-y := chtwc_int33fe.o -obj-$(CONFIG_INTEL_CHTWC_INT33FE) += intel_chtwc_int33fe.o -intel_mrfld_pwrbtn-y := mrfld_pwrbtn.o -obj-$(CONFIG_INTEL_MRFLD_PWRBTN) += intel_mrfld_pwrbtn.o -intel_punit_ipc-y := punit_ipc.o -obj-$(CONFIG_INTEL_PUNIT_IPC) += intel_punit_ipc.o +intel-target-$(CONFIG_INTEL_BYTCRC_PWRSRC) += bytcrc_pwrsrc.o +intel-target-$(CONFIG_INTEL_BXTWC_PMIC_TMU) += bxtwc_tmu.o +intel-target-$(CONFIG_INTEL_CHTDC_TI_PWRBTN) += chtdc_ti_pwrbtn.o +intel-target-$(CONFIG_INTEL_CHTWC_INT33FE) += chtwc_int33fe.o +intel-target-$(CONFIG_X86_ANDROID_TABLETS) += crystal_cove_charger.o +intel-target-$(CONFIG_INTEL_MRFLD_PWRBTN) += mrfld_pwrbtn.o +intel-target-$(CONFIG_INTEL_PUNIT_IPC) += punit_ipc.o # TPMI drivers -intel_vsec_tpmi-y := tpmi.o -obj-$(CONFIG_INTEL_TPMI) += intel_vsec_tpmi.o -obj-$(CONFIG_INTEL_PLR_TPMI) += intel_plr_tpmi.o - -intel_tpmi_power_domains-y := tpmi_power_domains.o -obj-$(CONFIG_INTEL_TPMI_POWER_DOMAINS) += intel_tpmi_power_domains.o +intel-target-$(CONFIG_INTEL_PLR_TPMI) += plr_tpmi.o +intel-target-$(CONFIG_INTEL_TPMI_POWER_DOMAINS) += tpmi_power_domains.o +intel-target-$(CONFIG_INTEL_TPMI) += vsec_tpmi.o # Intel Uncore drivers -intel-rst-y := rst.o -obj-$(CONFIG_INTEL_RST) += intel-rst.o -intel-smartconnect-y := smartconnect.o -obj-$(CONFIG_INTEL_SMARTCONNECT) += intel-smartconnect.o -intel_turbo_max_3-y := turbo_max_3.o -obj-$(CONFIG_INTEL_TURBO_MAX_3) += intel_turbo_max_3.o +intel-target-$(CONFIG_INTEL_RST) += rst.o +intel-target-$(CONFIG_INTEL_SMARTCONNECT) += smartconnect.o +intel-target-$(CONFIG_INTEL_TURBO_MAX_3) += turbo_max_3.o + +# Add 'intel' prefix to each module listed in intel-target-* +define INTEL_OBJ_TARGET +intel-$(1)-y := $(1).o +obj-$(2) += intel-$(1).o +endef + +$(foreach target, $(basename $(intel-target-y)), $(eval $(call INTEL_OBJ_TARGET,$(target),y))) +$(foreach target, $(basename $(intel-target-m)), $(eval $(call INTEL_OBJ_TARGET,$(target),m))) diff --git a/drivers/platform/x86/intel/intel_plr_tpmi.c b/drivers/platform/x86/intel/plr_tpmi.c similarity index 100% rename from drivers/platform/x86/intel/intel_plr_tpmi.c rename to drivers/platform/x86/intel/plr_tpmi.c diff --git a/drivers/platform/x86/intel/tpmi.c b/drivers/platform/x86/intel/vsec_tpmi.c similarity index 99% rename from drivers/platform/x86/intel/tpmi.c rename to drivers/platform/x86/intel/vsec_tpmi.c index 486ddc9b3592..c637e32048a3 100644 --- a/drivers/platform/x86/intel/tpmi.c +++ b/drivers/platform/x86/intel/vsec_tpmi.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * intel-tpmi : Driver to enumerate TPMI features and create devices + * Driver to enumerate TPMI features and create devices * * Copyright (c) 2023, Intel Corporation. * All Rights Reserved. From d68cb6023356af3bd3193983ad4ec03954a0b3e2 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 1 Nov 2024 11:02:30 +0000 Subject: [PATCH 43/69] alienware-wmi: Fix spelling mistake "requieres" -> "requires" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There is a spelling mistake in a pr_warn message. Fix it. Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20241101110230.3303197-1-colin.i.king@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/alienware-wmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index 62cb81750573..a800c28bb4d5 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -1090,7 +1090,7 @@ static int __init alienware_wmi_init(void) if (quirks->thermal) quirks->gmode = true; else - pr_warn("force_gmode requieres platform profile support\n"); + pr_warn("force_gmode requires platform profile support\n"); } ret = platform_driver_register(&platform_driver); From ab49d7bf991a524a976c9fbbeb53b050ebe4323f Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sat, 2 Nov 2024 16:59:41 +0100 Subject: [PATCH 44/69] platform/x86/intel/vsec: Remove a useless mutex MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ida_alloc()/ida_free() don't need any mutex, so remove this one. It was introduced by commit 9a90ea7d3784 ("platform/x86/intel/vsec: Use mutex for ida_alloc() and ida_free()"). Signed-off-by: Christophe JAILLET Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/ccc08a262304f7f8c2e435349f0f714ebf9acfcd.1730563031.git.christophe.jaillet@wanadoo.fr Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/vsec.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel/vsec.c index 7b5cc9993974..9e0f8e38178c 100644 --- a/drivers/platform/x86/intel/vsec.c +++ b/drivers/platform/x86/intel/vsec.c @@ -79,17 +79,13 @@ static void intel_vsec_remove_aux(void *data) auxiliary_device_uninit(data); } -static DEFINE_MUTEX(vsec_ida_lock); - static void intel_vsec_dev_release(struct device *dev) { struct intel_vsec_device *intel_vsec_dev = dev_to_ivdev(dev); xa_erase(&auxdev_array, intel_vsec_dev->id); - mutex_lock(&vsec_ida_lock); ida_free(intel_vsec_dev->ida, intel_vsec_dev->auxdev.id); - mutex_unlock(&vsec_ida_lock); kfree(intel_vsec_dev->resource); kfree(intel_vsec_dev); @@ -113,9 +109,7 @@ int intel_vsec_add_aux(struct pci_dev *pdev, struct device *parent, return ret; } - mutex_lock(&vsec_ida_lock); id = ida_alloc(intel_vsec_dev->ida, GFP_KERNEL); - mutex_unlock(&vsec_ida_lock); if (id < 0) { xa_erase(&auxdev_array, intel_vsec_dev->id); kfree(intel_vsec_dev->resource); From cc8e2dbf99d2c5844ac06fa392675e994e5ed519 Mon Sep 17 00:00:00 2001 From: Shyam Sundar S K Date: Mon, 4 Nov 2024 11:18:27 +0530 Subject: [PATCH 45/69] platform/x86/amd/pmf: Use dev_err_probe() to simplify error handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To simplify error handling in the amd_pmf probe function and reduce code size, dev_err() is replaced with dev_err_probe(). Reviewed-by: Mario Limonciello Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Signed-off-by: Shyam Sundar S K Link: https://lore.kernel.org/r/20241104054829.620858-2-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/pmf/core.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c index 47126abd13ca..745d0e013a33 100644 --- a/drivers/platform/x86/amd/pmf/core.c +++ b/drivers/platform/x86/amd/pmf/core.c @@ -429,18 +429,18 @@ static int amd_pmf_probe(struct platform_device *pdev) err = amd_smn_read(0, AMD_PMF_BASE_ADDR_LO, &val); if (err) { - dev_err(dev->dev, "error in reading from 0x%x\n", AMD_PMF_BASE_ADDR_LO); pci_dev_put(rdev); - return pcibios_err_to_errno(err); + return dev_err_probe(dev->dev, pcibios_err_to_errno(err), + "error in reading from 0x%x\n", AMD_PMF_BASE_ADDR_LO); } base_addr_lo = val & AMD_PMF_BASE_ADDR_HI_MASK; err = amd_smn_read(0, AMD_PMF_BASE_ADDR_HI, &val); if (err) { - dev_err(dev->dev, "error in reading from 0x%x\n", AMD_PMF_BASE_ADDR_HI); pci_dev_put(rdev); - return pcibios_err_to_errno(err); + return dev_err_probe(dev->dev, pcibios_err_to_errno(err), + "error in reading from 0x%x\n", AMD_PMF_BASE_ADDR_HI); } base_addr_hi = val & AMD_PMF_BASE_ADDR_LO_MASK; From ac4976a4f8709dc88ba3a4475e41b5682b2fe1d7 Mon Sep 17 00:00:00 2001 From: Shyam Sundar S K Date: Mon, 4 Nov 2024 11:18:28 +0530 Subject: [PATCH 46/69] MAINTAINERS: Change AMD PMF driver status to "Supported" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The AMD PMF driver is actively being developed, so the MAINTAINERS record should reflect "Supported" instead of "Maintained." Update the MAINTAINERS database to reflect this change. Reviewed-by: Mario Limonciello Signed-off-by: Shyam Sundar S K Link: https://lore.kernel.org/r/20241104054829.620858-3-Shyam-sundar.S-k@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index faf282e841e7..8afa5b0992b7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1132,7 +1132,7 @@ F: drivers/platform/x86/amd/pmc/ AMD PMF DRIVER M: Shyam Sundar S K L: platform-driver-x86@vger.kernel.org -S: Maintained +S: Supported F: Documentation/ABI/testing/sysfs-amd-pmf F: drivers/platform/x86/amd/pmf/ From ba6ad33d5c870d8b1d22388292c872ba4af98ea1 Mon Sep 17 00:00:00 2001 From: Shyam Sundar S K Date: Mon, 4 Nov 2024 11:18:29 +0530 Subject: [PATCH 47/69] platform/x86/amd/pmf: Switch to platform_get_resource() and devm_ioremap_resource() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use platform_get_resource() to fetch the memory resource instead of acpi_walk_resources() and devm_ioremap_resource() for mapping the resources. PS: We cannot use resource_size() here because it adds an extra byte to round off the size. In the case of PMF ResourceTemplate(), this rounding is already handled within the _CRS. Using resource_size() would increase the resource size by 1, causing a mismatch with the length field and leading to issues. Therefore, simply use end-start of the ACPI resource to obtain the actual length. Co-developed-by: Patil Rajesh Reddy Signed-off-by: Patil Rajesh Reddy Signed-off-by: Shyam Sundar S K Link: https://lore.kernel.org/r/20241104054829.620858-4-Shyam-sundar.S-k@amd.com [ij: added a cast to resource_size_t printing] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/pmf/Kconfig | 1 + drivers/platform/x86/amd/pmf/acpi.c | 48 +++++++++++---------------- drivers/platform/x86/amd/pmf/pmf.h | 6 ++-- drivers/platform/x86/amd/pmf/tee-if.c | 8 ++--- 4 files changed, 29 insertions(+), 34 deletions(-) diff --git a/drivers/platform/x86/amd/pmf/Kconfig