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
12 select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
13 select FB_CORE if DRM_FBDEV_EMULATION
14 select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
17 select DMA_SHARED_BUFFER
19 # gallium uses SYS_kcmp for os_same_file_description() to de-duplicate
20 # device and dmabuf fd. Let's make sure that is available for our userspace.
24 Kernel-level support for the Direct Rendering Infrastructure (DRI)
25 introduced in XFree86 4.0. If you say Y here, you need to select
26 the module that's right for your graphics card from the list below.
27 These modules provide support for synchronization, security, and
28 DMA transfers. Please see <http://dri.sourceforge.net/> for more
29 details. You should also select and configure AGP
30 (/dev/agpgart) support if it is available for your platform.
44 bool "Insert extra checks and debug info into the DRM range managers"
47 depends on STACKTRACE_SUPPORT
50 Enable allocation tracking of memory manager and leak detection on
53 Recommended for driver developers only.
57 config DRM_USE_DYNAMIC_DEBUG
58 bool "use dynamic debug to implement drm.debug"
62 depends on DYNAMIC_DEBUG || DYNAMIC_DEBUG_CORE
65 Use dynamic-debug to avoid drm_debug_enabled() runtime overheads.
66 Due to callsite counts in DRM drivers (~4k in amdgpu) and 56
67 bytes per callsite, the .data costs can be substantial, and
68 are therefore configurable.
70 config DRM_KUNIT_TEST_HELPERS
72 depends on DRM && KUNIT
75 KUnit Helpers for KMS drivers.
78 tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS
79 depends on DRM && KUNIT && MMU
81 select DRM_DISPLAY_DP_HELPER
82 select DRM_DISPLAY_HDMI_STATE_HELPER
83 select DRM_DISPLAY_HELPER
85 select DRM_EXPORT_FOR_TESTS if m
86 select DRM_GEM_SHMEM_HELPER
87 select DRM_KUNIT_TEST_HELPERS
90 default KUNIT_ALL_TESTS
92 This builds unit tests for DRM. This option is not useful for
93 distributions or general kernels, but only for kernel
94 developers working on DRM and associated drivers.
96 For more information on KUnit and unit tests in general,
97 please refer to the KUnit documentation in
98 Documentation/dev-tools/kunit/.
100 If in doubt, say "N".
102 config DRM_KMS_HELPER
106 CRTC helpers for KMS drivers.
109 bool "Display a user-friendly message when a kernel panic occurs"
113 Enable a drm panic handler, which will display a user-friendly message
114 when a kernel panic occurs. It's useful when using a user-space
115 console instead of fbcon.
116 It will only work if your graphic driver supports this feature.
117 To support Hi-DPI Display, you can enable bigger fonts like
120 config DRM_PANIC_FOREGROUND_COLOR
121 hex "Drm panic screen foreground color, in RGB"
125 config DRM_PANIC_BACKGROUND_COLOR
126 hex "Drm panic screen background color, in RGB"
130 config DRM_PANIC_DEBUG
131 bool "Add a debug fs entry to trigger drm_panic"
132 depends on DRM_PANIC && DEBUG_FS
134 Add dri/[device]/drm_panic_plane_x in the kernel debugfs, to force the
135 panic handler to write the panic message to this plane scanout buffer.
136 This is unsafe and should not be enabled on a production build.
137 If in doubt, say "N".
139 config DRM_PANIC_SCREEN
140 string "Panic screen formatter"
144 This option enable to choose what will be displayed when a kernel
145 panic occurs. You can choose between "user", a short message telling
146 the user to reboot the system, or "kmsg" which will display the last
148 This can also be overridden by drm.panic_screen=xxxx kernel parameter
149 or by writing to /sys/module/drm/parameters/panic_screen sysfs entry
152 config DRM_PANIC_SCREEN_QR_CODE
153 bool "Add a panic screen with a QR code"
154 depends on DRM_PANIC && RUST
156 This option adds a QR code generator, and a panic screen with a QR
157 code. The QR code will contain the last lines of kmsg and other debug
158 information. This should be easier for the user to report a kernel
159 panic, with all debug information available.
160 To use this panic screen, also set DRM_PANIC_SCREEN to "qr_code"
162 config DRM_PANIC_SCREEN_QR_CODE_URL
163 string "Base URL of the QR code in the panic screen"
164 depends on DRM_PANIC_SCREEN_QR_CODE
166 This option sets the base URL to report the kernel panic. If it's set
167 the QR code will contain the URL and the kmsg compressed with zlib as
168 a URL parameter. If it's empty, the QR code will contain the kmsg as
169 uncompressed text only.
170 There is a demo code in javascript, to decode and uncompress the kmsg
171 data from the URL parameter at https://github.com/kdj0c/panic_report
173 config DRM_PANIC_SCREEN_QR_VERSION
174 int "Maximum version (size) of the QR code."
