git.baikalelectronics.ru Git - kernel.git/commit

]> git.baikalelectronics.ru Git - kernel.git/commit

author	Benjamin Herrenschmidt <benh@kernel.crashing.org>
	Fri, 10 May 2013 06:59:18 +0000 (16:59 +1000)
committer	Benjamin Herrenschmidt <benh@kernel.crashing.org>
	Fri, 10 May 2013 06:59:18 +0000 (16:59 +1000)
commit	ec7958a02087f08b41cc114f930b3bc483828018
tree	2571b5d1851a9f2bef62e92def3608f738748251	tree \| snapshot
parent	75fdf35c8ce45736190842d20a410db8d6412b41	commit \| diff

powerpc/powernv: Improve kexec reliability

We add a machine_shutdown hook that frees the OPAL interrupts
(so they get masked at the source and don't fire while kexec'ing)
and which triggers an IODA reset on all the PCIe host bridges
which will have the effect of blocking all DMAs and subsequent
PCIs interrupts.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Linux Kernel Source Tree.

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arch/powerpc/include/asm/opal.h		diff \| blob \| history
arch/powerpc/platforms/powernv/opal.c		diff \| blob \| history
arch/powerpc/platforms/powernv/pci-ioda.c		diff \| blob \| history
arch/powerpc/platforms/powernv/pci.c		diff \| blob \| history
arch/powerpc/platforms/powernv/pci.h		diff \| blob \| history
arch/powerpc/platforms/powernv/powernv.h		diff \| blob \| history
arch/powerpc/platforms/powernv/setup.c		diff \| blob \| history