b/drivers/platform/x86/amd/pmf/Kconfig index f4fa8bd8bda8..99d67cdbd91e 100644 --- a/drivers/platform/x86/amd/pmf/Kconfig +++ b/drivers/platform/x86/amd/pmf/Kconfig @@ -11,6 +11,7 @@ config AMD_PMF select ACPI_PLATFORM_PROFILE depends on TEE && AMDTEE depends on AMD_SFH_HID + depends on HAS_IOMEM help This driver provides support for the AMD Platform Management Framework. The goal is to enhance end user experience by making AMD PCs smarter, diff --git a/drivers/platform/x86/amd/pmf/acpi.c b/drivers/platform/x86/amd/pmf/acpi.c index d5b496433d69..1b9c7acf0ddf 100644 --- a/drivers/platform/x86/amd/pmf/acpi.c +++ b/drivers/platform/x86/amd/pmf/acpi.c @@ -433,37 +433,29 @@ int apmf_install_handler(struct amd_pmf_dev *pmf_dev) return 0; } -static acpi_status apmf_walk_resources(struct acpi_resource *res, void *data) -{ - struct amd_pmf_dev *dev = data; - - switch (res->type) { - case ACPI_RESOURCE_TYPE_ADDRESS64: - dev->policy_addr = res->data.address64.address.minimum; - dev->policy_sz = res->data.address64.address.address_length; - break; - case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: - dev->policy_addr = res->data.fixed_memory32.address; - dev->policy_sz = res->data.fixed_memory32.address_length; - break; - } - - if (!dev->policy_addr || dev->policy_sz > POLICY_BUF_MAX_SZ || dev->policy_sz == 0) { - pr_err("Incorrect Policy params, possibly a SBIOS bug\n"); - return AE_ERROR; - } - - return AE_OK; -} - int apmf_check_smart_pc(struct amd_pmf_dev *pmf_dev) { - acpi_handle ahandle = ACPI_HANDLE(pmf_dev->dev); - acpi_status status; + struct platform_device *pdev = to_platform_device(pmf_dev->dev); - status = acpi_walk_resources(ahandle, METHOD_NAME__CRS, apmf_walk_resources, pmf_dev); - if (ACPI_FAILURE(status)) { - dev_dbg(pmf_dev->dev, "acpi_walk_resources failed :%d\n", status); + pmf_dev->res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!pmf_dev->res) { + dev_dbg(pmf_dev->dev, "Failed to get I/O memory resource\n"); + return -EINVAL; + } + + pmf_dev->policy_addr = pmf_dev->res->start; + /* + * We cannot use resource_size() here because it adds an extra byte to round off the size. + * In the case of PMF ResourceTemplate(), this rounding is already handled within the _CRS. + * Using resource_size() would increase the resource size by 1, causing a mismatch with the + * length field and leading to issues. Therefore, simply use end-start of the ACPI resource + * to obtain the actual length. + */ + pmf_dev->policy_sz = pmf_dev->res->end - pmf_dev->res->start; + + if (!pmf_dev->policy_addr || pmf_dev->policy_sz > POLICY_BUF_MAX_SZ || + pmf_dev->policy_sz == 0) { + dev_err(pmf_dev->dev, "Incorrect policy params, possibly a SBIOS bug\n"); return -EINVAL; } diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h index 8ce8816da9c1..a79808fda1d8 100644 --- a/drivers/platform/x86/amd/pmf/pmf.h +++ b/drivers/platform/x86/amd/pmf/pmf.h @@ -13,6 +13,7 @@ #include #include +#include #include #define POLICY_BUF_MAX_SZ 0x4b000 @@ -355,19 +356,20 @@ struct amd_pmf_dev { /* Smart PC solution builder */ struct dentry *esbin; unsigned char *policy_buf; - u32 policy_sz; + resource_size_t policy_sz; struct tee_context *tee_ctx; struct tee_shm *fw_shm_pool; u32 session_id; void *shbuf; struct delayed_work pb_work; struct pmf_action_table *prev_data; - u64 policy_addr; + resource_size_t policy_addr; void __iomem *policy_base; bool smart_pc_enabled; u16 pmf_if_version; struct input_dev *pmf_idev; size_t mtable_size; + struct resource *res; }; struct apmf_sps_prop_granular_v2 { diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c index 19c27b6e4666..8c88769ea1d8 100644 --- a/drivers/platform/x86/amd/pmf/tee-if.c +++ b/drivers/platform/x86/amd/pmf/tee-if.c @@ -257,7 +257,7 @@ static int amd_pmf_invoke_cmd_init(struct amd_pmf_dev *dev) return -ENODEV; } - dev_dbg(dev->dev, "Policy Binary size: %u bytes\n", dev->policy_sz); + dev_dbg(dev->dev, "Policy Binary size: %llu bytes\n", (unsigned long long)dev->policy_sz); memset(dev->shbuf, 0, dev->policy_sz); ta_sm = dev->shbuf; in = &ta_sm->pmf_input.init_table; @@ -512,9 +512,9 @@ int amd_pmf_init_smart_pc(struct amd_pmf_dev *dev) if (ret) goto error; - dev->policy_base = devm_ioremap(dev->dev, dev->policy_addr, dev->policy_sz); - if (!dev->policy_base) { - ret = -ENOMEM; + dev->policy_base = devm_ioremap_resource(dev->dev, dev->res); + if (IS_ERR(dev->policy_base)) { + ret = PTR_ERR(dev->policy_base); goto error; } From 44ed58e57984d0fb26d1e267deb9d83a1a071dfe Mon Sep 17 00:00:00 2001 From: Lukas Bulwahn Date: Tue, 5 Nov 2024 16:28:13 +0100 Subject: [PATCH 48/69] MAINTAINERS: adjust file entry in INTEL TPMI DRIVER MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit df7f9acd8646 ("platform/x86: intel: Add 'intel' prefix to the modules automatically") renames tpmi.c to vsec_tpmi.c in drivers/platform/x86/intel/, but misses to adjust the INTEL TPMI DRIVER section, which is referring to this file. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a broken reference. Adjust the file entry to this file renaming. Signed-off-by: Lukas Bulwahn Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241105152813.60823-1-lukas.bulwahn@redhat.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 8afa5b0992b7..a888cc021f86 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11776,7 +11776,7 @@ M: Srinivas Pandruvada L: platform-driver-x86@vger.kernel.org S: Maintained F: Documentation/ABI/testing/debugfs-tpmi -F: drivers/platform/x86/intel/tpmi.c +F: drivers/platform/x86/intel/vsec_tpmi.c F: include/linux/intel_tpmi.h INTEL UNCORE FREQUENCY CONTROL From 01fbfcb3acbb2e4fd34bf36a87c75299a85a0cf9 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 4 Nov 2024 21:08:46 +0100 Subject: [PATCH 49/69] platform/x86: x86-android-tablets: Add get_i2c_adap_by_handle() helper MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add get_i2c_adap_by_handle() helper function, this is a preparation patch for adding support for getting i2c_adapter-s by PCI parent devname(). Suggested-by: Andy Shevchenko Signed-off-by: Hans de Goede Reviewed-by: Ilpo Järvinen Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241104200848.58693-2-hdegoede@redhat.com Signed-off-by: Ilpo Järvinen --- .../platform/x86/x86-android-tablets/core.c | 25 ++++++++++++------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c index 30dd845b543e..2848f651e00b 100644 --- a/drivers/platform/x86/x86-android-tablets/core.c +++ b/drivers/platform/x86/x86-android-tablets/core.c @@ -155,26 +155,33 @@ static struct gpiod_lookup_table * const *gpiod_lookup_tables; static const struct software_node *bat_swnode; static void (*exit_handler)(void); +static struct i2c_adapter * +get_i2c_adap_by_handle(const struct x86_i2c_client_info *client_info) +{ + acpi_handle handle; + acpi_status status; + + status = acpi_get_handle(NULL, client_info->adapter_path, &handle); + if (ACPI_FAILURE(status)) { + pr_err("Error could not get %s handle\n", client_info->adapter_path); + return NULL; + } + + return i2c_acpi_find_adapter_by_handle(handle); +} + static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info, int idx) { const struct x86_i2c_client_info *client_info = &dev_info->i2c_client_info[idx]; struct i2c_board_info board_info = client_info->board_info; struct i2c_adapter *adap; - acpi_handle handle; - acpi_status status; board_info.irq = x86_acpi_irq_helper_get(&client_info->irq_data); if (board_info.irq < 0) return board_info.irq; - status = acpi_get_handle(NULL, client_info->adapter_path, &handle); - if (ACPI_FAILURE(status)) { - pr_err("Error could not get %s handle\n", client_info->adapter_path); - return -ENODEV; - } - - adap = i2c_acpi_find_adapter_by_handle(handle); + adap = get_i2c_adap_by_handle(client_info); if (!adap) { pr_err("error could not get %s adapter\n", client_info->adapter_path); return -ENODEV; From 5b78e809f94840fa45173cd3e34bbe815c6865b4 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 4 Nov 2024 21:08:47 +0100 Subject: [PATCH 50/69] platform/x86: x86-android-tablets: Add support for getting i2c_adapter by PCI parent devname() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On the Vexia EDU ATLA 10 tablet, which ships with Android + a custom Linux (guadalinex) using the custom Android kernel the I2C controllers are not enumerated as ACPI devices as they typically are. Instead they are enumerated as PCI devices which do not have ACPI firmware nodes associated with them, so getting the i2c_adapter by the ACPI path of its firmware node does not work. Add support for getting the i2c_adapter by the devname() of its PCI parent instead. Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241104200848.58693-3-hdegoede@redhat.