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Diffstat (limited to 'arch/frv/kernel/entry.S')
| -rw-r--r-- | arch/frv/kernel/entry.S | 1519 |
1 files changed, 0 insertions, 1519 deletions
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S deleted file mode 100644 index dfcd263c05176..0000000000000 --- a/arch/frv/kernel/entry.S +++ /dev/null @@ -1,1519 +0,0 @@ -/* entry.S: FR-V entry - * - * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * 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. - * - * - * Entry to the kernel is "interesting": - * (1) There are no stack pointers, not even for the kernel - * (2) General Registers should not be clobbered - * (3) There are no kernel-only data registers - * (4) Since all addressing modes are wrt to a General Register, no global - * variables can be reached - * - * We deal with this by declaring that we shall kill GR28 on entering the - * kernel from userspace - * - * However, since break interrupts can interrupt the CPU even when PSR.ET==0, - * they can't rely on GR28 to be anything useful, and so need to clobber a - * separate register (GR31). Break interrupts are managed in break.S - * - * GR29 _is_ saved, and holds the current task pointer globally - * - */ - -#include <linux/linkage.h> -#include <asm/thread_info.h> -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/ptrace.h> -#include <asm/errno.h> -#include <asm/cache.h> -#include <asm/spr-regs.h> - -#define nr_syscalls ((syscall_table_size)/4) - - .section .text..entry - .balign 4 - -.macro LEDS val -# sethi.p %hi(0xe1200004),gr30 -# setlo %lo(0xe1200004),gr30 -# setlos #~\val,gr31 -# st gr31,@(gr30,gr0) -# sethi.p %hi(0xffc00100),gr30 -# setlo %lo(0xffc00100),gr30 -# sth gr0,@(gr30,gr0) -# membar -.endm - -.macro LEDS32 -# not gr31,gr31 -# sethi.p %hi(0xe1200004),gr30 -# setlo %lo(0xe1200004),gr30 -# st.p gr31,@(gr30,gr0) -# srli gr31,#16,gr31 -# sethi.p %hi(0xffc00100),gr30 -# setlo %lo(0xffc00100),gr30 -# sth gr31,@(gr30,gr0) -# membar -.endm - -############################################################################### -# -# entry point for External interrupts received whilst executing userspace code -# -############################################################################### - .globl __entry_uspace_external_interrupt - .type __entry_uspace_external_interrupt,@function -__entry_uspace_external_interrupt: - LEDS 0x6200 - sethi.p %hi(__kernel_frame0_ptr),gr28 - setlo %lo(__kernel_frame0_ptr),gr28 - ldi @(gr28,#0),gr28 - - # handle h/w single-step through exceptions - sti gr0,@(gr28,#REG__STATUS) - - .globl __entry_uspace_external_interrupt_reentry -__entry_uspace_external_interrupt_reentry: - LEDS 0x6201 - - setlos #REG__END,gr30 - dcpl gr28,gr30,#0 - - # finish building the exception frame - sti sp, @(gr28,#REG_SP) - stdi gr2, @(gr28,#REG_GR(2)) - stdi gr4, @(gr28,#REG_GR(4)) - stdi gr6, @(gr28,#REG_GR(6)) - stdi gr8, @(gr28,#REG_GR(8)) - stdi gr10,@(gr28,#REG_GR(10)) - stdi gr12,@(gr28,#REG_GR(12)) - stdi gr14,@(gr28,#REG_GR(14)) - stdi gr16,@(gr28,#REG_GR(16)) - stdi gr18,@(gr28,#REG_GR(18)) - stdi gr20,@(gr28,#REG_GR(20)) - stdi gr22,@(gr28,#REG_GR(22)) - stdi gr24,@(gr28,#REG_GR(24)) - stdi gr26,@(gr28,#REG_GR(26)) - sti gr0, @(gr28,#REG_GR(28)) - sti gr29,@(gr28,#REG_GR(29)) - stdi.p gr30,@(gr28,#REG_GR(30)) - - # set up the kernel stack pointer - ori gr28,0,sp - - movsg tbr ,gr20 - movsg psr ,gr22 - movsg pcsr,gr21 - movsg isr ,gr23 - movsg ccr ,gr24 - movsg cccr,gr25 - movsg lr ,gr26 - movsg lcr ,gr27 - - setlos.p #-1,gr4 - andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ - andi.p gr22,#~(PSR_PS|PSR_S),gr6 - slli gr5,#1,gr5 - or gr6,gr5,gr5 - andi gr5,#~PSR_ET,gr5 - - sti gr20,@(gr28,#REG_TBR) - sti gr21,@(gr28,#REG_PC) - sti gr5 ,@(gr28,#REG_PSR) - sti gr23,@(gr28,#REG_ISR) - stdi gr24,@(gr28,#REG_CCR) - stdi gr26,@(gr28,#REG_LR) - sti gr4 ,@(gr28,#REG_SYSCALLNO) - - movsg iacc0h,gr4 - movsg iacc0l,gr5 - stdi gr4,@(gr28,#REG_IACC0) - - movsg gner0,gr4 - movsg gner1,gr5 - stdi.p gr4,@(gr28,#REG_GNER0) - - # interrupts start off fully disabled in the interrupt handler - subcc gr0,gr0,gr0,icc2 /* set Z and clear C */ - - # set up kernel global registers - sethi.p %hi(__kernel_current_task),gr5 - setlo %lo(__kernel_current_task),gr5 - sethi.p %hi(_gp),gr16 - setlo %lo(_gp),gr16 - ldi @(gr5,#0),gr29 - ldi.p @(gr29,#4),gr15 ; __current_thread_info = current->thread_info - - # make sure we (the kernel) get div-zero and misalignment exceptions - setlos #ISR_EDE|ISR_DTT_DIVBYZERO|ISR_EMAM_EXCEPTION,gr5 - movgs gr5,isr - - # switch to the kernel trap table - sethi.p %hi(__entry_kerneltrap_table),gr6 - setlo %lo(__entry_kerneltrap_table),gr6 - movgs gr6,tbr - - # set the return address - sethi.p %hi(__entry_return_from_user_interrupt),gr4 - setlo %lo(__entry_return_from_user_interrupt),gr4 - movgs gr4,lr - - # raise the minimum interrupt priority to 15 (NMI only) and enable exceptions - movsg psr,gr4 - - ori gr4,#PSR_PIL_14,gr4 - movgs gr4,psr - ori gr4,#PSR_PIL_14|PSR_ET,gr4 - movgs gr4,psr - - LEDS 0x6202 - bra do_IRQ - - .size __entry_uspace_external_interrupt,.