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46 lines
921 B
46 lines
921 B
20 years ago
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/*
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* File: mca_drv_asm.S
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* Purpose: Assembly portion of Generic MCA handling
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*
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* Copyright (C) 2004 FUJITSU LIMITED
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* Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com)
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*/
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#include <linux/config.h>
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#include <linux/threads.h>
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#include <asm/asmmacro.h>
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#include <asm/processor.h>
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GLOBAL_ENTRY(mca_handler_bhhook)
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invala // clear RSE ?
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;; //
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cover //
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;; //
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clrrrb //
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;;
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alloc r16=ar.pfs,0,2,1,0 // make a new frame
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;;
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mov r13=IA64_KR(CURRENT) // current task pointer
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;;
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adds r12=IA64_TASK_THREAD_KSP_OFFSET,r13
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;;
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ld8 r12=[r12] // stack pointer
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;;
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mov loc0=r16
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movl loc1=mca_handler_bh // recovery C function
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;;
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mov out0=r8 // poisoned address
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mov b6=loc1
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;;
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mov loc1=rp
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;;
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br.call.sptk.many rp=b6 // not return ...
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;;
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mov ar.pfs=loc0
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mov rp=loc1
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;;
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mov r8=r0
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br.ret.sptk.many rp
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;;
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END(mca_handler_bhhook)
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