[thirdparty/kernel/linux.git] / arch / powerpc / include / asm / mmu-book3e.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_MMU_BOOK3E_H_
#define _ASM_POWERPC_MMU_BOOK3E_H_
/*
 * Freescale Book-E/Book-3e (ISA 2.06+) MMU support
 */

/* Book-3e defined page sizes */
#define BOOK3E_PAGESZ_1K	0
#define BOOK3E_PAGESZ_2K	1
#define BOOK3E_PAGESZ_4K	2
#define BOOK3E_PAGESZ_8K	3
#define BOOK3E_PAGESZ_16K	4
#define BOOK3E_PAGESZ_32K	5
#define BOOK3E_PAGESZ_64K	6
#define BOOK3E_PAGESZ_128K	7
#define BOOK3E_PAGESZ_256K	8
#define BOOK3E_PAGESZ_512K	9
#define BOOK3E_PAGESZ_1M	10
#define BOOK3E_PAGESZ_2M	11
#define BOOK3E_PAGESZ_4M	12
#define BOOK3E_PAGESZ_8M	13
#define BOOK3E_PAGESZ_16M	14
#define BOOK3E_PAGESZ_32M	15
#define BOOK3E_PAGESZ_64M	16
#define BOOK3E_PAGESZ_128M	17
#define BOOK3E_PAGESZ_256M	18
#define BOOK3E_PAGESZ_512M	19
#define BOOK3E_PAGESZ_1GB	20
#define BOOK3E_PAGESZ_2GB	21
#define BOOK3E_PAGESZ_4GB	22
#define BOOK3E_PAGESZ_8GB	23
#define BOOK3E_PAGESZ_16GB	24
#define BOOK3E_PAGESZ_32GB	25
#define BOOK3E_PAGESZ_64GB	26
#define BOOK3E_PAGESZ_128GB	27
#define BOOK3E_PAGESZ_256GB	28
#define BOOK3E_PAGESZ_512GB	29
#define BOOK3E_PAGESZ_1TB	30
#define BOOK3E_PAGESZ_2TB	31

/* MAS registers bit definitions */

#define MAS0_TLBSEL_MASK	0x30000000
#define MAS0_TLBSEL_SHIFT	28
#define MAS0_TLBSEL(x)		(((x) << MAS0_TLBSEL_SHIFT) & MAS0_TLBSEL_MASK)
#define MAS0_GET_TLBSEL(mas0)	(((mas0) & MAS0_TLBSEL_MASK) >> \
			MAS0_TLBSEL_SHIFT)
#define MAS0_ESEL_MASK		0x0FFF0000
#define MAS0_ESEL_SHIFT		16
#define MAS0_ESEL(x)		(((x) << MAS0_ESEL_SHIFT) & MAS0_ESEL_MASK)
#define MAS0_NV(x)		((x) & 0x00000FFF)
#define MAS0_HES		0x00004000
#define MAS0_WQ_ALLWAYS		0x00000000
#define MAS0_WQ_COND		0x00001000
#define MAS0_WQ_CLR_RSRV       	0x00002000

#define MAS1_VALID		0x80000000
#define MAS1_IPROT		0x40000000
#define MAS1_TID(x)		(((x) << 16) & 0x3FFF0000)
#define MAS1_IND		0x00002000
#define MAS1_TS			0x00001000
#define MAS1_TSIZE_MASK		0x00000f80
#define MAS1_TSIZE_SHIFT	7
#define MAS1_TSIZE(x)		(((x) << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK)
#define MAS1_GET_TSIZE(mas1)	(((mas1) & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT)

#define MAS2_EPN		(~0xFFFUL)
#define MAS2_X0			0x00000040
#define MAS2_X1			0x00000020
#define MAS2_W			0x00000010
#define MAS2_I			0x00000008
#define MAS2_M			0x00000004
#define MAS2_G			0x00000002
#define MAS2_E			0x00000001
#define MAS2_WIMGE_MASK		0x0000001f
#define MAS2_EPN_MASK(size)		(~0 << (size + 10))
#define MAS2_VAL(addr, size, flags)	((addr) & MAS2_EPN_MASK(size) | (flags))

