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https://github.com/AsahiLinux/u-boot
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31d084ddda
e6500 implements MMUv2 and supports power-of-2 page sizes rather than power-of-4. Add support for such pages. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
791 lines
27 KiB
C
791 lines
27 KiB
C
/*
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* PowerPC memory management structures
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*/
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#ifndef _PPC_MMU_H_
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#define _PPC_MMU_H_
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#include <linux/config.h>
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#ifndef __ASSEMBLY__
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/* Hardware Page Table Entry */
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typedef struct _PTE {
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#ifdef CONFIG_PPC64BRIDGE
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unsigned long long vsid:52;
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unsigned long api:5;
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unsigned long :5;
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unsigned long h:1;
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unsigned long v:1;
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unsigned long long rpn:52;
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#else /* CONFIG_PPC64BRIDGE */
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unsigned long v:1; /* Entry is valid */
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unsigned long vsid:24; /* Virtual segment identifier */
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unsigned long h:1; /* Hash algorithm indicator */
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unsigned long api:6; /* Abbreviated page index */
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unsigned long rpn:20; /* Real (physical) page number */
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#endif /* CONFIG_PPC64BRIDGE */
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unsigned long :3; /* Unused */
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unsigned long r:1; /* Referenced */
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unsigned long c:1; /* Changed */
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unsigned long w:1; /* Write-thru cache mode */
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unsigned long i:1; /* Cache inhibited */
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unsigned long m:1; /* Memory coherence */
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unsigned long g:1; /* Guarded */
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unsigned long :1; /* Unused */
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unsigned long pp:2; /* Page protection */
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} PTE;
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/* Values for PP (assumes Ks=0, Kp=1) */
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#define PP_RWXX 0 /* Supervisor read/write, User none */
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#define PP_RWRX 1 /* Supervisor read/write, User read */
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#define PP_RWRW 2 /* Supervisor read/write, User read/write */
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#define PP_RXRX 3 /* Supervisor read, User read */
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/* Segment Register */
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typedef struct _SEGREG {
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unsigned long t:1; /* Normal or I/O type */
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unsigned long ks:1; /* Supervisor 'key' (normally 0) */
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unsigned long kp:1; /* User 'key' (normally 1) */
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unsigned long n:1; /* No-execute */
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unsigned long :4; /* Unused */
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unsigned long vsid:24; /* Virtual Segment Identifier */
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} SEGREG;
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/* Block Address Translation (BAT) Registers */
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typedef struct _P601_BATU { /* Upper part of BAT for 601 processor */
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unsigned long bepi:15; /* Effective page index (virtual address) */
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unsigned long :8; /* unused */
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unsigned long w:1;
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unsigned long i:1; /* Cache inhibit */
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unsigned long m:1; /* Memory coherence */
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unsigned long ks:1; /* Supervisor key (normally 0) */
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unsigned long kp:1; /* User key (normally 1) */
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unsigned long pp:2; /* Page access protections */
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} P601_BATU;
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typedef struct _BATU { /* Upper part of BAT (all except 601) */
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#ifdef CONFIG_PPC64BRIDGE
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unsigned long long bepi:47;
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#else /* CONFIG_PPC64BRIDGE */
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unsigned long bepi:15; /* Effective page index (virtual address) */
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#endif /* CONFIG_PPC64BRIDGE */
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unsigned long :4; /* Unused */
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unsigned long bl:11; /* Block size mask */
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unsigned long vs:1; /* Supervisor valid */
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unsigned long vp:1; /* User valid */
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} BATU;
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typedef struct _P601_BATL { /* Lower part of BAT for 601 processor */
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unsigned long brpn:15; /* Real page index (physical address) */
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unsigned long :10; /* Unused */
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unsigned long v:1; /* Valid bit */
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unsigned long bl:6; /* Block size mask */
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} P601_BATL;
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typedef struct _BATL { /* Lower part of BAT (all except 601) */
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#ifdef CONFIG_PPC64BRIDGE
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unsigned long long brpn:47;
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#else /* CONFIG_PPC64BRIDGE */
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unsigned long brpn:15; /* Real page index (physical address) */
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#endif /* CONFIG_PPC64BRIDGE */
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unsigned long :10; /* Unused */
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unsigned long w:1; /* Write-thru cache */
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unsigned long i:1; /* Cache inhibit */
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unsigned long m:1; /* Memory coherence */
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unsigned long g:1; /* Guarded (MBZ in IBAT) */
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unsigned long :1; /* Unused */
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unsigned long pp:2; /* Page access protections */
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} BATL;
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typedef struct _BAT {
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BATU batu; /* Upper register */
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BATL batl; /* Lower register */
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} BAT;
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typedef struct _P601_BAT {
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P601_BATU batu; /* Upper register */
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P601_BATL batl; /* Lower register */
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} P601_BAT;
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/*
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* Simulated two-level MMU. This structure is used by the kernel
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* to keep track of MMU mappings and is used to update/maintain
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* the hardware HASH table which is really a cache of mappings.
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*
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* The simulated structures mimic the hardware available on other
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* platforms, notably the 80x86 and 680x0.
