arch/mips/include/asm/r4kcache.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Inline assembly cache operations.
   7  *
   8  * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
   9  * Copyright (C) 1997 - 2002 Ralf Baechle (ralf@gnu.org)
  10  * Copyright (C) 2004 Ralf Baechle (ralf@linux-mips.org)
  11  */
  12 #ifndef _ASM_R4KCACHE_H
  13 #define _ASM_R4KCACHE_H
  14
  15 #include <asm/asm.h>
  16 #include <asm/cacheops.h>
  17 #include <asm/cpu-features.h>
  18 #include <asm/cpu-type.h>
  19 #include <asm/mipsmtregs.h>
  20 #include <asm/uaccess.h> /* for segment_eq() */
  21
  22 extern void (*r4k_blast_dcache)(void);
  23 extern void (*r4k_blast_icache)(void);
  24
  25 /*
  26  * This macro return a properly sign-extended address suitable as base address
  27  * for indexed cache operations.  Two issues here:
  28  *
  29  *  - The MIPS32 and MIPS64 specs permit an implementation to directly derive
  30  *    the index bits from the virtual address.  This breaks with tradition
  31  *    set by the R4000.  To keep unpleasant surprises from happening we pick
  32  *    an address in KSEG0 / CKSEG0.
  33  *  - We need a properly sign extended address for 64-bit code.  To get away
  34  *    without ifdefs we let the compiler do it by a type cast.
  35  */
  36 #define INDEX_BASE      CKSEG0
  37
  38 #define cache_op(op,addr)                                               \
  39         __asm__ __volatile__(                                           \
  40         "       .set    push                                    \n"     \
  41         "       .set    noreorder                               \n"     \
  42         "       .set    arch=r4000                              \n"     \
  43         "       cache   %0, %1                                  \n"     \
  44         "       .set    pop                                     \n"     \
  45         :                                                               \
  46         : "i" (op), "R" (*(unsigned char *)(addr)))
  47
  48 #ifdef CONFIG_MIPS_MT
  49
  50 /*
  51  * Optionally force single-threaded execution during I-cache flushes.
  52  */
  53 #define PROTECT_CACHE_FLUSHES 1
  54
  55 #ifdef PROTECT_CACHE_FLUSHES
  56
  57 extern int mt_protiflush;
  58 extern int mt_protdflush;
  59 extern void mt_cflush_lockdown(void);
  60 extern void mt_cflush_release(void);
  61
  62 #define BEGIN_MT_IPROT \
  63         unsigned long flags = 0;                        \
  64         unsigned long mtflags = 0;                      \
  65         if(mt_protiflush) {                             \
  66                 local_irq_save(flags);                  \
  67                 ehb();                                  \
  68                 mtflags = dvpe();                       \
  69                 mt_cflush_lockdown();                   \
  70         }
  71
  72 #define END_MT_IPROT \
  73         if(mt_protiflush) {                             \
  74                 mt_cflush_release();                    \
  75                 evpe(mtflags);                          \
  76                 local_irq_restore(flags);               \
  77         }
  78
  79 #define BEGIN_MT_DPROT \
  80         unsigned long flags = 0;                        \
  81         unsigned long mtflags = 0;                      \
  82         if(mt_protdflush) {                             \
  83                 local_irq_save(flags);                  \
  84                 ehb();                                  \
  85                 mtflags = dvpe();                       \
  86                 mt_cflush_lockdown();                   \
  87         }
  88
  89 #define END_MT_DPROT \
  90         if(mt_protdflush) {                             \
  91                 mt_cflush_release();                    \
  92                 evpe(mtflags);                          \
  93                 local_irq_restore(flags);               \
  94         }
  95
  96 #else
  97
  98 #define BEGIN_MT_IPROT
  99 #define BEGIN_MT_DPROT
 100 #define END_MT_IPROT
 101 #define END_MT_DPROT
 102
 103 #endif /* PROTECT_CACHE_FLUSHES */
 104
 105 #define __iflush_prologue                                               \
 106         unsigned long redundance;                                       \
 107         extern int mt_n_iflushes;                                       \
 108         BEGIN_MT_IPROT                                                  \
 109         for (redundance = 0; redundance < mt_n_iflushes; redundance++) {
 110
 111 #define __iflush_epilogue                                               \
 112         END_MT_IPROT                                                    \
