#ifndef _ASM_POWERPC_EXCEPTION_H #define _ASM_POWERPC_EXCEPTION_H /* * Extracted from head_64.S * * PowerPC version * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) * * Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP * Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu> * Adapted for Power Macintosh by Paul Mackerras. * Low-level exception handlers and MMU support * rewritten by Paul Mackerras. * Copyright (C) 1996 Paul Mackerras. * * Adapted for 64bit PowerPC by Dave Engebretsen, Peter Bergner, and * Mike Corrigan {engebret|bergner|mikejc}@us.ibm.com * * This file contains the low-level support and setup for the * PowerPC-64 platform, including trap and interrupt dispatch. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ /* * The following macros define the code that appears as * the prologue to each of the exception handlers. They * are split into two parts to allow a single kernel binary * to be used for pSeries and iSeries. * * We make as much of the exception code common between native * exception handlers (including pSeries LPAR) and iSeries LPAR * implementations as possible. */ #include <asm/head-64.h> /* PACA save area offsets (exgen, exmc, etc) */ #define EX_R9 0 #define EX_R10 8 #define EX_R11 16 #define EX_R12 24 #define EX_R13 32 #define EX_DAR 40 #define EX_DSISR 48 #define EX_CCR 52 #define EX_CFAR 56 #define EX_PPR 64 #if defined(CONFIG_RELOCATABLE) #define EX_CTR 72 #define EX_SIZE 10 /* size in u64 units */ #else #define EX_SIZE 9 /* size in u64 units */ #endif /* * maximum recursive depth of MCE exceptions */ #define MAX_MCE_DEPTH 4 /* * EX_LR is only used in EXSLB and where it does not overlap with EX_DAR * EX_CCR similarly with DSISR, but being 4 byte registers there is a hole * in the save area so it's not necessary to overlap them. Could be used * for future savings though if another 4 byte register was to be saved. */ #define EX_LR EX_DAR /* * EX_R3 is only used by the bad_stack handler. bad_stack reloads and * saves DAR from SPRN_DAR, and EX_DAR is not used. So EX_R3 can overlap * with EX_DAR. */ #define EX_R3 EX_DAR #define STF_ENTRY_BARRIER_SLOT \ STF_ENTRY_BARRIER_FIXUP_SECTION; \ nop; \ nop; \ nop #define STF_EXIT_BARRIER_SLOT \ STF_EXIT_BARRIER_FIXUP_SECTION; \ nop; \ nop; \ nop; \ nop; \ nop; \ nop #define ENTRY_FLUSH_SLOT \ ENTRY_FLUSH_FIXUP_SECTION; \ nop; \ nop; \ nop; /* * r10 must be free to use, r13 must be paca */ #define INTERRUPT_TO_KERNEL \ STF_ENTRY_BARRIER_SLOT; \ ENTRY_FLUSH_SLOT /* * Macros for annotating the expected destination of (h)rfid * * The nop instructions allow us to insert one or more instructions to flush the * L1-D cache when returning to userspace or a guest. */ #define RFI_FLUSH_SLOT \ RFI_FLUSH_FIXUP_SECTION; \ nop; \ nop; \ nop #define RFI_TO_KERNEL \ rfid #define RFI_TO_USER \ STF_EXIT_BARRIER_SLOT; \ RFI_FLUSH_SLOT; \ rfid; \ b rfi_flush_fallback #define RFI_TO_USER_OR_KERNEL \ STF_EXIT_BARRIER_SLOT; \ RFI_FLUSH_SLOT; \ rfid; \ b rfi_flush_fallback #define RFI_TO_GUEST \ STF_EXIT_BARRIER_SLOT; \ RFI_FLUSH_SLOT; \ rfid; \ b rfi_flush_fallback #define HRFI_TO_KERNEL \ hrfid #define HRFI_TO_USER \ STF_EXIT_BARRIER_SLOT; \ RFI_FLUSH_SLOT; \ hrfid; \ b hrfi_flush_fallback #define HRFI_TO_USER_OR_KERNEL \ STF_EXIT_BARRIER_SLOT; \ RFI_FLUSH_SLOT; \ hrfid; \ b hrfi_flush_fallback #define HRFI_TO_GUEST \ STF_EXIT_BARRIER_SLOT; \ RFI_FLUSH_SLOT; \ hrfid; \ b hrfi_flush_fallback #define HRFI_TO_UNKNOWN \ STF_EXIT_BARRIER_SLOT; \ RFI_FLUSH_SLOT; \ hrfid; \ b hrfi_flush_fallback #ifdef CONFIG_RELOCATABLE #define __EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \ mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \ LOAD_HANDLER(r12,label); \ mtctr r12; \ mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \ li r10,MSR_RI; \ mtmsrd r10,1; /* Set RI (EE=0) */ \ bctr; #else /* If not relocatable, we can jump directly -- and save messing with LR */ #define __EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \ mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \ mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \ li r10,MSR_RI; \ mtmsrd r10,1; /* Set RI (EE=0) */ \ b label; #endif #define EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \ __EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) \ /* * As EXCEPTION_PROLOG_PSERIES(), except we've already got relocation on * so no need to rfid. Save lr in case we're CONFIG_RELOCATABLE, in which * case EXCEPTION_RELON_PROLOG_PSERIES_1 will be using lr. */ #define EXCEPTION_RELON_PROLOG_PSERIES(area, label, h, extra, vec) \ EXCEPTION_PROLOG_0(area); \ EXCEPTION_PROLOG_1(area, extra, vec); \ EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) /* * We're short on space and time in the exception prolog, so we can't * use the normal LOAD_REG_IMMEDIATE macro to load the address of label. * Instead we get the base of the kernel from paca->kernelbase and or in the low * part of label. This requires that the label be within 64KB of kernelbase, and * that kernelbase be 64K aligned. */ #define LOAD_HANDLER(reg, label) \ ld reg,PACAKBASE(r13); /* get high part of &label */ \ ori reg,reg,FIXED_SYMBOL_ABS_ADDR(label); #define __LOAD_HANDLER(reg, label) \ ld reg,PACAKBASE(r13); \ ori reg,reg,(ABS_ADDR(label))@l; /* * Branches from unrelocated code (e.g., interrupts) to labels outside * head-y require >64K offsets. */ #define __LOAD_FAR_HANDLER(reg, label) \ ld reg,PACAKBASE(r13); \ ori reg,reg,(ABS_ADDR(label))@l; \ addis reg,reg,(ABS_ADDR(label))@h; /* Exception register prefixes */ #define EXC_HV H #define EXC_STD #if defined(CONFIG_RELOCATABLE) /* * If we support interrupts with relocation on AND we're a relocatable kernel, * we need to use CTR to get to the 2nd level handler. So, save/restore it * when required. */ #define SAVE_CTR(reg, area) mfctr reg ; std reg,area+EX_CTR(r13) #define GET_CTR(reg, area) ld reg,area+EX_CTR(r13) #define RESTORE_CTR(reg, area) ld reg,area+EX_CTR(r13) ; mtctr reg #else /* ...else CTR is unused and in register. */ #define SAVE_CTR(reg, area) #define GET_CTR(reg, area) mfctr reg #define RESTORE_CTR(reg, area) #endif /* * PPR save/restore macros used in exceptions_64s.S * Used for P7 or later processors */ #define SAVE_PPR(area, ra, rb) \ BEGIN_FTR_SECTION_NESTED(940) \ ld ra,PACACURRENT(r13); \ ld rb,area+EX_PPR(r13); /* Read PPR from paca */ \ std rb,TASKTHREADPPR(ra); \ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,940) #define RESTORE_PPR_PACA(area, ra) \ BEGIN_FTR_SECTION_NESTED(941) \ ld ra,area+EX_PPR(r13); \ mtspr SPRN_PPR,ra; \ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,941) /* * Get an SPR into a register if the CPU has the given feature */ #define OPT_GET_SPR(ra, spr, ftr) \ BEGIN_FTR_SECTION_NESTED(943) \ mfspr ra,spr; \ END_FTR_SECTION_NESTED(ftr,ftr,943) /* * Set an SPR from a register if the CPU has the given feature */ #define OPT_SET_SPR(ra, spr, ftr) \ BEGIN_FTR_SECTION_NESTED(943) \ mtspr spr,ra; \ END_FTR_SECTION_NESTED(ftr,ftr,943) /* * Save a register to the PACA if the CPU has the given feature */ #define OPT_SAVE_REG_TO_PACA(offset, ra, ftr) \ BEGIN_FTR_SECTION_NESTED(943) \ std ra,offset(r13); \ END_FTR_SECTION_NESTED(ftr,ftr,943) #define EXCEPTION_PROLOG_0(area) \ GET_PACA(r13); \ std r9,area+EX_R9(r13); /* save r9 */ \ OPT_GET_SPR(r9, SPRN_PPR, CPU_FTR_HAS_PPR); \ HMT_MEDIUM; \ std r10,area+EX_R10(r13); /* save r10 - r12 */ \ OPT_GET_SPR(r10, SPRN_CFAR, CPU_FTR_CFAR) #define __EXCEPTION_PROLOG_1(area, extra, vec) \ OPT_SAVE_REG_TO_PACA(area+EX_PPR, r9, CPU_FTR_HAS_PPR); \ OPT_SAVE_REG_TO_PACA(area+EX_CFAR, r10, CPU_FTR_CFAR); \ INTERRUPT_TO_KERNEL; \ SAVE_CTR(r10, area); \ mfcr r9; \ extra(vec); \ std r11,area+EX_R11(r13); \ std r12,area+EX_R12(r13); \ GET_SCRATCH0(r10); \ std r10,area+EX_R13(r13) #define EXCEPTION_PROLOG_1(area, extra, vec) \ __EXCEPTION_PROLOG_1(area, extra, vec) #define __EXCEPTION_PROLOG_PSERIES_1(label, h) \ ld r10,PACAKMSR(r13); /* get MSR value for kernel */ \ mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \ LOAD_HANDLER(r12,label) \ mtspr SPRN_##h##SRR0,r12; \ mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \ mtspr SPRN_##h##SRR1,r10; \ h##RFI_TO_KERNEL; \ b . /* prevent speculative execution */ #define EXCEPTION_PROLOG_PSERIES_1(label, h) \ __EXCEPTION_PROLOG_PSERIES_1(label, h) /* _NORI variant keeps MSR_RI clear */ #define __EXCEPTION_PROLOG_PSERIES_1_NORI(label, h) \ ld r10,PACAKMSR(r13); /* get MSR value for kernel */ \ xori r10,r10,MSR_RI; /* Clear MSR_RI */ \ mfspr r11,SPRN_##h##SRR0; /* save SRR0 */ \ LOAD_HANDLER(r12,label) \ mtspr SPRN_##h##SRR0,r12; \ mfspr r12,SPRN_##h##SRR1; /* and SRR1 */ \ mtspr SPRN_##h##SRR1,r10; \ h##RFI_TO_KERNEL; \ b . /* prevent speculative execution */ #define EXCEPTION_PROLOG_PSERIES_1_NORI(label, h) \ __EXCEPTION_PROLOG_PSERIES_1_NORI(label, h) #define EXCEPTION_PROLOG_PSERIES(area, label, h, extra, vec) \ EXCEPTION_PROLOG_0(area); \ EXCEPTION_PROLOG_1(area, extra, vec); \ EXCEPTION_PROLOG_PSERIES_1(label, h); #define __KVMTEST(h, n) \ lbz r10,HSTATE_IN_GUEST(r13); \ cmpwi r10,0; \ bne do_kvm_##h##n #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE /* * If hv is possible, interrupts come into to the hv version * of the kvmppc_interrupt code, which then jumps to the PR handler, * kvmppc_interrupt_pr, if the guest is a PR guest. */ #define kvmppc_interrupt kvmppc_interrupt_hv #else #define kvmppc_interrupt kvmppc_interrupt_pr #endif /* * Branch to label using its 0xC000 address. This results in instruction * address suitable for MSR[IR]=0 or 1, which allows relocation to be turned * on using mtmsr rather than rfid. * * This could set the 0xc bits for !RELOCATABLE as an immediate, rather than * load KBASE for a slight optimisation. */ #define BRANCH_TO_C000(reg, label) \ __LOAD_HANDLER(reg, label); \ mtctr reg; \ bctr #ifdef CONFIG_RELOCATABLE #define BRANCH_TO_COMMON(reg, label) \ __LOAD_HANDLER(reg, label); \ mtctr reg; \ bctr #define BRANCH_LINK_TO_FAR(label) \ __LOAD_FAR_HANDLER(r12, label); \ mtctr r12; \ bctrl /* * KVM requires __LOAD_FAR_HANDLER. * * __BRANCH_TO_KVM_EXIT branches are also a special case because they * explicitly use r9 then reload it from PACA before branching. Hence * the double-underscore. */ #define __BRANCH_TO_KVM_EXIT(area, label) \ mfctr r9; \ std r9,HSTATE_SCRATCH1(r13); \ __LOAD_FAR_HANDLER(r9, label); \ mtctr r9; \ ld r9,area+EX_R9(r13); \ bctr #else #define BRANCH_TO_COMMON(reg, label) \ b label #define BRANCH_LINK_TO_FAR(label) \ bl label #define __BRANCH_TO_KVM_EXIT(area, label) \ ld r9,area+EX_R9(r13); \ b label #endif /* Do not enable RI */ #define EXCEPTION_PROLOG_PSERIES_NORI(area, label, h, extra, vec) \ EXCEPTION_PROLOG_0(area); \ EXCEPTION_PROLOG_1(area, extra, vec); \ EXCEPTION_PROLOG_PSERIES_1_NORI(label, h); #define __KVM_HANDLER(area, h, n) \ BEGIN_FTR_SECTION_NESTED(947) \ ld r10,area+EX_CFAR(r13); \ std r10,HSTATE_CFAR(r13); \ END_FTR_SECTION_NESTED(CPU_FTR_CFAR,CPU_FTR_CFAR,947); \ BEGIN_FTR_SECTION_NESTED(948) \ ld r10,area+EX_PPR(r13); \ std r10,HSTATE_PPR(r13); \ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948); \ ld r10,area+EX_R10(r13); \ std r12,HSTATE_SCRATCH0(r13); \ sldi r12,r9,32; \ ori r12,r12,(n); \ /* This reloads r9 before branching to kvmppc_interrupt */ \ __BRANCH_TO_KVM_EXIT(area, kvmppc_interrupt) #define __KVM_HANDLER_SKIP(area, h, n) \ cmpwi r10,KVM_GUEST_MODE_SKIP; \ beq 89f; \ BEGIN_FTR_SECTION_NESTED(948) \ ld r10,area+EX_PPR(r13); \ std r10,HSTATE_PPR(r13); \ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948); \ ld r10,area+EX_R10(r13); \ std r12,HSTATE_SCRATCH0(r13); \ sldi r12,r9,32; \ ori r12,r12,(n); \ /* This reloads r9 before branching to kvmppc_interrupt */ \ __BRANCH_TO_KVM_EXIT(area, kvmppc_interrupt); \ 89: mtocrf 0x80,r9; \ ld r9,area+EX_R9(r13); \ ld r10,area+EX_R10(r13); \ b kvmppc_skip_##h##interrupt #ifdef CONFIG_KVM_BOOK3S_64_HANDLER #define KVMTEST(h, n) __KVMTEST(h, n) #define KVM_HANDLER(area, h, n) __KVM_HANDLER(area, h, n) #define KVM_HANDLER_SKIP(area, h, n) __KVM_HANDLER_SKIP(area, h, n) #else #define KVMTEST(h, n) #define KVM_HANDLER(area, h, n) #define KVM_HANDLER_SKIP(area, h, n) #endif #define NOTEST(n) #define EXCEPTION_PROLOG_COMMON_1() \ std r9,_CCR(r1); /* save CR in stackframe */ \ std r11,_NIP(r1); /* save SRR0 in stackframe */ \ std r12,_MSR(r1); /* save SRR1 in stackframe */ \ std r10,0(r1); /* make stack chain pointer */ \ std r0,GPR0(r1); /* save r0 in stackframe */ \ std r10,GPR1(r1); /* save r1 in stackframe */ \ /* * The common exception prolog is used for all except a few exceptions * such as a segment miss on a kernel address. We have to be prepared * to take another exception from the point where we first touch the * kernel stack onwards. * * On entry r13 points to the paca, r9-r13 are saved in the paca, * r9 contains the saved CR, r11 and r12 contain the saved SRR0 and * SRR1, and relocation is on. */ #define EXCEPTION_PROLOG_COMMON(n, area) \ andi. r10,r12,MSR_PR; /* See if coming from user */ \ mr r10,r1; /* Save r1 */ \ subi r1,r1,INT_FRAME_SIZE; /* alloc frame on kernel stack */ \ beq- 1f; \ ld r1,PACAKSAVE(r13); /* kernel stack to use */ \ 1: cmpdi cr1,r1,-INT_FRAME_SIZE; /* check if r1 is in userspace */ \ blt+ cr1,3f; /* abort if it is */ \ li r1,(n); /* will be reloaded later */ \ sth r1,PACA_TRAP_SAVE(r13); \ std r3,area+EX_R3(r13); \ addi r3,r13,area; /* r3 -> where regs are saved*/ \ RESTORE_CTR(r1, area); \ b bad_stack; \ 3: EXCEPTION_PROLOG_COMMON_1(); \ beq 4f; /* if from kernel mode */ \ ACCOUNT_CPU_USER_ENTRY(r13, r9, r10); \ SAVE_PPR(area, r9, r10); \ 4: EXCEPTION_PROLOG_COMMON_2(area) \ EXCEPTION_PROLOG_COMMON_3(n) \ ACCOUNT_STOLEN_TIME /* Save original regs values from save area to stack frame. */ #define EXCEPTION_PROLOG_COMMON_2(area) \ ld r9,area+EX_R9(r13); /* move r9, r10 to stackframe */ \ ld r10,area+EX_R10(r13); \ std r9,GPR9(r1); \ std r10,GPR10(r1); \ ld r9,area+EX_R11(r13); /* move r11 - r13 to stackframe */ \ ld r10,area+EX_R12(r13); \ ld r11,area+EX_R13(r13); \ std r9,GPR11(r1); \ std r10,GPR12(r1); \ std r11,GPR13(r1); \ BEGIN_FTR_SECTION_NESTED(66); \ ld r10,area+EX_CFAR(r13); \ std r10,ORIG_GPR3(r1); \ END_FTR_SECTION_NESTED(CPU_FTR_CFAR, CPU_FTR_CFAR, 66); \ GET_CTR(r10, area); \ std r10,_CTR(r1); #define EXCEPTION_PROLOG_COMMON_3(n) \ std r2,GPR2(r1); /* save r2 in stackframe */ \ SAVE_4GPRS(3, r1); /* save r3 - r6 in stackframe */ \ SAVE_2GPRS(7, r1); /* save r7, r8 in stackframe */ \ mflr r9; /* Get LR, later save to stack */ \ ld r2,PACATOC(r13); /* get kernel TOC into r2 */ \ std r9,_LINK(r1); \ lbz r10,PACASOFTIRQEN(r13); \ mfspr r11,SPRN_XER; /* save XER in stackframe */ \ std r10,SOFTE(r1); \ std r11,_XER(r1); \ li r9,(n)+1; \ std r9,_TRAP(r1); /* set trap number */ \ li r10,0; \ ld r11,exception_marker@toc(r2); \ std r10,RESULT(r1); /* clear regs->result */ \ std r11,STACK_FRAME_OVERHEAD-16(r1); /* mark the frame */ /* * Exception vectors. */ #define STD_EXCEPTION_PSERIES(vec, label) \ SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label, \ EXC_STD, KVMTEST_PR, vec); \ /* Version of above for when we have to branch out-of-line */ #define __OOL_EXCEPTION(vec, label, hdlr) \ SET_SCRATCH0(r13) \ EXCEPTION_PROLOG_0(PACA_EXGEN) \ b hdlr; #define STD_EXCEPTION_PSERIES_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_PR, vec); \ EXCEPTION_PROLOG_PSERIES_1(label, EXC_STD) #define STD_EXCEPTION_HV(loc, vec, label) \ SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label, \ EXC_HV, KVMTEST_HV, vec); #define STD_EXCEPTION_HV_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_HV, vec); \ EXCEPTION_PROLOG_PSERIES_1(label, EXC_HV) #define STD_RELON_EXCEPTION_PSERIES(loc, vec, label) \ /* No guest interrupts come through here */ \ SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_RELON_PROLOG_PSERIES(PACA_EXGEN, label, EXC_STD, NOTEST, vec); #define STD_RELON_EXCEPTION_PSERIES_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, vec); \ EXCEPTION_RELON_PROLOG_PSERIES_1(label, EXC_STD) #define STD_RELON_EXCEPTION_HV(loc, vec, label) \ SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_RELON_PROLOG_PSERIES(PACA_EXGEN, label, \ EXC_HV, KVMTEST_HV, vec); #define STD_RELON_EXCEPTION_HV_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST_HV, vec); \ EXCEPTION_RELON_PROLOG_PSERIES_1(label, EXC_HV) /* This associate vector numbers with bits in paca->irq_happened */ #define SOFTEN_VALUE_0x500 PACA_IRQ_EE #define SOFTEN_VALUE_0x900 PACA_IRQ_DEC #define SOFTEN_VALUE_0x980 PACA_IRQ_DEC #define SOFTEN_VALUE_0xa00 PACA_IRQ_DBELL #define SOFTEN_VALUE_0xe80 PACA_IRQ_DBELL #define SOFTEN_VALUE_0xe60 PACA_IRQ_HMI #define