Re: MediaGX/GeodeGX1 requires X86_OOSTORE.

• To: [email protected] (Lennart Sorensen)
• Subject: Re: MediaGX/GeodeGX1 requires X86_OOSTORE.
• From: Roland Dreier <[email protected]>
• Date: Mon, 19 Feb 2007 11:48:27 -0800
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• Cc: takada <[email protected]>, [email protected], [email protected], [email protected]
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• In-reply-to: <[email protected]> (Lennart Sorensen's message of "Mon, 19 Feb 2007 09:55:14 -0500")
• References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>
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 > 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).
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    • From: takada <[email protected]>
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• References:
  • MediaGX/GeodeGX1 requires X86_OOSTORE. (Was: Re: Strange connection slowdown on pcnet32)
    • From: [email protected] (Lennart Sorensen)
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