[ARM] dma: coding style cleanups
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
committed by
Russell King
Russell King
parent
125ab12acf
commit
3216a97bb0
@@ -104,15 +104,14 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
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* Dummy noncoherent implementation. We don't provide a dma_cache_sync
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* function so drivers using this API are highlighted with build warnings.
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*/
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static inline void *
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dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
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static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
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dma_addr_t *handle, gfp_t gfp)
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{
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return NULL;
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}
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static inline void
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dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
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dma_addr_t handle)
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static inline void dma_free_noncoherent(struct device *dev, size_t size,
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void *cpu_addr, dma_addr_t handle)
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{
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}
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@@ -127,8 +126,7 @@ dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
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* return the CPU-viewed address, and sets @handle to be the
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* device-viewed address.
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*/
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extern void *
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dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp);
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extern void *dma_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
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/**
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* dma_free_coherent - free memory allocated by dma_alloc_coherent
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@@ -143,9 +141,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gf
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* References to memory and mappings associated with cpu_addr/handle
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* during and after this call executing are illegal.
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*/
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extern void
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dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
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dma_addr_t handle);
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extern void dma_free_coherent(struct device *, size_t, void *, dma_addr_t);
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/**
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* dma_mmap_coherent - map a coherent DMA allocation into user space
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@@ -159,8 +155,8 @@ dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
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* into user space. The coherent DMA buffer must not be freed by the
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* driver until the user space mapping has been released.
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*/
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int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
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void *cpu_addr, dma_addr_t handle, size_t size);
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int dma_mmap_coherent(struct device *, struct vm_area_struct *,
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void *, dma_addr_t, size_t);
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/**
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@@ -174,14 +170,14 @@ int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
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* return the CPU-viewed address, and sets @handle to be the
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* device-viewed address.
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*/
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extern void *
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dma_alloc_writecombine(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp);
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extern void *dma_alloc_writecombine(struct device *, size_t, dma_addr_t *,
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gfp_t);
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#define dma_free_writecombine(dev,size,cpu_addr,handle) \
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dma_free_coherent(dev,size,cpu_addr,handle)
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int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
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void *cpu_addr, dma_addr_t handle, size_t size);
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int dma_mmap_writecombine(struct device *, struct vm_area_struct *,
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void *, dma_addr_t, size_t);
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#ifdef CONFIG_DMABOUNCE
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@@ -209,7 +205,8 @@ int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
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* appropriate DMA pools for the device.
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*
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*/
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extern int dmabounce_register_dev(struct device *, unsigned long, unsigned long);
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extern int dmabounce_register_dev(struct device *, unsigned long,
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unsigned long);
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/**
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* dmabounce_unregister_dev
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@@ -244,19 +241,20 @@ extern int dma_needs_bounce(struct device*, dma_addr_t, size_t);
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/*
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* The DMA API, implemented by dmabounce.c. See below for descriptions.
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*/
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extern dma_addr_t dma_map_single(struct device *,void *, size_t, enum dma_data_direction);
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extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size,
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enum dma_data_direction dir);
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extern void dma_unmap_single(struct device *, dma_addr_t, size_t, enum dma_data_direction);
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extern dma_addr_t dma_map_single(struct device *, void *, size_t,
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enum dma_data_direction);
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extern dma_addr_t dma_map_page(struct device *, struct page *,
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unsigned long, size_t, enum dma_data_direction);
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extern void dma_unmap_single(struct device *, dma_addr_t, size_t,
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enum dma_data_direction);
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/*
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* Private functions
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*/
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int dmabounce_sync_for_cpu(struct device *, dma_addr_t, unsigned long,
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size_t, enum dma_data_direction);
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size_t, enum dma_data_direction);
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int dmabounce_sync_for_device(struct device *, dma_addr_t, unsigned long,
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size_t, enum dma_data_direction);
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size_t, enum dma_data_direction);
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#else
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#define dmabounce_sync_for_cpu(dev,dma,off,sz,dir) (1)
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#define dmabounce_sync_for_device(dev,dma,off,sz,dir) (1)
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@@ -276,9 +274,8 @@ int dmabounce_sync_for_device(struct device *, dma_addr_t, unsigned long,
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* can regain ownership by calling dma_unmap_single() or
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* dma_sync_single_for_cpu().
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*/
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static inline dma_addr_t
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dma_map_single(struct device *dev, void *cpu_addr, size_t size,
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enum dma_data_direction dir)
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static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
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size_t size, enum dma_data_direction dir)
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{
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if (!arch_is_coherent())
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dma_cache_maint(cpu_addr, size, dir);
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@@ -286,7 +283,6 @@ dma_map_single(struct device *dev, void *cpu_addr, size_t size,
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return virt_to_dma(dev, cpu_addr);
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}
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/**
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* dma_map_page - map a portion of a page for streaming DMA
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* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
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@@ -302,10 +298,8 @@ dma_map_single(struct device *dev, void *cpu_addr, size_t size,
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* can regain ownership by calling dma_unmap_page() or
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* dma_sync_single_for_cpu().
