summaryrefslogtreecommitdiffstats
path: root/arch/blackfin/mach-common/entry.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/blackfin/mach-common/entry.S')
-rw-r--r--arch/blackfin/mach-common/entry.S1711
1 files changed, 0 insertions, 1711 deletions
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
deleted file mode 100644
index 8d9431e22e8c..000000000000
--- a/arch/blackfin/mach-common/entry.S
+++ /dev/null
@@ -1,1711 +0,0 @@
-/*
- * Contains the system-call and fault low-level handling routines.
- * This also contains the timer-interrupt handler, as well as all
- * interrupts and faults that can result in a task-switch.
- *
- * Copyright 2005-2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-/* NOTE: This code handles signal-recognition, which happens every time
- * after a timer-interrupt and after each system call.
- */
-
-#include <linux/init.h>
-#include <linux/linkage.h>
-#include <linux/unistd.h>
-#include <asm/blackfin.h>
-#include <asm/errno.h>
-#include <asm/fixed_code.h>
-#include <asm/thread_info.h> /* TIF_NEED_RESCHED */
-#include <asm/asm-offsets.h>
-#include <asm/trace.h>
-#include <asm/traps.h>
-
-#include <asm/context.S>
-
-
-#ifdef CONFIG_EXCPT_IRQ_SYSC_L1
-.section .l1.text
-#else
-.text
-#endif
-
-/* Slightly simplified and streamlined entry point for CPLB misses.
- * This one does not lower the level to IRQ5, and thus can be used to
- * patch up CPLB misses on the kernel stack.
- */
-#if ANOMALY_05000261
-#define _ex_dviol _ex_workaround_261
-#define _ex_dmiss _ex_workaround_261
-#define _ex_dmult _ex_workaround_261
-
-ENTRY(_ex_workaround_261)
- /*
- * Work around an anomaly: if we see a new DCPLB fault, return
- * without doing anything. Then, if we get the same fault again,
- * handle it.
- */
- P4 = R7; /* Store EXCAUSE */
-
- GET_PDA(p5, r7);
- r7 = [p5 + PDA_LFRETX];
- r6 = retx;
- [p5 + PDA_LFRETX] = r6;
- cc = r6 == r7;
- if !cc jump _bfin_return_from_exception;
- /* fall through */
- R7 = P4;
- R6 = VEC_CPLB_M; /* Data CPLB Miss */
- cc = R6 == R7;
- if cc jump _ex_dcplb_miss (BP);
-#ifdef CONFIG_MPU
- R6 = VEC_CPLB_VL; /* Data CPLB Violation */
- cc = R6 == R7;
- if cc jump _ex_dcplb_viol (BP);
-#endif
- /* Handle Data CPLB Protection Violation
- * and Data CPLB Multiple Hits - Linux Trap Zero
- */
- jump _ex_trap_c;
-ENDPROC(_ex_workaround_261)
-
-#else
-#ifdef CONFIG_MPU
-#define _ex_dviol _ex_dcplb_viol
-#else
-#define _ex_dviol _ex_trap_c
-#endif
-#define _ex_dmiss _ex_dcplb_miss
-#define _ex_dmult _ex_trap_c
-#endif
-
-
-ENTRY(_ex_dcplb_viol)
-ENTRY(_ex_dcplb_miss)
-ENTRY(_ex_icplb_miss)
- (R7:6,P5:4) = [sp++];
- /* We leave the previously pushed ASTAT on the stack. */
- SAVE_CONTEXT_CPLB
-
- /* We must load R1 here, _before_ DEBUG_HWTRACE_SAVE, since that
- * will change the stack pointer. */
- R0 = SEQSTAT;
- R1 = SP;
-
- DEBUG_HWTRACE_SAVE(p5, r7)
-
- sp += -12;
- call _cplb_hdr;
- sp += 12;
- CC = R0 == 0;
- IF !CC JUMP _handle_bad_cplb;
-
-#ifdef CONFIG_DEBUG_DOUBLEFAULT
- /* While we were processing this, did we double fault? */
- r7 = SEQSTAT; /* reason code is in bit 5:0 */
- r6.l = lo(SEQSTAT_EXCAUSE);
- r6.h = hi(SEQSTAT_EXCAUSE);
- r7 = r7 & r6;
- r6 = 0x25;
- CC = R7 == R6;
- if CC JUMP _double_fault;
-#endif
-
- DEBUG_HWTRACE_RESTORE(p5, r7)
- RESTORE_CONTEXT_CPLB
- ASTAT = [SP++];
- SP = EX_SCRATCH_REG;
- rtx;
-ENDPROC(_ex_icplb_miss)
-
-ENTRY(_ex_syscall)
- raise 15; /* invoked by TRAP #0, for sys call */
- jump.s _bfin_return_from_exception;
-ENDPROC(_ex_syscall)
-
-ENTRY(_ex_single_step)
- /* If we just returned from an interrupt, the single step event is
- for the RTI instruction. */
- r7 = retx;
- r6 = reti;
- cc = r7 == r6;
- if cc jump _bfin_return_from_exception;
-
-#ifdef CONFIG_KGDB
- /* Don't do single step in hardware exception handler */
- p5.l = lo(IPEND);
- p5.h = hi(IPEND);
- r6 = [p5];
- cc = bittst(r6, 4);
- if cc jump _bfin_return_from_exception;
- cc = bittst(r6, 5);
- if cc jump _bfin_return_from_exception;
-
- /* skip single step if current interrupt priority is higher than
- * that of the first instruction, from which gdb starts single step */
- r6 >>= 6;
- r7 = 10;
-.Lfind_priority_start:
- cc = bittst(r6, 0);
- if cc jump .Lfind_priority_done;
- r6 >>= 1;
- r7 += -1;
- cc = r7 == 0;
- if cc jump .Lfind_priority_done;
- jump.s .Lfind_priority_start;
-.Lfind_priority_done:
- p4.l = _kgdb_single_step;
- p4.h = _kgdb_single_step;
- r6 = [p4];
- cc = r6 == 0;
- if cc jump .Ldo_single_step;
- r6 += -1;
- cc = r6 < r7;
- if cc jump 1f;
-.Ldo_single_step:
-#else
- /* If we were in user mode, do the single step normally. */
- p5.l = lo(IPEND);
- p5.h = hi(IPEND);
- r6 = [p5];
- r7 = 0xffe0 (z);
- r7 = r7 & r6;
- cc = r7 == 0;
- if !cc jump 1f;
-#endif
-#ifdef CONFIG_EXACT_HWERR
- /* Read the ILAT, and to check to see if the process we are
- * single stepping caused a previous hardware error
- * If so, do not single step, (which lowers to IRQ5, and makes
- * us miss the error).
