hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

sparc32: Kill mmu_translate_dvma() usage. 

Just simply use virt_to_page() on the provided virtual address pointer.

Kill #if 0'd code.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-27 02:20:35 -07:00
parent 10a104f9c5
commit aba945e76b
1 changed files with 1 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
arch/sparc/kernel/ioport.c
View File

@ -383,7 +383,7 @@ void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba)
kfree(res);
/* mmu_inval_dma_area(va, n); */ /* it's consistent, isn't it */
pgv = mmu_translate_dvma(ba);
pgv = virt_to_page(p);
mmu_unmap_dma_area(ba, n);
__free_pages(pgv, get_order(n));
@ -428,46 +428,12 @@ void sbus_unmap_sg(struct device *dev, struct scatterlist *sg, int n, int direct
mmu_release_scsi_sgl(dev, sg, n);
}
/*
*/
void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, int direction)
{
#if 0
unsigned long va;
struct resource *res;
/* We do not need the resource, just print a message if invalid. */
res = _sparc_find_resource(&_sparc_dvma, ba);
if (res == NULL)
panic("sbus_dma_sync_single: 0x%x\n", ba);
va = page_address(mmu_translate_dvma(ba)); /* XXX higmem */
/*
* XXX This bogosity will be fixed with the iommu rewrite coming soon
* to a kernel near you. - Anton
*/
/* mmu_inval_dma_area(va, (size + PAGE_SIZE-1) & PAGE_MASK); */
#endif
}
void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, int direction)
{
#if 0
unsigned long va;
struct resource *res;
/* We do not need the resource, just print a message if invalid. */
res = _sparc_find_resource(&_sparc_dvma, ba);
if (res == NULL)
panic("sbus_dma_sync_single: 0x%x\n", ba);
va = page_address(mmu_translate_dvma(ba)); /* XXX higmem */
/*
* XXX This bogosity will be fixed with the iommu rewrite coming soon
* to a kernel near you. - Anton
*/
/* mmu_inval_dma_area(va, (size + PAGE_SIZE-1) & PAGE_MASK); */
#endif
}
/* Support code for sbus_init(). */