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intel/fs: Handle required subgroup sizes specified in the SPIR-V

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Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12959>
This commit is contained in:
Jason Ekstrand 2020-09-14 13:44:42 -05:00 • committed by Marge Bot
parent 518693c3ec
commit 35ac184de0
1 changed files with 11 additions and 2 deletions
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13
src/intel/compiler/brw_fs.cpp
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@ -10141,12 +10141,21 @@ brw_compile_cs(const struct brw_compiler *compiler,
max_dispatch_width = 32;
}
unsigned required_dispatch_width = 0;
if ((int)key->base.subgroup_size_type >= (int)BRW_SUBGROUP_SIZE_REQUIRE_8) {
/* These enum values are expressly chosen to be equal to the subgroup
* size that they require.
*/
const unsigned required_dispatch_width =
(unsigned)key->base.subgroup_size_type;
required_dispatch_width = (unsigned)key->base.subgroup_size_type;
}
if (nir->info.cs.subgroup_size > 0) {
assert(required_dispatch_width == 0 ||
required_dispatch_width == nir->info.cs.subgroup_size);
required_dispatch_width = nir->info.cs.subgroup_size;
}
if (required_dispatch_width > 0) {
assert(required_dispatch_width == 8 ||
required_dispatch_width == 16 ||
required_dispatch_width == 32);