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Merge branch 'sg' of git://git.kernel.dk/linux-2.6-block 

* 'sg' of git://git.kernel.dk/linux-2.6-block:
  Add CONFIG_DEBUG_SG sg validation
  Change table chaining layout
  Update arch/ to use sg helpers
  Update swiotlb to use sg helpers
  Update net/ to use sg helpers
  Update fs/ to use sg helpers
  [SG] Update drivers to use sg helpers
  [SG] Update crypto/ to sg helpers
  [SG] Update block layer to use sg helpers
  [SG] Add helpers for manipulating SG entries
This commit is contained in:
Linus Torvalds 2007-10-22 19:11:06 -07:00
parent e38f981758 d6ec084200
commit 69450bb5eb
151 changed files with 671 additions and 449 deletions
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2
arch/alpha/kernel/pci_iommu.c
View File

@ -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

2
arch/arm/common/dmabounce.c
View File

@ -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;

3
arch/blackfin/kernel/dma-mapping.c
View File

@ -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) +

2
arch/ia64/hp/common/sba_iommu.c
View File

@ -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;

4
arch/ia64/hp/sim/simscsi.c
View File

@ -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;
}
}

2
arch/ia64/sn/pci/pci_dma.c
View File

@ -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))
/**

2
arch/m68k/kernel/dma.c
View File

@ -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;

16
arch/mips/mm/dma-default.c
View File

@ -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);
}

3
arch/powerpc/kernel/dma_64.c
View File

@ -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;
}

3
arch/powerpc/kernel/ibmebus.c
View File

@ -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;
}

2
arch/powerpc/kernel/iommu.c
View File

@ -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);

5
arch/powerpc/platforms/ps3/system-bus.c
View File

@ -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",

17
arch/sparc/kernel/ioport.c
View File

@ -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);
}
}

2
arch/sparc/mm/io-unit.c
View File

@ -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);
}

8
arch/sparc/mm/iommu.c
View File

@ -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);
}

2
arch/sparc/mm/sun4c.c
View File

@ -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);
}

7
arch/sparc64/kernel/iommu.c
View File

@ -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;

13
arch/sparc64/kernel/iommu_common.c
View File

@ -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;

2
arch/sparc64/kernel/ldc.c
View File

@ -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))

7
arch/sparc64/kernel/pci_sun4v.c
View File

@ -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;

2
arch/um/drivers/ubd_kern.c
View File

@ -1115,7 +1115,7 @@ static void do_ubd_request(struct request_queue *q)
}
prepare_request(req, io_req,
(unsigned long long) req->sector << 9,
sg->offset, sg->length, sg->page);
sg->offset, sg->length, sg_page(sg));
last_sectors = sg->length >> 9;
n = os_write_file(thread_fd, &io_req,

10
arch/x86/kernel/pci-calgary_64.c
View File

@ -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);

4
arch/x86/kernel/pci-gart_64.c
View File

@ -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);

4
arch/x86/kernel/pci-nommu_64.c
View File

@ -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;

8
block/ll_rw_blk.c
View File

@ -1354,8 +1354,9 @@ new_segment:
else
sg = sg_next(sg);
memset(sg, 0, sizeof(*sg));
sg->page = bvec->bv_page;
sg_dma_len(sg) = 0;
sg_dma_address(sg) = 0;
sg_set_page(sg, bvec->bv_page);
sg->length = nbytes;
sg->offset = bvec->bv_offset;
nsegs++;
@ -1363,6 +1364,9 @@ new_segment:
bvprv = bvec;
} /* segments in rq */
if (sg)
__sg_mark_end(sg);
return nsegs;
}

2
crypto/digest.c
View File

@ -41,7 +41,7 @@ static int update2(struct hash_desc *desc,
return 0;
for (;;) {
struct page *pg = sg->page;
struct page *pg = sg_page(sg);
unsigned int offset = sg->offset;
unsigned int l = sg->length;

3
crypto/hmac.c
View File

@ -159,7 +159,8 @@ static int hmac_digest(struct hash_desc *pdesc, struct scatterlist *sg,
desc.flags = pdesc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
sg_set_buf(sg1, ipad, bs);
sg1[1].page = (void *)sg;
sg_set_page(&sg[1], (void *) sg);
sg1[1].length = 0;
sg_set_buf(sg2, opad, bs + ds);

2
crypto/scatterwalk.c
View File

@ -54,7 +54,7 @@ static void scatterwalk_pagedone(struct scatter_walk *walk, int out,
if (out) {
struct page *page;
page = walk->sg->page + ((walk->offset - 1) >> PAGE_SHIFT);
page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT);
flush_dcache_page(page);
}

6
crypto/scatterwalk.h
View File

@ -22,13 +22,13 @@
static inline struct scatterlist *scatterwalk_sg_next(struct scatterlist *sg)
{
return (++sg)->length ? sg : (void *)sg->page;
return (++sg)->length ? sg : (void *) sg_page(sg);
}
static inline unsigned long scatterwalk_samebuf(struct scatter_walk *walk_in,
struct scatter_walk *walk_out)
{
return !(((walk_in->sg->page - walk_out->sg->page) << PAGE_SHIFT) +
return !(((sg_page(walk_in->sg) - sg_page(walk_out->sg)) << PAGE_SHIFT) +
(int)(walk_in->offset - walk_out->offset));
}
@ -60,7 +60,7 @@ static inline unsigned int scatterwalk_aligned(struct scatter_walk *walk,
static inline struct page *scatterwalk_page(struct scatter_walk *walk)
{
return walk->sg->page + (walk->offset >> PAGE_SHIFT);
return sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);
}
static inline void scatterwalk_unmap(void *vaddr, int out)

4
crypto/tcrypt.c
View File

@ -317,7 +317,7 @@ static void test_cipher(char *algo, int enc,
goto out;
}
q = kmap(sg[0].page) + sg[0].offset;
q = kmap(sg_page(&sg[0])) + sg[0].offset;
hexdump(q, cipher_tv[i].rlen);
printk("%s\n",
@ -390,7 +390,7 @@ static void test_cipher(char *algo, int enc,
temp = 0;
for (k = 0; k < cipher_tv[i].np; k++) {
printk("page %u\n", k);
q = kmap(sg[k].page) + sg[k].offset;
q = kmap(sg_page(&sg[k])) + sg[k].offset;
hexdump(q, cipher_tv[i].tap[k]);
printk("%s\n",
memcmp(q, cipher_tv[i].result + temp,

2
crypto/xcbc.c
View File

@ -120,7 +120,7 @@ static int crypto_xcbc_digest_update2(struct hash_desc *pdesc,
do {
struct page *pg = sg[i].page;
struct page *pg = sg_page(&sg[i]);
unsigned int offset = sg[i].offset;
unsigned int slen = sg[i].length;

10
drivers/ata/libata-core.c
View File

@ -4296,7 +4296,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc)
sg_last(sg, qc->orig_n_elem)->length += qc->pad_len;
if (pad_buf) {
struct scatterlist *psg = &qc->pad_sgent;
void *addr = kmap_atomic(psg->page, KM_IRQ0);
void *addr = kmap_atomic(sg_page(psg), KM_IRQ0);
memcpy(addr + psg->offset, pad_buf, qc->pad_len);
kunmap_atomic(addr, KM_IRQ0);
}
@ -4686,11 +4686,11 @@ static int ata_sg_setup(struct ata_queued_cmd *qc)
* data in this function or read data in ata_sg_clean.
*/
offset = lsg->offset + lsg->length - qc->pad_len;
psg->page = nth_page(lsg->page, offset >> PAGE_SHIFT);
sg_set_page(psg, nth_page(sg_page(lsg), offset >> PAGE_SHIFT));
psg->offset = offset_in_page(offset);
if (qc->tf.flags & ATA_TFLAG_WRITE) {
void *addr = kmap_atomic(psg->page, KM_IRQ0);
void *addr = kmap_atomic(sg_page(psg), KM_IRQ0);
memcpy(pad_buf, addr + psg->offset, qc->pad_len);
kunmap_atomic(addr, KM_IRQ0);
}
@ -4836,7 +4836,7 @@ static void ata_pio_sector(struct ata_queued_cmd *qc)
if (qc->curbytes == qc->nbytes - qc->sect_size)
ap->hsm_task_state = HSM_ST_LAST;
page = qc->cursg->page;
page = sg_page(qc->cursg);
offset = qc->cursg->offset + qc->cursg_ofs;
/* get the current page and offset */
@ -4988,7 +4988,7 @@ next_sg:
sg = qc->cursg;
page = sg->page;
page = sg_page(sg);
offset = sg->offset + qc->cursg_ofs;
/* get the current page and offset */

2
drivers/ata/libata-scsi.c
View File

@ -1544,7 +1544,7 @@ static unsigned int ata_scsi_rbuf_get(struct scsi_cmnd *cmd, u8 **buf_out)
struct scatterlist *sg = scsi_sglist(cmd);
if (sg) {
buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
buflen = sg->length;
} else {
buf = NULL;

2
drivers/block/DAC960.c
View File

@ -345,6 +345,7 @@ static bool DAC960_CreateAuxiliaryStructures(DAC960_Controller_T *Controller)
Command->V1.ScatterGatherList =
(DAC960_V1_ScatterGatherSegment_T *)ScatterGatherCPU;
Command->V1.ScatterGatherListDMA = ScatterGatherDMA;
sg_init_table(Command->cmd_sglist, DAC960_V1_ScatterGatherLimit);
} else {
Command->cmd_sglist = Command->V2.ScatterList;
Command->V2.ScatterGatherList =
@ -353,6 +354,7 @@ static bool DAC960_CreateAuxiliaryStructures(DAC960_Controller_T *Controller)
Command->V2.RequestSense =
(DAC960_SCSI_RequestSense_T *)RequestSenseCPU;
Command->V2.RequestSenseDMA = RequestSenseDMA;
sg_init_table(Command->cmd_sglist, DAC960_V2_ScatterGatherLimit);
}
}
return true;

