1 # SPDX-License-Identifier: GPL-2.0-only
3 # Drm device configuration
5 # This driver provides support for the
6 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
9 tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"
10 depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && HAS_DMA
11 select DRM_PANEL_ORIENTATION_QUIRKS
14 select DMA_SHARED_BUFFER
16 # gallium uses SYS_kcmp for os_same_file_description() to de-duplicate
17 # device and dmabuf fd. Let's make sure that is available for our userspace.
21 Kernel-level support for the Direct Rendering Infrastructure (DRI)
22 introduced in XFree86 4.0. If you say Y here, you need to select
23 the module that's right for your graphics card from the list below.
24 These modules provide support for synchronization, security, and
25 DMA transfers. Please see <http://dri.sourceforge.net/> for more
26 details. You should also select and configure AGP
27 (/dev/agpgart) support if it is available for your platform.
41 bool "Insert extra checks and debug info into the DRM range managers"
44 depends on STACKTRACE_SUPPORT
47 Enable allocation tracking of memory manager and leak detection on
50 Recommended for driver developers only.
54 config DRM_USE_DYNAMIC_DEBUG
55 bool "use dynamic debug to implement drm.debug"
59 depends on DYNAMIC_DEBUG || DYNAMIC_DEBUG_CORE
62 Use dynamic-debug to avoid drm_debug_enabled() runtime overheads.
63 Due to callsite counts in DRM drivers (~4k in amdgpu) and 56
64 bytes per callsite, the .data costs can be substantial, and
65 are therefore configurable.
67 config DRM_KUNIT_TEST_HELPERS
69 depends on DRM && KUNIT
72 KUnit Helpers for KMS drivers.
75 tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS
76 depends on DRM && KUNIT && MMU
78 select DRM_DISPLAY_DP_HELPER
79 select DRM_DISPLAY_HDMI_STATE_HELPER
80 select DRM_DISPLAY_HELPER
82 select DRM_EXPORT_FOR_TESTS if m
83 select DRM_GEM_SHMEM_HELPER
84 select DRM_KUNIT_TEST_HELPERS
87 default KUNIT_ALL_TESTS
89 This builds unit tests for DRM. This option is not useful for
90 distributions or general kernels, but only for kernel
91 developers working on DRM and associated drivers.
93 For more information on KUnit and unit tests in general,
94 please refer to the KUnit documentation in
95 Documentation/dev-tools/kunit/.
102 select FB_CORE if DRM_FBDEV_EMULATION
104 CRTC helpers for KMS drivers.
107 bool "Display a user-friendly message when a kernel panic occurs"
111 Enable a drm panic handler, which will display a user-friendly message
112 when a kernel panic occurs. It's useful when using a user-space
113 console instead of fbcon.
114 It will only work if your graphic driver supports this feature.
115 To support Hi-DPI Display, you can enable bigger fonts like
118 config DRM_PANIC_FOREGROUND_COLOR
119 hex "Drm panic screen foreground color, in RGB"
123 config DRM_PANIC_BACKGROUND_COLOR
124 hex "Drm panic screen background color, in RGB"
128 config DRM_PANIC_DEBUG
129 bool "Add a debug fs entry to trigger drm_panic"
130 depends on DRM_PANIC && DEBUG_FS
132 Add dri/[device]/drm_panic_plane_x in the kernel debugfs, to force the
133 panic handler to write the panic message to this plane scanout buffer.
134 This is unsafe and should not be enabled on a production build.
135 If in doubt, say "N".
137 config DRM_PANIC_SCREEN
138 string "Panic screen formatter"
142 This option enable to choose what will be displayed when a kernel
143 panic occurs. You can choose between "user", a short message telling
144 the user to reboot the system, or "kmsg" which will display the last
146 This can also be overridden by drm.panic_screen=xxxx kernel parameter
147 or by writing to /sys/module/drm/parameters/panic_screen sysfs entry
150 config DRM_PANIC_SCREEN_QR_CODE
151 bool "Add a panic screen with a QR code"
152 depends on DRM_PANIC && RUST
155 This option adds a QR code generator, and a panic screen with a QR
156 code. The QR code will contain the last lines of kmsg and other debug
157 information. This should be easier for the user to report a kernel
158 panic, with all debug information available.
