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authorChristoph Hellwig <hch@lst.de>2020-02-22 02:55:43 +0300
committerChristoph Hellwig <hch@lst.de>2020-03-16 12:48:09 +0300
commitfa7e2247c5729f990c7456fe09f3af99c8f2571b (patch)
tree65aa46af4ff51a93301caca46b509c34267bfe40 /arch/nios2/mm
parent3d0fc341c4bb66b2c41c0d1ec954a6d300e100b7 (diff)
downloadlinux-fa7e2247c5729f990c7456fe09f3af99c8f2571b.tar.xz
dma-direct: make uncached_kernel_address more general
Rename the symbol to arch_dma_set_uncached, and pass a size to it as well as allow an error return. That will allow reusing this hook for in-place pagetable remapping. As the in-place remap doesn't always require an explicit cache flush, also detangle ARCH_HAS_DMA_PREP_COHERENT from ARCH_HAS_DMA_SET_UNCACHED. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/nios2/mm')
-rw-r--r--arch/nios2/mm/dma-mapping.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index f30f2749257c..fd887d5f3f9a 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -67,7 +67,7 @@ void arch_dma_prep_coherent(struct page *page, size_t size)
flush_dcache_range(start, start + size);
}
-void *uncached_kernel_address(void *ptr)
+void *arch_dma_set_uncached(void *ptr, size_t size)
{
unsigned long addr = (unsigned long)ptr;