[Intel-gfx] [PATCH 8/8] drm/i915: Move atomic crtc update checking to the check crtc function.
Maarten Lankhorst
maarten.lankhorst at linux.intel.com
Wed Apr 15 07:34:46 PDT 2015
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
drivers/gpu/drm/i915/intel_atomic_plane.c | 18 +--
drivers/gpu/drm/i915/intel_display.c | 196 ++++++++++++++++++++----------
drivers/gpu/drm/i915/intel_sprite.c | 25 +---
3 files changed, 134 insertions(+), 105 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
index a27ee8cbb627..4b639b54583d 100644
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -123,8 +123,10 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
* anything driver-specific we need to test in that case, so
* just return success.
*/
- if (!crtc)
+ if (!crtc || !intel_crtc->active || !state->fb) {
+ intel_state->visible = 0;
return 0;
+ }
/*
* The original src/dest coordinates are stored in state->base, but
@@ -148,20 +150,6 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
intel_state->clip.y2 =
intel_crtc->active ? intel_crtc->config->pipe_src_h : 0;
- /*
- * Disabling a plane is always okay; we just need to update
- * fb tracking in a special way since cleanup_fb() won't
- * get called by the plane helpers.
- */
- if (state->fb == NULL && plane->state->fb != NULL) {
- /*
- * 'prepare' is never called when plane is being disabled, so
- * we need to handle frontbuffer tracking as a special case
- */
- intel_crtc->atomic.disabled_planes |=
- (1 << drm_plane_index(plane));
- }
-
if (state->fb && intel_rotation_90_or_270(state->rotation)) {
if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index cb677aff4245..4f27597486d8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -101,6 +101,8 @@ static void vlv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *pipe_config);
static void chv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *pipe_config);
+static int intel_atomic_check_crtc(struct drm_crtc *crtc,
+ struct drm_crtc_state *crtc_state);
static void intel_begin_crtc_commit(struct drm_crtc *crtc);
static void intel_finish_crtc_commit(struct drm_crtc *crtc);
static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc,
@@ -10646,6 +10648,7 @@ static struct drm_crtc_helper_funcs intel_helper_funcs = {
.load_lut = intel_crtc_load_lut,
.atomic_begin = intel_begin_crtc_commit,
.atomic_flush = intel_finish_crtc_commit,
+ .atomic_check = intel_atomic_check_crtc,
};
/**
@@ -12773,6 +12776,9 @@ bool intel_wm_need_update(struct drm_plane *plane,
plane->state->rotation != state->rotation)
return true;
+ if (plane->type == DRM_PLANE_TYPE_CURSOR)
+ return plane->state->crtc_w != state->crtc_w;
+
return false;
}
@@ -12867,7 +12873,6 @@ intel_check_primary_plane(struct drm_plane *plane,
struct intel_plane_state *state)
{
struct drm_device *dev = plane->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_crtc *crtc = state->base.crtc;
struct intel_crtc *intel_crtc;
struct drm_framebuffer *fb = state->base.fb;
@@ -12875,7 +12880,6 @@ intel_check_primary_plane(struct drm_plane *plane,
struct drm_rect *src = &state->src;
const struct drm_rect *clip = &state->clip;
bool can_position = false;
- int ret;
crtc = crtc ? crtc : plane->crtc;
intel_crtc = to_intel_crtc(crtc);
@@ -12883,58 +12887,12 @@ intel_check_primary_plane(struct drm_plane *plane,
if (INTEL_INFO(dev)->gen >= 9)
can_position = true;
- ret = drm_plane_helper_check_update(plane, crtc, fb,
- src, dest, clip,
- DRM_PLANE_HELPER_NO_SCALING,
- DRM_PLANE_HELPER_NO_SCALING,
- can_position, true,
- &state->visible);
- if (ret)
- return ret;
-
- if (intel_crtc->active) {
- struct intel_plane_state *old_state =
- to_intel_plane_state(plane->state);
-
- intel_crtc->atomic.wait_for_flips = true;
-
- /*
- * FBC does not work on some platforms for rotated
- * planes, so disable it when rotation is not 0 and
- * update it when rotation is set back to 0.