 113         }
 114
 115 #define __dflush_prologue                                               \
 116         unsigned long redundance;                                       \
 117         extern int mt_n_dflushes;                                       \
 118         BEGIN_MT_DPROT                                                  \
 119         for (redundance = 0; redundance < mt_n_dflushes; redundance++) {
 120
 121 #define __dflush_epilogue \
 122         END_MT_DPROT     \
 123         }
 124
 125 #define __inv_dflush_prologue __dflush_prologue
 126 #define __inv_dflush_epilogue __dflush_epilogue
 127 #define __sflush_prologue {
 128 #define __sflush_epilogue }
 129 #define __inv_sflush_prologue __sflush_prologue
 130 #define __inv_sflush_epilogue __sflush_epilogue
 131
 132 #else /* CONFIG_MIPS_MT */
 133
 134 #define __iflush_prologue {
 135 #define __iflush_epilogue }
 136 #define __dflush_prologue {
 137 #define __dflush_epilogue }
 138 #define __inv_dflush_prologue {
 139 #define __inv_dflush_epilogue }
 140 #define __sflush_prologue {
 141 #define __sflush_epilogue }
 142 #define __inv_sflush_prologue {
 143 #define __inv_sflush_epilogue }
 144
 145 #endif /* CONFIG_MIPS_MT */
 146
 147 static inline void flush_icache_line_indexed(unsigned long addr)
 148 {
 149         __iflush_prologue
 150         cache_op(Index_Invalidate_I, addr);
 151         __iflush_epilogue
 152 }
 153
 154 static inline void flush_dcache_line_indexed(unsigned long addr)
 155 {
 156         __dflush_prologue
 157         cache_op(Index_Writeback_Inv_D, addr);
 158         __dflush_epilogue
 159 }
 160
 161 static inline void flush_scache_line_indexed(unsigned long addr)
 162 {
 163         cache_op(Index_Writeback_Inv_SD, addr);
 164 }
 165
 166 static inline void flush_icache_line(unsigned long addr)
 167 {
 168         __iflush_prologue
 169         switch (boot_cpu_type()) {
 170         case CPU_LOONGSON2:
 171                 cache_op(Hit_Invalidate_I_Loongson2, addr);
 172                 break;
 173
 174         default:
 175                 cache_op(Hit_Invalidate_I, addr);
 176                 break;
 177         }
 178         __iflush_epilogue
 179 }
 180
 181 static inline void flush_dcache_line(unsigned long addr)
 182 {
 183         __dflush_prologue
 184         cache_op(Hit_Writeback_Inv_D, addr);
 185         __dflush_epilogue
 186 }
 187
 188 static inline void invalidate_dcache_line(unsigned long addr)
 189 {
 190         __dflush_prologue
 191         cache_op(Hit_Invalidate_D, addr);
 192         __dflush_epilogue
 193 }
 194
 195 static inline void invalidate_scache_line(unsigned long addr)
 196 {
 197         cache_op(Hit_Invalidate_SD, addr);
 198 }
 199
 200 static inline void flush_scache_line(unsigned long addr)
 201 {
 202         cache_op(Hit_Writeback_Inv_SD, addr);
 203 }
 204
 205 #define protected_cache_op(op,addr)                             \
 206         __asm__ __volatile__(                                   \
 207         "       .set    push                    \n"             \
 208         "       .set    noreorder               \n"             \
 209         "       .set    arch=r4000              \n"             \
 210         "1:     cache   %0, (%1)                \n"             \
 211         "2:     .set    pop                     \n"             \
 212         "       .section __ex_table,\"a\"       \n"             \
 213         "       "STR(PTR)" 1b, 2b               \n"             \
 214         "       .previous"                                      \
 215         :                                                       \
 216         : "i" (op), "r" (addr))
 217
 218 #define protected_cachee_op(op,addr)                            \
 219         __asm__ __volatile__(                                   \
 220         "       .set    push                    \n"             \
 221         "       .set    noreorder               \n"             \
 222         "       .set    mips0                   \n"             \
 223         "       .set    eva                     \n"             \
 224         "1:     cachee  %0, (%1)                \n"             \
 225         "2:     .set    pop                     \n"             \
 226         "       .section __ex_table,\"a\"       \n"             \
 227         "       "STR(PTR)" 1b, 2b               \n"             \
 228         "       .previous"                                      \
 229         :                                                       \
 230         : "i" (op), "r" (addr))
 231
 232 /*
 233  * The next two are for badland addresses like signal trampolines.