#define MAS3_RPN		0xFFFFF000
#define MAS3_U0			0x00000200
#define MAS3_U1			0x00000100
#define MAS3_U2			0x00000080
#define MAS3_U3			0x00000040
#define MAS3_UX			0x00000020
#define MAS3_SX			0x00000010
#define MAS3_UW			0x00000008
#define MAS3_SW			0x00000004
#define MAS3_UR			0x00000002
#define MAS3_SR			0x00000001
#define MAS3_BAP_MASK		0x0000003f
#define MAS3_SPSIZE		0x0000003e
#define MAS3_SPSIZE_SHIFT	1

#define MAS4_TLBSEL_MASK	MAS0_TLBSEL_MASK
#define MAS4_TLBSELD(x) 	MAS0_TLBSEL(x)
#define MAS4_INDD		0x00008000	/* Default IND */
#define MAS4_TSIZED(x)		MAS1_TSIZE(x)
#define MAS4_X0D		0x00000040
#define MAS4_X1D		0x00000020
#define MAS4_WD			0x00000010
#define MAS4_ID			0x00000008
#define MAS4_MD			0x00000004
#define MAS4_GD			0x00000002
#define MAS4_ED			0x00000001
#define MAS4_WIMGED_MASK	0x0000001f	/* Default WIMGE */
#define MAS4_WIMGED_SHIFT	0
#define MAS4_VLED		MAS4_X1D	/* Default VLE */
#define MAS4_ACMD		0x000000c0	/* Default ACM */
#define MAS4_ACMD_SHIFT		6
#define MAS4_TSIZED_MASK	0x00000f80	/* Default TSIZE */
#define MAS4_TSIZED_SHIFT	7

#define MAS5_SGS		0x80000000

#define MAS6_SPID0		0x3FFF0000
#define MAS6_SPID1		0x00007FFE
#define MAS6_ISIZE(x)		MAS1_TSIZE(x)
#define MAS6_SAS		0x00000001
#define MAS6_SPID		MAS6_SPID0
#define MAS6_SIND 		0x00000002	/* Indirect page */
#define MAS6_SIND_SHIFT		1
#define MAS6_SPID_MASK		0x3fff0000
#define MAS6_SPID_SHIFT		16
#define MAS6_ISIZE_MASK		0x00000f80
#define MAS6_ISIZE_SHIFT	7

#define MAS7_RPN		0xFFFFFFFF

#define MAS8_TGS		0x80000000 /* Guest space */
#define MAS8_VF			0x40000000 /* Virtualization Fault */
#define MAS8_TLPID		0x000000ff

/* Bit definitions for MMUCFG */
#define MMUCFG_MAVN	0x00000003	/* MMU Architecture Version Number */
#define MMUCFG_MAVN_V1	0x00000000	/* v1.0 */
#define MMUCFG_MAVN_V2	0x00000001	/* v2.0 */
#define MMUCFG_NTLBS	0x0000000c	/* Number of TLBs */
#define MMUCFG_PIDSIZE	0x000007c0	/* PID Reg Size */
#define MMUCFG_TWC	0x00008000	/* TLB Write Conditional (v2.0) */
#define MMUCFG_LRAT	0x00010000	/* LRAT Supported (v2.0) */
#define MMUCFG_RASIZE	0x00fe0000	/* Real Addr Size */
#define MMUCFG_LPIDSIZE	0x0f000000	/* LPID Reg Size */

/* Bit definitions for MMUCSR0 */
#define MMUCSR0_TLB1FI	0x00000002	/* TLB1 Flash invalidate */
#define MMUCSR0_TLB0FI	0x00000004	/* TLB0 Flash invalidate */
#define MMUCSR0_TLB2FI	0x00000040	/* TLB2 Flash invalidate */
#define MMUCSR0_TLB3FI	0x00000020	/* TLB3 Flash invalidate */
#define MMUCSR0_TLBFI	(MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \
			 MMUCSR0_TLB2FI | MMUCSR0_TLB3FI)
#define MMUCSR0_TLB0PS	0x00000780	/* TLB0 Page Size */
#define MMUCSR0_TLB1PS	0x00007800	/* TLB1 Page Size */
#define MMUCSR0_TLB2PS	0x00078000	/* TLB2 Page Size */
#define MMUCSR0_TLB3PS	0x00780000	/* TLB3 Page Size */

