static void
skl_ddb_get_pipe_allocation_limits(struct drm_device *dev,
const struct intel_crtc_state *cstate,
- struct intel_wm_config *config,
struct skl_ddb_entry *alloc, /* out */
int *num_active /* out */)
{
struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_crtc *for_crtc = cstate->base.crtc;
- struct drm_crtc *crtc;
unsigned int pipe_size, ddb_size;
int nth_active_pipe;
int pipe = to_intel_crtc(for_crtc)->pipe;
- if (intel_state && intel_state->active_pipe_changes)
- *num_active = hweight32(intel_state->active_crtcs);
- else if (intel_state)
- *num_active = hweight32(dev_priv->active_crtcs);
- else
- *num_active = config->num_pipes_active;
-
- if (!cstate->base.active) {
+ if (WARN_ON(!state) || !cstate->base.active) {
alloc->start = 0;
alloc->end = 0;
+ *num_active = hweight32(dev_priv->active_crtcs);
return;
}
+ if (intel_state->active_pipe_changes)
+ *num_active = hweight32(intel_state->active_crtcs);
+ else
+ *num_active = hweight32(dev_priv->active_crtcs);
+
if (IS_BROXTON(dev))
ddb_size = BXT_DDB_SIZE;
else
ddb_size -= 4; /* 4 blocks for bypass path allocation */
/*
- * FIXME: At the moment we may be called on either in-flight or fully
- * committed cstate's. Once we fully move DDB allocation in the check
- * phase, we'll only be called on in-flight states and the 'else'
- * branch here will go away.
- *
- * The 'else' branch is slightly racy here, but it was racy to begin
- * with; since it's going away soon, no effort is made to address that.
+ * If the state doesn't change the active CRTC's, then there's
+ * no need to recalculate; the existing pipe allocation limits
+ * should remain unchanged. Note that we're safe from racing
+ * commits since any racing commit that changes the active CRTC
+ * list would need to grab _all_ crtc locks, including the one
+ * we currently hold.
*/
- if (state) {
- /*
- * If the state doesn't change the active CRTC's, then there's
- * no need to recalculate; the existing pipe allocation limits
- * should remain unchanged. Note that we're safe from racing
- * commits since any racing commit that changes the active CRTC
- * list would need to grab _all_ crtc locks, including the one
- * we currently hold.
- */
- if (!intel_state->active_pipe_changes) {
- *alloc = dev_priv->wm.skl_hw.ddb.pipe[pipe];
- return;
- }
-
- nth_active_pipe = hweight32(intel_state->active_crtcs &
- (drm_crtc_mask(for_crtc) - 1));
- pipe_size = ddb_size / hweight32(intel_state->active_crtcs);
- alloc->start = nth_active_pipe * ddb_size / *num_active;
- alloc->end = alloc->start + pipe_size;
- } else {
- nth_active_pipe = 0;
- for_each_crtc(dev, crtc) {
- if (!to_intel_crtc(crtc)->active)
- continue;
-
- if (crtc == for_crtc)
- break;
-
- nth_active_pipe++;
- }
-
- pipe_size = ddb_size / config->num_pipes_active;
- alloc->start = nth_active_pipe * ddb_size /
- config->num_pipes_active;
- alloc->end = alloc->start + pipe_size;
+ if (!intel_state->active_pipe_changes) {
+ *alloc = dev_priv->wm.skl_hw.ddb.pipe[pipe];
+ return;
}
+
+ nth_active_pipe = hweight32(intel_state->active_crtcs &
+ (drm_crtc_mask(for_crtc) - 1));
+ pipe_size = ddb_size / hweight32(intel_state->active_crtcs);
+ alloc->start = nth_active_pipe * ddb_size / *num_active;
+ alloc->end = alloc->start + pipe_size;
}
static unsigned int skl_cursor_allocation(int num_active)
struct drm_crtc *crtc = cstate->crtc;
struct drm_device *dev = crtc->dev;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ const struct drm_plane *plane;
const struct intel_plane *intel_plane;
+ struct drm_plane_state *pstate;
unsigned int rate, total_data_rate = 0;
int id;
+ int i;
+
+ if (WARN_ON(!state))
+ return 0;
/* Calculate and cache data rate for each plane */
- /*
- * FIXME: At the moment this function can be called on either an
- * in-flight or a committed state object. If it's in-flight then we
- * only want to re-calculate the plane data rate for planes that are
- * part of the transaction (i.e., we don't want to grab any additional
- * plane states if we don't have to). If we're operating on committed
- * state, we'll just go ahead and recalculate the plane data rate for
- * all planes.
- *
- * Once we finish moving our DDB allocation to the atomic check phase,
- * we'll only be calling this function on in-flight state objects, so
- * the 'else' branch here will go away.
