diff options
Diffstat (limited to 'include/linux/mmu_context.h')
| -rw-r--r-- | include/linux/mmu_context.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/linux/mmu_context.h b/include/linux/mmu_context.h new file mode 100644 index 000000000..b9b970f7a --- /dev/null +++ b/include/linux/mmu_context.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_MMU_CONTEXT_H +#define _LINUX_MMU_CONTEXT_H + +#include <asm/mmu_context.h> +#include <asm/mmu.h> + +/* Architectures that care about IRQ state in switch_mm can override this. */ +#ifndef switch_mm_irqs_off +# define switch_mm_irqs_off switch_mm +#endif + +#ifndef leave_mm +static inline void leave_mm(int cpu) { } +#endif + +/* + * CPUs that are capable of running user task @p. Must contain at least one + * active CPU. It is assumed that the kernel can run on all CPUs, so calling + * this for a kernel thread is pointless. + * + * By default, we assume a sane, homogeneous system. + */ +#ifndef task_cpu_possible_mask +# define task_cpu_possible_mask(p) cpu_possible_mask +# define task_cpu_possible(cpu, p) true +#else +# define task_cpu_possible(cpu, p) cpumask_test_cpu((cpu), task_cpu_possible_mask(p)) +#endif + +#endif |