1#ifndef _ASM_POWERPC_MMU_BOOK3E_H_ 2#define _ASM_POWERPC_MMU_BOOK3E_H_ 3/* 4 * Freescale Book-E/Book-3e (ISA 2.06+) MMU support 5 */ 6 7/* Book-3e defined page sizes */ 8#define BOOK3E_PAGESZ_1K 0 9#define BOOK3E_PAGESZ_2K 1 10#define BOOK3E_PAGESZ_4K 2 11#define BOOK3E_PAGESZ_8K 3 12#define BOOK3E_PAGESZ_16K 4 13#define BOOK3E_PAGESZ_32K 5 14#define BOOK3E_PAGESZ_64K 6 15#define BOOK3E_PAGESZ_128K 7 16#define BOOK3E_PAGESZ_256K 8 17#define BOOK3E_PAGESZ_512K 9 18#define BOOK3E_PAGESZ_1M 10 19#define BOOK3E_PAGESZ_2M 11 20#define BOOK3E_PAGESZ_4M 12 21#define BOOK3E_PAGESZ_8M 13 22#define BOOK3E_PAGESZ_16M 14 23#define BOOK3E_PAGESZ_32M 15 24#define BOOK3E_PAGESZ_64M 16 25#define BOOK3E_PAGESZ_128M 17 26#define BOOK3E_PAGESZ_256M 18 27#define BOOK3E_PAGESZ_512M 19 28#define BOOK3E_PAGESZ_1GB 20 29#define BOOK3E_PAGESZ_2GB 21 30#define BOOK3E_PAGESZ_4GB 22 31#define BOOK3E_PAGESZ_8GB 23 32#define BOOK3E_PAGESZ_16GB 24 33#define BOOK3E_PAGESZ_32GB 25 34#define BOOK3E_PAGESZ_64GB 26 35#define BOOK3E_PAGESZ_128GB 27 36#define BOOK3E_PAGESZ_256GB 28 37#define BOOK3E_PAGESZ_512GB 29 38#define BOOK3E_PAGESZ_1TB 30 39#define BOOK3E_PAGESZ_2TB 31 40 41/* MAS registers bit definitions */ 42 43#define MAS0_TLBSEL(x) (((x) << 28) & 0x30000000) 44#define MAS0_ESEL_MASK 0x0FFF0000 45#define MAS0_ESEL_SHIFT 16 46#define MAS0_ESEL(x) (((x) << MAS0_ESEL_SHIFT) & MAS0_ESEL_MASK) 47#define MAS0_NV(x) ((x) & 0x00000FFF) 48#define MAS0_HES 0x00004000 49#define MAS0_WQ_ALLWAYS 0x00000000 50#define MAS0_WQ_COND 0x00001000 51#define MAS0_WQ_CLR_RSRV 0x00002000 52 53#define MAS1_VALID 0x80000000 54#define MAS1_IPROT 0x40000000 55#define MAS1_TID(x) (((x) << 16) & 0x3FFF0000) 56#define MAS1_IND 0x00002000 57#define MAS1_TS 0x00001000 58#define MAS1_TSIZE_MASK 0x00000f80 59#define MAS1_TSIZE_SHIFT 7 60#define MAS1_TSIZE(x) (((x) << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK) 61 62#define MAS2_EPN (~0xFFFUL) 63#define MAS2_X0 0x00000040 64#define MAS2_X1 0x00000020 65#define MAS2_W 0x00000010 66#define MAS2_I 0x00000008 67#define MAS2_M 0x00000004 68#define MAS2_G 0x00000002 69#define MAS2_E 0x00000001 70#define MAS2_WIMGE_MASK 0x0000001f 71#define MAS2_EPN_MASK(size) (~0 << (size + 10)) 72#define MAS2_VAL(addr, size, flags) ((addr) & MAS2_EPN_MASK(size) | (flags)) 73 74#define MAS3_RPN 0xFFFFF000 75#define MAS3_U0 0x00000200 76#define MAS3_U1 0x00000100 77#define MAS3_U2 0x00000080 78#define MAS3_U3 0x00000040 79#define MAS3_UX 0x00000020 80#define MAS3_SX 0x00000010 81#define MAS3_UW 0x00000008 82#define MAS3_SW 0x00000004 83#define MAS3_UR 0x00000002 84#define MAS3_SR 0x00000001 85#define MAS3_BAP_MASK 0x0000003f 86#define MAS3_SPSIZE 0x0000003e 87#define MAS3_SPSIZE_SHIFT 1 88 89#define MAS4_TLBSELD(x) MAS0_TLBSEL(x) 90#define MAS4_INDD 0x00008000 /* Default IND */ 91#define MAS4_TSIZED(x) MAS1_TSIZE(x) 92#define MAS4_X0D 0x00000040 93#define MAS4_X1D 0x00000020 94#define MAS4_WD 0x00000010 95#define MAS4_ID 0x00000008 96#define MAS4_MD 0x00000004 97#define MAS4_GD 0x00000002 98#define MAS4_ED 0x00000001 99#define MAS4_WIMGED_MASK 0x0000001f /* Default WIMGE */ 100#define MAS4_WIMGED_SHIFT 0 101#define MAS4_VLED MAS4_X1D /* Default VLE */ 102#define MAS4_ACMD 0x000000c0 /* Default ACM */ 103#define MAS4_ACMD_SHIFT 6 104#define MAS4_TSIZED_MASK 0x00000f80 /* Default TSIZE */ 105#define