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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-27 16:20:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-27 16:20:17 -0800
commit7981164791d18d5ed1dcdfa9598949ed158a5333 (patch)
tree6565e7406dd55eb5014efd3e54109159a47cb10e /arch/s390
parentf1dd6ad599732fc89f36fdd65a2c2cf3c63a8711 (diff)
parenta8d6356cdabf4495aaae7d3e89eb058b1909761c (diff)
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (35 commits) [S390] time: remove unused code [S390] zcore: Add prefix registers to dump header [S390] correct vdso version string [S390] add support for compressed kernels [S390] Define new s390 ELF note sections in elf.h [S390] codepage conversion of kernel parameter line [S390] seq_file: convert drivers/s390/ [S390] add z9-ec/z10 instruction to kernel disassembler [S390] dasd: correct offline processing [S390] dasd: fix refcounting. [S390] dasd: fix online/offline race [S390] use kprobes_built_in() in mm/fault code [S390] bug: use relative pointers in bug table entries [S390] Cleanup struct _lowcore usage and defines. [S390] free_initmem: reduce code duplication [S390] Replace ENOTSUPP usage with EOPNOTSUPP [S390] spinlock: check virtual cpu running status [S390] sysinfo: fix SYSIB 3,2,2 structure [S390] add MACHINE_IS_LPAR flag [S390] qdio: optimize cache line usage of struct qdio_irq ...
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/Kconfig6
-rw-r--r--arch/s390/Kconfig.debug13
-rw-r--r--arch/s390/Makefile13
-rw-r--r--arch/s390/boot/Makefile8
-rw-r--r--arch/s390/boot/compressed/Makefile60
-rw-r--r--arch/s390/boot/compressed/head31.S51
-rw-r--r--arch/s390/boot/compressed/head64.S48
-rw-r--r--arch/s390/boot/compressed/misc.c158
-rw-r--r--arch/s390/boot/compressed/vmlinux.lds.S55
-rw-r--r--arch/s390/boot/compressed/vmlinux.scr10
-rw-r--r--arch/s390/defconfig7
-rw-r--r--arch/s390/hypfs/hypfs_diag.c4
-rw-r--r--arch/s390/include/asm/atomic.h86
-rw-r--r--arch/s390/include/asm/bitops.h83
-rw-r--r--arch/s390/include/asm/bug.h10
-rw-r--r--arch/s390/include/asm/crw.h1
-rw-r--r--arch/s390/include/asm/etr.h12
-rw-r--r--arch/s390/include/asm/irqflags.h36
-rw-r--r--arch/s390/include/asm/lowcore.h250
-rw-r--r--arch/s390/include/asm/page.h3
-rw-r--r--arch/s390/include/asm/processor.h18
-rw-r--r--arch/s390/include/asm/qdio.h3
-rw-r--r--arch/s390/include/asm/rwsem.h147
-rw-r--r--arch/s390/include/asm/setup.h9
-rw-r--r--arch/s390/include/asm/sigp.h142
-rw-r--r--arch/s390/include/asm/smp.h38
-rw-r--r--arch/s390/include/asm/spinlock.h18
-rw-r--r--arch/s390/include/asm/swab.h16
-rw-r--r--arch/s390/include/asm/sysinfo.h3
-rw-r--r--arch/s390/include/asm/system.h168
-rw-r--r--arch/s390/include/asm/thread_info.h2
-rw-r--r--arch/s390/include/asm/timex.h22
-rw-r--r--arch/s390/include/asm/uaccess.h12
-rw-r--r--arch/s390/include/asm/vdso.h2
-rw-r--r--arch/s390/kernel/Makefile3
-rw-r--r--arch/s390/kernel/asm-offsets.c99
-rw-r--r--arch/s390/kernel/base.S2
-rw-r--r--arch/s390/kernel/dis.c369
-rw-r--r--arch/s390/kernel/early.c22
-rw-r--r--arch/s390/kernel/entry.S1
-rw-r--r--arch/s390/kernel/entry64.S2
-rw-r--r--arch/s390/kernel/ftrace.c2
-rw-r--r--arch/s390/kernel/head.S60
-rw-r--r--arch/s390/kernel/head31.S16
-rw-r--r--arch/s390/kernel/head64.S92
-rw-r--r--arch/s390/kernel/ipl.c41
-rw-r--r--arch/s390/kernel/machine_kexec.c10
-rw-r--r--arch/s390/kernel/reipl.S2
-rw-r--r--arch/s390/kernel/reipl64.S2
-rw-r--r--arch/s390/kernel/sclp.S36
-rw-r--r--arch/s390/kernel/setup.c11
-rw-r--r--arch/s390/kernel/smp.c108
-rw-r--r--arch/s390/kernel/switch_cpu.S58
-rw-r--r--arch/s390/kernel/switch_cpu64.S51
-rw-r--r--arch/s390/kernel/swsusp_asm64.S2
-rw-r--r--arch/s390/kernel/time.c8
-rw-r--r--arch/s390/kernel/vdso.c1
-rw-r--r--arch/s390/kvm/diag.c4
-rw-r--r--arch/s390/kvm/intercept.c18
-rw-r--r--arch/s390/kvm/interrupt.c12
-rw-r--r--arch/s390/kvm/kvm-s390.c23
-rw-r--r--arch/s390/kvm/priv.c2
-rw-r--r--arch/s390/kvm/sigp.c4
-rw-r--r--arch/s390/lib/Makefile2
-rw-r--r--arch/s390/lib/spinlock.c53
-rw-r--r--arch/s390/lib/usercopy.c8
-rw-r--r--arch/s390/mm/extmem.c12
-rw-r--r--arch/s390/mm/fault.c5
-rw-r--r--arch/s390/mm/init.c33
69 files changed, 1632 insertions, 1056 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c80235206c01..19deda8d8875 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -54,6 +54,9 @@ config GENERIC_BUG
depends on BUG
default y
+config GENERIC_BUG_RELATIVE_POINTERS
+ def_bool y
+
config NO_IOMEM
def_bool y
@@ -95,6 +98,9 @@ config S390
select HAVE_ARCH_TRACEHOOK
select INIT_ALL_POSSIBLE
select HAVE_PERF_EVENTS
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_BZIP2
+ select HAVE_KERNEL_LZMA
select ARCH_INLINE_SPIN_TRYLOCK
select ARCH_INLINE_SPIN_TRYLOCK_BH
select ARCH_INLINE_SPIN_LOCK
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 2283933a9a93..45e0c6199f36 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -6,4 +6,17 @@ config TRACE_IRQFLAGS_SUPPORT
source "lib/Kconfig.debug"
+config DEBUG_STRICT_USER_COPY_CHECKS
+ bool "Strict user copy size checks"
+ ---help---
+ Enabling this option turns a certain set of sanity checks for user
+ copy operations into compile time warnings.
+
+ The copy_from_user() etc checks are there to help test if there
+ are sufficient security checks on the length argument of
+ the copy operation, by having gcc prove that the argument is
+ within bounds.
+
+ If unsure, or if you run an older (pre 4.4) gcc, say N.
+
endmenu
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index fc8fb20e7fc0..0da10746e0e5 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -14,6 +14,7 @@
#
ifndef CONFIG_64BIT
+LD_BFD := elf32-s390
LDFLAGS := -m elf_s390
KBUILD_CFLAGS += -m31
KBUILD_AFLAGS += -m31
@@ -21,6 +22,7 @@ UTS_MACHINE := s390
STACK_SIZE := 8192
CHECKFLAGS += -D__s390__ -msize-long
else
+LD_BFD := elf64-s390
LDFLAGS := -m elf64_s390
MODFLAGS += -fpic -D__PIC__
KBUILD_CFLAGS += -m64
@@ -30,6 +32,8 @@ STACK_SIZE := 16384
CHECKFLAGS += -D__s390__ -D__s390x__
endif
+export LD_BFD
+
cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5)
cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
@@ -85,7 +89,9 @@ KBUILD_AFLAGS += $(aflags-y)
OBJCOPYFLAGS := -O binary
LDFLAGS_vmlinux := -e start
-head-y := arch/s390/kernel/head.o arch/s390/kernel/init_task.o
+head-y := arch/s390/kernel/head.o
+head-y += arch/s390/kernel/$(if $(CONFIG_64BIT),head64.o,head31.o)
+head-y += arch/s390/kernel/init_task.o
core-y += arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \
arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/
@@ -99,12 +105,12 @@ drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
boot := arch/s390/boot
-all: image
+all: image bzImage
install: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $@
-image: vmlinux
+image bzImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
zfcpdump:
@@ -116,4 +122,5 @@ archclean:
# Don't use tabs in echo arguments
define archhelp
echo '* image - Kernel image for IPL ($(boot)/image)'
+ echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)'
endef
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 4d97eef36b8d..8800cf090694 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -9,10 +9,18 @@ COMPILE_VERSION := __linux_compile_version_id__`hostname | \
EXTRA_CFLAGS := -DCOMPILE_VERSION=$(COMPILE_VERSION) -gstabs -I.
targets := image
+targets += bzImage
+subdir- := compressed
$(obj)/image: vmlinux FORCE
$(call if_changed,objcopy)
+$(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/compressed/vmlinux: FORCE
+ $(Q)$(MAKE) $(build)=$(obj)/compressed $@
+
install: $(CONFIGURE) $(obj)/image
sh -x $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/image \
System.map Kerntypes "$(INSTALL_PATH)"
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile
new file mode 100644
index 000000000000..6e4a67ad07e1
--- /dev/null
+++ b/arch/s390/boot/compressed/Makefile
@@ -0,0 +1,60 @@
+#
+# linux/arch/s390/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+BITS := $(if $(CONFIG_64BIT),64,31)
+
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
+ vmlinux.bin.lzma misc.o piggy.o sizes.h head$(BITS).o
+
+KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
+KBUILD_CFLAGS += $(cflags-y)
+KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
+KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
+
+GCOV_PROFILE := n
+
+OBJECTS := $(addprefix $(objtree)/arch/s390/kernel/, head.o sclp.o ebcdic.o)
+OBJECTS += $(obj)/head$(BITS).o $(obj)/misc.o $(obj)/piggy.o
+
+LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS)
+ $(call if_changed,ld)
+ @:
+
+sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p'
+
+quiet_cmd_sizes = GEN $@
+ cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
+
+$(obj)/sizes.h: vmlinux
+ $(call if_changed,sizes)
+
+AFLAGS_head$(BITS).o += -I$(obj)
+$(obj)/head$(BITS).o: $(obj)/sizes.h
+
+CFLAGS_misc.o += -I$(obj)
+$(obj)/misc.o: $(obj)/sizes.h
+
+OBJCOPYFLAGS_vmlinux.bin := -R .comment -S
+$(obj)/vmlinux.bin: vmlinux
+ $(call if_changed,objcopy)
+
+vmlinux.bin.all-y := $(obj)/vmlinux.bin
+
+suffix-$(CONFIG_KERNEL_GZIP) := gz
+suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_LZMA) := lzma
+
+$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y)
+ $(call if_changed,gzip)
+$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y)
+ $(call if_changed,bzip2)
+$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
+ $(call if_changed,lzma)
+
+LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y)
+ $(call if_changed,ld)
diff --git a/arch/s390/boot/compressed/head31.S b/arch/s390/boot/compressed/head31.S
new file mode 100644
index 000000000000..2a5523a32bcc
--- /dev/null
+++ b/arch/s390/boot/compressed/head31.S
@@ -0,0 +1,51 @@
+/*
+ * Startup glue code to uncompress the kernel
+ *
+ * Copyright IBM Corp. 2010
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+__HEAD
+ .globl startup_continue
+startup_continue:
+ basr %r13,0 # get base
+.LPG1:
+ # setup stack
+ l %r15,.Lstack-.LPG1(%r13)
+ ahi %r15,-96
+ l %r1,.Ldecompress-.LPG1(%r13)
+ basr %r14,%r1
+ # setup registers for memory mover & branch to target
+ lr %r4,%r2
+ l %r2,.Loffset-.LPG1(%r13)
+ la %r4,0(%r2,%r4)
+ l %r3,.Lmvsize-.LPG1(%r13)
+ lr %r5,%r3
+ # move the memory mover someplace safe
+ la %r1,0x200
+ mvc 0(mover_end-mover,%r1),mover-.LPG1(%r13)
+ # decompress image is started at 0x11000
+ lr %r6,%r2
+ br %r1
+mover:
+ mvcle %r2,%r4,0
+ jo mover
+ br %r6
+mover_end:
+
+ .align 8
+.Lstack:
+ .long 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
+.Ldecompress:
+ .long decompress_kernel
+.Loffset:
+ .long 0x11000
+.Lmvsize:
+ .long SZ__bss_start
diff --git a/arch/s390/boot/compressed/head64.S b/arch/s390/boot/compressed/head64.S
new file mode 100644
index 000000000000..2982cb140550
--- /dev/null
+++ b/arch/s390/boot/compressed/head64.S
@@ -0,0 +1,48 @@
+/*
+ * Startup glue code to uncompress the kernel
+ *
+ * Copyright IBM Corp. 2010
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+__HEAD
+ .globl startup_continue
+startup_continue:
+ basr %r13,0 # get base
+.LPG1:
+ # setup stack
+ lg %r15,.Lstack-.LPG1(%r13)
+ aghi %r15,-160
+ brasl %r14,decompress_kernel
+ # setup registers for memory mover & branch to target
+ lgr %r4,%r2
+ lg %r2,.Loffset-.LPG1(%r13)
+ la %r4,0(%r2,%r4)
+ lg %r3,.Lmvsize-.LPG1(%r13)
+ lgr %r5,%r3
+ # move the memory mover someplace safe
+ la %r1,0x200
+ mvc 0(mover_end-mover,%r1),mover-.LPG1(%r13)
+ # decompress image is started at 0x11000
+ lgr %r6,%r2
+ br %r1
+mover:
+ mvcle %r2,%r4,0
+ jo mover
+ br %r6
+mover_end:
+
+ .align 8
+.Lstack:
+ .quad 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
+.Loffset:
+ .quad 0x11000
+.Lmvsize:
+ .quad SZ__bss_start
diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c
new file mode 100644
index 000000000000..a97d69525829
--- /dev/null
+++ b/arch/s390/boot/compressed/misc.c
@@ -0,0 +1,158 @@
+/*
+ * Definitions and wrapper functions for kernel decompressor
+ *
+ * Copyright IBM Corp. 2010
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#include <asm/uaccess.h>
+#include <asm/page.h>
+#include <asm/ipl.h>
+#include "sizes.h"
+
+/*
+ * gzip declarations
+ */
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#undef memmove
+#define memzero(s, n) memset((s), 0, (n))
+
+/* Symbols defined by linker scripts */
+extern char input_data[];
+extern int input_len;
+extern int _text;
+extern int _end;
+
+static void error(char *m);
+
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#ifdef CONFIG_HAVE_KERNEL_BZIP2
+#define HEAP_SIZE 0x400000
+#else
+#define HEAP_SIZE 0x10000
+#endif
+
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_BZIP2
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+extern _sclp_print_early(const char *);
+
+int puts(const char *s)
+{
+ _sclp_print_early(s);
+ return 0;
+}
+
+void *memset(void *s, int c, size_t n)
+{
+ char *xs;
+
+ if (c == 0)
+ return __builtin_memset(s, 0, n);
+
+ xs = (char *) s;
+ if (n > 0)
+ do {
+ *xs++ = c;
+ } while (--n > 0);
+ return s;
+}
+
+void *memcpy(void *__dest, __const void *__src, size_t __n)
+{
+ return __builtin_memcpy(__dest, __src, __n);
+}
+
+void *memmove(void *__dest, __const void *__src, size_t __n)
+{
+ char *d;
+ const char *s;
+
+ if (__dest <= __src)
+ return __builtin_memcpy(__dest, __src, __n);
+ d = __dest + __n;
+ s = __src + __n;
+ while (__n--)
+ *--d = *--s;
+ return __dest;
+}
+
+static void error(char *x)
+{
+ unsigned long long psw = 0x000a0000deadbeefULL;
+
+ puts("\n\n");
+ puts(x);
+ puts("\n\n -- System halted");
+
+ asm volatile("lpsw %0" : : "Q" (psw));
+}
+
+/*
+ * Safe guard the ipl parameter block against a memory area that will be
+ * overwritten. The validity check for the ipl parameter block is complex
+ * (see cio_get_iplinfo and ipl_save_parameters) but if the pointer to
+ * the ipl parameter block intersects with the passed memory area we can
+ * safely assume that we can read from that memory. In that case just copy
+ * the memory to IPL_PARMBLOCK_ORIGIN even if there is no ipl parameter
+ * block.
+ */
+static void check_ipl_parmblock(void *start, unsigned long size)
+{
+ void *src, *dst;
+
+ src = (void *)(unsigned long) S390_lowcore.ipl_parmblock_ptr;
+ if (src + PAGE_SIZE <= start || src >= start + size)
+ return;
+ dst = (void *) IPL_PARMBLOCK_ORIGIN;
+ memmove(dst, src, PAGE_SIZE);
+ S390_lowcore.ipl_parmblock_ptr = IPL_PARMBLOCK_ORIGIN;
+}
+
+unsigned long decompress_kernel(void)
+{
+ unsigned long output_addr;
+ unsigned char *output;
+
+ free_mem_ptr = (unsigned long)&_end;
+ free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+ output = (unsigned char *) ((free_mem_end_ptr + 4095UL) & -4096UL);
+
+ check_ipl_parmblock((void *) 0, (unsigned long) output + SZ__bss_start);
+
+#ifdef CONFIG_BLK_DEV_INITRD
+ /*
+ * Move the initrd right behind the end of the decompressed
+ * kernel image.
+ */
+ if (INITRD_START && INITRD_SIZE &&
+ INITRD_START < (unsigned long) output + SZ__bss_start) {
+ check_ipl_parmblock(output + SZ__bss_start,
+ INITRD_START + INITRD_SIZE);
+ memmove(output + SZ__bss_start,
+ (void *) INITRD_START, INITRD_SIZE);
+ INITRD_START = (unsigned long) output + SZ__bss_start;
+ }
+#endif
+
+ puts("Uncompressing Linux... ");
+ decompress(input_data, input_len, NULL, NULL, output, NULL, error);
+ puts("Ok, booting the kernel.\n");
+ return (unsigned long) output;
+}
+
diff --git a/arch/s390/boot/compressed/vmlinux.lds.S b/arch/s390/boot/compressed/vmlinux.lds.S
new file mode 100644
index 000000000000..d80f79d8dd9c
--- /dev/null
+++ b/arch/s390/boot/compressed/vmlinux.lds.S
@@ -0,0 +1,55 @@
+#include <asm-generic/vmlinux.lds.h>
+
+#ifdef CONFIG_64BIT
+OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
+OUTPUT_ARCH(s390:64-bit)
+#else
+OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
+OUTPUT_ARCH(s390)
+#endif
+
+ENTRY(startup)
+
+SECTIONS
+{
+ /* Be careful parts of head_64.S assume startup_32 is at
+ * address 0.