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*/
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static inline dma_addr_t
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dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size,
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enum dma_data_direction dir)
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static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size, enum dma_data_direction dir)
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{
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if (!arch_is_coherent())
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dma_cache_maint(page_address(page) + offset, size, dir);
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@@ -327,9 +321,8 @@ dma_map_page(struct device *dev, struct page *page,
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* After this call, reads by the CPU to the buffer are guaranteed to see
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* whatever the device wrote there.
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*/
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static inline void
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dma_unmap_single(struct device *dev, dma_addr_t handle, size_t size,
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enum dma_data_direction dir)
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static inline void dma_unmap_single(struct device *dev, dma_addr_t handle,
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size_t size, enum dma_data_direction dir)
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{
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/* nothing to do */
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}
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@@ -349,9 +342,8 @@ dma_unmap_single(struct device *dev, dma_addr_t handle, size_t size,
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* After this call, reads by the CPU to the buffer are guaranteed to see
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* whatever the device wrote there.
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*/
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static inline void
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dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
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enum dma_data_direction dir)
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static inline void dma_unmap_page(struct device *dev, dma_addr_t handle,
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size_t size, enum dma_data_direction dir)
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{
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dma_unmap_single(dev, handle, size, dir);
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}
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@@ -374,10 +366,9 @@ dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
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* must first the perform a dma_sync_for_device, and then the
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* device again owns the buffer.
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*/
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static inline void
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dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t handle,
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unsigned long offset, size_t size,
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enum dma_data_direction dir)
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static inline void dma_sync_single_range_for_cpu(struct device *dev,
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dma_addr_t handle, unsigned long offset, size_t size,
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enum dma_data_direction dir)
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{
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if (!dmabounce_sync_for_cpu(dev, handle, offset, size, dir))
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return;
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@@ -386,10 +377,9 @@ dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t handle,
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dma_cache_maint(dma_to_virt(dev, handle) + offset, size, dir);
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}
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static inline void
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dma_sync_single_range_for_device(struct device *dev, dma_addr_t handle,
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unsigned long offset, size_t size,
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enum dma_data_direction dir)
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static inline void dma_sync_single_range_for_device(struct device *dev,
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dma_addr_t handle, unsigned long offset, size_t size,
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enum dma_data_direction dir)
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{
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if (!dmabounce_sync_for_device(dev, handle, offset, size, dir))
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return;
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@@ -398,16 +388,14 @@ dma_sync_single_range_for_device(struct device *dev, dma_addr_t handle,
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dma_cache_maint(dma_to_virt(dev, handle) + offset, size, dir);
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}
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static inline void
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dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, size_t size,
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enum dma_data_direction dir)
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static inline void dma_sync_single_for_cpu(struct device *dev,
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dma_addr_t handle, size_t size, enum dma_data_direction dir)
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{
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dma_sync_single_range_for_cpu(dev, handle, 0, size, dir);
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}
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static inline void
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dma_sync_single_for_device(struct device *dev, dma_addr_t handle, size_t size,
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enum dma_data_direction dir)
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static inline void dma_sync_single_for_device(struct device *dev,
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dma_addr_t handle, size_t size, enum dma_data_direction dir)
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{
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dma_sync_single_range_for_device(dev, handle, 0, size, dir);
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}
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@@ -415,10 +403,14 @@ dma_sync_single_for_device(struct device *dev, dma_addr_t handle, size_t size,
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/*
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* The scatter list versions of the above methods.
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*/
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extern int dma_map_sg(struct device *, struct scatterlist *, int, enum dma_data_direction);
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extern void dma_unmap_sg(struct device *, struct scatterlist *, int, enum dma_data_direction);
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extern void dma_sync_sg_for_cpu(struct device*, struct scatterlist*, int, enum dma_data_direction);
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extern void dma_sync_sg_for_device(struct device*, struct scatterlist*, int, enum dma_data_direction);
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extern int dma_map_sg(struct device *, struct scatterlist *, int,
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enum dma_data_direction);
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extern void dma_unmap_sg(struct device *, struct scatterlist *, int,
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enum dma_data_direction);
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extern void dma_sync_sg_for_cpu(struct device *, struct scatterlist *, int,
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enum dma_data_direction);
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extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int,
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enum dma_data_direction);
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#endif /* __KERNEL__ */
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