linux-dev/arch/x86_64/kernel/time.c, branch master

x86_64: prepare shared kernel/time.c

2007-10-11T09:14:54Z

Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar

x86_64: use the global PIT lock

2007-07-22T01:37:12Z

Replace the pcspkr private PIT lock by the global PIT lock to serialize the PIT access all over the place. Signed-off-by: Thomas Gleixner Cc: Ingo Molnar Cc: Dmitry Torokhov Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds

x86_64: time.c white space wreckage cleanup

2007-07-22T01:37:09Z

Signed-off-by: Thomas Gleixner Signed-off-by: Chris Wright Signed-off-by: Ingo Molnar Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds

x86_64: Use generic xtime init

2007-07-22T01:37:08Z

xtime can be initialized including the cmos update from the generic timekeeping code. Remove the arch specific implementation. Signed-off-by: Thomas Gleixner Signed-off-by: Chris Wright Signed-off-by: Ingo Molnar Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds

x86_64: use generic cmos update

2007-07-22T01:37:08Z

Use the generic cmos update function in kernel/time/ntp.c Cc: john stultz Signed-off-by: Thomas Gleixner Signed-off-by: Chris Wright Signed-off-by: Ingo Molnar Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds

x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu

2007-07-22T01:37:08Z

This implements new vDSO for x86-64. The concept is similar to the existing vDSOs on i386 and PPC. x86-64 has had static vsyscalls before, but these are not flexible enough anymore. A vDSO is a ELF shared library supplied by the kernel that is mapped into user address space. The vDSO mapping is randomized for each process for security reasons. Doing this was needed for clock_gettime, because clock_gettime always needs a syscall fallback and having one at a fixed address would have made buffer overflow exploits too easy to write. The vdso can be disabled with vdso=0 It currently includes a new gettimeofday implemention and optimized clock_gettime(). The gettimeofday implementation is slightly faster than the one in the old vsyscall. clock_gettime is significantly faster than the syscall for CLOCK_MONOTONIC and CLOCK_REALTIME. The new calls are generally faster than the old vsyscall. Advantages over the old x86-64 vsyscalls: - Extensible - Randomized - Cleaner - Easier to virtualize (the old static address range previously causes overhead e.g. for Xen because it has to create special page tables for it) Weak points: - glibc support still to be written The VM interface is partly based on Ingo Molnar's i386 version. Includes compile fix from Joachim Deguara Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds

Add IRQF_IRQPOLL flag on x86_64

2007-05-08T18:15:22Z

Add IRQF_IRQPOLL for the timer interrupt on x86_64. Signed-off-by: Bernhard Walle Cc: Andi Kleen Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] x86-64: Fix "Section mismatch" compile warning

2007-05-02T17:27:11Z

Fix "Section mismatch" warnings in arch/x86_64/kernel/time.c Signed-off-by: Bernhard Walle Signed-off-by: Andi Kleen

[PATCH] x86: Log reason why TSC was marked unstable

2007-05-02T17:27:08Z

Change mark_tsc_unstable() so it takes a string argument, which holds the reason the TSC was marked unstable. This is then displayed the first time mark_tsc_unstable is called. This should help us better debug why the TSC was marked unstable on certain systems and allow us to make sure we're not being overly paranoid when throwing out this troublesome clocksource. Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen

[PATCH] x86-64: fix cpu MHz reporting on constant_tsc cpus

2007-05-02T17:27:06Z

This patch fixes the reporting of cpu_mhz in /proc/cpuinfo on CPUs with a constant TSC rate and a kernel with disabled cpufreq. Signed-off-by: Mark Langsdorf Signed-off-by: Joerg Roedel Signed-off-by: Andi Kleen arch/x86_64/kernel/apic.c | 2 - arch/x86_64/kernel/time.c | 58 +++++++++++++++++++++++++++++++++++++++--- arch/x86_64/kernel/tsc.c | 12 +++++--- arch/x86_64/kernel/tsc_sync.c | 2 - include/asm-x86_64/proto.h | 1 5 files changed, 65 insertions(+), 10 deletions(-)