drm/i915/display: move plane prepare/cleanup to intel_atomic_plane.c

Start to refactor more stuff out of intel_display.c. These fit
better in this file.

This moves the rps boosting code as well as this is the only user of it.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211012043502.1377715-2-airlied@gmail.com

3 files changed, 208 insertions, 212 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index 47234d898549..53ee56453270 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -41,6 +41,7 @@
 #include "intel_display_types.h"
 #include "intel_pm.h"
 #include "intel_sprite.h"
+#include "gt/intel_rps.h"
 
 static void intel_plane_state_reset(struct intel_plane_state *plane_state,
 				    struct intel_plane *plane)
@@ -601,6 +602,213 @@ int intel_atomic_plane_check_clipping(struct intel_plane_state *plane_state,
 	return 0;
 }
 
+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;
+}
+
+static void add_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);
+}
+
+/**
+ * intel_prepare_plane_fb - Prepare fb for usage on plane
+ * @_plane: drm plane to prepare for
+ * @_new_plane_state: the plane state being prepared
+ *
+ * Prepares a framebuffer for usage on a display plane.  Generally this
+ * involves pinning the underlying object and updating the frontbuffer tracking
+ * bits.  Some older platforms need special physical address handling for
+ * cursor planes.
+ *
+ * Returns 0 on success, negative error code on failure.
+ */
+static int
+intel_prepare_plane_fb(struct drm_plane *_plane,
+		       struct drm_plane_state *_new_plane_state)
+{
+	struct i915_sched_attr attr = { .priority = I915_PRIORITY_DISPLAY };
+	struct intel_plane *plane = to_intel_plane(_plane);
+	struct intel_plane_state *new_plane_state =
+		to_intel_plane_state(_new_plane_state);
+	struct intel_atomic_state *state =
+		to_intel_atomic_state(new_plane_state->uapi.state);
+	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
+	const struct intel_plane_state *old_plane_state =
+		intel_atomic_get_old_plane_state(state, plane);
+	struct drm_i915_gem_object *obj = intel_fb_obj(new_plane_state->hw.fb);
+	struct drm_i915_gem_object *old_obj = intel_fb_obj(old_plane_state->hw.fb);
+	int ret;
+
+	if (old_obj) {
+		const struct intel_crtc_state *crtc_state =
+			intel_atomic_get_new_crtc_state(state,
+							to_intel_crtc(old_plane_state->hw.crtc));
+
+		/* Big Hammer, we also need to ensure that any pending
+		 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
+		 * current scanout is retired before unpinning the old
+		 * framebuffer. Note that we rely on userspace rendering
+		 * into the buffer attached to the pipe they are waiting
+		 * on. If not, userspace generates a GPU hang with IPEHR
+		 * point to the MI_WAIT_FOR_EVENT.
+		 *
+		 * This should only fail upon a hung GPU, in which case we
+		 * can safely continue.
+		 */
+		if (intel_crtc_needs_modeset(crtc_state)) {
+			ret = i915_sw_fence_await_reservation(&state->commit_ready,
+							      old_obj->base.resv, NULL,
+							      false, 0,
+							      GFP_KERNEL);
+			if (ret < 0)
+				return ret;
+		}
+	}
+
+	if (new_plane_state->uapi.fence) { /* explicit fencing */
+		i915_gem_fence_wait_priority(new_plane_state->uapi.fence,
+					     &attr);
+		ret = i915_sw_fence_await_dma_fence(&state->commit_ready,
+						    new_plane_state->uapi.fence,
+						    i915_fence_timeout(dev_priv),
+						    GFP_KERNEL);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (!obj)
+		return 0;
+
+
+	ret = intel_plane_pin_fb(new_plane_state);
+	if (ret)
+		return ret;
+
+	i915_gem_object_wait_priority(obj, 0, &attr);
+
+	if (!new_plane_state->uapi.fence) { /* implicit fencing */
+		struct dma_fence *fence;
+
+		ret = i915_sw_fence_await_reservation(&state->commit_ready,
+						      obj->base.resv, NULL,
+						      false,
+						      i915_fence_timeout(dev_priv),
+						      GFP_KERNEL);
+		if (ret < 0)
+			goto unpin_fb;
+
+		fence = dma_resv_get_excl_unlocked(obj->base.resv);
+		if (fence) {
+			add_rps_boost_after_vblank(new_plane_state->hw.crtc,
+						   fence);
+			dma_fence_put(fence);
+		}
+	} else {
+		add_rps_boost_after_vblank(new_plane_state->hw.crtc,
+					   new_plane_state->uapi.fence);
+	}
+
+	/*
+	 * We declare pageflips to be interactive and so merit a small bias
+	 * towards upclocking to deliver the frame on time. By only changing
+	 * the RPS thresholds to sample more regularly and aim for higher
+	 * clocks we can hopefully deliver low power workloads (like kodi)
+	 * that are not quite steady state without resorting to forcing
+	 * maximum clocks following a vblank miss (see do_rps_boost()).
+	 */
+	if (!state->rps_interactive) {
+		intel_rps_mark_interactive(&dev_priv->gt.rps, true);
+		state->rps_interactive = true;
+	}
+
+	return 0;
+
+unpin_fb:
+	intel_plane_unpin_fb(new_plane_state);
+
+	return ret;
+}
+
+/**
+ * intel_cleanup_plane_fb - Cleans up an fb after plane use
+ * @plane: drm plane to clean up for
+ * @_old_plane_state: the state from the previous modeset
+ *
+ * Cleans up a framebuffer that has just been removed from a plane.
+ */
+static void
+intel_cleanup_plane_fb(struct drm_plane *plane,
+		       struct drm_plane_state *_old_plane_state)
+{
+	struct intel_plane_state *old_plane_state =
+		to_intel_plane_state(_old_plane_state);
+	struct intel_atomic_state *state =
+		to_intel_atomic_state(old_plane_state->uapi.state);
+	struct drm_i915_private *dev_priv = to_i915(plane->dev);
+	struct drm_i915_gem_object *obj = intel_fb_obj(old_plane_state->hw.fb);
+
+	if (!obj)
+		return;
+
+	if (state->rps_interactive) {
+		intel_rps_mark_interactive(&dev_priv->gt.rps, false);
+		state->rps_interactive = false;
+	}
+
+	/* Should only be called after a successful intel_prepare_plane_fb()! */
+	intel_plane_unpin_fb(old_plane_state);
+}
+
 static const struct drm_plane_helper_funcs intel_plane_helper_funcs = {
 	.prepare_fb = intel_prepare_plane_fb,
 	.cleanup_fb = intel_cleanup_plane_fb,
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index b2e2e039744d..d1fa17929b1f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -68,7 +68,6 @@
 #include "gem/i915_gem_lmem.h"
 #include "gem/i915_gem_object.h"
 
