The Centaur doesnt have this bug and still has a low power mode. They do
it right. So it is a bug in the Cyrix chip.
> I wouldn't call this a bug. It's clearly an explicit design choice by
> the Cyrix 6x86MX CPU designers. Unfortunately it's not correctly
> documented in the 6x86MX Data Book.
Its a bug. The requirement is that it gives unique values. The C6 step
1 appears to know to increment the counter by 1 as it comes out of sleep
mode. The fact its not documented in the Cyrix data book alone makes it
a bug ;) Anyway the workaround sorts that out.
> if ((boot_cpu_data.x86_capability & 16) && (boot_cpu_data.x86_vendor !=
> X86_VENDOR_CYRIX) && !((boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR)
> && (boot_cpu_data.x86_mask == 0))) {
> ...
Cool.
Alan
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu