1config DRM_I915_WERROR 2 bool "Force GCC to throw an error instead of a warning when compiling" 3 # As this may inadvertently break the build, only allow the user 4 # to shoot oneself in the foot iff they aim really hard 5 depends on EXPERT 6 # We use the dependency on !COMPILE_TEST to not be enabled in 7 # allmodconfig or allyesconfig configurations 8 depends on !COMPILE_TEST 9 default n 10 help 11 Add -Werror to the build flags for (and only for) i915.ko. 12 Do not enable this unless you are writing code for the i915.ko module. 13 14 Recommended for driver developers only. 15 16 If in doubt, say "N". 17 18config DRM_I915_DEBUG 19 bool "Enable additional driver debugging" 20 depends on DRM_I915 21 select PREEMPT_COUNT 22 select I2C_CHARDEV 23 select DRM_DP_AUX_CHARDEV 24 select X86_MSR # used by igt/pm_rpm 25 select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks) 26 select DRM_DEBUG_MM if DRM=y 27 select DRM_DEBUG_MM_SELFTEST 28 select SW_SYNC # signaling validation framework (igt/syncobj*) 29 select DRM_I915_SW_FENCE_DEBUG_OBJECTS 30 select DRM_I915_SELFTEST 31 default n 32 help 33 Choose this option to turn on extra driver debugging that may affect 34 performance but will catch some internal issues. 35 36 Recommended for driver developers only. 37 38 If in doubt, say "N". 39 40config DRM_I915_DEBUG_GEM 41 bool "Insert extra checks into the GEM internals" 42 default n 43 depends on DRM_I915_WERROR 44 help 45 Enable extra sanity checks (including BUGs) along the GEM driver 46 paths that may slow the system down and if hit hang the machine. 47 48 Recommended for driver developers only. 49 50 If in doubt, say "N". 51 52config DRM_I915_SW_FENCE_DEBUG_OBJECTS 53 bool "Enable additional driver debugging for fence objects" 54 depends on DRM_I915 55 select DEBUG_OBJECTS 56 default n 57 help 58 Choose this option to turn on extra driver debugging that may affect 59 performance but will catch some internal issues. 60 61 Recommended for driver developers only. 62 63 If in doubt, say "N". 64 65config DRM_I915_SW_FENCE_CHECK_DAG 66 bool "Enable additional driver debugging for detecting dependency cycles" 67 depends on DRM_I915 68 default n 69 help 70 Choose this option to turn on extra driver debugging that may affect 71 performance but will catch some internal issues. 72 73 Recommended for driver developers only. 74 75 If in doubt, say "N". 76 77config DRM_I915_SELFTEST 78 bool "Enable selftests upon driver load" 79 depends on DRM_I915 80 default n 81 select FAULT_INJECTION 82 select PRIME_NUMBERS 83 help 84 Choose this option to allow the driver to perform selftests upon 85 loading; also requires the i915.selftest=1 module parameter. To 86 exit the module after running the selftests (i.e. to prevent normal 87 module initialisation afterwards) use i915.selftest=-1. 88 89 Recommended for driver developers only. 90 91 If in doubt, say "N". 92 93config DRM_I915_LOW_LEVEL_TRACEPOINTS 94 bool "Enable low level request tracing events" 95 depends on DRM_I915 96 default n 97 help 98 Choose this option to turn on low level request tracing events. 99 This provides the ability to precisely monitor engine utilisation 100 and also analyze the request dependency resolving timeline. 101 102 If in doubt, say "N". 103 104config DRM_I915_DEBUG_VBLANK_EVADE 105 bool "Enable extra debug warnings for vblank evasion" 106 depends on DRM_I915 107 default n 108 help 109 Choose this option to turn on extra debug warnings for the 110 vblank evade mechanism. This gives a warning every time the 111 the deadline allotted for the vblank evade critical section 112 is exceeded, even if there isn't an actual risk of missing 113 the vblank. 114 115 If in doubt, say "N". 116