[linux-2.6-block.git] / arch / powerpc / include / asm / book3s / 64 / slice.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_BOOK3S_64_SLICE_H
#define _ASM_POWERPC_BOOK3S_64_SLICE_H

#ifdef CONFIG_PPC_MM_SLICES

#define SLICE_LOW_SHIFT		28
#define SLICE_LOW_TOP		(0x100000000ul)
#define SLICE_NUM_LOW		(SLICE_LOW_TOP >> SLICE_LOW_SHIFT)
#define GET_LOW_SLICE_INDEX(addr)	((addr) >> SLICE_LOW_SHIFT)

#define SLICE_HIGH_SHIFT	40
#define SLICE_NUM_HIGH		(H_PGTABLE_RANGE >> SLICE_HIGH_SHIFT)
#define GET_HIGH_SLICE_INDEX(addr)	((addr) >> SLICE_HIGH_SHIFT)

#else /* CONFIG_PPC_MM_SLICES */

#define get_slice_psize(mm, addr)	((mm)->context.user_psize)
#define slice_set_user_psize(mm, psize)		\
do {						\
	(mm)->context.user_psize = (psize);	\
	(mm)->context.sllp = SLB_VSID_USER | mmu_psize_defs[(psize)].sllp; \
} while (0)

#endif /* CONFIG_PPC_MM_SLICES */

#endif /* _ASM_POWERPC_BOOK3S_64_SLICE_H */
Commit	Line	Data
a3286f05 CL	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	#ifndef _ASM_POWERPC_BOOK3S_64_SLICE_H
	3	#define _ASM_POWERPC_BOOK3S_64_SLICE_H
	4
	5	#ifdef CONFIG_PPC_MM_SLICES
	6
	7	#define SLICE_LOW_SHIFT 28
	8	#define SLICE_LOW_TOP (0x100000000ul)
	9	#define SLICE_NUM_LOW (SLICE_LOW_TOP >> SLICE_LOW_SHIFT)
	10	#define GET_LOW_SLICE_INDEX(addr) ((addr) >> SLICE_LOW_SHIFT)
	11
	12	#define SLICE_HIGH_SHIFT 40
	13	#define SLICE_NUM_HIGH (H_PGTABLE_RANGE >> SLICE_HIGH_SHIFT)
	14	#define GET_HIGH_SLICE_INDEX(addr) ((addr) >> SLICE_HIGH_SHIFT)
	15
	16	#else /* CONFIG_PPC_MM_SLICES */
	17
	18	#define get_slice_psize(mm, addr) ((mm)->context.user_psize)
	19	#define slice_set_user_psize(mm, psize) \
	20	do { \
	21	(mm)->context.user_psize = (psize); \
	22	(mm)->context.sllp = SLB_VSID_USER \| mmu_psize_defs[(psize)].sllp; \
	23	} while (0)
	24
	25	#endif /* CONFIG_PPC_MM_SLICES */
	26
	27	#endif /* _ASM_POWERPC_BOOK3S_64_SLICE_H */