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drm/i915: Simplify up vlv watermark sanitation

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We can simplify the vlv watermark sanitation by reusing the
second half of vlv_compute_pipe_wm() to convert the sanitized
raw watermarks into the proper form to be used as the
optimal/intermediate watermarks.

Also to be consistent with normal watermark computation the sanitized
watermarks should be all 0 for any disabled plane. Previously we
zeroed out the watermarks only up to the level (ie. PM2/5/DVDFS)
that was enabled.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220622155452.32587-5-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
This commit is contained in:
Ville Syrjälä 2022-06-22 18:54:47 +03:00
parent 6340120014
commit 59f13af3b6
1 changed files with 6 additions and 9 deletions
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15
drivers/gpu/drm/i915/intel_pm.c
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@ -4031,30 +4031,27 @@ void vlv_wm_sanitize(struct drm_i915_private *dev_priv)
to_intel_crtc_state(crtc->base.state);
struct intel_plane_state *plane_state =
to_intel_plane_state(plane->base.state);
struct vlv_wm_state *wm_state = &crtc_state->wm.vlv.optimal;
const struct vlv_fifo_state *fifo_state =
&crtc_state->wm.vlv.fifo_state;
enum plane_id plane_id = plane->id;
int level;
int level, num_levels = intel_wm_num_levels(dev_priv);
if (plane_state->uapi.visible)
continue;
for (level = 0; level < wm_state->num_levels; level++) {
for (level = 0; level < num_levels; level++) {
struct g4x_pipe_wm *raw =
&crtc_state->wm.vlv.raw[level];
raw->plane[plane_id] = 0;
wm_state->wm[level].plane[plane_id] =
vlv_invert_wm_value(raw->plane[plane_id],
fifo_state->plane[plane_id]);
}
}
for_each_intel_crtc(&dev_priv->drm, crtc) {
struct intel_crtc_state *crtc_state =
to_intel_crtc_state(crtc->base.state);
int ret;
ret = _vlv_compute_pipe_wm(crtc_state);
drm_WARN_ON(&dev_priv->drm, ret);
crtc_state->wm.vlv.intermediate =
crtc_state->wm.vlv.optimal;