4
drivers/block/cciss.c
View File

@ -2610,7 +2610,7 @@ static void do_cciss_request(struct request_queue *q)
(int)creq->nr_sectors);
#endif /* CCISS_DEBUG */
memset(tmp_sg, 0, sizeof(tmp_sg));
sg_init_table(tmp_sg, MAXSGENTRIES);
seg = blk_rq_map_sg(q, creq, tmp_sg);
/* get the DMA records for the setup */
@ -2621,7 +2621,7 @@ static void do_cciss_request(struct request_queue *q)
for (i = 0; i < seg; i++) {
c->SG[i].Len = tmp_sg[i].length;
temp64.val = (__u64) pci_map_page(h->pdev, tmp_sg[i].page,
temp64.val = (__u64) pci_map_page(h->pdev, sg_page(&tmp_sg[i]),
tmp_sg[i].offset,
tmp_sg[i].length, dir);
c->SG[i].Addr.lower = temp64.val32.lower;

3
drivers/block/cpqarray.c
View File

@ -918,6 +918,7 @@ queue_next:
DBGPX(
printk("sector=%d, nr_sectors=%d\n", creq->sector, creq->nr_sectors);
);
sg_init_table(tmp_sg, SG_MAX);
seg = blk_rq_map_sg(q, creq, tmp_sg);
/* Now do all the DMA Mappings */
@ -929,7 +930,7 @@ DBGPX(
{
c->req.sg[i].size = tmp_sg[i].length;
c->req.sg[i].addr = (__u32) pci_map_page(h->pci_dev,
tmp_sg[i].page,
sg_page(&tmp_sg[i]),
tmp_sg[i].offset,
tmp_sg[i].length, dir);
}

12
drivers/block/cryptoloop.c
View File

@ -26,6 +26,7 @@
#include <linux/crypto.h>
#include <linux/blkdev.h>
#include <linux/loop.h>
#include <linux/scatterlist.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
@ -119,14 +120,17 @@ cryptoloop_transfer(struct loop_device *lo, int cmd,
.tfm = tfm,
.flags = CRYPTO_TFM_REQ_MAY_SLEEP,
};
struct scatterlist sg_out = { NULL, };
struct scatterlist sg_in = { NULL, };
struct scatterlist sg_out;
struct scatterlist sg_in;
encdec_cbc_t encdecfunc;
struct page *in_page, *out_page;
unsigned in_offs, out_offs;
int err;
sg_init_table(&sg_out, 1);
sg_init_table(&sg_in, 1);
if (cmd == READ) {
in_page = raw_page;
in_offs = raw_off;
@ -146,11 +150,11 @@ cryptoloop_transfer(struct loop_device *lo, int cmd,
u32 iv[4] = { 0, };
iv[0] = cpu_to_le32(IV & 0xffffffff);
sg_in.page = in_page;
sg_set_page(&sg_in, in_page);
sg_in.offset = in_offs;
sg_in.length = sz;
sg_out.page = out_page;
sg_set_page(&sg_out, out_page);
sg_out.offset = out_offs;
sg_out.length = sz;

1
drivers/block/sunvdc.c
View File

@ -388,6 +388,7 @@ static int __send_request(struct request *req)
op = VD_OP_BWRITE;
}
sg_init_table(sg, port->ring_cookies);
nsg = blk_rq_map_sg(req->q, req, sg);
len = 0;

1
drivers/block/sx8.c
View File

@ -522,6 +522,7 @@ static struct carm_request *carm_get_request(struct carm_host *host)
host->n_msgs++;
assert(host->n_msgs <= CARM_MAX_REQ);
sg_init_table(crq->sg, CARM_MAX_REQ_SG);
return crq;
}

11
drivers/block/ub.c
View File

@ -25,6 +25,7 @@
#include <linux/usb_usual.h>
#include <linux/blkdev.h>
#include <linux/timer.h>
#include <linux/scatterlist.h>
#include <scsi/scsi.h>
#define DRV_NAME "ub"
@ -656,6 +657,7 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq)
if ((cmd = ub_get_cmd(lun)) == NULL)
return -1;
memset(cmd, 0, sizeof(struct ub_scsi_cmd));
sg_init_table(cmd->sgv, UB_MAX_REQ_SG);
blkdev_dequeue_request(rq);
@ -1309,9 +1311,8 @@ static void ub_data_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
else
pipe = sc->send_bulk_pipe;
sc->last_pipe = pipe;
usb_fill_bulk_urb(&sc->work_urb, sc->dev, pipe,
page_address(sg->page) + sg->offset, sg->length,
ub_urb_complete, sc);
usb_fill_bulk_urb(&sc->work_urb, sc->dev, pipe, sg_virt(sg),
sg->length, ub_urb_complete, sc);
sc->work_urb.actual_length = 0;
sc->work_urb.error_count = 0;
sc->work_urb.status = 0;
@ -1427,7 +1428,7 @@ static void ub_state_sense(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
scmd->state = UB_CMDST_INIT;
scmd->nsg = 1;
sg = &scmd->sgv[0];
sg->page = virt_to_page(sc->top_sense);
sg_set_page(sg, virt_to_page(sc->top_sense));
sg->offset = (unsigned long)sc->top_sense & (PAGE_SIZE-1);
sg->length = UB_SENSE_SIZE;
scmd->len = UB_SENSE_SIZE;
@ -1863,7 +1864,7 @@ static int ub_sync_read_cap(struct ub_dev *sc, struct ub_lun *lun,
cmd->state = UB_CMDST_INIT;
cmd->nsg = 1;
sg = &cmd->sgv[0];
sg->page = virt_to_page(p);
sg_set_page(sg, virt_to_page(p));
sg->offset = (unsigned long)p & (PAGE_SIZE-1);
sg->length = 8;
cmd->len = 8;

2
drivers/block/viodasd.c
View File

@ -41,6 +41,7 @@
#include <linux/dma-mapping.h>
#include <linux/completion.h>
#include <linux/device.h>
#include <linux/scatterlist.h>
#include <asm/uaccess.h>
#include <asm/vio.h>
@ -270,6 +271,7 @@ static int send_request(struct request *req)
d = req->rq_disk->private_data;
/* Now build the scatter-gather list */
sg_init_table(sg, VIOMAXBLOCKDMA);
nsg = blk_rq_map_sg(req->q, req, sg);
nsg = dma_map_sg(d->dev, sg, nsg, direction);

4
drivers/ide/cris/ide-cris.c
View File

@ -935,11 +935,11 @@ static int cris_ide_build_dmatable (ide_drive_t *drive)
* than two possibly non-adjacent physical 4kB pages.
*/
/* group sequential buffers into one large buffer */
addr = page_to_phys(sg->page) + sg->offset;
addr = sg_phys(sg);
size = sg_dma_len(sg);
while (--i) {
sg = sg_next(sg);
if ((addr + size) != page_to_phys(sg->page) + sg->offset)
if ((addr + size) != sg_phys(sg))
break;
size += sg_dma_len(sg);
}

4
drivers/ide/ide-probe.c
View File

@ -1317,12 +1317,14 @@ static int hwif_init(ide_hwif_t *hwif)
if (!hwif->sg_max_nents)
hwif->sg_max_nents = PRD_ENTRIES;
hwif->sg_table = kzalloc(sizeof(struct scatterlist)*hwif->sg_max_nents,
hwif->sg_table = kmalloc(sizeof(struct scatterlist)*hwif->sg_max_nents,
GFP_KERNEL);
if (!hwif->sg_table) {
printk(KERN_ERR "%s: unable to allocate SG table.\n", hwif->name);
goto out;
}
sg_init_table(hwif->sg_table, hwif->sg_max_nents);
if (init_irq(hwif) == 0)
goto done;

2
drivers/ide/ide-taskfile.c
View File

@ -261,7 +261,7 @@ static void ide_pio_sector(ide_drive_t *drive, unsigned int write)
hwif->cursg = sg;
}
page = cursg->page;
page = sg_page(cursg);
offset = cursg->offset + hwif->cursg_ofs * SECTOR_SIZE;
/* get the current page and offset */

6
drivers/ide/mips/au1xxx-ide.c
View File

@ -276,8 +276,7 @@ static int auide_build_dmatable(ide_drive_t *drive)
if (iswrite) {
if(!put_source_flags(ahwif->tx_chan,
(void*)(page_address(sg->page)
+ sg->offset),
(void*) sg_virt(sg),
tc, flags)) {
printk(KERN_ERR "%s failed %d\n",
__FUNCTION__, __LINE__);
@ -285,8 +284,7 @@ static int auide_build_dmatable(ide_drive_t *drive)
} else
{
if(!put_dest_flags(ahwif->rx_chan,
(void*)(page_address(sg->page)
+ sg->offset),
(void*) sg_virt(sg),
tc, flags)) {
printk(KERN_ERR "%s failed %d\n",
__FUNCTION__, __LINE__);

2
drivers/ieee1394/dma.c
View File

@ -111,7 +111,7 @@ int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes,
unsigned long va =
(unsigned long)dma->kvirt + (i << PAGE_SHIFT);
dma->sglist[i].page = vmalloc_to_page((void *)va);
sg_set_page(&dma->sglist[i], vmalloc_to_page((void *)va));
dma->sglist[i].length = PAGE_SIZE;
}

2
drivers/ieee1394/sbp2.c
View File

@ -1466,7 +1466,7 @@ static void sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb,
cmd->dma_size = sgpnt[0].length;
cmd->dma_type = CMD_DMA_PAGE;
cmd->cmd_dma = dma_map_page(hi->host->device.parent,
sgpnt[0].page, sgpnt[0].offset,
sg_page(&sgpnt[0]), sgpnt[0].offset,
cmd->dma_size, cmd->dma_dir);
orb->data_descriptor_lo = cmd->cmd_dma;

