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 HDMI 15 select I2C 16 select DMA_SHARED_BUFFER 17 select SYNC_FILE 18# gallium uses SYS_kcmp for os_same_file_description() to de-duplicate 19# device and dmabuf fd. Let's make sure that is available for our userspace. 20 select KCMP 21 select VIDEO 22 help 23 Kernel-level support for the Direct Rendering Infrastructure (DRI) 24 introduced in XFree86 4.0. If you say Y here, you need to select 25 the module that's right for your graphics card from the list below. 26 These modules provide support for synchronization, security, and 27 DMA transfers. Please see <http://dri.sourceforge.net/> for more 28 details. You should also select and configure AGP 29 (/dev/agpgart) support if it is available for your platform. 30 31if DRM 32 33config DRM_MIPI_DBI 34 tristate 35 depends on DRM 36 select DRM_KMS_HELPER 37 38config DRM_MIPI_DSI 39 bool 40 depends on DRM 41 42config DRM_DEBUG_MM 43 bool "Insert extra checks and debug info into the DRM range managers" 44 default n 45 depends on DRM 46 depends on STACKTRACE_SUPPORT 47 select STACKDEPOT 48 help 49 Enable allocation tracking of memory manager and leak detection on 50 shutdown. 51 52 Recommended for driver developers only. 53 54 If in doubt, say "N". 55 56config DRM_USE_DYNAMIC_DEBUG 57 bool "use dynamic debug to implement drm.debug" 58 default n 59 depends on BROKEN 60 depends on DRM 61 depends on DYNAMIC_DEBUG || DYNAMIC_DEBUG_CORE 62 depends on JUMP_LABEL 63 help 64 Use dynamic-debug to avoid drm_debug_enabled() runtime overheads. 65 Due to callsite counts in DRM drivers (~4k in amdgpu) and 56 66 bytes per callsite, the .data costs can be substantial, and 67 are therefore configurable. 68 69config DRM_KUNIT_TEST_HELPERS 70 tristate 71 depends on DRM && KUNIT 72 select DRM_KMS_HELPER 73 help 74 KUnit Helpers for KMS drivers. 75 76config DRM_KUNIT_TEST 77 tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS 78 depends on DRM && KUNIT && MMU 79 select DRM_BUDDY 80 select DRM_DISPLAY_DP_HELPER 81 select DRM_DISPLAY_HDMI_STATE_HELPER 82 select DRM_DISPLAY_HELPER 83 select DRM_EXEC 84 select DRM_EXPORT_FOR_TESTS if m 85 select DRM_GEM_SHMEM_HELPER 86 select DRM_KUNIT_TEST_HELPERS 87 select DRM_LIB_RANDOM 88 select PRIME_NUMBERS 89 default KUNIT_ALL_TESTS 90 help 91 This builds unit tests for DRM. This option is not useful for 92 distributions or general kernels, but only for kernel 93 developers working on DRM and associated drivers. 94 95 For more information on KUnit and unit tests in general, 96 please refer to the KUnit documentation in 97 Documentation/dev-tools/kunit/. 98 99 If in doubt, say "N". 100 101config DRM_KMS_HELPER 102 tristate 103 depends on DRM 104 help 105 CRTC helpers for KMS drivers. 106 107config DRM_PANIC 108 bool "Display a user-friendly message when a kernel panic occurs" 109 depends on DRM 110 select FONT_SUPPORT 111 help 112 Enable a drm panic handler, which will display a user-friendly message 113 when a kernel panic occurs. It's useful when using a user-space 114 console instead of fbcon. 115 It will only work if your graphic driver supports this feature. 116 To support Hi-DPI Display, you can enable bigger fonts like 117 FONT_TER16x32 118 119config DRM_PANIC_FOREGROUND_COLOR 120 hex "Drm panic screen foreground color, in RGB" 121 depends on DRM_PANIC 122 default 0xffffff 123 124config DRM_PANIC_BACKGROUND_COLOR 125 hex "Drm panic screen background color, in RGB" 126 depends on DRM_PANIC 127 default 0x000000 128 129config DRM_PANIC_DEBUG 130 bool "Add a debug fs entry to trigger drm_panic" 131 depends on DRM_PANIC && DEBUG_FS 132 help 133 Add dri/[device]/drm_panic_plane_x in the kernel debugfs, to force the 134 panic handler to write the panic message to this plane scanout buffer. 