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authorPaul Mackerras <paulus@samba.org>2005-11-05 10:33:55 +1100
committerPaul Mackerras <paulus@samba.org>2005-11-05 10:33:55 +1100
commit5ad570786158e327a1c5d32dd3d66f26d8de6340 (patch)
tree0b4aafe469c72e5887ed0379d62a0ee390db3160 /include
parentc3df69cd854551cf70e9c63aa509c26621084f60 (diff)
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powerpc: Merge smp.c and smp.h
This also moves setup_cpu_maps to setup-common.c (calling it smp_setup_cpu_maps) and uses it on both 32-bit and 64-bit. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/smp.h (renamed from include/asm-ppc64/smp.h)37
1 files changed, 32 insertions, 5 deletions
diff --git a/include/asm-ppc64/smp.h b/include/asm-powerpc/smp.h
index ba0f5c8bbb2..8bcdd0faefe 100644
--- a/include/asm-ppc64/smp.h
+++ b/include/asm-powerpc/smp.h
@@ -1,5 +1,5 @@
/*
- * smp.h: PPC64 specific SMP code.
+ * smp.h: PowerPC-specific SMP code.
*
* Original was a copy of sparc smp.h. Now heavily modified
* for PPC.
@@ -13,9 +13,9 @@
* 2 of the License, or (at your option) any later version.
*/
+#ifndef _ASM_POWERPC_SMP_H
+#define _ASM_POWERPC_SMP_H
#ifdef __KERNEL__
-#ifndef _PPC64_SMP_H
-#define _PPC64_SMP_H
#include <linux/config.h>
#include <linux/threads.h>
@@ -24,7 +24,9 @@
#ifndef __ASSEMBLY__
+#ifdef CONFIG_PPC64
#include <asm/paca.h>
+#endif
extern int boot_cpuid;
extern int boot_cpuid_phys;
@@ -45,8 +47,19 @@ void generic_cpu_die(unsigned int cpu);
void generic_mach_cpu_die(void);
#endif
+#ifdef CONFIG_PPC64
#define raw_smp_processor_id() (get_paca()->paca_index)
#define hard_smp_processor_id() (get_paca()->hw_cpu_id)
+#else
+/* 32-bit */
+extern int smp_hw_index[];
+
+#define raw_smp_processor_id() (current_thread_info()->cpu)
+#define hard_smp_processor_id() (smp_hw_index[smp_processor_id()])
+#define get_hard_smp_processor_id(cpu) (smp_hw_index[(cpu)])
+#define set_hard_smp_processor_id(cpu, phys)\
+ (smp_hw_index[(cpu)] = (phys))
+#endif
extern cpumask_t cpu_sibling_map[NR_CPUS];
@@ -65,21 +78,35 @@ extern cpumask_t cpu_sibling_map[NR_CPUS];
void smp_init_iSeries(void);
void smp_init_pSeries(void);
void smp_init_cell(void);
+void smp_setup_cpu_maps(void);
extern int __cpu_disable(void);
extern void __cpu_die(unsigned int cpu);
+
+#else
+/* for UP */
+#define smp_setup_cpu_maps()
+#define smp_release_cpus()
+
#endif /* CONFIG_SMP */
+#ifdef CONFIG_PPC64
#define get_hard_smp_processor_id(CPU) (paca[(CPU)].hw_cpu_id)
#define set_hard_smp_processor_id(CPU, VAL) \
do { (paca[(CPU)].hw_cpu_id = (VAL)); } while (0)
+#else
+/* 32-bit */
+#ifndef CONFIG_SMP
+#define get_hard_smp_processor_id(cpu) boot_cpuid_phys
+#define set_hard_smp_processor_id(cpu, phys)
+#endif
+#endif
extern int smt_enabled_at_boot;
extern int smp_mpic_probe(void);
extern void smp_mpic_setup_cpu(int cpu);
extern void smp_generic_kick_cpu(int nr);
-extern void smp_release_cpus(void);
extern void smp_generic_give_timebase(void);
extern void smp_generic_take_timebase(void);
@@ -88,5 +115,5 @@ extern struct smp_ops_t *smp_ops;
#endif /* __ASSEMBLY__ */
-#endif /* !(_PPC64_SMP_H) */
#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_SMP_H) */