 234  */
 235 static inline void protected_flush_icache_line(unsigned long addr)
 236 {
 237         switch (boot_cpu_type()) {
 238         case CPU_LOONGSON2:
 239                 protected_cache_op(Hit_Invalidate_I_Loongson2, addr);
 240                 break;
 241
 242         default:
 243 #ifdef CONFIG_EVA
 244                 protected_cachee_op(Hit_Invalidate_I, addr);
 245 #else
 246                 protected_cache_op(Hit_Invalidate_I, addr);
 247 #endif
 248                 break;
 249         }
 250 }
 251
 252 /*
 253  * R10000 / R12000 hazard - these processors don't support the Hit_Writeback_D
 254  * cacheop so we use Hit_Writeback_Inv_D which is supported by all R4000-style
 255  * caches.  We're talking about one cacheline unnecessarily getting invalidated
 256  * here so the penalty isn't overly hard.
 257  */
 258 static inline void protected_writeback_dcache_line(unsigned long addr)
 259 {
 260 #ifdef CONFIG_EVA
 261         protected_cachee_op(Hit_Writeback_Inv_D, addr);
 262 #else
 263         protected_cache_op(Hit_Writeback_Inv_D, addr);
 264 #endif
 265 }
 266
 267 static inline void protected_writeback_scache_line(unsigned long addr)
 268 {
 269         protected_cache_op(Hit_Writeback_Inv_SD, addr);
 270 }
 271
 272 /*
 273  * This one is RM7000-specific
 274  */
 275 static inline void invalidate_tcache_page(unsigned long addr)
 276 {
 277         cache_op(Page_Invalidate_T, addr);
 278 }
 279
 280 #define cache16_unroll32(base,op)                                       \
 281         __asm__ __volatile__(                                           \
 282         "       .set push                                       \n"     \
 283         "       .set noreorder                                  \n"     \
 284         "       .set mips3                                      \n"     \
 285         "       cache %1, 0x000(%0); cache %1, 0x010(%0)        \n"     \
 286         "       cache %1, 0x020(%0); cache %1, 0x030(%0)        \n"     \
 287         "       cache %1, 0x040(%0); cache %1, 0x050(%0)        \n"     \
 288         "       cache %1, 0x060(%0); cache %1, 0x070(%0)        \n"     \
 289         "       cache %1, 0x080(%0); cache %1, 0x090(%0)        \n"     \
 290         "       cache %1, 0x0a0(%0); cache %1, 0x0b0(%0)        \n"     \
 291         "       cache %1, 0x0c0(%0); cache %1, 0x0d0(%0)        \n"     \
 292         "       cache %1, 0x0e0(%0); cache %1, 0x0f0(%0)        \n"     \
 293         "       cache %1, 0x100(%0); cache %1, 0x110(%0)        \n"     \
 294         "       cache %1, 0x120(%0); cache %1, 0x130(%0)        \n"     \
 295         "       cache %1, 0x140(%0); cache %1, 0x150(%0)        \n"     \
 296         "       cache %1, 0x160(%0); cache %1, 0x170(%0)        \n"     \
 297         "       cache %1, 0x180(%0); cache %1, 0x190(%0)        \n"     \
 298         "       cache %1, 0x1a0(%0); cache %1, 0x1b0(%0)        \n"     \
 299         "       cache %1, 0x1c0(%0); cache %1, 0x1d0(%0)        \n"     \
 300         "       cache %1, 0x1e0(%0); cache %1, 0x1f0(%0)        \n"     \
 301         "       .set pop                                        \n"     \
 302                 :                                                       \
 303                 : "r" (base),                                           \
 304                   "i" (op));
 305
 306 #define cache32_unroll32(base,op)                                       \
 307         __asm__ __volatile__(                                           \
 308         "       .set push                                       \n"     \
 309         "       .set noreorder                                  \n"     \
 310         "       .set mips3                                      \n"     \
 311         "       cache %1, 0x000(%0); cache %1, 0x020(%0)        \n"     \
 312         "       cache %1, 0x040(%0); cache %1, 0x060(%0)        \n"     \
 313         "       cache %1, 0x080(%0); cache %1, 0x0a0(%0)        \n"     \
 314         "       cache %1, 0x0c0(%0); cache %1, 0x0e0(%0)        \n"     \
 315         "       cache %1, 0x100(%0); cache %1, 0x120(%0)        \n"     \
 316         "       cache %1, 0x140(%0); cache %1, 0x160(%0)        \n"     \
 317         "       cache %1, 0x180(%0); cache %1, 0x1a0(%0)        \n"     \
 318         "       cache %1, 0x1c0(%0); cache %1, 0x1e0(%0)        \n"     \
 319         "       cache %1, 0x200(%0); cache %1, 0x220(%0)        \n"     \
 320         "       cache %1, 0x240(%0); cache %1, 0x260(%0)        \n"     \
