18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_ciconfig DRM_I915_WERROR 38c2ecf20Sopenharmony_ci bool "Force GCC to throw an error instead of a warning when compiling" 48c2ecf20Sopenharmony_ci # As this may inadvertently break the build, only allow the user 58c2ecf20Sopenharmony_ci # to shoot oneself in the foot iff they aim really hard 68c2ecf20Sopenharmony_ci depends on EXPERT 78c2ecf20Sopenharmony_ci # We use the dependency on !COMPILE_TEST to not be enabled in 88c2ecf20Sopenharmony_ci # allmodconfig or allyesconfig configurations 98c2ecf20Sopenharmony_ci depends on !COMPILE_TEST 108c2ecf20Sopenharmony_ci default n 118c2ecf20Sopenharmony_ci help 128c2ecf20Sopenharmony_ci Add -Werror to the build flags for (and only for) i915.ko. 138c2ecf20Sopenharmony_ci Do not enable this unless you are writing code for the i915.ko module. 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci Recommended for driver developers only. 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci If in doubt, say "N". 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ciconfig DRM_I915_DEBUG 208c2ecf20Sopenharmony_ci bool "Enable additional driver debugging" 218c2ecf20Sopenharmony_ci depends on DRM_I915 228c2ecf20Sopenharmony_ci select DEBUG_FS 238c2ecf20Sopenharmony_ci select PREEMPT_COUNT 248c2ecf20Sopenharmony_ci select I2C_CHARDEV 258c2ecf20Sopenharmony_ci select STACKDEPOT 268c2ecf20Sopenharmony_ci select DRM_DP_AUX_CHARDEV 278c2ecf20Sopenharmony_ci select X86_MSR # used by igt/pm_rpm 288c2ecf20Sopenharmony_ci select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks) 298c2ecf20Sopenharmony_ci select DRM_DEBUG_MM if DRM=y 308c2ecf20Sopenharmony_ci select DRM_EXPORT_FOR_TESTS if m 318c2ecf20Sopenharmony_ci select DRM_DEBUG_SELFTEST 328c2ecf20Sopenharmony_ci select DMABUF_SELFTESTS 338c2ecf20Sopenharmony_ci select SW_SYNC # signaling validation framework (igt/syncobj*) 348c2ecf20Sopenharmony_ci select DRM_I915_SW_FENCE_DEBUG_OBJECTS 358c2ecf20Sopenharmony_ci select DRM_I915_SELFTEST 368c2ecf20Sopenharmony_ci select DRM_I915_DEBUG_RUNTIME_PM 378c2ecf20Sopenharmony_ci select DRM_I915_DEBUG_MMIO 388c2ecf20Sopenharmony_ci default n 398c2ecf20Sopenharmony_ci help 408c2ecf20Sopenharmony_ci Choose this option to turn on extra driver debugging that may affect 418c2ecf20Sopenharmony_ci performance but will catch some internal issues. 428c2ecf20Sopenharmony_ci 438c2ecf20Sopenharmony_ci Recommended for driver developers only. 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_ci If in doubt, say "N". 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ciconfig DRM_I915_DEBUG_MMIO 488c2ecf20Sopenharmony_ci bool "Always insert extra checks around mmio access by default" 498c2ecf20Sopenharmony_ci default n 508c2ecf20Sopenharmony_ci help 518c2ecf20Sopenharmony_ci By default, always enables the extra sanity checks (extra register 528c2ecf20Sopenharmony_ci reads) around every mmio (register) access that will slow the system 538c2ecf20Sopenharmony_ci down. This sets the default value of i915.mmio_debug to -1 and can 548c2ecf20Sopenharmony_ci be overridden at module load. 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_ci Recommended for driver developers only. 578c2ecf20Sopenharmony_ci 588c2ecf20Sopenharmony_ci If in doubt, say "N". 598c2ecf20Sopenharmony_ci 608c2ecf20Sopenharmony_ciconfig DRM_I915_DEBUG_GEM 618c2ecf20Sopenharmony_ci bool "Insert extra checks into the GEM internals" 628c2ecf20Sopenharmony_ci default n 638c2ecf20Sopenharmony_ci depends on DRM_I915_WERROR 648c2ecf20Sopenharmony_ci help 658c2ecf20Sopenharmony_ci Enable extra sanity checks (including BUGs) along the GEM driver 668c2ecf20Sopenharmony_ci paths that may slow the system down and if hit hang the machine. 678c2ecf20Sopenharmony_ci 688c2ecf20Sopenharmony_ci Recommended for driver developers only. 698c2ecf20Sopenharmony_ci 708c2ecf20Sopenharmony_ci If in doubt, say "N". 