search for: dma_sync_virt

Displaying 2 results from an estimated 2 matches for "dma_sync_virt".

2020 Aug 19
0
[PATCH 08/28] MIPS: make dma_sync_*_for_cpu a little less overzealous
...rent.c b/arch/mips/mm/dma-noncoherent.c index 563c2c0d0c8193..97a14adbafc99c 100644 --- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -55,22 +55,34 @@ void *arch_dma_set_uncached(void *addr, size_t size) return (void *)(__pa(addr) + UNCAC_BASE); } -static inline void dma_sync_virt(void *addr, size_t size, +static inline void dma_sync_virt_for_device(void *addr, size_t size, enum dma_data_direction dir) { switch (dir) { case DMA_TO_DEVICE: dma_cache_wback((unsigned long)addr, size); break; - case DMA_FROM_DEVICE: dma_cache_inv((unsigned long)addr, size);...
2020 Aug 19
39
a saner API for allocating DMA addressable pages
Hi all, this series replaced the DMA_ATTR_NON_CONSISTENT flag to dma_alloc_attrs with a separate new dma_alloc_pages API, which is available on all platforms. In addition to cleaning up the convoluted code path, this ensures that other drivers that have asked for better support for non-coherent DMA to pages with incurring bounce buffering over can finally be properly supported. I'm still a