diff options
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/kernel/pci-dma.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c index 72b6222daa0b..6a685545d5c9 100644 --- a/arch/xtensa/kernel/pci-dma.c +++ b/arch/xtensa/kernel/pci-dma.c @@ -88,18 +88,12 @@ void arch_dma_prep_coherent(struct page *page, size_t size) /* * Memory caching is platform-dependent in noMMU xtensa configurations. - * The following two functions should be implemented in platform code - * in order to enable coherent DMA memory operations when CONFIG_MMU is not - * enabled. + * This function should be implemented in platform code in order to enable + * coherent DMA memory operations when CONFIG_MMU is not enabled. */ #ifdef CONFIG_MMU void *uncached_kernel_address(void *p) { return p + XCHAL_KSEG_BYPASS_VADDR - XCHAL_KSEG_CACHED_VADDR; } - -void *cached_kernel_address(void *p) -{ - return p + XCHAL_KSEG_CACHED_VADDR - XCHAL_KSEG_BYPASS_VADDR; -} #endif /* CONFIG_MMU */ |