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- .../platform/x86/x86-android-tablets/Kconfig | 4 +- .../platform/x86/x86-android-tablets/core.c | 37 ++++++++++++++++++- .../x86-android-tablets/x86-android-tablets.h | 1 + 3 files changed, 40 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/x86-android-tablets/Kconfig b/drivers/platform/x86/x86-android-tablets/Kconfig index 88d9e8f2ff24..a67bddc43007 100644 --- a/drivers/platform/x86/x86-android-tablets/Kconfig +++ b/drivers/platform/x86/x86-android-tablets/Kconfig @@ -5,7 +5,9 @@ config X86_ANDROID_TABLETS tristate "X86 Android tablet support" - depends on I2C && SPI && SERIAL_DEV_BUS && ACPI && EFI && GPIOLIB && PMIC_OPREGION + depends on I2C && SPI && SERIAL_DEV_BUS + depends on GPIOLIB && PMIC_OPREGION + depends on ACPI && EFI && PCI select NEW_LEDS select LEDS_CLASS help diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c index 2848f651e00b..9551cdbac4fc 100644 --- a/drivers/platform/x86/x86-android-tablets/core.c +++ b/drivers/platform/x86/x86-android-tablets/core.c @@ -11,11 +11,13 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include #include #include #include #include +#include #include #include #include @@ -170,6 +172,35 @@ get_i2c_adap_by_handle(const struct x86_i2c_client_info *client_info) return i2c_acpi_find_adapter_by_handle(handle); } +static __init int match_parent(struct device *dev, const void *data) +{ + return dev->parent == data; +} + +static struct i2c_adapter * +get_i2c_adap_by_pci_parent(const struct x86_i2c_client_info *client_info) +{ + struct i2c_adapter *adap = NULL; + struct device *pdev, *adap_dev; + + pdev = bus_find_device_by_name(&pci_bus_type, NULL, client_info->adapter_path); + if (!pdev) { + pr_err("Error could not find %s PCI device\n", client_info->adapter_path); + return NULL; + } + + adap_dev = bus_find_device(&i2c_bus_type, NULL, pdev, match_parent); + if (adap_dev) { + adap = i2c_verify_adapter(adap_dev); + if (!adap) + put_device(adap_dev); + } + + put_device(pdev); + + return adap; +} + static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info, int idx) { @@ -181,7 +212,11 @@ static __init int x86_instantiate_i2c_client(const struct x86_dev_info *dev_info if (board_info.irq < 0) return board_info.irq; - adap = get_i2c_adap_by_handle(client_info); + if (dev_info->use_pci_devname) + adap = get_i2c_adap_by_pci_parent(client_info); + else + adap = get_i2c_adap_by_handle(client_info); + if (!adap) { pr_err("error could not get %s adapter\n", client_info->adapter_path); return -ENODEV; diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h index 5517e438c7b6..d26a4792eb0e 100644 --- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h +++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h @@ -91,6 +91,7 @@ struct x86_dev_info { int gpio_button_count; int (*init)(struct device *dev); void (*exit)(void); + bool use_pci_devname; }; int x86_android_tablet_get_gpiod(const char *chip, int pin, const char *con_id, From 06f876def3469b44737df6c2efe6dd811838c9e7 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 4 Nov 2024 21:08:48 +0100 Subject: [PATCH 51/69] platform/x86: x86-android-tablets: Add support for Vexia EDU ATLA 10 tablet MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add support for the Vexia EDU ATLA 10 tablet, Android 4.2/4.4 + Guadalinex Ubuntu tablet distributed to schools in the Spanish Andalucía region. Besides the usual broken DSDT issues this tablet is special because all its LPSS island peripherals are enumerated as PCI devices rather then as ACPI devices as they typically are. At the same time there are disabled (_STA=0) ACPI devices for the peripherals and child ACPI devices for e.g. attached I2C/SDIO devices are children of these disabled ACPI devices and thus will not be used by Linux since the parent is disabled. So besides the usual manual i2c-client instantiation for accel/touchscreen this tablet also requires manual i2c-client instantiation for the codec and for the PMIC. Also it seems the mainboard was designed for Windows not Android, so it has an I2C attached embedded controller instead of allowing direct access to the charger + fuel-gauge chips as is usual with Android boards. Normally when there is an embedded controller, there also is ACPI battery support, but since this shipped with Android that is missing and Linux needs to have a power_supply class driver talking directly to the EC. Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241104200848.58693-4-hdegoede@redhat.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- .../platform/x86/x86-android-tablets/dmi.c | 10 ++ .../platform/x86/x86-android-tablets/other.c | 163 ++++++++++++++++++ .../x86-android-tablets/x86-android-tablets.h | 1 + 3 files changed, 174 insertions(+) diff --git a/drivers/platform/x86/x86-android-tablets/dmi.c b/drivers/platform/x86/x86-android-tablets/dmi.c index 17f6da96aa01..3e5fa3b6e2fd 100644 --- a/drivers/platform/x86/x86-android-tablets/dmi.c +++ b/drivers/platform/x86/x86-android-tablets/dmi.c @@ -179,6 +179,16 @@ const struct dmi_system_id x86_android_tablet_ids[] __initconst = { }, .driver_data = (void *)&peaq_c1010_info, }, + { + /* Vexia Edu Atla 10 tablet 9V version */ + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), + DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), + /* Above strings are too generic, also match on BIOS date */ + DMI_MATCH(DMI_BIOS_DATE, "08/25/2014"), + }, + .driver_data = (void *)&vexia_edu_atla10_info, + }, { /* Whitelabel (sold as various brands) TM800A550L */ .matches = { diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c index 7db8aa58b907..725948044da4 100644 --- a/drivers/platform/x86/x86-android-tablets/other.c +++ b/drivers/platform/x86/x86-android-tablets/other.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -597,6 +598,168 @@ const struct x86_dev_info whitelabel_tm800a550l_info __initconst = { .gpiod_lookup_tables = whitelabel_tm800a550l_gpios, }; +/* + * Vexia EDU ATLA 10 tablet, Android 4.2 / 4.4 + Guadalinex Ubuntu tablet + * distributed to schools in the Spanish Andalucía region. + */ +const char * const crystal_cove_pwrsrc_psy[] = { "crystal_cove_pwrsrc" }; + +static const struct property_entry vexia_edu_atla10_ulpmc_props[] = { + PROPERTY_ENTRY_STRING_ARRAY("supplied-from", crystal_cove_pwrsrc_psy), + { } +}; + +const struct software_node vexia_edu_atla10_ulpmc_node = { + .properties = vexia_edu_atla10_ulpmc_props, +}; + +static const char * const vexia_edu_atla10_accel_mount_matrix[] = { + "0", "-1", "0", + "1", "0", "0", + "0", "0", "1" +}; + +static const struct property_entry vexia_edu_atla10_accel_props[] = { + PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", vexia_edu_atla10_accel_mount_matrix), + { } +}; + +static const struct software_node vexia_edu_atla10_accel_node = { + .properties = vexia_edu_atla10_accel_props, +}; + +static const struct property_entry vexia_edu_atla10_touchscreen_props[] = { + PROPERTY_ENTRY_U32("hid-descr-addr", 0x0000), + PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 120), + { } +}; + +static const struct software_node vexia_edu_atla10_touchscreen_node = { + .properties = vexia_edu_atla10_touchscreen_props, +}; + +static const struct property_entry vexia_edu_atla10_pmic_props[] = { + PROPERTY_ENTRY_BOOL("linux,register-pwrsrc-power_supply"), + { } +}; + +static const struct software_node vexia_edu_atla10_pmic_node = { + .properties = vexia_edu_atla10_pmic_props, +}; + +static const struct x86_i2c_client_info vexia_edu_atla10_i2c_clients[] __initconst = { + { + /* I2C attached embedded controller, used to access fuel-gauge */ + .board_info = { + .type = "vexia_atla10_ec", + .addr = 0x76, + .dev_name = "ulpmc", + .swnode = &vexia_edu_atla10_ulpmc_node, + }, + .adapter_path = "0000:00:18.1", + }, { + /* RT5642 audio codec */ + .board_info = { + .type = "rt5640", + .addr = 0x1c, + .dev_name = "rt5640", + }, + .adapter_path = "0000:00:18.2", + .irq_data = { + .type = X86_ACPI_IRQ_TYPE_GPIOINT, + .chip = "INT33FC:02", + .index = 4, + .trigger = ACPI_EDGE_SENSITIVE, + .polarity = ACPI_ACTIVE_HIGH, + .con_id = "rt5640_irq", + }, + }, { + /* kxtj21009 accelerometer */ + .board_info = { + .type = "kxtj21009", + .addr = 0x0f, + .dev_name = "kxtj21009", + .swnode = &vexia_edu_atla10_accel_node, + }, + .adapter_path = "0000:00:18.5", + }, { + /* FT5416DQ9 touchscreen controller */ + .board_info = { + .type = "hid-over-i2c", + .addr = 0x38, + .dev_name = "FTSC1000", + .swnode = &vexia_edu_atla10_touchscreen_node, + }, + .adapter_path = "0000:00:18.6", + .irq_data = { + .type = X86_ACPI_IRQ_TYPE_APIC, + .index = 0x45, + .trigger = ACPI_LEVEL_SENSITIVE, + .polarity = ACPI_ACTIVE_HIGH, + }, + }, { + /* Crystal Cove PMIC */ + .board_info = { + .type = "intel_soc_pmic_crc", + .addr = 0x6e, + .dev_name = "intel_soc_pmic_crc", + .swnode = &vexia_edu_atla10_pmic_node, + }, + .adapter_path = "0000:00:18.7", + .irq_data = { + .type = X86_ACPI_IRQ_TYPE_APIC, + .index = 0x43, + .trigger = ACPI_LEVEL_SENSITIVE, + .polarity = ACPI_ACTIVE_HIGH, + }, + } +}; + +static struct gpiod_lookup_table vexia_edu_atla10_ft5416_gpios = { + .dev_id = "i2c-FTSC1000", + .table = { + GPIO_LOOKUP("INT33FC:00", 60, "reset", GPIO_ACTIVE_LOW), + { } + }, +}; + +static struct gpiod_lookup_table * const vexia_edu_atla10_gpios[] = { + &vexia_edu_atla10_ft5416_gpios, + NULL +}; + +static int __init vexia_edu_atla10_init(struct device *dev) +{ + struct pci_dev *pdev; + int ret; + + /* Enable the Wifi module by setting the wifi_enable pin to 1 */ + ret = x86_android_tablet_get_gpiod("INT33FC:02", 20, "wifi_enable", + false, GPIOD_OUT_HIGH, NULL); + if (ret) + return ret; + + /* Reprobe