[PATCH 2/3] convert X86 and IA64 to use generic dma_map_ops struct
From: FUJITA Tomonori
Date: Mon Jan 05 2009 - 10:01:03 EST
This converts X86 and IA64 to use include/linux/dma-mapping.h.
It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
---
arch/ia64/dig/Makefile | 4 +-
arch/ia64/dig/dig_vtd_iommu.c | 77 ------------------
arch/ia64/hp/common/hwsw_iommu.c | 6 +-
arch/ia64/hp/common/sba_iommu.c | 46 ++++++++----
arch/ia64/include/asm/dma-mapping.h | 107 ++++++++------------------
arch/ia64/include/asm/machvec.h | 12 ++-
arch/ia64/kernel/dma-mapping.c | 4 +-
arch/ia64/kernel/machvec.c | 8 +-
arch/ia64/kernel/pci-dma.c | 49 ++++++++----
arch/ia64/kernel/pci-swiotlb.c | 32 +++++---
arch/ia64/sn/pci/pci_dma.c | 58 +++++++-------
arch/x86/include/asm/device.h | 2 +-
arch/x86/include/asm/dma-mapping.h | 146 +++++++++++++----------------------
arch/x86/include/asm/iommu.h | 2 +-
arch/x86/kernel/amd_iommu.c | 8 +-
arch/x86/kernel/pci-calgary_64.c | 15 ++--
arch/x86/kernel/pci-dma.c | 4 +-
arch/x86/kernel/pci-gart_64.c | 14 ++--
arch/x86/kernel/pci-nommu.c | 5 +-
arch/x86/kernel/pci-swiotlb_64.c | 6 +-
drivers/pci/intel-iommu.c | 9 +-
include/linux/intel-iommu.h | 6 +-
include/linux/swiotlb.h | 18 +++--
lib/swiotlb.c | 18 +++--
24 files changed, 278 insertions(+), 378 deletions(-)
delete mode 100644 arch/ia64/dig/dig_vtd_iommu.c
diff --git a/arch/ia64/dig/Makefile b/arch/ia64/dig/Makefile
index 5c02838..2f7cadd 100644
--- a/arch/ia64/dig/Makefile
+++ b/arch/ia64/dig/Makefile
@@ -7,8 +7,8 @@
obj-y := setup.o
ifeq ($(CONFIG_DMAR), y)
-obj-$(CONFIG_IA64_GENERIC) += machvec.o machvec_vtd.o dig_vtd_iommu.o
+obj-$(CONFIG_IA64_GENERIC) += machvec.o machvec_vtd.o
else
obj-$(CONFIG_IA64_GENERIC) += machvec.o
endif
-obj-$(CONFIG_IA64_DIG_VTD) += dig_vtd_iommu.o
+
diff --git a/arch/ia64/dig/dig_vtd_iommu.c b/arch/ia64/dig/dig_vtd_iommu.c
deleted file mode 100644
index fdb8ba9..0000000
--- a/arch/ia64/dig/dig_vtd_iommu.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/intel-iommu.h>
-
-void *
-vtd_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
- gfp_t flags)
-{
- return intel_alloc_coherent(dev, size, dma_handle, flags);
-}
-EXPORT_SYMBOL_GPL(vtd_alloc_coherent);
-
-void
-vtd_free_coherent(struct device *dev, size_t size, void *vaddr,
- dma_addr_t dma_handle)
-{
- intel_free_coherent(dev, size, vaddr, dma_handle);
-}
-EXPORT_SYMBOL_GPL(vtd_free_coherent);
-
-dma_addr_t
-vtd_map_single_attrs(struct device *dev, void *addr, size_t size,
- int dir, struct dma_attrs *attrs)
-{
- return intel_map_single(dev, (phys_addr_t)addr, size, dir);
-}
-EXPORT_SYMBOL_GPL(vtd_map_single_attrs);
-
-void
-vtd_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
- int dir, struct dma_attrs *attrs)
-{
- intel_unmap_single(dev, iova, size, dir);
-}
-EXPORT_SYMBOL_GPL(vtd_unmap_single_attrs);
-
-int
-vtd_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents,
- int dir, struct dma_attrs *attrs)
-{
- return intel_map_sg(dev, sglist, nents, dir);
-}
-EXPORT_SYMBOL_GPL(vtd_map_sg_attrs);
-
-void
-vtd_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist,
- int nents, int dir, struct dma_attrs *attrs)
-{
- intel_unmap_sg(dev, sglist, nents, dir);
-}
-EXPORT_SYMBOL_GPL(vtd_unmap_sg_attrs);
-
-int
-vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
- return 0;
-}
-EXPORT_SYMBOL_GPL(vtd_dma_mapping_error);
-
-extern int iommu_dma_supported(struct device *dev, u64 mask);
-
-struct dma_mapping_ops vtd_dma_ops = {
- .alloc_coherent = vtd_alloc_coherent,
- .free_coherent = vtd_free_coherent,
- .map_single_attrs = vtd_map_single_attrs,
- .unmap_single_attrs = vtd_unmap_single_attrs,
- .map_sg_attrs = vtd_map_sg_attrs,
- .unmap_sg_attrs = vtd_unmap_sg_attrs,
- .sync_single_for_cpu = machvec_dma_sync_single,
- .sync_sg_for_cpu = machvec_dma_sync_sg,
- .sync_single_for_device = machvec_dma_sync_single,
- .sync_sg_for_device = machvec_dma_sync_sg,
- .dma_supported_op = iommu_dma_supported,
- .mapping_error = vtd_dma_mapping_error,
-};
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index e5bbeba..e4a80d8 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -17,7 +17,7 @@
#include <linux/swiotlb.h>
#include <asm/machvec.h>
-extern struct dma_mapping_ops sba_dma_ops, swiotlb_dma_ops;
+extern struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
/* swiotlb declarations & definitions: */
extern int swiotlb_late_init_with_default_size (size_t size);
@@ -30,10 +30,10 @@ extern int swiotlb_late_init_with_default_size (size_t size);
static inline int use_swiotlb(struct device *dev)
{
return dev && dev->dma_mask &&
- !sba_dma_ops.dma_supported_op(dev, *dev->dma_mask);
+ !sba_dma_ops.dma_supported(dev, *dev->dma_mask);
}
-struct dma_mapping_ops *hwsw_dma_get_ops(struct device *dev)
+struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
{
if (use_swiotlb(dev))
return &swiotlb_dma_ops;
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 29e7206..129b62e 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -909,11 +909,13 @@ sba_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
*
* See Documentation/DMA-mapping.txt
*/
-static dma_addr_t
-sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir,
- struct dma_attrs *attrs)
+static dma_addr_t sba_map_page(struct device *dev, struct page *page,
+ unsigned long poff, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct ioc *ioc;
+ void *addr = page_address(page) + poff;
dma_addr_t iovp;
dma_addr_t offset;
u64 *pdir_start;
@@ -992,6 +994,14 @@ sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir,
return SBA_IOVA(ioc, iovp, offset);
}
+static dma_addr_t sba_map_single_attrs(struct device *dev, void *addr,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ return sba_map_page(dev, virt_to_page(addr),
+ (unsigned long)addr & ~PAGE_MASK, size, dir, attrs);
+}
+
#ifdef ENABLE_MARK_CLEAN
static SBA_INLINE void
sba_mark_clean(struct ioc *ioc, dma_addr_t iova, size_t size)
@@ -1026,8 +1036,8 @@ sba_mark_clean(struct ioc *ioc, dma_addr_t iova, size_t size)
*
* See Documentation/DMA-mapping.txt
*/
-static void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
- int dir, struct dma_attrs *attrs)
+static void sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
struct ioc *ioc;
#if DELAYED_RESOURCE_CNT > 0
@@ -1095,6 +1105,12 @@ static void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t s
#endif /* DELAYED_RESOURCE_CNT == 0 */
}
+void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
+ enum dma_data_direction dir, struct dma_attrs *attrs)
+{
+ sba_unmap_page(dev, iova, size, dir, attrs);
+}
+
/**
* sba_alloc_coherent - allocate/map shared mem for DMA
* @dev: instance of PCI owned by the driver that's asking.
@@ -1423,7 +1439,8 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev,
* See Documentation/DMA-mapping.txt
*/
static int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist,
- int nents, int dir, struct dma_attrs *attrs)
+ int nents, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct ioc *ioc;
int coalesced, filled = 0;
@@ -1514,7 +1531,8 @@ static int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist,
* See Documentation/DMA-mapping.txt
*/
static void sba_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist,
- int nents, int dir, struct dma_attrs *attrs)
+ int nents, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
#ifdef ASSERT_PDIR_SANITY
struct ioc *ioc;
@@ -2062,7 +2080,7 @@ static struct acpi_driver acpi_sba_ioc_driver = {
},
};
-extern struct dma_mapping_ops swiotlb_dma_ops;
+extern struct dma_map_ops swiotlb_dma_ops;
static int __init
sba_init(void)
@@ -2176,18 +2194,18 @@ sba_page_override(char *str)
__setup("sbapagesize=",sba_page_override);
-struct dma_mapping_ops sba_dma_ops = {
+struct dma_map_ops sba_dma_ops = {
.alloc_coherent = sba_alloc_coherent,
.free_coherent = sba_free_coherent,
- .map_single_attrs = sba_map_single_attrs,
- .unmap_single_attrs = sba_unmap_single_attrs,
- .map_sg_attrs = sba_map_sg_attrs,
- .unmap_sg_attrs = sba_unmap_sg_attrs,
+ .map_page = sba_map_page,
+ .unmap_page = sba_unmap_page,
+ .map_sg = sba_map_sg_attrs,
+ .unmap_sg = sba_unmap_sg_attrs,
.sync_single_for_cpu = machvec_dma_sync_single,
.sync_sg_for_cpu = machvec_dma_sync_sg,
.sync_single_for_device = machvec_dma_sync_single,
.sync_sg_for_device = machvec_dma_sync_sg,
- .dma_supported_op = sba_dma_supported,
+ .dma_supported = sba_dma_supported,
.mapping_error = sba_dma_mapping_error,
};
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index bac3159..d6230f5 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -9,73 +9,21 @@
#include <linux/scatterlist.h>
#include <asm/swiotlb.h>
-struct dma_mapping_ops {
- int (*mapping_error)(struct device *dev,
- dma_addr_t dma_addr);
- void* (*alloc_coherent)(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp);
- void (*free_coherent)(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
- dma_addr_t (*map_single)(struct device *hwdev, unsigned long ptr,
- size_t size, int direction);
- void (*unmap_single)(struct device *dev, dma_addr_t addr,
- size_t size, int direction);
- dma_addr_t (*map_single_attrs)(struct device *dev, void *cpu_addr,
- size_t size, int direction,
- struct dma_attrs *attrs);
- void (*unmap_single_attrs)(struct device *dev,
- dma_addr_t dma_addr,
- size_t size, int direction,
- struct dma_attrs *attrs);
- void (*sync_single_for_cpu)(struct device *hwdev,
- dma_addr_t dma_handle, size_t size,
- int direction);
- void (*sync_single_for_device)(struct device *hwdev,
- dma_addr_t dma_handle, size_t size,
