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Commit 7d155a9a authored by Andy Grover's avatar Andy Grover
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Merge groveronline.com:/root/bk/linux-2.5 

into groveronline.com:/root/bk/linux-acpi
parents 7b874823 8a257dca
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CREDITS
View file @ 7d155a9a
......@@ -1081,6 +1081,11 @@ D: Made support for modules, ramdisk, generic-serial, etc. optional.
D: Transformed old user space bdflush into 1st kernel thread - kflushd.
D: Many other patches, documentation files, mini kernels, utilities, ...
N: Masanori GOTO
E: gotom@debian.or.jp
D: Workbit NinjaSCSI-32Bi/UDE driver
S: Japan
N: John E. Gotts
E: jgotts@linuxsavvy.com
D: kernel hacker
......@@ -3338,6 +3343,12 @@ S: POB 1822
S: Socorro NM, 87801
S: USA
N: Hiroshi YOKOTA
E: yokota@netlab.is.tsukuba.ac.jp
D: Workbit NinjaSCSI-3/32Bi PCMCIA driver
D: Workbit NinjaSCSI-32Bi/UDE driver
S: Japan
N: Eric Youngdale
E: eric@andante.org
W: http://www.andante.org
......
Documentation/DocBook/Makefile
View file @ 7d155a9a
......@@ -154,7 +154,6 @@ LOG := $(patsubst %.sgml, %.log, $(BOOKS))
OUT := $(patsubst %.sgml, %.out, $(BOOKS))
clean:
@echo 'Cleaning up (DocBook)'
@rm -f core *~
@rm -f $(BOOKS)
@rm -f $(DVI) $(AUX) $(TEX) $(LOG) $(OUT)
......@@ -162,7 +161,6 @@ clean:
@rm -f $(C-procfs-example)
mrproper:
@echo 'Making mrproper (DocBook)'
@rm -f $(PS) $(PDF)
@rm -f -r $(HTML) $(patsubst %.html,%,$(HTML))
......
Documentation/filesystems/ext3.txt 0 → 100644
View file @ 7d155a9a
Ext3 Filesystem
===============
ext3 was originally released in September 1999. Written by Stephen Tweedie
for 2.2 branch, and ported to 2.4 kernels by Peter Braam, Andreas Dilger,
Andrew Morton, Alexander Viro, Ted Ts'o and Stephen Tweedie.
ext3 is ext2 filesystem enhanced with journalling capabilities.
Options
=======
When mounting an ext3 filesystem, the following option are accepted:
(*) == default
jounal=update Update the ext3 file system's journal to the
current format.
journal=inum When a journal already exists, this option is
ignored. Otherwise, it specifies the number of
the inode which will represent the ext3 file
system's journal file.
bsddf (*) Make 'df' act like BSD.
minixdf Make 'df' act like Minix.
check=none Don't do extra checking of bitmaps on mount.
nocheck
debug Extra debugging information is sent to syslog.
noload Don't load the journal on mounting.
errors=remount-ro(*) Remount the filesystem read-only on an error.
errors=continue Keep going on a filesystem error.
errors=panic Panic and halt the machine if an error occurs.
grpid Give objects the same group ID as their creator.
bsdgroups
nogrpid (*) New objects have the group ID of their creator.
sysvgroups
resgid=n The group ID which may use the reserved blocks.
resuid=n The user ID which may use the reserved blocks.
sb=n Use alternate superblock at this location.
data=journal All data are commited into the journal prior
to being written into the main file system.
data=ordered (*) All data are forced directly out to the main file
system prior to its metadata being commited to
the journal.
data=writeback Data ordering is not preserved, data may be
written into the main file system after its
metadata has been committed to the journal.
quota Quota options are currently silently ignored.
noquota (see fs/ext3/super.c, line 594)
grpquota
usrquota
Specification
=============
ext3 shares all disk implementation with ext2 filesystem, and add
transactions capabilities to ext2. Journaling is done by the
Journaling block device layer.
Journaling Block Device layer
-----------------------------
The Journaling Block Device layer (JBD) isn't ext3 specific. It was
design to add journaling capabilities on a block device. The ext3
filesystem code will inform the JBD of modifications it is performing
(Call a transaction). the journal support the transactions start and
stop, and in case of crash, the journal can replayed the transactions
to put the partition on a consistant state fastly.
handles represent a single atomic update to a filesystem. JBD can
handle external journal on a block device.
Data Mode
---------
There's 3 different data modes:
* writeback mode
In data=writeback mode, ext3 does not journal data at all. This mode
provides a similar level of journaling as XFS, JFS, and ReiserFS in its
default mode - metadata journaling. A crash+recovery can cause
incorrect data to appear in files which were written shortly before the
crash. This mode will typically provide the best ext3 performance.
* ordered mode
In data=ordered mode, ext3 only officially journals metadata, but it
logically groups metadata and data blocks into a single unit called a
transaction. When it's time to write the new metadata out to disk, the
associated data blocks are written first. In general, this mode
perform slightly slower than writeback but significantly faster than
journal mode.
* journal mode
data=journal mode provides full data and metadata journaling. All new
data is written to the journal first, and then to its final location.
In the event of a crash, the journal can be replayed, bringing both
data and metadata into a consistent state. This mode is the slowest
except when data needs to be read from and written to disk at the same
time where it outperform all others mode.
Compatibility
-------------
Ext2 partitions can be easily convert to ext3, with `tune2fs -j <dev>`.
Ext3 is fully compatible with Ext2. Ext3 partitions can easily be
mounted as Ext2.
External Tools
==============
see manual pages to know more.
tune2fs: create a ext3 journal on a ext2 partition with the -j flags
mke2fs: create a ext3 partition with the -j flags
debugfs: ext2 and ext3 file system debugger
References
==========
kernel source: file:/usr/src/linux/fs/ext3
file:/usr/src/linux/fs/jbd
programs: http://e2fsprogs.sourceforge.net
useful link:
http://www.zip.com.au/~akpm/linux/ext3/ext3-usage.html
http://www-106.ibm.com/developerworks/linux/library/l-fs7/
http://www-106.ibm.com/developerworks/linux/library/l-fs8/
Documentation/s390/CommonIO
View file @ 7d155a9a
......@@ -123,9 +123,6 @@ Command line parameters
* /proc/chpids
This entry will only show up if you specified CONFIG_CHSC=y during kernel
config.
This entry serves a dual purpose:
- show which chpids are currently known to Linux and their status (online,
......
Documentation/sound/oss/Maestro3
View file @ 7d155a9a
......@@ -71,10 +71,18 @@ There are very few options to the driver. One is 'debug' which will
tell the driver to print minimal debugging information as it runs. This
can be collected with 'dmesg' or through the klogd daemon.
The other is 'external_amp', which tells the driver to attempt to enable
One is 'external_amp', which tells the driver to attempt to enable
an external amplifier. This defaults to '1', you can tell the driver
not to bother enabling such an amplifier by setting it to '0'.
And the last is 'gpio_pin', which tells the driver which GPIO pin number
the external amp uses (0-15), The Allegro uses 8 by default, all others 1.
If everything loads correctly and seems to be working but you get no sound,
try tweaking this value.
Systems known to need a different value
Panasonic ToughBook CF-72: gpio_pin=13
Power Management
----------------
......
MAINTAINERS
View file @ 7d155a9a
......@@ -1166,6 +1166,14 @@ M: yokota@netlab.is.tsukuba.ac.jp
W: http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/
S: Maintained
NINJA SCSI-32Bi/UDE PCI/CARDBUS SCSI HOST ADAPTER DRIVER
P: GOTO Masanori
M: gotom@debian.or.jp
P: YOKOTA Hiroshi
M: yokota@netlab.is.tsukuba.ac.jp
W: http://www.netlab.is.tsukuba.ac.jp/~yokota/izumi/ninja/
S: Maintained
NON-IDE/NON-SCSI CDROM DRIVERS [GENERAL] (come on, crew - mark your responsibility)
P: Eberhard Moenkeberg
M: emoenke@gwdg.de
......@@ -1433,6 +1441,12 @@ M: Kai.Makisara@metla.fi
L: linux-scsi@vger.kernel.org
S: Maintained
SCx200 CPU SUPPORT
P: Christer Weinigel
M: christer@weinigel.se
W: http://www.weinigel.se
S: Supported
SGI VISUAL WORKSTATION 320 AND 540
P: Bent Hagemark
M: bh@sgi.com
......
Makefile
View file @ 7d155a9a
This diff is collapsed.
Rules.make
View file @ 7d155a9a
......@@ -8,23 +8,38 @@ comma := ,
empty :=
space := $(empty) $(empty)
# Figure out paths
# Some bug traps
# ---------------------------------------------------------------------------
# Find the path relative to the toplevel dir, $(RELDIR), and express
# the toplevel dir as a relative path from this dir, $(TOPDIR_REL)
ifeq ($(findstring $(TOPDIR),$(CURDIR)),)
# Can only happen when something is built out of tree
RELDIR := $(CURDIR)
TOPDIR_REL := $(TOPDIR)
else
RELDIR := $(subst $(TOPDIR)/,,$(CURDIR))
TOPDIR_REL := $(subst $(space),,$(foreach d,$(subst /, ,$(RELDIR)),../))
ifdef O_TARGET
$(error kbuild: $(obj)/Makefile - Usage of O_TARGET := $(O_TARGET) is obsolete in 2.5. Please fix!)
endif
ifdef L_TARGET
ifneq ($(L_TARGET),lib.a)
$(warning kbuild: $(obj)/Makefile - L_TARGET := $(L_TARGET) target shall be renamed to lib.a. Please fix!)
endif
endif
ifdef list-multi
$(warning kbuild: $(obj)/Makefile - list-multi := $(list-multi) is obsolete in 2.5. Please fix!)
endif
# Some paths for the Makefiles to use
# ---------------------------------------------------------------------------
# FIXME. For now, we leave it possible to use make -C or make -f
# to do work in subdirs.
ifndef obj
obj = .
CFLAGS := $(patsubst -I%,-I$(TOPDIR)/%,$(patsubst -I$(TOPDIR)/%,-I%,$(CFLAGS)))
AFLAGS := $(patsubst -I%,-I$(TOPDIR)/%,$(patsubst -I$(TOPDIR)/%,-I%,$(AFLAGS)))
endif
# For use in the quiet output
echo_target = $@
# Usage:
#
# $(obj)/target.o : target.o in the build dir
......@@ -41,12 +56,7 @@ endif
# We don't support separate source / object yet, so these are just
# placeholders for now
obj := .
src := .
# For use in the quiet output
echo_target = $(RELDIR)/$@
src := $(obj)
# Figure out what we need to build from the various variables
# ===========================================================================
......@@ -84,16 +94,8 @@ __obj-y = $(filter-out export.o,$(obj-y))
__obj-m = $(filter-out export.o,$(obj-m))
# if $(foo-objs) exists, foo.o is a composite object
__multi-used-y := $(sort $(foreach m,$(__obj-y), $(if $($(m:.o=-objs)), $(m))))
__multi-used-m := $(sort $(foreach m,$(__obj-m), $(if $($(m:.o=-objs)), $(m))))
# FIXME: Rip this out later
# Backwards compatibility: if a composite object is listed in
# $(list-multi), skip it here, since the Makefile will have an explicit
# link rule for it
multi-used-y := $(filter-out $(list-multi),$(__multi-used-y))
multi-used-m := $(filter-out $(list-multi),$(__multi-used-m))
multi-used-y := $(sort $(foreach m,$(__obj-y), $(if $($(m:.o=-objs)), $(m))))
multi-used-m := $(sort $(foreach m,$(__obj-m), $(if $($(m:.o=-objs)), $(m))))
# Build list of the parts of our composite objects, our composite
# objects depend on those (obviously)
......@@ -111,6 +113,21 @@ real-objs-m := $(foreach m, $(obj-m), $(if $($(m:.o=-objs)),$($(m:.o=-objs)),$(m
# Only build module versions for files which are selected to be built
export-objs := $(filter $(export-objs),$(real-objs-y) $(real-objs-m))
# Add subdir path
EXTRA_TARGETS := $(addprefix $(obj)/,$(EXTRA_TARGETS))
obj-y := $(addprefix $(obj)/,$(obj-y))
obj-m := $(addprefix $(obj)/,$(obj-m))
export-objs := $(addprefix $(obj)/,$(export-objs))
subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
multi-used-y := $(addprefix $(obj)/,$(multi-used-y))
multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
# The temporary file to save gcc -MD generated dependencies must not
# contain a comma
depfile = $(subst $(comma),_,$(@D)/.$(@F).d)
......@@ -136,15 +153,15 @@ ifeq ($(strip $(export-objs)),)
# If we don't export any symbols in this dir, just descend
# ---------------------------------------------------------------------------
fastdep: sub_dirs
@echo -n
fastdep: $(subdir-ym)
@/bin/true
else
# This sets version suffixes on exported symbols
# ---------------------------------------------------------------------------
MODVERDIR := $(TOPDIR)/include/linux/modules/$(RELDIR)
