Re: [PATCH] x86_64: Force broadcast timer on AMD systems with C3 too.

From: Dave Jones
Date: Sat Mar 25 2006 - 19:49:23 EST


On Sat, Mar 25, 2006 at 06:13:00PM +0000, Linux Kernel wrote:
> commit bd6633476922b7b51227f7f704c2546e763ae5ed
> tree 4e9844781419fe600c3e9f3e9dab8207f8dd12dd
> parent 7682968b7d4d42bb076051b962c3926b4c98539a
> author Andi Kleen <ak@xxxxxxx> Sat, 25 Mar 2006 16:31:07 +0100
> committer Linus Torvalds <torvalds@xxxxxxxxxxx> Sun, 26 Mar 2006 01:10:56 -0800
>
> [PATCH] x86_64: Force broadcast timer on AMD systems with C3 too.

this breaks ia64.

drivers/acpi/processor_idle.c: In function 'acpi_processor_power_verify':
drivers/acpi/processor_idle.c:919: error: 'switch_APIC_timer_to_ipi' undeclared (first use in this function)
drivers/acpi/processor_idle.c:919: error: (Each undeclared identifier is reported only once
drivers/acpi/processor_idle.c:919: error: for each function it appears in.)

> #ifdef ARCH_APICTIMER_STOPS_ON_C3
> - if (cx->valid && c->x86_vendor == X86_VENDOR_INTEL) {
> - on_each_cpu(switch_APIC_timer_to_ipi,
> - &mask, 1, 1);
> - }
> + if (cx->valid)
> + timer_broadcast++;
> #endif
> break;
> }
> @@ -913,6 +915,9 @@ static int acpi_processor_power_verify(s
> working++;
> }
>
> + if (timer_broadcast)
> + on_each_cpu(switch_APIC_timer_to_ipi, &mask, 1, 1);
> +

Looks like it needs wrapping in that ifdef ?

Dave


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