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ARM: dma: use phys_addr_t in __dma_page_[cpu_to_dev/dev_to_cpu] 

On a 32 bit ARM architecture with LPAE extension physical addresses
cannot fit into unsigned long variable.

So fix it by using phys_addr_t instead of unsigned long.

Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
This commit is contained in:
Santosh Shilimkar 2014-04-24 11:30:07 -04:00
parent 812b99e4b0
commit 2161c2485d
1 changed files with 2 additions and 2 deletions
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4
arch/arm/mm/dma-mapping.c
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@ -885,7 +885,7 @@ static void dma_cache_maint_page(struct page *page, unsigned long offset,
static void __dma_page_cpu_to_dev(struct page *page, unsigned long off,
size_t size, enum dma_data_direction dir)
{
unsigned long paddr;
phys_addr_t paddr;
dma_cache_maint_page(page, off, size, dir, dmac_map_area);
@ -901,7 +901,7 @@ static void __dma_page_cpu_to_dev(struct page *page, unsigned long off,
static void __dma_page_dev_to_cpu(struct page *page, unsigned long off,
size_t size, enum dma_data_direction dir)
{
unsigned long paddr = page_to_phys(page) + off;
phys_addr_t paddr = page_to_phys(page) + off;
/* FIXME: non-speculating: not required */
/* don't bother invalidating if DMA to device */