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New revision from Andrew

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This commit is contained in:
Michael Meissner 1996-12-10 16:12:48 +00:00
parent a7dd20e839
commit 3fbe064171
8 changed files with 3639 additions and 381 deletions
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8
sim/ppc/.Sanitize
View File

@ -96,13 +96,17 @@ hw_cpu.c
hw_cpu.h
hw_disk.c
hw_eeprom.c
hw_glue.c
hw_htab.c
hw_ide.c
hw_init.c
hw_iobus.c
hw_memory.c
hw_nvram.c
hw_opic.c
hw_pal.c
hw_pic.c
hw_phb.c
hw_phb.h
hw_register.c
hw_trace.c
hw_vm.c
@ -158,6 +162,8 @@ sim_calls.c
std-config.h
table.c
table.h
tree.c
tree.h
vm.c
vm.h
vm_n.h

600
sim/ppc/configure.in
View File

@ -13,6 +13,55 @@ else
CC_FOR_BUILD=gcc
fi
AC_ARG_ENABLE(sim-alignment,
[ --enable-sim-alignment=align Specify strict or nonstrict alignment.],
[case "${enableval}" in
yes | strict | STRICT) sim_alignment="-DWITH_ALIGNMENT=STRICT_ALIGNMENT";;
no | nonstrict | NONSTRICT) sim_alignment="-DWITH_ALIGNMENT=NONSTRICT_ALIGNMENT";;
0 | default | DEFAULT) sim_alignment="-DWITH_ALIGNMENT=0";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-alignment"); sim_alignment="";;
esac
if test x"$silent" != x"yes" && test x"$sim_alignment" != x""; then
echo "Setting alignment flags = $sim_alignment" 6>&1
fi],[sim_alignment=""])dnl
AC_ARG_ENABLE(sim-assert,
[ --enable-sim-assert Specify whether to perform random assertions.],
[case "${enableval}" in
yes) sim_assert="-DWITH_ASSERT=1";;
no) sim_assert="-DWITH_ASSERT=0";;
*) AC_MSG_ERROR("--enable-sim-assert does not take a value"); sim_assert="";;
esac
if test x"$silent" != x"yes" && test x"$sim_assert" != x""; then
echo "Setting assert flags = $sim_assert" 6>&1
fi],[sim_assert=""])dnl
AC_ARG_ENABLE(sim-bitsize,
[ --enable-sim-bitsize=n Specify target bitsize (32 or 64).],
[case "${enableval}" in
32|64) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=$enableval";;
*) AC_MSG_ERROR("--enable-sim-bitsize was given $enableval. Expected 32 or 64"); sim_bitsize="";;
esac
if test x"$silent" != x"yes" && test x"$sim_bitsize" != x""; then
echo "Setting bitsize flags = $sim_bitsize" 6>&1
fi],[sim_bitsize=""])dnl
AC_ARG_ENABLE(sim-bswap,
[ --enable-sim-bswap Use the BSWAP instruction on Intel 486s and Pentiums.],
[case "${enableval}" in
yes) sim_bswap="-DWITH_BSWAP=1";;
no) sim_bswap="-DWITH_BSWAP=0";;
*) AC_MSG_ERROR("--enable-sim-bswap does not take a value"); sim_bswap="";;
esac
if test x"$silent" != x"yes" && test x"$sim_bswap" != x""; then
echo "Setting bswap flags = $sim_bswap" 6>&1
fi],[sim_bswap=""])dnl
AC_ARG_ENABLE(sim-cflags,
[ --enable-sim-cflags=opts Extra CFLAGS for use in building simulator],
[case "${enableval}" in
@ -24,27 +73,6 @@ if test x"$silent" != x"yes" && test x"$sim_cflags" != x""; then
echo "Setting sim cflags = $sim_cflags" 6>&1
fi],[sim_cflags=""])dnl
AC_ARG_ENABLE(sim-warnings,
[ --enable-sim-warnings=opts Extra CFLAGS for turning on compiler warnings except for idecode.o, semantics.o and psim.o],
[case "${enableval}" in
yes) sim_warnings="-Werror -Wall -Wpointer-arith -Wmissing-prototypes";;
no) sim_warnings="-w";;
*) sim_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
esac
if test x"$silent" != x"yes" && test x"$sim_warnings" != x""; then
echo "Setting warning flags = $sim_warnings" 6>&1
fi],[sim_warnings=""])dnl
AC_ARG_ENABLE(sim-line-nr,
[ --enable-sim-line-nr=opts Generate extra CPP code that references source rather than generated code],
[case "${enableval}" in
yes) sim_line_nr="";;
no) sim_line_nr="-L";;
*) AC_MSG_ERROR("--enable-sim-line-nr does not take a value"); sim_line_nr="";;
esac
if test x"$silent" != x"yes" && test x"$sim_line_nr" != x""; then
echo "Setting warning flags = $sim_line_nr" 6>&1
fi],[sim_line_nr=""])dnl
AC_ARG_ENABLE(sim-config,
[ --enable-sim-config=file Override default config file],
@ -66,39 +94,17 @@ if test x"$silent" != x"yes"; then
echo "Setting config flags = $sim_config" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-opcode,
[ --enable-sim-opcode=which Override default opcode lookup.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-opcode=file");;
*) if test -f "${srcdir}/${enableval}"; then
sim_opcode="${enableval}"
elif test -f "${srcdir}/ppc-opcode-${enableval}"; then
sim_opcode="ppc-opcode-${enableval}"
else
AC_MSG_ERROR("File $enableval is not an opcode rules file");
sim_opcode="ppc-opcode-complex"
fi;;
esac
if test x"$silent" != x"yes" && test x"$sim_opcode" != x""; then
echo "Setting opcode flags = $sim_opcode" 6>&1
fi],[sim_opcode="ppc-opcode-complex"
if test x"$silent" != x"yes"; then
echo "Setting opcode flags = $sim_opcode"
fi])dnl
AC_ARG_ENABLE(sim-switch,
[ --enable-sim-switch Use a switch instead of a table for instruction call.],
AC_ARG_ENABLE(sim-default-model,
[ --enable-sim-default-model=which Specify default PowerPC to model.],
[case "${enableval}" in
yes) sim_switch="-s";;
no) sim_switch="";;
*) AC_MSG_ERROR("--enable-sim-switch does not take a value"); sim_switch="";;
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-default-model=model");;
*) sim_default_model="-DWITH_DEFAULT_MODEL=${enableval}";;
esac
if test x"$silent" != x"yes" && test x"$sim_switch" != x""; then
echo "Setting switch flags = $sim_switch" 6>&1
fi],[sim_switch="";
if test x"$silent" != x"yes"; then
echo "Setting switch flags = $sim_switch" 6>&1
fi])dnl
if test x"$silent" != x"yes" && test x"$sim_default_model" != x""; then
echo "Setting default-model flags = $sim_default_model" 6>&1
fi],[sim_model=""])dnl
AC_ARG_ENABLE(sim-duplicate,
[ --enable-sim-duplicate Expand (duplicate) semantic functions.],
@ -114,19 +120,38 @@ if test x"$silent" != x"yes"; then
echo "Setting duplicate flags = $sim_dup" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-jump,
[ --enable-sim-jump Jump between semantic code (instead of call/return).],
AC_ARG_ENABLE(sim-endian,
[ --enable-sim-endian=endian Specify target byte endian orientation.],
[case "${enableval}" in
yes) sim_jump="-J";;
no) sim_jump="";;
*) AC_MSG_ERROR("--enable-sim-jump does not take a value"); sim_jump="";;
yes) case "$target" in
*powerpc-*) sim_endian="-DWITH_TARGET_BYTE_ORDER=BIG_ENDIAN";;
*powerpcle-*) sim_endian="-DWITH_TARGET_BYTE_ORDER=LITTLE_ENDIAN";;
*) echo "Unknown target $target" 1>&6; sim_endian="-DWITH_TARGET_BYTE_ORDER=0";;
esac;;
no) sim_endian="-DWITH_TARGET_BYTE_ORDER=0";;
b*|B*) sim_endian="-DWITH_TARGET_BYTE_ORDER=BIG_ENDIAN";;
l*|L*) sim_endian="-DWITH_TARGET_BYTE_ORDER=LITTLE_ENDIAN";;
*) AC_MSG_ERROR("Unknown value $enableval for --enable-sim-endian"); sim_endian="";;
esac
if test x"$silent" != x"yes" && test x"$sim_jump" != x""; then
echo "Setting jump flag = $sim_jump" 6>&1
fi],[sim_jump="-E"
if test x"$silent" != x"yes"; then
echo "Setting jump flag = $sim_jump" 6>&1
fi])dnl
if test x"$silent" != x"yes" && test x"$sim_endian" != x""; then
echo "Setting endian flags = $sim_endian" 6>&1
fi],[sim_endian=""])dnl
AC_ARG_ENABLE(sim-env,
[ --enable-sim-env=env Specify target environment (operating, virtual, user).],
[case "${enableval}" in
operating | os | oea) sim_env="-DWITH_ENVIRONMENT=OPERATING_ENVIRONMENT";;
virtual | vea) sim_env="-DWITH_ENVIRONMENT=VIRTUAL_ENVIRONMENT";;
user | uea) sim_env="-DWITH_ENVIRONMENT=USER_ENVIRONMENT";;
no) sim_env="-DWITH_ENVIRONMENT=0";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-env"); sim_env="";;
esac
if test x"$silent" != x"yes" && test x"$sim_env" != x""; then
echo "Setting env flags = $sim_env" 6>&1
fi],[sim_env=""])dnl
AC_ARG_ENABLE(sim-filter,
[ --enable-sim-filter=rule Specify filter rules.],
@ -142,6 +167,75 @@ if test x"$silent" != x"yes"; then
echo "Setting filter flags = $sim_filter" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-float,
[ --enable-sim-float Specify whether to use host floating point or simulate.],
[case "${enableval}" in
yes | hard) sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT";;