MODVERDIR := include/linux/modules/
#
# Added the SMP separator to stop module accidents between uniprocessor
......@@ -159,7 +176,7 @@ endif
# Don't include modversions.h, we're just about to generate it here.
CFLAGS_MODULE := $(filter-out -include $(HPATH)/linux/modversions.h,$(CFLAGS_MODULE))
CFLAGS_MODULE := $(filter-out -include linux/modversions.h,$(CFLAGS_MODULE))
$(addprefix $(MODVERDIR)/,$(real-objs-y:.o=.ver)): modkern_cflags := $(CFLAGS_KERNEL)
$(addprefix $(MODVERDIR)/,$(real-objs-m:.o=.ver)): modkern_cflags := $(CFLAGS_MODULE)
......@@ -174,7 +191,7 @@ c_flags = -Wp,-MD,$(depfile) $(CFLAGS) $(NOSTDINC_FLAGS) \
# files (fix-dep filters them), so touch modversions.h if any of the .ver
# files changes
quiet_cmd_cc_ver_c = MKVER include/linux/modules/$(RELDIR)/$*.ver
quiet_cmd_cc_ver_c = MKVER include/linux/modules/$*.ver
cmd_cc_ver_c = $(CPP) $(c_flags) $< | $(GENKSYMS) $(genksyms_smp_prefix) \
-k $(VERSION).$(PATCHLEVEL).$(SUBLEVEL) > $@.tmp
......@@ -206,9 +223,9 @@ $(MODVERDIR)/%.ver: %.c FORCE
targets := $(addprefix $(MODVERDIR)/,$(export-objs:.o=.ver))
fastdep: $(targets) sub_dirs
@mkdir -p $(TOPDIR)/.tmp_export-objs/modules/$(RELDIR)
@touch $(addprefix $(TOPDIR)/.tmp_export-objs/modules/$(RELDIR)/,$(export-objs:.o=.ver))
fastdep: $(targets) $(subdir-ym)
@mkdir -p $(dir $(addprefix .tmp_export-objs/modules/,$(export-objs:.o=.ver)))
@touch $(addprefix .tmp_export-objs/modules/,$(export-objs:.o=.ver))
endif # export-objs
......@@ -219,15 +236,17 @@ ifeq ($(MAKECMDGOALS),modules_install)
# Installing modules
# ==========================================================================
quiet_cmd_modules_install = INSTALL $(obj-m)
cmd_modules_install = mkdir -p $(MODLIB)/kernel/$(obj); \
cp $(obj-m) $(MODLIB)/kernel/$(obj)
.PHONY: modules_install
modules_install: sub_dirs
modules_install: $(subdir-ym)
ifneq ($(obj-m),)
@echo Installing modules in $(MODLIB)/kernel/$(RELDIR)
@mkdir -p $(MODLIB)/kernel/$(RELDIR)
@cp $(obj-m) $(MODLIB)/kernel/$(RELDIR)
$(call cmd,modules_install)
else
@echo -n
@/bin/true
endif
else # ! modules_install
......@@ -241,15 +260,18 @@ else # ! modules_install
ifndef O_TARGET
ifndef L_TARGET
O_TARGET := built-in.o
O_TARGET := $(obj)/built-in.o
endif
endif
# The echo suppresses the "Nothing to be done for first_rule"
ifdef L_TARGET
L_TARGET := $(obj)/$(L_TARGET)
endif
first_rule: $(if $(KBUILD_BUILTIN),$(O_TARGET) $(L_TARGET) $(EXTRA_TARGETS)) \
$(if $(KBUILD_MODULES),$(obj-m)) \
sub_dirs
@echo -n
$(subdir-ym)
@/bin/true
# Compile C sources (.c)
# ---------------------------------------------------------------------------
......@@ -324,7 +346,7 @@ targets += $(real-objs-y) $(real-objs-m) $(EXTRA_TARGETS) $(MAKECMDGOALS)
# ---------------------------------------------------------------------------
# To build objects in subdirs, we need to descend into the directories
$(sort $(subdir-obj-y)): sub_dirs ;
$(sort $(subdir-obj-y)): $(subdir-ym) ;
#
# Rule to compile a set of .o files into one .o file
......@@ -360,7 +382,7 @@ endif
#
quiet_cmd_link_multi = LD $(echo_target)
cmd_link_multi = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) -r -o $@ $(filter $($(basename $@)-objs),$^)
cmd_link_multi = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) -r -o $@ $(filter $(addprefix $(obj)/,$($(subst $(obj)/,,$(@:.o=-objs)))),$^)
# We would rather have a list of rules like
# foo.o: $(foo-objs)
......@@ -380,6 +402,10 @@ targets += $(multi-used-y) $(multi-used-m)
host-progs-single := $(foreach m,$(host-progs),$(if $($(m)-objs),,$(m)))
host-progs-multi := $(foreach m,$(host-progs),$(if $($(m)-objs),$(m)))
host-progs-multi-objs := $(foreach m,$(host-progs-multi),$($(m)-objs))
host-progs := $(addprefix $(obj)/,$(host-progs))
host-progs-single := $(addprefix $(obj)/,$(host-progs-single))
host-progs-multi := $(addprefix $(obj)/,$(host-progs-multi))
host-progs-multi-objs := $(addprefix $(obj)/,$(host-progs-multi-objs))
quiet_cmd_host_cc__c = HOSTCC $(echo_target)
cmd_host_cc__c = $(HOSTCC) -Wp,-MD,$(depfile) \
......@@ -397,7 +423,7 @@ $(host-progs-multi-objs): %.o: %.c FORCE
$(call if_changed_dep,host_cc_o_c)
quiet_cmd_host_cc__o = HOSTLD $(echo_target)
cmd_host_cc__o = $(HOSTCC) $(HOSTLDFLAGS) -o $@ $($@-objs) \
cmd_host_cc__o = $(HOSTCC) $(HOSTLDFLAGS) -o $@ $(addprefix $(obj)/,$($(subst $(obj)/,,$@)-objs)) \
$(HOST_LOADLIBES)
$(host-progs-multi): %: $(host-progs-multi-objs) FORCE
......@@ -432,7 +458,7 @@ cmd_shipped = cat $< > $@
# ---------------------------------------------------------------------------
quiet_cmd_ld = LD $(echo_target)
cmd_ld = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$@) \
cmd_ld = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) \
$(filter-out FORCE,$^) -o $@
# Objcopy
......@@ -454,12 +480,10 @@ cmd_gzip = gzip -f -9 < $< > $@
# Descending
# ---------------------------------------------------------------------------
.PHONY: sub_dirs $(subdir-ym)
sub_dirs: $(subdir-ym)
.PHONY: $(subdir-ym)
$(subdir-ym):
@$(MAKE) -C $@ $(MAKECMDGOALS)
+@$(call descend,$@,$(MAKECMDGOALS))
# Add FORCE to the prequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------
......@@ -574,3 +598,10 @@ define do_cmd
$(2)
endef
# $(call descend,<dir>,<target>)
# Recursively call a sub-make in <dir> with target <target>
ifeq ($(KBUILD_VERBOSE),1)
descend = echo '$(MAKE) -f $(1)/Makefile $(2)';
endif
descend += $(MAKE) -f $(1)/Makefile obj=$(1) $(2)
arch/alpha/Makefile
View file @ 7d155a9a
......@@ -95,6 +95,8 @@ core-y += arch/alpha/kernel/ arch/alpha/mm/
core-$(CONFIG_MATHEMU) += arch/alpha/math-emu/
libs-y += arch/alpha/lib/
export libs-y
MAKEBOOT = $(MAKE) -C arch/alpha/boot
rawboot:
......
arch/alpha/boot/Makefile
View file @ 7d155a9a
......@@ -20,7 +20,7 @@ BPOBJECTS = head.o bootp.o
TARGETS = vmlinux.gz tools/objstrip # also needed by aboot & milo
VMLINUX = $(TOPDIR)/vmlinux
OBJSTRIP = tools/objstrip
LIBS := $(patsubst lib/%,$(TOPDIR)/lib/%,$(LIBS))
LIBS := $(addprefix $(TOPDIR)/,$(libs-y))
all: $(TARGETS)
@echo Ready to install kernel in $(shell pwd)/vmlinux.gz
......
arch/i386/Config.help
View file @ 7d155a9a
......@@ -1058,3 +1058,12 @@ CONFIG_SOFTWARE_SUSPEND
absence of features.
For more information take a look at Documentation/swsusp.txt.
CONFIG_SCx200
This provides basic support for the National Semiconductor SCx200
processor. Right now this is just a driver for the GPIO pins.
If you don't know what to do here, say N.
This support is also available as a module. If compiled as a
module, it will be called scx200.o.
arch/i386/Makefile
View file @ 7d155a9a
......@@ -25,65 +25,23 @@ CFLAGS += -pipe
# prevent gcc from keeping the stack 16 byte aligned
CFLAGS += $(shell if $(CC) -mpreferred-stack-boundary=2 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-mpreferred-stack-boundary=2"; fi)
ifdef CONFIG_M386
CFLAGS += -march=i386
endif
ifdef CONFIG_M486
CFLAGS += -march=i486
endif
ifdef CONFIG_M586
CFLAGS += -march=i586
endif
ifdef CONFIG_M586TSC
CFLAGS += -march=i586
endif
ifdef CONFIG_M586MMX
CFLAGS += -march=i586
endif
ifdef CONFIG_M686
CFLAGS += -march=i686
endif
ifdef CONFIG_MPENTIUMIII
CFLAGS += -march=i686
endif
ifdef CONFIG_MPENTIUM4
CFLAGS += -march=i686
endif
ifdef CONFIG_MK6
CFLAGS += $(shell if $(CC) -march=k6 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=k6"; else echo "-march=i586"; fi)
endif
ifdef CONFIG_MK7
CFLAGS += $(shell if $(CC) -march=athlon -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=athlon"; else echo "-march=i686 -malign-functions=4"; fi)
endif
ifdef CONFIG_MCRUSOE
CFLAGS += -march=i686 -malign-functions=0 -malign-jumps=0 -malign-loops=0
endif
ifdef CONFIG_MWINCHIPC6
CFLAGS += -march=i586
endif
ifdef CONFIG_MWINCHIP2
CFLAGS += -march=i586
endif
ifdef CONFIG_MWINCHIP3D
CFLAGS += -march=i586
endif
ifdef CONFIG_MCYRIXIII
CFLAGS += -march=i586
endif
cflags-$(CONFIG_M386) += -march=i386
cflags-$(CONFIG_M486) += -march=i486
cflags-$(CONFIG_M586) += -march=i586
cflags-$(CONFIG_M586TSC) += -march=i586
cflags-$(CONFIG_M586MMX) += -march=i586
cflags-$(CONFIG_M686) += -march=i686
cflags-$(CONFIG_MPENTIUMIII) += -march=i686
cflags-$(CONFIG_MPENTIUM4) += -march=i686
cflags-$(CONFIG_MK6) += $(shell if $(CC) -march=k6 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=k6"; else echo "-march=i586"; fi)
cflags-$(CONFIG_MK7) += $(shell if $(CC) -march=athlon -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=athlon"; else echo "-march=i686 -malign-functions=4"; fi)
cflags-$(CONFIG_MCRUSOE) += -march=i686 -malign-functions=0 -malign-jumps=0 -malign-loops=0
cflags-$(CONFIG_MWINCHIPC6) += -march=i586
cflags-$(CONFIG_MWINCHIP2) += -march=i586
cflags-$(CONFIG_MWINCHIP3D) += -march=i586
cflags-$(CONFIG_MCYRIXIII) += -march=i586
CFLAGS += $(cflags-y)
ifdef CONFIG_VISWS
MACHINE := mach-visws
......@@ -94,47 +52,39 @@ endif
HEAD := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
libs-y += arch/i386/lib/
core-y += arch/i386/kernel/ arch/i386/mm/ arch/i386/$(MACHINE)/
core-y += arch/i386/kernel/ arch/i386/mm/ \
arch/i386/$(MACHINE)/
drivers-$(CONFIG_MATH_EMULATION) += arch/i386/math-emu/
drivers-$(CONFIG_PCI) += arch/i386/pci/
CFLAGS += -I$(TOPDIR)/arch/i386/$(MACHINE)
AFLAGS += -I$(TOPDIR)/arch/i386/$(MACHINE)
CFLAGS += -Iarch/i386/$(MACHINE)
AFLAGS += -Iarch/i386/$(MACHINE)
MAKEBOOT = +$(MAKE) -C arch/$(ARCH)/boot
makeboot = $(call descend,arch/i386/boot,$(1))
.PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
clean archclean archmrproper
all: bzImage
zImage: vmlinux
@$(MAKEBOOT) zImage
BOOTIMAGE=arch/i386/boot/bzImage
zImage zlilo zdisk: BOOTIMAGE=arch/i386/boot/zImage
bzImage: vmlinux
@$(MAKEBOOT) bzImage
zImage bzImage: vmlinux
+@$(call makeboot,$(BOOTIMAGE))
compressed: zImage
zlilo: vmlinux
@$(MAKEBOOT) BOOTIMAGE=zImage zlilo
tmp:
@$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
bzlilo: vmlinux
@$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
zdisk: vmlinux
@$(MAKEBOOT) BOOTIMAGE=zImage zdisk
zlilo bzlilo: vmlinux
+@$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) zlilo)
bzdisk: vmlinux
@$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
zdisk bzdisk: vmlinux
+@$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) zdisk)
install: vmlinux
@echo 'Cleaning up (arch)'
@$(MAKEBOOT) BOOTIMAGE=bzImage install
+@$(call makeboot,BOOTIMAGE=$(BOOTIMAGE) install)
archclean:
@$(MAKEBOOT) clean
+@$(call makeboot,clean)
archmrproper:
arch/i386/boot/Makefile
View file @ 7d155a9a
......@@ -25,7 +25,7 @@ SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
#RAMDISK := -DRAMDISK=512
EXTRA_TARGETS := vmlinux.bin bvmlinux.bin bootsect bootsect.o \
EXTRA_TARGETS := vmlinux.bin bootsect bootsect.o \
setup setup.o zImage bzImage
host-progs := tools/build
......@@ -38,30 +38,32 @@ include $(TOPDIR)/Rules.make
# ---------------------------------------------------------------------------
zImage: IMAGE_OFFSET := 0x1000
zImage: EXTRA_AFLAGS := -traditional $(SVGA_MODE) $(RAMDISK)
bzImage: IMAGE_OFFSET := 0x100000
bzImage: EXTRA_AFLAGS := -traditional $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
bzImage: BUILDFLAGS := -b
$(obj)/zImage: IMAGE_OFFSET := 0x1000
$(obj)/zImage: EXTRA_AFLAGS := -traditional $(SVGA_MODE) $(RAMDISK)
$(obj)/bzImage: IMAGE_OFFSET := 0x100000
$(obj)/bzImage: EXTRA_AFLAGS := -traditional $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
$(obj)/bzImage: BUILDFLAGS := -b
quiet_cmd_image = BUILD $(RELDIR)/$@
cmd_image = tools/build $(BUILDFLAGS) bootsect setup vmlinux.bin \
$(ROOT_DEV) > $@
quiet_cmd_image = BUILD $(echo_target)
cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/bootsect $(obj)/setup \
$(obj)/vmlinux.bin $(ROOT_DEV) > $@
zImage bzImage: bootsect setup vmlinux.bin tools/build FORCE
$(obj)/zImage $(obj)/bzImage: $(obj)/bootsect $(obj)/setup \
$(obj)/vmlinux.bin $(obj)/tools/build FORCE
$(call if_changed,image)
vmlinux.bin: compressed/vmlinux FORCE
$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)
LDFLAGS_bootsect := -Ttext 0x0 -s --oformat binary
LDFLAGS_setup := -Ttext 0x0 -s --oformat binary -e begtext
setup bootsect: %: %.o FORCE
$(obj)/setup $(obj)/bootsect: %: %.o FORCE
$(call if_changed,ld)
compressed/vmlinux: FORCE
@$(MAKE) IMAGE_OFFSET=$(IMAGE_OFFSET) -C compressed vmlinux
$(obj)/compressed/vmlinux: FORCE
+@$(call descend,$(obj)/compressed,IMAGE_OFFSET=$(IMAGE_OFFSET) \
$(obj)/compressed/vmlinux)
zdisk: $(BOOTIMAGE)
......@@ -71,18 +73,16 @@ zlilo: $(BOOTIMAGE)
if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
cp $(TOPDIR)/System.map $(INSTALL_PATH)/
cp System.map $(INSTALL_PATH)/
if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
install: $(BOOTIMAGE)
sh -x ./install.sh $(KERNELRELEASE) $(BOOTIMAGE) $(TOPDIR)/System.map "$(INSTALL_PATH)"
sh $(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
clean:
@echo 'Cleaning up (boot)'
@rm -f tools/build vmlinux.bin bvmlinux.bin
@rm -f setup bootsect zImage compressed/vmlinux.out
@rm -f bsetup bbootsect bzImage compressed/bvmlinux.out
@$(MAKE) -C compressed clean
@rm -f $(host-progs) $(EXTRA_TARGETS)
+@$(call descend,$(obj)/compressed) clean
archhelp:
@echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
......
