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Michael Ellerman de4c928b84 [POWERPC] Avoid DMA exception when using axon_msi with IOMMU 
There's a brown-paper-bag bug in axon_msi, we pass the address of our
FIFO directly to the hardware, without DMA mapping it.  This leads to
DMA exceptions if you enable MSI & the IOMMU.

The fix is to correctly DMA map the fifo, dma_alloc_coherent() does
what we want - and we need to track the virt & phys addresses.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-06 16:30:00 +11:00
..
alpha alpha: kill deprecated virt_to_bus 2008-02-05 09:44:21 -08:00
arm add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
avr32 Fix timerfd breakage on avr32 2008-02-05 14:37:15 -08:00
blackfin timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
cris arch/cris: add a missing iounmap 2008-02-05 09:44:24 -08:00
frv timerfd: fix remaining architectures 2008-02-05 14:37:15 -08:00
h8300 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2008-02-04 07:58:52 -08:00
ia64 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2008-02-05 10:24:52 -08:00
m32r timerfd: fix remaining architectures 2008-02-05 14:37:15 -08:00
m68k mac68k: remove dead MAC_ADBKEYCODES 2008-02-05 09:44:24 -08:00
m68knommu m68knommu: remove duplicate exports 2008-02-05 09:44:21 -08:00
mips timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2008-02-04 07:58:52 -08:00
powerpc [POWERPC] Avoid DMA exception when using axon_msi with IOMMU 2008-02-06 16:30:00 +11:00
ppc add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
s390 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2008-02-05 10:11:02 -08:00
sh timerfd: fix remaining architectures 2008-02-05 14:37:15 -08:00
sparc timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
sparc64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2008-02-05 10:08:47 -08:00
um uml: make mconsole_stack namespace-aware 2008-02-05 09:44:32 -08:00
v850 Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig 2008-02-03 08:58:08 +01:00
x86 stop c_p_a corrupting the pds 2008-02-05 14:37:14 -08:00
xtensa Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig 2008-02-03 08:58:08 +01:00
.gitignore arch: Ignore arch/i386 and arch/x86_64 2008-01-19 21:29:39 -08:00
Kconfig Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig 2008-02-03 08:58:08 +01:00