Kconfig.debug revision 1.1
1 1.1 riastrad # SPDX-License-Identifier: GPL-2.0-only 2 1.1 riastrad config DRM_I915_WERROR 3 1.1 riastrad bool "Force GCC to throw an error instead of a warning when compiling" 4 1.1 riastrad # As this may inadvertently break the build, only allow the user 5 1.1 riastrad # to shoot oneself in the foot iff they aim really hard 6 1.1 riastrad depends on EXPERT 7 1.1 riastrad # We use the dependency on !COMPILE_TEST to not be enabled in 8 1.1 riastrad # allmodconfig or allyesconfig configurations 9 1.1 riastrad depends on !COMPILE_TEST 10 1.1 riastrad default n 11 1.1 riastrad help 12 1.1 riastrad Add -Werror to the build flags for (and only for) i915.ko. 13 1.1 riastrad Do not enable this unless you are writing code for the i915.ko module. 14 1.1 riastrad 15 1.1 riastrad Recommended for driver developers only. 16 1.1 riastrad 17 1.1 riastrad If in doubt, say "N". 18 1.1 riastrad 19 1.1 riastrad config DRM_I915_DEBUG 20 1.1 riastrad bool "Enable additional driver debugging" 21 1.1 riastrad depends on DRM_I915 22 1.1 riastrad select DEBUG_FS 23 1.1 riastrad select PREEMPT_COUNT 24 1.1 riastrad select I2C_CHARDEV 25 1.1 riastrad select STACKDEPOT 26 1.1 riastrad select DRM_DP_AUX_CHARDEV 27 1.1 riastrad select X86_MSR # used by igt/pm_rpm 28 1.1 riastrad select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks) 29 1.1 riastrad select DRM_DEBUG_MM if DRM=y 30 1.1 riastrad select DRM_EXPORT_FOR_TESTS if m 31 1.1 riastrad select DRM_DEBUG_SELFTEST 32 1.1 riastrad select DMABUF_SELFTESTS 33 1.1 riastrad select SW_SYNC # signaling validation framework (igt/syncobj*) 34 1.1 riastrad select DRM_I915_SW_FENCE_DEBUG_OBJECTS 35 1.1 riastrad select DRM_I915_SELFTEST 36 1.1 riastrad select DRM_I915_DEBUG_RUNTIME_PM 37 1.1 riastrad select DRM_I915_DEBUG_MMIO 38 1.1 riastrad default n 39 1.1 riastrad help 40 1.1 riastrad Choose this option to turn on extra driver debugging that may affect 41 1.1 riastrad performance but will catch some internal issues. 42 1.1 riastrad 43 1.1 riastrad Recommended for driver developers only. 44 1.1 riastrad 45 1.1 riastrad If in doubt, say "N". 46 1.1 riastrad 47 1.1 riastrad config DRM_I915_DEBUG_MMIO 48 1.1 riastrad bool "Always insert extra checks around mmio access by default" 49 1.1 riastrad default n 50 1.1 riastrad help 51 1.1 riastrad By default, always enables the extra sanity checks (extra register 52 1.1 riastrad reads) around every mmio (register) access that will slow the system 53 1.1 riastrad down. This sets the default value of i915.mmio_debug to -1 and can 54 1.1 riastrad be overridden at module load. 55 1.1 riastrad 56 1.1 riastrad Recommended for driver developers only. 57 1.1 riastrad 58 1.1 riastrad If in doubt, say "N". 59 1.1 riastrad 60 1.1 riastrad config DRM_I915_DEBUG_GEM 61 1.1 riastrad bool "Insert extra checks into the GEM internals" 62 1.1 riastrad default n 63 1.1 riastrad depends on DRM_I915_WERROR 64 1.1 riastrad help 65 1.1 riastrad Enable extra sanity checks (including BUGs) along the GEM driver 66 1.1 riastrad paths that may slow the system down and if hit hang the machine. 67 1.1 riastrad 68 1.1 riastrad Recommended for driver developers only. 69 1.1 riastrad 70 1.1 riastrad If in doubt, say "N". 