/* MMUCFG bits */
#define MMUCFG_MAVN_NASK	0x00000003
#define MMUCFG_MAVN_V1_0	0x00000000
#define MMUCFG_MAVN_V2_0	0x00000001
#define MMUCFG_NTLB_MASK	0x0000000c
#define MMUCFG_NTLB_SHIFT	2
#define MMUCFG_PIDSIZE_MASK	0x000007c0
#define MMUCFG_PIDSIZE_SHIFT	6
#define MMUCFG_TWC		0x00008000
#define MMUCFG_LRAT		0x00010000
#define MMUCFG_RASIZE_MASK	0x00fe0000
#define MMUCFG_RASIZE_SHIFT	17
#define MMUCFG_LPIDSIZE_MASK	0x0f000000
#define MMUCFG_LPIDSIZE_SHIFT	24

/* TLBnCFG encoding */
#define TLBnCFG_N_ENTRY		0x00000fff	/* number of entries */
#define TLBnCFG_HES		0x00002000	/* HW select supported */
#define TLBnCFG_IPROT		0x00008000	/* IPROT supported */
#define TLBnCFG_GTWE		0x00010000	/* Guest can write */
#define TLBnCFG_IND		0x00020000	/* IND entries supported */
#define TLBnCFG_PT		0x00040000	/* Can load from page table */
#define TLBnCFG_MINSIZE		0x00f00000	/* Minimum Page Size (v1.0) */
#define TLBnCFG_MINSIZE_SHIFT	20
#define TLBnCFG_MAXSIZE		0x000f0000	/* Maximum Page Size (v1.0) */
#define TLBnCFG_MAXSIZE_SHIFT	16
#define TLBnCFG_ASSOC		0xff000000	/* Associativity */
#define TLBnCFG_ASSOC_SHIFT	24

/* TLBnPS encoding */
#define TLBnPS_4K		0x00000004
#define TLBnPS_8K		0x00000008
#define TLBnPS_16K		0x00000010
#define TLBnPS_32K		0x00000020
#define TLBnPS_64K		0x00000040
#define TLBnPS_128K		0x00000080
#define TLBnPS_256K		0x00000100
#define TLBnPS_512K		0x00000200
#define TLBnPS_1M 		0x00000400
#define TLBnPS_2M 		0x00000800
#define TLBnPS_4M 		0x00001000
#define TLBnPS_8M 		0x00002000
#define TLBnPS_16M		0x00004000
#define TLBnPS_32M		0x00008000
#define TLBnPS_64M		0x00010000
#define TLBnPS_128M		0x00020000
#define TLBnPS_256M		0x00040000
#define TLBnPS_512M		0x00080000
#define TLBnPS_1G		0x00100000
#define TLBnPS_2G		0x00200000
#define TLBnPS_4G		0x00400000
#define TLBnPS_8G		0x00800000
#define TLBnPS_16G		0x01000000
#define TLBnPS_32G		0x02000000
#define TLBnPS_64G		0x04000000
#define TLBnPS_128G		0x08000000
#define TLBnPS_256G		0x10000000

/* tlbilx action encoding */
#define TLBILX_T_ALL			0
#define TLBILX_T_TID			1
#define TLBILX_T_FULLMATCH		3
#define TLBILX_T_CLASS0			4
#define TLBILX_T_CLASS1			5
#define TLBILX_T_CLASS2			6
#define TLBILX_T_CLASS3			7

#ifndef __ASSEMBLY__
#include <asm/bug.h>

extern unsigned int tlbcam_index;

typedef struct {
	unsigned int	id;
	unsigned int	active;
	unsigned long	vdso_base;
#ifdef CONFIG_PPC_64K_PAGES
	/* for 4K PTE fragment support */
	void *pte_frag;
#endif
} mm_context_t;

