diff options
| author | Ashok Raj | 2005-11-11 23:32:40 +0100 |
|---|---|---|
| committer | Tony Luck | 2006-01-05 19:24:20 +0100 |
| commit | ff741906ad3cf4b8ca1a958acb013a97a6381ca2 (patch) | |
| tree | 66a4c2dbacd4c10015824a6789f9206693003092 /arch/ia64/kernel/irq.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6 (diff) | |
| download | kernel-qcow2-linux-ff741906ad3cf4b8ca1a958acb013a97a6381ca2.tar.gz kernel-qcow2-linux-ff741906ad3cf4b8ca1a958acb013a97a6381ca2.tar.xz kernel-qcow2-linux-ff741906ad3cf4b8ca1a958acb013a97a6381ca2.zip | |
[IA64] support for cpu0 removal
here is the BSP removal support for IA64. Its pretty much the same thing that
was released a while back, but has your feedback incorporated.
- Removed CONFIG_BSP_REMOVE_WORKAROUND and associated cmdline param
- Fixed compile issue with sn2/zx1 due to a undefined fix_b0_for_bsp
- some formatting nits (whitespace etc)
This has been tested on tiger and long back by alex on hp systems as well.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/irq.c')
| -rw-r--r-- | arch/ia64/kernel/irq.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c index d33244c32759..5ce908ef9c95 100644 --- a/arch/ia64/kernel/irq.c +++ b/arch/ia64/kernel/irq.c @@ -163,8 +163,19 @@ void fixup_irqs(void) { unsigned int irq; extern void ia64_process_pending_intr(void); + extern void ia64_disable_timer(void); + extern volatile int time_keeper_id; + + ia64_disable_timer(); + + /* + * Find a new timesync master + */ + if (smp_processor_id() == time_keeper_id) { + time_keeper_id = first_cpu(cpu_online_map); + printk ("CPU %d is now promoted to time-keeper master\n", time_keeper_id); + } - ia64_set_itv(1<<16); /* * Phase 1: Locate irq's bound to this cpu and * relocate them for cpu removal. |