Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 depends on EXPERT # only for developers
23 depends on !COMPILE_TEST # never built by robots
24 select DEBUG_FS
25 select PREEMPT_COUNT
26 select I2C_CHARDEV
27 select STACKDEPOT
28 select DRM_DP_AUX_CHARDEV
29 select X86_MSR # used by igt/pm_rpm
30 select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks)
31 select DRM_DEBUG_MM if DRM=y
32 select DRM_EXPORT_FOR_TESTS if m
33 select DRM_DEBUG_SELFTEST
34 select DMABUF_SELFTESTS
35 select SW_SYNC # signaling validation framework (igt/syncobj*)
36 select DRM_I915_WERROR
37 select DRM_I915_DEBUG_GEM
38 select DRM_I915_DEBUG_GEM_ONCE
39 select DRM_I915_DEBUG_MMIO
40 select DRM_I915_DEBUG_RUNTIME_PM
41 select DRM_I915_SW_FENCE_DEBUG_OBJECTS
42 select DRM_I915_SELFTEST
43 default n
44 help
45 Choose this option to turn on extra driver debugging that may affect
46 performance but will catch some internal issues.
47
48 Recommended for driver developers only.
49
50 If in doubt, say "N".
51
52config DRM_I915_DEBUG_MMIO
53 bool "Always insert extra checks around mmio access by default"
54 default n
55 help
56 By default, always enables the extra sanity checks (extra register
57 reads) around every mmio (register) access that will slow the system
58 down. This sets the default value of i915.mmio_debug to -1 and can
59 be overridden at module load.
60
61 Recommended for driver developers only.
62
63 If in doubt, say "N".
64
65config DRM_I915_DEBUG_GEM
66 bool "Insert extra checks into the GEM internals"
67 default n
68 depends on DRM_I915_WERROR
69 help
70 Enable extra sanity checks (including BUGs) along the GEM driver
71 paths that may slow the system down and if hit hang the machine.
72
73 Recommended for driver developers only.
74
75 If in doubt, say "N".
76
77config DRM_I915_DEBUG_GEM_ONCE
78 bool "Make a GEM debug failure fatal"
79 default n
80 depends on DRM_I915_DEBUG_GEM
81 help
82 During development, we often only want the very first failure
83 as that would otherwise be lost in the deluge of subsequent
84 failures. However, more casual testers may not want to trigger
85 a hard BUG_ON and hope that the system remains sufficiently usable
86 to capture a bug report in situ.
87
88 Recommended for driver developers only.
89
90 If in doubt, say "N".
91
92config DRM_I915_ERRLOG_GEM
93 bool "Insert extra logging (very verbose) for common GEM errors"
94 default n
95 depends on DRM_I915_DEBUG_GEM
96 help
97 Enable additional logging that may help track down the cause of
98 principally userspace errors.
99
100 Recommended for driver developers only.
101
102 If in doubt, say "N".
103
104config DRM_I915_TRACE_GEM
105 bool "Insert extra ftrace output from the GEM internals"
106 depends on DRM_I915_DEBUG_GEM
107 select TRACING
108 default n
109 help
110 Enable additional and verbose debugging output that will spam
111 ordinary tests, but may be vital for post-mortem debugging when
112 used with /proc/sys/kernel/ftrace_dump_on_oops
113
114 Recommended for driver developers only.
115
116 If in doubt, say "N".
117
118config DRM_I915_TRACE_GTT
119 bool "Insert extra ftrace output from the GTT internals"
120 depends on DRM_I915_DEBUG_GEM
121 select TRACING
122 default n
123 help
124 Enable additional and verbose debugging output that will spam
125 ordinary tests, but may be vital for post-mortem debugging when
126 used with /proc/sys/kernel/ftrace_dump_on_oops
127
128 Recommended for driver developers only.
129
130 If in doubt, say "N".
131
132config DRM_I915_SW_FENCE_DEBUG_OBJECTS
133 bool "Enable additional driver debugging for fence objects"
134 depends on DRM_I915
135 select DEBUG_OBJECTS
136 default n
137 help
138 Choose this option to turn on extra driver debugging that may affect
139 performance but will catch some internal issues.
140
141 Recommended for driver developers only.
142
143 If in doubt, say "N".
144
145config DRM_I915_SW_FENCE_CHECK_DAG
146 bool "Enable additional driver debugging for detecting dependency cycles"
147 depends on DRM_I915
148 default n
149 help
150 Choose this option to turn on extra driver debugging that may affect
151 performance but will catch some internal issues.
152
153 Recommended for driver developers only.
154
155 If in doubt, say "N".
156
157config DRM_I915_DEBUG_GUC
158 bool "Enable additional driver debugging for GuC"
159 depends on DRM_I915
160 select STACKDEPOT
161 default n
162 help
163 Choose this option to turn on extra driver debugging that may affect
164 performance but will help resolve GuC related issues.
165
166 Recommended for driver developers only.
167
168 If in doubt, say "N".
169
170config DRM_I915_SELFTEST
171 bool "Enable selftests upon driver load"
172 depends on DRM_I915
173 default n
174 select DRM_EXPORT_FOR_TESTS if m
175 select FAULT_INJECTION
176 select PRIME_NUMBERS
177 select CRC32
178 help
179 Choose this option to allow the driver to perform selftests upon
180 loading; also requires the i915.selftest=1 module parameter. To
181 exit the module after running the selftests (i.e. to prevent normal
182 module initialisation afterwards) use i915.selftest=-1.
183
184 Recommended for driver developers only.
185
186 If in doubt, say "N".
187
188config DRM_I915_SELFTEST_BROKEN
189 bool "Enable broken and dangerous selftests"
190 depends on DRM_I915_SELFTEST
191 depends on BROKEN
192 default n
193 help
194 This option enables the execution of selftests that are "dangerous"
195 and may trigger unintended HW side-effects as they break strict
196 rules given in the HW specification. For science.
197
198 Recommended for masochistic driver developers only.
199
200 If in doubt, say "N".
201
202config DRM_I915_LOW_LEVEL_TRACEPOINTS
203 bool "Enable low level request tracing events"
204 depends on DRM_I915
205 default n
206 help
207 Choose this option to turn on low level request tracing events.
208 This provides the ability to precisely monitor engine utilisation
209 and also analyze the request dependency resolving timeline.
210
211 Recommended for driver developers only.
212
213 If in doubt, say "N".
214
215config DRM_I915_DEBUG_VBLANK_EVADE
216 bool "Enable extra debug warnings for vblank evasion"
217 depends on DRM_I915
218 default n
219 help
220 Choose this option to turn on extra debug warnings for the
221 vblank evade mechanism. This gives a warning every time the
222 the deadline allotted for the vblank evade critical section
223 is exceeded, even if there isn't an actual risk of missing
224 the vblank.
225
226 Recommended for driver developers only.
227
228 If in doubt, say "N".
229
230config DRM_I915_DEBUG_RUNTIME_PM
231 bool "Enable extra state checking for runtime PM"
232 depends on DRM_I915
233 default n
234 select STACKDEPOT
235 help
236 Choose this option to turn on extra state checking for the
237 runtime PM functionality. This may introduce overhead during
238 driver loading, suspend and resume operations.
239
240 Recommended for driver developers only.
241
242 If in doubt, say "N"