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"
110 depends on DRM && !(FRAMEBUFFER_CONSOLE && VT_CONSOLE)
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_DEBUG_DP_MST_TOPOLOGY_REFS
153 bool "Enable refcount backtrace history in the DP MST helpers"
154 depends on STACKTRACE_SUPPORT
156 depends on DRM_KMS_HELPER
157 depends on DEBUG_KERNEL
160 Enables debug tracing for topology refs in DRM's DP MST helpers. A
161 history of each topology reference/dereference will be printed to the
162 kernel log once a port or branch device's topology refcount reaches 0.
164 This has the potential to use a lot of memory and print some very
165 large kernel messages. If in doubt, say "N".
167 config DRM_DEBUG_MODESET_LOCK
168 bool "Enable backtrace history for lock contention"
169 depends on STACKTRACE_SUPPORT
170 depends on DEBUG_KERNEL
173 default y if DEBUG_WW_MUTEX_SLOWPATH
175 Enable debug tracing of failures to gracefully handle drm modeset lock
176 contention. A history of each drm modeset lock path hitting -EDEADLK
177 will be saved until gracefully handled, and the backtrace will be
178 printed when attempting to lock a contended lock.
180 If in doubt, say "N".
182 config DRM_FBDEV_EMULATION
183 bool "Enable legacy fbdev support for your modesetting driver"
185 select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
188 Choose this option if you have a need for the legacy fbdev
189 support. Note that this support also provides the linux console
190 support on top of your modesetting driver.
192 If in doubt, say "Y".
194 config DRM_FBDEV_OVERALLOC
195 int "Overallocation of the fbdev buffer"
196 depends on DRM_FBDEV_EMULATION
199 Defines the fbdev buffer overallocation in percent. Default
200 is 100. Typical values for double buffering will be 200,
201 triple buffering 300.
203 config DRM_FBDEV_LEAK_PHYS_SMEM
204 bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)"
205 depends on DRM_FBDEV_EMULATION && EXPERT
208 In order to keep user-space compatibility, we want in certain
209 use-cases to keep leaking the fbdev physical address to the
210 user-space program handling the fbdev buffer.
211 This affects, not only, Amlogic, Allwinner or Rockchip devices
212 with ARM Mali GPUs using an userspace Blob.
213 This option is not supported by upstream developers and should be
214 removed as soon as possible and be considered as a broken and
215 legacy behaviour from a modern fbdev device driver.
217 Please send any bug reports when using this to your proprietary
218 software vendor that requires this.
220 If in doubt, say "N" or spread the word to your closed source
223 config DRM_LOAD_EDID_FIRMWARE
224 bool "Allow to specify an EDID data set instead of probing for it"
227 Say Y here, if you want to use EDID data to be loaded from the
228 /lib/firmware directory or one of the provided built-in
229 data sets. This may be necessary, if the graphics adapter or
230 monitor are unable to provide appropriate EDID data. Since this
231 feature is provided as a workaround for broken hardware, the
232 default case is N. Details and instructions how to build your own
233 EDID data are given in Documentation/admin-guide/edid.rst.
235 source "drivers/gpu/drm/display/Kconfig"
239 depends on DRM && MMU
241 GPU memory management subsystem for devices with multiple
242 GPU memory types. Will be enabled automatically if a device driver
245 config DRM_TTM_KUNIT_TEST
246 tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS
248 depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST)
251 select DRM_EXPORT_FOR_TESTS if m
252 select DRM_KUNIT_TEST_HELPERS
253 default KUNIT_ALL_TESTS
255 Enables unit tests for TTM, a GPU memory manager subsystem used
256 to manage memory buffers. This option is mostly useful for kernel
257 developers. It depends on (UML || COMPILE_TEST) since no other driver
258 which uses TTM can be loaded while running the tests.
260 If in doubt, say "N".
266 Execution context for command submissions
272 GPU-VM representation providing helpers to manage a GPUs virtual
279 A page based buddy allocator
281 config DRM_VRAM_HELPER
285 Helpers for VRAM memory management
287 config DRM_TTM_HELPER
292 Helpers for ttm-based gem objects
294 config DRM_GEM_DMA_HELPER
297 select FB_DMAMEM_HELPERS if DRM_FBDEV_EMULATION
299 Choose this if you need the GEM DMA helper functions
301 config DRM_GEM_SHMEM_HELPER
303 depends on DRM && MMU
305 Choose this if you need the GEM shmem helper functions
307 config DRM_SUBALLOC_HELPER
315 source "drivers/gpu/drm/i2c/Kconfig"
317 source "drivers/gpu/drm/arm/Kconfig"
319 source "drivers/gpu/drm/radeon/Kconfig"
321 source "drivers/gpu/drm/amd/amdgpu/Kconfig"
323 source "drivers/gpu/drm/nouveau/Kconfig"
325 source "drivers/gpu/drm/i915/Kconfig"
327 source "drivers/gpu/drm/xe/Kconfig"
329 source "drivers/gpu/drm/kmb/Kconfig"
332 tristate "Virtual GEM provider"
333 depends on DRM && MMU
334 select DRM_GEM_SHMEM_HELPER
336 Choose this option to get a virtual graphics memory manager,
337 as used by Mesa's software renderer for enhanced performance.
