diff options
Diffstat (limited to 'arch/ia64/kernel/mca_drv_asm.S')
| -rw-r--r-- | arch/ia64/kernel/mca_drv_asm.S | 58 |
1 files changed, 28 insertions, 30 deletions
diff --git a/arch/ia64/kernel/mca_drv_asm.S b/arch/ia64/kernel/mca_drv_asm.S index 2d7e0217638..767ac2c20d1 100644 --- a/arch/ia64/kernel/mca_drv_asm.S +++ b/arch/ia64/kernel/mca_drv_asm.S @@ -3,9 +3,8 @@ * Purpose: Assembly portion of Generic MCA handling * * Copyright (C) 2004 FUJITSU LIMITED - * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com) + * Copyright (C) 2004 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> */ -#include <linux/config.h> #include <linux/threads.h> #include <asm/asmmacro.h> @@ -13,45 +12,44 @@ #include <asm/ptrace.h> GLOBAL_ENTRY(mca_handler_bhhook) - invala // clear RSE ? - ;; // - cover // - ;; // - clrrrb // - ;; - alloc r16=ar.pfs,0,2,1,0 // make a new frame - ;; - mov ar.rsc=0 - ;; - mov r13=IA64_KR(CURRENT) // current task pointer + invala // clear RSE ? + cover ;; - mov r2=r13 + clrrrb + ;; + alloc r16=ar.pfs,0,2,3,0 // make a new frame + mov ar.rsc=0 + mov r13=IA64_KR(CURRENT) // current task pointer ;; - addl r22=IA64_RBS_OFFSET,r2 + mov r2=r13 ;; - mov ar.bspstore=r22 + addl r22=IA64_RBS_OFFSET,r2 ;; - addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2 + mov ar.bspstore=r22 + addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2 ;; - adds r2=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13 + adds r2=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13 ;; - st1 [r2]=r0 // clear current->thread.on_ustack flag - mov loc0=r16 - movl loc1=mca_handler_bh // recovery C function + st1 [r2]=r0 // clear current->thread.on_ustack flag + mov loc0=r16 + movl loc1=mca_handler_bh // recovery C function ;; - mov out0=r8 // poisoned address - mov b6=loc1 + mov out0=r8 // poisoned address + mov out1=r9 // iip + mov out2=r10 // psr + mov b6=loc1 ;; - mov loc1=rp + mov loc1=rp + ssm psr.ic ;; - ssm psr.i + srlz.i ;; - br.call.sptk.many rp=b6 // does not return ... + ssm psr.i + br.call.sptk.many rp=b6 // does not return ... ;; - mov ar.pfs=loc0 - mov rp=loc1 + mov ar.pfs=loc0 + mov rp=loc1 ;; - mov r8=r0 + mov r8=r0 br.ret.sptk.many rp - ;; END(mca_handler_bhhook) |