Viewing file:  mmu_context.h (1.06 KB) -rw-r--r--
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/* 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
#ifndef mm_untag_mask
static inline unsigned long mm_untag_mask(struct mm_struct *mm)
{
return -1UL;
}
#endif
#ifndef arch_pgtable_dma_compat
static inline bool arch_pgtable_dma_compat(struct mm_struct *mm)
{
return true;
}
#endif
#endif
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