arch/i386/boot/compressed/Makefile
View file @ 7d155a9a
......@@ -11,19 +11,20 @@ include $(TOPDIR)/Rules.make
LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup_32
vmlinux: head.o misc.o piggy.o FORCE
$(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE
$(call if_changed,ld)
vmlinux.bin: $(TOPDIR)/vmlinux FORCE
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
vmlinux.bin.gz: vmlinux.bin FORCE
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
$(call if_changed,gzip)
LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T
piggy.o: vmlinux.scr vmlinux.bin.gz FORCE
$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
$(call if_changed,ld)
clean:
@rm -f vmlinux vmlinux.bin vmlinux.bin.gz
@echo 'Cleaning up (boot/compressed)'
@rm -f $(EXTRA_TARGETS)
arch/i386/config.in
View file @ 7d155a9a
......@@ -293,6 +293,8 @@ else
fi
fi
tristate 'NatSemi SCx200 support' CONFIG_SCx200
source drivers/pci/Config.in
bool 'EISA support' CONFIG_EISA
......
arch/i386/kernel/Makefile
View file @ 7d155a9a
......@@ -29,4 +29,7 @@ obj-$(CONFIG_X86_NUMAQ) += numaq.o
EXTRA_AFLAGS := -traditional
export-objs += scx200.o
obj-$(CONFIG_SCx200) += scx200.o
include $(TOPDIR)/Rules.make
arch/i386/kernel/cpu/cpufreq/longhaul.c
View file @ 7d155a9a
......@@ -26,6 +26,7 @@
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <asm/msr.h>
#include <asm/timex.h>
......
arch/i386/kernel/i386_ksyms.c
View file @ 7d155a9a
......@@ -33,6 +33,9 @@
extern void dump_thread(struct pt_regs *, struct user *);
extern spinlock_t rtc_lock;
/* This is definitely a GPL-only symbol */
EXPORT_SYMBOL_GPL(cpu_gdt_table);
#if defined(CONFIG_APM_MODULE)
extern void machine_real_restart(unsigned char *, int);
EXPORT_SYMBOL(machine_real_restart);
......
arch/i386/kernel/scx200.c 0 → 100644
View file @ 7d155a9a
/* linux/arch/i386/kernel/scx200.c
Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
National Semiconductor SCx200 support. */
#include <linux/config.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/scx200.h>
#include <linux/scx200.h>
#define NAME "scx200"
MODULE_AUTHOR("Christer Weinigel <wingel@nano-system.com>");
MODULE_DESCRIPTION("NatSemi SCx200 Driver");
MODULE_LICENSE("GPL");
unsigned scx200_gpio_base = 0;
long scx200_gpio_shadow[2];
spinlock_t scx200_gpio_lock = SPIN_LOCK_UNLOCKED;
static spinlock_t scx200_gpio_config_lock = SPIN_LOCK_UNLOCKED;
u32 scx200_gpio_configure(int index, u32 mask, u32 bits)
{
u32 config, new_config;
unsigned long flags;
spin_lock_irqsave(&scx200_gpio_config_lock, flags);
outl(index, scx200_gpio_base + 0x20);
config = inl(scx200_gpio_base + 0x24);
new_config = (config & mask) | bits;
outl(new_config, scx200_gpio_base + 0x24);
spin_unlock_irqrestore(&scx200_gpio_config_lock, flags);
return config;
}
void scx200_gpio_dump(unsigned index)
{
u32 config = scx200_gpio_configure(index, ~0, 0);
printk(KERN_DEBUG "GPIO%02u: 0x%08lx", index, (unsigned long)config);
if (config & 1)
printk(" OE"); /* output enabled */
else
printk(" TS"); /* tristate */
if (config & 2)
printk(" PP"); /* push pull */
else
printk(" OD"); /* open drain */
if (config & 4)
printk(" PUE"); /* pull up enabled */
else
printk(" PUD"); /* pull up disabled */
if (config & 8)
printk(" LOCKED"); /* locked */
if (config & 16)
printk(" LEVEL"); /* level input */
else
printk(" EDGE"); /* edge input */
if (config & 32)
printk(" HI"); /* trigger on rising edge */
else
printk(" LO"); /* trigger on falling edge */
if (config & 64)
printk(" DEBOUNCE"); /* debounce */
printk("\n");
}
int __init scx200_init(void)
{
struct pci_dev *bridge;
int bank;
unsigned base;
printk(KERN_INFO NAME ": NatSemi SCx200 Driver\n");
if ((bridge = pci_find_device(PCI_VENDOR_ID_NS,
PCI_DEVICE_ID_NS_SCx200_BRIDGE,
NULL)) == NULL)
return -ENODEV;
base = pci_resource_start(bridge, 0);
printk(KERN_INFO NAME ": GPIO base 0x%x\n", base);
if (request_region(base, SCx200_GPIO_SIZE, "NatSemi SCx200 GPIO") == 0) {
printk(KERN_ERR NAME ": can't allocate I/O for GPIOs\n");
return -EBUSY;
}
scx200_gpio_base = base;
/* read the current values driven on the GPIO signals */
for (bank = 0; bank < 2; ++bank)
scx200_gpio_shadow[bank] = inl(scx200_gpio_base + 0x10 * bank);
return 0;
}
void __exit scx200_cleanup(void)
{
release_region(scx200_gpio_base, SCx200_GPIO_SIZE);
}
module_init(scx200_init);
module_exit(scx200_cleanup);
EXPORT_SYMBOL(scx200_gpio_base);
EXPORT_SYMBOL(scx200_gpio_shadow);
EXPORT_SYMBOL(scx200_gpio_lock);
EXPORT_SYMBOL(scx200_gpio_configure);
EXPORT_SYMBOL(scx200_gpio_dump);
/*
Local variables:
compile-command: "make -k -C ../../.. SUBDIRS=arch/i386/kernel modules"
c-basic-offset: 8
End:
*/
arch/i386/mm/hugetlbpage.c
View file @ 7d155a9a
......@@ -44,24 +44,22 @@ find_key_inode(int key)
static struct page *
alloc_hugetlb_page(void)
{
struct list_head *curr, *head;
int i;
struct page *page;
spin_lock(&htlbpage_lock);
head = &htlbpage_freelist;
curr = head->next;
if (curr == head) {
if (list_empty(&htlbpage_freelist)) {
spin_unlock(&htlbpage_lock);
return NULL;
}
page = list_entry(curr, struct page, list);
list_del(curr);
page = list_entry(htlbpage_freelist.next, struct page, list);
list_del(&page->list);
htlbpagemem--;
spin_unlock(&htlbpage_lock);
set_page_count(page, 1);
memset(page_address(page), 0, HPAGE_SIZE);
for (i = 0; i < (HPAGE_SIZE/PAGE_SIZE); ++i)
clear_highpage(&page[i]);
return page;
}
......
arch/i386/vmlinux.lds.S
View file @ 7d155a9a
......@@ -77,14 +77,14 @@ SECTIONS
. = ALIGN(32);
.data.cacheline_aligned : { *(.data.cacheline_aligned) }
__bss_start = .; /* BSS */
.bss : { *(.bss) }
__bss_stop = .;
__start___kallsyms = .; /* All kernel symbols */
__kallsyms : { *(__kallsyms) }
__stop___kallsyms = .;
__bss_start = .; /* BSS */
.bss : { *(.bss) }
__bss_stop = .;
_end = . ;
/* Sections to be discarded */
......
arch/m68k/atari/stram.c
View file @ 7d155a9a
......@@ -1046,13 +1046,7 @@ static struct block_device_operations stram_fops = {
.release = stram_release,
};
static struct gendisk stram_disk = {
.major = STRAM_MAJOR,
.first_minor = STRAM_MINOR,
.minor_shift = 0,
.fops = &stram_fops,
.disk_name = "stram"
};
static struct gendisk *stram_disk;
int __init stram_device_init(void)
{
......@@ -1063,15 +1057,24 @@ int __init stram_device_init(void)
if (!max_swap_size)
/* swapping not enabled */
return -ENXIO;
stram_disk = alloc_disk();
if (!stram_disk)
return -ENOMEM;
if (register_blkdev( STRAM_MAJOR, "stram", &stram_fops)) {
printk(KERN_ERR "stram: Unable to get major %d\n", STRAM_MAJOR);
put_disk(stram_disk);
return -ENXIO;
}
blk_init_queue(BLK_DEFAULT_QUEUE(STRAM_MAJOR), do_stram_request);
set_capacity(&stram_disk, (swap_end - swap_start)/512);
add_disk(&stram_disk);
stram_disk->major = STRAM_MAJOR;
stram_disk->first_minor = STRAM_MINOR;
stram_disk->minor_shift = 0;
stram_disk->fops = &stram_fops;
sprintf(stram_disk->disk_name, "stram");
set_capacity(stram_disk, (swap_end - swap_start)/512);
add_disk(stram_disk);
return 0;
}
......
arch/s390/Config.help
View file @ 7d155a9a
......@@ -160,25 +160,11 @@ CONFIG_IPL_TAPE
Select "vm_reader" if you are running under VM/ESA and want
to IPL the image from the emulated card reader.
CONFIG_FAST_IRQ
Select this option in order to get the interrupts processed faster
on your S/390 or zSeries machine. If selected, after an interrupt
is processed, the channel subsystem will be asked for other pending
interrupts which will also be processed before leaving the interrupt
context. This speeds up the I/O a lot. Say "Y".
CONFIG_MACHCHK_WARNING
Select this option if you want the machine check handler on IBM S/390 or
zSeries to process warning machine checks (e.g. on power failures).
If unsure, say "Y".
CONFIG_CHSC
Select this option if you want the s390 common I/O layer to use information
obtained by channel subsystem calls. This will enable Linux to process link
failures and resource accessibility events. Moreover, if you have procfs
enabled, you'll be able to toggle chpids logically offline and online. Even
if you don't understand what this means, you should say "Y".
CONFIG_PROCESS_DEBUG
Say Y to print all process fault locations to the console. This is
a debugging option; you probably do not want to set it unless you
......
arch/s390/config.in
View file @ 7d155a9a
......@@ -17,22 +17,20 @@ define_bool CONFIG_ARCH_S390 y
source init/Config.in
mainmenu_option next_comment
comment 'Base setup'
comment 'Processor type and features'
bool 'Symmetric multi-processing support' CONFIG_SMP
bool 'IEEE FPU emulation' CONFIG_MATHEMU
endmenu
mainmenu_option next_comment
comment 'Base setup'
bool 'Fast IRQ handling' CONFIG_FAST_IRQ
comment 'I/O subsystem configuration'
bool 'Process warning machine checks' CONFIG_MACHCHK_WARNING
bool 'Use chscs for Common I/O' CONFIG_CHSC
tristate 'QDIO support' CONFIG_QDIO
if [ "$CONFIG_QDIO" != "n" ]; then
bool ' Performance statistics in /proc' CONFIG_QDIO_PERF_STATS
fi
if [ "$CONFIG_QDIO" != "n" ]; then
bool ' Performance statistics in /proc' CONFIG_QDIO_PERF_STATS
fi
comment 'Misc'
bool 'Preemptible Kernel' CONFIG_PREEMPT
bool 'Builtin IPL record support' CONFIG_IPL
if [ "$CONFIG_IPL" = "y" ]; then
choice 'IPL method generated into head.S' \
......@@ -68,7 +66,6 @@ source fs/Config.in
mainmenu_option next_comment
comment 'Kernel hacking'
#bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC
#if [ "$CONFIG_CTC" = "y" ]; then
# bool 'Remote GDB kernel debugging' CONFIG_REMOTE_DEBUG
#fi
......
arch/s390/defconfig
View file @ 7d155a9a
......@@ -30,6 +30,10 @@ CONFIG_MODULES=y
# CONFIG_MODVERSIONS is not set
CONFIG_KMOD=y
#
# Base setup
#
#
# Processor type and features
#
......@@ -37,13 +41,16 @@ CONFIG_SMP=y
CONFIG_MATHEMU=y
#
# Base setup
# I/O subsystem configuration
#
CONFIG_FAST_IRQ=y
CONFIG_MACHCHK_WARNING=y
CONFIG_CHSC=y
CONFIG_QDIO=m
# CONFIG_QDIO_PERF_STATS is not set
#
# Misc
#
# CONFIG_PREEMPT is not set
CONFIG_IPL=y
# CONFIG_IPL_TAPE is not set
CONFIG_IPL_VM=y
......@@ -84,9 +91,6 @@ CONFIG_SCSI_LOGGING=y
#
# CONFIG_SCSI_7000FASST is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AHA152X is not set
# CONFIG_SCSI_AHA1542 is not set
# CONFIG_SCSI_AHA1740 is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_DPT_I2O is not set
......@@ -114,7 +118,6 @@ CONFIG_SCSI_LOGGING=y
# CONFIG_SCSI_PCI2220I is not set
# CONFIG_SCSI_PSI240I is not set
# CONFIG_SCSI_QLOGIC_FAS is not set
# CONFIG_SCSI_SIM710 is not set
# CONFIG_SCSI_SYM53C416 is not set
# CONFIG_SCSI_T128 is not set
# CONFIG_SCSI_U14_34F is not set
......@@ -153,7 +156,7 @@ CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID5=m
# CONFIG_MD_MULTIPATH is not set
CONFIG_BLK_DEV_LVM=m
# CONFIG_BLK_DEV_LVM is not set
#
# Character device drivers
......@@ -226,25 +229,22 @@ CONFIG_IP_MULTICAST=y
# CONFIG_INET_ECN is not set
# CONFIG_SYN_COOKIES is not set
CONFIG_IPV6=m
# CONFIG_KHTTPD is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
#
#
# SCTP Configuration (EXPERIMENTAL)
#
CONFIG_IPV6_SCTP__=m
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_LLC is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
#
# Appletalk devices
#
# CONFIG_DEV_APPLETALK is not set
# CONFIG_DECNET is not set
# CONFIG_BRIDGE is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_LLC is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
......@@ -299,7 +299,7 @@ CONFIG_RAMFS=y
# CONFIG_HPFS_FS is not set
CONFIG_PROC_FS=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS is not set
# CONFIG_QNX4FS_FS is not set
......@@ -311,6 +311,9 @@ CONFIG_EXT2_FS=y
# CONFIG_UDF_RW is not set
# CONFIG_UFS_FS is not set
# CONFIG_UFS_FS_WRITE is not set
# CONFIG_XFS_FS is not set
# CONFIG_XFS_RT is not set
# CONFIG_XFS_QUOTA is not set
#
# Network File Systems
......@@ -362,6 +365,11 @@ CONFIG_IBM_PARTITION=y
#
CONFIG_MAGIC_SYSRQ=y
#
# Security options
#
CONFIG_SECURITY_CAPABILITIES=y
#
# Library routines
#
......
