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| author | Konrad Eisele <konrad@gaisler.com> | 2009-08-31 22:08:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-02 04:19:42 -0800 |
| commit | 8401707ff645521e9f21cbb8fe3b138f60e85680 (patch) | |
| tree | 114287cf273b57f96d0e132cd2274c7afe60b120 /arch/sparc/include/asm | |
| parent | b6727b12dd2ffb4a890eb5b13a298230c29ba45d (diff) | |
| download | linux-8401707ff645521e9f21cbb8fe3b138f60e85680.tar.bz2 | |
sparc,leon: Sparc-Leon SMP support
Support SMP for a Sparc-Leon multiprocessor system.
Add Leon specific SMP code to arch/sparc/kernel/leon_smp.c.
Signed-off-by: Konrad Eisele <konrad@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm')
| -rw-r--r-- | arch/sparc/include/asm/leon.h | 28 | ||||
| -rw-r--r-- | arch/sparc/include/asm/smp_32.h | 9 |
2 files changed, 37 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h index 28a42b73f64f..559448c2c434 100644 --- a/arch/sparc/include/asm/leon.h +++ b/arch/sparc/include/asm/leon.h @@ -340,6 +340,30 @@ extern int leon_flush_needed(void); extern void leon_switch_mm(void); extern int srmmu_swprobe_trace; +#ifdef CONFIG_SMP +extern int leon_smp_nrcpus(void); +extern void leon_clear_profile_irq(int cpu); +extern void leon_smp_done(void); +extern void leon_boot_cpus(void); +extern int leon_boot_one_cpu(int i); +void leon_init_smp(void); +extern void cpu_probe(void); +extern void cpu_idle(void); +extern void init_IRQ(void); +extern void cpu_panic(void); +extern int __leon_processor_id(void); +void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu); + +extern unsigned int real_irq_entry[], smpleon_ticker[]; +extern unsigned int patchme_maybe_smp_msg[]; +extern unsigned long trapbase_cpu1[]; +extern unsigned long trapbase_cpu2[]; +extern unsigned long trapbase_cpu3[]; +extern unsigned int t_nmi[], linux_trap_ipi15_leon[]; +extern unsigned int linux_trap_ipi15_sun4m[]; + +#endif /* CONFIG_SMP */ + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ @@ -356,6 +380,10 @@ extern int srmmu_swprobe_trace; #define leon_switch_mm() do {} while (0) #define leon_init_IRQ() do {} while (0) #define init_leon() do {} while (0) +#define leon_smp_done() do {} while (0) +#define leon_boot_cpus() do {} while (0) +#define leon_boot_one_cpu(i) 1 +#define leon_init_smp() do {} while (0) #endif /* !defined(CONFIG_SPARC_LEON) */ diff --git a/arch/sparc/include/asm/smp_32.h b/arch/sparc/include/asm/smp_32.h index 58101dc70493..841905c10215 100644 --- a/arch/sparc/include/asm/smp_32.h +++ b/arch/sparc/include/asm/smp_32.h @@ -106,6 +106,15 @@ static inline int hard_smp4d_processor_id(void) return cpuid; } +extern inline int hard_smpleon_processor_id(void) +{ + int cpuid; + __asm__ __volatile__("rd %%asr17,%0\n\t" + "srl %0,28,%0" : + "=&r" (cpuid) : ); + return cpuid; +} + #ifndef MODULE static inline int hard_smp_processor_id(void) { |