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path: root/arch/powerpc/include/asm/tce.h
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2011-11-25powerpc/powernv: Add TCE SW invalidation supportBenjamin Herrenschmidt1-1/+3
This is used for newer IO Hubs such as p7IOC. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-25powerpc/pseries: Software invalidatation of TCEsMilton Miller1-3/+5
Some pseries IOMMUs cache TCEs but don't snoop when the TCEs are changed in memory, hence we need manually invalidate in software. This adds code to do the invalidate. It keys off a device tree property to say where the to do the MMIO for the invalidate and some information on what the format of the invalidate including some magic routing info. it_busno get overloaded with this magic routing info and it_index with the MMIO address for the invalidate command. This then gets hooked into the building and freeing of TCEs. This is only useful on bare metal pseries. pHyp takes care of this when virtualised. Based on patch from Milton with cleanups from Mikey. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-08-04powerpc: Move include files to arch/powerpc/include/asmStephen Rothwell1-0/+50
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>