no | soft) sim_float="-DWITH_FLOATING_POINT=SOFT_FLOATING_POINT";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-float"); sim_float="";;
esac
if test x"$silent" != x"yes" && test x"$sim_float" != x""; then
echo "Setting float flags = $sim_float" 6>&1
fi],[sim_float=""])dnl
AC_ARG_ENABLE(sim-hardware,
[ --enable-sim-hardware=list Specify the hardware to be included in the build.],
[hardware="cpu,memory,nvram,iobus,htab,disk,trace,register,vm,init,core,pal,com,eeprom,opic,glue,phb,ide"
case "${enableval}" in
yes) ;;
no) AC_MSG_ERROR("List of hardware must be specified for --enable-sim-hardware"); hardware="";;
,*) hardware="${hardware}${enableval}";;
*,) hardware="${enableval}${hardware}";;
*) hardware="${enableval}"'';;
esac
sim_hw_src=`echo $hardware | sed -e 's/,/.c hw_/g' -e 's/^/hw_/' -e s'/$/.c/'`
sim_hw_obj=`echo $sim_hw_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes" && test x"$hardware" != x""; then
echo "Setting hardware to $sim_hw_src, $sim_hw_obj"
fi],[hardware="cpu,memory,nvram,iobus,htab,disk,trace,register,vm,init,core,pal,com,eeprom,opic,glue,phb,ide"
sim_hw_src=`echo $hardware | sed -e 's/,/.c hw_/g' -e 's/^/hw_/' -e s'/$/.c/'`
sim_hw_obj=`echo $sim_hw_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes"; then
echo "Setting hardware to $sim_hw_src, $sim_hw_obj"
fi])dnl
AC_ARG_ENABLE(sim-hostbitsize,
[ --enable-sim-hostbitsize=32|64 Specify host bitsize (32 or 64).],
[case "${enableval}" in
32|64) sim_hostbitsize="-DWITH_HOST_WORD_BITSIZE=$enableval";;
*) AC_MSG_ERROR("--enable-sim-hostbitsize was given $enableval. Expected 32 or 64"); sim_hostbitsize="";;
esac
if test x"$silent" != x"yes" && test x"$sim_hostbitsize" != x""; then
echo "Setting hostbitsize flags = $sim_hostbitsize" 6>&1
fi],[sim_hostbitsize=""])dnl
AC_ARG_ENABLE(sim-hostendian,
[ --enable-sim-hostendain=end Specify host byte endian orientation.],
[case "${enableval}" in
no) sim_hostendian="-DWITH_HOST_BYTE_ORDER=0";;
b*|B*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN";;
l*|L*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN";;
*) AC_MSG_ERROR("Unknown value $enableval for --enable-sim-hostendian"); sim_hostendian="";;
esac
if test x"$silent" != x"yes" && test x"$sim_hostendian" != x""; then
echo "Setting hostendian flags = $sim_hostendian" 6>&1
fi],[
if test "x$cross_compiling" = "xno"; then
AC_C_BIGENDIAN
if test $ac_cv_c_bigendian = yes; then
sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN"
else
sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN"
fi
else
sim_hostendian="-DWITH_HOST_BYTE_ORDER=0"
fi])dnl
AC_ARG_ENABLE(sim-icache,
[ --enable-sim-icache=size Specify instruction cache size.],
[icache=""
@ -168,46 +262,6 @@ if test x"$silent" != x"yes"; then
echo "Setting instruction cache size to 1024 ($sim_icache)"
fi])dnl
AC_ARG_ENABLE(sim-hardware,
[ --enable-sim-hardware=list Specify the hardware to be included in the build.],
[hardware="cpu,memory,nvram,iobus,htab,disk,trace,register,vm,init,core,pal,com"
case "${enableval}" in
yes) ;;
no) AC_MSG_ERROR("List of hardware must be specified for --enable-sim-hardware"); hardware="";;
,*) hardware="${hardware}${enableval}";;
*) hardware="${enableval}";;
esac
sim_hw_src=`echo $hardware | sed -e 's/,/.c hw_/g' -e 's/^/hw_/' -e s'/$/.c/'`
sim_hw_obj=`echo $sim_hw_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes" && test x"$hardware" != x""; then
echo "Setting hardware to $sim_hw_src, $sim_hw_obj"
fi],[hardware="cpu,memory,nvram,iobus,htab,disk,trace,register,vm,init,core,pal,com"
sim_hw_src=`echo $hardware | sed -e 's/,/.c hw_/g' -e 's/^/hw_/' -e s'/$/.c/'`
sim_hw_obj=`echo $sim_hw_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes"; then
echo "Setting hardware to $sim_hw_src, $sim_hw_obj"
fi])dnl
AC_ARG_ENABLE(sim-packages,
[ --enable-sim-packages=list Specify the packages to be included in the build.],
[packages=disklabel
case "${enableval}" in
yes) ;;
no) AC_MSG_ERROR("List of packages must be specified for --enable-sim-packages"); packages="";;
,*) packages="${packages}${enableval}";;
*) packages="${enableval}"''
esac
sim_pk_src=`echo $packages | sed -e 's/,/.c pk_/g' -e 's/^/pk_/' -e 's/$/.c/'`
sim_pk_obj=`echo $sim_pk_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes" && test x"$packages" != x""; then
echo "Setting packages to $sim_pk_src, $sim_pk_obj"
fi],[packages=disklabel
sim_pk_src=`echo $packages | sed -e 's/,/.c pk_/g' -e 's/^/pk_/' -e 's/$/.c/'`
sim_pk_obj=`echo $sim_pk_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes"; then
echo "Setting packages to $sim_pk_src, $sim_pk_obj"
fi])dnl
AC_ARG_ENABLE(sim-inline,
[ --enable-sim-inline=inlines Specify which functions should be inlined.],
@ -243,33 +297,113 @@ else
sim_inline=""
fi])dnl
AC_ARG_ENABLE(sim-bswap,
[ --enable-sim-bswap Use the BSWAP instruction on Intel 486s and Pentiums.],
[case "${enableval}" in
yes) sim_bswap="-DWITH_BSWAP=1";;
no) sim_bswap="-DWITH_BSWAP=0";;
*) AC_MSG_ERROR("--enable-sim-bswap does not take a value"); sim_bswap="";;
esac
if test x"$silent" != x"yes" && test x"$sim_bswap" != x""; then
echo "Setting bswap flags = $sim_bswap" 6>&1
fi],[sim_bswap=""])dnl
AC_ARG_ENABLE(sim-endian,
[ --enable-sim-endian=endian Specify target byte endian orientation.],
AC_ARG_ENABLE(sim-jump,
[ --enable-sim-jump Jump between semantic code (instead of call/return).],
[case "${enableval}" in
yes) case "$target" in
*powerpc-*) sim_endian="-DWITH_TARGET_BYTE_ORDER=BIG_ENDIAN";;
*powerpcle-*) sim_endian="-DWITH_TARGET_BYTE_ORDER=LITTLE_ENDIAN";;
*) echo "Unknown target $target" 1>&6; sim_endian="-DWITH_TARGET_BYTE_ORDER=0";;
esac;;
no) sim_endian="-DWITH_TARGET_BYTE_ORDER=0";;
b*|B*) sim_endian="-DWITH_TARGET_BYTE_ORDER=BIG_ENDIAN";;
l*|L*) sim_endian="-DWITH_TARGET_BYTE_ORDER=LITTLE_ENDIAN";;
*) AC_MSG_ERROR("Unknown value $enableval for --enable-sim-endian"); sim_endian="";;
yes) sim_jump="-J";;
no) sim_jump="";;
*) AC_MSG_ERROR("--enable-sim-jump does not take a value"); sim_jump="";;
esac
if test x"$silent" != x"yes" && test x"$sim_endian" != x""; then
echo "Setting endian flags = $sim_endian" 6>&1
fi],[sim_endian=""])dnl
if test x"$silent" != x"yes" && test x"$sim_jump" != x""; then
echo "Setting jump flag = $sim_jump" 6>&1
fi],[sim_jump="-E"
if test x"$silent" != x"yes"; then
echo "Setting jump flag = $sim_jump" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-line-nr,
[ --enable-sim-line-nr=opts Generate extra CPP code that references source rather than generated code],
[case "${enableval}" in
yes) sim_line_nr="";;
no) sim_line_nr="-L";;
*) AC_MSG_ERROR("--enable-sim-line-nr does not take a value"); sim_line_nr="";;
esac
if test x"$silent" != x"yes" && test x"$sim_line_nr" != x""; then
echo "Setting warning flags = $sim_line_nr" 6>&1
fi],[sim_line_nr=""])dnl
AC_ARG_ENABLE(sim-model,
[ --enable-sim-model=which Specify PowerPC to model.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-model=model");;
*) sim_model="-DWITH_MODEL=${enableval}";;
esac
if test x"$silent" != x"yes" && test x"$sim_model" != x""; then
echo "Setting model flags = $sim_model" 6>&1
fi],[sim_model=""])dnl
AC_ARG_ENABLE(sim-model-issue,
[ --enable-sim-model-issue Specify whether to simulate model specific actions],
[case "${enableval}" in
yes) sim_model_issue="-DWITH_MODEL_ISSUE=MODEL_ISSUE_PROCESS";;
no) sim_model_issue="-DWITH_MODEL_ISSUE=MODEL_ISSUE_IGNORE";;
*) AC_MSG_ERROR("--enable-sim-model-issue does not take a value"); sim_model_issue="";;
esac
if test x"$silent" != x"yes"; then
echo "Setting model-issue flags = $sim_model_issue" 6>&1
fi],[sim_model_issue=""])dnl
AC_ARG_ENABLE(sim-monitor,
[ --enable-sim-monitor=mon Specify whether to enable monitoring events.],
[case "${enableval}" in
yes) sim_monitor="-DWITH_MON='MONITOR_INSTRUCTION_ISSUE | MONITOR_LOAD_STORE_UNIT'";;
no) sim_monitor="-DWITH_MON=0";;
instruction) sim_monitor="-DWITH_MON=MONITOR_INSTRUCTION_ISSUE";;
memory) sim_monitor="-DWITH_MON=MONITOR_LOAD_STORE_UNIT";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-mon"); sim_env="";;
esac
