From: Mark Yao <mark.yao@rock-chips.com>
Date: Fri, 28 Apr 2017 01:57:54 +0000 (+0800)
Subject: video/rockchip: rga2: fix error page on cache flush
X-Git-Tag: release-20171130_firefly~4^2~703
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c06e1d104b701a1bc062604f529e0858cb56b569;p=firefly-linux-kernel-4.4.55.git

video/rockchip: rga2: fix error page on cache flush

Change-Id: Ic23e0f6c25f68c28a87f4e4ef459bda56d4990ba
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---

diff --git a/drivers/video/rockchip/rga2/rga2_mmu_info.c b/drivers/video/rockchip/rga2/rga2_mmu_info.c
index 6ffb3b1acda0..d77a95745194 100644
--- a/drivers/video/rockchip/rga2/rga2_mmu_info.c
+++ b/drivers/video/rockchip/rga2/rga2_mmu_info.c
@@ -366,8 +366,7 @@ static int rga2_MapUserMemory(struct page **pages, uint32_t *pageTable,
 			   << PAGE_SHIFT)) & ~PAGE_MASK));
 		pte_unmap_unlock(pte, ptl);
 		pageTable[i] = (uint32_t)Address;
-
-		rga_dma_flush_page(pages[i]);
+		rga_dma_flush_page(pfn_to_page(pfn));
 	}
 	up_read(&current->mm->mmap_sem);
 	return status;