On 22/10/2019 13:13, Anna Karas wrote:
Add missing descriptions of i915_perf_stream structure members
to documentation.
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@xxxxxxxxx>
Cc: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
Cc: Robert Bragg <robert@xxxxxxxxxxxxx>
Signed-off-by: Anna Karas <anna.karas@xxxxxxxxx>
Looks good: Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
Thanks!
---
drivers/gpu/drm/i915/i915_perf_types.h | 31 +++++++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_perf_types.h b/drivers/gpu/drm/i915/i915_perf_types.h
index a1f733fc905a..74ddc20a0d37 100644
--- a/drivers/gpu/drm/i915/i915_perf_types.h
+++ b/drivers/gpu/drm/i915/i915_perf_types.h
@@ -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;
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