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dma-mapping: consolidate dma_set_mask

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Almost everyone implements dma_set_mask the same way, although some time
that's hidden in ->set_dma_mask methods.

This patch consolidates those into a common implementation that either
calls ->set_dma_mask if present or otherwise uses the default
implementation.  Some architectures used to only call ->set_dma_mask
after the initial checks, and those instance have been fixed to do the
full work.  h8300 implemented dma_set_mask bogusly as a no-ops and has
been fixed.

Unfortunately some architectures overload unrelated semantics like changing
the dma_ops into it so we still need to allow for an architecture override
for now.

[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2015-09-09 15:39:53 -07:00 committed by Linus Torvalds
parent ee196371d5
commit 452e06af1f
24 changed files with 28 additions and 169 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
arch/alpha/include/asm/dma-mapping.h
View file

@ -12,11 +12,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
#include <asm-generic/dma-mapping-common.h>
static inline int dma_set_mask(struct device *dev, u64 mask)
{
return get_dma_ops(dev)->set_dma_mask(dev, mask);
}
#define dma_cache_sync(dev, va, size, dir) ((void)0)
#endif /* _ALPHA_DMA_MAPPING_H */

10
arch/alpha/kernel/pci-noop.c
View file

@ -166,15 +166,6 @@ static int alpha_noop_supported(struct device *dev, u64 mask)
return mask < 0x00ffffffUL ? 0 : 1;
}
static int alpha_noop_set_mask(struct device *dev, u64 mask)
{
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
struct dma_map_ops alpha_noop_ops = {
.alloc = alpha_noop_alloc_coherent,
.free = alpha_noop_free_coherent,
@ -182,7 +173,6 @@ struct dma_map_ops alpha_noop_ops = {
.map_sg = alpha_noop_map_sg,
.mapping_error = alpha_noop_mapping_error,
.dma_supported = alpha_noop_supported,
.set_dma_mask = alpha_noop_set_mask,
};
struct dma_map_ops *dma_ops = &alpha_noop_ops;

11
arch/alpha/kernel/pci_iommu.c
View file

@ -939,16 +939,6 @@ static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr)
return dma_addr == 0;
}
static int alpha_pci_set_mask(struct device *dev, u64 mask)
{
if (!dev->dma_mask ||
!pci_dma_supported(alpha_gendev_to_pci(dev), mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
struct dma_map_ops alpha_pci_ops = {
.alloc = alpha_pci_alloc_coherent,
.free = alpha_pci_free_coherent,
@ -958,7 +948,6 @@ struct dma_map_ops alpha_pci_ops = {
.unmap_sg = alpha_pci_unmap_sg,
.mapping_error = alpha_pci_mapping_error,
.dma_supported = alpha_pci_supported,
.set_dma_mask = alpha_pci_set_mask,
};
struct dma_map_ops *dma_ops = &alpha_pci_ops;

5
arch/arm/include/asm/dma-mapping.h
View file

@ -48,11 +48,6 @@ extern int dma_supported(struct device *dev, u64 mask);
*/
#include <asm-generic/dma-mapping-common.h>
static inline int dma_set_mask(struct device *dev, u64 mask)
{
return get_dma_ops(dev)->set_dma_mask(dev, mask);
}
#ifdef __arch_page_to_dma
#error Please update to __arch_pfn_to_dma
#endif

9
arch/arm64/include/asm/dma-mapping.h
View file

@ -84,15 +84,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
return (phys_addr_t)dev_addr;
}
static inline int dma_set_mask(struct device *dev, u64 mask)
{
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)

5
arch/h8300/include/asm/dma-mapping.h
View file

@ -10,9 +10,4 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
#include <asm-generic/dma-mapping-common.h>
static inline int dma_set_mask(struct device *dev, u64 mask)
{
return 0;
}
#endif

1
arch/hexagon/include/asm/dma-mapping.h
View file

@ -45,7 +45,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
#define HAVE_ARCH_DMA_SUPPORTED 1
extern int dma_supported(struct device *dev, u64 mask);
extern int dma_set_mask(struct device *dev, u64 mask);
extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle);
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);

11
arch/hexagon/kernel/dma.c
View file

@ -44,17 +44,6 @@ int dma_supported(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_supported);
int dma_set_mask(struct device *dev, u64 mask)
{
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
EXPORT_SYMBOL(dma_set_mask);
static struct gen_pool *coherent_pool;

9
arch/ia64/include/asm/dma-mapping.h
View file

@ -27,15 +27,6 @@ extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
#include <asm-generic/dma-mapping-common.h>
static inline int
dma_set_mask (struct device *dev, u64 mask)
{
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)

14
arch/microblaze/include/asm/dma-mapping.h
View file

@ -46,20 +46,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
#include <asm-generic/dma-mapping-common.h>
static inline int dma_set_mask(struct device *dev, u64 dma_mask)
{
struct dma_map_ops *ops = get_dma_ops(dev);
if (unlikely(ops == NULL))
return -EIO;
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, dma_mask);
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;
*dev->dma_mask = dma_mask;
return 0;
}
static inline void __dma_sync(unsigned long paddr,
size_t size, enum dma_data_direction direction)
{

16
arch/mips/include/asm/dma-mapping.h
View file

@ -31,22 +31,6 @@ static inline void dma_mark_clean(void *addr, size_t size) {}
#include <asm-generic/dma-mapping-common.h>
static inline int
dma_set_mask(struct device *dev, u64 mask)
{
struct dma_map_ops *ops = get_dma_ops(dev);
if(!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, mask);
*dev->dma_mask = mask;
return 0;
}
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);

