]> err.no Git - linux-2.6/commit
[PATCH] x86_64: Calgary IOMMU - IOMMU abstractions
authorJon Mason <jdmason@us.ibm.com>
Mon, 26 Jun 2006 11:58:11 +0000 (13:58 +0200)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 26 Jun 2006 17:48:18 +0000 (10:48 -0700)
commit0dc243ae10c8309c170a3af9f1adad1924a9f217
treef550a8097913728ce96322d5f799329489db85a1
parenta3c042a0f022dade8e02bf6c9be5d2379d7e133c
[PATCH] x86_64: Calgary IOMMU - IOMMU abstractions

This patch creates a new interface for IOMMUs by adding a centralized
location for IOMMU allocation (for translation tables/apertures) and
IOMMU initialization.  In creating these, code was moved around for
abstraction, uniformity, and consiceness.

Take note of the move of the iommu_setup bootarg parsing code to
__setup.  This is enabled by moving back the location of the aperture
allocation/detection to mem init (which while ugly, was already the
location of the swiotlb_init).

While a slight departure from the previous patch, I belive this provides
the true intention of the previous versions of the patch which changed
this code.  It also makes the addition of the upcoming calgary code much
cleaner than previous patches.

[AK: Removed one broken change. iommu_setup still has to be called
early]

Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Jon Mason <jdmason@us.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/x86_64/kernel/pci-dma.c
arch/x86_64/kernel/pci-gart.c
arch/x86_64/kernel/setup.c
arch/x86_64/mm/init.c
include/asm-x86_64/pci.h
include/asm-x86_64/proto.h