We'll use this information later to verify that a client trying to
reconfigure the stream does so on the right engine.
Signed-off-by: Lionel Landwerlin <lionel.g.landwer...@intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 5 +++++
drivers/gpu/drm/i915/i915_perf.c | 7 +++++++
2 files changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 75607450ba00..274a1193d4f0 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1088,6 +1088,11 @@ struct i915_perf_stream {
*/
intel_wakeref_t wakeref;
+ /**
+ * @engine: Engine associated with this performance stream.
+ */
+ struct intel_engine_cs *engine;
+
/**
* @sample_flags: Flags representing the `DRM_I915_PERF_PROP_SAMPLE_*`
* properties given when opening a stream, representing the contents
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index d18cd332afb7..9d5a3522aa35 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -363,6 +363,8 @@ struct perf_open_properties {
int oa_format;
bool oa_periodic;
int oa_period_exponent;
+
+ struct intel_engine_cs *engine;
};
static enum hrtimer_restart oa_poll_check_timer_cb(struct hrtimer *hrtimer);
@@ -2201,6 +2203,8 @@ static int i915_oa_stream_init(struct i915_perf_stream
*stream,
format_size = dev_priv->perf.oa_formats[props->oa_format].size;
+ stream->engine = props->engine;
+
stream->sample_flags |= SAMPLE_OA_REPORT;
stream->sample_size += format_size;
@@ -2843,6 +2847,9 @@ static int read_properties_unlocked(struct
drm_i915_private *dev_priv,
return -EINVAL;
}
+ /* At the moment we only support using i915-perf on the RCS. */
+ props->engine = dev_priv->engine[RCS0];
+
/* Considering that ID = 0 is reserved and assuming that we don't
* (currently) expect any configurations to ever specify duplicate
* values for a particular property ID then the last _PROP_MAX value is
--
2.23.0
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