x86, ia64: convert to use generic dma_map_ops struct
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@lab.ntt.co.jp>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 @@
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 b81f822..5a34780 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -17,50 +17,9 @@
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_map_ops *dma_ops;
-extern struct dma_mapping_ops *dma_ops;
-
-static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifdef CONFIG_X86_32
return dma_ops;
@@ -75,7 +34,7 @@
/* 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);
@@ -94,138 +53,139 @@
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));
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
@@ -271,7 +231,7 @@
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);
@@ -297,7 +257,7 @@
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 @@
* 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 @@
* 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 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 @@
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 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 @@
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 @@
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 @@
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 @@
/*
* 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 @@
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 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 @@
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 @@
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 @@
* 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 @@
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 @@
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 @@
.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,