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*/
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typedef struct _pte {
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unsigned long page_num:20;
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unsigned long flags:12; /* Page flags (some unused bits) */
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} pte;
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#define PD_SHIFT (10+12) /* Page directory */
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#define PD_MASK 0x02FF
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#define PT_SHIFT (12) /* Page Table */
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#define PT_MASK 0x02FF
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#define PG_SHIFT (12) /* Page Entry */
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/* MMU context */
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typedef struct _MMU_context {
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SEGREG segs[16]; /* Segment registers */
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pte **pmap; /* Two-level page-map structure */
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} MMU_context;
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extern void _tlbie(unsigned long va); /* invalidate a TLB entry */
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extern void _tlbia(void); /* invalidate all TLB entries */
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#ifdef CONFIG_ADDR_MAP
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extern void init_addr_map(void);
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#endif
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typedef enum {
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IBAT0 = 0, IBAT1, IBAT2, IBAT3,
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DBAT0, DBAT1, DBAT2, DBAT3,
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#ifdef CONFIG_HIGH_BATS
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IBAT4, IBAT5, IBAT6, IBAT7,
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DBAT4, DBAT5, DBAT6, DBAT7
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#endif
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} ppc_bat_t;
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extern int read_bat(ppc_bat_t bat, unsigned long *upper, unsigned long *lower);
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extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
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extern void print_bats(void);
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#endif /* __ASSEMBLY__ */
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#define BATU_VS 0x00000002
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#define BATU_VP 0x00000001
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#define BATU_INVALID 0x00000000
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#define BATL_WRITETHROUGH 0x00000040
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#define BATL_CACHEINHIBIT 0x00000020
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#define BATL_MEMCOHERENCE 0x00000010
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#define BATL_GUARDEDSTORAGE 0x00000008
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#define BATL_NO_ACCESS 0x00000000
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#define BATL_PP_MSK 0x00000003
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#define BATL_PP_00 0x00000000 /* No access */
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#define BATL_PP_01 0x00000001 /* Read-only */
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#define BATL_PP_10 0x00000002 /* Read-write */
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#define BATL_PP_11 0x00000003
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#define BATL_PP_NO_ACCESS BATL_PP_00
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#define BATL_PP_RO BATL_PP_01
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#define BATL_PP_RW BATL_PP_10
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/* BAT Block size values */
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#define BATU_BL_128K 0x00000000
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#define BATU_BL_256K 0x00000004
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#define BATU_BL_512K 0x0000000c
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#define BATU_BL_1M 0x0000001c
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#define BATU_BL_2M 0x0000003c
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#define BATU_BL_4M 0x0000007c
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#define BATU_BL_8M 0x000000fc
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#define BATU_BL_16M 0x000001fc
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#define BATU_BL_32M 0x000003fc
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#define BATU_BL_64M 0x000007fc
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#define BATU_BL_128M 0x00000ffc
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#define BATU_BL_256M 0x00001ffc
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/* Block lengths for processors that support extended block length */
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#ifdef HID0_XBSEN
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#define BATU_BL_512M 0x00003ffc
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#define BATU_BL_1G 0x00007ffc
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#define BATU_BL_2G 0x0000fffc
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#define BATU_BL_4G 0x0001fffc
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#define BATU_BL_MAX BATU_BL_4G
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#else
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#define BATU_BL_MAX BATU_BL_256M
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#endif
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/* BAT Access Protection */
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#define BPP_XX 0x00 /* No access */
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#define BPP_RX 0x01 /* Read only */
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#define BPP_RW 0x02 /* Read/write */
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/* Macros to get values from BATs, once data is in the BAT register format */
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#define BATU_VALID(x) (x & 0x3)
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#define BATU_VADDR(x) (x & 0xfffe0000)
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#define BATL_PADDR(x) ((phys_addr_t)((x & 0xfffe0000) \
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| ((x & 0x0e00ULL) << 24) \
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| ((x & 0x04ULL) << 30)))
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#define BATU_SIZE(x) (1ULL << (fls((x & BATU_BL_MAX) >> 2) + 17))
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/* bytes into BATU_BL */
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#define TO_BATU_BL(x) \
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(u32)((((1ull << __ilog2_u64((u64)x)) / (128 * 1024)) - 1) * 4)
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/* Used to set up SDR1 register */
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#define HASH_TABLE_SIZE_64K 0x00010000
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#define HASH_TABLE_SIZE_128K 0x00020000
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#define HASH_TABLE_SIZE_256K 0x00040000
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#define HASH_TABLE_SIZE_512K 0x00080000
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#define HASH_TABLE_SIZE_1M 0x00100000
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#define HASH_TABLE_SIZE_2M 0x00200000
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#define HASH_TABLE_SIZE_4M 0x00400000
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#define HASH_TABLE_MASK_64K 0x000
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#define HASH_TABLE_MASK_128K 0x001
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#define HASH_TABLE_MASK_256K 0x003
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#define HASH_TABLE_MASK_512K 0x007
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#define HASH_TABLE_MASK_1M 0x00F
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#define HASH_TABLE_MASK_2M 0x01F
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#define HASH_TABLE_MASK_4M 0x03F
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/* Control/status registers for the MPC8xx.
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* A write operation to these registers causes serialized access.
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* During software tablewalk, the registers used perform mask/shift-add
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* operations when written/read. A TLB entry is created when the Mx_RPN
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* is written, and the contents of several registers are used to
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* create the entry.
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*/
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#define MI_CTR 784 /* Instruction TLB control register */
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#define MI_GPM 0x80000000 /* Set domain manager mode */
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#define MI_PPM 0x40000000 /* Set subpage protection */
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#define MI_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
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#define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */
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#define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
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#define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */
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#define MI_RESETVAL 0x00000000 /* Value of register at reset */
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/* These are the Ks and Kp from the PowerPC books. For proper operation,
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* Ks = 0, Kp = 1.
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*/
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#define MI_AP 786
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#define MI_Ks 0x80000000 /* Should not be set */
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#define MI_Kp 0x40000000 /* Should always be set */
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/* The effective page number register. When read, contains the information
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* about the last instruction TLB miss. When MI_RPN is written, bits in
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* this register are used to create the TLB entry.
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*/
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#define MI_EPN 787
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#define MI_EPNMASK 0xfffff000 /* Effective page number for entry */
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#define MI_EVALID 0x00000200 /* Entry is valid */
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#define MI_ASIDMASK 0x0000000f /* ASID match value */
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/* Reset value is undefined */
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/* A "level 1" or "segment" or whatever you want to call it register.
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* For the instruction TLB, it contains bits that get loaded into the
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* TLB entry when the MI_RPN is written.
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*/
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#define MI_TWC 789
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#define MI_APG 0x000001e0 /* Access protection group (0) */
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#define MI_GUARDED 0x00000010 /* Guarded storage */
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#define MI_PSMASK 0x0000000c /* Mask of page size bits */
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#define MI_PS8MEG 0x0000000c /* 8M page size */
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#define MI_PS512K 0x00000004 /* 512K page size */
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#define MI_PS4K_16K 0x00000000 /* 4K or 16K page size */
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#define MI_SVALID 0x00000001 /* Segment entry is valid */
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/* Reset value is undefined */
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/* Real page number. Defined by the pte. Writing this register
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* causes a TLB entry to be created for the instruction TLB, using
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* additional information from the MI_EPN, and MI_TWC registers.
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*/
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#define MI_RPN 790
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/* Define an RPN value for mapping kernel memory to large virtual
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* pages for boot initialization. This has real page number of 0,
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* large page size, shared page, cache enabled, and valid.
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* Also mark all subpages valid and write access.
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*/
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#define MI_BOOTINIT 0x000001fd
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#define MD_CTR 792 /* Data TLB control register */
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#define MD_GPM 0x80000000 /* Set domain manager mode */
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#define MD_PPM 0x40000000 /* Set subpage protection */
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#define MD_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
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#define MD_WTDEF 0x10000000 /* Set writethrough when MMU dis */
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#define MD_RSV4I 0x08000000 /* Reserve 4 TLB entries */
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#define MD_TWAM 0x04000000 /* Use 4K page hardware assist */
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#define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
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#define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */
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#define MD_RESETVAL 0x04000000 /* Value of register at reset */
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#define M_CASID 793 /* Address space ID (context) to match */
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#define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */
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/* These are the Ks and Kp from the PowerPC books. For proper operation,
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* Ks = 0, Kp = 1.
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*/
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#define MD_AP 794
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#define MD_Ks 0x80000000 /* Should not be set */
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#define MD_Kp 0x40000000 /* Should always be set */
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/* The effective page number register. When read, contains the information
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* about the last instruction TLB miss. When MD_RPN is written, bits in
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* this register are used to create the TLB entry.
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*/
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#define MD_EPN 795
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#define MD_EPNMASK 0xfffff000 /* Effective page number for entry */
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#define MD_EVALID 0x00000200 /* Entry is valid */
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#define MD_ASIDMASK 0x0000000f /* ASID match value */
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/* Reset value is undefined */
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/* The pointer to the base address of the first level page table.
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* During a software tablewalk, reading this register provides the address
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* of the entry associated with MD_EPN.
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*/
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#define M_TWB 796
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#define M_L1TB 0xfffff000 /* Level 1 table base address */
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#define M_L1INDX 0x00000ffc /* Level 1 index, when read */
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/* Reset value is undefined */
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/* A "level 1" or "segment" or whatever you want to call it register.
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* For the data TLB, it contains bits that get loaded into the TLB entry
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* when the MD_RPN is written. It is also provides the hardware assist
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* for finding the PTE address during software tablewalk.