-__entry_uspace_external_interrupt - -############################################################################### -# -# entry point for External interrupts received whilst executing kernel code -# - on arriving here, the following registers should already be set up: -# GR15 - current thread_info struct pointer -# GR16 - kernel GP-REL pointer -# GR29 - current task struct pointer -# TBR - kernel trap vector table -# ISR - kernel's preferred integer controls -# -############################################################################### - .globl __entry_kernel_external_interrupt - .type __entry_kernel_external_interrupt,@function -__entry_kernel_external_interrupt: - LEDS 0x6210 -// sub sp,gr15,gr31 -// LEDS32 - - # set up the stack pointer - or.p sp,gr0,gr30 - subi sp,#REG__END,sp - sti gr30,@(sp,#REG_SP) - - # handle h/w single-step through exceptions - sti gr0,@(sp,#REG__STATUS) - - .globl __entry_kernel_external_interrupt_reentry -__entry_kernel_external_interrupt_reentry: - LEDS 0x6211 - - # set up the exception frame - setlos #REG__END,gr30 - dcpl sp,gr30,#0 - - sti.p gr28,@(sp,#REG_GR(28)) - ori sp,0,gr28 - - # finish building the exception frame - stdi gr2,@(gr28,#REG_GR(2)) - stdi gr4,@(gr28,#REG_GR(4)) - stdi gr6,@(gr28,#REG_GR(6)) - stdi gr8,@(gr28,#REG_GR(8)) - stdi gr10,@(gr28,#REG_GR(10)) - stdi gr12,@(gr28,#REG_GR(12)) - stdi gr14,@(gr28,#REG_GR(14)) - stdi gr16,@(gr28,#REG_GR(16)) - stdi gr18,@(gr28,#REG_GR(18)) - stdi gr20,@(gr28,#REG_GR(20)) - stdi gr22,@(gr28,#REG_GR(22)) - stdi gr24,@(gr28,#REG_GR(24)) - stdi gr26,@(gr28,#REG_GR(26)) - sti gr29,@(gr28,#REG_GR(29)) - stdi.p gr30,@(gr28,#REG_GR(30)) - - # note virtual interrupts will be fully enabled upon return - subicc gr0,#1,gr0,icc2 /* clear Z, set C */ - - movsg tbr ,gr20 - movsg psr ,gr22 - movsg pcsr,gr21 - movsg isr ,gr23 - movsg ccr ,gr24 - movsg cccr,gr25 - movsg lr ,gr26 - movsg lcr ,gr27 - - setlos.p #-1,gr4 - andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ - andi.p gr22,#~(PSR_PS|PSR_S),gr6 - slli gr5,#1,gr5 - or gr6,gr5,gr5 - andi.p gr5,#~PSR_ET,gr5 - - # set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel - # - for an explanation of how it works, see: Documentation/frv/atomic-ops.txt - andi gr25,#~0xc0,gr25 - - sti gr20,@(gr28,#REG_TBR) - sti gr21,@(gr28,#REG_PC) - sti gr5 ,@(gr28,#REG_PSR) - sti gr23,@(gr28,#REG_ISR) - stdi gr24,@(gr28,#REG_CCR) - stdi gr26,@(gr28,#REG_LR) - sti gr4 ,@(gr28,#REG_SYSCALLNO) - - movsg iacc0h,gr4 - movsg iacc0l,gr5 - stdi gr4,@(gr28,#REG_IACC0) - - movsg gner0,gr4 - movsg gner1,gr5 - stdi.p gr4,@(gr28,#REG_GNER0) - - # interrupts start off fully disabled in the interrupt handler - subcc gr0,gr0,gr0,icc2 /* set Z and clear C */ - - # set the return address - sethi.p %hi(__entry_return_from_kernel_interrupt),gr4 - setlo %lo(__entry_return_from_kernel_interrupt),gr4 - movgs gr4,lr - - # clear power-saving mode flags - movsg hsr0,gr4 - andi gr4,#~HSR0_PDM,gr4 - movgs gr4,hsr0 - - # raise the minimum interrupt priority to 15 (NMI only) and enable exceptions - movsg psr,gr4 - ori gr4,#PSR_PIL_14,gr4 - movgs gr4,psr - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - - LEDS 0x6212 - bra do_IRQ - - .size __entry_kernel_external_interrupt,.-__entry_kernel_external_interrupt - -############################################################################### -# -# deal with interrupts that were actually virtually disabled -# - we need to really disable them, flag the fact and return immediately -# - if you change this, you must alter break.S also -# -############################################################################### - .balign L1_CACHE_BYTES - .globl __entry_kernel_external_interrupt_virtually_disabled - .type __entry_kernel_external_interrupt_virtually_disabled,@function -__entry_kernel_external_interrupt_virtually_disabled: - movsg psr,gr30 - andi gr30,#~PSR_PIL,gr30 - ori gr30,#PSR_PIL_14,gr30 ; debugging interrupts only - movgs gr30,psr - subcc gr0,gr0,gr0,icc2 ; leave Z set, clear C - rett #0 - - .size __entry_kernel_external_interrupt_virtually_disabled,.-__entry_kernel_external_interrupt_virtually_disabled - -############################################################################### -# -# deal with re-enablement of interrupts that were pending when virtually re-enabled -# - set ICC2.C, re-enable the real interrupts and return -# - we can clear ICC2.Z because we shouldn't be here if it's not 0 [due to TIHI] -# - if you change this, you must alter break.S also -# -############################################################################### - .balign L1_CACHE_BYTES - .globl __entry_kernel_external_interrupt_virtual_reenable - .type __entry_kernel_external_interrupt_virtual_reenable,@function -__entry_kernel_external_interrupt_virtual_reenable: - movsg psr,gr30 - andi gr30,#~PSR_PIL,gr30 ; re-enable interrupts - movgs gr30,psr - subicc gr0,#1,gr0,icc2 ; clear Z, set C - rett #0 - - .size __entry_kernel_external_interrupt_virtual_reenable,.