Rather that just comparing and then throwing away the pipe watermark
values we precomputed at atomic check time, actually use those values
when we program watermarks.
FIXME: This should be squashed into the previous patch eventually, once
we're convinced that pre-computed watermarks get the proper values in
all cases.
Signed-off-by: Matt Roper <matthew.d.ro...@intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 3 +-
drivers/gpu/drm/i915/intel_atomic.c | 4 +-
drivers/gpu/drm/i915/intel_drv.h | 3 --
drivers/gpu/drm/i915/intel_pm.c | 77 +++++++++++--------------------------
4 files changed, 24 insertions(+), 63 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 214ce76..d577eba 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -563,8 +563,7 @@ struct drm_i915_display_funcs {
struct dpll *match_clock,
struct dpll *best_clock);
int (*compute_pipe_wm)(struct drm_crtc *crtc,
- struct drm_atomic_state *state,
- void *target);
+ struct drm_atomic_state *state);
void (*update_wm)(struct drm_crtc *crtc);
void (*update_sprite_wm)(struct drm_plane *plane,
struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/i915/intel_atomic.c
b/drivers/gpu/drm/i915/intel_atomic.c
index db349dd..5294840 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -435,14 +435,12 @@ intel_check_crtc(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- struct intel_crtc_state *intel_state = to_intel_crtc_state(state);
int ret;
if (!dev_priv->display.compute_pipe_wm)
return 0;
- ret = dev_priv->display.compute_pipe_wm(crtc, state->state,
- &intel_state->wm.tmp);
+ ret = dev_priv->display.compute_pipe_wm(crtc, state->state);
return ret;
}
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 6ca3c06..627741a 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -464,9 +464,6 @@ struct intel_crtc_state {
struct intel_crtc_scaler_state scaler_state;
struct {
- /* tmp wm */
- struct intel_pipe_wm tmp;
-
/* final, target watermarks for state */
union {
struct intel_pipe_wm ilk;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 017b184..27337fe 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2073,10 +2073,9 @@ static void ilk_compute_wm_config(struct drm_device *dev,
/* Compute new watermarks for the pipe */
static int ilk_compute_pipe_wm(struct drm_crtc *crtc,
- struct drm_atomic_state *state,
- void *target)
+ struct drm_atomic_state *state)
{
- struct intel_pipe_wm *pipe_wm = target;
+ struct intel_pipe_wm *pipe_wm;
struct drm_device *dev = crtc->dev;
const struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
@@ -2094,47 +2093,26 @@ static int ilk_compute_pipe_wm(struct drm_crtc *crtc,
};
struct ilk_wm_maximums max;
- /*
- * FIXME: In an upcoming patch, we'll *only* be calling this from the
- * atomic 'check' codepath and thus will always have a top-level atomic
- * transaction. However at the moment we still call this in the legacy
- * 'ilk_update_wm' function, which means we need to be able to also
- * operate on already-committed state which has been detached from any
- * top-level transaction.
- *
- * Drop the 'else' block here once we only do atomic-style watermarks.
- */
- if (state) {
- cs = drm_atomic_get_crtc_state(state, crtc);
- if (IS_ERR(cs))
- return PTR_ERR(cs);
- else
- cstate = to_intel_crtc_state(cs);
-
- for_each_intel_plane_of_crtc(intel_crtc, intel_plane) {
- ps = drm_atomic_get_plane_state(state,
- &intel_plane->base);
- if (IS_ERR(ps))
- return PTR_ERR(ps);
-
- if (intel_plane->base.type == DRM_PLANE_TYPE_PRIMARY)
- pristate = to_intel_plane_state(ps);
- else if (intel_plane->base.type ==
DRM_PLANE_TYPE_OVERLAY)
- sprstate = to_intel_plane_state(ps);
- else if (intel_plane->base.type ==
DRM_PLANE_TYPE_CURSOR)
- curstate = to_intel_plane_state(ps);
- }
- } else {
- /* Use already-committed state */
- cstate = to_intel_crtc_state(crtc->state);
- for_each_intel_plane_of_crtc(intel_crtc, intel_plane) {
- if (intel_plane->base.type == DRM_PLANE_TYPE_OVERLAY) {
- sprstate =
to_intel_plane_state(intel_plane->base.state);
- break;
- }
- }
- pristate = to_intel_plane_state(crtc->primary->state);
- curstate = to_intel_plane_state(crtc->cursor->state);
+ cs = drm_atomic_get_crtc_state(state, crtc);
+ if (IS_ERR(cs))
+ return PTR_ERR(cs);
+ else
+ cstate = to_intel_crtc_state(cs);
+
+ pipe_wm = &cstate->wm.target.ilk;
+
+ for_each_intel_plane_of_crtc(intel_crtc, intel_plane) {
+ ps = drm_atomic_get_plane_state(state,
+ &intel_plane->base);
+ if (IS_ERR(ps))
+ return PTR_ERR(ps);
+
+ if (intel_plane->base.type == DRM_PLANE_TYPE_PRIMARY)
+ pristate = to_intel_plane_state(ps);
+ else if (intel_plane->base.type == DRM_PLANE_TYPE_OVERLAY)
+ sprstate = to_intel_plane_state(ps);
+ else if (intel_plane->base.type == DRM_PLANE_TYPE_CURSOR)
+ curstate = to_intel_plane_state(ps);
}
config.sprites_enabled = sprstate->visible;
@@ -3511,17 +3489,6 @@ static void ilk_program_watermarks(struct
drm_i915_private *dev_priv)
static void ilk_update_wm(struct drm_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
- struct intel_pipe_wm pipe_wm = {};
-
- ilk_compute_pipe_wm(crtc, NULL, &pipe_wm);
- WARN(memcmp(&cstate->wm.tmp, &pipe_wm, sizeof(pipe_wm)) != 0,
- "Pre-computed atomic watermark values do not match final values!");
-
- if (!memcmp(&cstate->wm.target.ilk, &pipe_wm, sizeof(pipe_wm)))
- return;
-
- cstate->wm.target.ilk = pipe_wm;
ilk_program_watermarks(dev_priv);
}
--
1.8.5.1
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