if test x"$silent" != x"yes" && test x"$sim_monitor" != x""; then
echo "Setting monitor flags = $sim_monitor" 6>&1
fi],[sim_monitor=""])dnl
AC_ARG_ENABLE(sim-opcode,
[ --enable-sim-opcode=which Override default opcode lookup.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-opcode=file");;
*) if test -f "${srcdir}/${enableval}"; then
sim_opcode="${enableval}"
elif test -f "${srcdir}/ppc-opcode-${enableval}"; then
sim_opcode="ppc-opcode-${enableval}"
else
AC_MSG_ERROR("File $enableval is not an opcode rules file");
sim_opcode="ppc-opcode-complex"
fi;;
esac
if test x"$silent" != x"yes" && test x"$sim_opcode" != x""; then
echo "Setting opcode flags = $sim_opcode" 6>&1
fi],[sim_opcode="ppc-opcode-complex"
if test x"$silent" != x"yes"; then
echo "Setting opcode flags = $sim_opcode"
fi])dnl
AC_ARG_ENABLE(sim-packages,
[ --enable-sim-packages=list Specify the packages to be included in the build.],
[packages=disklabel
case "${enableval}" in
yes) ;;
no) AC_MSG_ERROR("List of packages must be specified for --enable-sim-packages"); packages="";;
,*) packages="${packages}${enableval}";;
*,) packages="${enableval}${packages}";;
*) packages="${enableval}"'';;
esac
sim_pk_src=`echo $packages | sed -e 's/,/.c pk_/g' -e 's/^/pk_/' -e 's/$/.c/'`
sim_pk_obj=`echo $sim_pk_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes" && test x"$packages" != x""; then
echo "Setting packages to $sim_pk_src, $sim_pk_obj"
fi],[packages=disklabel
sim_pk_src=`echo $packages | sed -e 's/,/.c pk_/g' -e 's/^/pk_/' -e 's/$/.c/'`
sim_pk_obj=`echo $sim_pk_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes"; then
echo "Setting packages to $sim_pk_src, $sim_pk_obj"
fi])dnl
AC_ARG_ENABLE(sim-regparm,
[ --enable-sim-regparm=nr-parm Pass parameters in registers instead of on the stack - x86/GCC specific.],
@ -283,39 +417,18 @@ if test x"$silent" != x"yes" && test x"$sim_regparm" != x""; then
echo "Setting regparm flags = $sim_regparm" 6>&1
fi],[sim_regparm=""])dnl
AC_ARG_ENABLE(sim-stdcall,
[ --enable-sim-stdcall=type Use an alternative function call/return mechanism - x86/GCC specific.],
[case "${enableval}" in
no) sim_stdcall="" ;;
std*) sim_stdcall="-DWITH_STDCALL=1";;
yes) sim_stdcall="-DWITH_STDCALL=1";;
*) AC_MSG_ERROR("Unknown value $enableval for --enable-sim-stdcall"); sim_stdcall="";;
esac
if test x"$silent" != x"yes" && test x"$sim_stdcall" != x""; then
echo "Setting function call flags = $sim_stdcall" 6>&1
fi],[sim_stdcall=""])dnl
AC_ARG_ENABLE(sim-hostendian,
[ --enable-sim-hostendain=end Specify host byte endian orientation.],
AC_ARG_ENABLE(sim-reserved-bits,
[ --enable-sim-reserved-bits Specify whether to check reserved bits in instruction.],
[case "${enableval}" in
no) sim_hostendian="-DWITH_HOST_BYTE_ORDER=0";;
b*|B*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN";;
l*|L*) sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN";;
*) AC_MSG_ERROR("Unknown value $enableval for --enable-sim-hostendian"); sim_hostendian="";;
yes) sim_reserved="-DWITH_RESERVED_BITS=1";;
no) sim_reserved="-DWITH_RESERVED_BITS=0";;
*) AC_MSG_ERROR("--enable-sim-reserved-bits does not take a value"); sim_reserved="";;
esac
if test x"$silent" != x"yes" && test x"$sim_hostendian" != x""; then
echo "Setting hostendian flags = $sim_hostendian" 6>&1
fi],[
if test "x$cross_compiling" = "xno"; then
AC_C_BIGENDIAN
if test $ac_cv_c_bigendian = yes; then
sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN"
else
sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN"
fi
else
sim_hostendian="-DWITH_HOST_BYTE_ORDER=0"
fi])dnl
if test x"$silent" != x"yes" && test x"$sim_reserved" != x""; then
echo "Setting reserved flags = $sim_reserved" 6>&1
fi],[sim_reserved=""])dnl
AC_ARG_ENABLE(sim-smp,
[ --enable-sim-smp=n Specify number of processors to configure for.],
@ -331,49 +444,46 @@ if test x"$silent" != x"yes"; then
echo "Setting smp flags = $sim_smp" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-xor-endian,
[ --enable-sim-xor-endian=n Specify number bytes involved in PowerPC XOR bi-endian mode (default 8).],
[case "${enableval}" in
yes) sim_xor_endian="-DWITH_XOR_ENDIAN=8";;
no) sim_xor_endian="-DWITH_XOR_ENDIAN=0";;
*) sim_xor_endian="-DWITH_XOR_ENDIAN=$enableval";;
esac
if test x"$silent" != x"yes" && test x"$sim_xor_endian" != x""; then
echo "Setting xor-endian flag = $sim_xor_endian" 6>&1
fi],[sim_xor_endian=""])dnl
AC_ARG_ENABLE(sim-bitsize,
[ --enable-sim-bitsize=n Specify target bitsize (32 or 64).],
AC_ARG_ENABLE(sim-stdcall,
[ --enable-sim-stdcall=type Use an alternative function call/return mechanism - x86/GCC specific.],
[case "${enableval}" in
32|64) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=$enableval";;
*) AC_MSG_ERROR("--enable-sim-bitsize was given $enableval, expected 32 or 64"); sim_bitsize="";;
no) sim_stdcall="" ;;
std*) sim_stdcall="-DWITH_STDCALL=1";;
yes) sim_stdcall="-DWITH_STDCALL=1";;
*) AC_MSG_ERROR("Unknown value $enableval for --enable-sim-stdcall"); sim_stdcall="";;
esac
if test x"$silent" != x"yes" && test x"$sim_bitsize" != x""; then
echo "Setting bitsize flags = $sim_bitsize" 6>&1
fi],[sim_bitsize=""])dnl
if test x"$silent" != x"yes" && test x"$sim_stdcall" != x""; then
echo "Setting function call flags = $sim_stdcall" 6>&1
fi],[sim_stdcall=""])dnl
AC_ARG_ENABLE(sim-hostbitsize,
[ --enable-sim-hostbitsize=32|64 Specify host bitsize (32 or 64).],
[case "${enableval}" in
32|64) sim_hostbitsize="-DWITH_HOST_WORD_BITSIZE=$enableval";;
*) AC_MSG_ERROR("--enable-sim-hostbitsize was given $enableval, expected 32 or 64"); sim_hostbitsize="";;
esac
if test x"$silent" != x"yes" && test x"$sim_hostbitsize" != x""; then
echo "Setting hostbitsize flags = $sim_hostbitsize" 6>&1
fi],[sim_hostbitsize=""])dnl
AC_ARG_ENABLE(sim-env,
[ --enable-sim-env=env Specify target environment (operating, virtual, user).],
AC_ARG_ENABLE(sim-stdio,
[ --enable-sim-stdio Specify whether to use stdio for console input/output.],
[case "${enableval}" in
operating | os | oea) sim_env="-DWITH_ENVIRONMENT=OPERATING_ENVIRONMENT";;
virtual | vea) sim_env="-DWITH_ENVIRONMENT=VIRTUAL_ENVIRONMENT";;
user | uea) sim_env="-DWITH_ENVIRONMENT=USER_ENVIRONMENT";;
no) sim_env="-DWITH_ENVIRONMENT=0";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-env"); sim_env="";;
yes) sim_stdio="-DWITH_STDIO=DO_USE_STDIO";;
no) sim_stdio="-DWITH_STDIO=DONT_USE_STDIO";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-stdio"); sim_stdio="";;
esac
if test x"$silent" != x"yes" && test x"$sim_env" != x""; then
echo "Setting env flags = $sim_env" 6>&1
fi],[sim_env=""])dnl
if test x"$silent" != x"yes" && test x"$sim_stdio" != x""; then
echo "Setting stdio flags = $sim_stdio" 6>&1
fi],[sim_stdio=""])dnl
AC_ARG_ENABLE(sim-switch,
[ --enable-sim-switch Use a switch instead of a table for instruction call.],
[case "${enableval}" in
yes) sim_switch="-s";;
no) sim_switch="";;
*) AC_MSG_ERROR("--enable-sim-switch does not take a value"); sim_switch="";;
esac
if test x"$silent" != x"yes" && test x"$sim_switch" != x""; then
echo "Setting switch flags = $sim_switch" 6>&1
fi],[sim_switch="";
if test x"$silent" != x"yes"; then
echo "Setting switch flags = $sim_switch" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-timebase,
[ --enable-sim-timebase Specify whether the PPC timebase is supported.],
@ -386,17 +496,6 @@ if test x"$silent" != x"yes" && test x"$sim_timebase" != x""; then
echo "Setting timebase flags = $sim_timebase" 6>&1
fi],[sim_timebase=""])dnl
AC_ARG_ENABLE(sim-alignment,
[ --enable-sim-alignment=align Specify strict or nonstrict alignment.],
[case "${enableval}" in
yes | strict | STRICT) sim_alignment="-DWITH_ALIGNMENT=STRICT_ALIGNMENT";;
no | nonstrict | NONSTRICT) sim_alignment="-DWITH_ALIGNMENT=NONSTRICT_ALIGNMENT";;
0 | default | DEFAULT) sim_alignment="-DWITH_ALIGNMENT=0";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-alignment"); sim_alignment="";;
esac
if test x"$silent" != x"yes" && test x"$sim_alignment" != x""; then
echo "Setting alignment flags = $sim_alignment" 6>&1
