diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-06-15 13:08:42 +0200 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2018-06-24 09:26:04 -0700 |
| commit | d7e64bf9499b1c260f274d00199c4556196ec5e5 (patch) | |
| tree | 73e9cc0cd9956997b67ed030768b989ef1f4e9ac /arch/mips/include/asm/mach-loongson64 | |
| parent | d3bc81befcf2634c64f1b2a95311d54ccfa1e06c (diff) | |
MIPS: loongson: remove loongson-3 handling from dma-coherence.h
Loongson3 is dma coherent and uses swiotlb, so it will never used any
of these helpers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Patchwork: https://patchwork.linux-mips.org/patch/19541/
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-mips@linux-mips.org
Diffstat (limited to 'arch/mips/include/asm/mach-loongson64')
| -rw-r--r-- | arch/mips/include/asm/mach-loongson64/dma-coherence.h | 16 |
1 files changed, 1 insertions, 15 deletions
diff --git a/arch/mips/include/asm/mach-loongson64/dma-coherence.h b/arch/mips/include/asm/mach-loongson64/dma-coherence.h index b8825a7d1279..651dd2eb3ee5 100644 --- a/arch/mips/include/asm/mach-loongson64/dma-coherence.h +++ b/arch/mips/include/asm/mach-loongson64/dma-coherence.h @@ -20,29 +20,19 @@ struct device; static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size) { -#ifdef CONFIG_CPU_LOONGSON3 - return __phys_to_dma(dev, virt_to_phys(addr)); -#else return virt_to_phys(addr) | 0x80000000; -#endif } static inline dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page) { -#ifdef CONFIG_CPU_LOONGSON3 - return __phys_to_dma(dev, page_to_phys(page)); -#else return page_to_phys(page) | 0x80000000; -#endif } static inline unsigned long plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr) { -#if defined(CONFIG_CPU_LOONGSON3) && defined(CONFIG_64BIT) - return __dma_to_phys(dev, dma_addr); -#elif defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT) +#if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT) return (dma_addr > 0x8fffffff) ? dma_addr : (dma_addr & 0x0fffffff); #else return dma_addr & 0x7fffffff; @@ -69,11 +59,7 @@ static inline int plat_dma_supported(struct device *dev, u64 mask) static inline int plat_device_is_coherent(struct device *dev) { -#ifdef CONFIG_DMA_NONCOHERENT return 0; -#else - return 1; -#endif /* CONFIG_DMA_NONCOHERENT */ } static inline void plat_post_dma_flush(struct device *dev) |