diff options
Diffstat (limited to 'arch/sparc64/kernel/iommu_common.h')
| -rw-r--r-- | arch/sparc64/kernel/iommu_common.h | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h deleted file mode 100644 index ad791014419..00000000000 --- a/arch/sparc64/kernel/iommu_common.h +++ /dev/null @@ -1,48 +0,0 @@ -/* $Id: iommu_common.h,v 1.5 2001/12/11 09:41:01 davem Exp $ - * iommu_common.h: UltraSparc SBUS/PCI common iommu declarations. - * - * Copyright (C) 1999 David S. Miller (davem@redhat.com) - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/sched.h> -#include <linux/mm.h> - -#include <asm/iommu.h> -#include <asm/scatterlist.h> - -/* - * These give mapping size of each iommu pte/tlb. - */ -#define IO_PAGE_SHIFT 13 -#define IO_PAGE_SIZE (1UL << IO_PAGE_SHIFT) -#define IO_PAGE_MASK (~(IO_PAGE_SIZE-1)) -#define IO_PAGE_ALIGN(addr) (((addr)+IO_PAGE_SIZE-1)&IO_PAGE_MASK) - -#define IO_TSB_ENTRIES (128*1024) -#define IO_TSB_SIZE (IO_TSB_ENTRIES * 8) - -/* - * This is the hardwired shift in the iotlb tag/data parts. - */ -#define IOMMU_PAGE_SHIFT 13 - -/* You are _strongly_ advised to enable the following debugging code - * any time you make changes to the sg code below, run it for a while - * with filesystems mounted read-only before buying the farm... -DaveM - */ -#undef VERIFY_SG - -#ifdef VERIFY_SG -extern void verify_sglist(struct scatterlist *sg, int nents, iopte_t *iopte, int npages); -#endif - -/* Two addresses are "virtually contiguous" if and only if: - * 1) They are equal, or... - * 2) They are both on a page boundary - */ -#define VCONTIG(__X, __Y) (((__X) == (__Y)) || \ - (((__X) | (__Y)) << (64UL - PAGE_SHIFT)) == 0UL) - -extern unsigned long prepare_sg(struct scatterlist *sg, int nents); |