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Benjamin Romer ee4eff6ff6 [PATCH] x86-64: update IO-APIC dest field to 8-bit for xAPIC 
On the Unisys ES7000/ONE system, we encountered a problem where performing
a kexec reboot or dump on any cell other than cell 0 causes the system
timer to stop working, resulting in a hang during timer calibration in the
new kernel.

We traced the problem to one line of code in disable_IO_APIC(), which needs
to restore the timer's IO-APIC configuration before rebooting.  The code is
currently using the 4-bit physical destination field, rather than using the
8-bit logical destination field, and it cuts off the upper 4 bits of the
timer's APIC ID.  If we change this to use the logical destination field,
the timer works and we can kexec on the upper cells.  This was tested on
two different cells (0 and 2) in an ES7000/ONE system.

For reference, the relevant Intel xAPIC spec is kept at
ftp://download.intel.com/design/chipsets/e8501/datashts/30962001.pdf,
specifically on page 334.

Signed-off-by: Benjamin M Romer <benjamin.romer@unisys.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2007-02-13 13:26:25 +01:00
..
acpi [PATCH] x86-64: Remove fastcall references in x86_64 code 2007-02-13 13:26:22 +01:00
cpufreq [CPUFREQ] select consistently 2006-12-22 22:45:41 -05:00
aperture.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 2006-09-26 10:52:41 +02:00
apic.c [PATCH] x86-64: Remove unused GET_APIC_VERSION call from clear_local_APIC 2006-12-07 02:14:11 +01:00
asm-offsets.c
audit.c [PATCH] audit: AUDIT_PERM support 2006-09-11 13:32:30 -04:00
crash_dump.c
crash.c [PATCH] Kexec / Kdump: Unify elf note code 2006-12-07 08:39:46 -08:00
e820.c [PATCH] x86-64: Fix fake numa for x86_64 machines with big IO hole 2007-02-13 13:26:22 +01:00
early_printk.c [PATCH] x86_64: fix 'earlyprintk=...,keep' regression 2006-11-28 10:58:21 -08:00
early-quirks.c ACPICA: Remove duplicate table definitions (non-conflicting), cont 2007-02-02 21:14:29 -05:00
entry.S Remove stack unwinder for now 2006-12-15 08:47:51 -08:00
functionlist [NET]: make skb_release_data() static 2006-06-29 16:58:30 -07:00
genapic_cluster.c [PATCH] x86_64 irq: Allocate a vector across all cpus for genapic_flat. 2006-10-08 12:24:02 -07:00
genapic_flat.c [PATCH] x86-64: Put more than one cpu in TARGET_CPUS 2006-10-21 18:37:02 +02:00
genapic.c ACPICA: use new ACPI headers. 2007-02-02 21:14:28 -05:00
head64.c [PATCH] Dynamic kernel command-line: fixups 2007-02-12 09:48:39 -08:00
head.S [PATCH] x86-64: x86_64 - Fix FS/GS registers for VT execution 2007-02-13 13:26:24 +01:00
i387.c [PATCH] x86-64: use BUILD_BUG_ON in FPU code 2006-12-07 02:14:01 +01:00
i8259.c [PATCH] x86_64: interrupt array size should be aligned to NR_VECTORS 2006-12-07 02:14:12 +01:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
io_apic.c [PATCH] x86-64: update IO-APIC dest field to 8-bit for xAPIC 2007-02-13 13:26:25 +01:00
ioport.c [PATCH] x86-64: Use constant instead of raw number in x86_64 ioperm.c 2007-02-13 13:26:22 +01:00
irq.c [PATCH] x86-64: Rate limit no irq handler messages 2006-12-07 02:14:09 +01:00
k8.c [PATCH] x86_64: Clean and enhance up K8 northbridge access code 2006-06-26 10:48:15 -07:00