SOFTEN_VALUE_0xea0 PACA_IRQ_EE #define __SOFTEN_TEST(h, vec) \ lbz r10,PACASOFTIRQEN(r13); \ cmpwi r10,0; \ li r10,SOFTEN_VALUE_##vec; \ beq masked_##h##interrupt #define _SOFTEN_TEST(h, vec) __SOFTEN_TEST(h, vec) #define SOFTEN_TEST_PR(vec) \ KVMTEST(EXC_STD, vec); \ _SOFTEN_TEST(EXC_STD, vec) #define SOFTEN_TEST_HV(vec) \ KVMTEST(EXC_HV, vec); \ _SOFTEN_TEST(EXC_HV, vec) #define KVMTEST_PR(vec) \ KVMTEST(EXC_STD, vec) #define KVMTEST_HV(vec) \ KVMTEST(EXC_HV, vec) #define SOFTEN_NOTEST_PR(vec) _SOFTEN_TEST(EXC_STD, vec) #define SOFTEN_NOTEST_HV(vec) _SOFTEN_TEST(EXC_HV, vec) #define __MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra) \ SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_PROLOG_0(PACA_EXGEN); \ __EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec); \ EXCEPTION_PROLOG_PSERIES_1(label, h); #define _MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra) \ __MASKABLE_EXCEPTION_PSERIES(vec, label, h, extra) #define MASKABLE_EXCEPTION_PSERIES(loc, vec, label) \ _MASKABLE_EXCEPTION_PSERIES(vec, label, \ EXC_STD, SOFTEN_TEST_PR) #define MASKABLE_EXCEPTION_PSERIES_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_PR, vec); \ EXCEPTION_PROLOG_PSERIES_1(label, EXC_STD) #define MASKABLE_EXCEPTION_HV(loc, vec, label) \ _MASKABLE_EXCEPTION_PSERIES(vec, label, \ EXC_HV, SOFTEN_TEST_HV) #define MASKABLE_EXCEPTION_HV_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_HV, vec); \ EXCEPTION_PROLOG_PSERIES_1(label, EXC_HV) #define __MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) \ SET_SCRATCH0(r13); /* save r13 */ \ EXCEPTION_PROLOG_0(PACA_EXGEN); \ __EXCEPTION_PROLOG_1(PACA_EXGEN, extra, vec); \ EXCEPTION_RELON_PROLOG_PSERIES_1(label, h) #define _MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) \ __MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, h, extra) #define MASKABLE_RELON_EXCEPTION_PSERIES(loc, vec, label) \ _MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, \ EXC_STD, SOFTEN_NOTEST_PR) #define MASKABLE_RELON_EXCEPTION_HV(loc, vec, label) \ _MASKABLE_RELON_EXCEPTION_PSERIES(vec, label, \ EXC_HV, SOFTEN_TEST_HV) #define MASKABLE_RELON_EXCEPTION_HV_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_TEST_HV, vec); \ EXCEPTION_RELON_PROLOG_PSERIES_1(label, EXC_HV) #define MASKABLE_RELON_EXCEPTION_PSERIES_OOL(vec, label) \ EXCEPTION_PROLOG_1(PACA_EXGEN, SOFTEN_NOTEST_PR, vec); \ EXCEPTION_PROLOG_PSERIES_1(label, EXC_STD) /* * Our exception common code can be passed various "additions" * to specify the behaviour of interrupts, whether to kick the * runlatch, etc... */ /* * This addition reconciles our actual IRQ state with the various software * flags that track it. This may call C code. */ #define ADD_RECONCILE RECONCILE_IRQ_STATE(r10,r11) #define ADD_NVGPRS \ bl save_nvgprs #define RUNLATCH_ON \ BEGIN_FTR_SECTION \ CURRENT_THREAD_INFO(r3, r1); \ ld r4,TI_LOCAL_FLAGS(r3); \ andi. r0,r4,_TLF_RUNLATCH; \ beql ppc64_runlatch_on_trampoline; \ END_FTR_SECTION_IFSET(CPU_FTR_CTRL) #define EXCEPTION_COMMON(area, trap, label, hdlr, ret, additions) \ EXCEPTION_PROLOG_COMMON(trap, area); \ /* Volatile regs are potentially clobbered here */ \ additions; \ addi r3,r1,STACK_FRAME_OVERHEAD; \ bl hdlr; \ b ret /* * Exception where stack is already set in r1, r1 is saved in r10, and it * continues rather than returns. */ #define EXCEPTION_COMMON_NORET_STACK(area, trap, label, hdlr, additions) \ EXCEPTION_PROLOG_COMMON_1(); \ EXCEPTION_PROLOG_COMMON_2(area); \ EXCEPTION_PROLOG_COMMON_3(trap); \ /* Volatile regs are potentially clobbered here */ \ additions; \ addi r3,r1,STACK_FRAME_OVERHEAD; \ bl hdlr #define STD_EXCEPTION_COMMON(trap, label, hdlr) \ EXCEPTION_COMMON(PACA_EXGEN, trap, label, hdlr, \ ret_from_except, ADD_NVGPRS;ADD_RECONCILE) /* * Like STD_EXCEPTION_COMMON, but for exceptions that can occur * in the idle task and therefore need the special idle handling * (finish nap and runlatch) */ #define STD_EXCEPTION_COMMON_ASYNC(trap, label, hdlr) \ EXCEPTION_COMMON(PACA_EXGEN, trap, label, hdlr, \ ret_from_except_lite, FINISH_NAP;ADD_RECONCILE;RUNLATCH_ON) /* * When the idle code in power4_idle puts the CPU into NAP mode, * it has to do so in a loop, and relies on the external interrupt * and decrementer interrupt entry code to get it out of the loop. * It sets the _TLF_NAPPING bit in current_thread_info()->local_flags * to signal that it is in the loop and needs help to get out. */ #ifdef CONFIG_PPC_970_NAP #define FINISH_NAP \ BEGIN_FTR_SECTION \ CURRENT_THREAD_INFO(r11, r1); \ ld r9,TI_LOCAL_FLAGS(r11); \ andi. r10,r9,_TLF_NAPPING; \ bnel power4_fixup_nap; \ END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP) #else #define FINISH_NAP #endif #endif /* _ASM_POWERPC_EXCEPTION_H */
Name | Type | Size | Permission | Actions |
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book3s | Folder | 0755 |
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nohash | Folder | 0755 |
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8xx_immap.h | File | 13.77 KB | 0644 |
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Kbuild | File | 248 B | 0644 |
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accounting.h | File | 1 KB | 0644 |
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agp.h | File | 525 B | 0644 |
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archrandom.h | File | 1016 B | 0644 |
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asm-compat.h | File | 2.53 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 4.78 KB | 0644 |
