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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Drm device configuration
4#
5# This driver provides support for the
6# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
7#
8menuconfig DRM
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 HDMI
13 select I2C
14 select DMA_SHARED_BUFFER
15 select SYNC_FILE
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.
18 select KCMP
19 select VIDEO_CMDLINE
20 select VIDEO_NOMODESET
21 help
22 Kernel-level support for the Direct Rendering Infrastructure (DRI)
23 introduced in XFree86 4.0. If you say Y here, you need to select
24 the module that's right for your graphics card from the list below.
25 These modules provide support for synchronization, security, and
26 DMA transfers. Please see <http://dri.sourceforge.net/> for more
27 details. You should also select and configure AGP
28 (/dev/agpgart) support if it is available for your platform.
29
30config DRM_MIPI_DBI
31 tristate
32 depends on DRM
33 select DRM_KMS_HELPER
34
35config DRM_MIPI_DSI
36 bool
37 depends on DRM
38
39config DRM_DEBUG_MM
40 bool "Insert extra checks and debug info into the DRM range managers"
41 default n
42 depends on DRM=y
43 depends on STACKTRACE_SUPPORT
44 select STACKDEPOT
45 help
46 Enable allocation tracking of memory manager and leak detection on
47 shutdown.
48
49 Recommended for driver developers only.
50
51 If in doubt, say "N".
52
53config DRM_USE_DYNAMIC_DEBUG
54 bool "use dynamic debug to implement drm.debug"
55 default n
56 depends on BROKEN
57 depends on DRM
58 depends on DYNAMIC_DEBUG || DYNAMIC_DEBUG_CORE
59 depends on JUMP_LABEL
60 help
61 Use dynamic-debug to avoid drm_debug_enabled() runtime overheads.
62 Due to callsite counts in DRM drivers (~4k in amdgpu) and 56
63 bytes per callsite, the .data costs can be substantial, and
64 are therefore configurable.
65
66config DRM_KUNIT_TEST_HELPERS
67 tristate
68 depends on DRM && KUNIT
69 help
70 KUnit Helpers for KMS drivers.
71
72config DRM_KUNIT_TEST
73 tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS
74 depends on DRM && KUNIT
75 select PRIME_NUMBERS
76 select DRM_DISPLAY_DP_HELPER
77 select DRM_DISPLAY_HELPER
78 select DRM_LIB_RANDOM
79 select DRM_KMS_HELPER
80 select DRM_BUDDY
81 select DRM_EXPORT_FOR_TESTS if m
82 select DRM_KUNIT_TEST_HELPERS
83 default KUNIT_ALL_TESTS
84 help
85 This builds unit tests for DRM. This option is not useful for
86 distributions or general kernels, but only for kernel
87 developers working on DRM and associated drivers.
88
89 For more information on KUnit and unit tests in general,
90 please refer to the KUnit documentation in
91 Documentation/dev-tools/kunit/.
92
93 If in doubt, say "N".
94
95config DRM_KMS_HELPER
96 tristate
97 depends on DRM
98 help
99 CRTC helpers for KMS drivers.
100
101config DRM_DEBUG_DP_MST_TOPOLOGY_REFS
102 bool "Enable refcount backtrace history in the DP MST helpers"
103 depends on STACKTRACE_SUPPORT
104 select STACKDEPOT
105 depends on DRM_KMS_HELPER
106 depends on DEBUG_KERNEL
107 depends on EXPERT
108 help
109 Enables debug tracing for topology refs in DRM's DP MST helpers. A
110 history of each topology reference/dereference will be printed to the
111 kernel log once a port or branch device's topology refcount reaches 0.
112
113 This has the potential to use a lot of memory and print some very
114 large kernel messages. If in doubt, say "N".
115
116config DRM_DEBUG_MODESET_LOCK
117 bool "Enable backtrace history for lock contention"
118 depends on STACKTRACE_SUPPORT
119 depends on DEBUG_KERNEL
120 depends on EXPERT
121 select STACKDEPOT
122 default y if DEBUG_WW_MUTEX_SLOWPATH
123 help
124 Enable debug tracing of failures to gracefully handle drm modeset lock
125 contention. A history of each drm modeset lock path hitting -EDEADLK
126 will be saved until gracefully handled, and the backtrace will be
127 printed when attempting to lock a contended lock.
128
129 If in doubt, say "N".
130
131config DRM_FBDEV_EMULATION
132 bool "Enable legacy fbdev support for your modesetting driver"
133 depends on DRM_KMS_HELPER
134 depends on FB=y || FB=DRM_KMS_HELPER
135 select FB_CFB_FILLRECT
136 select FB_CFB_COPYAREA
137 select FB_CFB_IMAGEBLIT
138 select FB_DEFERRED_IO
139 select FB_SYS_FOPS
140 select FB_SYS_FILLRECT
141 select FB_SYS_COPYAREA
142 select FB_SYS_IMAGEBLIT
143 select FRAMEBUFFER_CONSOLE if !EXPERT
144 select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
145 default y
146 help
147 Choose this option if you have a need for the legacy fbdev
148 support. Note that this support also provides the linux console
149 support on top of your modesetting driver.