+ */
+ . = 0;
+ .head.text : {
+ _head = . ;
+ HEAD_TEXT
+ _ehead = . ;
+ }
+ .rodata.compressed : {
+ *(.rodata.compressed)
+ }
+ .text : {
+ _text = .; /* Text */
+ *(.text)
+ *(.text.*)
+ _etext = . ;
+ }
+ .rodata : {
+ _rodata = . ;
+ *(.rodata) /* read-only data */
+ *(.rodata.*)
+ _erodata = . ;
+ }
+ .data : {
+ _data = . ;
+ *(.data)
+ *(.data.*)
+ _edata = . ;
+ }
+ . = ALIGN(256);
+ .bss : {
+ _bss = . ;
+ *(.bss)
+ *(.bss.*)
+ *(COMMON)
+ . = ALIGN(8); /* For convenience during zeroing */
+ _ebss = .;
+ }
+ _end = .;
+}
diff --git a/arch/s390/boot/compressed/vmlinux.scr b/arch/s390/boot/compressed/vmlinux.scr
new file mode 100644
index 000000000000..f02382ae5c48
--- /dev/null
+++ b/arch/s390/boot/compressed/vmlinux.scr
@@ -0,0 +1,10 @@
+SECTIONS
+{
+ .rodata.compressed : {
+ input_len = .;
+ LONG(input_data_end - input_data) input_data = .;
+ *(.data)
+ output_len = . - 4;
+ input_data_end = .;
+ }
+}
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index b416aa11b91e..7ae71cc56973 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -36,6 +36,13 @@ CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
+CONFIG_HAVE_KERNEL_GZIP=y
+CONFIG_HAVE_KERNEL_BZIP2=y
+CONFIG_HAVE_KERNEL_LZMA=y
+CONFIG_KERNEL_GZIP=y
+# CONFIG_KERNEL_BZIP2 is not set
+# CONFIG_KERNEL_LZMA is not set
+# CONFIG_KERNEL_LZO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
index 2b92d501425f..87cf523192e9 100644
--- a/arch/s390/hypfs/hypfs_diag.c
+++ b/arch/s390/hypfs/hypfs_diag.c
@@ -488,7 +488,7 @@ out:
static int diag224(void *ptr)
{
- int rc = -ENOTSUPP;
+ int rc = -EOPNOTSUPP;
asm volatile(
" diag %1,%2,0x224\n"
@@ -507,7 +507,7 @@ static int diag224_get_name_table(void)
return -ENOMEM;
if (diag224(diag224_cpu_names)) {
kfree(diag224_cpu_names);
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
EBCASC(diag224_cpu_names + 16, (*diag224_cpu_names + 1) * 16);
return 0;
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 2a113d6a7dfd..451bfbb9db3d 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -18,8 +18,6 @@
#define ATOMIC_INIT(i) { (i) }
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
#define __CS_LOOP(ptr, op_val, op_string) ({ \
int old_val, new_val; \
asm volatile( \
@@ -35,26 +33,6 @@
new_val; \
})
-#else /* __GNUC__ */
-
-#define __CS_LOOP(ptr, op_val, op_string) ({ \
- int old_val, new_val; \
- asm volatile( \
- " l %0,0(%3)\n" \
- "0: lr %1,%0\n" \
- op_string " %1,%4\n" \
- " cs %0,%1,0(%3)\n" \
- " jl 0b" \
- : "=&d" (old_val), "=&d" (new_val), \
- "=m" (((atomic_t *)(ptr))->counter) \
- : "a" (ptr), "d" (op_val), \
- "m" (((atomic_t *)(ptr))->counter) \
- : "cc", "memory"); \
- new_val; \
-})
-
-#endif /* __GNUC__ */
-
static inline int atomic_read(const atomic_t *v)
{
barrier();
@@ -101,19 +79,11 @@ static inline void atomic_set_mask(unsigned long mask, atomic_t *v)
static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
{
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
asm volatile(
" cs %0,%2,%1"
: "+d" (old), "=Q" (v->counter)
: "d" (new), "Q" (v->counter)
: "cc", "memory");
-#else /* __GNUC__ */
- asm volatile(
- " cs %0,%3,0(%2)"
- : "+d" (old), "=m" (v->counter)
- : "a" (v), "d" (new), "m" (v->counter)
- : "cc", "memory");
-#endif /* __GNUC__ */
return old;
}
@@ -140,8 +110,6 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
#ifdef CONFIG_64BIT
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
#define __CSG_LOOP(ptr, op_val, op_string) ({ \
long long old_val, new_val; \
asm volatile( \
@@ -157,26 +125,6 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
new_val; \
})
-#else /* __GNUC__ */
-
-#define __CSG_LOOP(ptr, op_val, op_string) ({ \
- long long old_val, new_val; \
- asm volatile( \
- " lg %0,0(%3)\n" \
- "0: lgr %1,%0\n" \
- op_string " %1,%4\n" \
- " csg %0,%1,0(%3)\n" \
- " jl 0b" \
- : "=&d" (old_val), "=&d" (new_val), \
- "=m" (((atomic_t *)(ptr))->counter) \
- : "a" (ptr), "d" (op_val), \
- "m" (((atomic_t *)(ptr))->counter) \
- : "cc", "memory"); \
- new_val; \
-})
-
-#endif /* __GNUC__ */
-
static inline long long atomic64_read(const atomic64_t *v)
{
barrier();
@@ -214,19 +162,11 @@ static inline void atomic64_set_mask(unsigned long mask, atomic64_t *v)
static inline long long atomic64_cmpxchg(atomic64_t *v,
long long old, long long new)
{
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
asm volatile(
" csg %0,%2,%1"
: "+d" (old), "=Q" (v->counter)
: "d" (new), "Q" (v->counter)
: "cc", "memory");
-#else /* __GNUC__ */
- asm volatile(
- " csg %0,%3,0(%2)"
- : "+d" (old), "=m" (v->counter)
- : "a" (v), "d" (new), "m" (v->counter)
- : "cc", "memory");
-#endif /* __GNUC__ */
return old;
}
@@ -243,10 +183,8 @@ static inline long long atomic64_read(const atomic64_t *v)
register_pair rp;
asm volatile(
- " lm %0,%N0,0(%1)"
- : "=&d" (rp)
- : "a" (&v->counter), "m" (v->counter)
- );
+ " lm %0,%N0,%1"
+ : "=&d" (rp) : "Q" (v->counter) );
return rp.pair;
}
@@ -255,10 +193,8 @@ static inline void atomic64_set(atomic64_t *v, long long i)
register_pair rp = {.pair = i};
asm volatile(
- " stm %1,%N1,0(%2)"
- : "=m" (v->counter)
- : "d" (rp), "a" (&v->counter)
- );
+ " stm %1,%N1,%0"
+ : "=Q" (v->counter) : "d" (rp) );
}
static inline long long atomic64_xchg(atomic64_t *v, long long new)
@@ -267,11 +203,11 @@ static inline long long atomic64_xchg(atomic64_t *v, long long new)
register_pair rp_old;
asm volatile(
- " lm %0,%N0,0(%2)\n"
- "0: cds %0,%3,0(%2)\n"
+ " lm %0,%N0,%1\n"
+ "0: cds %0,%2,%1\n"
" jl 0b\n"
- : "=&d" (rp_old), "+m" (v->counter)
- : "a" (&v->counter), "d" (rp_new)
+ : "=&d" (rp_old), "=Q" (v->counter)
+ : "d" (rp_new), "Q" (v->counter)
: "cc");
return rp_old.pair;
}
@@ -283,9 +219,9 @@ static inline long long atomic64_cmpxchg(atomic64_t *v,
register_pair rp_new = {.pair = new};
asm volatile(
- " cds %0,%3,0(%2)"
- : "+&d" (rp_old), "+m" (v->counter)
- : "a" (&v->counter), "d" (rp_new)
+ " cds %0,%2,%1"
+ : "+&d" (rp_old), "=Q" (v->counter)
+ : "d" (rp_new), "Q" (v->counter)
: "cc");
return rp_old.pair;
}
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index b30606f6d523..2e05972c5085 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -71,8 +71,6 @@ extern const char _sb_findmap[];
#define __BITOPS_AND "nr"
#define __BITOPS_XOR "xr"
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string) \
asm volatile( \
" l %0,%2\n" \
@@ -85,22 +83,6 @@ extern const char _sb_findmap[];
: "d" (__val), "Q" (*(unsigned long *) __addr) \
: "cc");
-#else /* __GNUC__ */
-
-#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string) \
- asm volatile( \
- " l %0,0(%4)\n" \
- "0: lr %1,%0\n" \
- __op_string " %1,%3\n" \
- " cs %0,%1,0(%4)\n" \
- " jl 0b" \
- : "=&d" (__old), "=&d" (__new), \
- "=m" (*(unsigned long *) __addr) \
- : "d" (__val), "a" (__addr), \
- "m" (*(unsigned long *) __addr) : "cc");
-
-#endif /* __GNUC__ */
-
#else /* __s390x__ */
#define __BITOPS_ALIGN 7
@@ -109,8 +91,6 @@ extern const char _sb_findmap[];
#define __BITOPS_AND "ngr"
#define __BITOPS_XOR "xgr"
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string) \
asm volatile( \
" lg %0,%2\n" \
@@ -123,23 +103,6 @@ extern const char _sb_findmap[];
: "d" (__val), "Q" (*(unsigned long *) __addr) \
: "cc");
-#else /* __GNUC__ */
-
-#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string) \
- asm volatile( \
- " lg %0,0(%4)\n" \
- "0: lgr %1,%0\n" \
- __op_string " %1,%3\n" \
- " csg %0,%1,0(%4)\n" \
- " jl 0b" \
- : "=&d" (__old), "=&d" (__new), \
- "=m" (*(unsigned long *) __addr) \
- : "d" (__val), "a" (__addr), \
- "m" (*(unsigned long *) __addr) : "cc");
-
-
-#endif /* __GNUC__ */
-
#endif /* __s390x__ */
#define __BITOPS_WORDS(bits) (((bits)+__BITOPS_WORDSIZE-1)/__BITOPS_WORDSIZE)
@@ -261,9 +224,8 @@ static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr)
addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
asm volatile(
- " oc 0(1,%1),0(%2)"
- : "=m" (*(char *) addr) : "a" (addr),
- "a" (_oi_bitmap + (nr & 7)), "m" (*(char *) addr) : "cc" );
+ " oc %O0(1,%R0),%1"
+ : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" );
}
static inline void
@@ -290,9 +252,8 @@ __clear_bit(unsigned long nr, volatile unsigned long *ptr)
addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
asm volatile(
- " nc 0(1,%1),0(%2)"
- : "=m" (*(char *) addr) : "a" (addr),
- "a" (_ni_bitmap + (nr & 7)), "m" (*(char *) addr) : "cc");
+ " nc %O0(1,%R0),%1"
+ : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) : "cc" );
}
static inline void
@@ -318,9 +279,8 @@ static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr)
addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
asm volatile(
- " xc 0(1,%1),0(%2)"
- : "=m" (*(char *) addr) : "a" (addr),
- "a" (_oi_bitmap + (nr & 7)), "m" (*(char *) addr) : "cc" );
+ " xc %O0(1,%R0),%1"
+ : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" );
}
static inline void
@@ -349,10 +309,9 @@ test_and_set_bit_simple(unsigned long nr, volatile unsigned long *ptr)
addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
ch = *(unsigned char *) addr;
asm volatile(
- " oc 0(1,%1),0(%2)"
- : "=m" (*(char *) addr)
- : "a" (addr), "a" (_oi_bitmap + (nr & 7)),
- "m" (*(char *) addr) : "cc", "memory");
+ " oc %O0(1,%R0),%1"
+ : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7])
+ : "cc", "memory");
return (ch >> (nr & 7)) & 1;
}
#define __test_and_set_bit(X,Y) test_and_set_bit_simple(X,Y)
@@ -369,10 +328,9 @@ test_and_clear_bit_simple(unsigned long nr, volatile unsigned long *ptr)
addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
ch = *(unsigned char *) addr;
asm volatile(
- " nc 0(1,%1),0(%2)"
- : "=m" (*(char *) addr)
- : "a" (addr), "a" (_ni_bitmap + (nr & 7)),
- "m" (*(char *) addr) : "cc", "memory");
+ " nc %O0(1,%R0),%1"
+ : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7])
+ : "cc", "memory");
return (ch >> (nr & 7)) & 1;
}
#define __test_and_clear_bit(X,Y) test_and_clear_bit_simple(X,Y)
@@ -389,10 +347,9 @@ test_and_change_bit_simple(unsigned long nr, volatile unsigned long *ptr)
addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
ch = *(unsigned char *) addr;
asm volatile(
- " xc 0(1,%1),0(%2)"
- : "=m" (*(char *) addr)
- : "a" (addr), "a" (_oi_bitmap + (nr & 7)),
- "m" (*(char *) addr) : "cc", "memory");
+ " xc %O0(1,%R0),%1"
+ : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7])
+ : "cc", "memory");
return (ch >> (nr & 7)) & 1;
}
#define __test_and_change_bit(X,Y) test_and_change_bit_simple(X,Y)
@@ -591,11 +548,11 @@ static inline unsigned long __load_ulong_le(const unsigned long *p,
p = (unsigned long *)((unsigned long) p + offset);
#ifndef __s390x__
asm volatile(
- " ic %0,0(%1)\n"
- " icm %0,2,1(%1)\n"
- " icm %0,4,2(%1)\n"
- " icm %0,8,3(%1)"
- : "=&d" (word) : "a" (p), "m" (*p) : "cc");
+ " ic %0,%O1(%R1)\n"
+ " icm %0,2,%O1+1(%R1)\n"
+ " icm %0,4,%O1+2(%R1)\n"
+ " icm %0,8,%O1+3(%R1)"
+ : "=&d" (word) : "Q" (*p) : "cc");
#else
asm volatile(
" lrvg %0,%1"
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index b1066b9fb5f8..9beeb9db9b23 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -5,12 +5,6 @@
#ifdef CONFIG_BUG
-#ifdef CONFIG_64BIT
-#define S390_LONG ".quad"
-#else
-#define S390_LONG ".long"
-#endif
-
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define __EMIT_BUG(x) do { \
@@ -21,7 +15,7 @@
"2: .asciz \""__FILE__"\"\n" \
".previous\n" \
".section __bug_table,\"a\"\n" \
- "3:\t" S390_LONG "\t1b,2b\n" \
+ "3: .long 1b-3b,2b-3b\n" \
" .short %0,%1\n" \
" .org 3b+%2\n" \
".previous\n" \
@@ -37,7 +31,7 @@
"0: j 0b+2\n" \
"1:\n" \
".section __bug_table,\"a\"\n" \
- "2:\t" S390_LONG "\t1b\n" \
+ "2: .long 1b-2b\n" \
" .short %0\n" \
" .org 2b+%1\n" \
".previous\n" \
diff --git a/arch/s390/include/asm/crw.h b/arch/s390/include/asm/crw.h
index 2185a6d619d3..749a97e61bea 100644
--- a/arch/s390/include/asm/crw.h
+++ b/arch/s390/include/asm/crw.h
@@ -32,6 +32,7 @@ typedef void (*crw_handler_t)(struct crw *, struct crw *, int);
extern int crw_register_handler(int rsc, crw_handler_t handler);
extern void crw_unregister_handler(int rsc);
extern void crw_handle_channel_report(void);
+void crw_wait_for_channel_report(void);
#define NR_RSCS 16
diff --git a/arch/s390/include/asm/etr.h b/arch/s390/include/asm/etr.h
index 80ef58c61970..538e1b36a726 100644
--- a/arch/s390/include/asm/etr.h
+++ b/arch/s390/include/asm/etr.h
@@ -145,11 +145,11 @@ static inline int etr_setr(struct etr_eacr *ctrl)
int rc = -ENOSYS;
asm volatile(
- " .insn s,0xb2160000,0(%2)\n"
+ " .insn s,0xb2160000,%1\n"
"0: la %0,0\n"
"1:\n"
EX_TABLE(0b,1b)
- : "+d" (rc) : "m" (*ctrl), "a" (ctrl));
+ : "+d" (rc) : "Q" (*ctrl));
return rc;
}
@@ -159,11 +159,11 @@ static inline int etr_stetr(struct etr_aib *aib)
int rc = -ENOSYS;
asm volatile(
- " .insn s,0xb2170000,0(%2)\n"
+ " .insn s,0xb2170000,%1\n"
"0: la %0,0\n"
"1:\n"
EX_TABLE(0b,1b)
- : "+d" (rc) : "m" (*aib), "a" (aib));
+ : "+d" (rc) : "Q" (*aib));
return rc;
}
@@ -174,11 +174,11 @@ static inline int etr_steai(struct etr_aib *aib, unsigned int func)
int rc = -ENOSYS;
asm volatile(
- " .insn s,0xb2b30000,0(%2)\n"
+ " .insn s,0xb2b30000,%1\n"
"0: la %0,0\n"
"1:\n"
EX_TABLE(0b,1b)
- : "+d" (rc) : "m" (*aib), "a" (aib), "d" (reg0));
+ : "+d" (rc) : "Q" (*aib), "d" (reg0));
return rc;
}
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
index c2fb432f576a..15b3ac253898 100644
--- a/arch/s390/include/asm/irqflags.h
+++ b/arch/s390/include/asm/irqflags.h
@@ -8,8 +8,6 @@
#include <linux/types.h>
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
/* store then or system mask. */
#define __raw_local_irq_stosm(__or) \
({ \
@@ -36,40 +34,6 @@
asm volatile("ssm %0" : : "Q" (__mask) : "memory"); \
})
-#else /* __GNUC__ */
-
-/* store then or system mask. */
-#define __raw_local_irq_stosm(__or) \
-({ \
- unsigned long __mask; \
- asm volatile( \
- " stosm 0(%1),%2" \
- : "=m" (__mask) \
- : "a" (&__mask), "i" (__or) : "memory"); \
- __mask; \
-})
-
-/* store then and system mask. */
-#define __raw_local_irq_stnsm(__and) \
-({ \
- unsigned long __mask; \
- asm volatile( \
- " stnsm 0(%1),%2" \
- : "=m" (__mask) \
- : "a" (&__mask), "i" (__and) : "memory"); \
- __mask; \
-})
-
-/* set system mask. */
-#define __raw_local_irq_ssm(__mask) \
-({ \
- asm volatile( \
- " ssm 0(%0)" \
- : : "a" (&__mask), "m" (__mask) : "memory"); \
-})
-
-#endif /* __GNUC__ */
-
/* interrupt control.. */
static inline unsigned long raw_local_irq_enable(void)
{
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index c25dfac7dd76..05527c040b7a 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -1,141 +1,16 @@
/*
- * include/asm-s390/lowcore.h
- *
- * S390 version
- * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Hartmut Penner (hp@de.ibm.com),
- * Martin Schwidefsky (schwidefsky@de.ibm.com),
- * Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ * Copyright IBM Corp. 1999,2010
+ * Author(s): Hartmut Penner <hp@de.ibm.com>,
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ * Denis Joseph Barrow,
*/
#ifndef _ASM_S390_LOWCORE_H
#define _ASM_S390_LOWCORE_H
-#define __LC_IPL_PARMBLOCK_PTR 0x0014
-#define __LC_EXT_PARAMS 0x0080
-#define __LC_CPU_ADDRESS 0x0084
-#define __LC_EXT_INT_CODE 0x0086
-
-#define __LC_SVC_ILC 0x0088
-#define __LC_SVC_INT_CODE 0x008a
-#define __LC_PGM_ILC 0x008c
-#define __LC_PGM_INT_CODE 0x008e
-
-#define __LC_PER_ATMID 0x0096
-#define __LC_PER_ADDRESS 0x0098
-#define __LC_PER_ACCESS_ID 0x00a1
-#define __LC_AR_MODE_ID 0x00a3
-
-#define __LC_SUBCHANNEL_ID 0x00b8
-#define __LC_SUBCHANNEL_NR 0x00ba
-#define __LC_IO_INT_PARM 0x00bc
-#define __LC_IO_INT_WORD 0x00c0
-#define __LC_STFL_FAC_LIST 0x00c8
-#define __LC_MCCK_CODE 0x00e8
-
-#define __LC_DUMP_REIPL 0x0e00
-
-#ifndef __s390x__
-#define __LC_EXT_OLD_PSW 0x0018
-#define __LC_SVC_OLD_PSW 0x0020
-#define __LC_PGM_OLD_PSW 0x0028
-#define __LC_MCK_OLD_PSW 0x0030
-#define __LC_IO_OLD_PSW 0x0038
-#define __LC_EXT_NEW_PSW 0x0058
-#define __LC_SVC_NEW_PSW 0x0060
-#define __LC_PGM_NEW_PSW 0x0068
-#define __LC_MCK_NEW_PSW 0x0070
-#define __LC_IO_NEW_PSW 0x0078
-#define __LC_SAVE_AREA 0x0200
-#define __LC_RETURN_PSW 0x0240
-#define __LC_RETURN_MCCK_PSW 0x0248
-#define __LC_SYNC_ENTER_TIMER 0x0250
-#define __LC_ASYNC_ENTER_TIMER 0x0258
-#define __LC_EXIT_TIMER 0x0260
-#define __LC_USER_TIMER 0x0268
-#define __LC_SYSTEM_TIMER 0x0270
-#define __LC_STEAL_TIMER 0x0278
-#define __LC_LAST_UPDATE_TIMER 0x0280
-#define __LC_LAST_UPDATE_CLOCK 0x0288
-#define __LC_CURRENT 0x0290
-#define __LC_THREAD_INFO 0x0294
-#define __LC_KERNEL_STACK 0x0298
-#define __LC_ASYNC_STACK 0x029c
-#define __LC_PANIC_STACK 0x02a0
-#define __LC_KERNEL_ASCE 0x02a4
-#define __LC_USER_ASCE 0x02a8
-#define __LC_USER_EXEC_ASCE 0x02ac
-#define __LC_CPUID 0x02b0
-#define __LC_INT_CLOCK 0x02c8
