static void __isp_stat_buf_sync_magic(struct ispstat *stat,
struct ispstat_buffer *buf,
u32 buf_size, enum dma_data_direction dir,
void (*dma_sync)(struct device *,
dma_addr_t, unsigned long, size_t,
enum dma_data_direction))
{
/* Sync the initial and final magic words. */
dma_sync(stat->isp->dev, buf->dma_addr, 0, MAGIC_SIZE, dir);
dma_sync(stat->isp->dev, buf->dma_addr + (buf_size & PAGE_MASK),
buf_size & ~PAGE_MASK, MAGIC_SIZE, dir);
}
static void __isp_stat_buf_sync_magic(struct ispstat *stat,
struct ispstat_buffer *buf,
u32 buf_size, enum dma_data_direction dir,
void (*dma_sync)(struct device *,
dma_addr_t, unsigned long, size_t,
enum dma_data_direction))
{
struct device *dev = stat->isp->dev;
struct page *pg;
dma_addr_t dma_addr;
u32 offset;
/* Initial magic words */
pg = vmalloc_to_page(buf->virt_addr);
dma_addr = pfn_to_dma(dev, page_to_pfn(pg));
dma_sync(dev, dma_addr, 0, MAGIC_SIZE, dir);
/* Final magic words */
pg = vmalloc_to_page(buf->virt_addr + buf_size);
dma_addr = pfn_to_dma(dev, page_to_pfn(pg));
offset = ((u32)buf->virt_addr + buf_size) & ~PAGE_MASK;
dma_sync(dev, dma_addr, offset, MAGIC_SIZE, dir);
}