From: Nicolai Hähnle <nicolai.haehnle@amd.com>
Date: Fri, 21 Sep 2018 16:05:19 +0000 (+0200)
Subject: radeonsi: don't set RAW_WAIT for CP DMA clears
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0d58dcc3cff2f491f7c57c5c5c9d4b28e7f842b2;p=mesa.git

radeonsi: don't set RAW_WAIT for CP DMA clears

There is never a read-after-write hazard because the command doesn't read.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
---

diff --git a/src/gallium/drivers/radeonsi/si_cp_dma.c b/src/gallium/drivers/radeonsi/si_cp_dma.c
index 33220d9f0fa..80673f3f5f2 100644
--- a/src/gallium/drivers/radeonsi/si_cp_dma.c
+++ b/src/gallium/drivers/radeonsi/si_cp_dma.c
@@ -189,7 +189,8 @@ static void si_cp_dma_prepare(struct si_context *sctx, struct pipe_resource *dst
 	if (!(user_flags & SI_CPDMA_SKIP_GFX_SYNC) && sctx->flags)
 		si_emit_cache_flush(sctx);
 
-	if (!(user_flags & SI_CPDMA_SKIP_SYNC_BEFORE) && *is_first)
+	if (!(user_flags & SI_CPDMA_SKIP_SYNC_BEFORE) && *is_first &&
+	    !(*packet_flags & CP_DMA_CLEAR))
 		*packet_flags |= CP_DMA_RAW_WAIT;
 
 	*is_first = false;