-#define __LC_MACHINE_FLAGS 0x02d8
-#define __LC_FTRACE_FUNC 0x02dc
-#define __LC_IRB 0x0300
-#define __LC_PFAULT_INTPARM 0x0080
-#define __LC_CPU_TIMER_SAVE_AREA 0x00d8
-#define __LC_CLOCK_COMP_SAVE_AREA 0x00e0
-#define __LC_PSW_SAVE_AREA 0x0100
-#define __LC_PREFIX_SAVE_AREA 0x0108
-#define __LC_AREGS_SAVE_AREA 0x0120
-#define __LC_FPREGS_SAVE_AREA 0x0160
-#define __LC_GPREGS_SAVE_AREA 0x0180
-#define __LC_CREGS_SAVE_AREA 0x01c0
-#else /* __s390x__ */
-#define __LC_LAST_BREAK 0x0110
-#define __LC_EXT_OLD_PSW 0x0130
-#define __LC_SVC_OLD_PSW 0x0140
-#define __LC_PGM_OLD_PSW 0x0150
-#define __LC_MCK_OLD_PSW 0x0160
-#define __LC_IO_OLD_PSW 0x0170
-#define __LC_RESTART_PSW 0x01a0
-#define __LC_EXT_NEW_PSW 0x01b0
-#define __LC_SVC_NEW_PSW 0x01c0
-#define __LC_PGM_NEW_PSW 0x01d0
-#define __LC_MCK_NEW_PSW 0x01e0
-#define __LC_IO_NEW_PSW 0x01f0
-#define __LC_SAVE_AREA 0x0200
-#define __LC_RETURN_PSW 0x0280
-#define __LC_RETURN_MCCK_PSW 0x0290
-#define __LC_SYNC_ENTER_TIMER 0x02a0
-#define __LC_ASYNC_ENTER_TIMER 0x02a8
-#define __LC_EXIT_TIMER 0x02b0
-#define __LC_USER_TIMER 0x02b8
-#define __LC_SYSTEM_TIMER 0x02c0
-#define __LC_STEAL_TIMER 0x02c8
-#define __LC_LAST_UPDATE_TIMER 0x02d0
-#define __LC_LAST_UPDATE_CLOCK 0x02d8
-#define __LC_CURRENT 0x02e0
-#define __LC_THREAD_INFO 0x02e8
-#define __LC_KERNEL_STACK 0x02f0
-#define __LC_ASYNC_STACK 0x02f8
-#define __LC_PANIC_STACK 0x0300
-#define __LC_KERNEL_ASCE 0x0308
-#define __LC_USER_ASCE 0x0310
-#define __LC_USER_EXEC_ASCE 0x0318
-#define __LC_CPUID 0x0320
-#define __LC_INT_CLOCK 0x0340
-#define __LC_VDSO_PER_CPU 0x0350
-#define __LC_MACHINE_FLAGS 0x0358
-#define __LC_FTRACE_FUNC 0x0360
-#define __LC_IRB 0x0380
-#define __LC_PASTE 0x03c0
-#define __LC_PFAULT_INTPARM 0x11b8
-#define __LC_FPREGS_SAVE_AREA 0x1200
-#define __LC_GPREGS_SAVE_AREA 0x1280
-#define __LC_PSW_SAVE_AREA 0x1300
-#define __LC_PREFIX_SAVE_AREA 0x1318
-#define __LC_FP_CREG_SAVE_AREA 0x131c
-#define __LC_TODREG_SAVE_AREA 0x1324
-#define __LC_CPU_TIMER_SAVE_AREA 0x1328
-#define __LC_CLOCK_COMP_SAVE_AREA 0x1331
-#define __LC_AREGS_SAVE_AREA 0x1340
-#define __LC_CREGS_SAVE_AREA 0x1380
-#endif /* __s390x__ */
-
-#ifndef __ASSEMBLY__
-
-#include <asm/cpu.h>
-#include <asm/ptrace.h>
#include <linux/types.h>
+#include <asm/ptrace.h>
+#include <asm/cpu.h>
void restart_int_handler(void);
void ext_int_handler(void);
@@ -144,7 +19,12 @@ void pgm_check_handler(void);
void mcck_int_handler(void);
void io_int_handler(void);
-struct save_area_s390 {
+#ifdef CONFIG_32BIT
+
+#define LC_ORDER 0
+#define LC_PAGES 1
+
+struct save_area {
u32 ext_save;
u64 timer;
u64 clk_cmp;
@@ -156,54 +36,13 @@ struct save_area_s390 {
u64 fp_regs[4];
u32 gp_regs[16];
u32 ctrl_regs[16];
-} __attribute__((packed));
+} __packed;
-struct save_area_s390x {
- u64 fp_regs[16];
- u64 gp_regs[16];
- u8 psw[16];
- u8 pad1[8];
- u32 pref_reg;
- u32 fp_ctrl_reg;
- u8 pad2[4];
- u32 tod_reg;
- u64 timer;
- u64 clk_cmp;
- u8 pad3[8];
- u32 acc_regs[16];
- u64 ctrl_regs[16];
-} __attribute__((packed));
-
-union save_area {
- struct save_area_s390 s390;
- struct save_area_s390x s390x;
-};
-
-#define SAVE_AREA_BASE_S390 0xd4
-#define SAVE_AREA_BASE_S390X 0x1200
-
-#ifndef __s390x__
-#define SAVE_AREA_SIZE sizeof(struct save_area_s390)
-#define SAVE_AREA_BASE SAVE_AREA_BASE_S390
-#else
-#define SAVE_AREA_SIZE sizeof(struct save_area_s390x)
-#define SAVE_AREA_BASE SAVE_AREA_BASE_S390X
-#endif
-
-#ifndef __s390x__
-#define LC_ORDER 0
-#else
-#define LC_ORDER 1
-#endif
-
-#define LC_PAGES (1UL << LC_ORDER)
-
-struct _lowcore
-{
-#ifndef __s390x__
- /* 0x0000 - 0x01ff: defined by architecture */
+struct _lowcore {
psw_t restart_psw; /* 0x0000 */
- __u32 ccw2[4]; /* 0x0008 */
+ psw_t restart_old_psw; /* 0x0008 */
+ __u8 pad_0x0010[0x0014-0x0010]; /* 0x0010 */
+ __u32 ipl_parmblock_ptr; /* 0x0014 */
psw_t external_old_psw; /* 0x0018 */
psw_t svc_old_psw; /* 0x0020 */
psw_t program_old_psw; /* 0x0028 */
@@ -229,7 +68,9 @@ struct _lowcore
__u32 monitor_code; /* 0x009c */
__u8 exc_access_id; /* 0x00a0 */
__u8 per_access_id; /* 0x00a1 */
- __u8 pad_0x00a2[0x00b8-0x00a2]; /* 0x00a2 */
+ __u8 op_access_id; /* 0x00a2 */
+ __u8 ar_access_id; /* 0x00a3 */
+ __u8 pad_0x00a4[0x00b8-0x00a4]; /* 0x00a4 */
__u16 subchannel_id; /* 0x00b8 */
__u16 subchannel_nr; /* 0x00ba */
__u32 io_int_parm; /* 0x00bc */
@@ -245,8 +86,9 @@ struct _lowcore
__u32 external_damage_code; /* 0x00f4 */
__u32 failing_storage_address; /* 0x00f8 */
__u8 pad_0x00fc[0x0100-0x00fc]; /* 0x00fc */
- __u32 st_status_fixed_logout[4]; /* 0x0100 */
- __u8 pad_0x0110[0x0120-0x0110]; /* 0x0110 */
+ psw_t psw_save_area; /* 0x0100 */
+ __u32 prefixreg_save_area; /* 0x0108 */
+ __u8 pad_0x010c[0x0120-0x010c]; /* 0x010c */
/* CPU register save area: defined by architecture */
__u32 access_regs_save_area[16]; /* 0x0120 */
@@ -310,10 +152,32 @@ struct _lowcore
/* Align to the top 1k of prefix area */
__u8 pad_0x0e08[0x1000-0x0e08]; /* 0x0e08 */
-#else /* !__s390x__ */
- /* 0x0000 - 0x01ff: defined by architecture */
- __u32 ccw1[2]; /* 0x0000 */
- __u32 ccw2[4]; /* 0x0008 */
+} __packed;
+
+#else /* CONFIG_32BIT */
+
+#define LC_ORDER 1
+#define LC_PAGES 2
+
+struct save_area {
+ u64 fp_regs[16];
+ u64 gp_regs[16];
+ u8 psw[16];
+ u8 pad1[8];
+ u32 pref_reg;
+ u32 fp_ctrl_reg;
+ u8 pad2[4];
+ u32 tod_reg;
+ u64 timer;
+ u64 clk_cmp;
+ u8 pad3[8];
+ u32 acc_regs[16];
+ u64 ctrl_regs[16];
+} __packed;
+
+struct _lowcore {
+ __u8 pad_0x0000[0x0014-0x0000]; /* 0x0000 */
+ __u32 ipl_parmblock_ptr; /* 0x0014 */
__u8 pad_0x0018[0x0080-0x0018]; /* 0x0018 */
__u32 ext_params; /* 0x0080 */
__u16 cpu_addr; /* 0x0084 */
@@ -344,7 +208,9 @@ struct _lowcore
__u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */
__u32 external_damage_code; /* 0x00f4 */
addr_t failing_storage_address; /* 0x00f8 */
- __u8 pad_0x0100[0x0120-0x0100]; /* 0x0100 */
+ __u8 pad_0x0100[0x0110-0x0100]; /* 0x0100 */
+ __u64 breaking_event_addr; /* 0x0110 */
+ __u8 pad_0x0118[0x0120-0x0118]; /* 0x0118 */
psw_t restart_old_psw; /* 0x0120 */
psw_t external_old_psw; /* 0x0130 */
psw_t svc_old_psw; /* 0x0140 */
@@ -425,7 +291,7 @@ struct _lowcore
/* CPU register save area: defined by architecture */
__u64 floating_pt_save_area[16]; /* 0x1200 */
__u64 gpregs_save_area[16]; /* 0x1280 */
- __u32 st_status_fixed_logout[4]; /* 0x1300 */
+ psw_t psw_save_area; /* 0x1300 */
__u8 pad_0x1310[0x1318-0x1310]; /* 0x1310 */
__u32 prefixreg_save_area; /* 0x1318 */
__u32 fpt_creg_save_area; /* 0x131c */
@@ -439,10 +305,12 @@ struct _lowcore
/* align to the top of the prefix area */
__u8 pad_0x1400[0x2000-0x1400]; /* 0x1400 */
-#endif /* !__s390x__ */
-} __attribute__((packed)); /* End structure*/
+} __packed;
+
+#endif /* CONFIG_32BIT */
#define S390_lowcore (*((struct _lowcore *) 0))
+
extern struct _lowcore *lowcore_ptr[];
static inline void set_prefix(__u32 address)
@@ -458,6 +326,4 @@ static inline __u32 store_prefix(void)
return address;
}
-#endif
-
-#endif
+#endif /* _ASM_S390_LOWCORE_H */
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 5e9daf5d7f22..af650fb47206 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -107,9 +107,6 @@ typedef pte_t *pgtable_t;
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
-/* default storage key used for all pages */
-extern unsigned int default_storage_key;
-
static inline void
page_set_storage_key(unsigned long addr, unsigned int skey)
{
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index b42715458312..73e259834e10 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -28,7 +28,7 @@
static inline void get_cpu_id(struct cpuid *ptr)
{
- asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
+ asm volatile("stidp %0" : "=Q" (*ptr));
}
extern void s390_adjust_jiffies(void);
@@ -184,9 +184,9 @@ static inline void psw_set_key(unsigned int key)
static inline void __load_psw(psw_t psw)
{
#ifndef __s390x__
- asm volatile("lpsw 0(%0)" : : "a" (&psw), "m" (psw) : "cc");
+ asm volatile("lpsw %0" : : "Q" (psw) : "cc");
#else
- asm volatile("lpswe 0(%0)" : : "a" (&psw), "m" (psw) : "cc");
+ asm volatile("lpswe %0" : : "Q" (psw) : "cc");
#endif
}
@@ -206,17 +206,17 @@ static inline void __load_psw_mask (unsigned long mask)
asm volatile(
" basr %0,0\n"
"0: ahi %0,1f-0b\n"
- " st %0,4(%1)\n"
- " lpsw 0(%1)\n"
+ " st %0,%O1+4(%R1)\n"
+ " lpsw %1\n"
"1:"
- : "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc");
+ : "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
#else /* __s390x__ */
asm volatile(
" larl %0,1f\n"
- " stg %0,8(%1)\n"
- " lpswe 0(%1)\n"
+ " stg %0,%O1+8(%R1)\n"
+ " lpswe %1\n"
"1:"
- : "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc");
+ : "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
#endif /* __s390x__ */
}
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 79d849f014f0..c666bfe5e984 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -13,7 +13,8 @@
#include <asm/cio.h>
#include <asm/ccwdev.h>
-#define QDIO_MAX_QUEUES_PER_IRQ 32
+/* only use 4 queues to save some cachelines */
+#define QDIO_MAX_QUEUES_PER_IRQ 4
#define QDIO_MAX_BUFFERS_PER_Q 128
#define QDIO_MAX_BUFFERS_MASK (QDIO_MAX_BUFFERS_PER_Q - 1)
#define QDIO_MAX_ELEMENTS_PER_BUFFER 16
diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h
index 9d2a17971805..423fdda2322d 100644
--- a/arch/s390/include/asm/rwsem.h
+++ b/arch/s390/include/asm/rwsem.h
@@ -124,21 +124,21 @@ static inline void __down_read(struct rw_semaphore *sem)
asm volatile(
#ifndef __s390x__
- " l %0,0(%3)\n"
+ " l %0,%2\n"
"0: lr %1,%0\n"
- " ahi %1,%5\n"
- " cs %0,%1,0(%3)\n"
+ " ahi %1,%4\n"
+ " cs %0,%1,%2\n"
" jl 0b"
#else /* __s390x__ */
- " lg %0,0(%3)\n"
+ " lg %0,%2\n"
"0: lgr %1,%0\n"
- " aghi %1,%5\n"
- " csg %0,%1,0(%3)\n"
+ " aghi %1,%4\n"
+ " csg %0,%1,%2\n"
" jl 0b"
#endif /* __s390x__ */
- : "=&d" (old), "=&d" (new), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count),
- "i" (RWSEM_ACTIVE_READ_BIAS) : "cc", "memory");
+ : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+ : "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
+ : "cc", "memory");
if (old < 0)
rwsem_down_read_failed(sem);
}
@@ -152,25 +152,25 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
asm volatile(
#ifndef __s390x__
- " l %0,0(%3)\n"
+ " l %0,%2\n"
"0: ltr %1,%0\n"
" jm 1f\n"
- " ahi %1,%5\n"
- " cs %0,%1,0(%3)\n"
+ " ahi %1,%4\n"
+ " cs %0,%1,%2\n"
" jl 0b\n"
"1:"
#else /* __s390x__ */
- " lg %0,0(%3)\n"
+ " lg %0,%2\n"
"0: ltgr %1,%0\n"
" jm 1f\n"
- " aghi %1,%5\n"
- " csg %0,%1,0(%3)\n"
+ " aghi %1,%4\n"
+ " csg %0,%1,%2\n"
" jl 0b\n"
"1:"
#endif /* __s390x__ */
- : "=&d" (old), "=&d" (new), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count),
- "i" (RWSEM_ACTIVE_READ_BIAS) : "cc", "memory");
+ : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+ : "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
+ : "cc", "memory");
return old >= 0 ? 1 : 0;
}
@@ -184,20 +184,20 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
tmp = RWSEM_ACTIVE_WRITE_BIAS;
asm volatile(
#ifndef __s390x__
- " l %0,0(%3)\n"
+ " l %0,%2\n"
"0: lr %1,%0\n"
- " a %1,%5\n"
- " cs %0,%1,0(%3)\n"
+ " a %1,%4\n"
+ " cs %0,%1,%2\n"
" jl 0b"
#else /* __s390x__ */
- " lg %0,0(%3)\n"
+ " lg %0,%2\n"
"0: lgr %1,%0\n"
- " ag %1,%5\n"
- " csg %0,%1,0(%3)\n"
+ " ag %1,%4\n"
+ " csg %0,%1,%2\n"
" jl 0b"
#endif /* __s390x__ */
- : "=&d" (old), "=&d" (new), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+ : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+ : "Q" (sem->count), "m" (tmp)
: "cc", "memory");
if (old != 0)
rwsem_down_write_failed(sem);
@@ -217,22 +217,22 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
asm volatile(
#ifndef __s390x__
- " l %0,0(%2)\n"
+ " l %0,%1\n"
"0: ltr %0,%0\n"
" jnz 1f\n"
- " cs %0,%4,0(%2)\n"
+ " cs %0,%3,%1\n"
" jl 0b\n"
#else /* __s390x__ */
- " lg %0,0(%2)\n"
+ " lg %0,%1\n"
"0: ltgr %0,%0\n"
" jnz 1f\n"
- " csg %0,%4,0(%2)\n"
+ " csg %0,%3,%1\n"
" jl 0b\n"
#endif /* __s390x__ */
"1:"
- : "=&d" (old), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count),
- "d" (RWSEM_ACTIVE_WRITE_BIAS) : "cc", "memory");
+ : "=&d" (old), "=Q" (sem->count)
+ : "Q" (sem->count), "d" (RWSEM_ACTIVE_WRITE_BIAS)
+ : "cc", "memory");
return (old == RWSEM_UNLOCKED_VALUE) ? 1 : 0;
}
@@ -245,21 +245,20 @@ static inline void __up_read(struct rw_semaphore *sem)
asm volatile(
#ifndef __s390x__
- " l %0,0(%3)\n"
+ " l %0,%2\n"
"0: lr %1,%0\n"
- " ahi %1,%5\n"
- " cs %0,%1,0(%3)\n"
+ " ahi %1,%4\n"
+ " cs %0,%1,%2\n"
" jl 0b"
#else /* __s390x__ */
- " lg %0,0(%3)\n"
+ " lg %0,%2\n"
"0: lgr %1,%0\n"
- " aghi %1,%5\n"
- " csg %0,%1,0(%3)\n"
+ " aghi %1,%4\n"
+ " csg %0,%1,%2\n"
" jl 0b"
#endif /* __s390x__ */
- : "=&d" (old), "=&d" (new), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count),
- "i" (-RWSEM_ACTIVE_READ_BIAS)
+ : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+ : "Q" (sem->count), "i" (-RWSEM_ACTIVE_READ_BIAS)
: "cc", "memory");
if (new < 0)
if ((new & RWSEM_ACTIVE_MASK) == 0)
@@ -276,20 +275,20 @@ static inline void __up_write(struct rw_semaphore *sem)
tmp = -RWSEM_ACTIVE_WRITE_BIAS;
asm volatile(
#ifndef __s390x__
- " l %0,0(%3)\n"
+ " l %0,%2\n"
"0: lr %1,%0\n"
- " a %1,%5\n"
- " cs %0,%1,0(%3)\n"
+ " a %1,%4\n"
+ " cs %0,%1,%2\n"
" jl 0b"
#else /* __s390x__ */
- " lg %0,0(%3)\n"
+ " lg %0,%2\n"
"0: lgr %1,%0\n"
- " ag %1,%5\n"
- " csg %0,%1,0(%3)\n"
+ " ag %1,%4\n"
+ " csg %0,%1,%2\n"
" jl 0b"
#endif /* __s390x__ */
- : "=&d" (old), "=&d" (new), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+ : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+ : "Q" (sem->count), "m" (tmp)
: "cc", "memory");
if (new < 0)
if ((new & RWSEM_ACTIVE_MASK) == 0)
@@ -306,20 +305,20 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
tmp = -RWSEM_WAITING_BIAS;
asm volatile(
#ifndef __s390x__
- " l %0,0(%3)\n"
+ " l %0,%2\n"
"0: lr %1,%0\n"
- " a %1,%5\n"
- " cs %0,%1,0(%3)\n"
+ " a %1,%4\n"
+ " cs %0,%1,%2\n"
" jl 0b"
#else /* __s390x__ */
- " lg %0,0(%3)\n"
+ " lg %0,%2\n"
"0: lgr %1,%0\n"
- " ag %1,%5\n"
- " csg %0,%1,0(%3)\n"
+ " ag %1,%4\n"
+ " csg %0,%1,%2\n"
" jl 0b"
#endif /* __s390x__ */
- : "=&d" (old), "=&d" (new), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+ : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+ : "Q" (sem->count), "m" (tmp)
: "cc", "memory");
if (new > 1)
rwsem_downgrade_wake(sem);
@@ -334,20 +333,20 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
asm volatile(
#ifndef __s390x__
- " l %0,0(%3)\n"
+ " l %0,%2\n"
"0: lr %1,%0\n"
- " ar %1,%5\n"
- " cs %0,%1,0(%3)\n"
+ " ar %1,%4\n"
+ " cs %0,%1,%2\n"
" jl 0b"
#else /* __s390x__ */
- " lg %0,0(%3)\n"
+ " lg %0,%2\n"
"0: lgr %1,%0\n"
- " agr %1,%5\n"
- " csg %0,%1,0(%3)\n"
+ " agr %1,%4\n"
+ " csg %0,%1,%2\n"
" jl 0b"
#endif /* __s390x__ */
- : "=&d" (old), "=&d" (new), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count), "d" (delta)
+ : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+ : "Q" (sem->count), "d" (delta)
: "cc", "memory");
}
@@ -360,20 +359,20 @@ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
asm volatile(
#ifndef __s390x__
- " l %0,0(%3)\n"
+ " l %0,%2\n"
"0: lr %1,%0\n"
- " ar %1,%5\n"
- " cs %0,%1,0(%3)\n"
+ " ar %1,%4\n"
+ " cs %0,%1,%2\n"
" jl 0b"
#else /* __s390x__ */
- " lg %0,0(%3)\n"
+ " lg %0,%2\n"
"0: lgr %1,%0\n"
- " agr %1,%5\n"
- " csg %0,%1,0(%3)\n"
+ " agr %1,%4\n"
+ " csg %0,%1,%2\n"
" jl 0b"
#endif /* __s390x__ */
- : "=&d" (old), "=&d" (new), "=m" (sem->count)
- : "a" (&sem->count), "m" (sem->count), "d" (delta)
+ : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+ : "Q" (sem->count), "d" (delta)
: "cc", "memory");
return new;
}
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 52a779c337e8..9ab6bd3a65d1 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -14,14 +14,14 @@
#ifdef __KERNEL__
-#include <asm/lowcore.h>
-#include <asm/types.h>
-
#define PARMAREA 0x10400
#define MEMORY_CHUNKS 256
#ifndef __ASSEMBLY__
+#include <asm/lowcore.h>
+#include <asm/types.h>
+
#ifndef __s390x__
#define IPL_DEVICE (*(unsigned long *) (0x10404))
#define INITRD_START (*(unsigned long *) (0x1040C))
@@ -71,9 +71,12 @@ extern unsigned int user_mode;
#define MACHINE_FLAG_KVM (1UL << 9)
#define MACHINE_FLAG_HPAGE (1UL << 10)
#define MACHINE_FLAG_PFMF (1UL << 11)
+#define MACHINE_FLAG_LPAR (1UL << 12)
#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
+#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
+
#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
#ifndef __s390x__
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index f72d611f7e13..e3bffd4e2d66 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -1,24 +1,19 @@
/*
- * include/asm-s390/sigp.h
+ * Routines and structures for signalling other processors.
