diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-09-07 18:24:11 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-09-12 18:02:12 +0300 |
| commit | 7326659513fae805c13f71e8b956ef52abaa289a (patch) | |
| tree | c444dd235e39cb16d75452db9788732e0bf35f7a /drivers/gpu/drm/i915/intel_sprite.c | |
| parent | e21c2d33101871b85fe9fbb2fc6ef365b2773b67 (diff) | |
| download | linux-7326659513fae805c13f71e8b956ef52abaa289a.tar.bz2 | |
drm/i915: Move display w/a #1175
Move the display w/a #1175 to a better place. That place
being the new skl+ specific plane->check() hook. This leaves
the skl_check_plane_surface() stuff to deal with the gtt offset
and src coordinate stuff as originally envisioned.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180907152413.15761-12-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sprite.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sprite.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 5fd425ac1b3b..206e9d055272 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -1220,6 +1220,36 @@ static int skl_plane_check_fb(const struct intel_crtc_state *crtc_state, return 0; } +static int skl_plane_check_dst_coordinates(const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state) +{ + struct drm_i915_private *dev_priv = + to_i915(plane_state->base.plane->dev); + int crtc_x = plane_state->base.dst.x1; + int crtc_w = drm_rect_width(&plane_state->base.dst); + int pipe_src_w = crtc_state->pipe_src_w; + + /* + * Display WA #1175: cnl,glk + * Planes other than the cursor may cause FIFO underflow and display + * corruption if starting less than 4 pixels from the right edge of + * the screen. + * Besides the above WA fix the similar problem, where planes other + * than the cursor ending less than 4 pixels from the left edge of the + * screen may cause FIFO underflow and display corruption. + */ + if ((IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) && + (crtc_x + crtc_w < 4 || crtc_x > pipe_src_w - 4)) { + DRM_DEBUG_KMS("requested plane X %s position %d invalid (valid range %d-%d)\n", + crtc_x + crtc_w < 4 ? "end" : "start", + crtc_x + crtc_w < 4 ? crtc_x + crtc_w : crtc_x, + 4, pipe_src_w - 4); + return -ERANGE; + } + + return 0; +} + int skl_plane_check(struct intel_crtc_state *crtc_state, struct intel_plane_state *plane_state) { @@ -1254,11 +1284,15 @@ int skl_plane_check(struct intel_crtc_state *crtc_state, if (!plane_state->base.visible) return 0; + ret = skl_plane_check_dst_coordinates(crtc_state, plane_state); + if (ret) + return ret; + ret = intel_plane_check_src_coordinates(plane_state); if (ret) return ret; - ret = skl_check_plane_surface(crtc_state, plane_state); + ret = skl_check_plane_surface(plane_state); if (ret) return ret; |