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powerpc: Endian safe trampoline
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Mon, 23 Sep 2013 02:04:45 +0000 (12:04 +1000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 11 Oct 2013 05:48:34 +0000 (16:48 +1100)
commit564d959e2e672cbc4758ca5876021e46e6e37d56
treefe31fb5e5be50119f39d2e22953f13d8ace85cb1tree | snapshot
parent388a76df2eb3acec03e088014508660b25473224commit | diff
powerpc: Endian safe trampoline

Create a trampoline that works in either endian and flips to
the expected endian. Use it for primary and secondary thread
entry as well as RTAS and OF call return.

Credit for finding the magic instruction goes to Paul Mackerras

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/include/asm/ppc_asm.h diff | blob | history
arch/powerpc/kernel/entry_64.S diff | blob | history
arch/powerpc/kernel/head_64.S diff | blob | history
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