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
6 # We use the dependency on !COMPILE_TEST to not be enabled in
7 # allmodconfig or allyesconfig configurations
8 depends on !COMPILE_TEST
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.
14 Recommended for driver developers only.
19 bool "Enable additional driver debugging"
25 select DRM_DP_AUX_CHARDEV
26 select X86_MSR # used by igt/pm_rpm
27 select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks)
28 select DRM_DEBUG_MM if DRM=y
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 select DRM_I915_DEBUG_RUNTIME_PM
36 Choose this option to turn on extra driver debugging that may affect
37 performance but will catch some internal issues.
39 Recommended for driver developers only.
43 config DRM_I915_DEBUG_GEM
44 bool "Insert extra checks into the GEM internals"
46 depends on DRM_I915_WERROR
48 Enable extra sanity checks (including BUGs) along the GEM driver
49 paths that may slow the system down and if hit hang the machine.
51 Recommended for driver developers only.
55 config DRM_I915_ERRLOG_GEM
56 bool "Insert extra logging (very verbose) for common GEM errors"
58 depends on DRM_I915_DEBUG_GEM
60 Enable additional logging that may help track down the cause of
61 principally userspace errors.
63 Recommended for driver developers only.
67 config DRM_I915_TRACE_GEM
68 bool "Insert extra ftrace output from the GEM internals"
69 depends on DRM_I915_DEBUG_GEM
73 Enable additional and verbose debugging output that will spam
74 ordinary tests, but may be vital for post-mortem debugging when
75 used with /proc/sys/kernel/ftrace_dump_on_oops
77 Recommended for driver developers only.
81 config DRM_I915_SW_FENCE_DEBUG_OBJECTS
82 bool "Enable additional driver debugging for fence objects"
87 Choose this option to turn on extra driver debugging that may affect
88 performance but will catch some internal issues.
90 Recommended for driver developers only.
94 config DRM_I915_SW_FENCE_CHECK_DAG
95 bool "Enable additional driver debugging for detecting dependency cycles"
99 Choose this option to turn on extra driver debugging that may affect
100 performance but will catch some internal issues.
102 Recommended for driver developers only.
104 If in doubt, say "N".
106 config DRM_I915_DEBUG_GUC
107 bool "Enable additional driver debugging for GuC"
111 Choose this option to turn on extra driver debugging that may affect
112 performance but will help resolve GuC related issues.
114 Recommended for driver developers only.
116 If in doubt, say "N".
118 config DRM_I915_SELFTEST
119 bool "Enable selftests upon driver load"
122 select FAULT_INJECTION
125 Choose this option to allow the driver to perform selftests upon
126 loading; also requires the i915.selftest=1 module parameter. To
127 exit the module after running the selftests (i.e. to prevent normal
128 module initialisation afterwards) use i915.selftest=-1.
130 Recommended for driver developers only.
132 If in doubt, say "N".
134 config DRM_I915_SELFTEST_BROKEN
135 bool "Enable broken and dangerous selftests"
136 depends on DRM_I915_SELFTEST
140 This option enables the execution of selftests that are "dangerous"
141 and may trigger unintended HW side-effects as they break strict
142 rules given in the HW specification. For science.
144 Recommended for masochistic driver developers only.
146 If in doubt, say "N".
148 config DRM_I915_LOW_LEVEL_TRACEPOINTS
149 bool "Enable low level request tracing events"
153 Choose this option to turn on low level request tracing events.
154 This provides the ability to precisely monitor engine utilisation
155 and also analyze the request dependency resolving timeline.
157 If in doubt, say "N".
159 config DRM_I915_DEBUG_VBLANK_EVADE
160 bool "Enable extra debug warnings for vblank evasion"
164 Choose this option to turn on extra debug warnings for the
165 vblank evade mechanism. This gives a warning every time the
166 the deadline allotted for the vblank evade critical section
167 is exceeded, even if there isn't an actual risk of missing
170 If in doubt, say "N".
172 config DRM_I915_DEBUG_RUNTIME_PM
173 bool "Enable extra state checking for runtime PM"
178 Choose this option to turn on extra state checking for the
179 runtime PM functionality. This may introduce overhead during
180 driver loading, suspend and resume operations.