MAS4_TSIZED_SHIFT 7 106 107#define MAS5_SGS 0x80000000 108 109#define MAS6_SPID0 0x3FFF0000 110#define MAS6_SPID1 0x00007FFE 111#define MAS6_ISIZE(x) MAS1_TSIZE(x) 112#define MAS6_SAS 0x00000001 113#define MAS6_SPID MAS6_SPID0 114#define MAS6_SIND 0x00000002 /* Indirect page */ 115#define MAS6_SIND_SHIFT 1 116#define MAS6_SPID_MASK 0x3fff0000 117#define MAS6_SPID_SHIFT 16 118#define MAS6_ISIZE_MASK 0x00000f80 119#define MAS6_ISIZE_SHIFT 7 120 121#define MAS7_RPN 0xFFFFFFFF 122 123#define MAS8_TGS 0x80000000 /* Guest space */ 124#define MAS8_VF 0x40000000 /* Virtualization Fault */ 125#define MAS8_TLPID 0x000000ff 126 127/* Bit definitions for MMUCFG */ 128#define MMUCFG_MAVN 0x00000003 /* MMU Architecture Version Number */ 129#define MMUCFG_MAVN_V1 0x00000000 /* v1.0 */ 130#define MMUCFG_MAVN_V2 0x00000001 /* v2.0 */ 131#define MMUCFG_NTLBS 0x0000000c /* Number of TLBs */ 132#define MMUCFG_PIDSIZE 0x000007c0 /* PID Reg Size */ 133#define MMUCFG_TWC 0x00008000 /* TLB Write Conditional (v2.0) */ 134#define MMUCFG_LRAT 0x00010000 /* LRAT Supported (v2.0) */ 135#define MMUCFG_RASIZE 0x00fe0000 /* Real Addr Size */ 136#define MMUCFG_LPIDSIZE 0x0f000000 /* LPID Reg Size */ 137 138/* Bit definitions for MMUCSR0 */ 139#define MMUCSR0_TLB1FI 0x00000002 /* TLB1 Flash invalidate */ 140#define MMUCSR0_TLB0FI 0x00000004 /* TLB0 Flash invalidate */ 141#define MMUCSR0_TLB2FI 0x00000040 /* TLB2 Flash invalidate */ 142#define MMUCSR0_TLB3FI 0x00000020 /* TLB3 Flash invalidate */ 143#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \ 144 MMUCSR0_TLB2FI | MMUCSR0_TLB3FI) 145#define MMUCSR0_TLB0PS 0x00000780 /* TLB0 Page Size */ 146#define MMUCSR0_TLB1PS 0x00007800 /* TLB1 Page Size */ 147#define MMUCSR0_TLB2PS 0x00078000 /* TLB2 Page Size */ 148#define MMUCSR0_TLB3PS 0x00780000 /* TLB3 Page Size */ 149 150/* MMUCFG bits */ 151#define MMUCFG_MAVN_NASK 0x00000003 152#define MMUCFG_MAVN_V1_0 0x00000000 153#define MMUCFG_MAVN_V2_0 0x00000001 154#define MMUCFG_NTLB_MASK 0x0000000c 155#define MMUCFG_NTLB_SHIFT 2 156#define MMUCFG_PIDSIZE_MASK 0x000007c0 157#define MMUCFG_PIDSIZE_SHIFT 6 158#define MMUCFG_TWC 0x00008000 159#define MMUCFG_LRAT 0x00010000 160#define MMUCFG_RASIZE_MASK 0x00fe0000 161#define MMUCFG_RASIZE_SHIFT 17 162#define MMUCFG_LPIDSIZE_MASK 0x0f000000 163#define MMUCFG_LPIDSIZE_SHIFT 24 164 165/* TLBnCFG encoding */ 166#define TLBnCFG_N_ENTRY 0x00000fff /* number of entries */ 167#define TLBnCFG_HES 0x00002000 /* HW select supported */ 168#define TLBnCFG_IPROT 0x00008000 /* IPROT supported */ 169#define TLBnCFG_GTWE 0x00010000 /* Guest can write */ 170#define TLBnCFG_IND 0x00020000 /* IND entries supported */ 171#define TLBnCFG_PT 0x00040000 /* Can load from page table */ 172#define TLBnCFG_MINSIZE 0x00f00000 /* Minimum Page Size (v1.0) */ 173#define TLBnCFG_MINSIZE_SHIFT 20 174#define TLBnCFG_MAXSIZE 0x000f0000 /* Maximum Page Size (v1.0) */ 175#define TLBnCFG_MAXSIZE_SHIFT 16 176#define TLBnCFG_ASSOC 0xff000000 /* Associativity */ 177#define TLBnCFG_ASSOC_SHIFT 24 178 179/* TLBnPS encoding */ 180#define TLBnPS_4K 0x00000004 181#define TLBnPS_8K 0x00000008 182#define TLBnPS_16K 0x00000010 183#define TLBnPS_32K 0x00000020 184#define TLBnPS_64K 0x00000040 185#define TLBnPS_128K 0x00000080 186#define TLBnPS_256K 0x00000100 187#define TLBnPS_512K 0x00000200 188#define