3
arch/mips/loongson64/common/dma-swiotlb.c
View file

@ -85,6 +85,9 @@ static void loongson_dma_sync_sg_for_device(struct device *dev,
static int loongson_dma_set_mask(struct device *dev, u64 mask)
{
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
if (mask > DMA_BIT_MASK(loongson_sysconf.dma_mask_bits)) {
*dev->dma_mask = DMA_BIT_MASK(loongson_sysconf.dma_mask_bits);
return -EIO;

9
arch/openrisc/include/asm/dma-mapping.h
View file

@ -44,13 +44,4 @@ static inline int dma_supported(struct device *dev, u64 dma_mask)
#include <asm-generic/dma-mapping-common.h>
static inline int dma_set_mask(struct device *dev, u64 dma_mask)
{
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;
*dev->dma_mask = dma_mask;
return 0;
}
#endif /* __ASM_OPENRISC_DMA_MAPPING_H */

4
arch/powerpc/include/asm/dma-mapping.h
View file

@ -122,9 +122,11 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
/* this will be removed soon */
#define flush_write_buffers()
#define HAVE_ARCH_DMA_SET_MASK 1
extern int dma_set_mask(struct device *dev, u64 dma_mask);
#include <asm-generic/dma-mapping-common.h>
extern int dma_set_mask(struct device *dev, u64 dma_mask);
extern int __dma_set_mask(struct device *dev, u64 dma_mask);
extern u64 __dma_get_required_mask(struct device *dev);

2
arch/s390/include/asm/dma-mapping.h
View file

@ -18,8 +18,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return &s390_dma_ops;
}
extern int dma_set_mask(struct device *dev, u64 mask);
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)
{

10
arch/s390/pci/pci_dma.c
View file

@ -262,16 +262,6 @@ static void dma_free_iommu(struct zpci_dev *zdev, unsigned long offset, int size
spin_unlock_irqrestore(&zdev->iommu_bitmap_lock, flags);
}
int dma_set_mask(struct device *dev, u64 mask)
{
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
EXPORT_SYMBOL_GPL(dma_set_mask);
static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction direction,

14
arch/sh/include/asm/dma-mapping.h
View file

@ -13,20 +13,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
#include <asm-generic/dma-mapping-common.h>
static inline int dma_set_mask(struct device *dev, u64 mask)
{
struct dma_map_ops *ops = get_dma_ops(dev);
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, mask);
*dev->dma_mask = mask;
return 0;
}
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction dir);

4
arch/sparc/include/asm/dma-mapping.h
View file

@ -37,7 +37,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return dma_ops;
}
#include <asm-generic/dma-mapping-common.h>
#define HAVE_ARCH_DMA_SET_MASK 1
static inline int dma_set_mask(struct device *dev, u64 mask)
{
@ -52,4 +52,6 @@ static inline int dma_set_mask(struct device *dev, u64 mask)
return -EINVAL;
}
#include <asm-generic/dma-mapping-common.h>
#endif

6
arch/tile/include/asm/dma-mapping.h
View file

@ -59,8 +59,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
#include <asm-generic/dma-mapping-common.h>
static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
@ -74,6 +72,10 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
return addr + size - 1 <= *dev->dma_mask;
}
#define HAVE_ARCH_DMA_SET_MASK 1
#include <asm-generic/dma-mapping-common.h>
static inline int
dma_set_mask(struct device *dev, u64 mask)
{

10
arch/unicore32/include/asm/dma-mapping.h
View file

@ -50,16 +50,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
static inline int dma_set_mask(struct device *dev, u64 dma_mask)
{
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;
*dev->dma_mask = dma_mask;
return 0;
}
static inline void dma_cache_sync(struct device *dev, void *vaddr,
size_t size, enum dma_data_direction direction)
{

2
arch/x86/include/asm/dma-mapping.h
View file

@ -48,8 +48,6 @@ extern int dma_supported(struct device *hwdev, u64 mask);
#include <asm-generic/dma-mapping-common.h>
extern int dma_set_mask(struct device *dev, u64 mask);
extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t flag,
struct dma_attrs *attrs);

11
arch/x86/kernel/pci-dma.c
View file

@ -58,17 +58,6 @@ EXPORT_SYMBOL(x86_dma_fallback_dev);
/* Number of entries preallocated for DMA-API debugging */
#define PREALLOC_DMA_DEBUG_ENTRIES 65536
int dma_set_mask(struct device *dev, u64 mask)
{
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
EXPORT_SYMBOL(dma_set_mask);
void __init pci_iommu_alloc(void)
{
struct iommu_table_entry *p;

11
arch/xtensa/include/asm/dma-mapping.h
View file

@ -32,17 +32,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
#include <asm-generic/dma-mapping-common.h>
static inline int
dma_set_mask(struct device *dev, u64 mask)
{
if(!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction);

15
include/asm-generic/dma-mapping-common.h
View file

@ -340,4 +340,19 @@ static inline int dma_supported(struct device *dev, u64 mask)
}
#endif
#ifndef HAVE_ARCH_DMA_SET_MASK
static inline int dma_set_mask(struct device *dev, u64 mask)
{
struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, mask);
if (!dev->dma_mask || !dma_supported(dev, mask))
return -EIO;
*dev->dma_mask = mask;
return 0;
}
#endif
#endif