exceptions-64e.S (277a163c83d7ba93fba1e8980d29a9f8bfcfba6c) exceptions-64e.S (b1576fec7f4dd4657694fefc97fda4cf28ec68e9)
1/*
2 * Boot code and exception vectors for Book3E processors
3 *
4 * Copyright (C) 2007 Ben. Herrenschmidt (benh@kernel.crashing.org), IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version

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494 START_EXCEPTION(label); \
495 NORMAL_EXCEPTION_PROLOG(trapnum, intnum, PROLOG_ADDITION_MASKABLE)\
496 EXCEPTION_COMMON(trapnum) \
497 INTS_DISABLE; \
498 ack(r8); \
499 CHECK_NAPPING(); \
500 addi r3,r1,STACK_FRAME_OVERHEAD; \
501 bl hdlr; \
1/*
2 * Boot code and exception vectors for Book3E processors
3 *
4 * Copyright (C) 2007 Ben. Herrenschmidt (benh@kernel.crashing.org), IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version

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494 START_EXCEPTION(label); \
495 NORMAL_EXCEPTION_PROLOG(trapnum, intnum, PROLOG_ADDITION_MASKABLE)\
496 EXCEPTION_COMMON(trapnum) \
497 INTS_DISABLE; \
498 ack(r8); \
499 CHECK_NAPPING(); \
500 addi r3,r1,STACK_FRAME_OVERHEAD; \
501 bl hdlr; \
502 b .ret_from_except_lite;
502 b ret_from_except_lite;
503
504/* This value is used to mark exception frames on the stack. */
505 .section ".toc","aw"
506exception_marker:
507 .tc ID_EXC_MARKER[TC],STACK_FRAME_REGS_MARKER
508
509
510/*

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545 .globl interrupt_end_book3e
546interrupt_end_book3e:
547
548/* Critical Input Interrupt */
549 START_EXCEPTION(critical_input);
550 CRIT_EXCEPTION_PROLOG(0x100, BOOKE_INTERRUPT_CRITICAL,
551 PROLOG_ADDITION_NONE)
552 EXCEPTION_COMMON_CRIT(0x100)
503
504/* This value is used to mark exception frames on the stack. */
505 .section ".toc","aw"
506exception_marker:
507 .tc ID_EXC_MARKER[TC],STACK_FRAME_REGS_MARKER
508
509
510/*

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545 .globl interrupt_end_book3e
546interrupt_end_book3e:
547
548/* Critical Input Interrupt */
549 START_EXCEPTION(critical_input);
550 CRIT_EXCEPTION_PROLOG(0x100, BOOKE_INTERRUPT_CRITICAL,
551 PROLOG_ADDITION_NONE)
552 EXCEPTION_COMMON_CRIT(0x100)
553 bl .save_nvgprs
553 bl save_nvgprs
554 bl special_reg_save
555 CHECK_NAPPING();
556 addi r3,r1,STACK_FRAME_OVERHEAD
554 bl special_reg_save
555 CHECK_NAPPING();
556 addi r3,r1,STACK_FRAME_OVERHEAD
557 bl .unknown_exception
557 bl unknown_exception
558 b ret_from_crit_except
559
560/* Machine Check Interrupt */
561 START_EXCEPTION(machine_check);
562 MC_EXCEPTION_PROLOG(0x000, BOOKE_INTERRUPT_MACHINE_CHECK,
563 PROLOG_ADDITION_NONE)
564 EXCEPTION_COMMON_MC(0x000)
558 b ret_from_crit_except
559
560/* Machine Check Interrupt */
561 START_EXCEPTION(machine_check);
562 MC_EXCEPTION_PROLOG(0x000, BOOKE_INTERRUPT_MACHINE_CHECK,
563 PROLOG_ADDITION_NONE)
564 EXCEPTION_COMMON_MC(0x000)
565 bl .save_nvgprs
565 bl save_nvgprs
566 bl special_reg_save
567 CHECK_NAPPING();
568 addi r3,r1,STACK_FRAME_OVERHEAD
566 bl special_reg_save
567 CHECK_NAPPING();
568 addi r3,r1,STACK_FRAME_OVERHEAD
569 bl .machine_check_exception
569 bl machine_check_exception
570 b ret_from_mc_except
571
572/* Data Storage Interrupt */
573 START_EXCEPTION(data_storage)
574 NORMAL_EXCEPTION_PROLOG(0x300, BOOKE_INTERRUPT_DATA_STORAGE,
575 PROLOG_ADDITION_2REGS)
576 mfspr r14,SPRN_DEAR
577 mfspr r15,SPRN_ESR

