30 Sep, 2006

1 commit

• 34596dc9e   [PATCH] Define vsyscall cache as blob to make clearer that user space shouldn't use it ... Browse Code »

  Signed-off-by: Andi Kleen

  Andi Kleen

  2006-09-30 07:47:55 +0800  

26 Sep, 2006

1 commit

• c08c82050   [PATCH] Add the vgetcpu vsyscall ... Browse Code »

  This patch adds a vgetcpu vsyscall, which depending on the CPU RDTSCP
  capability uses either the RDTSCP or CPUID to obtain a CPU and node
  numbers and pass them to the program.

  AK: Lots of changes over Vojtech's original code:
  Better prototype for vgetcpu()
  It's better to pass the cpu / node numbers as separate arguments
  to avoid mistakes when going from SMP to NUMA.
  Also add a fast time stamp based cache using a user supplied
  argument to speed things more up.
  Use fast method from Chuck Ebbert to retrieve node/cpu from
  GDT limit instead of CPUID
  Made sure RDTSCP init is always executed after node is known.
  Drop printk

  Signed-off-by: Vojtech Pavlik
  Signed-off-by: Andi Kleen

  Vojtech Pavlik

  2006-09-26 16:52:28 +0800