11
drivers/infiniband/core/umem.c
View File

@ -55,9 +55,11 @@ static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int d
ib_dma_unmap_sg(dev, chunk->page_list,
chunk->nents, DMA_BIDIRECTIONAL);
for (i = 0; i < chunk->nents; ++i) {
struct page *page = sg_page(&chunk->page_list[i]);
if (umem->writable && dirty)
set_page_dirty_lock(chunk->page_list[i].page);
put_page(chunk->page_list[i].page);
set_page_dirty_lock(page);
put_page(page);
}
kfree(chunk);
@ -164,11 +166,12 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
}
chunk->nents = min_t(int, ret, IB_UMEM_MAX_PAGE_CHUNK);
sg_init_table(chunk->page_list, chunk->nents);
for (i = 0; i < chunk->nents; ++i) {
if (vma_list &&
!is_vm_hugetlb_page(vma_list[i + off]))
umem->hugetlb = 0;
chunk->page_list[i].page = page_list[i + off];
sg_set_page(&chunk->page_list[i], page_list[i + off]);
chunk->page_list[i].offset = 0;
chunk->page_list[i].length = PAGE_SIZE;
}
@ -179,7 +182,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
DMA_BIDIRECTIONAL);
if (chunk->nmap <= 0) {
for (i = 0; i < chunk->nents; ++i)
put_page(chunk->page_list[i].page);
put_page(sg_page(&chunk->page_list[i]));
kfree(chunk);
ret = -ENOMEM;

4
drivers/infiniband/hw/ipath/ipath_dma.c
View File

@ -108,7 +108,7 @@ static int ipath_map_sg(struct ib_device *dev, struct scatterlist *sgl,
BUG_ON(!valid_dma_direction(direction));
for_each_sg(sgl, sg, nents, i) {
addr = (u64) page_address(sg->page);
addr = (u64) page_address(sg_page(sg));
/* TODO: handle highmem pages */
if (!addr) {
ret = 0;
@ -127,7 +127,7 @@ static void ipath_unmap_sg(struct ib_device *dev,
static u64 ipath_sg_dma_address(struct ib_device *dev, struct scatterlist *sg)
{
u64 addr = (u64) page_address(sg->page);
u64 addr = (u64) page_address(sg_page(sg));
if (addr)
addr += sg->offset;

2
drivers/infiniband/hw/ipath/ipath_mr.c
View File

@ -225,7 +225,7 @@ struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
for (i = 0; i < chunk->nents; i++) {
void *vaddr;
vaddr = page_address(chunk->page_list[i].page);
vaddr = page_address(sg_page(&chunk->page_list[i]));
if (!vaddr) {
ret = ERR_PTR(-EINVAL);
goto bail;

24
drivers/infiniband/hw/mthca/mthca_memfree.c
View File

@ -71,7 +71,7 @@ static void mthca_free_icm_pages(struct mthca_dev *dev, struct mthca_icm_chunk *
PCI_DMA_BIDIRECTIONAL);
for (i = 0; i < chunk->npages; ++i)
__free_pages(chunk->mem[i].page,
__free_pages(sg_page(&chunk->mem[i]),
get_order(chunk->mem[i].length));
}
@ -81,7 +81,7 @@ static void mthca_free_icm_coherent(struct mthca_dev *dev, struct mthca_icm_chun
for (i = 0; i < chunk->npages; ++i) {
dma_free_coherent(&dev->pdev->dev, chunk->mem[i].length,
lowmem_page_address(chunk->mem[i].page),
lowmem_page_address(sg_page(&chunk->mem[i])),
sg_dma_address(&chunk->mem[i]));
}
}
@ -107,10 +107,13 @@ void mthca_free_icm(struct mthca_dev *dev, struct mthca_icm *icm, int coherent)
static int mthca_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_mask)
{
mem->page = alloc_pages(gfp_mask, order);
if (!mem->page)
struct page *page;
page = alloc_pages(gfp_mask, order);
if (!page)
return -ENOMEM;
sg_set_page(mem, page);
mem->length = PAGE_SIZE << order;
mem->offset = 0;
return 0;
@ -157,6 +160,7 @@ struct mthca_icm *mthca_alloc_icm(struct mthca_dev *dev, int npages,
if (!chunk)
goto fail;
sg_init_table(chunk->mem, MTHCA_ICM_CHUNK_LEN);
chunk->npages = 0;
chunk->nsg = 0;
list_add_tail(&chunk->list, &icm->chunk_list);
@ -304,7 +308,7 @@ void *mthca_table_find(struct mthca_icm_table *table, int obj, dma_addr_t *dma_h
* so if we found the page, dma_handle has already
* been assigned to. */
if (chunk->mem[i].length > offset) {
page = chunk->mem[i].page;
page = sg_page(&chunk->mem[i]);
goto out;
}
offset -= chunk->mem[i].length;
@ -445,6 +449,7 @@ static u64 mthca_uarc_virt(struct mthca_dev *dev, struct mthca_uar *uar, int pag
int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
struct mthca_user_db_table *db_tab, int index, u64 uaddr)
{
struct page *pages[1];
int ret = 0;
u8 status;
int i;
@ -472,16 +477,17 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
}
ret = get_user_pages(current, current->mm, uaddr & PAGE_MASK, 1, 1, 0,
&db_tab->page[i].mem.page, NULL);
pages, NULL);
if (ret < 0)
goto out;
sg_set_page(&db_tab->page[i].mem, pages[0]);
db_tab->page[i].mem.length = MTHCA_ICM_PAGE_SIZE;
db_tab->page[i].mem.offset = uaddr & ~PAGE_MASK;
ret = pci_map_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
if (ret < 0) {
put_page(db_tab->page[i].mem.page);
put_page(pages[0]);
goto out;
}
@ -491,7 +497,7 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
ret = -EINVAL;
if (ret) {
pci_unmap_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
put_page(db_tab->page[i].mem.page);
put_page(sg_page(&db_tab->page[i].mem));
goto out;
}
@ -557,7 +563,7 @@ void mthca_cleanup_user_db_tab(struct mthca_dev *dev, struct mthca_uar *uar,
if (db_tab->page[i].uvirt) {
mthca_UNMAP_ICM(dev, mthca_uarc_virt(dev, uar, i), 1, &status);
pci_unmap_sg(dev->pdev, &db_tab->page[i].mem, 1, PCI_DMA_TODEVICE);
put_page(db_tab->page[i].mem.page);
put_page(sg_page(&db_tab->page[i].mem));
}
}

8
drivers/infiniband/ulp/iser/iser_memory.c
View File

@ -131,7 +131,7 @@ static int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
p = mem;
for_each_sg(sgl, sg, data->size, i) {
from = kmap_atomic(sg->page, KM_USER0);
from = kmap_atomic(sg_page(sg), KM_USER0);
memcpy(p,
from + sg->offset,
sg->length);
@ -191,7 +191,7 @@ void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
p = mem;
for_each_sg(sgl, sg, sg_size, i) {
to = kmap_atomic(sg->page, KM_SOFTIRQ0);
to = kmap_atomic(sg_page(sg), KM_SOFTIRQ0);
memcpy(to + sg->offset,
p,
sg->length);
@ -300,7 +300,7 @@ static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data,
for_each_sg(sgl, sg, data->dma_nents, i) {
/* iser_dbg("Checking sg iobuf [%d]: phys=0x%08lX "
"offset: %ld sz: %ld\n", i,
(unsigned long)page_to_phys(sg->page),
(unsigned long)sg_phys(sg),
(unsigned long)sg->offset,
(unsigned long)sg->length); */
end_addr = ib_sg_dma_address(ibdev, sg) +
@ -336,7 +336,7 @@ static void iser_data_buf_dump(struct iser_data_buf *data,
iser_err("sg[%d] dma_addr:0x%lX page:0x%p "
"off:0x%x sz:0x%x dma_len:0x%x\n",
i, (unsigned long)ib_sg_dma_address(ibdev, sg),
sg->page, sg->offset,
sg_page(sg), sg->offset,
sg->length, ib_sg_dma_len(ibdev, sg));
}

21
drivers/md/dm-crypt.c
View File

@ -348,16 +348,17 @@ static int crypt_convert(struct crypt_config *cc,
ctx->idx_out < ctx->bio_out->bi_vcnt) {
struct bio_vec *bv_in = bio_iovec_idx(ctx->bio_in, ctx->idx_in);
struct bio_vec *bv_out = bio_iovec_idx(ctx->bio_out, ctx->idx_out);
struct scatterlist sg_in = {
.page = bv_in->bv_page,
.offset = bv_in->bv_offset + ctx->offset_in,
.length = 1 << SECTOR_SHIFT
};
struct scatterlist sg_out = {
.page = bv_out->bv_page,
.offset = bv_out->bv_offset + ctx->offset_out,
.length = 1 << SECTOR_SHIFT
};
struct scatterlist sg_in, sg_out;
sg_init_table(&sg_in, 1);
sg_set_page(&sg_in, bv_in->bv_page);
sg_in.offset = bv_in->bv_offset + ctx->offset_in;
sg_in.length = 1 << SECTOR_SHIFT;
sg_init_table(&sg_out, 1);
sg_set_page(&sg_out, bv_out->bv_page);
sg_out.offset = bv_out->bv_offset + ctx->offset_out;
sg_out.length = 1 << SECTOR_SHIFT;
ctx->offset_in += sg_in.length;
if (ctx->offset_in >= bv_in->bv_len) {

3
drivers/media/common/saa7146_core.c
View File

@ -112,12 +112,13 @@ static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages)
sglist = kcalloc(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
if (NULL == sglist)
return NULL;
sg_init_table(sglist, nr_pages);
for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {
pg = vmalloc_to_page(virt);
if (NULL == pg)
goto err;
BUG_ON(PageHighMem(pg));
sglist[i].page = pg;
sg_set_page(&sglist[i], pg);
sglist[i].length = PAGE_SIZE;
}
return sglist;

4
drivers/media/video/ivtv/ivtv-udma.c
View File

@ -63,10 +63,10 @@ int ivtv_udma_fill_sg_list (struct ivtv_user_dma *dma, struct ivtv_dma_page_info
memcpy(page_address(dma->bouncemap[map_offset]) + offset, src, len);
kunmap_atomic(src, KM_BOUNCE_READ);
local_irq_restore(flags);
dma->SGlist[map_offset].page = dma->bouncemap[map_offset];
sg_set_page(&dma->SGlist[map_offset], dma->bouncemap[map_offset]);
}
else {
dma->SGlist[map_offset].page = dma->map[map_offset];
sg_set_page(&dma->SGlist[map_offset], dma->map[map_offset]);
}
offset = 0;
map_offset++;