 321         "       cache %1, 0x280(%0); cache %1, 0x2a0(%0)        \n"     \
 322         "       cache %1, 0x2c0(%0); cache %1, 0x2e0(%0)        \n"     \
 323         "       cache %1, 0x300(%0); cache %1, 0x320(%0)        \n"     \
 324         "       cache %1, 0x340(%0); cache %1, 0x360(%0)        \n"     \
 325         "       cache %1, 0x380(%0); cache %1, 0x3a0(%0)        \n"     \
 326         "       cache %1, 0x3c0(%0); cache %1, 0x3e0(%0)        \n"     \
 327         "       .set pop                                        \n"     \
 328                 :                                                       \
 329                 : "r" (base),                                           \
 330                   "i" (op));
 331
 332 #define cache64_unroll32(base,op)                                       \
 333         __asm__ __volatile__(                                           \
 334         "       .set push                                       \n"     \
 335         "       .set noreorder                                  \n"     \
 336         "       .set mips3                                      \n"     \
 337         "       cache %1, 0x000(%0); cache %1, 0x040(%0)        \n"     \
 338         "       cache %1, 0x080(%0); cache %1, 0x0c0(%0)        \n"     \
 339         "       cache %1, 0x100(%0); cache %1, 0x140(%0)        \n"     \
 340         "       cache %1, 0x180(%0); cache %1, 0x1c0(%0)        \n"     \
 341         "       cache %1, 0x200(%0); cache %1, 0x240(%0)        \n"     \
 342         "       cache %1, 0x280(%0); cache %1, 0x2c0(%0)        \n"     \
 343         "       cache %1, 0x300(%0); cache %1, 0x340(%0)        \n"     \
 344         "       cache %1, 0x380(%0); cache %1, 0x3c0(%0)        \n"     \
 345         "       cache %1, 0x400(%0); cache %1, 0x440(%0)        \n"     \
 346         "       cache %1, 0x480(%0); cache %1, 0x4c0(%0)        \n"     \
 347         "       cache %1, 0x500(%0); cache %1, 0x540(%0)        \n"     \
 348         "       cache %1, 0x580(%0); cache %1, 0x5c0(%0)        \n"     \
 349         "       cache %1, 0x600(%0); cache %1, 0x640(%0)        \n"     \
 350         "       cache %1, 0x680(%0); cache %1, 0x6c0(%0)        \n"     \
 351         "       cache %1, 0x700(%0); cache %1, 0x740(%0)        \n"     \
 352         "       cache %1, 0x780(%0); cache %1, 0x7c0(%0)        \n"     \
 353         "       .set pop                                        \n"     \
 354                 :                                                       \
 355                 : "r" (base),                                           \
 356                   "i" (op));
 357
 358 #define cache128_unroll32(base,op)                                      \
 359         __asm__ __volatile__(                                           \
 360         "       .set push                                       \n"     \
 361         "       .set noreorder                                  \n"     \
 362         "       .set mips3                                      \n"     \
 363         "       cache %1, 0x000(%0); cache %1, 0x080(%0)        \n"     \
 364         "       cache %1, 0x100(%0); cache %1, 0x180(%0)        \n"     \
 365         "       cache %1, 0x200(%0); cache %1, 0x280(%0)        \n"     \
 366         "       cache %1, 0x300(%0); cache %1, 0x380(%0)        \n"     \
 367         "       cache %1, 0x400(%0); cache %1, 0x480(%0)        \n"     \
 368         "       cache %1, 0x500(%0); cache %1, 0x580(%0)        \n"     \
 369         "       cache %1, 0x600(%0); cache %1, 0x680(%0)        \n"     \
 370         "       cache %1, 0x700(%0); cache %1, 0x780(%0)        \n"     \
 371         "       cache %1, 0x800(%0); cache %1, 0x880(%0)        \n"     \
 372         "       cache %1, 0x900(%0); cache %1, 0x980(%0)        \n"     \
 373         "       cache %1, 0xa00(%0); cache %1, 0xa80(%0)        \n"     \
 374         "       cache %1, 0xb00(%0); cache %1, 0xb80(%0)        \n"     \
 375         "       cache %1, 0xc00(%0); cache %1, 0xc80(%0)        \n"     \
 376         "       cache %1, 0xd00(%0); cache %1, 0xd80(%0)        \n"     \
 377         "       cache %1, 0xe00(%0); cache %1, 0xe80(%0)        \n"     \
 378         "       cache %1, 0xf00(%0); cache %1, 0xf80(%0)        \n"     \
 379         "       .set pop                                        \n"     \
 380                 :                                                       \
