# SPDX-License-Identifier: GPL-2.0-only
#
# Drm device configuration
#
# This driver provides support for the
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
#
menuconfig DRM
tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"
depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && HAS_DMA
select DRM_PANEL_ORIENTATION_QUIRKS
select HDMI
select I2C
select DMA_SHARED_BUFFER
select SYNC_FILE
# gallium uses SYS_kcmp for os_same_file_description() to de-duplicate
# device and dmabuf fd. Let's make sure that is available for our userspace.
select KCMP
select VIDEO
help
Kernel-level support for the Direct Rendering Infrastructure (DRI)
introduced in XFree86 4.0. If you say Y here, you need to select
the module that's right for your graphics card from the list below.
These modules provide support for synchronization, security, and
DMA transfers. Please see <http://dri.sourceforge.net/> for more
details. You should also select and configure AGP
(/dev/agpgart) support if it is available for your platform.
menu "DRM debugging options"
depends on DRM
source "drivers/gpu/drm/Kconfig.debug"
endmenu
if DRM
config DRM_MIPI_DBI
tristate
depends on DRM
select DRM_KMS_HELPER
config DRM_MIPI_DSI
bool
depends on DRM
config DRM_KMS_HELPER
tristate
depends on DRM
select FB_CORE if DRM_FBDEV_EMULATION
help
CRTC helpers for KMS drivers.
config DRM_DRAW
bool
depends on DRM
config DRM_PANIC
bool "Display a user-friendly message when a kernel panic occurs"
depends on DRM
select FONT_SUPPORT
select DRM_DRAW
help
Enable a drm panic handler, which will display a user-friendly message
when a kernel panic occurs. It's useful when using a user-space
console instead of fbcon.
It will only work if your graphic driver supports this feature.
To support Hi-DPI Display, you can enable bigger fonts like
FONT_TER16x32
config DRM_PANIC_FOREGROUND_COLOR
hex "Drm panic screen foreground color, in RGB"
depends on DRM_PANIC
default 0xffffff
config DRM_PANIC_BACKGROUND_COLOR
hex "Drm panic screen background color, in RGB"
depends on DRM_PANIC
default 0x000000
config DRM_PANIC_DEBUG
bool "Add a debug fs entry to trigger drm_panic"
depends on DRM_PANIC && DEBUG_FS
help
Add dri/[device]/drm_panic_plane_x in the kernel debugfs, to force the
panic handler to write the panic message to this plane scanout buffer.
This is unsafe and should not be enabled on a production build.
If in doubt, say "N".
config DRM_PANIC_SCREEN
string "Panic screen formatter"
default "user"
depends on DRM_PANIC
help
This option enable to choose what will be displayed when a kernel
panic occurs. You can choose between "user", a short message telling
the user to reboot the system, or "kmsg" which will display the last
lines of kmsg.
This can also be overridden by drm.panic_screen=xxxx kernel parameter
or by writing to /sys/module/drm/parameters/panic_screen sysfs entry
Default is "user"
config DRM_PANIC_SCREEN_QR_CODE
bool "Add a panic screen with a QR code"
depends on DRM_PANIC && RUST
select ZLIB_DEFLATE
help
This option adds a QR code generator, and a panic screen with a QR
code. The QR code will contain the last lines of kmsg and other debug
information. This should be easier for the user to report a kernel
panic, with all debug information available.
To use this panic screen, also set DRM_PANIC_SCREEN to "qr_code"
config DRM_PANIC_SCREEN_QR_CODE_URL
string "Base URL of the QR code in the panic screen"
depends on DRM_PANIC_SCREEN_QR_CODE
help
This option sets the base URL to report the kernel panic. If it's set
the QR code will contain the URL and the kmsg compressed with zlib as
a URL parameter. If it's empty, the QR code will contain the kmsg as
uncompressed text only.
There is a demo code in javascript, to decode and uncompress the kmsg
data from the URL parameter at https://github.com/kdj0c/panic_report
config DRM_PANIC_SCREEN_QR_VERSION
int "Maximum version (size) of the QR code."
depends on DRM_PANIC_SCREEN_QR_CODE
default 40
help
This option limits the version (or size) of the QR code. QR code
version ranges from Version 1 (21x21) to Version 40 (177x177).