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607 NORMAL_EXCEPTION_PROLOG(0x700, BOOKE_INTERRUPT_PROGRAM,
608 PROLOG_ADDITION_1REG)
609 mfspr r14,SPRN_ESR
610 EXCEPTION_COMMON(0x700)
611 INTS_DISABLE
612 std r14,_DSISR(r1)
613 addi r3,r1,STACK_FRAME_OVERHEAD
614 ld r14,PACA_EXGEN+EX_R14(r13)
570 b ret_from_mc_except
571
572/* Data Storage Interrupt */
573 START_EXCEPTION(data_storage)
574 NORMAL_EXCEPTION_PROLOG(0x300, BOOKE_INTERRUPT_DATA_STORAGE,
575 PROLOG_ADDITION_2REGS)
576 mfspr r14,SPRN_DEAR
577 mfspr r15,SPRN_ESR

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607 NORMAL_EXCEPTION_PROLOG(0x700, BOOKE_INTERRUPT_PROGRAM,
608 PROLOG_ADDITION_1REG)
609 mfspr r14,SPRN_ESR
610 EXCEPTION_COMMON(0x700)
611 INTS_DISABLE
612 std r14,_DSISR(r1)
613 addi r3,r1,STACK_FRAME_OVERHEAD
614 ld r14,PACA_EXGEN+EX_R14(r13)
615 bl .save_nvgprs
616 bl .program_check_exception
617 b .ret_from_except
615 bl save_nvgprs
616 bl program_check_exception
617 b ret_from_except
618
619/* Floating Point Unavailable Interrupt */
620 START_EXCEPTION(fp_unavailable);
621 NORMAL_EXCEPTION_PROLOG(0x800, BOOKE_INTERRUPT_FP_UNAVAIL,
622 PROLOG_ADDITION_NONE)
623 /* we can probably do a shorter exception entry for that one... */
624 EXCEPTION_COMMON(0x800)
625 ld r12,_MSR(r1)
626 andi. r0,r12,MSR_PR;
627 beq- 1f
618
619/* Floating Point Unavailable Interrupt */
620 START_EXCEPTION(fp_unavailable);
621 NORMAL_EXCEPTION_PROLOG(0x800, BOOKE_INTERRUPT_FP_UNAVAIL,
622 PROLOG_ADDITION_NONE)
623 /* we can probably do a shorter exception entry for that one... */
624 EXCEPTION_COMMON(0x800)
625 ld r12,_MSR(r1)
626 andi. r0,r12,MSR_PR;
627 beq- 1f
628 bl .load_up_fpu
628 bl load_up_fpu
629 b fast_exception_return
6301: INTS_DISABLE
629 b fast_exception_return
6301: INTS_DISABLE
631 bl .save_nvgprs
631 bl save_nvgprs
632 addi r3,r1,STACK_FRAME_OVERHEAD
632 addi r3,r1,STACK_FRAME_OVERHEAD
633 bl .kernel_fp_unavailable_exception
634 b .ret_from_except
633 bl kernel_fp_unavailable_exception
634 b ret_from_except
635
636/* Altivec Unavailable Interrupt */
637 START_EXCEPTION(altivec_unavailable);
638 NORMAL_EXCEPTION_PROLOG(0x200, BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL,
639 PROLOG_ADDITION_NONE)
640 /* we can probably do a shorter exception entry for that one... */
641 EXCEPTION_COMMON(0x200)
642#ifdef CONFIG_ALTIVEC
643BEGIN_FTR_SECTION
644 ld r12,_MSR(r1)
645 andi. r0,r12,MSR_PR;
646 beq- 1f
635
636/* Altivec Unavailable Interrupt */
637 START_EXCEPTION(altivec_unavailable);
638 NORMAL_EXCEPTION_PROLOG(0x200, BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL,
639 PROLOG_ADDITION_NONE)
640 /* we can probably do a shorter exception entry for that one... */
641 EXCEPTION_COMMON(0x200)
642#ifdef CONFIG_ALTIVEC
643BEGIN_FTR_SECTION
644 ld r12,_MSR(r1)
645 andi. r0,r12,MSR_PR;
646 beq- 1f
647 bl .load_up_altivec
647 bl load_up_altivec
648 b fast_exception_return
6491:
650END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
651#endif
652 INTS_DISABLE
648 b fast_exception_return
6491:
650END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
651#endif
652 INTS_DISABLE
653 bl .save_nvgprs
653 bl save_nvgprs
654 addi r3,r1,STACK_FRAME_OVERHEAD
654 addi r3,r1,STACK_FRAME_OVERHEAD
655 bl .altivec_unavailable_exception
656 b .ret_from_except
655 bl altivec_unavailable_exception
656 b ret_from_except
657
658/* AltiVec Assist */
659 START_EXCEPTION(altivec_assist);
660 NORMAL_EXCEPTION_PROLOG(0x220,
661 BOOKE_INTERRUPT_SPE_FP_DATA_ALTIVEC_ASSIST,
662 PROLOG_ADDITION_NONE)
663 EXCEPTION_COMMON(0x220)
664 INTS_DISABLE
657
658/* AltiVec Assist */