135 This is unsafe and should not be enabled on a production build. 136 If in doubt, say "N". 137 138config DRM_PANIC_SCREEN 139 string "Panic screen formatter" 140 default "user" 141 depends on DRM_PANIC 142 help 143 This option enable to choose what will be displayed when a kernel 144 panic occurs. You can choose between "user", a short message telling 145 the user to reboot the system, or "kmsg" which will display the last 146 lines of kmsg. 147 This can also be overridden by drm.panic_screen=xxxx kernel parameter 148 or by writing to /sys/module/drm/parameters/panic_screen sysfs entry 149 Default is "user" 150 151config DRM_PANIC_SCREEN_QR_CODE 152 bool "Add a panic screen with a QR code" 153 depends on DRM_PANIC && RUST 154 select ZLIB_DEFLATE 155 help 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" 161 162config 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 165 help 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 172 173config DRM_PANIC_SCREEN_QR_VERSION 174 int "Maximum version (size) of the QR code." 175 depends on DRM_PANIC_SCREEN_QR_CODE 176 default 40 177 help 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 181 data. Default is 40. 182 183config DRM_DEBUG_DP_MST_TOPOLOGY_REFS 184 bool "Enable refcount backtrace history in the DP MST helpers" 185 depends on STACKTRACE_SUPPORT 186 select STACKDEPOT 187 depends on DRM_KMS_HELPER 188 depends on DEBUG_KERNEL 189 depends on EXPERT 190 help 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. 194 195 This has the potential to use a lot of memory and print some very 196 large kernel messages. If in doubt, say "N". 197 198config DRM_DEBUG_MODESET_LOCK 199 bool "Enable backtrace history for lock contention" 200 depends on STACKTRACE_SUPPORT 201 depends on DEBUG_KERNEL 202 depends on EXPERT 203 select STACKDEPOT 204 default y if DEBUG_WW_MUTEX_SLOWPATH 205 help 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. 210 211 If in doubt, say "N". 212 213config DRM_CLIENT 214 bool 215 depends on DRM 216 help 217 Enables support for DRM clients. DRM drivers that need 218 struct drm_client_dev and its interfaces should select this 219 option. Drivers that support the default clients should 220 select DRM_CLIENT_SELECTION instead. 221 222config DRM_CLIENT_SELECTION 223 bool 224 depends on DRM 225 select DRM_CLIENT_SETUP if DRM_FBDEV_EMULATION 226 help 227 Drivers that support in-kernel DRM clients have to select this 228 option. 229 230config DRM_CLIENT_SETUP 231 bool 232 depends on DRM_CLIENT_SELECTION 233 234config DRM_FBDEV_EMULATION 235 bool "Enable legacy fbdev support for your modesetting driver" 236 depends on DRM 237 select DRM_CLIENT 238 select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE 239 default FB 240 help 241 Choose this option if you have a need for the legacy fbdev 242 support. Note that this support also provides the linux console 243 support on top of your modesetting driver. 244 245 If in doubt, say "Y". 246 247config DRM_FBDEV_OVERALLOC 248 int "Overallocation of the fbdev buffer" 249 depends on DRM_FBDEV_EMULATION 250 default 100 251 help 252 Defines the fbdev buffer overallocation in percent. Default 253 is 100. Typical values for double buffering will be 200, 254 triple buffering 300. 255 256config DRM_FBDEV_LEAK_PHYS_SMEM 257 bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)" 258 depends on DRM_FBDEV_EMULATION && EXPERT 259 default n 260 help 261 In order to keep user-space compatibility, we want in certain 262 use-cases to keep leaking the fbdev physical address to the 263 user-space program handling the fbdev buffer. 