 381                 : "r" (base),                                           \
 382                   "i" (op));
 383
 384 /*
 385  * Perform the cache operation specified by op using a user mode virtual
 386  * address while in kernel mode.
 387  */
 388 #define cache16_unroll32_user(base,op)                                  \
 389         __asm__ __volatile__(                                           \
 390         "       .set push                                       \n"     \
 391         "       .set noreorder                                  \n"     \
 392         "       .set mips0                                      \n"     \
 393         "       .set eva                                        \n"     \
 394         "       cachee %1, 0x000(%0); cachee %1, 0x010(%0)      \n"     \
 395         "       cachee %1, 0x020(%0); cachee %1, 0x030(%0)      \n"     \
 396         "       cachee %1, 0x040(%0); cachee %1, 0x050(%0)      \n"     \
 397         "       cachee %1, 0x060(%0); cachee %1, 0x070(%0)      \n"     \
 398         "       cachee %1, 0x080(%0); cachee %1, 0x090(%0)      \n"     \
 399         "       cachee %1, 0x0a0(%0); cachee %1, 0x0b0(%0)      \n"     \
 400         "       cachee %1, 0x0c0(%0); cachee %1, 0x0d0(%0)      \n"     \
 401         "       cachee %1, 0x0e0(%0); cachee %1, 0x0f0(%0)      \n"     \
 402         "       cachee %1, 0x100(%0); cachee %1, 0x110(%0)      \n"     \
 403         "       cachee %1, 0x120(%0); cachee %1, 0x130(%0)      \n"     \
 404         "       cachee %1, 0x140(%0); cachee %1, 0x150(%0)      \n"     \
 405         "       cachee %1, 0x160(%0); cachee %1, 0x170(%0)      \n"     \
 406         "       cachee %1, 0x180(%0); cachee %1, 0x190(%0)      \n"     \
 407         "       cachee %1, 0x1a0(%0); cachee %1, 0x1b0(%0)      \n"     \
 408         "       cachee %1, 0x1c0(%0); cachee %1, 0x1d0(%0)      \n"     \
 409         "       cachee %1, 0x1e0(%0); cachee %1, 0x1f0(%0)      \n"     \
 410         "       .set pop                                        \n"     \
 411                 :                                                       \
 412                 : "r" (base),                                           \
 413                   "i" (op));
 414
 415 #define cache32_unroll32_user(base, op)                                 \
 416         __asm__ __volatile__(                                           \
 417         "       .set push                                       \n"     \
 418         "       .set noreorder                                  \n"     \
 419         "       .set mips0                                      \n"     \
 420         "       .set eva                                        \n"     \
 421         "       cachee %1, 0x000(%0); cachee %1, 0x020(%0)      \n"     \
 422         "       cachee %1, 0x040(%0); cachee %1, 0x060(%0)      \n"     \
 423         "       cachee %1, 0x080(%0); cachee %1, 0x0a0(%0)      \n"     \
 424         "       cachee %1, 0x0c0(%0); cachee %1, 0x0e0(%0)      \n"     \
 425         "       cachee %1, 0x100(%0); cachee %1, 0x120(%0)      \n"     \
 426         "       cachee %1, 0x140(%0); cachee %1, 0x160(%0)      \n"     \
 427         "       cachee %1, 0x180(%0); cachee %1, 0x1a0(%0)      \n"     \
 428         "       cachee %1, 0x1c0(%0); cachee %1, 0x1e0(%0)      \n"     \
 429         "       cachee %1, 0x200(%0); cachee %1, 0x220(%0)      \n"     \
 430         "       cachee %1, 0x240(%0); cachee %1, 0x260(%0)      \n"     \
 431         "       cachee %1, 0x280(%0); cachee %1, 0x2a0(%0)      \n"     \
 432         "       cachee %1, 0x2c0(%0); cachee %1, 0x2e0(%0)      \n"     \
 433         "       cachee %1, 0x300(%0); cachee %1, 0x320(%0)      \n"     \
 434         "       cachee %1, 0x340(%0); cachee %1, 0x360(%0)      \n"     \
 435         "       cachee %1, 0x380(%0); cachee %1, 0x3a0(%0)      \n"     \
 436         "       cachee %1, 0x3c0(%0); cachee %1, 0x3e0(%0)      \n"     \
 437         "       .set pop                                        \n"     \
 438                 :                                                       \
 439                 : "r" (base),                                           \
 440                   "i" (op));
 441
 442 #define cache64_unroll32_user(base, op)                                 \
 443         __asm__ __volatile__(                                           \
 444         "       .set push                                       \n"     \
