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	struct mmu_kobj {			struct mmu_kobj {
	const char *name;			const char *name;
	const struct mmu_kobj *base;			const struct mmu_kobj *base;
	const struct pmap_funcs *funcs;			const struct pmap_funcs *funcs;
	};			};

	typedef struct mmu_kobj *mmu_t;			typedef struct mmu_kobj *mmu_t;

				/* The currently installed pmap object. */
				extern mmu_t mmu_obj;

				/*
				* Resolve a given pmap function.
				* 'func' is the function name less the 'pmap_' * prefix.
				*/
				#define PMAP_RESOLVE_FUNC(func) \
				({ \
				pmap_##func##_t f; \
				const struct mmu_kobj *mmu = mmu_obj; \
				do { \
				f = mmu->funcs->func; \
				if (f != NULL) break; \
				mmu = mmu->base; \
				} while (mmu != NULL); \
				f;})


	#define MMU_DEF(name, ident, methods) \			#define MMU_DEF(name, ident, methods) \
	\			\
	const struct mmu_kobj name = { \			const struct mmu_kobj name = { \
	ident, NULL, &methods \			ident, NULL, &methods \
	}; \			}; \
	DATA_SET(mmu_set, name)			DATA_SET(mmu_set, name)

	#define MMU_DEF_INHERIT(name, ident, methods, base1) \			#define MMU_DEF_INHERIT(name, ident, methods, base1) \
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