- */
- p5.l = lo(ILAT);
- p5.h = hi(ILAT);
- r7 = [p5];
- cc = bittst(r7, EVT_IVHW_P);
- if cc jump 1f;
-#endif
- /* Single stepping only a single instruction, so clear the trace
- * bit here. */
- r7 = syscfg;
- bitclr (r7, SYSCFG_SSSTEP_P);
- syscfg = R7;
- jump _ex_trap_c;
-
-1:
- /*
- * We were in an interrupt handler. By convention, all of them save
- * SYSCFG with their first instruction, so by checking whether our
- * RETX points at the entry point, we can determine whether to allow
- * a single step, or whether to clear SYSCFG.
- *
- * First, find out the interrupt level and the event vector for it.
- */
- p5.l = lo(EVT0);
- p5.h = hi(EVT0);
- p5 += -4;
-2:
- r7 = rot r7 by -1;
- p5 += 4;
- if !cc jump 2b;
-
- /* What we actually do is test for the _second_ instruction in the
- * IRQ handler. That way, if there are insns following the restore
- * of SYSCFG after leaving the handler, we will not turn off SYSCFG
- * for them. */
-
- r7 = [p5];
- r7 += 2;
- r6 = RETX;
- cc = R7 == R6;
- if !cc jump _bfin_return_from_exception;
-
- r7 = syscfg;
- bitclr (r7, SYSCFG_SSSTEP_P); /* Turn off single step */
- syscfg = R7;
-
- /* Fall through to _bfin_return_from_exception. */
-ENDPROC(_ex_single_step)
-
-ENTRY(_bfin_return_from_exception)
-#if ANOMALY_05000257
- R7=LC0;
- LC0=R7;
- R7=LC1;
- LC1=R7;
-#endif
-
-#ifdef CONFIG_DEBUG_DOUBLEFAULT
- /* While we were processing the current exception,
- * did we cause another, and double fault?
- */
- r7 = SEQSTAT; /* reason code is in bit 5:0 */
- r6.l = lo(SEQSTAT_EXCAUSE);
- r6.h = hi(SEQSTAT_EXCAUSE);
- r7 = r7 & r6;
- r6 = VEC_UNCOV;
- CC = R7 == R6;
- if CC JUMP _double_fault;
-#endif
-
- (R7:6,P5:4) = [sp++];
- ASTAT = [sp++];
- sp = EX_SCRATCH_REG;
- rtx;
-ENDPROC(_bfin_return_from_exception)
-
-ENTRY(_handle_bad_cplb)
- DEBUG_HWTRACE_RESTORE(p5, r7)
- /* To get here, we just tried and failed to change a CPLB
- * so, handle things in trap_c (C code), by lowering to
- * IRQ5, just like we normally do. Since this is not a
- * "normal" return path, we have a do a lot of stuff to
- * the stack to get ready so, we can fall through - we
- * need to make a CPLB exception look like a normal exception
- */
- RESTORE_CONTEXT_CPLB
- /* ASTAT is still on the stack, where it is needed. */
- [--sp] = (R7:6,P5:4);
-
-ENTRY(_ex_replaceable)
- nop;
-
-ENTRY(_ex_trap_c)
- /* The only thing that has been saved in this context is
- * (R7:6,P5:4), ASTAT & SP - don't use anything else
- */
-
- GET_PDA(p5, r6);
-
- /* Make sure we are not in a double fault */
- p4.l = lo(IPEND);
- p4.h = hi(IPEND);
- r7 = [p4];
- CC = BITTST (r7, 5);
- if CC jump _double_fault;
- [p5 + PDA_EXIPEND] = r7;
-
- /* Call C code (trap_c) to handle the exception, which most
- * likely involves sending a signal to the current process.
- * To avoid double faults, lower our priority to IRQ5 first.
- */
- r7.h = _exception_to_level5;
- r7.l = _exception_to_level5;
- p4.l = lo(EVT5);
- p4.h = hi(EVT5);
- [p4] = r7;
- csync;
-
- /*
- * Save these registers, as they are only valid in exception context
- * (where we are now - as soon as we defer to IRQ5, they can change)
- * DCPLB_STATUS and ICPLB_STATUS are also only valid in EVT3,
- * but they are not very interesting, so don't save them
- */
-
- p4.l = lo(DCPLB_FAULT_ADDR);
- p4.h = hi(DCPLB_FAULT_ADDR);
- r7 = [p4];
- [p5 + PDA_DCPLB] = r7;
-
- p4.l = lo(ICPLB_FAULT_ADDR);
- p4.h = hi(ICPLB_FAULT_ADDR);
- r6 = [p4];
- [p5 + PDA_ICPLB] = r6;
-
- r6 = retx;
- [p5 + PDA_RETX] = r6;
-
- r6 = SEQSTAT;
- [p5 + PDA_SEQSTAT] = r6;
-
- /* Save the state of single stepping */
- r6 = SYSCFG;
- [p5 + PDA_SYSCFG] = r6;
- /* Clear it while we handle the exception in IRQ5 mode */
- BITCLR(r6, SYSCFG_SSSTEP_P);
- SYSCFG = r6;
-
- /* Save the current IMASK, since we change in order to jump to level 5 */
- cli r6;
- [p5 + PDA_EXIMASK] = r6;
-
- p4.l = lo(SAFE_USER_INSTRUCTION);
- p4.h = hi(SAFE_USER_INSTRUCTION);
- retx = p4;
-
- /* Disable all interrupts, but make sure level 5 is enabled so
- * we can switch to that level.
- */
- r6 = 0x3f;
- sti r6;
-
- /* In case interrupts are disabled IPEND[4] (global interrupt disable bit)
- * clear it (re-enabling interrupts again) by the special sequence of pushing
- * RETI onto the stack. This way we can lower ourselves to IVG5 even if the
- * exception was taken after the interrupt handler was called but before it
- * got a chance to enable global interrupts itself.
- */
- [--sp] = reti;
- sp += 4;
-
- raise 5;
- jump.s _bfin_return_from_exception;
-ENDPROC(_ex_trap_c)
-
-/* We just realized we got an exception, while we were processing a different
- * exception. This is a unrecoverable event, so crash.
- * Note: this cannot be ENTRY() as we jump here with "if cc jump" ...
