diff options
Diffstat (limited to 'arch/ia64/kernel/entry.S')
| -rw-r--r-- | arch/ia64/kernel/entry.S | 41 |
1 files changed, 14 insertions, 27 deletions
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index fcf8b8cbca0b..ae0de7bf5525 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -51,7 +51,6 @@ #include "minstate.h" -#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE /* * execve() is special because in case of success, we need to * setup a null register window frame. @@ -161,7 +160,6 @@ GLOBAL_ENTRY(sys_clone) mov rp=loc0 br.ret.sptk.many rp END(sys_clone) -#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ /* * prev_task <- ia64_switch_to(struct task_struct *next) @@ -169,7 +167,7 @@ END(sys_clone) * called. The code starting at .map relies on this. The rest of the code * doesn't care about the interrupt masking status. */ -GLOBAL_ENTRY(__paravirt_switch_to) +GLOBAL_ENTRY(ia64_switch_to) .prologue alloc r16=ar.pfs,1,0,0,0 DO_SAVE_SWITCH_STACK @@ -221,9 +219,8 @@ GLOBAL_ENTRY(__paravirt_switch_to) itr.d dtr[r25]=r23 // wire in new mapping... SSM_PSR_IC_AND_SRLZ_D(r8, r9) // reenable the psr.ic bit br.cond.sptk .done -END(__paravirt_switch_to) +END(ia64_switch_to) -#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE /* * Note that interrupts are enabled during save_switch_stack and load_switch_stack. This * means that we may get an interrupt with "sp" pointing to the new kernel stack while @@ -639,16 +636,8 @@ GLOBAL_ENTRY(ia64_ret_from_syscall) adds r2=PT(R8)+16,sp // r2 = &pt_regs.r8 mov r10=r0 // clear error indication in r10 (p7) br.cond.spnt handle_syscall_error // handle potential syscall failure -#ifdef CONFIG_PARAVIRT - ;; - br.cond.sptk.few ia64_leave_syscall - ;; -#endif /* CONFIG_PARAVIRT */ END(ia64_ret_from_syscall) -#ifndef CONFIG_PARAVIRT // fall through -#endif -#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ /* * ia64_leave_syscall(): Same as ia64_leave_kernel, except that it doesn't @@ -694,7 +683,7 @@ END(ia64_ret_from_syscall) * ar.csd: cleared * ar.ssd: cleared */ -GLOBAL_ENTRY(__paravirt_leave_syscall) +GLOBAL_ENTRY(ia64_leave_syscall) PT_REGS_UNWIND_INFO(0) /* * work.need_resched etc. mustn't get changed by this CPU before it returns to @@ -722,8 +711,8 @@ GLOBAL_ENTRY(__paravirt_leave_syscall) cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall (pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk #endif -.global __paravirt_work_processed_syscall; -__paravirt_work_processed_syscall: +.global ia64_work_processed_syscall; +ia64_work_processed_syscall: #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE adds r2=PT(LOADRS)+16,r12 MOV_FROM_ITC(pUStk, p9, r22, r19) // fetch time at leave @@ -836,9 +825,9 @@ __paravirt_work_processed_syscall: mov.m ar.ssd=r0 // M2 clear ar.ssd mov f11=f0 // F clear f11 br.cond.sptk.many rbs_switch // B -END(__paravirt_leave_syscall) +END(ia64_leave_syscall) -GLOBAL_ENTRY(__paravirt_leave_kernel) +GLOBAL_ENTRY(ia64_leave_kernel) PT_REGS_UNWIND_INFO(0) /* * work.need_resched etc. mustn't get changed by this CPU before it returns to @@ -1171,26 +1160,25 @@ skip_rbs_switch: (p6) br.cond.sptk.few .notify br.call.spnt.many rp=preempt_schedule_irq .ret9: cmp.eq p6,p0=r0,r0 // p6 <- 1 (re-check) -(pLvSys)br.cond.sptk.few __paravirt_pending_syscall_end +(pLvSys)br.cond.sptk.few ia64_work_pending_syscall_end br.cond.sptk.many .work_processed_kernel .notify: (pUStk) br.call.spnt.many rp=notify_resume_user .ret10: cmp.ne p6,p0=r0,r0 // p6 <- 0 (don't re-check) -(pLvSys)br.cond.sptk.few __paravirt_pending_syscall_end +(pLvSys)br.cond.sptk.few ia64_work_pending_syscall_end br.cond.sptk.many .work_processed_kernel -.global __paravirt_pending_syscall_end; -__paravirt_pending_syscall_end: +.global ia64_work_pending_syscall_end; +ia64_work_pending_syscall_end: adds r2=PT(R8)+16,r12 adds r3=PT(R10)+16,r12 ;; ld8 r8=[r2] ld8 r10=[r3] - br.cond.sptk.many __paravirt_work_processed_syscall_target -END(__paravirt_leave_kernel) + br.cond.sptk.many ia64_work_processed_syscall +END(ia64_leave_kernel) -#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE ENTRY(handle_syscall_error) /* * Some system calls (e.g., ptrace, mmap) can return arbitrary values which could @@ -1294,7 +1282,7 @@ ENTRY(sys_rt_sigreturn) adds sp=16,sp ;; ld8 r9=[sp] // load new ar.unat - mov.sptk b7=r8,ia64_native_leave_kernel + mov.sptk b7=r8,ia64_leave_kernel ;; mov ar.unat=r9 br.many b7 @@ -1782,4 +1770,3 @@ sys_call_table: data8 sys_execveat .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls -#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ |