7 #include <linux/mm.h>
18 extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
20 extern void destroy_context(struct mm_struct *mm);
24 extern bool mm_iommu_preregistered(struct mm_struct *mm);
25 extern long mm_iommu_new(struct mm_struct *mm,
28 extern long mm_iommu_newdev(struct mm_struct *mm, unsigned long ua,
31 extern long mm_iommu_put(struct mm_struct *mm,
33 extern void mm_iommu_init(struct mm_struct *mm);
34 extern struct mm_iommu_table_group_mem_t *mm_iommu_lookup(struct mm_struct *mm,
36 extern struct mm_iommu_table_group_mem_t *mm_iommu_get(struct mm_struct *mm,
40 extern bool mm_iommu_is_devmem(struct mm_struct *mm, unsigned long hpa,
45 static inline bool mm_iommu_is_devmem(struct mm_struct *mm, unsigned long hpa,  in mm_iommu_is_devmem()  argument
50 static inline void mm_iommu_init(struct mm_struct *mm) { }  in mm_iommu_init()  argument
52 extern void switch_slb(struct task_struct *tsk, struct mm_struct *mm);
72 static inline int alloc_extended_context(struct mm_struct *mm,  in alloc_extended_context()  argument
83 	VM_WARN_ON(mm->context.extended_id[index]);  in alloc_extended_context()
84 	mm->context.extended_id[index] = context_id;  in alloc_extended_context()
88 static inline bool need_extra_context(struct mm_struct *mm, unsigned long ea)  in need_extra_context()  argument
92 	context_id = get_user_context(&mm->context, ea);  in need_extra_context()
105 static inline int alloc_extended_context(struct mm_struct *mm,  in alloc_extended_context()  argument
113 static inline bool need_extra_context(struct mm_struct *mm, unsigned long ea)  in need_extra_context()  argument
119 extern int use_cop(unsigned long acop, struct mm_struct *mm);
120 extern void drop_cop(unsigned long acop, struct mm_struct *mm);
123 static inline void inc_mm_active_cpus(struct mm_struct *mm)  in inc_mm_active_cpus()  argument
125 	atomic_inc(&mm->context.active_cpus);  in inc_mm_active_cpus()
128 static inline void dec_mm_active_cpus(struct mm_struct *mm)  in dec_mm_active_cpus()  argument
130 	VM_WARN_ON_ONCE(atomic_read(&mm->context.active_cpus) <= 0);  in dec_mm_active_cpus()
131 	atomic_dec(&mm->context.active_cpus);  in dec_mm_active_cpus()
134 static inline void mm_context_add_copro(struct mm_struct *mm)  in mm_context_add_copro()  argument
141 	if (atomic_inc_return(&mm->context.copros) == 1)  in mm_context_add_copro()
142 		inc_mm_active_cpus(mm);  in mm_context_add_copro()
145 static inline void mm_context_remove_copro(struct mm_struct *mm)  in mm_context_remove_copro()  argument
151 	 * flush of the full mm, as the next TLBI may be local and the  in mm_context_remove_copro()
168 		radix__flush_all_mm(mm);  in mm_context_remove_copro()
170 		c = atomic_dec_if_positive(&mm->context.copros);  in mm_context_remove_copro()
175 			dec_mm_active_cpus(mm);  in mm_context_remove_copro()
180  * vas_windows counter shows number of open windows in the mm
190 static inline void mm_context_add_vas_window(struct mm_struct *mm)  in mm_context_add_vas_window()  argument
192 	atomic_inc(&mm->context.vas_windows);  in mm_context_add_vas_window()
193 	mm_context_add_copro(mm);  in mm_context_add_vas_window()
196 static inline void mm_context_remove_vas_window(struct mm_struct *mm)  in mm_context_remove_vas_window()  argument
200 	mm_context_remove_copro(mm);  in mm_context_remove_vas_window()
201 	v = atomic_dec_if_positive(&mm->context.vas_windows);  in mm_context_remove_vas_window()
207 static inline void inc_mm_active_cpus(struct mm_struct *mm) { }  in inc_mm_active_cpus()  argument
208 static inline void dec_mm_active_cpus(struct mm_struct *mm) { }  in dec_mm_active_cpus()  argument
209 static inline void mm_context_add_copro(struct mm_struct *mm) { }  in mm_context_add_copro()  argument
210 static inline void mm_context_remove_copro(struct mm_struct *mm) { }  in mm_context_remove_copro()  argument
241  * After we have set current->mm to a new value, this activates
242  * the context for the new mm so we see the new mappings.
253 static inline void enter_lazy_tlb(struct mm_struct *mm,  in enter_lazy_tlb()  argument
261 extern void arch_exit_mmap(struct mm_struct *mm);
263 static inline void arch_unmap(struct mm_struct *mm,  in arch_unmap()  argument
266 	unsigned long vdso_base = (unsigned long)mm->context.vdso;  in arch_unmap()
269 		mm->context.vdso = NULL;  in arch_unmap()
275 void arch_dup_pkeys(struct mm_struct *oldmm, struct mm_struct *mm);
284 #define pkey_mm_init(mm)  argument
285 #define arch_dup_pkeys(oldmm, mm)  argument
295 				struct mm_struct *mm)  in arch_dup_mmap()  argument
297 	arch_dup_pkeys(oldmm, mm);  in arch_dup_mmap()