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 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 15 select HDMI 16 select I2C 17 select DMA_SHARED_BUFFER 18 select SYNC_FILE 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. 21 select KCMP 22 select VIDEO 23 help 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. 31 32if DRM 33 34config DRM_MIPI_DBI 35 tristate 36 depends on DRM 37 select DRM_KMS_HELPER 38 39config DRM_MIPI_DSI 40 bool 41 depends on DRM 42 43config DRM_DEBUG_MM 44 bool "Insert extra checks and debug info into the DRM range managers" 45 default n 46 depends on DRM 47 depends on STACKTRACE_SUPPORT 48 select STACKDEPOT 49 help 50 Enable allocation tracking of memory manager and leak detection on 51 shutdown. 52 53 Recommended for driver developers only. 54 55 If in doubt, say "N". 56 57config DRM_USE_DYNAMIC_DEBUG 58 bool "use dynamic debug to implement drm.debug" 59 default n 60 depends on BROKEN 61 depends on DRM 62 depends on DYNAMIC_DEBUG || DYNAMIC_DEBUG_CORE 63 depends on JUMP_LABEL 64 help 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. 69 70config DRM_KUNIT_TEST_HELPERS 71 tristate 72 depends on DRM && KUNIT 73 select DRM_KMS_HELPER 74 help 75 KUnit Helpers for KMS drivers. 76 77config DRM_KUNIT_TEST 78 tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS 79 depends on DRM && KUNIT && MMU 80 select DRM_BUDDY 81 select DRM_DISPLAY_DP_HELPER 82 select DRM_DISPLAY_HDMI_STATE_HELPER 83 select DRM_DISPLAY_HELPER 84 select DRM_EXEC 85 select DRM_EXPORT_FOR_TESTS if m 86 select DRM_GEM_SHMEM_HELPER 87 select DRM_KUNIT_TEST_HELPERS 88 select DRM_LIB_RANDOM 89 select PRIME_NUMBERS 90 default KUNIT_ALL_TESTS 91 help 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. 95 96 For more information on KUnit and unit tests in general, 97 please refer to the KUnit documentation in 98 Documentation/dev-tools/kunit/. 99 100 If in doubt, say "N". 101 102config DRM_KMS_HELPER 103 tristate 104 depends on DRM 105 help 106 CRTC helpers for KMS drivers. 107 108config DRM_PANIC 109 bool "Display a user-friendly message when a kernel panic occurs" 110 depends on DRM 111 select FONT_SUPPORT 112 help 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 118 FONT_TER16x32 119 120config DRM_PANIC_FOREGROUND_COLOR 121 hex "Drm panic screen foreground color, in RGB" 122 depends on DRM_PANIC 123 default 0xffffff 124 125config DRM_PANIC_BACKGROUND_COLOR 126 hex "Drm panic screen background color, in RGB" 127 depends on DRM_PANIC 128 default 0x000000 129 130config DRM_PANIC_DEBUG 131 bool "Add a debug fs entry to trigger drm_panic" 132 depends on DRM_PANIC && DEBUG_FS 133 help 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". 138 139config DRM_PANIC_SCREEN 140 string "Panic screen formatter" 141 default "user" 142 depends on DRM_PANIC 143 help 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 147 lines of kmsg. 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 150 Default is "user" 151 152config DRM_PANIC_SCREEN_QR_CODE 153 bool "Add a panic screen with a QR code" 154 depends on DRM_PANIC && RUST 155 select ZLIB_DEFLATE 156 help 157 This option adds a QR code generator, and a panic screen with a QR 158 code. The QR code will contain the last lines of kmsg and other debug 159 information. This should be easier for the user to report a kernel 160 panic, with all debug information available. 