659 START_EXCEPTION(altivec_assist);
660 NORMAL_EXCEPTION_PROLOG(0x220,
661 BOOKE_INTERRUPT_SPE_FP_DATA_ALTIVEC_ASSIST,
662 PROLOG_ADDITION_NONE)
663 EXCEPTION_COMMON(0x220)
664 INTS_DISABLE
665 bl .save_nvgprs
665 bl save_nvgprs
666 addi r3,r1,STACK_FRAME_OVERHEAD
667#ifdef CONFIG_ALTIVEC
668BEGIN_FTR_SECTION
666 addi r3,r1,STACK_FRAME_OVERHEAD
667#ifdef CONFIG_ALTIVEC
668BEGIN_FTR_SECTION
669 bl .altivec_assist_exception
669 bl altivec_assist_exception
670END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
671#else
670END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
671#else
672 bl .unknown_exception
672 bl unknown_exception
673#endif
673#endif
674 b .ret_from_except
674 b ret_from_except
675
676
677/* Decrementer Interrupt */
678 MASKABLE_EXCEPTION(0x900, BOOKE_INTERRUPT_DECREMENTER,
679 decrementer, .timer_interrupt, ACK_DEC)
680
681/* Fixed Interval Timer Interrupt */
682 MASKABLE_EXCEPTION(0x980, BOOKE_INTERRUPT_FIT,
683 fixed_interval, .unknown_exception, ACK_FIT)
684
685/* Watchdog Timer Interrupt */
686 START_EXCEPTION(watchdog);
687 CRIT_EXCEPTION_PROLOG(0x9f0, BOOKE_INTERRUPT_WATCHDOG,
688 PROLOG_ADDITION_NONE)
689 EXCEPTION_COMMON_CRIT(0x9f0)
675
676
677/* Decrementer Interrupt */
678 MASKABLE_EXCEPTION(0x900, BOOKE_INTERRUPT_DECREMENTER,
679 decrementer, .timer_interrupt, ACK_DEC)
680
681/* Fixed Interval Timer Interrupt */
682 MASKABLE_EXCEPTION(0x980, BOOKE_INTERRUPT_FIT,
683 fixed_interval, .unknown_exception, ACK_FIT)
684
685/* Watchdog Timer Interrupt */
686 START_EXCEPTION(watchdog);
687 CRIT_EXCEPTION_PROLOG(0x9f0, BOOKE_INTERRUPT_WATCHDOG,
688 PROLOG_ADDITION_NONE)
689 EXCEPTION_COMMON_CRIT(0x9f0)
690 bl .save_nvgprs
690 bl save_nvgprs
691 bl special_reg_save
692 CHECK_NAPPING();
693 addi r3,r1,STACK_FRAME_OVERHEAD
694#ifdef CONFIG_BOOKE_WDT
691 bl special_reg_save
692 CHECK_NAPPING();
693 addi r3,r1,STACK_FRAME_OVERHEAD
694#ifdef CONFIG_BOOKE_WDT
695 bl .WatchdogException
695 bl WatchdogException
696#else
696#else
697 bl .unknown_exception
697 bl unknown_exception
698#endif
699 b ret_from_crit_except
700
701/* System Call Interrupt */
702 START_EXCEPTION(system_call)
703 mr r9,r13 /* keep a copy of userland r13 */
704 mfspr r11,SPRN_SRR0 /* get return address */
705 mfspr r12,SPRN_SRR1 /* get previous MSR */
706 mfspr r13,SPRN_SPRG_PACA /* get our PACA */
707 b system_call_common
708
709/* Auxiliary Processor Unavailable Interrupt */
710 START_EXCEPTION(ap_unavailable);
711 NORMAL_EXCEPTION_PROLOG(0xf20, BOOKE_INTERRUPT_AP_UNAVAIL,
712 PROLOG_ADDITION_NONE)
713 EXCEPTION_COMMON(0xf20)
714 INTS_DISABLE
698#endif
699 b ret_from_crit_except
700
701/* System Call Interrupt */
702 START_EXCEPTION(system_call)
703 mr r9,r13 /* keep a copy of userland r13 */
704 mfspr r11,SPRN_SRR0 /* get return address */
705 mfspr r12,SPRN_SRR1 /* get previous MSR */
706 mfspr r13,SPRN_SPRG_PACA /* get our PACA */
707 b system_call_common
708
709/* Auxiliary Processor Unavailable Interrupt */
710 START_EXCEPTION(ap_unavailable);
711 NORMAL_EXCEPTION_PROLOG(0xf20, BOOKE_INTERRUPT_AP_UNAVAIL,
712 PROLOG_ADDITION_NONE)
713 EXCEPTION_COMMON(0xf20)
714 INTS_DISABLE
715 bl .save_nvgprs
715 bl save_nvgprs
716 addi r3,r1,STACK_FRAME_OVERHEAD
716 addi r3,r1,STACK_FRAME_OVERHEAD
717 bl .unknown_exception
718 b .ret_from_except
717 bl unknown_exception
718 b ret_from_except
719
720/* Debug exception as a critical interrupt*/
721 START_EXCEPTION(debug_crit);
722 CRIT_EXCEPTION_PROLOG(0xd00, BOOKE_INTERRUPT_DEBUG,
723 PROLOG_ADDITION_2REGS)
724
725 /*
726 * If there is a single step or branch-taken exception in an