-__entry_kernel_external_interrupt_virtual_reenable - -############################################################################### -# -# entry point for Software and Progam interrupts generated whilst executing userspace code -# -############################################################################### - .globl __entry_uspace_softprog_interrupt - .type __entry_uspace_softprog_interrupt,@function - .globl __entry_uspace_handle_mmu_fault -__entry_uspace_softprog_interrupt: - LEDS 0x6000 -#ifdef CONFIG_MMU - movsg ear0,gr28 -__entry_uspace_handle_mmu_fault: - movgs gr28,scr2 -#endif - sethi.p %hi(__kernel_frame0_ptr),gr28 - setlo %lo(__kernel_frame0_ptr),gr28 - ldi @(gr28,#0),gr28 - - # handle h/w single-step through exceptions - sti gr0,@(gr28,#REG__STATUS) - - .globl __entry_uspace_softprog_interrupt_reentry -__entry_uspace_softprog_interrupt_reentry: - LEDS 0x6001 - - setlos #REG__END,gr30 - dcpl gr28,gr30,#0 - - # set up the kernel stack pointer - sti.p sp,@(gr28,#REG_SP) - ori gr28,0,sp - sti gr0,@(gr28,#REG_GR(28)) - - stdi gr20,@(gr28,#REG_GR(20)) - stdi gr22,@(gr28,#REG_GR(22)) - - movsg tbr,gr20 - movsg pcsr,gr21 - movsg psr,gr22 - - sethi.p %hi(__entry_return_from_user_exception),gr23 - setlo %lo(__entry_return_from_user_exception),gr23 - - bra __entry_common - - .size __entry_uspace_softprog_interrupt,.-__entry_uspace_softprog_interrupt - - # single-stepping was disabled on entry to a TLB handler that then faulted -#ifdef CONFIG_MMU - .globl __entry_uspace_handle_mmu_fault_sstep -__entry_uspace_handle_mmu_fault_sstep: - movgs gr28,scr2 - sethi.p %hi(__kernel_frame0_ptr),gr28 - setlo %lo(__kernel_frame0_ptr),gr28 - ldi @(gr28,#0),gr28 - - # flag single-step re-enablement - sti gr0,@(gr28,#REG__STATUS) - bra __entry_uspace_softprog_interrupt_reentry -#endif - - -############################################################################### -# -# entry point for Software and Progam interrupts generated whilst executing kernel code -# -############################################################################### - .globl __entry_kernel_softprog_interrupt - .type __entry_kernel_softprog_interrupt,@function -__entry_kernel_softprog_interrupt: - LEDS 0x6004 - -#ifdef CONFIG_MMU - movsg ear0,gr30 - movgs gr30,scr2 -#endif - - .globl __entry_kernel_handle_mmu_fault -__entry_kernel_handle_mmu_fault: - # set up the stack pointer - subi sp,#REG__END,sp - sti sp,@(sp,#REG_SP) - sti sp,@(sp,#REG_SP-4) - andi sp,#~7,sp - - # handle h/w single-step through exceptions - sti gr0,@(sp,#REG__STATUS) - - .globl __entry_kernel_softprog_interrupt_reentry -__entry_kernel_softprog_interrupt_reentry: - LEDS 0x6005 - - setlos #REG__END,gr30 - dcpl sp,gr30,#0 - - # set up the exception frame - sti.p gr28,@(sp,#REG_GR(28)) - ori sp,0,gr28 - - stdi gr20,@(gr28,#REG_GR(20)) - stdi gr22,@(gr28,#REG_GR(22)) - - ldi @(sp,#REG_SP),gr22 /* reconstruct the old SP */ - addi gr22,#REG__END,gr22 - sti gr22,@(sp,#REG_SP) - - # set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel - # - for an explanation of how it works, see: Documentation/frv/atomic-ops.txt - movsg cccr,gr20 - andi gr20,#~0xc0,gr20 - movgs gr20,cccr - - movsg tbr,gr20 - movsg pcsr,gr21 - movsg psr,gr22 - - sethi.p %hi(__entry_return_from_kernel_exception),gr23 - setlo %lo(__entry_return_from_kernel_exception),gr23 - bra __entry_common - - .size __entry_kernel_softprog_interrupt,.-__entry_kernel_softprog_interrupt - - # single-stepping was disabled on entry to a TLB handler that then faulted -#ifdef CONFIG_MMU - .globl __entry_kernel_handle_mmu_fault_sstep -__entry_kernel_handle_mmu_fault_sstep: - # set up the stack pointer - subi sp,#REG__END,sp - sti sp,@(sp,#REG_SP) - sti sp,@(sp,#REG_SP-4) - andi sp,#~7,sp - - # flag single-step re-enablement - sethi #REG__STATUS_STEP,gr30 - sti gr30,@(sp,#REG__STATUS) - bra __entry_kernel_softprog_interrupt_reentry -#endif - - -############################################################################### -# -# the rest of the kernel entry point code -# - on arriving here, the following registers should be set up: -# GR1 - kernel stack pointer -# GR7 - syscall number (trap 0 only) -# GR8-13 - syscall args (trap 0 only) -# GR20 - saved TBR -# GR21 - saved PC -# GR22 - saved PSR -# GR23 - return handler address -# GR28 - exception frame on stack -# SCR2 - saved EAR0 where applicable (clobbered by ICI & ICEF insns on FR451) -# PSR - PSR.S 1, PSR.ET 0 -# -############################################################################### - .globl __entry_common - .type __entry_common,@function -__entry_common: - LEDS 0x6008 - - # finish building the exception frame - stdi gr2,@(gr28,#REG_GR(2)) - stdi gr4,@(gr28,#REG_GR(4)) - stdi gr6,@(gr28,#REG_GR(6)) - stdi gr8,@(gr28,#REG_GR(8)) - stdi gr10,@(gr28,#REG_GR(10)) - stdi gr12,@(gr28,#REG_GR(12)) - stdi gr14,@(gr28,#REG_GR(14)) - stdi gr16,@(gr28,#REG_GR(16)) - stdi gr18,@(gr28,#REG_GR(18)) - stdi gr24,@(gr28,#REG_GR(24)) - stdi gr26,@(gr28,#REG_GR(26)) - sti gr29,@(gr28,#REG_GR(29)) - stdi gr30,@(gr28,#REG_GR(30)) - - movsg lcr ,gr27 - movsg lr ,gr26 - movgs gr23,lr - movsg cccr,gr25 - movsg ccr ,gr24 - movsg isr ,gr23 - - setlos.p #-1,gr4 - andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ - andi.p gr22,#~(PSR_PS|PSR_S),gr6 - slli gr5,#1,gr5 - or gr6,gr5,gr5 - andi gr5,#~PSR_ET,gr5 - - sti gr20,@(gr28,#REG_TBR) - sti gr21,@(gr28,#REG_PC) - sti gr5 ,@(gr28,#REG_PSR) - sti gr23,@(gr28,#REG_ISR) - stdi gr24,@(gr28,#REG_CCR) - stdi gr26,@(gr28,#REG_LR) - sti gr4 ,@(gr28,#REG_SYSCALLNO) - - movsg iacc0h,gr4 - movsg iacc0l,gr5 - stdi gr4,@(gr28,#REG_IACC0) - - movsg gner0,gr4 - movsg gner1,gr5 - stdi.p gr4,@(gr28,#REG_GNER0) - - # set up virtual interrupt disablement - subicc gr0,#1,gr0,icc2 /* clear Z flag, set C flag */ - - # set up kernel global registers - sethi.p %hi(__kernel_current_task),gr5 - setlo %lo(__kernel_current_task),gr5 - sethi.p %hi(_gp),gr16 - setlo %lo(_gp),gr16 - ldi @(gr5,#0),gr29 - ldi @(gr29,#4),gr15 ; __current_thread_info = current->thread_info - - # switch to the kernel trap table - sethi.p %hi(__entry_kerneltrap_table),gr6 - setlo %lo(__entry_kerneltrap_table),gr6 - movgs gr6,tbr - - # make sure we (the kernel) get div-zero and misalignment exceptions - setlos #ISR_EDE|ISR_DTT_DIVBYZERO|ISR_EMAM_EXCEPTION,gr5 - movgs gr5,isr - - # clear power-saving mode flags - movsg hsr0,gr4 - andi gr4,#~HSR0_PDM,gr4 - movgs gr4,hsr0 - - # multiplex again using old TBR as a guide - setlos.p #TBR_TT,gr3 - sethi %hi(__entry_vector_table),gr6 - and.p gr20,gr3,gr5 - setlo %lo(__entry_vector_table),gr6 - srli gr5,#2,gr5 - ld @(gr5,gr6),gr5 - - LEDS 0x6009 - jmpl @(gr5,gr0) - - - .size __entry_common,.-__entry_common - -############################################################################### -# -# handle instruction MMU fault -# -############################################################################### -#ifdef CONFIG_MMU - .globl __entry_insn_mmu_fault -__entry_insn_mmu_fault: - LEDS 0x6010 - setlos #0,gr8 - movsg esr0,gr9 - movsg scr2,gr10 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - - sethi.p %hi(do_page_fault),gr5 - setlo %lo(do_page_fault),gr5 - jmpl @(gr5,gr0) ; call do_page_fault(0,esr0,ear0) -#endif - - -############################################################################### -# -# handle instruction access error -# -############################################################################### - .globl __entry_insn_access_error -__entry_insn_access_error: - LEDS 0x6011 - sethi.p %hi(insn_access_error),gr5 - setlo %lo(insn_access_error),gr5 - movsg esfr1,gr8 - movsg epcr0,gr9 - movsg esr0,gr10 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call insn_access_error(esfr1,epcr0,esr0) - -############################################################################### -# -# handle various instructions of dubious legality -# -############################################################################### - .globl __entry_unsupported_trap - .globl __entry_illegal_instruction - .globl __entry_privileged_instruction - .globl __entry_debug_exception -__entry_unsupported_trap: - subi gr21,#4,gr21 - sti gr21,@(gr28,#REG_PC) -__entry_illegal_instruction: -__entry_privileged_instruction: -__entry_debug_exception: - LEDS 0x6012 - sethi.p %hi(illegal_instruction),gr5 - setlo %lo(illegal_instruction),gr5 - movsg esfr1,gr8 - movsg epcr0,gr9 - movsg esr0,gr10 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call ill_insn(esfr1,epcr0,esr0) - -############################################################################### -# -# handle atomic operation emulation for userspace -# -############################################################################### - .globl __entry_atomic_op -__entry_atomic_op: - LEDS 0x6012 - sethi.p %hi(atomic_operation),gr5 - setlo %lo(atomic_operation),gr5 - movsg esfr1,gr8 - movsg epcr0,gr9 - movsg esr0,gr10 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call atomic_operation(esfr1,epcr0,esr0) - -############################################################################### -# -# handle media exception -# -############################################################################### - .globl __entry_media_exception -__entry_media_exception: - LEDS 0x6013 - sethi.p %hi(media_exception),gr5 - setlo %lo(media_exception),gr5 - movsg msr0,gr8 - movsg msr1,gr9 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call media_excep(msr0,msr1) - -############################################################################### -# -# handle data MMU fault -# handle data DAT fault (write-protect exception) -# -############################################################################### -#ifdef CONFIG_MMU - .globl __entry_data_mmu_fault -__entry_data_mmu_fault: - .globl __entry_data_dat_fault -__entry_data_dat_fault: - LEDS 0x6014 - setlos #1,gr8 - movsg esr0,gr9 - movsg scr2,gr10 ; saved EAR0 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - - sethi.p %hi(do_page_fault),gr5 - setlo %lo(do_page_fault),gr5 - jmpl @(gr5,gr0) ; call do_page_fault(1,esr0,ear0) -#endif - -############################################################################### -# -# handle data and instruction access exceptions -# -############################################################################### - .globl __entry_insn_access_exception - .globl __entry_data_access_exception -__entry_insn_access_exception: -__entry_data_access_exception: - LEDS 0x6016 - sethi.p %hi(memory_access_exception),gr5 - setlo %lo(memory_access_exception),gr5 - movsg esr0,gr8 - movsg scr2,gr9 ; saved EAR0 - movsg epcr0,gr10 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call memory_access_error(esr0,ear0,epcr0) - -############################################################################### -# -# handle data access error -# -############################################################################### - .globl __entry_data_access_error -__entry_data_access_error: - LEDS 0x6016 - sethi.p %hi(data_access_error),gr5 - setlo %lo(data_access_error),gr5 - movsg esfr1,gr8 - movsg esr15,gr9 - movsg ear15,gr10 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call data_access_error(esfr1,esr15,ear15) - -############################################################################### -# -# handle data store error -# -############################################################################### - .globl __entry_data_store_error -__entry_data_store_error: - LEDS 0x6017 - sethi.p %hi(data_store_error),gr5 - setlo %lo(data_store_error),gr5 - movsg esfr1,gr8 - movsg esr14,gr9 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call data_store_error(esfr1,esr14) - -############################################################################### -# -# handle division exception -# -############################################################################### - .globl __entry_division_exception -__entry_division_exception: - LEDS 0x6018 - sethi.p %hi(division_exception),gr5 - setlo %lo(division_exception),gr5 - movsg esfr1,gr8 - movsg esr0,gr9 - movsg isr,gr10 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call div_excep(esfr1,esr0,isr) - -############################################################################### -# -# handle compound exception -# -############################################################################### - .globl __entry_compound_exception -__entry_compound_exception: - LEDS 0x6019 - sethi.p %hi(compound_exception),gr5 - setlo %lo(compound_exception),gr5 - movsg esfr1,gr8 - movsg esr0,gr9 - movsg esr14,gr10 - movsg esr15,gr11 - movsg msr0,gr12 - movsg msr1,gr13 - - # now that we've accessed the exception regs, we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - jmpl @(gr5,gr0) ; call comp_excep(esfr1,esr0,esr14,esr15,msr0,msr1) - -############################################################################### -# -# handle interrupts and NMIs -# -############################################################################### - .globl __entry_do_IRQ -__entry_do_IRQ: - LEDS 0x6020 - - # we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - bra do_IRQ - - .globl __entry_do_NMI -__entry_do_NMI: - LEDS 0x6021 - - # we can enable exceptions - movsg psr,gr4 - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - bra do_NMI - -############################################################################### -# -# the return path for a newly forked child process -# - __switch_to() saved the old current pointer in GR8 for us -# -############################################################################### - .globl ret_from_fork -ret_from_fork: - LEDS 0x6100 - call schedule_tail - - # fork & co. return 0 to child - setlos.p #0,gr8 - bra __syscall_exit - - .globl ret_from_kernel_thread -ret_from_kernel_thread: - lddi.p @(gr28,#REG_GR(8)),gr20 - call schedule_tail - calll.p @(gr21,gr0) - or gr20,gr20,gr8 - bra __syscall_exit - -################################################################################################### -# -# Return to user mode is not as complex as all this looks, -# but we want the default path for a system call return to -# go as quickly as possible which is why some of this is -# less clear than it otherwise should be. -# -################################################################################################### - .balign L1_CACHE_BYTES - .globl system_call -system_call: - LEDS 0x6101 - movsg psr,gr4 ; enable exceptions - ori gr4,#PSR_ET,gr4 - movgs gr4,psr - - sti gr7,@(gr28,#REG_SYSCALLNO) - sti.p gr8,@(gr28,#REG_ORIG_GR8) - - subicc gr7,#nr_syscalls,gr0,icc0 - bnc icc0,#0,__syscall_badsys - - ldi @(gr15,#TI_FLAGS),gr4 - andicc gr4,#_TIF_SYSCALL_TRACE,gr0,icc0 - bne icc0,#0,__syscall_trace_entry - -__syscall_call: - slli.p gr7,#2,gr7 - sethi %hi(sys_call_table),gr5 - setlo %lo(sys_call_table),gr5 - ld @(gr5,gr7),gr4 - calll @(gr4,gr0) - - -############################################################################### -# -# return to interrupted process -# -############################################################################### -__syscall_exit: - LEDS 0x6300 - - # keep current PSR in GR23 - movsg psr,gr23 - - ldi @(gr28,#REG_PSR),gr22 - - sti.p gr8,@(gr28,#REG_GR(8)) ; save return value - - # rebuild saved psr - execve will change it for init/main.c - srli gr22,#1,gr5 - andi.p gr22,#~PSR_PS,gr22 - andi