264 This affects, not only, Amlogic, Allwinner or Rockchip devices 265 with ARM Mali GPUs using an userspace Blob. 266 This option is not supported by upstream developers and should be 267 removed as soon as possible and be considered as a broken and 268 legacy behaviour from a modern fbdev device driver. 269 270 Please send any bug reports when using this to your proprietary 271 software vendor that requires this. 272 273 If in doubt, say "N" or spread the word to your closed source 274 library vendor. 275 276config DRM_LOAD_EDID_FIRMWARE 277 bool "Allow to specify an EDID data set instead of probing for it" 278 depends on DRM 279 help 280 Say Y here, if you want to use EDID data to be loaded from the 281 /lib/firmware directory or one of the provided built-in 282 data sets. This may be necessary, if the graphics adapter or 283 monitor are unable to provide appropriate EDID data. Since this 284 feature is provided as a workaround for broken hardware, the 285 default case is N. Details and instructions how to build your own 286 EDID data are given in Documentation/admin-guide/edid.rst. 287 288source "drivers/gpu/drm/display/Kconfig" 289 290config DRM_TTM 291 tristate 292 depends on DRM && MMU 293 help 294 GPU memory management subsystem for devices with multiple 295 GPU memory types. Will be enabled automatically if a device driver 296 uses it. 297 298config DRM_TTM_KUNIT_TEST 299 tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS 300 default n 301 depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST) 302 select DRM_TTM 303 select DRM_BUDDY 304 select DRM_EXPORT_FOR_TESTS if m 305 select DRM_KUNIT_TEST_HELPERS 306 default KUNIT_ALL_TESTS 307 help 308 Enables unit tests for TTM, a GPU memory manager subsystem used 309 to manage memory buffers. This option is mostly useful for kernel 310 developers. It depends on (UML || COMPILE_TEST) since no other driver 311 which uses TTM can be loaded while running the tests. 312 313 If in doubt, say "N". 314 315config DRM_EXEC 316 tristate 317 depends on DRM 318 help 319 Execution context for command submissions 320 321config DRM_GPUVM 322 tristate 323 depends on DRM 324 select DRM_EXEC 325 help 326 GPU-VM representation providing helpers to manage a GPUs virtual 327 address space 328 329config DRM_BUDDY 330 tristate 331 depends on DRM 332 help 333 A page based buddy allocator 334 335config DRM_VRAM_HELPER 336 tristate 337 depends on DRM 338 help 339 Helpers for VRAM memory management 340 341config DRM_TTM_HELPER 342 tristate 343 depends on DRM 344 select DRM_TTM 345 select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION 346 help 347 Helpers for ttm-based gem objects 348 349config DRM_GEM_DMA_HELPER 350 tristate 351 depends on DRM 352 select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION 353 help 354 Choose this if you need the GEM DMA helper functions 355 356config DRM_GEM_SHMEM_HELPER 357 tristate 358 depends on DRM && MMU 359 select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION 360 help 361 Choose this if you need the GEM shmem helper functions 362 363config DRM_SUBALLOC_HELPER 364 tristate 365 depends on DRM 366 367config DRM_SCHED 368 tristate 369 depends on DRM 370 371source "drivers/gpu/drm/i2c/Kconfig" 372 373source "drivers/gpu/drm/arm/Kconfig" 374 375source "drivers/gpu/drm/radeon/Kconfig" 376 377source "drivers/gpu/drm/amd/amdgpu/Kconfig" 378 379source "drivers/gpu/drm/nouveau/Kconfig" 380 381source "drivers/gpu/drm/i915/Kconfig" 382 383source "drivers/gpu/drm/xe/Kconfig" 384 385source "drivers/gpu/drm/kmb/Kconfig" 386 387config DRM_VGEM 388 tristate "Virtual GEM provider" 389 depends on DRM && MMU 390 select DRM_GEM_SHMEM_HELPER 391 help 392 Choose this option to get a virtual graphics memory manager, 393 as used by Mesa's software renderer for enhanced performance. 