The specification only requires DPT FB strides to be POT aligned, but
there seems to be also a minimum of 8 stride tile requirement. Scanning
out FBs with < 8 stride tiles will result in pipe faults (even though
the stride is POT aligned).
Signed-off-by: Imre Deak <imre.deak@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210506161930.309688-10-imre.deak@intel.com
unsigned int pitch_tiles)
{
if (intel_fb_needs_pot_stride_remap(fb))
- return roundup_pow_of_two(pitch_tiles);
+ /*
+ * ADL_P, the only platform needing a POT stride has a minimum
+ * of 8 stride tiles.
+ */
+ return roundup_pow_of_two(max(pitch_tiles, 8u));
else
return pitch_tiles;
}