Smaller QR code are easier to read, but will contain less debugging
data. Default is 40.
config DRM_DEBUG_DP_MST_TOPOLOGY_REFS
bool "Enable refcount backtrace history in the DP MST helpers"
depends on STACKTRACE_SUPPORT
select STACKDEPOT
select DRM_KMS_HELPER
depends on DEBUG_KERNEL
depends on EXPERT
help
Enables debug tracing for topology refs in DRM's DP MST helpers. A
history of each topology reference/dereference will be printed to the
kernel log once a port or branch device's topology refcount reaches 0.
This has the potential to use a lot of memory and print some very
large kernel messages. If in doubt, say "N".
config DRM_DEBUG_MODESET_LOCK
bool "Enable backtrace history for lock contention"
depends on STACKTRACE_SUPPORT
depends on DEBUG_KERNEL
depends on EXPERT
select STACKDEPOT
default y if DEBUG_WW_MUTEX_SLOWPATH
help
Enable debug tracing of failures to gracefully handle drm modeset lock
contention. A history of each drm modeset lock path hitting -EDEADLK
will be saved until gracefully handled, and the backtrace will be
printed when attempting to lock a contended lock.
If in doubt, say "N".
config DRM_CLIENT
bool
depends on DRM
help
Enables support for DRM clients. DRM drivers that need
struct drm_client_dev and its interfaces should select this
option. Drivers that support the default clients should
select DRM_CLIENT_SELECTION instead.
source "drivers/gpu/drm/clients/Kconfig"
config DRM_LOAD_EDID_FIRMWARE
bool "Allow to specify an EDID data set instead of probing for it"
depends on DRM
help
Say Y here, if you want to use EDID data to be loaded from the
/lib/firmware directory or one of the provided built-in
data sets. This may be necessary, if the graphics adapter or
monitor are unable to provide appropriate EDID data. Since this
feature is provided as a workaround for broken hardware, the
default case is N. Details and instructions how to build your own
EDID data are given in Documentation/admin-guide/edid.rst.
source "drivers/gpu/drm/display/Kconfig"
config DRM_TTM
tristate
depends on DRM && MMU
select SHMEM
help
GPU memory management subsystem for devices with multiple
GPU memory types. Will be enabled automatically if a device driver
uses it.
config DRM_EXEC
tristate
depends on DRM
help
Execution context for command submissions
config DRM_GPUVM
tristate
depends on DRM
select DRM_EXEC
help
GPU-VM representation providing helpers to manage a GPUs virtual
address space
config DRM_GPUSVM
tristate
depends on DRM && DEVICE_PRIVATE
select HMM_MIRROR
select MMU_NOTIFIER
help
GPU-SVM representation providing helpers to manage a GPUs shared
virtual memory
config DRM_BUDDY
tristate
depends on DRM
help
A page based buddy allocator
config DRM_VRAM_HELPER
tristate
depends on DRM
help
Helpers for VRAM memory management
config DRM_TTM_HELPER
tristate
depends on DRM
select DRM_TTM
select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
select FB_CORE if DRM_FBDEV_EMULATION
select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
help
Helpers for ttm-based gem objects
config DRM_GEM_DMA_HELPER
tristate
depends on DRM
select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
select FB_CORE if DRM_FBDEV_EMULATION
select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
help
Choose this if you need the GEM DMA helper functions
config DRM_GEM_SHMEM_HELPER
tristate
depends on DRM && MMU
select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
select FB_CORE if DRM_FBDEV_EMULATION
select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
help
Choose this if you need the GEM shmem helper functions
config DRM_SUBALLOC_HELPER
tristate
depends on DRM
config DRM_SCHED
tristate
depends on DRM
source "drivers/gpu/drm/sysfb/Kconfig"
source "drivers/gpu/drm/arm/Kconfig"
source "drivers/gpu/drm/radeon/Kconfig"
source "drivers/gpu/drm/amd/amdgpu/Kconfig"
source "drivers/gpu/drm/nouveau/Kconfig"
source "drivers/gpu/drm/nova/Kconfig"
source "drivers/gpu/drm/i915/Kconfig"
source "drivers/gpu/drm/xe/Kconfig"
source "drivers/gpu/drm/kmb/Kconfig"
config DRM_VGEM
tristate "Virtual GEM provider"
depends on DRM && MMU
select DRM_GEM_SHMEM_HELPER
help
Choose this option to get a virtual graphics memory manager,
as used by Mesa's software renderer for enhanced performance.