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async_tx.h | File | 1.64 KB | 0644 |
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atomic.h | File | 13.57 KB | 0644 |
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backlight.h | File | 1.09 KB | 0644 |
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barrier.h | File | 3.57 KB | 0644 |
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bitops.h | File | 7.8 KB | 0644 |
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bootx.h | File | 1.12 KB | 0644 |
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btext.h | File | 926 B | 0644 |
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bug.h | File | 3.55 KB | 0644 |
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bugs.h | File | 486 B | 0644 |
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cache.h | File | 2.47 KB | 0644 |
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cacheflush.h | File | 3.76 KB | 0644 |
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cell-pmu.h | File | 4.04 KB | 0644 |
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cell-regs.h | File | 9.57 KB | 0644 |
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checksum.h | File | 5.85 KB | 0644 |
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cmpxchg.h | File | 12.16 KB | 0644 |
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code-patching-asm.h | File | 397 B | 0644 |
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code-patching.h | File | 5.01 KB | 0644 |
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compat.h | File | 6.26 KB | 0644 |
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context_tracking.h | File | 245 B | 0644 |
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copro.h | File | 769 B | 0644 |
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cpm.h | File | 5.09 KB | 0644 |
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cpm1.h | File | 21.08 KB | 0644 |
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cpm2.h | File | 48.43 KB | 0644 |
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cpu_has_feature.h | File | 1.31 KB | 0644 |
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cpufeature.h | File | 1.18 KB | 0644 |
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cpuidle.h | File | 3.31 KB | 0644 |
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cputable.h | File | 22.56 KB | 0644 |
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cputhreads.h | File | 2.92 KB | 0644 |
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cputime.h | File | 1.59 KB | 0644 |
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current.h | File | 835 B | 0644 |
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dbdma.h | File | 3.72 KB | 0644 |
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dbell.h | File | 2.78 KB | 0644 |
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dcr-generic.h | File | 1.58 KB | 0644 |
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dcr-mmio.h | File | 1.68 KB | 0644 |
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dcr-native.h | File | 4.42 KB | 0644 |
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dcr-regs.h | File | 5.71 KB | 0644 |
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dcr.h | File | 2.73 KB | 0644 |
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debug.h | File | 1.97 KB | 0644 |
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debugfs.h | File | 489 B | 0644 |
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delay.h | File | 3.42 KB | 0644 |
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device.h | File | 1.1 KB | 0644 |
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disassemble.h | File | 2.73 KB | 0644 |
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dma-mapping.h | File | 4.12 KB | 0644 |
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dma.h | File | 10.51 KB | 0644 |
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dt_cpu_ftrs.h | File | 816 B | 0644 |
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edac.h | File | 1.08 KB | 0644 |
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eeh.h | File | 14.44 KB | 0644 |
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eeh_event.h | File | 1.36 KB | 0644 |
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ehv_pic.h | File | 963 B | 0644 |
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elf.h | File | 6.29 KB | 0644 |
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emergency-restart.h | File | 43 B | 0644 |
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emulated_ops.h | File | 2.58 KB | 0644 |
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epapr_hcalls.h | File | 16.44 KB | 0644 |
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exception-64e.h | File | 7.21 KB | 0644 |
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exception-64s.h | File | 22.72 KB | 0644 |
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exec.h | File | 246 B | 0644 |
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extable.h | File | 904 B | 0644 |
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fadump.h | File | 6.1 KB | 0644 |
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fb.h | File | 483 B | 0644 |
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feature-fixups.h | File | 8.76 KB | 0644 |
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firmware.h | File | 4.71 KB | 0644 |
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fixmap.h | File | 2.33 KB | 0644 |
