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dma-mapping: fix the prototype of dma_map_single()

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Make dma_map_single() return the dma address, and remove the
pointless volatile.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2020-02-14 16:40:17 +09:00 committed by Peng Fan
parent ede2822864
commit c22c0dbd7d
4 changed files with 12 additions and 8 deletions
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5
arch/arm/include/asm/dma-mapping.h
View File

@ -11,6 +11,7 @@
#include <asm/cache.h>
#include <cpu_func.h>
#include <linux/dma-direction.h>
#include <linux/types.h>
#include <malloc.h>
#define dma_mapping_error(x, y) 0
@ -26,8 +27,8 @@ static inline void dma_free_coherent(void *addr)
free(addr);
}
static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
enum dma_data_direction dir)
static inline dma_addr_t dma_map_single(void *vaddr, size_t len,
enum dma_data_direction dir)
{
unsigned long addr = (unsigned long)vaddr;

5
arch/nds32/include/asm/dma-mapping.h
View File

@ -10,6 +10,7 @@
#include <asm/cache.h>
#include <cpu_func.h>
#include <linux/dma-direction.h>
#include <linux/types.h>
#include <malloc.h>
static void *dma_alloc_coherent(size_t len, unsigned long *handle)
@ -18,8 +19,8 @@ static void *dma_alloc_coherent(size_t len, unsigned long *handle)
return (void *)*handle;
}
static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
enum dma_data_direction dir)
static inline dma_addr_t dma_map_single(void *vaddr, size_t len,
enum dma_data_direction dir)
{
unsigned long addr = (unsigned long)vaddr;

5
arch/riscv/include/asm/dma-mapping.h
View File

@ -10,6 +10,7 @@
#define __ASM_RISCV_DMA_MAPPING_H
#include <common.h>
#include <linux/types.h>
#include <asm/cache.h>
#include <cpu_func.h>
#include <linux/dma-direction.h>
@ -28,8 +29,8 @@ static inline void dma_free_coherent(void *addr)
free(addr);
}
static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
enum dma_data_direction dir)
static inline dma_addr_t dma_map_single(void *vaddr, size_t len,
enum dma_data_direction dir)
{
unsigned long addr = (unsigned long)vaddr;

5
arch/x86/include/asm/dma-mapping.h
View File

@ -11,6 +11,7 @@
#include <asm/cache.h>
#include <cpu_func.h>
#include <linux/dma-direction.h>
#include <linux/types.h>
#include <malloc.h>
#define dma_mapping_error(x, y) 0
@ -26,8 +27,8 @@ static inline void dma_free_coherent(void *addr)
free(addr);
}
static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
enum dma_data_direction dir)
static inline dma_addr_t dma_map_single(void *vaddr, size_t len,
enum dma_data_direction dir)
{
unsigned long addr = (unsigned long)vaddr;