2 * PowerPC memory management structures
9 /* Hardware Page Table Entry */
11 #ifdef CONFIG_PPC64BRIDGE
12 unsigned long long vsid:52;
17 unsigned long long rpn:52;
18 #else /* CONFIG_PPC64BRIDGE */
19 unsigned long v:1; /* Entry is valid */
20 unsigned long vsid:24; /* Virtual segment identifier */
21 unsigned long h:1; /* Hash algorithm indicator */
22 unsigned long api:6; /* Abbreviated page index */
23 unsigned long rpn:20; /* Real (physical) page number */
24 #endif /* CONFIG_PPC64BRIDGE */
25 unsigned long :3; /* Unused */
26 unsigned long r:1; /* Referenced */
27 unsigned long c:1; /* Changed */
28 unsigned long w:1; /* Write-thru cache mode */
29 unsigned long i:1; /* Cache inhibited */
30 unsigned long m:1; /* Memory coherence */
31 unsigned long g:1; /* Guarded */
32 unsigned long :1; /* Unused */
33 unsigned long pp:2; /* Page protection */
36 /* Values for PP (assumes Ks=0, Kp=1) */
37 #define PP_RWXX 0 /* Supervisor read/write, User none */
38 #define PP_RWRX 1 /* Supervisor read/write, User read */
39 #define PP_RWRW 2 /* Supervisor read/write, User read/write */
40 #define PP_RXRX 3 /* Supervisor read, User read */
42 /* Segment Register */
43 typedef struct _SEGREG {
44 unsigned long t:1; /* Normal or I/O type */
45 unsigned long ks:1; /* Supervisor 'key' (normally 0) */
46 unsigned long kp:1; /* User 'key' (normally 1) */
47 unsigned long n:1; /* No-execute */
48 unsigned long :4; /* Unused */
49 unsigned long vsid:24; /* Virtual Segment Identifier */
52 /* Block Address Translation (BAT) Registers */
53 typedef struct _P601_BATU { /* Upper part of BAT for 601 processor */
54 unsigned long bepi:15; /* Effective page index (virtual address) */
55 unsigned long :8; /* unused */
57 unsigned long i:1; /* Cache inhibit */
58 unsigned long m:1; /* Memory coherence */
59 unsigned long ks:1; /* Supervisor key (normally 0) */
60 unsigned long kp:1; /* User key (normally 1) */
61 unsigned long pp:2; /* Page access protections */
64 typedef struct _BATU { /* Upper part of BAT (all except 601) */
65 #ifdef CONFIG_PPC64BRIDGE
66 unsigned long long bepi:47;
67 #else /* CONFIG_PPC64BRIDGE */
68 unsigned long bepi:15; /* Effective page index (virtual address) */
69 #endif /* CONFIG_PPC64BRIDGE */
70 unsigned long :4; /* Unused */
71 unsigned long bl:11; /* Block size mask */
72 unsigned long vs:1; /* Supervisor valid */
73 unsigned long vp:1; /* User valid */
76 typedef struct _P601_BATL { /* Lower part of BAT for 601 processor */
77 unsigned long brpn:15; /* Real page index (physical address) */
78 unsigned long :10; /* Unused */
79 unsigned long v:1; /* Valid bit */
80 unsigned long bl:6; /* Block size mask */
83 typedef struct _BATL { /* Lower part of BAT (all except 601) */
84 #ifdef CONFIG_PPC64BRIDGE
85 unsigned long long brpn:47;
86 #else /* CONFIG_PPC64BRIDGE */
87 unsigned long brpn:15; /* Real page index (physical address) */
88 #endif /* CONFIG_PPC64BRIDGE */
89 unsigned long :10; /* Unused */
90 unsigned long w:1; /* Write-thru cache */
91 unsigned long i:1; /* Cache inhibit */
92 unsigned long m:1; /* Memory coherence */
93 unsigned long g:1; /* Guarded (MBZ in IBAT) */
94 unsigned long :1; /* Unused */
95 unsigned long pp:2; /* Page access protections */
99 BATU batu; /* Upper register */
100 BATL batl; /* Lower register */
103 typedef struct _P601_BAT {
104 P601_BATU batu; /* Upper register */
105 P601_BATL batl; /* Lower register */
109 * Simulated two-level MMU. This structure is used by the kernel
110 * to keep track of MMU mappings and is used to update/maintain
111 * the hardware HASH table which is really a cache of mappings.
113 * The simulated structures mimic the hardware available on other
114 * platforms, notably the 80x86 and 680x0.