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*/
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#define MD_TWC 797
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#define MD_L2TB 0xfffff000 /* Level 2 table base address */
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#define MD_L2INDX 0xfffffe00 /* Level 2 index (*pte), when read */
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#define MD_APG 0x000001e0 /* Access protection group (0) */
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#define MD_GUARDED 0x00000010 /* Guarded storage */
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#define MD_PSMASK 0x0000000c /* Mask of page size bits */
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#define MD_PS8MEG 0x0000000c /* 8M page size */
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#define MD_PS512K 0x00000004 /* 512K page size */
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#define MD_PS4K_16K 0x00000000 /* 4K or 16K page size */
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#define MD_WT 0x00000002 /* Use writethrough page attribute */
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#define MD_SVALID 0x00000001 /* Segment entry is valid */
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/* Reset value is undefined */
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/* Real page number. Defined by the pte. Writing this register
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* causes a TLB entry to be created for the data TLB, using
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* additional information from the MD_EPN, and MD_TWC registers.
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*/
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#define MD_RPN 798
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/* This is a temporary storage register that could be used to save
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* a processor working register during a tablewalk.
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*/
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#define M_TW 799
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/*
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* At present, all PowerPC 400-class processors share a similar TLB
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* architecture. The instruction and data sides share a unified,
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* 64-entry, fully-associative TLB which is maintained totally under
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* software control. In addition, the instruction side has a
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* hardware-managed, 4-entry, fully- associative TLB which serves as a
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* first level to the shared TLB. These two TLBs are known as the UTLB
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* and ITLB, respectively.
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*/
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#define PPC4XX_TLB_SIZE 64
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/*
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* TLB entries are defined by a "high" tag portion and a "low" data
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* portion. On all architectures, the data portion is 32-bits.
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*
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* TLB entries are managed entirely under software control by reading,
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* writing, and searchoing using the 4xx-specific tlbre, tlbwr, and tlbsx
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* instructions.
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*/
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/*
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* FSL Book-E support
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*/
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#define MAS0_TLBSEL_MSK 0x30000000
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#define MAS0_TLBSEL(x) (((x) << 28) & MAS0_TLBSEL_MSK)
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#define MAS0_ESEL_MSK 0x0FFF0000
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#define MAS0_ESEL(x) (((x) << 16) & MAS0_ESEL_MSK)
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#define MAS0_NV(x) ((x) & 0x00000FFF)
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#define MAS1_VALID 0x80000000
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#define MAS1_IPROT 0x40000000