*
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
- * Martin Schwidefsky (schwidefsky@de.ibm.com)
- * Heiko Carstens (heiko.carstens@de.ibm.com)
- *
- * sigp.h by D.J. Barrow (c) IBM 1999
- * contains routines / structures for signalling other S/390 processors in an
- * SMP configuration.
+ * Copyright IBM Corp. 1999,2010
+ * Author(s): Denis Joseph Barrow,
+ * Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ * Heiko Carstens <heiko.carstens@de.ibm.com>,
*/
-#ifndef __SIGP__
-#define __SIGP__
+#ifndef __ASM_SIGP_H
+#define __ASM_SIGP_H
#include <asm/system.h>
-/* get real cpu address from logical cpu number */
-extern int __cpu_logical_map[];
+/* Get real cpu address from logical cpu number. */
+extern unsigned short __cpu_logical_map[];
static inline int cpu_logical_map(int cpu)
{
@@ -29,107 +24,108 @@ static inline int cpu_logical_map(int cpu)
#endif
}
-typedef enum
-{
- sigp_unassigned=0x0,
- sigp_sense,
- sigp_external_call,
- sigp_emergency_signal,
- sigp_start,
- sigp_stop,
- sigp_restart,
- sigp_unassigned1,
- sigp_unassigned2,
- sigp_stop_and_store_status,
- sigp_unassigned3,
- sigp_initial_cpu_reset,
- sigp_cpu_reset,
- sigp_set_prefix,
- sigp_store_status_at_address,
- sigp_store_extended_status_at_address
-} sigp_order_code;
-
-typedef __u32 sigp_status_word;
-
-typedef enum
-{
- sigp_order_code_accepted=0,
- sigp_status_stored,
- sigp_busy,
- sigp_not_operational
-} sigp_ccode;
-
+enum {
+ sigp_sense = 1,
+ sigp_external_call = 2,
+ sigp_emergency_signal = 3,
+ sigp_start = 4,
+ sigp_stop = 5,
+ sigp_restart = 6,
+ sigp_stop_and_store_status = 9,
+ sigp_initial_cpu_reset = 11,
+ sigp_cpu_reset = 12,
+ sigp_set_prefix = 13,
+ sigp_store_status_at_address = 14,
+ sigp_store_extended_status_at_address = 15,
+ sigp_set_architecture = 18,
+ sigp_conditional_emergency_signal = 19,
+ sigp_sense_running = 21,
+};
+
+enum {
+ sigp_order_code_accepted = 0,
+ sigp_status_stored = 1,
+ sigp_busy = 2,
+ sigp_not_operational = 3,
+};
/*
- * Definitions for the external call
+ * Definitions for external call.
*/
-
-/* 'Bit' signals, asynchronous */
-typedef enum
-{
- ec_schedule=0,
+enum {
+ ec_schedule = 0,
ec_call_function,
ec_call_function_single,
- ec_bit_last
-} ec_bit_sig;
+};
/*
- * Signal processor
+ * Signal processor.
*/
-static inline sigp_ccode
-signal_processor(__u16 cpu_addr, sigp_order_code order_code)
+static inline int raw_sigp(u16 cpu, int order)
{
register unsigned long reg1 asm ("1") = 0;
- sigp_ccode ccode;
+ int ccode;
asm volatile(
" sigp %1,%2,0(%3)\n"
" ipm %0\n"
" srl %0,28\n"
: "=d" (ccode)
- : "d" (reg1), "d" (cpu_logical_map(cpu_addr)),
- "a" (order_code) : "cc" , "memory");
+ : "d" (reg1), "d" (cpu),
+ "a" (order) : "cc" , "memory");
return ccode;
}
/*
- * Signal processor with parameter
+ * Signal processor with parameter.
*/
-static inline sigp_ccode
-signal_processor_p(__u32 parameter, __u16 cpu_addr, sigp_order_code order_code)
+static inline int raw_sigp_p(u32 parameter, u16 cpu, int order)
{
register unsigned int reg1 asm ("1") = parameter;
- sigp_ccode ccode;
+ int ccode;
asm volatile(
" sigp %1,%2,0(%3)\n"
" ipm %0\n"
" srl %0,28\n"
: "=d" (ccode)
- : "d" (reg1), "d" (cpu_logical_map(cpu_addr)),
- "a" (order_code) : "cc" , "memory");
+ : "d" (reg1), "d" (cpu),
+ "a" (order) : "cc" , "memory");
return ccode;
}
/*
- * Signal processor with parameter and return status
+ * Signal processor with parameter and return status.
*/
-static inline sigp_ccode
-signal_processor_ps(__u32 *statusptr, __u32 parameter, __u16 cpu_addr,
- sigp_order_code order_code)
+static inline int raw_sigp_ps(u32 *status, u32 parm, u16 cpu, int order)
{
- register unsigned int reg1 asm ("1") = parameter;
- sigp_ccode ccode;
+ register unsigned int reg1 asm ("1") = parm;
+ int ccode;
asm volatile(
" sigp %1,%2,0(%3)\n"
" ipm %0\n"
" srl %0,28\n"
: "=d" (ccode), "+d" (reg1)
- : "d" (cpu_logical_map(cpu_addr)), "a" (order_code)
+ : "d" (cpu), "a" (order)
: "cc" , "memory");
- *statusptr = reg1;
+ *status = reg1;
return ccode;
}
-#endif /* __SIGP__ */
+static inline int sigp(int cpu, int order)
+{
+ return raw_sigp(cpu_logical_map(cpu), order);
+}
+
+static inline int sigp_p(u32 parameter, int cpu, int order)
+{
+ return raw_sigp_p(parameter, cpu_logical_map(cpu), order);
+}
+
+static inline int sigp_ps(u32 *status, u32 parm, int cpu, int order)
+{
+ return raw_sigp_ps(status, parm, cpu_logical_map(cpu), order);
+}
+
+#endif /* __ASM_SIGP_H */
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index 2ab1141eeb50..edc03cb9cd79 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -29,7 +29,43 @@ extern int smp_cpu_polarization[];
extern void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
-extern union save_area *zfcpdump_save_areas[NR_CPUS + 1];
+extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
+
+extern void smp_switch_to_ipl_cpu(void (*func)(void *), void *);
+extern void smp_switch_to_cpu(void (*)(void *), void *, unsigned long sp,
+ int from, int to);
+extern void smp_restart_cpu(void);
+
+/*
+ * returns 1 if (virtual) cpu is scheduled
+ * returns 0 otherwise
+ */
+static inline int smp_vcpu_scheduled(int cpu)
+{
+ u32 status;
+
+ switch (sigp_ps(&status, 0, cpu, sigp_sense_running)) {
+ case sigp_status_stored:
+ /* Check for running status */
+ if (status & 0x400)
+ return 0;
+ break;
+ case sigp_not_operational:
+ return 0;
+ default:
+ break;
+ }
+ return 1;
+}
+
+#else /* CONFIG_SMP */
+
+static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
+{
+ func(data);
+}
+
+#define smp_vcpu_scheduled (1)
#endif /* CONFIG_SMP */
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index a587907d77f3..56612fc8186e 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -13,8 +13,6 @@
#include <linux/smp.h>
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
static inline int
_raw_compare_and_swap(volatile unsigned int *lock,
unsigned int old, unsigned int new)
@@ -27,22 +25,6 @@ _raw_compare_and_swap(volatile unsigned int *lock,
return old;
}
-#else /* __GNUC__ */
-
-static inline int
-_raw_compare_and_swap(volatile unsigned int *lock,
- unsigned int old, unsigned int new)
-{
- asm volatile(
- " cs %0,%3,0(%4)"
- : "=d" (old), "=m" (*lock)
- : "0" (old), "d" (new), "a" (lock), "m" (*lock)
- : "cc", "memory" );
- return old;
-}
-
-#endif /* __GNUC__ */
-
/*
* Simple spin lock operations. There are two variants, one clears IRQ's
* on the local processor, one does not.
diff --git a/arch/s390/include/asm/swab.h b/arch/s390/include/asm/swab.h
index eb18dc1f327b..6bdee21c077e 100644
--- a/arch/s390/include/asm/swab.h
+++ b/arch/s390/include/asm/swab.h
@@ -47,11 +47,11 @@ static inline __u32 __arch_swab32p(const __u32 *x)
asm volatile(
#ifndef __s390x__
- " icm %0,8,3(%1)\n"
- " icm %0,4,2(%1)\n"
- " icm %0,2,1(%1)\n"
- " ic %0,0(%1)"
- : "=&d" (result) : "a" (x), "m" (*x) : "cc");
+ " icm %0,8,%O1+3(%R1)\n"
+ " icm %0,4,%O1+2(%R1)\n"
+ " icm %0,2,%O1+1(%R1)\n"
+ " ic %0,%1"
+ : "=&d" (result) : "Q" (*x) : "cc");
#else /* __s390x__ */
" lrv %0,%1"
: "=d" (result) : "m" (*x));
@@ -77,9 +77,9 @@ static inline __u16 __arch_swab16p(const __u16 *x)
asm volatile(
#ifndef __s390x__
- " icm %0,2,1(%1)\n"
- " ic %0,0(%1)\n"
- : "=&d" (result) : "a" (x), "m" (*x) : "cc");
+ " icm %0,2,%O+1(%R1)\n"
+ " ic %0,%1\n"
+ : "=&d" (result) : "Q" (*x) : "cc");
#else /* __s390x__ */
" lrvh %0,%1"
: "=d" (result) : "m" (*x));
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index 9d70057d828c..22bdb2a0ee5f 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -87,7 +87,8 @@ struct sysinfo_2_2_2 {
struct sysinfo_3_2_2 {
char reserved_0[31];
- unsigned char count;
+ unsigned char :4;
+ unsigned char count:4;
struct {
char reserved_0[4];
unsigned short cpus_total;
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 379661d2f81a..67ee6c3c6bb3 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -24,65 +24,65 @@ extern struct task_struct *__switch_to(void *, void *);
static inline void save_fp_regs(s390_fp_regs *fpregs)
{
asm volatile(
- " std 0,8(%1)\n"
- " std 2,24(%1)\n"
- " std 4,40(%1)\n"
- " std 6,56(%1)"
- : "=m" (*fpregs) : "a" (fpregs), "m" (*fpregs) : "memory");
+ " std 0,%O0+8(%R0)\n"
+ " std 2,%O0+24(%R0)\n"
+ " std 4,%O0+40(%R0)\n"
+ " std 6,%O0+56(%R0)"
+ : "=Q" (*fpregs) : "Q" (*fpregs));
if (!MACHINE_HAS_IEEE)
return;
asm volatile(
- " stfpc 0(%1)\n"
- " std 1,16(%1)\n"
- " std 3,32(%1)\n"
- " std 5,48(%1)\n"
- " std 7,64(%1)\n"
- " std 8,72(%1)\n"
- " std 9,80(%1)\n"
- " std 10,88(%1)\n"
- " std 11,96(%1)\n"
- " std 12,104(%1)\n"
- " std 13,112(%1)\n"
- " std 14,120(%1)\n"
- " std 15,128(%1)\n"
- : "=m" (*fpregs) : "a" (fpregs), "m" (*fpregs) : "memory");
+ " stfpc %0\n"
+ " std 1,%O0+16(%R0)\n"
+ " std 3,%O0+32(%R0)\n"
+ " std 5,%O0+48(%R0)\n"
+ " std 7,%O0+64(%R0)\n"
+ " std 8,%O0+72(%R0)\n"
+ " std 9,%O0+80(%R0)\n"
+ " std 10,%O0+88(%R0)\n"
+ " std 11,%O0+96(%R0)\n"
+ " std 12,%O0+104(%R0)\n"
+ " std 13,%O0+112(%R0)\n"
+ " std 14,%O0+120(%R0)\n"
+ " std 15,%O0+128(%R0)\n"
+ : "=Q" (*fpregs) : "Q" (*fpregs));
}
static inline void restore_fp_regs(s390_fp_regs *fpregs)
{
asm volatile(
- " ld 0,8(%0)\n"
- " ld 2,24(%0)\n"
- " ld 4,40(%0)\n"
- " ld 6,56(%0)"
- : : "a" (fpregs), "m" (*fpregs));
+ " ld 0,%O0+8(%R0)\n"
+ " ld 2,%O0+24(%R0)\n"
+ " ld 4,%O0+40(%R0)\n"
+ " ld 6,%O0+56(%R0)"
+ : : "Q" (*fpregs));
if (!MACHINE_HAS_IEEE)
return;
asm volatile(
- " lfpc 0(%0)\n"
- " ld 1,16(%0)\n"
- " ld 3,32(%0)\n"
- " ld 5,48(%0)\n"
- " ld 7,64(%0)\n"
- " ld 8,72(%0)\n"
- " ld 9,80(%0)\n"
- " ld 10,88(%0)\n"
- " ld 11,96(%0)\n"
- " ld 12,104(%0)\n"
- " ld 13,112(%0)\n"
- " ld 14,120(%0)\n"
- " ld 15,128(%0)\n"
- : : "a" (fpregs), "m" (*fpregs));
+ " lfpc %0\n"
+ " ld 1,%O0+16(%R0)\n"
+ " ld 3,%O0+32(%R0)\n"
+ " ld 5,%O0+48(%R0)\n"
+ " ld 7,%O0+64(%R0)\n"
+ " ld 8,%O0+72(%R0)\n"
+ " ld 9,%O0+80(%R0)\n"
+ " ld 10,%O0+88(%R0)\n"
+ " ld 11,%O0+96(%R0)\n"
+ " ld 12,%O0+104(%R0)\n"
+ " ld 13,%O0+112(%R0)\n"
+ " ld 14,%O0+120(%R0)\n"
+ " ld 15,%O0+128(%R0)\n"
+ : : "Q" (*fpregs));
}
static inline void save_access_regs(unsigned int *acrs)
{
- asm volatile("stam 0,15,0(%0)" : : "a" (acrs) : "memory");
+ asm volatile("stam 0,15,%0" : "=Q" (*acrs));
}
static inline void restore_access_regs(unsigned int *acrs)
{
- asm volatile("lam 0,15,0(%0)" : : "a" (acrs));
+ asm volatile("lam 0,15,%0" : : "Q" (*acrs));
}
#define switch_to(prev,next,last) do { \
@@ -139,48 +139,48 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
shift = (3 ^ (addr & 3)) << 3;
addr ^= addr & 3;
asm volatile(
- " l %0,0(%4)\n"
+ " l %0,%4\n"
"0: lr 0,%0\n"
" nr 0,%3\n"
" or 0,%2\n"
- " cs %0,0,0(%4)\n"
+ " cs %0,0,%4\n"
" jl 0b\n"
- : "=&d" (old), "=m" (*(int *) addr)
- : "d" (x << shift), "d" (~(255 << shift)), "a" (addr),
- "m" (*(int *) addr) : "memory", "cc", "0");
+ : "=&d" (old), "=Q" (*(int *) addr)
+ : "d" (x << shift), "d" (~(255 << shift)),
+ "Q" (*(int *) addr) : "memory", "cc", "0");
return old >> shift;
case 2:
addr = (unsigned long) ptr;
shift = (2 ^ (addr & 2)) << 3;
addr ^= addr & 2;
asm volatile(
- " l %0,0(%4)\n"
+ " l %0,%4\n"
"0: lr 0,%0\n"
" nr 0,%3\n"
" or 0,%2\n"
- " cs %0,0,0(%4)\n"
+ " cs %0,0,%4\n"
" jl 0b\n"
- : "=&d" (old), "=m" (*(int *) addr)
- : "d" (x << shift), "d" (~(65535 << shift)), "a" (addr),
- "m" (*(int *) addr) : "memory", "cc", "0");
+ : "=&d" (old), "=Q" (*(int *) addr)
+ : "d" (x << shift), "d" (~(65535 << shift)),
+ "Q" (*(int *) addr) : "memory", "cc", "0");
return old >> shift;
case 4:
asm volatile(
- " l %0,0(%3)\n"
- "0: cs %0,%2,0(%3)\n"
+ " l %0,%3\n"
+ "0: cs %0,%2,%3\n"
" jl 0b\n"
- : "=&d" (old), "=m" (*(int *) ptr)
- : "d" (x), "a" (ptr), "m" (*(int *) ptr)
+ : "=&d" (old), "=Q" (*(int *) ptr)
+ : "d" (x), "Q" (*(int *) ptr)
: "memory", "cc");
return old;
#ifdef __s390x__
case 8:
asm volatile(
- " lg %0,0(%3)\n"
- "0: csg %0,%2,0(%3)\n"
+ " lg %0,%3\n"
+ "0: csg %0,%2,%3\n"
" jl 0b\n"
: "=&d" (old), "=m" (*(long *) ptr)
- : "d" (x), "a" (ptr), "m" (*(long *) ptr)
+ : "d" (x), "Q" (*(long *) ptr)
: "memory", "cc");
return old;
#endif /* __s390x__ */
@@ -215,20 +215,20 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
shift = (3 ^ (addr & 3)) << 3;
addr ^= addr & 3;
asm volatile(
- " l %0,0(%4)\n"
+ " l %0,%2\n"
"0: nr %0,%5\n"
" lr %1,%0\n"
" or %0,%2\n"
" or %1,%3\n"
- " cs %0,%1,0(%4)\n"
+ " cs %0,%1,%2\n"
" jnl 1f\n"
" xr %1,%0\n"
" nr %1,%5\n"
" jnz 0b\n"
"1:"
- : "=&d" (prev), "=&d" (tmp)
- : "d" (old << shift), "d" (new << shift), "a" (ptr),
- "d" (~(255 << shift))
+ : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
+ : "d" (old << shift), "d" (new << shift),
+ "d" (~(255 << shift)), "Q" (*(int *) ptr)
: "memory", "cc");
return prev >> shift;
case 2:
@@ -236,33 +236,35 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
shift = (2 ^ (addr & 2)) << 3;
addr ^= addr & 2;
asm volatile(
- " l %0,0(%4)\n"
+ " l %0,%2\n"
"0: nr %0,%5\n"
" lr %1,%0\n"
" or %0,%2\n"
" or %1,%3\n"
- " cs %0,%1,0(%4)\n"
+ " cs %0,%1,%2\n"
" jnl 1f\n"
" xr %1,%0\n"
" nr %1,%5\n"
" jnz 0b\n"
"1:"
- : "=&d" (prev), "=&d" (tmp)
- : "d" (old << shift), "d" (new << shift), "a" (ptr),
- "d" (~(65535 << shift))
+ : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
+ : "d" (old << shift), "d" (new << shift),
+ "d" (~(65535 << shift)), "Q" (*(int *) ptr)
: "memory", "cc");
return prev >> shift;
case 4:
asm volatile(
- " cs %0,%2,0(%3)\n"
- : "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
+ " cs %0,%3,%1\n"
+ : "=&d" (prev), "=Q" (*(int *) ptr)
+ : "0" (old), "d" (new), "Q" (*(int *) ptr)
: "memory", "cc");
return prev;
#ifdef __s390x__
case 8:
asm volatile(
- " csg %0,%2,0(%3)\n"
- : "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
+ " csg %0,%3,%1\n"
+ : "=&d" (prev), "=Q" (*(long *) ptr)
+ : "0" (old), "d" (new), "Q" (*(long *) ptr)
: "memory", "cc");
return prev;
#endif /* __s390x__ */
@@ -302,17 +304,17 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
#define __ctl_load(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
asm volatile( \
- " lctlg %1,%2,0(%0)\n" \
- : : "a" (&array), "i" (low), "i" (high), \
- "m" (*(addrtype *)(&array))); \
+ " lctlg %1,%2,%0\n" \
+ : : "Q" (*(addrtype *)(&array)), \
+ "i" (low), "i" (high)); \
})
#define __ctl_store(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
asm volatile( \
- " stctg %2,%3,0(%1)\n" \
- : "=m" (*(addrtype *)(&array)) \
- : "a" (&array), "i" (low), "i" (high)); \
+ " stctg %1,%2,%0\n" \
+ : "=Q" (*(addrtype *)(&array)) \
+ : "i" (low), "i" (high)); \
})
#else /* __s390x__ */
@@ -320,17 +322,17 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
#define __ctl_load(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
asm volatile( \
- " lctl %1,%2,0(%0)\n" \
- : : "a" (&array), "i" (low), "i" (high), \
- "m" (*(addrtype *)(&array))); \
+ " lctl %1,%2,%0\n" \
+ : : "Q" (*(addrtype *)(&array)), \
+ "i" (low), "i" (high)); \
})
#define __ctl_store(array, low, high) ({ \
typedef struct { char _[sizeof(array)]; } addrtype; \
asm volatile( \
- " stctl %2,%3,0(%1)\n" \
- : "=m" (*(addrtype *)(&array)) \
- : "a" (&array), "i" (low), "i" (high)); \
+ " stctl %1,%2,%0\n" \
+ : "=Q" (*(addrtype *)(&array)) \
+ : "i" (low), "i" (high)); \
})
#endif /* __s390x__ */
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 66069e736842..34f0873d6525 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -73,7 +73,7 @@ struct thread_info {
/* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void)
{
- return (struct thread_info *)((*(unsigned long *) __LC_KERNEL_STACK)-THREAD_SIZE);
+ return (struct thread_info *)(S390_lowcore.kernel_stack - THREAD_SIZE);
}
#define THREAD_SIZE_ORDER THREAD_ORDER
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 68d9fea34b4b..f174bdaa6b59 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -20,10 +20,10 @@ static inline int set_clock(__u64 time)
int cc;
asm volatile(
- " sck 0(%2)\n"
+ " sck %1\n"
" ipm %0\n"
" srl %0,28\n"
- : "=d" (cc) : "m" (time), "a" (&time) : "cc");
+ : "=d" (cc) : "Q" (time) : "cc");
return cc;
}
@@ -32,21 +32,21 @@ static inline int store_clock(__u64 *time)
int cc;
asm volatile(
- " stck 0(%2)\n"
+ " stck %1\n"
" ipm %0\n"
" srl %0,28\n"
- : "=d" (cc), "=m" (*time) : "a" (time) : "cc");
+ : "=d" (cc), "=Q" (*time) : : "cc");
return cc;
}
static inline void set_clock_comparator(__u64 time)
{
- asm volatile("sckc 0(%1)" : : "m" (time), "a" (&time));
+ asm volatile("sckc %0" : : "Q" (time));
}
static inline void store_clock_comparator(__u64 *time)
{
- asm volatile("stckc 0(%1)" : "=m" (*time) : "a" (time));
+ asm volatile("stckc %0" : "=Q" (*time));
}
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
@@ -57,11 +57,7 @@ static inline unsigned long long get_clock (void)
{
unsigned long long clk;
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
asm volatile("stck %0" : "=Q" (clk) : : "cc");
-#else /* __GNUC__ */
- asm volatile("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc");
-#endif /* __GNUC__ */
return clk;
}
@@ -69,13 +65,7 @@ static inline unsigned long long get_clock_xt(void)
{
unsigned char clk[16];
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
asm volatile("stcke %0" : "=Q" (clk) : : "cc");
-#else /* __GNUC__ */
- asm volatile("stcke 0(%1)" : "=m" (clk)
- : "a" (clk) : "cc");
-#endif /* __GNUC__ */
-
return *((unsigned long long *)&clk[1]);
}
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index cbf0a8745bf4..d6b1ed0ec52b 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -265,6 +265,12 @@ __copy_from_user(void *to, const void __user *from, unsigned long n)
return uaccess.copy_from_user(n, from, to);
}
+extern void copy_from_user_overflow(void)
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+__compiletime_warning("copy_from_user() buffer size is not provably correct")
+#endif
+;
+
/**
* copy_from_user: - Copy a block of data from user space.
