aboutsummaryrefslogtreecommitdiffstats
path: root/arch/parisc/kernel/pacache.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/parisc/kernel/pacache.S')
-rw-r--r--arch/parisc/kernel/pacache.S245
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)
608 .procend 608 .procend
609ENDPROC(__clear_user_page_asm) 609ENDPROC(__clear_user_page_asm)
610 610
611ENTRY(flush_kernel_dcache_page_asm) 611ENTRY(flush_dcache_page_asm)
612 .proc 612 .proc
613 .callinfo NO_CALLS 613 .callinfo NO_CALLS
614 .entry 614 .entry
615 615
616 ldil L%(TMPALIAS_MAP_START), %r28
617#ifdef CONFIG_64BIT
618#if (TMPALIAS_MAP_START >= 0x80000000)
619 depdi 0, 31,32, %r28 /* clear any sign extension */
620 /* FIXME: page size dependend */
621#endif
622 extrd,u %r26, 56,32, %r26 /* convert phys addr to tlb insert format */
623 depd %r25, 63,22, %r28 /* Form aliased virtual address 'to' */
624 depdi 0, 63,12, %r28 /* Clear any offset bits */
625#else
626 extrw,u %r26, 24,25, %r26 /* convert phys addr to tlb insert format */
627 depw %r25, 31,22, %r28 /* Form aliased virtual address 'to' */
628 depwi 0, 31,12, %r28 /* Clear any offset bits */
629#endif
630
631 /* Purge any old translation */
632
633 pdtlb 0(%r28)
634
616 ldil L%dcache_stride, %r1 635 ldil L%dcache_stride, %r1
617 ldw R%dcache_stride(%r1), %r23 636 ldw R%dcache_stride(%r1), %r1
618 637
619#ifdef CONFIG_64BIT 638#ifdef CONFIG_64BIT
620 depdi,z 1, 63-PAGE_SHIFT,1, %r25 639 depdi,z 1, 63-PAGE_SHIFT,1, %r25
621#else 640#else
622 depwi,z 1, 31-PAGE_SHIFT,1, %r25 641 depwi,z 1, 31-PAGE_SHIFT,1, %r25
623#endif 642#endif
624 add %r26, %r25, %r25 643 add %r28, %r25, %r25
625 sub %r25, %r23, %r25 644 sub %r25, %r1, %r25
626 645
627 646
6281: fdc,m %r23(%r26) 6471: fdc,m %r1(%r28)
629 fdc,m %r23(%r26) 648 fdc,m %r1(%r28)
630 fdc,m %r23(%r26) 649 fdc,m %r1(%r28)
631 fdc,m %r23(%r26) 650 fdc,m %r1(%r28)
632 fdc,m %r23(%r26) 651 fdc,m %r1(%r28)
633 fdc,m %r23(%r26) 652 fdc,m %r1(%r28)
634 fdc,m %r23(%r26) 653 fdc,m %r1(%r28)
635 fdc,m %r23(%r26) 654 fdc,m %r1(%r28)
636 fdc,m %r23(%r26) 655 fdc,m %r1(%r28)
637 fdc,m %r23(%r26) 656 fdc,m %r1(%r28)
638 fdc,m %r23(%r26) 657 fdc,m %r1(%r28)
639 fdc,m %r23(%r26) 658 fdc,m %r1(%r28)
640 fdc,m %r23(%r26) 659 fdc,m %r1(%r28)
641 fdc,m %r23(%r26) 660 fdc,m %r1(%r28)
642 fdc,m %r23(%r26) 661 fdc,m %r1(%r28)
643 cmpb,COND(<<) %r26, %r25,1b 662 cmpb,COND(<<) %r28, %r25,1b
644 fdc,m %r23(%r26) 663 fdc,m %r1(%r28)
645 664
646 sync 665 sync
647 bv %r0(%r2) 666 bv %r0(%r2)
648 nop 667 pdtlb (%r25)
649 .exit 668 .exit
650 669
651 .procend 670 .procend
652ENDPROC(flush_kernel_dcache_page_asm) 671ENDPROC(flush_dcache_page_asm)
653 672
654ENTRY(flush_user_dcache_page) 673ENTRY(flush_icache_page_asm)
655 .proc 674 .proc
656 .callinfo NO_CALLS 675 .callinfo NO_CALLS
657 .entry 676 .entry
658 677
