linux-kernel - Re: x86: add new cache descriptors

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Message-ID: <20091110185944.GA20935@redhat.com>
Date:	Tue, 10 Nov 2009 13:59:44 -0500
From:	Dave Jones <davej@...hat.com>
To:	x86@...nel.org, Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: x86: add new cache descriptors

On Tue, Nov 10, 2009 at 01:49:24PM -0500, Dave Jones wrote:
 
 > diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
 > index 804c40e..228fc67 100644
 > --- a/arch/x86/kernel/cpu/intel_cacheinfo.c
 > +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
 > @@ -102,6 +102,9 @@ static const struct _cache_table __cpuinitconst cache_table[] =
 >  	{ 0xe2, LVL_3,    2048 },	/* 16-way set assoc, 64 byte line size */
 >  	{ 0xe3, LVL_3,    4096 },	/* 16-way set assoc, 64 byte line size */
 >  	{ 0xe4, LVL_3,    8192 },	/* 16-way set assoc, 64 byte line size */
 > +	{ 0xea, LVL_3,    12288 },	/* 24-way set assoc, 64 byte line size */
 > +	{ 0xeb, LVL_3,    18432 },	/* 24-way set assoc, 64 byte line size */
 > +	{ 0xec, LVL_3,    24576 },	/* 24-way set assoc, 64 byte line size */
 >  	{ 0x00, 0, 0}

btw, something I'm thinking of doing as a followup is making these use the
defines like we have in drivers/char/agp/agp.h

#define KB(x)   ((x) * 1024)
#define MB(x)   (KB (KB (x)))
#define GB(x)   (MB (KB (x)))

There's a few similar definitions throughout the tree.  Any opinions on whether
I should add these to kernel.h, or create a new header for them ?

	Dave

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