161 To use this panic screen, also set DRM_PANIC_SCREEN to "qr_code" 162 163config DRM_PANIC_SCREEN_QR_CODE_URL 164 string "Base URL of the QR code in the panic screen" 165 depends on DRM_PANIC_SCREEN_QR_CODE 166 help 167 This option sets the base URL to report the kernel panic. If it's set 168 the QR code will contain the URL and the kmsg compressed with zlib as 169 a URL parameter. If it's empty, the QR code will contain the kmsg as 170 uncompressed text only. 171 There is a demo code in javascript, to decode and uncompress the kmsg 172 data from the URL parameter at https://github.com/kdj0c/panic_report 173 174config DRM_PANIC_SCREEN_QR_VERSION 175 int "Maximum version (size) of the QR code." 176 depends on DRM_PANIC_SCREEN_QR_CODE 177 default 40 178 help 179 This option limits the version (or size) of the QR code. QR code 180 version ranges from Version 1 (21x21) to Version 40 (177x177). 181 Smaller QR code are easier to read, but will contain less debugging 182 data. Default is 40. 183 184config DRM_DEBUG_DP_MST_TOPOLOGY_REFS 185 bool "Enable refcount backtrace history in the DP MST helpers" 186 depends on STACKTRACE_SUPPORT 187 select STACKDEPOT 188 depends on DRM_KMS_HELPER 189 depends on DEBUG_KERNEL 190 depends on EXPERT 191 help 192 Enables debug tracing for topology refs in DRM's DP MST helpers. A 193 history of each topology reference/dereference will be printed to the 194 kernel log once a port or branch device's topology refcount reaches 0. 195 196 This has the potential to use a lot of memory and print some very 197 large kernel messages. If in doubt, say "N". 198 199config DRM_DEBUG_MODESET_LOCK 200 bool "Enable backtrace history for lock contention" 201 depends on STACKTRACE_SUPPORT 202 depends on DEBUG_KERNEL 203 depends on EXPERT 204 select STACKDEPOT 205 default y if DEBUG_WW_MUTEX_SLOWPATH 206 help 207 Enable debug tracing of failures to gracefully handle drm modeset lock 208 contention. A history of each drm modeset lock path hitting -EDEADLK 209 will be saved until gracefully handled, and the backtrace will be 210 printed when attempting to lock a contended lock. 211 212 If in doubt, say "N". 213 214config DRM_CLIENT_SELECTION 215 bool 216 depends on DRM 217 select DRM_CLIENT_SETUP if DRM_FBDEV_EMULATION 218 help 219 Drivers that support in-kernel DRM clients have to select this 220 option. 221 222config DRM_CLIENT_SETUP 223 bool 224 depends on DRM_CLIENT_SELECTION 225 226config DRM_FBDEV_EMULATION 227 bool "Enable legacy fbdev support for your modesetting driver" 228 depends on DRM 229 select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE 230 default FB 231 help 232 Choose this option if you have a need for the legacy fbdev 233 support. Note that this support also provides the linux console 234 support on top of your modesetting driver. 235 236 If in doubt, say "Y". 237 238config DRM_FBDEV_OVERALLOC 239 int "Overallocation of the fbdev buffer" 240 depends on DRM_FBDEV_EMULATION 241 default 100 242 help 243 Defines the fbdev buffer overallocation in percent. Default 244 is 100. Typical values for double buffering will be 200, 245 triple buffering 300. 246 247config DRM_FBDEV_LEAK_PHYS_SMEM 248 bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)" 249 depends on DRM_FBDEV_EMULATION && EXPERT 250 default n 251 help 252 In order to keep user-space compatibility, we want in certain 253 use-cases to keep leaking the fbdev physical address to the 254 user-space program handling the fbdev buffer. 255 This affects, not only, Amlogic, Allwinner or Rockchip devices 256 with ARM Mali GPUs using an userspace Blob. 257 This option is not supported by upstream developers and should be 258 removed as soon as possible and be considered as a broken and 259 legacy behaviour from a modern fbdev device driver. 