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#define MAS1_TID(x) (((x) << 16) & 0x3FFF0000)
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#define MAS1_TS 0x00001000
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#define MAS1_TSIZE(x) (((x) << 7) & 0x00000F80)
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#define TSIZE_TO_BYTES(x) (1ULL << ((x) + 10))
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#define MAS2_EPN 0xFFFFF000
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#define MAS2_X0 0x00000040
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#define MAS2_X1 0x00000020
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#define MAS2_W 0x00000010
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#define MAS2_I 0x00000008
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#define MAS2_M 0x00000004
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#define MAS2_G 0x00000002
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#define MAS2_E 0x00000001
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#define MAS3_RPN 0xFFFFF000
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#define MAS3_U0 0x00000200
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#define MAS3_U1 0x00000100
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#define MAS3_U2 0x00000080
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#define MAS3_U3 0x00000040
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#define MAS3_UX 0x00000020
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#define MAS3_SX 0x00000010
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#define MAS3_UW 0x00000008
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#define MAS3_SW 0x00000004
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#define MAS3_UR 0x00000002
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#define MAS3_SR 0x00000001
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#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
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#define MAS4_TIDDSEL 0x000F0000
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#define MAS4_TSIZED(x) MAS1_TSIZE(x)
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#define MAS4_X0D 0x00000040
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#define MAS4_X1D 0x00000020
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#define MAS4_WD 0x00000010
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#define MAS4_ID 0x00000008
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#define MAS4_MD 0x00000004
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#define MAS4_GD 0x00000002
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#define MAS4_ED 0x00000001
|
|
|
|
#define MAS6_SPID0 0x3FFF0000
|
|
#define MAS6_SPID1 0x00007FFE
|
|
#define MAS6_SAS 0x00000001
|
|
#define MAS6_SPID MAS6_SPID0
|
|
|
|
#define MAS7_RPN 0xFFFFFFFF
|
|
|
|
#define FSL_BOOKE_MAS0(tlbsel,esel,nv) \
|
|
(MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel) | MAS0_NV(nv))
|
|
#define FSL_BOOKE_MAS1(v,iprot,tid,ts,tsize) \
|
|
((((v) << 31) & MAS1_VALID) |\
|
|
(((iprot) << 30) & MAS1_IPROT) |\
|
|
(MAS1_TID(tid)) |\
|
|
(((ts) << 12) & MAS1_TS) |\
|
|
(MAS1_TSIZE(tsize)))
|
|
#define FSL_BOOKE_MAS2(epn, wimge) \
|
|
(((epn) & MAS3_RPN) | (wimge))
|
|
#define FSL_BOOKE_MAS3(rpn, user, perms) \
|
|
(((rpn) & MAS3_RPN) | (user) | (perms))
|
|
#define FSL_BOOKE_MAS7(rpn) \
|
|
(((u64)(rpn)) >> 32)
|
|
|
|
#define BOOKE_PAGESZ_1K 0
|
|
#define BOOKE_PAGESZ_2K 1
|
|
#define BOOKE_PAGESZ_4K 2
|
|
#define BOOKE_PAGESZ_8K 3
|
|
#define BOOKE_PAGESZ_16K 4
|
|
#define BOOKE_PAGESZ_32K 5
|
|
#define BOOKE_PAGESZ_64K 6
|
|
#define BOOKE_PAGESZ_128K 7
|
|
#define BOOKE_PAGESZ_256K 8
|
|
#define BOOKE_PAGESZ_512K 9
|
|
#define BOOKE_PAGESZ_1M 10
|
|
#define BOOKE_PAGESZ_2M 11
|
|
#define BOOKE_PAGESZ_4M 12
|
|
#define BOOKE_PAGESZ_8M 13
|
|
#define BOOKE_PAGESZ_16M 14
|
|
#define BOOKE_PAGESZ_32M 15
|
|
#define BOOKE_PAGESZ_64M 16
|
|
#define BOOKE_PAGESZ_128M 17
|
|
#define BOOKE_PAGESZ_256M 18
|
|
#define BOOKE_PAGESZ_512M 19
|
|
#define BOOKE_PAGESZ_1G 20
|
|
#define BOOKE_PAGESZ_2G 21
|
|
#define BOOKE_PAGESZ_4G 22
|
|
#define BOOKE_PAGESZ_8G 23
|
|
#define BOOKE_PAGESZ_16GB 24
|
|
#define BOOKE_PAGESZ_32GB 25
|
|
#define BOOKE_PAGESZ_64GB 26
|
|
#define BOOKE_PAGESZ_128GB 27
|
|
#define BOOKE_PAGESZ_256GB 28
|
|
#define BOOKE_PAGESZ_512GB 29
|
|
#define BOOKE_PAGESZ_1TB 30
|
|
#define BOOKE_PAGESZ_2TB 31
|
|
|
|
#define TLBIVAX_ALL 4
|
|
#define TLBIVAX_TLB0 0
|
|
#define TLBIVAX_TLB1 8
|
|
|
|
#ifdef CONFIG_E500
|
|