* @to: Destination address, in kernel space.
@@ -284,7 +290,13 @@ __copy_from_user(void *to, const void __user *from, unsigned long n)
static inline unsigned long __must_check
copy_from_user(void *to, const void __user *from, unsigned long n)
{
+ unsigned int sz = __compiletime_object_size(to);
+
might_fault();
+ if (unlikely(sz != -1 && sz < n)) {
+ copy_from_user_overflow();
+ return n;
+ }
if (access_ok(VERIFY_READ, from, n))
n = __copy_from_user(to, from, n);
else
diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h
index 7bdd7c8ebc91..4a76d9480cce 100644
--- a/arch/s390/include/asm/vdso.h
+++ b/arch/s390/include/asm/vdso.h
@@ -7,7 +7,7 @@
#define VDSO32_LBASE 0
#define VDSO64_LBASE 0
-#define VDSO_VERSION_STRING LINUX_2.6.26
+#define VDSO_VERSION_STRING LINUX_2.6.29
#ifndef __ASSEMBLY__
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 683f6381cc59..64230bc392fa 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -29,9 +29,12 @@ obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o)
obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o)
extra-y += head.o init_task.o vmlinux.lds
+extra-y += $(if $(CONFIG_64BIT),head64.o,head31.o)
obj-$(CONFIG_MODULES) += s390_ksyms.o module.o
obj-$(CONFIG_SMP) += smp.o topology.o
+obj-$(CONFIG_SMP) += $(if $(CONFIG_64BIT),switch_cpu64.o, \
+ switch_cpu.o)
obj-$(CONFIG_HIBERNATION) += suspend.o swsusp_asm64.o
obj-$(CONFIG_AUDIT) += audit.o
compat-obj-$(CONFIG_AUDIT) += compat_audit.o
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 63e46433e81d..08db736dded0 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -4,18 +4,27 @@
* and format the required data.
*/
-#include <linux/sched.h>
+#define ASM_OFFSETS_C
+
#include <linux/kbuild.h>
+#include <linux/sched.h>
#include <asm/vdso.h>
#include <asm/sigp.h>
+/*
+ * Make sure that the compiler is new enough. We want a compiler that
+ * is known to work with the "Q" assembler constraint.
+ */
+#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
+#error Your compiler is too old; please use version 3.3.3 or newer
+#endif
+
int main(void)
{
DEFINE(__THREAD_info, offsetof(struct task_struct, stack));
DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp));
DEFINE(__THREAD_per, offsetof(struct task_struct, thread.per_info));
- DEFINE(__THREAD_mm_segment,
- offsetof(struct task_struct, thread.mm_segment));
+ DEFINE(__THREAD_mm_segment, offsetof(struct task_struct, thread.mm_segment));
BLANK();
DEFINE(__TASK_pid, offsetof(struct task_struct, pid));
BLANK();
@@ -52,18 +61,94 @@ int main(void)
DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available));
- DEFINE(__VDSO_ECTG_BASE,
- offsetof(struct vdso_per_cpu_data, ectg_timer_base));
- DEFINE(__VDSO_ECTG_USER,
- offsetof(struct vdso_per_cpu_data, ectg_user_time));
+ DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base));
+ DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time));
/* constants used by the vdso */
DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
+ BLANK();
/* constants for SIGP */
DEFINE(__SIGP_STOP, sigp_stop);
DEFINE(__SIGP_RESTART, sigp_restart);
DEFINE(__SIGP_SENSE, sigp_sense);
DEFINE(__SIGP_INITIAL_CPU_RESET, sigp_initial_cpu_reset);
+ BLANK();
+ /* lowcore offsets */
+ DEFINE(__LC_EXT_PARAMS, offsetof(struct _lowcore, ext_params));
+ DEFINE(__LC_CPU_ADDRESS, offsetof(struct _lowcore, cpu_addr));
+ DEFINE(__LC_EXT_INT_CODE, offsetof(struct _lowcore, ext_int_code));
+ DEFINE(__LC_SVC_ILC, offsetof(struct _lowcore, svc_ilc));
+ DEFINE(__LC_SVC_INT_CODE, offsetof(struct _lowcore, svc_code));
+ DEFINE(__LC_PGM_ILC, offsetof(struct _lowcore, pgm_ilc));
+ DEFINE(__LC_PGM_INT_CODE, offsetof(struct _lowcore, pgm_code));
+ DEFINE(__LC_PER_ATMID, offsetof(struct _lowcore, per_perc_atmid));
+ DEFINE(__LC_PER_ADDRESS, offsetof(struct _lowcore, per_address));
+ DEFINE(__LC_PER_ACCESS_ID, offsetof(struct _lowcore, per_access_id));
+ DEFINE(__LC_AR_MODE_ID, offsetof(struct _lowcore, ar_access_id));
+ DEFINE(__LC_SUBCHANNEL_ID, offsetof(struct _lowcore, subchannel_id));
+ DEFINE(__LC_SUBCHANNEL_NR, offsetof(struct _lowcore, subchannel_nr));
+ DEFINE(__LC_IO_INT_PARM, offsetof(struct _lowcore, io_int_parm));
+ DEFINE(__LC_IO_INT_WORD, offsetof(struct _lowcore, io_int_word));
+ DEFINE(__LC_STFL_FAC_LIST, offsetof(struct _lowcore, stfl_fac_list));
+ DEFINE(__LC_MCCK_CODE, offsetof(struct _lowcore, mcck_interruption_code));
+ DEFINE(__LC_DUMP_REIPL, offsetof(struct _lowcore, ipib));
+ BLANK();
+ DEFINE(__LC_RST_NEW_PSW, offsetof(struct _lowcore, restart_psw));
+ DEFINE(__LC_RST_OLD_PSW, offsetof(struct _lowcore, restart_old_psw));
+ DEFINE(__LC_EXT_OLD_PSW, offsetof(struct _lowcore, external_old_psw));
+ DEFINE(__LC_SVC_OLD_PSW, offsetof(struct _lowcore, svc_old_psw));
+ DEFINE(__LC_PGM_OLD_PSW, offsetof(struct _lowcore, program_old_psw));
+ DEFINE(__LC_MCK_OLD_PSW, offsetof(struct _lowcore, mcck_old_psw));
+ DEFINE(__LC_IO_OLD_PSW, offsetof(struct _lowcore, io_old_psw));
+ DEFINE(__LC_EXT_NEW_PSW, offsetof(struct _lowcore, external_new_psw));
+ DEFINE(__LC_SVC_NEW_PSW, offsetof(struct _lowcore, svc_new_psw));
+ DEFINE(__LC_PGM_NEW_PSW, offsetof(struct _lowcore, program_new_psw));
+ DEFINE(__LC_MCK_NEW_PSW, offsetof(struct _lowcore, mcck_new_psw));
+ DEFINE(__LC_IO_NEW_PSW, offsetof(struct _lowcore, io_new_psw));
+ DEFINE(__LC_SAVE_AREA, offsetof(struct _lowcore, save_area));
+ DEFINE(__LC_RETURN_PSW, offsetof(struct _lowcore, return_psw));
+ DEFINE(__LC_RETURN_MCCK_PSW, offsetof(struct _lowcore, return_mcck_psw));
+ DEFINE(__LC_SYNC_ENTER_TIMER, offsetof(struct _lowcore, sync_enter_timer));
+ DEFINE(__LC_ASYNC_ENTER_TIMER, offsetof(struct _lowcore, async_enter_timer));
+ DEFINE(__LC_EXIT_TIMER, offsetof(struct _lowcore, exit_timer));
+ DEFINE(__LC_USER_TIMER, offsetof(struct _lowcore, user_timer));
+ DEFINE(__LC_SYSTEM_TIMER, offsetof(struct _lowcore, system_timer));
+ DEFINE(__LC_STEAL_TIMER, offsetof(struct _lowcore, steal_timer));
+ DEFINE(__LC_LAST_UPDATE_TIMER, offsetof(struct _lowcore, last_update_timer));
+ DEFINE(__LC_LAST_UPDATE_CLOCK, offsetof(struct _lowcore, last_update_clock));
+ DEFINE(__LC_CURRENT, offsetof(struct _lowcore, current_task));
+ DEFINE(__LC_THREAD_INFO, offsetof(struct _lowcore, thread_info));
+ DEFINE(__LC_KERNEL_STACK, offsetof(struct _lowcore, kernel_stack));
+ DEFINE(__LC_ASYNC_STACK, offsetof(struct _lowcore, async_stack));
+ DEFINE(__LC_PANIC_STACK, offsetof(struct _lowcore, panic_stack));
+ DEFINE(__LC_KERNEL_ASCE, offsetof(struct _lowcore, kernel_asce));
+ DEFINE(__LC_USER_ASCE, offsetof(struct _lowcore, user_asce));
+ DEFINE(__LC_USER_EXEC_ASCE, offsetof(struct _lowcore, user_exec_asce));
+ DEFINE(__LC_CPUID, offsetof(struct _lowcore, cpu_id));
+ DEFINE(__LC_INT_CLOCK, offsetof(struct _lowcore, int_clock));
+ DEFINE(__LC_MACHINE_FLAGS, offsetof(struct _lowcore, machine_flags));
+ DEFINE(__LC_FTRACE_FUNC, offsetof(struct _lowcore, ftrace_func));
+ DEFINE(__LC_IRB, offsetof(struct _lowcore, irb));
+ DEFINE(__LC_CPU_TIMER_SAVE_AREA, offsetof(struct _lowcore, cpu_timer_save_area));
+ DEFINE(__LC_CLOCK_COMP_SAVE_AREA, offsetof(struct _lowcore, clock_comp_save_area));
+ DEFINE(__LC_PSW_SAVE_AREA, offsetof(struct _lowcore, psw_save_area));
+ DEFINE(__LC_PREFIX_SAVE_AREA, offsetof(struct _lowcore, prefixreg_save_area));
+ DEFINE(__LC_AREGS_SAVE_AREA, offsetof(struct _lowcore, access_regs_save_area));
+ DEFINE(__LC_FPREGS_SAVE_AREA, offsetof(struct _lowcore, floating_pt_save_area));
+ DEFINE(__LC_GPREGS_SAVE_AREA, offsetof(struct _lowcore, gpregs_save_area));
+ DEFINE(__LC_CREGS_SAVE_AREA, offsetof(struct _lowcore, cregs_save_area));
+#ifdef CONFIG_32BIT
+ DEFINE(__LC_PFAULT_INTPARM, offsetof(struct _lowcore, ext_params));
+ DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, extended_save_area_addr));
+#else /* CONFIG_32BIT */
+ DEFINE(__LC_PFAULT_INTPARM, offsetof(struct _lowcore, ext_params2));
+ DEFINE(__LC_EXT_PARAMS2, offsetof(struct _lowcore, ext_params2));
+ DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, floating_pt_save_area));
+ DEFINE(__LC_PASTE, offsetof(struct _lowcore, paste));
+ DEFINE(__LC_FP_CREG_SAVE_AREA, offsetof(struct _lowcore, fpt_creg_save_area));
+ DEFINE(__LC_LAST_BREAK, offsetof(struct _lowcore, breaking_event_addr));
+ DEFINE(__LC_VDSO_PER_CPU, offsetof(struct _lowcore, vdso_per_cpu_data));
+#endif /* CONFIG_32BIT */
return 0;
}
diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S
index dc7e5259770f..15e46ca94335 100644
--- a/arch/s390/kernel/base.S
+++ b/arch/s390/kernel/base.S
@@ -6,8 +6,8 @@
* Michael Holzheu <holzheu@de.ibm.com>
*/
+#include <asm/asm-offsets.h>
#include <asm/ptrace.h>
-#include <asm/lowcore.h>
#ifdef CONFIG_64BIT
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index db943a7ec513..b39b27d68b45 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -86,10 +86,17 @@ enum {
U4_12, /* 4 bit unsigned value starting at 12 */
U4_16, /* 4 bit unsigned value starting at 16 */
U4_20, /* 4 bit unsigned value starting at 20 */
+ U4_32, /* 4 bit unsigned value starting at 32 */
U8_8, /* 8 bit unsigned value starting at 8 */
U8_16, /* 8 bit unsigned value starting at 16 */
+ U8_24, /* 8 bit unsigned value starting at 24 */
+ U8_32, /* 8 bit unsigned value starting at 32 */
+ I8_8, /* 8 bit signed value starting at 8 */
+ I8_32, /* 8 bit signed value starting at 32 */
I16_16, /* 16 bit signed value starting at 16 */
+ I16_32, /* 32 bit signed value starting at 16 */
U16_16, /* 16 bit unsigned value starting at 16 */
+ U16_32, /* 32 bit unsigned value starting at 16 */
J16_16, /* PC relative jump offset at 16 */
J32_16, /* PC relative long offset at 16 */
I32_16, /* 32 bit signed value starting at 16 */
@@ -104,21 +111,37 @@ enum {
*/
enum {
INSTR_INVALID,
- INSTR_E, INSTR_RIE_RRP, INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU,
- INSTR_RIL_UP, INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
+ INSTR_E,
+ INSTR_RIE_R0IU, INSTR_RIE_R0UU, INSTR_RIE_RRP, INSTR_RIE_RRPU,
+ INSTR_RIE_RRUUU, INSTR_RIE_RUPI, INSTR_RIE_RUPU,
+ INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU, INSTR_RIL_UP,
+ INSTR_RIS_R0RDU, INSTR_RIS_R0UU, INSTR_RIS_RURDI, INSTR_RIS_RURDU,
+ INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
INSTR_RRE_00, INSTR_RRE_0R, INSTR_RRE_AA, INSTR_RRE_AR, INSTR_RRE_F0,
- INSTR_RRE_FF, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF, INSTR_RRE_RR,
- INSTR_RRE_RR_OPT, INSTR_RRF_F0FF, INSTR_RRF_FUFF, INSTR_RRF_M0RR,
- INSTR_RRF_R0RR, INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF,
+ INSTR_RRE_FF, INSTR_RRE_FR, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF,
+ INSTR_RRE_RR, INSTR_RRE_RR_OPT,
+ INSTR_RRF_0UFF, INSTR_RRF_F0FF, INSTR_RRF_F0FF2, INSTR_RRF_F0FR,
+ INSTR_RRF_FFRU, INSTR_RRF_FUFF, INSTR_RRF_M0RR, INSTR_RRF_R0RR,
+ INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF, INSTR_RRF_U0RR,
+ INSTR_RRF_UUFF, INSTR_RRR_F0FF, INSTR_RRS_RRRDU,
INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR,
- INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD, INSTR_RSI_RRP,
- INSTR_RSL_R0RD, INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD,
- INSTR_RSY_RURD, INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD,
- INSTR_RS_RRRD, INSTR_RS_RURD, INSTR_RXE_FRRD, INSTR_RXE_RRRD,
- INSTR_RXF_FRRDF, INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RX_FRRD,
- INSTR_RX_RRRD, INSTR_RX_URRD, INSTR_SIY_URD, INSTR_SI_URD,
- INSTR_SSE_RDRD, INSTR_SSF_RRDRD, INSTR_SS_L0RDRD, INSTR_SS_LIRDRD,
- INSTR_SS_LLRDRD, INSTR_SS_RRRDRD, INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
+ INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD,
+ INSTR_RSI_RRP,
+ INSTR_RSL_R0RD,
+ INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD, INSTR_RSY_RURD,
+ INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD, INSTR_RS_RRRD,
+ INSTR_RS_RURD,
+ INSTR_RXE_FRRD, INSTR_RXE_RRRD,
+ INSTR_RXF_FRRDF,
+ INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RXY_URRD,
+ INSTR_RX_FRRD, INSTR_RX_RRRD, INSTR_RX_URRD,
+ INSTR_SIL_RDI, INSTR_SIL_RDU,
+ INSTR_SIY_IRD, INSTR_SIY_URD,
+ INSTR_SI_URD,
+ INSTR_SSE_RDRD,
+ INSTR_SSF_RRDRD,
+ INSTR_SS_L0RDRD, INSTR_SS_LIRDRD, INSTR_SS_LLRDRD, INSTR_SS_RRRDRD,
+ INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
INSTR_S_00, INSTR_S_RD,
};
@@ -129,7 +152,7 @@ struct operand {
};
struct insn {
- const char name[5];
+ const char name[6];
unsigned char opfrag;
unsigned char format;
};
@@ -170,11 +193,16 @@ static const struct operand operands[] =
[U4_12] = { 4, 12, 0 },
[U4_16] = { 4, 16, 0 },
[U4_20] = { 4, 20, 0 },
+ [U4_32] = { 4, 32, 0 },
[U8_8] = { 8, 8, 0 },
[U8_16] = { 8, 16, 0 },
+ [U8_24] = { 8, 24, 0 },
+ [U8_32] = { 8, 32, 0 },
[I16_16] = { 16, 16, OPERAND_SIGNED },
[U16_16] = { 16, 16, 0 },
+ [U16_32] = { 16, 32, 0 },
[J16_16] = { 16, 16, OPERAND_PCREL },
+ [I16_32] = { 16, 32, OPERAND_SIGNED },
[J32_16] = { 32, 16, OPERAND_PCREL },
[I32_16] = { 32, 16, OPERAND_SIGNED },
[U32_16] = { 32, 16, 0 },
@@ -183,82 +211,93 @@ static const struct operand operands[] =
};
static const unsigned char formats[][7] = {
- [INSTR_E] = { 0xff, 0,0,0,0,0,0 }, /* e.g. pr */
- [INSTR_RIE_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 }, /* e.g. brxhg */
- [INSTR_RIL_RP] = { 0x0f, R_8,J32_16,0,0,0,0 }, /* e.g. brasl */
- [INSTR_RIL_UP] = { 0x0f, U4_8,J32_16,0,0,0,0 }, /* e.g. brcl */
