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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef __ASM_SH_MMU_CONTEXT_32_H |
| 3 | #define __ASM_SH_MMU_CONTEXT_32_H |
| 4 | |
| 5 | #ifdef CONFIG_CPU_HAS_PTEAEX |
| 6 | static inline void set_asid(unsigned long asid) |
| 7 | { |
| 8 | __raw_writel(asid, MMU_PTEAEX); |
| 9 | } |
| 10 | |
| 11 | static inline unsigned long get_asid(void) |
| 12 | { |
| 13 | return __raw_readl(MMU_PTEAEX) & MMU_CONTEXT_ASID_MASK; |
| 14 | } |
| 15 | #else |
| 16 | static inline void set_asid(unsigned long asid) |
| 17 | { |
| 18 | unsigned long __dummy; |
| 19 | |
| 20 | __asm__ __volatile__ ("mov.l %2, %0\n\t" |
| 21 | "and %3, %0\n\t" |
| 22 | "or %1, %0\n\t" |
| 23 | "mov.l %0, %2" |
| 24 | : "=&r" (__dummy) |
| 25 | : "r" (asid), "m" (__m(MMU_PTEH)), |
| 26 | "r" (0xffffff00)); |
| 27 | } |
| 28 | |
| 29 | static inline unsigned long get_asid(void) |
| 30 | { |
| 31 | unsigned long asid; |
| 32 | |
| 33 | __asm__ __volatile__ ("mov.l %1, %0" |
| 34 | : "=r" (asid) |
| 35 | : "m" (__m(MMU_PTEH))); |
| 36 | asid &= MMU_CONTEXT_ASID_MASK; |
| 37 | return asid; |
| 38 | } |
| 39 | #endif /* CONFIG_CPU_HAS_PTEAEX */ |
| 40 | |
| 41 | /* MMU_TTB is used for optimizing the fault handling. */ |
| 42 | static inline void set_TTB(pgd_t *pgd) |
| 43 | { |
| 44 | __raw_writel((unsigned long)pgd, MMU_TTB); |
| 45 | } |
| 46 | |
| 47 | static inline pgd_t *get_TTB(void) |
| 48 | { |
| 49 | return (pgd_t *)__raw_readl(MMU_TTB); |
| 50 | } |
| 51 | #endif /* __ASM_SH_MMU_CONTEXT_32_H */ |
| 52 |
Warning: This file is not a C or C++ file. It does not have highlighting.