@@ -253,11 +253,80 @@ static void intel_plane_atomic_update(struct drm_plane *plane,
}
}
+static int intel_plane_atomic_async_check(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct drm_crtc_state *crtc_state;
+
+ if (plane->type != DRM_PLANE_TYPE_CURSOR)
+ return -EINVAL;
+
+ crtc_state = drm_atomic_get_existing_crtc_state(state->state,
+ state->crtc);
+ if (WARN_ON(!crtc_state))
+ return -EINVAL;
+
+ /*
+ * When crtc is inactive or there is a modeset pending,
+ * wait for it to complete in the slowpath
+ */
+ if (!crtc_state->active || to_intel_crtc_state(crtc_state)->update_pipe)
+ return -EINVAL;
+
+ /*
+ * If any parameters change that may affect watermarks,
+ * take the slowpath. Only changing fb or position should be
+ * in the fastpath.
+ */
+ if (plane->state->crtc != state->crtc ||
+ plane->state->src_w != state->src_w ||
+ plane->state->src_h != state->src_h ||
+ plane->state->crtc_w != state->crtc_w ||
+ plane->state->crtc_h != state->crtc_h ||
+ !plane->state->fb != !state->fb)
+ return -EINVAL;
+
+ return 0;
+}
+
+static void intel_plane_atomic_async_update(struct drm_plane *plane,
+ struct drm_plane_state *new_state)
+{
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ struct drm_crtc *crtc = plane->state->crtc;
+ struct drm_framebuffer *old_fb;
+
+ old_fb = plane->state->fb;
+
+ i915_gem_track_fb(intel_fb_obj(old_fb), intel_fb_obj(new_state->fb),
+ intel_plane->frontbuffer_bit);
+
+ plane->state->src_x = new_state->src_x;
+ plane->state->src_y = new_state->src_y;
+ plane->state->crtc_x = new_state->crtc_x;
+ plane->state->crtc_y = new_state->crtc_y;
+ plane->state->fb = new_state->fb;
+
+ new_state->fb = old_fb;
+
+ if (plane->state->visible) {
+ trace_intel_update_plane(plane, to_intel_crtc(crtc));
+ intel_plane->update_plane(intel_plane,
+ to_intel_crtc_state(crtc->state),
+ to_intel_plane_state(plane->state));
+ } else {
+ trace_intel_disable_plane(plane, to_intel_crtc(crtc));
+ intel_plane->disable_plane(intel_plane, to_intel_crtc(crtc));
+ }
+}
+
const struct drm_plane_helper_funcs intel_plane_helper_funcs = {
.prepare_fb = intel_prepare_plane_fb,
.cleanup_fb = intel_cleanup_plane_fb,
.atomic_check = intel_plane_atomic_check,
.atomic_update = intel_plane_atomic_update,
+ .atomic_async_check = intel_plane_atomic_async_check,
+ .atomic_async_update = intel_plane_atomic_async_update,
};
/**
@@ -12319,6 +12319,9 @@ static int intel_atomic_check(struct drm_device *dev,
if (ret)
return ret;
+ if (state->legacy_cursor_update)
+ state->async_update = !drm_atomic_helper_async_check(dev,
+ state);
intel_fbc_choose_crtc(dev_priv, intel_state);
return calc_watermark_data(state);
}
@@ -12743,38 +12746,27 @@ static int intel_atomic_commit(struct drm_device *dev,
struct drm_i915_private *dev_priv = to_i915(dev);
int ret = 0;
- drm_atomic_state_get(state);
- i915_sw_fence_init(&intel_state->commit_ready,
- intel_atomic_commit_ready);
-
/*
- * The intel_legacy_cursor_update() fast path takes care
+ * The atomic async update fast path takes care
* of avoiding the vblank waits for simple cursor
* movement and flips. For cursor on/off and size changes,
* we want to perform the vblank waits so that watermark
* updates happen during the correct frames. Gen9+ have
* double buffered watermarks and so shouldn't need this.
- *
- * Unset state->legacy_cursor_update before the call to
- * drm_atomic_helper_setup_commit() because otherwise
- * drm_atomic_helper_wait_for_flip_done() is a noop and
- * we get FIFO underruns because we didn't wait
- * for vblank.
- *
- * FIXME doing watermarks and fb cleanup from a vblank worker
- * (assuming we had any) would solve these problems.