150
151 If in doubt, say "Y".
152
153config DRM_FBDEV_OVERALLOC
154 int "Overallocation of the fbdev buffer"
155 depends on DRM_FBDEV_EMULATION
156 default 100
157 help
158 Defines the fbdev buffer overallocation in percent. Default
159 is 100. Typical values for double buffering will be 200,
160 triple buffering 300.
161
162config DRM_FBDEV_LEAK_PHYS_SMEM
163 bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)"
164 depends on DRM_FBDEV_EMULATION && EXPERT
165 default n
166 help
167 In order to keep user-space compatibility, we want in certain
168 use-cases to keep leaking the fbdev physical address to the
169 user-space program handling the fbdev buffer.
170 This affects, not only, Amlogic, Allwinner or Rockchip devices
171 with ARM Mali GPUs using an userspace Blob.
172 This option is not supported by upstream developers and should be
173 removed as soon as possible and be considered as a broken and
174 legacy behaviour from a modern fbdev device driver.
175
176 Please send any bug reports when using this to your proprietary
177 software vendor that requires this.
178
179 If in doubt, say "N" or spread the word to your closed source
180 library vendor.
181
182config DRM_LOAD_EDID_FIRMWARE
183 bool "Allow to specify an EDID data set instead of probing for it"
184 depends on DRM
185 help
186 Say Y here, if you want to use EDID data to be loaded from the
187 /lib/firmware directory or one of the provided built-in
188 data sets. This may be necessary, if the graphics adapter or
189 monitor are unable to provide appropriate EDID data. Since this
190 feature is provided as a workaround for broken hardware, the
191 default case is N. Details and instructions how to build your own
192 EDID data are given in Documentation/admin-guide/edid.rst.
193
194source "drivers/gpu/drm/display/Kconfig"
195
196config DRM_TTM
197 tristate
198 depends on DRM && MMU
199 help
200 GPU memory management subsystem for devices with multiple
201 GPU memory types. Will be enabled automatically if a device driver
202 uses it.
203
204config DRM_BUDDY
205 tristate
206 depends on DRM
207 help
208 A page based buddy allocator
209
210config DRM_VRAM_HELPER
211 tristate
212 depends on DRM
213 help
214 Helpers for VRAM memory management
215
216config DRM_TTM_HELPER
217 tristate
218 depends on DRM
219 select DRM_TTM
220 help
221 Helpers for ttm-based gem objects
222
223config DRM_GEM_DMA_HELPER
224 tristate
225 depends on DRM
226 help
227 Choose this if you need the GEM DMA helper functions
228
229config DRM_GEM_SHMEM_HELPER
230 tristate
231 depends on DRM && MMU
232 help
233 Choose this if you need the GEM shmem helper functions
234
235config DRM_SUBALLOC_HELPER
236 tristate
237 depends on DRM
238
239config DRM_SCHED
240 tristate
241 depends on DRM
242
243source "drivers/gpu/drm/i2c/Kconfig"
244
245source "drivers/gpu/drm/arm/Kconfig"
246
247source "drivers/gpu/drm/radeon/Kconfig"
248
249source "drivers/gpu/drm/amd/amdgpu/Kconfig"
250
251source "drivers/gpu/drm/nouveau/Kconfig"
252
253source "drivers/gpu/drm/i915/Kconfig"
254
255source "drivers/gpu/drm/kmb/Kconfig"
256
257config DRM_VGEM
258 tristate "Virtual GEM provider"
259 depends on DRM && MMU
260 select DRM_GEM_SHMEM_HELPER
261 help
262 Choose this option to get a virtual graphics memory manager,
263 as used by Mesa's software renderer for enhanced performance.
264 If M is selected the module will be called vgem.
265
266config DRM_VKMS
267 tristate "Virtual KMS (EXPERIMENTAL)"
268 depends on DRM && MMU
269 select DRM_KMS_HELPER
270 select DRM_GEM_SHMEM_HELPER
271 select CRC32
272 default n
273 help
274 Virtual Kernel Mode-Setting (VKMS) is used for testing or for
275 running GPU in a headless machines. Choose this option to get
276 a VKMS.