8
drivers/media/video/videobuf-dma-sg.c
View File

@ -60,12 +60,13 @@ videobuf_vmalloc_to_sg(unsigned char *virt, int nr_pages)
sglist = kcalloc(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
if (NULL == sglist)
return NULL;
sg_init_table(sglist, nr_pages);
for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {
pg = vmalloc_to_page(virt);
if (NULL == pg)
goto err;
BUG_ON(PageHighMem(pg));
sglist[i].page = pg;
sg_set_page(&sglist[i], pg);
sglist[i].length = PAGE_SIZE;
}
return sglist;
@ -86,13 +87,14 @@ videobuf_pages_to_sg(struct page **pages, int nr_pages, int offset)
sglist = kcalloc(nr_pages, sizeof(*sglist), GFP_KERNEL);
if (NULL == sglist)
return NULL;
sg_init_table(sglist, nr_pages);
if (NULL == pages[0])
goto nopage;
if (PageHighMem(pages[0]))
/* DMA to highmem pages might not work */
goto highmem;
sglist[0].page = pages[0];
sg_set_page(&sglist[0], pages[0]);
sglist[0].offset = offset;
sglist[0].length = PAGE_SIZE - offset;
for (i = 1; i < nr_pages; i++) {
@ -100,7 +102,7 @@ videobuf_pages_to_sg(struct page **pages, int nr_pages, int offset)
goto nopage;
if (PageHighMem(pages[i]))
goto highmem;
sglist[i].page = pages[i];
sg_set_page(&sglist[i], pages[i]);
sglist[i].length = PAGE_SIZE;
}
return sglist;

15
drivers/mmc/card/queue.c
View File

@ -13,6 +13,7 @@
#include <linux/blkdev.h>
#include <linux/freezer.h>
#include <linux/kthread.h>
#include <linux/scatterlist.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
@ -153,19 +154,21 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
blk_queue_max_hw_segments(mq->queue, bouncesz / 512);
blk_queue_max_segment_size(mq->queue, bouncesz);
mq->sg = kzalloc(sizeof(struct scatterlist),
mq->sg = kmalloc(sizeof(struct scatterlist),
GFP_KERNEL);
if (!mq->sg) {
ret = -ENOMEM;
goto cleanup_queue;
}
sg_init_table(mq->sg, 1);
mq->bounce_sg = kzalloc(sizeof(struct scatterlist) *
mq->bounce_sg = kmalloc(sizeof(struct scatterlist) *
bouncesz / 512, GFP_KERNEL);
if (!mq->bounce_sg) {
ret = -ENOMEM;
goto cleanup_queue;
}
sg_init_table(mq->bounce_sg, bouncesz / 512);
}
}
#endif
@ -302,12 +305,12 @@ static void copy_sg(struct scatterlist *dst, unsigned int dst_len,
BUG_ON(dst_len == 0);
if (dst_size == 0) {
dst_buf = page_address(dst->page) + dst->offset;
dst_buf = sg_virt(dst);
dst_size = dst->length;
}
if (src_size == 0) {
src_buf = page_address(src->page) + src->offset;
src_buf = sg_virt(dst);
src_size = src->length;
}
@ -353,9 +356,7 @@ unsigned int mmc_queue_map_sg(struct mmc_queue *mq)
return 1;
}
mq->sg[0].page = virt_to_page(mq->bounce_buf);
mq->sg[0].offset = offset_in_page(mq->bounce_buf);
mq->sg[0].length = 0;
sg_init_one(mq->sg, mq->bounce_buf, 0);
while (sg_len) {
mq->sg[0].length += mq->bounce_sg[sg_len - 1].length;

8
drivers/mmc/host/at91_mci.c
View File

@ -149,7 +149,7 @@ static inline void at91_mci_sg_to_dma(struct at91mci_host *host, struct mmc_data
sg = &data->sg[i];
sgbuffer = kmap_atomic(sg->page, KM_BIO_SRC_IRQ) + sg->offset;
sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
amount = min(size, sg->length);
size -= amount;
@ -226,7 +226,7 @@ static void at91_mci_pre_dma_read(struct at91mci_host *host)
sg = &data->sg[host->transfer_index++];
pr_debug("sg = %p\n", sg);
sg->dma_address = dma_map_page(NULL, sg->page, sg->offset, sg->length, DMA_FROM_DEVICE);
sg->dma_address = dma_map_page(NULL, sg_page(sg), sg->offset, sg->length, DMA_FROM_DEVICE);
pr_debug("dma address = %08X, length = %d\n", sg->dma_address, sg->length);
@ -283,7 +283,7 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
int index;
/* Swap the contents of the buffer */
buffer = kmap_atomic(sg->page, KM_BIO_SRC_IRQ) + sg->offset;
buffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
pr_debug("buffer = %p, length = %d\n", buffer, sg->length);
for (index = 0; index < (sg->length / 4); index++)
@ -292,7 +292,7 @@ static void at91_mci_post_dma_read(struct at91mci_host *host)
kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
}
flush_dcache_page(sg->page);
flush_dcache_page(sg_page(sg));
}
/* Is there another transfer to trigger? */

11
drivers/mmc/host/au1xmmc.c
View File

@ -340,7 +340,7 @@ static void au1xmmc_send_pio(struct au1xmmc_host *host)
/* This is the pointer to the data buffer */
sg = &data->sg[host->pio.index];
sg_ptr = page_address(sg->page) + sg->offset + host->pio.offset;
sg_ptr = sg_virt(sg) + host->pio.offset;
/* This is the space left inside the buffer */
sg_len = data->sg[host->pio.index].length - host->pio.offset;
@ -400,7 +400,7 @@ static void au1xmmc_receive_pio(struct au1xmmc_host *host)
if (host->pio.index < host->dma.len) {
sg = &data->sg[host->pio.index];
sg_ptr = page_address(sg->page) + sg->offset + host->pio.offset;
sg_ptr = sg_virt(sg) + host->pio.offset;
/* This is the space left inside the buffer */
sg_len = sg_dma_len(&data->sg[host->pio.index]) - host->pio.offset;
@ -613,14 +613,11 @@ au1xmmc_prepare_data(struct au1xmmc_host *host, struct mmc_data *data)
if (host->flags & HOST_F_XMIT){
ret = au1xxx_dbdma_put_source_flags(channel,
(void *) (page_address(sg->page) +
sg->offset),
len, flags);
(void *) sg_virt(sg), len, flags);
}
else {
ret = au1xxx_dbdma_put_dest_flags(channel,
(void *) (page_address(sg->page) +
sg->offset),
(void *) sg_virt(sg),
len, flags);
}

2
drivers/mmc/host/imxmmc.c
View File

@ -262,7 +262,7 @@ static void imxmci_setup_data(struct imxmci_host *host, struct mmc_data *data)
}
/* Convert back to virtual address */
host->data_ptr = (u16*)(page_address(data->sg->page) + data->sg->offset);
host->data_ptr = (u16*)sg_virt(sg);
host->data_cnt = 0;
clear_bit(IMXMCI_PEND_DMA_DATA_b, &host->pending_events);

8
drivers/mmc/host/mmc_spi.c
View File

@ -813,7 +813,7 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
&& dir == DMA_FROM_DEVICE)
dir = DMA_BIDIRECTIONAL;
dma_addr = dma_map_page(dma_dev, sg->page, 0,
dma_addr = dma_map_page(dma_dev, sg_page(sg), 0,
PAGE_SIZE, dir);
if (direction == DMA_TO_DEVICE)
t->tx_dma = dma_addr + sg->offset;
@ -822,7 +822,7 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
}
/* allow pio too; we don't allow highmem */
kmap_addr = kmap(sg->page);
kmap_addr = kmap(sg_page(sg));
if (direction == DMA_TO_DEVICE)
t->tx_buf = kmap_addr + sg->offset;
else
@ -855,8 +855,8 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
/* discard mappings */
if (direction == DMA_FROM_DEVICE)
flush_kernel_dcache_page(sg->page);
kunmap(sg->page);
flush_kernel_dcache_page(sg_page(sg));
kunmap(sg_page(sg));
if (dma_dev)
dma_unmap_page(dma_dev, dma_addr, PAGE_SIZE, dir);

4
drivers/mmc/host/omap.c
View File

@ -24,10 +24,10 @@
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/clk.h>
#include <linux/scatterlist.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/scatterlist.h>
#include <asm/mach-types.h>
#include <asm/arch/board.h>
@ -383,7 +383,7 @@ mmc_omap_sg_to_buf(struct mmc_omap_host *host)
sg = host->data->sg + host->sg_idx;
host->buffer_bytes_left = sg->length;
host->buffer = page_address(sg->page) + sg->offset;
host->buffer = sg_virt(sg);
if (host->buffer_bytes_left > host->total_bytes_left)
host->buffer_bytes_left = host->total_bytes_left;
}

2
drivers/mmc/host/sdhci.c
View File

@ -231,7 +231,7 @@ static void sdhci_deactivate_led(struct sdhci_host *host)
static inline char* sdhci_sg_to_buffer(struct sdhci_host* host)
{
return page_address(host->cur_sg->page) + host->cur_sg->offset;
return sg_virt(host->cur_sg);
}
static inline int sdhci_next_sg(struct sdhci_host* host)

8
drivers/mmc/host/tifm_sd.c
View File

@ -192,7 +192,7 @@ static void tifm_sd_transfer_data(struct tifm_sd *host)
}
off = sg[host->sg_pos].offset + host->block_pos;
pg = nth_page(sg[host->sg_pos].page, off >> PAGE_SHIFT);
pg = nth_page(sg_page(&sg[host->sg_pos]), off >> PAGE_SHIFT);
p_off = offset_in_page(off);
p_cnt = PAGE_SIZE - p_off;
p_cnt = min(p_cnt, cnt);
@ -241,18 +241,18 @@ static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data)
}
off = sg[host->sg_pos].offset + host->block_pos;
pg = nth_page(sg[host->sg_pos].page, off >> PAGE_SHIFT);
pg = nth_page(sg_page(&sg[host->sg_pos]), off >> PAGE_SHIFT);
p_off = offset_in_page(off);
p_cnt = PAGE_SIZE - p_off;
p_cnt = min(p_cnt, cnt);
p_cnt = min(p_cnt, t_size);
if (r_data->flags & MMC_DATA_WRITE)
tifm_sd_copy_page(host->bounce_buf.page,
tifm_sd_copy_page(sg_page(&host->bounce_buf),
r_data->blksz - t_size,
pg, p_off, p_cnt);
else if (r_data->flags & MMC_DATA_READ)
tifm_sd_copy_page(pg, p_off, host->bounce_buf.page,
tifm_sd_copy_page(pg, p_off, sg_page(&host->bounce_buf),
r_data->blksz - t_size, p_cnt);
t_size -= p_cnt;

