diff options
| -rw-r--r-- | arch/sparc/Kconfig | 3 | ||||
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 54 |
2 files changed, 2 insertions, 55 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index b120ed947f50..66fc08646be5 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -53,8 +53,9 @@ config SPARC32 def_bool !64BIT select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_CPU - select GENERIC_ATOMIC64 select CLZ_TAB + select DMA_DIRECT_REMAP + select GENERIC_ATOMIC64 select HAVE_UID16 select OLD_SIGACTION select ZONE_DMA diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 3eb748e86222..57a72c46eddb 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -300,60 +300,6 @@ arch_initcall(sparc_register_ioport); #endif /* CONFIG_SBUS */ - -/* Allocate and map kernel buffer using consistent mode DMA for a device. - * hwdev should be valid struct pci_dev pointer for PCI devices. - */ -void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t gfp, unsigned long attrs) -{ - unsigned long addr; - void *va; - - if (!size || size > 256 * 1024) /* __get_free_pages() limit */ - return NULL; - - size = PAGE_ALIGN(size); - va = (void *) __get_free_pages(gfp | __GFP_ZERO, get_order(size)); - if (!va) { - printk("%s: no %zd pages\n", __func__, size >> PAGE_SHIFT); - return NULL; - } - - addr = sparc_dma_alloc_resource(dev, size); - if (!addr) - goto err_nomem; - - srmmu_mapiorange(0, virt_to_phys(va), addr, size); - - *dma_handle = virt_to_phys(va); - return (void *)addr; - -err_nomem: - free_pages((unsigned long)va, get_order(size)); - return NULL; -} - -/* Free and unmap a consistent DMA buffer. - * cpu_addr is what was returned arch_dma_alloc, size must be the same as what - * was passed into arch_dma_alloc, and likewise dma_addr must be the same as - * what *dma_ndler was set to. - * - * References to the memory and mappings associated with cpu_addr/dma_addr - * past this call are illegal. - */ -void arch_dma_free(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t dma_addr, unsigned long attrs) -{ - size = PAGE_ALIGN(size); - - if (!sparc_dma_free_resource(cpu_addr, size)) - return; - - srmmu_unmapiorange((unsigned long)cpu_addr, size); - free_pages((unsigned long)phys_to_virt(dma_addr), get_order(size)); -} - /* * IIep is write-through, not flushing on cpu to device transfer. * |