#ifndef __ASSEMBLY__
|
|
extern void set_tlb(u8 tlb, u32 epn, u64 rpn,
|
|
u8 perms, u8 wimge,
|
|
u8 ts, u8 esel, u8 tsize, u8 iprot);
|
|
extern void disable_tlb(u8 esel);
|
|
extern void invalidate_tlb(u8 tlb);
|
|
extern void init_tlbs(void);
|
|
extern int find_tlb_idx(void *addr, u8 tlbsel);
|
|
extern void init_used_tlb_cams(void);
|
|
extern int find_free_tlbcam(void);
|
|
extern void print_tlbcam(void);
|
|
|
|
extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg);
|
|
extern void clear_ddr_tlbs(unsigned int memsize_in_meg);
|
|
|
|
extern void write_tlb(u32 _mas0, u32 _mas1, u32 _mas2, u32 _mas3, u32 _mas7);
|
|
|
|
#define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz, _iprot) \
|
|
{ .mas0 = FSL_BOOKE_MAS0(_tlb, _esel, 0), \
|
|
.mas1 = FSL_BOOKE_MAS1(1, _iprot, 0, _ts, _sz), \
|
|
.mas2 = FSL_BOOKE_MAS2(_epn, _wimge), \
|
|
.mas3 = FSL_BOOKE_MAS3(_rpn, 0, _perms), \
|
|
.mas7 = FSL_BOOKE_MAS7(_rpn), }
|
|
|
|
struct fsl_e_tlb_entry {
|
|
u32 mas0;
|
|
u32 mas1;
|
|
u32 mas2;
|
|
u32 mas3;
|
|
u32 mas7;
|
|
};
|
|
|
|
extern struct fsl_e_tlb_entry tlb_table[];
|
|
extern int num_tlb_entries;
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_E300
|
|
#define LAWAR_EN 0x80000000
|
|
#define LAWAR_SIZE 0x0000003F
|
|
|
|
#define LAWAR_TRGT_IF_PCI 0x00000000
|
|
#define LAWAR_TRGT_IF_PCI1 0x00000000
|
|
#define LAWAR_TRGT_IF_PCIX 0x00000000
|
|
#define LAWAR_TRGT_IF_PCI2 0x00100000
|
|
#define LAWAR_TRGT_IF_PCIE1 0x00200000
|
|
#define LAWAR_TRGT_IF_PCIE2 0x00100000
|
|
#define LAWAR_TRGT_IF_PCIE3 0x00300000
|
|
#define LAWAR_TRGT_IF_LBC 0x00400000
|
|
#define LAWAR_TRGT_IF_CCSR 0x00800000
|
|
#define LAWAR_TRGT_IF_DDR_INTERLEAVED 0x00B00000
|
|
#define LAWAR_TRGT_IF_RIO 0x00c00000
|
|
#define LAWAR_TRGT_IF_DDR 0x00f00000
|
|
#define LAWAR_TRGT_IF_DDR1 0x00f00000
|
|
#define LAWAR_TRGT_IF_DDR2 0x01600000
|
|
|
|
#define LAWAR_SIZE_BASE 0xa
|
|
#define LAWAR_SIZE_4K (LAWAR_SIZE_BASE+1)
|
|
#define LAWAR_SIZE_8K (LAWAR_SIZE_BASE+2)
|
|
#define LAWAR_SIZE_16K (LAWAR_SIZE_BASE+3)
|
|
#define LAWAR_SIZE_32K (LAWAR_SIZE_BASE+4)
|
|
#define LAWAR_SIZE_64K (LAWAR_SIZE_BASE+5)
|
|
#define LAWAR_SIZE_128K (LAWAR_SIZE_BASE+6)
|
|
#define LAWAR_SIZE_256K (LAWAR_SIZE_BASE+7)
|
|
#define LAWAR_SIZE_512K (LAWAR_SIZE_BASE+8)
|
|
#define LAWAR_SIZE_1M (LAWAR_SIZE_BASE+9)
|
|
#define LAWAR_SIZE_2M (LAWAR_SIZE_BASE+10)
|
|
#define LAWAR_SIZE_4M (LAWAR_SIZE_BASE+11)
|
|
#define LAWAR_SIZE_8M (LAWAR_SIZE_BASE+12)
|
|
#define LAWAR_SIZE_16M (LAWAR_SIZE_BASE+13)
|
|
#define LAWAR_SIZE_32M (LAWAR_SIZE_BASE+14)
|
|
#define LAWAR_SIZE_64M (LAWAR_SIZE_BASE+15)
|
|
#define LAWAR_SIZE_128M (LAWAR_SIZE_BASE+16)
|
|
#define LAWAR_SIZE_256M (LAWAR_SIZE_BASE+17)
|
|
#define LAWAR_SIZE_512M (LAWAR_SIZE_BASE+18)
|
|
#define LAWAR_SIZE_1G (LAWAR_SIZE_BASE+19)
|
|
#define LAWAR_SIZE_2G (LAWAR_SIZE_BASE+20)
|
|
#define LAWAR_SIZE_4G (LAWAR_SIZE_BASE+21)
|
|
#define LAWAR_SIZE_8G (LAWAR_SIZE_BASE+22)
|
|
#define LAWAR_SIZE_16G (LAWAR_SIZE_BASE+23)
|
|
#define LAWAR_SIZE_32G (LAWAR_SIZE_BASE+24)
|
|
#endif
|
|
|
|
#ifdef CONFIG_440
|
|
/* General */
|
|
#define TLB_VALID 0x00000200
|
|
|
|
/* Supported page sizes */
|
|
|
|
#define SZ_1K 0x00000000
|
|
#define SZ_4K 0x00000010
|
|
#define SZ_16K 0x00000020
|
|
#define SZ_64K 0x00000030
|
|
#define SZ_256K 0x00000040
|
|
#define SZ_1M 0x00000050
|
|
#define SZ_16M 0x00000070
|
|
#define SZ_256M 0x00000090
|
|
|
|
/* Storage attributes */
|
|
#define SA_W 0x00000800 /* Write-through */
|
|
#define SA_I 0x00000400 /* Caching inhibited */
|
|
#define SA_M 0x00000200 /* Memory coherence */
|
|
#define SA_G 0x00000100 /* Guarded */
|
|
#define SA_E 0x00000080 /* Endian */
|
|
/* Some additional macros for combinations often used */
|
|
#define SA_IG (SA_I | SA_G)
|
|
|
|
/* Access control */
|
|
#define AC_X 0x00000024 /* Execute */
|
|
#define AC_W 0x00000012 /* Write */
|
|
#define AC_R 0x00000009 /* Read */
|
|
/* Some additional macros for combinations often used */
|
|
#define AC_RW (AC_R | AC_W)
|
|
#define AC_RWX (AC_R | AC_W | AC_X)
|
|
|
|
/* Some handy macros */
|
|
|
|
#define EPN(e) ((e) & 0xfffffc00)
|
|
#define TLB0(epn,sz) ((EPN((epn)) | (sz) | TLB_VALID ))
|
|
#define TLB1(rpn,erpn) (((rpn) & 0xfffffc00) | (erpn))
|
|
#define TLB2(a) ((a) & 0x00000fbf)
|
|
|
|
#define tlbtab_start\
|
|
mflr r1 ;\
|
|
bl 0f ;
|
|
|
|
#define tlbtab_end\
|
|
.long 0, 0, 0 ;\
|
|
0: mflr r0 ;\
|
|
mtlr r1 ;\
|
|
blr ;
|
|
|
|
#define tlbentry(epn,sz,rpn,erpn,attr)\
|
|
.long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr)
|
|
|
|
/*----------------------------------------------------------------------------+
|
|
| TLB specific defines.
