From c1c306344669ca40255e36192b101060ffbb1271 Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy <aystarik@gmail.com> Date: Mon, 26 Nov 2007 20:42:19 +0100 Subject: ACPI: Set max_cstate to 1 for early Opterons. AMD Opteron processors before CG revision don't like C-states > 1. This solves the long standing bugzilla #5303 and probably some more on affected machines: http://bugzilla.kernel.org/show_bug.cgi?id=5303 [ tglx@linutronix.de: reworked the patch so it does not wreck ia64 ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- include/asm-ia64/acpi.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/asm-ia64') diff --git a/include/asm-ia64/acpi.h b/include/asm-ia64/acpi.h index 49730ffbbae..81bcd5e5178 100644 --- a/include/asm-ia64/acpi.h +++ b/include/asm-ia64/acpi.h @@ -94,6 +94,7 @@ ia64_acpi_release_global_lock (unsigned int *lock) #define acpi_noirq 0 /* ACPI always enabled on IA64 */ #define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */ #define acpi_strict 1 /* no ACPI spec workarounds on IA64 */ +#define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */ static inline void disable_acpi(void) { } const char *acpi_get_sysname (void); -- cgit v1.2.3-70-g09d2