- *
- * FIXME: This is redundant with the fbc update done in
- * the primary plane enable function except that that
- * one is done too late. We eventually need to unify
- * this.
- */
- if (state->visible &&
- INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) &&
- dev_priv->fbc.crtc == intel_crtc &&
- state->base.rotation != BIT(DRM_ROTATE_0)) {
- intel_crtc->atomic.disable_fbc = true;
- }
-
- if (state->visible && !old_state->visible) {
- /*
- * BDW signals flip done immediately if the plane
- * is disabled, even if the plane enable is already
- * armed to occur at the next vblank :(
- */
- if (IS_BROADWELL(dev))
- intel_crtc->atomic.wait_vblank = true;
- }
-
- intel_crtc->atomic.fb_bits |=
- INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe);
-
- intel_crtc->atomic.update_fbc = true;
-
- if (intel_wm_need_update(plane, &state->base))
- intel_crtc->atomic.update_wm = true;
- }
-
- return 0;
+ return drm_plane_helper_check_update(plane, crtc, fb,
+ src, dest, clip,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ can_position, true,
+ &state->visible);
}
static void
@@ -12976,6 +12934,121 @@ intel_disable_primary_plane(struct drm_plane *plane,
dev_priv->display.update_primary_plane(crtc, NULL, 0, 0);
}
+
+/* Transitional checking here, mostly for plane updates */
+static int intel_atomic_check_crtc(struct drm_crtc *crtc,
+ struct drm_crtc_state *crtc_state)
+{
+ struct intel_crtc_state *pipe_config = to_intel_crtc_state(crtc_state);
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct drm_atomic_state *state = crtc_state->state;
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ unsigned plane_mask;
+ int i, nplanes = dev->mode_config.num_total_plane;
+ bool mode_changed = crtc_state->mode_changed;
+
+ if (!crtc_state->planes_changed)
+ return 0;
+
+ if (!intel_crtc->active)
+ return 0;
+
+ intel_crtc->atomic.update_wm = mode_changed;
+
+ DRM_DEBUG_ATOMIC("Crtc %i was enabled %i now enabled: %i\n", drm_crtc_index(crtc), crtc->state->enable, crtc_state->enable);
+
+ plane_mask = crtc_state->plane_mask | crtc->state->plane_mask;
+ for (i = 0; i < nplanes; i++) {
+ struct intel_plane_state *plane_state, *old_plane_state;
+ struct intel_plane *plane = to_intel_plane(state->planes[i]);
+ bool turn_off, turn_on, visible, was_visible;
+
+ if (!plane)
+ continue;
+
+ plane_state = to_intel_plane_state(state->plane_states[i]);
+ old_plane_state = to_intel_plane_state(plane->base.state);
+
+ was_visible = old_plane_state->visible && crtc->state->enable;
+ visible = plane_state->visible && crtc_state->enable;
+
+ turn_off = was_visible && (!visible || mode_changed);
+ turn_on = visible && (!was_visible || mode_changed);
+
+ DRM_DEBUG_ATOMIC("Plane %i with fb %p and crtc %p, was_visible %i, visible %i, turn_off %i, turn_on %i, modeset: %i\n",
+ i, plane_state->base.fb, plane_state->base.crtc, was_visible, visible, turn_off, turn_on, mode_changed);
+
+ /* plane being turned off as part of modeset or changes? */
+ if (intel_wm_need_update(&plane->base, &plane_state->base))
+ intel_crtc->atomic.update_wm = true;
+
+ if (old_plane_state->base.fb && !plane_state->base.fb)
+ /*
+ * 'prepare' is never called when plane is being disabled, so
+ * we need to handle frontbuffer tracking as a special case
+ */
+ intel_crtc->atomic.disabled_planes |=
+ (1 << drm_plane_index(&plane->base));
+
+ switch (plane->base.type) {
+ case DRM_PLANE_TYPE_PRIMARY:
+ intel_crtc->atomic.fb_bits |=
+ INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe);
+
+ intel_crtc->atomic.wait_for_flips = true;
+ intel_crtc->atomic.pre_disable_primary = turn_off;
+ intel_crtc->atomic.post_enable_primary = turn_on;
+
+ if (turn_off)
+ intel_crtc->atomic.disable_fbc = true;
+
+ /*
+ * FBC does not work on some platforms for rotated
+ * planes, so disable it when rotation is not 0 and
+ * update it when rotation is set back to 0.
