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https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
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75fa9b7e37
The plain values as stored in struct screen_info need to be decoded before being used. Add helpers that decode the type of video output and the framebuffer I/O aperture. Old or non-x86 systems may not set the type of video directly, but only indicate the presence by storing 0x01 in orig_video_isVGA. The decoding logic in screen_info_video_type() takes this into account. It then follows similar code in vgacon's vgacon_startup() to detect the video type from the given values. A call to screen_info_resources() returns all known resources of the given screen_info. The resources' values have been taken from existing code in vgacon and vga16fb. These drivers can later be converted to use the new interfaces. v2: * return ssize_t from screen_info_resources() * don't call __screen_info_has_lfb() unnecessarily Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240212090736.11464-2-tzimmermann@suse.de
275 lines
10 KiB
Plaintext
275 lines
10 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/kconfig-language.rst.
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#
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menu "Firmware Drivers"
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source "drivers/firmware/arm_scmi/Kconfig"
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config ARM_SCPI_PROTOCOL
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tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
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depends on ARM || ARM64 || COMPILE_TEST
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depends on MAILBOX
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help
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System Control and Power Interface (SCPI) Message Protocol is
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defined for the purpose of communication between the Application
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Cores(AP) and the System Control Processor(SCP). The MHU peripheral
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provides a mechanism for inter-processor communication between SCP
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and AP.
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SCP controls most of the power management on the Application
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Processors. It offers control and management of: the core/cluster
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power states, various power domain DVFS including the core/cluster,
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certain system clocks configuration, thermal sensors and many
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others.
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This protocol library provides interface for all the client drivers
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making use of the features offered by the SCP.
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config ARM_SDE_INTERFACE
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bool "ARM Software Delegated Exception Interface (SDEI)"
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depends on ARM64
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depends on ACPI_APEI_GHES
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help
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The Software Delegated Exception Interface (SDEI) is an ARM
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standard for registering callbacks from the platform firmware
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into the OS. This is typically used to implement RAS notifications.
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config EDD
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tristate "BIOS Enhanced Disk Drive calls determine boot disk"
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depends on X86
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help
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Say Y or M here if you want to enable BIOS Enhanced Disk Drive
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Services real mode BIOS calls to determine which disk
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BIOS tries boot from. This information is then exported via sysfs.
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This option is experimental and is known to fail to boot on some
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obscure configurations. Most disk controller BIOS vendors do
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not yet implement this feature.
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config EDD_OFF
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bool "Sets default behavior for EDD detection to off"
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depends on EDD
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default n
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help
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Say Y if you want EDD disabled by default, even though it is compiled into the
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kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
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using the kernel parameter 'edd={on|skipmbr|off}'.
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config FIRMWARE_MEMMAP
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bool "Add firmware-provided memory map to sysfs" if EXPERT
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default X86
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help
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Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
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That memory map is used for example by kexec to set up parameter area
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for the next kernel, but can also be used for debugging purposes.
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See also Documentation/ABI/testing/sysfs-firmware-memmap.
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config DMIID
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bool "Export DMI identification via sysfs to userspace"
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depends on DMI
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default y
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help
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Say Y here if you want to query SMBIOS/DMI system identification
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information from userspace through /sys/class/dmi/id/ or if you want
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DMI-based module auto-loading.
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config DMI_SYSFS
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tristate "DMI table support in sysfs"
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depends on SYSFS && DMI
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default n
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help
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Say Y or M here to enable the exporting of the raw DMI table
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data via sysfs. This is useful for consuming the data without
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requiring any access to /dev/mem at all. Tables are found
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under /sys/firmware/dmi when this option is enabled and
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loaded.
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config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
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bool
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config ISCSI_IBFT_FIND
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bool "iSCSI Boot Firmware Table Attributes"
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depends on X86 && ISCSI_IBFT
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default n
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help
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This option enables the kernel to find the region of memory
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in which the ISCSI Boot Firmware Table (iBFT) resides. This
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is necessary for iSCSI Boot Firmware Table Attributes module to work
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properly.
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config ISCSI_IBFT
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tristate "iSCSI Boot Firmware Table Attributes module"
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select ISCSI_BOOT_SYSFS
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select ISCSI_IBFT_FIND if X86
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depends on ACPI && SCSI && SCSI_LOWLEVEL
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default n
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help
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This option enables support for detection and exposing of iSCSI
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Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
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detect iSCSI boot parameters dynamically during system boot, say Y.
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Otherwise, say N.
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config RASPBERRYPI_FIRMWARE
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tristate "Raspberry Pi Firmware Driver"
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depends on BCM2835_MBOX
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help
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This option enables support for communicating with the firmware on the
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Raspberry Pi.
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config FW_CFG_SYSFS
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tristate "QEMU fw_cfg device support in sysfs"
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depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || RISCV || SPARC || X86)
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depends on HAS_IOPORT_MAP
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default n
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help
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Say Y or M here to enable the exporting of the QEMU firmware
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configuration (fw_cfg) file entries via sysfs. Entries are
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found under /sys/firmware/fw_cfg when this option is enabled
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and loaded.
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config FW_CFG_SYSFS_CMDLINE
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bool "QEMU fw_cfg device parameter parsing"
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depends on FW_CFG_SYSFS
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help
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Allow the qemu_fw_cfg device to be initialized via the kernel
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command line or using a module parameter.
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WARNING: Using incorrect parameters (base address in particular)
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may crash your system.
