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iris: allow compression conditionally for images on gen12 

With this change, amount of resolves happening with deqp-gles31
(--deqp-case=*load_store*) drops ~50%.

v2: use iris_image_view_get_format to get the format,
    get devinfo from context instead of passing it (Nanley)

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4080>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4080>
This commit is contained in:
Tapani Pälli 2020-03-12 08:24:09 +02:00 committed by Marge Bot
parent d836f3fadf
commit fd1436440b
1 changed files with 18 additions and 0 deletions
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18
src/gallium/drivers/iris/iris_resolve.c
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@ -993,6 +993,24 @@ iris_image_view_aux_usage(struct iris_context *ice,
const struct pipe_image_view *pview,
const struct shader_info *info)
{
if (!info)
return ISL_AUX_USAGE_NONE;
struct iris_screen *screen = (void *) ice->ctx.screen;
const struct gen_device_info *devinfo = &screen->devinfo;
struct iris_resource *res = (void *) pview->resource;
enum isl_format view_format = iris_image_view_get_format(ice, pview);
enum isl_aux_usage aux_usage =
iris_resource_texture_aux_usage(ice, res, view_format);
bool uses_atomic_load_store =
ice->shaders.uncompiled[info->stage]->uses_atomic_load_store;
if ((devinfo->gen == 12 && aux_usage == ISL_AUX_USAGE_CCS_E) &&
!uses_atomic_load_store)
return ISL_AUX_USAGE_CCS_E;
return ISL_AUX_USAGE_NONE;
}