- int direction);
- void (*sync_single_range_for_cpu)(struct device *hwdev,
- dma_addr_t dma_handle, unsigned long offset,
- size_t size, int direction);
- void (*sync_single_range_for_device)(struct device *hwdev,
- dma_addr_t dma_handle, unsigned long offset,
- size_t size, int direction);
- void (*sync_sg_for_cpu)(struct device *hwdev,
- struct scatterlist *sg, int nelems,
- int direction);
- void (*sync_sg_for_device)(struct device *hwdev,
- struct scatterlist *sg, int nelems,
- int direction);
- int (*map_sg)(struct device *hwdev, struct scatterlist *sg,
- int nents, int direction);
- void (*unmap_sg)(struct device *hwdev,
- struct scatterlist *sg, int nents,
- int direction);
- int (*map_sg_attrs)(struct device *dev,
- struct scatterlist *sg, int nents,
- int direction, struct dma_attrs *attrs);
- void (*unmap_sg_attrs)(struct device *dev,
- struct scatterlist *sg, int nents,
- int direction,
- struct dma_attrs *attrs);
- int (*dma_supported_op)(struct device *hwdev, u64 mask);
- int is_phys;
-};
-
-extern struct dma_mapping_ops *dma_ops;
+extern struct dma_map_ops *dma_ops;
extern struct ia64_machine_vector ia64_mv;
extern void set_iommu_machvec(void);
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *daddr, gfp_t gfp)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
return ops->alloc_coherent(dev, size, daddr, gfp | GFP_DMA);
}
static inline void dma_free_coherent(struct device *dev, size_t size,
void *caddr, dma_addr_t daddr)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
ops->free_coherent(dev, size, caddr, daddr);
}
@@ -87,8 +35,10 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev,
enum dma_data_direction dir,
struct dma_attrs *attrs)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
- return ops->map_single_attrs(dev, caddr, size, dir, attrs);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->map_page(dev, virt_to_page(caddr),
+ (unsigned long)caddr & ~PAGE_MASK, size,
+ dir, attrs);
}
static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
@@ -96,8 +46,8 @@ static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
enum dma_data_direction dir,
struct dma_attrs *attrs)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
- ops->unmap_single_attrs(dev, daddr, size, dir, attrs);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->unmap_page(dev, daddr, size, dir, attrs);
}
#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
@@ -107,8 +57,8 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
int nents, enum dma_data_direction dir,
struct dma_attrs *attrs)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
- return ops->map_sg_attrs(dev, sgl, nents, dir, attrs);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->map_sg(dev, sgl, nents, dir, attrs);
}
static inline void dma_unmap_sg_attrs(struct device *dev,
@@ -116,8 +66,8 @@ static inline void dma_unmap_sg_attrs(struct device *dev,
enum dma_data_direction dir,
struct dma_attrs *attrs)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
- ops->unmap_sg_attrs(dev, sgl, nents, dir, attrs);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ ops->unmap_sg(dev, sgl, nents, dir, attrs);
}
#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
@@ -127,7 +77,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr,
size_t size,
enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
ops->sync_single_for_cpu(dev, daddr, size, dir);
}
@@ -135,7 +85,7 @@ static inline void dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sgl,
int nents, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
ops->sync_sg_for_cpu(dev, sgl, nents, dir);
}
@@ -144,7 +94,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
size_t size,
enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
ops->sync_single_for_device(dev, daddr, size, dir);
}
@@ -153,20 +103,29 @@ static inline void dma_sync_sg_for_device(struct device *dev,
int nents,
enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
ops->sync_sg_for_device(dev, sgl, nents, dir);
}
static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
return ops->mapping_error(dev, daddr);
}
-#define dma_map_page(dev, pg, off, size, dir) \
- dma_map_single(dev, page_address(pg) + (off), (size), (dir))
-#define dma_unmap_page(dev, dma_addr, size, dir) \
- dma_unmap_single(dev, dma_addr, size, dir)
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+ size_t offset, size_t size,
+ enum dma_data_direction dir)
+{
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->map_page(dev, page, offset, size, dir, NULL);
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
+ size_t size, enum dma_data_direction dir)
+{
+ dma_unmap_single(dev, addr, size, dir);
+}
/*
* Rest of this file is part of the "Advanced DMA API". Use at your own risk.
