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a3a00751ad
linux/arch/x86_64/kernel
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john stultz a3a00751ad [PATCH] x86_64: fix hpet for systems that don't support legacy replacement 
Currently the x86-64 HPET code assumes the entire HPET implementation from
the spec is present.  This breaks on boxes that do not implement the
optional legacy timer replacement functionality portion of the spec.

This patch fixes this issue, allowing x86-64 systems that cannot use the
HPET for the timer interrupt and RTC to still use the HPET as a time
source.  I've tested this patch on a system systems without HPET, with HPET
but without legacy timer replacement, as well as HPET with legacy timer
replacement.

This version adds a minor check to cap the HPET counter value in
gettimeoffset_hpet to avoid possible time inconsistencies.  Please ignore
the A2 version I sent to you earlier.

Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23 09:45:12 -07:00
..
acpi Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpufreq Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
aperture.c [PATCH] remove direct ref to contig_page_data for x86-64 2005-06-23 09:45:06 -07:00
apic.c [PATCH] x86_64: Collected NMI watchdog fixes. 2005-05-17 07:59:16 -07:00
asm-offsets.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
e820.c [PATCH] x86-64: Handle empty E820 regions correctly 2005-05-01 08:58:52 -07:00
early_printk.c [PATCH] allow early printk to use more than 25 lines 2005-06-23 09:45:10 -07:00
entry.S [PATCH] x86_64: Readd missing tests in entry.S 2005-05-17 07:59:13 -07:00
genapic_cluster.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
genapic_flat.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
genapic.c [PATCH] x86_64 genapic update 2005-04-16 15:24:53 -07:00
head64.c [PATCH] reorganize x86-64 NUMA and DISCONTIGMEM config options 2005-06-23 09:45:06 -07:00
head.S [PATCH] x86_64: Dump stack and prevent recursion on early fault 2005-04-16 15:25:00 -07:00
i387.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
i8259.c [PATCH] x86_64: i8259.c iso99 structure initialization 2005-06-23 09:45:12 -07:00
init_task.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
io_apic.c [PATCH] x86_64: More fixes for compilation without CONFIG_ACPI 2005-05-31 14:54:17 -07:00
ioport.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kprobes.c [PATCH] Kprobes: Incorrect handling of probes on ret/lret instruction 2005-05-05 16:36:39 -07:00
ldt.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile [PATCH] x86_64: Add pmtimer support 2005-05-17 07:59:15 -07:00
mce_intel.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mce.c [PATCH] x86_64: Remove excessive stack allocation in MCE code with large NR_CPUS 2005-04-16 15:25:10 -07:00
module.c [PATCH] uml: kludgy compilation fixes for x86-64 subarch modules support 2005-05-05 16:36:33 -07:00
mpparse.c [PATCH] x86/x86_64: pcibus_to_node 2005-06-23 09:45:08 -07:00
msr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nmi.c [PATCH] x86_64: Collected NMI watchdog fixes. 2005-05-17 07:59:16 -07:00
pci-dma.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci-gart.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci-nommu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pmtimer.c [PATCH] x86_64: Add pmtimer support 2005-05-17 07:59:15 -07:00
process.c [PATCH] x86_64: TASK_SIZE fixes for compatibility mode processes 2005-06-21 18:46:12 -07:00
ptrace.c [PATCH] x86_64: TASK_SIZE fixes for compatibility mode processes 2005-06-21 18:46:12 -07:00
reboot.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup64.c [PATCH] Increase number of e820 entries hard limit from 32 to 128 2005-05-01 08:58:51 -07:00
setup.c [PATCH] add x86-64 specific support for sparsemem 2005-06-23 09:45:07 -07:00
signal.c [PATCH] x86_64: signal.c build fix 2005-05-28 11:13:59 -07:00
smp.c [PATCH] x86_64: Switch SMP bootup over to new CPU hotplug state machine 2005-04-16 15:25:19 -07:00
smpboot.c [PATCH] x86_64: i386/x86-64: Export cpu_core_map 2005-05-20 15:48:21 -07:00
suspend_asm.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
suspend.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sys_x86_64.c [PATCH] Avoiding mmap fragmentation 2005-06-21 18:46:16 -07:00
syscall.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
time.c [PATCH] x86_64: fix hpet for systems that don't support legacy replacement 2005-06-23 09:45:12 -07:00
trampoline.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
traps.c [PATCH] x86_64: CONFIG_BUG=n fixes 2005-05-25 15:31:28 -07:00
vmlinux.lds.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vsyscall.c [PATCH] x86_64: Make vsyscall.c compile without CONFIG_SYSCTL 2005-05-17 07:59:16 -07:00
x8664_ksyms.c [PATCH] x86_64: CONFIG_BUG=n fixes 2005-05-25 15:31:28 -07:00