Commit d7001198 authored by Jan Nikitenko's avatar Jan Nikitenko Committed by Ralf Baechle

MIPS: Fix oops in dma_unmap_page on not coherent mips platforms

dma_cache_wback_inv() expects virtual address, but physical was provided
due to translation via plat_dma_addr_to_phys().
If replaced with dma_addr_to_virt(), page fault oops from dma_unmap_page()
is gone on au1550 platform.
Signed-off-by: default avatarJan Nikitenko <jan.nikitenko@gmail.com>
Acked-by: default avatarAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent d56ffd38
...@@ -225,7 +225,7 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, ...@@ -225,7 +225,7 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
if (!plat_device_is_coherent(dev) && direction != DMA_TO_DEVICE) { if (!plat_device_is_coherent(dev) && direction != DMA_TO_DEVICE) {
unsigned long addr; unsigned long addr;
addr = plat_dma_addr_to_phys(dma_address); addr = dma_addr_to_virt(dma_address);
dma_cache_wback_inv(addr, size); dma_cache_wback_inv(addr, size);
} }
......
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