diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2013-10-17 02:42:26 +0400 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2014-01-14 10:19:58 -0800 |
| commit | f615136c06a791364f5afa8b8ba965315a6440f1 (patch) | |
| tree | d9ced4cfdfd13438ce23384fbd64006bb74fd8b6 /arch/xtensa/include/asm/smp.h | |
| parent | 26a8e96a8b37e8070fa9dcb1b7490cf4d4492d50 (diff) | |
| download | blackbird-op-linux-f615136c06a791364f5afa8b8ba965315a6440f1.tar.gz blackbird-op-linux-f615136c06a791364f5afa8b8ba965315a6440f1.zip | |
xtensa: add SMP support
This is largely based on SMP code from the xtensa-2.6.29-smp tree by
Piet Delaney, Marc Gauthier, Joe Taylor, Christian Zankel (and possibly
other Tensilica folks).
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/include/asm/smp.h')
| -rw-r--r-- | arch/xtensa/include/asm/smp.h | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/arch/xtensa/include/asm/smp.h b/arch/xtensa/include/asm/smp.h index 83c569e3bdbd..30ac58cc70df 100644 --- a/arch/xtensa/include/asm/smp.h +++ b/arch/xtensa/include/asm/smp.h @@ -1,27 +1,34 @@ /* - * include/asm-xtensa/smp.h - * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (C) 2001 - 2005 Tensilica Inc. + * Copyright (C) 2001 - 2013 Tensilica Inc. */ #ifndef _XTENSA_SMP_H #define _XTENSA_SMP_H -extern struct xtensa_cpuinfo boot_cpu_data; +#ifdef CONFIG_SMP -#define cpu_data (&boot_cpu_data) -#define current_cpu_data boot_cpu_data +#define raw_smp_processor_id() (current_thread_info()->cpu) +#define cpu_logical_map(cpu) (cpu) -struct xtensa_cpuinfo { - unsigned long *pgd_cache; - unsigned long *pte_cache; - unsigned long pgtable_cache_sz; +struct start_info { + unsigned long stack; }; +extern struct start_info start_info; -#define cpu_logical_map(cpu) (cpu) +struct cpumask; +void arch_send_call_function_ipi_mask(const struct cpumask *mask); +void arch_send_call_function_single_ipi(int cpu); + +void smp_init_cpus(void); +void secondary_init_irq(void); +void ipi_init(void); +struct seq_file; +void show_ipi_list(struct seq_file *p, int prec); + +#endif /* CONFIG_SMP */ #endif /* _XTENSA_SMP_H */ |
