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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-alpha/smp.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-alpha/smp.h')
-rw-r--r-- | include/asm-alpha/smp.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/include/asm-alpha/smp.h b/include/asm-alpha/smp.h new file mode 100644 index 000000000000..cbc173ae45aa --- /dev/null +++ b/include/asm-alpha/smp.h @@ -0,0 +1,63 @@ +#ifndef __ASM_SMP_H +#define __ASM_SMP_H + +#include <linux/config.h> +#include <linux/threads.h> +#include <linux/cpumask.h> +#include <linux/bitops.h> +#include <asm/pal.h> + +/* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */ + +static __inline__ unsigned char +__hard_smp_processor_id(void) +{ + register unsigned char __r0 __asm__("$0"); + __asm__ __volatile__( + "call_pal %1 #whami" + : "=r"(__r0) + :"i" (PAL_whami) + : "$1", "$22", "$23", "$24", "$25"); + return __r0; +} + +#ifdef CONFIG_SMP + +#include <asm/irq.h> + +struct cpuinfo_alpha { + unsigned long loops_per_jiffy; + unsigned long last_asn; + int need_new_asn; + int asn_lock; + unsigned long ipi_count; + unsigned long prof_multiplier; + unsigned long prof_counter; + unsigned char mcheck_expected; + unsigned char mcheck_taken; + unsigned char mcheck_extra; +} __attribute__((aligned(64))); + +extern struct cpuinfo_alpha cpu_data[NR_CPUS]; + +#define PROC_CHANGE_PENALTY 20 + +#define hard_smp_processor_id() __hard_smp_processor_id() +#define smp_processor_id() (current_thread_info()->cpu) + +extern cpumask_t cpu_present_mask; +extern cpumask_t cpu_online_map; +extern int smp_num_cpus; +#define cpu_possible_map cpu_present_mask + +int smp_call_function_on_cpu(void (*func) (void *info), void *info,int retry, int wait, cpumask_t cpu); + +#else /* CONFIG_SMP */ + +#define smp_call_function_on_cpu(func,info,retry,wait,cpu) ({ 0; }) + +#endif /* CONFIG_SMP */ + +#define NO_PROC_ID (-1) + +#endif |