Re: [PATCH] [RFC] [2.5 i386] GCC 3.1 -march support, PPRO_FENCE reduction, prefetch fixes and other CPU-related changes

From: Alan Cox (
Date: Sun Aug 04 2002 - 16:51:13 EST

On Sun, 2002-08-04 at 21:23, Luca Barbieri wrote:
> Added, with the exception that sfence is only used if CONFIG_X86_OOSTORE
> is not defined (currently never).

OOSTORE should be defined for all WINCHIP family processors. We run the
winchip cpus in weak store ordered mode which requires a store fence
when we want to be sure the cpu/memory/pci view is consistent for a DMA

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