| exceptions-64s.S (9daf112bd41ee9ca24a9a87adc70f70400a2ba5b) | exceptions-64s.S (0869b6fd209bda402576a9a559120ddd4f61198e) |
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| 1/* 2 * This file contains the 64-bit "server" PowerPC variant 3 * of the low level exception handling including exception 4 * vectors, exception return, part of the slb and stab 5 * handling and other fixed offset specific things. 6 * 7 * This file is meant to be #included from head_64.S due to 8 * position dependent assembly. --- 321 unchanged lines hidden (view full) --- 330 SET_SCRATCH0(r13) 331 EXCEPTION_PROLOG_0(PACA_EXGEN) 332 b emulation_assist_hv 333 334 . = 0xe60 335hv_exception_trampoline: 336 SET_SCRATCH0(r13) 337 EXCEPTION_PROLOG_0(PACA_EXGEN) | 1/* 2 * This file contains the 64-bit "server" PowerPC variant 3 * of the low level exception handling including exception 4 * vectors, exception return, part of the slb and stab 5 * handling and other fixed offset specific things. 6 * 7 * This file is meant to be #included from head_64.S due to 8 * position dependent assembly. --- 321 unchanged lines hidden (view full) --- 330 SET_SCRATCH0(r13) 331 EXCEPTION_PROLOG_0(PACA_EXGEN) 332 b emulation_assist_hv 333 334 . = 0xe60 335hv_exception_trampoline: 336 SET_SCRATCH0(r13) 337 EXCEPTION_PROLOG_0(PACA_EXGEN) |
| 338 b hmi_exception_hv | 338 b hmi_exception_early |
| 339 340 . = 0xe80 341hv_doorbell_trampoline: 342 SET_SCRATCH0(r13) 343 EXCEPTION_PROLOG_0(PACA_EXGEN) 344 b h_doorbell_hv 345 346 /* We need to deal with the Altivec unavailable exception --- 237 unchanged lines hidden (view full) --- 584 .align 7 585 /* moved from 0xe00 */ 586 STD_EXCEPTION_HV_OOL(0xe02, h_data_storage) 587 KVM_HANDLER_SKIP(PACA_EXGEN, EXC_HV, 0xe02) 588 STD_EXCEPTION_HV_OOL(0xe22, h_instr_storage) 589 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe22) 590 STD_EXCEPTION_HV_OOL(0xe42, emulation_assist) 591 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe42) | 339 340 . = 0xe80 341hv_doorbell_trampoline: 342 SET_SCRATCH0(r13) 343 EXCEPTION_PROLOG_0(PACA_EXGEN) 344 b h_doorbell_hv 345 346 /* We need to deal with the Altivec unavailable exception --- 237 unchanged lines hidden (view full) --- 584 .align 7 585 /* moved from 0xe00 */ 586 STD_EXCEPTION_HV_OOL(0xe02, h_data_storage) 587 KVM_HANDLER_SKIP(PACA_EXGEN, EXC_HV, 0xe02) 588 STD_EXCEPTION_HV_OOL(0xe22, h_instr_storage) 589 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe22) 590 STD_EXCEPTION_HV_OOL(0xe42, emulation_assist) 591 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe42) |
| 592 STD_EXCEPTION_HV_OOL(0xe62, hmi_exception) /* need to flush cache ? */ | 592 MASKABLE_EXCEPTION_HV_OOL(0xe62, hmi_exception) |
| 593 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe62) | 593 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe62) |
| 594 595 .globl hmi_exception_early 596hmi_exception_early: 597 EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0xe60) 598 mr r10,r1 /* Save r1 */ 599 ld r1,PACAEMERGSP(r13) /* Use emergency stack */ 600 subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */ 601 std r9,_CCR(r1) /* save CR in stackframe */ 602 mfspr r11,SPRN_HSRR0 /* Save HSRR0 */ 603 std r11,_NIP(r1) /* save HSRR0 in stackframe */ 604 mfspr r12,SPRN_HSRR1 /* Save SRR1 */ 605 std r12,_MSR(r1) /* save SRR1 in stackframe */ 606 std r10,0(r1) /* make stack chain