diff options
| author | Lionel Landwerlin <lionel.g.landwerlin@intel.com> | 2020-01-24 23:45:41 +0200 |
|---|---|---|
| committer | Marge Bot <eric+marge@anholt.net> | 2020-01-26 20:46:14 +0000 |
| commit | 8bd92a15cf28714f1752fbdbafcf78f575e16f13 (patch) | |
| tree | 3a0c130ca4b4ca9cde57f7fa632b48ec34ade4a4 /src/intel/isl | |
| parent | a3f6db2c4e927be7e7d40cbc39c8664030d2af59 (diff) | |
isl: add gen12 comment about CCS for linear tiling
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3551>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3551>
Diffstat (limited to 'src/intel/isl')
| -rw-r--r-- | src/intel/isl/isl.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c index d68ac324d07..f737f8b3b53 100644 --- a/src/intel/isl/isl.c +++ b/src/intel/isl/isl.c @@ -2020,6 +2020,16 @@ isl_surf_get_ccs_surf(const struct isl_device *dev, if (surf->tiling != ISL_TILING_Y0) return false; + /* BSpec 44930: + * + * Linear CCS is only allowed for Untyped Buffers but only via HDC + * Data-Port messages. + * + * We probably want to limit linear CCS to storage usage and check that + * the shaders actually use only untyped messages. + */ + assert(surf->tiling != ISL_TILING_LINEAR); + switch (isl_format_get_layout(surf->format)->bpb) { case 8: ccs_format = ISL_FORMAT_GEN12_CCS_8BPP_Y0; break; case 16: ccs_format = ISL_FORMAT_GEN12_CCS_16BPP_Y0; break; |