* smp_call_function(): Run a function on all other CPUs.
* @func: The function to run. This must be fast and non-blocking.
* @info: An arbitrary pointer to pass to the function.
- * @nonatomic: currently unused.
* @wait: If true, wait (atomically) until function has completed on other CPUs.
*
* Returns 0 on success, else a negative status code. Does not return until
* You must not call this function with disabled interrupts or from a
* hardware interrupt handler or from a bottom half handler.
*/
-static int smp_call_function_mask(void (*func)(void *info), void *info,
- int nonatomic, int wait, cpumask_t mask)
+static int sparc64_smp_call_function_mask(void (*func)(void *info), void *info,
+ int wait, cpumask_t mask)
{
struct call_data_struct data;
int cpus;
return 0;
}
-int smp_call_function(void (*func)(void *info), void *info,
- int nonatomic, int wait)
+int smp_call_function(void (*func)(void *info), void *info, int wait)
{
- return smp_call_function_mask(func, info, nonatomic, wait,
- cpu_online_map);
+ return sparc64_smp_call_function_mask(func, info, wait, cpu_online_map);
}
void smp_call_function_client(int irq, struct pt_regs *regs)
void *info = call_data->info;
clear_softint(1 << irq);
-
- irq_enter();
-
- if (!call_data->wait) {
- /* let initiator proceed after getting data */
- atomic_inc(&call_data->finished);
- }
-
- func(info);
-
- irq_exit();
-
if (call_data->wait) {
/* let initiator proceed only after completion */
+ func(info);
+ atomic_inc(&call_data->finished);
+ } else {
+ /* let initiator proceed after getting data */
atomic_inc(&call_data->finished);
+ func(info);
}
}
void smp_tsb_sync(struct mm_struct *mm)
{
- smp_call_function_mask(tsb_sync, mm, 0, 1, mm->cpu_vm_mask);
+ sparc64_smp_call_function_mask(tsb_sync, mm, 1, mm->cpu_vm_mask);
}
extern unsigned long xcall_flush_tlb_mm;
extern unsigned long xcall_flush_tlb_pending;
extern unsigned long xcall_flush_tlb_kernel_range;
extern unsigned long xcall_report_regs;
+#ifdef CONFIG_MAGIC_SYSRQ
+extern unsigned long xcall_fetch_glob_regs;
+#endif
extern unsigned long xcall_receive_signal;
extern unsigned long xcall_new_mmu_context_version;
#ifdef CONFIG_KGDB
void smp_receive_signal_client(int irq, struct pt_regs *regs)
{
- irq_enter();
clear_softint(1 << irq);
- irq_exit();
}
void smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
struct mm_struct *mm;
unsigned long flags;
- irq_enter();
-
clear_softint(1 << irq);
/* See if we need to allocate a new TLB context because
load_secondary_context(mm);
__flush_tlb_mm(CTX_HWBITS(mm->context),
SECONDARY_CONTEXT);
-
- irq_exit();
}
void smp_new_mmu_context_version(void)
smp_cross_call(&xcall_report_regs, 0, 0, 0);
}
+#ifdef CONFIG_MAGIC_SYSRQ
+void smp_fetch_global_regs(void)
+{
+ smp_cross_call(&xcall_fetch_glob_regs, 0, 0, 0);
+}
+#endif
+
/* We know that the window frames of the user have been flushed
* to the stack before we get here because all callers of us
* are flush_tlb_*() routines, and these run after flush_cache_*()
{
clear_softint(1 << irq);
- irq_enter();
-
preempt_disable();
__asm__ __volatile__("flushw");
prom_world(0);
preempt_enable();
-
- irq_exit();
}
/* /proc/profile writes can call this, don't __init it please. */