6
drivers/mmc/host/wbsd.c
View File

@ -269,7 +269,7 @@ static inline int wbsd_next_sg(struct wbsd_host *host)
static inline char *wbsd_sg_to_buffer(struct wbsd_host *host)
{
return page_address(host->cur_sg->page) + host->cur_sg->offset;
return sg_virt(host->cur_sg);
}
static inline void wbsd_sg_to_dma(struct wbsd_host *host, struct mmc_data *data)
@ -283,7 +283,7 @@ static inline void wbsd_sg_to_dma(struct wbsd_host *host, struct mmc_data *data)
len = data->sg_len;
for (i = 0; i < len; i++) {
sgbuf = page_address(sg[i].page) + sg[i].offset;
sgbuf = sg_virt(&sg[i]);
memcpy(dmabuf, sgbuf, sg[i].length);
dmabuf += sg[i].length;
}
@ -300,7 +300,7 @@ static inline void wbsd_dma_to_sg(struct wbsd_host *host, struct mmc_data *data)
len = data->sg_len;
for (i = 0; i < len; i++) {
sgbuf = page_address(sg[i].page) + sg[i].offset;
sgbuf = sg_virt(&sg[i]);
memcpy(sgbuf, dmabuf, sg[i].length);
dmabuf += sg[i].length;
}

14
drivers/net/mlx4/icm.c
View File

@ -60,7 +60,7 @@ static void mlx4_free_icm_pages(struct mlx4_dev *dev, struct mlx4_icm_chunk *chu
PCI_DMA_BIDIRECTIONAL);
for (i = 0; i < chunk->npages; ++i)
__free_pages(chunk->mem[i].page,
__free_pages(sg_page(&chunk->mem[i]),
get_order(chunk->mem[i].length));
}
@ -70,7 +70,7 @@ static void mlx4_free_icm_coherent(struct mlx4_dev *dev, struct mlx4_icm_chunk *
for (i = 0; i < chunk->npages; ++i)
dma_free_coherent(&dev->pdev->dev, chunk->mem[i].length,
lowmem_page_address(chunk->mem[i].page),
lowmem_page_address(sg_page(&chunk->mem[i])),
sg_dma_address(&chunk->mem[i]));
}
@ -95,10 +95,13 @@ void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent)
static int mlx4_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_mask)
{
mem->page = alloc_pages(gfp_mask, order);
if (!mem->page)
struct page *page;
page = alloc_pages(gfp_mask, order);
if (!page)
return -ENOMEM;
sg_set_page(mem, page);
mem->length = PAGE_SIZE << order;
mem->offset = 0;
return 0;
@ -145,6 +148,7 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
if (!chunk)
goto fail;
sg_init_table(chunk->mem, MLX4_ICM_CHUNK_LEN);
chunk->npages = 0;
chunk->nsg = 0;
list_add_tail(&chunk->list, &icm->chunk_list);
@ -334,7 +338,7 @@ void *mlx4_table_find(struct mlx4_icm_table *table, int obj, dma_addr_t *dma_han
* been assigned to.
*/
if (chunk->mem[i].length > offset) {
page = chunk->mem[i].page;
page = sg_page(&chunk->mem[i]);
goto out;
}
offset -= chunk->mem[i].length;

6
drivers/net/ppp_mppe.c
View File

@ -55,7 +55,7 @@
#include <linux/mm.h>
#include <linux/ppp_defs.h>
#include <linux/ppp-comp.h>
#include <asm/scatterlist.h>
#include <linux/scatterlist.h>
#include "ppp_mppe.h"
@ -68,9 +68,7 @@ MODULE_VERSION("1.0.2");
static unsigned int
setup_sg(struct scatterlist *sg, const void *address, unsigned int length)
{
sg[0].page = virt_to_page(address);
sg[0].offset = offset_in_page(address);
sg[0].length = length;
sg_init_one(sg, address, length);
return length;
}

4
drivers/scsi/3w-9xxx.c
View File

@ -1840,7 +1840,7 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id,
(scsi_bufflen(srb) < TW_MIN_SGL_LENGTH)) {
if (srb->sc_data_direction == DMA_TO_DEVICE || srb->sc_data_direction == DMA_BIDIRECTIONAL) {
struct scatterlist *sg = scsi_sglist(srb);
char *buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
char *buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
memcpy(tw_dev->generic_buffer_virt[request_id], buf, sg->length);
kunmap_atomic(buf - sg->offset, KM_IRQ0);
}
@ -1919,7 +1919,7 @@ static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int re
char *buf;
unsigned long flags = 0;
local_irq_save(flags);
buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
memcpy(buf, tw_dev->generic_buffer_virt[request_id], sg->length);
kunmap_atomic(buf - sg->offset, KM_IRQ0);
local_irq_restore(flags);

2
drivers/scsi/3w-xxxx.c
View File

@ -1469,7 +1469,7 @@ static void tw_transfer_internal(TW_Device_Extension *tw_dev, int request_id,
struct scatterlist *sg = scsi_sglist(cmd);
local_irq_save(flags);
buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
transfer_len = min(sg->length, len);
memcpy(buf, data, transfer_len);

6
drivers/scsi/NCR5380.c
View File

@ -298,8 +298,7 @@ static __inline__ void initialize_SCp(Scsi_Cmnd * cmd)
if (cmd->use_sg) {
cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
cmd->SCp.buffers_residual = cmd->use_sg - 1;
cmd->SCp.ptr = page_address(cmd->SCp.buffer->page)+
cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
cmd->SCp.this_residual = cmd->SCp.buffer->length;
} else {
cmd->SCp.buffer = NULL;
@ -2143,8 +2142,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) {
++cmd->SCp.buffer;
--cmd->SCp.buffers_residual;
cmd->SCp.this_residual = cmd->SCp.buffer->length;
cmd->SCp.ptr = page_address(cmd->SCp.buffer->page)+
cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
dprintk(NDEBUG_INFORMATION, ("scsi%d : %d bytes and %d buffers left\n", instance->host_no, cmd->SCp.this_residual, cmd->SCp.buffers_residual));
}
/*

4
drivers/scsi/NCR53C9x.c
View File

@ -927,7 +927,7 @@ static void esp_get_dmabufs(struct NCR_ESP *esp, Scsi_Cmnd *sp)
esp->dma_mmu_get_scsi_sgl(esp, sp);
else
sp->SCp.ptr =
(char *) virt_to_phys((page_address(sp->SCp.buffer->page) + sp->SCp.buffer->offset));
(char *) virt_to_phys(sg_virt(sp->SCp.buffer));
}
}
@ -1748,7 +1748,7 @@ static inline void advance_sg(struct NCR_ESP *esp, Scsi_Cmnd *sp)
if (esp->dma_advance_sg)
esp->dma_advance_sg (sp);
else
sp->SCp.ptr = (char *) virt_to_phys((page_address(sp->SCp.buffer->page) + sp->SCp.buffer->offset));
sp->SCp.ptr = (char *) virt_to_phys(sg_virt(sp->SCp.buffer));
}

6
drivers/scsi/NCR53c406a.c
View File

@ -875,8 +875,7 @@ static void NCR53c406a_intr(void *dev_id)
outb(TRANSFER_INFO | DMA_OP, CMD_REG);
#if USE_PIO
scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) {
NCR53c406a_pio_write(page_address(sg->page) + sg->offset,
sg->length);
NCR53c406a_pio_write(sg_virt(sg), sg->length);
}
REG0;
#endif /* USE_PIO */
@ -897,8 +896,7 @@ static void NCR53c406a_intr(void *dev_id)
outb(TRANSFER_INFO | DMA_OP, CMD_REG);
#if USE_PIO
scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) {
NCR53c406a_pio_read(page_address(sg->page) + sg->offset,
sg->length);
NCR53c406a_pio_read(sg_virt(sg), sg->length);
}
REG0;
#endif /* USE_PIO */

2
drivers/scsi/aacraid/aachba.c
View File

@ -356,7 +356,7 @@ static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigne
int transfer_len;
struct scatterlist *sg = scsi_sglist(scsicmd);
buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
transfer_len = min(sg->length, len + offset);
transfer_len -= offset;

2
drivers/scsi/aha152x.c
View File

@ -613,7 +613,7 @@ struct aha152x_scdata {
#define SCNEXT(SCpnt) SCDATA(SCpnt)->next
#define SCSEM(SCpnt) SCDATA(SCpnt)->done
#define SG_ADDRESS(buffer) ((char *) (page_address((buffer)->page)+(buffer)->offset))
#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer)))
/* state handling */
static void seldi_run(struct Scsi_Host *shpnt);

8
drivers/scsi/aha1542.c
View File

@ -49,7 +49,7 @@
#include "aha1542.h"
#define SCSI_BUF_PA(address) isa_virt_to_bus(address)
#define SCSI_SG_PA(sgent) (isa_page_to_bus((sgent)->page) + (sgent)->offset)
#define SCSI_SG_PA(sgent) (isa_page_to_bus(sg_page((sgent))) + (sgent)->offset)
static void BAD_DMA(void *address, unsigned int length)
{
@ -66,8 +66,7 @@ static void BAD_SG_DMA(Scsi_Cmnd * SCpnt,
int badseg)
{
printk(KERN_CRIT "sgpnt[%d:%d] page %p/0x%llx length %u\n",
badseg, nseg,
page_address(sgp->page) + sgp->offset,
badseg, nseg, sg_virt(sgp),
(unsigned long long)SCSI_SG_PA(sgp),
sgp->length);
@ -712,8 +711,7 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
printk(KERN_CRIT "Bad segment list supplied to aha1542.c (%d, %d)\n", SCpnt->use_sg, i);
scsi_for_each_sg(SCpnt, sg, SCpnt->use_sg, i) {
printk(KERN_CRIT "%d: %p %d\n", i,
(page_address(sg->page) +
sg->offset), sg->length);
sg_virt(sg), sg->length);
};
printk(KERN_CRIT "cptr %x: ", (unsigned int) cptr);
ptr = (unsigned char *) &cptr[i];

