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 20 help 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. 28 29if DRM 30 31config DRM_MIPI_DBI 32 tristate 33 depends on DRM 34 select DRM_KMS_HELPER 35 36config DRM_MIPI_DSI 37 bool 38 depends on DRM 39 40config DRM_DEBUG_MM 41 bool "Insert extra checks and debug info into the DRM range managers" 42 default n 43 depends on DRM 44 depends on STACKTRACE_SUPPORT 45 select STACKDEPOT 46 help 47 Enable allocation tracking of memory manager and leak detection on 48 shutdown. 49 50 Recommended for driver developers only. 51 52 If in doubt, say "N". 53 54config DRM_USE_DYNAMIC_DEBUG 55 bool "use dynamic debug to implement drm.debug" 56 default n 57 depends on BROKEN 58 depends on DRM 59 depends on DYNAMIC_DEBUG || DYNAMIC_DEBUG_CORE 60 depends on JUMP_LABEL 61 help 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. 66 67config DRM_KUNIT_TEST_HELPERS 68 tristate 69 depends on DRM && KUNIT 70 select DRM_KMS_HELPER 71 help 72 KUnit Helpers for KMS drivers. 73 74config DRM_KUNIT_TEST 75 tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS 76 depends on DRM && KUNIT && MMU 77 select DRM_BUDDY 78 select DRM_DISPLAY_DP_HELPER 79 select DRM_DISPLAY_HDMI_STATE_HELPER 80 select DRM_DISPLAY_HELPER 81 select DRM_EXEC 82 select DRM_EXPORT_FOR_TESTS if m 83 select DRM_GEM_SHMEM_HELPER 84 select DRM_KUNIT_TEST_HELPERS 85 select DRM_LIB_RANDOM 86 select PRIME_NUMBERS 87 default KUNIT_ALL_TESTS 88 help 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. 92 93 For more information on KUnit and unit tests in general, 94 please refer to the KUnit documentation in 95 Documentation/dev-tools/kunit/. 96 97 If in doubt, say "N". 98 99config DRM_KMS_HELPER 100 tristate 101 depends on DRM 102 select FB_CORE if DRM_FBDEV_EMULATION 103 help 104 CRTC helpers for KMS drivers. 105 106config DRM_PANIC 107 bool "Display a user-friendly message when a kernel panic occurs" 108 depends on DRM 109 select FONT_SUPPORT 110 help 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 116 FONT_TER16x32 117 118config DRM_PANIC_FOREGROUND_COLOR 119 hex "Drm panic screen foreground color, in RGB" 120 depends on DRM_PANIC 121 default 0xffffff 122 123config DRM_PANIC_BACKGROUND_COLOR 124 hex "Drm panic screen background color, in RGB" 125 depends on DRM_PANIC 126 default 0x000000 127 128config DRM_PANIC_DEBUG 129 bool "Add a debug fs entry to trigger drm_panic" 130 depends on DRM_PANIC && DEBUG_FS 131 help 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". 136 137config DRM_PANIC_SCREEN 138 string "Panic screen formatter" 139 default "user" 140 depends on DRM_PANIC 141 help 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 145 lines of kmsg. 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 148 Default is "user" 149 150config DRM_PANIC_SCREEN_QR_CODE 151 bool "Add a panic screen with a QR code" 152 depends on DRM_PANIC && RUST 153 select ZLIB_DEFLATE 154 help 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" 160 161config 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 164 help 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 171 172config DRM_PANIC_SCREEN_QR_VERSION 173 int "Maximum version (size) of the QR code." 174 depends on DRM_PANIC_SCREEN_QR_CODE 175 default 40 176 help 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 180 data. Default is 40. 181 182config DRM_DEBUG_DP_MST_TOPOLOGY_REFS 183 bool "Enable refcount backtrace history in the DP MST helpers" 184 depends on STACKTRACE_SUPPORT 185 select STACKDEPOT 186 depends on DRM_KMS_HELPER 187 depends on DEBUG_KERNEL 188 depends on EXPERT 189 help 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. 193 194 This has the potential to use a lot of memory and print some very 195 large kernel messages. If in doubt, say "N". 196 197config DRM_DEBUG_MODESET_LOCK 198 bool "Enable backtrace history for lock contention" 199 depends on STACKTRACE_SUPPORT 200 depends on DEBUG_KERNEL 201 depends on EXPERT 202 select STACKDEPOT 203 default y if DEBUG_WW_MUTEX_SLOWPATH 204 help 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. 