From: Roland Dreier <[EMAIL PROTECTED]>
Subject: Re: MediaGX/GeodeGX1 requires X86_OOSTORE.
Date: Mon, 19 Feb 2007 11:48:27 -0800

>  > Does anyone know if there is any way to flush a cache line of the cpu to
>  > force rereading system memory for a given address or address range?
> 
> There is the "clflush" instruction, but not all x86 CPUs support it.
> You need to check the CPUID flag to know for sure (/proc/cpuinfo will
> show a "clflush" flag if it is supported).

/proc/cpuinfo with MediaGXm :

processor       : 0
vendor_id       : CyrixInstead
cpu family      : 5
model           : 5
model name      : Cyrix MediaGXtm MMXtm Enhanced
stepping        : 2
cpu MHz         : 199.750
cache size      : 16 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu tsc msr cx8 cmov mmx cxmmx
bogomips        : 401.00
clflush size    : 32
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