/**
* Flush caches as necessary for all cores affected by a
* vma. If no vma is supplied, all cores are flushed.
*
* @vma: VMA to flush or NULL to flush all icaches.
*/
static void octeon_flush_icache_all_cores(struct vm_area_struct *vma)
{
extern void octeon_send_ipi_single(int cpu, unsigned int action);
#ifdef CONFIG_SMP
int cpu;
cpumask_t mask;
#endif
mb();
octeon_local_flush_icache();
#ifdef CONFIG_SMP
preempt_disable();
cpu = smp_processor_id();
/*
* If we have a vma structure, we only need to worry about
* cores it has been used on
*/
if (vma)
mask = *mm_cpumask(vma->vm_mm);
else
mask = cpu_online_map;
cpu_clear(cpu, mask);
for_each_cpu_mask(cpu, mask)
octeon_send_ipi_single(cpu, SMP_ICACHE_FLUSH);
preempt_enable();
#endif
}
static inline void octeon_send_ipi_mask(const struct cpumask *mask,
unsigned int action)
{
unsigned int i;
for_each_cpu(i, mask)
octeon_send_ipi_single(i, action);
}