- [INSTR_RIL_RI] = { 0x0f, R_8,I32_16,0,0,0,0 }, /* e.g. afi */
- [INSTR_RIL_RU] = { 0x0f, R_8,U32_16,0,0,0,0 }, /* e.g. alfi */
- [INSTR_RI_RI] = { 0x0f, R_8,I16_16,0,0,0,0 }, /* e.g. ahi */
- [INSTR_RI_RP] = { 0x0f, R_8,J16_16,0,0,0,0 }, /* e.g. brct */
- [INSTR_RI_RU] = { 0x0f, R_8,U16_16,0,0,0,0 }, /* e.g. tml */
- [INSTR_RI_UP] = { 0x0f, U4_8,J16_16,0,0,0,0 }, /* e.g. brc */
- [INSTR_RRE_00] = { 0xff, 0,0,0,0,0,0 }, /* e.g. palb */
- [INSTR_RRE_0R] = { 0xff, R_28,0,0,0,0,0 }, /* e.g. tb */
- [INSTR_RRE_AA] = { 0xff, A_24,A_28,0,0,0,0 }, /* e.g. cpya */
- [INSTR_RRE_AR] = { 0xff, A_24,R_28,0,0,0,0 }, /* e.g. sar */
- [INSTR_RRE_F0] = { 0xff, F_24,0,0,0,0,0 }, /* e.g. sqer */
- [INSTR_RRE_FF] = { 0xff, F_24,F_28,0,0,0,0 }, /* e.g. debr */
- [INSTR_RRE_R0] = { 0xff, R_24,0,0,0,0,0 }, /* e.g. ipm */
- [INSTR_RRE_RA] = { 0xff, R_24,A_28,0,0,0,0 }, /* e.g. ear */
- [INSTR_RRE_RF] = { 0xff, R_24,F_28,0,0,0,0 }, /* e.g. cefbr */
- [INSTR_RRE_RR] = { 0xff, R_24,R_28,0,0,0,0 }, /* e.g. lura */
- [INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 }, /* efpc, sfpc */
- [INSTR_RRF_F0FF] = { 0xff, F_16,F_24,F_28,0,0,0 }, /* e.g. madbr */
- [INSTR_RRF_FUFF] = { 0xff, F_24,F_16,F_28,U4_20,0,0 },/* e.g. didbr */
- [INSTR_RRF_RURR] = { 0xff, R_24,R_28,R_16,U4_20,0,0 },/* e.g. .insn */
- [INSTR_RRF_R0RR] = { 0xff, R_24,R_16,R_28,0,0,0 }, /* e.g. idte */
- [INSTR_RRF_U0FF] = { 0xff, F_24,U4_16,F_28,0,0,0 }, /* e.g. fixr */
- [INSTR_RRF_U0RF] = { 0xff, R_24,U4_16,F_28,0,0,0 }, /* e.g. cfebr */
- [INSTR_RRF_M0RR] = { 0xff, R_24,R_28,M_16,0,0,0 }, /* e.g. sske */
- [INSTR_RR_FF] = { 0xff, F_8,F_12,0,0,0,0 }, /* e.g. adr */
- [INSTR_RR_R0] = { 0xff, R_8, 0,0,0,0,0 }, /* e.g. spm */
- [INSTR_RR_RR] = { 0xff, R_8,R_12,0,0,0,0 }, /* e.g. lr */
- [INSTR_RR_U0] = { 0xff, U8_8, 0,0,0,0,0 }, /* e.g. svc */
- [INSTR_RR_UR] = { 0xff, U4_8,R_12,0,0,0,0 }, /* e.g. bcr */
- [INSTR_RSE_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 }, /* e.g. lmh */
- [INSTR_RSE_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 }, /* e.g. lmh */
- [INSTR_RSE_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icmh */
- [INSTR_RSL_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 }, /* e.g. tp */
- [INSTR_RSI_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 }, /* e.g. brxh */
- [INSTR_RSY_RRRD] = { 0xff, R_8,R_12,D20_20,B_16,0,0 },/* e.g. stmy */
+ [INSTR_E] = { 0xff, 0,0,0,0,0,0 },
+ [INSTR_RIE_R0UU] = { 0xff, R_8,U16_16,U4_32,0,0,0 },
+ [INSTR_RIE_RRPU] = { 0xff, R_8,R_12,U4_32,J16_16,0,0 },
+ [INSTR_RIE_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 },
+ [INSTR_RIE_RRUUU] = { 0xff, R_8,R_12,U8_16,U8_24,U8_32,0 },
+ [INSTR_RIE_RUPI] = { 0xff, R_8,I8_32,U4_12,J16_16,0,0 },
+ [INSTR_RIL_RI] = { 0x0f, R_8,I32_16,0,0,0,0 },
+ [INSTR_RIL_RP] = { 0x0f, R_8,J32_16,0,0,0,0 },
+ [INSTR_RIL_RU] = { 0x0f, R_8,U32_16,0,0,0,0 },
+ [INSTR_RIL_UP] = { 0x0f, U4_8,J32_16,0,0,0,0 },
+ [INSTR_RIS_R0RDU] = { 0xff, R_8,U8_32,D_20,B_16,0,0 },
+ [INSTR_RIS_RURDI] = { 0xff, R_8,I8_32,U4_12,D_20,B_16,0 },
+ [INSTR_RIS_RURDU] = { 0xff, R_8,U8_32,U4_12,D_20,B_16,0 },
+ [INSTR_RI_RI] = { 0x0f, R_8,I16_16,0,0,0,0 },
+ [INSTR_RI_RP] = { 0x0f, R_8,J16_16,0,0,0,0 },
+ [INSTR_RI_RU] = { 0x0f, R_8,U16_16,0,0,0,0 },
+ [INSTR_RI_UP] = { 0x0f, U4_8,J16_16,0,0,0,0 },
+ [INSTR_RRE_00] = { 0xff, 0,0,0,0,0,0 },
+ [INSTR_RRE_0R] = { 0xff, R_28,0,0,0,0,0 },
+ [INSTR_RRE_AA] = { 0xff, A_24,A_28,0,0,0,0 },
+ [INSTR_RRE_AR] = { 0xff, A_24,R_28,0,0,0,0 },
+ [INSTR_RRE_F0] = { 0xff, F_24,0,0,0,0,0 },
+ [INSTR_RRE_FF] = { 0xff, F_24,F_28,0,0,0,0 },
+ [INSTR_RRE_FR] = { 0xff, F_24,R_28,0,0,0,0 },
+ [INSTR_RRE_R0] = { 0xff, R_24,0,0,0,0,0 },
+ [INSTR_RRE_RA] = { 0xff, R_24,A_28,0,0,0,0 },
+ [INSTR_RRE_RF] = { 0xff, R_24,F_28,0,0,0,0 },
+ [INSTR_RRE_RR] = { 0xff, R_24,R_28,0,0,0,0 },
+ [INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 },
+ [INSTR_RRF_0UFF] = { 0xff, F_24,F_28,U4_20,0,0,0 },
+ [INSTR_RRF_F0FF2] = { 0xff, F_24,F_16,F_28,0,0,0 },
+ [INSTR_RRF_F0FF] = { 0xff, F_16,F_24,F_28,0,0,0 },
+ [INSTR_RRF_F0FR] = { 0xff, F_24,F_16,R_28,0,0,0 },
+ [INSTR_RRF_FFRU] = { 0xff, F_24,F_16,R_28,U4_20,0,0 },
+ [INSTR_RRF_FUFF] = { 0xff, F_24,F_16,F_28,U4_20,0,0 },
+ [INSTR_RRF_M0RR] = { 0xff, R_24,R_28,M_16,0,0,0 },
+ [INSTR_RRF_R0RR] = { 0xff, R_24,R_16,R_28,0,0,0 },
+ [INSTR_RRF_RURR] = { 0xff, R_24,R_28,R_16,U4_20,0,0 },
+ [INSTR_RRF_U0FF] = { 0xff, F_24,U4_16,F_28,0,0,0 },
+ [INSTR_RRF_U0RF] = { 0xff, R_24,U4_16,F_28,0,0,0 },
+ [INSTR_RRF_U0RR] = { 0xff, R_24,R_28,U4_16,0,0,0 },
+ [INSTR_RRF_UUFF] = { 0xff, F_24,U4_16,F_28,U4_20,0,0 },
+ [INSTR_RRR_F0FF] = { 0xff, F_24,F_28,F_16,0,0,0 },
+ [INSTR_RRS_RRRDU] = { 0xff, R_8,R_12,U4_32,D_20,B_16,0 },
+ [INSTR_RR_FF] = { 0xff, F_8,F_12,0,0,0,0 },
+ [INSTR_RR_R0] = { 0xff, R_8, 0,0,0,0,0 },
+ [INSTR_RR_RR] = { 0xff, R_8,R_12,0,0,0,0 },
+ [INSTR_RR_U0] = { 0xff, U8_8, 0,0,0,0,0 },
+ [INSTR_RR_UR] = { 0xff, U4_8,R_12,0,0,0,0 },
+ [INSTR_RSE_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 },
+ [INSTR_RSE_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 },
+ [INSTR_RSE_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 },
+ [INSTR_RSI_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 },
+ [INSTR_RSL_R0RD] = { 0xff, D_20,L4_8,B_16,0,0,0 },
+ [INSTR_RSY_AARD] = { 0xff, A_8,A_12,D20_20,B_16,0,0 },
+ [INSTR_RSY_CCRD] = { 0xff, C_8,C_12,D20_20,B_16,0,0 },
+ [INSTR_RSY_RRRD] = { 0xff, R_8,R_12,D20_20,B_16,0,0 },
[INSTR_RSY_RURD] = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
- /* e.g. icmh */
- [INSTR_RSY_AARD] = { 0xff, A_8,A_12,D20_20,B_16,0,0 },/* e.g. lamy */
- [INSTR_RSY_CCRD] = { 0xff, C_8,C_12,D20_20,B_16,0,0 },/* e.g. lamy */
- [INSTR_RS_AARD] = { 0xff, A_8,A_12,D_20,B_16,0,0 }, /* e.g. lam */
- [INSTR_RS_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 }, /* e.g. lctl */
- [INSTR_RS_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 }, /* e.g. sll */
- [INSTR_RS_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 }, /* e.g. cs */
- [INSTR_RS_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icm */
- [INSTR_RXE_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 }, /* e.g. axbr */
- [INSTR_RXE_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 }, /* e.g. lg */
+ [INSTR_RS_AARD] = { 0xff, A_8,A_12,D_20,B_16,0,0 },
+ [INSTR_RS_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 },
+ [INSTR_RS_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 },
+ [INSTR_RS_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 },
+ [INSTR_RS_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 },
+ [INSTR_RXE_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 },
+ [INSTR_RXE_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 },
[INSTR_RXF_FRRDF] = { 0xff, F_32,F_8,D_20,X_12,B_16,0 },
- /* e.g. madb */
- [INSTR_RXY_RRRD] = { 0xff, R_8,D20_20,X_12,B_16,0,0 },/* e.g. ly */
- [INSTR_RXY_FRRD] = { 0xff, F_8,D20_20,X_12,B_16,0,0 },/* e.g. ley */
- [INSTR_RX_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 }, /* e.g. ae */
- [INSTR_RX_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 }, /* e.g. l */
- [INSTR_RX_URRD] = { 0xff, U4_8,D_20,X_12,B_16,0,0 }, /* e.g. bc */
- [INSTR_SI_URD] = { 0xff, D_20,B_16,U8_8,0,0,0 }, /* e.g. cli */
- [INSTR_SIY_URD] = { 0xff, D20_20,B_16,U8_8,0,0,0 }, /* e.g. tmy */
- [INSTR_SSE_RDRD] = { 0xff, D_20,B_16,D_36,B_32,0,0 }, /* e.g. mvsdk */
+ [INSTR_RXY_FRRD] = { 0xff, F_8,D20_20,X_12,B_16,0,0 },
+ [INSTR_RXY_RRRD] = { 0xff, R_8,D20_20,X_12,B_16,0,0 },
+ [INSTR_RXY_URRD] = { 0xff, U4_8,D20_20,X_12,B_16,0,0 },
+ [INSTR_RX_FRRD] = { 0xff, F_8,D_20,X_12,B_16,0,0 },
+ [INSTR_RX_RRRD] = { 0xff, R_8,D_20,X_12,B_16,0,0 },
+ [INSTR_RX_URRD] = { 0xff, U4_8,D_20,X_12,B_16,0,0 },
+ [INSTR_SIL_RDI] = { 0xff, D_20,B_16,I16_32,0,0,0 },
+ [INSTR_SIL_RDU] = { 0xff, D_20,B_16,U16_32,0,0,0 },
+ [INSTR_SIY_IRD] = { 0xff, D20_20,B_16,I8_8,0,0,0 },
+ [INSTR_SIY_URD] = { 0xff, D20_20,B_16,U8_8,0,0,0 },
+ [INSTR_SI_URD] = { 0xff, D_20,B_16,U8_8,0,0,0 },
+ [INSTR_SSE_RDRD] = { 0xff, D_20,B_16,D_36,B_32,0,0 },
+ [INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
[INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 },
- /* e.g. mvc */
[INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 },
- /* e.g. srp */
[INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 },
- /* e.g. pack */
- [INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
- /* e.g. mvck */
[INSTR_SS_RRRDRD2]= { 0xff, R_8,D_20,B_16,R_12,D_36,B_32 },
- /* e.g. plo */
[INSTR_SS_RRRDRD3]= { 0xff, R_8,R_12,D_20,B_16,D_36,B_32 },
- /* e.g. lmd */
- [INSTR_S_00] = { 0xff, 0,0,0,0,0,0 }, /* e.g. hsch */
- [INSTR_S_RD] = { 0xff, D_20,B_16,0,0,0,0 }, /* e.g. lpsw */
- [INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
- /* e.g. mvcos */
+ [INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
+ [INSTR_S_00] = { 0xff, 0,0,0,0,0,0 },
+ [INSTR_S_RD] = { 0xff, D_20,B_16,0,0,0,0 },
};
static struct insn opcode[] = {
@@ -454,6 +493,8 @@ static struct insn opcode[] = {
static struct insn opcode_01[] = {
#ifdef CONFIG_64BIT
{ "sam64", 0x0e, INSTR_E },
+ { "pfpo", 0x0a, INSTR_E },
+ { "ptff", 0x04, INSTR_E },
#endif
{ "pr", 0x01, INSTR_E },
{ "upt", 0x02, INSTR_E },
@@ -519,6 +560,8 @@ static struct insn opcode_b2[] = {
{ "cutfu", 0xa7, INSTR_RRF_M0RR },
{ "stfle", 0xb0, INSTR_S_RD },
{ "lpswe", 0xb2, INSTR_S_RD },
+ { "srnmt", 0xb9, INSTR_S_RD },
+ { "lfas", 0xbd, INSTR_S_RD },
#endif
{ "stidp", 0x02, INSTR_S_RD },
{ "sck", 0x04, INSTR_S_RD },
@@ -589,7 +632,6 @@ static struct insn opcode_b2[] = {
{ "clst", 0x5d, INSTR_RRE_RR },
{ "srst", 0x5e, INSTR_RRE_RR },
{ "cmpsc", 0x63, INSTR_RRE_RR },
- { "cmpsc", 0x63, INSTR_RRE_RR },
{ "siga", 0x74, INSTR_S_RD },
{ "xsch", 0x76, INSTR_S_00 },
{ "rp", 0x77, INSTR_S_RD },
@@ -630,6 +672,57 @@ static struct insn opcode_b3[] = {
{ "cger", 0xc8, INSTR_RRF_U0RF },
{ "cgdr", 0xc9, INSTR_RRF_U0RF },
{ "cgxr", 0xca, INSTR_RRF_U0RF },
+ { "lpdfr", 0x70, INSTR_RRE_FF },
+ { "lndfr", 0x71, INSTR_RRE_FF },
+ { "cpsdr", 0x72, INSTR_RRF_F0FF2 },
+ { "lcdfr", 0x73, INSTR_RRE_FF },
+ { "ldgr", 0xc1, INSTR_RRE_FR },
+ { "lgdr", 0xcd, INSTR_RRE_RF },
+ { "adtr", 0xd2, INSTR_RRR_F0FF },
+ { "axtr", 0xda, INSTR_RRR_F0FF },
+ { "cdtr", 0xe4, INSTR_RRE_FF },
+ { "cxtr", 0xec, INSTR_RRE_FF },
+ { "kdtr", 0xe0, INSTR_RRE_FF },
+ { "kxtr", 0xe8, INSTR_RRE_FF },
+ { "cedtr", 0xf4, INSTR_RRE_FF },
+ { "cextr", 0xfc, INSTR_RRE_FF },
+ { "cdgtr", 0xf1, INSTR_RRE_FR },
+ { "cxgtr", 0xf9, INSTR_RRE_FR },
+ { "cdstr", 0xf3, INSTR_RRE_FR },
+ { "cxstr", 0xfb, INSTR_RRE_FR },
+ { "cdutr", 0xf2, INSTR_RRE_FR },
+ { "cxutr", 0xfa, INSTR_RRE_FR },
+ { "cgdtr", 0xe1, INSTR_RRF_U0RF },
+ { "cgxtr", 0xe9, INSTR_RRF_U0RF },
+ { "csdtr", 0xe3, INSTR_RRE_RF },
+ { "csxtr", 0xeb, INSTR_RRE_RF },
+ { "cudtr", 0xe2, INSTR_RRE_RF },
+ { "cuxtr", 0xea, INSTR_RRE_RF },
+ { "ddtr", 0xd1, INSTR_RRR_F0FF },
+ { "dxtr", 0xd9, INSTR_RRR_F0FF },
+ { "eedtr", 0xe5, INSTR_RRE_RF },
+ { "eextr", 0xed, INSTR_RRE_RF },
+ { "esdtr", 0xe7, INSTR_RRE_RF },
+ { "esxtr", 0xef, INSTR_RRE_RF },
+ { "iedtr", 0xf6, INSTR_RRF_F0FR },
+ { "iextr", 0xfe, INSTR_RRF_F0FR },
+ { "ltdtr", 0xd6, INSTR_RRE_FF },
+ { "ltxtr", 0xde, INSTR_RRE_FF },
+ { "fidtr", 0xd7, INSTR_RRF_UUFF },
+ { "fixtr", 0xdf, INSTR_RRF_UUFF },
+ { "ldetr", 0xd4, INSTR_RRF_0UFF },
+ { "lxdtr", 0xdc, INSTR_RRF_0UFF },
+ { "ledtr", 0xd5, INSTR_RRF_UUFF },
+ { "ldxtr", 0xdd, INSTR_RRF_UUFF },
+ { "mdtr", 0xd0, INSTR_RRR_F0FF },
+ { "mxtr", 0xd8, INSTR_RRR_F0FF },
+ { "qadtr", 0xf5, INSTR_RRF_FUFF },
+ { "qaxtr", 0xfd, INSTR_RRF_FUFF },
+ { "rrdtr", 0xf7, INSTR_RRF_FFRU },
+ { "rrxtr", 0xff, INSTR_RRF_FFRU },
+ { "sfasr", 0x85, INSTR_RRE_R0 },
+ { "sdtr", 0xd3, INSTR_RRR_F0FF },
+ { "sxtr", 0xdb, INSTR_RRR_F0FF },
#endif
{ "lpebr", 0x00, INSTR_RRE_FF },
{ "lnebr", 0x01, INSTR_RRE_FF },
@@ -780,6 +873,14 @@ static struct insn opcode_b9[] = {
{ "cu24", 0xb1, INSTR_RRF_M0RR },
{ "cu41", 0xb2, INSTR_RRF_M0RR },
{ "cu42", 0xb3, INSTR_RRF_M0RR },
+ { "crt", 0x72, INSTR_RRF_U0RR },
+ { "cgrt", 0x60, INSTR_RRF_U0RR },
+ { "clrt", 0x73, INSTR_RRF_U0RR },
+ { "clgrt", 0x61, INSTR_RRF_U0RR },
+ { "ptf", 0xa2, INSTR_RRE_R0 },
+ { "pfmf", 0xaf, INSTR_RRE_RR },
+ { "trte", 0xbf, INSTR_RRF_M0RR },
+ { "trtre", 0xbd, INSTR_RRF_M0RR },
#endif
{ "kmac", 0x1e, INSTR_RRE_RR },
{ "lrvr", 0x1f, INSTR_RRE_RR },
@@ -835,6 +936,43 @@ static struct insn opcode_c2[] = {
{ "cfi", 0x0d, INSTR_RIL_RI },
{ "clgfi", 0x0e, INSTR_RIL_RU },
{ "clfi", 0x0f, INSTR_RIL_RU },
+ { "msfi", 0x01, INSTR_RIL_RI },
+ { "msgfi", 0x00, INSTR_RIL_RI },
+#endif
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c4[] = {
+#ifdef CONFIG_64BIT
+ { "lrl", 0x0d, INSTR_RIL_RP },
+ { "lgrl", 0x08, INSTR_RIL_RP },
+ { "lgfrl", 0x0c, INSTR_RIL_RP },
+ { "lhrl", 0x05, INSTR_RIL_RP },
+ { "lghrl", 0x04, INSTR_RIL_RP },
+ { "llgfrl", 0x0e, INSTR_RIL_RP },
+ { "llhrl", 0x02, INSTR_RIL_RP },
+ { "llghrl", 0x06, INSTR_RIL_RP },
+ { "strl", 0x0f, INSTR_RIL_RP },
+ { "stgrl", 0x0b, INSTR_RIL_RP },
+ { "sthrl", 0x07, INSTR_RIL_RP },
+#endif
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c6[] = {
+#ifdef CONFIG_64BIT
+ { "crl", 0x0d, INSTR_RIL_RP },
+ { "cgrl", 0x08, INSTR_RIL_RP },
+ { "cgfrl", 0x0c, INSTR_RIL_RP },
+ { "chrl", 0x05, INSTR_RIL_RP },
+ { "cghrl", 0x04, INSTR_RIL_RP },
+ { "clrl", 0x0f, INSTR_RIL_RP },
+ { "clgrl", 0x0a, INSTR_RIL_RP },
