diff options
| -rw-r--r-- | src/intel/vulkan/anv_private.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h index d4e237025d0..d7134101c20 100644 --- a/src/intel/vulkan/anv_private.h +++ b/src/intel/vulkan/anv_private.h @@ -3684,6 +3684,16 @@ anv_can_sample_with_hiz(const struct gen_device_info * const devinfo, if (!(image->aspects & VK_IMAGE_ASPECT_DEPTH_BIT)) return false; + /* For Gen8-11, there are some restrictions around sampling from HiZ. + * The Skylake PRM docs for RENDER_SURFACE_STATE::AuxiliarySurfaceMode + * say: + * + * "If this field is set to AUX_HIZ, Number of Multisamples must + * be MULTISAMPLECOUNT_1, and Surface Type cannot be SURFTYPE_3D." + */ + if (image->type == VK_IMAGE_TYPE_3D) + return false; + /* Allow this feature on BDW even though it is disabled in the BDW devinfo * struct. There's documentation which suggests that this feature actually * reduces performance on BDW, but it has only been observed to help so |