pointer */ 607 std r0,GPR0(r1) /* save r0 in stackframe */ 608 std r10,GPR1(r1) /* save r1 in stackframe */ 609 EXCEPTION_PROLOG_COMMON_2(PACA_EXGEN) 610 EXCEPTION_PROLOG_COMMON_3(0xe60) 611 addi r3,r1,STACK_FRAME_OVERHEAD 612 bl hmi_exception_realmode 613 /* Windup the stack. */ 614 /* Clear MSR_RI before setting SRR0 and SRR1. */ 615 li r0,MSR_RI 616 mfmsr r9 /* get MSR value */ 617 andc r9,r9,r0 618 mtmsrd r9,1 /* Clear MSR_RI */ 619 /* Move original HSRR0 and HSRR1 into the respective regs */ 620 ld r9,_MSR(r1) 621 mtspr SPRN_HSRR1,r9 622 ld r3,_NIP(r1) 623 mtspr SPRN_HSRR0,r3 624 ld r9,_CTR(r1) 625 mtctr r9 626 ld r9,_XER(r1) 627 mtxer r9 628 ld r9,_LINK(r1) 629 mtlr r9 630 REST_GPR(0, r1) 631 REST_8GPRS(2, r1) 632 REST_GPR(10, r1) 633 ld r11,_CCR(r1) 634 mtcr r11 635 REST_GPR(11, r1) 636 REST_2GPRS(12, r1) 637 /* restore original r1. */ 638 ld r1,GPR1(r1) 639 640 /* 641 * Go to virtual mode and pull the HMI event information from 642 * firmware. 643 */ 644 .globl hmi_exception_after_realmode 645hmi_exception_after_realmode: 646 SET_SCRATCH0(r13) 647 EXCEPTION_PROLOG_0(PACA_EXGEN) 648 b hmi_exception_hv 649 |
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| 594 MASKABLE_EXCEPTION_HV_OOL(0xe82, h_doorbell) 595 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe82) 596 597 /* moved from 0xf00 */ 598 STD_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor) 599 KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf00) 600 STD_EXCEPTION_PSERIES_OOL(0xf20, altivec_unavailable) 601 KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf20) --- 4 unchanged lines hidden (view full) --- 606 STD_EXCEPTION_HV_OOL(0xf82, facility_unavailable) 607 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xf82) 608 609/* 610 * An interrupt came in while soft-disabled. We set paca->irq_happened, then: 611 * - If it was a decrementer interrupt, we bump the dec to max and and return. 612 * - If it was a doorbell we return immediately since doorbells are edge 613 * triggered and won't automatically refire. | 650 MASKABLE_EXCEPTION_HV_OOL(0xe82, h_doorbell) 651 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe82) 652 653 /* moved from 0xf00 */ 654 STD_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor) 655 KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf00) 656 STD_EXCEPTION_PSERIES_OOL(0xf20, altivec_unavailable) 657 KVM_HANDLER_PR(PACA_EXGEN, EXC_STD, 0xf20) --- 4 unchanged lines hidden (view full) --- 662 STD_EXCEPTION_HV_OOL(0xf82, facility_unavailable) 663 KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xf82) 664 665/* 666 * An interrupt came in while soft-disabled. We set paca->irq_happened, then: 667 * - If it was a decrementer interrupt, we bump the dec to max and and return. 668 * - If it was a doorbell we return immediately since doorbells are edge 669 * triggered and won't automatically refire. |
| 670 * - If it was a HMI we return immediately since we handled it in realmode 671 * and it won't refire. |
