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video/rockchip: rga2: Fix up dst vir address not 4k align will cause crash

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If dst buf not 4k align vir address, mmu page may calculate error.
This situation will cause rga hardware not respond, cannot return irq_handle.

Change-Id: I29a104984415b6736713073684c2551252c975b9
Signed-off-by: Putin Lee <putin.li@rock-chips.com>
This commit is contained in:
Putin Lee
2018-03-29 21:37:23 +08:00
committed by Tao Huang
parent b38255c756
commit bbc53fb321
1 changed files with 1 additions and 0 deletions
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1
drivers/video/rockchip/rga2/rga2_mmu_info.c
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@@ -468,6 +468,7 @@ static int rga2_mmu_info_BitBlt_mode(struct rga2_reg *reg, struct rga2_req *req)
req->dst.vir_w,
req->dst.vir_h,
&DstStart);
DstPageCount = (DstPageCount + 3) & (~3);
if (DstPageCount == 0)
return -EINVAL;
}