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authorJens Axboe <jens.axboe@oracle.com>2007-10-22 20:02:46 +0200
committerJens Axboe <jens.axboe@oracle.com>2007-10-22 21:19:59 +0200
commit58b053e4ce9d2fc3023645c1b96e537c72aa8d9a (patch)
tree35fbd72eb62a37375bc06c01e356afd7da0c9693 /arch
parentUpdate swiotlb to use sg helpers (diff)
downloadlinux-dev-58b053e4ce9d2fc3023645c1b96e537c72aa8d9a.tar.xz
linux-dev-58b053e4ce9d2fc3023645c1b96e537c72aa8d9a.zip
Update arch/ to use sg helpers
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/kernel/pci_iommu.c2
-rw-r--r--arch/arm/common/dmabounce.c2
-rw-r--r--arch/blackfin/kernel/dma-mapping.c3
-rw-r--r--arch/ia64/hp/common/sba_iommu.c2
-rw-r--r--arch/ia64/hp/sim/simscsi.c4
-rw-r--r--arch/ia64/sn/pci/pci_dma.c2
-rw-r--r--arch/m68k/kernel/dma.c2
-rw-r--r--arch/mips/mm/dma-default.c16
-rw-r--r--arch/powerpc/kernel/dma_64.c3
-rw-r--r--arch/powerpc/kernel/ibmebus.c3
-rw-r--r--arch/powerpc/kernel/iommu.c2
-rw-r--r--arch/powerpc/platforms/ps3/system-bus.c5
-rw-r--r--arch/sparc/kernel/ioport.c17
-rw-r--r--arch/sparc/mm/io-unit.c2
-rw-r--r--arch/sparc/mm/iommu.c8
-rw-r--r--arch/sparc/mm/sun4c.c2
-rw-r--r--arch/sparc64/kernel/iommu.c7
-rw-r--r--arch/sparc64/kernel/iommu_common.c13
-rw-r--r--arch/sparc64/kernel/ldc.c2
-rw-r--r--arch/sparc64/kernel/pci_sun4v.c7
-rw-r--r--arch/x86/kernel/pci-calgary_64.c10
-rw-r--r--arch/x86/kernel/pci-gart_64.c4
-rw-r--r--arch/x86/kernel/pci-nommu_64.c4
23 files changed, 55 insertions, 67 deletions
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index e1c470752ebc..ee07dceae1d4 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -465,7 +465,7 @@ EXPORT_SYMBOL(pci_free_consistent);
Write dma_length of each leader with the combined lengths of
the mergable followers. */
-#define SG_ENT_VIRT_ADDRESS(SG) (page_address((SG)->page) + (SG)->offset)
+#define SG_ENT_VIRT_ADDRESS(SG) (sg_virt((SG)))
#define SG_ENT_PHYS_ADDRESS(SG) __pa(SG_ENT_VIRT_ADDRESS(SG))
static void
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 44ab0dad4035..9d371e476552 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -442,7 +442,7 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
BUG_ON(dir == DMA_NONE);
for (i = 0; i < nents; i++, sg++) {
- struct page *page = sg->page;
+ struct page *page = sg_page(sg);
unsigned int offset = sg->offset;
unsigned int length = sg->length;
void *ptr = page_address(page) + offset;
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index 94d7b119b71e..a16cb03c5291 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -160,8 +160,7 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
BUG_ON(direction == DMA_NONE);
for (i = 0; i < nents; i++, sg++) {
- sg->dma_address = (dma_addr_t)(page_address(sg->page) +
- sg->offset);
+ sg->dma_address = (dma_addr_t) sg_virt(sg);
invalidate_dcache_range(sg_dma_address(sg),
sg_dma_address(sg) +
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 3c95f4184b99..bc859a311eaf 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -246,7 +246,7 @@ static int reserve_sba_gart = 1;
static SBA_INLINE void sba_mark_invalid(struct ioc *, dma_addr_t, size_t);
static SBA_INLINE void sba_free_range(struct ioc *, dma_addr_t, size_t);
-#define sba_sg_address(sg) (page_address((sg)->page) + (sg)->offset)
+#define sba_sg_address(sg) sg_virt((sg))
#ifdef FULL_VALID_PDIR
static u64 prefetch_spill_page;
diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c
index a3a558a06757..6ef9b5219930 100644
--- a/arch/ia64/hp/sim/simscsi.c
+++ b/arch/ia64/hp/sim/simscsi.c
@@ -131,7 +131,7 @@ simscsi_sg_readwrite (struct scsi_cmnd *sc, int mode, unsigned long offset)
stat.fd = desc[sc->device->id];
scsi_for_each_sg(sc, sl, scsi_sg_count(sc), i) {
- req.addr = __pa(page_address(sl->page) + sl->offset);
+ req.addr = __pa(sg_virt(sl));
req.len = sl->length;
if (DBG)
printk("simscsi_sg_%s @ %lx (off %lx) use_sg=%d len=%d\n",
@@ -212,7 +212,7 @@ static void simscsi_fillresult(struct scsi_cmnd *sc, char *buf, unsigned len)
if (!len)
