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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-05-26 19:36:00 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-05-27 17:12:10 +0200 |
| commit | 0b86952d15ceae275f685f9bb571fea30904147f (patch) | |
| tree | 1495fce6e1c6345dc5dadf988cd422934b521326 /drivers/gpu/drm/i915/display/skl_universal_plane.c | |
| parent | drm/i915/adl_p: Disable FIFO underrun recovery (diff) | |
| download | linux-0b86952d15ceae275f685f9bb571fea30904147f.tar.xz linux-0b86952d15ceae275f685f9bb571fea30904147f.zip | |
drm/i915/adl_p: Implement Wa_22012358565
Implement Wa_22012358565 to avoid underrun with 32bpp cursor
in some high bandwidth scenarios. The implementation calls for
overriding the arbitration slots for the planes.
v2: Fix adlp_plane_ctl_arb_slots() return type
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210526173600.27708-2-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/skl_universal_plane.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/skl_universal_plane.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c index 59e032f3687a..92a4fd508e92 100644 --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c @@ -850,6 +850,29 @@ static u32 cnl_plane_ctl_flip(unsigned int reflect) return 0; } +static u32 adlp_plane_ctl_arb_slots(const struct intel_plane_state *plane_state) +{ + const struct drm_framebuffer *fb = plane_state->hw.fb; + + if (intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier)) { + switch (fb->format->cpp[0]) { + case 2: + return PLANE_CTL_ARB_SLOTS(1); + default: + return PLANE_CTL_ARB_SLOTS(0); + } + } else { + switch (fb->format->cpp[0]) { + case 8: + return PLANE_CTL_ARB_SLOTS(3); + case 4: + return PLANE_CTL_ARB_SLOTS(1); + default: + return PLANE_CTL_ARB_SLOTS(0); + } + } +} + static u32 skl_plane_ctl_crtc(const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); @@ -903,6 +926,10 @@ static u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state, else if (key->flags & I915_SET_COLORKEY_SOURCE) plane_ctl |= PLANE_CTL_KEY_ENABLE_SOURCE; + /* Wa_22012358565:adlp */ + if (DISPLAY_VER(dev_priv) == 13) + plane_ctl |= adlp_plane_ctl_arb_slots(plane_state); + return plane_ctl; } |