/* Page size definitions, common between 32 and 64-bit
 *
 *    shift : is the "PAGE_SHIFT" value for that page size
 *    penc  : is the pte encoding mask
 *
 */
struct mmu_psize_def
{
	unsigned int	shift;	/* number of bits */
	unsigned int	enc;	/* PTE encoding */
	unsigned int    ind;    /* Corresponding indirect page size shift */
	unsigned int	flags;
#define MMU_PAGE_SIZE_DIRECT	0x1	/* Supported as a direct size */
#define MMU_PAGE_SIZE_INDIRECT	0x2	/* Supported as an indirect size */
};
extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];

static inline int shift_to_mmu_psize(unsigned int shift)
{
	int psize;

	for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
		if (mmu_psize_defs[psize].shift == shift)
			return psize;
	return -1;
}

static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
{
	if (mmu_psize_defs[mmu_psize].shift)
		return mmu_psize_defs[mmu_psize].shift;
	BUG();
}

/* The page sizes use the same names as 64-bit hash but are
 * constants
 */
#if defined(CONFIG_PPC_4K_PAGES)
#define mmu_virtual_psize	MMU_PAGE_4K
#elif defined(CONFIG_PPC_64K_PAGES)
#define mmu_virtual_psize	MMU_PAGE_64K
#else
#error Unsupported page size
#endif

extern int mmu_linear_psize;
extern int mmu_vmemmap_psize;

struct tlb_core_data {
	/*
	 * Per-core spinlock for e6500 TLB handlers (no tlbsrx.)
	 * Must be the first struct element.
	 */
	u8 lock;

	/* For software way selection, as on Freescale TLB1 */
	u8 esel_next, esel_max, esel_first;
};

#ifdef CONFIG_PPC64
extern unsigned long linear_map_top;
extern int book3e_htw_mode;

#define PPC_HTW_NONE	0
#define PPC_HTW_IBM	1
#define PPC_HTW_E6500	2

/*
 * 64-bit booke platforms don't load the tlb in the tlb miss handler code.
 * HUGETLB_NEED_PRELOAD handles this - it causes huge_ptep_set_access_flags to
 * return 1, indicating that the tlb requires preloading.
 */
#define HUGETLB_NEED_PRELOAD