-#include "gt/intel_rps.h"
 #include "gt/gen8_ppgtt.h"
 
 #include "g4x_dp.h"
@@ -10479,64 +10478,6 @@ static int intel_atomic_commit(struct drm_device *dev,
 	return 0;
 }
 
-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;
-}
-
-static void add_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);
-}
-
 int intel_plane_pin_fb(struct intel_plane_state *plane_state)
 {
 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
@@ -10604,155 +10545,6 @@ void intel_plane_unpin_fb(struct intel_plane_state *old_plane_state)
 }
 
 /**
- * intel_prepare_plane_fb - Prepare fb for usage on plane
- * @_plane: drm plane to prepare for
- * @_new_plane_state: the plane state being prepared
- *
- * Prepares a framebuffer for usage on a display plane.  Generally this
- * involves pinning the underlying object and updating the frontbuffer tracking
- * bits.  Some older platforms need special physical address handling for
- * cursor planes.
- *
- * Returns 0 on success, negative error code on failure.
- */
-int
-intel_prepare_plane_fb(struct drm_plane *_plane,
-		       struct drm_plane_state *_new_plane_state)
-{
-	struct i915_sched_attr attr = { .priority = I915_PRIORITY_DISPLAY };
-	struct intel_plane *plane = to_intel_plane(_plane);
-	struct intel_plane_state *new_plane_state =
-		to_intel_plane_state(_new_plane_state);
-	struct intel_atomic_state *state =
-		to_intel_atomic_state(new_plane_state->uapi.state);
-	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
-	const struct intel_plane_state *old_plane_state =
-		intel_atomic_get_old_plane_state(state, plane);
-	struct drm_i915_gem_object *obj = intel_fb_obj(new_plane_state->hw.fb);
-	struct drm_i915_gem_object *old_obj = intel_fb_obj(old_plane_state->hw.fb);
-	int ret;
-
-	if (old_obj) {
-		const struct intel_crtc_state *crtc_state =
-			intel_atomic_get_new_crtc_state(state,
-							to_intel_crtc(old_plane_state->hw.crtc));
-
-		/* Big Hammer, we also need to ensure that any pending
-		 * MI_WAIT_FOR_EVENT inside a user batch buffer on the
-		 * current scanout is retired before unpinning the old
-		 * framebuffer. Note that we rely on userspace rendering
-		 * into the buffer attached to the pipe they are waiting
-		 * on. If not, userspace generates a GPU hang with IPEHR
-		 * point to the MI_WAIT_FOR_EVENT.
-		 *
-		 * This should only fail upon a hung GPU, in which case we
-		 * can safely continue.
-		 */
-		if (intel_crtc_needs_modeset(crtc_state)) {
-			ret = i915_sw_fence_await_reservation(&state->commit_ready,
-							      old_obj->base.resv, NULL,
-							      false, 0,
-							      GFP_KERNEL);
-			if (ret < 0)
-				return ret;
-		}
-	}
-
-	if (new_plane_state->uapi.fence) { /* explicit fencing */
-		i915_gem_fence_wait_priority(new_plane_state->uapi.fence,
-					     &attr);
-		ret = i915_sw_fence_await_dma_fence(&state->commit_ready,
-						    new_plane_state->uapi.fence,
-						    i915_fence_timeout(dev_priv),
-						    GFP_KERNEL);
-		if (ret < 0)
-			return ret;
-	}
-
-	if (!obj)
-		return 0;
