diff options
Diffstat (limited to 'arch/parisc')
-rw-r--r-- | arch/parisc/kernel/entry.S | 40 |
1 files changed, 7 insertions, 33 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index 293ba44f40a3..6337adef30f6 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S | |||
@@ -364,32 +364,6 @@ | |||
364 | .align 32 | 364 | .align 32 |
365 | .endm | 365 | .endm |
366 | 366 | ||
367 | /* The following are simple 32 vs 64 bit instruction | ||
368 | * abstractions for the macros */ | ||
369 | .macro EXTR reg1,start,length,reg2 | ||
370 | #ifdef CONFIG_64BIT | ||
371 | extrd,u \reg1,32+(\start),\length,\reg2 | ||
372 | #else | ||
373 | extrw,u \reg1,\start,\length,\reg2 | ||
374 | #endif | ||
375 | .endm | ||
376 | |||
377 | .macro DEP reg1,start,length,reg2 | ||
378 | #ifdef CONFIG_64BIT | ||
379 | depd \reg1,32+(\start),\length,\reg2 | ||
380 | #else | ||
381 | depw \reg1,\start,\length,\reg2 | ||
382 | #endif | ||
383 | .endm | ||
384 | |||
385 | .macro DEPI val,start,length,reg | ||
386 | #ifdef CONFIG_64BIT | ||
387 | depdi \val,32+(\start),\length,\reg | ||
388 | #else | ||
389 | depwi \val,\start,\length,\reg | ||
390 | #endif | ||
391 | .endm | ||
392 | |||
393 | /* In LP64, the space contains part of the upper 32 bits of the | 367 | /* In LP64, the space contains part of the upper 32 bits of the |
394 | * fault. We have to extract this and place it in the va, | 368 | * fault. We have to extract this and place it in the va, |
395 | * zeroing the corresponding bits in the space register */ | 369 | * zeroing the corresponding bits in the space register */ |
@@ -442,19 +416,19 @@ | |||
442 | */ | 416 | */ |
443 | .macro L2_ptep pmd,pte,index,va,fault | 417 | .macro L2_ptep pmd,pte,index,va,fault |
444 | #if PT_NLEVELS == 3 | 418 | #if PT_NLEVELS == 3 |
445 | EXTR \va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index | 419 | extru \va,31-ASM_PMD_SHIFT,ASM_BITS_PER_PMD,\index |
446 | #else | 420 | #else |
447 | EXTR \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index | 421 | extru \va,31-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index |
448 | #endif | 422 | #endif |
449 | DEP %r0,31,PAGE_SHIFT,\pmd /* clear offset */ | 423 | dep %r0,31,PAGE_SHIFT,\pmd /* clear offset */ |
450 | copy %r0,\pte | 424 | copy %r0,\pte |
451 | ldw,s \index(\pmd),\pmd | 425 | ldw,s \index(\pmd),\pmd |
452 | bb,>=,n \pmd,_PxD_PRESENT_BIT,\fault | 426 | bb,>=,n \pmd,_PxD_PRESENT_BIT,\fault |
453 | DEP %r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */ | 427 | dep %r0,31,PxD_FLAG_SHIFT,\pmd /* clear flags */ |
454 | copy \pmd,%r9 | 428 | copy \pmd,%r9 |
455 | SHLREG %r9,PxD_VALUE_SHIFT,\pmd | 429 | SHLREG %r9,PxD_VALUE_SHIFT,\pmd |
456 | EXTR \va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index | 430 | extru \va,31-PAGE_SHIFT,ASM_BITS_PER_PTE,\index |
457 | DEP %r0,31,PAGE_SHIFT,\pmd /* clear offset */ | 431 | dep %r0,31,PAGE_SHIFT,\pmd /* clear offset */ |
458 | shladd \index,BITS_PER_PTE_ENTRY,\pmd,\pmd | 432 | shladd \index,BITS_PER_PTE_ENTRY,\pmd,\pmd |
459 | LDREG %r0(\pmd),\pte /* pmd is now pte */ | 433 | LDREG %r0(\pmd),\pte /* pmd is now pte */ |
460 | bb,>=,n \pte,_PAGE_PRESENT_BIT,\fault | 434 | bb,>=,n \pte,_PAGE_PRESENT_BIT,\fault |
@@ -605,7 +579,7 @@ | |||
605 | depdi 0,31,32,\tmp | 579 | depdi 0,31,32,\tmp |
606 | #endif | 580 | #endif |
607 | copy \va,\tmp1 | 581 | copy \va,\tmp1 |
608 | DEPI 0,31,23,\tmp1 | 582 | depi 0,31,23,\tmp1 |
609 | cmpb,COND(<>),n \tmp,\tmp1,\fault | 583 | cmpb,COND(<>),n \tmp,\tmp1,\fault |
610 | ldi (_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot | 584 | ldi (_PAGE_DIRTY|_PAGE_WRITE|_PAGE_READ),\prot |
611 | depd,z \prot,8,7,\prot | 585 | depd,z \prot,8,7,\prot |