the SDIO controller to enumerate the now enabled Wifi module */ + pdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0x11, 0)); + if (!pdev) + return -EPROBE_DEFER; + + ret = device_reprobe(&pdev->dev); + if (ret) + pci_warn(pdev, "Reprobing error: %d\n", ret); + + pci_dev_put(pdev); + return 0; +} + +const struct x86_dev_info vexia_edu_atla10_info __initconst = { + .i2c_client_info = vexia_edu_atla10_i2c_clients, + .i2c_client_count = ARRAY_SIZE(vexia_edu_atla10_i2c_clients), + .gpiod_lookup_tables = vexia_edu_atla10_gpios, + .init = vexia_edu_atla10_init, + .use_pci_devname = true, +}; + /* * The firmware node for ktd2026 on Xaomi pad2. It composed of a RGB LED node * with three subnodes for each color (B/G/R). The RGB LED node is named diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h index d26a4792eb0e..0fc7e8cff672 100644 --- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h +++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h @@ -120,6 +120,7 @@ extern const struct x86_dev_info nextbook_ares8_info; extern const struct x86_dev_info nextbook_ares8a_info; extern const struct x86_dev_info peaq_c1010_info; extern const struct x86_dev_info whitelabel_tm800a550l_info; +extern const struct x86_dev_info vexia_edu_atla10_info; extern const struct x86_dev_info xiaomi_mipad2_info; extern const struct dmi_system_id x86_android_tablet_ids[]; From a8e03d821d6a72a72fdc0ea1809a21e815a3fd19 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 11 Nov 2024 10:54:56 -0800 Subject: [PATCH 52/69] MAINTAINERS: Update ISHTP ECLITE maintainer entry MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sumesh K Naduvalath doesn't work for Intel anymore. Adding myself as maintainer as this is related to Intel Integrated Sensor Hub, which I maintain. Signed-off-by: Srinivas Pandruvada Link: https://lore.kernel.org/r/20241111185456.331071-1-srinivas.pandruvada@linux.intel.com Signed-off-by: Ilpo Järvinen --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index a888cc021f86..b6b5bf3bd868 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11553,7 +11553,7 @@ F: Documentation/admin-guide/media/ipu6-isys.rst F: drivers/media/pci/intel/ipu6/ INTEL ISHTP ECLITE DRIVER -M: Sumesh K Naduvalath +M: Srinivas Pandruvada L: platform-driver-x86@vger.kernel.org S: Supported F: drivers/platform/x86/intel/ishtp_eclite.c From 4ceb681f1822819f78b747ddc189479fead43be2 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Thu, 7 Nov 2024 11:35:43 +0000 Subject: [PATCH 53/69] platform/x86: hp: hp-bioscfg: remove redundant if statement MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The if statement performs the same action if the strcmp result is true or false since there is identical code on both branches. The if statement is redundant and can be replaced with just one call to sysfs_remove_group. Signed-off-by: Colin Ian King Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20241107113543.17137-1-colin.i.king@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- .../platform/x86/hp/hp-bioscfg/passwdobj-attributes.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/platform/x86/hp/hp-bioscfg/passwdobj-attributes.c b/drivers/platform/x86/hp/hp-bioscfg/passwdobj-attributes.c index 35936c05e45b..187b372123ed 100644 --- a/drivers/platform/x86/hp/hp-bioscfg/passwdobj-attributes.c +++ b/drivers/platform/x86/hp/hp-bioscfg/passwdobj-attributes.c @@ -531,14 +531,9 @@ void hp_exit_password_attributes(void) struct kobject *attr_name_kobj = bioscfg_drv.password_data[instance_id].attr_name_kobj; - if (attr_name_kobj) { - if (!strcmp(attr_name_kobj->name, SETUP_PASSWD)) - sysfs_remove_group(attr_name_kobj, - &password_attr_group); - else - sysfs_remove_group(attr_name_kobj, - &password_attr_group); - } + if (attr_name_kobj) + sysfs_remove_group(attr_name_kobj, + &password_attr_group); } bioscfg_drv.password_instances_count = 0; kfree(bioscfg_drv.password_data); From 895085ec3f2ed7a26389943729e2904df1f88dc0 Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Thu, 7 Nov 2024 01:38:10 +0100 Subject: [PATCH 54/69] platform/x86: asus-wmi: Fix inconsistent use of thermal policies MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When changing the thermal policy using the platform profile API, a Vivobook thermal policy is stored in throttle_thermal_policy_mode. However everywhere else a normal thermal policy is stored inside this variable, potentially confusing the platform profile. Fix this by always storing normal thermal policy values inside throttle_thermal_policy_mode and only do the conversion when writing the thermal policy to hardware. This also fixes the order in which throttle_thermal_policy_switch_next() steps through the thermal modes on Vivobook machines. Tested-by: Casey G Bowman Fixes: bcbfcebda2cb ("platform/x86: asus-wmi: add support for vivobook fan profiles") Signed-off-by: Armin Wolf Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20241107003811.615574-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/asus-wmi.c | 64 +++++++++++---------------------- 1 file changed, 21 insertions(+), 43 deletions(-) diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 2ccc23b259d3..88cd1f39f22e 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -3696,10 +3696,28 @@ static int asus_wmi_custom_fan_curve_init(struct asus_wmi *asus) /* Throttle thermal policy ****************************************************/ static int throttle_thermal_policy_write(struct asus_wmi *asus) { - u8 value = asus->throttle_thermal_policy_mode; u32 retval; + u8 value; int err; + if (asus->throttle_thermal_policy_dev == ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO) { + switch (asus->throttle_thermal_policy_mode) { + case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT: + value = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO; + break; + case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST: + value = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO; + break; + case ASUS_THROTTLE_THERMAL_POLICY_SILENT: + value = ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO; + break; + default: + return -EINVAL; + } + } else { + value = asus->throttle_thermal_policy_mode; + } + err = asus_wmi_set_devstate(asus->throttle_thermal_policy_dev, value, &retval); @@ -3804,46 +3822,6 @@ static ssize_t throttle_thermal_policy_store(struct device *dev, static DEVICE_ATTR_RW(throttle_thermal_policy); /* Platform profile ***********************************************************/ -static int asus_wmi_platform_profile_to_vivo(struct asus_wmi *asus, int mode) -{ - bool vivo; - - vivo = asus->throttle_thermal_policy_dev == ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO; - - if (vivo) { - switch (mode) { - case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT: - return ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO; - case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST: - return ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO; - case ASUS_THROTTLE_THERMAL_POLICY_SILENT: - return ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO; - } - } - - return mode; -} - -static int asus_wmi_platform_profile_mode_from_vivo(struct asus_wmi *asus, int mode) -{ - bool vivo; - - vivo = asus->throttle_thermal_policy_dev == ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_VIVO; - - if (vivo) { - switch (mode) { - case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT_VIVO: - return ASUS_THROTTLE_THERMAL_POLICY_DEFAULT; - case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST_VIVO: - return ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST; - case ASUS_THROTTLE_THERMAL_POLICY_SILENT_VIVO: - return ASUS_THROTTLE_THERMAL_POLICY_SILENT; - } - } - - return mode; -} - static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof, enum platform_profile_option *profile) { @@ -3853,7 +3831,7 @@ static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof, asus = container_of(pprof, struct asus_wmi, platform_profile_handler); tp = asus->throttle_thermal_policy_mode; - switch (asus_wmi_platform_profile_mode_from_vivo(asus, tp)) { + switch (tp) { case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT: *profile = PLATFORM_PROFILE_BALANCED; break; @@ -3892,7 +3870,7 @@ static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof, return -EOPNOTSUPP; } - asus->throttle_thermal_policy_mode = asus_wmi_platform_profile_to_vivo(asus, tp); + asus->throttle_thermal_policy_mode = tp; return throttle_thermal_policy_write(asus); } From b0955ce555478e24ed34c7d14f62fdf9c07b15cb Mon Sep 17 00:00:00 2001 From: Armin Wolf Date: Thu, 7 Nov 2024 01:38:11 +0100 Subject: [PATCH 55/69] platform/x86: asus-wmi: Use platform_profile_cycle() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Replace throttle_thermal_policy_switch_next() with platform_profile_cycle() to reduce code duplication and avoid a potential race condition with the platform profile handler. Suggested-by: Hans de Goede Signed-off-by: Armin Wolf Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20241107003811.615574-3-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/asus-wmi.c | 24 +----------------------- 1 file changed, 1 insertion(+), 23 