TLBnPS_1M 0x00000400 189#define TLBnPS_2M 0x00000800 190#define TLBnPS_4M 0x00001000 191#define TLBnPS_8M 0x00002000 192#define TLBnPS_16M 0x00004000 193#define TLBnPS_32M 0x00008000 194#define TLBnPS_64M 0x00010000 195#define TLBnPS_128M 0x00020000 196#define TLBnPS_256M 0x00040000 197#define TLBnPS_512M 0x00080000 198#define TLBnPS_1G 0x00100000 199#define TLBnPS_2G 0x00200000 200#define TLBnPS_4G 0x00400000 201#define TLBnPS_8G 0x00800000 202#define TLBnPS_16G 0x01000000 203#define TLBnPS_32G 0x02000000 204#define TLBnPS_64G 0x04000000 205#define TLBnPS_128G 0x08000000 206#define TLBnPS_256G 0x10000000 207 208/* tlbilx action encoding */ 209#define TLBILX_T_ALL 0 210#define TLBILX_T_TID 1 211#define TLBILX_T_FULLMATCH 3 212#define TLBILX_T_CLASS0 4 213#define TLBILX_T_CLASS1 5 214#define TLBILX_T_CLASS2 6 215#define TLBILX_T_CLASS3 7 216 217#ifndef __ASSEMBLY__ 218#include <asm/bug.h> 219 220extern unsigned int tlbcam_index; 221 222typedef struct { 223 unsigned int id; 224 unsigned int active; 225 unsigned long vdso_base; 226#ifdef CONFIG_PPC_ICSWX 227 struct spinlock *cop_lockp; /* guard cop related stuff */ 228 unsigned long acop; /* mask of enabled coprocessor types */ 229#endif /* CONFIG_PPC_ICSWX */ 230#ifdef CONFIG_PPC_MM_SLICES 231 u64 low_slices_psize; /* SLB page size encodings */ 232 u64 high_slices_psize; /* 4 bits per slice for now */ 233 u16 user_psize; /* page size index */ 234#endif 235#ifdef CONFIG_PPC_64K_PAGES 236 /* for 4K PTE fragment support */ 237 void *pte_frag; 238#endif 239} mm_context_t; 240 241/* Page size definitions, common between 32 and 64-bit 242 * 243 * shift : is the "PAGE_SHIFT" value for that page size 244 * penc : is the pte encoding mask 245 * 246 */ 247struct mmu_psize_def 248{ 249 unsigned int shift; /* number of bits */ 250 unsigned int enc; /* PTE encoding */ 251 unsigned int ind; /* Corresponding indirect page size shift */ 252 unsigned int flags; 253#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */ 254#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */ 255}; 256extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT]; 257 258static inline int shift_to_mmu_psize(unsigned int shift) 259{ 260 int psize; 261 262 for (psize = 0; psize < MMU_PAGE_COUNT; ++psize) 263 if (mmu_psize_defs[psize].shift == shift) 264 return psize; 265 return -1; 266} 267 268static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize) 269{ 270 if (mmu_psize_defs[mmu_psize].shift) 271 return mmu_psize_defs[mmu_psize].shift; 272 BUG(); 273} 274 275/* The page sizes use the same names as 64-bit hash but are 276 * constants 277 */ 278#if defined(CONFIG_PPC_4K_PAGES) 279#define mmu_virtual_psize MMU_PAGE_4K 280#elif defined(CONFIG_PPC_64K_PAGES) 281#define mmu_virtual_psize MMU_PAGE_64K 282#else 283#error Unsupported page size 284#endif 285 286extern int mmu_linear_psize; 287extern int mmu_vmemmap_psize; 288 289#ifdef CONFIG_PPC64 290extern unsigned long linear_map_top; 291 292/* 293 * 64-bit booke platforms don't load the tlb in the tlb miss handler code. 294 * HUGETLB_NEED_PRELOAD handles this - it causes huge_ptep_set_access_flags to 295 * return 1, indicating that the tlb requires preloading. 296 */ 297#define HUGETLB_NEED_PRELOAD 298#endif 299 300#endif /* !__ASSEMBLY__ */ 301 302#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */ 303