fi],[sim_alignment=""])dnl
AC_ARG_ENABLE(sim-trace,
[ --enable-sim-trace Specify whether tracing is supported.],
@ -409,93 +508,30 @@ if test x"$silent" != x"yes" && test x"$sim_trace" != x""; then
echo "Setting trace flags = $sim_trace" 6>&1
fi],[sim_trace=""])dnl
AC_ARG_ENABLE(sim-assert,
[ --enable-sim-assert Specify whether to perform random assertions.],
[case "${enableval}" in
yes) sim_assert="-DWITH_ASSERT=1";;
no) sim_assert="-DWITH_ASSERT=0";;
*) AC_MSG_ERROR("--enable-sim-assert does not take a value"); sim_assert="";;
esac
if test x"$silent" != x"yes" && test x"$sim_assert" != x""; then
echo "Setting assert flags = $sim_assert" 6>&1
fi],[sim_assert=""])dnl
AC_ARG_ENABLE(sim-reserved-bits,
[ --enable-sim-reserved-bits Specify whether to check reserved bits in instruction.],
AC_ARG_ENABLE(sim-warnings,
[ --enable-sim-warnings=opts Extra CFLAGS for turning on compiler warnings except for idecode.o, semantics.o and psim.o],
[case "${enableval}" in
yes) sim_reserved="-DWITH_RESERVED_BITS=1";;
no) sim_reserved="-DWITH_RESERVED_BITS=0";;
*) AC_MSG_ERROR("--enable-sim-reserved-bits does not take a value"); sim_reserved="";;
yes) sim_warnings="-Werror -Wall -Wpointer-arith -Wmissing-prototypes -Wmissing-declarations ";;
no) sim_warnings="-w";;
*) sim_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
esac
if test x"$silent" != x"yes" && test x"$sim_reserved" != x""; then
echo "Setting reserved flags = $sim_reserved" 6>&1
fi],[sim_reserved=""])dnl
if test x"$silent" != x"yes" && test x"$sim_warnings" != x""; then
echo "Setting warning flags = $sim_warnings" 6>&1
fi],[sim_warnings=""])dnl
AC_ARG_ENABLE(sim-float,
[ --enable-sim-float Specify whether to use host floating point or simulate.],
[case "${enableval}" in
yes | hard) sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT";;
no | soft) sim_float="-DWITH_FLOATING_POINT=SOFT_FLOATING_POINT";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-float"); sim_float="";;
esac
if test x"$silent" != x"yes" && test x"$sim_float" != x""; then
echo "Setting float flags = $sim_float" 6>&1
fi],[sim_float=""])dnl
AC_ARG_ENABLE(sim-monitor,
[ --enable-sim-monitor=mon Specify whether to enable monitoring events.],
AC_ARG_ENABLE(sim-xor-endian,
[ --enable-sim-xor-endian=n Specify number bytes involved in PowerPC XOR bi-endian mode (default 8).],
[case "${enableval}" in
yes) sim_monitor="-DWITH_MON='MONITOR_INSTRUCTION_ISSUE | MONITOR_LOAD_STORE_UNIT'";;
no) sim_monitor="-DWITH_MON=0";;
instruction) sim_monitor="-DWITH_MON=MONITOR_INSTRUCTION_ISSUE";;
memory) sim_monitor="-DWITH_MON=MONITOR_LOAD_STORE_UNIT";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-mon"); sim_env="";;
yes) sim_xor_endian="-DWITH_XOR_ENDIAN=8";;
no) sim_xor_endian="-DWITH_XOR_ENDIAN=0";;
*) sim_xor_endian="-DWITH_XOR_ENDIAN=$enableval";;
esac
if test x"$silent" != x"yes" && test x"$sim_monitor" != x""; then
echo "Setting monitor flags = $sim_monitor" 6>&1
fi],[sim_monitor=""])dnl
if test x"$silent" != x"yes" && test x"$sim_xor_endian" != x""; then
echo "Setting xor-endian flag = $sim_xor_endian" 6>&1
fi],[sim_xor_endian=""])dnl
AC_ARG_ENABLE(sim-model,
[ --enable-sim-model=which Specify PowerPC to model.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-model=model");;
*) sim_model="-DWITH_MODEL=${enableval}";;
esac
if test x"$silent" != x"yes" && test x"$sim_model" != x""; then
echo "Setting model flags = $sim_model" 6>&1
fi],[sim_model=""])dnl
AC_ARG_ENABLE(sim-default-model,
[ --enable-sim-default-model=which Specify default PowerPC to model.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-default-model=model");;
*) sim_default_model="-DWITH_DEFAULT_MODEL=${enableval}";;
esac
if test x"$silent" != x"yes" && test x"$sim_default_model" != x""; then
echo "Setting default-model flags = $sim_default_model" 6>&1
fi],[sim_model=""])dnl
AC_ARG_ENABLE(sim-model-issue,
[ --enable-sim-model-issue Specify whether to simulate model specific actions],
[case "${enableval}" in
yes) sim_model_issue="-DWITH_MODEL_ISSUE=MODEL_ISSUE_PROCESS";;
no) sim_model_issue="-DWITH_MODEL_ISSUE=MODEL_ISSUE_IGNORE";;
*) AC_MSG_ERROR("--enable-sim-model-issue does not take a value"); sim_model_issue="";;
esac
if test x"$silent" != x"yes"; then
echo "Setting model-issue flags = $sim_model_issue" 6>&1
fi],[sim_model_issue=""])dnl
AC_ARG_ENABLE(sim-stdio,
[ --enable-sim-stdio Specify whether to use stdio for console input/output.],
[case "${enableval}" in
yes) sim_stdio="-DWITH_STDIO=DO_USE_STDIO";;
no) sim_stdio="-DWITH_STDIO=DONT_USE_STDIO";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-stdio"); sim_stdio="";;
esac
if test x"$silent" != x"yes" && test x"$sim_stdio" != x""; then
echo "Setting stdio flags = $sim_stdio" 6>&1
fi],[sim_stdio=""])dnl
AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/../..)
AC_CANONICAL_SYSTEM

371
sim/ppc/hw_glue.c Normal file
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@ -0,0 +1,371 @@
/* This file is part of the program psim.
Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _HW_GLUE_C_
#define _HW_GLUE_C_
#include "device_table.h"
/* DEVICE
glue - glue to interconnect and test interrupts
DESCRIPTION
The glue device provides two functions. Firstly, it provides a
mechanism for inspecting and driving the interrupt net. Secondly,
it provides a set of boolean primitives that can be used add
combinatorial operations to the interrupt network.
Glue devices have a variable number of big endian <<output>>
registers. Each host-word size. The registers can be both read
and written.
Writing a value to an output register causes an interrupt (of the
specified level) to be driven on the devices corresponding output
interrupt port.
Reading an <<output>> register returns either the last value
written or the most recently computed value (for that register) as
a result of an interrupt ariving (which ever was computed last).
At present the following sub device types are available:
<<glue>>: In addition to driving its output interrupt port with any
value written to an interrupt input port is stored in the
corresponding <<output>> register. Such input interrupts, however,
are not propogated to an output interrupt port.
<<glue-and>>: The bit-wise AND of the interrupt inputs is computed
and then both stored in <<output>> register zero and propogated to
output interrupt output port zero.
PROPERTIES
reg = <address> <size> (required)
Specify the address (within the parent bus) that this device is to
live. The address must be 2048 * sizeof(word) (8k in a 32bit
simulation) aligned.
interrupt-ranges = <int-number> <range> (optional)
If present, this specifies the number of valid interrupt inputs (up
to the maximum of 2048). By default, <<int-number>> is zero and
range is determined by the <<reg>> size.
EXAMPLES
Enable tracing of the device:
| -t glue-device \
Create source, bitwize-and, and sink glue devices. Since the
device at address <<0x10000>> is of size <<8>> it will have two
output interrupt ports.
| -o '/iobus@0xf0000000/glue@0x10000/reg 0x10000 8' \
| -o '/iobus@0xf0000000/glue-and@0x20000/reg 0x20000 4' \
| -o '/iobus@0xf0000000/glue-and/interrupt-ranges 0 2' \
| -o '/iobus@0xf0000000/glue@0x30000/reg 0x30000 4' \
Wire the two source interrupts to the AND device:
| -o '/iobus@0xf0000000/glue@0x10000 > 0 0 /iobus/glue-and' \
| -o '/iobus@0xf0000000/glue@0x10000 > 1 1 /iobus/glue-and' \
Wire the AND device up to the sink so that the and's output is not
left open.
| -o '/iobus@0xf0000000/glue-and > 0 0 /iobus/glue@0x30000' \
With the above configuration. The client program is able to
compute a two bit AND. For instance the <<C>> stub below prints 1
AND 0.
| unsigned *input = (void*)0xf0010000;
| unsigned *output = (void*)0xf0030000;
| unsigned ans;
| input[0] = htonl(1);
| input[1] = htonl(0);
| ans = ntohl(*output);
| write_string("AND is ");
| write_int(ans);
| write_line();
BUGS
A future implementation of this device may support multiple
interrupt ranges.