@@ -180,8 +139,8 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
static inline int dma_supported(struct device *dev, u64 mask)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
- return ops->dma_supported_op(dev, mask);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
+ return ops->dma_supported(dev, mask);
}
static inline int
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index 95e1708..e8442c7 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -11,7 +11,6 @@
#define _ASM_IA64_MACHVEC_H
#include <linux/types.h>
-#include <linux/swiotlb.h>
/* forward declarations: */
struct device;
@@ -24,6 +23,7 @@ struct task_struct;
struct pci_dev;
struct msi_desc;
struct dma_attrs;
+enum dma_data_direction;
typedef void ia64_mv_setup_t (char **);
typedef void ia64_mv_cpu_init_t (void);
@@ -45,7 +45,7 @@ typedef void ia64_mv_kernel_launch_event_t(void);
/* DMA-mapping interface: */
typedef void ia64_mv_dma_init (void);
-typedef struct dma_mapping_ops *ia64_mv_dma_get_ops(struct device *);
+typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
/*
* WARNING: The legacy I/O space is _architected_. Platforms are
@@ -97,8 +97,10 @@ machvec_noop_bus (struct pci_bus *bus)
extern void machvec_setup (char **);
extern void machvec_timer_interrupt (int, void *);
-extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int);
-extern void machvec_dma_sync_sg (struct device *, struct scatterlist *, int, int);
+extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
+ enum dma_data_direction);
+extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
+ enum dma_data_direction);
extern void machvec_tlb_migrate_finish (struct mm_struct *);
# if defined (CONFIG_IA64_HP_SIM)
@@ -250,7 +252,7 @@ extern void machvec_init_from_cmdline(const char *cmdline);
# endif /* CONFIG_IA64_GENERIC */
extern void swiotlb_dma_init(void);
-extern struct dma_mapping_ops *dma_get_ops(struct device *);
+extern struct dma_map_ops *dma_get_ops(struct device *);
/*
* Define default versions so we can extend machvec for new platforms without having
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 427f696..7060e13 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -1,9 +1,9 @@
#include <linux/dma-mapping.h>
-struct dma_mapping_ops *dma_ops;
+struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
-struct dma_mapping_ops *dma_get_ops(struct device *dev)
+struct dma_map_ops *dma_get_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c
index 7ccb228..d41a40e 100644
--- a/arch/ia64/kernel/machvec.c
+++ b/arch/ia64/kernel/machvec.c
@@ -1,5 +1,5 @@
#include <linux/module.h>
-
+#include <linux/dma-mapping.h>
#include <asm/machvec.h>
#include <asm/system.h>
@@ -75,14 +75,16 @@ machvec_timer_interrupt (int irq, void *dev_id)
EXPORT_SYMBOL(machvec_timer_interrupt);
void
-machvec_dma_sync_single (struct device *hwdev, dma_addr_t dma_handle, size_t size, int dir)
+machvec_dma_sync_single(struct device *hwdev, dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction dir)
{
mb();
}
EXPORT_SYMBOL(machvec_dma_sync_single);
void
-machvec_dma_sync_sg (struct device *hwdev, struct scatterlist *sg, int n, int dir)
+machvec_dma_sync_sg(struct device *hwdev, struct scatterlist *sg, int n,
+ enum dma_data_direction dir)
{
mb();
}
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 640669e..b30209e 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -41,21 +41,7 @@ struct device fallback_dev = {
.dma_mask = &fallback_dev.coherent_dma_mask,
};
-extern struct dma_mapping_ops vtd_dma_ops;
-
-void __init pci_iommu_alloc(void)
-{
- dma_ops = &vtd_dma_ops;
- /*
- * The order of these functions is important for
- * fall-back/fail-over reasons
- */
- detect_intel_iommu();
-
-#ifdef CONFIG_SWIOTLB
- pci_swiotlb_init();
-#endif
-}
+extern struct dma_map_ops intel_dma_ops;
static int __init pci_iommu_init(void)
{
@@ -81,10 +67,10 @@ iommu_dma_init(void)
int iommu_dma_supported(struct device *dev, u64 mask)
{
- struct dma_mapping_ops *ops = platform_dma_get_ops(dev);
+ struct dma_map_ops *ops = platform_dma_get_ops(dev);
- if (ops->dma_supported_op)
- return ops->dma_supported_op(dev, mask);
+ if (ops->dma_supported)
+ return ops->dma_supported(dev, mask);
/* Copied from i386. Doesn't make much sense, because it will
only work for pci_alloc_coherent.
@@ -113,4 +99,31 @@ int iommu_dma_supported(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(iommu_dma_supported);
+static int vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return 0;
+}
+
+void __init pci_iommu_alloc(void)
+{
+ dma_ops = &intel_dma_ops;
+
+ dma_ops->sync_single_for_cpu = machvec_dma_sync_single;
+ dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg;
+ dma_ops->sync_single_for_device = machvec_dma_sync_single;
+ dma_ops->sync_sg_for_device = machvec_dma_sync_sg;
+ dma_ops->dma_supported = iommu_dma_supported;
+ dma_ops->mapping_error = vtd_dma_mapping_error;
+
+ /*
+ * The order of these functions is important for
+ * fall-back/fail-over reasons
+ */
+ detect_intel_iommu();
+
+#ifdef CONFIG_SWIOTLB
+ pci_swiotlb_init();
+#endif
+}
+
#endif
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 9f172c8..6bf8f66 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -16,24 +16,36 @@ EXPORT_SYMBOL(swiotlb);
/* Set this to 1 if there is a HW IOMMU in the system */
int iommu_detected __read_mostly;
-struct dma_mapping_ops swiotlb_dma_ops = {
+static dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ return swiotlb_map_single_attrs(dev, page_address(page) + offset, size,
+ dir, attrs);
+}
+
+static void swiotlb_unmap_page(struct device *dev, dma_addr_t dma_handle,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
+{
+ swiotlb_unmap_single_attrs(dev, dma_handle, size, dir, attrs);
+}
+
+struct dma_map_ops swiotlb_dma_ops = {
.alloc_coherent = swiotlb_alloc_coherent,
.free_coherent = swiotlb_free_coherent,
- .map_single = swiotlb_map_single,
- .unmap_single = swiotlb_unmap_single,
- .map_single_attrs = swiotlb_map_single_attrs,
- .unmap_single_attrs = swiotlb_unmap_single_attrs,
- .map_sg_attrs = swiotlb_map_sg_attrs,
- .unmap_sg_attrs = swiotlb_unmap_sg_attrs,
+ .map_page = swiotlb_map_page,
+ .unmap_page = swiotlb_unmap_page,
+ .map_sg = swiotlb_map_sg_attrs,
+ .unmap_sg = swiotlb_unmap_sg_attrs,
.sync_single_for_cpu = swiotlb_sync_single_for_cpu,
.sync_single_for_device = swiotlb_sync_single_for_device,
.sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu,
.sync_single_range_for_device = swiotlb_sync_single_range_for_device,
.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
.sync_sg_for_device = swiotlb_sync_sg_for_device,
- .map_sg = swiotlb_map_sg,
- .unmap_sg = swiotlb_unmap_sg,
- .dma_supported_op = swiotlb_dma_supported,
+ .dma_supported = swiotlb_dma_supported,
.mapping_error = swiotlb_dma_mapping_error,
};
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index efdd694..9c788f9 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -10,7 +10,6 @@
*/
#include <linux/module.h>
-#include <linux/dma-attrs.h>
#include <linux/dma-mapping.h>
#include <asm/dma.h>
#include <asm/sn/intr.h>
@@ -171,10 +170,12 @@ static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr
* TODO: simplify our interface;
* figure out how to save dmamap handle so can use two step.