arch/s390/kernel/Makefile
View file @ 7d155a9a
......@@ -5,10 +5,10 @@
EXTRA_TARGETS := head.o init_task.o
EXTRA_AFLAGS := -traditional
export-objs := debug.o ebcdic.o irq.o s390_ext.o smp.o s390_ksyms.o
obj-y := entry.o bitmap.o traps.o time.o process.o irq.o \
export-objs := debug.o ebcdic.o s390_ext.o smp.o s390_ksyms.o
obj-y := entry.o bitmap.o traps.o time.o process.o \
setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
semaphore.o s390fpu.o reipl.o s390_ext.o debug.o
semaphore.o reipl.o s390_ext.o debug.o
obj-$(CONFIG_MODULES) += s390_ksyms.o
obj-$(CONFIG_SMP) += smp.o
......
arch/s390/kernel/debug.c
View file @ 7d155a9a
......@@ -21,6 +21,7 @@
#include <asm/semaphore.h>
#include <linux/module.h>
#include <linux/init.h>
#include <asm/debug.h>
......@@ -146,7 +147,7 @@ static debug_info_t *debug_area_first = NULL;
static debug_info_t *debug_area_last = NULL;
DECLARE_MUTEX(debug_lock);
static int initialized = 0;
static int initialized;
static struct file_operations debug_file_ops = {
read: debug_output,
......@@ -591,7 +592,7 @@ debug_info_t *debug_register
MOD_INC_USE_COUNT;
if (!initialized)
debug_init();
BUG();
down(&debug_lock);
/* create new debug_info */
......@@ -828,18 +829,16 @@ debug_entry_t *debug_sprintf_exception(debug_info_t* id,
* - is called exactly once to initialize the debug feature
*/
int debug_init(void)
static int __init debug_init(void)
{
int rc = 0;
down(&debug_lock);
if (!initialized) {
#ifdef CONFIG_PROC_FS
debug_proc_root_entry = proc_mkdir(DEBUG_DIR_ROOT, NULL);
debug_proc_root_entry = proc_mkdir(DEBUG_DIR_ROOT, NULL);
#endif /* CONFIG_PROC_FS */
printk(KERN_INFO "debug: Initialization complete\n");
initialized = 1;
}
printk(KERN_INFO "debug: Initialization complete\n");
initialized = 1;
up(&debug_lock);
return rc;
......@@ -1173,27 +1172,9 @@ int debug_sprintf_format_fn(debug_info_t * id, struct debug_view *view,
}
/*
* init_module:
*/
#ifdef MODULE
int init_module(void)
{
int rc = 0;
#ifdef DEBUG
printk("debug_module_init: \n");
#endif
rc = debug_init();
if (rc)
printk(KERN_INFO "debug: an error occurred with debug_init\n");
return rc;
}
/*
* cleanup_module:
* clean up module
*/
void cleanup_module(void)
void __exit debug_exit(void)
{
#ifdef DEBUG
printk("debug_cleanup_module: \n");
......@@ -1204,7 +1185,12 @@ void cleanup_module(void)
return;
}
#endif /* MODULE */
/*
* module definitions
*/
core_initcall(debug_init);
module_exit(debug_exit);
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(debug_register);
EXPORT_SYMBOL(debug_unregister);
......
arch/s390/kernel/entry.S
View file @ 7d155a9a
This diff is collapsed.
arch/s390/kernel/head.S
View file @ 7d155a9a
......@@ -653,5 +653,5 @@ _stext: basr %r13,0 # get base
.Lstart: .long start_kernel
.Lbss_bgn: .long __bss_start
.Lbss_end: .long _end
.Laregs: .long 0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0
.Laregs: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
arch/s390/kernel/init_task.c
View file @ 7d155a9a
......@@ -15,7 +15,7 @@
static struct fs_struct init_fs = INIT_FS;
static struct files_struct init_files = INIT_FILES;
static struct signal_struct init_signals = INIT_SIGNALS;
static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
struct mm_struct init_mm = INIT_MM(init_mm);
/*
......
arch/s390/kernel/irq.c deleted 100644 → 0
View file @ 7b874823
/*
* arch/s390/kernel/irq.c
*
* S390 version
* Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Ingo Adlung (adlung@de.ibm.com)
*
* Derived from "arch/i386/kernel/irq.c"
* Copyright (C) 1992, 1999 Linus Torvalds, Ingo Molnar
*
* S/390 I/O interrupt processing and I/O request processing is
* implemented in arch/s390/kernel/s390io.c
*/
#include <linux/module.h>
#include <linux/config.h>
#include <linux/ptrace.h>
#include <linux/errno.h>
#include <linux/kernel_stat.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/random.h>
#include <linux/smp.h>
#include <linux/threads.h>
#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/seq_file.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/bitops.h>
#include <asm/smp.h>
#include <asm/pgtable.h>
#include <asm/delay.h>
#include <asm/lowcore.h>
void s390_init_IRQ ( void );
void s390_free_irq ( unsigned int irq, void *dev_id);
int s390_request_irq( unsigned int irq,
void (*handler)(int, void *, struct pt_regs *),
unsigned long irqflags,
const char *devname,
void *dev_id);
#if 0
/*
* The following vectors are part of the Linux architecture, there
* is no hardware IRQ pin equivalent for them, they are triggered
* through the ICC by us (IPIs), via smp_message_pass():
*/
BUILD_SMP_INTERRUPT(reschedule_interrupt)
BUILD_SMP_INTERRUPT(invalidate_interrupt)
BUILD_SMP_INTERRUPT(stop_cpu_interrupt)
BUILD_SMP_INTERRUPT(mtrr_interrupt)
BUILD_SMP_INTERRUPT(spurious_interrupt)
#endif
int show_interrupts(struct seq_file *p, void *v)
{
int i, j;
seq_puts(p, " ");
for (j=0; j<smp_num_cpus; j++)
seq_printf(p, "CPU%d ",j);
seq_putc(p, '\n');
for (i = 0 ; i < NR_IRQS ; i++) {
if (ioinfo[i] == INVALID_STORAGE_AREA)
continue;
seq_printf(p, "%3d: ",i);
seq_printf(p, " %s", ioinfo[i]->irq_desc.name);
seq_putc(p, '\n');
} /* endfor */
return 0;
}
/*
* Global interrupt locks for SMP. Allow interrupts to come in on any
* CPU, yet make cli/sti act globally to protect critical regions..
*/
#ifdef CONFIG_SMP
atomic_t global_irq_holder = ATOMIC_INIT(NO_PROC_ID);
atomic_t global_irq_lock = ATOMIC_INIT(0);
atomic_t global_irq_count = ATOMIC_INIT(0);
atomic_t global_bh_count;
/*
* "global_cli()" is a special case, in that it can hold the
* interrupts disabled for a longish time, and also because
* we may be doing TLB invalidates when holding the global
* IRQ lock for historical reasons. Thus we may need to check
* SMP invalidate events specially by hand here (but not in
* any normal spinlocks)
*
* Thankfully we don't need this as we can deliver flush tlbs with
* interrupts disabled DJB :-)
*/
#define check_smp_invalidate(cpu)
extern void show_stack(unsigned long* esp);
static void show(char * str)
{
int cpu = smp_processor_id();
printk("\n%s, CPU %d:\n", str, cpu);
printk("irq: %d [%d]\n",
atomic_read(&global_irq_count),local_irq_count(smp_processor_id()));
printk("bh: %d [%d]\n",
atomic_read(&global_bh_count),local_bh_count(smp_processor_id()));
show_stack(NULL);
}
#define MAXCOUNT 100000000
static inline void wait_on_bh(void)
{
int count = MAXCOUNT;
do {
if (!--count) {
show("wait_on_bh");
count = ~0;
}
/* nothing .. wait for the other bh's to go away */
} while (atomic_read(&global_bh_count) != 0);
}
static inline void wait_on_irq(int cpu)
{
int count = MAXCOUNT;
for (;;) {
/*
* Wait until all interrupts are gone. Wait
* for bottom half handlers unless we're
* already executing in one..
*/
if (!atomic_read(&global_irq_count)) {
if (local_bh_count(cpu)||
!atomic_read(&global_bh_count))
break;
}
/* Duh, we have to loop. Release the lock to avoid deadlocks */
atomic_set(&global_irq_lock, 0);
for (;;) {
if (!--count) {
show("wait_on_irq");
count = ~0;
}
local_irq_enable();
SYNC_OTHER_CORES(cpu);
local_irq_disable();
check_smp_invalidate(cpu);
if (atomic_read(&global_irq_count))
continue;
if (atomic_read(&global_irq_lock))
continue;
if (!local_bh_count(cpu)
&& atomic_read(&global_bh_count))
continue;
if (!atomic_compare_and_swap(0, 1, &global_irq_lock))
break;
}
}
}
/*
* This is called when we want to synchronize with
* bottom half handlers. We need to wait until
* no other CPU is executing any bottom half handler.
*
* Don't wait if we're already running in an interrupt
* context or are inside a bh handler.
*/
void synchronize_bh(void)
{
if (atomic_read(&global_bh_count) && !in_interrupt())
wait_on_bh();
}
/*
* This is called when we want to synchronize with
* interrupts. We may for example tell a device to
* stop sending interrupts: but to make sure there
* are no interrupts that are executing on another
* CPU we need to call this function.
*/
void synchronize_irq(void)
{
if (atomic_read(&global_irq_count)) {
/* Stupid approach */
cli();
sti();
}
}
static inline void get_irqlock(int cpu)
{
if (atomic_compare_and_swap(0, 1, &global_irq_lock) != 0) {
/* do we already hold the lock? */
if ( cpu == atomic_read(&global_irq_holder))
return;
/* Uhhuh.. Somebody else got it. Wait.. */
do {
check_smp_invalidate(cpu);
} while (atomic_compare_and_swap(0, 1, &global_irq_lock) != 0);
}
/*
* We also to make sure that nobody else is running
* in an interrupt context.
*/
wait_on_irq(cpu);
/*
* Ok, finally..
*/
atomic_set(&global_irq_holder,cpu);
}
#define EFLAGS_I_SHIFT 25
/*
* A global "cli()" while in an interrupt context
* turns into just a local cli(). Interrupts
* should use spinlocks for the (very unlikely)
* case that they ever want to protect against
* each other.
*
* If we already have local interrupts disabled,
* this will not turn a local disable into a
* global one (problems with spinlocks: this makes
* save_flags+cli+sti usable inside a spinlock).
*/
void __global_cli(void)
{
unsigned long flags;
local_save_flags(flags);
if (flags & (1 << EFLAGS_I_SHIFT)) {
int cpu = smp_processor_id();
local_irq_disable();
if (!in_irq())
get_irqlock(cpu);
}
}
void __global_sti(void)
{
if (!in_irq())
release_irqlock(smp_processor_id());
local_irq_enable();
}
/*
* SMP flags value to restore to:
* 0 - global cli
* 1 - global sti
* 2 - local cli
* 3 - local sti
*/
unsigned long __global_save_flags(void)
{
int retval;
int local_enabled;
unsigned long flags;
local_save_flags(flags);
local_enabled = (flags >> EFLAGS_I_SHIFT) & 1;
/* default to local */
retval = 2 + local_enabled;
/* check for global flags if we're not in an interrupt */
if (!in_irq())
{
if (local_enabled)
retval = 1;
if (atomic_read(&global_irq_holder)== smp_processor_id())
retval = 0;
}
return retval;
}
void __global_restore_flags(unsigned long flags)
{
switch (flags) {
case 0:
__global_cli();
break;
case 1:
__global_sti();
break;
case 2:
local_irq_disable();
break;
case 3:
local_irq_enable();
break;
default:
printk("global_restore_flags: %08lx (%08lx)\n",
flags, (&flags)[-1]);
}
}
#endif
void __init init_IRQ(void)
{
s390_init_IRQ();
}
void free_irq(unsigned int irq, void *dev_id)
{
s390_free_irq( irq, dev_id);
}
int request_irq( unsigned int irq,
void (*handler)(int, void *, struct pt_regs *),
unsigned long irqflags,
const char *devname,
void *dev_id)
{
return( s390_request_irq( irq, handler, irqflags, devname, dev_id ) );
}
void init_irq_proc(void)
{
/* For now, nothing... */
}
#ifdef CONFIG_SMP
EXPORT_SYMBOL(__global_cli);
EXPORT_SYMBOL(__global_sti);
EXPORT_SYMBOL(__global_save_flags);
EXPORT_SYMBOL(__global_restore_flags);
EXPORT_SYMBOL(global_irq_holder);
EXPORT_SYMBOL(global_irq_lock);
EXPORT_SYMBOL(global_irq_count);
EXPORT_SYMBOL(global_bh_count);
#endif
EXPORT_SYMBOL(global_bh_lock);
arch/s390/kernel/process.c
View file @ 7d155a9a
......@@ -15,9 +15,6 @@
* This file handles the architecture-dependent parts of process handling..
*/
#define __KERNEL_SYSCALLS__
#include <stdarg.h>
#include <linux/config.h>
#include <linux/errno.h>
#include <linux/sched.h>
......@@ -78,9 +75,10 @@ void default_idle(void)
/*
* Wait for external, I/O or machine check interrupt and
* switch of machine check bit after the wait has ended.
* switch off machine check bit after the wait has ended.