#define mmu_cleanup_all NULL

#endif

#endif /* !__ASSEMBLY__ */

#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
d66c82ea KG	2	#ifndef _ASM_POWERPC_MMU_BOOK3E_H_
d66c82ea KG	3	#define _ASM_POWERPC_MMU_BOOK3E_H_
67f74c9d	4	/*
d66c82ea	5	* Freescale Book-E/Book-3e (ISA 2.06+) MMU support
67f74c9d DG	6	*/
67f74c9d DG	7
d66c82ea KG	8	/* Book-3e defined page sizes */
	9	#define BOOK3E_PAGESZ_1K 0
	10	#define BOOK3E_PAGESZ_2K 1
	11	#define BOOK3E_PAGESZ_4K 2
	12	#define BOOK3E_PAGESZ_8K 3
	13	#define BOOK3E_PAGESZ_16K 4
	14	#define BOOK3E_PAGESZ_32K 5
	15	#define BOOK3E_PAGESZ_64K 6
	16	#define BOOK3E_PAGESZ_128K 7
	17	#define BOOK3E_PAGESZ_256K 8
	18	#define BOOK3E_PAGESZ_512K 9
	19	#define BOOK3E_PAGESZ_1M 10
	20	#define BOOK3E_PAGESZ_2M 11
	21	#define BOOK3E_PAGESZ_4M 12
	22	#define BOOK3E_PAGESZ_8M 13
	23	#define BOOK3E_PAGESZ_16M 14
	24	#define BOOK3E_PAGESZ_32M 15
	25	#define BOOK3E_PAGESZ_64M 16
	26	#define BOOK3E_PAGESZ_128M 17
	27	#define BOOK3E_PAGESZ_256M 18
	28	#define BOOK3E_PAGESZ_512M 19
	29	#define BOOK3E_PAGESZ_1GB 20
	30	#define BOOK3E_PAGESZ_2GB 21
	31	#define BOOK3E_PAGESZ_4GB 22
	32	#define BOOK3E_PAGESZ_8GB 23
	33	#define BOOK3E_PAGESZ_16GB 24
	34	#define BOOK3E_PAGESZ_32GB 25
	35	#define BOOK3E_PAGESZ_64GB 26
	36	#define BOOK3E_PAGESZ_128GB 27
	37	#define BOOK3E_PAGESZ_256GB 28
	38	#define BOOK3E_PAGESZ_512GB 29
	39	#define BOOK3E_PAGESZ_1TB 30
	40	#define BOOK3E_PAGESZ_2TB 31
67f74c9d	41
1fe1a210 BH	42	/* MAS registers bit definitions */
1fe1a210 BH	43
9c0d4e0d MC	44	#define MAS0_TLBSEL_MASK 0x30000000
	45	#define MAS0_TLBSEL_SHIFT 28
	46	#define MAS0_TLBSEL(x) (((x) << MAS0_TLBSEL_SHIFT) & MAS0_TLBSEL_MASK)
	47	#define MAS0_GET_TLBSEL(mas0) (((mas0) & MAS0_TLBSEL_MASK) >> \
	48	MAS0_TLBSEL_SHIFT)
f0aae323	49	#define MAS0_ESEL_MASK 0x0FFF0000
57013524 SW	50	#define MAS0_ESEL_SHIFT 16
	51	#define MAS0_ESEL(x) (((x) << MAS0_ESEL_SHIFT) & MAS0_ESEL_MASK)
	52	#define MAS0_NV(x) ((x) & 0x00000FFF)
1fe1a210 BH	53	#define MAS0_HES 0x00004000
	54	#define MAS0_WQ_ALLWAYS 0x00000000
	55	#define MAS0_WQ_COND 0x00001000
	56	#define MAS0_WQ_CLR_RSRV 0x00002000
	57
	58	#define MAS1_VALID 0x80000000
	59	#define MAS1_IPROT 0x40000000
b51cbd41	60	#define MAS1_TID(x) (((x) << 16) & 0x3FFF0000)
1fe1a210 BH	61	#define MAS1_IND 0x00002000
	62	#define MAS1_TS 0x00001000
	63	#define MAS1_TSIZE_MASK 0x00000f80
	64	#define MAS1_TSIZE_SHIFT 7
b51cbd41	65	#define MAS1_TSIZE(x) (((x) << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK)
9c0d4e0d	66	#define MAS1_GET_TSIZE(mas1) (((mas1) & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT)
1fe1a210	67
e9666ea1	68	#define MAS2_EPN (~0xFFFUL)
1fe1a210 BH	69	#define MAS2_X0 0x00000040
	70	#define MAS2_X1 0x00000020
	71	#define MAS2_W 0x00000010
	72	#define MAS2_I 0x00000008
	73	#define MAS2_M 0x00000004
	74	#define MAS2_G 0x00000002
	75	#define MAS2_E 0x00000001
41151e77	76	#define MAS2_WIMGE_MASK 0x0000001f
d66c82ea	77	#define MAS2_EPN_MASK(size) (~0 << (size + 10))
