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| author | Alexey Starikovskiy <aystarik@gmail.com> | 2007-11-26 20:42:19 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-11-26 20:42:19 +0100 |
| commit | c1c306344669ca40255e36192b101060ffbb1271 (patch) | |
| tree | 292c7936d91b8ed2febb3e2902de41d0e6c84bca /include/asm-ia64 | |
| parent | d4d25deca49ec2527a634557bf5a6cf449f85deb (diff) | |
| download | lwn-c1c306344669ca40255e36192b101060ffbb1271.tar.gz lwn-c1c306344669ca40255e36192b101060ffbb1271.zip | |
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>
Diffstat (limited to 'include/asm-ia64')
| -rw-r--r-- | include/asm-ia64/acpi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-ia64/acpi.h b/include/asm-ia64/acpi.h index 49730ffbbae4..81bcd5e51789 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); |