intel/isl: Support lossless compression with multisamples

GEN12 adds the ability to losslessly compress each sample plane in a
multisampled buffer that uses MCS compression.

v2: Remove unnecessary assertion (Nanley Chery)

Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>

diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c
index b22cd009e83d85e202a3834d8f2a698a2a144a06..7ca2dc7809bb77f33eee3717748565b1aaeae179 100644 (file)
--- a/src/intel/isl/isl.c
+++ b/src/intel/isl/isl.c
@@ -1848,13 +1848,9 @@ isl_surf_get_ccs_surf(const struct isl_device *dev,
    if (aux_surf->usage & ISL_SURF_USAGE_CCS_BIT)
       return false;
 
-   /* Only multisampled depth buffers with HiZ can have CCS. */
-   if (surf->samples > 1 && !(aux_surf->usage & ISL_SURF_USAGE_HIZ_BIT))
+   if (ISL_DEV_GEN(dev) < 12 && surf->samples > 1)
       return false;
 
-   assert(surf->msaa_layout == ISL_MSAA_LAYOUT_NONE ||
-          surf->msaa_layout == ISL_MSAA_LAYOUT_INTERLEAVED);
-
    /* CCS support does not exist prior to Gen7 */
    if (ISL_DEV_GEN(dev) <= 6)
       return false;