175 depends on DRM_PANIC_SCREEN_QR_CODE
178 This option limits the version (or size) of the QR code. QR code
179 version ranges from Version 1 (21x21) to Version 40 (177x177).
180 Smaller QR code are easier to read, but will contain less debugging
183 config DRM_DEBUG_DP_MST_TOPOLOGY_REFS
184 bool "Enable refcount backtrace history in the DP MST helpers"
185 depends on STACKTRACE_SUPPORT
187 depends on DRM_KMS_HELPER
188 depends on DEBUG_KERNEL
191 Enables debug tracing for topology refs in DRM's DP MST helpers. A
192 history of each topology reference/dereference will be printed to the
193 kernel log once a port or branch device's topology refcount reaches 0.
195 This has the potential to use a lot of memory and print some very
196 large kernel messages. If in doubt, say "N".
198 config DRM_DEBUG_MODESET_LOCK
199 bool "Enable backtrace history for lock contention"
200 depends on STACKTRACE_SUPPORT
201 depends on DEBUG_KERNEL
204 default y if DEBUG_WW_MUTEX_SLOWPATH
206 Enable debug tracing of failures to gracefully handle drm modeset lock
207 contention. A history of each drm modeset lock path hitting -EDEADLK
208 will be saved until gracefully handled, and the backtrace will be
209 printed when attempting to lock a contended lock.
211 If in doubt, say "N".
213 config DRM_FBDEV_EMULATION
214 bool "Enable legacy fbdev support for your modesetting driver"
216 select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
219 Choose this option if you have a need for the legacy fbdev
220 support. Note that this support also provides the linux console
221 support on top of your modesetting driver.
223 If in doubt, say "Y".
225 config DRM_FBDEV_OVERALLOC
226 int "Overallocation of the fbdev buffer"
227 depends on DRM_FBDEV_EMULATION
230 Defines the fbdev buffer overallocation in percent. Default
231 is 100. Typical values for double buffering will be 200,
232 triple buffering 300.
234 config DRM_FBDEV_LEAK_PHYS_SMEM
235 bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)"
236 depends on DRM_FBDEV_EMULATION && EXPERT
239 In order to keep user-space compatibility, we want in certain
240 use-cases to keep leaking the fbdev physical address to the
241 user-space program handling the fbdev buffer.
242 This affects, not only, Amlogic, Allwinner or Rockchip devices
243 with ARM Mali GPUs using an userspace Blob.
244 This option is not supported by upstream developers and should be
245 removed as soon as possible and be considered as a broken and
246 legacy behaviour from a modern fbdev device driver.
248 Please send any bug reports when using this to your proprietary
249 software vendor that requires this.
251 If in doubt, say "N" or spread the word to your closed source
254 config DRM_LOAD_EDID_FIRMWARE
255 bool "Allow to specify an EDID data set instead of probing for it"
258 Say Y here, if you want to use EDID data to be loaded from the
259 /lib/firmware directory or one of the provided built-in
260 data sets. This may be necessary, if the graphics adapter or
261 monitor are unable to provide appropriate EDID data. Since this
262 feature is provided as a workaround for broken hardware, the
263 default case is N. Details and instructions how to build your own
264 EDID data are given in Documentation/admin-guide/edid.rst.
266 source "drivers/gpu/drm/display/Kconfig"
270 depends on DRM && MMU
272 GPU memory management subsystem for devices with multiple
273 GPU memory types. Will be enabled automatically if a device driver
276 config DRM_TTM_KUNIT_TEST
277 tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS
279 depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST)
282 select DRM_EXPORT_FOR_TESTS if m
283 select DRM_KUNIT_TEST_HELPERS
284 default KUNIT_ALL_TESTS
286 Enables unit tests for TTM, a GPU memory manager subsystem used
287 to manage memory buffers. This option is mostly useful for kernel
288 developers. It depends on (UML || COMPILE_TEST) since no other driver
289 which uses TTM can be loaded while running the tests.
291 If in doubt, say "N".
297 Execution context for command submissions
304 GPU-VM representation providing helpers to manage a GPUs virtual
311 A page based buddy allocator
313 config DRM_VRAM_HELPER
317 Helpers for VRAM memory management
319 config DRM_TTM_HELPER
324 Helpers for ttm-based gem objects
326 config DRM_GEM_DMA_HELPER
329 select FB_DMAMEM_HELPERS if DRM_FBDEV_EMULATION
331 Choose this if you need the GEM DMA helper functions
333 config DRM_GEM_SHMEM_HELPER
335 depends on DRM && MMU
337 Choose this if you need the GEM shmem helper functions
339 config DRM_SUBALLOC_HELPER
347 source "drivers/gpu/drm/i2c/Kconfig"
349 source "drivers/gpu/drm/arm/Kconfig"
351 source "drivers/gpu/drm/radeon/Kconfig"
353 source "drivers/gpu/drm/amd/amdgpu/Kconfig"
355 source "drivers/gpu/drm/nouveau/Kconfig"
357 source "drivers/gpu/drm/i915/Kconfig"
359 source "drivers/gpu/drm/xe/Kconfig"
361 source "drivers/gpu/drm/kmb/Kconfig"
364 tristate "Virtual GEM provider"
365 depends on DRM && MMU
366 select DRM_GEM_SHMEM_HELPER
368 Choose this option to get a virtual graphics memory manager,
369 as used by Mesa's software renderer for enhanced performance.