Some of the devices listed may not yet be fully implemented.
Additional devices such as a dff, an inverter or a latch may be
useful.
*/
enum {
max_nr_interrupts = 2048,
};
typedef enum _hw_glue_type {
glue_undefined = 0,
glue_io,
glue_and,
glue_nand,
glue_or,
glue_xor,
glue_nor,
glue_not,
} hw_glue_type;
typedef struct _hw_glue_device {
hw_glue_type type;
int int_number;
int *input;
int nr_inputs;
unsigned sizeof_input;
/* our output registers */
int space;
unsigned_word address;
unsigned sizeof_output;
int *output;
int nr_outputs;
} hw_glue_device;
static void
hw_glue_init_address(device *me)
{
hw_glue_device *glue = (hw_glue_device*)device_data(me);
/* attach to my parent */
generic_device_init_address(me);
/* establish the output registers */
if (glue->output != NULL) {
memset(glue->output, 0, glue->sizeof_output);
}
else {
reg_property_spec unit;
int reg_nr;
/* find a relevant reg entry */
reg_nr = 0;
while (device_find_reg_array_property(me, "reg", reg_nr, &unit)
&& !device_size_to_attach_size(device_parent(me), &unit.size,
&glue->sizeof_output, me))
reg_nr++;
/* check out the size */
if (glue->sizeof_output == 0)
device_error(me, "at least one reg property size must be nonzero");
if (glue->sizeof_output % sizeof(unsigned_word) != 0)
device_error(me, "reg property size must be %d aligned", sizeof(unsigned_word));
/* and the address */
device_address_to_attach_address(device_parent(me),
&unit.address, &glue->space, &glue->address,
me);
if (glue->address % (sizeof(unsigned_word) * max_nr_interrupts) != 0)
device_error(me, "reg property address must be %d aligned",
sizeof(unsigned_word) * max_nr_interrupts);
glue->nr_outputs = glue->sizeof_output / sizeof(unsigned_word);
glue->output = zalloc(glue->sizeof_output);
}
/* establish the input interrupt ports */
if (glue->input != NULL) {
memset(glue->input, 0, glue->sizeof_input);
}
else {
const device_property *ranges = device_find_property(me, "interrupt-ranges");
if (ranges == NULL) {
glue->int_number = 0;
glue->nr_inputs = glue->nr_outputs;
}
else if (ranges->sizeof_array != sizeof(unsigned_cell) * 2) {
device_error(me, "invalid interrupt-ranges property (incorrect size)");
}
else {
const unsigned_cell *int_range = ranges->array;
glue->int_number = BE2H_cell(int_range[0]);
glue->nr_inputs = BE2H_cell(int_range[1]);
}
glue->sizeof_input = glue->nr_inputs * sizeof(unsigned);
glue->input = zalloc(glue->sizeof_input);
}
/* determine our type */
if (glue->type == glue_undefined) {
const char *name = device_name(me);
if (strcmp(name, "glue") == 0)
glue->type = glue_io;
else if (strcmp(name, "glue-and") == 0)
glue->type = glue_and;
else
device_error(me, "unimplemented glue type");
}
DTRACE(glue, ("int-number %d, nr_inputs %d, nr_outputs %d\n",
glue->int_number, glue->nr_inputs, glue->nr_outputs));
}
static unsigned
hw_glue_io_read_buffer_callback(device *me,
void *dest,
int space,
unsigned_word addr,
unsigned nr_bytes,
cpu *processor,
unsigned_word cia)
{
hw_glue_device *glue = (hw_glue_device*)device_data(me);
int reg = ((addr - glue->address) / sizeof(unsigned_word)) % glue->nr_outputs;
if (nr_bytes != sizeof(unsigned_word)
|| (addr % sizeof(unsigned_word)) != 0)
device_error(me, "missaligned read access (%d:0x%lx:%d) not supported",
space, (unsigned long)addr, nr_bytes);
*(unsigned_word*)dest = H2BE_4(glue->output[reg]);
DTRACE(glue, ("read - interrupt %d (0x%lx), level %d\n",
reg, (unsigned long) addr, glue->output[reg]));
return nr_bytes;
}
static unsigned
hw_glue_io_write_buffer_callback(device *me,
const void *source,
int space,
unsigned_word addr,
unsigned nr_bytes,
cpu *processor,
unsigned_word cia)
{
hw_glue_device *glue = (hw_glue_device*)device_data(me);
int reg = ((addr - glue->address) / sizeof(unsigned_word)) % max_nr_interrupts;
if (nr_bytes != sizeof(unsigned_word)
|| (addr % sizeof(unsigned_word)) != 0)
device_error(me, "missaligned write access (%d:0x%lx:%d) not supported",
space, (unsigned long)addr, nr_bytes);
glue->output[reg] = H2BE_4(*(unsigned_word*)source);
DTRACE(glue, ("write - interrupt %d (0x%lx), level %d\n",
reg, (unsigned long) addr, glue->output[reg]));
device_interrupt_event(me, reg, glue->output[reg], processor, cia);
return nr_bytes;
}
static void
hw_glue_interrupt_event(device *me,
int my_port,
device *source,
int source_port,
int level,
cpu *processor,
unsigned_word cia)
{
hw_glue_device *glue = (hw_glue_device*)device_data(me);
int i;
if (my_port < glue->int_number
|| my_port >= glue->int_number + glue->nr_inputs)
device_error(me, "interrupt %d outside of valid range", my_port);
glue->input[my_port - glue->int_number] = level;
switch (glue->type) {
case glue_io:
{
int port = my_port % glue->nr_outputs;
glue->output[port] = level;
DTRACE(glue, ("input - interrupt %d (0x%lx), level %d\n",
my_port,
(unsigned long)glue->address + port * sizeof(unsigned_word),
level));
break;
}
case glue_and:
glue->output[0] = glue->input[0];
for (i = 1; i < glue->nr_inputs; i++)
glue->output[0] &= glue->input[i];
DTRACE(glue, ("and - interrupt %d, level %d arrived - output %d\n",
my_port, level, glue->output[0]));
device_interrupt_event(me, 0, glue->output[0], processor, cia);
break;
default:
device_error(me, "operator not implemented");
break;
}
}
static const device_interrupt_port_descriptor hw_glue_interrupt_ports[] = {
{ "int", 0, max_nr_interrupts },
{ NULL }
};
static device_callbacks const hw_glue_callbacks = {
{ hw_glue_init_address, NULL },
{ NULL, }, /* address */
{ hw_glue_io_read_buffer_callback,
hw_glue_io_write_buffer_callback, },
{ NULL, }, /* DMA */
{ hw_glue_interrupt_event, NULL, hw_glue_interrupt_ports }, /* interrupt */
{ NULL, }, /* unit */
NULL, /* instance */
};
static void *
hw_glue_create(const char *name,
const device_unit *unit_address,
const char *args)
{
/* create the descriptor */
hw_glue_device *glue = ZALLOC(hw_glue_device);
return glue;
}
const device_descriptor hw_glue_device_descriptor[] = {
{ "glue", hw_glue_create, &hw_glue_callbacks },
{ "glue-and", hw_glue_create, &hw_glue_callbacks },
{ "glue-nand", hw_glue_create, &hw_glue_callbacks },
{ "glue-or", hw_glue_create, &hw_glue_callbacks },
{ "glue-xor", hw_glue_create, &hw_glue_callbacks },
{ "glue-nor", hw_glue_create, &hw_glue_callbacks },
{ "glue-not", hw_glue_create, &hw_glue_callbacks },
{ NULL },
};
#endif /* _HW_GLUE_C_ */

869
sim/ppc/hw_ide.c Normal file
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/* This file is part of the program psim.
Copyright (C) 1996, Andrew Cagney <cagney@highland.com.au>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _HW_IDE_C_
#define _HW_IDE_C_
#include "device_table.h"
/* DEVICE
ide - Integrated Disk Electronics
DESCRIPTION
This device models the primary/secondary <<ide>> controller
described in the [CHRPIO] document.
The controller has separate independant interrupt outputs for each
<<ide>> bus.
PROPERTIES
reg = ... (required)
The <<reg>> property is described in the document [CHRPIO].
ready-delay = <integer> (optional)
If present, this specifies the time that the <<ide>> device takes
to complete an I/O operation.
disk@?/ide-byte-count = <integer> (optional)
disk@?/ide-sector-count = <integer> (optional)
disk@?/ide-head-count = <integer> (optional)
The <<ide>> device checks each child (disk device) node to see if
it has the above properties. If present, these values will be used
to compute the <<LBA>> address in <<CHS>> addressing mode.
EXAMPLES
Enable tracing:
| -t ide-device \
Attach the <<ide>> device to the <<pci>> bus at slot one. Specify
legacy I/O addresses:
| -o '/phb/ide@1/assigned-addresses \
| ni0,0,10,1f0 8 \
| ni0,0,14,3f8 8 \
| ni0,0,18,170 8 \
| ni0,0,1c,378 8 \
| ni0,0,20,200 8' \
| -o '/phb@0x80000000/ide@1/reg \
| 1 0 \
| i0,0,10,0 8 \
| i0,0,18,0 8 \
| i0,0,14,6 1 \
| i0,0,1c,6 1 \
| i0,0,20,0 8' \
Note: the fouth and fifth reg entries specify that the register is
at an offset into the address specified by the base register
(<<assigned-addresses>>); Apart from restrictions placed by the
<<pci>> specification, no restrictions are placed on the number of
base registers specified by the <<assigned-addresses>> property.
