linux/arch/i386/kernel/cpu
Rafał Bilski 48b7bde0f6 [CPUFREQ] Longhaul - Workaround issues with APIC.
There is no need to worry about local APIC.
There is need to worry about I/O APIC, because I/O APIC
is replacing good old 8259. According to Nehemiah datasheet VIA is
using 3-wire bus to connect local APIC to I/O APIC.

"[...] When IA32_APIC_BASE[11] is set to 0, processor APICs based on the 3-wire APIC
 bus cannot be generally re-enabled until a system hardware reset. The 3-wire bus
 looses track of arbitration that would be necessary for complete re-enabling. Certain
 (local) APIC functionality can be enabled. [...]"

So we must set disable bit for each interrupt in I/O APIC registers.
Same situation as for PIC - we must poke registers direcly.
How to do this? I don't know. So at the moment it is better to fail.

Signed-off-by: Rafał Bilski <rafalbilski@interia.pl>
Signed-off-by: Dave Jones <davej@redhat.com>
2006-07-31 18:37:05 -04:00
..
cpufreq [CPUFREQ] Longhaul - Workaround issues with APIC. 2006-07-31 18:37:05 -04:00
mcheck [PATCH] mce section fix 2006-07-31 13:28:37 -07:00
mtrr
amd.c [PATCH] i386: move phys_proc_id and cpu_core_id to cpuinfo_x86 2006-06-27 17:32:37 -07:00
centaur.c
common.c [PATCH] fix subarchitecture breakage with CONFIG_SCHED_SMT 2006-06-27 17:32:38 -07:00
cpu.h
cyrix.c spelling fixes 2006-06-26 18:35:02 +02:00
intel.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
intel_cacheinfo.c [PATCH] cpu hotplug: use hotplug version of registration in late inits 2006-07-31 13:28:39 -07:00
Makefile
nexgen.c
proc.c [PATCH] i386: move phys_proc_id and cpu_core_id to cpuinfo_x86 2006-06-27 17:32:37 -07:00
rise.c
transmeta.c
umc.c