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769 */
770 mfspr r14,SPRN_DBSR
771 EXCEPTION_COMMON_CRIT(0xd00)
772 std r14,_DSISR(r1)
773 addi r3,r1,STACK_FRAME_OVERHEAD
774 mr r4,r14
775 ld r14,PACA_EXCRIT+EX_R14(r13)
776 ld r15,PACA_EXCRIT+EX_R15(r13)
719
720/* Debug exception as a critical interrupt*/
721 START_EXCEPTION(debug_crit);
722 CRIT_EXCEPTION_PROLOG(0xd00, BOOKE_INTERRUPT_DEBUG,
723 PROLOG_ADDITION_2REGS)
724
725 /*
726 * If there is a single step or branch-taken exception in an

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769 */
770 mfspr r14,SPRN_DBSR
771 EXCEPTION_COMMON_CRIT(0xd00)
772 std r14,_DSISR(r1)
773 addi r3,r1,STACK_FRAME_OVERHEAD
774 mr r4,r14
775 ld r14,PACA_EXCRIT+EX_R14(r13)
776 ld r15,PACA_EXCRIT+EX_R15(r13)
777 bl .save_nvgprs
778 bl .DebugException
779 b .ret_from_except
777 bl save_nvgprs
778 bl DebugException
779 b ret_from_except
780
781kernel_dbg_exc:
782 b . /* NYI */
783
784/* Debug exception as a debug interrupt*/
785 START_EXCEPTION(debug_debug);
786 DBG_EXCEPTION_PROLOG(0xd00, BOOKE_INTERRUPT_DEBUG,
787 PROLOG_ADDITION_2REGS)

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834 mfspr r14,SPRN_DBSR
835 EXCEPTION_COMMON_DBG(0xd08)
836 INTS_DISABLE
837 std r14,_DSISR(r1)
838 addi r3,r1,STACK_FRAME_OVERHEAD
839 mr r4,r14
840 ld r14,PACA_EXDBG+EX_R14(r13)
841 ld r15,PACA_EXDBG+EX_R15(r13)
780
781kernel_dbg_exc:
782 b . /* NYI */
783
784/* Debug exception as a debug interrupt*/
785 START_EXCEPTION(debug_debug);
786 DBG_EXCEPTION_PROLOG(0xd00, BOOKE_INTERRUPT_DEBUG,
787 PROLOG_ADDITION_2REGS)

