path: root/src/intel/isl/isl_format.c
diff options
authorSagar Ghuge <>2020-02-03 21:58:50 -0800
committerMarge Bot <>2020-02-13 18:44:50 +0000
commit3547e19bbd0d70fc391f5982ea38a026a5994b1c (patch)
tree80cdf67eea8e1a4f6f581ff73435cd03abb20151 /src/intel/isl/isl_format.c
parent207a93bbff1ef0c40d8f7da339f03dbb12961a7c (diff)
intel/isl: Switch to R8_UNORM format for compatiblity
Gen12 added CCS_E support for A8_UNORM. Intercept A8_UNORM format and switch to R8_UNORM, as both share the same aux map format encoding so they are compatible. Fixes Piglit's ext_framebuffer_multisample-formats all_samples, which was hitting an assert about A8_UNORM and R8_UINT not being CCS_E compatible formats. v2: Add gen check (Kenneth Graunke) v3: Intercept A8_UNORM and set format to R8_UNORM (Jason Ekstrand) v4: - Remove gen check and move block little bit down (Jason Ekstrand) Signed-off-by: Sagar Ghuge <> Reviewed-by: Kenneth Graunke <> Reviewed-by: Jason Ekstrand <> Tested-by: Marge Bot <> Part-of: <>
Diffstat (limited to 'src/intel/isl/isl_format.c')
1 files changed, 9 insertions, 0 deletions
diff --git a/src/intel/isl/isl_format.c b/src/intel/isl/isl_format.c
index 57964650dc6..5f92c3e1f36 100644
--- a/src/intel/isl/isl_format.c
+++ b/src/intel/isl/isl_format.c
@@ -928,6 +928,15 @@ isl_formats_are_ccs_e_compatible(const struct gen_device_info *devinfo,
!isl_format_supports_ccs_e(devinfo, format2))
return false;
+ /* Gen12 added CCS_E support for A8_UNORM, A8_UNORM and R8_UNORM share the
+ * same aux map format encoding so they are definitely compatible.
+ */
+ if (format1 == ISL_FORMAT_A8_UNORM)
+ format1 = ISL_FORMAT_R8_UNORM;
+ if (format2 == ISL_FORMAT_A8_UNORM)
+ format2 = ISL_FORMAT_R8_UNORM;
const struct isl_format_layout *fmtl1 = isl_format_get_layout(format1);
const struct isl_format_layout *fmtl2 = isl_format_get_layout(format2);