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MIPS: Adjust the dma-common.c platform hooks.

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We add a dev parameter to plat_unmap_dma_mem(), and hooks for
plat_dma_supported() and plat_extra_sync_for_device() which should be
nop changes for all existing targets.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney
2008-12-11 15:33:36 -08:00
committed by Ralf Baechle
parent ec454d8c4f
commit 843aef4930
6 changed files with 135 additions and 20 deletions
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26
arch/mips/include/asm/mach-generic/dma-coherence.h
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@@ -28,10 +28,34 @@ static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
return dma_addr;
}
static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)
static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr)
{
}
static inline int plat_dma_supported(struct device *dev, u64 mask)
{
/*
* we fall back to GFP_DMA when the mask isn't all 1s,
* so we can't guarantee allocations that must be
* within a tighter range than GFP_DMA..
*/
if (mask < DMA_BIT_MASK(24))
return 0;
return 1;
}
static inline void plat_extra_sync_for_device(struct device *dev)
{
return;
}
static inline int plat_dma_mapping_error(struct device *dev,
dma_addr_t dma_addr)
{
return 0;
}
static inline int plat_device_is_coherent(struct device *dev)
{
#ifdef CONFIG_DMA_COHERENT