forked from Minki/linux
953c7f82eb
Some pieces of code are independent of hardware but are very tricky to exercise through the normal userspace ABI or via debugfs hooks. Being able to create mock unit tests and execute them through CI is vital. Start by adding a central point where we can execute unit tests and a parameter to enable them. This is disabled by default as the expectation is that these tests will occasionally explode. To facilitate integration with igt, any parameter beginning with i915.igt__ is interpreted as a subtest executable independently via igt/drv_selftest. Two classes of selftests are recognised: mock unit tests and integration tests. Mock unit tests are run as soon as the module is loaded, before the device is probed. At that point there is no driver instantiated and all hw interactions must be "mocked". This is very useful for writing universal tests to exercise code not typically run on a broad range of architectures. Alternatively, you can hook into the live selftests and run when the device has been instantiated - hw interactions are real. v2: Add a macro for compiling conditional code for mock objects inside real objects. v3: Differentiate between mock unit tests and late integration test. v4: List the tests in natural order, use igt to sort after modparam. v5: s/late/live/ v6: s/unsigned long/unsigned int/ v7: Use igt_ prefixes for long helpers. v8: Deobfuscate macros overriding functions, stop using -I$(src) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-1-chris@chris-wilson.co.uk
78 lines
2.6 KiB
Plaintext
78 lines
2.6 KiB
Plaintext
config DRM_I915_WERROR
|
|
bool "Force GCC to throw an error instead of a warning when compiling"
|
|
# As this may inadvertently break the build, only allow the user
|
|
# to shoot oneself in the foot iff they aim really hard
|
|
depends on EXPERT
|
|
# We use the dependency on !COMPILE_TEST to not be enabled in
|
|
# allmodconfig or allyesconfig configurations
|
|
depends on !COMPILE_TEST
|
|
default n
|
|
help
|
|
Add -Werror to the build flags for (and only for) i915.ko.
|
|
Do not enable this unless you are writing code for the i915.ko module.
|
|
|
|
Recommended for driver developers only.
|
|
|
|
If in doubt, say "N".
|
|
|
|
config DRM_I915_DEBUG
|
|
bool "Enable additional driver debugging"
|
|
depends on DRM_I915
|
|
select PREEMPT_COUNT
|
|
select I2C_CHARDEV
|
|
select DRM_DP_AUX_CHARDEV
|
|
select X86_MSR # used by igt/pm_rpm
|
|
select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks)
|
|
select DRM_DEBUG_MM if DRM=y
|
|
select DRM_DEBUG_MM_SELFTEST
|
|
select DRM_I915_SW_FENCE_DEBUG_OBJECTS
|
|
select DRM_I915_SELFTEST
|
|
default n
|
|
help
|
|
Choose this option to turn on extra driver debugging that may affect
|
|
performance but will catch some internal issues.
|
|
|
|
Recommended for driver developers only.
|
|
|
|
If in doubt, say "N".
|
|
|
|
config DRM_I915_DEBUG_GEM
|
|
bool "Insert extra checks into the GEM internals"
|
|
default n
|
|
depends on DRM_I915_WERROR
|
|
help
|
|
Enable extra sanity checks (including BUGs) along the GEM driver
|
|
paths that may slow the system down and if hit hang the machine.
|
|
|
|
Recommended for driver developers only.
|
|
|
|
If in doubt, say "N".
|
|
|
|
config DRM_I915_SW_FENCE_DEBUG_OBJECTS
|
|
bool "Enable additional driver debugging for fence objects"
|
|
depends on DRM_I915
|
|
select DEBUG_OBJECTS
|
|
default n
|
|
help
|
|
Choose this option to turn on extra driver debugging that may affect
|
|
performance but will catch some internal issues.
|
|
|
|
Recommended for driver developers only.
|
|
|
|
If in doubt, say "N".
|
|
|
|
config DRM_I915_SELFTEST
|
|
bool "Enable selftests upon driver load"
|
|
depends on DRM_I915
|
|
default n
|
|
select PRIME_NUMBERS
|
|
help
|
|
Choose this option to allow the driver to perform selftests upon
|
|
loading; also requires the i915.selftest=1 module parameter. To
|
|
exit the module after running the selftests (i.e. to prevent normal
|
|
module initialisation afterwards) use i915.selftest=-1.
|
|
|
|
Recommended for driver developers only.
|
|
|
|
If in doubt, say "N".
|