 445         "       .set noreorder                                  \n"     \
 446         "       .set mips0                                      \n"     \
 447         "       .set eva                                        \n"     \
 448         "       cachee %1, 0x000(%0); cachee %1, 0x040(%0)      \n"     \
 449         "       cachee %1, 0x080(%0); cachee %1, 0x0c0(%0)      \n"     \
 450         "       cachee %1, 0x100(%0); cachee %1, 0x140(%0)      \n"     \
 451         "       cachee %1, 0x180(%0); cachee %1, 0x1c0(%0)      \n"     \
 452         "       cachee %1, 0x200(%0); cachee %1, 0x240(%0)      \n"     \
 453         "       cachee %1, 0x280(%0); cachee %1, 0x2c0(%0)      \n"     \
 454         "       cachee %1, 0x300(%0); cachee %1, 0x340(%0)      \n"     \
 455         "       cachee %1, 0x380(%0); cachee %1, 0x3c0(%0)      \n"     \
 456         "       cachee %1, 0x400(%0); cachee %1, 0x440(%0)      \n"     \
 457         "       cachee %1, 0x480(%0); cachee %1, 0x4c0(%0)      \n"     \
 458         "       cachee %1, 0x500(%0); cachee %1, 0x540(%0)      \n"     \
 459         "       cachee %1, 0x580(%0); cachee %1, 0x5c0(%0)      \n"     \
 460         "       cachee %1, 0x600(%0); cachee %1, 0x640(%0)      \n"     \
 461         "       cachee %1, 0x680(%0); cachee %1, 0x6c0(%0)      \n"     \
 462         "       cachee %1, 0x700(%0); cachee %1, 0x740(%0)      \n"     \
 463         "       cachee %1, 0x780(%0); cachee %1, 0x7c0(%0)      \n"     \
 464         "       .set pop                                        \n"     \
 465                 :                                                       \
 466                 : "r" (base),                                           \
 467                   "i" (op));
 468
 469 /* build blast_xxx, blast_xxx_page, blast_xxx_page_indexed */
 470 #define __BUILD_BLAST_CACHE(pfx, desc, indexop, hitop, lsize, extra)    \
 471 static inline void extra##blast_##pfx##cache##lsize(void)               \
 472 {                                                                       \
 473         unsigned long start = INDEX_BASE;                               \
 474         unsigned long end = start + current_cpu_data.desc.waysize;      \
 475         unsigned long ws_inc = 1UL << current_cpu_data.desc.waybit;     \
 476         unsigned long ws_end = current_cpu_data.desc.ways <<            \
 477                                current_cpu_data.desc.waybit;            \
 478         unsigned long ws, addr;                                         \
 479                                                                         \
 480         __##pfx##flush_prologue                                         \
 481                                                                         \
 482         for (ws = 0; ws < ws_end; ws += ws_inc)                         \
 483                 for (addr = start; addr < end; addr += lsize * 32)      \
 484                         cache##lsize##_unroll32(addr|ws, indexop);      \
 485                                                                         \
 486         __##pfx##flush_epilogue                                         \
 487 }                                                                       \
 488                                                                         \
 489 static inline void extra##blast_##pfx##cache##lsize##_page(unsigned long page) \
 490 {                                                                       \
 491         unsigned long start = page;                                     \
 492         unsigned long end = page + PAGE_SIZE;                           \
 493                                                                         \
 494         __##pfx##flush_prologue                                         \
 495                                                                         \
 496         do {                                                            \
 497                 cache##lsize##_unroll32(start, hitop);                  \
 498                 start += lsize * 32;                                    \
 499         } while (start < end);                                          \
 500                                                                         \
 501         __##pfx##flush_epilogue                                         \
 502 }                                                                       \
 503                                                                         \
