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