kprobes.c [PATCH] kprobes: enable booster on the preemptible kernel 2006-12-07 08:39:38 -08:00
ldt.c
machine_kexec.c [PATCH] Avoid overwriting the current pgd (V4, x86_64) 2006-09-26 10:52:38 +02:00
Makefile [PATCH] x86: Refactor thermal throttle processing 2006-09-26 10:52:42 +02:00
mce_amd.c [PATCH] x86-64: Allow to run a program when a machine check event is detected 2007-02-13 13:26:23 +01:00
mce_intel.c [PATCH] x86: Add a cumulative thermal throttle event counter. 2006-09-26 10:52:42 +02:00
mce.c [PATCH] x86-64: Allow to run a program when a machine check event is detected 2007-02-13 13:26:23 +01:00
module.c [PATCH] Generic BUG for x86-64 2006-12-08 08:28:39 -08:00
mpparse.c ACPICA: use new ACPI headers. 2007-02-02 21:14:28 -05:00
nmi.c [PATCH] x86: fix laptop bootup hang in init_acpi() 2007-02-13 13:26:24 +01:00
pci-calgary.c [PATCH] x86-64: robustify bad_dma_address handling 2007-02-13 13:26:24 +01:00
pci-dma.c [PATCH] x86-64: improved iommu documentation 2007-02-13 13:26:21 +01:00
pci-gart.c [PATCH] x86-64: Fix off by one error in IOMMU boundary checking 2007-02-13 13:26:24 +01:00
pci-nommu.c [PATCH] remove superflous BUG_ON's in nommu and gart 2006-09-26 10:52:32 +02:00
pci-swiotlb.c [IA64] swiotlb cleanup 2007-02-05 18:51:25 -08:00
pmtimer.c [PATCH] make pmtmr_ioport __read_mostly 2006-06-26 09:58:21 -07:00
process.c [PATCH] sched: fix bad missed wakeups in the i386, x86_64, ia64, ACPI and APM idle code 2006-12-22 08:55:51 -08:00
ptrace.c [PATCH] x86-64: Check return value of putreg in PTRACE_SETREGS 2007-02-13 13:26:24 +01:00
reboot.c [PATCH] x86_64: Move export symbols to their C functions 2006-06-26 10:48:22 -07:00
relocate_kernel.S [PATCH] Avoid overwriting the current pgd (V4, x86_64) 2006-09-26 10:52:38 +02:00
setup64.c [PATCH] x86-64: Unexport __supported_pte_mask 2007-02-13 13:26:24 +01:00
setup.c [PATCH] x86-64: Don't reserve ROMs 2007-02-13 13:26:24 +01:00
signal.c [PATCH] Remove all traces of signal number conversion 2006-09-26 10:52:41 +02:00
smp.c Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-12-07 08:59:11 -08:00
smpboot.c Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-12-07 08:59:11 -08:00
stacktrace.c [PATCH] x86-64: do not always end the stack trace with ULONG_MAX 2007-02-13 13:26:21 +01:00
suspend_asm.S [PATCH] Change the name of pagedir_nosave 2006-09-26 08:49:01 -07:00
suspend.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
sys_x86_64.c [PATCH] namespaces: utsname: switch to using uts namespaces 2006-10-02 07:57:21 -07:00
syscall.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
tce.c Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
time.c [PATCH] x86-64: - Ignore long SMI interrupts in clock calibration code - update 1 2007-02-13 13:26:24 +01:00
trampoline.S [PATCH] Fix gdt table size in trampoline.S 2006-09-26 10:52:32 +02:00
traps.c [PATCH] x86_64: Fix dump_trace() 2007-01-03 08:49:59 -08:00
vmlinux.lds.S [PATCH] disable init/initramfs.c: architectures 2007-02-11 10:51:25 -08:00
vsmp.c [PATCH] Fix build breakage with CONFIG_X86_VSMP 2006-10-12 12:25:27 -07:00
vsyscall.c [PATCH] sysctl: remove unused "context" param 2006-12-10 09:55:41 -08:00
x8664_ksyms.c [PATCH] x86-64: Remove fastcall references in x86_64 code 2007-02-13 13:26:22 +01:00