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ARC: [SMP] cpumask not needed in IPI send path

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The current IPI sending callstack needlessly involves cpumask.

   arch_send_call_function_single_ipi(cpu) / smp_send_reschedule(cpu)
      ipi_send_msg(cpumask_of(cpu))	--> [cpu to cpumask]
         plat_smp_ops.ipi_send(callmap)
            for_each_cpu(callmap)	--> [cpuask to cpu]
               do_plat_specific_ipi_PER_CPU

Given that current backends are not capable of 1:N IPIs, lets simplify
the interface for now, by keeping "a" cpu all along.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta
2013-11-25 12:59:03 +05:30
parent 413541dd66
commit ddf84433f4
3 changed files with 18 additions and 17 deletions
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8
arch/arc/plat-arcfpga/smp.c
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@@ -88,13 +88,9 @@ void iss_model_init_smp(unsigned int cpu)
smp_ipi_irq_setup(cpu, IDU_INTERRUPT_0 + cpu);
}
static void iss_model_ipi_send(void *arg)
static void iss_model_ipi_send(int cpu)
{
struct cpumask *callmap = arg;
unsigned int cpu;
for_each_cpu(cpu, callmap)
idu_irq_assert(cpu);
idu_irq_assert(cpu);
}
static void iss_model_ipi_clear(int cpu, int irq)