*/
- if (INTEL_GEN(dev_priv) < 9 && state->legacy_cursor_update) {
- struct intel_crtc_state *new_crtc_state;
- struct intel_crtc *crtc;
- int i;
+ if (state->async_update) {
+ ret = drm_atomic_helper_prepare_planes(dev, state);
+ if (ret)
+ return ret;
- for_each_new_intel_crtc_in_state(intel_state, crtc, new_crtc_state, i)
- if (new_crtc_state->wm.need_postvbl_update ||
- new_crtc_state->update_wm_post)
- state->legacy_cursor_update = false;
+ drm_atomic_helper_async_commit(dev, state);
+ return 0;
}
+ drm_atomic_state_get(state);
+ i915_sw_fence_init(&intel_state->commit_ready,
+ intel_atomic_commit_ready);
+
ret = intel_atomic_prepare_commit(dev, state);
if (ret) {
DRM_DEBUG_ATOMIC("Preparing state failed with %i\n", ret);
@@ -12963,6 +12955,9 @@ intel_prepare_plane_fb(struct drm_plane *plane,
struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->state->fb);
int ret;
+ if (new_state->state->async_update)
+ return 0;
+
if (old_obj) {
struct drm_crtc_state *crtc_state =
drm_atomic_get_new_crtc_state(new_state->state,
@@ -13346,122 +13341,8 @@ static struct drm_plane_funcs intel_plane_funcs = {
.format_mod_supported = intel_primary_plane_format_mod_supported,
};
-static int
-intel_legacy_cursor_update(struct drm_plane *plane,
- struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- int crtc_x, int crtc_y,
- unsigned int crtc_w, unsigned int crtc_h,
- uint32_t src_x, uint32_t src_y,
- uint32_t src_w, uint32_t src_h,
- struct drm_modeset_acquire_ctx *ctx)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- int ret;
- struct drm_plane_state *old_plane_state, *new_plane_state;
- struct intel_plane *intel_plane = to_intel_plane(plane);
- struct drm_framebuffer *old_fb;
- struct drm_crtc_state *crtc_state = crtc->state;
-
- /*
- * When crtc is inactive or there is a modeset pending,
- * wait for it to complete in the slowpath
- */
- if (!crtc_state->active || needs_modeset(crtc_state) ||
- to_intel_crtc_state(crtc_state)->update_pipe)
- goto slow;
-
- old_plane_state = plane->state;
- /*
- * Don't do an async update if there is an outstanding commit modifying
- * the plane. This prevents our async update's changes from getting
- * overridden by a previous synchronous update's state.
- */
- if (old_plane_state->commit &&
- !try_wait_for_completion(&old_plane_state->commit->hw_done))
- goto slow;
-
- /*
- * If any parameters change that may affect watermarks,
- * take the slowpath. Only changing fb or position should be
- * in the fastpath.
- */
- if (old_plane_state->crtc != crtc ||
- old_plane_state->src_w != src_w ||
- old_plane_state->src_h != src_h ||
- old_plane_state->crtc_w != crtc_w ||
- old_plane_state->crtc_h != crtc_h ||
- !old_plane_state->fb != !fb)
- goto slow;
-
- new_plane_state = intel_plane_duplicate_state(plane);
- if (!new_plane_state)
- return -ENOMEM;
-
- drm_atomic_set_fb_for_plane(new_plane_state, fb);
-
- new_plane_state->src_x = src_x;
- new_plane_state->src_y = src_y;
- new_plane_state->src_w = src_w;
- new_plane_state->src_h = src_h;
- new_plane_state->crtc_x = crtc_x;
- new_plane_state->crtc_y = crtc_y;
- new_plane_state->crtc_w = crtc_w;
- new_plane_state->crtc_h = crtc_h;
-
- ret = intel_plane_atomic_check_with_state(to_intel_crtc_state(crtc->state),
- to_intel_crtc_state(crtc->state), /* FIXME need a new crtc state? */
- to_intel_plane_state(plane->state),
- to_intel_plane_state(new_plane_state));
- if (ret)
- goto out_free;
-
- ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex);
- if (ret)
- goto out_free;
-
- ret = intel_plane_pin_fb(to_intel_plane_state(new_plane_state));
- if (ret)
- goto out_unlock;
-
- intel_fb_obj_flush(intel_fb_obj(fb), ORIGIN_FLIP);
-
- old_fb = old_plane_state->fb;
- i915_gem_track_fb(intel_fb_obj(old_fb), intel_fb_obj(fb),
- intel_plane->frontbuffer_bit);
-
- /* Swap plane state */
- plane->state = new_plane_state;
-
- if (plane->state->visible) {
- trace_intel_update_plane(plane, to_intel_crtc(crtc));
- intel_plane->update_plane(intel_plane,
- to_intel_crtc_state(crtc->state),
- to_intel_plane_state(plane->state));
- } else {
- trace_intel_disable_plane(plane, to_intel_crtc(crtc));
- intel_plane->disable_plane(intel_plane, to_intel_crtc(crtc));
- }
-
- intel_plane_unpin_fb(to_intel_plane_state(old_plane_state));
-
-out_unlock:
- mutex_unlock(&dev_priv->drm.struct_mutex);
-out_free:
- if (ret)
- intel_plane_destroy_state(plane, new_plane_state);
- else
- intel_plane_destroy_state(plane, old_plane_state);
- return ret;
-
-slow:
- return drm_atomic_helper_update_plane(plane, crtc, fb,
- crtc_x, crtc_y, crtc_w, crtc_h,
- src_x, src_y, src_w, src_h, ctx);
-}
-
static const struct drm_plane_funcs intel_cursor_plane_funcs = {
- .update_plane = intel_legacy_cursor_update,
+ .update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = intel_plane_destroy,
.atomic_get_property = intel_plane_atomic_get_property,