117 typedef struct _pte {
118 unsigned long page_num:20;
119 unsigned long flags:12; /* Page flags (some unused bits) */
122 #define PD_SHIFT (10+12) /* Page directory */
123 #define PD_MASK 0x02FF
124 #define PT_SHIFT (12) /* Page Table */
125 #define PT_MASK 0x02FF
126 #define PG_SHIFT (12) /* Page Entry */
131 typedef struct _MMU_context {
132 SEGREG segs[16]; /* Segment registers */
133 pte **pmap; /* Two-level page-map structure */
136 extern void _tlbie(unsigned long va); /* invalidate a TLB entry */
137 extern void _tlbia(void); /* invalidate all TLB entries */
139 #ifdef CONFIG_ADDR_MAP
140 extern void init_addr_map(void);
144 IBAT0 = 0, IBAT1, IBAT2, IBAT3,
145 DBAT0, DBAT1, DBAT2, DBAT3,
146 #ifdef CONFIG_HIGH_BATS
147 IBAT4, IBAT5, IBAT6, IBAT7,
148 DBAT4, DBAT5, DBAT6, DBAT7
152 extern int read_bat(ppc_bat_t bat, unsigned long *upper, unsigned long *lower);
153 extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
154 extern void print_bats(void);
156 #endif /* __ASSEMBLY__ */
158 #define BATU_VS 0x00000002
159 #define BATU_VP 0x00000001
160 #define BATU_INVALID 0x00000000
162 #define BATL_WRITETHROUGH 0x00000040
163 #define BATL_CACHEINHIBIT 0x00000020
164 #define BATL_MEMCOHERENCE 0x00000010
165 #define BATL_GUARDEDSTORAGE 0x00000008
166 #define BATL_NO_ACCESS 0x00000000
168 #define BATL_PP_MSK 0x00000003
169 #define BATL_PP_00 0x00000000 /* No access */
170 #define BATL_PP_01 0x00000001 /* Read-only */
171 #define BATL_PP_10 0x00000002 /* Read-write */
172 #define BATL_PP_11 0x00000003
174 #define BATL_PP_NO_ACCESS BATL_PP_00
175 #define BATL_PP_RO BATL_PP_01
176 #define BATL_PP_RW BATL_PP_10
178 /* BAT Block size values */
179 #define BATU_BL_128K 0x00000000
180 #define BATU_BL_256K 0x00000004
181 #define BATU_BL_512K 0x0000000c
182 #define BATU_BL_1M 0x0000001c
183 #define BATU_BL_2M 0x0000003c
184 #define BATU_BL_4M 0x0000007c
185 #define BATU_BL_8M 0x000000fc
186 #define BATU_BL_16M 0x000001fc
187 #define BATU_BL_32M 0x000003fc
188 #define BATU_BL_64M 0x000007fc
189 #define BATU_BL_128M 0x00000ffc
190 #define BATU_BL_256M 0x00001ffc
192 /* Block lengths for processors that support extended block length */
194 #define BATU_BL_512M 0x00003ffc
195 #define BATU_BL_1G 0x00007ffc
196 #define BATU_BL_2G 0x0000fffc
197 #define BATU_BL_4G 0x0001fffc
198 #define BATU_BL_MAX BATU_BL_4G
200 #define BATU_BL_MAX BATU_BL_256M
203 /* BAT Access Protection */
204 #define BPP_XX 0x00 /* No access */
205 #define BPP_RX 0x01 /* Read only */
206 #define BPP_RW 0x02 /* Read/write */
208 /* Macros to get values from BATs, once data is in the BAT register format */
209 #define BATU_VALID(x) (x & 0x3)
210 #define BATU_VADDR(x) (x & 0xfffe0000)
211 #define BATL_PADDR(x) ((phys_addr_t)((x & 0xfffe0000) \
212 | ((x & 0x0e00ULL) << 24) \
213 | ((x & 0x04ULL) << 30)))
214 #define BATU_SIZE(x) (1ULL << (fls((x & BATU_BL_MAX) >> 2) + 17))
216 /* bytes into BATU_BL */
217 #define TO_BATU_BL(x) \
218 (u32)((((1ull << __ilog2_u64((u64)x)) / (128 * 1024)) - 1) * 4)
220 /* Used to set up SDR1 register */
221 #define HASH_TABLE_SIZE_64K 0x00010000
222 #define HASH_TABLE_SIZE_128K 0x00020000
223 #define HASH_TABLE_SIZE_256K 0x00040000
224 #define HASH_TABLE_SIZE_512K 0x00080000
225 #define HASH_TABLE_SIZE_1M 0x00100000
226 #define HASH_TABLE_SIZE_2M 0x00200000
227 #define HASH_TABLE_SIZE_4M 0x00400000
228 #define HASH_TABLE_MASK_64K 0x000
229 #define HASH_TABLE_MASK_128K 0x001
230 #define HASH_TABLE_MASK_256K 0x003
231 #define HASH_TABLE_MASK_512K 0x007
232 #define HASH_TABLE_MASK_1M 0x00F
233 #define HASH_TABLE_MASK_2M 0x01F
234 #define HASH_TABLE_MASK_4M 0x03F
236 /* Control/status registers for the MPC8xx.
