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platform/x86/amd/pmf: Enable Custom BIOS Inputs for PMF-TA

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Introduce support for passing custom BIOS inputs to the PMF-TA to assess
BIOS input policy conditions. The PMF driver will adjust system settings
based on these BIOS input conditions and their corresponding output
actions.

Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20241205101937.2547351-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Shyam Sundar S K 2024-12-05 15:49:37 +05:30 committed by Ilpo Järvinen
parent 8ba0e61861
commit 9e0894d070
No known key found for this signature in database
GPG Key ID: 59AC4F6153E5CE31
3 changed files with 62 additions and 1 deletions
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24
drivers/platform/x86/amd/pmf/acpi.c
View File

@ -321,6 +321,18 @@ int apmf_get_sbios_requests(struct amd_pmf_dev *pdev, struct apmf_sbios_req *req
req, sizeof(*req));
}
static void apmf_event_handler_v2(acpi_handle handle, u32 event, void *data)
{
struct amd_pmf_dev *pmf_dev = data;
int ret;
guard(mutex)(&pmf_dev->cb_mutex);
ret = apmf_get_sbios_requests_v2(pmf_dev, &pmf_dev->req);
if (ret)
dev_err(pmf_dev->dev, "Failed to get v2 SBIOS requests: %d\n", ret);
}
static void apmf_event_handler(acpi_handle handle, u32 event, void *data)
{
struct amd_pmf_dev *pmf_dev = data;
@ -430,6 +442,15 @@ int apmf_install_handler(struct amd_pmf_dev *pmf_dev)
apmf_event_handler(ahandle, 0, pmf_dev);
}
if (pmf_dev->smart_pc_enabled && pmf_dev->pmf_if_version == PMF_IF_V2) {
status = acpi_install_notify_handler(ahandle, ACPI_ALL_NOTIFY,
apmf_event_handler_v2, pmf_dev);
if (ACPI_FAILURE(status)) {
dev_err(pmf_dev->dev, "failed to install notify handler for custom BIOS inputs\n");
return -ENODEV;
}
}
return 0;
}
@ -480,6 +501,9 @@ void apmf_acpi_deinit(struct amd_pmf_dev *pmf_dev)
if (is_apmf_func_supported(pmf_dev, APMF_FUNC_AUTO_MODE) &&
is_apmf_func_supported(pmf_dev, APMF_FUNC_SBIOS_REQUESTS))
acpi_remove_notify_handler(ahandle, ACPI_ALL_NOTIFY, apmf_event_handler);
if (pmf_dev->smart_pc_enabled && pmf_dev->pmf_if_version == PMF_IF_V2)
acpi_remove_notify_handler(ahandle, ACPI_ALL_NOTIFY, apmf_event_handler_v2);
}
int apmf_acpi_init(struct amd_pmf_dev *pmf_dev)

15
drivers/platform/x86/amd/pmf/pmf.h
View File

@ -370,6 +370,8 @@ struct amd_pmf_dev {
struct input_dev *pmf_idev;
size_t mtable_size;
struct resource *res;
struct apmf_sbios_req_v2 req; /* To get custom bios pending request */
struct mutex cb_mutex;
};
struct apmf_sps_prop_granular_v2 {
@ -616,6 +618,16 @@ enum ta_slider {
TA_MAX,
};
enum apmf_smartpc_custom_bios_inputs {
APMF_SMARTPC_CUSTOM_BIOS_INPUT1,
APMF_SMARTPC_CUSTOM_BIOS_INPUT2,
};
enum apmf_preq_smartpc {
NOTIFY_CUSTOM_BIOS_INPUT1 = 5,
NOTIFY_CUSTOM_BIOS_INPUT2,
};
/* Command ids for TA communication */
enum ta_pmf_command {
TA_PMF_COMMAND_POLICY_BUILDER_INITIALIZE,
@ -657,7 +669,8 @@ struct ta_pmf_condition_info {
u32 power_slider;
u32 lid_state;
bool user_present;
u32 rsvd1[2];
u32 bios_input1;
u32 bios_input2;
u32 monitor_count;
u32 rsvd2[2];
u32 bat_design;

24
drivers/platform/x86/amd/pmf/spc.c
View File

@ -47,12 +47,35 @@ void amd_pmf_dump_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *
dev_dbg(dev->dev, "LID State: %s\n", in->ev_info.lid_state ? "close" : "open");
dev_dbg(dev->dev, "User Presence: %s\n", in->ev_info.user_present ? "Present" : "Away");
dev_dbg(dev->dev, "Ambient Light: %d\n", in->ev_info.ambient_light);
dev_dbg(dev->dev, "Custom BIOS input1: %u\n", in->ev_info.bios_input1);
dev_dbg(dev->dev, "Custom BIOS input2: %u\n", in->ev_info.bios_input2);
dev_dbg(dev->dev, "==== TA inputs END ====\n");
}
#else
void amd_pmf_dump_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in) {}
#endif
static void amd_pmf_get_custom_bios_inputs(struct amd_pmf_dev *pdev,
struct ta_pmf_enact_table *in)
{
if (!pdev->req.pending_req)
return;
switch (pdev->req.pending_req) {
case BIT(NOTIFY_CUSTOM_BIOS_INPUT1):
in->ev_info.bios_input1 = pdev->req.custom_policy[APMF_SMARTPC_CUSTOM_BIOS_INPUT1];
break;
case BIT(NOTIFY_CUSTOM_BIOS_INPUT2):
in->ev_info.bios_input2 = pdev->req.custom_policy[APMF_SMARTPC_CUSTOM_BIOS_INPUT2];
break;
default:
dev_dbg(pdev->dev, "Invalid preq for BIOS input: 0x%x\n", pdev->req.pending_req);
}
/* Clear pending requests after handling */
memset(&pdev->req, 0, sizeof(pdev->req));
}
static void amd_pmf_get_c0_residency(u16 *core_res, size_t size, struct ta_pmf_enact_table *in)
{
u16 max, avg = 0;
@ -201,4 +224,5 @@ void amd_pmf_populate_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_tab
amd_pmf_get_battery_info(dev, in);
amd_pmf_get_slider_info(dev, in);
amd_pmf_get_sensor_info(dev, in);
amd_pmf_get_custom_bios_inputs(dev, in);
}