1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_rps.c b/drivers/gpu/drm/i915/display/intel_display_rps.c
new file mode 100644
index 000000000000..918d0327169a
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_rps.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_vblank.h>
+
+#include "gt/intel_rps.h"
+#include "i915_drv.h"
+#include "intel_display_rps.h"
+#include "intel_display_types.h"
+
+struct wait_rps_boost {
+	struct wait_queue_entry wait;
+
+	struct drm_crtc *crtc;
+	struct i915_request *request;
+};
+
+static int do_rps_boost(struct wait_queue_entry *_wait,
+			unsigned mode, int sync, void *key)
+{
+	struct wait_rps_boost *wait = container_of(_wait, typeof(*wait), wait);
+	struct i915_request *rq = wait->request;
+
+	/*
+	 * If we missed the vblank, but the request is already running it
+	 * is reasonable to assume that it will complete before the next
+	 * vblank without our intervention, so leave RPS alone.
+	 */
+	if (!i915_request_started(rq))
+		intel_rps_boost(rq);
+	i915_request_put(rq);
+
+	drm_crtc_vblank_put(wait->crtc);
+
+	list_del(&wait->wait.entry);
+	kfree(wait);
+	return 1;
+}
+
+void intel_display_rps_boost_after_vblank(struct drm_crtc *crtc,
+					  struct dma_fence *fence)
+{
+	struct wait_rps_boost *wait;
+
+	if (!dma_fence_is_i915(fence))
+		return;
+
+	if (DISPLAY_VER(to_i915(crtc->dev)) < 6)
+		return;
+
+	if (drm_crtc_vblank_get(crtc))
+		return;
+
+	wait = kmalloc(sizeof(*wait), GFP_KERNEL);
+	if (!wait) {
+		drm_crtc_vblank_put(crtc);
+		return;
+	}
+
+	wait->request = to_request(dma_fence_get(fence));
+	wait->crtc = crtc;
+
+	wait->wait.func = do_rps_boost;
+	wait->wait.flags = 0;
+
+	add_wait_queue(drm_crtc_vblank_waitqueue(crtc), &wait->wait);
+}
+
+void intel_display_rps_mark_interactive(struct drm_i915_private *i915,
+					struct intel_atomic_state *state,
+					bool interactive)
+{
+	if (state->rps_interactive == interactive)
+		return;
+
+	intel_rps_mark_interactive(&to_gt(i915)->rps, interactive);
+	state->rps_interactive = interactive;
+}