4
drivers/scsi/arcmsr/arcmsr_hba.c
View File

@ -1343,7 +1343,7 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
/* 4 bytes: Areca io control code */
sg = scsi_sglist(cmd);
buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
if (scsi_sg_count(cmd) > 1) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
@ -1593,7 +1593,7 @@ static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
strncpy(&inqdata[32], "R001", 4); /* Product Revision */
sg = scsi_sglist(cmd);
buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
memcpy(buffer, inqdata, sizeof(inqdata));
sg = scsi_sglist(cmd);

6
drivers/scsi/atari_NCR5380.c
View File

@ -515,8 +515,7 @@ static inline void initialize_SCp(Scsi_Cmnd *cmd)
if (cmd->use_sg) {
cmd->SCp.buffer = (struct scatterlist *)cmd->request_buffer;
cmd->SCp.buffers_residual = cmd->use_sg - 1;
cmd->SCp.ptr = (char *)page_address(cmd->SCp.buffer->page) +
cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
cmd->SCp.this_residual = cmd->SCp.buffer->length;
/* ++roman: Try to merge some scatter-buffers if they are at
* contiguous physical addresses.
@ -2054,8 +2053,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
++cmd->SCp.buffer;
--cmd->SCp.buffers_residual;
cmd->SCp.this_residual = cmd->SCp.buffer->length;
cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) +
cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
/* ++roman: Try to merge some scatter-buffers if
* they are at contiguous physical addresses.
*/

4
drivers/scsi/eata_pio.c
View File

@ -172,7 +172,7 @@ static void IncStat(struct scsi_pointer *SCp, unsigned int Increment)
SCp->Status = 0;
else {
SCp->buffer++;
SCp->ptr = page_address(SCp->buffer->page) + SCp->buffer->offset;
SCp->ptr = sg_virt(SCp->buffer);
SCp->this_residual = SCp->buffer->length;
}
}
@ -410,7 +410,7 @@ static int eata_pio_queue(struct scsi_cmnd *cmd,
} else {
cmd->SCp.buffer = cmd->request_buffer;
cmd->SCp.buffers_residual = cmd->use_sg;
cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
cmd->SCp.this_residual = cmd->SCp.buffer->length;
}
cmd->SCp.Status = (cmd->SCp.this_residual != 0); /* TRUE as long as bytes

6
drivers/scsi/fd_mcs.c
View File

@ -973,7 +973,7 @@ static irqreturn_t fd_mcs_intr(int irq, void *dev_id)
if (current_SC->SCp.buffers_residual) {
--current_SC->SCp.buffers_residual;
++current_SC->SCp.buffer;
current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
} else
break;
@ -1006,7 +1006,7 @@ static irqreturn_t fd_mcs_intr(int irq, void *dev_id)
if (!current_SC->SCp.this_residual && current_SC->SCp.buffers_residual) {
--current_SC->SCp.buffers_residual;
++current_SC->SCp.buffer;
current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
}
}
@ -1109,7 +1109,7 @@ static int fd_mcs_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
if (current_SC->use_sg) {
current_SC->SCp.buffer = (struct scatterlist *) current_SC->request_buffer;
current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
current_SC->SCp.buffers_residual = current_SC->use_sg - 1;
} else {

7
drivers/scsi/fdomain.c
View File

@ -1321,7 +1321,7 @@ static irqreturn_t do_fdomain_16x0_intr(int irq, void *dev_id)
if (current_SC->SCp.buffers_residual) {
--current_SC->SCp.buffers_residual;
++current_SC->SCp.buffer;
current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
} else
break;
@ -1354,7 +1354,7 @@ static irqreturn_t do_fdomain_16x0_intr(int irq, void *dev_id)
&& current_SC->SCp.buffers_residual) {
--current_SC->SCp.buffers_residual;
++current_SC->SCp.buffer;
current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
}
}
@ -1439,8 +1439,7 @@ static int fdomain_16x0_queue(struct scsi_cmnd *SCpnt,
if (scsi_sg_count(current_SC)) {
current_SC->SCp.buffer = scsi_sglist(current_SC);
current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page)
+ current_SC->SCp.buffer->offset;
current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
current_SC->SCp.buffers_residual = scsi_sg_count(current_SC) - 1;
} else {

6
drivers/scsi/gdth.c
View File

@ -2374,18 +2374,18 @@ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
if (cpsum+cpnow > cpcount)
cpnow = cpcount - cpsum;
cpsum += cpnow;
if (!sl->page) {
if (!sg_page(sl)) {
printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
ha->hanum);
return;
}
local_irq_save(flags);
address = kmap_atomic(sl->page, KM_BIO_SRC_IRQ) + sl->offset;
address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset;
if (to_buffer)
memcpy(buffer, address, cpnow);
else
memcpy(address, buffer, cpnow);
flush_dcache_page(sl->page);
flush_dcache_page(sg_page(sl));
kunmap_atomic(address, KM_BIO_SRC_IRQ);
local_irq_restore(flags);
if (cpsum == cpcount)

2
drivers/scsi/ibmmca.c
View File

@ -1828,7 +1828,7 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
BUG_ON(scsi_sg_count(cmd) > 16);
scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) {
ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sg->page) + sg->offset);
ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sg_page(sg)) + sg->offset);
ld(shpnt)[ldn].sge[i].byte_length = sg->length;
}
scb->enable |= IM_POINTER_TO_LIST;

12
drivers/scsi/ide-scsi.c
View File

@ -175,18 +175,18 @@ static void idescsi_input_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigne
while (bcount) {
count = min(pc->sg->length - pc->b_count, bcount);
if (PageHighMem(pc->sg->page)) {
if (PageHighMem(sg_page(pc->sg))) {
unsigned long flags;
local_irq_save(flags);
buf = kmap_atomic(pc->sg->page, KM_IRQ0) +
buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) +
pc->sg->offset;
drive->hwif->atapi_input_bytes(drive,
buf + pc->b_count, count);
kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
local_irq_restore(flags);
} else {
buf = page_address(pc->sg->page) + pc->sg->offset;
buf = sg_virt(pc->sg);
drive->hwif->atapi_input_bytes(drive,
buf + pc->b_count, count);
}
@ -212,18 +212,18 @@ static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsign
while (bcount) {
count = min(pc->sg->length - pc->b_count, bcount);
if (PageHighMem(pc->sg->page)) {
if (PageHighMem(sg_page(pc->sg))) {
unsigned long flags;
local_irq_save(flags);
buf = kmap_atomic(pc->sg->page, KM_IRQ0) +
buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) +
pc->sg->offset;
drive->hwif->atapi_output_bytes(drive,
buf + pc->b_count, count);
kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
local_irq_restore(flags);
} else {
buf = page_address(pc->sg->page) + pc->sg->offset;
buf = sg_virt(pc->sg);
drive->hwif->atapi_output_bytes(drive,
buf + pc->b_count, count);
}

8
drivers/scsi/imm.c
View File

@ -705,9 +705,7 @@ static int imm_completion(struct scsi_cmnd *cmd)
cmd->SCp.buffer++;
cmd->SCp.this_residual =
cmd->SCp.buffer->length;
cmd->SCp.ptr =
page_address(cmd->SCp.buffer->page) +
cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
/*
* Make sure that we transfer even number of bytes
@ -844,9 +842,7 @@ static int imm_engine(imm_struct *dev, struct scsi_cmnd *cmd)
cmd->SCp.buffer =
(struct scatterlist *) cmd->request_buffer;
cmd->SCp.this_residual = cmd->SCp.buffer->length;
cmd->SCp.ptr =
page_address(cmd->SCp.buffer->page) +
cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
} else {
/* else fill the only available buffer */
cmd->SCp.buffer = NULL;

4
drivers/scsi/in2000.c
View File

@ -372,7 +372,7 @@ static int in2000_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
if (cmd->use_sg) {
cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
cmd->SCp.buffers_residual = cmd->use_sg - 1;
cmd->SCp.ptr = (char *) page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
cmd->SCp.this_residual = cmd->SCp.buffer->length;
} else {
cmd->SCp.buffer = NULL;
@ -764,7 +764,7 @@ static void transfer_bytes(Scsi_Cmnd * cmd, int data_in_dir)
++cmd->SCp.buffer;
--cmd->SCp.buffers_residual;
cmd->SCp.this_residual = cmd->SCp.buffer->length;
cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
}
/* Set up hardware registers */

19
drivers/scsi/ipr.c
View File

@ -2872,6 +2872,7 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
}
scatterlist = sglist->scatterlist;
sg_init_table(scatterlist, num_elem);
sglist->order = order;
sglist->num_sg = num_elem;
@ -2884,12 +2885,12 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
/* Free up what we already allocated */
for (j = i - 1; j >= 0; j--)
__free_pages(scatterlist[j].page, order);
__free_pages(sg_page(&scatterlist[j]), order);
kfree(sglist);
return NULL;
}
scatterlist[i].page = page;
sg_set_page(&scatterlist[i], page);
}
return sglist;
@ -2910,7 +2911,7 @@ static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
int i;
for (i = 0; i < sglist->num_sg; i++)
__free_pages(sglist->scatterlist[i].page, sglist->order);
__free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
kfree(sglist);
}
@ -2940,9 +2941,11 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
scatterlist = sglist->scatterlist;
for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
kaddr = kmap(scatterlist[i].page);
struct page *page = sg_page(&scatterlist[i]);
kaddr = kmap(page);
memcpy(kaddr, buffer, bsize_elem);
kunmap(scatterlist[i].page);
kunmap(page);
scatterlist[i].length = bsize_elem;
@ -2953,9 +2956,11 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
}
if (len % bsize_elem) {
kaddr = kmap(scatterlist[i].page);
struct page *page = sg_page(&scatterlist[i]);
kaddr = kmap(page);
memcpy(kaddr, buffer, len % bsize_elem);
kunmap(scatterlist[i].page);
kunmap(page);
scatterlist[i].length = len % bsize_elem;
}