*/
-static dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
- size_t size, int direction,
- struct dma_attrs *attrs)
+static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
+ void *cpu_addr = page_address(page) + offset;
dma_addr_t dma_addr;
unsigned long phys_addr;
struct pci_dev *pdev = to_pci_dev(dev);
@@ -212,20 +213,20 @@ static dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr,
* by @dma_handle into the coherence domain. On SN, we're always cache
* coherent, so we just need to free any ATEs associated with this mapping.
*/
-static void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
- size_t size, int direction,
- struct dma_attrs *attrs)
+static void sn_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
BUG_ON(dev->bus != &pci_bus_type);
- provider->dma_unmap(pdev, dma_addr, direction);
+ provider->dma_unmap(pdev, dma_addr, dir);
}
/**
- * sn_dma_unmap_sg_attrs - unmap a DMA scatterlist
+ * sn_dma_unmap_sg - unmap a DMA scatterlist
* @dev: device to unmap
* @sg: scatterlist to unmap
* @nhwentries: number of scatterlist entries
@@ -234,9 +235,9 @@ static void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
*
* Unmap a set of streaming mode DMA translations.
*/
-static void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
- int nhwentries, int direction,
- struct dma_attrs *attrs)
+static void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sgl,
+ int nhwentries, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
int i;
struct pci_dev *pdev = to_pci_dev(dev);
@@ -246,14 +247,14 @@ static void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
BUG_ON(dev->bus != &pci_bus_type);
for_each_sg(sgl, sg, nhwentries, i) {
- provider->dma_unmap(pdev, sg->dma_address, direction);
+ provider->dma_unmap(pdev, sg->dma_address, dir);
sg->dma_address = (dma_addr_t) NULL;
sg->dma_length = 0;
}
}
/**
- * sn_dma_map_sg_attrs - map a scatterlist for DMA
+ * sn_dma_map_sg - map a scatterlist for DMA
* @dev: device to map for
* @sg: scatterlist to map
* @nhwentries: number of entries
@@ -267,8 +268,9 @@ static void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
*
* Maps each entry of @sg for DMA.
*/
-static int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
- int nhwentries, int direction, struct dma_attrs *attrs)
+static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
+ int nhwentries, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
unsigned long phys_addr;
struct scatterlist *saved_sg = sgl, *sg;
@@ -305,8 +307,7 @@ static int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
* Free any successfully allocated entries.
*/
if (i > 0)
- sn_dma_unmap_sg_attrs(dev, saved_sg, i,
- direction, attrs);
+ sn_dma_unmap_sg(dev, saved_sg, i, dir, attrs);
return 0;
}
@@ -317,25 +318,26 @@ static int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
}
static void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
- size_t size, int direction)
+ size_t size, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
static void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
- size_t size, int direction)
+ size_t size,
+ enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
static void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
static void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir)
{
BUG_ON(dev->bus != &pci_bus_type);
}
@@ -455,19 +457,19 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
return ret;
}
-static struct dma_mapping_ops sn_dma_ops = {
+static struct dma_map_ops sn_dma_ops = {
.alloc_coherent = sn_dma_alloc_coherent,
.free_coherent = sn_dma_free_coherent,
- .map_single_attrs = sn_dma_map_single_attrs,
- .unmap_single_attrs = sn_dma_unmap_single_attrs,
- .map_sg_attrs = sn_dma_map_sg_attrs,
- .unmap_sg_attrs = sn_dma_unmap_sg_attrs,
+ .map_page = sn_dma_map_page,
+ .unmap_page = sn_dma_unmap_page,
+ .map_sg = sn_dma_map_sg,
+ .unmap_sg = sn_dma_unmap_sg,
.sync_single_for_cpu = sn_dma_sync_single_for_cpu,
.sync_sg_for_cpu = sn_dma_sync_sg_for_cpu,
.sync_single_for_device = sn_dma_sync_single_for_device,
.sync_sg_for_device = sn_dma_sync_sg_for_device,
.mapping_error = sn_dma_mapping_error,
- .dma_supported_op = sn_dma_supported,
+ .dma_supported = sn_dma_supported,
};
void sn_dma_init(void)
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 3c034f4..4994a20 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -6,7 +6,7 @@ struct dev_archdata {
void *acpi_handle;
#endif
#ifdef CONFIG_X86_64
-struct dma_mapping_ops *dma_ops;
+struct dma_map_ops *dma_ops;
#endif
#ifdef CONFIG_DMAR
void *iommu; /* hook for IOMMU specific extension */
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index a0cb867..c59fc6e 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -18,50 +18,9 @@ extern int iommu_merge;
extern struct device x86_dma_fallback_dev;
extern int panic_on_overflow;
-struct dma_mapping_ops {
- int (*mapping_error)(struct device *dev,
- dma_addr_t dma_addr);
- void* (*alloc_coherent)(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp);
- void (*free_coherent)(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
- void (*sync_single_for_cpu)(struct device *hwdev,
- dma_addr_t dma_handle, size_t size,
- int direction);
- void (*sync_single_for_device)(struct device *hwdev,
- dma_addr_t dma_handle, size_t size,
- int direction);
- void (*sync_single_range_for_cpu)(struct device *hwdev,
- dma_addr_t dma_handle, unsigned long offset,
- size_t size, int direction);
- void (*sync_single_range_for_device)(struct device *hwdev,
- dma_addr_t dma_handle, unsigned long offset,
- size_t size, int direction);
