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354d036fcf
These new tracepoints are emitted once the request is ready to
be submitted to the GPU and once the request is about to
be submitted to the GPU, respectively.
Former condition triggers as soon as all the fences and
dependencies have been resolved, and the latter once the
backend is about to submit it to the GPU.
New tracepoint are enabled via the new
DRM_I915_LOW_LEVEL_TRACEPOINTS Kconfig option which is disabled
by default to alleviate the performance impact concerns.
v2: Move execute tracepoint to __i915_gem_request_submit.
(Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
90 lines
3.0 KiB
Plaintext
90 lines
3.0 KiB
Plaintext
config DRM_I915_WERROR
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bool "Force GCC to throw an error instead of a warning when compiling"
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# As this may inadvertently break the build, only allow the user
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# to shoot oneself in the foot iff they aim really hard
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depends on EXPERT
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# We use the dependency on !COMPILE_TEST to not be enabled in
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# allmodconfig or allyesconfig configurations
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depends on !COMPILE_TEST
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default n
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help
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Add -Werror to the build flags for (and only for) i915.ko.
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Do not enable this unless you are writing code for the i915.ko module.
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Recommended for driver developers only.
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If in doubt, say "N".
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config DRM_I915_DEBUG
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bool "Enable additional driver debugging"
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depends on DRM_I915
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select PREEMPT_COUNT
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select I2C_CHARDEV
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select DRM_DP_AUX_CHARDEV
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select X86_MSR # used by igt/pm_rpm
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select DRM_VGEM # used by igt/prime_vgem (dmabuf interop checks)
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select DRM_DEBUG_MM if DRM=y
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select DRM_DEBUG_MM_SELFTEST
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select DRM_I915_SW_FENCE_DEBUG_OBJECTS
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select DRM_I915_SELFTEST
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default n
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help
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Choose this option to turn on extra driver debugging that may affect
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performance but will catch some internal issues.
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Recommended for driver developers only.
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If in doubt, say "N".
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config DRM_I915_DEBUG_GEM
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bool "Insert extra checks into the GEM internals"
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default n
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depends on DRM_I915_WERROR
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help
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Enable extra sanity checks (including BUGs) along the GEM driver
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paths that may slow the system down and if hit hang the machine.
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Recommended for driver developers only.
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If in doubt, say "N".
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config DRM_I915_SW_FENCE_DEBUG_OBJECTS
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bool "Enable additional driver debugging for fence objects"
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depends on DRM_I915
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select DEBUG_OBJECTS
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default n
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help
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Choose this option to turn on extra driver debugging that may affect
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performance but will catch some internal issues.
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Recommended for driver developers only.
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If in doubt, say "N".
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config DRM_I915_SELFTEST
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bool "Enable selftests upon driver load"
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depends on DRM_I915
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default n
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select FAULT_INJECTION
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select PRIME_NUMBERS
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help
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Choose this option to allow the driver to perform selftests upon
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loading; also requires the i915.selftest=1 module parameter. To
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exit the module after running the selftests (i.e. to prevent normal
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module initialisation afterwards) use i915.selftest=-1.
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Recommended for driver developers only.
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If in doubt, say "N".
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config DRM_I915_LOW_LEVEL_TRACEPOINTS
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bool "Enable low level request tracing events"
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depends on DRM_I915
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default n
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help
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Choose this option to turn on low level request tracing events.
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This provides the ability to precisely monitor engine utilisation
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and also analyze the request dependency resolving timeline.
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If in doubt, say "N".
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