diff options
Diffstat (limited to 'arch/sparc64/kernel/iommu_common.h')
| -rw-r--r-- | arch/sparc64/kernel/iommu_common.h | 33 |
1 files changed, 13 insertions, 20 deletions
diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h index 4b5cafa2877..0713bd58499 100644 --- a/arch/sparc64/kernel/iommu_common.h +++ b/arch/sparc64/kernel/iommu_common.h @@ -1,9 +1,11 @@ -/* $Id: iommu_common.h,v 1.5 2001/12/11 09:41:01 davem Exp $ - * iommu_common.h: UltraSparc SBUS/PCI common iommu declarations. +/* iommu_common.h: UltraSparc SBUS/PCI common iommu declarations. * - * Copyright (C) 1999 David S. Miller (davem@redhat.com) + * Copyright (C) 1999, 2008 David S. Miller (davem@davemloft.net) */ +#ifndef _IOMMU_COMMON_H +#define _IOMMU_COMMON_H + #include <linux/kernel.h> #include <linux/types.h> #include <linux/sched.h> @@ -56,21 +58,12 @@ static inline unsigned long calc_npages(struct scatterlist *sglist, int nelems) return npages; } -/* 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 iommu_range_alloc(struct device *dev, + struct iommu *iommu, + unsigned long npages, + unsigned long *handle); +extern void iommu_range_free(struct iommu *iommu, + dma_addr_t dma_addr, + unsigned long npages); -extern unsigned long prepare_sg(struct device *dev, struct scatterlist *sg, int nents); +#endif /* _IOMMU_COMMON_H */ |