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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-05-26 20:36:00 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-05-27 18:12:10 +0300 |
| commit | 0b86952d15ceae275f685f9bb571fea30904147f (patch) | |
| tree | 1495fce6e1c6345dc5dadf988cd422934b521326 /drivers/gpu/drm/i915/display/intel_display.c | |
| parent | d091fc53eb77f8a2a205b41806cfee5674c6a6ae (diff) | |
| download | linux-0b86952d15ceae275f685f9bb571fea30904147f.tar.xz | |
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/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 55c6a34e11e0..a363664b233e 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -975,6 +975,11 @@ void intel_enable_pipe(const struct intel_crtc_state *new_crtc_state) /* FIXME: assert CPU port conditions for SNB+ */ } + /* Wa_22012358565:adlp */ + if (DISPLAY_VER(dev_priv) == 13) + intel_de_rmw(dev_priv, PIPE_ARB_CTL(pipe), + 0, PIPE_ARB_USE_PROG_SLOTS); + reg = PIPECONF(cpu_transcoder); val = intel_de_read(dev_priv, reg); if (val & PIPECONF_ENABLE) { |