deletions(-) diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 88cd1f39f22e..f15c7ce37b25 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -3755,28 +3755,6 @@ static int throttle_thermal_policy_set_default(struct asus_wmi *asus) return throttle_thermal_policy_write(asus); } -static int throttle_thermal_policy_switch_next(struct asus_wmi *asus) -{ - u8 new_mode = asus->throttle_thermal_policy_mode + 1; - int err; - - if (new_mode > PLATFORM_PROFILE_MAX) - new_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT; - - asus->throttle_thermal_policy_mode = new_mode; - err = throttle_thermal_policy_write(asus); - if (err) - return err; - - /* - * Ensure that platform_profile updates userspace with the change to ensure - * that platform_profile and throttle_thermal_policy_mode are in sync. - */ - platform_profile_notify(); - - return 0; -} - static ssize_t throttle_thermal_policy_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -4291,7 +4269,7 @@ static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus) if (asus->fan_boost_mode_available) fan_boost_mode_switch_next(asus); if (asus->throttle_thermal_policy_dev) - throttle_thermal_policy_switch_next(asus); + platform_profile_cycle(); return; } From 0d5e2d9b8fcb58116df2a201c54af60c1ac50bf2 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 28 Oct 2024 16:35:46 +0000 Subject: [PATCH 56/69] platform/x86/amd/hsmp: mark hsmp_msg_desc_table[] as maybe_unused MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After the file got split, there are now W=1 warnings for users that include it without referencing hsmp_msg_desc_table: In file included from arch/x86/include/asm/amd_hsmp.h:6, from drivers/platform/x86/amd/hsmp/plat.c:12: arch/x86/include/uapi/asm/amd_hsmp.h:91:35: error: 'hsmp_msg_desc_table' defined but not used [-Werror=unused-const-variable=] 91 | static const struct hsmp_msg_desc hsmp_msg_desc_table[] = { | ^~~~~~~~~~~~~~~~~~~ Mark it as __attribute__((maybe_unused)) to shut up the warning but keep it in the file in case it is used from userland. The __maybe_unused shorthand unfortunately isn't available in userspace, so this has to be the long form. While it is not envisioned a normal userspace program could benefit from having this table as part of UAPI, it seems there is non-zero chance this array is used by some userspace tests so it is retained for now (see the Link below). Fixes: e47c018a0ee6 ("platform/x86/amd/hsmp: Move platform device specific code to plat.c") Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/platform-driver-x86/CAPhsuW7mDRswhVjYf+4iinO+sph_rQ1JykEof+apoiSOVwOXXQ@mail.gmail.com/ Link: https://lore.kernel.org/r/20241028163553.2452486-1-arnd@kernel.org Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- arch/x86/include/uapi/asm/amd_hsmp.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/uapi/asm/amd_hsmp.h b/arch/x86/include/uapi/asm/amd_hsmp.h index e5d182c7373c..4a7cace06204 100644 --- a/arch/x86/include/uapi/asm/amd_hsmp.h +++ b/arch/x86/include/uapi/asm/amd_hsmp.h @@ -88,7 +88,8 @@ struct hsmp_msg_desc { * * Not supported messages would return -ENOMSG. */ -static const struct hsmp_msg_desc hsmp_msg_desc_table[] = { +static const struct hsmp_msg_desc hsmp_msg_desc_table[] + __attribute__((unused)) = { /* RESERVED */ {0, 0, HSMP_RSVD}, From 75a978bd604b5916d3e4430d4e6e5601162e14eb Mon Sep 17 00:00:00 2001 From: Cole Stowell Date: Thu, 7 Nov 2024 20:59:34 +0000 Subject: [PATCH 57/69] intel-hid: fix volume buttons on Thinkpad X12 Detachable Tablet Gen 1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Volume buttons on Lenovo Thinkpad X12 Detachable Tablet Gen 1 did not send any input events when pressed. When loading intel-hid with the 5 Button Array explicitly enabled, the buttons functioned normally. Adds the X12 Detachable Tablet Gen 1 to the `button_array_table`. However, the driver is unable to call INTEL_HID_DSM_BTNE_FN and prints the warning "failed to set button capability" when attempting to enable or disable the 5 Button Array. The warning should be harmless and adding more special handling to avoid it is not worth it. Co-developed-by: Mary Strodl Signed-off-by: Mary Strodl Signed-off-by: Cole Stowell Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20241107205908.69279-1-cole@stowell.pro Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/hid.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c index 97174834dc31..927a2993f616 100644 --- a/drivers/platform/x86/intel/hid.c +++ b/drivers/platform/x86/intel/hid.c @@ -118,6 +118,13 @@ static const struct dmi_system_id button_array_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x2 Detachable"), }, }, + { + .ident = "Lenovo ThinkPad X1 Tablet Gen 1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_FAMILY, "ThinkPad X12 Detachable Gen 1"), + }, + }, { .ident = "Lenovo ThinkPad X1 Tablet Gen 2", .matches = { From 5a67c0d1c8bdcdba5dff49cfbf0d4c453b827a9d Mon Sep 17 00:00:00 2001 From: Basavaraj Natikar Date: Tue, 12 Nov 2024 22:33:06 +0530 Subject: [PATCH 58/69] platform/x86/amd: amd_3d_vcache: Add AMD 3D V-Cache optimizer driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit AMD X3D processors, also known as AMD 3D V-Cache, feature dual Core Complex Dies (CCDs) and enlarged L3 cache, enabling dynamic mode switching between Frequency and Cache modes. To optimize performance, implement the AMD 3D V-Cache Optimizer, which allows selecting either: Frequency mode: cores within the faster CCD are prioritized before those in the slower CCD. Cache mode: cores within the larger L3 CCD are prioritized before those in the smaller L3 CCD. Co-developed-by: Perry Yuan Signed-off-by: Perry Yuan Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Reviewed-by: Shyam Sundar S K Reviewed-by: Armin Wolf Signed-off-by: Basavaraj Natikar Link: https://lore.kernel.org/r/20241112170307.3745777-2-Basavaraj.Natikar@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- MAINTAINERS | 7 + drivers/platform/x86/amd/Kconfig | 12 ++ drivers/platform/x86/amd/Makefile | 2 + drivers/platform/x86/amd/x3d_vcache.c | 176 ++++++++++++++++++++++++++ 4 files changed, 197 insertions(+) create mode 100644 drivers/platform/x86/amd/x3d_vcache.c diff --git a/MAINTAINERS b/MAINTAINERS index b6b5bf3bd868..a70ac7c2cd81 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -973,6 +973,13 @@ Q: https://patchwork.kernel.org/project/linux-rdma/list/ F: drivers/infiniband/hw/efa/ F: include/uapi/rdma/efa-abi.h +AMD 3D V-CACHE PERFORMANCE OPTIMIZER DRIVER +M: Basavaraj Natikar +R: Mario Limonciello +L: platform-driver-x86@vger.kernel.org +S: Supported +F: drivers/platform/x86/amd/x3d_vcache.c + AMD ADDRESS TRANSLATION LIBRARY (ATL) M: Yazen Ghannam L: linux-edac@vger.kernel.org diff --git a/drivers/platform/x86/amd/Kconfig b/drivers/platform/x86/amd/Kconfig index 2c671cc17d63..c3e086ea64fc 100644 --- a/drivers/platform/x86/amd/Kconfig +++ b/drivers/platform/x86/amd/Kconfig @@ -7,6 +7,18 @@ source "drivers/platform/x86/amd/hsmp/Kconfig" source "drivers/platform/x86/amd/pmf/Kconfig" source "drivers/platform/x86/amd/pmc/Kconfig" +config AMD_3D_VCACHE + tristate "AMD 3D V-Cache Performance Optimizer Driver" + depends on X86_64 && ACPI + help + The driver provides a sysfs interface, enabling the setting of a bias + that alters CPU core reordering. This bias prefers cores with higher + frequencies or larger L3 caches on processors supporting AMD 3D V-Cache + technology. + + If you choose to compile this driver as a module the module will be + called amd_3d_vcache. + config AMD_WBRF bool "AMD Wifi RF Band mitigations (WBRF)" depends on ACPI diff --git a/drivers/platform/x86/amd/Makefile b/drivers/platform/x86/amd/Makefile index f0b2fe81c685..56f62fc9c97b 100644 --- a/drivers/platform/x86/amd/Makefile +++ b/drivers/platform/x86/amd/Makefile @@ -4,6 +4,8 @@ # AMD x86 Platform-Specific Drivers # +obj-$(CONFIG_AMD_3D_VCACHE) += amd_3d_vcache.o +amd_3d_vcache-objs := x3d_vcache.o obj-$(CONFIG_AMD_PMC) += pmc/ obj-$(CONFIG_AMD_HSMP) += hsmp/ obj-$(CONFIG_AMD_PMF) += pmf/ diff --git a/drivers/platform/x86/amd/x3d_vcache.c b/drivers/platform/x86/amd/x3d_vcache.c new file mode 100644 index 000000000000..0f6d3c54d879 --- /dev/null +++ b/drivers/platform/x86/amd/x3d_vcache.c @@ -0,0 +1,176 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * AMD 3D V-Cache Performance Optimizer Driver + * + * Copyright (c) 2024, Advanced Micro Devices, Inc. + * All Rights Reserved. + * + * Authors: Basavaraj Natikar + * Perry Yuan + * Mario Limonciello + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static char *x3d_mode = "frequency"; +module_param(x3d_mode, charp, 0); +MODULE_PARM_DESC(x3d_mode, "Initial 3D-VCache mode; 'frequency' (default) or 'cache'"); + +#define DSM_REVISION_ID 0 +#define DSM_SET_X3D_MODE 1 + +static guid_t x3d_guid = GUID_INIT(0xdff8e55f, 0xbcfd, 0x46fb, 0xba, 0x0a, + 0xef, 0xd0, 0x45, 0x0f, 0x34, 0xee); + +enum amd_x3d_mode_type { + MODE_INDEX_FREQ, + MODE_INDEX_CACHE, +}; + +static const char * const amd_x3d_mode_strings[] = { + [MODE_INDEX_FREQ] = "frequency", + [MODE_INDEX_CACHE] = "cache", +}; + +struct amd_x3d_dev { + struct device *dev; + acpi_handle ahandle; + /* To protect x3d mode