# 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 for more details. You should also select and configure AGP (/dev/agpgart) support if it is available for your platform. if DRM config DRM_MIPI_DBI tristate depends on DRM select DRM_KMS_HELPER config DRM_MIPI_DSI bool depends on DRM config DRM_DEBUG_MM bool "Insert extra checks and debug info into the DRM range managers" default n depends on DRM depends on STACKTRACE_SUPPORT select STACKDEPOT help Enable allocation tracking of memory manager and leak detection on shutdown. Recommended for driver developers only. If in doubt, say "N". config DRM_USE_DYNAMIC_DEBUG bool "use dynamic debug to implement drm.debug" default n depends on BROKEN depends on DRM depends on DYNAMIC_DEBUG || DYNAMIC_DEBUG_CORE depends on JUMP_LABEL help Use dynamic-debug to avoid drm_debug_enabled() runtime overheads. Due to callsite counts in DRM drivers (~4k in amdgpu) and 56 bytes per callsite, the .data costs can be substantial, and are therefore configurable. config DRM_KUNIT_TEST_HELPERS tristate depends on DRM && KUNIT select DRM_KMS_HELPER help KUnit Helpers for KMS drivers. config DRM_KUNIT_TEST tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS depends on DRM && KUNIT && MMU select DRM_BUDDY select DRM_DISPLAY_DP_HELPER select DRM_DISPLAY_HDMI_STATE_HELPER select DRM_DISPLAY_HELPER select DRM_EXEC select DRM_EXPORT_FOR_TESTS if m select DRM_GEM_SHMEM_HELPER select DRM_KUNIT_TEST_HELPERS select DRM_LIB_RANDOM select PRIME_NUMBERS default KUNIT_ALL_TESTS help This builds unit tests for DRM. This option is not useful for distributions or general kernels, but only for kernel developers working on DRM and associated drivers. For more information on KUnit and unit tests in general, please refer to the KUnit documentation in Documentation/dev-tools/kunit/. If in doubt, say "N". config DRM_KMS_HELPER tristate depends on DRM help CRTC helpers for KMS drivers. config DRM_PANIC bool "Display a user-friendly message when a kernel panic occurs" depends on DRM select FONT_SUPPORT 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 depends on 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. config DRM_CLIENT_LIB tristate depends on DRM select DRM_KMS_HELPER if DRM_FBDEV_EMULATION select FB_CORE if DRM_FBDEV_EMULATION help This option enables the DRM client library and selects all modules and components according to the enabled clients. config DRM_CLIENT_SELECTION tristate depends on DRM select DRM_CLIENT_LIB if DRM_FBDEV_EMULATION help Drivers that support in-kernel DRM clients have to select this option. config DRM_CLIENT_SETUP bool depends on DRM_CLIENT_SELECTION help Enables the DRM client selection. DRM drivers that support the default clients should select DRM_CLIENT_SELECTION instead. menu "Supported DRM clients" depends on DRM_CLIENT_SELECTION config DRM_FBDEV_EMULATION bool "Enable legacy fbdev support for your modesetting driver" depends on DRM_CLIENT_SELECTION select DRM_CLIENT select DRM_CLIENT_SETUP select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE default FB help Choose this option if you have a need for the legacy fbdev support. Note that this support also provides the linux console support on top of your modesetting driver. If in doubt, say "Y". config DRM_FBDEV_OVERALLOC int "Overallocation of the fbdev buffer" depends on DRM_FBDEV_EMULATION default 100 help Defines the fbdev buffer overallocation in percent. Default is 100. Typical values for double buffering will be 200, triple buffering 300. config DRM_FBDEV_LEAK_PHYS_SMEM bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)" depends on DRM_FBDEV_EMULATION && EXPERT default n help In order to keep user-space compatibility, we want in certain use-cases to keep leaking the fbdev physical address to the user-space program handling the fbdev buffer. This affects, not only, Amlogic, Allwinner or Rockchip devices with ARM Mali GPUs using an userspace Blob. This option is not supported by upstream developers and should be removed as soon as possible and be considered as a broken and legacy behaviour from a modern fbdev device driver. Please send any bug reports when using this to your proprietary software vendor that requires this. If in doubt, say "N" or spread the word to your closed source library vendor. endmenu 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 help GPU memory management subsystem for devices with multiple GPU memory types. Will be enabled automatically if a device driver uses it. config DRM_TTM_KUNIT_TEST tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS default n depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST) select DRM_TTM select DRM_BUDDY select DRM_EXPORT_FOR_TESTS if m select DRM_KUNIT_TEST_HELPERS default KUNIT_ALL_TESTS help Enables unit tests for TTM, a GPU memory manager subsystem used to manage memory buffers. This option is mostly useful for kernel developers. It depends on (UML || COMPILE_TEST) since no other driver which uses TTM can be loaded while running the tests. If in doubt, say "N". 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_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 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 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 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/i2c/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/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/xlnx/Kconfig" source "drivers/gpu/drm/gud/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 && MMU && 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. config DRM_EXPORT_FOR_TESTS bool config DRM_LIB_RANDOM bool default n config DRM_PRIVACY_SCREEN bool default n config DRM_WERROR bool "Compile the drm subsystem with warnings as errors" depends on DRM && EXPERT depends on !WERROR default n help A kernel build should not cause any compiler warnings, and this enables the '-Werror' flag to enforce that rule in the drm subsystem. The drm subsystem enables more warnings than the kernel default, so this config option is disabled by default. If in doubt, say N. endif # Separate option because drm_panel_orientation_quirks.c is shared with fbdev config DRM_PANEL_ORIENTATION_QUIRKS tristate