- void (*sync_sg_for_cpu)(struct device *hwdev,
- struct scatterlist *sg, int nelems,
- int direction);
- void (*sync_sg_for_device)(struct device *hwdev,
- struct scatterlist *sg, int nelems,
- int direction);
- int (*map_sg)(struct device *hwdev, struct scatterlist *sg,
- int nents, int direction);
- void (*unmap_sg)(struct device *hwdev,
- struct scatterlist *sg, int nents,
- int direction);
- dma_addr_t (*map_page)(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction dir,
- struct dma_attrs *attrs);
- void (*unmap_page)(struct device *dev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction dir,
- struct dma_attrs *attrs);
- int (*dma_supported)(struct device *hwdev, u64 mask);
- int is_phys;
-};
-
-extern struct dma_mapping_ops *dma_ops;
-
-static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
+extern struct dma_map_ops *dma_ops;
+
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifdef CONFIG_X86_32
return dma_ops;
@@ -76,7 +35,7 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
/* Make sure we keep the same behaviour */
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->mapping_error)
return ops->mapping_error(dev, dma_addr);
@@ -95,139 +54,140 @@ extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
static inline dma_addr_t
dma_map_single(struct device *hwdev, void *ptr, size_t size,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
kmemcheck_mark_initialized(ptr, size);
return ops->map_page(hwdev, virt_to_page(ptr),
(unsigned long)ptr & ~PAGE_MASK, size,
- direction, NULL);
+ dir, NULL);
}
static inline void
dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
- ops->unmap_page(dev, addr, size, direction, NULL);
+ ops->unmap_page(dev, addr, size, dir, NULL);
}
static inline int
dma_map_sg(struct device *hwdev, struct scatterlist *sg,
- int nents, int direction)
+ int nents, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
- return ops->map_sg(hwdev, sg, nents, direction);
+ BUG_ON(!valid_dma_direction(dir));
+ return ops->map_sg(hwdev, sg, nents, dir, NULL);
}
static inline void
dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_sg)
- ops->unmap_sg(hwdev, sg, nents, direction);
+ ops->unmap_sg(hwdev, sg, nents, dir, NULL);
}
static inline void
dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
- size_t size, int direction)
+ size_t size, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_cpu)
- ops->sync_single_for_cpu(hwdev, dma_handle, size, direction);
+ ops->sync_single_for_cpu(hwdev, dma_handle, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle,
- size_t size, int direction)
+ size_t size, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_device)
- ops->sync_single_for_device(hwdev, dma_handle, size, direction);
+ ops->sync_single_for_device(hwdev, dma_handle, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
- unsigned long offset, size_t size, int direction)
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_range_for_cpu)
ops->sync_single_range_for_cpu(hwdev, dma_handle, offset,
- size, direction);
+ size, dir);
flush_write_buffers();
}
static inline void
dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle,
unsigned long offset, size_t size,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_range_for_device)
ops->sync_single_range_for_device(hwdev, dma_handle,
- offset, size, direction);
+ offset, size, dir);
flush_write_buffers();
}
static inline void
dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_cpu)
- ops->sync_sg_for_cpu(hwdev, sg, nelems, direction);
+ ops->sync_sg_for_cpu(hwdev, sg, nelems, dir);
flush_write_buffers();
}
static inline void
dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(hwdev);
+ struct dma_map_ops *ops = get_dma_ops(hwdev);
- BUG_ON(!valid_dma_direction(direction));
+ BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_device)
- ops->sync_sg_for_device(hwdev, sg, nelems, direction);
+ ops->sync_sg_for_device(hwdev, sg, nelems, dir);
flush_write_buffers();
}
static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
size_t offset, size_t size,
- int direction)
+ enum dma_data_direction dir)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
- BUG_ON(!valid_dma_direction(direction));
- return ops->map_page(dev, page, offset, size, direction, NULL);
+ BUG_ON(!valid_dma_direction(dir));
+ return ops->map_page(dev, page, offset, size, dir, NULL);
}
static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
- size_t size, int direction)
+ size_t size, enum dma_data_direction dir)
{
- dma_unmap_single(dev, addr, size, direction);
+ dma_unmap_single(dev, addr, size, dir);
}
static inline void
@@ -273,7 +233,7 @@ static inline void *
dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t gfp)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
void *memory;
gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
@@ -299,7 +259,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
static inline void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t bus)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
WARN_ON(irqs_disabled()); /* for portability */
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index a6ee9e6..af326a2 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -3,7 +3,7 @@
extern void pci_iommu_shutdown(void);
extern void no_iommu_init(void);
-extern struct dma_mapping_ops nommu_dma_ops;
+extern struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index a5dedb6..008e522 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1394,7 +1394,8 @@ static int map_sg_no_iommu(struct device *dev, struct scatterlist *sglist,
* lists).
