1. 06 Nov, 2008 6 commits
  2. 27 Oct, 2008 3 commits
    • Mike Travis's avatar
      x86/uv: update SCIR driver to use the idle_cpu() function · 69a72a0e
      Mike Travis authored
      Impact: cleanup
      
      Change UV heartbeat function to use idle_cpu to determine cpu's
      "idleness".  Realign uv_hub definitions.
      Signed-of-by: default avatarMike Travis <travis@sgi.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      69a72a0e
    • Mike Travis's avatar
      x86/uv: provide a System Activity Indicator driver · 7f1baa06
      Mike Travis authored
      Impact: start per CPU heartbeat LED timers on SGI UV systems
      
      The SGI UV system has no LEDS but uses one of the system controller
      regs to indicate the online internal state of the cpu.  There is a
      heartbeat bit indicating that the cpu is responding to interrupts,
      and an idle bit indicating whether the cpu is idle when the heartbeat
      interrupt occurs.  The current period is one second.
      
      When a cpu panics, an error code is written by BIOS to this same reg.
      
      This patchset provides the following:
      
        * x86_64: Add base functionality for writing to the specific SCIR's
          for each cpu.
      
        * heartbeat: Invert "heartbeat" bit to indicate the cpu is
          "interruptible".  If the current thread is the idle thread,
          then indicate system is "idle".
      
        * if hotplug enabled, all bits are set (0xff) when the cpu is disabled.
      Signed-off-by: default avatarMike Travis <travis@sgi.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      7f1baa06
    • Ingo Molnar's avatar
      Merge commit 'v2.6.28-rc2' into x86/uv · 5292ae11
      Ingo Molnar authored
      5292ae11
  3. 26 Oct, 2008 21 commits
  4. 24 Oct, 2008 6 commits
  5. 23 Oct, 2008 4 commits