Attach a <<disk>> to the primary and a <<cdrom>> to the secondary
<<ide>> controller.
| -o '/phb@0x80000000/ide@1/disk@0/file "zero' \
| -o '/phb@0x80000000/ide@1/cdrom@2/file "/dev/cdrom"' \
Connect the two interrupt outputs (a and b) to a <<glue>> device to
allow testing of the interrupt port. In a real simulation they
would be wired to the interrupt controller.
| -o '/phb@0x80000000/glue@2/reg 2 0 ni0,0,0,0 8' \
| -o '/phb@0x80000000/ide@1 > a 0 /phb@0x80000000/glue@2' \
| -o '/phb@0x80000000/ide@1 > b 1 /phb@0x80000000/glue@2'
BUGS
While the DMA registers are present, DMA support has not yet been
implemented.
The number of supported commands is very limited.
The standards documents appear to be vague on how to specify the
<<unit-address>> of disk devices devices being attached to the
<<ide>> controller. I've chosen to use integers with devices zero
and one going to the primary controller while two and three are
connected to the secondary controller.
REFERENCES
[CHRPIO] PowerPC(tm) Microprocessor Common Hardware Reference
Platform: I/O Device Reference. http://chrp.apple.com/???.
[SCHMIDT] The SCSI Bus and IDE Interface - Protocols, Applications
and Programming. Friedhelm Schmidt (translated by Michael
Schultz). ISBN 0-201-42284-0. Addison-Wesley Publishing Company.
*/
typedef enum _io_direction {
is_read,
is_write,
} io_direction;
enum {
nr_ide_controllers = 2,
nr_ide_drives_per_controller = 2,
nr_fifo_entries = 8192,
};
enum {
/* command register block - read */
ide_data_reg,
ide_error_reg, /*ide_feature_reg*/
ide_sector_count_reg,
ide_sector_number_reg,
ide_cylinder_reg0,
ide_cylinder_reg1,
ide_drive_head_reg,
ide_status_reg, /*ide_command_reg*/
/* command register block - write */
ide_feature_reg, /*ide_error_reg*/
ide_command_reg, /*ide_status_reg*/
/* control register block - read */
ide_alternate_status_reg, /*ide_control_reg*/
ide_control_reg, /*ide_alternate_status_reg*/
/* dma register block */
ide_dma_command_reg,
ide_dma_unused_1_reg,
ide_dma_status_reg,
ide_dma_unused_3_reg,
ide_dma_prd_table_address_reg0,
ide_dma_prd_table_address_reg1,
ide_dma_prd_table_address_reg2,
ide_dma_prd_table_address_reg3,
nr_ide_registers,
};
typedef enum _ide_states {
idle_state,
busy_loaded_state,
busy_drained_state,
busy_dma_state,
busy_command_state,
loading_state,
draining_state,
} ide_states;
static const char *
ide_state_name(ide_states state)
{
switch (state) {
case idle_state: return "idle";
case busy_loaded_state: return "busy_loaded_state";
case busy_drained_state: return "busy_drained_state";
case busy_dma_state: return "busy_dma_state";
case busy_command_state: return "busy_command_state";
case loading_state: return "loading_state";
case draining_state: return "draining_state";
default: return "illegal-state";
}
}
typedef struct _ide_geometry {
int head;
int sector;
int byte;
} ide_geometry;
typedef struct _ide_drive {
int nr;
device *device;
ide_geometry geometry;
ide_geometry default_geometry;
} ide_drive;
typedef struct _ide_controller {
int nr;
ide_states state;
unsigned8 reg[nr_ide_registers];
unsigned8 fifo[nr_fifo_entries];
int fifo_pos;
int fifo_size;
ide_drive *current_drive;
int current_byte;
int current_transfer;
ide_drive drive[nr_ide_drives_per_controller];
device *me;
event_entry_tag event_tag;
int is_interrupting;
signed64 ready_delay;
} ide_controller;
static void
set_interrupt(device *me,
ide_controller *controller)
{
if ((controller->reg[ide_control_reg] & 0x2) == 0) {
DTRACE(ide, ("controller %d - interrupt set\n", controller->nr));
device_interrupt_event(me, controller->nr, 1, NULL, 0);
controller->is_interrupting = 1;
}
}
static void
clear_interrupt(device *me,
ide_controller *controller)
{
if (controller->is_interrupting) {
DTRACE(ide, ("controller %d - interrupt clear\n", controller->nr));
device_interrupt_event(me, controller->nr, 0, NULL, 0);
controller->is_interrupting = 0;
}
}
static void
do_event(void *data)
{
ide_controller *controller = data;
device *me = controller->me;
controller->event_tag = 0;
switch (controller->state) {
case busy_loaded_state:
case busy_drained_state:
if (controller->current_transfer > 0) {
controller->state = (controller->state == busy_loaded_state
? loading_state : draining_state);
}
else {
controller->state = idle_state;
}
set_interrupt(me, controller);
break;
default:
device_error(me, "controller %d - unexpected event", controller->nr);
break;
}
}
static void
schedule_ready_event(device *me,
ide_controller *controller)
{
if (controller->event_tag != 0)
device_error(me, "controller %d - attempting to schedule multiple events",
controller->nr);
controller->event_tag =
device_event_queue_schedule(me, controller->ready_delay,
do_event, controller);
}
static void
do_fifo_read(device *me,
ide_controller *controller,
void *dest,
int nr_bytes)
{
if (controller->state != draining_state)
device_error(me, "controller %d - reading fifo when not ready (%s)",
controller->nr,
ide_state_name(controller->state));
if (controller->fifo_pos + nr_bytes > controller->fifo_size)
device_error(me, "controller %d - fifo underflow", controller->nr);
if (nr_bytes > 0) {
memcpy(dest, &controller->fifo[controller->fifo_pos], nr_bytes);
controller->fifo_pos += nr_bytes;
}
if (controller->fifo_pos == controller->fifo_size) {
controller->current_transfer -= 1;
if (controller->current_transfer > 0
&& controller->current_drive != NULL) {
DTRACE(ide, ("controller %d:%d - reading %d byte block at 0x%x\n",
controller->nr,
controller->current_drive->nr,
controller->fifo_size,
controller->current_byte));
if (device_io_read_buffer(controller->current_drive->device,
controller->fifo,
0, controller->current_byte,
controller->fifo_size,
NULL, 0)
!= controller->fifo_size)
device_error(me, "controller %d - disk %s io read error",
controller->nr,
device_path(controller->current_drive->device));
}
controller->state = busy_drained_state;
controller->fifo_pos = 0;
controller->current_byte += controller->fifo_size;
schedule_ready_event(me, controller);
}
}
static void
do_fifo_write(device *me,
ide_controller *controller,
const void *source,
int nr_bytes)
{
if (controller->state != loading_state)
device_error(me, "controller %d - writing fifo when not ready (%s)",
controller->nr,
ide_state_name(controller->state));
if (controller->fifo_pos + nr_bytes > controller->fifo_size)
device_error(me, "controller %d - fifo overflow", controller->nr);
if (nr_bytes > 0) {
memcpy(&controller->fifo[controller->fifo_pos], source, nr_bytes);
controller->fifo_pos += nr_bytes;
}
if (controller->fifo_pos == controller->fifo_size) {
if (controller->current_transfer > 0
&& controller->current_drive != NULL) {
DTRACE(ide, ("controller %d:%d - writing %d byte block at 0x%x\n",
controller->nr,
controller->current_drive->nr,
controller->fifo_size,
controller->current_byte));
if (device_io_write_buffer(controller->current_drive->device,
controller->fifo,
0, controller->current_byte,
controller->fifo_size,
NULL, 0)
!= controller->fifo_size)
device_error(me, "controller %d - disk %s io write error",
controller->nr,
device_path(controller->current_drive->device));
}
controller->current_transfer -= 1;
controller->fifo_pos = 0;
controller->current_byte += controller->fifo_size;
controller->state = busy_loaded_state;
schedule_ready_event(me, controller);
}
}
static void
setup_fifo(device *me,
ide_controller *controller,
int is_simple,
int is_with_disk,
io_direction direction)
{
/* find the disk */
if (is_with_disk) {
int drive_nr = (controller->reg[ide_drive_head_reg] & 0x10) != 0;
controller->current_drive = &controller->drive[drive_nr];
}
else {
controller->current_drive = NULL;
}
/* number of transfers */
if (is_simple)
controller->current_transfer = 1;
else {
int sector_count = controller->reg[ide_sector_count_reg];
if (sector_count == 0)
controller->current_transfer = 256;
else
controller->current_transfer = sector_count;
}
/* the transfer size */
if (controller->current_drive == NULL)
controller->fifo_size = 512;
else
controller->fifo_size = controller->current_drive->geometry.byte;
/* empty the fifo */
controller->fifo_pos = 0;
/* the starting address */
if (controller->current_drive == NULL)
controller->current_byte = 0;
else if (controller->reg[ide_drive_head_reg] & 0x40) {
/* LBA addressing mode */
controller->current_byte = controller->fifo_size
* (((controller->reg[ide_drive_head_reg] & 0xf) << 24)
| (controller->reg[ide_cylinder_reg1] << 16)
| (controller->reg[ide_cylinder_reg0] << 8)
| (controller->reg[ide_sector_number_reg]));
}
else if (controller->current_drive->geometry.head != 0
&& controller->current_drive->geometry.sector != 0) {
/* CHS addressing mode */
int head_nr = controller->reg[ide_drive_head_reg] & 0xf;
int cylinder_nr = ((controller->reg[ide_cylinder_reg1] << 8)
| controller->reg[ide_cylinder_reg0]);
int sector_nr = controller->reg[ide_sector_number_reg];
controller->current_byte = controller->fifo_size
* ((cylinder_nr * controller->current_drive->geometry.head + head_nr)
