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powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E
authorDiana Craciun <diana.craciun@nxp.com>
Thu, 11 Apr 2019 11:46:11 +0000 (21:46 +1000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Apr 2019 06:36:41 +0000 (08:36 +0200)
commita299c074951665af5c20b3650a343722bbb70f5b
tree460673d14fef0600cc72dc3b9b1e39142cf1e69ctree | snapshot
parenta96e47d164fc386cafbc2344d2833980ca9fa04ecommit | diff
powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E

commit ebcd1bfc33c7a90df941df68a6e5d4018c022fba upstream.

Implement the barrier_nospec as a isync;sync instruction sequence.
The implementation uses the infrastructure built for BOOK3S 64.

Signed-off-by: Diana Craciun <diana.craciun@nxp.com>
[mpe: Split out of larger patch]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/powerpc/Kconfig diff | blob | history
arch/powerpc/include/asm/barrier.h diff | blob | history
arch/powerpc/lib/feature-fixups.c diff | blob | history
Domain: System / Kernel;