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floppy.h | File | 4.86 KB | 0644 |
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fs_pd.h | File | 1.02 KB | 0644 |
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fsl_85xx_cache_sram.h | File | 1.43 KB | 0644 |
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fsl_gtm.h | File | 1.38 KB | 0644 |
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fsl_hcalls.h | File | 17.2 KB | 0644 |
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fsl_lbc.h | File | 10.9 KB | 0644 |
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fsl_pamu_stash.h | File | 1.1 KB | 0644 |
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fsl_pm.h | File | 1.36 KB | 0644 |
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ftrace.h | File | 2.1 KB | 0644 |
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futex.h | File | 2.4 KB | 0644 |
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grackle.h | File | 331 B | 0644 |
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hardirq.h | File | 1.15 KB | 0644 |
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head-64.h | File | 13.86 KB | 0644 |
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heathrow.h | File | 2.53 KB | 0644 |
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highmem.h | File | 2.41 KB | 0644 |
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hmi.h | File | 1.49 KB | 0644 |
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hugetlb.h | File | 4.73 KB | 0644 |
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hvcall.h | File | 15.35 KB | 0644 |
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hvconsole.h | File | 1.37 KB | 0644 |
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hvcserver.h | File | 2.09 KB | 0644 |
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hvsi.h | File | 2.78 KB | 0644 |
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hw_breakpoint.h | File | 3.07 KB | 0644 |
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hw_irq.h | File | 5.24 KB | 0644 |
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hydra.h | File | 2.91 KB | 0644 |
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i8259.h | File | 361 B | 0644 |
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ibmebus.h | File | 2.15 KB | 0644 |
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icswx.h | File | 4.71 KB | 0644 |
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ide.h | File | 586 B | 0644 |
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ima.h | File | 772 B | 0644 |
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imc-pmu.h | File | 2.87 KB | 0644 |
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immap_cpm2.h | File | 10.5 KB | 0644 |
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io-defs.h | File | 3.09 KB | 0644 |
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io-workarounds.h | File | 1.54 KB | 0644 |
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io.h | File | 28.02 KB | 0644 |
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io_event_irq.h | File | 1.91 KB | 0644 |
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iommu.h | File | 10.16 KB | 0644 |
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ipic.h | File | 3.51 KB | 0644 |
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irq.h | File | 1.83 KB | 0644 |
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irq_work.h | File | 252 B | 0644 |
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irqflags.h | File | 1.7 KB | 0644 |
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isa-bridge.h | File | 654 B | 0644 |
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jump_label.h | File | 1.62 KB | 0644 |
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kdebug.h | File | 291 B | 0644 |
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kdump.h | File | 1.37 KB | 0644 |
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kexec.h | File | 4.02 KB | 0644 |
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keylargo.h | File | 10.8 KB | 0644 |
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kgdb.h | File | 2.06 KB | 0644 |
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kmap_types.h | File | 434 B | 0644 |
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kprobes.h | File | 3.75 KB | 0644 |
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kup.h | File | 1021 B | 0644 |
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kvm_asm.h | File | 5.46 KB | 0644 |
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kvm_book3s.h | File | 12.06 KB | 0644 |
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kvm_book3s_32.h | File | 1.39 KB | 0644 |
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kvm_book3s_64.h | File | 12.62 KB | 0644 |
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kvm_book3s_asm.h | File | 4.4 KB | 0644 |
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kvm_booke.h | File | 2.68 KB | 0644 |
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kvm_booke_hv_asm.h | File | 2.03 KB | 0644 |
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kvm_fpu.h | File | 2.74 KB | 0644 |
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kvm_host.h | File | 19.92 KB | 0644 |
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kvm_para.h | File | 1.49 KB | 0644 |
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kvm_ppc.h | File | 34.83 KB | 0644 |
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libata-portmap.h | File | 249 B | 0644 |
