Warning: This file is not a C or C++ file. It does not have highlighting.
| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | |
| 3 | #ifndef __ASM_CSKY_MMU_CONTEXT_H |
| 4 | #define __ASM_CSKY_MMU_CONTEXT_H |
| 5 | |
| 6 | #include <asm-generic/mm_hooks.h> |
| 7 | #include <asm/setup.h> |
| 8 | #include <asm/page.h> |
| 9 | #include <asm/cacheflush.h> |
| 10 | #include <asm/tlbflush.h> |
| 11 | |
| 12 | #include <linux/errno.h> |
| 13 | #include <linux/sched.h> |
| 14 | #include <abi/ckmmu.h> |
| 15 | |
| 16 | #define ASID_MASK ((1 << CONFIG_CPU_ASID_BITS) - 1) |
| 17 | #define cpu_asid(mm) (atomic64_read(&mm->context.asid) & ASID_MASK) |
| 18 | |
| 19 | #define init_new_context(tsk,mm) ({ atomic64_set(&(mm)->context.asid, 0); 0; }) |
| 20 | |
| 21 | void check_and_switch_context(struct mm_struct *mm, unsigned int cpu); |
| 22 | |
| 23 | static inline void |
| 24 | switch_mm(struct mm_struct *prev, struct mm_struct *next, |
| 25 | struct task_struct *tsk) |
| 26 | { |
| 27 | unsigned int cpu = smp_processor_id(); |
| 28 | |
| 29 | if (prev != next) |
| 30 | check_and_switch_context(next, cpu); |
| 31 | |
| 32 | setup_pgd(next->pgd, next->context.asid.counter); |
| 33 | |
| 34 | flush_icache_deferred(next); |
| 35 | } |
| 36 | |
| 37 | #include <asm-generic/mmu_context.h> |
| 38 | |
| 39 | #endif /* __ASM_CSKY_MMU_CONTEXT_H */ |
| 40 |
Warning: This file is not a C or C++ file. It does not have highlighting.