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config INTEL_STRATIX10_SERVICE
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tristate "Intel Stratix10 Service Layer"
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depends on ARCH_INTEL_SOCFPGA && ARM64 && HAVE_ARM_SMCCC
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default n
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help
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Intel Stratix10 service layer runs at privileged exception level,
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interfaces with the service providers (FPGA manager is one of them)
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and manages secure monitor call to communicate with secure monitor
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software at secure monitor exception level.
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Say Y here if you want Stratix10 service layer support.
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config INTEL_STRATIX10_RSU
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tristate "Intel Stratix10 Remote System Update"
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depends on INTEL_STRATIX10_SERVICE
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help
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The Intel Remote System Update (RSU) driver exposes interfaces
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access through the Intel Service Layer to user space via sysfs
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device attribute nodes. The RSU interfaces report/control some of
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the optional RSU features of the Stratix 10 SoC FPGA.
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The RSU provides a way for customers to update the boot
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configuration of a Stratix 10 SoC device with significantly reduced
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risk of corrupting the bitstream storage and bricking the system.
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Enable RSU support if you are using an Intel SoC FPGA with the RSU
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feature enabled and you want Linux user space control.
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Say Y here if you want Intel RSU support.
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config MTK_ADSP_IPC
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tristate "MTK ADSP IPC Protocol driver"
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depends on MTK_ADSP_MBOX
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help
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Say yes here to add support for the MediaTek ADSP IPC
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between host AP (Linux) and the firmware running on ADSP.
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ADSP exists on some mtk processors.
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Client might use shared memory to exchange information with ADSP.
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config SYSFB
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bool
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select BOOT_VESA_SUPPORT
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select SCREEN_INFO
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config SYSFB_SIMPLEFB
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bool "Mark VGA/VBE/EFI FB as generic system framebuffer"
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depends on X86 || EFI
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select SYSFB
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help
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Firmwares often provide initial graphics framebuffers so the BIOS,
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bootloader or kernel can show basic video-output during boot for
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user-guidance and debugging. Historically, x86 used the VESA BIOS
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Extensions and EFI-framebuffers for this, which are mostly limited
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to x86 BIOS or EFI systems.
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This option, if enabled, marks VGA/VBE/EFI framebuffers as generic
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framebuffers so the new generic system-framebuffer drivers can be
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used instead. If the framebuffer is not compatible with the generic
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modes, it is advertised as fallback platform framebuffer so legacy
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drivers like efifb, vesafb and uvesafb can pick it up.
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If this option is not selected, all system framebuffers are always
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marked as fallback platform framebuffers as usual.
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Note: Legacy fbdev drivers, including vesafb, efifb, uvesafb, will
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not be able to pick up generic system framebuffers if this option
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is selected. You are highly encouraged to enable simplefb as
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replacement if you select this option. simplefb can correctly deal
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with generic system framebuffers. But you should still keep vesafb
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and others enabled as fallback if a system framebuffer is
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incompatible with simplefb.
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If unsure, say Y.
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config TI_SCI_PROTOCOL
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tristate "TI System Control Interface (TISCI) Message Protocol"
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depends on TI_MESSAGE_MANAGER
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help
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TI System Control Interface (TISCI) Message Protocol is used to manage
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compute systems such as ARM, DSP etc with the system controller in
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complex System on Chip(SoC) such as those found on certain keystone
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generation SoC from TI.
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System controller provides various facilities including power
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management function support.
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This protocol library is used by client drivers to use the features
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provided by the system controller.
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config TRUSTED_FOUNDATIONS
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bool "Trusted Foundations secure monitor support"
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depends on ARM && CPU_V7
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help
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Some devices (including most early Tegra-based consumer devices on
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the market) are booted with the Trusted Foundations secure monitor
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active, requiring some core operations to be performed by the secure
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monitor instead of the kernel.
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This option allows the kernel to invoke the secure monitor whenever
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required on devices using Trusted Foundations. See the functions and
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comments in linux/firmware/trusted_foundations.h or the device tree
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bindings for "tlm,trusted-foundations" for details on how to use it.
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Choose N if you don't know what this is about.
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config TURRIS_MOX_RWTM
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tristate "Turris Mox rWTM secure firmware driver"
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depends on ARCH_MVEBU || COMPILE_TEST
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depends on HAS_DMA && OF
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depends on MAILBOX
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select HW_RANDOM
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select ARMADA_37XX_RWTM_MBOX
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help
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This driver communicates with the firmware on the Cortex-M3 secure
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processor of the Turris Mox router. Enable if you are building for
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Turris Mox, and you will be able to read the device serial number and
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other manufacturing data and also utilize the Entropy Bit Generator
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for hardware random number generation.
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source "drivers/firmware/arm_ffa/Kconfig"
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source "drivers/firmware/broadcom/Kconfig"
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source "drivers/firmware/cirrus/Kconfig"
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source "drivers/firmware/google/Kconfig"
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source "drivers/firmware/efi/Kconfig"
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source "drivers/firmware/imx/Kconfig"
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source "drivers/firmware/meson/Kconfig"
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source "drivers/firmware/microchip/Kconfig"
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source "drivers/firmware/psci/Kconfig"
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source "drivers/firmware/qcom/Kconfig"
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source "drivers/firmware/smccc/Kconfig"
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source "drivers/firmware/tegra/Kconfig"
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source "drivers/firmware/xilinx/Kconfig"
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endmenu
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