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_ERRLOG_GEM 55 bool "Insert extra logging (very verbose) for common GEM errors" 56 default n 57 depends on DRM_I915_DEBUG_GEM 58 help 59 Enable additional logging that may help track down the cause of 60 principally userspace errors. 61 62 Recommended for driver developers only. 63 64 If in doubt, say "N". 65 66config DRM_I915_TRACE_GEM 67 bool "Insert extra ftrace output from the GEM internals" 68 depends on DRM_I915_DEBUG_GEM 69 select TRACING 70 default n 71 help 72 Enable additional and verbose debugging output that will spam 73 ordinary tests, but may be vital for post-mortem debugging when 74 used with /proc/sys/kernel/ftrace_dump_on_oops 75 76 Recommended for driver developers only. 77 78 If in doubt, say "N". 79 80config DRM_I915_SW_FENCE_DEBUG_OBJECTS 81 bool "Enable additional driver debugging for fence objects" 82 depends on DRM_I915 83 select DEBUG_OBJECTS 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_SW_FENCE_CHECK_DAG 94 bool "Enable additional driver debugging for detecting dependency cycles" 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 catch some internal issues. 100 101 Recommended for driver developers only. 102 103 If in doubt, say "N". 104 105config DRM_I915_DEBUG_GUC 106 bool "Enable additional driver debugging for GuC" 107 depends on DRM_I915 108 default n 109 help 110 Choose this option to turn on extra driver debugging that may affect 111 performance but will help resolve GuC related issues. 112 113 Recommended for driver developers only. 114 115 If in doubt, say "N". 116 117config DRM_I915_SELFTEST 118 bool "Enable selftests upon driver load" 119 depends on DRM_I915 120 default n 121 select FAULT_INJECTION 122 select PRIME_NUMBERS 123 help 124 Choose this option to allow the driver to perform selftests upon 125 loading; also requires the i915.selftest=1 module parameter. To 126 exit the module after running the selftests (i.e. to prevent normal 127 module initialisation afterwards) use i915.selftest=-1. 128 129 Recommended for driver developers only. 130 131 If in doubt, say "N". 132 133config DRM_I915_SELFTEST_BROKEN 134 bool "Enable broken and dangerous selftests" 135 depends on DRM_I915_SELFTEST 136 depends on BROKEN 137 default n 138 help 139 This option enables the execution of selftests that are "dangerous" 140 and may trigger unintended HW side-effects as they break strict 141 rules given in the HW specification. For science. 142 143 Recommended for masochistic driver developers only. 144 145 If in doubt, say "N". 146 147config DRM_I915_LOW_LEVEL_TRACEPOINTS 148 bool "Enable low level request tracing events" 149 depends on DRM_I915 150 default n 151 help 152 Choose this option to turn on low level request tracing events. 153 This provides the ability to precisely monitor engine utilisation 154 and also analyze the request dependency resolving timeline. 155 156 If in doubt, say "N". 157 158config DRM_I915_DEBUG_VBLANK_EVADE 159 bool "Enable extra debug warnings for vblank evasion" 160 depends on DRM_I915 161 default n 162 help 163 Choose this option to turn on extra debug warnings for the 164 vblank evade mechanism. This gives a warning every time the 165 the deadline allotted for the vblank evade critical section 166 is exceeded, even if there isn't an actual risk of missing 167 the vblank. 168 169 If in doubt, say "N". 170