237 * A write operation to these registers causes serialized access.
238 * During software tablewalk, the registers used perform mask/shift-add
239 * operations when written/read. A TLB entry is created when the Mx_RPN
240 * is written, and the contents of several registers are used to
243 #define MI_CTR 784 /* Instruction TLB control register */
244 #define MI_GPM 0x80000000 /* Set domain manager mode */
245 #define MI_PPM 0x40000000 /* Set subpage protection */
246 #define MI_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
247 #define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */
248 #define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
249 #define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */
250 #define MI_RESETVAL 0x00000000 /* Value of register at reset */
252 /* These are the Ks and Kp from the PowerPC books. For proper operation,
256 #define MI_Ks 0x80000000 /* Should not be set */
257 #define MI_Kp 0x40000000 /* Should always be set */
259 /* The effective page number register. When read, contains the information
260 * about the last instruction TLB miss. When MI_RPN is written, bits in
261 * this register are used to create the TLB entry.
264 #define MI_EPNMASK 0xfffff000 /* Effective page number for entry */
265 #define MI_EVALID 0x00000200 /* Entry is valid */
266 #define MI_ASIDMASK 0x0000000f /* ASID match value */
267 /* Reset value is undefined */
269 /* A "level 1" or "segment" or whatever you want to call it register.
270 * For the instruction TLB, it contains bits that get loaded into the
271 * TLB entry when the MI_RPN is written.
274 #define MI_APG 0x000001e0 /* Access protection group (0) */
275 #define MI_GUARDED 0x00000010 /* Guarded storage */
276 #define MI_PSMASK 0x0000000c /* Mask of page size bits */
277 #define MI_PS8MEG 0x0000000c /* 8M page size */
278 #define MI_PS512K 0x00000004 /* 512K page size */
279 #define MI_PS4K_16K 0x00000000 /* 4K or 16K page size */
280 #define MI_SVALID 0x00000001 /* Segment entry is valid */
281 /* Reset value is undefined */
283 /* Real page number. Defined by the pte. Writing this register
284 * causes a TLB entry to be created for the instruction TLB, using
285 * additional information from the MI_EPN, and MI_TWC registers.
289 /* Define an RPN value for mapping kernel memory to large virtual
290 * pages for boot initialization. This has real page number of 0,
291 * large page size, shared page, cache enabled, and valid.
292 * Also mark all subpages valid and write access.
294 #define MI_BOOTINIT 0x000001fd
296 #define MD_CTR 792 /* Data TLB control register */
297 #define MD_GPM 0x80000000 /* Set domain manager mode */
298 #define MD_PPM 0x40000000 /* Set subpage protection */
299 #define MD_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
300 #define MD_WTDEF 0x10000000 /* Set writethrough when MMU dis */
301 #define MD_RSV4I 0x08000000 /* Reserve 4 TLB entries */
302 #define MD_TWAM 0x04000000 /* Use 4K page hardware assist */
303 #define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
304 #define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */
305 #define MD_RESETVAL 0x04000000 /* Value of register at reset */
307 #define M_CASID 793 /* Address space ID (context) to match */
308 #define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */
311 /* These are the Ks and Kp from the PowerPC books. For proper operation,
315 #define MD_Ks 0x80000000 /* Should not be set */
316 #define MD_Kp 0x40000000 /* Should always be set */
318 /* The effective page number register. When read, contains the information
319 * about the last instruction TLB miss. When MD_RPN is written, bits in
320 * this register are used to create the TLB entry.
323 #define MD_EPNMASK 0xfffff000 /* Effective page number for entry */
324 #define MD_EVALID 0x00000200 /* Entry is valid */
325 #define MD_ASIDMASK 0x0000000f /* ASID match value */
326 /* Reset value is undefined */
328 /* The pointer to the base address of the first level page table.
329 * During a software tablewalk, reading this register provides the address
330 * of the entry associated with MD_EPN.
333 #define M_L1TB 0xfffff000 /* Level 1 table base address */
334 #define M_L1INDX 0x00000ffc /* Level 1 index, when read */
335 /* Reset value is undefined */
337 /* A "level 1" or "segment" or whatever you want to call it register.
338 * For the data TLB, it contains bits that get loaded into the TLB entry
339 * when the MD_RPN is written. It is also provides the hardware assist
340 * for finding the PTE address during software tablewalk.