b3898895	78	#define MAS2_VAL(addr, size, flags) ((addr) & MAS2_EPN_MASK(size) \| (flags))
67f74c9d	79
1fe1a210 BH	80	#define MAS3_RPN 0xFFFFF000
	81	#define MAS3_U0 0x00000200
	82	#define MAS3_U1 0x00000100
	83	#define MAS3_U2 0x00000080
	84	#define MAS3_U3 0x00000040
	85	#define MAS3_UX 0x00000020
	86	#define MAS3_SX 0x00000010
	87	#define MAS3_UW 0x00000008
	88	#define MAS3_SW 0x00000004
	89	#define MAS3_UR 0x00000002
	90	#define MAS3_SR 0x00000001
41151e77	91	#define MAS3_BAP_MASK 0x0000003f
1fe1a210 BH	92	#define MAS3_SPSIZE 0x0000003e
	93	#define MAS3_SPSIZE_SHIFT 1
	94
d57cef91	95	#define MAS4_TLBSEL_MASK MAS0_TLBSEL_MASK
1fe1a210 BH	96	#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
	97	#define MAS4_INDD 0x00008000 /* Default IND */
	98	#define MAS4_TSIZED(x) MAS1_TSIZE(x)
	99	#define MAS4_X0D 0x00000040
	100	#define MAS4_X1D 0x00000020
	101	#define MAS4_WD 0x00000010
	102	#define MAS4_ID 0x00000008
	103	#define MAS4_MD 0x00000004
	104	#define MAS4_GD 0x00000002
	105	#define MAS4_ED 0x00000001
	106	#define MAS4_WIMGED_MASK 0x0000001f /* Default WIMGE */
	107	#define MAS4_WIMGED_SHIFT 0
	108	#define MAS4_VLED MAS4_X1D /* Default VLE */
	109	#define MAS4_ACMD 0x000000c0 /* Default ACM */
	110	#define MAS4_ACMD_SHIFT 6
	111	#define MAS4_TSIZED_MASK 0x00000f80 /* Default TSIZE */
	112	#define MAS4_TSIZED_SHIFT 7
	113
d30f6e48 SW	114	#define MAS5_SGS 0x80000000
d30f6e48 SW	115
1fe1a210 BH	116	#define MAS6_SPID0 0x3FFF0000
	117	#define MAS6_SPID1 0x00007FFE
	118	#define MAS6_ISIZE(x) MAS1_TSIZE(x)
	119	#define MAS6_SAS 0x00000001
	120	#define MAS6_SPID MAS6_SPID0
	121	#define MAS6_SIND 0x00000002 /* Indirect page */
	122	#define MAS6_SIND_SHIFT 1
	123	#define MAS6_SPID_MASK 0x3fff0000
	124	#define MAS6_SPID_SHIFT 16
	125	#define MAS6_ISIZE_MASK 0x00000f80
	126	#define MAS6_ISIZE_SHIFT 7
	127
	128	#define MAS7_RPN 0xFFFFFFFF
	129
d30f6e48 SW	130	#define MAS8_TGS 0x80000000 /* Guest space */
	131	#define MAS8_VF 0x40000000 /* Virtualization Fault */
	132	#define MAS8_TLPID 0x000000ff
	133
988cf86d KG	134	/* Bit definitions for MMUCFG */
	135	#define MMUCFG_MAVN 0x00000003 /* MMU Architecture Version Number */
	136	#define MMUCFG_MAVN_V1 0x00000000 /* v1.0 */
	137	#define MMUCFG_MAVN_V2 0x00000001 /* v2.0 */
	138	#define MMUCFG_NTLBS 0x0000000c /* Number of TLBs */
	139	#define MMUCFG_PIDSIZE 0x000007c0 /* PID Reg Size */
	140	#define MMUCFG_TWC 0x00008000 /* TLB Write Conditional (v2.0) */
	141	#define MMUCFG_LRAT 0x00010000 /* LRAT Supported (v2.0) */
	142	#define MMUCFG_RASIZE 0x00fe0000 /* Real Addr Size */
	143	#define MMUCFG_LPIDSIZE 0x0f000000 /* LPID Reg Size */
	144
fc4bdb35 KG	145	/* Bit definitions for MMUCSR0 */
	146	#define MMUCSR0_TLB1FI 0x00000002 /* TLB1 Flash invalidate */
	147	#define MMUCSR0_TLB0FI 0x00000004 /* TLB0 Flash invalidate */
	148	#define MMUCSR0_TLB2FI 0x00000040 /* TLB2 Flash invalidate */
	149	#define MMUCSR0_TLB3FI 0x00000020 /* TLB3 Flash invalidate */
