drm/i915/gen9+: Program watermarks as a separate step during evasion, v3.
The watermark updates for SKL style watermarks are no longer done
in the plane callbacks, but are now called in a separate watermark
update function that's called during the same vblank evasion,
before the plane updates.
This also gets rid of the global skl_results, which was required for
keeping track of the current atomic commit.
Changes since v1:
- Move line unwrap to correct patch. (Lyude)
- Make sure we don't regress ILK watermarks. (Matt)
- Rephrase commit message. (Matt)
Changes since v2:
- Fix disable watermark check to use the correct way to determine single
step watermark support.
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lyude <cpaul@redhat.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1478609742-13603-3-git-send-email-maarten.lankhorst@linux.intel.com
[mlankhorst: Small whitespace fix in skl_initial_wm]
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 218d1f4..a5f75e1 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3391,9 +3391,6 @@ static void skylake_update_primary_plane(struct drm_plane *plane,
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
struct drm_framebuffer *fb = plane_state->base.fb;
- const struct skl_wm_values *wm = &dev_priv->wm.skl_results;
- const struct skl_plane_wm *p_wm =
- &crtc_state->wm.skl.optimal.planes[0];
int pipe = intel_crtc->pipe;
u32 plane_ctl;
unsigned int rotation = plane_state->base.rotation;
@@ -3429,9 +3426,6 @@ static void skylake_update_primary_plane(struct drm_plane *plane,
intel_crtc->adjusted_x = src_x;
intel_crtc->adjusted_y = src_y;
- if (wm->dirty_pipes & drm_crtc_mask(&intel_crtc->base))
- skl_write_plane_wm(intel_crtc, p_wm, &wm->ddb, 0);
-
I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
I915_WRITE(PLANE_OFFSET(pipe, 0), (src_y << 16) | src_x);
I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
@@ -3464,18 +3458,8 @@ static void skylake_disable_primary_plane(struct drm_plane *primary,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
- const struct skl_plane_wm *p_wm = &cstate->wm.skl.optimal.planes[0];
int pipe = intel_crtc->pipe;
- /*
- * We only populate skl_results on watermark updates, and if the
- * plane's visiblity isn't actually changing neither is its watermarks.
- */
- if (!crtc->primary->state->visible)
- skl_write_plane_wm(intel_crtc, p_wm,
- &dev_priv->wm.skl_results.ddb, 0);
-
I915_WRITE(PLANE_CTL(pipe, 0), 0);
I915_WRITE(PLANE_SURF(pipe, 0), 0);
POSTING_READ(PLANE_SURF(pipe, 0));
@@ -10865,16 +10849,9 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
- const struct skl_wm_values *wm = &dev_priv->wm.skl_results;
- const struct skl_plane_wm *p_wm =
- &cstate->wm.skl.optimal.planes[PLANE_CURSOR];
int pipe = intel_crtc->pipe;
uint32_t cntl = 0;
- if (INTEL_GEN(dev_priv) >= 9 && wm->dirty_pipes & drm_crtc_mask(crtc))
- skl_write_cursor_wm(intel_crtc, p_wm, &wm->ddb);
-
if (plane_state && plane_state->base.visible) {
cntl = MCURSOR_GAMMA_ENABLE;
switch (plane_state->base.crtc_w) {
@@ -14425,8 +14402,17 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
intel_check_cpu_fifo_underruns(dev_priv);
intel_check_pch_fifo_underruns(dev_priv);
- if (!crtc->state->active)
- intel_update_watermarks(intel_crtc);
+ if (!crtc->state->active) {
+ /*
+ * Make sure we don't call initial_watermarks
+ * for ILK-style watermark updates.
+ */
+ if (dev_priv->display.atomic_update_watermarks)
+ dev_priv->display.initial_watermarks(intel_state,
+ to_intel_crtc_state(crtc->state));
+ else
+ intel_update_watermarks(intel_crtc);
+ }
}
}
@@ -14622,7 +14608,6 @@ static int intel_atomic_commit(struct drm_device *dev,
drm_atomic_helper_swap_state(state, true);
dev_priv->wm.distrust_bios_wm = false;
- dev_priv->wm.skl_results = intel_state->wm_results;
intel_shared_dpll_commit(state);
intel_atomic_track_fbs(state);
@@ -14946,7 +14931,7 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc,
intel_pipe_update_start(intel_crtc);
if (modeset)
- return;
+ goto out;
if (crtc->state->color_mgmt_changed || to_intel_crtc_state(crtc->state)->update_pipe) {
intel_color_set_csc(crtc->state);
@@ -14958,6 +14943,7 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc,
else if (INTEL_GEN(dev_priv) >= 9)
skl_detach_scalers(intel_crtc);
+out:
if (dev_priv->display.atomic_update_watermarks)
dev_priv->display.atomic_update_watermarks(old_intel_state,
intel_cstate);