alpha: IOMMU had better access to the free space bitmap at only one place
commit23d7e0390ab57cf15a5cfe8d6806192f0997e5a8
authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Tue, 4 Mar 2008 22:28:57 +0000 (4 14:28 -0800)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Wed, 5 Mar 2008 00:35:14 +0000 (4 16:35 -0800)
tree8e812d880912e2034513cc1cdb3deb3e2cefb374
parent3c5f1def7dd50b792f56dcf7378c2684c06947f3
alpha: IOMMU had better access to the free space bitmap at only one place

iommu_arena_find_pages duplicates the code to access to the bitmap for free
space management.  This patch convert the IOMMU code to have only one place to
access the bitmap, in the popular way that other IOMMUs (e.g.  POWER and
SPARC) do.

This patch is preparation for modifications to fix the IOMMU segment boundary
problem.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/alpha/kernel/pci_iommu.c