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| author | Mark Nelson <[email protected]> | 2008-07-24 04:28:48 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <[email protected]> | 2008-07-25 05:44:40 +0000 |
| commit | 7886250e9d71b24d0205ac6798ee855fb3836318 (patch) | |
| tree | f961bc97510d86aa56ab47b6154b2835c59965d8 /arch/powerpc/sysdev/dart_iommu.c | |
| parent | powerpc: BookE hardware watchpoint support (diff) | |
| download | kernel-7886250e9d71b24d0205ac6798ee855fb3836318.tar.gz kernel-7886250e9d71b24d0205ac6798ee855fb3836318.zip | |
powerpc/cell: Fixed IOMMU mapping uses weak ordering for a pcie endpoint
At the moment the fixed mapping is by default strongly ordered (the
iommu_fixed=weak boot option must be used to make the fixed mapping weakly
ordered). If we're on a setup where the southbridge is being used in
endpoint mode (triblade and CAB boards) the default should be a weakly
ordered fixed mapping.
This adds a check so that if a node of type pcie-endpoint can be found in
the device tree the fixed mapping is set to be weak by default (but can be
overridden using iommu_fixed=strong).
Signed-off-by: Mark Nelson <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Benjamin Herrenschmidt <[email protected]>
Diffstat (limited to 'arch/powerpc/sysdev/dart_iommu.c')
0 files changed, 0 insertions, 0 deletions