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192.168.1.100 / T108 / e958203796650e3959a43708d67534bf36f4c83b / . / marvell / linux / drivers / gpu / drm / i915 / Kconfig.debug
blob: e4f03fcb125e46dacbf35613a63e570334f4445e [file] [log] [blame]
b.liue9582032025-04-17 19:18:16 +0800[diff] [blame^]1# SPDX-License-Identifier: GPL-2.0-only
2config DRM_I915_WERROR
3 bool "Force GCC to throw an error instead of a warning when compiling"
4 # As this may inadvertently break the build, only allow the user
5 # to shoot oneself in the foot iff they aim really hard
6 depends on EXPERT
7 # We use the dependency on !COMPILE_TEST to not be enabled in
8 # allmodconfig or allyesconfig configurations
9 depends on !COMPILE_TEST
10 default n
11 help
12 Add -Werror to the build flags for (and only for) i915.ko.
13 Do not enable this unless you are writing code for the i915.ko module.
14
15 Recommended for driver developers only.
16
17 If in doubt, say "N".
18
19config DRM_I915_DEBUG
20 bool "Enable additional driver debugging"
21 depends on DRM_I915
22 select DEBUG_FS
23 select PREEMPT_COUNT
24 select I2C_CHARDEV
25 select STACKDEPOT
26 select DRM_DP_AUX_CHARDEV
27 select X86_MSR # used by igt/pm_rpm
28 select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks)
29 select DRM_DEBUG_MM if DRM=y
30 select DRM_DEBUG_SELFTEST
31 select DMABUF_SELFTESTS
32 select SW_SYNC # signaling validation framework (igt/syncobj*)
33 select DRM_I915_SW_FENCE_DEBUG_OBJECTS
34 select DRM_I915_SELFTEST
35 select DRM_I915_DEBUG_RUNTIME_PM
36 select DRM_I915_DEBUG_MMIO
37 default n
38 help
39 Choose this option to turn on extra driver debugging that may affect
40 performance but will catch some internal issues.
41
42 Recommended for driver developers only.
43
44 If in doubt, say "N".
45
46config DRM_I915_DEBUG_MMIO
47 bool "Always insert extra checks around mmio access by default"
48 default n
49 help
50 By default, always enables the extra sanity checks (extra register
51 reads) around every mmio (register) access that will slow the system
52 down. This sets the default value of i915.mmio_debug to -1 and can
53 be overridden at module load.
54
55 Recommended for driver developers only.
56
57 If in doubt, say "N".
58
59config DRM_I915_DEBUG_GEM
60 bool "Insert extra checks into the GEM internals"
61 default n
62 depends on DRM_I915_WERROR
63 help
64 Enable extra sanity checks (including BUGs) along the GEM driver
65 paths that may slow the system down and if hit hang the machine.
66
67 Recommended for driver developers only.
68
69 If in doubt, say "N".
70
71config DRM_I915_ERRLOG_GEM
72 bool "Insert extra logging (very verbose) for common GEM errors"
73 default n
74 depends on DRM_I915_DEBUG_GEM
75 help
76 Enable additional logging that may help track down the cause of
77 principally userspace errors.
78
79 Recommended for driver developers only.
80
81 If in doubt, say "N".
82
83config DRM_I915_TRACE_GEM
84 bool "Insert extra ftrace output from the GEM internals"
85 depends on DRM_I915_DEBUG_GEM
86 select TRACING
87 default n
88 help
89 Enable additional and verbose debugging output that will spam
90 ordinary tests, but may be vital for post-mortem debugging when
91 used with /proc/sys/kernel/ftrace_dump_on_oops
92
93 Recommended for driver developers only.
94
95 If in doubt, say "N".
96
97config DRM_I915_TRACE_GTT
98 bool "Insert extra ftrace output from the GTT internals"
99 depends on DRM_I915_DEBUG_GEM
100 select TRACING
101 default n
102 help
103 Enable additional and verbose debugging output that will spam
104 ordinary tests, but may be vital for post-mortem debugging when
105 used with /proc/sys/kernel/ftrace_dump_on_oops
106
107 Recommended for driver developers only.
108
109 If in doubt, say "N".
110
111config DRM_I915_SW_FENCE_DEBUG_OBJECTS
112 bool "Enable additional driver debugging for fence objects"
113 depends on DRM_I915
114 select DEBUG_OBJECTS
115 default n
116 help
117 Choose this option to turn on extra driver debugging that may affect
118 performance but will catch some internal issues.
119
120 Recommended for driver developers only.
121
122 If in doubt, say "N".
123
124config DRM_I915_SW_FENCE_CHECK_DAG
125 bool "Enable additional driver debugging for detecting dependency cycles"
126 depends on DRM_I915
127 default n
128 help
129 Choose this option to turn on extra driver debugging that may affect
130 performance but will catch some internal issues.
131
132 Recommended for driver developers only.
133
134 If in doubt, say "N".
135
136config DRM_I915_DEBUG_GUC
137 bool "Enable additional driver debugging for GuC"
138 depends on DRM_I915
139 default n
140 help
141 Choose this option to turn on extra driver debugging that may affect
142 performance but will help resolve GuC related issues.
143
144 Recommended for driver developers only.
145
146 If in doubt, say "N".
147
148config DRM_I915_SELFTEST
149 bool "Enable selftests upon driver load"
150 depends on DRM_I915
151 default n
152 select FAULT_INJECTION
153 select PRIME_NUMBERS
154 help
155 Choose this option to allow the driver to perform selftests upon
156 loading; also requires the i915.selftest=1 module parameter. To
157 exit the module after running the selftests (i.e. to prevent normal
158 module initialisation afterwards) use i915.selftest=-1.
159
160 Recommended for driver developers only.
161
162 If in doubt, say "N".
163
164config DRM_I915_SELFTEST_BROKEN
165 bool "Enable broken and dangerous selftests"
166 depends on DRM_I915_SELFTEST
167 depends on BROKEN
168 default n
169 help
170 This option enables the execution of selftests that are "dangerous"
171 and may trigger unintended HW side-effects as they break strict
172 rules given in the HW specification. For science.
173
174 Recommended for masochistic driver developers only.
175
176 If in doubt, say "N".
177
178config DRM_I915_LOW_LEVEL_TRACEPOINTS
179 bool "Enable low level request tracing events"
180 depends on DRM_I915
181 default n
182 help
183 Choose this option to turn on low level request tracing events.
184 This provides the ability to precisely monitor engine utilisation
185 and also analyze the request dependency resolving timeline.
186
187 If in doubt, say "N".
188
189config DRM_I915_DEBUG_VBLANK_EVADE
190 bool "Enable extra debug warnings for vblank evasion"
191 depends on DRM_I915
192 default n
193 help
194 Choose this option to turn on extra debug warnings for the
195 vblank evade mechanism. This gives a warning every time the
196 the deadline allotted for the vblank evade critical section
197 is exceeded, even if there isn't an actual risk of missing
198 the vblank.
199
200 If in doubt, say "N".
201
202config DRM_I915_DEBUG_RUNTIME_PM
203 bool "Enable extra state checking for runtime PM"
204 depends on DRM_I915
205 default n
206 select STACKDEPOT
207 help
208 Choose this option to turn on extra state checking for the
209 runtime PM functionality. This may introduce overhead during
210 driver loading, suspend and resume operations.
211
212 If in doubt, say "N"