*/
wait_psw.mask = _WAIT_PSW_MASK;
wait_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK | PSW_MASK_WAIT |
PSW_MASK_IO | PSW_MASK_EXT;
asm volatile (
" basr %0,0\n"
"0: la %0,1f-0b(%0)\n"
......@@ -117,35 +115,39 @@ void show_regs(struct pt_regs *regs)
show_registers(regs);
/* Show stack backtrace if pt_regs is from kernel mode */
if (!(regs->psw.mask & PSW_PROBLEM_STATE))
if (!(regs->psw.mask & PSW_MASK_PSTATE))
show_trace((unsigned long *) regs->gprs[15]);
}
extern void kernel_thread_starter(void);
__asm__(".align 4\n"
"kernel_thread_starter:\n"
" l 15,0(8)\n"
" sr 15,7\n"
" stosm 24(15),3\n"
" lr 2,10\n"
" basr 14,9\n"
" sr 2,2\n"
" br 11\n");
int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
{
int clone_arg = flags | CLONE_VM;
int retval;
__asm__ __volatile__(
" sr 2,2\n"
" lr 3,%1\n"
" l 4,%6\n" /* load kernel stack ptr of parent */
" svc %b2\n" /* Linux system call*/
" cl 4,%6\n" /* compare ksp's: child or parent ? */
" je 0f\n" /* parent - jump*/
" l 15,%6\n" /* fix kernel stack pointer*/
" ahi 15,%7\n"
" xc 0(96,15),0(15)\n" /* clear save area */
" lr 2,%4\n" /* load argument*/
" lr 14,%5\n" /* get fn-pointer*/
" basr 14,14\n" /* call fn*/
" svc %b3\n" /* Linux system call*/
"0: lr %0,2"
: "=a" (retval)
: "d" (clone_arg), "i" (__NR_clone), "i" (__NR_exit),
"d" (arg), "d" (fn), "i" (__LC_KERNEL_STACK) , "i" (-STACK_FRAME_OVERHEAD)
: "2", "3", "4" );
return retval;
struct task_struct *p;
struct pt_regs regs;
memset(&regs, 0, sizeof(regs));
regs.psw.mask = PSW_KERNEL_BITS;
regs.psw.addr = (__u32) kernel_thread_starter | PSW_ADDR_AMODE31;
regs.gprs[7] = STACK_FRAME_OVERHEAD;
regs.gprs[8] = __LC_KERNEL_STACK;
regs.gprs[9] = (unsigned long) fn;
regs.gprs[10] = (unsigned long) arg;
regs.gprs[11] = (unsigned long) do_exit;
regs.orig_gpr2 = -1;
/* Ok, create the new process.. */
p = do_fork(flags | CLONE_VM, 0, &regs, 0, NULL);
return IS_ERR(p) ? PTR_ERR(p) : p->pid;
}
/*
......@@ -186,20 +188,28 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp,
frame = ((struct stack_frame *)
(THREAD_SIZE + (unsigned long) p->thread_info)) - 1;
p->thread.ksp = (unsigned long) frame;
memcpy(&frame->childregs,regs,sizeof(struct pt_regs));
frame->childregs = *regs;
frame->childregs.gprs[2] = 0; /* child returns 0 on fork. */
frame->childregs.gprs[15] = new_stackp;
frame->back_chain = frame->eos = 0;
/* new return point is ret_from_sys_call */
frame->gprs[8] = ((unsigned long) &ret_from_fork) | 0x80000000;
/* new return point is ret_from_fork */
frame->gprs[8] = (unsigned long) ret_from_fork;
/* start disabled because of schedule_tick and rq->lock being held */
frame->childregs.psw.mask &= ~0x03000000;
/* fake return stack for resume(), don't go back to schedule */
frame->gprs[9] = (unsigned long) frame;
/* save fprs, if used in last task */
save_fp_regs(&p->thread.fp_regs);
/*
* save fprs to current->thread.fp_regs to merge them with
* the emulated registers and then copy the result to the child.
*/
save_fp_regs(&current->thread.fp_regs);
memcpy(&p->thread.fp_regs, &current->thread.fp_regs,
sizeof(s390_fp_regs));
p->thread.user_seg = __pa((unsigned long) p->mm->pgd) | _SEGMENT_TABLE;
/* start process with ar4 pointing to the correct address space */
p->thread.ar4 = get_fs().ar4;
/* Don't copy debug registers */
memset(&p->thread.per_info,0,sizeof(p->thread.per_info));
return 0;
......@@ -208,7 +218,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp,
asmlinkage int sys_fork(struct pt_regs regs)
{
struct task_struct *p;
p = do_fork(SIGCHLD, regs.gprs[15], &regs, 0);
p = do_fork(SIGCHLD, regs.gprs[15], &regs, 0, NULL);
return IS_ERR(p) ? PTR_ERR(p) : p->pid;
}
......@@ -217,12 +227,14 @@ asmlinkage int sys_clone(struct pt_regs regs)
unsigned long clone_flags;
unsigned long newsp;
struct task_struct *p;
int *user_tid;
clone_flags = regs.gprs[3];
newsp = regs.orig_gpr2;
user_tid = (int *) regs.gprs[4];
if (!newsp)
newsp = regs.gprs[15];
p = do_fork(clone_flags & ~CLONE_IDLETASK, newsp, &regs, 0);
p = do_fork(clone_flags & ~CLONE_IDLETASK, newsp, &regs, 0, user_tid);
return IS_ERR(p) ? PTR_ERR(p) : p->pid;
}
......@@ -239,7 +251,8 @@ asmlinkage int sys_clone(struct pt_regs regs)
asmlinkage int sys_vfork(struct pt_regs regs)
{
struct task_struct *p;
p = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.gprs[15], &regs, 0);
p = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
regs.gprs[15], &regs, 0, NULL);
return IS_ERR(p) ? PTR_ERR(p) : p->pid;
}
......@@ -255,20 +268,13 @@ asmlinkage int sys_execve(struct pt_regs regs)
error = PTR_ERR(filename);
if (IS_ERR(filename))
goto out;
error = do_execve(filename, (char **) regs.gprs[3], (char **) regs.gprs[4], &regs);
if (error == 0)
{
error = do_execve(filename, (char **) regs.gprs[3],
(char **) regs.gprs[4], &regs);
if (error == 0) {
current->ptrace &= ~PT_DTRACE;
current->thread.fp_regs.fpc=0;
if(MACHINE_HAS_IEEE)
{
__asm__ __volatile__
("sr 0,0\n\t"
"sfpc 0,0\n\t"
:
:
:"0");
}
current->thread.fp_regs.fpc = 0;
if (MACHINE_HAS_IEEE)
asm volatile("sfpc %0,%0" : : "d" (0));
}
putname(filename);
out:
......@@ -281,7 +287,12 @@ asmlinkage int sys_execve(struct pt_regs regs)
*/
int dump_fpu (struct pt_regs * regs, s390_fp_regs *fpregs)
{
save_fp_regs(fpregs);
/*
* save fprs to current->thread.fp_regs to merge them with
* the emulated registers and then copy the result to the dump.
*/
save_fp_regs(&current->thread.fp_regs);
memcpy(fpregs, &current->thread.fp_regs, sizeof(s390_fp_regs));
return 1;
}
......@@ -295,15 +306,15 @@ void dump_thread(struct pt_regs * regs, struct user * dump)
dump->magic = CMAGIC;
dump->start_code = 0;
dump->start_stack = regs->gprs[15] & ~(PAGE_SIZE - 1);
dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
dump->u_tsize = current->mm->end_code >> PAGE_SHIFT;
dump->u_dsize = (current->mm->brk + PAGE_SIZE - 1) >> PAGE_SHIFT;
dump->u_dsize -= dump->u_tsize;
dump->u_ssize = 0;
if (dump->start_stack < TASK_SIZE)
dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
memcpy(&dump->regs.gprs[0],regs,sizeof(s390_regs));
dump->u_ssize = (TASK_SIZE - dump->start_stack) >> PAGE_SHIFT;
memcpy(&dump->regs, regs, sizeof(s390_regs));
dump_fpu (regs, &dump->regs.fp_regs);
memcpy(&dump->regs.per_info,&current->thread.per_info,sizeof(per_struct));
dump->regs.per_info = current->thread.per_info;
}
/*
......
arch/s390/kernel/ptrace.c
View file @ 7d155a9a
This diff is collapsed.
arch/s390/kernel/s390fpu.c deleted 100644 → 0
View file @ 7b874823
/*
* arch/s390/kernel/s390fpu.c
*
* S390 version
* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
*
* s390fpu.h functions for saving & restoring the fpu state.
*
* I couldn't inline these as linux/sched.h included half the world
* & was required to at the task structure.
* & the functions were too complex to make macros from.
* ( & as usual I didn't feel like debugging inline code ).
*/
#include <linux/config.h>
#include <linux/sched.h>
int save_fp_regs1(s390_fp_regs *fpregs)
{
int has_ieee=MACHINE_HAS_IEEE;
/*
I don't think we can use STE here as this would load
fp registers 0 & 2 into memory locations 0 & 1 etc.
*/
asm volatile ("STD 0,8(%0)\n\t"
"STD 2,24(%0)\n\t"
"STD 4,40(%0)\n\t"
"STD 6,56(%0)"
:
: "a" (fpregs)
: "memory"
);
if(has_ieee)
{
asm volatile ("STFPC 0(%0)\n\t"
"STD 1,16(%0)\n\t"
"STD 3,32(%0)\n\t"
"STD 5,48(%0)\n\t"
"STD 7,64(%0)\n\t"
"STD 8,72(%0)\n\t"
"STD 9,80(%0)\n\t"
"STD 10,88(%0)\n\t"
"STD 11,96(%0)\n\t"
"STD 12,104(%0)\n\t"
"STD 13,112(%0)\n\t"
"STD 14,120(%0)\n\t"
"STD 15,128(%0)\n\t"
:
: "a" (fpregs)
: "memory"
);
}
return(has_ieee);
}
void save_fp_regs(s390_fp_regs *fpregs)
{
#if CONFIG_MATHEMU
s390_fp_regs *currentfprs;
if(!save_fp_regs1(fpregs))
{
currentfprs=&current->thread.fp_regs;
fpregs->fpc=currentfprs->fpc;
fpregs->fprs[1].d=currentfprs->fprs[1].d;
fpregs->fprs[3].d=currentfprs->fprs[3].d;
fpregs->fprs[5].d=currentfprs->fprs[5].d;
fpregs->fprs[7].d=currentfprs->fprs[7].d;
memcpy(&fpregs->fprs[8].d,&currentfprs->fprs[8].d,sizeof(freg_t)*8);
}
#else
save_fp_regs1(fpregs);
#endif
}
int restore_fp_regs1(s390_fp_regs *fpregs)
{
int has_ieee=MACHINE_HAS_IEEE;
/* If we don't mask with the FPC_VALID_MASK here
* we've got a very quick shutdown -h now command
* via a kernel specification exception.
*/
fpregs->fpc&=FPC_VALID_MASK;
asm volatile ("LD 0,8(%0)\n\t"
"LD 2,24(%0)\n\t"
"LD 4,40(%0)\n\t"
"LD 6,56(%0)"
:
: "a" (fpregs)
: "memory"
);
if(has_ieee)
{
asm volatile ("LFPC 0(%0)\n\t"
"LD 1,16(%0)\n\t"
"LD 3,32(%0)\n\t"
"LD 5,48(%0)\n\t"
"LD 7,64(%0)\n\t"
"LD 8,72(%0)\n\t"
"LD 9,80(%0)\n\t"
"LD 10,88(%0)\n\t"
"LD 11,96(%0)\n\t"
"LD 12,104(%0)\n\t"
"LD 13,112(%0)\n\t"
"LD 14,120(%0)\n\t"
"LD 15,128(%0)\n\t"
:
: "a" (fpregs)
: "memory"
);
}
return(has_ieee);
}
void restore_fp_regs(s390_fp_regs *fpregs)
{
#if CONFIG_MATHEMU
s390_fp_regs *currentfprs;
if(!restore_fp_regs1(fpregs))
{
currentfprs=&current->thread.fp_regs;
currentfprs->fpc=fpregs->fpc;
currentfprs->fprs[1].d=fpregs->fprs[1].d;
currentfprs->fprs[3].d=fpregs->fprs[3].d;
currentfprs->fprs[5].d=fpregs->fprs[5].d;
currentfprs->fprs[7].d=fpregs->fprs[7].d;
memcpy(&currentfprs->fprs[8].d,&fpregs->fprs[8].d,sizeof(freg_t)*8);
}
#else
restore_fp_regs1(fpregs);
#endif
}
arch/s390/kernel/setup.c
View file @ 7d155a9a
......@@ -52,7 +52,6 @@ unsigned long machine_flags = 0;
struct { unsigned long addr, size, type; } memory_chunk[16] = { { 0 } };
#define CHUNK_READ_WRITE 0
#define CHUNK_READ_ONLY 1
__u16 boot_cpu_addr;
int cpus_initialized = 0;
unsigned long cpu_initialized = 0;
volatile int __cpu_logical_map[NR_CPUS]; /* logical cpu to cpu address */
......@@ -79,7 +78,7 @@ static struct resource data_resource = { "Kernel data", 0, 0 };
/*
* cpu_init() initializes state that is per-CPU.
*/
void __init cpu_init (void)
void __devinit cpu_init (void)
{
int nr = smp_processor_id();
int addr = hard_smp_processor_id();
......@@ -305,7 +304,7 @@ void __init setup_arch(char **cmdline_p)
unsigned long start_pfn, end_pfn;
static unsigned int smptrap=0;
unsigned long delay = 0;
struct _lowcore *lowcore;
struct _lowcore *lc;
int i;
if (smptrap)
......@@ -452,30 +451,28 @@ void __init setup_arch(char **cmdline_p)
/*
* Setup lowcore for boot cpu
*/
lowcore = (struct _lowcore *)
__alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0);
memset(lowcore, 0, PAGE_SIZE);
lowcore->restart_psw.mask = _RESTART_PSW_MASK;
lowcore->restart_psw.addr = _ADDR_31 + (addr_t) &restart_int_handler;
lowcore->external_new_psw.mask = _EXT_PSW_MASK;
lowcore->external_new_psw.addr = _ADDR_31 + (addr_t) &ext_int_handler;
lowcore->svc_new_psw.mask = _SVC_PSW_MASK;
lowcore->svc_new_psw.addr = _ADDR_31 + (addr_t) &system_call;
lowcore->program_new_psw.mask = _PGM_PSW_MASK;
lowcore->program_new_psw.addr = _ADDR_31 + (addr_t) &pgm_check_handler;
lowcore->mcck_new_psw.mask = _MCCK_PSW_MASK;
lowcore->mcck_new_psw.addr = _ADDR_31 + (addr_t) &mcck_int_handler;
lowcore->io_new_psw.mask = _IO_PSW_MASK;
lowcore->io_new_psw.addr = _ADDR_31 + (addr_t) &io_int_handler;
lowcore->ipl_device = S390_lowcore.ipl_device;
lowcore->kernel_stack = ((__u32) &init_thread_union) + 8192;
lowcore->async_stack = (__u32)
lc = (struct _lowcore *) __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0);
memset(lc, 0, PAGE_SIZE);
lc->restart_psw.mask = PSW_BASE_BITS;
lc->restart_psw.addr = PSW_ADDR_AMODE31 + (__u32) restart_int_handler;
lc->external_new_psw.mask = PSW_KERNEL_BITS;
lc->external_new_psw.addr = PSW_ADDR_AMODE31 + (__u32) ext_int_handler;
lc->svc_new_psw.mask = PSW_KERNEL_BITS;
lc->svc_new_psw.addr = PSW_ADDR_AMODE31 + (__u32) system_call;
lc->program_new_psw.mask = PSW_KERNEL_BITS;
lc->program_new_psw.addr = PSW_ADDR_AMODE31 + (__u32)pgm_check_handler;
lc->mcck_new_psw.mask = PSW_KERNEL_BITS;
lc->mcck_new_psw.addr = PSW_ADDR_AMODE31 + (__u32) mcck_int_handler;
lc->io_new_psw.mask = PSW_KERNEL_BITS;
lc->io_new_psw.addr = PSW_ADDR_AMODE31 + (__u32) io_int_handler;
lc->ipl_device = S390_lowcore.ipl_device;
lc->kernel_stack = ((__u32) &init_thread_union) + 8192;
lc->async_stack = (__u32)
__alloc_bootmem(2*PAGE_SIZE, 2*PAGE_SIZE, 0) + 8192;
lowcore->jiffy_timer = -1LL;
set_prefix((__u32) lowcore);
lc->jiffy_timer = -1LL;
set_prefix((__u32) lc);
cpu_init();
boot_cpu_addr = S390_lowcore.cpu_data.cpu_addr;
__cpu_logical_map[0] = boot_cpu_addr;
__cpu_logical_map[0] = S390_lowcore.cpu_data.cpu_addr;
/*
* Create kernel page tables and switch to virtual addressing.
