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drm/i915/perf: Describe structure members in documentation
Add missing descriptions of i915_perf_stream structure members to documentation. Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Cc: Robert Bragg <robert@sixbynine.org> Signed-off-by: Anna Karas <anna.karas@intel.com> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20191022101338.17048-1-anna.karas@intel.com
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@ -199,14 +199,43 @@ struct i915_perf_stream {
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* @pinned_ctx: The OA context specific information.
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*/
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struct intel_context *pinned_ctx;
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/**
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* @specific_ctx_id: The id of the specific context.
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*/
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u32 specific_ctx_id;
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/**
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* @specific_ctx_id_mask: The mask used to masking specific_ctx_id bits.
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*/
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u32 specific_ctx_id_mask;
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/**
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* @poll_check_timer: High resolution timer that will periodically
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* check for data in the circular OA buffer for notifying userspace
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* (e.g. during a read() or poll()).
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*/
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struct hrtimer poll_check_timer;
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/**
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* @poll_wq: The wait queue that hrtimer callback wakes when it
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* sees data ready to read in the circular OA buffer.
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*/
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wait_queue_head_t poll_wq;
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/**
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* @pollin: Whether there is data available to read.
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*/
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bool pollin;
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/**
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* @periodic: Whether periodic sampling is currently enabled.
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*/
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bool periodic;
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/**
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* @period_exponent: The OA unit sampling frequency is derived from this.
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*/
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int period_exponent;
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/**
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@ -276,7 +305,7 @@ struct i915_perf_stream {
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} oa_buffer;
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/**
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* A batch buffer doing a wait on the GPU for the NOA logic to be
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* @noa_wait: A batch buffer doing a wait on the GPU for the NOA logic to be
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* reprogrammed.
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*/
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struct i915_vma *noa_wait;
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