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| author | Jens.Osterkamp@de.ibm.com <Jens.Osterkamp@de.ibm.com> | 2005-12-09 21:04:20 +0300 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 06:53:24 +0300 |
| commit | 49d65b3ac5614431041abcd2eabc0d77eff5e32d (patch) | |
| tree | df090de4f35468904fc37011ac06b9316393ff0f /arch/powerpc/platforms/cell/setup.c | |
| parent | 38307341af3a0be8ec5319756361b51ac29dffc7 (diff) | |
| download | linux-49d65b3ac5614431041abcd2eabc0d77eff5e32d.tar.xz | |
[PATCH] powerpc/cell: add iommu support for larger memory
So far, the iommu code was hardwired to a linear mapping
between 0x20000000 and 0x40000000, so it could only support
512MB of RAM.
This patch still keeps the linear mapping, but looks for
proper ibm,dma-window properties to set up larger windows,
this makes the maximum supported RAM size 2GB.
If there is anything unusual about the dma-window properties,
we fall back to the old behavior.
We also support switching off the iommu completely now
with the regular iommu=off command line option.
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/setup.c')
0 files changed, 0 insertions, 0 deletions