659 ldil L%dcache_stride, %r1 678 ldil L%(TMPALIAS_MAP_START), %r28
660 ldw R%dcache_stride(%r1), %r23
661
662#ifdef CONFIG_64BIT 679#ifdef CONFIG_64BIT
663 depdi,z 1,63-PAGE_SHIFT,1, %r25 680#if (TMPALIAS_MAP_START >= 0x80000000)
681 depdi 0, 31,32, %r28 /* clear any sign extension */
682 /* FIXME: page size dependend */
683#endif
684 extrd,u %r26, 56,32, %r26 /* convert phys addr to tlb insert format */
685 depd %r25, 63,22, %r28 /* Form aliased virtual address 'to' */
686 depdi 0, 63,12, %r28 /* Clear any offset bits */
664#else 687#else
665 depwi,z 1,31-PAGE_SHIFT,1, %r25 688 extrw,u %r26, 24,25, %r26 /* convert phys addr to tlb insert format */
689 depw %r25, 31,22, %r28 /* Form aliased virtual address 'to' */
690 depwi 0, 31,12, %r28 /* Clear any offset bits */
666#endif 691#endif
667 add %r26, %r25, %r25
668 sub %r25, %r23, %r25
669 692
693 /* Purge any old translation */
670 694
6711: fdc,m %r23(%sr3, %r26) 695 pitlb (%sr0,%r28)
672 fdc,m %r23(%sr3, %r26) 696
673 fdc,m %r23(%sr3, %r26) 697 ldil L%icache_stride, %r1
674 fdc,m %r23(%sr3, %r26) 698 ldw R%icache_stride(%r1), %r1
675 fdc,m %r23(%sr3, %r26) 699
676 fdc,m %r23(%sr3, %r26) 700#ifdef CONFIG_64BIT
677 fdc,m %r23(%sr3, %r26) 701 depdi,z 1, 63-PAGE_SHIFT,1, %r25
678 fdc,m %r23(%sr3, %r26) 702#else
679 fdc,m %r23(%sr3, %r26) 703 depwi,z 1, 31-PAGE_SHIFT,1, %r25
680 fdc,m %r23(%sr3, %r26) 704#endif
681 fdc,m %r23(%sr3, %r26) 705 add %r28, %r25, %r25
682 fdc,m %r23(%sr3, %r26) 706 sub %r25, %r1, %r25
683 fdc,m %r23(%sr3, %r26) 707
684 fdc,m %r23(%sr3, %r26) 708
685 fdc,m %r23(%sr3, %r26) 7091: fic,m %r1(%r28)
686 cmpb,COND(<<) %r26, %r25,1b 710 fic,m %r1(%r28)
687 fdc,m %r23(%sr3, %r26) 711 fic,m %r1(%r28)
712 fic,m %r1(%r28)
713 fic,m %r1(%r28)
714 fic,m %r1(%r28)
715 fic,m %r1(%r28)
716 fic,m %r1(%r28)
717 fic,m %r1(%r28)
718 fic,m %r1(%r28)
719 fic,m %r1(%r28)
720 fic,m %r1(%r28)
721 fic,m %r1(%r28)
722 fic,m %r1(%r28)
723 fic,m %r1(%r28)
724 cmpb,COND(<<) %r28, %r25,1b
725 fic,m %r1(%r28)
688 726
689 sync 727 sync
690 bv %r0(%r2) 728 bv %r0(%r2)
691 nop 729 pitlb (%sr0,%r25)
692 .exit 730 .exit
693 731
694 .procend 732 .procend
695ENDPROC(flush_user_dcache_page) 733ENDPROC(flush_icache_page_asm)
696 734
697ENTRY(flush_user_icache_page) 735ENTRY(flush_kernel_dcache_page_asm)
698 .proc 736 .proc
699 .callinfo NO_CALLS 737 .callinfo NO_CALLS
700 .entry 738 .entry
@@ -711,23 +749,23 @@ ENTRY(flush_user_icache_page)
711 sub %r25, %r23, %r25 749 sub %r25, %r23, %r25
712 750
713 751
7141: fic,m %r23(%sr3, %r26) 7521: fdc,m %r23(%r26)
715 fic,m %r23(%sr3, %r26) 753 fdc,m %r23(%r26)
716 fic,m %r23(%sr3, %r26) 754 fdc,m %r23(%r26)
717 fic,m %r23(%sr3, %r26) 755 fdc,m %r23(%r26)
718 fic,m %r23(%sr3, %r26) 756 fdc,m %r23(%r26)
719 fic,m %r23(%sr3, %r26) 757 fdc,m %r23(%r26)
720 fic,m %r23(%sr3, %r26) 758 fdc,m %r23(%r26)