- */
- if (state) {
- struct drm_plane *plane;
- struct drm_plane_state *pstate;
- int i;
-
- for_each_plane_in_state(state, plane, pstate, i) {
- intel_plane = to_intel_plane(plane);
- id = skl_wm_plane_id(intel_plane);
-
- if (intel_plane->pipe != intel_crtc->pipe)
- continue;
-
- /* packed/uv */
- rate = skl_plane_relative_data_rate(intel_cstate,
- pstate, 0);
- intel_cstate->wm.skl.plane_data_rate[id] = rate;
-
- /* y-plane */
- rate = skl_plane_relative_data_rate(intel_cstate,
- pstate, 1);
- intel_cstate->wm.skl.plane_y_data_rate[id] = rate;
- }
- } else {
- for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
- const struct drm_plane_state *pstate =
- intel_plane->base.state;
- int id = skl_wm_plane_id(intel_plane);
+ for_each_plane_in_state(state, plane, pstate, i) {
+ id = skl_wm_plane_id(to_intel_plane(plane));
+ intel_plane = to_intel_plane(plane);
- /* packed/uv */
- rate = skl_plane_relative_data_rate(intel_cstate,
- pstate, 0);
- intel_cstate->wm.skl.plane_data_rate[id] = rate;
+ if (intel_plane->pipe != intel_crtc->pipe)
+ continue;
- /* y-plane */
- rate = skl_plane_relative_data_rate(intel_cstate,
- pstate, 1);
- intel_cstate->wm.skl.plane_y_data_rate[id] = rate;
- }
+ /* packed/uv */
+ rate = skl_plane_relative_data_rate(intel_cstate,
+ pstate, 0);
+ intel_cstate->wm.skl.plane_data_rate[id] = rate;
+
+ /* y-plane */
+ rate = skl_plane_relative_data_rate(intel_cstate,
+ pstate, 1);
+ intel_cstate->wm.skl.plane_y_data_rate[id] = rate;
}
/* Calculate CRTC's total data rate from cached values */
struct drm_atomic_state *state = cstate->base.state;
struct drm_crtc *crtc = cstate->base.crtc;
struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_wm_config *config = &dev_priv->wm.config;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_plane *intel_plane;
struct drm_plane *plane;
int num_active;
int id, i;
+ if (WARN_ON(!state))
+ return 0;
+
if (!cstate->base.active) {
ddb->pipe[pipe].start = ddb->pipe[pipe].end = 0;
memset(ddb->plane[pipe], 0, sizeof(ddb->plane[pipe]));
return 0;
}
- skl_ddb_get_pipe_allocation_limits(dev, cstate, config, alloc,
- &num_active);
+ skl_ddb_get_pipe_allocation_limits(dev, cstate, alloc, &num_active);
alloc_size = skl_ddb_entry_size(alloc);
if (alloc_size == 0) {
memset(ddb->plane[pipe], 0, sizeof(ddb->plane[pipe]));
ddb->plane[pipe][PLANE_CURSOR].end = alloc->end;
alloc_size -= cursor_blocks;
- alloc->end -= cursor_blocks;
/* 1. Allocate the mininum required blocks for each active plane */
- /*
- * TODO: Remove support for already-committed state once we
- * only allocate DDB on in-flight states.
- */
- if (state) {
- for_each_plane_in_state(state, plane, pstate, i) {
- intel_plane = to_intel_plane(plane);
- id = skl_wm_plane_id(intel_plane);
-
- if (intel_plane->pipe != pipe)
- continue;
-
- if (!to_intel_plane_state(pstate)->visible) {
- minimum[id] = 0;
- y_minimum[id] = 0;
- continue;
- }
- if (plane->type == DRM_PLANE_TYPE_CURSOR) {
- minimum[id] = 0;
- y_minimum[id] = 0;
- continue;
- }
-
- minimum[id] = 8;
- if (pstate->fb->pixel_format == DRM_FORMAT_NV12)
- y_minimum[id] = 8;
- else
- y_minimum[id] = 0;
- }
- } else {
- for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
- struct drm_plane *plane = &intel_plane->base;
- struct drm_framebuffer *fb = plane->state->fb;
- int id = skl_wm_plane_id(intel_plane);
-
- if (!to_intel_plane_state(plane->state)->visible)
- continue;
+ for_each_plane_in_state(state, plane, pstate, i) {
+ intel_plane = to_intel_plane(plane);
+ id = skl_wm_plane_id(intel_plane);
- if (plane->type == DRM_PLANE_TYPE_CURSOR)
- continue;
+ if (intel_plane->pipe != pipe)
+ continue;
- minimum[id] = 8;
- y_minimum[id] = (fb->pixel_format == DRM_FORMAT_NV12) ? 8 : 0;
+ if (!to_intel_plane_state(pstate)->visible) {
+ minimum[id] = 0;
+ y_minimum[id] = 0;
+ continue;
+ }
+ if (plane->type == DRM_PLANE_TYPE_CURSOR) {
+ minimum[id] = 0;
+ y_minimum[id] = 0;
+ continue;
}
+
+ minimum[id] = 8;
+ if (pstate->fb->pixel_format == DRM_FORMAT_NV12)
+ y_minimum[id] = 8;
+ else
+ y_minimum[id] = 0;
}
for (i = 0; i < PLANE_CURSOR; i++) {
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
- WARN_ON(skl_allocate_pipe_ddb(cstate, ddb) != 0);
skl_build_pipe_wm(cstate, ddb, pipe_wm);
if (!memcmp(&intel_crtc->wm.active.skl, pipe_wm, sizeof(*pipe_wm)))
memset(watermarks->plane_trans[pipe],
0, sizeof(uint32_t) * I915_MAX_PLANES);
watermarks->plane_trans[pipe][PLANE_CURSOR] = 0;
-
- /* Clear ddb entries for pipe */
- memset(&watermarks->ddb.pipe[pipe], 0, sizeof(struct skl_ddb_entry));
- memset(&watermarks->ddb.plane[pipe], 0,
- sizeof(struct skl_ddb_entry) * I915_MAX_PLANES);
- memset(&watermarks->ddb.y_plane[pipe], 0,
- sizeof(struct skl_ddb_entry) * I915_MAX_PLANES);
- memset(&watermarks->ddb.plane[pipe][PLANE_CURSOR], 0,
- sizeof(struct skl_ddb_entry));
-
}
static int
projects / platform / kernel / linux-exynos.git / commitdiff