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authorIan Munsie2013-02-07 16:46:58 +0100
committerBenjamin Herrenschmidt2013-02-08 04:05:50 +0100
commit2468dcf641e4f3e1b0153e3e11ca20740b2f4ce8 (patch)
tree02a1ca877b20fd0975befc2554957ee4b535a6a0 /arch/powerpc/include/asm/exception-64s.h
parentpseries/iommu: Remove DDW on kexec (diff)
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powerpc: Add support for context switching the TAR register
This patch adds support for enabling and context switching the Target Address Register in Power8. The TAR is a new special purpose register that can be used for computed branches with the bctar[l] (branch conditional to TAR) instruction in the same manner as the count and link registers. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Matt Evans <matt@ozlabs.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/exception-64s.h')
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