260 261 Please send any bug reports when using this to your proprietary 262 software vendor that requires this. 263 264 If in doubt, say "N" or spread the word to your closed source 265 library vendor. 266 267config DRM_LOAD_EDID_FIRMWARE 268 bool "Allow to specify an EDID data set instead of probing for it" 269 depends on DRM 270 help 271 Say Y here, if you want to use EDID data to be loaded from the 272 /lib/firmware directory or one of the provided built-in 273 data sets. This may be necessary, if the graphics adapter or 274 monitor are unable to provide appropriate EDID data. Since this 275 feature is provided as a workaround for broken hardware, the 276 default case is N. Details and instructions how to build your own 277 EDID data are given in Documentation/admin-guide/edid.rst. 278 279source "drivers/gpu/drm/display/Kconfig" 280 281config DRM_TTM 282 tristate 283 depends on DRM && MMU 284 help 285 GPU memory management subsystem for devices with multiple 286 GPU memory types. Will be enabled automatically if a device driver 287 uses it. 288 289config DRM_TTM_KUNIT_TEST 290 tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS 291 default n 292 depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST) 293 select DRM_TTM 294 select DRM_BUDDY 295 select DRM_EXPORT_FOR_TESTS if m 296 select DRM_KUNIT_TEST_HELPERS 297 default KUNIT_ALL_TESTS 298 help 299 Enables unit tests for TTM, a GPU memory manager subsystem used 300 to manage memory buffers. This option is mostly useful for kernel 301 developers. It depends on (UML || COMPILE_TEST) since no other driver 302 which uses TTM can be loaded while running the tests. 303 304 If in doubt, say "N". 305 306config DRM_EXEC 307 tristate 308 depends on DRM 309 help 310 Execution context for command submissions 311 312config DRM_GPUVM 313 tristate 314 depends on DRM 315 select DRM_EXEC 316 help 317 GPU-VM representation providing helpers to manage a GPUs virtual 318 address space 319 320config DRM_BUDDY 321 tristate 322 depends on DRM 323 help 324 A page based buddy allocator 325 326config DRM_VRAM_HELPER 327 tristate 328 depends on DRM 329 help 330 Helpers for VRAM memory management 331 332config DRM_TTM_HELPER 333 tristate 334 depends on DRM 335 select DRM_TTM 336 help 337 Helpers for ttm-based gem objects 338 339config DRM_GEM_DMA_HELPER 340 tristate 341 depends on DRM 342 select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION 343 help 344 Choose this if you need the GEM DMA helper functions 345 346config DRM_GEM_SHMEM_HELPER 347 tristate 348 depends on DRM && MMU 349 help 350 Choose this if you need the GEM shmem helper functions 351 352config DRM_SUBALLOC_HELPER 353 tristate 354 depends on DRM 355 356config DRM_SCHED 357 tristate 358 depends on DRM 359 360source "drivers/gpu/drm/i2c/Kconfig" 361 362source "drivers/gpu/drm/arm/Kconfig" 363 364source "drivers/gpu/drm/radeon/Kconfig" 365 366source "drivers/gpu/drm/amd/amdgpu/Kconfig" 367 368source "drivers/gpu/drm/nouveau/Kconfig" 369 370source "drivers/gpu/drm/i915/Kconfig" 371 372source "drivers/gpu/drm/xe/Kconfig" 373 374source "drivers/gpu/drm/kmb/Kconfig" 375 376config DRM_VGEM 377 tristate "Virtual GEM provider" 378 depends on DRM && MMU 379 select DRM_GEM_SHMEM_HELPER 380 help 381 Choose this option to get a virtual graphics memory manager, 382 as used by Mesa's software renderer for enhanced performance. 