......@@ -524,11 +521,14 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "vendor_id : IBM/S390\n"
"# processors : %i\n"
"bogomips per cpu: %lu.%02lu\n",
smp_num_cpus, loops_per_jiffy/(500000/HZ),
num_online_cpus(), loops_per_jiffy/(500000/HZ),
(loops_per_jiffy/(5000/HZ))%100);
}
if (cpu_online_map & (1 << n)) {
cpuinfo = &safe_get_cpu_lowcore(n)->cpu_data;
if (smp_processor_id() == n)
cpuinfo = &S390_lowcore.cpu_data;
else
cpuinfo = &lowcore_ptr[n]->cpu_data;
seq_printf(m, "processor %li: "
"version = %02X, "
"identification = %06X, "
......
arch/s390/kernel/signal.c
View file @ 7d155a9a
......@@ -49,22 +49,23 @@ typedef struct
struct ucontext uc;
} rt_sigframe;
asmlinkage int FASTCALL(do_signal(struct pt_regs *regs, sigset_t *oldset));
int do_signal(struct pt_regs *regs, sigset_t *oldset);
/*
* Atomically swap in the new signal mask, and wait for a signal.
*/
asmlinkage int
sys_sigsuspend(struct pt_regs * regs,int history0, int history1, old_sigset_t mask)
sys_sigsuspend(struct pt_regs * regs, int history0, int history1,
old_sigset_t mask)
{
sigset_t saveset;
mask &= _BLOCKABLE;
spin_lock_irq(&current->sigmask_lock);
spin_lock_irq(&current->sig->siglock);
saveset = current->blocked;
siginitset(&current->blocked, mask);
recalc_sigpending();
spin_unlock_irq(&current->sigmask_lock);
spin_unlock_irq(&current->sig->siglock);
regs->gprs[2] = -EINTR;
while (1) {
......@@ -88,11 +89,11 @@ sys_rt_sigsuspend(struct pt_regs * regs,sigset_t *unewset, size_t sigsetsize)
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
spin_lock_irq(&current->sigmask_lock);
spin_lock_irq(&current->sig->siglock);
saveset = current->blocked;
current->blocked = newset;
recalc_sigpending();
spin_unlock_irq(&current->sigmask_lock);
spin_unlock_irq(&current->sig->siglock);
regs->gprs[2] = -EINTR;
while (1) {
......@@ -147,37 +148,39 @@ sys_sigaltstack(const stack_t *uss, stack_t *uoss, struct pt_regs *regs)
static int save_sigregs(struct pt_regs *regs,_sigregs *sregs)
{
int err;
s390_fp_regs fpregs;
err = __copy_to_user(&sregs->regs,regs,sizeof(_s390_regs_common));
if(!err)
{
save_fp_regs(&fpregs);
err=__copy_to_user(&sregs->fpregs,&fpregs,sizeof(fpregs));
}
return(err);
err = __copy_to_user(&sregs->regs, regs, sizeof(_s390_regs_common));
if (err != 0)
return err;
/*
* We have to store the fp registers to current->thread.fp_regs
* to merge them with the emulated registers.
*/
save_fp_regs(&current->thread.fp_regs);
return __copy_to_user(&sregs->fpregs, &current->thread.fp_regs,
sizeof(s390_fp_regs));
}
/* Returns positive number on error */
static int restore_sigregs(struct pt_regs *regs,_sigregs *sregs)
{
int err;
s390_fp_regs fpregs;
psw_t saved_psw=regs->psw;
err=__copy_from_user(regs,&sregs->regs,sizeof(_s390_regs_common));
if(!err)
{
regs->trap = -1; /* disable syscall checks */
regs->psw.mask=(saved_psw.mask&~PSW_MASK_DEBUGCHANGE)|
(regs->psw.mask&PSW_MASK_DEBUGCHANGE);
regs->psw.addr=(saved_psw.addr&~PSW_ADDR_DEBUGCHANGE)|
(regs->psw.addr&PSW_ADDR_DEBUGCHANGE);
err=__copy_from_user(&fpregs,&sregs->fpregs,sizeof(fpregs));
if(!err)
restore_fp_regs(&fpregs);
}
return(err);
err = __copy_from_user(regs, &sregs->regs, sizeof(_s390_regs_common));
regs->psw.mask = PSW_USER_BITS | (regs->psw.mask & PSW_MASK_CC);
regs->psw.addr |= PSW_ADDR_AMODE31;
if (err)
return err;
err = __copy_from_user(&current->thread.fp_regs, &sregs->fpregs,
sizeof(s390_fp_regs));
current->thread.fp_regs.fpc &= FPC_VALID_MASK;
if (err)
return err;
restore_fp_regs(&current->thread.fp_regs);
regs->trap = -1; /* disable syscall checks */
return 0;
}
asmlinkage long sys_sigreturn(struct pt_regs *regs)
......@@ -191,10 +194,10 @@ asmlinkage long sys_sigreturn(struct pt_regs *regs)
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
spin_lock_irq(&current->sigmask_lock);
spin_lock_irq(&current->sig->siglock);
current->blocked = set;
recalc_sigpending();
spin_unlock_irq(&current->sigmask_lock);
spin_unlock_irq(&current->sig->siglock);
if (restore_sigregs(regs, &frame->sregs))
goto badframe;
......@@ -217,10 +220,10 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
spin_lock_irq(&current->sigmask_lock);
spin_lock_irq(&current->sig->siglock);
current->blocked = set;
recalc_sigpending();
spin_unlock_irq(&current->sigmask_lock);
spin_unlock_irq(&current->sig->siglock);
if (restore_sigregs(regs, &frame->uc.uc_mcontext))
goto badframe;
......@@ -295,9 +298,9 @@ static void setup_frame(int sig, struct k_sigaction *ka,
/* Set up to return from userspace. If provided, use a stub
already in userspace. */
if (ka->sa.sa_flags & SA_RESTORER) {
regs->gprs[14] = FIX_PSW(ka->sa.sa_restorer);
regs->gprs[14] = (__u32) ka->sa.sa_restorer | PSW_ADDR_AMODE31;
} else {
regs->gprs[14] = FIX_PSW(frame->retcode);
regs->gprs[14] = (__u32) frame->retcode | PSW_ADDR_AMODE31;
if (__put_user(S390_SYSCALL_OPCODE | __NR_sigreturn,
(u16 *)(frame->retcode)))
goto give_sigsegv;
......@@ -308,12 +311,12 @@ static void setup_frame(int sig, struct k_sigaction *ka,
goto give_sigsegv;
/* Set up registers for signal handler */
regs->gprs[15] = (addr_t)frame;
regs->psw.addr = FIX_PSW(ka->sa.sa_handler);
regs->psw.mask = _USER_PSW_MASK;
regs->gprs[15] = (__u32) frame;
regs->psw.addr = (__u32) ka->sa.sa_handler | PSW_ADDR_AMODE31;
regs->psw.mask = PSW_USER_BITS;
regs->gprs[2] = map_signal(sig);
regs->gprs[3] = (addr_t)&frame->sc;
regs->gprs[3] = (__u32) &frame->sc;
/* We forgot to include these in the sigcontext.
To avoid breaking binary compatibility, they are passed as args. */
......@@ -353,9 +356,9 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
/* Set up to return from userspace. If provided, use a stub
already in userspace. */
if (ka->sa.sa_flags & SA_RESTORER) {
regs->gprs[14] = FIX_PSW(ka->sa.sa_restorer);
regs->gprs[14] = (__u32) ka->sa.sa_restorer | PSW_ADDR_AMODE31;
} else {
regs->gprs[14] = FIX_PSW(frame->retcode);
regs->gprs[14] = (__u32) frame->retcode | PSW_ADDR_AMODE31;
err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
(u16 *)(frame->retcode));
}
......@@ -365,13 +368,13 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
goto give_sigsegv;
/* Set up registers for signal handler */
regs->gprs[15] = (addr_t)frame;
regs->psw.addr = FIX_PSW(ka->sa.sa_handler);
regs->psw.mask = _USER_PSW_MASK;
regs->gprs[15] = (__u32) frame;
regs->psw.addr = (__u32) ka->sa.sa_handler | PSW_ADDR_AMODE31;
regs->psw.mask = PSW_USER_BITS;
regs->gprs[2] = map_signal(sig);
regs->gprs[3] = (addr_t)&frame->info;
regs->gprs[4] = (addr_t)&frame->uc;
regs->gprs[3] = (__u32) &frame->info;
regs->gprs[4] = (__u32) &frame->uc;
return;
give_sigsegv:
......@@ -420,11 +423,11 @@ handle_signal(unsigned long sig, siginfo_t *info, sigset_t *oldset,
ka->sa.sa_handler = SIG_DFL;
if (!(ka->sa.sa_flags & SA_NODEFER)) {
spin_lock_irq(&current->sigmask_lock);
spin_lock_irq(&current->sig->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
sigaddset(&current->blocked,sig);
recalc_sigpending();
spin_unlock_irq(&current->sigmask_lock);
spin_unlock_irq(&current->sig->siglock);
}
}
......
arch/s390/kernel/smp.c
View file @ 7d155a9a
This diff is collapsed.
arch/s390/kernel/time.c
View file @ 7d155a9a
......@@ -27,6 +27,7 @@
#include <asm/uaccess.h>
#include <asm/delay.h>
#include <asm/s390_ext.h>
#include <asm/div64.h>
#include <linux/timex.h>
#include <linux/config.h>
......@@ -37,55 +38,39 @@
#define USECS_PER_JIFFY ((unsigned long) 1000000/HZ)
#define CLK_TICKS_PER_JIFFY ((unsigned long) USECS_PER_JIFFY << 12)
/*
* Create a small time difference between the timer interrupts
* on the different cpus to avoid lock contention.
*/
#define CPU_DEVIATION (smp_processor_id() << 12)
#define TICK_SIZE tick
u64 jiffies_64;
static ext_int_info_t ext_int_info_timer;
static uint64_t xtime_cc;
static uint64_t init_timer_cc;
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies;
void tod_to_timeval(__u64 todval, struct timeval *xtime)
void tod_to_timeval(__u64 todval, struct timespec *xtime)
{
const int high_bit = 0x80000000L;
const int c_f4240 = 0xf4240L;
const int c_7a120 = 0x7a120;
/* We have to divide the 64 bit value todval by 4096
* (because the 2^12 bit is the one that changes every
* microsecond) and then split it into seconds and
* microseconds. A value of max (2^52-1) divided by
* the value 0xF4240 can yield a max result of approx
* (2^32.068). Thats to big to fit into a signed int
* ... hacking time!
*/
asm volatile ("L 2,%1\n\t"
"LR 3,2\n\t"
"SRL 2,12\n\t"
"SLL 3,20\n\t"
"L 4,%O1+4(%R1)\n\t"
"SRL 4,12\n\t"
"OR 3,4\n\t" /* now R2/R3 contain (todval >> 12) */
"SR 4,4\n\t"
"CL 2,%2\n\t"
"JL .+12\n\t"
"S 2,%2\n\t"
"L 4,%3\n\t"
"D 2,%4\n\t"
"OR 3,4\n\t"
"ST 2,%O0+4(%R0)\n\t"
"ST 3,%0"
: "=m" (*xtime) : "m" (todval),
"m" (c_7a120), "m" (high_bit), "m" (c_f4240)
: "cc", "memory", "2", "3", "4" );
unsigned long long sec;
sec = todval >> 12;
do_div(sec, 1000000);
xtime->tv_sec = sec;
todval -= (sec * 1000000) << 12;
xtime->tv_nsec = ((todval * 1000) >> 12);
}
static inline unsigned long do_gettimeoffset(void)
{
__u64 now;
asm ("STCK 0(%0)" : : "a" (&now) : "memory", "cc");
asm volatile ("STCK 0(%0)" : : "a" (&now) : "memory", "cc");
now = (now - init_timer_cc) >> 12;
/* We require the offset from the latest update of xtime */
now -= (__u64) wall_jiffies*USECS_PER_JIFFY;
......@@ -102,7 +87,7 @@ void do_gettimeofday(struct timeval *tv)
read_lock_irqsave(&xtime_lock, flags);
sec = xtime.tv_sec;
usec = xtime.tv_usec + do_gettimeoffset();
usec = xtime.tv_nsec / 1000 + do_gettimeoffset();
read_unlock_irqrestore(&xtime_lock, flags);
while (usec >= 1000000) {
......@@ -118,7 +103,7 @@ void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec
/* This is revolting. We need to set the xtime.tv_nsec
* correctly. However, the value in this location is
* is value at the last tick.
* Discover what correction gettimeofday
......@@ -131,7 +116,8 @@ void do_settimeofday(struct timeval *tv)
tv->tv_sec--;
}
xtime = *tv;
xtime.tv_sec = tv->tv_sec;
xtime.tv_nsec = tv->tv_usec * 1000;
time_adjust = 0; /* stop active adjtime() */
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
......@@ -139,58 +125,90 @@ void do_settimeofday(struct timeval *tv)
write_unlock_irq(&xtime_lock);
}
static inline __u32 div64_32(__u64 dividend, __u32 divisor)
{
register_pair rp;
rp.pair = dividend;
asm ("dr %0,%1" : "+d" (rp) : "d" (divisor));
return rp.subreg.odd;
}
/*
* timer_interrupt() needs to keep up the real-time clock,
* as well as call the "do_timer()" routine every clocktick
*/
#ifdef CONFIG_SMP
extern __u16 boot_cpu_addr;
#endif
static void do_comparator_interrupt(struct pt_regs *regs, __u16 error_code)
{
int cpu = smp_processor_id();
__u64 tmp;
__u32 ticks;
/* Calculate how many ticks have passed. */
asm volatile ("STCK 0(%0)" : : "a" (&tmp) : "memory", "cc");
tmp = tmp - S390_lowcore.jiffy_timer;
if (tmp >= 2*CLK_TICKS_PER_JIFFY) { /* more than one tick ? */
ticks = div64_32(tmp >> 1, CLK_TICKS_PER_JIFFY >> 1);
S390_lowcore.jiffy_timer +=
CLK_TICKS_PER_JIFFY * (__u64) ticks;
} else {
ticks = 1;
S390_lowcore.jiffy_timer += CLK_TICKS_PER_JIFFY;
}
irq_enter(cpu, 0);
/* set clock comparator for next tick */
tmp = S390_lowcore.jiffy_timer + CLK_TICKS_PER_JIFFY + CPU_DEVIATION;
asm volatile ("SCKC %0" : : "m" (tmp));
/*
* set clock comparator for next tick
*/
S390_lowcore.jiffy_timer += CLK_TICKS_PER_JIFFY;
asm volatile ("SCKC %0" : : "m" (S390_lowcore.jiffy_timer));
irq_enter();
#ifdef CONFIG_SMP
if (S390_lowcore.cpu_data.cpu_addr == boot_cpu_addr)
write_lock(&xtime_lock);
update_process_times(user_mode(regs));
if (S390_lowcore.cpu_data.cpu_addr == boot_cpu_addr) {
do_timer(regs);
write_unlock(&xtime_lock);
/*
* Do not rely on the boot cpu to do the calls to do_timer.
