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treewide: Consolidate get_dma_ops() implementations

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Introduce a new architecture-specific get_arch_dma_ops() function
that takes a struct bus_type * argument. Add get_dma_ops() in
<linux/dma-mapping.h>.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: x86@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bart Van Assche 2017-01-20 13:04:04 -08:00 committed by Doug Ledford
parent ca6e8e1031
commit 815dd18788
31 changed files with 48 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/alpha/include/asm/dma-mapping.h
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@ -3,7 +3,7 @@
extern const struct dma_map_ops *dma_ops; extern const struct dma_map_ops *dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return dma_ops; return dma_ops;
} }

2
arch/arc/include/asm/dma-mapping.h
View File

@ -20,7 +20,7 @@
extern const struct dma_map_ops arc_dma_ops; extern const struct dma_map_ops arc_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &arc_dma_ops; return &arc_dma_ops;
} }

4
arch/arm/include/asm/dma-mapping.h
View File

@ -23,12 +23,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &arm_dma_ops; return &arm_dma_ops;
} }
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
if (xen_initial_domain()) if (xen_initial_domain())
return xen_dma_ops; return xen_dma_ops;
else else
return __generic_dma_ops(dev); return __generic_dma_ops(NULL);
} }
#define HAVE_ARCH_DMA_SUPPORTED 1 #define HAVE_ARCH_DMA_SUPPORTED 1

4
arch/arm64/include/asm/dma-mapping.h
View File

@ -39,12 +39,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops; return &dummy_dma_ops;
} }
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
if (xen_initial_domain()) if (xen_initial_domain())
return xen_dma_ops; return xen_dma_ops;
else else
return __generic_dma_ops(dev); return __generic_dma_ops(NULL);
} }
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,

2
arch/avr32/include/asm/dma-mapping.h
View File

@ -6,7 +6,7 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
extern const struct dma_map_ops avr32_dma_ops; extern const struct dma_map_ops avr32_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &avr32_dma_ops; return &avr32_dma_ops;
} }

2
arch/blackfin/include/asm/dma-mapping.h
View File

@ -38,7 +38,7 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
extern const struct dma_map_ops bfin_dma_ops; extern const struct dma_map_ops bfin_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &bfin_dma_ops; return &bfin_dma_ops;
} }

2
arch/c6x/include/asm/dma-mapping.h
View File

@ -19,7 +19,7 @@
extern const struct dma_map_ops c6x_dma_ops; extern const struct dma_map_ops c6x_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &c6x_dma_ops; return &c6x_dma_ops;
} }

4
arch/cris/include/asm/dma-mapping.h
View File

@ -4,12 +4,12 @@
#ifdef CONFIG_PCI #ifdef CONFIG_PCI
extern const struct dma_map_ops v32_dma_ops; extern const struct dma_map_ops v32_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &v32_dma_ops; return &v32_dma_ops;
} }
#else #else
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
BUG(); BUG();
return NULL; return NULL;

2
arch/frv/include/asm/dma-mapping.h
View File

@ -9,7 +9,7 @@ extern unsigned long __nongprelbss dma_coherent_mem_end;
extern const struct dma_map_ops frv_dma_ops; extern const struct dma_map_ops frv_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &frv_dma_ops; return &frv_dma_ops;
} }

2
arch/h8300/include/asm/dma-mapping.h
View File

@ -3,7 +3,7 @@
extern const struct dma_map_ops h8300_dma_map_ops; extern const struct dma_map_ops h8300_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &h8300_dma_map_ops; return &h8300_dma_map_ops;
} }

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

@ -34,11 +34,8 @@ extern int bad_dma_address;
extern const struct dma_map_ops *dma_ops; extern const struct dma_map_ops *dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
if (unlikely(dev == NULL))
return NULL;
return dma_ops; return dma_ops;
} }

5
arch/ia64/include/asm/dma-mapping.h
View File

@ -23,7 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int, extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction); enum dma_data_direction);
#define get_dma_ops(dev) platform_dma_get_ops(dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return platform_dma_get_ops(NULL);
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{ {

4
arch/m32r/include/asm/dma-mapping.h
View File

@ -10,10 +10,8 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0) #define DMA_ERROR_CODE (~(dma_addr_t)0x0)
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
if (dev && dev->dma_ops)
return dev->dma_ops;
return &dma_noop_ops; return &dma_noop_ops;
} }

2
arch/m68k/include/asm/dma-mapping.h
View File

@ -3,7 +3,7 @@
extern const struct dma_map_ops m68k_dma_ops; extern const struct dma_map_ops m68k_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &m68k_dma_ops; return &m68k_dma_ops;
} }

2
arch/metag/include/asm/dma-mapping.h
View File

@ -3,7 +3,7 @@
extern const struct dma_map_ops metag_dma_ops; extern const struct dma_map_ops metag_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &metag_dma_ops; return &metag_dma_ops;
} }

2
arch/microblaze/include/asm/dma-mapping.h
View File

@ -38,7 +38,7 @@
*/ */
extern const struct dma_map_ops dma_direct_ops; extern const struct dma_map_ops dma_direct_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &dma_direct_ops; return &dma_direct_ops;
} }

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

@ -11,11 +11,8 @@
extern const struct dma_map_ops *mips_dma_map_ops; extern const struct dma_map_ops *mips_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
if (dev && dev->dma_ops)
return dev->dma_ops;
else
return mips_dma_map_ops; return mips_dma_map_ops;
} }