71 1.1 riastrad 72 1.1 riastrad config DRM_I915_ERRLOG_GEM 73 1.1 riastrad bool "Insert extra logging (very verbose) for common GEM errors" 74 1.1 riastrad default n 75 1.1 riastrad depends on DRM_I915_DEBUG_GEM 76 1.1 riastrad help 77 1.1 riastrad Enable additional logging that may help track down the cause of 78 1.1 riastrad principally userspace errors. 79 1.1 riastrad 80 1.1 riastrad Recommended for driver developers only. 81 1.1 riastrad 82 1.1 riastrad If in doubt, say "N". 83 1.1 riastrad 84 1.1 riastrad config DRM_I915_TRACE_GEM 85 1.1 riastrad bool "Insert extra ftrace output from the GEM internals" 86 1.1 riastrad depends on DRM_I915_DEBUG_GEM 87 1.1 riastrad select TRACING 88 1.1 riastrad default n 89 1.1 riastrad help 90 1.1 riastrad Enable additional and verbose debugging output that will spam 91 1.1 riastrad ordinary tests, but may be vital for post-mortem debugging when 92 1.1 riastrad used with /proc/sys/kernel/ftrace_dump_on_oops 93 1.1 riastrad 94 1.1 riastrad Recommended for driver developers only. 95 1.1 riastrad 96 1.1 riastrad If in doubt, say "N". 97 1.1 riastrad 98 1.1 riastrad config DRM_I915_TRACE_GTT 99 1.1 riastrad bool "Insert extra ftrace output from the GTT internals" 100 1.1 riastrad depends on DRM_I915_DEBUG_GEM 101 1.1 riastrad select TRACING 102 1.1 riastrad default n 103 1.1 riastrad help 104 1.1 riastrad Enable additional and verbose debugging output that will spam 105 1.1 riastrad ordinary tests, but may be vital for post-mortem debugging when 106 1.1 riastrad used with /proc/sys/kernel/ftrace_dump_on_oops 107 1.1 riastrad 108 1.1 riastrad Recommended for driver developers only. 109 1.1 riastrad 110 1.1 riastrad If in doubt, say "N". 111 1.1 riastrad 112 1.1 riastrad config DRM_I915_SW_FENCE_DEBUG_OBJECTS 113 1.1 riastrad bool "Enable additional driver debugging for fence objects" 114 1.1 riastrad depends on DRM_I915 115 1.1 riastrad select DEBUG_OBJECTS 116 1.1 riastrad default n 117 1.1 riastrad help 118 1.1 riastrad Choose this option to turn on extra driver debugging that may affect 119 1.1 riastrad performance but will catch some internal issues. 120 1.1 riastrad 121 1.1 riastrad Recommended for driver developers only. 122 1.1 riastrad 123 1.1 riastrad If in doubt, say "N". 124 1.1 riastrad 125 1.1 riastrad config DRM_I915_SW_FENCE_CHECK_DAG 126 1.1 riastrad bool "Enable additional driver debugging for detecting dependency cycles" 127 1.1 riastrad depends on DRM_I915 128 1.1 riastrad default n 129 1.1 riastrad help 130 1.1 riastrad Choose this option to turn on extra driver debugging that may affect 131 1.1 riastrad performance but will catch some internal issues. 132 1.1 riastrad 133 1.1 riastrad Recommended for driver developers only. 134 1.1 riastrad 135 1.1 riastrad If in doubt, say "N". 136 1.1 riastrad 137 1.1 riastrad config DRM_I915_DEBUG_GUC 138 1.1 riastrad bool "Enable additional driver debugging for GuC" 139 1.1 riastrad depends on DRM_I915 140 1.1 riastrad default n 141 1.1 riastrad help 142 1.1 riastrad Choose this option to turn on extra driver debugging that may affect 143 1.1 riastrad performance but will help resolve GuC related issues. 