diff options
Diffstat (limited to 'arch/parisc/kernel/pacache.S')
| -rw-r--r-- | arch/parisc/kernel/pacache.S | 245 |
1 files changed, 109 insertions, 136 deletions
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S index 09b77b2553c6..a85823668cba 100644 --- a/arch/parisc/kernel/pacache.S +++ b/arch/parisc/kernel/pacache.S @@ -608,93 +608,131 @@ ENTRY(__clear_user_page_asm) .procend ENDPROC(__clear_user_page_asm) -ENTRY(flush_kernel_dcache_page_asm) +ENTRY(flush_dcache_page_asm) .proc .callinfo NO_CALLS .entry + ldil L%(TMPALIAS_MAP_START), %r28 +#ifdef CONFIG_64BIT +#if (TMPALIAS_MAP_START >= 0x80000000) + depdi 0, 31,32, %r28 /* clear any sign extension */ + /* FIXME: page size dependend */ +#endif + extrd,u %r26, 56,32, %r26 /* convert phys addr to tlb insert format */ + depd %r25, 63,22, %r28 /* Form aliased virtual address 'to' */ + depdi 0, 63,12, %r28 /* Clear any offset bits */ +#else + extrw,u %r26, 24,25, %r26 /* convert phys addr to tlb insert format */ + depw %r25, 31,22, %r28 /* Form aliased virtual address 'to' */ + depwi 0, 31,12, %r28 /* Clear any offset bits */ +#endif + + /* Purge any old translation */ + + pdtlb 0(%r28) + ldil L%dcache_stride, %r1 - ldw R%dcache_stride(%r1), %r23 + ldw R%dcache_stride(%r1), %r1 #ifdef CONFIG_64BIT depdi,z 1, 63-PAGE_SHIFT,1, %r25 #else depwi,z 1, 31-PAGE_SHIFT,1, %r25 #endif - add %r26, %r25, %r25 - sub %r25, %r23, %r25 - - -1: fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - fdc,m %r23(%r26) - cmpb,COND(<<) %r26, %r25,1b - fdc,m %r23(%r26) + add %r28, %r25, %r25 + sub %r25, %r1, %r25 + + +1: fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + fdc,m %r1(%r28) + cmpb,COND(<<) %r28, %r25,1b + fdc,m %r1(%r28) sync bv %r0(%r2) - nop + pdtlb (%r25) .exit .procend -ENDPROC(flush_kernel_dcache_page_asm) - -ENTRY(flush_user_dcache_page) +ENDPROC(flush_dcache_page_asm) + +ENTRY(flush_icache_page_asm) .proc .callinfo NO_CALLS .entry - ldil L%dcache_stride, %r1 - ldw R%dcache_stride(%r1), %r23 - + ldil L%(TMPALIAS_MAP_START), %r28 #ifdef CONFIG_64BIT - depdi,z 1,63-PAGE_SHIFT,1, %r25 +#if (TMPALIAS_MAP_START >= 0x80000000) + depdi 0, 31,32, %r28 /* clear any sign extension */ + /* FIXME: page size dependend */ +#endif + extrd,u %r26, 56,32, %r26 /* convert phys addr to tlb insert format */ + depd %r25, 63,22, %r28 /* Form aliased virtual address 'to' */ + depdi 0, 63,12, %r28 /* Clear any offset bits */ #else - depwi,z 1,31-PAGE_SHIFT,1, %r25 + extrw,u %r26, 24,25, %r26 /* convert phys addr to tlb insert format */ + depw %r25, 31,22, %r28 /* Form aliased virtual address 'to' */ + depwi 0, 31,12, %r28 /* Clear any offset bits */ #endif - add %r26, %r25, %r25 - sub %r25, %r23, %r25 + /* Purge any old translation */ -1: fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - fdc,m %r23(%sr3, %r26) - cmpb,COND(<<) %r26, %r25,1b - fdc,m %r23(%sr3, %r26) + pitlb (%sr0,%r28) + + ldil L%icache_stride, %r1 + ldw R%icache_stride(%r1), %r1 + +#ifdef CONFIG_64BIT + depdi,z 1, 63-PAGE_SHIFT,1, %r25 +#else + depwi,z 1, 31-PAGE_SHIFT,1, %r25 +#endif + add %r28, %r25, %r25 + sub %r25, %r1, %r25 + + +1: fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + fic,m %r1(%r28) + cmpb,COND(<<) %r28, %r25,1b + fic,m %r1(%r28) sync bv %r0(%r2) - nop + pitlb (%sr0,%r25) .exit .procend -ENDPROC(flush_user_dcache_page) +ENDPROC(flush_icache_page_asm) -ENTRY(flush_user_icache_page) +ENTRY(flush_kernel_dcache_page_asm) .proc .callinfo NO_CALLS .entry @@ -711,23 +749,23 @@ ENTRY(flush_user_icache_page) sub %r25, %r23, %r25 -1: fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) - fic,m %r23(%sr3, %r26) +1: fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) + fdc,m %r23(%r26) cmpb,COND(<<) %r26, %r25,1b - fic,m %r23(%sr3, %r26) + fdc,m %r23(%r26) sync bv %r0(%r2) @@ -735,8 +773,7 @@ ENTRY(flush_user_icache_page) .exit .procend -ENDPROC(flush_user_icache_page) - +ENDPROC(flush_kernel_dcache_page_asm) ENTRY(purge_kernel_dcache_page) .proc @@ -780,69 +817,6 @@ ENTRY(purge_kernel_dcache_page) .procend ENDPROC(purge_kernel_dcache_page) -#if 0 - /* Currently not used, but it still is a possible alternate - * solution. - */ - -ENTRY(flush_alias_page) - .proc - .callinfo NO_CALLS - .entry - - tophys_r1 %r26 - - ldil L%(TMPALIAS_MAP_START), %r28 -#ifdef CONFIG_64BIT - extrd,u %r26, 56,32, %r26 /* convert phys addr to tlb insert format */ - depd %r25, 63,22, %r28 /* Form aliased virtual address 'to' */ - depdi 0, 63,12, %r28 /* Clear any offset bits */ -#else - extrw,u %r26, 24,25, %r26 /* convert phys addr to tlb insert format */ - depw %r25, 31,22, %r28 /* Form aliased virtual address 'to' */ - depwi 0, 31,12, %r28 /* Clear any offset bits */ -#endif - - /* Purge any old translation */ - - pdtlb 0(%r28) - - ldil L%dcache_stride, %r1 - ldw R%dcache_stride(%r1), %r23 - -#ifdef CONFIG_64BIT - depdi,z 1, 63-PAGE_SHIFT,1, %r29 -#else - depwi,z 1, 31-PAGE_SHIFT,1, %r29 -#endif - add %r28, %r29, %r29 - sub %r29, %r23, %r29 - -1: fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - fdc,m %r23(%r28) - cmpb,COND(<<) %r28, %r29, 1b - fdc,m %r23(%r28) - - sync - bv %r0(%r2) - nop - .exit - - .procend -#endif .export flush_user_dcache_range_asm @@ -865,7 +839,6 @@ flush_user_dcache_range_asm: .exit .procend -ENDPROC(flush_alias_page) ENTRY(flush_kernel_dcache_range_asm) .proc |