From: Maarten Lankhorst <d...@lankhorst.se>
Regular path should be fast enough, even for i915.
Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_cursor.c | 146 +-------------------
1 file changed, 1 insertion(+), 145 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c
b/drivers/gpu/drm/i915/display/intel_cursor.c
index b342fad180ca..37c0d3d40e6f 100644
--- a/drivers/gpu/drm/i915/display/intel_cursor.c
+++ b/drivers/gpu/drm/i915/display/intel_cursor.c
@@ -603,152 +603,8 @@ static bool intel_cursor_format_mod_supported(struct
drm_plane *_plane,
return format == DRM_FORMAT_ARGB8888;
}
-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,
- u32 src_x, u32 src_y,
- u32 src_w, u32 src_h,
- struct drm_modeset_acquire_ctx *ctx)
-{
- struct intel_plane *plane = to_intel_plane(_plane);
- struct intel_crtc *crtc = to_intel_crtc(_crtc);
- struct intel_plane_state *old_plane_state =
- to_intel_plane_state(plane->base.state);
- struct intel_plane_state *new_plane_state;
- struct intel_crtc_state *crtc_state =
- to_intel_crtc_state(crtc->base.state);
- struct intel_crtc_state *new_crtc_state;
- int ret;
-
- /*
- * When crtc is inactive or there is a modeset pending,
- * wait for it to complete in the slowpath.
- * PSR2 selective fetch also requires the slow path as
- * PSR2 plane and transcoder registers can only be updated during
- * vblank.
- *
- * FIXME bigjoiner fastpath would be good
- */
- if (!crtc_state->hw.active ||
- intel_crtc_needs_modeset(crtc_state) ||
- intel_crtc_needs_fastset(crtc_state) ||
- crtc_state->bigjoiner_pipes)
- goto slow;
-
- /*
- * 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->uapi.commit &&
- !try_wait_for_completion(&old_plane_state->uapi.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->uapi.crtc != &crtc->base ||
- old_plane_state->uapi.src_w != src_w ||
- old_plane_state->uapi.src_h != src_h ||
- old_plane_state->uapi.crtc_w != crtc_w ||
- old_plane_state->uapi.crtc_h != crtc_h ||
- !old_plane_state->uapi.fb != !fb)
- goto slow;
-
- new_plane_state =
to_intel_plane_state(intel_plane_duplicate_state(&plane->base));
- if (!new_plane_state)
- return -ENOMEM;
-
- new_crtc_state =
to_intel_crtc_state(intel_crtc_duplicate_state(&crtc->base));
- if (!new_crtc_state) {
- ret = -ENOMEM;
- goto out_free;
- }
-
- drm_atomic_set_fb_for_plane(&new_plane_state->uapi, fb);
-
- new_plane_state->uapi.src_x = src_x;
- new_plane_state->uapi.src_y = src_y;
- new_plane_state->uapi.src_w = src_w;
- new_plane_state->uapi.src_h = src_h;
- new_plane_state->uapi.crtc_x = crtc_x;
- new_plane_state->uapi.crtc_y = crtc_y;
- new_plane_state->uapi.crtc_w = crtc_w;
- new_plane_state->uapi.crtc_h = crtc_h;
-
- intel_plane_copy_uapi_to_hw_state(new_plane_state, new_plane_state,
crtc);
-
- ret = intel_plane_atomic_check_with_state(crtc_state, new_crtc_state,
- old_plane_state,
new_plane_state);
- if (ret)
- goto out_free;
-
- ret = intel_plane_pin_fb(new_plane_state);
- if (ret)
- goto out_free;
-
- intel_frontbuffer_flush(to_intel_frontbuffer(new_plane_state->hw.fb),
- ORIGIN_CURSOR_UPDATE);
- intel_frontbuffer_track(to_intel_frontbuffer(old_plane_state->hw.fb),
- to_intel_frontbuffer(new_plane_state->hw.fb),
- plane->frontbuffer_bit);
-
- /* Swap plane state */
- plane->base.state = &new_plane_state->uapi;
-
- /*
- * We cannot swap crtc_state as it may be in use by an atomic commit or
- * page flip that's running simultaneously. If we swap crtc_state and
- * destroy the old state, we will cause a use-after-free there.
- *
- * Only update active_planes, which is needed for our internal
- * bookkeeping. Either value will do the right thing when updating
- * planes atomically. If the cursor was part of the atomic update then
- * we would have taken the slowpath.
- */
- crtc_state->active_planes = new_crtc_state->active_planes;
-
- /*
- * Technically we should do a vblank evasion here to make
- * sure all the cursor registers update on the same frame.
- * For now just make sure the register writes happen as
- * quickly as possible to minimize the race window.
- */
- local_irq_disable();
-
- if (new_plane_state->uapi.visible) {
- intel_plane_update_noarm(plane, crtc_state, new_plane_state);
- intel_plane_update_arm(plane, crtc_state, new_plane_state);
- } else {
- intel_plane_disable_arm(plane, crtc_state);
- }
-
- local_irq_enable();
-
- intel_plane_unpin_fb(old_plane_state);
-
-out_free:
- if (new_crtc_state)
- intel_crtc_destroy_state(&crtc->base, &new_crtc_state->uapi);
- if (ret)
- intel_plane_destroy_state(&plane->base, &new_plane_state->uapi);
- else
- intel_plane_destroy_state(&plane->base, &old_plane_state->uapi);
- return ret;
-
-slow:
- return drm_atomic_helper_update_plane(&plane->base, &crtc->base, 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_duplicate_state = intel_plane_duplicate_state,
--
2.40.1
