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freedreno/a5xx: fix random faults on first sysmem draw

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Not sure what this event is, but blob writes it.. and it seems to solve
random write faults at mystery address that would sometimes happen on
first BYPASS draw.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2016-12-07 15:21:56 -05:00
parent 54537fa1dc
commit abcf8f5b58
1 changed files with 3 additions and 0 deletions
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src/gallium/drivers/freedreno/a5xx/fd5_gmem.c
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@ -485,6 +485,9 @@ fd5_emit_sysmem_prep(struct fd_batch *batch)
OUT_PKT7(ring, CP_SKIP_IB2_ENABLE_GLOBAL, 1);
OUT_RING(ring, 0x0);
OUT_PKT7(ring, CP_EVENT_WRITE, 1);
OUT_RING(ring, UNK_19);
OUT_PKT4(ring, REG_A5XX_PC_POWER_CNTL, 1);
OUT_RING(ring, 0x00000003); /* PC_POWER_CNTL */