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From: Dave Jones <davej@redhat.com>
To: "David B. Stevens" <dsteven3@maine.rr.com>
Cc: Jamie Lokier <jamie@shareable.org>,
	michaelc <michaelc@turbolinux.com.cn>,
	linux-kernel@vger.kernel.org
Subject: Re: about PENTIUM4 cache line
Date: Sun, 17 Aug 2003 21:45:15 +0100	[thread overview]
Message-ID: <20030817204514.GB2225@redhat.com> (raw)
In-Reply-To: <3F3FE763.20503@maine.rr.com>

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 
 > (CONFIG_X86_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

-- 
 Dave Jones     http://www.codemonkey.org.uk

  reply	other threads:[~2003-08-17 20:46 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-03-09  9:03 about PENTIUM4 cache line michaelc
2001-08-08 11:52 ` shutdown on pressing the ATX power button Sergei Haller
2001-08-09 17:56   ` Pavel Machek
2003-08-17 20:25 ` about PENTIUM4 cache line Jamie Lokier
2003-08-17 20:36   ` David B. Stevens
2003-08-17 20:45     ` Dave Jones [this message]
2003-08-17 20:58       ` David B. Stevens
2003-08-17 20:42   ` Dave Jones
2003-08-17 22:52   ` Philippe Elie

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