718c2ecf20Sopenharmony_ci 728c2ecf20Sopenharmony_ciconfig DRM_I915_ERRLOG_GEM 738c2ecf20Sopenharmony_ci bool "Insert extra logging (very verbose) for common GEM errors" 748c2ecf20Sopenharmony_ci default n 758c2ecf20Sopenharmony_ci depends on DRM_I915_DEBUG_GEM 768c2ecf20Sopenharmony_ci help 778c2ecf20Sopenharmony_ci Enable additional logging that may help track down the cause of 788c2ecf20Sopenharmony_ci principally userspace errors. 798c2ecf20Sopenharmony_ci 808c2ecf20Sopenharmony_ci Recommended for driver developers only. 818c2ecf20Sopenharmony_ci 828c2ecf20Sopenharmony_ci If in doubt, say "N". 838c2ecf20Sopenharmony_ci 848c2ecf20Sopenharmony_ciconfig DRM_I915_TRACE_GEM 858c2ecf20Sopenharmony_ci bool "Insert extra ftrace output from the GEM internals" 868c2ecf20Sopenharmony_ci depends on DRM_I915_DEBUG_GEM 878c2ecf20Sopenharmony_ci select TRACING 888c2ecf20Sopenharmony_ci default n 898c2ecf20Sopenharmony_ci help 908c2ecf20Sopenharmony_ci Enable additional and verbose debugging output that will spam 918c2ecf20Sopenharmony_ci ordinary tests, but may be vital for post-mortem debugging when 928c2ecf20Sopenharmony_ci used with /proc/sys/kernel/ftrace_dump_on_oops 938c2ecf20Sopenharmony_ci 948c2ecf20Sopenharmony_ci Recommended for driver developers only. 958c2ecf20Sopenharmony_ci 968c2ecf20Sopenharmony_ci If in doubt, say "N". 978c2ecf20Sopenharmony_ci 988c2ecf20Sopenharmony_ciconfig DRM_I915_TRACE_GTT 998c2ecf20Sopenharmony_ci bool "Insert extra ftrace output from the GTT internals" 1008c2ecf20Sopenharmony_ci depends on DRM_I915_DEBUG_GEM 1018c2ecf20Sopenharmony_ci select TRACING 1028c2ecf20Sopenharmony_ci default n 1038c2ecf20Sopenharmony_ci help 1048c2ecf20Sopenharmony_ci Enable additional and verbose debugging output that will spam 1058c2ecf20Sopenharmony_ci ordinary tests, but may be vital for post-mortem debugging when 1068c2ecf20Sopenharmony_ci used with /proc/sys/kernel/ftrace_dump_on_oops 1078c2ecf20Sopenharmony_ci 1088c2ecf20Sopenharmony_ci Recommended for driver developers only. 1098c2ecf20Sopenharmony_ci 1108c2ecf20Sopenharmony_ci If in doubt, say "N". 1118c2ecf20Sopenharmony_ci 1128c2ecf20Sopenharmony_ciconfig DRM_I915_SW_FENCE_DEBUG_OBJECTS 1138c2ecf20Sopenharmony_ci bool "Enable additional driver debugging for fence objects" 1148c2ecf20Sopenharmony_ci depends on DRM_I915 1158c2ecf20Sopenharmony_ci select DEBUG_OBJECTS 1168c2ecf20Sopenharmony_ci default n 1178c2ecf20Sopenharmony_ci help 1188c2ecf20Sopenharmony_ci Choose this option to turn on extra driver debugging that may affect 1198c2ecf20Sopenharmony_ci performance but will catch some internal issues. 1208c2ecf20Sopenharmony_ci 1218c2ecf20Sopenharmony_ci Recommended for driver developers only. 1228c2ecf20Sopenharmony_ci 1238c2ecf20Sopenharmony_ci If in doubt, say "N". 1248c2ecf20Sopenharmony_ci 1258c2ecf20Sopenharmony_ciconfig DRM_I915_SW_FENCE_CHECK_DAG 1268c2ecf20Sopenharmony_ci bool "Enable additional driver debugging for detecting dependency cycles" 1278c2ecf20Sopenharmony_ci depends on DRM_I915 1288c2ecf20Sopenharmony_ci default n 1298c2ecf20Sopenharmony_ci help 1308c2ecf20Sopenharmony_ci Choose this option to turn on extra driver debugging that may affect 1318c2ecf20Sopenharmony_ci performance but will catch some internal issues. 1328c2ecf20Sopenharmony_ci 1338c2ecf20Sopenharmony_ci Recommended for driver developers only. 1348c2ecf20Sopenharmony_ci 1358c2ecf20Sopenharmony_ci If in doubt, say "N". 1368c2ecf20Sopenharmony_ci 1378c2ecf20Sopenharmony_ciconfig DRM_I915_DEBUG_GUC 1388c2ecf20Sopenharmony_ci bool "Enable additional driver debugging for GuC" 1398c2ecf20Sopenharmony_ci depends on DRM_I915 1408c2ecf20Sopenharmony_ci default n 1418c2ecf20Sopenharmony_ci help 1428c2ecf20Sopenharmony_ci Choose this option to turn on extra driver debugging that may affect 1438c2ecf20Sopenharmony_ci performance but will help resolve GuC related issues. 