diff options
| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-03-27 02:59:45 +0200 |
|---|---|---|
| committer |   Rodrigo Vivi <rodrigo.vivi@intel.com> | 2021-04-12 08:00:28 -0400 |
| commit | bf52dc49ba0101f648b4c3ea26b812061406b0d4 (patch) | |
| tree | d6bed66ae3c178e3b7c23e1e16b4818edabd889b /drivers/gpu | |
| parent | drm/i915/dpcd_bl: Don't try vesa interface unless specified by VBT (diff) | |
| download | linux-dev-bf52dc49ba0101f648b4c3ea26b812061406b0d4.tar.xz linux-dev-bf52dc49ba0101f648b4c3ea26b812061406b0d4.zip | |
drm/i915: Don't zero out the Y plane's watermarks
Don't zero out the watermarks for the Y plane since we've already
computed them when computing the UV plane's watermarks (since the
UV plane always appears before ethe Y plane when iterating through
the planes).
This leads to allocating no DDB for the Y plane since .min_ddb_alloc
also gets zeroed. And that of course leads to underruns when scanning
out planar formats.
Cc: stable@vger.kernel.org
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Fixes: dbf71381d733 ("drm/i915: Nuke intel_atomic_crtc_state_for_each_plane_state() from skl+ wm code")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210327005945.4929-1-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
(cherry picked from commit f99b805fb9413ff007ca0b6add871737664117dd)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 97b57acc02e2..4b4d8d034782 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5471,12 +5471,12 @@ static int icl_build_plane_wm(struct intel_crtc_state *crtc_state, struct skl_plane_wm *wm = &crtc_state->wm.skl.raw.planes[plane_id]; int ret; - memset(wm, 0, sizeof(*wm)); - /* Watermarks calculated in master */ if (plane_state->planar_slave) return 0; + memset(wm, 0, sizeof(*wm)); + if (plane_state->planar_linked_plane) { const struct drm_framebuffer *fb = plane_state->hw.fb; enum plane_id y_plane_id = plane_state->planar_linked_plane->id; |