370 If M is selected the module will be called vgem.
372 source "drivers/gpu/drm/vkms/Kconfig"
374 source "drivers/gpu/drm/exynos/Kconfig"
376 source "drivers/gpu/drm/rockchip/Kconfig"
378 source "drivers/gpu/drm/vmwgfx/Kconfig"
380 source "drivers/gpu/drm/gma500/Kconfig"
382 source "drivers/gpu/drm/udl/Kconfig"
384 source "drivers/gpu/drm/ast/Kconfig"
386 source "drivers/gpu/drm/mgag200/Kconfig"
388 source "drivers/gpu/drm/armada/Kconfig"
390 source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
392 source "drivers/gpu/drm/renesas/Kconfig"
394 source "drivers/gpu/drm/sun4i/Kconfig"
396 source "drivers/gpu/drm/omapdrm/Kconfig"
398 source "drivers/gpu/drm/tilcdc/Kconfig"
400 source "drivers/gpu/drm/qxl/Kconfig"
402 source "drivers/gpu/drm/virtio/Kconfig"
404 source "drivers/gpu/drm/msm/Kconfig"
406 source "drivers/gpu/drm/fsl-dcu/Kconfig"
408 source "drivers/gpu/drm/tegra/Kconfig"
410 source "drivers/gpu/drm/stm/Kconfig"
412 source "drivers/gpu/drm/panel/Kconfig"
414 source "drivers/gpu/drm/bridge/Kconfig"
416 source "drivers/gpu/drm/sti/Kconfig"
418 source "drivers/gpu/drm/imx/Kconfig"
420 source "drivers/gpu/drm/ingenic/Kconfig"
422 source "drivers/gpu/drm/v3d/Kconfig"
424 source "drivers/gpu/drm/vc4/Kconfig"
426 source "drivers/gpu/drm/loongson/Kconfig"
428 source "drivers/gpu/drm/etnaviv/Kconfig"
430 source "drivers/gpu/drm/hisilicon/Kconfig"
432 source "drivers/gpu/drm/logicvc/Kconfig"
434 source "drivers/gpu/drm/mediatek/Kconfig"
436 source "drivers/gpu/drm/mxsfb/Kconfig"
438 source "drivers/gpu/drm/meson/Kconfig"
440 source "drivers/gpu/drm/tiny/Kconfig"
442 source "drivers/gpu/drm/pl111/Kconfig"
444 source "drivers/gpu/drm/tve200/Kconfig"
446 source "drivers/gpu/drm/xen/Kconfig"
448 source "drivers/gpu/drm/vboxvideo/Kconfig"
450 source "drivers/gpu/drm/lima/Kconfig"
452 source "drivers/gpu/drm/panfrost/Kconfig"
454 source "drivers/gpu/drm/panthor/Kconfig"
456 source "drivers/gpu/drm/aspeed/Kconfig"
458 source "drivers/gpu/drm/mcde/Kconfig"
460 source "drivers/gpu/drm/tidss/Kconfig"
462 source "drivers/gpu/drm/xlnx/Kconfig"
464 source "drivers/gpu/drm/gud/Kconfig"
466 source "drivers/gpu/drm/solomon/Kconfig"
468 source "drivers/gpu/drm/sprd/Kconfig"
470 source "drivers/gpu/drm/imagination/Kconfig"
473 tristate "DRM Support for Hyper-V synthetic video device"
474 depends on DRM && PCI && MMU && HYPERV
475 select DRM_KMS_HELPER
476 select DRM_GEM_SHMEM_HELPER
478 This is a KMS driver for Hyper-V synthetic video device. Choose this
479 option if you would like to enable drm driver for Hyper-V virtual
480 machine. Unselect Hyper-V framebuffer driver (CONFIG_FB_HYPERV) so
481 that DRM driver is used by default.
483 If M is selected the module will be called hyperv_drm.
485 config DRM_EXPORT_FOR_TESTS
488 config DRM_LIB_RANDOM
492 config DRM_PRIVACY_SCREEN
497 bool "Compile the drm subsystem with warnings as errors"
498 depends on DRM && EXPERT
502 A kernel build should not cause any compiler warnings, and this
503 enables the '-Werror' flag to enforce that rule in the drm subsystem.
505 The drm subsystem enables more warnings than the kernel default, so
506 this config option is disabled by default.
512 # Separate option because drm_panel_orientation_quirks.c is shared with fbdev
513 config DRM_PANEL_ORIENTATION_QUIRKS