1448c2ecf20Sopenharmony_ci 1458c2ecf20Sopenharmony_ci Recommended for driver developers only. 1468c2ecf20Sopenharmony_ci 1478c2ecf20Sopenharmony_ci If in doubt, say "N". 1488c2ecf20Sopenharmony_ci 1498c2ecf20Sopenharmony_ciconfig DRM_I915_SELFTEST 1508c2ecf20Sopenharmony_ci bool "Enable selftests upon driver load" 1518c2ecf20Sopenharmony_ci depends on DRM_I915 1528c2ecf20Sopenharmony_ci default n 1538c2ecf20Sopenharmony_ci select DRM_EXPORT_FOR_TESTS if m 1548c2ecf20Sopenharmony_ci select FAULT_INJECTION 1558c2ecf20Sopenharmony_ci select PRIME_NUMBERS 1568c2ecf20Sopenharmony_ci select CRC32 1578c2ecf20Sopenharmony_ci help 1588c2ecf20Sopenharmony_ci Choose this option to allow the driver to perform selftests upon 1598c2ecf20Sopenharmony_ci loading; also requires the i915.selftest=1 module parameter. To 1608c2ecf20Sopenharmony_ci exit the module after running the selftests (i.e. to prevent normal 1618c2ecf20Sopenharmony_ci module initialisation afterwards) use i915.selftest=-1. 1628c2ecf20Sopenharmony_ci 1638c2ecf20Sopenharmony_ci Recommended for driver developers only. 1648c2ecf20Sopenharmony_ci 1658c2ecf20Sopenharmony_ci If in doubt, say "N". 1668c2ecf20Sopenharmony_ci 1678c2ecf20Sopenharmony_ciconfig DRM_I915_SELFTEST_BROKEN 1688c2ecf20Sopenharmony_ci bool "Enable broken and dangerous selftests" 1698c2ecf20Sopenharmony_ci depends on DRM_I915_SELFTEST 1708c2ecf20Sopenharmony_ci depends on BROKEN 1718c2ecf20Sopenharmony_ci default n 1728c2ecf20Sopenharmony_ci help 1738c2ecf20Sopenharmony_ci This option enables the execution of selftests that are "dangerous" 1748c2ecf20Sopenharmony_ci and may trigger unintended HW side-effects as they break strict 1758c2ecf20Sopenharmony_ci rules given in the HW specification. For science. 1768c2ecf20Sopenharmony_ci 1778c2ecf20Sopenharmony_ci Recommended for masochistic driver developers only. 1788c2ecf20Sopenharmony_ci 1798c2ecf20Sopenharmony_ci If in doubt, say "N". 1808c2ecf20Sopenharmony_ci 1818c2ecf20Sopenharmony_ciconfig DRM_I915_LOW_LEVEL_TRACEPOINTS 1828c2ecf20Sopenharmony_ci bool "Enable low level request tracing events" 1838c2ecf20Sopenharmony_ci depends on DRM_I915 1848c2ecf20Sopenharmony_ci default n 1858c2ecf20Sopenharmony_ci help 1868c2ecf20Sopenharmony_ci Choose this option to turn on low level request tracing events. 1878c2ecf20Sopenharmony_ci This provides the ability to precisely monitor engine utilisation 1888c2ecf20Sopenharmony_ci and also analyze the request dependency resolving timeline. 1898c2ecf20Sopenharmony_ci 1908c2ecf20Sopenharmony_ci If in doubt, say "N". 1918c2ecf20Sopenharmony_ci 1928c2ecf20Sopenharmony_ciconfig DRM_I915_DEBUG_VBLANK_EVADE 1938c2ecf20Sopenharmony_ci bool "Enable extra debug warnings for vblank evasion" 1948c2ecf20Sopenharmony_ci depends on DRM_I915 1958c2ecf20Sopenharmony_ci default n 1968c2ecf20Sopenharmony_ci help 1978c2ecf20Sopenharmony_ci Choose this option to turn on extra debug warnings for the 1988c2ecf20Sopenharmony_ci vblank evade mechanism. This gives a warning every time the 1998c2ecf20Sopenharmony_ci the deadline allotted for the vblank evade critical section 2008c2ecf20Sopenharmony_ci is exceeded, even if there isn't an actual risk of missing 2018c2ecf20Sopenharmony_ci the vblank. 2028c2ecf20Sopenharmony_ci 2038c2ecf20Sopenharmony_ci If in doubt, say "N". 2048c2ecf20Sopenharmony_ci 2058c2ecf20Sopenharmony_ciconfig DRM_I915_DEBUG_RUNTIME_PM 2068c2ecf20Sopenharmony_ci bool "Enable extra state checking for runtime PM" 2078c2ecf20Sopenharmony_ci depends on DRM_I915 2088c2ecf20Sopenharmony_ci default n 2098c2ecf20Sopenharmony_ci select STACKDEPOT 2108c2ecf20Sopenharmony_ci help 2118c2ecf20Sopenharmony_ci Choose this option to turn on extra state checking for the 2128c2ecf20Sopenharmony_ci runtime PM functionality. This may introduce overhead during 2138c2ecf20Sopenharmony_ci driver loading, suspend and resume operations. 2148c2ecf20Sopenharmony_ci 2158c2ecf20Sopenharmony_ci If in doubt, say "N" 216