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 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
 32        default n
 33        help
 34          Choose this option to turn on extra driver debugging that may affect
 35          performance but will catch some internal issues.
 36
 37          Recommended for driver developers only.
 38
 39          If in doubt, say "N".
 40
 41config DRM_I915_DEBUG_GEM
 42        bool "Insert extra checks into the GEM internals"
 43        default n
 44        depends on DRM_I915_WERROR
 45        help
 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.
 48
 49          Recommended for driver developers only.
 50
 51          If in doubt, say "N".
 52
 53config DRM_I915_TRACE_GEM
 54	bool "Insert extra ftrace output from the GEM internals"
 55	depends on DRM_I915_DEBUG_GEM
 56	select TRACING
 57	default n
 58	help
 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
 62
 63	  Recommended for driver developers only.
 64
 65	  If in doubt, say "N".
 66
 67config DRM_I915_SW_FENCE_DEBUG_OBJECTS
 68        bool "Enable additional driver debugging for fence objects"
 69        depends on DRM_I915
 70        select DEBUG_OBJECTS
 71        default n
 72        help
 73          Choose this option to turn on extra driver debugging that may affect
 74          performance but will catch some internal issues.
 75
 76          Recommended for driver developers only.
 77
 78          If in doubt, say "N".
 79
 80config DRM_I915_SW_FENCE_CHECK_DAG
 81        bool "Enable additional driver debugging for detecting dependency cycles"
 82        depends on DRM_I915
 83        default n
 84        help
 85          Choose this option to turn on extra driver debugging that may affect
 86          performance but will catch some internal issues.
 87
 88          Recommended for driver developers only.
 89
 90          If in doubt, say "N".
 91
 92config DRM_I915_SELFTEST
 93	bool "Enable selftests upon driver load"
 94	depends on DRM_I915
 95	default n
 96	select FAULT_INJECTION
 97	select PRIME_NUMBERS
 98	help
 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.
103
104	  Recommended for driver developers only.
105
106	  If in doubt, say "N".
107
108config DRM_I915_SELFTEST_BROKEN
109	bool "Enable broken and dangerous selftests"
110	depends on DRM_I915_SELFTEST
111	depends on BROKEN
112	default n
113	help
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.
117
118	  Recommended for masochistic driver developers only.
119
120	  If in doubt, say "N".
121
122config DRM_I915_LOW_LEVEL_TRACEPOINTS
123        bool "Enable low level request tracing events"
124        depends on DRM_I915
125        default n
126        help
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.
130
131          If in doubt, say "N".
132
133config DRM_I915_DEBUG_VBLANK_EVADE
134	bool "Enable extra debug warnings for vblank evasion"
135	depends on DRM_I915
136	default n
137	help
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
142	  the vblank.
143
144	  If in doubt, say "N".