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authorOhad Ben-Cohen <ohad@wizery.com>2011-11-10 11:32:25 +0200
committerJoerg Roedel <joerg.roedel@amd.com>2011-11-10 11:40:37 +0100
commit5009065d38c95455bd2d27c2838313e3dd0c5bc7 (patch)
treea957af07e95166bcc014b3f333234fe74cef790e /include/linux/iommu.h
parent1ea6b8f48918282bdca0b32a34095504ee65bab5 (diff)
downloadop-kernel-dev-5009065d38c95455bd2d27c2838313e3dd0c5bc7.zip
op-kernel-dev-5009065d38c95455bd2d27c2838313e3dd0c5bc7.tar.gz
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 <ohad@wizery.com> Cc: David Brown <davidb@codeaurora.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Joerg Roedel <Joerg.Roedel@amd.com> Cc: Stepan Moskovchenko <stepanm@codeaurora.org> Cc: KyongHo Cho <pullip.cho@samsung.com> Cc: Hiroshi DOYU <hdoyu@nvidia.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 432acc4..d5ebf3f 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -54,9 +54,9 @@ struct iommu_ops {
int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
int (*map)(struct iommu_domain *domain, unsigned long iova,
- phys_addr_t paddr, int gfp_order, int prot);
- int (*unmap)(struct iommu_domain *domain, unsigned long iova,
- int gfp_order);
+ phys_addr_t paddr, size_t size, int prot);
+ size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
+ size_t size);
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain,
unsigned long iova);
int (*domain_has_cap)(struct iommu_domain *domain,
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