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, Seems to help stability in Civilization 4 and PlaneShift. 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 <kenn...@whitecape.org> Cc: Eric Anholt <e...@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 | -- 1.7.7 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
