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iris: Resolve stencil resource prior to copy or used by CPU

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v2: Decide aux usage in get_copy_region_aux_settings (Nanley Chery)

v3: Use isl_surf_usage_is_stencil function (Nanley Chery)

Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This commit is contained in:
Sagar Ghuge
2019-09-17 13:20:16 -07:00
parent 5d331251cf
commit b22b349443
1 changed files with 19 additions and 9 deletions
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28
src/gallium/drivers/iris/iris_blit.c
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@@ -566,19 +566,29 @@ static void
get_copy_region_aux_settings(const struct gen_device_info *devinfo,
struct iris_resource *res,
enum isl_aux_usage *out_aux_usage,
bool *out_clear_supported)
bool *out_clear_supported,
bool is_render_target)
{
switch (res->aux.usage) {
case ISL_AUX_USAGE_MCS:
case ISL_AUX_USAGE_MCS_CCS:
case ISL_AUX_USAGE_CCS_E:
*out_aux_usage = res->aux.usage;
/* Prior to Gen9, fast-clear only supported 0/1 clear colors. Since
* we're going to re-interpret the format as an integer format possibly
* with a different number of components, we can't handle clear colors
* until Gen9.
/* A stencil resolve operation must be performed prior to doing resource
* copies or used by CPU.
* (see HSD 1209978162)
*/
*out_clear_supported = devinfo->gen >= 9;
if (is_render_target && isl_surf_usage_is_stencil(res->surf.usage)) {
*out_aux_usage = ISL_AUX_USAGE_NONE;
*out_clear_supported = false;
} else {
*out_aux_usage = res->aux.usage;
/* Prior to Gen9, fast-clear only supported 0/1 clear colors. Since
* we're going to re-interpret the format as an integer format possibly
* with a different number of components, we can't handle clear colors
* until Gen9.
*/
*out_clear_supported = devinfo->gen >= 9;
}
break;
default:
*out_aux_usage = ISL_AUX_USAGE_NONE;
@@ -615,9 +625,9 @@ iris_copy_region(struct blorp_context *blorp,
enum isl_aux_usage src_aux_usage, dst_aux_usage;
bool src_clear_supported, dst_clear_supported;
get_copy_region_aux_settings(devinfo, src_res, &src_aux_usage,
&src_clear_supported);
&src_clear_supported, false);
get_copy_region_aux_settings(devinfo, dst_res, &dst_aux_usage,
&dst_clear_supported);
&dst_clear_supported, true);
if (iris_batch_references(batch, src_res->bo))
tex_cache_flush_hack(batch, ISL_FORMAT_UNSUPPORTED, src_res->surf.format);