159 To use this panic screen, also set DRM_PANIC_SCREEN to "qr_code"
161 config DRM_PANIC_SCREEN_QR_CODE_URL
162 string "Base URL of the QR code in the panic screen"
163 depends on DRM_PANIC_SCREEN_QR_CODE
165 This option sets the base URL to report the kernel panic. If it's set
166 the QR code will contain the URL and the kmsg compressed with zlib as
167 a URL parameter. If it's empty, the QR code will contain the kmsg as
168 uncompressed text only.
169 There is a demo code in javascript, to decode and uncompress the kmsg
170 data from the URL parameter at https://github.com/kdj0c/panic_report
172 config DRM_PANIC_SCREEN_QR_VERSION
173 int "Maximum version (size) of the QR code."
174 depends on DRM_PANIC_SCREEN_QR_CODE
177 This option limits the version (or size) of the QR code. QR code
178 version ranges from Version 1 (21x21) to Version 40 (177x177).
179 Smaller QR code are easier to read, but will contain less debugging
182 config DRM_DEBUG_DP_MST_TOPOLOGY_REFS
183 bool "Enable refcount backtrace history in the DP MST helpers"
184 depends on STACKTRACE_SUPPORT
186 depends on DRM_KMS_HELPER
187 depends on DEBUG_KERNEL
190 Enables debug tracing for topology refs in DRM's DP MST helpers. A
191 history of each topology reference/dereference will be printed to the
192 kernel log once a port or branch device's topology refcount reaches 0.
194 This has the potential to use a lot of memory and print some very
195 large kernel messages. If in doubt, say "N".
197 config DRM_DEBUG_MODESET_LOCK
198 bool "Enable backtrace history for lock contention"
199 depends on STACKTRACE_SUPPORT
200 depends on DEBUG_KERNEL
203 default y if DEBUG_WW_MUTEX_SLOWPATH
205 Enable debug tracing of failures to gracefully handle drm modeset lock
206 contention. A history of each drm modeset lock path hitting -EDEADLK
207 will be saved until gracefully handled, and the backtrace will be
208 printed when attempting to lock a contended lock.
210 If in doubt, say "N".
216 Enables support for DRM clients. DRM drivers that need
217 struct drm_client_dev and its interfaces should select this
218 option. Drivers that support the default clients should
219 select DRM_CLIENT_SELECTION instead.
221 config DRM_CLIENT_LIB
224 select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
225 select FB_CORE if DRM_FBDEV_EMULATION
227 This option enables the DRM client library and selects all
228 modules and components according to the enabled clients.
230 config DRM_CLIENT_SELECTION
233 select DRM_CLIENT_LIB if DRM_FBDEV_EMULATION
235 Drivers that support in-kernel DRM clients have to select this
238 config DRM_CLIENT_SETUP
240 depends on DRM_CLIENT_SELECTION
242 Enables the DRM client selection. DRM drivers that support the
243 default clients should select DRM_CLIENT_SELECTION instead.
245 menu "Supported DRM clients"
246 depends on DRM_CLIENT_SELECTION
248 config DRM_FBDEV_EMULATION
249 bool "Enable legacy fbdev support for your modesetting driver"
250 depends on DRM_CLIENT_SELECTION
252 select DRM_CLIENT_SETUP
253 select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
256 Choose this option if you have a need for the legacy fbdev
257 support. Note that this support also provides the linux console
258 support on top of your modesetting driver.
260 If in doubt, say "Y".
262 config DRM_FBDEV_OVERALLOC
263 int "Overallocation of the fbdev buffer"
264 depends on DRM_FBDEV_EMULATION
267 Defines the fbdev buffer overallocation in percent. Default
268 is 100. Typical values for double buffering will be 200,
269 triple buffering 300.