*/
static int map_sg(struct device *dev, struct scatterlist *sglist,
- int nelems, int dir)
+ int nelems, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
unsigned long flags;
struct amd_iommu *iommu;
@@ -1461,7 +1462,8 @@ unmap:
* lists).
*/
static void unmap_sg(struct device *dev, struct scatterlist *sglist,
- int nelems, int dir)
+ int nelems, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
unsigned long flags;
struct amd_iommu *iommu;
@@ -1648,7 +1650,7 @@ static void prealloc_protection_domains(void)
}
}
-static struct dma_mapping_ops amd_iommu_dma_ops = {
+static struct dma_map_ops amd_iommu_dma_ops = {
.alloc_coherent = alloc_coherent,
.free_coherent = free_coherent,
.map_page = map_page,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 756138b..755c21e 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -380,8 +380,9 @@ static inline struct iommu_table *find_iommu_table(struct device *dev)
return tbl;
}
-static void calgary_unmap_sg(struct device *dev,
- struct scatterlist *sglist, int nelems, int direction)
+static void calgary_unmap_sg(struct device *dev, struct scatterlist *sglist,
+ int nelems,enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct iommu_table *tbl = find_iommu_table(dev);
struct scatterlist *s;
@@ -404,7 +405,8 @@ static void calgary_unmap_sg(struct device *dev,
}
static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
- int nelems, int direction)
+ int nelems, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct iommu_table *tbl = find_iommu_table(dev);
struct scatterlist *s;
@@ -429,15 +431,14 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
s->dma_address = (entry << PAGE_SHIFT) | s->offset;
/* insert into HW table */
- tce_build(tbl, entry, npages, vaddr & PAGE_MASK,
- direction);
+ tce_build(tbl, entry, npages, vaddr & PAGE_MASK, dir);
s->dma_length = s->length;
}
return nelems;
error:
- calgary_unmap_sg(dev, sg, nelems, direction);
+ calgary_unmap_sg(dev, sg, nelems, dir, NULL);
for_each_sg(sg, s, nelems, i) {
sg->dma_address = bad_dma_address;
sg->dma_length = 0;
@@ -518,7 +519,7 @@ static void calgary_free_coherent(struct device *dev, size_t size,
free_pages((unsigned long)vaddr, get_order(size));
}
-static struct dma_mapping_ops calgary_dma_ops = {
+static struct dma_map_ops calgary_dma_ops = {
.alloc_coherent = calgary_alloc_coherent,
.free_coherent = calgary_free_coherent,
.map_sg = calgary_map_sg,
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 19a1044..0d75c12 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -12,7 +12,7 @@
static int forbid_dac __read_mostly;
-struct dma_mapping_ops *dma_ops;
+struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
static int iommu_sac_force __read_mostly;
@@ -224,7 +224,7 @@ early_param("iommu", iommu_setup);
int dma_supported(struct device *dev, u64 mask)
{
- struct dma_mapping_ops *ops = get_dma_ops(dev);
+ struct dma_map_ops *ops = get_dma_ops(dev);
#ifdef CONFIG_PCI
if (mask > 0xffffffff && forbid_dac > 0) {
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 9c557c0..8cb3e45 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -302,8 +302,8 @@ static void gart_unmap_page(struct device *dev, dma_addr_t dma_addr,
/*
* Wrapper for pci_unmap_single working with scatterlists.
*/
-static void
-gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
struct scatterlist *s;
int i;
@@ -333,7 +333,7 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg,
addr = dma_map_area(dev, addr, s->length, dir, 0);
if (addr == bad_dma_address) {
if (i > 0)
- gart_unmap_sg(dev, sg, i, dir);
+ gart_unmap_sg(dev, sg, i, dir, NULL);
nents = 0;
sg[0].dma_length = 0;
break;
@@ -404,8 +404,8 @@ dma_map_cont(struct device *dev, struct scatterlist *start, int nelems,
* DMA map all entries in a scatterlist.
* Merge chunks that have page aligned sizes into a continuous mapping.
*/
-static int
-gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
+static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
struct scatterlist *s, *ps, *start_sg, *sgmap;
int need = 0, nextneed, i, out, start;
@@ -472,7 +472,7 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir)
error:
flush_gart();
- gart_unmap_sg(dev, sg, out, dir);
+ gart_unmap_sg(dev, sg, out, dir, NULL);
/* When it was forced or merged try again in a dumb way */
if (force_iommu || iommu_merge) {
@@ -711,7 +711,7 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
return -1;
}
-static struct dma_mapping_ops gart_dma_ops = {
+static struct dma_map_ops gart_dma_ops = {
.map_sg = gart_map_sg,
.unmap_sg = gart_unmap_sg,
.map_page = gart_map_page,
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index d42b69c..fe50214 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -54,7 +54,8 @@ static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
* the same here.
