1. 29 5月, 2005 1 次提交
    • B
      [PATCH] ppc32: Fix cpufreq vs. sleep issue · b16eeb47
      Benjamin Herrenschmidt 提交于
      Recent kernels occasionally trigger a PMU timeout on some mac laptops,
      typically on wakeup from sleep.  This seem to be caused by either a too big
      latency caused by the cpufreq switch on wakeup from sleep or by an
      interrupt beeing lost due to the reset of the interrupt controller done
      during wakeup.
      
      This patch makes that code more robust by stopping PMU auto poll activity
      around cpufreq changes on machines that use the PMU for such changes (long
      latency switching involving a CPU hard reset and flush of all caches) and
      by removing the reset of the open pic interrupt controller on wakeup (that
      can cause the loss of an interrupt and Darwin doesn't do it, so it must not
      be necessary).
      Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      b16eeb47
  2. 26 5月, 2005 2 次提交
  3. 02 5月, 2005 1 次提交
  4. 01 5月, 2005 1 次提交
  5. 17 4月, 2005 4 次提交