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i965/gen9: Disable MCS for 1x color surfaces

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Fast color clears are disabled for gen9 (see the checks in
brw_meta_fast_clear), so there is no reason to allocate the MCS and
track its clear/resolve state.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
This commit is contained in:
Chad Versace 2015-10-08 11:53:08 -07:00
parent 4c4ba5a8c3
commit dcd59a9e32
1 changed files with 8 additions and 0 deletions
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8
src/mesa/drivers/dri/i965/intel_mipmap_tree.c
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@ -201,6 +201,14 @@ intel_miptree_supports_non_msrt_fast_clear(struct brw_context *brw,
if (brw->gen < 7)
return false;
if (brw->gen >= 9) {
/* FINISHME: Enable singlesample fast MCS clears on SKL after all GPU
* FINISHME: hangs are resolved.
*/
perf_debug("singlesample fast MCS clears disabled on gen9");
return false;
}
if (mt->disable_aux_buffers)
return false;