209 210 If in doubt, say "N". 211 212config DRM_CLIENT 213 bool 214 depends on DRM 215 help 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. 220 221config DRM_CLIENT_LIB 222 tristate 223 depends on DRM 224 select DRM_KMS_HELPER if DRM_FBDEV_EMULATION 225 select FB_CORE if DRM_FBDEV_EMULATION 226 help 227 This option enables the DRM client library and selects all 228 modules and components according to the enabled clients. 229 230config DRM_CLIENT_SELECTION 231 tristate 232 depends on DRM 233 select DRM_CLIENT_LIB if DRM_FBDEV_EMULATION 234 help 235 Drivers that support in-kernel DRM clients have to select this 236 option. 237 238config DRM_CLIENT_SETUP 239 bool 240 depends on DRM_CLIENT_SELECTION 241 help 242 Enables the DRM client selection. DRM drivers that support the 243 default clients should select DRM_CLIENT_SELECTION instead. 244 245menu "Supported DRM clients" 246 depends on DRM_CLIENT_SELECTION 247 248config DRM_FBDEV_EMULATION 249 bool "Enable legacy fbdev support for your modesetting driver" 250 depends on DRM_CLIENT_SELECTION 251 select DRM_CLIENT 252 select DRM_CLIENT_SETUP 253 select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE 254 default FB 255 help 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. 259 260 If in doubt, say "Y". 261 262config DRM_FBDEV_OVERALLOC 263 int "Overallocation of the fbdev buffer" 264 depends on DRM_FBDEV_EMULATION 265 default 100 266 help 267 Defines the fbdev buffer overallocation in percent. Default 268 is 100. Typical values for double buffering will be 200, 269 triple buffering 300. 270 271config DRM_FBDEV_LEAK_PHYS_SMEM 272 bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)" 273 depends on DRM_FBDEV_EMULATION && EXPERT 274 default n 275 help 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. 284 285 Please send any bug reports when using this to your proprietary 286 software vendor that requires this. 287 288 If in doubt, say "N" or spread the word to your closed source 289 library vendor. 290 291endmenu 292 293config DRM_LOAD_EDID_FIRMWARE 294 bool "Allow to specify an EDID data set instead of probing for it" 295 depends on DRM 296 help 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. 304 305source "drivers/gpu/drm/display/Kconfig" 306 307config DRM_TTM 308 tristate 309 depends on DRM && MMU 310 help 311 GPU memory management subsystem for devices with multiple 312 GPU memory types. Will be enabled automatically if a device driver 313 uses it. 314 315config DRM_TTM_KUNIT_TEST 316 tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS 317 default n 318 depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST) 319 select DRM_TTM 320 select DRM_BUDDY 321 select DRM_EXPORT_FOR_TESTS if m 322 select DRM_KUNIT_TEST_HELPERS 323 default KUNIT_ALL_TESTS 324 help 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. 329 330 If in doubt, say "N". 331 332config DRM_EXEC 333 tristate 334 depends on DRM 335 help 336 Execution context for command submissions 337 338config DRM_GPUVM 339 tristate 340 depends on DRM 341 select DRM_EXEC 342 help 343 GPU-VM representation providing helpers to manage a GPUs virtual 344 address space 345 346config DRM_BUDDY 347 tristate 348 depends on DRM 349 help 350 A page based buddy allocator 351 352config DRM_VRAM_HELPER 353 tristate 354 depends on DRM 355 help 356 Helpers for VRAM memory management 357 358config DRM_TTM_HELPER 359 tristate 360 depends on DRM 361 select DRM_TTM 362 select FB_CORE if DRM_FBDEV_EMULATION 363 select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION 364 help 365 Helpers for ttm-based gem objects 366 367config DRM_GEM_DMA_HELPER 368 tristate 369 depends on DRM 370 select FB_CORE if DRM_FBDEV_EMULATION 371 select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION 372 help 373 Choose this if you need the GEM DMA helper functions 374 375config DRM_GEM_SHMEM_HELPER 376 tristate 377 depends on DRM && MMU 378 select FB_CORE if DRM_FBDEV_EMULATION 