break;
thislen = min(len, slp->length);
- memcpy(page_address(slp->page) + slp->offset, buf, thislen);
+ memcpy(sg_virt(slp), buf, thislen);
len -= thislen;
}
}
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index ecd8a52b9b9e..511db2fd7bff 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -16,7 +16,7 @@
#include <asm/sn/pcidev.h>
#include <asm/sn/sn_sal.h>
-#define SG_ENT_VIRT_ADDRESS(sg) (page_address((sg)->page) + (sg)->offset)
+#define SG_ENT_VIRT_ADDRESS(sg) (sg_virt((sg)))
#define SG_ENT_PHYS_ADDRESS(SG) virt_to_phys(SG_ENT_VIRT_ADDRESS(SG))
/**
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 9d4e4b5b6bd8..ef490e1ce600 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -121,7 +121,7 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
int i;
for (i = 0; i < nents; sg++, i++) {
- sg->dma_address = page_to_phys(sg->page) + sg->offset;
+ sg->dma_address = sg_phys(sg);
dma_sync_single_for_device(dev, sg->dma_address, sg->length, dir);
}
return nents;
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 98b5e5bac02e..b0b034c4654f 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -165,12 +165,11 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
for (i = 0; i < nents; i++, sg++) {
unsigned long addr;
- addr = (unsigned long) page_address(sg->page);
+ addr = (unsigned long) sg_virt(sg);
if (!plat_device_is_coherent(dev) && addr)
- __dma_sync(addr + sg->offset, sg->length, direction);
+ __dma_sync(addr, sg->length, direction);
sg->dma_address = plat_map_dma_mem(dev,
- (void *)(addr + sg->offset),
- sg->length);
+ (void *)addr, sg->length);
}
return nents;
@@ -223,10 +222,9 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
for (i = 0; i < nhwentries; i++, sg++) {
if (!plat_device_is_coherent(dev) &&
direction != DMA_TO_DEVICE) {
- addr = (unsigned long) page_address(sg->page);
+ addr = (unsigned long) sg_virt(sg);
if (addr)
- __dma_sync(addr + sg->offset, sg->length,
- direction);
+ __dma_sync(addr, sg->length, direction);
}
plat_unmap_dma_mem(sg->dma_address);
}
@@ -304,7 +302,7 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
/* Make sure that gcc doesn't leave the empty loop body. */
for (i = 0; i < nelems; i++, sg++) {
if (cpu_is_noncoherent_r10000(dev))
- __dma_sync((unsigned long)page_address(sg->page),
+ __dma_sync((unsigned long)page_address(sg_page(sg)),
sg->length, direction);
plat_unmap_dma_mem(sg->dma_address);
}
@@ -322,7 +320,7 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nele
/* Make sure that gcc doesn't leave the empty loop body. */
for (i = 0; i < nelems; i++, sg++) {
if (!plat_device_is_coherent(dev))
- __dma_sync((unsigned long)page_address(sg->page),
+ __dma_sync((unsigned long)page_address(sg_page(sg)),
sg->length, direction);
plat_unmap_dma_mem(sg->dma_address);
}
diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c
index 9001104b56b0..14206e3f0819 100644
--- a/arch/powerpc/kernel/dma_64.c
+++ b/arch/powerpc/kernel/dma_64.c
@@ -161,8 +161,7 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
int i;
for_each_sg(sgl, sg, nents, i) {
- sg->dma_address = (page_to_phys(sg->page) + sg->offset) |
- dma_direct_offset;
+ sg->dma_address = sg_phys(sg) | dma_direct_offset;
sg->dma_length = sg->length;
}
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 289d7e935918..72fd87156b24 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -102,8 +102,7 @@ static int ibmebus_map_sg(struct device *dev,
int i;
for_each_sg(sgl, sg, nents, i) {
- sg->dma_address = (dma_addr_t)page_address(sg->page)
- + sg->offset;
+ sg->dma_address = (dma_addr_t) sg_virt(sg);
sg->dma_length = sg->length;
}
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 306a6f75b6c5..2d0c9ef555e9 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -307,7 +307,7 @@ int iommu_map_sg(struct iommu_table *tbl, struct scatterlist *sglist,
continue;
}
/* Allocate iommu entries for that segment */
- vaddr = (unsigned long)page_address(s->page) + s->offset;
+ vaddr = (unsigned long) sg_virt(s);
