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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2011-09-02 13:32:30 -0400 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2011-09-05 15:14:37 +0200 |
| commit | 329d8d3b474923087f6988737ff12137b58e55cc (patch) | |
| tree | 9db30cae05fb15b6dfede6976aae1dfbd9dfd80d /drivers/iommu/omap-iommu.c | |
| parent | 024ae884a657f8ddeeff6b472c1fe538f277980e (diff) | |
| download | op-kernel-dev-329d8d3b474923087f6988737ff12137b58e55cc.zip op-kernel-dev-329d8d3b474923087f6988737ff12137b58e55cc.tar.gz | |
iommu/omap-iovmm: support non page-aligned buffers in iommu_vmap
omap_iovmm requires page-aligned buffers, and that sometimes causes
omap3isp failures (i.e. whenever the buffer passed from userspace is not
page-aligned).
Remove this limitation by rounding the address of the first page entry
down, and adding the offset back to the device address.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
[ohad@wizery.com: rebased, but tested only with aligned buffers]
[ohad@wizery.com: slightly edited the commit log]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu/omap-iommu.c')
0 files changed, 0 insertions, 0 deletions
