From dcd59a9e322edeea74187bcad65a8e56c0bfaaa2 Mon Sep 17 00:00:00 2001 From: Chad Versace Date: Thu, 8 Oct 2015 11:53:08 -0700 Subject: [PATCH] i965/gen9: Disable MCS for 1x color surfaces 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 --- src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c index a169c41790e..b6e35205727 100644 --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c @@ -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; -- 2.30.2