* controller->current_drive->geometry.sector + sector_nr - 1);
}
else
device_error(me, "controller %d:%d - CHS addressing disabled",
controller->nr, controller->current_drive->nr);
DTRACE(ide, ("controller %ld:%ld - transfer (%s) %ld blocks of %ld bytes from 0x%lx\n",
(long)controller->nr,
controller->current_drive == NULL ? -1L : (long)controller->current_drive->nr,
direction == is_read ? "read" : "write",
(long)controller->current_transfer,
(long)controller->fifo_size,
(unsigned long)controller->current_byte));
switch (direction) {
case is_read:
/* force a primeing read */
controller->current_transfer += 1;
controller->state = draining_state;
controller->fifo_pos = controller->fifo_size;
do_fifo_read(me, controller, NULL, 0);
break;
case is_write:
controller->state = loading_state;
break;
}
}
static void
do_command(device *me,
ide_controller *controller,
int command)
{
if (controller->state != idle_state)
device_error(me, "controller %d - command when not idle", controller->nr);
switch (command) {
case 0x20: case 0x21: /* read-sectors */
setup_fifo(me, controller, 0/*is_simple*/, 1/*is_with_disk*/, is_read);
break;
case 0x30: case 0x31: /* write */
setup_fifo(me, controller, 0/*is_simple*/, 1/*is_with_disk*/, is_write);
break;
}
}
static unsigned8
get_status(device *me,
ide_controller *controller)
{
switch (controller->state) {
case loading_state:
case draining_state:
return 0x08; /* data req */
case busy_loaded_state:
case busy_drained_state:
return 0x80; /* busy */
case idle_state:
return 0x40; /* drive ready */
default:
device_error(me, "internal error");
return 0;
}
}
/* The address presented to the IDE controler is decoded and then
mapped onto a controller:reg pair */
enum {
nr_address_blocks = 6,
};
typedef struct _address_block {
int space;
unsigned_word base_addr;
unsigned_word bound_addr;
int controller;
int base_reg;
} address_block;
typedef struct _address_decoder {
address_block block[nr_address_blocks];
} address_decoder;
static void
decode_address(device *me,
address_decoder *decoder,
int space,
unsigned_word address,
int *controller,
int *reg,
io_direction direction)
{
int i;
for (i = 0; i < nr_address_blocks; i++) {
if (space == decoder->block[i].space
&& address >= decoder->block[i].base_addr
&& address <= decoder->block[i].bound_addr) {
*controller = decoder->block[i].controller;
*reg = (address
- decoder->block[i].base_addr
+ decoder->block[i].base_reg);
if (direction == is_write) {
switch (*reg) {
case ide_error_reg: *reg = ide_feature_reg; break;
case ide_status_reg: *reg = ide_command_reg; break;
case ide_alternate_status_reg: *reg = ide_control_reg; break;
default: break;
}
}
return;
}
}
device_error(me, "address %d:0x%lx invalid",
space, (unsigned long)address);
}
static void
build_address_decoder(device *me,
address_decoder *decoder)
{
int reg;
for (reg = 1; reg < 6; reg++) {
reg_property_spec unit;
int space;
unsigned_word address;
unsigned size;
/* find and decode the reg property */
if (!device_find_reg_array_property(me, "reg", reg, &unit))
device_error(me, "missing or invalid reg entry %d", reg);
device_address_to_attach_address(device_parent(me), &unit.address,
&space, &address, me);
device_size_to_attach_size(device_parent(me), &unit.size, &size, me);
/* insert it into the address decoder */
switch (reg) {
case 1:
case 2:
/* command register block */
if (size != 8)
device_error(me, "reg entry %d must have a size of 8", reg);
decoder->block[reg-1].space = space;
decoder->block[reg-1].base_addr = address;
decoder->block[reg-1].bound_addr = address + size - 1;
decoder->block[reg-1].controller = (reg + 1) % nr_ide_controllers;
decoder->block[reg-1].base_reg = ide_data_reg;
DTRACE(ide, ("controller %d command register block at %d:0x%lx..0x%lx\n",
decoder->block[reg-1].controller,
decoder->block[reg-1].space,
(unsigned long)decoder->block[reg-1].base_addr,
(unsigned long)decoder->block[reg-1].bound_addr));
break;
case 3:
case 4:
/* control register block */
if (size != 1)
device_error(me, "reg entry %d must have a size of 1", reg);
decoder->block[reg-1].space = space;
decoder->block[reg-1].base_addr = address;
decoder->block[reg-1].bound_addr = address + size - 1;
decoder->block[reg-1].controller = (reg + 1) % nr_ide_controllers;
decoder->block[reg-1].base_reg = ide_alternate_status_reg;
DTRACE(ide, ("controller %d control register block at %d:0x%lx..0x%lx\n",
decoder->block[reg-1].controller,
decoder->block[reg-1].space,
(unsigned long)decoder->block[reg-1].base_addr,
(unsigned long)decoder->block[reg-1].bound_addr));
break;
case 5:
/* dma register block */
if (size != 8)
device_error(me, "reg entry %d must have a size of 8", reg);
decoder->block[reg-1].space = space;
decoder->block[reg-1].base_addr = address;
decoder->block[reg-1].bound_addr = address + 4 - 1;
decoder->block[reg-1].base_reg = ide_dma_command_reg;
decoder->block[reg-1].controller = 0;
DTRACE(ide, ("controller %d dma register block at %d:0x%lx..0x%lx\n",
decoder->block[reg-1].controller,
decoder->block[reg-1].space,
(unsigned long)decoder->block[reg-1].base_addr,
(unsigned long)decoder->block[reg-1].bound_addr));
decoder->block[reg].space = space;
decoder->block[reg].base_addr = address + 4;
decoder->block[reg].bound_addr = address + 8 - 1;
decoder->block[reg].controller = 1;
decoder->block[reg].base_reg = ide_dma_command_reg;
DTRACE(ide, ("controller %d dma register block at %d:0x%lx..0x%lx\n",
decoder->block[reg].controller,
decoder->block[reg-1].space,
(unsigned long)decoder->block[reg].base_addr,
(unsigned long)decoder->block[reg].bound_addr));
break;
default:
device_error(me, "internal error - bad switch");
break;
}
}
}
typedef struct _hw_ide_device {
ide_controller controller[nr_ide_controllers];
address_decoder decoder;
} hw_ide_device;
static void
hw_ide_init_address(device *me)
{
hw_ide_device *ide = device_data(me);
int controller;
int drive;
/* zero some things */
for (controller = 0; controller < nr_ide_controllers; controller++) {
memset(&ide->controller[controller], 0, sizeof(ide_controller));
for (drive = 0; drive < nr_ide_drives_per_controller; drive++) {
ide->controller[controller].drive[drive].nr = drive;
}
ide->controller[controller].me = me;
if (device_find_property(me, "ready-delay") != NULL)
ide->controller[controller].ready_delay =
device_find_integer_property(me, "ready-delay");
}
/* attach this device to its parent */
generic_device_init_address(me);
/* determine our own address map */
build_address_decoder(me, &ide->decoder);
}
static void
hw_ide_attach_address(device *me,
attach_type type,
int space,
unsigned_word addr,
unsigned nr_bytes,
access_type access,
device *client) /*callback/default*/
{
hw_ide_device *ide = (hw_ide_device*)device_data(me);
int controller_nr = addr / nr_ide_drives_per_controller;
int drive_nr = addr % nr_ide_drives_per_controller;
ide_controller *controller;
ide_drive *drive;
if (controller_nr >= nr_ide_controllers)
device_error(me, "no controller for disk %s",
device_path(client));
controller = &ide->controller[controller_nr];
drive = &controller->drive[drive_nr];
drive->device = client;
if (device_find_property(client, "ide-byte-count") != NULL)
drive->geometry.byte = device_find_integer_property(client, "ide-byte-count");
else
drive->geometry.byte = 512;
if (device_find_property(client, "ide-sector-count") != NULL)
drive->geometry.sector = device_find_integer_property(client, "ide-sector-count");
if (device_find_property(client, "ide-head-count") != NULL)
drive->geometry.head = device_find_integer_property(client, "ide-head-count");
drive->default_geometry = drive->geometry;
DTRACE(ide, ("controller %d:%d %s byte-count %d, sector-count %d, head-count %d\n",
controller_nr,
drive->nr,
device_path(client),
drive->geometry.byte,
drive->geometry.sector,
drive->geometry.head));
}
static unsigned
hw_ide_io_read_buffer(device *me,
void *dest,
int space,
unsigned_word addr,
unsigned nr_bytes,
cpu *processor,
unsigned_word cia)
{
hw_ide_device *ide = (hw_ide_device *)device_data(me);
int control_nr;
int reg;
ide_controller *controller;
/* find the interface */
decode_address(me, &ide->decoder, space, addr, &control_nr, &reg, is_read);
controller = & ide->controller[control_nr];
/* process the transfer */
memset(dest, 0, nr_bytes);
switch (reg) {
case ide_data_reg:
do_fifo_read(me, controller, dest, nr_bytes);
break;
case ide_status_reg:
*(unsigned8*)dest = get_status(me, controller);
clear_interrupt(me, controller);
break;
case ide_alternate_status_reg:
*(unsigned8*)dest = get_status(me, controller);
break;
case ide_error_reg:
case ide_sector_count_reg:
case ide_sector_number_reg:
case ide_cylinder_reg0:
case ide_cylinder_reg1:
case ide_drive_head_reg:
case ide_control_reg:
case ide_dma_command_reg:
case ide_dma_status_reg:
case ide_dma_prd_table_address_reg0:
case ide_dma_prd_table_address_reg1:
case ide_dma_prd_table_address_reg2:
case ide_dma_prd_table_address_reg3:
*(unsigned8*)dest = controller->reg[reg];
break;
default:
device_error(me, "bus-error at address 0x%lx", addr);
