Mesa (master): i965: Apply post-sync non-zero workaround to homebrew workaround.
Kenneth Graunke
kwg at kemper.freedesktop.org
Mon Oct 24 20:35:36 UTC 2011
Module: Mesa
Branch: master
Commit: 3cc0a7be23ab603ed40d602595f673a44e079885
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3cc0a7be23ab603ed40d602595f673a44e079885
Author: Kenneth Graunke <kenneth at whitecape.org>
Date: Fri Oct 21 01:03:37 2011 -0700
i965: Apply post-sync non-zero workaround to homebrew workaround.
In commit 3e5d3626, Eric added a homebrew workaround to fix GPU hangs in
the Mesa "engine" demo and oglc's api-texcoord test.
Unfortunately, his PIPE_CONTROL contains a Depth Stall, which
necessitates the post-sync non-zero workaround,
Fixes GPU hangs in Civilization 4, PlaneShift, and 3DMMES.
Hopefully Heroes of Newerth as well, though I haven't tested that.
NOTE: This is candidate for the 7.11 branch.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40324
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41096
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-and-tested-by: Eric Anholt <eric at anholt.net>
---
src/mesa/drivers/dri/i965/gen6_vs_state.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/gen6_vs_state.c b/src/mesa/drivers/dri/i965/gen6_vs_state.c
index 1c57a3b..f2c2e2b 100644
--- a/src/mesa/drivers/dri/i965/gen6_vs_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_vs_state.c
@@ -198,6 +198,8 @@ upload_vs_state(struct brw_context *brw)
* bug reports that led to this workaround, and may be more than
* what is strictly required to avoid the issue.
*/
+ intel_emit_post_sync_nonzero_flush(intel);
+
BEGIN_BATCH(4);
OUT_BATCH(_3DSTATE_PIPE_CONTROL);
OUT_BATCH(PIPE_CONTROL_DEPTH_STALL |
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