npages = iommu_num_pages(vaddr, slen);
entry = iommu_range_alloc(tbl, npages, &handle, mask >> IOMMU_PAGE_SHIFT, 0);
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 07e64b48e7fc..6405f4a36763 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -628,9 +628,8 @@ static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sgl,
int i;
for_each_sg(sgl, sg, nents, i) {
- int result = ps3_dma_map(dev->d_region,
- page_to_phys(sg->page) + sg->offset, sg->length,
- &sg->dma_address, 0);
+ int result = ps3_dma_map(dev->d_region, sg_phys(sg),
+ sg->length, &sg->dma_address, 0);
if (result) {
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 9c3ed88853f3..97aa50d1e4ae 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -727,9 +727,8 @@ int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sgl, int nents,
BUG_ON(direction == PCI_DMA_NONE);
/* IIep is write-through, not flushing. */
for_each_sg(sgl, sg, nents, n) {
- BUG_ON(page_address(sg->page) == NULL);
- sg->dvma_address =
- virt_to_phys(page_address(sg->page)) + sg->offset;
+ BUG_ON(page_address(sg_page(sg)) == NULL);
+ sg->dvma_address = virt_to_phys(sg_virt(sg));
sg->dvma_length = sg->length;
}
return nents;
@@ -748,9 +747,9 @@ void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sgl, int nents,
BUG_ON(direction == PCI_DMA_NONE);
if (direction != PCI_DMA_TODEVICE) {
for_each_sg(sgl, sg, nents, n) {
- BUG_ON(page_address(sg->page) == NULL);
+ BUG_ON(page_address(sg_page(sg)) == NULL);
mmu_inval_dma_area(
- (unsigned long) page_address(sg->page),
+ (unsigned long) page_address(sg_page(sg)),
(sg->length + PAGE_SIZE-1) & PAGE_MASK);
}
}
@@ -798,9 +797,9 @@ void pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sgl, int
BUG_ON(direction == PCI_DMA_NONE);
if (direction != PCI_DMA_TODEVICE) {
for_each_sg(sgl, sg, nents, n) {
- BUG_ON(page_address(sg->page) == NULL);
+ BUG_ON(page_address(sg_page(sg)) == NULL);
mmu_inval_dma_area(
- (unsigned long) page_address(sg->page),
+ (unsigned long) page_address(sg_page(sg)),
(sg->length + PAGE_SIZE-1) & PAGE_MASK);
}
}
@@ -814,9 +813,9 @@ void pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sgl,
BUG_ON(direction == PCI_DMA_NONE);
if (direction != PCI_DMA_TODEVICE) {
for_each_sg(sgl, sg, nents, n) {
- BUG_ON(page_address(sg->page) == NULL);
+ BUG_ON(page_address(sg_page(sg)) == NULL);
mmu_inval_dma_area(
- (unsigned long) page_address(sg->page),
+ (unsigned long) page_address(sg_page(sg)),
(sg->length + PAGE_SIZE-1) & PAGE_MASK);
}
}
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index 375b4db63704..1666087c5b80 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -144,7 +144,7 @@ static void iounit_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus
spin_lock_irqsave(&iounit->lock, flags);
while (sz != 0) {
--sz;
- sg->dvma_address = iounit_get_area(iounit, (unsigned long)page_address(sg->page) + sg->offset, sg->length);
+ sg->dvma_address = iounit_get_area(iounit, sg_virt(sg), sg->length);
sg->dvma_length = sg->length;
sg = sg_next(sg);
}
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 283656d9f6ea..4b934270f05e 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -238,7 +238,7 @@ static void iommu_get_scsi_sgl_noflush(struct scatterlist *sg, int sz, struct sb
while (sz != 0) {
--sz;
n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
- sg->dvma_address = iommu_get_one(sg->page, n, sbus) + sg->offset;
+ sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
sg->dvma_length = (__u32) sg->length;
sg = sg_next(sg);
}
@@ -252,7 +252,7 @@ static void iommu_get_scsi_sgl_gflush(struct scatterlist *sg, int sz, struct sbu
while (sz != 0) {
--sz;
n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
- sg->dvma_address = iommu_get_one(sg->page, n, sbus) + sg->offset;
+ sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
sg->dvma_length = (__u32) sg->length;
sg = sg_next(sg);
}
@@ -273,7 +273,7 @@ static void iommu_get_scsi_sgl_pflush(struct scatterlist *sg, int sz, struct sbu
* XXX Is this a good assumption?