* Spread it over all cpus instead.
*/
write_lock(&xtime_lock);
if (S390_lowcore.jiffy_timer > xtime_cc) {
__u32 xticks;
tmp = S390_lowcore.jiffy_timer - xtime_cc;
if (tmp >= 2*CLK_TICKS_PER_JIFFY) {
xticks = div64_32(tmp >> 1, CLK_TICKS_PER_JIFFY >> 1);
xtime_cc += (__u64) xticks * CLK_TICKS_PER_JIFFY;
} else {
xticks = 1;
xtime_cc += CLK_TICKS_PER_JIFFY;
}
while (xticks--)
do_timer(regs);
}
write_unlock(&xtime_lock);
while (ticks--)
update_process_times(user_mode(regs));
#else
do_timer(regs);
while (ticks--)
do_timer(regs);
#endif
irq_exit(cpu, 0);
irq_exit();
}
/*
* Start the clock comparator on the current CPU
* Start the clock comparator on the current CPU.
*/
void init_cpu_timer(void)
{
unsigned long cr0;
__u64 timer;
/* allow clock comparator timer interrupt */
asm volatile ("STCTL 0,0,%0" : "=m" (cr0) : : "memory");
cr0 |= 0x800;
asm volatile ("LCTL 0,0,%0" : : "m" (cr0) : "memory");
S390_lowcore.jiffy_timer = (__u64) jiffies * CLK_TICKS_PER_JIFFY;
S390_lowcore.jiffy_timer += init_timer_cc + CLK_TICKS_PER_JIFFY;
asm volatile ("SCKC %0" : : "m" (S390_lowcore.jiffy_timer));
timer = init_timer_cc + jiffies_64 * CLK_TICKS_PER_JIFFY;
S390_lowcore.jiffy_timer = timer;
timer += CLK_TICKS_PER_JIFFY + CPU_DEVIATION;
asm volatile ("SCKC %0" : : "m" (timer));
}
/*
......@@ -199,7 +217,7 @@ void init_cpu_timer(void)
*/
void __init time_init(void)
{
__u64 set_time_cc;
__u64 set_time_cc;
int cc;
/* kick the TOD clock */
......@@ -222,8 +240,9 @@ void __init time_init(void)
}
/* set xtime */
set_time_cc = init_timer_cc - 0x8126d60e46000000LL +
(0x3c26700LL*1000000*4096);
xtime_cc = init_timer_cc;
set_time_cc = init_timer_cc - 0x8126d60e46000000LL +
(0x3c26700LL*1000000*4096);
tod_to_timeval(set_time_cc, &xtime);
/* request the 0x1004 external interrupt */
......
arch/s390/kernel/traps.c
View file @ 7d155a9a
......@@ -116,22 +116,22 @@ void show_trace(unsigned long * stack)
stack = (unsigned long*)&stack;
printk("Call Trace: ");
low_addr = ((unsigned long) stack) & PSW_ADDR_MASK;
low_addr = ((unsigned long) stack) & PSW_ADDR_INSN;
high_addr = (low_addr & (-THREAD_SIZE)) + THREAD_SIZE;
/* Skip the first frame (biased stack) */
backchain = *((unsigned long *) low_addr) & PSW_ADDR_MASK;
backchain = *((unsigned long *) low_addr) & PSW_ADDR_INSN;
/* Print up to 8 lines */
for (i = 0; i < 8; i++) {
if (backchain < low_addr || backchain >= high_addr)
break;
ret_addr = *((unsigned long *) (backchain+56)) & PSW_ADDR_MASK;
ret_addr = *((unsigned long *) (backchain+56)) & PSW_ADDR_INSN;
if (!kernel_text_address(ret_addr))
break;
if (i && ((i % 6) == 0))
printk("\n ");
printk("[<%08lx>] ", ret_addr);
low_addr = backchain;
backchain = *((unsigned long *) backchain) & PSW_ADDR_MASK;
backchain = *((unsigned long *) backchain) & PSW_ADDR_INSN;
}
printk("\n");
}
......@@ -170,13 +170,21 @@ void show_stack(unsigned long *sp)
show_trace(sp);
}
/*
* The architecture-independent dump_stack generator
*/
void dump_stack(void)
{
show_stack(0);
}
void show_registers(struct pt_regs *regs)
{
mm_segment_t old_fs;
char *mode;
int i;
mode = (regs->psw.mask & PSW_PROBLEM_STATE) ? "User" : "Krnl";
mode = (regs->psw.mask & PSW_MASK_PSTATE) ? "User" : "Krnl";
printk("%s PSW : %08lx %08lx\n",
mode, (unsigned long) regs->psw.mask,
(unsigned long) regs->psw.addr);
......@@ -202,7 +210,7 @@ void show_registers(struct pt_regs *regs)
* time of the fault.
*/
old_fs = get_fs();
if (regs->psw.mask & PSW_PROBLEM_STATE)
if (regs->psw.mask & PSW_MASK_PSTATE)
set_fs(USER_DS);
else
set_fs(KERNEL_DS);
......@@ -279,10 +287,10 @@ static void inline do_trap(long interruption_code, int signr, char *str,
* We got all needed information from the lowcore and can
* now safely switch on interrupts.
*/
if (regs->psw.mask & PSW_PROBLEM_STATE)
if (regs->psw.mask & PSW_MASK_PSTATE)
local_irq_enable();
if (regs->psw.mask & PSW_PROBLEM_STATE) {
if (regs->psw.mask & PSW_MASK_PSTATE) {
struct task_struct *tsk = current;
tsk->thread.trap_no = interruption_code & 0xffff;
......@@ -314,12 +322,12 @@ static void inline do_trap(long interruption_code, int signr, char *str,
static inline void *get_check_address(struct pt_regs *regs)
{
return (void *) ADDR_BITS_REMOVE(regs->psw.addr-S390_lowcore.pgm_ilc);
return (void *)((regs->psw.addr-S390_lowcore.pgm_ilc) & PSW_ADDR_INSN);
}
int do_debugger_trap(struct pt_regs *regs,int signal)
{
if(regs->psw.mask&PSW_PROBLEM_STATE)
if(regs->psw.mask&PSW_MASK_PSTATE)
{
if(current->ptrace & PT_PTRACED)
force_sig(signal,current);
......@@ -415,10 +423,10 @@ asmlinkage void illegal_op(struct pt_regs * regs, long interruption_code)
* We got all needed information from the lowcore and can
* now safely switch on interrupts.
*/
if (regs->psw.mask & PSW_PROBLEM_STATE)
if (regs->psw.mask & PSW_MASK_PSTATE)
local_irq_enable();
if (regs->psw.mask & PSW_PROBLEM_STATE)
if (regs->psw.mask & PSW_MASK_PSTATE)
get_user(*((__u16 *) opcode), location);
else
*((__u16 *)opcode)=*((__u16 *)location);
......@@ -428,7 +436,7 @@ asmlinkage void illegal_op(struct pt_regs * regs, long interruption_code)
signal = SIGILL;
}
#ifdef CONFIG_MATHEMU
else if (regs->psw.mask & PSW_PROBLEM_STATE)
else if (regs->psw.mask & PSW_MASK_PSTATE)
{
if (opcode[0] == 0xb3) {
get_user(*((__u16 *) (opcode+2)), location+1);
......@@ -476,10 +484,10 @@ specification_exception(struct pt_regs * regs, long interruption_code)
* We got all needed information from the lowcore and can
* now safely switch on interrupts.
*/
if (regs->psw.mask & PSW_PROBLEM_STATE)
if (regs->psw.mask & PSW_MASK_PSTATE)
local_irq_enable();
if (regs->psw.mask & PSW_PROBLEM_STATE) {
if (regs->psw.mask & PSW_MASK_PSTATE) {
get_user(*((__u16 *) opcode), location);
switch (opcode[0]) {
case 0x28: /* LDR Rx,Ry */
......@@ -539,7 +547,7 @@ asmlinkage void data_exception(struct pt_regs * regs, long interruption_code)
* We got all needed information from the lowcore and can
* now safely switch on interrupts.
*/
if (regs->psw.mask & PSW_PROBLEM_STATE)
if (regs->psw.mask & PSW_MASK_PSTATE)
local_irq_enable();
if (MACHINE_HAS_IEEE)
......@@ -547,7 +555,7 @@ asmlinkage void data_exception(struct pt_regs * regs, long interruption_code)
: "=m" (current->thread.fp_regs.fpc));
#ifdef CONFIG_MATHEMU
else if (regs->psw.mask & PSW_PROBLEM_STATE) {
else if (regs->psw.mask & PSW_MASK_PSTATE) {
__u8 opcode[6];
get_user(*((__u16 *) opcode), location);
switch (opcode[0]) {
......@@ -671,21 +679,19 @@ void __init trap_init(void)
void handle_per_exception(struct pt_regs *regs)
{
if(regs->psw.mask&PSW_PROBLEM_STATE)
{
if (regs->psw.mask & PSW_MASK_PSTATE) {
per_struct *per_info=&current->thread.per_info;
per_info->lowcore.words.perc_atmid=S390_lowcore.per_perc_atmid;
per_info->lowcore.words.address=S390_lowcore.per_address;
per_info->lowcore.words.access_id=S390_lowcore.per_access_id;
}
if(do_debugger_trap(regs,SIGTRAP))
{
if (do_debugger_trap(regs,SIGTRAP)) {
/* I've seen this possibly a task structure being reused ? */
printk("Spurious per exception detected\n");
printk("switching off per tracing for this task.\n");
show_regs(regs);
/* Hopefully switching off per tracing will help us survive */
regs->psw.mask &= ~PSW_PER_MASK;
regs->psw.mask &= ~PSW_MASK_PER;
}
}
arch/s390/lib/Makefile
View file @ 7d155a9a
......@@ -6,8 +6,7 @@ L_TARGET = lib.a
EXTRA_AFLAGS := -traditional
obj-y = checksum.o delay.o memset.o misaligned.o strcmp.o strncpy.o uaccess.o
export-objs += misaligned.o
obj-y = delay.o memset.o strcmp.o strncpy.o uaccess.o
include $(TOPDIR)/Rules.make
arch/s390/lib/checksum.c deleted 100644 → 0
View file @ 7b874823
/*
* arch/s390/lib/checksum.c
* S390 fast network checksum routines
*
* S390 version
* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Ulrich Hild (first version),
* Martin Schwidefsky (schwidefsky@de.ibm.com),
* Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
*
* This file contains network checksum routines
*/
#include <linux/string.h>
#include <linux/types.h>
#include <asm/uaccess.h>
#include <asm/byteorder.h>
#include <asm/checksum.h>
/*
* computes a partial checksum, e.g. for TCP/UDP fragments
*/
unsigned int
csum_partial (const unsigned char *buff, int len, unsigned int sum)
{
register_pair rp;
/*
* Experiments with ethernet and slip connections show that buff
* is aligned on either a 2-byte or 4-byte boundary.
*/
rp.subreg.even = (unsigned long) buff;
rp.subreg.odd = (unsigned long) len;
__asm__ __volatile__ (
"0: cksm %0,%1\n" /* do checksum on longs */
" jo 0b\n"
: "+&d" (sum), "+&a" (rp) : : "cc" );
return sum;
}
/*
* Fold a partial checksum without adding pseudo headers
*/
unsigned short csum_fold(unsigned int sum)
{
register_pair rp;
__asm__ __volatile__ (
" slr %N1,%N1\n" /* %0 = H L */
" lr %1,%0\n" /* %0 = H L, %1 = H L 0 0 */
" srdl %1,16\n" /* %0 = H L, %1 = 0 H L 0 */
" alr %1,%N1\n" /* %0 = H L, %1 = L H L 0 */
" alr %0,%1\n" /* %0 = H+L+C L+H */
" srl %0,16\n" /* %0 = H+L+C */
: "+&d" (sum), "=d" (rp) : : "cc" );
return ((unsigned short) ~sum);
}
arch/s390/lib/misaligned.c deleted 100644 → 0
View file @ 7b874823
/*
* arch/s390/lib/misaligned.c
* S390 misalignment panic stubs
*
* S390 version
* Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com).
*
* xchg wants to panic if the pointer is not aligned. To avoid multiplying
* the panic message over and over again, the panic is done in the helper
* functions __misaligned_u32 and __misaligned_u16.
*/
#include <linux/module.h>
#include <linux/kernel.h>
void __misaligned_u16(void)
{
panic("misaligned (__u16 *) in __xchg\n");
}
void __misaligned_u32(void)
{
panic("misaligned (__u32 *) in __xchg\n");
}
EXPORT_SYMBOL(__misaligned_u16);
EXPORT_SYMBOL(__misaligned_u32);
arch/s390/mm/extable.c
View file @ 7d155a9a
......@@ -48,7 +48,7 @@ search_exception_table(unsigned long addr)
addr &= 0x7fffffff; /* remove amode bit from address */
/* There is only the kernel to search. */
ret = search_one_table(__start___ex_table, __stop___ex_table-1, addr);
if (ret) ret = FIX_PSW(ret);
if (ret) ret = ret | PSW_ADDR_AMODE31;
return ret;
#else
unsigned long flags;
......@@ -63,7 +63,7 @@ search_exception_table(unsigned long addr)
ret = search_one_table(mp->ex_table_start,
mp->ex_table_end - 1, addr);
if (ret) {
ret = FIX_PSW(ret);
ret = ret | PSW_ADDR_AMODE31;
break;
}
}
......
arch/s390/mm/fault.c
View file @ 7d155a9a
......@@ -46,7 +46,6 @@ extern spinlock_t timerlist_lock;
*/
void bust_spinlocks(int yes)
{
spin_lock_init(&timerlist_lock);
if (yes) {
oops_in_progress = 1;
} else {
......@@ -167,7 +166,7 @@ extern inline void do_exception(struct pt_regs *regs, unsigned long error_code)
/* Low-address protection hit in kernel mode means
NULL pointer write access in kernel mode. */
if (!(regs->psw.mask & PSW_PROBLEM_STATE)) {
if (!(regs->psw.mask & PSW_MASK_PSTATE)) {
address = 0;
user_address = 0;
goto no_context;
......@@ -234,16 +233,18 @@ extern inline void do_exception(struct pt_regs *regs, unsigned long error_code)
* the fault.