If M is selected the module will be called vgem.
source "drivers/gpu/drm/vkms/Kconfig"
source "drivers/gpu/drm/exynos/Kconfig"
source "drivers/gpu/drm/rockchip/Kconfig"
source "drivers/gpu/drm/vmwgfx/Kconfig"
source "drivers/gpu/drm/gma500/Kconfig"
source "drivers/gpu/drm/udl/Kconfig"
source "drivers/gpu/drm/ast/Kconfig"
source "drivers/gpu/drm/mgag200/Kconfig"
source "drivers/gpu/drm/armada/Kconfig"
source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
source "drivers/gpu/drm/renesas/Kconfig"
source "drivers/gpu/drm/sun4i/Kconfig"
source "drivers/gpu/drm/omapdrm/Kconfig"
source "drivers/gpu/drm/tilcdc/Kconfig"
source "drivers/gpu/drm/qxl/Kconfig"
source "drivers/gpu/drm/virtio/Kconfig"
source "drivers/gpu/drm/msm/Kconfig"
source "drivers/gpu/drm/fsl-dcu/Kconfig"
source "drivers/gpu/drm/tegra/Kconfig"
source "drivers/gpu/drm/stm/Kconfig"
source "drivers/gpu/drm/panel/Kconfig"
source "drivers/gpu/drm/bridge/Kconfig"
source "drivers/gpu/drm/sti/Kconfig"
source "drivers/gpu/drm/imx/Kconfig"
source "drivers/gpu/drm/ingenic/Kconfig"
source "drivers/gpu/drm/v3d/Kconfig"
source "drivers/gpu/drm/vc4/Kconfig"
source "drivers/gpu/drm/loongson/Kconfig"
source "drivers/gpu/drm/etnaviv/Kconfig"
source "drivers/gpu/drm/hisilicon/Kconfig"
source "drivers/gpu/drm/logicvc/Kconfig"
source "drivers/gpu/drm/mediatek/Kconfig"
source "drivers/gpu/drm/mxsfb/Kconfig"
source "drivers/gpu/drm/meson/Kconfig"
source "drivers/gpu/drm/tiny/Kconfig"
source "drivers/gpu/drm/pl111/Kconfig"
source "drivers/gpu/drm/tve200/Kconfig"
source "drivers/gpu/drm/xen/Kconfig"
source "drivers/gpu/drm/vboxvideo/Kconfig"
source "drivers/gpu/drm/lima/Kconfig"
source "drivers/gpu/drm/panfrost/Kconfig"
source "drivers/gpu/drm/panthor/Kconfig"
source "drivers/gpu/drm/aspeed/Kconfig"
source "drivers/gpu/drm/mcde/Kconfig"
source "drivers/gpu/drm/tidss/Kconfig"
source "drivers/gpu/drm/adp/Kconfig"
source "drivers/gpu/drm/xlnx/Kconfig"
source "drivers/gpu/drm/gud/Kconfig"
source "drivers/gpu/drm/sitronix/Kconfig"
source "drivers/gpu/drm/solomon/Kconfig"
source "drivers/gpu/drm/sprd/Kconfig"
source "drivers/gpu/drm/imagination/Kconfig"
config DRM_HYPERV
tristate "DRM Support for Hyper-V synthetic video device"
depends on DRM && PCI && HYPERV
select DRM_CLIENT_SELECTION
select DRM_KMS_HELPER
select DRM_GEM_SHMEM_HELPER
help
This is a KMS driver for Hyper-V synthetic video device. Choose this
option if you would like to enable drm driver for Hyper-V virtual
machine. Unselect Hyper-V framebuffer driver (CONFIG_FB_HYPERV) so
that DRM driver is used by default.
If M is selected the module will be called hyperv_drm.
# Separate option as not all DRM drivers use it
config DRM_PANEL_BACKLIGHT_QUIRKS
tristate
config DRM_LIB_RANDOM
bool
default n
config DRM_PRIVACY_SCREEN
bool
default n
endif
# Separate option because drm_panel_orientation_quirks.c is shared with fbdev
config DRM_PANEL_ORIENTATION_QUIRKS
tristate
