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freedreno/a3xx: fix VFD_INDEX_MAX overflow

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max_index may be 0xffffffff.  The hardware does not need 1 + max_index
(although it does not hurt unless max_index wraps around to zero).

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2013-09-11 10:06:29 -04:00
parent c756a3ef70
commit d7be322410
1 changed files with 1 additions and 1 deletions
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src/gallium/drivers/freedreno/a3xx/fd3_draw.c
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@ -84,7 +84,7 @@ fd3_draw(struct fd_context *ctx, const struct pipe_draw_info *info)
OUT_PKT0(ring, REG_A3XX_VFD_INDEX_MIN, 4);
OUT_RING(ring, info->min_index); /* VFD_INDEX_MIN */
OUT_RING(ring, info->max_index + 1); /* VFD_INDEX_MAX */
OUT_RING(ring, info->max_index); /* VFD_INDEX_MAX */
OUT_RING(ring, info->start_instance); /* VFD_INSTANCEID_OFFSET */
OUT_RING(ring, info->start); /* VFD_INDEX_OFFSET */