From 5009065d38c95455bd2d27c2838313e3dd0c5bc7 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Thu, 10 Nov 2011 11:32:25 +0200 Subject: iommu/core: stop converting bytes to page order back and forth Express sizes in bytes rather than in page order, to eliminate the size->order->size conversions we have whenever the IOMMU API is calling the low level drivers' map/unmap methods. Adopt all existing drivers. Signed-off-by: Ohad Ben-Cohen Cc: David Brown Cc: David Woodhouse Cc: Joerg Roedel Cc: Stepan Moskovchenko Cc: KyongHo Cho Cc: Hiroshi DOYU Cc: Laurent Pinchart Signed-off-by: Joerg Roedel --- drivers/iommu/iommu.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/iommu/iommu.c') diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 2fb2963df55..7a2953d8f12 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -168,13 +168,13 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova, BUG_ON(!IS_ALIGNED(iova | paddr, size)); - return domain->ops->map(domain, iova, paddr, gfp_order, prot); + return domain->ops->map(domain, iova, paddr, size, prot); } EXPORT_SYMBOL_GPL(iommu_map); int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order) { - size_t size; + size_t size, unmapped; if (unlikely(domain->ops->unmap == NULL)) return -ENODEV; @@ -183,6 +183,8 @@ int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order) BUG_ON(!IS_ALIGNED(iova, size)); - return domain->ops->unmap(domain, iova, gfp_order); + unmapped = domain->ops->unmap(domain, iova, size); + + return get_order(unmapped); } EXPORT_SYMBOL_GPL(iommu_unmap); -- cgit v1.2.3-70-g09d2