 504 static inline void extra##blast_##pfx##cache##lsize##_page_indexed(unsigned long page) \
 505 {                                                                       \
 506         unsigned long indexmask = current_cpu_data.desc.waysize - 1;    \
 507         unsigned long start = INDEX_BASE + (page & indexmask);          \
 508         unsigned long end = start + PAGE_SIZE;                          \
 509         unsigned long ws_inc = 1UL << current_cpu_data.desc.waybit;     \
 510         unsigned long ws_end = current_cpu_data.desc.ways <<            \
 511                                current_cpu_data.desc.waybit;            \
 512         unsigned long ws, addr;                                         \
 513                                                                         \
 514         __##pfx##flush_prologue                                         \
 515                                                                         \
 516         for (ws = 0; ws < ws_end; ws += ws_inc)                         \
 517                 for (addr = start; addr < end; addr += lsize * 32)      \
 518                         cache##lsize##_unroll32(addr|ws, indexop);      \
 519                                                                         \
 520         __##pfx##flush_epilogue                                         \
 521 }
 522
 523 __BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 16, )
 524 __BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16, )
 525 __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 16, )
 526 __BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 32, )
 527 __BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32, )
 528 __BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I_Loongson2, 32, loongson2_)
 529 __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 32, )
 530 __BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 64, )
 531 __BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64, )
 532 __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 64, )
 533 __BUILD_BLAST_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D, 128, )
 534 __BUILD_BLAST_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 128, )
 535 __BUILD_BLAST_CACHE(s, scache, Index_Writeback_Inv_SD, Hit_Writeback_Inv_SD, 128, )
 536
 537 __BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 16, )
 538 __BUILD_BLAST_CACHE(inv_d, dcache, Index_Writeback_Inv_D, Hit_Invalidate_D, 32, )
 539 __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 16, )
 540 __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 32, )
 541 __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64, )
 542 __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128, )
 543
 544 #define __BUILD_BLAST_USER_CACHE(pfx, desc, indexop, hitop, lsize) \
 545 static inline void blast_##pfx##cache##lsize##_user_page(unsigned long page) \
 546 {                                                                       \
 547         unsigned long start = page;                                     \
 548         unsigned long end = page + PAGE_SIZE;                           \
 549                                                                         \
 550         __##pfx##flush_prologue                                         \
 551                                                                         \
 552         do {                                                            \
 553                 cache##lsize##_unroll32_user(start, hitop);             \
 554                 start += lsize * 32;                                    \
 555         } while (start < end);                                          \
 556                                                                         \
 557         __##pfx##flush_epilogue                                         \
 558 }
 559
 560 __BUILD_BLAST_USER_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D,
 561                          16)
 562 __BUILD_BLAST_USER_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 16)
 563 __BUILD_BLAST_USER_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D,
 564                          32)
 565 __BUILD_BLAST_USER_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 32)
 566 __BUILD_BLAST_USER_CACHE(d, dcache, Index_Writeback_Inv_D, Hit_Writeback_Inv_D,
 567                          64)
 568 __BUILD_BLAST_USER_CACHE(i, icache, Index_Invalidate_I, Hit_Invalidate_I, 64)
 569
 570 /* build blast_xxx_range, protected_blast_xxx_range */