- */
-ENTRY(_double_fault)
- /* Turn caches & protection off, to ensure we don't get any more
- * double exceptions
- */
-
- P4.L = LO(IMEM_CONTROL);
- P4.H = HI(IMEM_CONTROL);
-
- R5 = [P4]; /* Control Register*/
- BITCLR(R5,ENICPLB_P);
- CSYNC; /* Disabling of CPLBs should be proceeded by a CSYNC */
- [P4] = R5;
- SSYNC;
-
- P4.L = LO(DMEM_CONTROL);
- P4.H = HI(DMEM_CONTROL);
- R5 = [P4];
- BITCLR(R5,ENDCPLB_P);
- CSYNC; /* Disabling of CPLBs should be proceeded by a CSYNC */
- [P4] = R5;
- SSYNC;
-
- /* Fix up the stack */
- (R7:6,P5:4) = [sp++];
- ASTAT = [sp++];
- SP = EX_SCRATCH_REG;
-
- /* We should be out of the exception stack, and back down into
- * kernel or user space stack
- */
- SAVE_ALL_SYS
-
- /* The dumping functions expect the return address in the RETI
- * slot. */
- r6 = retx;
- [sp + PT_PC] = r6;
-
- r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
- SP += -12;
- pseudo_long_call _double_fault_c, p5;
- SP += 12;
-.L_double_fault_panic:
- JUMP .L_double_fault_panic
-
-ENDPROC(_double_fault)
-
-ENTRY(_exception_to_level5)
- SAVE_ALL_SYS
-
- GET_PDA(p5, r7); /* Fetch current PDA */
- r6 = [p5 + PDA_RETX];
- [sp + PT_PC] = r6;
-
- r6 = [p5 + PDA_SYSCFG];
- [sp + PT_SYSCFG] = r6;
-
- r6 = [p5 + PDA_SEQSTAT]; /* Read back seqstat */
- [sp + PT_SEQSTAT] = r6;
-
- /* Restore the hardware error vector. */
- r7.h = _evt_ivhw;
- r7.l = _evt_ivhw;
- p4.l = lo(EVT5);
- p4.h = hi(EVT5);
- [p4] = r7;
- csync;
-
-#ifdef CONFIG_DEBUG_DOUBLEFAULT
- /* Now that we have the hardware error vector programmed properly
- * we can re-enable interrupts (IPEND[4]), so if the _trap_c causes
- * another hardware error, we can catch it (self-nesting).
- */
- [--sp] = reti;
- sp += 4;
-#endif
-
- r7 = [p5 + PDA_EXIPEND] /* Read the IPEND from the Exception state */
- [sp + PT_IPEND] = r7; /* Store IPEND onto the stack */
-
- r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
- SP += -12;
- pseudo_long_call _trap_c, p4;
- SP += 12;
-
- /* If interrupts were off during the exception (IPEND[4] = 1), turn them off
- * before we return.
- */
- CC = BITTST(r7, EVT_IRPTEN_P)
- if !CC jump 1f;
- /* this will load a random value into the reti register - but that is OK,
- * since we do restore it to the correct value in the 'RESTORE_ALL_SYS' macro
- */
- sp += -4;
- reti = [sp++];
-1:
- /* restore the interrupt mask (IMASK) */
- r6 = [p5 + PDA_EXIMASK];
- sti r6;
-
- call _ret_from_exception;
- RESTORE_ALL_SYS
- rti;
-ENDPROC(_exception_to_level5)
-
-ENTRY(_trap) /* Exception: 4th entry into system event table(supervisor mode)*/
- /* Since the kernel stack can be anywhere, it's not guaranteed to be
- * covered by a CPLB. Switch to an exception stack; use RETN as a
- * scratch register (for want of a better option).
- */
- EX_SCRATCH_REG = sp;
- GET_PDA_SAFE(sp);
- sp = [sp + PDA_EXSTACK];
- /* Try to deal with syscalls quickly. */
- [--sp] = ASTAT;
- [--sp] = (R7:6,P5:4);
-
- ANOMALY_283_315_WORKAROUND(p5, r7)
-
-#ifdef CONFIG_EXACT_HWERR
- /* Make sure all pending read/writes complete. This will ensure any
- * accesses which could cause hardware errors completes, and signal
- * the the hardware before we do something silly, like crash the
- * kernel. We don't need to work around anomaly 05000312, since
- * we are already atomic
- */
- ssync;
-#endif
-
-#ifdef CONFIG_DEBUG_DOUBLEFAULT
- /*
- * Save these registers, as they are only valid in exception context
- * (where we are now - as soon as we defer to IRQ5, they can change)
- * DCPLB_STATUS and ICPLB_STATUS are also only valid in EVT3,
- * but they are not very interesting, so don't save them
- */
-
- GET_PDA(p5, r7);
- p4.l = lo(DCPLB_FAULT_ADDR);
- p4.h = hi(DCPLB_FAULT_ADDR);
- r7 = [p4];
- [p5 + PDA_DF_DCPLB] = r7;
-
- p4.l = lo(ICPLB_FAULT_ADDR);
- p4.h = hi(ICPLB_FAULT_ADDR);
- r7 = [p4];
- [p5 + PDA_DF_ICPLB] = r7;
-
- r7 = retx;
- [p5 + PDA_DF_RETX] = r7;
-
- r7 = SEQSTAT; /* reason code is in bit 5:0 */
- [p5 + PDA_DF_SEQSTAT] = r7;
-#else
- r7 = SEQSTAT; /* reason code is in bit 5:0 */
-#endif
- r6.l = lo(SEQSTAT_EXCAUSE);
- r6.h = hi(SEQSTAT_EXCAUSE);
- r7 = r7 & r6;
- p5.h = _ex_table;
- p5.l = _ex_table;
- p4 = r7;
- p5 = p5 + (p4 << 2);
- p4 = [p5];
- jump (p4);
-
-.Lbadsys:
- r7 = -ENOSYS; /* signextending enough */
- [sp + PT_R0] = r7; /* return value from system call */
- jump .Lsyscall_really_exit;
-ENDPROC(_trap)
-
-ENTRY(_system_call)
- /* Store IPEND */
- p2.l = lo(IPEND);
- p2.h = hi(IPEND);
- csync;
- r0 = [p2];
- [sp + PT_IPEND] = r0;
-
- /* Store RETS for now */
- r0 = rets;
- [sp + PT_RESERVED] = r0;
- /* Set the stack for the current process */
- r7 = sp;
- r6.l = lo(ALIGN_PAGE_MASK);
- r6.h = hi(ALIGN_PAGE_MASK);
- r7 = r7 & r6; /* thread_info */
- p2 = r7;
- p2 = [p2];
-
- [p2+(TASK_THREAD+THREAD_KSP)] = sp;
-#ifdef CONFIG_IPIPE
- r0 = sp;
- SP += -12;
- pseudo_long_call ___ipipe_syscall_root, p0;
- SP += 12;
- cc = r0 == 1;
- if cc jump .Lsyscall_really_exit;
- cc = r0 == -1;
- if cc jump .Lresume_userspace;
- r3 = [sp + PT_R3];
- r4 = [sp + PT_R4];
- p0 = [sp + PT_ORIG_P0];
-#endif /* CONFIG_IPIPE */
-
- /* are we tracing syscalls?*/
- r7 = sp;
- r6.l = lo(ALIGN_PAGE_MASK);
- r6.h = hi(ALIGN_PAGE_MASK);
- r7 = r7 & r6;
- p2 = r7;
- r7 = [p2+TI_FLAGS];
- CC = BITTST(r7,TIF_SYSCALL_TRACE);
- if CC JUMP _sys_trace;
- CC = BITTST(r7,TIF_SINGLESTEP);
- if CC JUMP _sys_trace;
-
- /* Make sure the system call # is valid */
- p4 = __NR_syscall;
- /* System call number is passed in P0 */
- cc = p4 <= p0;
- if cc jump .Lbadsys;
-
- /* Execute the appropriate system call */
-
- p4 = p0;
- p5.l = _sys_call_table;
- p5.h = _sys_call_table;
- p5 = p5 + (p4 << 2);
- r0 = [sp + PT_R0];
- r1 = [sp + PT_R1];
- r2 = [sp + PT_R2];
- p5 = [p5];
-
- [--sp] = r5;
- [--sp] = r4;
- [--sp] = r3;
- SP += -12;
- call (p5);
- SP += 24;
- [sp + PT_R0] = r0;
-
-.Lresume_userspace:
- r7 = sp;
- r4.l = lo(ALIGN_PAGE_MASK);
- r4.h = hi(ALIGN_PAGE_MASK);
- r7 = r7 & r4; /* thread_info->flags */
- p5 = r7;
-.Lresume_userspace_1:
- /* Disable interrupts. */
- [--sp] = reti;
- reti = [sp++];
-
- r7 = [p5 + TI_FLAGS];
- r4.l = lo(_TIF_WORK_MASK);
- r4.h = hi(_TIF_WORK_MASK);
- r7 = r7 & r4;
-
-.Lsyscall_resched:
-#ifdef CONFIG_IPIPE
- cc = BITTST(r7, TIF_IRQ_SYNC);
- if !cc jump .Lsyscall_no_irqsync;
- /*
- * Clear IPEND[4] manually to undo what resume_userspace_1 just did;
- * we need this so that high priority domain interrupts may still
- * preempt the current domain while the pipeline log is being played
- * back.
