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path: root/drivers/gpu/drm/i915/gt/intel_rps.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_rps.c')
-rw-r--r--drivers/gpu/drm/i915/gt/intel_rps.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index 5e275f8dda8c..07ff7ba7b2b7 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -936,8 +936,70 @@ void intel_rps_park(struct intel_rps *rps)
GT_TRACE(rps_to_gt(rps), "park:%x\n", rps->cur_freq);
}
+u32 intel_rps_get_boost_frequency(struct intel_rps *rps)
+{
+ struct intel_guc_slpc *slpc;
+
+ if (rps_uses_slpc(rps)) {
+ slpc = rps_to_slpc(rps);
+
+ return slpc->boost_freq;
+ } else {
+ return intel_gpu_freq(rps, rps->boost_freq);
+ }
+}
+
+static int rps_set_boost_freq(struct intel_rps *rps, u32 val)
+{
+ bool boost = false;
+
+ /* Validate against (static) hardware limits */
+ val = intel_freq_opcode(rps, val);
+ if (val < rps->min_freq || val > rps->max_freq)
+ return -EINVAL;
+
+ mutex_lock(&rps->lock);
+ if (val != rps->boost_freq) {
+ rps->boost_freq = val;
+ boost = atomic_read(&rps->num_waiters);
+ }
+ mutex_unlock(&rps->lock);
+ if (boost)
+ schedule_work(&rps->work);
+
+ return 0;
+}
+
+int intel_rps_set_boost_frequency(struct intel_rps *rps, u32 freq)
+{
+ struct intel_guc_slpc *slpc;
+
+ if (rps_uses_slpc(rps)) {
+ slpc = rps_to_slpc(rps);
+
+ return intel_guc_slpc_set_boost_freq(slpc, freq);
+ } else {
+ return rps_set_boost_freq(rps, freq);
+ }
+}
+
+void intel_rps_dec_waiters(struct intel_rps *rps)
+{
+ struct intel_guc_slpc *slpc;
+
+ if (rps_uses_slpc(rps)) {
+ slpc = rps_to_slpc(rps);
+
+ intel_guc_slpc_dec_waiters(slpc);
+ } else {
+ atomic_dec(&rps->num_waiters);
+ }
+}
+
void intel_rps_boost(struct i915_request *rq)
{
+ struct intel_guc_slpc *slpc;
+
if (i915_request_signaled(rq) || i915_request_has_waitboost(rq))
return;
@@ -945,6 +1007,16 @@ void intel_rps_boost(struct i915_request *rq)
if (!test_and_set_bit(I915_FENCE_FLAG_BOOST, &rq->fence.flags)) {
struct intel_rps *rps = &READ_ONCE(rq->engine)->gt->rps;
+ if (rps_uses_slpc(rps)) {
+ slpc = rps_to_slpc(rps);
+
+ /* Return if old value is non zero */
+ if (!atomic_fetch_inc(&slpc->num_waiters))
+ schedule_work(&slpc->boost_work);
+
+ return;
+ }
+
if (atomic_fetch_inc(&rps->num_waiters))
return;