721 fic,m %r23(%sr3, %r26) 759 fdc,m %r23(%r26)
722 fic,m %r23(%sr3, %r26) 760 fdc,m %r23(%r26)
723 fic,m %r23(%sr3, %r26) 761 fdc,m %r23(%r26)
724 fic,m %r23(%sr3, %r26) 762 fdc,m %r23(%r26)
725 fic,m %r23(%sr3, %r26) 763 fdc,m %r23(%r26)
726 fic,m %r23(%sr3, %r26) 764 fdc,m %r23(%r26)
727 fic,m %r23(%sr3, %r26) 765 fdc,m %r23(%r26)
728 fic,m %r23(%sr3, %r26) 766 fdc,m %r23(%r26)
729 cmpb,COND(<<) %r26, %r25,1b 767 cmpb,COND(<<) %r26, %r25,1b
730 fic,m %r23(%sr3, %r26) 768 fdc,m %r23(%r26)
731 769
732 sync 770 sync
733 bv %r0(%r2) 771 bv %r0(%r2)
@@ -735,8 +773,7 @@ ENTRY(flush_user_icache_page)
735 .exit 773 .exit
736 774
737 .procend 775 .procend
738ENDPROC(flush_user_icache_page) 776ENDPROC(flush_kernel_dcache_page_asm)
739
740 777
741ENTRY(purge_kernel_dcache_page) 778ENTRY(purge_kernel_dcache_page)
742 .proc 779 .proc
@@ -780,69 +817,6 @@ ENTRY(purge_kernel_dcache_page)
780 .procend 817 .procend
781ENDPROC(purge_kernel_dcache_page) 818ENDPROC(purge_kernel_dcache_page)
782 819
783#if 0
784 /* Currently not used, but it still is a possible alternate
785 * solution.
786 */
787
788ENTRY(flush_alias_page)
789 .proc
790 .callinfo NO_CALLS
791 .entry
792
793 tophys_r1 %r26
794
795 ldil L%(TMPALIAS_MAP_START), %r28
796#ifdef CONFIG_64BIT
797 extrd,u %r26, 56,32, %r26 /* convert phys addr to tlb insert format */
798 depd %r25, 63,22, %r28 /* Form aliased virtual address 'to' */
799 depdi 0, 63,12, %r28 /* Clear any offset bits */
800#else
801 extrw,u %r26, 24,25, %r26 /* convert phys addr to tlb insert format */
802 depw %r25, 31,22, %r28 /* Form aliased virtual address 'to' */
803 depwi 0, 31,12, %r28 /* Clear any offset bits */
804#endif
805
806 /* Purge any old translation */
807
808 pdtlb 0(%r28)
809
810 ldil L%dcache_stride, %r1
811 ldw R%dcache_stride(%r1), %r23
812
813#ifdef CONFIG_64BIT
814 depdi,z 1, 63-PAGE_SHIFT,1, %r29
815#else
816 depwi,z 1, 31-PAGE_SHIFT,1, %r29
817#endif
818 add %r28, %r29, %r29
819 sub %r29, %r23, %r29
820
8211: fdc,m %r23(%r28)
822 fdc,m %r23(%r28)
823 fdc,m %r23(%r28)
824 fdc,m %r23(%r28)
825 fdc,m %r23(%r28)
826 fdc,m %r23(%r28)
827 fdc,m %r23(%r28)
828 fdc,m %r23(%r28)
829 fdc,m %r23(%r28)
830 fdc,m %r23(%r28)
831 fdc,m %r23(%r28)
832 fdc,m %r23(%r28)
833 fdc,m %r23(%r28)
834 fdc,m %r23(%r28)
835 fdc,m %r23(%r28)
836 cmpb,COND(<<) %r28, %r29, 1b
837 fdc,m %r23(%r28)
838
839 sync
840 bv %r0(%r2)
841 nop
842 .exit
843
844 .procend
845#endif
846 820
847 .export flush_user_dcache_range_asm 821 .export flush_user_dcache_range_asm
848 822
@@ -865,7 +839,6 @@ flush_user_dcache_range_asm:
865 .exit 839 .exit
866 840
867 .procend 841 .procend
868ENDPROC(flush_alias_page)
869 842
870ENTRY(flush_kernel_dcache_range_asm) 843ENTRY(flush_kernel_dcache_range_asm)
871 .proc 844 .proc
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 03:41:02 -0500