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sparc: use sparc64 version of scatterlist.h

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Use sparc64 version of scatterlist.h.

There are three main differences:
    dma_addr_t replaces __u32
    dma_address replaces dvma_address
    dma_length replaces dvma_length

dma_addr_t is a u32 on sparc32.

Boot tested on sparc32.

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Robert Reif 2008-12-11 20:24:58 -08:00 committed by David S. Miller
parent 18cdae68e7
commit aa83a26a19
7 changed files with 43 additions and 77 deletions
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33
arch/sparc/include/asm/scatterlist.h
View File

@ -1,8 +1,27 @@
#ifndef ___ASM_SPARC_SCATTERLIST_H
#define ___ASM_SPARC_SCATTERLIST_H
#if defined(__sparc__) && defined(__arch64__)
#include <asm/scatterlist_64.h>
#else
#include <asm/scatterlist_32.h>
#endif
#ifndef _SPARC_SCATTERLIST_H
#define _SPARC_SCATTERLIST_H
#include <asm/page.h>
#include <asm/types.h>
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
unsigned long sg_magic;
#endif
unsigned long page_link;
unsigned int offset;
unsigned int length;
dma_addr_t dma_address;
__u32 dma_length;
};
#define sg_dma_address(sg) ((sg)->dma_address)
#define sg_dma_len(sg) ((sg)->dma_length)
#define ISA_DMA_THRESHOLD (~0UL)
#define ARCH_HAS_SG_CHAIN
#endif /* !(_SPARC_SCATTERLIST_H) */

26
arch/sparc/include/asm/scatterlist_32.h
View File

@ -1,26 +0,0 @@
#ifndef _SPARC_SCATTERLIST_H
#define _SPARC_SCATTERLIST_H
#include <linux/types.h>
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
unsigned long sg_magic;
#endif
unsigned long page_link;
unsigned int offset;
unsigned int length;
__u32 dvma_address; /* A place to hang host-specific addresses at. */
__u32 dvma_length;
};
#define sg_dma_address(sg) ((sg)->dvma_address)
#define sg_dma_len(sg) ((sg)->dvma_length)
#define ISA_DMA_THRESHOLD (~0UL)
#define ARCH_HAS_SG_CHAIN
#endif /* !(_SPARC_SCATTERLIST_H) */

27
arch/sparc/include/asm/scatterlist_64.h
View File

@ -1,27 +0,0 @@
#ifndef _SPARC64_SCATTERLIST_H
#define _SPARC64_SCATTERLIST_H
#include <asm/page.h>
#include <asm/types.h>
struct scatterlist {
#ifdef CONFIG_DEBUG_SG
unsigned long sg_magic;
#endif
unsigned long page_link;
unsigned int offset;
unsigned int length;
dma_addr_t dma_address;
__u32 dma_length;
};
#define sg_dma_address(sg) ((sg)->dma_address)
#define sg_dma_len(sg) ((sg)->dma_length)
#define ISA_DMA_THRESHOLD (~0UL)
#define ARCH_HAS_SG_CHAIN
#endif /* !(_SPARC64_SCATTERLIST_H) */

4
arch/sparc/kernel/ioport.c
View File

@ -552,8 +552,8 @@ int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sgl, int nents,
/* IIep is write-through, not flushing. */
for_each_sg(sgl, sg, nents, n) {
BUG_ON(page_address(sg_page(sg)) == NULL);
sg->dvma_address = virt_to_phys(sg_virt(sg));
sg->dvma_length = sg->length;
sg->dma_address = virt_to_phys(sg_virt(sg));
sg->dma_length = sg->length;
}
return nents;
}

8
arch/sparc/mm/io-unit.c
View File

@ -156,8 +156,8 @@ static void iounit_get_scsi_sgl(struct device *dev, struct scatterlist *sg, int
spin_lock_irqsave(&iounit->lock, flags);
while (sz != 0) {
--sz;
sg->dvma_address = iounit_get_area(iounit, (unsigned long) sg_virt(sg), sg->length);
sg->dvma_length = sg->length;
sg->dma_address = iounit_get_area(iounit, (unsigned long) sg_virt(sg), sg->length);
sg->dma_length = sg->length;
sg = sg_next(sg);
}
spin_unlock_irqrestore(&iounit->lock, flags);
@ -186,8 +186,8 @@ static void iounit_release_scsi_sgl(struct device *dev, struct scatterlist *sg,
spin_lock_irqsave(&iounit->lock, flags);
while (sz != 0) {
--sz;
len = ((sg->dvma_address & ~PAGE_MASK) + sg->length + (PAGE_SIZE-1)) >> PAGE_SHIFT;
vaddr = (sg->dvma_address - IOUNIT_DMA_BASE) >> PAGE_SHIFT;
len = ((sg->dma_address & ~PAGE_MASK) + sg->length + (PAGE_SIZE-1)) >> PAGE_SHIFT;
vaddr = (sg->dma_address - IOUNIT_DMA_BASE) >> PAGE_SHIFT;
IOD(("iounit_release %08lx-%08lx\n", (long)vaddr, (long)len+vaddr));
for (len += vaddr; vaddr < len; vaddr++)
clear_bit(vaddr, iounit->bmap);

16
arch/sparc/mm/iommu.c
View File

@ -245,8 +245,8 @@ static void iommu_get_scsi_sgl_noflush(struct device *dev, struct scatterlist *s
while (sz != 0) {
--sz;
n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
sg->dvma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
sg->dvma_length = (__u32) sg->length;
sg->dma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
sg->dma_length = sg->length;
sg = sg_next(sg);
}
}
@ -259,8 +259,8 @@ static void iommu_get_scsi_sgl_gflush(struct device *dev, struct scatterlist *sg
while (sz != 0) {
--sz;
n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
sg->dvma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
sg->dvma_length = (__u32) sg->length;
sg->dma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
sg->dma_length = sg->length;
sg = sg_next(sg);
}
}
@ -290,8 +290,8 @@ static void iommu_get_scsi_sgl_pflush(struct device *dev, struct scatterlist *sg
}
}
sg->dvma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
sg->dvma_length = (__u32) sg->length;
sg->dma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset;
sg->dma_length = sg->length;
sg = sg_next(sg);
}
}
@ -330,8 +330,8 @@ static void iommu_release_scsi_sgl(struct device *dev, struct scatterlist *sg, i
--sz;
n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
iommu_release_one(dev, sg->dvma_address & PAGE_MASK, n);
sg->dvma_address = 0x21212121;
iommu_release_one(dev, sg->dma_address & PAGE_MASK, n);
sg->dma_address = 0x21212121;
sg = sg_next(sg);
}
}

6
arch/sparc/mm/sun4c.c
View File

@ -1122,8 +1122,8 @@ static void sun4c_get_scsi_sgl(struct device *dev, struct scatterlist *sg, int s
{
while (sz != 0) {
--sz;
sg->dvma_address = (__u32)sun4c_lockarea(sg_virt(sg), sg->length);
sg->dvma_length = sg->length;
sg->dma_address = (__u32)sun4c_lockarea(sg_virt(sg), sg->length);
sg->dma_length = sg->length;
sg = sg_next(sg);
}
}
@ -1139,7 +1139,7 @@ static void sun4c_release_scsi_sgl(struct device *dev, struct scatterlist *sg, i
{
while (sz != 0) {
--sz;
sun4c_unlockarea((char *)sg->dvma_address, sg->length);
sun4c_unlockarea((char *)sg->dma_address, sg->length);
sg = sg_next(sg);
}
}