break;
}
return nr_bytes;
}
static unsigned
hw_ide_io_write_buffer(device *me,
const void *source,
int space,
unsigned_word addr,
unsigned nr_bytes,
cpu *processor,
unsigned_word cia)
{
hw_ide_device *ide = (hw_ide_device *)device_data(me);
int control_nr;
int reg;
ide_controller *controller;
/* find the interface */
decode_address(me, &ide->decoder, space, addr, &control_nr, &reg, is_write);
controller = &ide->controller[control_nr];
/* process the access */
switch (reg) {
case ide_data_reg:
do_fifo_write(me, controller, source, nr_bytes);
break;
case ide_command_reg:
do_command(me, controller, *(unsigned8*)source);
break;
case ide_control_reg:
controller->reg[reg] = *(unsigned8*)source;
/* possibly cancel interrupts */
if ((controller->reg[reg] & 0x02) == 0x02)
clear_interrupt(me, controller);
break;
case ide_feature_reg:
case ide_sector_count_reg:
case ide_sector_number_reg:
case ide_cylinder_reg0:
case ide_cylinder_reg1:
case ide_drive_head_reg:
case ide_dma_command_reg:
case ide_dma_status_reg:
case ide_dma_prd_table_address_reg0:
case ide_dma_prd_table_address_reg1:
case ide_dma_prd_table_address_reg2:
case ide_dma_prd_table_address_reg3:
controller->reg[reg] = *(unsigned8*)source;
break;
default:
device_error(me, "bus-error at 0x%lx", addr);
break;
}
return nr_bytes;
}
static const device_interrupt_port_descriptor hw_ide_interrupt_ports[] = {
{ "a", 0, 0 },
{ "b", 1, 0 },
{ "c", 2, 0 },
{ "d", 3, 0 },
{ NULL }
};
static device_callbacks const hw_ide_callbacks = {
{ hw_ide_init_address, },
{ hw_ide_attach_address, }, /* attach */
{ hw_ide_io_read_buffer, hw_ide_io_write_buffer, },
{ NULL, }, /* DMA */
{ NULL, NULL, hw_ide_interrupt_ports }, /* interrupt */
{ generic_device_unit_decode,
generic_device_unit_encode,
generic_device_address_to_attach_address,
generic_device_size_to_attach_size },
};
static void *
hw_ide_create(const char *name,
const device_unit *unit_address,
const char *args)
{
hw_ide_device *ide = ZALLOC(hw_ide_device);
return ide;
}
const device_descriptor hw_ide_device_descriptor[] = {
{ "ide", hw_ide_create, &hw_ide_callbacks },
{ NULL, },
};
#endif /* _HW_IDE_ */

1827
sim/ppc/hw_opic.c Normal file
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98
sim/ppc/hw_pic.c
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@ -1,98 +0,0 @@
/* ICU device: icu@<address>
<address> : read - processor nr
<address> : write - interrupt processor nr
<address> + 4 : read - nr processors
Single byte registers that control a simple ICU.
Illustrates passing of events to parent device. Passing of
interrupts to an interrupt destination. */
static unsigned
icu_io_read_buffer_callback(device *me,
void *dest,
int space,
unsigned_word addr,
unsigned nr_bytes,
cpu *processor,
unsigned_word cia)
{
memset(dest, 0, nr_bytes);
switch (addr & 4) {
case 0:
*(unsigned_1*)dest = cpu_nr(processor);
break;
case 4:
*(unsigned_1*)dest =
device_find_integer_property(me, "/openprom/options/smp");
break;
}
return nr_bytes;
}
static unsigned
icu_io_write_buffer_callback(device *me,
const void *source,
int space,
unsigned_word addr,
unsigned nr_bytes,
cpu *processor,
unsigned_word cia)
{
unsigned_1 val = H2T_1(*(unsigned_1*)source);
/* tell the parent device that the interrupt lines have changed.
For this fake ICU. The interrupt lines just indicate the cpu to
interrupt next */
device_interrupt_event(me,
val, /*my_port*/
val, /*val*/
processor, cia);
return nr_bytes;
}
static void
icu_do_interrupt(event_queue *queue,
void *data)
{
cpu *target = (cpu*)data;
/* try to interrupt the processor. If the attempt fails, try again
on the next tick */
if (!external_interrupt(target))
event_queue_schedule(queue, 1, icu_do_interrupt, target);
}
static void
icu_interrupt_event_callback(device *me,
int my_port,
device *source,
int source_port,
int level,
cpu *processor,
unsigned_word cia)
{
/* the interrupt controller can't interrupt a cpu at any time.
Rather it must synchronize with the system clock before
performing an interrupt on the given processor */
psim *system = cpu_system(processor);
cpu *target = psim_cpu(system, my_port);
if (target != NULL) {
event_queue *events = cpu_event_queue(target);
event_queue_schedule(events, 1, icu_do_interrupt, target);
}
}
static device_callbacks const icu_callbacks = {
{ generic_device_init_address, },
{ NULL, }, /* address */
{ icu_io_read_buffer_callback,
icu_io_write_buffer_callback, },
{ NULL, }, /* DMA */
{ icu_interrupt_event_callback, },
{ NULL, }, /* unit */
};

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sim/ppc/hw_trace.c Normal file
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/* This file is part of the program psim.
Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _HW_TRACE_C_
#define _HW_TRACE_C_
#include "device_table.h"
#include <stdarg.h>
/* DEVICE
trace - the properties of this dummy device specify trace options
DESCRIPTION
The properties of this device are used, during initialization, to
specify the value various simulation trace options. The
initialization can occure implicitly (during device tree init) or
explicitly using this devices ioctl method.
The actual options and their default values (for a given target)
are defined in the file debug.
This device is normally a child of the /openprom node.
EXAMPLE
The trace option dump-device-tree can be enabled by specifying the
option:
| -o '/openprom/trace/dump-device-tree 0x1'
Alternativly the shorthand version:
| -t dump-device-tree
can be used. */
static void
hw_trace_init_data(device *me)
{
const device_property *prop = device_find_property(me, NULL);
while (prop != NULL) {
const char *name = prop->name;
unsigned32 value = device_find_integer_property(me, name);
trace_option(name, value);
prop = device_next_property(prop);
}
}
/* Hook to allow the (re) initialization of the trace options at any
time */
static int
hw_trace_ioctl(device *me,
cpu *processor,
unsigned_word cia,
device_ioctl_request request,
va_list ap)
{
switch (request) {
case device_ioctl_set_trace:
hw_trace_init_data(me);
break;
default:
device_error(me, "insupported ioctl request");
break;
}
return 0;
}
static device_callbacks const hw_trace_callbacks = {
{ NULL, hw_trace_init_data, }, /* init */
{ NULL, }, /* address */
{ NULL, }, /* IO */
{ NULL, }, /* DMA */
{ NULL, }, /* interrupt */
{ NULL, }, /* unit */
NULL, /* instance-create */
hw_trace_ioctl,
};
const device_descriptor hw_trace_device_descriptor[] = {
{ "trace", NULL, &hw_trace_callbacks },
{ NULL },
};
#endif _HW_TRACE_C_

139
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/* This file is part of the program psim.
Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _TREE_H_
#define _TREE_H_
#ifndef INLINE_TREE
#define INLINE_TREE
#endif
/* Constructing the device tree:
The initial device tree populated with devices and basic properties
is created using the function <<device_tree_add_parsed()>>. This
function parses a PSIM device specification and uses it to populate
the tree accordingly.
This function accepts a printf style formatted string as the
argument that describes the entry. Any properties or interrupt
connections added to a device tree using this function are marked
as having a permenant disposition. When the tree is (re)
initialized they will be restored to their initial value.
*/
EXTERN_TREE\
(device *) tree_parse
(device *root,
const char *fmt,
...) __attribute__ ((format (printf, 2, 3)));
INLINE_TREE\
(void) tree_usage
(int verbose);
INLINE_TREE\
(void) tree_print
(device *root);
INLINE_TREE\
(device_instance*) tree_instance
(device *root,
const char *device_specifier);
/* Tree traversal::
The entire device tree can be traversed using the
<<device_tree_traverse()>> function. The traversal can be in
either pre- or postfix order.
*/
typedef void (tree_traverse_function)
(device *device,
void *data);
INLINE_DEVICE\
(void) tree_traverse
(device *root,
tree_traverse_function *prefix,
tree_traverse_function *postfix,
void *data);
/* Tree lookup::
The function <<tree_find_device()>> will attempt to locate
the specified device within the tree. If the device is not found a
NULL device is returned.
*/
INLINE_TREE\
(device *) tree_find_device
(device *root,
const char *path);
INLINE_TREE\
(const device_property *) tree_find_property
(device *root,
const char *path_to_property);
INLINE_TREE\
(int) tree_find_boolean_property
(device *root,
const char *path_to_property);
INLINE_TREE\
(signed_cell) tree_find_integer_property
(device *root,
const char *path_to_property);
INLINE_TREE\
(device_instance *) tree_find_ihandle_property
(device *root,
const char *path_to_property);
INLINE_TREE\
(const char *) tree_find_string_property
(device *root,
const char *path_to_property);
/* Initializing the created tree:
Once a device tree has been created the <<device_tree_init()>>
function is used to initialize it. The exact sequence of events
that occure during initialization are described separatly.
*/
INLINE_TREE\
(void) tree_init
(device *root,
psim *system);
#endif /* _TREE_H_ */