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📄 cpu.c(23.74 KB)
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📄 genassym.c(10.78 KB)
📄 in_cksum.c(6.64 KB)
📄 interrupt.c(3.9 KB)
📄 intr_machdep.c(15.53 KB)
📄 iommu_if.m(1.74 KB)
📄 machdep.c(21.72 KB)
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📄 minidump_machdep.c(9.09 KB)
📄 mp_machdep.c(8.81 KB)
📄 nexus.c(7.06 KB)
📄 openpic.c(11.35 KB)
📄 pic_if.m(2.45 KB)
📄 platform.c(9.15 KB)
📄 platform_if.m(6.15 KB)
📄 pmap_dispatch.c(8.92 KB)
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📄 sc_machdep.c(2.21 KB)
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📄 sigcode32.S(2.4 KB)
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📄 stack_machdep.c(3.1 KB)
📄 support.S(11.06 KB)
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📄 syncicache.c(2.51 KB)
📄 sys_machdep.c(1.73 KB)
📄 trap.c(25.06 KB)
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📄 uma_machdep.c(2.89 KB)
📄 vm_machdep.c(7.5 KB)

Editing: interrupt.c

/*-
 * Copyright 2002 by Peter Grehan. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

/*
 * Interrupts are dispatched to here from locore asm
 */

#include "opt_hwpmc_hooks.h"
#include "opt_platform.h"

#include <sys/cdefs.h>                  /* RCS ID & Copyright macro defns */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/interrupt.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <sys/ktr.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#ifdef HWPMC_HOOKS
#include <sys/pmckern.h>
#endif
#include <sys/proc.h>
#include <sys/smp.h>
#include <sys/unistd.h>
#include <sys/vmmeter.h>

#include <machine/cpu.h>
#include <machine/clock.h>
#include <machine/db_machdep.h>
#include <machine/fpu.h>
#include <machine/frame.h>
#include <machine/intr_machdep.h>
#include <machine/md_var.h>
#include <machine/pcb.h>
#include <machine/psl.h>
#include <machine/trap.h>
#include <machine/spr.h>
#include <machine/sr.h>

#include "pic_if.h"

#ifdef POWERNV
int (*hmi_handler)(struct trapframe *);
#endif

/*
 * A very short dispatch, to try and maximise assembler code use
 * between all exception types. Maybe 'true' interrupts should go
 * here, and the trap code can come in separately
 */
void
powerpc_interrupt(struct trapframe *framep)
{
	struct thread *td;
	struct trapframe *oldframe;
	register_t ee;

td = curthread;

CTR2(KTR_INTR, "%s: EXC=%x", __func__, framep->exc);

switch (framep->exc) {
	case EXC_EXI:
	case EXC_HVI:
		critical_enter();
		PIC_DISPATCH(root_pic, framep);
		critical_exit();
#ifdef BOOKE
		framep->srr1 &= ~PSL_WE;
#endif
		break;

case EXC_DECR:
		critical_enter();
		atomic_add_int(&td->td_intr_nesting_level, 1);
		oldframe = td->td_intr_frame;
		td->td_intr_frame = framep;
		decr_intr(framep);
		td->td_intr_frame = oldframe;
		atomic_subtract_int(&td->td_intr_nesting_level, 1);
		critical_exit();
#ifdef BOOKE
		framep->srr1 &= ~PSL_WE;
#endif
		break;
#ifdef HWPMC_HOOKS
	case EXC_PERF:
		critical_enter();
		KASSERT(pmc_intr != NULL, ("Performance exception, but no handler!"));
		(*pmc_intr)(framep);
		critical_exit();
		if (pmc_hook && (PCPU_GET(curthread)->td_pflags & TDP_CALLCHAIN))
			pmc_hook(PCPU_GET(curthread), PMC_FN_USER_CALLCHAIN, framep);
		break;
#endif

#ifdef POWERNV
	case EXC_HMI:
		if (hmi_handler != 0 && hmi_handler(framep) == 0)
			break;
		/* If no handler, or failure to handle, just drop to trap. */
#endif

default:
		/* Re-enable interrupts if applicable. */
		ee = framep->srr1 & PSL_EE;
		if (ee != 0)
			mtmsr(mfmsr() | ee);
		trap(framep);
	}	        
}

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Editing: interrupt.c

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