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linkage.h | File | 501 B | 0644 |
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livepatch.h | File | 1.65 KB | 0644 |
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local.h | File | 3.79 KB | 0644 |
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lppaca.h | File | 5.02 KB | 0644 |
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lv1call.h | File | 18.74 KB | 0644 |
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machdep.h | File | 9.7 KB | 0644 |
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macio.h | File | 3.89 KB | 0644 |
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mc146818rtc.h | File | 943 B | 0644 |
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mce.h | File | 5.58 KB | 0644 |
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mediabay.h | File | 1.34 KB | 0644 |
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mm-arch-hooks.h | File | 839 B | 0644 |
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mman.h | File | 1.33 KB | 0644 |
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mmu-40x.h | File | 1.94 KB | 0644 |
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mmu-44x.h | File | 5.56 KB | 0644 |
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mmu-8xx.h | File | 8.6 KB | 0644 |
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mmu-book3e.h | File | 9.47 KB | 0644 |
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mmu.h | File | 9.2 KB | 0644 |
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mmu_context.h | File | 6.26 KB | 0644 |
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mmzone.h | File | 1.08 KB | 0644 |
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module.h | File | 2.47 KB | 0644 |
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mpc5121.h | File | 3.82 KB | 0644 |
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mpc52xx.h | File | 10.85 KB | 0644 |
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mpc52xx_psc.h | File | 9.89 KB | 0644 |
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mpc5xxx.h | File | 641 B | 0644 |
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mpc6xx.h | File | 143 B | 0644 |
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mpc8260.h | File | 742 B | 0644 |
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mpc85xx.h | File | 2.52 KB | 0644 |
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mpic.h | File | 13.97 KB | 0644 |
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mpic_msgr.h | File | 3.52 KB | 0644 |
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mpic_timer.h | File | 1.39 KB | 0644 |
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msi_bitmap.h | File | 1.01 KB | 0644 |
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nmi.h | File | 238 B | 0644 |
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nvram.h | File | 3.21 KB | 0644 |
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ohare.h | File | 1.64 KB | 0644 |
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opal-api.h | File | 29.34 KB | 0644 |
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opal.h | File | 16.53 KB | 0644 |
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oprofile_impl.h | File | 3 KB | 0644 |
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paca.h | File | 8.06 KB | 0644 |
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page.h | File | 10.65 KB | 0644 |
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page_32.h | File | 1.57 KB | 0644 |
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page_64.h | File | 2.93 KB | 0644 |
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parport.h | File | 956 B | 0644 |
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pasemi_dma.h | File | 23.32 KB | 0644 |
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pci-bridge.h | File | 9.21 KB | 0644 |
|
pci.h | File | 4.58 KB | 0644 |
|
percpu.h | File | 468 B | 0644 |
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perf_event.h | File | 1.23 KB | 0644 |
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perf_event_fsl_emb.h | File | 1.42 KB | 0644 |
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perf_event_server.h | File | 6.3 KB | 0644 |
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pgalloc.h | File | 620 B | 0644 |
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pgtable-be-types.h | File | 2.76 KB | 0644 |
|
pgtable-types.h | File | 1.94 KB | 0644 |
|
pgtable.h | File | 2.45 KB | 0644 |
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plpar_wrappers.h | File | 8.35 KB | 0644 |
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pmac_feature.h | File | 13.08 KB | 0644 |
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pmac_low_i2c.h | File | 3.24 KB | 0644 |
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pmac_pfunc.h | File | 8.01 KB | 0644 |
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pmc.h | File | 1.35 KB | 0644 |
|
pmi.h | File | 1.77 KB | 0644 |
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pnv-ocxl.h | File | 1.4 KB | 0644 |
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pnv-pci.h | File | 3.22 KB | 0644 |
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powernv.h | File | 1.57 KB | 0644 |
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ppc-opcode.h | File | 19.05 KB | 0644 |
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ppc-pci.h | File | 2.69 KB | 0644 |
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ppc4xx.h | File | 530 B | 0644 |
