| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | #ifndef _ASM_X86_MMU_H |
| 2 | #define _ASM_X86_MMU_H |
| 3 | |
| 4 | #include <linux/spinlock.h> |
| 5 | #include <linux/mutex.h> |
| 6 | |
| 7 | /* |
| 8 | * The x86 doesn't have a mmu context, but |
| 9 | * we put the segment information here. |
| 10 | */ |
| 11 | typedef struct { |
| 12 | #ifdef CONFIG_MODIFY_LDT_SYSCALL |
| 13 | struct ldt_struct *ldt; |
| 14 | #endif |
| 15 | |
| 16 | #ifdef CONFIG_X86_64 |
| 17 | /* True if mm supports a task running in 32 bit compatibility mode. */ |
| 18 | unsigned short ia32_compat; |
| 19 | #endif |
| 20 | |
| 21 | struct mutex lock; |
| 22 | void __user *vdso; |
| 23 | |
| 24 | atomic_t perf_rdpmc_allowed; /* nonzero if rdpmc is allowed */ |
| 25 | } mm_context_t; |
| 26 | |
| 27 | #ifdef CONFIG_SMP |
| 28 | void leave_mm(int cpu); |
| 29 | #else |
| 30 | static inline void leave_mm(int cpu) |
| 31 | { |
| 32 | } |
| 33 | #endif |
| 34 | |
| 35 | #endif /* _ASM_X86_MMU_H */ |