3  *  MMU context allocation for 64-bit kernels.
38 	WARN(result != id, "mmu: Failed to reserve context id %d (rc %d)\n", id, result);  in hash__reserve_context_id()
96 	mm->context.hash_context = kmalloc(sizeof(struct hash_mm_context),  in hash__init_new_context()
98 	if (!mm->context.hash_context)  in hash__init_new_context()
107 	 * explicitly against context.id == 0. This ensures that we properly  in hash__init_new_context()
108 	 * initialize context slice details for newly allocated mm's (which will  in hash__init_new_context()
109 	 * have id == 0) and don't alter context slice inherited via fork (which  in hash__init_new_context()
115 	if (mm->context.id == 0) {  in hash__init_new_context()
116 		memset(mm->context.hash_context, 0, sizeof(struct hash_mm_context));  in hash__init_new_context()
120 …memcpy(mm->context.hash_context, current->mm->context.hash_context, sizeof(struct hash_mm_context)…  in hash__init_new_context()
123 		if (current->mm->context.hash_context->spt) {  in hash__init_new_context()
124 			mm->context.hash_context->spt = kmalloc(sizeof(struct subpage_prot_table),  in hash__init_new_context()
126 			if (!mm->context.hash_context->spt) {  in hash__init_new_context()
127 				kfree(mm->context.hash_context);  in hash__init_new_context()
134 	index = realloc_context_ids(&mm->context);  in hash__init_new_context()
137 		kfree(mm->context.hash_context->spt);  in hash__init_new_context()
139 		kfree(mm->context.hash_context);  in hash__init_new_context()
178 	mm->context.hash_context = NULL;  in radix__init_new_context()
195 	mm->context.id = index;  in init_new_context()
197 	mm->context.pte_frag = NULL;  in init_new_context()
198 	mm->context.pmd_frag = NULL;  in init_new_context()
202 	atomic_set(&mm->context.active_cpus, 0);  in init_new_context()
203 	atomic_set(&mm->context.copros, 0);  in init_new_context()
245 	frag = mm->context.pte_frag;  in destroy_pagetable_cache()
249 	frag = mm->context.pmd_frag;  in destroy_pagetable_cache()
258 	WARN_ON_ONCE(!list_empty(&mm->context.iommu_group_mem_list));  in destroy_context()
274 		process_tb[mm->context.id].prtb0 = 0;  in destroy_context()
277 	destroy_contexts(&mm->context);  in destroy_context()
278 	mm->context.id = MMU_NO_CONTEXT;  in destroy_context()
300 		process_tb[mm->context.id].prtb0 = 0;  in arch_exit_mmap()
307 	mtspr(SPRN_PID, next->context.id);  in radix__switch_mmu_context()