383 If M is selected the module will be called vgem. 384 385source "drivers/gpu/drm/vkms/Kconfig" 386 387source "drivers/gpu/drm/exynos/Kconfig" 388 389source "drivers/gpu/drm/rockchip/Kconfig" 390 391source "drivers/gpu/drm/vmwgfx/Kconfig" 392 393source "drivers/gpu/drm/gma500/Kconfig" 394 395source "drivers/gpu/drm/udl/Kconfig" 396 397source "drivers/gpu/drm/ast/Kconfig" 398 399source "drivers/gpu/drm/mgag200/Kconfig" 400 401source "drivers/gpu/drm/armada/Kconfig" 402 403source "drivers/gpu/drm/atmel-hlcdc/Kconfig" 404 405source "drivers/gpu/drm/renesas/Kconfig" 406 407source "drivers/gpu/drm/sun4i/Kconfig" 408 409source "drivers/gpu/drm/omapdrm/Kconfig" 410 411source "drivers/gpu/drm/tilcdc/Kconfig" 412 413source "drivers/gpu/drm/qxl/Kconfig" 414 415source "drivers/gpu/drm/virtio/Kconfig" 416 417source "drivers/gpu/drm/msm/Kconfig" 418 419source "drivers/gpu/drm/fsl-dcu/Kconfig" 420 421source "drivers/gpu/drm/tegra/Kconfig" 422 423source "drivers/gpu/drm/stm/Kconfig" 424 425source "drivers/gpu/drm/panel/Kconfig" 426 427source "drivers/gpu/drm/bridge/Kconfig" 428 429source "drivers/gpu/drm/sti/Kconfig" 430 431source "drivers/gpu/drm/imx/Kconfig" 432 433source "drivers/gpu/drm/ingenic/Kconfig" 434 435source "drivers/gpu/drm/v3d/Kconfig" 436 437source "drivers/gpu/drm/vc4/Kconfig" 438 439source "drivers/gpu/drm/loongson/Kconfig" 440 441source "drivers/gpu/drm/etnaviv/Kconfig" 442 443source "drivers/gpu/drm/hisilicon/Kconfig" 444 445source "drivers/gpu/drm/logicvc/Kconfig" 446 447source "drivers/gpu/drm/mediatek/Kconfig" 448 449source "drivers/gpu/drm/mxsfb/Kconfig" 450 451source "drivers/gpu/drm/meson/Kconfig" 452 453source "drivers/gpu/drm/tiny/Kconfig" 454 455source "drivers/gpu/drm/pl111/Kconfig" 456 457source "drivers/gpu/drm/tve200/Kconfig" 458 459source "drivers/gpu/drm/xen/Kconfig" 460 461source "drivers/gpu/drm/vboxvideo/Kconfig" 462 463source "drivers/gpu/drm/lima/Kconfig" 464 465source "drivers/gpu/drm/panfrost/Kconfig" 466 467source "drivers/gpu/drm/panthor/Kconfig" 468 469source "drivers/gpu/drm/aspeed/Kconfig" 470 471source "drivers/gpu/drm/mcde/Kconfig" 472 473source "drivers/gpu/drm/tidss/Kconfig" 474 475source "drivers/gpu/drm/xlnx/Kconfig" 476 477source "drivers/gpu/drm/gud/Kconfig" 478 479source "drivers/gpu/drm/solomon/Kconfig" 480 481source "drivers/gpu/drm/sprd/Kconfig" 482 483source "drivers/gpu/drm/imagination/Kconfig" 484 485config DRM_HYPERV 486 tristate "DRM Support for Hyper-V synthetic video device" 487 depends on DRM && PCI && MMU && HYPERV 488 select DRM_CLIENT_SELECTION 489 select DRM_KMS_HELPER 490 select DRM_GEM_SHMEM_HELPER 491 help 492 This is a KMS driver for Hyper-V synthetic video device. Choose this 493 option if you would like to enable drm driver for Hyper-V virtual 494 machine. Unselect Hyper-V framebuffer driver (CONFIG_FB_HYPERV) so 495 that DRM driver is used by default. 496 497 If M is selected the module will be called hyperv_drm. 498 499config DRM_EXPORT_FOR_TESTS 500 bool 501 502config DRM_LIB_RANDOM 503 bool 504 default n 505 506config DRM_PRIVACY_SCREEN 507 bool 508 default n 509 510config DRM_WERROR 511 bool "Compile the drm subsystem with warnings as errors" 512 depends on DRM && EXPERT 513 depends on !WERROR 514 default n 515 help 516 A kernel build should not cause any compiler warnings, and this 517 enables the '-Werror' flag to enforce that rule in the drm subsystem. 518 519 The drm subsystem enables more warnings than the kernel default, so 520 this config option is disabled by default. 521 522 If in doubt, say N. 523 524endif 525 526# Separate option because drm_panel_orientation_quirks.c is shared with fbdev 527config DRM_PANEL_ORIENTATION_QUIRKS 528 tristate 529