Re: [PATCH] Display Intel Dynamic Acceleration feature in /proc/cpuinfo
- From: "H. Peter Anvin" <hpa@xxxxxxxxx>
- Date: Thu, 24 May 2007 15:14:39 -0700
Andrew Morton wrote:
I'm not sure I can be bothered repairing all that at present. I think I'll
go and hide until it becomes somebody else's problem.
I'll fix it.
<looks at hpa's tree>
@@ -23,13 +23,14 @@ static int show_cpuinfo(struct seq_file
"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
"cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov",
"pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx",
- "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
+ "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", NULL,
<wonders where pbe went to>
pbe collides with abuse by at least two vendors (AMD and
Cyrix/Centaur/VIA) of this bit for 3DNow. I don't know if that applies
only to the chips that don't support extended CPUID levels, but I'm
fairly sure that we don't handle that correctly in the vendor-specific
handlers.
I guess for now we can just unconditionally disable that bit in those
vendor routines, with a note saying that if there are such chips
supporting PBE then more sophisticated logic needs to be implemented.
-hpa
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