+ { "clgfrl", 0x0e, INSTR_RIL_RP },
+ { "clhrl", 0x07, INSTR_RIL_RP },
+ { "clghrl", 0x06, INSTR_RIL_RP },
+ { "pfdrl", 0x02, INSTR_RIL_UP },
+ { "exrl", 0x00, INSTR_RIL_RP },
#endif
{ "", 0, INSTR_INVALID }
};
@@ -842,6 +980,8 @@ static struct insn opcode_c2[] = {
static struct insn opcode_c8[] = {
#ifdef CONFIG_64BIT
{ "mvcos", 0x00, INSTR_SSF_RRDRD },
+ { "ectg", 0x01, INSTR_SSF_RRDRD },
+ { "csst", 0x02, INSTR_SSF_RRDRD },
#endif
{ "", 0, INSTR_INVALID }
};
@@ -917,6 +1057,12 @@ static struct insn opcode_e3[] = {
{ "llgh", 0x91, INSTR_RXY_RRRD },
{ "llc", 0x94, INSTR_RXY_RRRD },
{ "llh", 0x95, INSTR_RXY_RRRD },
+ { "cgh", 0x34, INSTR_RXY_RRRD },
+ { "laey", 0x75, INSTR_RXY_RRRD },
+ { "ltgf", 0x32, INSTR_RXY_RRRD },
+ { "mfy", 0x5c, INSTR_RXY_RRRD },
+ { "mhy", 0x7c, INSTR_RXY_RRRD },
+ { "pfd", 0x36, INSTR_RXY_URRD },
#endif
{ "lrv", 0x1e, INSTR_RXY_RRRD },
{ "lrvh", 0x1f, INSTR_RXY_RRRD },
@@ -931,6 +1077,15 @@ static struct insn opcode_e3[] = {
static struct insn opcode_e5[] = {
#ifdef CONFIG_64BIT
{ "strag", 0x02, INSTR_SSE_RDRD },
+ { "chhsi", 0x54, INSTR_SIL_RDI },
+ { "chsi", 0x5c, INSTR_SIL_RDI },
+ { "cghsi", 0x58, INSTR_SIL_RDI },
+ { "clhhsi", 0x55, INSTR_SIL_RDU },
+ { "clfhsi", 0x5d, INSTR_SIL_RDU },
+ { "clghsi", 0x59, INSTR_SIL_RDU },
+ { "mvhhi", 0x44, INSTR_SIL_RDI },
+ { "mvhi", 0x4c, INSTR_SIL_RDI },
+ { "mvghi", 0x48, INSTR_SIL_RDI },
#endif
{ "lasp", 0x00, INSTR_SSE_RDRD },
{ "tprot", 0x01, INSTR_SSE_RDRD },
@@ -977,6 +1132,11 @@ static struct insn opcode_eb[] = {
{ "lmy", 0x98, INSTR_RSY_RRRD },
{ "lamy", 0x9a, INSTR_RSY_AARD },
{ "stamy", 0x9b, INSTR_RSY_AARD },
+ { "asi", 0x6a, INSTR_SIY_IRD },
+ { "agsi", 0x7a, INSTR_SIY_IRD },
+ { "alsi", 0x6e, INSTR_SIY_IRD },
+ { "algsi", 0x7e, INSTR_SIY_IRD },
+ { "ecag", 0x4c, INSTR_RSY_RRRD },
#endif
{ "rll", 0x1d, INSTR_RSY_RRRD },
{ "mvclu", 0x8e, INSTR_RSY_RRRD },
@@ -988,6 +1148,30 @@ static struct insn opcode_ec[] = {
#ifdef CONFIG_64BIT
{ "brxhg", 0x44, INSTR_RIE_RRP },
{ "brxlg", 0x45, INSTR_RIE_RRP },
+ { "crb", 0xf6, INSTR_RRS_RRRDU },
+ { "cgrb", 0xe4, INSTR_RRS_RRRDU },
+ { "crj", 0x76, INSTR_RIE_RRPU },
+ { "cgrj", 0x64, INSTR_RIE_RRPU },
+ { "cib", 0xfe, INSTR_RIS_RURDI },
+ { "cgib", 0xfc, INSTR_RIS_RURDI },
+ { "cij", 0x7e, INSTR_RIE_RUPI },
+ { "cgij", 0x7c, INSTR_RIE_RUPI },
+ { "cit", 0x72, INSTR_RIE_R0IU },
+ { "cgit", 0x70, INSTR_RIE_R0IU },
+ { "clrb", 0xf7, INSTR_RRS_RRRDU },
+ { "clgrb", 0xe5, INSTR_RRS_RRRDU },
+ { "clrj", 0x77, INSTR_RIE_RRPU },
+ { "clgrj", 0x65, INSTR_RIE_RRPU },
+ { "clib", 0xff, INSTR_RIS_RURDU },
+ { "clgib", 0xfd, INSTR_RIS_RURDU },
+ { "clij", 0x7f, INSTR_RIE_RUPU },
+ { "clgij", 0x7d, INSTR_RIE_RUPU },
+ { "clfit", 0x73, INSTR_RIE_R0UU },
+ { "clgit", 0x71, INSTR_RIE_R0UU },
+ { "rnsbg", 0x54, INSTR_RIE_RRUUU },
+ { "rxsbg", 0x57, INSTR_RIE_RRUUU },
+ { "rosbg", 0x56, INSTR_RIE_RRUUU },
+ { "risbg", 0x55, INSTR_RIE_RRUUU },
#endif
{ "", 0, INSTR_INVALID }
};
@@ -1004,6 +1188,16 @@ static struct insn opcode_ed[] = {
{ "ldy", 0x65, INSTR_RXY_FRRD },
{ "stey", 0x66, INSTR_RXY_FRRD },
{ "stdy", 0x67, INSTR_RXY_FRRD },
+ { "sldt", 0x40, INSTR_RXF_FRRDF },
+ { "slxt", 0x48, INSTR_RXF_FRRDF },
+ { "srdt", 0x41, INSTR_RXF_FRRDF },
+ { "srxt", 0x49, INSTR_RXF_FRRDF },
+ { "tdcet", 0x50, INSTR_RXE_FRRD },
+ { "tdcdt", 0x54, INSTR_RXE_FRRD },
+ { "tdcxt", 0x58, INSTR_RXE_FRRD },
+ { "tdget", 0x51, INSTR_RXE_FRRD },
+ { "tdgdt", 0x55, INSTR_RXE_FRRD },
+ { "tdgxt", 0x59, INSTR_RXE_FRRD },
#endif
{ "ldeb", 0x04, INSTR_RXE_FRRD },
{ "lxdb", 0x05, INSTR_RXE_FRRD },
@@ -1037,6 +1231,7 @@ static struct insn opcode_ed[] = {
{ "mae", 0x2e, INSTR_RXF_FRRDF },
{ "mse", 0x2f, INSTR_RXF_FRRDF },
{ "sqe", 0x34, INSTR_RXE_FRRD },
+ { "sqd", 0x35, INSTR_RXE_FRRD },
{ "mee", 0x37, INSTR_RXE_FRRD },
{ "mad", 0x3e, INSTR_RXF_FRRDF },
{ "msd", 0x3f, INSTR_RXF_FRRDF },
@@ -1117,6 +1312,12 @@ static struct insn *find_insn(unsigned char *code)
case 0xc2:
table = opcode_c2;
break;
+ case 0xc4:
+ table = opcode_c4;
+ break;
+ case 0xc6:
+ table = opcode_c6;
+ break;
case 0xc8:
table = opcode_c8;
break;
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index e49e9e0c69fd..31d618a443af 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -214,10 +214,13 @@ static __initdata struct sysinfo_3_2_2 vmms __aligned(PAGE_SIZE);
static noinline __init void detect_machine_type(void)
{
- /* No VM information? Looks like LPAR */
- if (stsi(&vmms, 3, 2, 2) == -ENOSYS)
+ /* Check current-configuration-level */
+ if ((stsi(NULL, 0, 0, 0) >> 28) <= 2) {
+ S390_lowcore.machine_flags |= MACHINE_FLAG_LPAR;
return;
- if (!vmms.count)
+ }
+ /* Get virtual-machine cpu information. */
+ if (stsi(&vmms, 3, 2, 2) == -ENOSYS || !vmms.count)
return;
/* Running under KVM? If not we assume z/VM */
@@ -402,8 +405,19 @@ static void __init append_to_cmdline(size_t (*ipl_data)(char *, size_t))
static void __init setup_boot_command_line(void)
{
+ int i;
+
+ /* convert arch command line to ascii */
+ for (i = 0; i < ARCH_COMMAND_LINE_SIZE; i++)
+ if (COMMAND_LINE[i] & 0x80)
+ break;
+ if (i < ARCH_COMMAND_LINE_SIZE)
+ EBCASC(COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
+ COMMAND_LINE[ARCH_COMMAND_LINE_SIZE-1] = 0;
+
/* copy arch command line */
- strlcpy(boot_command_line, COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
+ strlcpy(boot_command_line, strstrip(COMMAND_LINE),
+ ARCH_COMMAND_LINE_SIZE);
/* append IPL PARM data to the boot command line */
if (MACHINE_IS_VM)
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index e8ef21c51bbe..4348f9bc5393 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -13,7 +13,6 @@
#include <linux/linkage.h>
#include <linux/init.h>
#include <asm/cache.h>
-#include <asm/lowcore.h>
#include <asm/errno.h>
#include <asm/ptrace.h>
#include <asm/thread_info.h>
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index f33658f09dd7..29fd0f1e6ec4 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -9,11 +9,9 @@
* Heiko Carstens <heiko.carstens@de.ibm.com>
*/
-#include <linux/sys.h>
#include <linux/linkage.h>
#include <linux/init.h>
#include <asm/cache.h>
-#include <asm/lowcore.h>
#include <asm/errno.h>
#include <asm/ptrace.h>
#include <asm/thread_info.h>
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 5a82bc68193e..314d8f09cf31 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -13,7 +13,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <trace/syscall.h>
-#include <asm/lowcore.h>
+#include <asm/asm-offsets.h>
#ifdef CONFIG_DYNAMIC_FTRACE
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index c52b4f7742fa..ca4a62bd862f 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -1,5 +1,5 @@
/*
- * Copyright IBM Corp. 1999,2009
+ * Copyright IBM Corp. 1999,2010
*
* Author(s): Hartmut Penner <hp@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -22,12 +22,9 @@
*/
#include <linux/init.h>
-#include <asm/setup.h>
-#include <asm/lowcore.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page.h>
-#include <asm/cpu.h>
#ifdef CONFIG_64BIT
#define ARCH_OFFSET 4
@@ -288,19 +285,7 @@ iplstart:
bz .Lagain1 # skip dateset trailer
la %r5,0(%r4,%r2)
lr %r3,%r2
-.Lidebc:
- tm 0(%r5),0x80 # high order bit set ?
- bo .Ldocv # yes -> convert from EBCDIC
- ahi %r5,-1
- bct %r3,.Lidebc
- b .Lnocv
-.Ldocv:
- l %r3,.Lcvtab
- tr 0(256,%r4),0(%r3) # convert parameters to ascii
- tr 256(256,%r4),0(%r3)
- tr 512(256,%r4),0(%r3)
- tr 768(122,%r4),0(%r3)
-.Lnocv: la %r3,COMMAND_LINE-PARMAREA(%r12) # load adr. of command line
+ la %r3,COMMAND_LINE-PARMAREA(%r12) # load adr. of command line
mvc 0(256,%r3),0(%r4)
mvc 256(256,%r3),256(%r4)
mvc 512(256,%r3),512(%r4)
@@ -384,7 +369,6 @@ iplstart:
.Linitrd:.long _end + 0x400000 # default address of initrd
.Lparm: .long PARMAREA
.Lstartup: .long startup
-.Lcvtab:.long _ebcasc # ebcdic to ascii table
.Lreset:.byte 0xc3,0xc8,0xc1,0xd5,0xc7,0xc5,0x40,0xd9,0xc4,0xd9,0x40
.byte 0xc1,0xd3,0xd3,0x40,0xd2,0xc5,0xc5,0xd7,0x40,0xd5,0xd6
.byte 0xc8,0xd6,0xd3,0xc4 # "change rdr all keep nohold"
@@ -417,13 +401,10 @@ start:
.sk8x8:
mvc 0(240,%r8),0(%r9) # copy iplparms into buffer
.gotr:
- l %r10,.tbl # EBCDIC to ASCII table
- tr 0(240,%r8),0(%r10)
slr %r0,%r0
st %r0,INITRD_SIZE+ARCH_OFFSET-PARMAREA(%r11)
st %r0,INITRD_START+ARCH_OFFSET-PARMAREA(%r11)
j startup # continue with startup
-.tbl: .long _ebcasc # translate table
.cmd: .long COMMAND_LINE # address of command line buffer
.parm: .long PARMAREA
.lowcase:
@@ -467,16 +448,15 @@ start:
# or linload or SALIPL
#
.org 0x10000
-startup:basr %r13,0 # get base
+ .globl startup
+startup:
+ basr %r13,0 # get base
.LPG0:
xc 0x200(256),0x200 # partially clear lowcore
xc 0x300(256),0x300
- l %r1,5f-.LPG0(%r13)
- stck 0(%r1)
- spt 6f-.LPG0(%r13)
- mvc __LC_LAST_UPDATE_CLOCK(8),0(%r1)
- mvc __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13)
- mvc __LC_EXIT_TIMER(8),5f-.LPG0(%r13)
+ stck __LC_LAST_UPDATE_CLOCK
+ spt 5f-.LPG0(%r13)
+ mvc __LC_LAST_UPDATE_TIMER(8),5f-.LPG0(%r13)
#ifndef CONFIG_MARCH_G5
# check capabilities against MARCH_{G5,Z900,Z990,Z9_109,Z10}
xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST
@@ -494,7 +474,6 @@ startup:basr %r13,0 # get base
cl %r0,2f+12-.LPG0(%r13)
je 3f
1: l %r15,.Lstack-.LPG0(%r13)
- ahi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union+THREAD_SIZE
ahi %r15,-96
la %r2,.Lals_string-.LPG0(%r13)
l %r3,.Lsclp_print-.LPG0(%r13)
@@ -505,7 +484,7 @@ startup:basr %r13,0 # get base
.Lsclp_print:
.long _sclp_print_early
.Lstack:
- .long init_thread_union
+ .long 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
.align 16
2: .long 0x000a0000,0x8badcccc
#if defined(CONFIG_64BIT)
@@ -532,13 +511,22 @@ startup:basr %r13,0 # get base
3:
#endif
+#ifdef CONFIG_64BIT
+ mvi __LC_AR_MODE_ID,1 # set esame flag
+ slr %r0,%r0 # set cpuid to zero
+ lhi %r1,2 # mode 2 = esame (dump)
+ sigp %r1,%r0,0x12 # switch to esame mode
+ sam64 # switch to 64 bit mode
+ jg startup_continue
+#else
+ mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0)
l %r13,4f-.LPG0(%r13)
b 0(%r13)
- .align 4
+ .align 8
4: .long startup_continue
-5: .long sched_clock_base_cc
+#endif
.align 8
-6: .long 0x7fffffff,0xffffffff
+5: .long 0x7fffffff,0xffffffff
#
# params at 10400 (setup.h)
@@ -552,8 +540,4 @@ startup:basr %r13,0 # get base
.byte "root=/dev/ram0 ro"
.byte 0
-#ifdef CONFIG_64BIT
-#include "head64.S"
-#else
-#include "head31.S"
-#endif
+ .org 0x11000
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index 602b508cd4c4..1bbcc499d455 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -1,7 +1,7 @@
/*
* arch/s390/kernel/head31.S
*
- * Copyright (C) IBM Corp. 2005,2006
+ * Copyright (C) IBM Corp. 2005,2010
*
* Author(s): Hartmut Penner <hp@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -10,13 +10,19 @@
*
*/
- .org 0x11000
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+__HEAD
+ .globl startup_continue
startup_continue:
basr %r13,0 # get base
.LPG1:
- mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0)
+ l %r1,.Lbase_cc-.LPG1(%r13)
+ mvc 0(8,%r1),__LC_LAST_UPDATE_CLOCK
lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
# move IPL device to lowcore
@@ -69,10 +75,12 @@ startup_continue:
.Lduald:.rept 8
.long 0x80000000,0,0,0 # invalid access-list entries
.endr
+.Lbase_cc:
+ .long sched_clock_base_cc
- .org 0x12000
.globl _ehead
_ehead:
+
#ifdef CONFIG_SHARED_KERNEL
.org 0x100000
#endif
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index d984a2a380c3..39580e768658 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -1,7 +1,7 @@
/*
* arch/s390/kernel/head64.S
*
- * Copyright (C) IBM Corp. 1999,2006
+ * Copyright (C) IBM Corp. 1999,2010
*
* Author(s): Hartmut Penner <hp@de.ibm.com>
* Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -10,80 +10,17 @@
*
*/
- .org 0x11000
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+__HEAD
+ .globl startup_continue
startup_continue:
- basr %r13,0 # get base
-.LPG1: sll %r13,1 # remove high order bit
- srl %r13,1
-
-#ifdef CONFIG_ZFCPDUMP
-
- # check if we have been ipled using zfcp dump:
-
- tm 0xb9,0x01 # test if subchannel is enabled
- jno .nodump # subchannel disabled
- l %r1,0xb8
- la %r5,.Lipl_schib-.LPG1(%r13)
- stsch 0(%r5) # get schib of subchannel
- jne .nodump # schib not available
- tm 5(%r5),0x01 # devno valid?
- jno .nodump
- tm 4(%r5),0x80 # qdio capable device?
- jno .nodump
- l %r2,20(%r0) # address of ipl parameter block
- lhi %r3,0
- ic %r3,0x148(%r2) # get opt field
- chi %r3,0x20 # load with dump?
- jne .nodump
-
- # store all prefix registers in case of load with dump:
-
- la %r7,0 # base register for 0 page
- la %r8,0 # first cpu
- l %r11,.Lpref_arr_ptr-.LPG1(%r13) # address of prefix array
- ahi %r11,4 # skip boot cpu
- lr %r12,%r11
- ahi %r12,(CONFIG_NR_CPUS*4) # end of prefix array
- stap .Lcurrent_cpu+2-.LPG1(%r13) # store current cpu addr
-1:
- cl %r8,.Lcurrent_cpu-.LPG1(%r13) # is ipl cpu ?
- je 4f # if yes get next cpu
-2:
- lr %r9,%r7
- sigp %r9,%r8,0x9 # stop & store status of cpu
- brc 8,3f # accepted
- brc 4,4f # status stored: next cpu
- brc 2,2b # busy: try again
- brc 1,4f # not op: next cpu
-3:
- mvc 0(4,%r11),264(%r7) # copy prefix register to prefix array
- ahi %r11,4 # next element in prefix array
- clr %r11,%r12
- je 5f # no more space in prefix array
-4:
- ahi %r8,1 # next cpu (r8 += 1)
- chi %r8,MAX_CPU_ADDRESS # is last possible cpu ?
