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isl: Don't use surface format R32_FLOAT for typed atomic integer operations

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From Skylake PRM Surface Formats section:

   "The surface format for the typed atomic integer operations must
    be R32_UINT or R32_SINT."

Fixes an error and a piglit GPU hang in simulation environment.
Piglit test: gl45-imageAtomicExchange-float.shader_test

Suggested-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.co
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "18.0 17.3" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 0cd37f9178)
This commit is contained in:
Anuj Phogat 2017-06-30 10:29:23 -07:00 • committed by Juan A. Suarez Romero
parent 64c3a46906
commit 58a0e9e1d6
1 changed files with 8 additions and 1 deletions
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9
src/intel/isl/isl_storage_image.c
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@ -88,9 +88,16 @@ isl_lower_storage_image_format(const struct gen_device_info *devinfo,
case ISL_FORMAT_R32G32B32A32_FLOAT:
case ISL_FORMAT_R32_UINT:
case ISL_FORMAT_R32_SINT:
case ISL_FORMAT_R32_FLOAT:
return format;
/* The Skylake PRM's "Surface Formats" section says:
*
* "The surface format for the typed atomic integer operations must
* be R32_UINT or R32_SINT."
*/
case ISL_FORMAT_R32_FLOAT:
return ISL_FORMAT_R32_UINT;
/* From HSW to BDW the only 64bpp format supported for typed access is
* RGBA_UINT16. IVB falls back to untyped.
*/