setting */ + struct mutex lock; + enum amd_x3d_mode_type curr_mode; +}; + +static int amd_x3d_get_mode(struct amd_x3d_dev *data) +{ + guard(mutex)(&data->lock); + + return data->curr_mode; +} + +static int amd_x3d_mode_switch(struct amd_x3d_dev *data, int new_state) +{ + union acpi_object *out, argv; + + guard(mutex)(&data->lock); + argv.type = ACPI_TYPE_INTEGER; + argv.integer.value = new_state; + + out = acpi_evaluate_dsm(data->ahandle, &x3d_guid, DSM_REVISION_ID, + DSM_SET_X3D_MODE, &argv); + if (!out) { + dev_err(data->dev, "failed to evaluate _DSM\n"); + return -EINVAL; + } + + data->curr_mode = new_state; + + kfree(out); + + return 0; +} + +static ssize_t amd_x3d_mode_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct amd_x3d_dev *data = dev_get_drvdata(dev); + int ret; + + ret = sysfs_match_string(amd_x3d_mode_strings, buf); + if (ret < 0) + return ret; + + ret = amd_x3d_mode_switch(data, ret); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t amd_x3d_mode_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct amd_x3d_dev *data = dev_get_drvdata(dev); + int mode = amd_x3d_get_mode(data); + + return sysfs_emit(buf, "%s\n", amd_x3d_mode_strings[mode]); +} +static DEVICE_ATTR_RW(amd_x3d_mode); + +static struct attribute *amd_x3d_attrs[] = { + &dev_attr_amd_x3d_mode.attr, + NULL +}; +ATTRIBUTE_GROUPS(amd_x3d); + +static int amd_x3d_resume_handler(struct device *dev) +{ + struct amd_x3d_dev *data = dev_get_drvdata(dev); + int ret = amd_x3d_get_mode(data); + + return amd_x3d_mode_switch(data, ret); +} + +static DEFINE_SIMPLE_DEV_PM_OPS(amd_x3d_pm, NULL, amd_x3d_resume_handler); + +static const struct acpi_device_id amd_x3d_acpi_ids[] = { + {"AMDI0101"}, + { }, +}; +MODULE_DEVICE_TABLE(acpi, amd_x3d_acpi_ids); + +static int amd_x3d_probe(struct platform_device *pdev) +{ + struct amd_x3d_dev *data; + acpi_handle handle; + int ret; + + handle = ACPI_HANDLE(&pdev->dev); + if (!handle) + return -ENODEV; + + if (!acpi_check_dsm(handle, &x3d_guid, DSM_REVISION_ID, BIT(DSM_SET_X3D_MODE))) + return -ENODEV; + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->dev = &pdev->dev; + + ret = devm_mutex_init(data->dev, &data->lock); + if (ret) + return ret; + + data->ahandle = handle; + platform_set_drvdata(pdev, data); + + ret = match_string(amd_x3d_mode_strings, ARRAY_SIZE(amd_x3d_mode_strings), x3d_mode); + if (ret < 0) + return dev_err_probe(&pdev->dev, -EINVAL, "invalid mode %s\n", x3d_mode); + + return amd_x3d_mode_switch(data, ret); +} + +static struct platform_driver amd_3d_vcache_driver = { + .driver = { + .name = "amd_x3d_vcache", + .dev_groups = amd_x3d_groups, + .acpi_match_table = amd_x3d_acpi_ids, + .pm = pm_sleep_ptr(&amd_x3d_pm), + }, + .probe = amd_x3d_probe, +}; +module_platform_driver(amd_3d_vcache_driver); + +MODULE_DESCRIPTION("AMD 3D V-Cache Performance Optimizer Driver"); +MODULE_LICENSE("GPL"); From bd17863a708692bbd7a265212daf8a3aa4a3d0b7 Mon Sep 17 00:00:00 2001 From: Basavaraj Natikar Date: Tue, 12 Nov 2024 22:33:07 +0530 Subject: [PATCH 59/69] platform/x86/amd: amd_3d_vcache: Add sysfs ABI documentation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add documentation for the amd_3d_vcache sysfs bus platform driver interface so that userspace applications can use it to change mode preferences, either frequency or cache. Co-developed-by: Perry Yuan Signed-off-by: Perry Yuan Co-developed-by: Mario Limonciello Signed-off-by: Mario Limonciello Reviewed-by: Shyam Sundar S K Reviewed-by: Armin Wolf Reviewed-by: Ilpo Järvinen Signed-off-by: Basavaraj Natikar Link: https://lore.kernel.org/r/20241112170307.3745777-3-Basavaraj.Natikar@amd.com Signed-off-by: Ilpo Järvinen --- .../sysfs-bus-platform-drivers-amd_x3d_vcache | 12 ++++++++++++ MAINTAINERS | 1 + 2 files changed, 13 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache diff --git a/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache b/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache new file mode 100644 index 000000000000..ac3431736f5c --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache @@ -0,0 +1,12 @@ +What: /sys/bus/platform/drivers/amd_x3d_vcache/AMDI0101:00/amd_x3d_mode +Date: November 2024 +KernelVersion: 6.13 +Contact: Basavaraj Natikar +Description: (RW) AMD 3D V-Cache optimizer allows users to switch CPU core + rankings dynamically. + + This file switches between these two modes: + - "frequency" cores within the faster CCD are prioritized before + those in the slower CCD. + - "cache" cores within the larger L3 CCD are prioritized before + those in the smaller L3 CCD. diff --git a/MAINTAINERS b/MAINTAINERS index a70ac7c2cd81..473ef7edd28e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -978,6 +978,7 @@ M: Basavaraj Natikar R: Mario Limonciello L: platform-driver-x86@vger.kernel.org S: Supported +F: Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache F: drivers/platform/x86/amd/x3d_vcache.c AMD ADDRESS TRANSLATION LIBRARY (ATL) From 996b318e6fce255035efd555837d1250433bb0e7 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Tue, 12 Nov 2024 12:04:49 +0000 Subject: [PATCH 60/69] platform/x86/amd/hsmp: Add new error code and error logs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Firmware is updated to send HSMP_ERR_PREREQ_NOT_SATISFIED(0xFD) and HSMP_ERR_SMU_BUSY(0xFC) error codes. Add them here. Add error logs to make it easy to understand the failure reason for different error conditions. Replace pr_err() with dev_err() to identify the driver printing the error. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Link: https://lore.kernel.org/r/20241112120450.2407125-1-suma.hegde@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/hsmp.c | 34 ++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 10 deletions(-) diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index 82d8ba2e1204..ce91b2cefca2 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -7,8 +7,6 @@ * This file provides a device implementation for HSMP interface */ -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - #include #include @@ -25,6 +23,8 @@ #define HSMP_STATUS_OK 0x01 #define HSMP_ERR_INVALID_MSG 0xFE #define HSMP_ERR_INVALID_INPUT 0xFF +#define HSMP_ERR_PREREQ_NOT_SATISFIED 0xFD +#define HSMP_ERR_SMU_BUSY 0xFC /* Timeout in millsec */ #define HSMP_MSG_TIMEOUT 100 @@ -61,7 +61,7 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms mbox_status = HSMP_STATUS_NOT_READY; ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_resp_off, &mbox_status, HSMP_WR); if (ret) { - pr_err("Error %d clearing mailbox status register\n", ret); + dev_err(sock->dev, "Error %d clearing mailbox status register\n", ret); return ret; } @@ -71,7 +71,7 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_arg_off + (index << 2), &msg->args[index], HSMP_WR); if (ret) { - pr_err("Error %d writing message argument %d\n", ret, index); + dev_err(sock->dev, "Error %d writing message argument %d\n", ret, index); return ret; } index++; @@ -80,7 +80,7 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms /* Write the message ID which starts the operation */ ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_id_off, &msg->msg_id, HSMP_WR); if (ret) { - pr_err("Error %d writing message ID %u\n", ret, msg->msg_id); + dev_err(sock->dev, "Error %d writing message ID %u\n", ret, msg->msg_id); return ret; } @@ -97,7 +97,7 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms while (time_before(jiffies, timeout)) { ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_resp_off, &mbox_status, HSMP_RD); if (ret) { - pr_err("Error %d reading mailbox status\n", ret); + dev_err(sock->dev, "Error %d reading mailbox status\n", ret); return ret; } @@ -110,14 +110,28 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms } if (unlikely(mbox_status == HSMP_STATUS_NOT_READY)) { + dev_err(sock->dev, "Message ID 0x%X failure : SMU tmeout (status = 0x%X)\n", + msg->msg_id, mbox_status); return -ETIMEDOUT; } else if (unlikely(mbox_status == HSMP_ERR_INVALID_MSG)) { + dev_err(sock->dev, "Message ID 0x%X failure : Invalid message (status = 0x%X)\n", + msg->msg_id, mbox_status); return -ENOMSG; } else if (unlikely(mbox_status == HSMP_ERR_INVALID_INPUT)) { + dev_err(sock->dev, "Message ID 0x%X failure : Invalid arguments (status = 0x%X)\n", + msg->msg_id, mbox_status); return -EINVAL; + } else if (unlikely(mbox_status == HSMP_ERR_PREREQ_NOT_SATISFIED)) { + dev_err(sock->dev, "Message ID 0x%X failure : Prerequisite not satisfied (status = 0x%X)\n", + msg->msg_id, mbox_status); + return -EREMOTEIO; + } else if (unlikely(mbox_status == HSMP_ERR_SMU_BUSY)) { + dev_err(sock->dev, "Message ID 0x%X failure : SMU BUSY (status = 0x%X)\n", + msg->msg_id, mbox_status); + return -EBUSY; } else if (unlikely(mbox_status != HSMP_STATUS_OK)) { - pr_err("Message ID %u unknown failure (status = 0x%X)\n", - msg->msg_id, mbox_status); + dev_err(sock->dev, "Message ID 0x%X unknown failure (status = 0x%X)\n", + msg->msg_id, mbox_status); return -EIO; } @@ -133,8 +147,8 @@ static int __hsmp_send_message(struct hsmp_socket *sock, struct hsmp_message *ms ret = sock->amd_hsmp_rdwr(sock, mbinfo->msg_arg_off + (index << 2), &msg->args[index], HSMP_RD); if (ret) { - pr_err("Error %d reading response %u for message ID:%u\n", - ret, index, msg->msg_id); + dev_err(sock->dev, "Error %d reading response %u for message ID:%u\n", + ret, index, msg->msg_id); break; } index++; From 8560b2775a08bf511576a18922c3bde920e69494 Mon Sep 17 00:00:00 2001 From: Suma Hegde Date: Tue, 12 Nov 2024 12:04:50 +0000 Subject: [PATCH 61/69] platform/x86/amd/hsmp: Change the error type MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When file is opened in WRITE only mode, then GET messages are not allowed and when file is opened in READ only mode, SET messages are not allowed. In these scenerios, return error EPERM to userspace instead of EINVAL. Signed-off-by: Suma Hegde Reviewed-by: Naveen Krishna Chatradhi Link: https://lore.kernel.org/r/20241112120450.2407125-2-suma.hegde@amd.