|
|
+----------------------------------------------------------------------------*/
|
|
#define TLB_256MB_ALIGN_MASK 0xFF0000000ULL
|
|
#define TLB_16MB_ALIGN_MASK 0xFFF000000ULL
|
|
#define TLB_1MB_ALIGN_MASK 0xFFFF00000ULL
|
|
#define TLB_256KB_ALIGN_MASK 0xFFFFC0000ULL
|
|
#define TLB_64KB_ALIGN_MASK 0xFFFFF0000ULL
|
|
#define TLB_16KB_ALIGN_MASK 0xFFFFFC000ULL
|
|
#define TLB_4KB_ALIGN_MASK 0xFFFFFF000ULL
|
|
#define TLB_1KB_ALIGN_MASK 0xFFFFFFC00ULL
|
|
#define TLB_256MB_SIZE 0x10000000
|
|
#define TLB_16MB_SIZE 0x01000000
|
|
#define TLB_1MB_SIZE 0x00100000
|
|
#define TLB_256KB_SIZE 0x00040000
|
|
#define TLB_64KB_SIZE 0x00010000
|
|
#define TLB_16KB_SIZE 0x00004000
|
|
#define TLB_4KB_SIZE 0x00001000
|
|
#define TLB_1KB_SIZE 0x00000400
|
|
|
|
#define TLB_WORD0_EPN_MASK 0xFFFFFC00
|
|
#define TLB_WORD0_EPN_ENCODE(n) (((unsigned long)(n))&0xFFFFFC00)
|
|
#define TLB_WORD0_EPN_DECODE(n) (((unsigned long)(n))&0xFFFFFC00)
|
|
#define TLB_WORD0_V_MASK 0x00000200
|
|
#define TLB_WORD0_V_ENABLE 0x00000200
|
|
#define TLB_WORD0_V_DISABLE 0x00000000
|
|
#define TLB_WORD0_TS_MASK 0x00000100
|
|
#define TLB_WORD0_TS_1 0x00000100
|
|
#define TLB_WORD0_TS_0 0x00000000
|
|
#define TLB_WORD0_SIZE_MASK 0x000000F0
|
|
#define TLB_WORD0_SIZE_1KB 0x00000000
|
|
#define TLB_WORD0_SIZE_4KB 0x00000010
|
|
#define TLB_WORD0_SIZE_16KB 0x00000020
|
|
#define TLB_WORD0_SIZE_64KB 0x00000030
|
|
#define TLB_WORD0_SIZE_256KB 0x00000040
|
|
#define TLB_WORD0_SIZE_1MB 0x00000050
|
|
#define TLB_WORD0_SIZE_16MB 0x00000070
|
|
#define TLB_WORD0_SIZE_256MB 0x00000090
|
|
#define TLB_WORD0_TPAR_MASK 0x0000000F
|
|
#define TLB_WORD0_TPAR_ENCODE(n) ((((unsigned long)(n))&0x0F)<<0)
|
|
#define TLB_WORD0_TPAR_DECODE(n) ((((unsigned long)(n))>>0)&0x0F)
|
|
|
|
#define TLB_WORD1_RPN_MASK 0xFFFFFC00
|
|
#define TLB_WORD1_RPN_ENCODE(n) (((unsigned long)(n))&0xFFFFFC00)
|
|
#define TLB_WORD1_RPN_DECODE(n) (((unsigned long)(n))&0xFFFFFC00)
|
|
#define TLB_WORD1_PAR1_MASK 0x00000300
|
|
#define TLB_WORD1_PAR1_ENCODE(n) ((((unsigned long)(n))&0x03)<<8)
|
|
#define TLB_WORD1_PAR1_DECODE(n) ((((unsigned long)(n))>>8)&0x03)
|
|
#define TLB_WORD1_PAR1_0 0x00000000
|
|
#define TLB_WORD1_PAR1_1 0x00000100
|
|
#define TLB_WORD1_PAR1_2 0x00000200
|
|
#define TLB_WORD1_PAR1_3 0x00000300
|
|
#define TLB_WORD1_ERPN_MASK 0x0000000F
|
|
#define TLB_WORD1_ERPN_ENCODE(n) ((((unsigned long)(n))&0x0F)<<0)
|
|
#define TLB_WORD1_ERPN_DECODE(n) ((((unsigned long)(n))>>0)&0x0F)
|
|
|
|
#define TLB_WORD2_PAR2_MASK 0xC0000000
|
|
#define TLB_WORD2_PAR2_ENCODE(n) ((((unsigned long)(n))&0x03)<<30)
|
|
#define TLB_WORD2_PAR2_DECODE(n) ((((unsigned long)(n))>>30)&0x03)
|
|
#define TLB_WORD2_PAR2_0 0x00000000
|
|
#define TLB_WORD2_PAR2_1 0x40000000
|
|
#define TLB_WORD2_PAR2_2 0x80000000
|
|
#define TLB_WORD2_PAR2_3 0xC0000000
|
|
#define TLB_WORD2_U0_MASK 0x00008000
|
|
#define TLB_WORD2_U0_ENABLE 0x00008000
|
|
#define TLB_WORD2_U0_DISABLE 0x00000000
|
|
#define TLB_WORD2_U1_MASK 0x00004000
|
|
#define TLB_WORD2_U1_ENABLE 0x00004000
|
|
#define TLB_WORD2_U1_DISABLE 0x00000000
|
|
#define TLB_WORD2_U2_MASK 0x00002000
|
|
#define TLB_WORD2_U2_ENABLE 0x00002000
|
|
#define TLB_WORD2_U2_DISABLE 0x00000000
|
|
#define TLB_WORD2_U3_MASK 0x00001000