144 1.1 riastrad 145 1.1 riastrad Recommended for driver developers only. 146 1.1 riastrad 147 1.1 riastrad If in doubt, say "N". 148 1.1 riastrad 149 1.1 riastrad config DRM_I915_SELFTEST 150 1.1 riastrad bool "Enable selftests upon driver load" 151 1.1 riastrad depends on DRM_I915 152 1.1 riastrad default n 153 1.1 riastrad select DRM_EXPORT_FOR_TESTS if m 154 1.1 riastrad select FAULT_INJECTION 155 1.1 riastrad select PRIME_NUMBERS 156 1.1 riastrad help 157 1.1 riastrad Choose this option to allow the driver to perform selftests upon 158 1.1 riastrad loading; also requires the i915.selftest=1 module parameter. To 159 1.1 riastrad exit the module after running the selftests (i.e. to prevent normal 160 1.1 riastrad module initialisation afterwards) use i915.selftest=-1. 161 1.1 riastrad 162 1.1 riastrad Recommended for driver developers only. 163 1.1 riastrad 164 1.1 riastrad If in doubt, say "N". 165 1.1 riastrad 166 1.1 riastrad config DRM_I915_SELFTEST_BROKEN 167 1.1 riastrad bool "Enable broken and dangerous selftests" 168 1.1 riastrad depends on DRM_I915_SELFTEST 169 1.1 riastrad depends on BROKEN 170 1.1 riastrad default n 171 1.1 riastrad help 172 1.1 riastrad This option enables the execution of selftests that are "dangerous" 173 1.1 riastrad and may trigger unintended HW side-effects as they break strict 174 1.1 riastrad rules given in the HW specification. For science. 175 1.1 riastrad 176 1.1 riastrad Recommended for masochistic driver developers only. 177 1.1 riastrad 178 1.1 riastrad If in doubt, say "N". 179 1.1 riastrad 180 1.1 riastrad config DRM_I915_LOW_LEVEL_TRACEPOINTS 181 1.1 riastrad bool "Enable low level request tracing events" 182 1.1 riastrad depends on DRM_I915 183 1.1 riastrad default n 184 1.1 riastrad help 185 1.1 riastrad Choose this option to turn on low level request tracing events. 186 1.1 riastrad This provides the ability to precisely monitor engine utilisation 187 1.1 riastrad and also analyze the request dependency resolving timeline. 188 1.1 riastrad 189 1.1 riastrad If in doubt, say "N". 190 1.1 riastrad 191 1.1 riastrad config DRM_I915_DEBUG_VBLANK_EVADE 192 1.1 riastrad bool "Enable extra debug warnings for vblank evasion" 193 1.1 riastrad depends on DRM_I915 194 1.1 riastrad default n 195 1.1 riastrad help 196 1.1 riastrad Choose this option to turn on extra debug warnings for the 197 1.1 riastrad vblank evade mechanism. This gives a warning every time the 198 1.1 riastrad the deadline allotted for the vblank evade critical section 199 1.1 riastrad is exceeded, even if there isn't an actual risk of missing 200 1.1 riastrad the vblank. 201 1.1 riastrad 202 1.1 riastrad If in doubt, say "N". 203 1.1 riastrad 204 1.1 riastrad config DRM_I915_DEBUG_RUNTIME_PM 205 1.1 riastrad bool "Enable extra state checking for runtime PM" 206 1.1 riastrad depends on DRM_I915 207 1.1 riastrad default n 208 1.1 riastrad select STACKDEPOT 209 1.1 riastrad help 210 1.1 riastrad Choose this option to turn on extra state checking for the 211 1.1 riastrad runtime PM functionality. This may introduce overhead during 212 1.1 riastrad driver loading, suspend and resume operations. 213 1.1 riastrad 214 1.1 riastrad If in doubt, say "N" 215
Indexes created Tue Sep 30 20:09:53 GMT 2025