379 select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION 380 help 381 Choose this if you need the GEM shmem helper functions 382 383config DRM_SUBALLOC_HELPER 384 tristate 385 depends on DRM 386 387config DRM_SCHED 388 tristate 389 depends on DRM 390 391source "drivers/gpu/drm/i2c/Kconfig" 392 393source "drivers/gpu/drm/arm/Kconfig" 394 395source "drivers/gpu/drm/radeon/Kconfig" 396 397source "drivers/gpu/drm/amd/amdgpu/Kconfig" 398 399source "drivers/gpu/drm/nouveau/Kconfig" 400 401source "drivers/gpu/drm/i915/Kconfig" 402 403source "drivers/gpu/drm/xe/Kconfig" 404 405source "drivers/gpu/drm/kmb/Kconfig" 406 407config DRM_VGEM 408 tristate "Virtual GEM provider" 409 depends on DRM && MMU 410 select DRM_GEM_SHMEM_HELPER 411 help 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. 415 416source "drivers/gpu/drm/vkms/Kconfig" 417 418source "drivers/gpu/drm/exynos/Kconfig" 419 420source "drivers/gpu/drm/rockchip/Kconfig" 421 422source "drivers/gpu/drm/vmwgfx/Kconfig" 423 424source "drivers/gpu/drm/gma500/Kconfig" 425 426source "drivers/gpu/drm/udl/Kconfig" 427 428source "drivers/gpu/drm/ast/Kconfig" 429 430source "drivers/gpu/drm/mgag200/Kconfig" 431 432source "drivers/gpu/drm/armada/Kconfig" 433 434source "drivers/gpu/drm/atmel-hlcdc/Kconfig" 435 436source "drivers/gpu/drm/renesas/Kconfig" 437 438source "drivers/gpu/drm/sun4i/Kconfig" 439 440source "drivers/gpu/drm/omapdrm/Kconfig" 441 442source "drivers/gpu/drm/tilcdc/Kconfig" 443 444source "drivers/gpu/drm/qxl/Kconfig" 445 446source "drivers/gpu/drm/virtio/Kconfig" 447 448source "drivers/gpu/drm/msm/Kconfig" 449 450source "drivers/gpu/drm/fsl-dcu/Kconfig" 451 452source "drivers/gpu/drm/tegra/Kconfig" 453 454source "drivers/gpu/drm/stm/Kconfig" 455 456source "drivers/gpu/drm/panel/Kconfig" 457 458source "drivers/gpu/drm/bridge/Kconfig" 459 460source "drivers/gpu/drm/sti/Kconfig" 461 462source "drivers/gpu/drm/imx/Kconfig" 463 464source "drivers/gpu/drm/ingenic/Kconfig" 465 466source "drivers/gpu/drm/v3d/Kconfig" 467 468source "drivers/gpu/drm/vc4/Kconfig" 469 470source "drivers/gpu/drm/loongson/Kconfig" 471 472source "drivers/gpu/drm/etnaviv/Kconfig" 473 474source "drivers/gpu/drm/hisilicon/Kconfig" 475 476source "drivers/gpu/drm/logicvc/Kconfig" 477 478source "drivers/gpu/drm/mediatek/Kconfig" 479 480source "drivers/gpu/drm/mxsfb/Kconfig" 481 482source "drivers/gpu/drm/meson/Kconfig" 483 484source "drivers/gpu/drm/tiny/Kconfig" 485 486source "drivers/gpu/drm/pl111/Kconfig" 487 488source "drivers/gpu/drm/tve200/Kconfig" 489 490source "drivers/gpu/drm/xen/Kconfig" 491 492source "drivers/gpu/drm/vboxvideo/Kconfig" 493 494source "drivers/gpu/drm/lima/Kconfig" 495 496source "drivers/gpu/drm/panfrost/Kconfig" 497 498source "drivers/gpu/drm/panthor/Kconfig" 499 500source "drivers/gpu/drm/aspeed/Kconfig" 501 502source "drivers/gpu/drm/mcde/Kconfig" 503 504source "drivers/gpu/drm/tidss/Kconfig" 505 506source "drivers/gpu/drm/xlnx/Kconfig" 507 508source "drivers/gpu/drm/gud/Kconfig" 509 510source "drivers/gpu/drm/solomon/Kconfig" 511 512source "drivers/gpu/drm/sprd/Kconfig" 513 514source "drivers/gpu/drm/imagination/Kconfig" 515 516config DRM_HYPERV 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 522 help 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. 527 528 If M is selected the module will be called hyperv_drm. 529 530config DRM_EXPORT_FOR_TESTS 531 bool 532 533config DRM_LIB_RANDOM 534 bool 535 default n 536 537config DRM_PRIVACY_SCREEN 538 bool 539 default n 540 541config DRM_WERROR 542 bool "Compile the drm subsystem with warnings as errors" 543 depends on DRM && EXPERT 544 depends on !WERROR 545 default n 546 help 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. 549 550 The drm subsystem enables more warnings than the kernel default, so 551 this config option is disabled by default. 552 553 If in doubt, say N. 554 555endif 556 557# Separate option because drm_panel_orientation_quirks.c is shared with fbdev 558config DRM_PANEL_ORIENTATION_QUIRKS 559 tristate 560