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[IA64-SGI] - Pass OS logical cpu number to the SN prom (bios)

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Pass the OS logical cpu number to the PROM. This allows PROM
to log the OS logical cpu number in error records viewed thru POD.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Jack Steiner 2006-04-27 20:01:05 -05:00 committed by Tony Luck
parent f1206641ef
commit 9d56d878ae
2 changed files with 18 additions and 2 deletions
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10
arch/ia64/sn/kernel/setup.c
View File

@ -577,7 +577,8 @@ void __init sn_cpu_init(void)
int i;
static int wars_have_been_checked;
if (smp_processor_id() == 0 && IS_MEDUSA()) {
cpuid = smp_processor_id();
if (cpuid == 0 && IS_MEDUSA()) {
if (ia64_sn_is_fake_prom())
sn_prom_type = 2;
else
@ -596,6 +597,12 @@ void __init sn_cpu_init(void)
BUG();
sn_hub_info->as_shift = sn_hub_info->nasid_shift - 2;
/*
* Don't check status. The SAL call is not supported on all PROMs
* but a failure is harmless.
*/
(void) ia64_sn_set_cpu_number(cpuid);
/*
* The boot cpu makes this call again after platform initialization is
* complete.
@ -607,7 +614,6 @@ void __init sn_cpu_init(void)
if (ia64_sn_get_prom_feature_set(i, &sn_prom_features[i]) != 0)
break;
cpuid = smp_processor_id();
cpuphyid = get_sapicid();
if (ia64_sn_get_sapic_info(cpuphyid, &nasid, &subnode, &slice))

10
include/asm-ia64/sn/sn_sal.h
View File

@ -85,6 +85,7 @@
#define SN_SAL_GET_PROM_FEATURE_SET 0x02000065
#define SN_SAL_SET_OS_FEATURE_SET 0x02000066
#define SN_SAL_INJECT_ERROR 0x02000067
#define SN_SAL_SET_CPU_NUMBER 0x02000068
/*
* Service-specific constants
@ -1150,4 +1151,13 @@ sn_inject_error(u64 paddr, u64 *data, u64 *ecc)
local_irq_restore(irq_flags);
return ret_stuff.status;
}
static inline int
ia64_sn_set_cpu_number(int cpu)
{
struct ia64_sal_retval rv;
SAL_CALL_NOLOCK(rv, SN_SAL_SET_CPU_NUMBER, cpu, 0, 0, 0, 0, 0, 0);
return rv.status;
}
#endif /* _ASM_IA64_SN_SN_SAL_H */