err.no Git - linux-2.6/commit

]> err.no Git - linux-2.6/commit

author	David S. Miller <davem@davemloft.net>
	Mon, 29 Aug 2005 19:46:22 +0000 (12:46 -0700)
committer	David S. Miller <davem@davemloft.net>
	Mon, 29 Aug 2005 19:46:22 +0000 (12:46 -0700)
commit	4f07118f656c179740cad35b827032e2e29b1210
tree	7ddeb17346fe25ae75aa5373659c053afb9ef5f5	tree \| snapshot
parent	442464a50077ff00454ff8d7628cbe1b8eacc034	commit \| diff

[SPARC64]: More fully work around Spitfire Errata 51.

It appears that a memory barrier soon after a mispredicted
branch, not just in the delay slot, can cause the hang
condition of this cpu errata.

So move them out-of-line, and explicitly put them into
a "branch always, predict taken" delay slot which should
fully kill this problem.

Signed-off-by: David S. Miller <davem@davemloft.net>

14 files changed:

Linux 2.6 source tree

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arch/sparc64/kernel/pci_iommu.c		diff \| blob \| history
arch/sparc64/kernel/process.c		diff \| blob \| history
arch/sparc64/kernel/sbus.c		diff \| blob \| history
arch/sparc64/kernel/signal32.c		diff \| blob \| history
arch/sparc64/kernel/smp.c		diff \| blob \| history
arch/sparc64/kernel/sparc64_ksyms.c		diff \| blob \| history
arch/sparc64/lib/Makefile		diff \| blob \| history
arch/sparc64/lib/debuglocks.c		diff \| blob \| history
arch/sparc64/lib/mb.S	[new file with mode: 0644]	blob
arch/sparc64/solaris/misc.c		diff \| blob \| history
include/asm-sparc64/atomic.h		diff \| blob \| history
include/asm-sparc64/bitops.h		diff \| blob \| history
include/asm-sparc64/spinlock.h		diff \| blob \| history
include/asm-sparc64/system.h		diff \| blob \| history