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Re: [PATCH] [16/35] i386: Add an option for the VIA C7 which sets appropriate L1 cache

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From: Dave Jones <davej@...>
To: Jeff Garzik <jeff@...>
Cc: Andi Kleen <ak@...>, Simon Arlott <simon@...>, Dave Jones <davej@...>, Alan Cox <alan@...>, <linux-kernel@...>, <patches@...>
Subject: Re: [PATCH] [16/35] i386: Add an option for the VIA C7 which sets appropriate L1 cache
Date: Saturday, April 28, 2007 - 2:28 pm

On Sat, Apr 28, 2007 at 02:08:58PM -0400, Jeff Garzik wrote:
 > Andi Kleen wrote:
 > > From: Simon Arlott <simon@arlott.org>
 > > 
 > > The VIA C7 is a 686 (with TSC) that supports MMX, SSE and SSE2, it also has
 > > a cache line length of 64 according to
 > > http://www.digit-life.com/articles2/cpu/rmma-via-c7.html.  This patch sets
 > > gcc to -march=686 and select s the correct cache shift.
 > > 
 > > Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
 > > Signed-off-by: Andi Kleen <ak@suse.de>
 > > Cc: Andi Kleen <ak@suse.de>
 > > Cc: Dave Jones <davej@codemonkey.org.uk>
 > > Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
 > > Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 > 
 > Has it been verified in the field that this CPU supports CMOV?

Yes. All their CPUs for some time now have done so.

	Dave

-- 
http://www.codemonkey.org.uk
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[PATCH] [0/35] Some x86 2.6.22 candidate patches for review, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [5/35] x86_64: always use physical delivery mode on ..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [14/35] i386: mtrr range check correction, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [15/35] i386: pit_latch_buggy has no effect, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [1/35] i386: revert i386-fix-the-verify_quirk_intel_..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [4/35] x86_64: optimize &amp; fix APIC mode setup, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [11/35] x86_64: adjust inclusion of asm/vsyscall32.h, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [13/35] i386: No need to use -traditional for proces..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [3/35] x86: revert x86_64-mm-fix-the-irqbalance-quir..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [9/35] i386: adjustments to page table dump during o..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [10/35] x86: adjust inclusion of asm/fixmap.h, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [12/35] x86: consolidate smp_send_stop(), Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [7/35] x86: default to physical mode on hotplug CPU ..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [8/35] x86_64: a memcpy that tries to reduce cache p..., Andi Kleen, (Sat Apr 28, 1:52 pm)
Re: [patches] [PATCH] [8/35] x86_64: a memcpy that tries to ..., Jan Beulich, (Mon Apr 30, 3:26 am)
Re: [patches] [PATCH] [8/35] x86_64: a memcpy that tries to ..., Andi Kleen, (Mon Apr 30, 5:04 am)
Re: [patches] [PATCH] [8/35] x86_64: a memcpy that tries to ..., Bryan O'Sullivan, (Mon Apr 30, 12:14 pm)
[PATCH] [35/35] i386: Simplify smp_call_function*() by using..., Andi Kleen, (Sat Apr 28, 1:53 pm)
[PATCH] [34/35] x86_64: fix cpu MHz reporting on constant_ts..., Andi Kleen, (Sat Apr 28, 1:53 pm)
[PATCH] [33/35] x86_64: Remove duplicated code for reading c..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [32/35] x86_64: Remove unused set_seg_base, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [31/35] i386: Fix usage of -mtune when X86_GENERIC=y..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [30/35] i386: clean up mach_reboot_fixups, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [29/35] i386: Update __copy_to_user_inatomic linuxd..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [28/35] x86: Drop cc-options call for all options su..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [27/35] i386: Support Oprofile for AMD Family 10 CPUs, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [26/35] x86_64: Correct max number of CPUs in Kconfig, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [25/35] i386: Change sysenter_setup to __cpuinit &am..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [24/35] i386: Add __init to probe_bigsmp, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [23/35] x86_64: x86_64 make NMI use PERFCTR1 for arc..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [22/35] i386: i386 make NMI use PERFCTR1 for archite..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [21/35] x86_64: Some cleanup in time.c, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [20/35] x86: Fix i386 and x86_64 fault information p..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [19/35] i386: Add dwarf2 annotations to *_user and c..., Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [18/35] x86_64: a few missing entry.S annotations, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [17/35] i386: probe_roms() cleanup, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [16/35] i386: Add an option for the VIA C7 which set..., Andi Kleen, (Sat Apr 28, 1:52 pm)
Re: [PATCH] [16/35] i386: Add an option for the VIA C7 which..., Jeff Garzik, (Sat Apr 28, 2:08 pm)
Re: [PATCH] [16/35] i386: Add an option for the VIA C7 which..., Dave Jones, (Sat Apr 28, 2:28 pm)
[PATCH] [6/35] x86_64: remove clustered APIC mode, Andi Kleen, (Sat Apr 28, 1:52 pm)
[PATCH] [2/35] x86_64: revert x86_64-mm-add-genapic_force, Andi Kleen, (Sat Apr 28, 1:52 pm)