	150	#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI \| MMUCSR0_TLB1FI \| \
	151	MMUCSR0_TLB2FI \| MMUCSR0_TLB3FI)
	152	#define MMUCSR0_TLB0PS 0x00000780 /* TLB0 Page Size */
	153	#define MMUCSR0_TLB1PS 0x00007800 /* TLB1 Page Size */
	154	#define MMUCSR0_TLB2PS 0x00078000 /* TLB2 Page Size */
	155	#define MMUCSR0_TLB3PS 0x00780000 /* TLB3 Page Size */
	156
bd491781 BH	157	/* MMUCFG bits */
	158	#define MMUCFG_MAVN_NASK 0x00000003
	159	#define MMUCFG_MAVN_V1_0 0x00000000
	160	#define MMUCFG_MAVN_V2_0 0x00000001
	161	#define MMUCFG_NTLB_MASK 0x0000000c
	162	#define MMUCFG_NTLB_SHIFT 2
	163	#define MMUCFG_PIDSIZE_MASK 0x000007c0
	164	#define MMUCFG_PIDSIZE_SHIFT 6
	165	#define MMUCFG_TWC 0x00008000
	166	#define MMUCFG_LRAT 0x00010000
	167	#define MMUCFG_RASIZE_MASK 0x00fe0000
	168	#define MMUCFG_RASIZE_SHIFT 17
	169	#define MMUCFG_LPIDSIZE_MASK 0x0f000000
	170	#define MMUCFG_LPIDSIZE_SHIFT 24
	171
1fe1a210 BH	172	/* TLBnCFG encoding */
	173	#define TLBnCFG_N_ENTRY 0x00000fff /* number of entries */
	174	#define TLBnCFG_HES 0x00002000 /* HW select supported */
	175	#define TLBnCFG_IPROT 0x00008000 /* IPROT supported */
	176	#define TLBnCFG_GTWE 0x00010000 /* Guest can write */
	177	#define TLBnCFG_IND 0x00020000 /* IND entries supported */
	178	#define TLBnCFG_PT 0x00040000 /* Can load from page table */
988cf86d KG	179	#define TLBnCFG_MINSIZE 0x00f00000 /* Minimum Page Size (v1.0) */
	180	#define TLBnCFG_MINSIZE_SHIFT 20
	181	#define TLBnCFG_MAXSIZE 0x000f0000 /* Maximum Page Size (v1.0) */
	182	#define TLBnCFG_MAXSIZE_SHIFT 16
1fe1a210	183	#define TLBnCFG_ASSOC 0xff000000 /* Associativity */
0164c0f0	184	#define TLBnCFG_ASSOC_SHIFT 24
1fe1a210 BH	185
	186	/* TLBnPS encoding */
	187	#define TLBnPS_4K 0x00000004
	188	#define TLBnPS_8K 0x00000008
	189	#define TLBnPS_16K 0x00000010
	190	#define TLBnPS_32K 0x00000020
	191	#define TLBnPS_64K 0x00000040
	192	#define TLBnPS_128K 0x00000080
	193	#define TLBnPS_256K 0x00000100
	194	#define TLBnPS_512K 0x00000200
	195	#define TLBnPS_1M 0x00000400
	196	#define TLBnPS_2M 0x00000800
	197	#define TLBnPS_4M 0x00001000
	198	#define TLBnPS_8M 0x00002000
	199	#define TLBnPS_16M 0x00004000
	200	#define TLBnPS_32M 0x00008000
	201	#define TLBnPS_64M 0x00010000
	202	#define TLBnPS_128M 0x00020000
	203	#define TLBnPS_256M 0x00040000
	204	#define TLBnPS_512M 0x00080000
	205	#define TLBnPS_1G 0x00100000
	206	#define TLBnPS_2G 0x00200000
	207	#define TLBnPS_4G 0x00400000
	208	#define TLBnPS_8G 0x00800000
	209	#define TLBnPS_16G 0x01000000
	210	#define TLBnPS_32G 0x02000000
	211	#define TLBnPS_64G 0x04000000
	212	#define TLBnPS_128G 0x08000000
	213	#define TLBnPS_256G 0x10000000
	214
	215	/* tlbilx action encoding */
	216	#define TLBILX_T_ALL 0
	217	#define TLBILX_T_TID 1
	218	#define TLBILX_T_FULLMATCH 3
	219	#define TLBILX_T_CLASS0 4
	220	#define TLBILX_T_CLASS1 5
	221	#define TLBILX_T_CLASS2 6
	222	#define TLBILX_T_CLASS3 7
67f74c9d DG	223
67f74c9d DG	224	#ifndef __ASSEMBLY__