 571 #define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, extra)        \
 572 static inline void prot##extra##blast_##pfx##cache##_range(unsigned long start, \
 573                                                     unsigned long end)  \
 574 {                                                                       \
 575         unsigned long lsize = cpu_##desc##_line_size();                 \
 576         unsigned long addr = start & ~(lsize - 1);                      \
 577         unsigned long aend = (end - 1) & ~(lsize - 1);                  \
 578                                                                         \
 579         __##pfx##flush_prologue                                         \
 580                                                                         \
 581         while (1) {                                                     \
 582                 prot##cache_op(hitop, addr);                            \
 583                 if (addr == aend)                                       \
 584                         break;                                          \
 585                 addr += lsize;                                          \
 586         }                                                               \
 587                                                                         \
 588         __##pfx##flush_epilogue                                         \
 589 }
 590
 591 #ifndef CONFIG_EVA
 592
 593 __BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, )
 594 __BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_, )
 595
 596 #else
 597
 598 #define __BUILD_PROT_BLAST_CACHE_RANGE(pfx, desc, hitop)                \
 599 static inline void protected_blast_##pfx##cache##_range(unsigned long start,\
 600                                                         unsigned long end) \
 601 {                                                                       \
 602         unsigned long lsize = cpu_##desc##_line_size();                 \
 603         unsigned long addr = start & ~(lsize - 1);                      \
 604         unsigned long aend = (end - 1) & ~(lsize - 1);                  \
 605                                                                         \
 606         __##pfx##flush_prologue                                         \
 607                                                                         \
 608         if (segment_eq(get_fs(), USER_DS)) {                            \
 609                 while (1) {                                             \
 610                         protected_cachee_op(hitop, addr);               \
 611                         if (addr == aend)                               \
 612                                 break;                                  \
 613                         addr += lsize;                                  \
 614                 }                                                       \
 615         } else {                                                        \
 616                 while (1) {                                             \
 617                         protected_cache_op(hitop, addr);                \
 618                         if (addr == aend)                               \
 619                                 break;                                  \
 620                         addr += lsize;                                  \
 621                 }                                                       \
 622                                                                         \
 623         }                                                               \
 624         __##pfx##flush_epilogue                                         \
 625 }
 626
 627 __BUILD_PROT_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D)
 628 __BUILD_PROT_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I)
 629
 630 #endif
 631 __BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, )
 632 __BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I_Loongson2, \
 633         protected_, loongson2_)
 634 __BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, , )
 635 __BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, , )
 636 __BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, , )
 637 /* blast_inv_dcache_range */
 638 __BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, , )
 639 __BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD, , )
 640
 641 #endif /* _ASM_R4KCACHE_H */