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SubjectRe: about PENTIUM4 cache line
On Sun, Aug 17, 2003 at 04:36:51PM -0400, David B. Stevens wrote:
> What's even more interesting is the following:

why ?

> tux:/usr/src/linux-2.6.0-test3 # grep -r "CONFIG_X86_L1_CACHE_SHIFT" *
> arch/i386/defconfig:CONFIG_X86_L1_CACHE_SHIFT=7
> arch/x86_64/defconfig:CONFIG_X86_L1_CACHE_SHIFT=6

correct default values for P4 and Hammer respectively.

> include/asm-x86_64/cache.h:#define L1_CACHE_SHIFT

Looks sane.

> include/linux/autoconf.h:#define CONFIG_X86_L1_CACHE_SHIFT 5

compile-time generated from .config

> include/asm-i386/cache.h:#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
> include/asm/cache.h:#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)

looks sane

> include/config/x86/l1/cache/shift.h:#define CONFIG_X86_L1_CACHE_SHIFT 5

compile time generated from .config.


Dave Jones
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