6
drivers/scsi/ips.c
View File

@ -1515,7 +1515,7 @@ static int ips_is_passthru(struct scsi_cmnd *SC)
/* kmap_atomic() ensures addressability of the user buffer.*/
/* local_irq_save() protects the KM_IRQ0 address slot. */
local_irq_save(flags);
buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
if (buffer && buffer[0] == 'C' && buffer[1] == 'O' &&
buffer[2] == 'P' && buffer[3] == 'P') {
kunmap_atomic(buffer - sg->offset, KM_IRQ0);
@ -3523,7 +3523,7 @@ ips_scmd_buf_write(struct scsi_cmnd *scmd, void *data, unsigned int count)
/* kmap_atomic() ensures addressability of the data buffer.*/
/* local_irq_save() protects the KM_IRQ0 address slot. */
local_irq_save(flags);
buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset;
buffer = kmap_atomic(sg_page(&sg[i]), KM_IRQ0) + sg[i].offset;
memcpy(buffer, &cdata[xfer_cnt], min_cnt);
kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
local_irq_restore(flags);
@ -3556,7 +3556,7 @@ ips_scmd_buf_read(struct scsi_cmnd *scmd, void *data, unsigned int count)
/* kmap_atomic() ensures addressability of the data buffer.*/
/* local_irq_save() protects the KM_IRQ0 address slot. */
local_irq_save(flags);
buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset;
buffer = kmap_atomic(sg_page(&sg[i]), KM_IRQ0) + sg[i].offset;
memcpy(&cdata[xfer_cnt], buffer, min_cnt);
kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
local_irq_restore(flags);

15
drivers/scsi/iscsi_tcp.c
View File

@ -70,9 +70,7 @@ module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO);
static inline void
iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
{
ibuf->sg.page = virt_to_page(vbuf);
ibuf->sg.offset = offset_in_page(vbuf);
ibuf->sg.length = size;
sg_init_one(&ibuf->sg, vbuf, size);
ibuf->sent = 0;
ibuf->use_sendmsg = 1;
}
@ -80,13 +78,14 @@ iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
static inline void
iscsi_buf_init_sg(struct iscsi_buf *ibuf, struct scatterlist *sg)
{
ibuf->sg.page = sg->page;
sg_init_table(&ibuf->sg, 1);
sg_set_page(&ibuf->sg, sg_page(sg));
ibuf->sg.offset = sg->offset;
ibuf->sg.length = sg->length;
/*
* Fastpath: sg element fits into single page
*/
if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg->page))
if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg_page(sg)))
ibuf->use_sendmsg = 0;
else
ibuf->use_sendmsg = 1;
@ -716,7 +715,7 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn)
for (i = tcp_ctask->sg_count; i < scsi_sg_count(sc); i++) {
char *dest;
dest = kmap_atomic(sg[i].page, KM_SOFTIRQ0);
dest = kmap_atomic(sg_page(&sg[i]), KM_SOFTIRQ0);
rc = iscsi_ctask_copy(tcp_conn, ctask, dest + sg[i].offset,
sg[i].length, offset);
kunmap_atomic(dest, KM_SOFTIRQ0);
@ -1103,9 +1102,9 @@ iscsi_send(struct iscsi_conn *conn, struct iscsi_buf *buf, int size, int flags)
* slab case.
*/
if (buf->use_sendmsg)
res = sock_no_sendpage(sk, buf->sg.page, offset, size, flags);
res = sock_no_sendpage(sk, sg_page(&buf->sg), offset, size, flags);
else
res = tcp_conn->sendpage(sk, buf->sg.page, offset, size, flags);
res = tcp_conn->sendpage(sk, sg_page(&buf->sg), offset, size, flags);
if (res >= 0) {
conn->txdata_octets += res;

8
drivers/scsi/megaraid.c
View File

@ -658,7 +658,7 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy)
struct scatterlist *sg;
sg = scsi_sglist(cmd);
buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
memset(buf, 0, cmd->cmnd[4]);
kunmap_atomic(buf - sg->offset, KM_IRQ0);
@ -1542,10 +1542,8 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
if( cmd->cmnd[0] == INQUIRY && !islogical ) {
sgl = scsi_sglist(cmd);
if( sgl->page ) {
c = *(unsigned char *)
page_address((&sgl[0])->page) +
(&sgl[0])->offset;
if( sg_page(sgl) ) {
c = *(unsigned char *) sg_virt(&sgl[0]);
} else {
printk(KERN_WARNING
"megaraid: invalid sg.\n");

12
drivers/scsi/megaraid/megaraid_mbox.c
View File

@ -1584,10 +1584,8 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy)
caddr_t vaddr;
sgl = scsi_sglist(scp);
if (sgl->page) {
vaddr = (caddr_t)
(page_address((&sgl[0])->page)
+ (&sgl[0])->offset);
if (sg_page(sgl)) {
vaddr = (caddr_t) sg_virt(&sgl[0]);
memset(vaddr, 0, scp->cmnd[4]);
}
@ -2328,10 +2326,8 @@ megaraid_mbox_dpc(unsigned long devp)
&& IS_RAID_CH(raid_dev, scb->dev_channel)) {
sgl = scsi_sglist(scp);
if (sgl->page) {
c = *(unsigned char *)
(page_address((&sgl[0])->page) +
(&sgl[0])->offset);
if (sg_page(sgl)) {
c = *(unsigned char *) sg_virt(&sgl[0]);
} else {
con_log(CL_ANN, (KERN_WARNING
"megaraid mailbox: invalid sg:%d\n",

6
drivers/scsi/oktagon_esp.c
View File

@ -550,8 +550,7 @@ void dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd *sp)
void dma_mmu_get_scsi_sgl(struct NCR_ESP *esp, Scsi_Cmnd *sp)
{
sp->SCp.ptr = page_address(sp->SCp.buffer->page)+
sp->SCp.buffer->offset;
sp->SCp.ptr = sg_virt(sp->SCp.buffer);
}
void dma_mmu_release_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd *sp)
@ -564,8 +563,7 @@ void dma_mmu_release_scsi_sgl(struct NCR_ESP *esp, Scsi_Cmnd *sp)
void dma_advance_sg(Scsi_Cmnd *sp)
{
sp->SCp.ptr = page_address(sp->SCp.buffer->page)+
sp->SCp.buffer->offset;
sp->SCp.ptr = sg_virt(sp->SCp.buffer);
}

32
drivers/scsi/osst.c
View File

@ -542,7 +542,7 @@ static int osst_verify_frame(struct osst_tape * STp, int frame_seq_number, int q
if (STp->raw) {
if (STp->buffer->syscall_result) {
for (i=0; i < STp->buffer->sg_segs; i++)
memset(page_address(STp->buffer->sg[i].page),
memset(page_address(sg_page(&STp->buffer->sg[i])),
0, STp->buffer->sg[i].length);
strcpy(STp->buffer->b_data, "READ ERROR ON FRAME");
} else
@ -4437,7 +4437,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
for (i = 0, b_size = 0;
(i < STp->buffer->sg_segs) && ((b_size + STp->buffer->sg[i].length) <= OS_DATA_SIZE);
b_size += STp->buffer->sg[i++].length);
STp->buffer->aux = (os_aux_t *) (page_address(STp->buffer->sg[i].page) + OS_DATA_SIZE - b_size);
STp->buffer->aux = (os_aux_t *) (page_address(sg_page(&STp->buffer->sg[i])) + OS_DATA_SIZE - b_size);
#if DEBUG
printk(OSST_DEB_MSG "%s:D: b_data points to %p in segment 0 at %p\n", name,
STp->buffer->b_data, page_address(STp->buffer->sg[0].page));
@ -5252,25 +5252,26 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
/* Try to allocate the first segment up to OS_DATA_SIZE and the others
big enough to reach the goal (code assumes no segments in place) */
for (b_size = OS_DATA_SIZE, order = OSST_FIRST_ORDER; b_size >= PAGE_SIZE; order--, b_size /= 2) {
STbuffer->sg[0].page = alloc_pages(priority, order);
struct page *page = alloc_pages(priority, order);
STbuffer->sg[0].offset = 0;
if (STbuffer->sg[0].page != NULL) {
if (page != NULL) {
sg_set_page(&STbuffer->sg[0], page);
STbuffer->sg[0].length = b_size;
STbuffer->b_data = page_address(STbuffer->sg[0].page);
STbuffer->b_data = page_address(page);
break;
}
}
if (STbuffer->sg[0].page == NULL) {
if (sg_page(&STbuffer->sg[0]) == NULL) {
printk(KERN_NOTICE "osst :I: Can't allocate tape buffer main segment.\n");
return 0;
}
/* Got initial segment of 'bsize,order', continue with same size if possible, except for AUX */
for (segs=STbuffer->sg_segs=1, got=b_size;
segs < max_segs && got < OS_FRAME_SIZE; ) {
STbuffer->sg[segs].page =
alloc_pages(priority, (OS_FRAME_SIZE - got <= PAGE_SIZE) ? 0 : order);
struct page *page = alloc_pages(priority, (OS_FRAME_SIZE - got <= PAGE_SIZE) ? 0 : order);
STbuffer->sg[segs].offset = 0;
if (STbuffer->sg[segs].page == NULL) {
if (page == NULL) {
if (OS_FRAME_SIZE - got <= (max_segs - segs) * b_size / 2 && order) {
b_size /= 2; /* Large enough for the rest of the buffers */
order--;
@ -5284,6 +5285,7 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
normalize_buffer(STbuffer);
return 0;
}
sg_set_page(&STbuffer->sg[segs], page);
STbuffer->sg[segs].length = (OS_FRAME_SIZE - got <= PAGE_SIZE / 2) ? (OS_FRAME_SIZE - got) : b_size;
got += STbuffer->sg[segs].length;
STbuffer->buffer_size = got;
@ -5316,7 +5318,7 @@ static void normalize_buffer(struct osst_buffer *STbuffer)
b_size < STbuffer->sg[i].length;
b_size *= 2, order++);
__free_pages(STbuffer->sg[i].page, order);
__free_pages(sg_page(&STbuffer->sg[i]), order);
STbuffer->buffer_size -= STbuffer->sg[i].length;
}
#if DEBUG
@ -5344,7 +5346,7 @@ static int append_to_buffer(const char __user *ubp, struct osst_buffer *st_bp, i
for ( ; i < st_bp->sg_segs && do_count > 0; i++) {
cnt = st_bp->sg[i].length - offset < do_count ?
st_bp->sg[i].length - offset : do_count;
res = copy_from_user(page_address(st_bp->sg[i].page) + offset, ubp, cnt);
res = copy_from_user(page_address(sg_page(&st_bp->sg[i])) + offset, ubp, cnt);
if (res)
return (-EFAULT);
do_count -= cnt;
@ -5377,7 +5379,7 @@ static int from_buffer(struct osst_buffer *st_bp, char __user *ubp, int do_count
for ( ; i < st_bp->sg_segs && do_count > 0; i++) {
cnt = st_bp->sg[i].length - offset < do_count ?
st_bp->sg[i].length - offset : do_count;
res = copy_to_user(ubp, page_address(st_bp->sg[i].page) + offset, cnt);
res = copy_to_user(ubp, page_address(sg_page(&st_bp->sg[i])) + offset, cnt);
if (res)
return (-EFAULT);
do_count -= cnt;
@ -5410,7 +5412,7 @@ static int osst_zero_buffer_tail(struct osst_buffer *st_bp)
i < st_bp->sg_segs && do_count > 0; i++) {
cnt = st_bp->sg[i].length - offset < do_count ?
st_bp->sg[i].length - offset : do_count ;
memset(page_address(st_bp->sg[i].page) + offset, 0, cnt);
memset(page_address(sg_page(&st_bp->sg[i])) + offset, 0, cnt);
do_count -= cnt;
offset = 0;
}
@ -5430,7 +5432,7 @@ static int osst_copy_to_buffer(struct osst_buffer *st_bp, unsigned char *ptr)
for (i = 0; i < st_bp->sg_segs && do_count > 0; i++) {
cnt = st_bp->sg[i].length < do_count ?
st_bp->sg[i].length : do_count ;
memcpy(page_address(st_bp->sg[i].page), ptr, cnt);
memcpy(page_address(sg_page(&st_bp->sg[i])), ptr, cnt);
do_count -= cnt;
ptr += cnt;
}
@ -5451,7 +5453,7 @@ static int osst_copy_from_buffer(struct osst_buffer *st_bp, unsigned char *ptr)
for (i = 0; i < st_bp->sg_segs && do_count > 0; i++) {
cnt = st_bp->sg[i].length < do_count ?
st_bp->sg[i].length : do_count ;
memcpy(ptr, page_address(st_bp->sg[i].page), cnt);
memcpy(ptr, page_address(sg_page(&st_bp->sg[i])), cnt);
do_count -= cnt;
ptr += cnt;
}

