serial: sh-sci: Kill off all of the SCI/SCIF special casing.

[pandora-kernel.git] / arch / arm / mm / consistent.c

diff --git a/arch/arm/mm/consistent.c b/arch/arm/mm/consistent.c
index 6a9c362..db7b3e3 100644 (file)
--- a/arch/arm/mm/consistent.c
+++ b/arch/arm/mm/consistent.c
@@ -205,9 +205,10 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
         * kernel direct-mapped region for device DMA.
         */
        {
-               unsigned long kaddr = (unsigned long)page_address(page);
-               memset(page_address(page), 0, size);
-               dmac_flush_range(kaddr, kaddr + size);
+               void *ptr = page_address(page);
+               memset(ptr, 0, size);
+               dmac_flush_range(ptr, ptr + size);
+               outer_flush_range(__pa(ptr), __pa(ptr) + size);
        }
 
        /*
@@ -273,6 +274,11 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
 void *
 dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
 {
+       void *memory;
+
+       if (dma_alloc_from_coherent(dev, size, handle, &memory))
+               return memory;
+
        if (arch_is_coherent()) {
                void *virt;
 
@@ -321,7 +327,6 @@ static int dma_mmap(struct device *dev, struct vm_area_struct *vma,
 
                if (off < kern_size &&
                    user_size <= (kern_size - off)) {
-                       vma->vm_flags |= VM_RESERVED;
                        ret = remap_pfn_range(vma, vma->vm_start,
                                              page_to_pfn(c->vm_pages) + off,
                                              user_size << PAGE_SHIFT,
@@ -362,6 +367,9 @@ void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr
 
        WARN_ON(irqs_disabled());
 
+       if (dma_release_from_coherent(dev, get_order(size), cpu_addr))
+               return;
+
        if (arch_is_coherent()) {
                kfree(cpu_addr);
                return;
@@ -480,23 +488,27 @@ core_initcall(consistent_init);
  * platforms with CONFIG_DMABOUNCE.
  * Use the driver DMA support - see dma-mapping.h (dma_sync_*)
  */
-void consistent_sync(void *vaddr, size_t size, int direction)
+void dma_cache_maint(const void *start, size_t size, int direction)
 {
-       unsigned long start = (unsigned long)vaddr;
-       unsigned long end   = start + size;
+       const void *end = start + size;
+
+       BUG_ON(!virt_addr_valid(start) || !virt_addr_valid(end - 1));
 
        switch (direction) {
        case DMA_FROM_DEVICE:           /* invalidate only */
                dmac_inv_range(start, end);
+               outer_inv_range(__pa(start), __pa(end));
                break;
        case DMA_TO_DEVICE:             /* writeback only */
                dmac_clean_range(start, end);
+               outer_clean_range(__pa(start), __pa(end));
                break;
        case DMA_BIDIRECTIONAL:         /* writeback and invalidate */
                dmac_flush_range(start, end);
+               outer_flush_range(__pa(start), __pa(end));
                break;
        default:
                BUG();
        }
 }
-EXPORT_SYMBOL(consistent_sync);
+EXPORT_SYMBOL(dma_cache_maint);