LXR linux/include/linux/mmu

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_MMU_CONTEXT_H
   3#define _LINUX_MMU_CONTEXT_H
   4
   5#include <asm/mmu_context.h>
   6#include <asm/mmu.h>
   7
   8/* Architectures that care about IRQ state in switch_mm can override this. */
   9#ifndef switch_mm_irqs_off
  10# define switch_mm_irqs_off switch_mm
  11#endif
  12
  13#ifndef leave_mm
  14static inline void leave_mm(int cpu) { }
  15#endif
  16
  17/*
  18 * CPUs that are capable of running user task @p. Must contain at least one
  19 * active CPU. It is assumed that the kernel can run on all CPUs, so calling
  20 * this for a kernel thread is pointless.
  21 *
  22 * By default, we assume a sane, homogeneous system.
  23 */
  24#ifndef task_cpu_possible_mask
  25# define task_cpu_possible_mask(p)      cpu_possible_mask
  26# define task_cpu_possible(cpu, p)      true
  27#else
  28# define task_cpu_possible(cpu, p)      cpumask_test_cpu((cpu), task_cpu_possible_mask(p))
  29#endif
  30
  31#endif
  32