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- /*
- * Copyright (C) 2012 ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
- #ifndef __ASM_SMP_H
- #define __ASM_SMP_H
- #include <linux/threads.h>
- #include <linux/cpumask.h>
- #include <linux/thread_info.h>
- #ifndef CONFIG_SMP
- # error "<asm/smp.h> included in non-SMP build"
- #endif
- #define raw_smp_processor_id() (current_thread_info()->cpu)
- struct seq_file;
- /*
- * generate IPI list text
- */
- extern void show_ipi_list(struct seq_file *p, int prec);
- /*
- * Called from C code, this handles an IPI.
- */
- extern void handle_IPI(int ipinr, struct pt_regs *regs);
- /*
- * Setup the set of possible CPUs (via set_cpu_possible)
- */
- extern void smp_init_cpus(void);
- /*
- * Provide a function to raise an IPI cross call on CPUs in callmap.
- */
- extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
- /*
- * Called from the secondary holding pen, this is the secondary CPU entry point.
- */
- asmlinkage void secondary_start_kernel(void);
- /*
- * Initial data for bringing up a secondary CPU.
- */
- struct secondary_data {
- void *stack;
- };
- extern struct secondary_data secondary_data;
- extern void secondary_holding_pen(void);
- extern volatile unsigned long secondary_holding_pen_release;
- extern void arch_send_call_function_single_ipi(int cpu);
- extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
- struct device_node;
- struct smp_enable_ops {
- const char *name;
- int (*init_cpu)(struct device_node *, int);
- int (*prepare_cpu)(int);
- };
- extern const struct smp_enable_ops smp_spin_table_ops;
- extern const struct smp_enable_ops smp_psci_ops;
- #endif /* ifndef __ASM_SMP_H */
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