343 #define MD_L2TB 0xfffff000 /* Level 2 table base address */
344 #define MD_L2INDX 0xfffffe00 /* Level 2 index (*pte), when read */
345 #define MD_APG 0x000001e0 /* Access protection group (0) */
346 #define MD_GUARDED 0x00000010 /* Guarded storage */
347 #define MD_PSMASK 0x0000000c /* Mask of page size bits */
348 #define MD_PS8MEG 0x0000000c /* 8M page size */
349 #define MD_PS512K 0x00000004 /* 512K page size */
350 #define MD_PS4K_16K 0x00000000 /* 4K or 16K page size */
351 #define MD_WT 0x00000002 /* Use writethrough page attribute */
352 #define MD_SVALID 0x00000001 /* Segment entry is valid */
353 /* Reset value is undefined */
356 /* Real page number. Defined by the pte. Writing this register
357 * causes a TLB entry to be created for the data TLB, using
358 * additional information from the MD_EPN, and MD_TWC registers.
362 /* This is a temporary storage register that could be used to save
363 * a processor working register during a tablewalk.
368 * At present, all PowerPC 400-class processors share a similar TLB
369 * architecture. The instruction and data sides share a unified,
370 * 64-entry, fully-associative TLB which is maintained totally under
371 * software control. In addition, the instruction side has a
372 * hardware-managed, 4-entry, fully- associative TLB which serves as a
373 * first level to the shared TLB. These two TLBs are known as the UTLB
374 * and ITLB, respectively.
377 #define PPC4XX_TLB_SIZE 64
380 * TLB entries are defined by a "high" tag portion and a "low" data
381 * portion. On all architectures, the data portion is 32-bits.
383 * TLB entries are managed entirely under software control by reading,
384 * writing, and searchoing using the 4xx-specific tlbre, tlbwr, and tlbsx
392 #define MAS0_TLBSEL_MSK 0x30000000
393 #define MAS0_TLBSEL(x) (((x) << 28) & MAS0_TLBSEL_MSK)
394 #define MAS0_ESEL_MSK 0x0FFF0000
395 #define MAS0_ESEL(x) (((x) << 16) & MAS0_ESEL_MSK)
396 #define MAS0_NV(x) ((x) & 0x00000FFF)
398 #define MAS1_VALID 0x80000000
399 #define MAS1_IPROT 0x40000000
400 #define MAS1_TID(x) (((x) << 16) & 0x3FFF0000)
401 #define MAS1_TS 0x00001000
402 #define MAS1_TSIZE(x) (((x) << 7) & 0x00000F80)
403 #define TSIZE_TO_BYTES(x) (1ULL << ((x) + 10))
405 #define MAS2_EPN 0xFFFFF000
406 #define MAS2_X0 0x00000040
407 #define MAS2_X1 0x00000020
408 #define MAS2_W 0x00000010
409 #define MAS2_I 0x00000008
410 #define MAS2_M 0x00000004
411 #define MAS2_G 0x00000002
412 #define MAS2_E 0x00000001
414 #define MAS3_RPN 0xFFFFF000
415 #define MAS3_U0 0x00000200
416 #define MAS3_U1 0x00000100
417 #define MAS3_U2 0x00000080
418 #define MAS3_U3 0x00000040
419 #define MAS3_UX 0x00000020
420 #define MAS3_SX 0x00000010
421 #define MAS3_UW 0x00000008
422 #define MAS3_SW 0x00000004
423 #define MAS3_UR 0x00000002
424 #define MAS3_SR 0x00000001
426 #define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
427 #define MAS4_TIDDSEL 0x000F0000
428 #define MAS4_TSIZED(x) MAS1_TSIZE(x)
429 #define MAS4_X0D 0x00000040
430 #define MAS4_X1D 0x00000020
431 #define MAS4_WD 0x00000010
432 #define MAS4_ID 0x00000008
