From: Samuel Pitoiset Date: Tue, 17 Apr 2018 14:05:16 +0000 (+0200) Subject: radv: add a workaround for fast clears with DCC and MSAA textures X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1aefb62f1e85de379d6045f234f32bf6cb924a09;p=mesa.git radv: add a workaround for fast clears with DCC and MSAA textures This should be fixed at some point in order to improve performance. Signed-off-by: Samuel Pitoiset Reviewed-by: Bas Nieuwenhuizen --- diff --git a/src/amd/vulkan/radv_meta_clear.c b/src/amd/vulkan/radv_meta_clear.c index 86e0bc17ed8..858e3368b65 100644 --- a/src/amd/vulkan/radv_meta_clear.c +++ b/src/amd/vulkan/radv_meta_clear.c @@ -1062,6 +1062,15 @@ emit_fast_color_clear(struct radv_cmd_buffer *cmd_buffer, if (iview->image->info.samples > 1) { /* DCC fast clear with MSAA should clear CMASK. */ + /* FIXME: This doesn't work for now. There is a + * hardware bug with fast clears and DCC for MSAA + * textures. AMDVLK has a workaround but it doesn't + * seem to work here. Note that we might emit useless + * CB flushes but that shouldn't matter. + */ + if (!can_avoid_fast_clear_elim) + goto fail; + assert(radv_image_has_cmask(iview->image)); flush_bits = radv_clear_cmask(cmd_buffer, iview->image,