5 files changed, 82 insertions, 16 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index 6f310c9d9765..07ff7ba7b2b7 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -936,6 +936,53 @@ 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;
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.h b/drivers/gpu/drm/i915/gt/intel_rps.h
index 407e878d5006..aee12f37d38a 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.h
+++ b/drivers/gpu/drm/i915/gt/intel_rps.h
@@ -24,6 +24,8 @@ void intel_rps_park(struct intel_rps *rps);
 void intel_rps_unpark(struct intel_rps *rps);
 void intel_rps_boost(struct i915_request *rq);
 void intel_rps_dec_waiters(struct intel_rps *rps);
+u32 intel_rps_get_boost_frequency(struct intel_rps *rps);
+int intel_rps_set_boost_frequency(struct intel_rps *rps, u32 freq);
 
 int intel_rps_set(struct intel_rps *rps, u8 val);
 void intel_rps_mark_interactive(struct intel_rps *rps, bool interactive);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
index db418396a145..4e1d3cd29164 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
@@ -650,6 +650,33 @@ int intel_guc_slpc_enable(struct intel_guc_slpc *slpc)
 	return 0;
 }
 
+int intel_guc_slpc_set_boost_freq(struct intel_guc_slpc *slpc, u32 val)
+{
+	int ret = 0;
+
+	if (val < slpc->min_freq || val > slpc->rp0_freq)
+		return -EINVAL;
+
+	mutex_lock(&slpc->lock);
+
+	if (slpc->boost_freq != val) {
+		/* Apply only if there are active waiters */
+		if (atomic_read(&slpc->num_waiters)) {
+			ret = slpc_force_min_freq(slpc, val);
+			if (ret) {
+				ret = -EIO;
+				goto done;
+			}
+		}
+
+		slpc->boost_freq = val;
+	}
+
+done:
+	mutex_unlock(&slpc->lock);
+	return ret;
+}
+
 void intel_guc_slpc_dec_waiters(struct intel_guc_slpc *slpc)
 {
 	/*
@@ -687,6 +714,8 @@ int intel_guc_slpc_print_info(struct intel_guc_slpc *slpc, struct drm_printer *p
 				   slpc_decode_max_freq(slpc));
 			drm_printf(p, "\tMin freq: %u MHz\n",
 				   slpc_decode_min_freq(slpc));
+			drm_printf(p, "\twaitboosts: %u\n",
+				   slpc->num_boosts);
 		}
 	}
 
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h
index d74d6d749bdc..0caa8fee3c04 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h
@@ -34,6 +34,7 @@ int intel_guc_slpc_enable(struct intel_guc_slpc *slpc);
 void intel_guc_slpc_fini(struct intel_guc_slpc *slpc);
 int intel_guc_slpc_set_max_freq(struct intel_guc_slpc *slpc, u32 val);
 int intel_guc_slpc_set_min_freq(struct intel_guc_slpc *slpc, u32 val);
+int intel_guc_slpc_set_boost_freq(struct intel_guc_slpc *slpc, u32 val);
 int intel_guc_slpc_get_max_freq(struct intel_guc_slpc *slpc, u32 *val);
 int intel_guc_slpc_get_min_freq(struct intel_guc_slpc *slpc, u32 *val);
 int intel_guc_slpc_print_info(struct intel_guc_slpc *slpc, struct drm_printer *p);
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index 1804f4142740..59d441cedc75 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -279,7 +279,7 @@ static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribu
 	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
 	struct intel_rps *rps = &i915->gt.rps;
 
-	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->boost_freq));
+	return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps));
 }
 
 static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
@@ -288,7 +288,6 @@ static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
 {
 	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
 	struct intel_rps *rps = &dev_priv->gt.rps;
-	bool boost = false;
 	ssize_t ret;
 	u32 val;
 
@@ -296,21 +295,9 @@ static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
 	if (ret)
 		return ret;
 
-	/* 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);
+	ret = intel_rps_set_boost_frequency(rps, val);
 
-	return count;
+	return ret ?: count;
 }
 
 static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,