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 DEBUG_FS 22 select PREEMPT_COUNT 23 select I2C_CHARDEV 24 select DRM_DP_AUX_CHARDEV 25 select X86_MSR # used by igt/pm_rpm 26 select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks) 27 select DRM_DEBUG_MM if DRM=y 28 select STACKDEPOT if DRM=y # for DRM_DEBUG_MM 29 select DRM_DEBUG_SELFTEST 30 select SW_SYNC # signaling validation framework (igt/syncobj*) 31 select DRM_I915_SW_FENCE_DEBUG_OBJECTS 32 select DRM_I915_SELFTEST 33 default n 34 help 35 Choose this option to turn on extra driver debugging that may affect 36 performance but will catch some internal issues. 37 38 Recommended for driver developers only. 39 40 If in doubt, say "N". 41 42config DRM_I915_DEBUG_GEM 43 bool "Insert extra checks into the GEM internals" 44 default n 45 depends on DRM_I915_WERROR 46 help 47 Enable extra sanity checks (including BUGs) along the GEM driver 48 paths that may slow the system down and if hit hang the machine. 49 50 Recommended for driver developers only. 51 52 If in doubt, say "N". 53 54config DRM_I915_TRACE_GEM 55 bool "Insert extra ftrace output from the GEM internals" 56 depends on DRM_I915_DEBUG_GEM 57 select TRACING 58 default n 59 help 60 Enable additional and verbose debugging output that will spam 61 ordinary tests, but may be vital for post-mortem debugging when 62 used with /proc/sys/kernel/ftrace_dump_on_oops 63 64 Recommended for driver developers only. 65 66 If in doubt, say "N". 67 68config DRM_I915_SW_FENCE_DEBUG_OBJECTS 69 bool "Enable additional driver debugging for fence objects" 70 depends on DRM_I915 71 select DEBUG_OBJECTS 72 default n 73 help 74 Choose this option to turn on extra driver debugging that may affect 75 performance but will catch some internal issues. 76 77 Recommended for driver developers only. 78 79 If in doubt, say "N". 80 81config DRM_I915_SW_FENCE_CHECK_DAG 82 bool "Enable additional driver debugging for detecting dependency cycles" 83 depends on DRM_I915 84 default n 85 help 86 Choose this option to turn on extra driver debugging that may affect 87 performance but will catch some internal issues. 88 89 Recommended for driver developers only. 90 91 If in doubt, say "N". 92 93config DRM_I915_DEBUG_GUC 94 bool "Enable additional driver debugging for GuC" 95 depends on DRM_I915 96 default n 97 help 98 Choose this option to turn on extra driver debugging that may affect 99 performance but will help resolve GuC related issues. 100 101 Recommended for driver developers only. 102 103 If in doubt, say "N". 104 105config DRM_I915_SELFTEST 106 bool "Enable selftests upon driver load" 107 depends on DRM_I915 108 default n 109 select FAULT_INJECTION 110 select PRIME_NUMBERS 111 help 112 Choose this option to allow the driver to perform selftests upon 113 loading; also requires the i915.selftest=1 module parameter. To 114 exit the module after running the selftests (i.e. to prevent normal 115 module initialisation afterwards) use i915.selftest=-1. 116 117 Recommended for driver developers only. 118 119 If in doubt, say "N". 120 121config DRM_I915_SELFTEST_BROKEN 122 bool "Enable broken and dangerous selftests" 123 depends on DRM_I915_SELFTEST 124 depends on BROKEN 125 default n 126 help 127 This option enables the execution of selftests that are "dangerous" 128 and may trigger unintended HW side-effects as they break strict 129 rules given in the HW specification. For science. 130 131 Recommended for masochistic driver developers only. 132 133 If in doubt, say "N". 134 135config DRM_I915_LOW_LEVEL_TRACEPOINTS 136 bool "Enable low level request tracing events" 137 depends on DRM_I915 138 default n 139 help 140 Choose this option to turn on low level request tracing events. 141 This provides the ability to precisely monitor engine utilisation 142 and also analyze the request dependency resolving timeline. 143 144 If in doubt, say "N". 145 146config DRM_I915_DEBUG_VBLANK_EVADE 147 bool "Enable extra debug warnings for vblank evasion" 148 depends on DRM_I915 149 default n 150 help 151 Choose this option to turn on extra debug warnings for the 152 vblank evade mechanism. This gives a warning every time the 153 the deadline allotted for the vblank evade critical section 154 is exceeded, even if there isn't an actual risk of missing 155 the vblank. 156 157 If in doubt, say "N". 158