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authorChristoph Hellwig <hch@lst.de>2020-02-21 12:24:02 -0800
committerChristoph Hellwig <hch@lst.de>2020-03-16 10:48:02 +0100
commit4f8232bbf887123f78bcdca3dfd2b3dfa52a0112 (patch)
treeec534d3d2c43b28cf92423e28abc9fa750416384 /arch/nios2
parent286c21de32b904131f8cf6a36ce40b8b0c9c5da3 (diff)
downloadlinux-4f8232bbf887123f78bcdca3dfd2b3dfa52a0112.tar.bz2
dma-direct: remove the cached_kernel_address hook
dma-direct now finds the kernel address for coherent allocations based on the dma address, so the cached_kernel_address hooks is unused and can be removed entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/nios2')
-rw-r--r--arch/nios2/mm/dma-mapping.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index 0ed711e37902..f30f2749257c 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -75,13 +75,3 @@ void *uncached_kernel_address(void *ptr)
return (void *)ptr;
}
-
-void *cached_kernel_address(void *ptr)
-{
- unsigned long addr = (unsigned long)ptr;
-
- addr &= ~CONFIG_NIOS2_IO_REGION_BASE;
- addr |= CONFIG_NIOS2_KERNEL_REGION_BASE;
-
- return (void *)ptr;
-}