433 #define MAS4_MD 0x00000004
434 #define MAS4_GD 0x00000002
435 #define MAS4_ED 0x00000001
437 #define MAS6_SPID0 0x3FFF0000
438 #define MAS6_SPID1 0x00007FFE
439 #define MAS6_SAS 0x00000001
440 #define MAS6_SPID MAS6_SPID0
442 #define MAS7_RPN 0xFFFFFFFF
444 #define FSL_BOOKE_MAS0(tlbsel,esel,nv) \
445 (MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel) | MAS0_NV(nv))
446 #define FSL_BOOKE_MAS1(v,iprot,tid,ts,tsize) \
447 ((((v) << 31) & MAS1_VALID) |\
448 (((iprot) << 30) & MAS1_IPROT) |\
450 (((ts) << 12) & MAS1_TS) |\
452 #define FSL_BOOKE_MAS2(epn, wimge) \
453 (((epn) & MAS3_RPN) | (wimge))
454 #define FSL_BOOKE_MAS3(rpn, user, perms) \
455 (((rpn) & MAS3_RPN) | (user) | (perms))
456 #define FSL_BOOKE_MAS7(rpn) \
459 #define BOOKE_PAGESZ_1K 0
460 #define BOOKE_PAGESZ_2K 1
461 #define BOOKE_PAGESZ_4K 2
462 #define BOOKE_PAGESZ_8K 3
463 #define BOOKE_PAGESZ_16K 4
464 #define BOOKE_PAGESZ_32K 5
465 #define BOOKE_PAGESZ_64K 6
466 #define BOOKE_PAGESZ_128K 7
467 #define BOOKE_PAGESZ_256K 8
468 #define BOOKE_PAGESZ_512K 9
469 #define BOOKE_PAGESZ_1M 10
470 #define BOOKE_PAGESZ_2M 11
471 #define BOOKE_PAGESZ_4M 12
472 #define BOOKE_PAGESZ_8M 13
473 #define BOOKE_PAGESZ_16M 14
474 #define BOOKE_PAGESZ_32M 15
475 #define BOOKE_PAGESZ_64M 16
476 #define BOOKE_PAGESZ_128M 17
477 #define BOOKE_PAGESZ_256M 18
478 #define BOOKE_PAGESZ_512M 19
479 #define BOOKE_PAGESZ_1G 20
480 #define BOOKE_PAGESZ_2G 21
481 #define BOOKE_PAGESZ_4G 22
482 #define BOOKE_PAGESZ_8G 23
483 #define BOOKE_PAGESZ_16GB 24
484 #define BOOKE_PAGESZ_32GB 25
485 #define BOOKE_PAGESZ_64GB 26
486 #define BOOKE_PAGESZ_128GB 27
487 #define BOOKE_PAGESZ_256GB 28
488 #define BOOKE_PAGESZ_512GB 29
489 #define BOOKE_PAGESZ_1TB 30
490 #define BOOKE_PAGESZ_2TB 31
492 #define TLBIVAX_ALL 4
493 #define TLBIVAX_TLB0 0
494 #define TLBIVAX_TLB1 8
498 extern void set_tlb(u8 tlb, u32 epn, u64 rpn,
500 u8 ts, u8 esel, u8 tsize, u8 iprot);
501 extern void disable_tlb(u8 esel);
502 extern void invalidate_tlb(u8 tlb);
503 extern void init_tlbs(void);
504 extern int find_tlb_idx(void *addr, u8 tlbsel);
505 extern void init_used_tlb_cams(void);
506 extern int find_free_tlbcam(void);
507 extern void print_tlbcam(void);
509 extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg);
510 extern void clear_ddr_tlbs(unsigned int memsize_in_meg);
517 extern uint64_t tlb_map_range(ulong v_addr, phys_addr_t p_addr, uint64_t size,
518 enum tlb_map_type map_type);
520 extern void write_tlb(u32 _mas0, u32 _mas1, u32 _mas2, u32 _mas3, u32 _mas7);
522 #define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz, _iprot) \
523 { .mas0 = FSL_BOOKE_MAS0(_tlb, _esel, 0), \
524 .mas1 = FSL_BOOKE_MAS1(1, _iprot, 0, _ts, _sz), \
525 .mas2 = FSL_BOOKE_MAS2(_epn, _wimge), \
526 .mas3 = FSL_BOOKE_MAS3(_rpn, 0, _perms), \
527 .mas7 = FSL_BOOKE_MAS7(_rpn), }
529 struct fsl_e_tlb_entry {
537 extern struct fsl_e_tlb_entry tlb_table[];
538 extern int num_tlb_entries;
543 #define LAWAR_EN 0x80000000
544 #define LAWAR_SIZE 0x0000003F
546 #define LAWAR_TRGT_IF_PCI 0x00000000