- */
- [--sp] = reti;
- SP += 4; /* don't merge with next insn to keep the pattern obvious */
- SP += -12;
- pseudo_long_call ___ipipe_sync_root, p4;
- SP += 12;
- jump .Lresume_userspace_1;
-.Lsyscall_no_irqsync:
-#endif
- cc = BITTST(r7, TIF_NEED_RESCHED);
- if !cc jump .Lsyscall_sigpending;
-
- /* Reenable interrupts. */
- [--sp] = reti;
- sp += 4;
-
- SP += -12;
- pseudo_long_call _schedule, p4;
- SP += 12;
-
- jump .Lresume_userspace_1;
-
-.Lsyscall_sigpending:
- cc = BITTST(r7, TIF_SIGPENDING);
- if cc jump .Lsyscall_do_signals;
- cc = BITTST(r7, TIF_NOTIFY_RESUME);
- if !cc jump .Lsyscall_really_exit;
-.Lsyscall_do_signals:
- /* Reenable interrupts. */
- [--sp] = reti;
- sp += 4;
-
- r0 = sp;
- SP += -12;
- pseudo_long_call _do_notify_resume, p5;
- SP += 12;
-
-.Lsyscall_really_exit:
- r5 = [sp + PT_RESERVED];
- rets = r5;
- rts;
-ENDPROC(_system_call)
-
-/* Do not mark as ENTRY() to avoid error in assembler ...
- * this symbol need not be global anyways, so ...
- */
-_sys_trace:
- r0 = sp;
- pseudo_long_call _syscall_trace_enter, p5;
-
- /* Make sure the system call # is valid */
- p4 = [SP + PT_P0];
- p3 = __NR_syscall;
- cc = p3 <= p4;
- r0 = -ENOSYS;
- if cc jump .Lsys_trace_badsys;
-
- /* Execute the appropriate system call */
- p5.l = _sys_call_table;
- p5.h = _sys_call_table;
- p5 = p5 + (p4 << 2);
- r0 = [sp + PT_R0];
- r1 = [sp + PT_R1];
- r2 = [sp + PT_R2];
- r3 = [sp + PT_R3];
- r4 = [sp + PT_R4];
- r5 = [sp + PT_R5];
- p5 = [p5];
-
- [--sp] = r5;
- [--sp] = r4;
- [--sp] = r3;
- SP += -12;
- call (p5);
- SP += 24;
-.Lsys_trace_badsys:
- [sp + PT_R0] = r0;
-
- r0 = sp;
- pseudo_long_call _syscall_trace_leave, p5;
- jump .Lresume_userspace;
-ENDPROC(_sys_trace)
-
-ENTRY(_resume)
- /*
- * Beware - when entering resume, prev (the current task) is
- * in r0, next (the new task) is in r1.
- */
- p0 = r0;
- p1 = r1;
- [--sp] = rets;
- [--sp] = fp;
- [--sp] = (r7:4, p5:3);
-
- /* save usp */
- p2 = usp;
- [p0+(TASK_THREAD+THREAD_USP)] = p2;
-
- /* save current kernel stack pointer */
- [p0+(TASK_THREAD+THREAD_KSP)] = sp;
-
- /* save program counter */
- r1.l = _new_old_task;
- r1.h = _new_old_task;
- [p0+(TASK_THREAD+THREAD_PC)] = r1;
-
- /* restore the kernel stack pointer */
- sp = [p1+(TASK_THREAD+THREAD_KSP)];
-
- /* restore user stack pointer */
- p0 = [p1+(TASK_THREAD+THREAD_USP)];
- usp = p0;
-
- /* restore pc */
- p0 = [p1+(TASK_THREAD+THREAD_PC)];
- jump (p0);
-
- /*
- * Following code actually lands up in a new (old) task.
- */
-
-_new_old_task:
- (r7:4, p5:3) = [sp++];
- fp = [sp++];
- rets = [sp++];
-
- /*
- * When we come out of resume, r0 carries "old" task, because we are
- * in "new" task.
