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r600g: fix userspace fences again 

reinstate b7617346dc after the
rework in 6067a2a67f.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
This commit is contained in:
Alex Deucher 2011-04-20 13:09:09 -04:00
parent 6067a2a67f
commit abee17057f
1 changed files with 3 additions and 0 deletions
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3
src/gallium/winsys/r600/drm/r600_hw_context.c
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@ -1310,6 +1310,9 @@ void r600_context_flush(struct r600_context *ctx)
else
r600_context_flush_dest_caches(ctx);
/* partial flush is needed to avoid lockups on some chips with user fences */
ctx->pm4[ctx->pm4_cdwords++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
ctx->pm4[ctx->pm4_cdwords++] = EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4);
/* emit fence */
ctx->pm4[ctx->pm4_cdwords++] = PKT3(PKT3_EVENT_WRITE_EOP, 4, 0);
ctx->pm4[ctx->pm4_cdwords++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_TS_EVENT) | EVENT_INDEX(5);