+/*
+ * All cpu broadcast.
+ * Called from thread context, this blocks until all active cpus have
+ * run action_func:
+ */
+extern void mp_broadcast(
+ void (*action_func)(void *),
+ void *arg);
+#if MACH_KDP
+typedef long (*kdp_x86_xcpu_func_t) (void *arg0, void *arg1, uint16_t lcpu);
+
+extern long kdp_x86_xcpu_invoke(const uint16_t lcpu,
+ kdp_x86_xcpu_func_t func,
+ void *arg0, void *arg1);
+typedef enum {KDP_XCPU_NONE = 0xffff, KDP_CURRENT_LCPU = 0xfffe} kdp_cpu_t;
+#endif
+
+typedef uint32_t cpu_t;
+typedef volatile long cpumask_t;
+static inline cpumask_t
+cpu_to_cpumask(cpu_t cpu)
+{
+ return (cpu < 32) ? (1 << cpu) : 0;
+}
+#define CPUMASK_ALL 0xffffffff
+#define CPUMASK_SELF cpu_to_cpumask(cpu_number())
+#define CPUMASK_OTHERS (CPUMASK_ALL & ~CPUMASK_SELF)
+
+/* Initialation routing called at processor registration */
+extern void mp_cpus_call_cpu_init(int cpu);
+
+/*
+ * Invoke a function (possibly NULL) on a set of cpus specified by a mask.
+ * The mask may include the local cpu.
+ * If the mode is:
+ * - ASYNC: other cpus make their calls in parallel
+ * - SYNC: the calls are performed serially in logical cpu order
+ * - NOSYNC: the calls are queued
+ * Unless the mode is NOSYNC, mp_cpus_call() returns when the function has been
+ * called on all specified cpus.
+ * The return value is the number of cpus where the call was made or queued.
+ * The action function is called with interrupts disabled.
+ */
+extern cpu_t mp_cpus_call(
+ cpumask_t cpus,
+ mp_sync_t mode,
+ void (*action_func)(void *),
+ void *arg);
+extern cpu_t mp_cpus_call1(
+ cpumask_t cpus,
+ mp_sync_t mode,
+ void (*action_func)(void *, void*),
+ void *arg0,
+ void *arg1,
+ cpumask_t *cpus_calledp,
+ cpumask_t *cpus_notcalledp);
+
+extern void mp_cpus_NMIPI(cpumask_t cpus);
+
+/* Interrupt a set of cpus, forcing an exit out of non-root mode */
+extern void mp_cpus_kick(cpumask_t cpus);
+/*
+ * Power-management-specific SPI to:
+ * - register a callout function, and
+ * - request the callout (if registered) on a given cpu.
+ */
+extern void PM_interrupt_register(void (*fn)(void));
+extern void cpu_PM_interrupt(int cpu);
+
projects / apple / xnu.git / blobdiff