diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_urb.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_urb.c b/src/mesa/drivers/dri/i965/brw_urb.c index dfc1551aca6..b0419d8a420 100644 --- a/src/mesa/drivers/dri/i965/brw_urb.c +++ b/src/mesa/drivers/dri/i965/brw_urb.c @@ -248,5 +248,13 @@ void brw_upload_urb_fence(struct brw_context *brw) uf.bits1.sf_fence = brw->urb.cs_start; uf.bits1.cs_fence = brw->urb.size; + /* erratum: URB_FENCE must not cross a 64byte cacheline */ + if ((brw->intel.batch.used & 15) > 12) { + int pad = 16 - (brw->intel.batch.used & 15); + do + brw->intel.batch.map[brw->intel.batch.used++] = MI_NOOP; + while (--pad); + } + BRW_BATCH_STRUCT(brw, &uf); } |