From: Dave Airlie <airlied@redhat.com>
Date: Thu, 5 May 2011 22:40:08 +0000 (+1000)
Subject: r600g: add rv670 flushing workaround.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5066f7cd0e010db46b42f8f08a33c10cb34f8726;p=mesa.git

r600g: add rv670 flushing workaround.

Hopefully we can find out the proper fix for this, but for now
this makes the fbo mipmap tests pass on my rv670 (x2 card).

Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/gallium/winsys/r600/drm/r600_hw_context.c b/src/gallium/winsys/r600/drm/r600_hw_context.c
index b8a8108fb12..ff99143485b 100644
--- a/src/gallium/winsys/r600/drm/r600_hw_context.c
+++ b/src/gallium/winsys/r600/drm/r600_hw_context.c
@@ -812,6 +812,10 @@ void r600_context_bo_flush(struct r600_context *ctx, unsigned flush_flags,
 		use_event_flush = TRUE;
 
 	if (use_event_flush && (ctx->flags & R600_CONTEXT_CHECK_EVENT_FLUSH)) {
+		/* the rv670 seems to fail fbo-generatemipmap unless we flush the CB1 dest base ena */
+		if (ctx->radeon->family == CHIP_RV670)
+			r600_context_flush_all(ctx, S_0085F0_CB1_DEST_BASE_ENA(1));
+
 		ctx->pm4[ctx->pm4_cdwords++] = PKT3(PKT3_EVENT_WRITE, 0, ctx->predicate_drawing);
 		ctx->pm4[ctx->pm4_cdwords++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0);
 		ctx->flags &= ~R600_CONTEXT_CHECK_EVENT_FLUSH;