2
drivers/scsi/pcmcia/nsp_cs.h
View File

@ -393,7 +393,7 @@ enum _burst_mode {
#define MSG_EXT_SDTR 0x01
/* scatter-gather table */
# define BUFFER_ADDR ((char *)((unsigned int)(SCpnt->SCp.buffer->page) + SCpnt->SCp.buffer->offset))
# define BUFFER_ADDR ((char *)((sg_virt(SCpnt->SCp.buffer))))
#endif /*__nsp_cs__*/
/* end */

6
drivers/scsi/pcmcia/sym53c500_cs.c
View File

@ -443,8 +443,7 @@ SYM53C500_intr(int irq, void *dev_id)
scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
SYM53C500_pio_write(fast_pio, port_base,
page_address(sg->page) + sg->offset,
sg->length);
sg_virt(sg), sg->length);
}
REG0(port_base);
}
@ -463,8 +462,7 @@ SYM53C500_intr(int irq, void *dev_id)
scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
SYM53C500_pio_read(fast_pio, port_base,
page_address(sg->page) + sg->offset,
sg->length);
sg_virt(sg), sg->length);
}
REG0(port_base);
}

7
drivers/scsi/ppa.c
View File

@ -608,9 +608,7 @@ static int ppa_completion(struct scsi_cmnd *cmd)
cmd->SCp.buffer++;
cmd->SCp.this_residual =
cmd->SCp.buffer->length;
cmd->SCp.ptr =
page_address(cmd->SCp.buffer->page) +
cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
}
}
/* Now check to see if the drive is ready to comunicate */
@ -756,8 +754,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
/* if many buffers are available, start filling the first */
cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
cmd->SCp.this_residual = cmd->SCp.buffer->length;
cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) +
cmd->SCp.buffer->offset;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
} else {
/* else fill the only available buffer */
cmd->SCp.buffer = NULL;

6
drivers/scsi/ps3rom.c
View File

@ -111,14 +111,14 @@ static int fill_from_dev_buffer(struct scsi_cmnd *cmd, const void *buf)
req_len = act_len = 0;
scsi_for_each_sg(cmd, sgpnt, scsi_sg_count(cmd), k) {
if (active) {
kaddr = kmap_atomic(sgpnt->page, KM_IRQ0);
kaddr = kmap_atomic(sg_page(sgpnt), KM_IRQ0);
len = sgpnt->length;
if ((req_len + len) > buflen) {
active = 0;
len = buflen - req_len;
}
memcpy(kaddr + sgpnt->offset, buf + req_len, len);
flush_kernel_dcache_page(sgpnt->page);
flush_kernel_dcache_page(sg_page(sgpnt));
kunmap_atomic(kaddr, KM_IRQ0);
act_len += len;
}
@ -147,7 +147,7 @@ static int fetch_to_dev_buffer(struct scsi_cmnd *cmd, void *buf)
req_len = fin = 0;
scsi_for_each_sg(cmd, sgpnt, scsi_sg_count(cmd), k) {
kaddr = kmap_atomic(sgpnt->page, KM_IRQ0);
kaddr = kmap_atomic(sg_page(sgpnt->page), KM_IRQ0);
len = sgpnt->length;
if ((req_len + len) > buflen) {
len = buflen - req_len;

2
drivers/scsi/qlogicfas408.c
View File

@ -317,7 +317,7 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
return ((priv->qabort == 1 ?
DID_ABORT : DID_RESET) << 16);
}
buf = page_address(sg->page) + sg->offset;
buf = sg_virt(sg);
if (ql_pdma(priv, phase, buf, sg->length))
break;
}

4
drivers/scsi/scsi_debug.c
View File

@ -625,7 +625,7 @@ static int fill_from_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
scsi_for_each_sg(scp, sg, scp->use_sg, k) {
if (active) {
kaddr = (unsigned char *)
kmap_atomic(sg->page, KM_USER0);
kmap_atomic(sg_page(sg), KM_USER0);
if (NULL == kaddr)
return (DID_ERROR << 16);
kaddr_off = (unsigned char *)kaddr + sg->offset;
@ -672,7 +672,7 @@ static int fetch_to_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
sg = scsi_sglist(scp);
req_len = fin = 0;
for (k = 0; k < scp->use_sg; ++k, sg = sg_next(sg)) {
kaddr = (unsigned char *)kmap_atomic(sg->page, KM_USER0);
kaddr = (unsigned char *)kmap_atomic(sg_page(sg), KM_USER0);
if (NULL == kaddr)
return -1;
kaddr_off = (unsigned char *)kaddr + sg->offset;

13
drivers/scsi/scsi_lib.c
View File

@ -295,7 +295,7 @@ static int scsi_req_map_sg(struct request *rq, struct scatterlist *sgl,
int i, err, nr_vecs = 0;
for_each_sg(sgl, sg, nsegs, i) {
page = sg->page;
page = sg_page(sg);
off = sg->offset;
len = sg->length;
data_len += len;
@ -764,7 +764,7 @@ struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
if (unlikely(!sgl))
goto enomem;
memset(sgl, 0, sizeof(*sgl) * sgp->size);
sg_init_table(sgl, sgp->size);
/*
* first loop through, set initial index and return value
@ -780,6 +780,13 @@ struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
if (prev)
sg_chain(prev, SCSI_MAX_SG_SEGMENTS, sgl);
/*
* if we have nothing left, mark the last segment as
* end-of-list
*/
if (!left)
sg_mark_end(sgl, this);
/*
* don't allow subsequent mempool allocs to sleep, it would
* violate the mempool principle.
@ -2353,7 +2360,7 @@ void *scsi_kmap_atomic_sg(struct scatterlist *sgl, int sg_count,
*offset = *offset - len_complete + sg->offset;
/* Assumption: contiguous pages can be accessed as "page + i" */
page = nth_page(sg->page, (*offset >> PAGE_SHIFT));
page = nth_page(sg_page(sg), (*offset >> PAGE_SHIFT));
*offset &= ~PAGE_MASK;
/* Bytes in this sg-entry from *offset to the end of the page */

8
drivers/scsi/seagate.c
View File

@ -999,14 +999,14 @@ connect_loop:
for (i = 0; i < nobuffs; ++i)
printk("scsi%d : buffer %d address = %p length = %d\n",
hostno, i,
page_address(buffer[i].page) + buffer[i].offset,
sg_virt(&buffer[i]),
buffer[i].length);
}
#endif
buffer = (struct scatterlist *) SCint->request_buffer;
len = buffer->length;
data = page_address(buffer->page) + buffer->offset;
data = sg_virt(buffer);
} else {
DPRINTK (DEBUG_SG, "scsi%d : scatter gather not requested.\n", hostno);
buffer = NULL;
@ -1239,7 +1239,7 @@ connect_loop:
--nobuffs;
++buffer;
len = buffer->length;
data = page_address(buffer->page) + buffer->offset;
data = sg_virt(buffer);
DPRINTK (DEBUG_SG,
"scsi%d : next scatter-gather buffer len = %d address = %08x\n",
hostno, len, data);
@ -1396,7 +1396,7 @@ connect_loop:
--nobuffs;
++buffer;
len = buffer->length;
data = page_address(buffer->page) + buffer->offset;
data = sg_virt(buffer);
DPRINTK (DEBUG_SG, "scsi%d : next scatter-gather buffer len = %d address = %08x\n", hostno, len, data);
}
break;

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