338 If M is selected the module will be called vgem.
340 source "drivers/gpu/drm/vkms/Kconfig"
342 source "drivers/gpu/drm/exynos/Kconfig"
344 source "drivers/gpu/drm/rockchip/Kconfig"
346 source "drivers/gpu/drm/vmwgfx/Kconfig"
348 source "drivers/gpu/drm/gma500/Kconfig"
350 source "drivers/gpu/drm/udl/Kconfig"
352 source "drivers/gpu/drm/ast/Kconfig"
354 source "drivers/gpu/drm/mgag200/Kconfig"
356 source "drivers/gpu/drm/armada/Kconfig"
358 source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
360 source "drivers/gpu/drm/renesas/Kconfig"
362 source "drivers/gpu/drm/sun4i/Kconfig"
364 source "drivers/gpu/drm/omapdrm/Kconfig"
366 source "drivers/gpu/drm/tilcdc/Kconfig"
368 source "drivers/gpu/drm/qxl/Kconfig"
370 source "drivers/gpu/drm/virtio/Kconfig"
372 source "drivers/gpu/drm/msm/Kconfig"
374 source "drivers/gpu/drm/fsl-dcu/Kconfig"
376 source "drivers/gpu/drm/tegra/Kconfig"
378 source "drivers/gpu/drm/stm/Kconfig"
380 source "drivers/gpu/drm/panel/Kconfig"
382 source "drivers/gpu/drm/bridge/Kconfig"
384 source "drivers/gpu/drm/sti/Kconfig"
386 source "drivers/gpu/drm/imx/Kconfig"
388 source "drivers/gpu/drm/ingenic/Kconfig"
390 source "drivers/gpu/drm/v3d/Kconfig"
392 source "drivers/gpu/drm/vc4/Kconfig"
394 source "drivers/gpu/drm/loongson/Kconfig"
396 source "drivers/gpu/drm/etnaviv/Kconfig"
398 source "drivers/gpu/drm/hisilicon/Kconfig"
400 source "drivers/gpu/drm/logicvc/Kconfig"
402 source "drivers/gpu/drm/mediatek/Kconfig"
404 source "drivers/gpu/drm/mxsfb/Kconfig"
406 source "drivers/gpu/drm/meson/Kconfig"
408 source "drivers/gpu/drm/tiny/Kconfig"
410 source "drivers/gpu/drm/pl111/Kconfig"
412 source "drivers/gpu/drm/tve200/Kconfig"
414 source "drivers/gpu/drm/xen/Kconfig"
416 source "drivers/gpu/drm/vboxvideo/Kconfig"
418 source "drivers/gpu/drm/lima/Kconfig"
420 source "drivers/gpu/drm/panfrost/Kconfig"
422 source "drivers/gpu/drm/panthor/Kconfig"
424 source "drivers/gpu/drm/aspeed/Kconfig"
426 source "drivers/gpu/drm/mcde/Kconfig"
428 source "drivers/gpu/drm/tidss/Kconfig"
430 source "drivers/gpu/drm/xlnx/Kconfig"
432 source "drivers/gpu/drm/gud/Kconfig"
434 source "drivers/gpu/drm/solomon/Kconfig"
436 source "drivers/gpu/drm/sprd/Kconfig"
438 source "drivers/gpu/drm/imagination/Kconfig"
441 tristate "DRM Support for Hyper-V synthetic video device"
442 depends on DRM && PCI && MMU && HYPERV
443 select DRM_KMS_HELPER
444 select DRM_GEM_SHMEM_HELPER
446 This is a KMS driver for Hyper-V synthetic video device. Choose this
447 option if you would like to enable drm driver for Hyper-V virtual
448 machine. Unselect Hyper-V framebuffer driver (CONFIG_FB_HYPERV) so
449 that DRM driver is used by default.
451 If M is selected the module will be called hyperv_drm.
453 config DRM_EXPORT_FOR_TESTS
456 config DRM_LIB_RANDOM
460 config DRM_PRIVACY_SCREEN
465 bool "Compile the drm subsystem with warnings as errors"
466 depends on DRM && EXPERT
470 A kernel build should not cause any compiler warnings, and this
471 enables the '-Werror' flag to enforce that rule in the drm subsystem.
473 The drm subsystem enables more warnings than the kernel default, so
474 this config option is disabled by default.
480 # Separate option because drm_panel_orientation_quirks.c is shared with fbdev
481 config DRM_PANEL_ORIENTATION_QUIRKS