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ppc4xx_ocm.h | File | 1.41 KB | 0644 |
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ppc_asm.h | File | 21.63 KB | 0644 |
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probes.h | File | 2.11 KB | 0644 |
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processor.h | File | 15 KB | 0644 |
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prom.h | File | 7.17 KB | 0644 |
|
ps3.h | File | 15.44 KB | 0644 |
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ps3av.h | File | 23.49 KB | 0644 |
|
ps3gpu.h | File | 2.44 KB | 0644 |
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ps3stor.h | File | 1.99 KB | 0644 |
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pte-common.h | File | 6.27 KB | 0644 |
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pte-walk.h | File | 1.11 KB | 0644 |
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ptrace.h | File | 7.14 KB | 0644 |
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reg.h | File | 61.61 KB | 0644 |
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reg_8xx.h | File | 4.96 KB | 0644 |
|
reg_a2.h | File | 6.16 KB | 0644 |
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reg_booke.h | File | 36.17 KB | 0644 |
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reg_fsl_emb.h | File | 3.65 KB | 0644 |
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rheap.h | File | 2.43 KB | 0644 |
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rio.h | File | 637 B | 0644 |
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rtas.h | File | 14.67 KB | 0644 |
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runlatch.h | File | 1.16 KB | 0644 |
|
scom.h | File | 4.92 KB | 0644 |
|
seccomp.h | File | 249 B | 0644 |
|
sections.h | File | 1.9 KB | 0644 |
|
security_features.h | File | 3.03 KB | 0644 |
|
serial.h | File | 677 B | 0644 |
|
setjmp.h | File | 630 B | 0644 |
|
setup.h | File | 2.44 KB | 0644 |
|
sfp-machine.h | File | 12.38 KB | 0644 |
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shmparam.h | File | 206 B | 0644 |
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signal.h | File | 225 B | 0644 |
|
slice.h | File | 1.12 KB | 0644 |
|
smp.h | File | 6.13 KB | 0644 |
|
smu.h | File | 19.33 KB | 0644 |
|
sparsemem.h | File | 1.1 KB | 0644 |
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spinlock.h | File | 7.04 KB | 0644 |
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spinlock_types.h | File | 424 B | 0644 |
|
spu.h | File | 25.28 KB | 0644 |
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spu_csa.h | File | 6.64 KB | 0644 |
|
spu_info.h | File | 908 B | 0644 |
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spu_priv1.h | File | 5.68 KB | 0644 |
|
sstep.h | File | 4.58 KB | 0644 |
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string.h | File | 1.74 KB | 0644 |
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swab.h | File | 377 B | 0644 |
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swiotlb.h | File | 810 B | 0644 |
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switch_to.h | File | 2.66 KB | 0644 |
|
synch.h | File | 1.36 KB | 0644 |
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syscall.h | File | 2.8 KB | 0644 |
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syscalls.h | File | 684 B | 0644 |
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systbl.h | File | 9.28 KB | 0644 |
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tce.h | File | 1.72 KB | 0644 |
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termios.h | File | 860 B | 0644 |
|
thread_info.h | File | 5.31 KB | 0644 |
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time.h | File | 4.82 KB | 0644 |
|
timex.h | File | 967 B | 0644 |
|
tlb.h | File | 2.47 KB | 0644 |
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tlbflush.h | File | 2.93 KB | 0644 |
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tm.h | File | 690 B | 0644 |
|
topology.h | File | 2.92 KB | 0644 |
|
trace.h | File | 4.17 KB | 0644 |
|
trace_clock.h | File | 517 B | 0644 |
|
tsi108.h | File | 3.39 KB | 0644 |
|
tsi108_irq.h | File | 4.48 KB | 0644 |
|
tsi108_pci.h | File | 1.82 KB | 0644 |
|
types.h | File | 1 KB | 0644 |
|
uaccess.h | File | 13.21 KB | 0644 |
|
udbg.h | File | 2.16 KB | 0644 |
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uic.h | File | 616 B | 0644 |
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unaligned.h | File | 548 B | 0644 |
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uninorth.h | File | 8.21 KB | 0644 |
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unistd.h | File | 1.52 KB | 0644 |
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uprobes.h | File | 1.41 KB | 0644 |
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user.h | File | 2.14 KB | 0644 |
|
vas.h | File | 4.61 KB | 0644 |
|
vdso.h | File | 1.53 KB | 0644 |
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vdso_datapage.h | File | 4.4 KB | 0644 |
|
vga.h | File | 1.24 KB | 0644 |
|
vio.h | File | 4.79 KB | 0644 |
|
word-at-a-time.h | File | 4.75 KB | 0644 |
|
xics.h | File | 4.31 KB | 0644 |
|
xilinx_intc.h | File | 598 B | 0644 |
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xilinx_pci.h | File | 551 B | 0644 |
|
xive-regs.h | File | 3.73 KB | 0644 |
|
xive.h | File | 5.35 KB | 0644 |
|
xmon.h | File | 927 B | 0644 |
|
xor.h | File | 2.11 KB | 0644 |
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