sparc64: Convert to generic helpers for IPI function calls.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index c099d96..7cf72b4 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -788,89 +788,36 @@
0, 0, 0, mask);
}
+extern unsigned long xcall_call_function;
+
+void arch_send_call_function_ipi(cpumask_t mask)
+{
+ smp_cross_call_masked(&xcall_call_function, 0, 0, 0, mask);
+}
+
+extern unsigned long xcall_call_function_single;
+
+void arch_send_call_function_single_ipi(int cpu)
+{
+ cpumask_t mask = cpumask_of_cpu(cpu);
+
+ smp_cross_call_masked(&xcall_call_function_single, 0, 0, 0, mask);
+}
+
/* Send cross call to all processors except self. */
#define smp_cross_call(func, ctx, data1, data2) \
smp_cross_call_masked(func, ctx, data1, data2, cpu_online_map)
-struct call_data_struct {
- void (*func) (void *info);
- void *info;
- atomic_t finished;
- int wait;
-};
-
-static struct call_data_struct *call_data;
-
-extern unsigned long xcall_call_function;
-
-/**
- * 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.
- * @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
- * remote CPUs are nearly ready to execute <<func>> or are or have executed.
- *
- * You must not call this function with disabled interrupts or from a
- * hardware interrupt handler or from a bottom half handler.
- */
-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;
-
- /* Can deadlock when called with interrupts disabled */
- WARN_ON(irqs_disabled());
-
- data.func = func;
- data.info = info;
- atomic_set(&data.finished, 0);
- data.wait = wait;
-
- spin_lock(&call_lock);
-
- cpu_clear(smp_processor_id(), mask);
- cpus = cpus_weight(mask);
- if (!cpus)
- goto out_unlock;
-
- call_data = &data;
- mb();
-
- smp_cross_call_masked(&xcall_call_function, 0, 0, 0, mask);
-
- /* Wait for response */
- while (atomic_read(&data.finished) != cpus)
- cpu_relax();
-
-out_unlock:
- spin_unlock(&call_lock);
-
- return 0;
-}
-
-int smp_call_function(void (*func)(void *info), void *info, int wait)
-{
- return sparc64_smp_call_function_mask(func, info, wait, cpu_online_map);
-}
-
void smp_call_function_client(int irq, struct pt_regs *regs)
{
- void (*func) (void *info) = call_data->func;
- void *info = call_data->info;
-
clear_softint(1 << irq);
- 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);
- }
+ generic_smp_call_function_interrupt();
+}
+
+void smp_call_function_single_client(int irq, struct pt_regs *regs)
+{
+ clear_softint(1 << irq);
+ generic_smp_call_function_single_interrupt();
}
static void tsb_sync(void *info)
@@ -890,7 +837,7 @@
void smp_tsb_sync(struct mm_struct *mm)
{
- sparc64_smp_call_function_mask(tsb_sync, mm, 1, mm->cpu_vm_mask);
+ smp_call_function_mask(mm->cpu_vm_mask, tsb_sync, mm, 1);
}
extern unsigned long xcall_flush_tlb_mm;