- */
- rts;
-ENDPROC(_resume)
-
-ENTRY(_ret_from_exception)
-#ifdef CONFIG_IPIPE
- p2.l = _ipipe_percpu_domain;
- p2.h = _ipipe_percpu_domain;
- r0.l = _ipipe_root;
- r0.h = _ipipe_root;
- r2 = [p2];
- cc = r0 == r2;
- if !cc jump 4f; /* not on behalf of the root domain, get out */
-#endif /* CONFIG_IPIPE */
- p2.l = lo(IPEND);
- p2.h = hi(IPEND);
-
- csync;
- r0 = [p2];
- [sp + PT_IPEND] = r0;
-
-1:
- r2 = LO(~0x37) (Z);
- r0 = r2 & r0;
- cc = r0 == 0;
- if !cc jump 4f; /* if not return to user mode, get out */
-
- /* Make sure any pending system call or deferred exception
- * return in ILAT for this process to get executed, otherwise
- * in case context switch happens, system call of
- * first process (i.e in ILAT) will be carried
- * forward to the switched process
- */
-
- p2.l = lo(ILAT);
- p2.h = hi(ILAT);
- r0 = [p2];
- r1 = (EVT_IVG14 | EVT_IVG15) (z);
- r0 = r0 & r1;
- cc = r0 == 0;
- if !cc jump 5f;
-
- /* Set the stack for the current process */
- r7 = sp;
- r4.l = lo(ALIGN_PAGE_MASK);
- r4.h = hi(ALIGN_PAGE_MASK);
- r7 = r7 & r4; /* thread_info->flags */
- p5 = r7;
- r7 = [p5 + TI_FLAGS];
- r4.l = lo(_TIF_WORK_MASK);
- r4.h = hi(_TIF_WORK_MASK);
- r7 = r7 & r4;
- cc = r7 == 0;
- if cc jump 4f;
-
- p0.l = lo(EVT15);
- p0.h = hi(EVT15);
- p1.l = _schedule_and_signal;
- p1.h = _schedule_and_signal;
- [p0] = p1;
- csync;
- raise 15; /* raise evt15 to do signal or reschedule */
-4:
- r0 = syscfg;
- bitclr(r0, SYSCFG_SSSTEP_P); /* Turn off single step */
- syscfg = r0;
-5:
- rts;
-ENDPROC(_ret_from_exception)
-
-#if defined(CONFIG_PREEMPT)
-
-ENTRY(_up_to_irq14)
-#if ANOMALY_05000281 || ANOMALY_05000461
- r0.l = lo(SAFE_USER_INSTRUCTION);
- r0.h = hi(SAFE_USER_INSTRUCTION);
- reti = r0;
-#endif
-
-#ifdef CONFIG_DEBUG_HWERR
- /* enable irq14 & hwerr interrupt, until we transition to _evt_evt14 */
- r0 = (EVT_IVG14 | EVT_IVHW | EVT_IRPTEN | EVT_EVX | EVT_NMI | EVT_RST | EVT_EMU);
-#else
- /* Only enable irq14 interrupt, until we transition to _evt_evt14 */
- r0 = (EVT_IVG14 | EVT_IRPTEN | EVT_EVX | EVT_NMI | EVT_RST | EVT_EMU);
-#endif
- sti r0;
-
- p0.l = lo(EVT14);
- p0.h = hi(EVT14);
- p1.l = _evt_up_evt14;
- p1.h = _evt_up_evt14;
- [p0] = p1;
- csync;
-
- raise 14;
-1:
- jump 1b;
-ENDPROC(_up_to_irq14)
-
-ENTRY(_evt_up_evt14)
-#ifdef CONFIG_DEBUG_HWERR
- r0 = (EVT_IVHW | EVT_IRPTEN | EVT_EVX | EVT_NMI | EVT_RST | EVT_EMU);
- sti r0;
-#else
- cli r0;
-#endif
-#ifdef CONFIG_TRACE_IRQFLAGS
- [--sp] = rets;
- sp += -12;
- call _trace_hardirqs_off;
- sp += 12;
- rets = [sp++];
-#endif
- [--sp] = RETI;
- SP += 4;
-
- /* restore normal evt14 */
- p0.l = lo(EVT14);
- p0.h = hi(EVT14);
- p1.l = _evt_evt14;
- p1.h = _evt_evt14;
- [p0] = p1;
- csync;
-
- rts;
-ENDPROC(_evt_up_evt14)
-
-#endif
-
-#ifdef CONFIG_IPIPE
-
-_resume_kernel_from_int:
- r1 = LO(~0x8000) (Z);
- r1 = r0 & r1;
- r0 = 1;
- r0 = r1 - r0;
- r2 = r1 & r0;
- cc = r2 == 0;
- /* Sync the root stage only from the outer interrupt level. */
- if !cc jump .Lnosync;
- r0.l = ___ipipe_sync_root;
- r0.h = ___ipipe_sync_root;
- [--sp] = reti;
- [--sp] = rets;
- [--sp] = ( r7:4, p5:3 );
- SP += -12;
- call ___ipipe_call_irqtail
- SP += 12;
- ( r7:4, p5:3 ) = [sp++];
- rets = [sp++];
- reti = [sp++];
-.Lnosync:
- rts
-#elif defined(CONFIG_PREEMPT)
-
-_resume_kernel_from_int:
- /* check preempt_count */
- r7 = sp;
- r4.l = lo(ALIGN_PAGE_MASK);
- r4.h = hi(ALIGN_PAGE_MASK);
- r7 = r7 & r4;
- p5 = r7;
- r7 = [p5 + TI_PREEMPT];
- cc = r7 == 0x0;
- if !cc jump .Lreturn_to_kernel;
-.Lneed_schedule:
- r7 = [p5 + TI_FLAGS];
- r4.l = lo(_TIF_WORK_MASK);
- r4.h = hi(_TIF_WORK_MASK);
- r7 = r7 & r4;
- cc = BITTST(r7, TIF_NEED_RESCHED);
- if !cc jump .Lreturn_to_kernel;
- /*
- * let schedule done at level 15, otherwise sheduled process will run
- * at high level and block low level interrupt
- */
- r6 = reti; /* save reti */
- r5.l = .Lkernel_schedule;
- r5.h = .Lkernel_schedule;
- reti = r5;
- rti;
-.Lkernel_schedule:
- [--sp] = rets;
- sp += -12;
- pseudo_long_call _preempt_schedule_irq, p4;
- sp += 12;
- rets = [sp++];
-
- [--sp] = rets;
- sp += -12;
- /* up to irq14 so that reti after restore_all can return to irq15(kernel) */
- pseudo_long_call _up_to_irq14, p4;
- sp += 12;
- rets = [sp++];
-
- reti = r6; /* restore reti so that origin process can return to interrupted point */
-
- jump .Lneed_schedule;
-#else
-
-#define _resume_kernel_from_int .Lreturn_to_kernel
-#endif
-
-ENTRY(_return_from_int)
- /* If someone else already raised IRQ 15, do nothing. */
- csync;
- p2.l = lo(ILAT);
- p2.h = hi(ILAT);
- r0 = [p2];
- cc = bittst (r0, EVT_IVG15_P);
- if cc jump .Lreturn_to_kernel;
-
- /* if not return to user mode, get out */
- p2.l = lo(IPEND);
- p2.h = hi(IPEND);
- r0 = [p2];
- r1 = 0x17(Z);
- r2 = ~r1;
- r2.h = 0;
- r0 = r2 & r0;
- r1 = 1;
- r1 = r0 - r1;
- r2 = r0 & r1;
- cc = r2 == 0;
- if !cc jump _resume_kernel_from_int;
-
- /* Lower the interrupt level to 15. */
- p0.l = lo(EVT15);
- p0.h = hi(EVT15);
- p1.l = _schedule_and_signal_from_int;
- p1.h = _schedule_and_signal_from_int;
- [p0] = p1;
- csync;
-#if ANOMALY_05000281 || ANOMALY_05000461
- r0.l = lo(SAFE_USER_INSTRUCTION);
- r0.h = hi(SAFE_USER_INSTRUCTION);
- reti = r0;
-#endif
- r0 = 0x801f (z);
- STI r0;
- raise 15; /* raise evt15 to do signal or reschedule */
- rti;
-.Lreturn_to_kernel:
- rts;
-ENDPROC(_return_from_int)
-
-ENTRY(_lower_to_irq14)
-#if ANOMALY_05000281 || ANOMALY_05000461
- r0.l = lo(SAFE_USER_INSTRUCTION);
- r0.h = hi(SAFE_USER_INSTRUCTION);
- reti = r0;
-#endif
-
-#ifdef CONFIG_DEBUG_HWERR
- /* enable irq14 & hwerr interrupt, until we transition to _evt_evt14 */
- r0 = (EVT_IVG14 | EVT_IVHW | EVT_IRPTEN | EVT_EVX | EVT_NMI | EVT_RST | EVT_EMU);
-#else
- /* Only enable irq14 interrupt, until we transition to _evt_evt14 */
- r0 = (EVT_IVG14 | EVT_IRPTEN | EVT_EVX | EVT_NMI | EVT_RST | EVT_EMU);
-#endif
- sti r0;
- raise 14;
- rti;
-ENDPROC(_lower_to_irq14)
-
-ENTRY(_evt_evt14)
-#ifdef CONFIG_DEBUG_HWERR
- r0 = (EVT_IVHW | EVT_IRPTEN | EVT_EVX | EVT_NMI | EVT_RST | EVT_EMU);
- sti r0;
-#else
- cli r0;
-#endif
-#ifdef CONFIG_TRACE_IRQFLAGS
- [--sp] = rets;
- sp += -12;
- call _trace_hardirqs_off;
- sp += 12;
- rets = [sp++];
-#endif
- [--sp] = RETI;
- SP += 4;
- rts;
-ENDPROC(_evt_evt14)
-
-ENTRY(_schedule_and_signal_from_int)
- /* To end up here, vector 15 was changed - so we have to change it
- * back.
