提交 4e7f7266 编写于 作者: F Felix Fietkau 提交者: Ralf Baechle

MIPS: Remove unnecessary platform dma helper functions

The semantics stay the same - on Cavium Octeon the functions were dead
code (it overrides the MIPS DMA ops) - on other platforms they contained
no code at all.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5720/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
上级 8a8594a7
......@@ -52,23 +52,11 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
return 0;
}
static inline void plat_extra_sync_for_device(struct device *dev)
{
BUG();
}
static inline int plat_device_is_coherent(struct device *dev)
{
return 1;
}
static inline int plat_dma_mapping_error(struct device *dev,
dma_addr_t dma_addr)
{
BUG();
return 0;
}
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
......
......@@ -47,16 +47,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
return 1;
}
static inline void plat_extra_sync_for_device(struct device *dev)
{
}
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
......
......@@ -58,16 +58,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
return 1;
}
static inline void plat_extra_sync_for_device(struct device *dev)
{
}
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)
{
return 1; /* IP27 non-cohernet mode is unsupported */
......
......@@ -80,17 +80,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
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)
{
return 0; /* IP32 is non-cohernet */
......
......@@ -48,16 +48,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
return 1;
}
static inline void plat_extra_sync_for_device(struct device *dev)
{
}
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)
{
return 0;
......
......@@ -53,16 +53,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
return 1;
}
static inline void plat_extra_sync_for_device(struct device *dev)
{
}
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)
{
return 0;
......
......@@ -99,16 +99,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
return 1;
}
static inline void plat_extra_sync_for_device(struct device *dev)
{
}
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)
{
return 0;
......
......@@ -297,7 +297,6 @@ static void mips_dma_sync_single_for_cpu(struct device *dev,
static void mips_dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
{
plat_extra_sync_for_device(dev);
if (!plat_device_is_coherent(dev))
__dma_sync(dma_addr_to_page(dev, dma_handle),
dma_handle & ~PAGE_MASK, size, direction);
......@@ -327,7 +326,7 @@ static void mips_dma_sync_sg_for_device(struct device *dev,
int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return plat_dma_mapping_error(dev, dma_addr);
return 0;
}
int mips_dma_supported(struct device *dev, u64 mask)
......@@ -340,7 +339,6 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
{
BUG_ON(direction == DMA_NONE);
plat_extra_sync_for_device(dev);
if (!plat_device_is_coherent(dev))
__dma_sync_virtual(vaddr, size, direction);
}
......
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