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authorJohn Keller <jpk@sgi.com>2007-08-23 04:32:06 +0400
committerTony Luck <tony.luck@intel.com>2007-09-01 13:49:57 +0400
commit6e9de18120988388cdae5097c09e774416d58745 (patch)
tree04f7de7bee8d38a4e871970afda136bb5ac853be /include/asm-ia64
parent1aac0b5739ae192ee812eee09625ebfc08c2d760 (diff)
downloadlinux-6e9de18120988388cdae5097c09e774416d58745.tar.xz
[IA64] SN: Add support for CPU disable
Add additional support for CPU disable on SN platforms. Correctly setup the smp_affinity mask for I/O error IRQs. Restrict the use of the feature to Altix 4000 and 450 systems running with a CPU disable capable PROM, and do not allow disabling of CPU 0. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/sn/arch.h1
-rw-r--r--include/asm-ia64/sn/intr.h1
-rw-r--r--include/asm-ia64/sn/sn_feature_sets.h1
3 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-ia64/sn/arch.h b/include/asm-ia64/sn/arch.h
index 16adc93d7a72..7caa1f44cd95 100644
--- a/include/asm-ia64/sn/arch.h
+++ b/include/asm-ia64/sn/arch.h
@@ -81,5 +81,6 @@ extern u8 sn_sharing_domain_size;
extern u8 sn_region_size;
extern void sn_flush_all_caches(long addr, long bytes);
+extern bool sn_cpu_disable_allowed(int cpu);
#endif /* _ASM_IA64_SN_ARCH_H */
diff --git a/include/asm-ia64/sn/intr.h b/include/asm-ia64/sn/intr.h
index 12b54ddb06be..e0487aa97418 100644
--- a/include/asm-ia64/sn/intr.h
+++ b/include/asm-ia64/sn/intr.h
@@ -60,6 +60,7 @@ extern u64 sn_intr_alloc(nasid_t, int,
int, nasid_t, int);
extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
+extern void sn_set_err_irq_affinity(unsigned int);
extern struct list_head **sn_irq_lh;
#define CPU_VECTOR_TO_IRQ(cpuid,vector) (vector)
diff --git a/include/asm-ia64/sn/sn_feature_sets.h b/include/asm-ia64/sn/sn_feature_sets.h
index bfdc36273ed4..8e83ac117ace 100644
--- a/include/asm-ia64/sn/sn_feature_sets.h
+++ b/include/asm-ia64/sn/sn_feature_sets.h
@@ -31,6 +31,7 @@ extern int sn_prom_feature_available(int id);
#define PRF_PAL_CACHE_FLUSH_SAFE 0
#define PRF_DEVICE_FLUSH_LIST 1
#define PRF_HOTPLUG_SUPPORT 2
+#define PRF_CPU_DISABLE_SUPPORT 3
/* --------------------- OS Features -------------------------------*/