Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
3d2d827f MT |
2 | #ifndef _LINUX_MMU_CONTEXT_H |
3 | #define _LINUX_MMU_CONTEXT_H | |
4 | ||
f98db601 | 5 | #include <asm/mmu_context.h> |
bf9282dc | 6 | #include <asm/mmu.h> |
f98db601 | 7 | |
f98db601 AL |
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 | ||
bf9282dc PZ |
13 | #ifndef leave_mm |
14 | static inline void leave_mm(int cpu) { } | |
15 | #endif | |
16 | ||
9ae606bc WD |
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 | ||
f7d30434 KS |
31 | #ifndef mm_untag_mask |
32 | static inline unsigned long mm_untag_mask(struct mm_struct *mm) | |
33 | { | |
34 | return -1UL; | |
35 | } | |
36 | #endif | |
37 | ||
23e5d9ec KS |
38 | #ifndef arch_pgtable_dma_compat |
39 | static inline bool arch_pgtable_dma_compat(struct mm_struct *mm) | |
40 | { | |
41 | return true; | |
42 | } | |
43 | #endif | |
44 | ||
3d2d827f | 45 | #endif |