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drm/i915/perf: Describe structure members in documentation

Browse source 
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
This commit is contained in:
Anna Karas 2019-10-22 13:13:38 +03:00 committed by Chris Wilson
parent 2871ea85c1
commit 71b1c99081
1 changed files with 30 additions and 1 deletions
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31
drivers/gpu/drm/i915/i915_perf_types.h
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@ -199,14 +199,43 @@ struct i915_perf_stream {
* @pinned_ctx: The OA context specific information.
*/
struct intel_context *pinned_ctx;
/**
* @specific_ctx_id: The id of the specific context.
*/
u32 specific_ctx_id;
/**
* @specific_ctx_id_mask: The mask used to masking specific_ctx_id bits.
*/
u32 specific_ctx_id_mask;
/**
* @poll_check_timer: High resolution timer that will periodically
* check for data in the circular OA buffer for notifying userspace
* (e.g. during a read() or poll()).
*/
struct hrtimer poll_check_timer;
/**
* @poll_wq: The wait queue that hrtimer callback wakes when it
* sees data ready to read in the circular OA buffer.
*/
wait_queue_head_t poll_wq;
/**
* @pollin: Whether there is data available to read.
*/
bool pollin;
/**
* @periodic: Whether periodic sampling is currently enabled.
*/
bool periodic;
/**
* @period_exponent: The OA unit sampling frequency is derived from this.
*/
int period_exponent;
/**
@ -276,7 +305,7 @@ struct i915_perf_stream {
} oa_buffer;
/**
* A batch buffer doing a wait on the GPU for the NOA logic to be
* @noa_wait: A batch buffer doing a wait on the GPU for the NOA logic to be
* reprogrammed.
*/
struct i915_vma *noa_wait;