void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_addr, unsigned long attrs)
{
if (!(attrs & DMA_ATTR_NON_CONSISTENT))
cpu_addr = (void *)CAC_ADDR((unsigned long)cpu_addr);
dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs);
}
static void nios2_dma_free(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle, struct dma_attrs *attrs)
{
unsigned long addr = (unsigned long) CAC_ADDR((unsigned long) vaddr);
free_pages(addr, get_order(size));
}
void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
unsigned long addr = (unsigned long) CAC_ADDR((unsigned long) vaddr);
free_pages(addr, get_order(size));
}
static int mips_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
unsigned long user_count = vma_pages(vma);
unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
unsigned long addr = (unsigned long)cpu_addr;
unsigned long off = vma->vm_pgoff;
unsigned long pfn;
int ret = -ENXIO;
if (!plat_device_is_coherent(dev))
addr = CAC_ADDR(addr);
pfn = page_to_pfn(virt_to_page((void *)addr));
if (attrs & DMA_ATTR_WRITE_COMBINE)
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
else
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (off < count && user_count <= (count - off)) {
ret = remap_pfn_range(vma, vma->vm_start,
pfn + off,
user_count << PAGE_SHIFT,
vma->vm_page_prot);
}
return ret;
}
void ahb_free_consistent(void *hwdev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
unsigned long addr = (unsigned long) vaddr;
addr = CAC_ADDR(addr);
free_pages(addr, get_order(size));
}
void *snd_malloc_sgbuf_pages(struct device *device,
size_t size, struct snd_dma_buffer *dmab,
size_t *res_size)
{
struct snd_sg_buf *sgbuf;
unsigned int i, pages;
struct snd_dma_buffer tmpb;
dmab->area = NULL;
dmab->addr = 0;
dmab->private_data = sgbuf = kzalloc(sizeof(*sgbuf), GFP_KERNEL);
if (! sgbuf)
return NULL;
sgbuf->dev = device;
pages = snd_sgbuf_aligned_pages(size);
sgbuf->tblsize = sgbuf_align_table(pages);
sgbuf->table = kcalloc(sgbuf->tblsize, sizeof(*sgbuf->table), GFP_KERNEL);
if (! sgbuf->table)
goto _failed;
sgbuf->page_table = kcalloc(sgbuf->tblsize, sizeof(*sgbuf->page_table), GFP_KERNEL);
if (! sgbuf->page_table)
goto _failed;
/* allocate each page */
for (i = 0; i < pages; i++) {
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, device, PAGE_SIZE, &tmpb) < 0) {
if (res_size == NULL)
goto _failed;
*res_size = size = sgbuf->pages * PAGE_SIZE;
break;
}
sgbuf->table[i].buf = tmpb.area;
sgbuf->table[i].addr = tmpb.addr;
#if (defined(CONFIG_LS2E_DEV_BOARD) || defined(CONFIG_LS2F_DEV_BOARD)) && defined(CONFIG_DMA_NONCOHERENT)
sgbuf->page_table[i] = virt_to_page(CAC_ADDR(tmpb.area));
#else
sgbuf->page_table[i] = virt_to_page(tmpb.area);
#endif
sgbuf->pages++;
}
sgbuf->size = size;
#if (defined(CONFIG_LS2E_DEV_BOARD) || defined(CONFIG_LS2F_DEV_BOARD)) && defined(CONFIG_DMA_NONCOHERENT)
dmab->area = vmap(sgbuf->page_table, sgbuf->pages, VM_MAP | VM_IO, pgprot_noncached(PAGE_KERNEL));
#else
dmab->area = vmap(sgbuf->page_table, sgbuf->pages, VM_MAP, PAGE_KERNEL);
#endif
if (! dmab->area)
goto _failed;
return dmab->area;
_failed:
snd_free_sgbuf_pages(dmab); /* free the table */
return NULL;
}
void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
unsigned long addr = (unsigned long) vaddr;
plat_unmap_dma_mem(dev, dma_handle);
if (!plat_device_is_coherent(dev))
addr = CAC_ADDR(addr);
free_pages(addr, get_order(size));
}
static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
unsigned long addr = (unsigned long) vaddr;
if (dma_release_from_coherent(dev, get_order(size), vaddr))
return;
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
if (!plat_device_is_coherent(dev))
addr = CAC_ADDR(addr);
free_pages(addr, get_order(size));
}
static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle, unsigned long attrs)
{
unsigned long addr = (unsigned long) vaddr;
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
struct page *page = NULL;
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
if (!(attrs & DMA_ATTR_NON_CONSISTENT) && !plat_device_is_coherent(dev))
addr = CAC_ADDR(addr);
page = virt_to_page((void *) addr);
if (!dma_release_from_contiguous(dev, page, count))
__free_pages(page, get_order(size));
}
static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
unsigned long addr = (unsigned long) vaddr;
int order = get_order(size);
if (dma_release_from_coherent(dev, order, vaddr))
return;
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
#ifdef CONFIG_BRCM_CONSISTENT_DMA
addr = (unsigned long)brcm_unmap_coherent(vaddr);
#else
if (!plat_device_is_coherent(dev))
addr = CAC_ADDR(addr);
#endif
free_pages(addr, get_order(size));
}
static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle, struct dma_attrs *attrs)
{
unsigned long addr = (unsigned long) vaddr;
int order = get_order(size);
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
struct page *page = NULL;
if (dma_release_from_coherent(dev, order, vaddr))
return;
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
if (!plat_device_is_coherent(dev) && !hw_coherentio)
addr = CAC_ADDR(addr);
page = virt_to_page((void *) addr);
if (!dma_release_from_contiguous(dev, page, count))
__free_pages(page, get_order(size));
}
void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
#ifdef CONFIG_MSTAR_CHIP
extern int hw_coherentio;
#endif
unsigned long addr = (unsigned long) vaddr;
int order = get_order(size);
if (dma_release_from_coherent(dev, order, vaddr))
return;
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
if (!plat_device_is_coherent(dev))
#ifdef CONFIG_MSTAR_CHIP
if (!hw_coherentio)
#endif
addr = CAC_ADDR(addr);
free_pages(addr, get_order(size));
}
void sh_sync_dma_for_device(void *vaddr, size_t size,
enum dma_data_direction direction)
{
void *addr;
addr = __in_29bit_mode() ?
(void *)CAC_ADDR((unsigned long)vaddr) : vaddr;
switch (direction) {
case DMA_FROM_DEVICE: /* invalidate only */
__flush_invalidate_region(addr, size);
break;
case DMA_TO_DEVICE: /* writeback only */
__flush_wback_region(addr, size);
break;
case DMA_BIDIRECTIONAL: /* writeback and invalidate */
__flush_purge_region(addr, size);
break;
default:
BUG();
}
}
long arch_dma_coherent_to_pfn(struct device *dev, void *cpu_addr,
dma_addr_t dma_addr)
{
unsigned long addr = CAC_ADDR((unsigned long)cpu_addr);
return page_to_pfn(virt_to_page((void *)addr));
}