2
arch/mn10300/include/asm/dma-mapping.h
View File

@ -16,7 +16,7 @@
extern const struct dma_map_ops mn10300_dma_ops; extern const struct dma_map_ops mn10300_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &mn10300_dma_ops; return &mn10300_dma_ops;
} }

2
arch/nios2/include/asm/dma-mapping.h
View File

@ -12,7 +12,7 @@
extern const struct dma_map_ops nios2_dma_ops; extern const struct dma_map_ops nios2_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &nios2_dma_ops; return &nios2_dma_ops;
} }

2
arch/openrisc/include/asm/dma-mapping.h
View File

@ -30,7 +30,7 @@
extern const struct dma_map_ops or1k_dma_map_ops; extern const struct dma_map_ops or1k_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &or1k_dma_map_ops; return &or1k_dma_map_ops;
} }

2
arch/parisc/include/asm/dma-mapping.h
View File

@ -27,7 +27,7 @@ extern const struct dma_map_ops pcx_dma_ops;
extern const struct dma_map_ops *hppa_dma_ops; extern const struct dma_map_ops *hppa_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return hppa_dma_ops; return hppa_dma_ops;
} }

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

@ -78,17 +78,14 @@ extern struct dma_map_ops dma_iommu_ops;
#endif #endif
extern const struct dma_map_ops dma_direct_ops; extern const struct dma_map_ops dma_direct_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
/* We don't handle the NULL dev case for ISA for now. We could /* We don't handle the NULL dev case for ISA for now. We could
* do it via an out of line call but it is not needed for now. The * do it via an out of line call but it is not needed for now. The
* only ISA DMA device we support is the floppy and we have a hack * only ISA DMA device we support is the floppy and we have a hack
* in the floppy driver directly to get a device for us. * in the floppy driver directly to get a device for us.
*/ */
if (unlikely(dev == NULL))
return NULL; return NULL;
return dev->dma_ops;
} }
/* /*

2
arch/powerpc/include/asm/ps3.h
View File

@ -435,7 +435,7 @@ static inline void *ps3_system_bus_get_drvdata(
return dev_get_drvdata(&dev->core); return dev_get_drvdata(&dev->core);
} }
/* These two need global scope for get_dma_ops(). */ /* These two need global scope for get_arch_dma_ops(). */
extern struct bus_type ps3_system_bus_type; extern struct bus_type ps3_system_bus_type;

4
arch/s390/include/asm/dma-mapping.h
View File

@ -12,10 +12,8 @@
extern const struct dma_map_ops s390_pci_dma_ops; extern const struct dma_map_ops s390_pci_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
if (dev && dev->dma_ops)
return dev->dma_ops;
return &dma_noop_ops; return &dma_noop_ops;
} }

2
arch/sh/include/asm/dma-mapping.h
View File

@ -4,7 +4,7 @@
extern const struct dma_map_ops *dma_ops; extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void); extern void no_iommu_init(void);
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return dma_ops; return dma_ops;
} }

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

@ -24,14 +24,14 @@ extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type; extern struct bus_type pci_bus_type;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
#ifdef CONFIG_SPARC_LEON #ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon) if (sparc_cpu_model == sparc_leon)
return leon_dma_ops; return leon_dma_ops;
#endif #endif
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI) #if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
if (dev->bus == &pci_bus_type) if (bus == &pci_bus_type)
return &pci32_dma_ops; return &pci32_dma_ops;
#endif #endif
return dma_ops; return dma_ops;

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

@ -29,11 +29,8 @@ extern const struct dma_map_ops *gx_pci_dma_map_ops;
extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops; extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops; extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
if (dev && dev->dma_ops)
return dev->dma_ops;
else
return tile_dma_map_ops; return tile_dma_map_ops;
} }

2
arch/unicore32/include/asm/dma-mapping.h
View File

@ -23,7 +23,7 @@
extern const struct dma_map_ops swiotlb_dma_map_ops; extern const struct dma_map_ops swiotlb_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
return &swiotlb_dma_map_ops; return &swiotlb_dma_map_ops;
} }

9
arch/x86/include/asm/dma-mapping.h
View File

@ -27,16 +27,9 @@ extern int panic_on_overflow;
extern const struct dma_map_ops *dma_ops; extern const struct dma_map_ops *dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops; return dma_ops;
#else
if (unlikely(!dev) || !dev->dma_ops)
return dma_ops;
else
return dev->dma_ops;
#endif
} }
bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp); bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);

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

@ -20,11 +20,8 @@
extern const struct dma_map_ops xtensa_dma_map_ops; extern const struct dma_map_ops xtensa_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev) static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{ {
if (dev && dev->dma_ops)
return dev->dma_ops;
else
return &xtensa_dma_map_ops; return &xtensa_dma_map_ops;
} }

7
include/linux/dma-mapping.h
View File

@ -164,6 +164,13 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
#ifdef CONFIG_HAS_DMA #ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h> #include <asm/dma-mapping.h>
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->dma_ops)
return dev->dma_ops;
return get_arch_dma_ops(dev ? dev->bus : NULL);
}
static inline void set_dma_ops(struct device *dev, static inline void set_dma_ops(struct device *dev,
const struct dma_map_ops *dma_ops) const struct dma_map_ops *dma_ops)
{ {