+ *
+ * FIXME: This is redundant with the fbc update done in
+ * the primary plane enable function except that that
+ * one is done too late. We eventually need to unify
+ * this.
+ */
+
+ if (visible &&
+ INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) &&
+ dev_priv->fbc.crtc == intel_crtc &&
+ plane_state->base.rotation != BIT(DRM_ROTATE_0))
+ intel_crtc->atomic.disable_fbc = true;
+
+ /*
+ * BDW signals flip done immediately if the plane
+ * is disabled, even if the plane enable is already
+ * armed to occur at the next vblank :(
+ */
+ if (turn_on && IS_BROADWELL(dev))
+ intel_crtc->atomic.wait_vblank = true;
+
+ intel_crtc->atomic.update_fbc = true;
+ break;
+ case DRM_PLANE_TYPE_CURSOR:
+ intel_crtc->atomic.fb_bits |=
+ INTEL_FRONTBUFFER_CURSOR(intel_crtc->pipe);
+ break;
+ case DRM_PLANE_TYPE_OVERLAY:
+ intel_crtc->atomic.fb_bits |=
+ INTEL_FRONTBUFFER_SPRITE(intel_crtc->pipe);
+
+ if (turn_off) {
+ intel_crtc->atomic.wait_vblank = true;
+ intel_crtc->atomic.update_sprite_watermarks |=
+ (1 << drm_plane_index(&plane->base));
+ }
+ break;
+ }
+ }
+ return 0;
+}
+
static void intel_begin_crtc_commit(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
@@ -13190,7 +13263,7 @@ intel_check_cursor_plane(struct drm_plane *plane,
/* if we want to turn off the cursor ignore width and height */
if (!obj)
- goto finish;
+ return 0;
/* Check for which cursor types we support */
if (!cursor_size_ok(dev, state->base.crtc_w, state->base.crtc_h)) {
@@ -13207,19 +13280,10 @@ intel_check_cursor_plane(struct drm_plane *plane,
if (fb->modifier[0] != DRM_FORMAT_MOD_NONE) {
DRM_DEBUG_KMS("cursor cannot be tiled\n");
- ret = -EINVAL;
- }
-
-finish:
- if (intel_crtc->active) {
- if (plane->state->crtc_w != state->base.crtc_w)
- intel_crtc->atomic.update_wm = true;
-
- intel_crtc->atomic.fb_bits |=
- INTEL_FRONTBUFFER_CURSOR(intel_crtc->pipe);
+ return -EINVAL;
}
- return ret;
+ return 0;
}
static void
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 7419e04b113f..9cf35c33bc61 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -815,7 +815,7 @@ intel_check_sprite_plane(struct drm_plane *plane,
if (!fb) {
state->visible = false;
- goto finish;
+ return 0;
}
/* Don't modify another pipe's plane */
@@ -952,29 +952,6 @@ intel_check_sprite_plane(struct drm_plane *plane,
dst->y1 = crtc_y;
dst->y2 = crtc_y + crtc_h;
-finish:
- /*
- * If the sprite is completely covering the primary plane,
- * we can disable the primary and save power.
- */
- if (intel_crtc->active) {
- intel_crtc->atomic.fb_bits |=
- INTEL_FRONTBUFFER_SPRITE(intel_crtc->pipe);
-
- if (intel_wm_need_update(plane, &state->base))
- intel_crtc->atomic.update_wm = true;
-
- if (!state->visible) {
- /*
- * Avoid underruns when disabling the sprite.
- * FIXME remove once watermark updates are done properly.
- */
- intel_crtc->atomic.wait_vblank = true;
- intel_crtc->atomic.update_sprite_watermarks |=
- (1 << drm_plane_index(plane));
- }
- }
-
return 0;
}
--
2.1.0
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