gr5,#PSR_PS,gr5 - or gr5,gr22,gr22 - ori.p gr22,#PSR_S,gr22 - - # make sure we don't miss an interrupt setting need_resched or sigpending between - # sampling and the RETT - ori gr23,#PSR_PIL_14,gr23 - movgs gr23,psr - - ldi @(gr15,#TI_FLAGS),gr4 - andicc gr4,#_TIF_ALLWORK_MASK,gr0,icc0 - bne icc0,#0,__syscall_exit_work - - # restore all registers and return -__entry_return_direct: - LEDS 0x6301 - - andi gr22,#~PSR_ET,gr22 - movgs gr22,psr - - ldi @(gr28,#REG_ISR),gr23 - lddi @(gr28,#REG_CCR),gr24 - lddi @(gr28,#REG_LR) ,gr26 - ldi @(gr28,#REG_PC) ,gr21 - ldi @(gr28,#REG_TBR),gr20 - - movgs gr20,tbr - movgs gr21,pcsr - movgs gr23,isr - movgs gr24,ccr - movgs gr25,cccr - movgs gr26,lr - movgs gr27,lcr - - lddi @(gr28,#REG_GNER0),gr4 - movgs gr4,gner0 - movgs gr5,gner1 - - lddi @(gr28,#REG_IACC0),gr4 - movgs gr4,iacc0h - movgs gr5,iacc0l - - lddi @(gr28,#REG_GR(4)) ,gr4 - lddi @(gr28,#REG_GR(6)) ,gr6 - lddi @(gr28,#REG_GR(8)) ,gr8 - lddi @(gr28,#REG_GR(10)),gr10 - lddi @(gr28,#REG_GR(12)),gr12 - lddi @(gr28,#REG_GR(14)),gr14 - lddi @(gr28,#REG_GR(16)),gr16 - lddi @(gr28,#REG_GR(18)),gr18 - lddi @(gr28,#REG_GR(20)),gr20 - lddi @(gr28,#REG_GR(22)),gr22 - lddi @(gr28,#REG_GR(24)),gr24 - lddi @(gr28,#REG_GR(26)),gr26 - ldi @(gr28,#REG_GR(29)),gr29 - lddi @(gr28,#REG_GR(30)),gr30 - - # check to see if a debugging return is required - LEDS 0x67f0 - movsg ccr,gr2 - ldi @(gr28,#REG__STATUS),gr3 - andicc gr3,#REG__STATUS_STEP,gr0,icc0 - bne icc0,#0,__entry_return_singlestep - movgs gr2,ccr - - ldi @(gr28,#REG_SP) ,sp - lddi @(gr28,#REG_GR(2)) ,gr2 - ldi @(gr28,#REG_GR(28)),gr28 - - LEDS 0x67fe -// movsg pcsr,gr31 -// LEDS32 - -#if 0 - # store the current frame in the workram on the FR451 - movgs gr28,scr2 - sethi.p %hi(0xfe800000),gr28 - setlo %lo(0xfe800000),gr28 - - stdi gr2,@(gr28,#REG_GR(2)) - stdi gr4,@(gr28,#REG_GR(4)) - stdi gr6,@(gr28,#REG_GR(6)) - stdi gr8,@(gr28,#REG_GR(8)) - stdi gr10,@(gr28,#REG_GR(10)) - stdi gr12,@(gr28,#REG_GR(12)) - stdi gr14,@(gr28,#REG_GR(14)) - stdi gr16,@(gr28,#REG_GR(16)) - stdi gr18,@(gr28,#REG_GR(18)) - stdi gr24,@(gr28,#REG_GR(24)) - stdi gr26,@(gr28,#REG_GR(26)) - sti gr29,@(gr28,#REG_GR(29)) - stdi gr30,@(gr28,#REG_GR(30)) - - movsg tbr ,gr30 - sti gr30,@(gr28,#REG_TBR) - movsg pcsr,gr30 - sti gr30,@(gr28,#REG_PC) - movsg psr ,gr30 - sti gr30,@(gr28,#REG_PSR) - movsg isr ,gr30 - sti gr30,@(gr28,#REG_ISR) - movsg ccr ,gr30 - movsg cccr,gr31 - stdi gr30,@(gr28,#REG_CCR) - movsg lr ,gr30 - movsg lcr ,gr31 - stdi gr30,@(gr28,#REG_LR) - sti gr0 ,@(gr28,#REG_SYSCALLNO) - movsg scr2,gr28 -#endif - - rett #0 - - # return via break.S -__entry_return_singlestep: - movgs gr2,ccr - lddi @(gr28,#REG_GR(2)) ,gr2 - ldi @(gr28,#REG_SP) ,sp - ldi @(gr28,#REG_GR(28)),gr28 - LEDS 0x67ff - break - .globl __entry_return_singlestep_breaks_here -__entry_return_singlestep_breaks_here: - nop - - -############################################################################### -# -# return to a process interrupted in kernel space -# - we need to consider preemption if that is enabled -# -############################################################################### - .balign L1_CACHE_BYTES -__entry_return_from_kernel_exception: - LEDS 0x6302 - movsg psr,gr23 - ori gr23,#PSR_PIL_14,gr23 - movgs gr23,psr - bra __entry_return_direct - - .balign L1_CACHE_BYTES -__entry_return_from_kernel_interrupt: - LEDS 0x6303 - movsg psr,gr23 - ori gr23,#PSR_PIL_14,gr23 - movgs gr23,psr - -#ifdef CONFIG_PREEMPT - ldi @(gr15,#TI_PRE_COUNT),gr5 - subicc gr5,#0,gr0,icc0 - beq icc0,#0,__entry_return_direct - - subcc gr0,gr0,gr0,icc2 /* set Z and clear C */ - call preempt_schedule_irq -#endif - bra __entry_return_direct - - -############################################################################### -# -# perform work that needs to be done immediately before resumption -# -############################################################################### - .globl __entry_return_from_user_exception - .balign L1_CACHE_BYTES -__entry_return_from_user_exception: - LEDS 0x6501 - -__entry_resume_userspace: - # make sure we don't miss an interrupt setting need_resched or sigpending between - # sampling and the RETT - movsg psr,gr23 - ori gr23,#PSR_PIL_14,gr23 - movgs gr23,psr - -__entry_return_from_user_interrupt: - LEDS 0x6402 - ldi @(gr15,#TI_FLAGS),gr4 - andicc gr4,#_TIF_WORK_MASK,gr0,icc0 - beq icc0,#1,__entry_return_direct - -__entry_work_pending: - LEDS 0x6404 - andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0 - beq icc0,#1,__entry_work_notifysig - -__entry_work_resched: - LEDS 0x6408 - movsg psr,gr23 - andi gr23,#~PSR_PIL,gr23 - movgs gr23,psr - call schedule - movsg psr,gr23 - ori gr23,#PSR_PIL_14,gr23 - movgs gr23,psr - - LEDS 0x6401 - ldi @(gr15,#TI_FLAGS),gr4 - andicc gr4,#_TIF_WORK_MASK,gr0,icc0 - beq icc0,#1,__entry_return_direct - andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0 - bne icc0,#1,__entry_work_resched - -__entry_work_notifysig: - LEDS 0x6410 - ori.p gr4,#0,gr8 - call do_notify_resume - bra __entry_resume_userspace - - # perform syscall entry tracing -__syscall_trace_entry: - LEDS 0x6320 - call syscall_trace_entry - - lddi.p @(gr28,#REG_GR(8)) ,gr8 - ori gr8,#0,gr7 ; syscall_trace_entry() returned new syscallno - lddi @(gr28,#REG_GR(10)),gr10 - lddi.p @(gr28,#REG_GR(12)),gr12 - - subicc gr7,#nr_syscalls,gr0,icc0 - bnc icc0,#0,__syscall_badsys - bra __syscall_call - - # perform syscall exit tracing -__syscall_exit_work: - LEDS 0x6340 - andicc gr22,#PSR_PS,gr0,icc1 ; don't handle on return to kernel mode - andicc.p gr4,#_TIF_SYSCALL_TRACE,gr0,icc0 - bne icc1,#0,__entry_return_direct - beq icc0,#1,__entry_work_pending - - movsg psr,gr23 - andi gr23,#~PSR_PIL,gr23 ; could let syscall_trace_exit() call schedule() - movgs gr23,psr - - call syscall_trace_exit - bra __entry_resume_userspace - -__syscall_badsys: - LEDS 0x6380 - setlos #-ENOSYS,gr8 - sti gr8,@(gr28,#REG_GR(8)) ; save return value - bra __entry_resume_userspace - - -############################################################################### -# -# syscall vector table -# -############################################################################### - .section .rodata -ALIGN - .globl sys_call_table -sys_call_table: - .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ - .long sys_exit - .long sys_fork - .long sys_read - .long sys_write - .long sys_open /* 5 */ - .long sys_close - .long sys_waitpid - .long sys_creat - .long sys_link - .long sys_unlink /* 10 */ - .long sys_execve - .long sys_chdir - .long sys_time - .long sys_mknod - .long sys_chmod /* 15 */ - .long sys_lchown16 - .long sys_ni_syscall /* old break syscall holder */ - .long sys_stat - .long sys_lseek - .long sys_getpid /* 20 */ - .long sys_mount - .long sys_oldumount - .long sys_setuid16 - .long sys_getuid16 - .long sys_ni_syscall // sys_stime /* 25 */ - .long sys_ptrace - .long sys_alarm - .long sys_fstat - .long sys_pause - .long sys_utime /* 30 */ - .long sys_ni_syscall /* old stty syscall holder */ - .long sys_ni_syscall /* old gtty syscall holder */ - .long sys_access - .long sys_nice - .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ - .long sys_sync - .long sys_kill - .long sys_rename - .long sys_mkdir - .long sys_rmdir /* 40 */ - .long sys_dup - .long sys_pipe - .long sys_times - .long sys_ni_syscall /* old prof syscall holder */ - .long sys_brk /* 45 */ - .long sys_setgid16 - .long sys_getgid16 - .long sys_ni_syscall // sys_signal - .long sys_geteuid16 - .long sys_getegid16 /* 50 */ - .long sys_acct - .long sys_umount /* recycled never used phys( */ - .long sys_ni_syscall /* old lock syscall holder */ - .long sys_ioctl - .long sys_fcntl /* 55 */ - .long sys_ni_syscall /* old mpx syscall holder */ - .long sys_setpgid - .long sys_ni_syscall /* old ulimit syscall holder */ - .long sys_ni_syscall /* old old uname syscall */ - .long sys_umask /* 60 */ - .long sys_chroot - .long sys_ustat - .long sys_dup2 - .long sys_getppid - .long sys_getpgrp /* 65 */ - .long sys_setsid - .long sys_sigaction - .long sys_ni_syscall // sys_sgetmask - .long sys_ni_syscall // sys_ssetmask - .long sys_setreuid16 /* 70 */ - .long sys_setregid16 - .long sys_sigsuspend - .long sys_ni_syscall // sys_sigpending - .long sys_sethostname - .long sys_setrlimit /* 75 */ - .long sys_ni_syscall // sys_old_getrlimit - .long sys_getrusage - .long sys_gettimeofday - .long sys_settimeofday - .long sys_getgroups16 /* 80 */ - .long sys_setgroups16 - .long sys_ni_syscall /* old_select slot */ - .long sys_symlink - .long sys_lstat - .long sys_readlink /* 85 */ - .long sys_uselib - .long sys_swapon - .long sys_reboot - .long sys_ni_syscall // old_readdir - .long sys_ni_syscall /* 90 */ /* old_mmap slot */ - .long sys_munmap - .long sys_truncate - .long sys_ftruncate - .long sys_fchmod - .long sys_fchown16 /* 95 */ - .long sys_getpriority - .long sys_setpriority - .long sys_ni_syscall /* old profil syscall holder */ - .long sys_statfs - .long sys_fstatfs /* 100 */ - .long sys_ni_syscall /* ioperm for i386 */ - .long sys_socketcall - .long sys_syslog - .long sys_setitimer - .long sys_getitimer /* 105 */ - .long sys_newstat - .long sys_newlstat - .long sys_newfstat - .long sys_ni_syscall /* obsolete olduname( syscall */ - .long sys_ni_syscall /* iopl for i386 */ /* 110 */ - .long sys_vhangup - .long sys_ni_syscall /* obsolete idle( syscall */ - .long sys_ni_syscall /* vm86old for i386 */ - .long sys_wait4 - .long sys_swapoff /* 115 */ - .long sys_sysinfo - .long sys_ipc - .long sys_fsync - .long sys_sigreturn - .long sys_clone /* 120 */ - .long sys_setdomainname - .long sys_newuname - .long sys_ni_syscall /* old "cacheflush" */ - .long sys_adjtimex - .long sys_mprotect /* 125 */ - .long sys_sigprocmask - .long sys_ni_syscall /* old "create_module" */ - .long sys_init_module - .long sys_delete_module - .long sys_ni_syscall /* old "get_kernel_syms" */ - .long sys_quotactl - .long sys_getpgid - .long sys_fchdir - .long sys_bdflush - .long sys_sysfs /* 135 */ - .long sys_personality - .long sys_ni_syscall /* for afs_syscall */ - .long sys_setfsuid16 - .long sys_setfsgid16 - .long sys_llseek /* 140 */ - .long sys_getdents - .long sys_select - .long sys_flock - .long sys_msync - .long sys_readv /* 145 */ - .long sys_writev - .long sys_getsid - .long sys_fdatasync - .long sys_sysctl - .long sys_mlock /* 150 */ - .long sys_munlock - .long sys_mlockall - .long sys_munlockall - .long sys_sched_setparam - .long sys_sched_getparam /* 155 */ - .long sys_sched_setscheduler - .long sys_sched_getscheduler - .long sys_sched_yield - .long sys_sched_get_priority_max - .long sys_sched_get_priority_min /* 160 */ - .long sys_sched_rr_get_interval - .long sys_nanosleep - .long sys_mremap - .long sys_setresuid16 - .long sys_getresuid16 /* 165 */ - .long sys_ni_syscall /* for vm86 */ - .long sys_ni_syscall /* Old sys_query_module */ - .long sys_poll - .long sys_ni_syscall /* Old nfsservctl */ - .long sys_setresgid16 /* 170 */ - .long sys_getresgid16 - .long sys_prctl - .long sys_rt_sigreturn - .long sys_rt_sigaction - .long sys_rt_sigprocmask /* 175 */ - .long sys_rt_sigpending - .long sys_rt_sigtimedwait - .long sys_rt_sigqueueinfo - .long sys_rt_sigsuspend - .long sys_pread64 /* 180 */ - .long sys_pwrite64 - .long sys_chown16 - .long sys_getcwd - .long sys_capget - .long sys_capset /* 185 */ - .long sys_sigaltstack - .long sys_sendfile - .long sys_ni_syscall /* streams1 */ - .long sys_ni_syscall /* streams2 */ - .long sys_vfork /* 190 */ - .long sys_getrlimit - .long sys_mmap2 - .long sys_truncate64 - .long sys_ftruncate64 - .long sys_stat64 /* 195 */ - .long sys_lstat64 - .long sys_fstat64 - .long sys_lchown - .long sys_getuid - .long sys_getgid /* 200 */ - .long sys_geteuid - .long sys_getegid - .long sys_setreuid - .long sys_setregid - .long sys_getgroups /* 205 */ - .long sys_setgroups - .long sys_fchown - .long sys_setresuid - .long sys_getresuid - .long sys_setresgid /* 210 */ - .long sys_getresgid - .long sys_chown - .long sys_setuid - .long sys_setgid - .long sys_setfsuid /* 215 */ - .long sys_setfsgid - .long sys_pivot_root - .long sys_mincore - .long sys_madvise - .long sys_getdents64 /* 220 */ - .long sys_fcntl64 - .long sys_ni_syscall /* reserved for TUX */ - .long sys_ni_syscall /* Reserved for Security */ - .long sys_gettid - .long sys_readahead /* 225 */ - .long sys_setxattr - .long sys_lsetxattr - .long sys_fsetxattr - .long sys_getxattr - .long sys_lgetxattr /* 230 */ - .long sys_fgetxattr - .long sys_listxattr - .long sys_llistxattr - .long sys_flistxattr - .long sys_removexattr /* 235 */ - .long sys_lremovexattr - .long sys_fremovexattr - .long sys_tkill - .long sys_sendfile64 - .long sys_futex /* 240 */ - .long sys_sched_setaffinity - .long sys_sched_getaffinity - .long sys_ni_syscall //sys_set_thread_area - .long sys_ni_syscall //sys_get_thread_area - .long sys_io_setup /* 245 */ - .long sys_io_destroy - .long sys_io_getevents - .long sys_io_submit - .long sys_io_cancel - .long sys_fadvise64 /* 250 */ - .long sys_ni_syscall - .long sys_exit_group - .long sys_lookup_dcookie - .long sys_epoll_create - .long sys_epoll_ctl /* 255 */ - .long sys_epoll_wait - .long sys_remap_file_pages - .long sys_set_tid_address - .long sys_timer_create - .long sys_timer_settime /* 260 */ - .long sys_timer_gettime - .long sys_timer_getoverrun - .long sys_timer_delete - .long sys_clock_settime - .long sys_clock_gettime /* 265 */ - .long sys_clock_getres - .long sys_clock_nanosleep - .long sys_statfs64 - .long sys_fstatfs64 - .long sys_tgkill /* 270 */ - .long sys_utimes - .long sys_fadvise64_64 - .long sys_ni_syscall /* sys_vserver */ - .long sys_mbind - .long sys_get_mempolicy - .long sys_set_mempolicy - .long sys_mq_open - .long sys_mq_unlink - .long sys_mq_timedsend - .long sys_mq_timedreceive /* 280 */ - .long sys_mq_notify - .long sys_mq_getsetattr - .long sys_ni_syscall /* reserved for kexec */ - .long sys_waitid - .long sys_ni_syscall /* 285 */ /* available */ - .long sys_add_key - .long sys_request_key - .long sys_keyctl - .long sys_ioprio_set - .long sys_ioprio_get /* 290 */ - .long sys_inotify_init - .long sys_inotify_add_watch - .long sys_inotify_rm_watch - .long sys_migrate_pages - .long sys_openat /* 295 */ - .long sys_mkdirat - .long sys_mknodat - .long sys_fchownat - .long sys_futimesat - .long sys_fstatat64 /* 300 */ - .long sys_unlinkat - .long sys_renameat - .long sys_linkat - .long sys_symlinkat - .long sys_readlinkat /* 305 */ - .long sys_fchmodat - .long sys_faccessat - .long sys_pselect6 - .long sys_ppoll - .long sys_unshare /* 310 */ - .long sys_set_robust_list - .long sys_get_robust_list - .long sys_splice - .long sys_sync_file_range - .long sys_tee /* 315 */ - .long sys_vmsplice - .long sys_move_pages - .long sys_getcpu - .long sys_epoll_pwait - .long sys_utimensat /* 320 */ - .long sys_signalfd - .long sys_timerfd_create - .long sys_eventfd - .long sys_fallocate - .long sys_timerfd_settime /* 325 */ - .long sys_timerfd_gettime - .long sys_signalfd4 - .long sys_eventfd2 - .long sys_epoll_create1 - .long sys_dup3 /* 330 */ - .long sys_pipe2 - .long sys_inotify_init1 - .long sys_preadv - .long sys_pwritev - .long sys_rt_tgsigqueueinfo /* 335 */ - .long sys_perf_event_open - .long sys_setns - -syscall_table_size = (. - sys_call_table) |