547 #define LAWAR_TRGT_IF_PCI1 0x00000000
548 #define LAWAR_TRGT_IF_PCIX 0x00000000
549 #define LAWAR_TRGT_IF_PCI2 0x00100000
550 #define LAWAR_TRGT_IF_PCIE1 0x00200000
551 #define LAWAR_TRGT_IF_PCIE2 0x00100000
552 #define LAWAR_TRGT_IF_PCIE3 0x00300000
553 #define LAWAR_TRGT_IF_LBC 0x00400000
554 #define LAWAR_TRGT_IF_CCSR 0x00800000
555 #define LAWAR_TRGT_IF_DDR_INTERLEAVED 0x00B00000
556 #define LAWAR_TRGT_IF_RIO 0x00c00000
557 #define LAWAR_TRGT_IF_DDR 0x00f00000
558 #define LAWAR_TRGT_IF_DDR1 0x00f00000
559 #define LAWAR_TRGT_IF_DDR2 0x01600000
561 #define LAWAR_SIZE_BASE 0xa
562 #define LAWAR_SIZE_4K (LAWAR_SIZE_BASE+1)
563 #define LAWAR_SIZE_8K (LAWAR_SIZE_BASE+2)
564 #define LAWAR_SIZE_16K (LAWAR_SIZE_BASE+3)
565 #define LAWAR_SIZE_32K (LAWAR_SIZE_BASE+4)
566 #define LAWAR_SIZE_64K (LAWAR_SIZE_BASE+5)
567 #define LAWAR_SIZE_128K (LAWAR_SIZE_BASE+6)
568 #define LAWAR_SIZE_256K (LAWAR_SIZE_BASE+7)
569 #define LAWAR_SIZE_512K (LAWAR_SIZE_BASE+8)
570 #define LAWAR_SIZE_1M (LAWAR_SIZE_BASE+9)
571 #define LAWAR_SIZE_2M (LAWAR_SIZE_BASE+10)
572 #define LAWAR_SIZE_4M (LAWAR_SIZE_BASE+11)
573 #define LAWAR_SIZE_8M (LAWAR_SIZE_BASE+12)
574 #define LAWAR_SIZE_16M (LAWAR_SIZE_BASE+13)
575 #define LAWAR_SIZE_32M (LAWAR_SIZE_BASE+14)
576 #define LAWAR_SIZE_64M (LAWAR_SIZE_BASE+15)
577 #define LAWAR_SIZE_128M (LAWAR_SIZE_BASE+16)
578 #define LAWAR_SIZE_256M (LAWAR_SIZE_BASE+17)
579 #define LAWAR_SIZE_512M (LAWAR_SIZE_BASE+18)
580 #define LAWAR_SIZE_1G (LAWAR_SIZE_BASE+19)
581 #define LAWAR_SIZE_2G (LAWAR_SIZE_BASE+20)
582 #define LAWAR_SIZE_4G (LAWAR_SIZE_BASE+21)
583 #define LAWAR_SIZE_8G (LAWAR_SIZE_BASE+22)
584 #define LAWAR_SIZE_16G (LAWAR_SIZE_BASE+23)
585 #define LAWAR_SIZE_32G (LAWAR_SIZE_BASE+24)
590 #define TLB_VALID 0x00000200
592 /* Supported page sizes */
594 #define SZ_1K 0x00000000
595 #define SZ_4K 0x00000010
596 #define SZ_16K 0x00000020
597 #define SZ_64K 0x00000030
598 #define SZ_256K 0x00000040
599 #define SZ_1M 0x00000050
600 #define SZ_16M 0x00000070
601 #define SZ_256M 0x00000090
603 /* Storage attributes */
604 #define SA_W 0x00000800 /* Write-through */
605 #define SA_I 0x00000400 /* Caching inhibited */
606 #define SA_M 0x00000200 /* Memory coherence */
607 #define SA_G 0x00000100 /* Guarded */
608 #define SA_E 0x00000080 /* Endian */
609 /* Some additional macros for combinations often used */
610 #define SA_IG (SA_I | SA_G)
613 #define AC_X 0x00000024 /* Execute */
614 #define AC_W 0x00000012 /* Write */
615 #define AC_R 0x00000009 /* Read */
616 /* Some additional macros for combinations often used */
617 #define AC_RW (AC_R | AC_W)
618 #define AC_RWX (AC_R | AC_W | AC_X)
620 /* Some handy macros */
622 #define EPN(e) ((e) & 0xfffffc00)
623 #define TLB0(epn,sz) ((EPN((epn)) | (sz) | TLB_VALID ))
624 #define TLB1(rpn,erpn) (((rpn) & 0xfffffc00) | (erpn))
625 #define TLB2(a) ((a) & 0x00000fbf)
627 #define tlbtab_start\
637 #define tlbentry(epn,sz,rpn,erpn,attr)\
638 .long TLB0(epn,sz),TLB1(rpn,erpn),TLB2(attr)
640 /*----------------------------------------------------------------------------+
641 | TLB specific defines.