277
278 If M is selected the module will be called vkms.
279
280source "drivers/gpu/drm/exynos/Kconfig"
281
282source "drivers/gpu/drm/rockchip/Kconfig"
283
284source "drivers/gpu/drm/vmwgfx/Kconfig"
285
286source "drivers/gpu/drm/gma500/Kconfig"
287
288source "drivers/gpu/drm/udl/Kconfig"
289
290source "drivers/gpu/drm/ast/Kconfig"
291
292source "drivers/gpu/drm/mgag200/Kconfig"
293
294source "drivers/gpu/drm/armada/Kconfig"
295
296source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
297
298source "drivers/gpu/drm/rcar-du/Kconfig"
299
300source "drivers/gpu/drm/shmobile/Kconfig"
301
302source "drivers/gpu/drm/sun4i/Kconfig"
303
304source "drivers/gpu/drm/omapdrm/Kconfig"
305
306source "drivers/gpu/drm/tilcdc/Kconfig"
307
308source "drivers/gpu/drm/qxl/Kconfig"
309
310source "drivers/gpu/drm/virtio/Kconfig"
311
312source "drivers/gpu/drm/msm/Kconfig"
313
314source "drivers/gpu/drm/fsl-dcu/Kconfig"
315
316source "drivers/gpu/drm/tegra/Kconfig"
317
318source "drivers/gpu/drm/stm/Kconfig"
319
320source "drivers/gpu/drm/panel/Kconfig"
321
322source "drivers/gpu/drm/bridge/Kconfig"
323
324source "drivers/gpu/drm/sti/Kconfig"
325
326source "drivers/gpu/drm/imx/Kconfig"
327
328source "drivers/gpu/drm/ingenic/Kconfig"
329
330source "drivers/gpu/drm/v3d/Kconfig"
331
332source "drivers/gpu/drm/vc4/Kconfig"
333
334source "drivers/gpu/drm/etnaviv/Kconfig"
335
336source "drivers/gpu/drm/hisilicon/Kconfig"
337
338source "drivers/gpu/drm/logicvc/Kconfig"
339
340source "drivers/gpu/drm/mediatek/Kconfig"
341
342source "drivers/gpu/drm/mxsfb/Kconfig"
343
344source "drivers/gpu/drm/meson/Kconfig"
345
346source "drivers/gpu/drm/tiny/Kconfig"
347
348source "drivers/gpu/drm/pl111/Kconfig"
349
350source "drivers/gpu/drm/tve200/Kconfig"
351
352source "drivers/gpu/drm/xen/Kconfig"
353
354source "drivers/gpu/drm/vboxvideo/Kconfig"
355
356source "drivers/gpu/drm/lima/Kconfig"
357
358source "drivers/gpu/drm/panfrost/Kconfig"
359
360source "drivers/gpu/drm/aspeed/Kconfig"
361
362source "drivers/gpu/drm/mcde/Kconfig"
363
364source "drivers/gpu/drm/tidss/Kconfig"
365
366source "drivers/gpu/drm/xlnx/Kconfig"
367
368source "drivers/gpu/drm/gud/Kconfig"
369
370source "drivers/gpu/drm/solomon/Kconfig"
371
372source "drivers/gpu/drm/sprd/Kconfig"
373
374config DRM_HYPERV
375 tristate "DRM Support for Hyper-V synthetic video device"
376 depends on DRM && PCI && MMU && HYPERV
377 select DRM_KMS_HELPER
378 select DRM_GEM_SHMEM_HELPER
379 help
380 This is a KMS driver for Hyper-V synthetic video device. Choose this
381 option if you would like to enable drm driver for Hyper-V virtual
382 machine. Unselect Hyper-V framebuffer driver (CONFIG_FB_HYPERV) so
383 that DRM driver is used by default.
384
385 If M is selected the module will be called hyperv_drm.
386
387# Keep legacy drivers last
388
389menuconfig DRM_LEGACY
390 bool "Enable legacy drivers (DANGEROUS)"
391 depends on DRM && MMU
392 help
393 Enable legacy DRI1 drivers. Those drivers expose unsafe and dangerous
394 APIs to user-space, which can be used to circumvent access
395 restrictions and other security measures. For backwards compatibility
396 those drivers are still available, but their use is highly
397 inadvisable and might harm your system.
398
399 You are recommended to use the safe modeset-only drivers instead, and
400 perform 3D emulation in user-space.
401
402 Unless you have strong reasons to go rogue, say "N".
403
404if DRM_LEGACY
405# leave here to list legacy drivers
406endif # DRM_LEGACY
407
408config DRM_EXPORT_FOR_TESTS
409 bool
410
411# Separate option because drm_panel_orientation_quirks.c is shared with fbdev
412config DRM_PANEL_ORIENTATION_QUIRKS
413 tristate
414
415config DRM_LIB_RANDOM
416 bool
417 default n
418
419config DRM_PRIVACY_SCREEN
420 bool
421 default n