394 If M is selected the module will be called vgem. 395 396source "drivers/gpu/drm/vkms/Kconfig" 397 398source "drivers/gpu/drm/exynos/Kconfig" 399 400source "drivers/gpu/drm/rockchip/Kconfig" 401 402source "drivers/gpu/drm/vmwgfx/Kconfig" 403 404source "drivers/gpu/drm/gma500/Kconfig" 405 406source "drivers/gpu/drm/udl/Kconfig" 407 408source "drivers/gpu/drm/ast/Kconfig" 409 410source "drivers/gpu/drm/mgag200/Kconfig" 411 412source "drivers/gpu/drm/armada/Kconfig" 413 414source "drivers/gpu/drm/atmel-hlcdc/Kconfig" 415 416source "drivers/gpu/drm/renesas/Kconfig" 417 418source "drivers/gpu/drm/sun4i/Kconfig" 419 420source "drivers/gpu/drm/omapdrm/Kconfig" 421 422source "drivers/gpu/drm/tilcdc/Kconfig" 423 424source "drivers/gpu/drm/qxl/Kconfig" 425 426source "drivers/gpu/drm/virtio/Kconfig" 427 428source "drivers/gpu/drm/msm/Kconfig" 429 430source "drivers/gpu/drm/fsl-dcu/Kconfig" 431 432source "drivers/gpu/drm/tegra/Kconfig" 433 434source "drivers/gpu/drm/stm/Kconfig" 435 436source "drivers/gpu/drm/panel/Kconfig" 437 438source "drivers/gpu/drm/bridge/Kconfig" 439 440source "drivers/gpu/drm/sti/Kconfig" 441 442source "drivers/gpu/drm/imx/Kconfig" 443 444source "drivers/gpu/drm/ingenic/Kconfig" 445 446source "drivers/gpu/drm/v3d/Kconfig" 447 448source "drivers/gpu/drm/vc4/Kconfig" 449 450source "drivers/gpu/drm/loongson/Kconfig" 451 452source "drivers/gpu/drm/etnaviv/Kconfig" 453 454source "drivers/gpu/drm/hisilicon/Kconfig" 455 456source "drivers/gpu/drm/logicvc/Kconfig" 457 458source "drivers/gpu/drm/mediatek/Kconfig" 459 460source "drivers/gpu/drm/mxsfb/Kconfig" 461 462source "drivers/gpu/drm/meson/Kconfig" 463 464source "drivers/gpu/drm/tiny/Kconfig" 465 466source "drivers/gpu/drm/pl111/Kconfig" 467 468source "drivers/gpu/drm/tve200/Kconfig" 469 470source "drivers/gpu/drm/xen/Kconfig" 471 472source "drivers/gpu/drm/vboxvideo/Kconfig" 473 474source "drivers/gpu/drm/lima/Kconfig" 475 476source "drivers/gpu/drm/panfrost/Kconfig" 477 478source "drivers/gpu/drm/panthor/Kconfig" 479 480source "drivers/gpu/drm/aspeed/Kconfig" 481 482source "drivers/gpu/drm/mcde/Kconfig" 483 484source "drivers/gpu/drm/tidss/Kconfig" 485 486source "drivers/gpu/drm/xlnx/Kconfig" 487 488source "drivers/gpu/drm/gud/Kconfig" 489 490source "drivers/gpu/drm/solomon/Kconfig" 491 492source "drivers/gpu/drm/sprd/Kconfig" 493 494source "drivers/gpu/drm/imagination/Kconfig" 495 496config DRM_HYPERV 497 tristate "DRM Support for Hyper-V synthetic video device" 498 depends on DRM && PCI && MMU && HYPERV 499 select DRM_CLIENT_SELECTION 500 select DRM_KMS_HELPER 501 select DRM_GEM_SHMEM_HELPER 502 help 503 This is a KMS driver for Hyper-V synthetic video device. Choose this 504 option if you would like to enable drm driver for Hyper-V virtual 505 machine. Unselect Hyper-V framebuffer driver (CONFIG_FB_HYPERV) so 506 that DRM driver is used by default. 507 508 If M is selected the module will be called hyperv_drm. 509 510config DRM_EXPORT_FOR_TESTS 511 bool 512 513config DRM_LIB_RANDOM 514 bool 515 default n 516 517config DRM_PRIVACY_SCREEN 518 bool 519 default n 520 521config DRM_WERROR 522 bool "Compile the drm subsystem with warnings as errors" 523 depends on DRM && EXPERT 524 depends on !WERROR 525 default n 526 help 527 A kernel build should not cause any compiler warnings, and this 528 enables the '-Werror' flag to enforce that rule in the drm subsystem. 529 530 The drm subsystem enables more warnings than the kernel default, so 531 this config option is disabled by default. 532 533 If in doubt, say N. 534 535endif 536 537# Separate option because drm_panel_orientation_quirks.c is shared with fbdev 538config DRM_PANEL_ORIENTATION_QUIRKS 539 tristate 540