642 +----------------------------------------------------------------------------*/
643 #define TLB_256MB_ALIGN_MASK 0xFF0000000ULL
644 #define TLB_16MB_ALIGN_MASK 0xFFF000000ULL
645 #define TLB_1MB_ALIGN_MASK 0xFFFF00000ULL
646 #define TLB_256KB_ALIGN_MASK 0xFFFFC0000ULL
647 #define TLB_64KB_ALIGN_MASK 0xFFFFF0000ULL
648 #define TLB_16KB_ALIGN_MASK 0xFFFFFC000ULL
649 #define TLB_4KB_ALIGN_MASK 0xFFFFFF000ULL
650 #define TLB_1KB_ALIGN_MASK 0xFFFFFFC00ULL
651 #define TLB_256MB_SIZE 0x10000000
652 #define TLB_16MB_SIZE 0x01000000
653 #define TLB_1MB_SIZE 0x00100000
654 #define TLB_256KB_SIZE 0x00040000
655 #define TLB_64KB_SIZE 0x00010000
656 #define TLB_16KB_SIZE 0x00004000
657 #define TLB_4KB_SIZE 0x00001000
658 #define TLB_1KB_SIZE 0x00000400
660 #define TLB_WORD0_EPN_MASK 0xFFFFFC00
661 #define TLB_WORD0_EPN_ENCODE(n) (((unsigned long)(n))&0xFFFFFC00)
662 #define TLB_WORD0_EPN_DECODE(n) (((unsigned long)(n))&0xFFFFFC00)
663 #define TLB_WORD0_V_MASK 0x00000200
664 #define TLB_WORD0_V_ENABLE 0x00000200
665 #define TLB_WORD0_V_DISABLE 0x00000000
666 #define TLB_WORD0_TS_MASK 0x00000100
667 #define TLB_WORD0_TS_1 0x00000100
668 #define TLB_WORD0_TS_0 0x00000000
669 #define TLB_WORD0_SIZE_MASK 0x000000F0
670 #define TLB_WORD0_SIZE_1KB 0x00000000
671 #define TLB_WORD0_SIZE_4KB 0x00000010
672 #define TLB_WORD0_SIZE_16KB 0x00000020
673 #define TLB_WORD0_SIZE_64KB 0x00000030
674 #define TLB_WORD0_SIZE_256KB 0x00000040
675 #define TLB_WORD0_SIZE_1MB 0x00000050
676 #define TLB_WORD0_SIZE_16MB 0x00000070
677 #define TLB_WORD0_SIZE_256MB 0x00000090
678 #define TLB_WORD0_TPAR_MASK 0x0000000F
679 #define TLB_WORD0_TPAR_ENCODE(n) ((((unsigned long)(n))&0x0F)<<0)
680 #define TLB_WORD0_TPAR_DECODE(n) ((((unsigned long)(n))>>0)&0x0F)
682 #define TLB_WORD1_RPN_MASK 0xFFFFFC00
683 #define TLB_WORD1_RPN_ENCODE(n) (((unsigned long)(n))&0xFFFFFC00)
684 #define TLB_WORD1_RPN_DECODE(n) (((unsigned long)(n))&0xFFFFFC00)
685 #define TLB_WORD1_PAR1_MASK 0x00000300
686 #define TLB_WORD1_PAR1_ENCODE(n) ((((unsigned long)(n))&0x03)<<8)
687 #define TLB_WORD1_PAR1_DECODE(n) ((((unsigned long)(n))>>8)&0x03)
688 #define TLB_WORD1_PAR1_0 0x00000000
689 #define TLB_WORD1_PAR1_1 0x00000100
690 #define TLB_WORD1_PAR1_2 0x00000200
691 #define TLB_WORD1_PAR1_3 0x00000300
692 #define TLB_WORD1_ERPN_MASK 0x0000000F
693 #define TLB_WORD1_ERPN_ENCODE(n) ((((unsigned long)(n))&0x0F)<<0)
694 #define TLB_WORD1_ERPN_DECODE(n) ((((unsigned long)(n))>>0)&0x0F)
696 #define TLB_WORD2_PAR2_MASK 0xC0000000
697 #define TLB_WORD2_PAR2_ENCODE(n) ((((unsigned long)(n))&0x03)<<30)
698 #define TLB_WORD2_PAR2_DECODE(n) ((((unsigned long)(n))>>30)&0x03)
699 #define TLB_WORD2_PAR2_0 0x00000000
700 #define TLB_WORD2_PAR2_1 0x40000000
701 #define TLB_WORD2_PAR2_2 0x80000000
702 #define TLB_WORD2_PAR2_3 0xC0000000
703 #define TLB_WORD2_U0_MASK 0x00008000
704 #define TLB_WORD2_U0_ENABLE 0x00008000
705 #define TLB_WORD2_U0_DISABLE 0x00000000
706 #define TLB_WORD2_U1_MASK 0x00004000
707 #define TLB_WORD2_U1_ENABLE 0x00004000
708 #define TLB_WORD2_U1_DISABLE 0x00000000
709 #define TLB_WORD2_U2_MASK 0x00002000
710 #define TLB_WORD2_U2_ENABLE 0x00002000
