1 files changed, 111 insertions, 0 deletions

diff --git a/include/asm-mips/smp.h b/include/asm-mips/smp.h
new file mode 100644
index 000000000000..8ba370ecfd4c
--- /dev/null
+++ b/include/asm-mips/smp.h
@@ -0,0 +1,111 @@
+/*
+ * 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) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com)
+ * Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
+ * Copyright (C) 2000, 2001, 2002 Ralf Baechle
+ * Copyright (C) 2000, 2001 Broadcom Corporation
+ */
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#include <linux/config.h>
+
+#ifdef CONFIG_SMP
+
+#include <linux/bitops.h>
+#include <linux/linkage.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <asm/atomic.h>
+
+#define smp_processor_id()      (current_thread_info()->cpu)
+
+/* Map from cpu id to sequential logical cpu number.  This will only
+   not be idempotent when cpus failed to come on-line.  */
+extern int __cpu_number_map[NR_CPUS];
+#define cpu_number_map(cpu)  __cpu_number_map[cpu]
+
+/* The reverse map from sequential logical cpu number to cpu id.  */
+extern int __cpu_logical_map[NR_CPUS];
+#define cpu_logical_map(cpu)  __cpu_logical_map[cpu]
+
+#define NO_PROC_ID      (-1)
+
+struct call_data_struct {
+        void            (*func)(void *);
+        void            *info;
+        atomic_t        started;
+        atomic_t        finished;
+        int             wait;
+};
+
+extern struct call_data_struct *call_data;
+
+#define SMP_RESCHEDULE_YOURSELF 0x1     /* XXX braindead */
+#define SMP_CALL_FUNCTION       0x2
+
+extern cpumask_t phys_cpu_present_map;
+extern cpumask_t cpu_online_map;
+#define cpu_possible_map        phys_cpu_present_map
+
+extern cpumask_t cpu_callout_map;
+/* We don't mark CPUs online until __cpu_up(), so we need another measure */
+static inline int num_booting_cpus(void)
+{
+        return cpus_weight(cpu_callout_map);
+}
+
+/* These are defined by the board-specific code. */
+
+/*
+ * Cause the function described by call_data to be executed on the passed
+ * cpu.  When the function has finished, increment the finished field of
+ * call_data.
+ */
+extern void core_send_ipi(int cpu, unsigned int action);
+
+/*
+ * Firmware CPU startup hook
+ */
+extern void prom_boot_secondary(int cpu, struct task_struct *idle);
+
+/*
+ *  After we've done initial boot, this function is called to allow the
+ *  board code to clean up state, if needed
+ */
+extern void prom_init_secondary(void);
+
+/*
+ * Detect available CPUs, populate phys_cpu_present_map before smp_init
+ */
+extern void prom_prepare_cpus(unsigned int max_cpus);
+
+/*
+ * Last chance for the board code to finish SMP initialization before
+ * the CPU is "online".
+ */
+extern void prom_smp_finish(void);
+
+/* Hook for after all CPUs are online */
+extern void prom_cpus_done(void);
+
+extern void asmlinkage smp_bootstrap(void);
+
+/*
+ * this function sends a 'reschedule' IPI to another CPU.
+ * it goes straight through and wastes no time serializing
+ * anything. Worst case is that we lose a reschedule ...
+ */
+static inline void smp_send_reschedule(int cpu)
+{
+        core_send_ipi(cpu, SMP_RESCHEDULE_YOURSELF);
+}
+
+extern asmlinkage void smp_call_function_interrupt(void);
+
+#endif /* CONFIG_SMP */
+
+#endif /* __ASM_SMP_H */