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834 mfspr r14,SPRN_DBSR
835 EXCEPTION_COMMON_DBG(0xd08)
836 INTS_DISABLE
837 std r14,_DSISR(r1)
838 addi r3,r1,STACK_FRAME_OVERHEAD
839 mr r4,r14
840 ld r14,PACA_EXDBG+EX_R14(r13)
841 ld r15,PACA_EXDBG+EX_R15(r13)
842 bl .save_nvgprs
843 bl .DebugException
844 b .ret_from_except
842 bl save_nvgprs
843 bl DebugException
844 b ret_from_except
845
846 START_EXCEPTION(perfmon);
847 NORMAL_EXCEPTION_PROLOG(0x260, BOOKE_INTERRUPT_PERFORMANCE_MONITOR,
848 PROLOG_ADDITION_NONE)
849 EXCEPTION_COMMON(0x260)
850 INTS_DISABLE
851 CHECK_NAPPING()
852 addi r3,r1,STACK_FRAME_OVERHEAD
845
846 START_EXCEPTION(perfmon);
847 NORMAL_EXCEPTION_PROLOG(0x260, BOOKE_INTERRUPT_PERFORMANCE_MONITOR,
848 PROLOG_ADDITION_NONE)
849 EXCEPTION_COMMON(0x260)
850 INTS_DISABLE
851 CHECK_NAPPING()
852 addi r3,r1,STACK_FRAME_OVERHEAD
853 bl .performance_monitor_exception
854 b .ret_from_except_lite
853 bl performance_monitor_exception
854 b ret_from_except_lite
855
856/* Doorbell interrupt */
857 MASKABLE_EXCEPTION(0x280, BOOKE_INTERRUPT_DOORBELL,
858 doorbell, .doorbell_exception, ACK_NONE)
859
860/* Doorbell critical Interrupt */
861 START_EXCEPTION(doorbell_crit);
862 CRIT_EXCEPTION_PROLOG(0x2a0, BOOKE_INTERRUPT_DOORBELL_CRITICAL,
863 PROLOG_ADDITION_NONE)
864 EXCEPTION_COMMON_CRIT(0x2a0)
855
856/* Doorbell interrupt */
857 MASKABLE_EXCEPTION(0x280, BOOKE_INTERRUPT_DOORBELL,
858 doorbell, .doorbell_exception, ACK_NONE)
859
860/* Doorbell critical Interrupt */
861 START_EXCEPTION(doorbell_crit);
862 CRIT_EXCEPTION_PROLOG(0x2a0, BOOKE_INTERRUPT_DOORBELL_CRITICAL,
863 PROLOG_ADDITION_NONE)
864 EXCEPTION_COMMON_CRIT(0x2a0)
865 bl .save_nvgprs
865 bl save_nvgprs
866 bl special_reg_save
867 CHECK_NAPPING();
868 addi r3,r1,STACK_FRAME_OVERHEAD
866 bl special_reg_save
867 CHECK_NAPPING();
868 addi r3,r1,STACK_FRAME_OVERHEAD
869 bl .unknown_exception
869 bl unknown_exception
870 b ret_from_crit_except
871
872/*
873 * Guest doorbell interrupt
874 * This general exception use GSRRx save/restore registers
875 */
876 START_EXCEPTION(guest_doorbell);
877 GDBELL_EXCEPTION_PROLOG(0x2c0, BOOKE_INTERRUPT_GUEST_DBELL,
878 PROLOG_ADDITION_NONE)
879 EXCEPTION_COMMON(0x2c0)
880 addi r3,r1,STACK_FRAME_OVERHEAD
870 b ret_from_crit_except
871
872/*
873 * Guest doorbell interrupt
874 * This general exception use GSRRx save/restore registers
875 */
876 START_EXCEPTION(guest_doorbell);
877 GDBELL_EXCEPTION_PROLOG(0x2c0, BOOKE_INTERRUPT_GUEST_DBELL,