|
|
#define TLB_WORD2_U3_ENABLE 0x00001000
|
|
#define TLB_WORD2_U3_DISABLE 0x00000000
|
|
#define TLB_WORD2_W_MASK 0x00000800
|
|
#define TLB_WORD2_W_ENABLE 0x00000800
|
|
#define TLB_WORD2_W_DISABLE 0x00000000
|
|
#define TLB_WORD2_I_MASK 0x00000400
|
|
#define TLB_WORD2_I_ENABLE 0x00000400
|
|
#define TLB_WORD2_I_DISABLE 0x00000000
|
|
#define TLB_WORD2_M_MASK 0x00000200
|
|
#define TLB_WORD2_M_ENABLE 0x00000200
|
|
#define TLB_WORD2_M_DISABLE 0x00000000
|
|
#define TLB_WORD2_G_MASK 0x00000100
|
|
#define TLB_WORD2_G_ENABLE 0x00000100
|
|
#define TLB_WORD2_G_DISABLE 0x00000000
|
|
#define TLB_WORD2_E_MASK 0x00000080
|
|
#define TLB_WORD2_E_ENABLE 0x00000080
|
|
#define TLB_WORD2_E_DISABLE 0x00000000
|
|
#define TLB_WORD2_UX_MASK 0x00000020
|
|
#define TLB_WORD2_UX_ENABLE 0x00000020
|
|
#define TLB_WORD2_UX_DISABLE 0x00000000
|
|
#define TLB_WORD2_UW_MASK 0x00000010
|
|
#define TLB_WORD2_UW_ENABLE 0x00000010
|
|
#define TLB_WORD2_UW_DISABLE 0x00000000
|
|
#define TLB_WORD2_UR_MASK 0x00000008
|
|
#define TLB_WORD2_UR_ENABLE 0x00000008
|
|
#define TLB_WORD2_UR_DISABLE 0x00000000
|
|
#define TLB_WORD2_SX_MASK 0x00000004
|
|
#define TLB_WORD2_SX_ENABLE 0x00000004
|
|
#define TLB_WORD2_SX_DISABLE 0x00000000
|
|
#define TLB_WORD2_SW_MASK 0x00000002
|
|
#define TLB_WORD2_SW_ENABLE 0x00000002
|
|
#define TLB_WORD2_SW_DISABLE 0x00000000
|
|
#define TLB_WORD2_SR_MASK 0x00000001
|
|
#define TLB_WORD2_SR_ENABLE 0x00000001
|
|
#define TLB_WORD2_SR_DISABLE 0x00000000
|
|
|
|
/*----------------------------------------------------------------------------+
|
|
| Following instructions are not available in Book E mode of the GNU assembler.
|
|
+----------------------------------------------------------------------------*/
|
|
#define DCCCI(ra,rb) .long 0x7c000000|\
|
|
(ra<<16)|(rb<<11)|(454<<1)
|
|
|
|
#define ICCCI(ra,rb) .long 0x7c000000|\
|
|
(ra<<16)|(rb<<11)|(966<<1)
|
|
|
|
#define DCREAD(rt,ra,rb) .long 0x7c000000|\
|
|
(rt<<21)|(ra<<16)|(rb<<11)|(486<<1)
|
|
|
|
#define ICREAD(ra,rb) .long 0x7c000000|\
|
|
(ra<<16)|(rb<<11)|(998<<1)
|
|
|
|
#define TLBSX(rt,ra,rb) .long 0x7c000000|\
|
|
(rt<<21)|(ra<<16)|(rb<<11)|(914<<1)
|
|
|
|
#define TLBWE(rs,ra,ws) .long 0x7c000000|\
|
|
(rs<<21)|(ra<<16)|(ws<<11)|(978<<1)
|
|
|
|
#define TLBRE(rt,ra,ws) .long 0x7c000000|\
|
|
(rt<<21)|(ra<<16)|(ws<<11)|(946<<1)
|
|
|
|
#define TLBSXDOT(rt,ra,rb) .long 0x7c000001|\
|
|
(rt<<21)|(ra<<16)|(rb<<11)|(914<<1)
|
|
|
|
#define MSYNC .long 0x7c000000|\
|
|
(598<<1)
|
|
|
|
#define MBAR_INST .long 0x7c000000|\
|
|
(854<<1)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
/* Prototypes */
|
|
void mttlb1(unsigned long index, unsigned long value);
|
|
void mttlb2(unsigned long index, unsigned long value);
|
|
void mttlb3(unsigned long index, unsigned long value);
|
|
unsigned long mftlb1(unsigned long index);
|
|
unsigned long mftlb2(unsigned long index);
|
|
unsigned long mftlb3(unsigned long index);
|
|
|
|
void program_tlb(u64 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
|
|
void remove_tlb(u32 vaddr, u32 size);
|
|
void change_tlb(u32 vaddr, u32 size, u32 tlb_word2_i_value);
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* CONFIG_440 */
|
|
#endif /* _PPC_MMU_H_ */
|