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[IA64] support for cpu0 removal

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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>
This commit is contained in:
Ashok Raj
2005-11-11 14:32:40 -08:00
committed by Tony Luck
parent db9edfd7e3
commit ff741906ad
12 changed files with 183 additions and 18 deletions
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9
arch/ia64/mm/discontig.c
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@@ -528,12 +528,17 @@ void __init find_memory(void)
void *per_cpu_init(void)
{
int cpu;
static int first_time = 1;
if (smp_processor_id() != 0)
return __per_cpu_start + __per_cpu_offset[smp_processor_id()];
for (cpu = 0; cpu < NR_CPUS; cpu++)
per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];
if (first_time) {
first_time = 0;
for (cpu = 0; cpu < NR_CPUS; cpu++)
per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];
}
return __per_cpu_start + __per_cpu_offset[smp_processor_id()];
}