*/
static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
- int nents, int direction)
+ int nents, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
struct scatterlist *s;
int i;
@@ -78,7 +79,7 @@ static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr,
free_pages((unsigned long)vaddr, get_order(size));
}
-struct dma_mapping_ops nommu_dma_ops = {
+struct dma_map_ops nommu_dma_ops = {
.alloc_coherent = dma_generic_alloc_coherent,
.free_coherent = nommu_free_coherent,
.map_sg = nommu_map_sg,
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index 3ae354c..3f0d992 100644
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -67,7 +67,7 @@ static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags);
}
-struct dma_mapping_ops swiotlb_dma_ops = {
+struct dma_map_ops swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
.alloc_coherent = x86_swiotlb_alloc_coherent,
.free_coherent = swiotlb_free_coherent,
@@ -77,8 +77,8 @@ struct dma_mapping_ops swiotlb_dma_ops = {
.sync_single_range_for_device = swiotlb_sync_single_range_for_device,
.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
.sync_sg_for_device = swiotlb_sync_sg_for_device,
- .map_sg = swiotlb_map_sg,
- .unmap_sg = swiotlb_unmap_sg,
+ .map_sg = swiotlb_map_sg_attrs,
+ .unmap_sg = swiotlb_unmap_sg_attrs,
.map_page = swiotlb_map_page,
.unmap_page = swiotlb_unmap_page,
.dma_supported = NULL,
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index da273e4..b9a5629 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -2441,7 +2441,8 @@ void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr,
#define SG_ENT_VIRT_ADDRESS(sg) (sg_virt((sg)))
void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
- int nelems, int dir)
+ int nelems, enum dma_data_direction dir,
+ struct dma_attrs *attrs)
{
int i;
struct pci_dev *pdev = to_pci_dev(hwdev);
@@ -2499,7 +2500,7 @@ static int intel_nontranslate_map_sg(struct device *hddev,
}
int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
- int dir)
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
void *addr;
int i;
@@ -2579,15 +2580,13 @@ int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int nelems,
return nelems;
}
-static struct dma_mapping_ops intel_dma_ops = {
+struct dma_map_ops intel_dma_ops = {
.alloc_coherent = intel_alloc_coherent,
.free_coherent = intel_free_coherent,
.map_sg = intel_map_sg,
.unmap_sg = intel_unmap_sg,
-#ifdef CONFIG_X86_64
.map_page = intel_map_page,
.unmap_page = intel_unmap_page,
-#endif
};
static inline int iommu_domain_cache_init(void)
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index c4f6c10..a254db1 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -334,7 +334,9 @@ extern void *intel_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
extern void intel_free_coherent(struct device *, size_t, void *, dma_addr_t);
extern dma_addr_t intel_map_single(struct device *, phys_addr_t, size_t, int);
extern void intel_unmap_single(struct device *, dma_addr_t, size_t, int);
-extern int intel_map_sg(struct device *, struct scatterlist *, int, int);
-extern void intel_unmap_sg(struct device *, struct scatterlist *, int, int);
+extern int intel_map_sg(struct device *, struct scatterlist *, int,
+ enum dma_data_direction, struct dma_attrs *);
+extern void intel_unmap_sg(struct device *, struct scatterlist *, int,
+ enum dma_data_direction, struct dma_attrs *);
#endif
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index dedd3c0..0567c3d 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -66,36 +66,38 @@ swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
extern int
swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
- int dir, struct dma_attrs *attrs);
+ enum dma_data_direction dir, struct dma_attrs *attrs);
extern void
swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
- int nelems, int dir, struct dma_attrs *attrs);
+ int nelems, enum dma_data_direction dir,
+ struct dma_attrs *attrs);
extern void
swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir);
+ size_t size, enum dma_data_direction dir);
extern void
swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
- int nelems, int dir);
+ int nelems, enum dma_data_direction dir);
extern void
swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir);
+ size_t size, enum dma_data_direction dir);
extern void
swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
- int nelems, int dir);
+ int nelems, enum dma_data_direction dir);
extern void
swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
- unsigned long offset, size_t size, int dir);
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir);
extern void
swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
unsigned long offset, size_t size,
- int dir);
+ enum dma_data_direction dir);
extern int
swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 48deef7..d047de9 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -736,7 +736,7 @@ swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
void
swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir)
+ size_t size, enum dma_data_direction dir)
{
swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_CPU);
}
@@ -744,7 +744,7 @@ EXPORT_SYMBOL(swiotlb_sync_single_for_cpu);
void
swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr,
- size_t size, int dir)
+ size_t size, enum dma_data_direction dir)
{
swiotlb_sync_single(hwdev, dev_addr, size, dir, SYNC_FOR_DEVICE);
}
@@ -769,7 +769,8 @@ swiotlb_sync_single_range(struct device *hwdev, dma_addr_t dev_addr,
void
swiotlb_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
- unsigned long offset, size_t size, int dir)
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir)
{
swiotlb_sync_single_range(hwdev, dev_addr, offset, size, dir,
SYNC_FOR_CPU);
@@ -778,7 +779,8 @@ EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_cpu);
void
swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr,
- unsigned long offset, size_t size, int dir)
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir)
{
swiotlb_sync_single_range(hwdev, dev_addr, offset, size, dir,
SYNC_FOR_DEVICE);
@@ -803,7 +805,7 @@ EXPORT_SYMBOL_GPL(swiotlb_sync_single_range_for_device);
*/
int
swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
- int dir, struct dma_attrs *attrs)
+ enum dma_data_direction dir, struct dma_attrs *attrs)
{
struct scatterlist *sg;
int i;
@@ -850,7 +852,7 @@ EXPORT_SYMBOL(swiotlb_map_sg);
*/
void
swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
- int nelems, int dir, struct dma_attrs *attrs)
+ int nelems, enum dma_data_direction dir, struct dma_attrs *attrs)
{
struct scatterlist *sg;
int i;
@@ -902,7 +904,7 @@ swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sgl,
void
swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
- int nelems, int dir)
+ int nelems, enum dma_data_direction dir)
{
swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_CPU);
}
@@ -910,7 +912,7 @@ EXPORT_SYMBOL(swiotlb_sync_sg_for_cpu);
void
swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
- int nelems, int dir)
+ int nelems, enum dma_data_direction dir)
{
swiotlb_sync_sg(hwdev, sg, nelems, dir, SYNC_FOR_DEVICE);
}
--
1.6.0.6
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