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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-14 16:54:12 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-14 16:54:12 -0800 |
commit | e37e0ee0190034a059c9faea8adfb4982fb24ddd (patch) | |
tree | ba6d6da8ae099eb734f4d8d33bf648fe0dfa39e7 /arch/xtensa/kernel | |
parent | 23c258763ba992f6a95a4b8980ffa7c1890bc8d8 (diff) | |
parent | c9eb6172c328dde7e14812f94f8da87b691e41b5 (diff) | |
download | linux-e37e0ee0190034a059c9faea8adfb4982fb24ddd.tar.bz2 |
Merge tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- turn dma_cache_sync into a dma_map_ops instance and remove
implementation that purely are dead because the architecture doesn't
support noncoherent allocations
- add a flag for busses that need DMA configuration (Robin Murphy)
* tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: turn dma_cache_sync into a dma_map_ops method
sh: make dma_cache_sync a no-op
xtensa: make dma_cache_sync a no-op
unicore32: make dma_cache_sync a no-op
powerpc: make dma_cache_sync a no-op
mn10300: make dma_cache_sync a no-op
microblaze: make dma_cache_sync a no-op
ia64: make dma_cache_sync a no-op
frv: make dma_cache_sync a no-op
x86: make dma_cache_sync a no-op
floppy: consolidate the dummy fd_cacheflush definition
drivers: flag buses which demand DMA configuration
Diffstat (limited to 'arch/xtensa/kernel')
-rw-r--r-- | arch/xtensa/kernel/pci-dma.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c index cec86a1c2acc..623720a11143 100644 --- a/arch/xtensa/kernel/pci-dma.c +++ b/arch/xtensa/kernel/pci-dma.c @@ -26,29 +26,6 @@ #include <asm/cacheflush.h> #include <asm/io.h> -void dma_cache_sync(struct device *dev, void *vaddr, size_t size, - enum dma_data_direction dir) -{ - switch (dir) { - case DMA_BIDIRECTIONAL: - __flush_invalidate_dcache_range((unsigned long)vaddr, size); - break; - - case DMA_FROM_DEVICE: - __invalidate_dcache_range((unsigned long)vaddr, size); - break; - - case DMA_TO_DEVICE: - __flush_dcache_range((unsigned long)vaddr, size); - break; - - case DMA_NONE: - BUG(); - break; - } -} -EXPORT_SYMBOL(dma_cache_sync); - static void do_cache_op(dma_addr_t dma_handle, size_t size, void (*fn)(unsigned long, unsigned long)) { |