- */
- p0.l = lo(EVT15);
- p0.h = hi(EVT15);
- p1.l = _evt_system_call;
- p1.h = _evt_system_call;
- [p0] = p1;
- csync;
-
- /* Set orig_p0 to -1 to indicate this isn't the end of a syscall. */
- r0 = -1 (x);
- [sp + PT_ORIG_P0] = r0;
-
- p1 = rets;
- [sp + PT_RESERVED] = p1;
-
-#ifdef CONFIG_TRACE_IRQFLAGS
- /* trace_hardirqs_on() checks if all irqs are disabled. But here IRQ 15
- * is turned on, so disable all irqs. */
- cli r0;
- sp += -12;
- call _trace_hardirqs_on;
- sp += 12;
-#endif
-#ifdef CONFIG_SMP
- GET_PDA(p0, r0); /* Fetch current PDA (can't migrate to other CPU here) */
- r0 = [p0 + PDA_IRQFLAGS];
-#else
- p0.l = _bfin_irq_flags;
- p0.h = _bfin_irq_flags;
- r0 = [p0];
-#endif
- sti r0;
-
- /* finish the userspace "atomic" functions for it */
- r1.l = lo(FIXED_CODE_END);
- r1.h = hi(FIXED_CODE_END);
- r2 = [sp + PT_PC];
- cc = r1 <= r2;
- if cc jump .Lresume_userspace (bp);
-
- r0 = sp;
- sp += -12;
-
- pseudo_long_call _finish_atomic_sections, p5;
- sp += 12;
- jump.s .Lresume_userspace;
-ENDPROC(_schedule_and_signal_from_int)
-
-ENTRY(_schedule_and_signal)
- SAVE_CONTEXT_SYSCALL
- /* To end up here, vector 15 was changed - so we have to change it
- * back.
- */
- p0.l = lo(EVT15);
- p0.h = hi(EVT15);
- p1.l = _evt_system_call;
- p1.h = _evt_system_call;
- [p0] = p1;
- csync;
- p0.l = 1f;
- p0.h = 1f;
- [sp + PT_RESERVED] = P0;
- call .Lresume_userspace;
-1:
- RESTORE_CONTEXT
- rti;
-ENDPROC(_schedule_and_signal)
-
-/* We handle this 100% in exception space - to reduce overhead
- * Only potiential problem is if the software buffer gets swapped out of the
- * CPLB table - then double fault. - so we don't let this happen in other places
- */
-#ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND
-ENTRY(_ex_trace_buff_full)
- [--sp] = P3;
- [--sp] = P2;
- [--sp] = LC0;
- [--sp] = LT0;
- [--sp] = LB0;
- P5.L = _trace_buff_offset;
- P5.H = _trace_buff_offset;
- P3 = [P5]; /* trace_buff_offset */
- P5.L = lo(TBUFSTAT);
- P5.H = hi(TBUFSTAT);
- R7 = [P5];
- R7 <<= 1; /* double, since we need to read twice */
- LC0 = R7;
- R7 <<= 2; /* need to shift over again,
- * to get the number of bytes */
- P5.L = lo(TBUF);
- P5.H = hi(TBUF);
- R6 = ((1 << CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN)*1024) - 1;
-
- P2 = R7;
- P3 = P3 + P2;
- R7 = P3;
- R7 = R7 & R6;
- P3 = R7;
- P2.L = _trace_buff_offset;
- P2.H = _trace_buff_offset;
- [P2] = P3;
-
- P2.L = _software_trace_buff;
- P2.H = _software_trace_buff;
-
- LSETUP (.Lstart, .Lend) LC0;
-.Lstart:
- R7 = [P5]; /* read TBUF */
- P4 = P3 + P2;
- [P4] = R7;
- P3 += -4;
- R7 = P3;
- R7 = R7 & R6;
-.Lend:
- P3 = R7;
-
- LB0 = [sp++];
- LT0 = [sp++];
- LC0 = [sp++];
- P2 = [sp++];
- P3 = [sp++];
- jump _bfin_return_from_exception;
-ENDPROC(_ex_trace_buff_full)
-
-#if CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN == 4
-.data
-#else
-.section .l1.data.B
-#endif /* CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN */
-ENTRY(_trace_buff_offset)
- .long 0;
-ALIGN
-ENTRY(_software_trace_buff)
- .rept ((1 << CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN)*256);
- .long 0
- .endr
-#endif /* CONFIG_DEBUG_BFIN_HWTRACE_EXPAND */
-
-#ifdef CONFIG_EARLY_PRINTK
-__INIT
-ENTRY(_early_trap)
- SAVE_ALL_SYS
- trace_buffer_stop(p0,r0);
-
- ANOMALY_283_315_WORKAROUND(p4, r5)
-
- /* Turn caches off, to ensure we don't get double exceptions */
-
- P4.L = LO(IMEM_CONTROL);
- P4.H = HI(IMEM_CONTROL);
-
- R5 = [P4]; /* Control Register*/
- BITCLR(R5,ENICPLB_P);
- CSYNC; /* Disabling of CPLBs should be proceeded by a CSYNC */
- [P4] = R5;
- SSYNC;
-
- P4.L = LO(DMEM_CONTROL);
- P4.H = HI(DMEM_CONTROL);
- R5 = [P4];
- BITCLR(R5,ENDCPLB_P);
- CSYNC; /* Disabling of CPLBs should be proceeded by a CSYNC */
- [P4] = R5;
- SSYNC;
-
- r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
- r1 = RETX;
-
- SP += -12;
- call _early_trap_c;
- SP += 12;
-ENDPROC(_early_trap)
-__FINIT
-#endif /* CONFIG_EARLY_PRINTK */
-
-/*
- * Put these in the kernel data section - that should always be covered by
- * a CPLB. This is needed to ensure we don't get double fault conditions
- */
-
-#ifdef CONFIG_SYSCALL_TAB_L1
-.section .l1.data
-#else
-.data
-#endif
-
-ENTRY(_ex_table)
- /* entry for each EXCAUSE[5:0]
- * This table must be in sync with the table in ./kernel/traps.c
- * EXCPT instruction can provide 4 bits of EXCAUSE, allowing 16 to be user defined
- */
- .long _ex_syscall /* 0x00 - User Defined - Linux Syscall */
- .long _ex_trap_c /* 0x01 - User Defined - Software breakpoint */
-#ifdef CONFIG_KGDB
- .long _ex_trap_c /* 0x02 - User Defined - KGDB initial connection
- and break signal trap */
-#else
- .long _ex_replaceable /* 0x02 - User Defined */
-#endif
- .long _ex_trap_c /* 0x03 - User Defined - userspace stack overflow */
- .long _ex_trap_c /* 0x04 - User Defined - dump trace buffer */
- .long _ex_replaceable /* 0x05 - User Defined */
- .long _ex_replaceable /* 0x06 - User Defined */
- .long _ex_replaceable /* 0x07 - User Defined */
- .long _ex_replaceable /* 0x08 - User Defined */
- .long _ex_replaceable /* 0x09 - User Defined */