* XXX What if someone else unmaps it here and races us?
*/
- if ((page = (unsigned long) page_address(sg->page)) != 0) {
+ if ((page = (unsigned long) page_address(sg_page(sg))) != 0) {
for (i = 0; i < n; i++) {
if (page != oldpage) { /* Already flushed? */
flush_page_for_dma(page);
@@ -283,7 +283,7 @@ static void iommu_get_scsi_sgl_pflush(struct scatterlist *sg, int sz, struct sbu
}
}
- sg->dvma_address = iommu_get_one(sg->page, n, sbus) + sg->offset;
+ sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
sg->dvma_length = (__u32) sg->length;
sg = sg_next(sg);
}
diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c
index ee6708fc4492..a2cc141291c7 100644
--- a/arch/sparc/mm/sun4c.c
+++ b/arch/sparc/mm/sun4c.c
@@ -1228,7 +1228,7 @@ static void sun4c_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *
{
while (sz != 0) {
--sz;
- sg->dvma_address = (__u32)sun4c_lockarea(page_address(sg->page) + sg->offset, sg->length);
+ sg->dvma_address = (__u32)sun4c_lockarea(sg_virt(sg), sg->length);
sg->dvma_length = sg->length;
sg = sg_next(sg);
}
diff --git a/arch/sparc64/kernel/iommu.c b/arch/sparc64/kernel/iommu.c
index 29af777d7ac9..070a4846c0cb 100644
--- a/arch/sparc64/kernel/iommu.c
+++ b/arch/sparc64/kernel/iommu.c
@@ -472,8 +472,7 @@ static void dma_4u_unmap_single(struct device *dev, dma_addr_t bus_addr,
spin_unlock_irqrestore(&iommu->lock, flags);
}
-#define SG_ENT_PHYS_ADDRESS(SG) \
- (__pa(page_address((SG)->page)) + (SG)->offset)
+#define SG_ENT_PHYS_ADDRESS(SG) (__pa(sg_virt((SG))))
static void fill_sg(iopte_t *iopte, struct scatterlist *sg,
int nused, int nelems,
@@ -565,9 +564,7 @@ static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist,
/* Fast path single entry scatterlists. */
if (nelems == 1) {
sglist->dma_address =
- dma_4u_map_single(dev,
- (page_address(sglist->page) +
- sglist->offset),
+ dma_4u_map_single(dev, sg_virt(sglist),
sglist->length, direction);
if (unlikely(sglist->dma_address == DMA_ERROR_CODE))
return 0;
diff --git a/arch/sparc64/kernel/iommu_common.c b/arch/sparc64/kernel/iommu_common.c
index d7ca900ec51d..78e8277df655 100644
--- a/arch/sparc64/kernel/iommu_common.c
+++ b/arch/sparc64/kernel/iommu_common.c
@@ -73,7 +73,7 @@ static int verify_one_map(struct scatterlist *dma_sg, struct scatterlist **__sg,
daddr = dma_sg->dma_address;
sglen = sg->length;
- sgaddr = (unsigned long) (page_address(sg->page) + sg->offset);
+ sgaddr = (unsigned long) sg_virt(sg);
while (dlen > 0) {
unsigned long paddr;
@@ -123,7 +123,7 @@ static int verify_one_map(struct scatterlist *dma_sg, struct scatterlist **__sg,
sg = sg_next(sg);
if (--nents <= 0)
break;
- sgaddr = (unsigned long) (page_address(sg->page) + sg->offset);
+ sgaddr = (unsigned long) sg_virt(sg);
sglen = sg->length;
}
if (dlen < 0) {
@@ -191,7 +191,7 @@ void verify_sglist(struct scatterlist *sglist, int nents, iopte_t *iopte, int np
printk("sg(%d): page_addr(%p) off(%x) length(%x) "
"dma_address[%016x] dma_length[%016x]\n",
i,
- page_address(sg->page), sg->offset,
+ page_address(sg_page(sg)), sg->offset,
sg->length,
sg->dma_address, sg->dma_length);
}
@@ -207,15 +207,14 @@ unsigned long prepare_sg(struct scatterlist *sg, int nents)
unsigned long prev;
u32 dent_addr, dent_len;
- prev = (unsigned long) (page_address(sg->page) + sg->offset);
+ prev = (unsigned long) sg_virt(sg);
prev += (unsigned long) (dent_len = sg->length);
- dent_addr = (u32) ((unsigned long)(page_address(sg->page) + sg->offset)
- & (IO_PAGE_SIZE - 1UL));
+ dent_addr = (u32) ((unsigned long)(sg_virt(sg)) & (IO_PAGE_SIZE - 1UL));
while (--nents) {
unsigned long addr;
sg = sg_next(sg);
- addr = (unsigned long) (page_address(sg->page) + sg->offset);