-
-
-	ret = intel_plane_pin_fb(new_plane_state);
-	if (ret)
-		return ret;
-
-	i915_gem_object_wait_priority(obj, 0, &attr);
-
-	if (!new_plane_state->uapi.fence) { /* implicit fencing */
-		struct dma_fence *fence;
-
-		ret = i915_sw_fence_await_reservation(&state->commit_ready,
-						      obj->base.resv, NULL,
-						      false,
-						      i915_fence_timeout(dev_priv),
-						      GFP_KERNEL);
-		if (ret < 0)
-			goto unpin_fb;
-
-		fence = dma_resv_get_excl_unlocked(obj->base.resv);
-		if (fence) {
-			add_rps_boost_after_vblank(new_plane_state->hw.crtc,
-						   fence);
-			dma_fence_put(fence);
-		}
-	} else {
-		add_rps_boost_after_vblank(new_plane_state->hw.crtc,
-					   new_plane_state->uapi.fence);
-	}
-
-	/*
-	 * We declare pageflips to be interactive and so merit a small bias
-	 * towards upclocking to deliver the frame on time. By only changing
-	 * the RPS thresholds to sample more regularly and aim for higher
-	 * clocks we can hopefully deliver low power workloads (like kodi)
-	 * that are not quite steady state without resorting to forcing
-	 * maximum clocks following a vblank miss (see do_rps_boost()).
-	 */
-	if (!state->rps_interactive) {
-		intel_rps_mark_interactive(&dev_priv->gt.rps, true);
-		state->rps_interactive = true;
-	}
-
-	return 0;
-
-unpin_fb:
-	intel_plane_unpin_fb(new_plane_state);
-
-	return ret;
-}
-
-/**
- * intel_cleanup_plane_fb - Cleans up an fb after plane use
- * @plane: drm plane to clean up for
- * @_old_plane_state: the state from the previous modeset
- *
- * Cleans up a framebuffer that has just been removed from a plane.
- */
-void
-intel_cleanup_plane_fb(struct drm_plane *plane,
-		       struct drm_plane_state *_old_plane_state)
-{
-	struct intel_plane_state *old_plane_state =
-		to_intel_plane_state(_old_plane_state);
-	struct intel_atomic_state *state =
-		to_intel_atomic_state(old_plane_state->uapi.state);
-	struct drm_i915_private *dev_priv = to_i915(plane->dev);
-	struct drm_i915_gem_object *obj = intel_fb_obj(old_plane_state->hw.fb);
-
-	if (!obj)
-		return;
-
-	if (state->rps_interactive) {
-		intel_rps_mark_interactive(&dev_priv->gt.rps, false);
-		state->rps_interactive = false;
-	}
-
-	/* Should only be called after a successful intel_prepare_plane_fb()! */
-	intel_plane_unpin_fb(old_plane_state);
-}
-
-/**
  * intel_plane_destroy - destroy a plane
  * @plane: plane to destroy
  *
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 3028072c2cf3..a08903bb7647 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -585,10 +585,6 @@ void intel_unpin_fb_vma(struct i915_vma *vma, unsigned long flags);
 struct drm_framebuffer *
 intel_framebuffer_create(struct drm_i915_gem_object *obj,
 			 struct drm_mode_fb_cmd2 *mode_cmd);
-int intel_prepare_plane_fb(struct drm_plane *plane,
-			   struct drm_plane_state *new_state);
-void intel_cleanup_plane_fb(struct drm_plane *plane,
-			    struct drm_plane_state *old_state);
 
 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
 				    enum pipe pipe);