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sparc32: Kill mmu_translate_dvma and implementations. 

No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-27 02:29:50 -07:00
parent aba945e76b
commit b1387c35be
4 changed files with 0 additions and 34 deletions
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2
arch/sparc/include/asm/dma.h
View File

@ -132,12 +132,10 @@ BTFIXUPDEF_CALL(void, mmu_release_scsi_sgl, struct device *, struct scatterlist
* to a separate mapping function for CPU visible mappings.
*/
BTFIXUPDEF_CALL(int, mmu_map_dma_area, dma_addr_t *, unsigned long, unsigned long, int len)
BTFIXUPDEF_CALL(struct page *, mmu_translate_dvma, unsigned long busa)
BTFIXUPDEF_CALL(void, mmu_unmap_dma_area, unsigned long busa, int len)
#define mmu_map_dma_area(pba,va,a,len) BTFIXUP_CALL(mmu_map_dma_area)(pba,va,a,len)
#define mmu_unmap_dma_area(ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(ba,len)
#define mmu_translate_dvma(ba) BTFIXUP_CALL(mmu_translate_dvma)(ba)
#endif
#endif /* !(_ASM_SPARC_DMA_H) */

14
arch/sparc/mm/io-unit.c
View File

@ -233,19 +233,6 @@ static void iounit_unmap_dma_area(unsigned long addr, int len)
{
/* XXX Somebody please fill this in */
}
/* XXX We do not pass sbus device here, bad. */
static struct page *iounit_translate_dvma(unsigned long addr)
{
struct sbus_bus *sbus = sbus_root; /* They are all the same */
struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu;
int i;
iopte_t *iopte;
i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT);
iopte = (iopte_t *)(iounit->page_table + i);
return pfn_to_page(iopte_val(*iopte) >> (PAGE_SHIFT-4)); /* XXX sun4d guru, help */
}
#endif
static char *iounit_lockarea(char *vaddr, unsigned long len)
@ -272,7 +259,6 @@ void __init ld_mmu_iounit(void)
#ifdef CONFIG_SBUS
BTFIXUPSET_CALL(mmu_map_dma_area, iounit_map_dma_area, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(mmu_unmap_dma_area, iounit_unmap_dma_area, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(mmu_translate_dvma, iounit_translate_dvma, BTFIXUPCALL_NORM);
#endif
}

10
arch/sparc/mm/iommu.c
View File

@ -421,15 +421,6 @@ static void iommu_unmap_dma_area(unsigned long busa, int len)
iommu_invalidate(iommu->regs);
bit_map_clear(&iommu->usemap, ioptex, len >> PAGE_SHIFT);
}
static struct page *iommu_translate_dvma(unsigned long busa)
{
struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu;
iopte_t *iopte = iommu->page_table;
iopte += ((busa - iommu->start) >> PAGE_SHIFT);
return pfn_to_page((iopte_val(*iopte) & IOPTE_PAGE) >> (PAGE_SHIFT-4));
}
#endif
static char *iommu_lockarea(char *vaddr, unsigned long len)
@ -465,7 +456,6 @@ void __init ld_mmu_iommu(void)
#ifdef CONFIG_SBUS
BTFIXUPSET_CALL(mmu_map_dma_area, iommu_map_dma_area, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(mmu_unmap_dma_area, iommu_unmap_dma_area, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(mmu_translate_dvma, iommu_translate_dvma, BTFIXUPCALL_NORM);
#endif
if (viking_mxcc_present || srmmu_modtype == HyperSparc) {

8
arch/sparc/mm/sun4c.c
View File

@ -555,13 +555,6 @@ static int sun4c_map_dma_area(dma_addr_t *pba, unsigned long va,
return 0;
}
static struct page *sun4c_translate_dvma(unsigned long busa)
{
/* Fortunately for us, bus_addr == uncached_virt in sun4c. */
unsigned long pte = sun4c_get_pte(busa);
return pfn_to_page(pte & SUN4C_PFN_MASK);
}
static void sun4c_unmap_dma_area(unsigned long busa, int len)
{
/* Fortunately for us, bus_addr == uncached_virt in sun4c. */
@ -2263,7 +2256,6 @@ void __init ld_mmu_sun4c(void)
BTFIXUPSET_CALL(mmu_map_dma_area, sun4c_map_dma_area, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(mmu_unmap_dma_area, sun4c_unmap_dma_area, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(mmu_translate_dvma, sun4c_translate_dvma, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(sparc_mapiorange, sun4c_mapiorange, BTFIXUPCALL_NORM);
BTFIXUPSET_CALL(sparc_unmapiorange, sun4c_unmapiorange, BTFIXUPCALL_NORM);