diff options
Diffstat (limited to 'arch/openrisc/kernel/dma.c')
| -rw-r--r-- | arch/openrisc/kernel/dma.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c index b3edbb33b621..3a7b5baaa450 100644 --- a/arch/openrisc/kernel/dma.c +++ b/arch/openrisc/kernel/dma.c @@ -17,6 +17,7 @@ #include <linux/pagewalk.h> #include <asm/cpuinfo.h> +#include <asm/cacheflush.h> #include <asm/spr_defs.h> #include <asm/tlbflush.h> @@ -24,9 +25,6 @@ static int page_set_nocache(pte_t *pte, unsigned long addr, unsigned long next, struct mm_walk *walk) { - unsigned long cl; - struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()]; - pte_val(*pte) |= _PAGE_CI; /* @@ -36,8 +34,7 @@ page_set_nocache(pte_t *pte, unsigned long addr, flush_tlb_kernel_range(addr, addr + PAGE_SIZE); /* Flush page out of dcache */ - for (cl = __pa(addr); cl < __pa(next); cl += cpuinfo->dcache_block_size) - mtspr(SPR_DCBFR, cl); + local_dcache_range_flush(__pa(addr), __pa(next)); return 0; } @@ -98,21 +95,14 @@ void arch_dma_clear_uncached(void *cpu_addr, size_t size) void arch_sync_dma_for_device(phys_addr_t addr, size_t size, enum dma_data_direction dir) { - unsigned long cl; - struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()]; - switch (dir) { case DMA_TO_DEVICE: /* Flush the dcache for the requested range */ - for (cl = addr; cl < addr + size; - cl += cpuinfo->dcache_block_size) - mtspr(SPR_DCBFR, cl); + local_dcache_range_flush(addr, addr + size); break; case DMA_FROM_DEVICE: /* Invalidate the dcache for the requested range */ - for (cl = addr; cl < addr + size; - cl += cpuinfo->dcache_block_size) - mtspr(SPR_DCBIR, cl); + local_dcache_range_inv(addr, addr + size); break; default: /* |