- .long _ex_replaceable /* 0x0A - User Defined */
- .long _ex_replaceable /* 0x0B - User Defined */
- .long _ex_replaceable /* 0x0C - User Defined */
- .long _ex_replaceable /* 0x0D - User Defined */
- .long _ex_replaceable /* 0x0E - User Defined */
- .long _ex_replaceable /* 0x0F - User Defined */
- .long _ex_single_step /* 0x10 - HW Single step */
-#ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND
- .long _ex_trace_buff_full /* 0x11 - Trace Buffer Full */
-#else
- .long _ex_trap_c /* 0x11 - Trace Buffer Full */
-#endif
- .long _ex_trap_c /* 0x12 - Reserved */
- .long _ex_trap_c /* 0x13 - Reserved */
- .long _ex_trap_c /* 0x14 - Reserved */
- .long _ex_trap_c /* 0x15 - Reserved */
- .long _ex_trap_c /* 0x16 - Reserved */
- .long _ex_trap_c /* 0x17 - Reserved */
- .long _ex_trap_c /* 0x18 - Reserved */
- .long _ex_trap_c /* 0x19 - Reserved */
- .long _ex_trap_c /* 0x1A - Reserved */
- .long _ex_trap_c /* 0x1B - Reserved */
- .long _ex_trap_c /* 0x1C - Reserved */
- .long _ex_trap_c /* 0x1D - Reserved */
- .long _ex_trap_c /* 0x1E - Reserved */
- .long _ex_trap_c /* 0x1F - Reserved */
- .long _ex_trap_c /* 0x20 - Reserved */
- .long _ex_trap_c /* 0x21 - Undefined Instruction */
- .long _ex_trap_c /* 0x22 - Illegal Instruction Combination */
- .long _ex_dviol /* 0x23 - Data CPLB Protection Violation */
- .long _ex_trap_c /* 0x24 - Data access misaligned */
- .long _ex_trap_c /* 0x25 - Unrecoverable Event */
- .long _ex_dmiss /* 0x26 - Data CPLB Miss */
- .long _ex_dmult /* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero */
- .long _ex_trap_c /* 0x28 - Emulation Watchpoint */
- .long _ex_trap_c /* 0x29 - Instruction fetch access error (535 only) */
- .long _ex_trap_c /* 0x2A - Instruction fetch misaligned */
- .long _ex_trap_c /* 0x2B - Instruction CPLB protection Violation */
- .long _ex_icplb_miss /* 0x2C - Instruction CPLB miss */
- .long _ex_trap_c /* 0x2D - Instruction CPLB Multiple Hits */
- .long _ex_trap_c /* 0x2E - Illegal use of Supervisor Resource */
- .long _ex_trap_c /* 0x2E - Illegal use of Supervisor Resource */
- .long _ex_trap_c /* 0x2F - Reserved */
- .long _ex_trap_c /* 0x30 - Reserved */
- .long _ex_trap_c /* 0x31 - Reserved */
- .long _ex_trap_c /* 0x32 - Reserved */
- .long _ex_trap_c /* 0x33 - Reserved */
- .long _ex_trap_c /* 0x34 - Reserved */
- .long _ex_trap_c /* 0x35 - Reserved */
- .long _ex_trap_c /* 0x36 - Reserved */
- .long _ex_trap_c /* 0x37 - Reserved */
- .long _ex_trap_c /* 0x38 - Reserved */
- .long _ex_trap_c /* 0x39 - Reserved */
- .long _ex_trap_c /* 0x3A - Reserved */
- .long _ex_trap_c /* 0x3B - Reserved */
- .long _ex_trap_c /* 0x3C - Reserved */
- .long _ex_trap_c /* 0x3D - Reserved */
- .long _ex_trap_c /* 0x3E - Reserved */
- .long _ex_trap_c /* 0x3F - Reserved */
-END(_ex_table)
-
-ENTRY(_sys_call_table)
- .long _sys_restart_syscall /* 0 */
- .long _sys_exit
- .long _sys_ni_syscall /* fork */
- .long _sys_read
- .long _sys_write
- .long _sys_open /* 5 */
- .long _sys_close
- .long _sys_ni_syscall /* old 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_chown /* chown16 */
- .long _sys_ni_syscall /* old break syscall holder */
- .long _sys_ni_syscall /* old stat */
- .long _sys_lseek
- .long _sys_getpid /* 20 */
- .long _sys_mount
- .long _sys_ni_syscall /* old umount */
- .long _sys_setuid
- .long _sys_getuid
- .long _sys_stime /* 25 */
- .long _sys_ptrace
- .long _sys_alarm
- .long _sys_ni_syscall /* old fstat */
- .long _sys_pause
- .long _sys_ni_syscall /* old 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_setgid
- .long _sys_getgid
- .long _sys_ni_syscall /* old sys_signal */
- .long _sys_geteuid /* geteuid16 */
- .long _sys_getegid /* 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 */
- .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_ni_syscall /* old sys_sigaction */
- .long _sys_sgetmask
- .long _sys_ssetmask
- .long _sys_setreuid /* setreuid16 */ /* 70 */
- .long _sys_setregid /* setregid16 */
- .long _sys_ni_syscall /* old sys_sigsuspend */
- .long _sys_ni_syscall /* old sys_sigpending */
- .long _sys_sethostname
- .long _sys_setrlimit /* 75 */
- .long _sys_ni_syscall /* old getrlimit */
- .long _sys_getrusage
- .long _sys_gettimeofday
- .long _sys_settimeofday
- .long _sys_getgroups /* getgroups16 */ /* 80 */
- .long _sys_setgroups /* setgroups16 */
- .long _sys_ni_syscall /* old_select */
- .long _sys_symlink
- .long _sys_ni_syscall /* old lstat */
- .long _sys_readlink /* 85 */
- .long _sys_uselib
- .long _sys_ni_syscall /* sys_swapon */
- .long _sys_reboot
- .long _sys_ni_syscall /* old_readdir */
- .long _sys_ni_syscall /* sys_mmap */ /* 90 */
- .long _sys_munmap
- .long _sys_truncate
- .long _sys_ftruncate
- .long _sys_fchmod
- .long _sys_fchown /* 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
- .long _sys_ni_syscall /* old 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 /* old uname */
- .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_ni_syscall /* 115 */ /* sys_swapoff */
- .long _sys_sysinfo
- .long _sys_ni_syscall /* old sys_ipc */
- .long _sys_fsync
- .long _sys_ni_syscall /* old sys_sigreturn */
- .long _bfin_clone /* 120 */
- .long _sys_setdomainname
- .long _sys_newuname
- .long _sys_ni_syscall /* old sys_modify_ldt */
- .long _sys_adjtimex
- .long _sys_mprotect /* 125 */
- .long _sys_ni_syscall /* old sys_sigprocmask */
- .long _sys_ni_syscall /* old "creat_module" */
- .long _sys_init_module
- .long _sys_delete_module
- .long _sys_ni_syscall /* 130: old "get_kernel_syms" */
- .long _sys_quotactl
- .long _sys_getpgid
- .long _sys_fchdir
- .long _sys_bdflush
- .long _sys_ni_syscall /* 135 */ /* sys_sysfs */
- .long _sys_personality
- .long _sys_ni_syscall /* for afs_syscall */
- .long _sys_setfsuid /* setfsuid16 */
- .long _sys_setfsgid /* setfsgid16 */
- .long _sys_llseek /* 140 */
- .long _sys_getdents
- .long _sys_ni_syscall /* 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_setresuid /* setresuid16 */
- .long _sys_getresuid /* getresuid16 */ /* 165 */
- .long _sys_ni_syscall /* for vm86 */
- .long _sys_ni_syscall /* old "query_module" */
- .long _sys_ni_syscall /* sys_poll */
- .long _sys_ni_syscall /* old nfsservctl */
- .long _sys_setresgid /* setresgid16 */ /* 170 */
- .long _sys_getresgid /* 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_lchown /* lchown16 */
- .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_mmap_pgoff
- .long _sys_truncate64
- .long _sys_ftruncate64
- .long _sys_stat64 /* 195 */
- .long _sys_lstat64
- .long _sys_fstat64
- .long _sys_chown
- .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_lchown
- .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
- .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_ni_syscall /* 250 */ /* sys_alloc_hugepages */
- .long _sys_ni_syscall /* sys_freec_hugepages */
- .long _sys_exit_group
- .long _sys_lookup_dcookie
- .long _sys_bfin_spinlock
- .long _sys_epoll_create /* 255 */
- .long _sys_epoll_ctl
- .long _sys_epoll_wait
- .long _sys_ni_syscall /* remap_file_pages */
- .long _sys_set_tid_address
- .long _sys_timer_create /* 260 */
- .long _sys_timer_settime
- .long _sys_timer_gettime
- .long _sys_timer_getoverrun
- .long _sys_timer_delete
- .long _sys_clock_settime /* 265 */
- .long _sys_clock_gettime
- .long _sys_clock_getres
- .long _sys_clock_nanosleep
- .long _sys_statfs64
- .long _sys_fstatfs64 /* 270 */
- .long _sys_tgkill
- .long _sys_utimes
- .long _sys_fadvise64_64
- .long _sys_ni_syscall /* vserver */
- .long _sys_mbind /* 275 */
- .long _sys_ni_syscall /* get_mempolicy */
- .long _sys_ni_syscall /* set_mempolicy */
- .long _sys_mq_open
- .long _sys_mq_unlink
- .long _sys_mq_timedsend /* 280 */
- .long _sys_mq_timedreceive
- .long _sys_mq_notify
- .long _sys_mq_getsetattr
- .long _sys_ni_syscall /* kexec_load */
- .long _sys_waitid /* 285 */
- .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_ni_syscall /* 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_sram_alloc
- .long _sys_sram_free
- .long _sys_dma_memcpy
- .long _sys_accept
- .long _sys_bind /* 315 */
- .long _sys_connect
- .long _sys_getpeername
- .long _sys_getsockname
- .long _sys_getsockopt
- .long _sys_listen /* 320 */
- .long _sys_recv
- .long _sys_recvfrom
- .long _sys_recvmsg
- .long _sys_send
- .long _sys_sendmsg /* 325 */
- .long _sys_sendto
- .long _sys_setsockopt
- .long _sys_shutdown
- .long _sys_socket
- .long _sys_socketpair /* 330 */
- .long _sys_semctl
- .long _sys_semget
- .long _sys_semop
- .long _sys_msgctl
- .long _sys_msgget /* 335 */
- .long _sys_msgrcv
- .long _sys_msgsnd
- .long _sys_shmat
- .long _sys_shmctl
- .long _sys_shmdt /* 340 */
- .long _sys_shmget
- .long _sys_splice
- .long _sys_sync_file_range
- .long _sys_tee
- .long _sys_vmsplice /* 345 */
- .long _sys_epoll_pwait
- .long _sys_utimensat
- .long _sys_signalfd
- .long _sys_timerfd_create
- .long _sys_eventfd /* 350 */
- .long _sys_pread64
- .long _sys_pwrite64
- .long _sys_fadvise64
- .long _sys_set_robust_list
- .long _sys_get_robust_list /* 355 */
- .long _sys_fallocate
- .long _sys_semtimedop
- .long _sys_timerfd_settime
- .long _sys_timerfd_gettime
- .long _sys_signalfd4 /* 360 */
- .long _sys_eventfd2
- .long _sys_epoll_create1
- .long _sys_dup3
- .long _sys_pipe2
- .long _sys_inotify_init1 /* 365 */
- .long _sys_preadv
- .long _sys_pwritev
- .long _sys_rt_tgsigqueueinfo
- .long _sys_perf_event_open
- .long _sys_recvmmsg /* 370 */
- .long _sys_fanotify_init
- .long _sys_fanotify_mark
- .long _sys_prlimit64
- .long _sys_cacheflush
- .long _sys_name_to_handle_at /* 375 */
- .long _sys_open_by_handle_at
- .long _sys_clock_adjtime
- .long _sys_syncfs
- .long _sys_setns
- .long _sys_sendmmsg /* 380 */
- .long _sys_process_vm_readv
- .long _sys_process_vm_writev
- .long _sys_kcmp
- .long _sys_finit_module
- .long _sys_sched_setattr /* 385 */
- .long _sys_sched_getattr
- .long _sys_renameat2
- .long _sys_seccomp
- .long _sys_getrandom
- .long _sys_memfd_create /* 390 */
- .long _sys_bpf
- .long _sys_execveat
-
- .rept NR_syscalls-(.-_sys_call_table)/4
- .long _sys_ni_syscall
- .endr
-END(_sys_call_table)