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65 lines
1.2 KiB
65 lines
1.2 KiB
// TITLE("Interprocessor Interrupts")
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//++
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//
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// Copyright (c) 1993 Microsoft Corporation
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//
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// Module Name:
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//
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// xxipiint.s
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//
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// Abstract:
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//
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// This module implements the code necessary to field and process the
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// interprocessor interrupts on a MIPS R4000 Duo system.
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//
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// Author:
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//
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// David N. Cutler (davec) 29-May-1993
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//
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// Environment:
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//
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// Kernel mode only.
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//
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// Revision History:
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//
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//--
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#include "halmips.h"
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#if defined(_DUO_)
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#include "duodef.h"
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#endif
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SBTTL("Interprocessor Interrupt")
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//++
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//
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// Routine Description:
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//
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// This routine is entered as the result of an interprocessor interrupt.
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// Its function is to acknowledge the interrupt and transfer control to
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// the standard system routine to process interprocessor requrests.
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//
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// Arguments:
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//
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// s8 - Supplies a pointer to a trap frame.
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//
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// Return Value:
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//
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// None.
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//
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//--
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#if defined(_DUO_)
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LEAF_ENTRY(HalpIpiInterrupt)
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lw t0,DMA_VIRTUAL_BASE + 0x60 // acknowledge IP interrupt
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lw t1,__imp_KeIpiInterrupt // process interprocessor requests
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j t1 //
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.end HalpIpIInterrupt
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#endif
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