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"
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 DRM_DEBUG_MM_SELFTEST
29 select SW_SYNC # signaling validation framework (igt/syncobj*)
30 select DRM_I915_SW_FENCE_DEBUG_OBJECTS
31 select DRM_I915_SELFTEST
34 Choose this option to turn on extra driver debugging that may affect
35 performance but will catch some internal issues.
37 Recommended for driver developers only.
41 config DRM_I915_DEBUG_GEM
42 bool "Insert extra checks into the GEM internals"
44 depends on DRM_I915_WERROR
46 Enable extra sanity checks (including BUGs) along the GEM driver
47 paths that may slow the system down and if hit hang the machine.
49 Recommended for driver developers only.
53 config DRM_I915_TRACE_GEM
54 bool "Insert extra ftrace output from the GEM internals"
55 depends on DRM_I915_DEBUG_GEM
59 Enable additional and verbose debugging output that will spam
60 ordinary tests, but may be vital for post-mortem debugging when
61 used with /proc/sys/kernel/ftrace_dump_on_oops
63 Recommended for driver developers only.
67 config DRM_I915_SW_FENCE_DEBUG_OBJECTS
68 bool "Enable additional driver debugging for fence objects"
73 Choose this option to turn on extra driver debugging that may affect
74 performance but will catch some internal issues.
76 Recommended for driver developers only.
80 config DRM_I915_SW_FENCE_CHECK_DAG
81 bool "Enable additional driver debugging for detecting dependency cycles"
85 Choose this option to turn on extra driver debugging that may affect
86 performance but will catch some internal issues.
88 Recommended for driver developers only.
92 config DRM_I915_SELFTEST
93 bool "Enable selftests upon driver load"
96 select FAULT_INJECTION
99 Choose this option to allow the driver to perform selftests upon
100 loading; also requires the i915.selftest=1 module parameter. To
101 exit the module after running the selftests (i.e. to prevent normal
102 module initialisation afterwards) use i915.selftest=-1.
104 Recommended for driver developers only.
106 If in doubt, say "N".
108 config DRM_I915_SELFTEST_BROKEN
109 bool "Enable broken and dangerous selftests"
110 depends on DRM_I915_SELFTEST
114 This option enables the execution of selftests that are "dangerous"
115 and may trigger unintended HW side-effects as they break strict
116 rules given in the HW specification. For science.
118 Recommended for masochistic driver developers only.
120 If in doubt, say "N".
122 config DRM_I915_LOW_LEVEL_TRACEPOINTS
123 bool "Enable low level request tracing events"
127 Choose this option to turn on low level request tracing events.
128 This provides the ability to precisely monitor engine utilisation
129 and also analyze the request dependency resolving timeline.
131 If in doubt, say "N".
133 config DRM_I915_DEBUG_VBLANK_EVADE
134 bool "Enable extra debug warnings for vblank evasion"
138 Choose this option to turn on extra debug warnings for the
139 vblank evade mechanism. This gives a warning every time the
140 the deadline allotted for the vblank evade critical section
141 is exceeded, even if there isn't an actual risk of missing
144 If in doubt, say "N".