+ addr = (unsigned long) sg_virt(sg);
if (! VCONTIG(prev, addr)) {
dma_sg->dma_address = dent_addr;
dma_sg->dma_length = dent_len;
diff --git a/arch/sparc64/kernel/ldc.c b/arch/sparc64/kernel/ldc.c
index 85a2be0b0962..c8313cb60f0a 100644
--- a/arch/sparc64/kernel/ldc.c
+++ b/arch/sparc64/kernel/ldc.c
@@ -2057,7 +2057,7 @@ static void fill_cookies(struct cookie_state *sp, unsigned long pa,
static int sg_count_one(struct scatterlist *sg)
{
- unsigned long base = page_to_pfn(sg->page) << PAGE_SHIFT;
+ unsigned long base = page_to_pfn(sg_page(sg)) << PAGE_SHIFT;
long len = sg->length;
if ((sg->offset | len) & (8UL - 1))
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index fe46ace3e59f..8c4875bdb4a8 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -365,8 +365,7 @@ static void dma_4v_unmap_single(struct device *dev, dma_addr_t bus_addr,
spin_unlock_irqrestore(&iommu->lock, flags);
}
-#define SG_ENT_PHYS_ADDRESS(SG) \
- (__pa(page_address((SG)->page)) + (SG)->offset)
+#define SG_ENT_PHYS_ADDRESS(SG) (__pa(sg_virt((SG))))
static long fill_sg(long entry, struct device *dev,
struct scatterlist *sg,
@@ -477,9 +476,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist,
/* Fast path single entry scatterlists. */
if (nelems == 1) {
sglist->dma_address =
- dma_4v_map_single(dev,
- (page_address(sglist->page) +
- sglist->offset),
+ dma_4v_map_single(dev, sg_virt(sglist),
sglist->length, direction);
if (unlikely(sglist->dma_address == DMA_ERROR_CODE))
return 0;
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 5098f58063a5..1a20fe31338b 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -411,8 +411,10 @@ static int calgary_nontranslate_map_sg(struct device* dev,
int i;
for_each_sg(sg, s, nelems, i) {
- BUG_ON(!s->page);
- s->dma_address = virt_to_bus(page_address(s->page) +s->offset);
+ struct page *p = sg_page(s);
+
+ BUG_ON(!p);
+ s->dma_address = virt_to_bus(sg_virt(s));
s->dma_length = s->length;
}
return nelems;
@@ -432,9 +434,9 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg,
return calgary_nontranslate_map_sg(dev, sg, nelems, direction);
for_each_sg(sg, s, nelems, i) {
- BUG_ON(!s->page);
+ BUG_ON(!sg_page(s));
- vaddr = (unsigned long)page_address(s->page) + s->offset;
+ vaddr = (unsigned long) sg_virt(s);
npages = num_dma_pages(vaddr, s->length);
entry = iommu_range_alloc(tbl, npages);
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 5cdfab65e93f..c56e9ee64964 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -302,7 +302,7 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg,
#endif
for_each_sg(sg, s, nents, i) {
- unsigned long addr = page_to_phys(s->page) + s->offset;
+ unsigned long addr = sg_phys(s);
if (nonforced_iommu(dev, addr, s->length)) {
addr = dma_map_area(dev, addr, s->length, dir);
if (addr == bad_dma_address) {
@@ -397,7 +397,7 @@ static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
start_sg = sgmap = sg;
ps = NULL; /* shut up gcc */
for_each_sg(sg, s, nents, i) {
- dma_addr_t addr = page_to_phys(s->page) + s->offset;
+ dma_addr_t addr = sg_phys(s);
s->dma_address = addr;
BUG_ON(s->length == 0);
diff --git a/arch/x86/kernel/pci-nommu_64.c b/arch/x86/kernel/pci-nommu_64.c
index e85d4360360c..faf70bdca335 100644
--- a/arch/x86/kernel/pci-nommu_64.c
+++ b/arch/x86/kernel/pci-nommu_64.c
@@ -62,8 +62,8 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg,
int i;
for_each_sg(sg, s, nents, i) {
- BUG_ON(!s->page);
- s->dma_address = virt_to_bus(page_address(s->page) +s->offset);
+ BUG_ON(!sg_page(s));
+ s->dma_address = virt_to_bus(sg_virt(s));
if (!check_addr("map_sg", hwdev, s->dma_address, s->length))
return 0;
s->dma_length = s->length;