*/
switch (handle_mm_fault(mm, vma, address, error_code == 4)) {
case 1:
case VM_FAULT_MINOR:
tsk->min_flt++;
break;
case 2:
case VM_FAULT_MAJOR:
tsk->maj_flt++;
break;
case 0:
case VM_FAULT_SIGBUS:
goto do_sigbus;
default:
case VM_FAULT_OOM:
goto out_of_memory;
default:
BUG();
}
up_read(&mm->mmap_sem);
......@@ -257,7 +258,7 @@ extern inline void do_exception(struct pt_regs *regs, unsigned long error_code)
up_read(&mm->mmap_sem);
/* User mode accesses just cause a SIGSEGV */
if (regs->psw.mask & PSW_PROBLEM_STATE) {
if (regs->psw.mask & PSW_MASK_PSTATE) {
tsk->thread.prot_addr = address;
tsk->thread.trap_no = error_code;
force_sigsegv(regs, error_code, si_code, address);
......@@ -297,7 +298,7 @@ extern inline void do_exception(struct pt_regs *regs, unsigned long error_code)
goto survive;
}
printk("VM: killing process %s\n", tsk->comm);
if (regs->psw.mask & PSW_PROBLEM_STATE)
if (regs->psw.mask & PSW_MASK_PSTATE)
do_exit(SIGKILL);
goto no_context;
......@@ -313,7 +314,7 @@ extern inline void do_exception(struct pt_regs *regs, unsigned long error_code)
force_sig(SIGBUS, tsk);
/* Kernel mode? Handle exceptions or die */
if (!(regs->psw.mask & PSW_PROBLEM_STATE))
if (!(regs->psw.mask & PSW_MASK_PSTATE))
goto no_context;
}
......@@ -392,7 +393,7 @@ do_pseudo_page_fault(struct pt_regs *regs, unsigned long error_code)
spin_unlock(&pseudo_wait_spinlock);
} else {
/* Pseudo page faults in kernel mode is a bad idea */
if (!(regs->psw.mask & PSW_PROBLEM_STATE)) {
if (!(regs->psw.mask & PSW_MASK_PSTATE)) {
/*
* VM presents pseudo page faults if the interrupted
* state was not disabled for interrupts. So we can
......@@ -527,7 +528,7 @@ pfault_interrupt(struct pt_regs *regs, __u16 error_code)
* We got all needed information from the lowcore and can
* now safely switch on interrupts.
*/
if (regs->psw.mask & PSW_PROBLEM_STATE)
if (regs->psw.mask & PSW_MASK_PSTATE)
local_irq_enable();
if (subcode & 0x0080) {
......
arch/s390/vmlinux-shared.lds deleted 100644 → 0
View file @ 7b874823
/* ld script to make s390 Linux kernel
* Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
*/
OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
OUTPUT_ARCH(s390)
ENTRY(_start)
jiffies = jiffies_64 + 4;
SECTIONS
{
. = 0x00000000;
_text = .; /* Text and read-only data */
.text : {
*(.text)
*(.fixup)
*(.gnu.warning)
} = 0x0700
_etext = .; /* End of text section */
.rodata : { *(.rodata) }
.kstrtab : { *(.kstrtab) }
. = ALIGN(16); /* Exception table */
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
__start___ksymtab = .; /* Kernel symbol table */
__ksymtab : { *(__ksymtab) }
__stop___ksymtab = .;
. = ALIGN(1048576); /* VM shared segments are 1MB aligned */
_eshared = .; /* End of shareable data */
.data : { /* Data */
*(.data)
CONSTRUCTORS
}
_edata = .; /* End of data section */
. = ALIGN(8192); /* init_task */
.data.init_task : { *(.data.init_task) }
. = ALIGN(4096); /* Init code and data */
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(256);
__setup_start = .;
.setup.init : { *(.setup.init) }
__setup_end = .;
__initcall_start = .;
.initcall.init : {
*(.initcall1.init)
*(.initcall2.init)
*(.initcall3.init)
*(.initcall4.init)
*(.initcall5.init)
*(.initcall6.init)
*(.initcall7.init)
}
__initcall_end = .;
. = ALIGN(256);
__per_cpu_start = .;
.date.percpu : { *(.data.percpu) }
__per_cpu_end = .;
. = ALIGN(4096);
__init_end = .;
. = ALIGN(32);
.data.cacheline_aligned : { *(.data.cacheline_aligned) }
. = ALIGN(4096);
.data.page_aligned : { *(.data.idt) }
__bss_start = .; /* BSS */
.bss : {
*(.bss)
}
_end = . ;
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}
arch/s390/vmlinux.lds deleted 100644 → 0
View file @ 7b874823
/* ld script to make s390 Linux kernel
* Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
*/
OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
OUTPUT_ARCH(s390)
ENTRY(_start)
jiffies = jiffies_64 + 4;
SECTIONS
{
. = 0x00000000;
_text = .; /* Text and read-only data */
.text : {
*(.text)
*(.fixup)
*(.gnu.warning)
} = 0x0700
_etext = .; /* End of text section */
.rodata : { *(.rodata) *(.rodata.*) }
.kstrtab : { *(.kstrtab) }
. = ALIGN(16); /* Exception table */
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
__start___ksymtab = .; /* Kernel symbol table */
__ksymtab : { *(__ksymtab) }
__stop___ksymtab = .;
.data : { /* Data */
*(.data)
CONSTRUCTORS
}
_edata = .; /* End of data section */
. = ALIGN(8192); /* init_task */
.data.init_task : { *(.data.init_task) }
. = ALIGN(4096); /* Init code and data */
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(256);
__setup_start = .;
.setup.init : { *(.setup.init) }
__setup_end = .;
__initcall_start = .;
.initcall.init : {
*(.initcall1.init)
*(.initcall2.init)
*(.initcall3.init)
*(.initcall4.init)
*(.initcall5.init)
*(.initcall6.init)
*(.initcall7.init)
}
__initcall_end = .;
. = ALIGN(256);
__per_cpu_start = .;
.date.percpu : { *(.data.percpu) }
__per_cpu_end = .;
. = ALIGN(4096);
__init_end = .;
. = ALIGN(32);
.data.cacheline_aligned : { *(.data.cacheline_aligned) }
. = ALIGN(4096);
.data.page_aligned : { *(.data.idt) }
__bss_start = .; /* BSS */
.bss : {
*(.bss)
}
_end = . ;
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}
arch/s390/vmlinux.lds.S
View file @ 7d155a9a
#include <linux/config.h>
/* ld script to make s390 Linux kernel
* Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
*/
OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
OUTPUT_ARCH(s390)
ENTRY(_start)
jiffies = jiffies_64 + 4;
SECTIONS
{
. = 0x00000000;
_text = .; /* Text and read-only data */
.text : {
*(.text)
*(.fixup)
*(.gnu.warning)
} = 0x0700
_etext = .; /* End of text section */
.rodata : { *(.rodata) *(.rodata.*) }
.kstrtab : { *(.kstrtab) }
. = ALIGN(16); /* Exception table */
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
__start___ksymtab = .; /* Kernel symbol table */
__ksymtab : { *(__ksymtab) }
__stop___ksymtab = .;
#ifdef CONFIG_SHARED_KERNEL
#include "vmlinux-shared.lds"
#else
#include "vmlinux.lds"
. = ALIGN(1048576); /* VM shared segments are 1MB aligned */
_eshared = .; /* End of shareable data */
#endif
.data : { /* Data */
*(.data)
CONSTRUCTORS
}
_edata = .; /* End of data section */
. = ALIGN(8192); /* init_task */
.data.init_task : { *(.data.init_task) }
. = ALIGN(4096); /* Init code and data */
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(256);
__setup_start = .;
.setup.init : { *(.setup.init) }
__setup_end = .;
__initcall_start = .;
.initcall.init : {
*(.initcall1.init)
*(.initcall2.init)
*(.initcall3.init)
*(.initcall4.init)
*(.initcall5.init)
*(.initcall6.init)
*(.initcall7.init)
}
__initcall_end = .;
. = ALIGN(256);
__per_cpu_start = .;
.date.percpu : { *(.data.percpu) }
__per_cpu_end = .;
. = ALIGN(4096);
__init_end = .;
. = ALIGN(32);
.data.cacheline_aligned : { *(.data.cacheline_aligned) }
. = ALIGN(4096);
.data.page_aligned : { *(.data.idt) }
__bss_start = .; /* BSS */
.bss : {
*(.bss)
}
_end = . ;
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}
arch/s390x/Config.help
View file @ 7d155a9a
......@@ -159,25 +159,11 @@ CONFIG_IPL_TAPE
Select "vm_reader" if you are running under VM/ESA and want
to IPL the image from the emulated card reader.
CONFIG_FAST_IRQ
Select this option in order to get the interrupts processed faster
on your S/390 or zSeries machine. If selected, after an interrupt
is processed, the channel subsystem will be asked for other pending
interrupts which will also be processed before leaving the interrupt
context. This speeds up the I/O a lot. Say "Y".
CONFIG_MACHCHK_WARNING
Select this option if you want the machine check handler on IBM S/390 or
zSeries to process warning machine checks (e.g. on power failures).
If unsure, say "Y".
CONFIG_CHSC
Select this option if you want the s390 common I/O layer to use information
obtained by channel subsystem calls. This will enable Linux to process link
failures and resource accessibility events. Moreover, if you have procfs
enabled, you'll be able to toggle chpids logically offline and online. Even
if you don't understand what this means, you should say "Y".
CONFIG_S390_SUPPORT
Select this option if you want to enable your system kernel to
handle system-calls from ELF binaries for 31 bit ESA. This option
......
arch/s390x/Makefile
View file @ 7d155a9a
......@@ -26,7 +26,7 @@ HEAD := arch/s390x/kernel/head.o arch/s390x/kernel/init_task.o
core-y += arch/s390x/mm/ arch/s390x/kernel/
drivers-y += drivers/s390/
libs-y += arch/s390/lib/
libs-y += arch/s390x/lib/
all: image listing
......
arch/s390x/config.in
View file @ 7d155a9a
......@@ -17,31 +17,30 @@ define_bool CONFIG_ARCH_S390X y
source init/Config.in
mainmenu_option next_comment
comment 'Base setup'
comment 'Processor type and features'
bool 'Symmetric multi-processing support' CONFIG_SMP
bool 'Kernel support for 31 bit emulation' CONFIG_S390_SUPPORT
if [ "$CONFIG_S390_SUPPORT" = "y" ]; then
tristate 'Kernel support for 31 bit ELF binaries' CONFIG_BINFMT_ELF32
fi
endmenu
mainmenu_option next_comment
comment 'Base setup'
bool 'Fast IRQ handling' CONFIG_FAST_IRQ
comment 'I/O subsystem configuration'
bool 'Process warning machine checks' CONFIG_MACHCHK_WARNING
bool 'Use chscs for Common I/O' CONFIG_CHSC
tristate 'QDIO support' CONFIG_QDIO
if [ "$CONFIG_QDIO" != "n" ]; then
bool ' Performance statistics in /proc' CONFIG_QDIO_PERF_STATS
fi
if [ "$CONFIG_QDIO" != "n" ]; then
bool ' Performance statistics in /proc' CONFIG_QDIO_PERF_STATS
fi
comment 'Misc'
bool 'Preemptible Kernel' CONFIG_PREEMPT
bool 'Builtin IPL record support' CONFIG_IPL
if [ "$CONFIG_IPL" = "y" ]; then
choice 'IPL method generated into head.S' \
"tape CONFIG_IPL_TAPE \
vm_reader CONFIG_IPL_VM" tape
fi
define_bool CONFIG_KCORE_ELF y
tristate 'Kernel support for ELF binaries' CONFIG_BINFMT_ELF
tristate 'Kernel support for MISC binaries' CONFIG_BINFMT_MISC
......@@ -71,7 +70,6 @@ source fs/Config.in
mainmenu_option next_comment
comment 'Kernel hacking'
#bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC
#if [ "$CONFIG_CTC" = "y" ]; then
# bool 'Remote GDB kernel debugging' CONFIG_REMOTE_DEBUG
#fi
......
arch/s390x/defconfig
View file @ 7d155a9a
This diff is collapsed.
arch/s390x/kernel/Makefile
View file @ 7d155a9a
......@@ -5,12 +5,12 @@
EXTRA_TARGETS := head.o init_task.o
EXTRA_AFLAGS := -traditional
export-objs := debug.o ebcdic.o irq.o s390_ext.o smp.o s390_ksyms.o \
export-objs := debug.o ebcdic.o s390_ext.o smp.o s390_ksyms.o \
exec32.o
obj-y := entry.o bitmap.o traps.o time.o process.o irq.o \
obj-y := entry.o bitmap.o traps.o time.o process.o \
setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
semaphore.o s390fpu.o reipl.o s390_ext.o debug.o
semaphore.o reipl.o s390_ext.o debug.o
obj-$(CONFIG_MODULES) += s390_ksyms.o
obj-$(CONFIG_SMP) += smp.o
......
arch/s390x/kernel/debug.c
View file @ 7d155a9a
This diff is collapsed.
arch/s390x/kernel/entry.S
View file @ 7d155a9a
This diff is collapsed.
arch/s390x/kernel/head.S
View file @ 7d155a9a
......@@ -555,6 +555,17 @@ startup:basr %r13,0 # get base
oi 7(%r12),16 # set MVPG flag
0:
#
# find out if the diag 0x44 works in 64 bit mode
#
la %r1,0f-.LPG1(%r13) # set program check address
stg %r1,__LC_PGM_NEW_PSW+8
mvc __LC_DIAG44_OPCODE(8),.Lnop-.LPG1(%r13)
diag 0,0,0x44 # test diag 0x44
oi 7(%r12),32 # set diag44 flag
mvc __LC_DIAG44_OPCODE(8),.Ldiag44-.LPG1(%r13)
0:
lpswe .Lentry-.LPG1(13) # jump to _stext in primary-space,
# virtual and never return ...
.align 16
......@@ -578,6 +589,8 @@ startup:basr %r13,0 # get base
.Lpcmsk:.quad 0x0000000180000000
.L4malign:.quad 0xffffffffffc00000
.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8
.Lnop: .long 0x07000700
.Ldiag44:.long 0x83000044
.org PARMAREA-64
.Lduct: .long 0,0,0,0,0,0,0,0
......@@ -645,5 +658,5 @@ _stext: basr %r13,0 # get base
#
.align 8
.Ldw: .quad 0x0002000180000000,0x0000000000000000
.Laregs: .long 0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0
.Laregs: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
arch/s390x/kernel/init_task.c
View file @ 7d155a9a
......@@ -15,7 +15,7 @@
static struct fs_struct init_fs = INIT_FS;
static struct files_struct init_files = INIT_FILES;
static struct signal_struct init_signals = INIT_SIGNALS;
static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
struct mm_struct init_mm = INIT_MM(init_mm);
/*
......
arch/s390x/kernel/irq.c deleted 100644 → 0
View file @ 7b874823
This diff is collapsed.
arch/s390x/kernel/linux32.c
View file @ 7d155a9a
This diff is collapsed.
arch/s390x/kernel/linux32.h
View file @ 7d155a9a
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arch/s390x/kernel/process.c
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......@@ -6,8 +6,7 @@ L_TARGET = lib.a
EXTRA_AFLAGS := -traditional
obj-y = checksum.o delay.o memset.o misaligned.o strcmp.o strncpy.o uaccess.o
export-objs += misaligned.o
obj-y = delay.o memset.o strcmp.o strncpy.o uaccess.o
include $(TOPDIR)/Rules.make
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