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| 614 * - else we hard disable and return. 615 * This is called with r10 containing the value to OR to the paca field. 616 */ 617#define MASKED_INTERRUPT(_H) \ 618masked_##_H##interrupt: \ 619 std r11,PACA_EXGEN+EX_R11(r13); \ 620 lbz r11,PACAIRQHAPPENED(r13); \ 621 or r11,r11,r10; \ 622 stb r11,PACAIRQHAPPENED(r13); \ 623 cmpwi r10,PACA_IRQ_DEC; \ 624 bne 1f; \ 625 lis r10,0x7fff; \ 626 ori r10,r10,0xffff; \ 627 mtspr SPRN_DEC,r10; \ 628 b 2f; \ 6291: cmpwi r10,PACA_IRQ_DBELL; \ 630 beq 2f; \ | 672 * - else we hard disable and return. 673 * This is called with r10 containing the value to OR to the paca field. 674 */ 675#define MASKED_INTERRUPT(_H) \ 676masked_##_H##interrupt: \ 677 std r11,PACA_EXGEN+EX_R11(r13); \ 678 lbz r11,PACAIRQHAPPENED(r13); \ 679 or r11,r11,r10; \ 680 stb r11,PACAIRQHAPPENED(r13); \ 681 cmpwi r10,PACA_IRQ_DEC; \ 682 bne 1f; \ 683 lis r10,0x7fff; \ 684 ori r10,r10,0xffff; \ 685 mtspr SPRN_DEC,r10; \ 686 b 2f; \ 6871: cmpwi r10,PACA_IRQ_DBELL; \ 688 beq 2f; \ |
| 689 cmpwi r10,PACA_IRQ_HMI; \ 690 beq 2f; \ |
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| 631 mfspr r10,SPRN_##_H##SRR1; \ 632 rldicl r10,r10,48,1; /* clear MSR_EE */ \ 633 rotldi r10,r10,16; \ 634 mtspr SPRN_##_H##SRR1,r10; \ 6352: mtcrf 0x80,r9; \ 636 ld r9,PACA_EXGEN+EX_R9(r13); \ 637 ld r10,PACA_EXGEN+EX_R10(r13); \ 638 ld r11,PACA_EXGEN+EX_R11(r13); \ --- 123 unchanged lines hidden (view full) --- 762 STD_EXCEPTION_COMMON_ASYNC(0xa00, doorbell_super, doorbell_exception) 763#else 764 STD_EXCEPTION_COMMON_ASYNC(0xa00, doorbell_super, unknown_exception) 765#endif 766 STD_EXCEPTION_COMMON(0xb00, trap_0b, unknown_exception) 767 STD_EXCEPTION_COMMON(0xd00, single_step, single_step_exception) 768 STD_EXCEPTION_COMMON(0xe00, trap_0e, unknown_exception) 769 STD_EXCEPTION_COMMON(0xe40, emulation_assist, emulation_assist_interrupt) | 691 mfspr r10,SPRN_##_H##SRR1; \ 692 rldicl r10,r10,48,1; /* clear MSR_EE */ \ 693 rotldi r10,r10,16; \ 694 mtspr SPRN_##_H##SRR1,r10; \ 6952: mtcrf 0x80,r9; \ 696 ld r9,PACA_EXGEN+EX_R9(r13); \ 697 ld r10,PACA_EXGEN+EX_R10(r13); \ 698 ld r11,PACA_EXGEN+EX_R11(r13); \ --- 123 unchanged lines hidden (view full) --- 822 STD_EXCEPTION_COMMON_ASYNC(0xa00, doorbell_super, doorbell_exception) 823#else 824 STD_EXCEPTION_COMMON_ASYNC(0xa00, doorbell_super, unknown_exception) 825#endif 826 STD_EXCEPTION_COMMON(0xb00, trap_0b, unknown_exception) 827 STD_EXCEPTION_COMMON(0xd00, single_step, single_step_exception) 828 STD_EXCEPTION_COMMON(0xe00, trap_0e, unknown_exception) 829 STD_EXCEPTION_COMMON(0xe40, emulation_assist, emulation_assist_interrupt) |
| 770 STD_EXCEPTION_COMMON(0xe60, hmi_exception, unknown_exception) | 830 STD_EXCEPTION_COMMON_ASYNC(0xe60, hmi_exception, handle_hmi_exception) |
| 771#ifdef CONFIG_PPC_DOORBELL 772 STD_EXCEPTION_COMMON_ASYNC(0xe80, h_doorbell, doorbell_exception) 773#else 774 STD_EXCEPTION_COMMON_ASYNC(0xe80, h_doorbell, unknown_exception) 775#endif 776 STD_EXCEPTION_COMMON_ASYNC(0xf00, performance_monitor, performance_monitor_exception) 777 STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, instruction_breakpoint_exception) 778 STD_EXCEPTION_COMMON(0x1502, denorm, unknown_exception) --- 860 unchanged lines hidden --- | 831#ifdef CONFIG_PPC_DOORBELL 832 STD_EXCEPTION_COMMON_ASYNC(0xe80, h_doorbell, doorbell_exception) 833#else 834 STD_EXCEPTION_COMMON_ASYNC(0xe80, h_doorbell, unknown_exception) 835#endif 836 STD_EXCEPTION_COMMON_ASYNC(0xf00, performance_monitor, performance_monitor_exception) 837 STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, instruction_breakpoint_exception) 838 STD_EXCEPTION_COMMON(0x1502, denorm, unknown_exception) --- 860 unchanged lines hidden --- |