271 config DRM_FBDEV_LEAK_PHYS_SMEM
272 bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)"
273 depends on DRM_FBDEV_EMULATION && EXPERT
276 In order to keep user-space compatibility, we want in certain
277 use-cases to keep leaking the fbdev physical address to the
278 user-space program handling the fbdev buffer.
279 This affects, not only, Amlogic, Allwinner or Rockchip devices
280 with ARM Mali GPUs using an userspace Blob.
281 This option is not supported by upstream developers and should be
282 removed as soon as possible and be considered as a broken and
283 legacy behaviour from a modern fbdev device driver.
285 Please send any bug reports when using this to your proprietary
286 software vendor that requires this.
288 If in doubt, say "N" or spread the word to your closed source
293 config DRM_LOAD_EDID_FIRMWARE
294 bool "Allow to specify an EDID data set instead of probing for it"
297 Say Y here, if you want to use EDID data to be loaded from the
298 /lib/firmware directory or one of the provided built-in
299 data sets. This may be necessary, if the graphics adapter or
300 monitor are unable to provide appropriate EDID data. Since this
301 feature is provided as a workaround for broken hardware, the
302 default case is N. Details and instructions how to build your own
303 EDID data are given in Documentation/admin-guide/edid.rst.
305 source "drivers/gpu/drm/display/Kconfig"
309 depends on DRM && MMU
311 GPU memory management subsystem for devices with multiple
312 GPU memory types. Will be enabled automatically if a device driver
315 config DRM_TTM_KUNIT_TEST
316 tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS
318 depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST)
321 select DRM_EXPORT_FOR_TESTS if m
322 select DRM_KUNIT_TEST_HELPERS
323 default KUNIT_ALL_TESTS
325 Enables unit tests for TTM, a GPU memory manager subsystem used
326 to manage memory buffers. This option is mostly useful for kernel
327 developers. It depends on (UML || COMPILE_TEST) since no other driver
328 which uses TTM can be loaded while running the tests.
330 If in doubt, say "N".
336 Execution context for command submissions
343 GPU-VM representation providing helpers to manage a GPUs virtual
350 A page based buddy allocator
352 config DRM_VRAM_HELPER
356 Helpers for VRAM memory management
358 config DRM_TTM_HELPER
362 select FB_CORE if DRM_FBDEV_EMULATION
363 select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
365 Helpers for ttm-based gem objects
367 config DRM_GEM_DMA_HELPER
370 select FB_CORE if DRM_FBDEV_EMULATION
371 select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
373 Choose this if you need the GEM DMA helper functions
375 config DRM_GEM_SHMEM_HELPER
377 depends on DRM && MMU
378 select FB_CORE if DRM_FBDEV_EMULATION
379 select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
381 Choose this if you need the GEM shmem helper functions
383 config DRM_SUBALLOC_HELPER
391 source "drivers/gpu/drm/i2c/Kconfig"
393 source "drivers/gpu/drm/arm/Kconfig"
395 source "drivers/gpu/drm/radeon/Kconfig"
397 source "drivers/gpu/drm/amd/amdgpu/Kconfig"
399 source "drivers/gpu/drm/nouveau/Kconfig"
401 source "drivers/gpu/drm/i915/Kconfig"
403 source "drivers/gpu/drm/xe/Kconfig"
405 source "drivers/gpu/drm/kmb/Kconfig"
408 tristate "Virtual GEM provider"
409 depends on DRM && MMU
410 select DRM_GEM_SHMEM_HELPER
412 Choose this option to get a virtual graphics memory manager,
413 as used by Mesa's software renderer for enhanced performance.
