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| author | Anna Karas <anna.karas@intel.com> | 2019-10-22 13:13:38 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-24 17:01:35 +0300 |
| commit | 71b1c99081aec38b947d678b78a1ebe75c7260db (patch) | |
| tree | 9e80809672d1759f4c30ed4771d9758ce78c293f /drivers/gpu | |
| parent | 2871ea85c119e6fb1127b30f0061436b285d3a2c (diff) | |
| download | linux-71b1c99081aec38b947d678b78a1ebe75c7260db.tar.xz | |
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
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_perf_types.h | 31 |
1 files changed, 30 insertions, 1 deletions
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; |