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/amd/hsmp/hsmp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index ce91b2cefca2..f29dd93fbf0b 100644 --- a/drivers/platform/x86/amd/hsmp/hsmp.c +++ b/drivers/platform/x86/amd/hsmp/hsmp.c @@ -262,7 +262,7 @@ long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) * Execute only set/configure commands */ if (hsmp_msg_desc_table[msg.msg_id].type != HSMP_SET) - return -EINVAL; + return -EPERM; break; case FMODE_READ: /* @@ -270,7 +270,7 @@ long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) * Execute only get/monitor commands */ if (hsmp_msg_desc_table[msg.msg_id].type != HSMP_GET) - return -EINVAL; + return -EPERM; break; case FMODE_READ | FMODE_WRITE: /* @@ -279,7 +279,7 @@ long hsmp_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) */ break; default: - return -EINVAL; + return -EPERM; } ret = hsmp_send_message(&msg); From 0c32840763b1579c923b4216c18bb756ca4ba473 Mon Sep 17 00:00:00 2001 From: "Michael J. Ruhl" Date: Thu, 14 Nov 2024 08:03:57 -0500 Subject: [PATCH 62/69] platform/x86/intel/pmt: allow user offset for PMT callbacks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Usage of the telem sysfs file allows for partial reads at an offset. The current callback method returns the buffer starting from offset 0 only. Include the requested offset in the callback and update the necessary address calculations with the offset. Note: offset addition is moved from the caller to the local usage. For non-callback usage this is unchanged behavior. Fixes: e92affc74cd8 ("platform/x86/intel/vsec: Add PMT read callbacks") Reviewed-by: Andy Shevchenko Signed-off-by: Michael J. Ruhl Link: https://lore.kernel.org/r/20241114130358.2467787-2-michael.j.ruhl@intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/intel/pmt/class.c | 8 +++++--- drivers/platform/x86/intel/pmt/class.h | 2 +- drivers/platform/x86/intel/pmt/telemetry.c | 2 +- include/linux/intel_vsec.h | 3 ++- 4 files changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c index 7680474c4f96..375695cc0d60 100644 --- a/drivers/platform/x86/intel/pmt/class.c +++ b/drivers/platform/x86/intel/pmt/class.c @@ -59,10 +59,12 @@ pmt_memcpy64_fromio(void *to, const u64 __iomem *from, size_t count) } int pmt_telem_read_mmio(struct pci_dev *pdev, struct pmt_callbacks *cb, u32 guid, void *buf, - void __iomem *addr, u32 count) + void __iomem *addr, loff_t off, u32 count) { if (cb && cb->read_telem) - return cb->read_telem(pdev, guid, buf, count); + return cb->read_telem(pdev, guid, buf, off, count); + + addr += off; if (guid == GUID_SPR_PUNIT) /* PUNIT on SPR only supports aligned 64-bit read */ @@ -96,7 +98,7 @@ intel_pmt_read(struct file *filp, struct kobject *kobj, count = entry->size - off; count = pmt_telem_read_mmio(entry->ep->pcidev, entry->cb, entry->header.guid, buf, - entry->base + off, count); + entry->base, off, count); return count; } diff --git a/drivers/platform/x86/intel/pmt/class.h b/drivers/platform/x86/intel/pmt/class.h index a267ac964423..b2006d57779d 100644 --- a/drivers/platform/x86/intel/pmt/class.h +++ b/drivers/platform/x86/intel/pmt/class.h @@ -62,7 +62,7 @@ struct intel_pmt_namespace { }; int pmt_telem_read_mmio(struct pci_dev *pdev, struct pmt_callbacks *cb, u32 guid, void *buf, - void __iomem *addr, u32 count); + void __iomem *addr, loff_t off, u32 count); bool intel_pmt_is_early_client_hw(struct device *dev); int intel_pmt_dev_create(struct intel_pmt_entry *entry, struct intel_pmt_namespace *ns, diff --git a/drivers/platform/x86/intel/pmt/telemetry.c b/drivers/platform/x86/intel/pmt/telemetry.c index c9feac859e57..0cea617c6c2e 100644 --- a/drivers/platform/x86/intel/pmt/telemetry.c +++ b/drivers/platform/x86/intel/pmt/telemetry.c @@ -219,7 +219,7 @@ int pmt_telem_read(struct telem_endpoint *ep, u32 id, u64 *data, u32 count) if (offset + NUM_BYTES_QWORD(count) > size) return -EINVAL; - pmt_telem_read_mmio(ep->pcidev, ep->cb, ep->header.guid, data, ep->base + offset, + pmt_telem_read_mmio(ep->pcidev, ep->cb, ep->header.guid, data, ep->base, offset, NUM_BYTES_QWORD(count)); return ep->present ? 0 : -EPIPE; diff --git a/include/linux/intel_vsec.h b/include/linux/intel_vsec.h index 11ee185566c3..b94beab64610 100644 --- a/include/linux/intel_vsec.h +++ b/include/linux/intel_vsec.h @@ -74,10 +74,11 @@ enum intel_vsec_quirks { * @pdev: PCI device reference for the callback's use * @guid: ID of data to acccss * @data: buffer for the data to be copied + * @off: offset into the requested buffer * @count: size of buffer */ struct pmt_callbacks { - int (*read_telem)(struct pci_dev *pdev, u32 guid, u64 *data, u32 count); + int (*read_telem)(struct pci_dev *pdev, u32 guid, u64 *data, loff_t off, u32 count); }; /** From 2b8dc45b8ca31e3a0ed1d71cfc042b9b7af85dfb Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Mon, 11 Nov 2024 15:35:20 -0300 Subject: [PATCH 63/69] alienware-wmi: order alienware_quirks[] alphabetically MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit alienware_quirks[] entries are now ordered alphabetically Signed-off-by: Kurt Borja Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241111183520.14573-1-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/alienware-wmi.c | 72 +++++++++++------------ 1 file changed, 36 insertions(+), 36 deletions(-) diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index a800c28bb4d5..bcc80ca8861c 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -204,33 +204,6 @@ static int __init dmi_matched(const struct dmi_system_id *dmi) } static const struct dmi_system_id alienware_quirks[] __initconst = { - { - .callback = dmi_matched, - .ident = "Alienware X51 R3", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R3"), - }, - .driver_data = &quirk_x51_r3, - }, - { - .callback = dmi_matched, - .ident = "Alienware X51 R2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R2"), - }, - .driver_data = &quirk_x51_r1_r2, - }, - { - .callback = dmi_matched, - .ident = "Alienware X51 R1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51"), - }, - .driver_data = &quirk_x51_r1_r2, - }, { .callback = dmi_matched, .ident = "Alienware ASM100", @@ -258,15 +231,6 @@ static const struct dmi_system_id alienware_quirks[] __initconst = { }, .driver_data = &quirk_asm201, }, - { - .callback = dmi_matched, - .ident = "Dell Inc. Inspiron 5675", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5675"), - }, - .driver_data = &quirk_inspiron5675, - }, { .callback = dmi_matched, .ident = "Alienware x15 R1", @@ -276,6 +240,42 @@ static const struct dmi_system_id alienware_quirks[] __initconst = { }, .driver_data = &quirk_x_series, }, + { + .callback = dmi_matched, + .ident = "Alienware X51 R1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51"), + }, + .driver_data = &quirk_x51_r1_r2, + }, + { + .callback = dmi_matched, + .ident = "Alienware X51 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R2"), + }, + .driver_data = &quirk_x51_r1_r2, + }, + { + .callback = dmi_matched, + .ident = "Alienware X51 R3", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R3"), + }, + .driver_data = &quirk_x51_r3, + }, + { + .callback = dmi_matched, + .ident = "Dell Inc. Inspiron 5675", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5675"), + }, + .driver_data = &quirk_inspiron5675, + }, {} }; From 1c1eb70e7d235f5feb7b68861637a5fd0b52a9fd Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Mon, 11 Nov 2024 15:35:46 -0300 Subject: [PATCH 64/69] alienware-wmi: extends the list of supported models MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adds thermal + gmode quirk to: - Dell G15 5510 - Dell G15 5511 - Dell G15 5515 - Dell G3 3500 - Dell G3 3590 - Dell G5 5500 Adds thermal quirk to: - Alienware m18 R2 - Alienware m17 R5 AMD Support for these models was manually verified by reading their respective ACPI tables. Signed-off-by: Kurt Borja Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241111183546.14617-1-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/alienware-wmi.c | 81 +++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index bcc80ca8861c..d1e72915ed4d 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -188,6 +188,15 @@ static struct quirk_entry quirk_asm201 = { .gmode = false, }; +static struct quirk_entry quirk_g_series = { + .num_zones = 2, + .hdmi_mux = 0, + .amplifier = 0, + .deepslp = 0, + .thermal = true, + .gmode = true, +}; + static struct