878 PROLOG_ADDITION_NONE)
879 EXCEPTION_COMMON(0x2c0)
880 addi r3,r1,STACK_FRAME_OVERHEAD
881 bl .save_nvgprs
881 bl save_nvgprs
882 INTS_RESTORE_HARD
882 INTS_RESTORE_HARD
883 bl .unknown_exception
884 b .ret_from_except
883 bl unknown_exception
884 b ret_from_except
885
886/* Guest Doorbell critical Interrupt */
887 START_EXCEPTION(guest_doorbell_crit);
888 CRIT_EXCEPTION_PROLOG(0x2e0, BOOKE_INTERRUPT_GUEST_DBELL_CRIT,
889 PROLOG_ADDITION_NONE)
890 EXCEPTION_COMMON_CRIT(0x2e0)
885
886/* Guest Doorbell critical Interrupt */
887 START_EXCEPTION(guest_doorbell_crit);
888 CRIT_EXCEPTION_PROLOG(0x2e0, BOOKE_INTERRUPT_GUEST_DBELL_CRIT,
889 PROLOG_ADDITION_NONE)
890 EXCEPTION_COMMON_CRIT(0x2e0)
891 bl .save_nvgprs
891 bl save_nvgprs
892 bl special_reg_save
893 CHECK_NAPPING();
894 addi r3,r1,STACK_FRAME_OVERHEAD
892 bl special_reg_save
893 CHECK_NAPPING();
894 addi r3,r1,STACK_FRAME_OVERHEAD
895 bl .unknown_exception
895 bl unknown_exception
896 b ret_from_crit_except
897
898/* Hypervisor call */
899 START_EXCEPTION(hypercall);
900 NORMAL_EXCEPTION_PROLOG(0x310, BOOKE_INTERRUPT_HV_SYSCALL,
901 PROLOG_ADDITION_NONE)
902 EXCEPTION_COMMON(0x310)
903 addi r3,r1,STACK_FRAME_OVERHEAD
896 b ret_from_crit_except
897
898/* Hypervisor call */
899 START_EXCEPTION(hypercall);
900 NORMAL_EXCEPTION_PROLOG(0x310, BOOKE_INTERRUPT_HV_SYSCALL,
901 PROLOG_ADDITION_NONE)
902 EXCEPTION_COMMON(0x310)
903 addi r3,r1,STACK_FRAME_OVERHEAD
904 bl .save_nvgprs
904 bl save_nvgprs
905 INTS_RESTORE_HARD
905 INTS_RESTORE_HARD
906 bl .unknown_exception
907 b .ret_from_except
906 bl unknown_exception
907 b ret_from_except
908
909/* Embedded Hypervisor priviledged */
910 START_EXCEPTION(ehpriv);
911 NORMAL_EXCEPTION_PROLOG(0x320, BOOKE_INTERRUPT_HV_PRIV,
912 PROLOG_ADDITION_NONE)
913 EXCEPTION_COMMON(0x320)
914 addi r3,r1,STACK_FRAME_OVERHEAD
908
909/* Embedded Hypervisor priviledged */
910 START_EXCEPTION(ehpriv);
911 NORMAL_EXCEPTION_PROLOG(0x320, BOOKE_INTERRUPT_HV_PRIV,
912 PROLOG_ADDITION_NONE)
913 EXCEPTION_COMMON(0x320)
914 addi r3,r1,STACK_FRAME_OVERHEAD
915 bl .save_nvgprs
915 bl save_nvgprs
916 INTS_RESTORE_HARD
916 INTS_RESTORE_HARD
917 bl .unknown_exception
918 b .ret_from_except
917 bl unknown_exception
918 b ret_from_except
919
920/* LRAT Error interrupt */
921 START_EXCEPTION(lrat_error);
922 NORMAL_EXCEPTION_PROLOG(0x340, BOOKE_INTERRUPT_LRAT_ERROR,
923 PROLOG_ADDITION_NONE)
924 EXCEPTION_COMMON(0x340)
925 addi r3,r1,STACK_FRAME_OVERHEAD
926 bl .save_nvgprs