711 #define TLB_WORD2_U2_DISABLE 0x00000000
712 #define TLB_WORD2_U3_MASK 0x00001000
713 #define TLB_WORD2_U3_ENABLE 0x00001000
714 #define TLB_WORD2_U3_DISABLE 0x00000000
715 #define TLB_WORD2_W_MASK 0x00000800
716 #define TLB_WORD2_W_ENABLE 0x00000800
717 #define TLB_WORD2_W_DISABLE 0x00000000
718 #define TLB_WORD2_I_MASK 0x00000400
719 #define TLB_WORD2_I_ENABLE 0x00000400
720 #define TLB_WORD2_I_DISABLE 0x00000000
721 #define TLB_WORD2_M_MASK 0x00000200
722 #define TLB_WORD2_M_ENABLE 0x00000200
723 #define TLB_WORD2_M_DISABLE 0x00000000
724 #define TLB_WORD2_G_MASK 0x00000100
725 #define TLB_WORD2_G_ENABLE 0x00000100
726 #define TLB_WORD2_G_DISABLE 0x00000000
727 #define TLB_WORD2_E_MASK 0x00000080
728 #define TLB_WORD2_E_ENABLE 0x00000080
729 #define TLB_WORD2_E_DISABLE 0x00000000
730 #define TLB_WORD2_UX_MASK 0x00000020
731 #define TLB_WORD2_UX_ENABLE 0x00000020
732 #define TLB_WORD2_UX_DISABLE 0x00000000
733 #define TLB_WORD2_UW_MASK 0x00000010
734 #define TLB_WORD2_UW_ENABLE 0x00000010
735 #define TLB_WORD2_UW_DISABLE 0x00000000
736 #define TLB_WORD2_UR_MASK 0x00000008
737 #define TLB_WORD2_UR_ENABLE 0x00000008
738 #define TLB_WORD2_UR_DISABLE 0x00000000
739 #define TLB_WORD2_SX_MASK 0x00000004
740 #define TLB_WORD2_SX_ENABLE 0x00000004
741 #define TLB_WORD2_SX_DISABLE 0x00000000
742 #define TLB_WORD2_SW_MASK 0x00000002
743 #define TLB_WORD2_SW_ENABLE 0x00000002
744 #define TLB_WORD2_SW_DISABLE 0x00000000
745 #define TLB_WORD2_SR_MASK 0x00000001
746 #define TLB_WORD2_SR_ENABLE 0x00000001
747 #define TLB_WORD2_SR_DISABLE 0x00000000
749 /*----------------------------------------------------------------------------+
750 | Following instructions are not available in Book E mode of the GNU assembler.
751 +----------------------------------------------------------------------------*/
752 #define DCCCI(ra,rb) .long 0x7c000000|\
753 (ra<<16)|(rb<<11)|(454<<1)
755 #define ICCCI(ra,rb) .long 0x7c000000|\
756 (ra<<16)|(rb<<11)|(966<<1)
758 #define DCREAD(rt,ra,rb) .long 0x7c000000|\
759 (rt<<21)|(ra<<16)|(rb<<11)|(486<<1)
761 #define ICREAD(ra,rb) .long 0x7c000000|\
762 (ra<<16)|(rb<<11)|(998<<1)
764 #define TLBSX(rt,ra,rb) .long 0x7c000000|\
765 (rt<<21)|(ra<<16)|(rb<<11)|(914<<1)
767 #define TLBWE(rs,ra,ws) .long 0x7c000000|\
768 (rs<<21)|(ra<<16)|(ws<<11)|(978<<1)
770 #define TLBRE(rt,ra,ws) .long 0x7c000000|\
771 (rt<<21)|(ra<<16)|(ws<<11)|(946<<1)
773 #define TLBSXDOT(rt,ra,rb) .long 0x7c000001|\
774 (rt<<21)|(ra<<16)|(rb<<11)|(914<<1)
776 #define MSYNC .long 0x7c000000|\
779 #define MBAR_INST .long 0x7c000000|\
784 void mttlb1(unsigned long index, unsigned long value);
785 void mttlb2(unsigned long index, unsigned long value);
786 void mttlb3(unsigned long index, unsigned long value);
787 unsigned long mftlb1(unsigned long index);
788 unsigned long mftlb2(unsigned long index);
789 unsigned long mftlb3(unsigned long index);
791 void program_tlb(u64 phys_addr, u32 virt_addr, u32 size, u32 tlb_word2_i_value);
792 void remove_tlb(u32 vaddr, u32 size);
793 void change_tlb(u32 vaddr, u32 size, u32 tlb_word2_i_value);
794 #endif /* __ASSEMBLY__ */
796 #endif /* CONFIG_440 */
797 #endif /* _PPC_MMU_H_ */