Reviewed-by: Lyude <[email protected]>
On Thu, 2016-08-04 at 14:08 -0700, Matt Roper wrote: > The bspec was updated a couple weeks ago to add an extra block per > line > to plane watermark calculations for linear pixel formats. > > Bspec update 115327 description: > "Gen9+ - Updated the plane blocks per line calculation for linear > cases. Adds +1 for all linear cases to handle the non-block aligned > stride cases." > > Cc: Lyude <[email protected]> > Signed-off-by: Matt Roper <[email protected]> > --- > drivers/gpu/drm/i915/intel_pm.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_pm.c > b/drivers/gpu/drm/i915/intel_pm.c > index 4317cdf..6bd352a 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -3352,6 +3352,8 @@ static uint32_t skl_wm_method2(uint32_t > pixel_rate, uint32_t pipe_htotal, > plane_bytes_per_line *= 4; > plane_blocks_per_line = > DIV_ROUND_UP(plane_bytes_per_line, 512); > plane_blocks_per_line /= 4; > + } else if (tiling == DRM_FORMAT_MOD_NONE) { > + plane_blocks_per_line = > DIV_ROUND_UP(plane_bytes_per_line, 512) + 1; > } else { > plane_blocks_per_line = > DIV_ROUND_UP(plane_bytes_per_line, 512); > } -- Cheers, Lyude _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