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1009storage_fault_common:
1010 std r14,_DAR(r1)
1011 std r15,_DSISR(r1)
1012 addi r3,r1,STACK_FRAME_OVERHEAD
1013 mr r4,r14
1014 mr r5,r15
1015 ld r14,PACA_EXGEN+EX_R14(r13)
1016 ld r15,PACA_EXGEN+EX_R15(r13)
919
920/* LRAT Error interrupt */
921 START_EXCEPTION(lrat_error);
922 NORMAL_EXCEPTION_PROLOG(0x340, BOOKE_INTERRUPT_LRAT_ERROR,
923 PROLOG_ADDITION_NONE)
924 EXCEPTION_COMMON(0x340)
925 addi r3,r1,STACK_FRAME_OVERHEAD
926 bl .save_nvgprs

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1009storage_fault_common:
1010 std r14,_DAR(r1)
1011 std r15,_DSISR(r1)
1012 addi r3,r1,STACK_FRAME_OVERHEAD
1013 mr r4,r14
1014 mr r5,r15
1015 ld r14,PACA_EXGEN+EX_R14(r13)
1016 ld r15,PACA_EXGEN+EX_R15(r13)
1017 bl .do_page_fault
1017 bl do_page_fault
1018 cmpdi r3,0
1019 bne- 1f
1018 cmpdi r3,0
1019 bne- 1f
1020 b .ret_from_except_lite
10211: bl .save_nvgprs
1020 b ret_from_except_lite
10211: bl save_nvgprs
1022 mr r5,r3
1023 addi r3,r1,STACK_FRAME_OVERHEAD
1024 ld r4,_DAR(r1)
1022 mr r5,r3
1023 addi r3,r1,STACK_FRAME_OVERHEAD
1024 ld r4,_DAR(r1)
1025 bl .bad_page_fault
1026 b .ret_from_except
1025 bl bad_page_fault
1026 b ret_from_except
1027
1028/*
1029 * Alignment exception doesn't fit entirely in the 0x100 bytes so it
1030 * continues here.
1031 */
1032alignment_more:
1033 std r14,_DAR(r1)
1034 std r15,_DSISR(r1)
1035 addi r3,r1,STACK_FRAME_OVERHEAD
1036 ld r14,PACA_EXGEN+EX_R14(r13)
1037 ld r15,PACA_EXGEN+EX_R15(r13)
1027
1028/*
1029 * Alignment exception doesn't fit entirely in the 0x100 bytes so it
1030 * continues here.
1031 */
1032alignment_more:
1033 std r14,_DAR(r1)
1034 std r15,_DSISR(r1)
1035 addi r3,r1,STACK_FRAME_OVERHEAD
1036 ld r14,PACA_EXGEN+EX_R14(r13)
1037 ld r15,PACA_EXGEN+EX_R15(r13)
1038 bl .save_nvgprs
1038 bl save_nvgprs
1039 INTS_RESTORE_HARD
1039 INTS_RESTORE_HARD
1040 bl .alignment_exception
1041 b .ret_from_except
1040 bl alignment_exception
1041 b ret_from_except
1042
1043/*
1044 * We branch here from entry_64.S for the last stage of the exception
1045 * return code path. MSR:EE is expected to be off at that point
1046 */
1047_GLOBAL(exception_return_book3e)
1048 b 1f
1049

--- 117 unchanged lines hidden (view full) ---

1167 lhz r12,PACA_TRAP_SAVE(r13)
1168 std r12,_TRAP(r1)
1169 addi r11,r1,INT_FRAME_SIZE
1170 std r11,0(r1)
1171 li r12,0
1172 std r12,0(r11)
1173 ld r2,PACATOC(r13)
11741: addi r3,r1,STACK_FRAME_OVERHEAD
1042
1043/*
1044 * We branch here from entry_64.S for the last stage of the exception
1045 * return code path. MSR:EE is expected to be off at that point
1046 */
1047_GLOBAL(exception_return_book3e)
1048 b 1f
1049

--- 117 unchanged lines hidden (view full) ---

1167 lhz r12,PACA_TRAP_SAVE(r13)
1168 std r12,_TRAP(r1)
1169 addi r11,r1,INT_FRAME_SIZE
1170 std r11,0(r1)
1171 li r12,0
1172 std r12,0(r11)
1173 ld r2,PACATOC(r13)
11741: addi r3,r1,STACK_FRAME_OVERHEAD
1175 bl .kernel_bad_stack
1175 bl kernel_bad_stack
1176 b 1b
1177
1178/*
1179 * Setup the initial TLB for a core. This current implementation
1180 * assume that whatever we are running off will not conflict with
1181 * the new mapping at PAGE_OFFSET.
1182 */
1183_GLOBAL(initial_tlb_book3e)

