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iommu: add iommu_num_pages helper function
authorJoerg Roedel <joerg.roedel@amd.com>
Fri, 25 Jul 2008 12:57:58 +0000 (14:57 +0200)
committerIngo Molnar <mingo@elte.hu>
Sat, 26 Jul 2008 13:43:05 +0000 (15:43 +0200)
commit3bc9f79ee1ddc913be0a6d3592036683ef8a3148
tree21f0dc5f5feb140d8566e22fa3c7ecac009e27f3tree | snapshot
parent024e8ac04453b3525448c31ef39848cf675ba6dbcommit | diff
iommu: add iommu_num_pages helper function

Calculating the number of pages from given address and length numbers is a task
required in multiple IOMMU implementations. So implement this as a generic
function into the IOMMU helper code.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: iommu@lists.linux-foundation.org
Cc: bhavna.sarathy@amd.com
Cc: robert.richter@amd.com
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
include/linux/iommu-helper.h diff | blob | history
lib/iommu-helper.c diff | blob | history
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