414 If M is selected the module will be called vgem.
416 source "drivers/gpu/drm/vkms/Kconfig"
418 source "drivers/gpu/drm/exynos/Kconfig"
420 source "drivers/gpu/drm/rockchip/Kconfig"
422 source "drivers/gpu/drm/vmwgfx/Kconfig"
424 source "drivers/gpu/drm/gma500/Kconfig"
426 source "drivers/gpu/drm/udl/Kconfig"
428 source "drivers/gpu/drm/ast/Kconfig"
430 source "drivers/gpu/drm/mgag200/Kconfig"
432 source "drivers/gpu/drm/armada/Kconfig"
434 source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
436 source "drivers/gpu/drm/renesas/Kconfig"
438 source "drivers/gpu/drm/sun4i/Kconfig"
440 source "drivers/gpu/drm/omapdrm/Kconfig"
442 source "drivers/gpu/drm/tilcdc/Kconfig"
444 source "drivers/gpu/drm/qxl/Kconfig"
446 source "drivers/gpu/drm/virtio/Kconfig"
448 source "drivers/gpu/drm/msm/Kconfig"
450 source "drivers/gpu/drm/fsl-dcu/Kconfig"
452 source "drivers/gpu/drm/tegra/Kconfig"
454 source "drivers/gpu/drm/stm/Kconfig"
456 source "drivers/gpu/drm/panel/Kconfig"
458 source "drivers/gpu/drm/bridge/Kconfig"
460 source "drivers/gpu/drm/sti/Kconfig"
462 source "drivers/gpu/drm/imx/Kconfig"
464 source "drivers/gpu/drm/ingenic/Kconfig"
466 source "drivers/gpu/drm/v3d/Kconfig"
468 source "drivers/gpu/drm/vc4/Kconfig"
470 source "drivers/gpu/drm/loongson/Kconfig"
472 source "drivers/gpu/drm/etnaviv/Kconfig"
474 source "drivers/gpu/drm/hisilicon/Kconfig"
476 source "drivers/gpu/drm/logicvc/Kconfig"
478 source "drivers/gpu/drm/mediatek/Kconfig"
480 source "drivers/gpu/drm/mxsfb/Kconfig"
482 source "drivers/gpu/drm/meson/Kconfig"
484 source "drivers/gpu/drm/tiny/Kconfig"
486 source "drivers/gpu/drm/pl111/Kconfig"
488 source "drivers/gpu/drm/tve200/Kconfig"
490 source "drivers/gpu/drm/xen/Kconfig"
492 source "drivers/gpu/drm/vboxvideo/Kconfig"
494 source "drivers/gpu/drm/lima/Kconfig"
496 source "drivers/gpu/drm/panfrost/Kconfig"
498 source "drivers/gpu/drm/panthor/Kconfig"
500 source "drivers/gpu/drm/aspeed/Kconfig"
502 source "drivers/gpu/drm/mcde/Kconfig"
504 source "drivers/gpu/drm/tidss/Kconfig"
506 source "drivers/gpu/drm/xlnx/Kconfig"
508 source "drivers/gpu/drm/gud/Kconfig"
510 source "drivers/gpu/drm/solomon/Kconfig"
512 source "drivers/gpu/drm/sprd/Kconfig"
514 source "drivers/gpu/drm/imagination/Kconfig"
517 tristate "DRM Support for Hyper-V synthetic video device"
518 depends on DRM && PCI && MMU && HYPERV
519 select DRM_CLIENT_SELECTION
520 select DRM_KMS_HELPER
521 select DRM_GEM_SHMEM_HELPER
523 This is a KMS driver for Hyper-V synthetic video device. Choose this
524 option if you would like to enable drm driver for Hyper-V virtual
525 machine. Unselect Hyper-V framebuffer driver (CONFIG_FB_HYPERV) so
526 that DRM driver is used by default.
528 If M is selected the module will be called hyperv_drm.
530 config DRM_EXPORT_FOR_TESTS
533 config DRM_LIB_RANDOM
537 config DRM_PRIVACY_SCREEN
542 bool "Compile the drm subsystem with warnings as errors"
543 depends on DRM && EXPERT
547 A kernel build should not cause any compiler warnings, and this
548 enables the '-Werror' flag to enforce that rule in the drm subsystem.
550 The drm subsystem enables more warnings than the kernel default, so
551 this config option is disabled by default.
557 # Separate option because drm_panel_orientation_quirks.c is shared with fbdev
558 config DRM_PANEL_ORIENTATION_QUIRKS