--- 332 unchanged lines hidden (view full) ---

1516_GLOBAL(start_initialization_book3e)
1517 mflr r28
1518
1519 /* First, we need to setup some initial TLBs to map the kernel
1520 * text, data and bss at PAGE_OFFSET. We don't have a real mode
1521 * and always use AS 0, so we just set it up to match our link
1522 * address and never use 0 based addresses.
1523 */
1176 b 1b
1177
1178/*
1179 * Setup the initial TLB for a core. This current implementation
1180 * assume that whatever we are running off will not conflict with
1181 * the new mapping at PAGE_OFFSET.
1182 */
1183_GLOBAL(initial_tlb_book3e)

--- 332 unchanged lines hidden (view full) ---

1516_GLOBAL(start_initialization_book3e)
1517 mflr r28
1518
1519 /* First, we need to setup some initial TLBs to map the kernel
1520 * text, data and bss at PAGE_OFFSET. We don't have a real mode
1521 * and always use AS 0, so we just set it up to match our link
1522 * address and never use 0 based addresses.
1523 */
1524 bl .initial_tlb_book3e
1524 bl initial_tlb_book3e
1525
1526 /* Init global core bits */
1525
1526 /* Init global core bits */
1527 bl .init_core_book3e
1527 bl init_core_book3e
1528
1529 /* Init per-thread bits */
1528
1529 /* Init per-thread bits */
1530 bl .init_thread_book3e
1530 bl init_thread_book3e
1531
1532 /* Return to common init code */
1533 tovirt(r28,r28)
1534 mtlr r28
1535 blr
1536
1537
1538/*

--- 4 unchanged lines hidden (view full) ---

1543 * except that it's generally entered from the holding loop in head_64.S
1544 * after CPUs have been gathered by Open Firmware.
1545 *
1546 * We assume we are in 32 bits mode running with whatever TLB entry was
1547 * set for us by the firmware or POR engine.
1548 */
1549_GLOBAL(book3e_secondary_core_init_tlb_set)
1550 li r4,1
1531
1532 /* Return to common init code */
1533 tovirt(r28,r28)
1534 mtlr r28
1535 blr
1536
1537
1538/*

--- 4 unchanged lines hidden (view full) ---

1543 * except that it's generally entered from the holding loop in head_64.S
1544 * after CPUs have been gathered by Open Firmware.
1545 *
1546 * We assume we are in 32 bits mode running with whatever TLB entry was
1547 * set for us by the firmware or POR engine.
1548 */
1549_GLOBAL(book3e_secondary_core_init_tlb_set)
1550 li r4,1
1551 b .generic_secondary_smp_init
1551 b generic_secondary_smp_init
1552
1553_GLOBAL(book3e_secondary_core_init)
1554 mflr r28
1555
1556 /* Do we need to setup initial TLB entry ? */
1557 cmplwi r4,0
1558 bne 2f
1559
1560 /* Setup TLB for this core */
1552
1553_GLOBAL(book3e_secondary_core_init)
1554 mflr r28
1555
1556 /* Do we need to setup initial TLB entry ? */
1557 cmplwi r4,0
1558 bne 2f
1559
1560 /* Setup TLB for this core */
1561 bl .initial_tlb_book3e
1561 bl initial_tlb_book3e
1562
1563 /* We can return from the above running at a different
1564 * address, so recalculate r2 (TOC)
1565 */
1562
1563 /* We can return from the above running at a different
1564 * address, so recalculate r2 (TOC)
1565 */
1566 bl .relative_toc
1566 bl relative_toc
1567
1568 /* Init global core bits */
1567
1568 /* Init global core bits */
15692: bl .init_core_book3e
15692: bl init_core_book3e
1570
1571 /* Init per-thread bits */
1570
1571 /* Init per-thread bits */
15723: bl .init_thread_book3e
15723: bl init_thread_book3e
1573
1574 /* Return to common init code at proper virtual address.
1575 *
1576 * Due to various previous assumptions, we know we entered this
1577 * function at either the final PAGE_OFFSET mapping or using a
1578 * 1:1 mapping at 0, so we don't bother doing a complicated check
1579 * here, we just ensure the return address has the right top bits.
1580 *

--- 86 unchanged lines hidden --- 		1573
1574 /* Return to common init code at proper virtual address.
1575 *
1576 * Due to various previous assumptions, we know we entered this
1577 * function at either the final PAGE_OFFSET mapping or using a
1578 * 1:1 mapping at 0, so we don't bother doing a complicated check
1579 * here, we just ensure the return address has the right top bits.
1580 *

--- 86 unchanged lines hidden ---