From: Krzysztof Helt <krzysztof.h1@wp.pl>
The macros setCx86_old() and getCx86_old() do not
work as a comment says in the processor-cyrix.h.
Use working inline functions instead to enable
the CPUID instriction on Cyrix cpus.
Tested on IBM 6x86MX cpu with disabled the
CPUID instruction.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
---
This patch is against the linux-next tree (20080819)
as it contains the following patch:
x86, cyrix: debug
Signed-off-by: Ingo Molnar <mingo@elte.hu>
http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commit;h=026e2c05ef58ef...
The linux-2.6-tip tree has not the Ingo's patch so it
does not require my patch.
I am confused. Is the x86 detection code for Cyrix
cpus is right in the linux-next or in the linux-2.6-tip?
Should I prepare patches against the linux-2.6-tip
or linux-next?
diff -urp linux-orig/arch/x86/kernel/cpu/cyrix.c linux-2.6.27/arch/x86/kernel/cpu/cyrix.c
--- linux-orig/arch/x86/kernel/cpu/cyrix.c 2008-09-29 00:16:31.000000000 +0200
+++ linux-2.6.27/arch/x86/kernel/cpu/cyrix.c 2008-09-29 17:03:52.563864398 +0200
@@ -428,7 +428,7 @@ static void __cpuinit cyrix_identify(str
local_irq_save(flags);
ccr3 = getCx86(CX86_CCR3);
setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */
- setCx86_old(CX86_CCR4, getCx86_old(CX86_CCR4) | 0x80); /* enable cpuid */
+ setCx86(CX86_CCR4, getCx86(CX86_CCR4) | 0x80); /* enable cpuid */
setCx86(CX86_CCR3, ccr3); /* disable MAPEN */
local_irq_restore(flags);
}
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