diff options
| author | Zhenyu Wang <zhenyuw@linux.intel.com> | 2010-09-17 15:08:09 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2010-09-28 15:58:21 +0800 |
| commit | 18c3b754f974751550dc9505d50535365beac8f3 (patch) | |
| tree | 549c68473bf6716ecb4cd5cec80cbf687d4b97b9 /src/mesa/drivers/dri/intel/intel_batchbuffer.c | |
| parent | c8033f1b1ea118f3f47b7f3de557b7a8dcf11082 (diff) | |
i965: sandybridge pipe control workaround before write cache flush
Must issue a pipe control with any non-zero post sync op before
write cache flush = 1 pipe control.
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_batchbuffer.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_batchbuffer.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_batchbuffer.c b/src/mesa/drivers/dri/intel/intel_batchbuffer.c index ff741fc39a..9b39823917 100644 --- a/src/mesa/drivers/dri/intel/intel_batchbuffer.c +++ b/src/mesa/drivers/dri/intel/intel_batchbuffer.c @@ -264,10 +264,18 @@ intel_batchbuffer_emit_mi_flush(struct intel_batchbuffer *batch) struct intel_context *intel = batch->intel; if (intel->gen >= 6) { - BEGIN_BATCH(4); + BEGIN_BATCH(8); + + /* XXX workaround: issue any post sync != 0 before write cache flush = 1 */ + OUT_BATCH(_3DSTATE_PIPE_CONTROL); + OUT_BATCH(PIPE_CONTROL_WRITE_IMMEDIATE); + OUT_BATCH(0); /* write address */ + OUT_BATCH(0); /* write data */ + OUT_BATCH(_3DSTATE_PIPE_CONTROL); OUT_BATCH(PIPE_CONTROL_INSTRUCTION_FLUSH | PIPE_CONTROL_WRITE_FLUSH | + PIPE_CONTROL_DEPTH_CACHE_FLUSH | PIPE_CONTROL_NO_WRITE); OUT_BATCH(0); /* write address */ OUT_BATCH(0); /* write data */ |