quirk_entry quirk_x_series = { .num_zones = 2, .hdmi_mux = 0, @@ -231,6 +240,24 @@ static const struct dmi_system_id alienware_quirks[] __initconst = { }, .driver_data = &quirk_asm201, }, + { + .callback = dmi_matched, + .ident = "Alienware m17 R5", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m17 R5 AMD"), + }, + .driver_data = &quirk_x_series, + }, + { + .callback = dmi_matched, + .ident = "Alienware m18 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m18 R2"), + }, + .driver_data = &quirk_x_series, + }, { .callback = dmi_matched, .ident = "Alienware x15 R1", @@ -267,6 +294,60 @@ static const struct dmi_system_id alienware_quirks[] __initconst = { }, .driver_data = &quirk_x51_r3, }, + { + .callback = dmi_matched, + .ident = "Dell Inc. G15 5510", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5510"), + }, + .driver_data = &quirk_g_series, + }, + { + .callback = dmi_matched, + .ident = "Dell Inc. G15 5511", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5511"), + }, + .driver_data = &quirk_g_series, + }, + { + .callback = dmi_matched, + .ident = "Dell Inc. G15 5515", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"), + }, + .driver_data = &quirk_g_series, + }, + { + .callback = dmi_matched, + .ident = "Dell Inc. G3 3500", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "G3 3500"), + }, + .driver_data = &quirk_g_series, + }, + { + .callback = dmi_matched, + .ident = "Dell Inc. G3 3590", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "G3 3590"), + }, + .driver_data = &quirk_g_series, + }, + { + .callback = dmi_matched, + .ident = "Dell Inc. G5 5500", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "G5 5500"), + }, + .driver_data = &quirk_g_series, + }, { .callback = dmi_matched, .ident = "Dell Inc. Inspiron 5675", From 01bd181d21cf65e43f30948f9216571218732a12 Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Mon, 11 Nov 2024 15:36:09 -0300 Subject: [PATCH 65/69] alienware-wmi: Adds support to Alienware x17 R2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adds support to Alienware x17 R2 Tested-by: Samith Castro Signed-off-by: Kurt Borja Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241111183609.14653-1-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/alienware-wmi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index d1e72915ed4d..36d182f217e2 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -267,6 +267,15 @@ static const struct dmi_system_id alienware_quirks[] __initconst = { }, .driver_data = &quirk_x_series, }, + { + .callback = dmi_matched, + .ident = "Alienware x17 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x17 R2"), + }, + .driver_data = &quirk_x_series, + }, { .callback = dmi_matched, .ident = "Alienware X51 R1", From bfcda5cbcdb642a64d5b8a0229842dca7917ac6e Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Mon, 11 Nov 2024 15:36:23 -0300 Subject: [PATCH 66/69] alienware-wmi: create_thermal_profile() no longer brute-forces IDs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit WMAX_METHOD_THERMAL_INFORMATION has a *system description* operation that outputs a buffer with the following structure: out[0] -> Number of fans out[1] -> Number of sensors out[2] -> 0x00 out[3] -> Number of thermal modes This is now used by create_thermal_profile() to retrieve available thermal codes instead of brute-forcing every ID. Tested on an Alienware x15 R1. Verified by checking ACPI tables of supported models. Signed-off-by: Kurt Borja Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241111183623.14691-1-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/dell/alienware-wmi.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index 36d182f217e2..77465ed9b449 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -68,6 +68,7 @@ enum WMAX_CONTROL_STATES { }; enum WMAX_THERMAL_INFORMATION_OPERATIONS { + WMAX_OPERATION_SYS_DESCRIPTION = 0x02, WMAX_OPERATION_LIST_IDS = 0x03, WMAX_OPERATION_CURRENT_PROFILE = 0x0B, }; @@ -1110,13 +1111,22 @@ static int thermal_profile_set(struct platform_profile_handler *pprof, static int create_thermal_profile(void) { u32 out_data; + u8 sys_desc[4]; + u32 first_mode; enum wmax_thermal_mode mode; enum platform_profile_option profile; int ret; - for (u8 i = 0x2; i <= 0xD; i++) { + ret = wmax_thermal_information(WMAX_OPERATION_SYS_DESCRIPTION, + 0, (u32 *) &sys_desc); + if (ret < 0) + return ret; + + first_mode = sys_desc[0] + sys_desc[1]; + + for (u32 i = 0; i < sys_desc[3]; i++) { ret = wmax_thermal_information(WMAX_OPERATION_LIST_IDS, - i, &out_data); + i + first_mode, &out_data); if (ret == -EIO) return ret; From 6674c5a0eeb55143cd10514d0083624e056e7d13 Mon Sep 17 00:00:00 2001 From: Kurt Borja Date: Mon, 11 Nov 2024 15:36:39 -0300 Subject: [PATCH 67/69] Documentation: alienware-wmi: Describe THERMAL_INFORMATION operation 0x02 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This operation is used by alienware-wmi driver to avoid brute-forcing operation 0x03. Signed-off-by: Kurt Borja Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20241111183639.14726-1-kuurtb@gmail.com Signed-off-by: Ilpo Järvinen --- Documentation/wmi/devices/alienware-wmi.rst | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/wmi/devices/alienware-wmi.rst b/Documentation/wmi/devices/alienware-wmi.rst index 03f932494d58..ddc5e561960e 100644 --- a/Documentation/wmi/devices/alienware-wmi.rst +++ b/Documentation/wmi/devices/alienware-wmi.rst @@ -96,7 +96,7 @@ WMI method Thermal_Information([in] uint32 arg2, [out] uint32 argr) argr = 1 if BYTE_0(arg2) == 0x02: - argr = UNKNOWN_CONSTANT + argr = SYSTEM_DESCRIPTION if BYTE_0(arg2) == 0x03: if BYTE_1(arg2) == 0x00: @@ -179,6 +179,16 @@ WMI method Thermal_Information([in] uint32 arg2, [out] uint32 argr) else: argr = 0xFFFFFFFF +Operation 0x02 returns a *system description* buffer with the following +structure: + +:: + + out[0] -> Number of fans + out[1] -> Number of sensors + out[2] -> 0x00 + out[3] -> Number of thermal modes + Operation 0x03 list all available fan IDs, sensor IDs and thermal profile codes in order, but different models may have different number of fans and thermal profiles. These are the known ranges: From 5c7bebc1a3f0661db558d60e14dde27fc216d9dc Mon Sep 17 00:00:00 2001 From: Yao Zi Date: Mon, 18 Nov 2024 06:46:39 +0000 Subject: [PATCH 68/69] platform/x86: panasonic-laptop: Return errno correctly in show callback MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When an error occurs in sysfs show callback, we should return the errno directly instead of formatting it as the result, which produces meaningless output and doesn't inform the userspace of the error. Fixes: 468f96bfa3a0 ("platform/x86: panasonic-laptop: Add support for battery charging threshold (eco mode)") Fixes: d5a81d8e864b ("platform/x86: panasonic-laptop: Add support for optical driver power in Y and W series") Signed-off-by: Yao Zi Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20241118064637.61832-3-ziyao@disroot.org Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/panasonic-laptop.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c index 2bf94d0ab324..22ca70eb8227 100644 --- a/drivers/platform/x86/panasonic-laptop.c +++ b/drivers/platform/x86/panasonic-laptop.c @@ -614,8 +614,7 @@ static ssize_t eco_mode_show(struct device *dev, struct device_attribute *attr, result = 1; break; default: - result = -EIO; - break; + return -EIO; } return sysfs_emit(buf, "%u\n", result); } @@ -761,7 +760,12 @@ static ssize_t current_brightness_store(struct device *dev, struct device_attrib static ssize_t cdpower_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sysfs_emit(buf, "%d\n", get_optd_power_state()); + int state = get_optd_power_state(); + + if (state < 0) + return state; + + return sysfs_emit(buf, "%d\n", state); } static ssize_t cdpower_store(struct device *dev, struct device_attribute *attr, From c6a2b4fcec5f2d80b0183fae1117f06127584c28 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 16 Nov 2024 16:45:46 +0100 Subject: [PATCH 69/69] platform/x86: p2sb: Cache correct PCI bar for P2SB on Gemini Lake MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Gemini Lake (Goldmont Plus) is an Apollo Lake (Goldmont) derived design and as such has the P2SB at device.function 13.0, rather then at the default 31.1, just like Apollo Lake. At a mapping to P2SB_DEVFN_GOLDMONT to p2sb_cpu_ids[] for Goldmont Plus, so that the correct PCI bar gets cached. This fixes P2SB unhiding not working on these devices, which fixes SPI support for the bootrom SPI controller not working. Fixes: 2841631a0365 ("platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe") Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20241116154546.85761-1-hdegoede@redhat.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/p2sb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/platform/x86/p2sb.c b/drivers/platform/x86/p2sb.c index 31f38309b389..d51eb0db0626 100644 --- a/drivers/platform/x86/p2sb.c +++ b/drivers/platform/x86/p2sb.c @@ -25,6 +25,7 @@ static const struct x86_cpu_id p2sb_cpu_ids[] = { X86_MATCH_VFM(INTEL_ATOM_GOLDMONT, P2SB_DEVFN_GOLDMONT), + X86_MATCH_VFM(INTEL_ATOM_GOLDMONT_PLUS, P2SB_DEVFN_GOLDMONT), {} };