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isl: disable CPB surface compression

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Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13739>
This commit is contained in:
Lionel Landwerlin 2022-01-27 10:26:58 +02:00 • committed by Marge Bot
parent dff08cbf8e
commit 3ab7f4471c
2 changed files with 11 additions and 0 deletions
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6
src/intel/isl/isl.c
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@ -2161,6 +2161,12 @@ isl_surf_supports_ccs(const struct isl_device *dev,
if (surf->tiling == ISL_TILING_LINEAR)
return false;
/* TODO: Disable for now, as we're not sure about the meaning of
* 3DSTATE_CPSIZE_CONTROL_BUFFER::CPCBCompressionEnable
*/
if (isl_surf_usage_is_cpb(surf->usage))
return false;
if (ISL_GFX_VER(dev) >= 12) {
if (isl_surf_usage_is_stencil(surf->usage)) {
/* HiZ and MCS aren't allowed with stencil */

5
src/intel/isl/isl_emit_cpb.c
View file

@ -96,6 +96,11 @@ isl_genX(emit_cpb_control_s)(const struct isl_device *dev, void *batch,
* Start LOD" to 15 to prevent the hardware from trying to use them.
*/
cpb.MipTailStartLOD = 15;
/* TODO:
*
* cpb.CPCBCompressionEnable is this CCS compression? Currently disabled
* in isl_surf_supports_ccs() for CPB buffers.
*/
} else {
cpb.SurfaceType = SURFTYPE_NULL;
cpb.TiledMode = TILE64;