54d5999d	225	#include <asm/bug.h>
67f74c9d	226
87c656b4 LY	227	extern unsigned int tlbcam_index;
87c656b4 LY	228
67f74c9d	229	typedef struct {
2ca8cf73 BH	230	unsigned int id;
	231	unsigned int active;
	232	unsigned long vdso_base;
5c1f6ee9 AK	233	#ifdef CONFIG_PPC_64K_PAGES
	234	/* for 4K PTE fragment support */
	235	void *pte_frag;
	236	#endif
67f74c9d	237	} mm_context_t;
57e2a99f BH	238
	239	/* Page size definitions, common between 32 and 64-bit
	240	*
	241	* shift : is the "PAGE_SHIFT" value for that page size
	242	* penc : is the pte encoding mask
	243	*
	244	*/
	245	struct mmu_psize_def
	246	{
	247	unsigned int shift; /* number of bits */
	248	unsigned int enc; /* PTE encoding */
f2b26c92 BH	249	unsigned int ind; /* Corresponding indirect page size shift */
	250	unsigned int flags;
	251	#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
	252	#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
57e2a99f BH	253	};
	254	extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
	255
54d5999d AK	256	static inline int shift_to_mmu_psize(unsigned int shift)
	257	{
	258	int psize;
	259
	260	for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
	261	if (mmu_psize_defs[psize].shift == shift)
	262	return psize;
	263	return -1;
	264	}
	265
	266	static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
	267	{
	268	if (mmu_psize_defs[mmu_psize].shift)
	269	return mmu_psize_defs[mmu_psize].shift;
	270	BUG();
	271	}
	272
57e2a99f BH	273	/* The page sizes use the same names as 64-bit hash but are
	274	* constants
	275	*/
	276	#if defined(CONFIG_PPC_4K_PAGES)
	277	#define mmu_virtual_psize MMU_PAGE_4K
	278	#elif defined(CONFIG_PPC_64K_PAGES)
	279	#define mmu_virtual_psize MMU_PAGE_64K
	280	#else
	281	#error Unsupported page size
	282	#endif
	283
	284	extern int mmu_linear_psize;
32a74949	285	extern int mmu_vmemmap_psize;
57e2a99f	286
28efc35f	287	struct tlb_core_data {
82d86de2 SW	288	/*
	289	* Per-core spinlock for e6500 TLB handlers (no tlbsrx.)
	290	* Must be the first struct element.
	291	*/
	292	u8 lock;
	293
28efc35f SW	294	/* For software way selection, as on Freescale TLB1 */
28efc35f SW	295	u8 esel_next, esel_max, esel_first;
28efc35f SW	296	};
28efc35f SW	297
40bd587a BH	298	#ifdef CONFIG_PPC64
40bd587a BH	299	extern unsigned long linear_map_top;
28efc35f SW	300	extern int book3e_htw_mode;
	301
	302	#define PPC_HTW_NONE 0
	303	#define PPC_HTW_IBM 1
	304	#define PPC_HTW_E6500 2
1f6820b4 BB	305
	306	/*
	307	* 64-bit booke platforms don't load the tlb in the tlb miss handler code.
	308	* HUGETLB_NEED_PRELOAD handles this - it causes huge_ptep_set_access_flags to
	309	* return 1, indicating that the tlb requires preloading.
	310	*/
	311	#define HUGETLB_NEED_PRELOAD
fe036a06 BH	312
	313	#define mmu_cleanup_all NULL
	314
40bd587a BH	315	#endif
40bd587a BH	316
67f74c9d DG	317	#endif /* !__ASSEMBLY__ */
67f74c9d DG	318
d66c82ea	319	#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */