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  • This comparison shows the changes necessary to convert path 
    /or1k/tags/nog_patch_62/or1ksim/pic
    from Rev 1449 to Rev 1765
    ↔ Reverse comparison
  •

Rev 1449 → Rev 1765

/pic.c
0,0 → 1,88
/* pic.c -- Simulation of OpenRISC 1000 programmable interrupt controller
Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
 
This file is part of OpenRISC 1000 Architectural Simulator.
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
 
/* This is functional simulation of OpenRISC 1000 architectural
programmable interrupt controller.
*/
 
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
 
#include "config.h"
 
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
 
#include "port.h"
#include "arch.h"
#include "abstract.h"
#include "pic.h"
#include "opcode/or32.h"
#include "spr_defs.h"
#include "execute.h"
#include "except.h"
#include "sprs.h"
#include "sched.h"
#include "debug.h"
 
DEFAULT_DEBUG_CHANNEL(pic);
 
/* Reset. It initializes PIC registers. */
void pic_reset()
{
PRINTF("Resetting PIC.\n");
mtspr(SPR_PICMR, 0);
mtspr(SPR_PICPR, 0);
mtspr(SPR_PICSR, 0);
}
 
/* Handles the reporting of an interrupt if it had to be delayed */
void pic_clock(void *dat)
{
/* Don't do anything if interrupts not currently enabled */
if(testsprbits (SPR_SR, SPR_SR_IEE))
except_handle(EXCEPT_INT, mfspr(SPR_EEAR_BASE));
else
SCHED_ADD(pic_clock, NULL, 1);
}
 
/* WARNING: Don't eaven try and call this function *during* a simulated
* instruction!! (as in during a read_mem or write_mem callback). except_handle
* assumes that this is the case, it breaks otherwise. */
/* Asserts interrupt to the PIC. */
void report_interrupt(int line)
{
setsprbits(SPR_PMR, SPR_PMR_DME, 0); /* Disable doze mode */
setsprbits(SPR_PMR, SPR_PMR_SME, 0); /* Disable sleep mode */
 
TRACE("Asserting interrupt %d (%s).\n", line, getsprbit(SPR_PICMR, line) ? "Unmasked" : "Masked");
 
if (getsprbit(SPR_PICMR, line) || line < 2) {
setsprbit(SPR_PICSR, line, 1);
/* Don't do anything if interrupts not currently enabled */
if (testsprbits (SPR_SR, SPR_SR_IEE)) {
except_handle(EXCEPT_INT, mfspr(SPR_EEAR_BASE));
TRACE("Delivering interrupt on cycle %lli\n", runtime.sim.cycles);
} else
/* Interrupts not currently enabled, retry next clock cycle */
SCHED_ADD(pic_clock, NULL, 1);
}
}
/pic.h
0,0 → 1,22
/* pic.h -- Definition of types and structures for openrisc 1000 PIC
Copyright (C) 2000 Damjan Lampret, lampret@opencores.org
 
This file is part of OpenRISC 1000 Architectural Simulator.
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
 
/* Prototypes */
void pic_reset();
void report_interrupt(int line);
/Makefile.in
0,0 → 1,331
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# @configure_input@
 
# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
# Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
 
@SET_MAKE@
 
# Makefile -- Makefile for peripherals simulation
# Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
#
# This file is part of OpenRISC 1000 Architectural Simulator.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
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exec_prefix = @exec_prefix@
 
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DIST_SOURCES = $(libpic_a_SOURCES)
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/Makefile.am
0,0 → 1,22
# Makefile -- Makefile for peripherals simulation
# Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
#
# This file is part of OpenRISC 1000 Architectural Simulator.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
 
noinst_LIBRARIES = libpic.a
libpic_a_SOURCES = pic.c
/.
. Property changes : Added: svn:ignore ## -0,0 +1,2 ## +Makefile +.deps

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