- jle 1b # jump if not last cpu
-5:
- lhi %r1,2 # mode 2 = esame (dump)
- j 6f
- .align 4
-.Lipl_schib:
- .rept 13
- .long 0
- .endr
-.nodump:
- lhi %r1,1 # mode 1 = esame (normal ipl)
-6:
-#else
- lhi %r1,1 # mode 1 = esame (normal ipl)
-#endif /* CONFIG_ZFCPDUMP */
- mvi __LC_AR_MODE_ID,1 # set esame flag
- slr %r0,%r0 # set cpuid to zero
- sigp %r1,%r0,0x12 # switch to esame mode
- sam64 # switch to 64 bit mode
- llgfr %r13,%r13 # clear high-order half of base reg
+ larl %r1,sched_clock_base_cc
+ mvc 0(8,%r1),__LC_LAST_UPDATE_CLOCK
+ larl %r13,.LPG1 # get base
lmh %r0,%r15,.Lzero64-.LPG1(%r13) # clear high-order half
lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
lg %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
@@ -108,6 +45,7 @@ startup_continue:
lpswe .Lentry-.LPG1(13) # jump to _stext in primary-space,
# virtual and never return ...
.align 16
+.LPG1:
.Lentry:.quad 0x0000000180000000,_stext
.Lctl: .quad 0x04350002 # cr0: various things
.quad 0 # cr1: primary space segment table
@@ -130,12 +68,6 @@ startup_continue:
.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8
.Lnop: .long 0x07000700
.Lzero64:.fill 16,4,0x0
-#ifdef CONFIG_ZFCPDUMP
-.Lcurrent_cpu:
- .long 0x0
-.Lpref_arr_ptr:
- .long zfcpdump_prefix_array
-#endif /* CONFIG_ZFCPDUMP */
.Lparmaddr:
.quad PARMAREA
.align 64
@@ -146,9 +78,9 @@ startup_continue:
.long 0x80000000,0,0,0 # invalid access-list entries
.endr
- .org 0x12000
.globl _ehead
_ehead:
+
#ifdef CONFIG_SHARED_KERNEL
.org 0x100000
#endif
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 4d73296fed74..7eedbbcb54aa 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -553,7 +553,7 @@ out:
return rc;
}
-static void ipl_run(struct shutdown_trigger *trigger)
+static void __ipl_run(void *unused)
{
diag308(DIAG308_IPL, NULL);
if (MACHINE_IS_VM)
@@ -562,6 +562,11 @@ static void ipl_run(struct shutdown_trigger *trigger)
reipl_ccw_dev(&ipl_info.data.ccw.dev_id);
}
+static void ipl_run(struct shutdown_trigger *trigger)
+{
+ smp_switch_to_ipl_cpu(__ipl_run, NULL);
+}
+
static int __init ipl_init(void)
{
int rc;
@@ -1039,7 +1044,7 @@ static void get_ipl_string(char *dst, struct ipl_parameter_block *ipb,
sprintf(dst + pos, " PARM %s", vmparm);
}
-static void reipl_run(struct shutdown_trigger *trigger)
+static void __reipl_run(void *unused)
{
struct ccw_dev_id devid;
static char buf[128];
@@ -1087,6 +1092,11 @@ static void reipl_run(struct shutdown_trigger *trigger)
disabled_wait((unsigned long) __builtin_return_address(0));
}
+static void reipl_run(struct shutdown_trigger *trigger)
+{
+ smp_switch_to_ipl_cpu(__reipl_run, NULL);
+}
+
static void reipl_block_ccw_init(struct ipl_parameter_block *ipb)
{
ipb->hdr.len = IPL_PARM_BLK_CCW_LEN;
@@ -1369,20 +1379,18 @@ static struct kobj_attribute dump_type_attr =
static struct kset *dump_kset;
-static void dump_run(struct shutdown_trigger *trigger)
+static void __dump_run(void *unused)
{
struct ccw_dev_id devid;
static char buf[100];
switch (dump_method) {
case DUMP_METHOD_CCW_CIO:
- smp_send_stop();
devid.devno = dump_block_ccw->ipl_info.ccw.devno;
devid.ssid = 0;
reipl_ccw_dev(&devid);
break;
case DUMP_METHOD_CCW_VM:
- smp_send_stop();
sprintf(buf, "STORE STATUS");
__cpcmd(buf, NULL, 0, NULL);
sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno);
@@ -1396,10 +1404,17 @@ static void dump_run(struct shutdown_trigger *trigger)
diag308(DIAG308_SET, dump_block_fcp);
diag308(DIAG308_DUMP, NULL);
break;
- case DUMP_METHOD_NONE:
- return;
+ default:
+ break;
}
- printk(KERN_EMERG "Dump failed!\n");
+}
+
+static void dump_run(struct shutdown_trigger *trigger)
+{
+ if (dump_method == DUMP_METHOD_NONE)
+ return;
+ smp_send_stop();
+ smp_switch_to_ipl_cpu(__dump_run, NULL);
}
static int __init dump_ccw_init(void)
@@ -1577,7 +1592,7 @@ static void vmcmd_run(struct shutdown_trigger *trigger)
static int vmcmd_init(void)
{
if (!MACHINE_IS_VM)
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
vmcmd_kset = kset_create_and_add("vmcmd", NULL, firmware_kobj);
if (!vmcmd_kset)
return -ENOMEM;
@@ -1595,7 +1610,7 @@ static void stop_run(struct shutdown_trigger *trigger)
{
if (strcmp(trigger->name, ON_PANIC_STR) == 0)
disabled_wait((unsigned long) __builtin_return_address(0));
- while (signal_processor(smp_processor_id(), sigp_stop) == sigp_busy)
+ while (sigp(smp_processor_id(), sigp_stop) == sigp_busy)
cpu_relax();
for (;;);
}
@@ -1902,7 +1917,6 @@ void __init ipl_update_parameters(void)
void __init ipl_save_parameters(void)
{
struct cio_iplinfo iplinfo;
- unsigned int *ipl_ptr;
void *src, *dst;
if (cio_get_iplinfo(&iplinfo))
@@ -1913,11 +1927,10 @@ void __init ipl_save_parameters(void)
if (!iplinfo.is_qdio)
return;
ipl_flags |= IPL_PARMBLOCK_VALID;
- ipl_ptr = (unsigned int *)__LC_IPL_PARMBLOCK_PTR;
- src = (void *)(unsigned long)*ipl_ptr;
+ src = (void *)(unsigned long)S390_lowcore.ipl_parmblock_ptr;
dst = (void *)IPL_PARMBLOCK_ORIGIN;
memmove(dst, src, PAGE_SIZE);
- *ipl_ptr = IPL_PARMBLOCK_ORIGIN;
+ S390_lowcore.ipl_parmblock_ptr = IPL_PARMBLOCK_ORIGIN;
}
static LIST_HEAD(rcall);
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 131d7ee8b416..a922d51df6bf 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -54,11 +54,11 @@ void machine_shutdown(void)
{
}
-void machine_kexec(struct kimage *image)
+static void __machine_kexec(void *data)
{
relocate_kernel_t data_mover;
+ struct kimage *image = data;
- smp_send_stop();
pfault_fini();
s390_reset_system();
@@ -68,3 +68,9 @@ void machine_kexec(struct kimage *image)
(*data_mover)(&image->head, image->start);
for (;;);
}
+
+void machine_kexec(struct kimage *image)
+{
+ smp_send_stop();
+ smp_switch_to_ipl_cpu(__machine_kexec, image);
+}
diff --git a/arch/s390/kernel/reipl.S b/arch/s390/kernel/reipl.S
index 2f481cc3d1c9..cb899d9f8505 100644
--- a/arch/s390/kernel/reipl.S
+++ b/arch/s390/kernel/reipl.S
@@ -6,7 +6,7 @@
* Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com)
*/
-#include <asm/lowcore.h>
+#include <asm/asm-offsets.h>
#
# do_reipl_asm
diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S
index 774147824c3d..5e73dee63baa 100644
--- a/arch/s390/kernel/reipl64.S
+++ b/arch/s390/kernel/reipl64.S
@@ -4,7 +4,7 @@
* Denis Joseph Barrow,
*/
-#include <asm/lowcore.h>
+#include <asm/asm-offsets.h>
#
# do_reipl_asm
diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S
index e27ca63076d1..27af3bf3a009 100644
--- a/arch/s390/kernel/sclp.S
+++ b/arch/s390/kernel/sclp.S
@@ -9,8 +9,10 @@
*/
LC_EXT_NEW_PSW = 0x58 # addr of ext int handler
+LC_EXT_NEW_PSW_64 = 0x1b0 # addr of ext int handler 64 bit
LC_EXT_INT_PARAM = 0x80 # addr of ext int parameter
LC_EXT_INT_CODE = 0x86 # addr of ext int code
+LC_AR_MODE_ID = 0xa3
#
# Subroutine which waits synchronously until either an external interruption
@@ -30,8 +32,16 @@ _sclp_wait_int:
.LbaseS1:
ahi %r15,-96 # create stack frame
la %r8,LC_EXT_NEW_PSW # register int handler
- mvc .LoldpswS1-.LbaseS1(8,%r13),0(%r8)
- mvc 0(8,%r8),.LextpswS1-.LbaseS1(%r13)
+ la %r9,.LextpswS1-.LbaseS1(%r13)
+#ifdef CONFIG_64BIT
+ tm LC_AR_MODE_ID,1
+ jno .Lesa1
+ la %r8,LC_EXT_NEW_PSW_64 # register int handler 64 bit
+ la %r9,.LextpswS1_64-.LbaseS1(%r13)
+.Lesa1:
+#endif
+ mvc .LoldpswS1-.LbaseS1(16,%r13),0(%r8)
+ mvc 0(16,%r8),0(%r9)
lhi %r6,0x0200 # cr mask for ext int (cr0.54)
ltr %r2,%r2
jz .LsetctS1
@@ -64,15 +74,19 @@ _sclp_wait_int:
.LtimeoutS1:
lctl %c0,%c0,.LctlS1-.LbaseS1(%r13) # restore interrupt setting
# restore old handler
- mvc 0(8,%r8),.LoldpswS1-.LbaseS1(%r13)
+ mvc 0(16,%r8),.LoldpswS1-.LbaseS1(%r13)
lm %r6,%r15,120(%r15) # restore registers
br %r14 # return to caller
.align 8
.LoldpswS1:
- .long 0, 0 # old ext int PSW
+ .long 0, 0, 0, 0 # old ext int PSW
.LextpswS1:
.long 0x00080000, 0x80000000+.LwaitS1 # PSW to handle ext int
+#ifdef CONFIG_64BIT
+.LextpswS1_64:
+ .quad 0x0000000180000000, .LwaitS1 # PSW to handle ext int, 64 bit
+#endif
.LwaitpswS1:
.long 0x010a0000, 0x00000000+.LloopS1 # PSW to wait for ext int
.LtimeS1:
@@ -250,6 +264,13 @@ _sclp_print:
_sclp_print_early:
stm %r6,%r15,24(%r15) # save registers
ahi %r15,-96 # create stack frame
+#ifdef CONFIG_64BIT
+ tm LC_AR_MODE_ID,1
+ jno .Lesa2
+ ahi %r15,-80
+ stmh %r6,%r15,96(%r15) # store upper register halves
+.Lesa2:
+#endif
lr %r10,%r2 # save string pointer
lhi %r2,0
bras %r14,_sclp_setup # enable console
@@ -262,6 +283,13 @@ _sclp_print_early:
lhi %r2,1
bras %r14,_sclp_setup # disable console
.LendS5:
+#ifdef CONFIG_64BIT
+ tm LC_AR_MODE_ID,1
+ jno .Lesa3
+ lmh %r6,%r15,96(%r15) # store upper register halves
+ ahi %r15,80
+.Lesa3:
+#endif
lm %r6,%r15,120(%r15) # restore registers
br %r14
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 8d8957b38ab3..77a63ae419f0 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -396,15 +396,12 @@ static void __init
setup_lowcore(void)
{
struct _lowcore *lc;
- int lc_pages;
/*
* Setup lowcore for boot cpu
*/
- lc_pages = sizeof(void *) == 8 ? 2 : 1;
- lc = (struct _lowcore *)
- __alloc_bootmem(lc_pages * PAGE_SIZE, lc_pages * PAGE_SIZE, 0);
- memset(lc, 0, lc_pages * PAGE_SIZE);
+ BUILD_BUG_ON(sizeof(struct _lowcore) != LC_PAGES * 4096);
+ lc = __alloc_bootmem(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0);
lc->restart_psw.mask = PSW_BASE_BITS | PSW_DEFAULT_KEY;
lc->restart_psw.addr =
PSW_ADDR_AMODE | (unsigned long) restart_int_handler;
@@ -804,7 +801,7 @@ setup_arch(char **cmdline_p)
if (MACHINE_IS_VM)
pr_info("Linux is running as a z/VM "
"guest operating system in 31-bit mode\n");
- else
+ else if (MACHINE_IS_LPAR)
pr_info("Linux is running natively in 31-bit mode\n");
if (MACHINE_HAS_IEEE)
pr_info("The hardware system has IEEE compatible "
@@ -818,7 +815,7 @@ setup_arch(char **cmdline_p)
"guest operating system in 64-bit mode\n");
else if (MACHINE_IS_KVM)
pr_info("Linux is running under KVM in 64-bit mode\n");
- else
+ else if (MACHINE_IS_LPAR)
pr_info("Linux is running natively in 64-bit mode\n");
#endif /* CONFIG_64BIT */
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 76a6fdd46c45..8b10127c00ad 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -36,6 +36,7 @@
#include <linux/cpu.h>
#include <linux/timex.h>
#include <linux/bootmem.h>
+#include <asm/asm-offsets.h>
#include <asm/ipl.h>
#include <asm/setup.h>
#include <asm/sigp.h>
@@ -53,7 +54,7 @@
#include "entry.h"
/* logical cpu to cpu address */
-int __cpu_logical_map[NR_CPUS];
+unsigned short __cpu_logical_map[NR_CPUS];
static struct task_struct *current_set[NR_CPUS];
@@ -72,13 +73,13 @@ static int cpu_management;
static DEFINE_PER_CPU(struct cpu, cpu_devices);
-static void smp_ext_bitcall(int, ec_bit_sig);
+static void smp_ext_bitcall(int, int);
-static int cpu_stopped(int cpu)
+static int raw_cpu_stopped(int cpu)
{
- __u32 status;
+ u32 status;
- switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
+ switch (raw_sigp_ps(&status, 0, cpu, sigp_sense)) {
case sigp_status_stored:
/* Check for stopped and check stop state */
if (status & 0x50)
@@ -90,6 +91,44 @@ static int cpu_stopped(int cpu)
return 0;
}
+static inline int cpu_stopped(int cpu)
+{
+ return raw_cpu_stopped(cpu_logical_map(cpu));
+}
+
+void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
+{
+ struct _lowcore *lc, *current_lc;
+ struct stack_frame *sf;
+ struct pt_regs *regs;
+ unsigned long sp;
+
+ if (smp_processor_id() == 0)
+ func(data);
+ __load_psw_mask(PSW_BASE_BITS | PSW_DEFAULT_KEY);
+ /* Disable lowcore protection */
+ __ctl_clear_bit(0, 28);
+ current_lc = lowcore_ptr[smp_processor_id()];
+ lc = lowcore_ptr[0];
+ if (!lc)
+ lc = current_lc;
+ lc->restart_psw.mask = PSW_BASE_BITS | PSW_DEFAULT_KEY;
+ lc->restart_psw.addr = PSW_ADDR_AMODE | (unsigned long) smp_restart_cpu;
+ if (!cpu_online(0))
+ smp_switch_to_cpu(func, data, 0, stap(), __cpu_logical_map[0]);
+ while (sigp(0, sigp_stop_and_store_status) == sigp_busy)
+ cpu_relax();
+ sp = lc->panic_stack;
+ sp -= sizeof(struct pt_regs);
+ regs = (struct pt_regs *) sp;
+ memcpy(&regs->gprs, &current_lc->gpregs_save_area, sizeof(regs->gprs));
+ regs->psw = lc->psw_save_area;
+ sp -= STACK_FRAME_OVERHEAD;
+ sf = (struct stack_frame *) sp;
+ sf->back_chain = regs->gprs[15];
+ smp_switch_to_cpu(func, data, sp, stap(), __cpu_logical_map[0]);
+}
+
void smp_send_stop(void)
{
int cpu, rc;
@@ -103,7 +142,7 @@ void smp_send_stop(void)
if (cpu == smp_processor_id())
continue;
do {
- rc = signal_processor(cpu, sigp_stop);
+ rc = sigp(cpu, sigp_stop);
} while (rc == sigp_busy);
while (!cpu_stopped(cpu))
@@ -139,13 +178,13 @@ static void do_ext_call_interrupt(__u16 code)
* Send an external call sigp to another cpu and return without waiting
* for its completion.
*/
-static void smp_ext_bitcall(int cpu, ec_bit_sig sig)
+static void smp_ext_bitcall(int cpu, int sig)
{
/*
* Set signaling bit in lowcore of target cpu and kick it
*/
set_bit(sig, (unsigned long *) &lowcore_ptr[cpu]->ext_call_fast);
- while (signal_processor(cpu, sigp_emergency_signal) == sigp_busy)
+ while (sigp(cpu, sigp_emergency_signal) == sigp_busy)
udelay(10);
}
@@ -239,24 +278,8 @@ void smp_ctl_clear_bit(int cr, int bit)
}
EXPORT_SYMBOL(smp_ctl_clear_bit);
-/*
- * In early ipl state a temp. logically cpu number is needed, so the sigp
- * functions can be used to sense other cpus. Since NR_CPUS is >= 2 on
- * CONFIG_SMP and the ipl cpu is logical cpu 0, it must be 1.
- */
-#define CPU_INIT_NO 1
-
#ifdef CONFIG_ZFCPDUMP
-/*
- * zfcpdump_prefix_array holds prefix registers for the following scenario:
- * 64 bit zfcpdump kernel and 31 bit kernel which is to be dumped. We have to
- * save its prefix registers, since they get lost, when switching from 31 bit
- * to 64 bit.
- */
-unsigned int zfcpdump_prefix_array[NR_CPUS + 1] \
- __attribute__((__section__(".data")));
-
static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
{
if (ipl_info.type != IPL_TYPE_FCP_DUMP)
@@ -266,21 +289,15 @@ static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
"the dump\n", cpu, NR_CPUS - 1);
return;
}
- zfcpdump_save_areas[cpu] = kmalloc(sizeof(union save_area), GFP_KERNEL);
- __cpu_logical_map[CPU_INIT_NO] = (__u16) phy_cpu;
- while (signal_processor(CPU_INIT_NO, sigp_stop_and_store_status) ==
- sigp_busy)
+ zfcpdump_save_areas[cpu] = kmalloc(sizeof(struct save_area), GFP_KERNEL);
+ while (raw_sigp(phy_cpu, sigp_stop_and_store_status) == sigp_busy)
cpu_relax();
memcpy(zfcpdump_save_areas[cpu],
(void *)(unsigned long) store_prefix() + SAVE_AREA_BASE,
- SAVE_AREA_SIZE);
-#ifdef CONFIG_64BIT
- /* copy original prefix register */
- zfcpdump_save_areas[cpu]->s390x.pref_reg = zfcpdump_prefix_array[cpu];
-#endif
+ sizeof(struct save_area));
}
-union save_area *zfcpdump_save_areas[NR_CPUS + 1];
+struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
EXPORT_SYMBOL_GPL(zfcpdump_save_areas);
#else
@@ -389,8 +406,7 @@ static void __init smp_detect_cpus(void)
for (cpu = 0; cpu <= MAX_CPU_ADDRESS; cpu++) {
if (cpu == boot_cpu_addr)
continue;
- __cpu_logical_map[CPU_INIT_NO] = cpu;
- if (!cpu_stopped(CPU_INIT_NO))
+ if (!raw_cpu_stopped(cpu))
continue;
smp_get_save_area(c_cpus, cpu);
c_cpus++;
@@ -413,8 +429,7 @@ static void __init smp_detect_cpus(void)
cpu_addr = info->cpu[cpu].address;
if (cpu_addr == boot_cpu_addr)
continue;
- __cpu_logical_map[CPU_INIT_NO] = cpu_addr;
- if (!cpu_stopped(CPU_INIT_NO)) {
+ if (!raw_cpu_stopped(cpu_addr)) {
s_cpus++;
continue;
}
@@ -533,18 +548,18 @@ static void smp_free_lowcore(int cpu)
/* Upping and downing of CPUs */
int __cpuinit __cpu_up(unsigned int cpu)
{
- struct task_struct *idle;
struct _lowcore *cpu_lowcore;
+ struct task_struct *idle;
struct stack_frame *sf;
- sigp_ccode ccode;
u32 lowcore;
+ int ccode;
if (smp_cpu_state[cpu] != CPU_STATE_CONFIGURED)
return -EIO;
if (smp_alloc_lowcore(cpu))
return -ENOMEM;
do {
- ccode = signal_processor(cpu, sigp_initial_cpu_reset);
+ ccode = sigp(cpu, sigp_initial_cpu_reset);
if (ccode == sigp_busy)
udelay(10);
if (ccode == sigp_not_operational)
@@ -552,7 +567,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
} while (ccode == sigp_busy);
lowcore = (u32)(unsigned long)lowcore_ptr[cpu];
- while (signal_processor_p(lowcore, cpu, sigp_set_prefix) == sigp_busy)
+ while (sigp_p(lowcore, cpu, sigp_set_prefix) == sigp_busy)
udelay(10);
idle = current_set[cpu];
@@ -578,7 +593,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
cpu_lowcore->ftrace_func = S390_lowcore.ftrace_func;
eieio();
- while (signal_processor(cpu, sigp_restart) == sigp_busy)
+ while (sigp(cpu, sigp_restart) == sigp_busy)
udelay(10);
while (!cpu_online(cpu))
@@ -640,7 +655,7 @@ void __cpu_die(unsigned int cpu)
/* Wait until target cpu is down */
while (!cpu_stopped(cpu))
cpu_relax();
- while (signal_processor_p(0, cpu, sigp_set_prefix) == sigp_busy)
+ while (sigp_p(0, cpu, sigp_set_prefix) == sigp_busy)
udelay(10);
smp_free_lowcore(cpu);
pr_info("Processor %d stopped\n", cpu);
@@ -649,7 +664,7 @@ void __cpu_die(unsigned int cpu)
void cpu_die(void)
{
idle_task_exit();
- while (signal_processor(smp_processor_id(), sigp_stop) == sigp_busy)
+ while (sigp(smp_processor_id(), sigp_stop) == sigp_busy)
cpu_relax();
for (;;);
}
@@ -765,7 +780,8 @@ static ssize_t cpu_configure_store(struct sys_device *dev,
get_online_cpus();
mutex_lock(&smp_cpu_state_mutex);
rc = -EBUSY;
- if (cpu_online(cpu))
+ /* disallow configuration changes of online cpus and cpu 0 */
+ if (cpu_online(cpu) || cpu == 0)
goto out;
rc = 0;
switch (val) {
diff --git a/arch/s390/kernel/switch_cpu.S b/arch/s390/kernel/switch_cpu.S
new file mode 100644
index 000000000000..469f11b574fa
--- /dev/null
+++ b/arch/s390/kernel/switch_cpu.S
@@ -0,0 +1,58 @@
+/*
+ * 31-bit switch cpu code
+ *
+ * Copyright IBM Corp. 2009
+ *
+ */
+
+#include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
+
+# smp_switch_to_cpu switches to destination cpu and executes the passed function
+# Parameter: %r2 - function to call
+# %r3 - function parameter
+# %r4 - stack poiner
+# %r5 - current cpu
+# %r6 - destination cpu
+
+ .section .text
+ .align 4
+ .globl smp_switch_to_cpu
+smp_switch_to_cpu:
+ stm %r6,%r15,__SF_GPRS(%r15)
+ lr %r1,%r15
+ ahi %r15,-STACK_FRAME_OVERHEAD
+ st %r1,__SF_BACKCHAIN(%r15)
+ basr %r13,0
+0: la %r1,.gprregs_addr-0b(%r13)
+ l %r1,0(%r1)
+ stm %r0,%r15,0(%r1)
+1: sigp %r0,%r6,__SIGP_RESTART /* start destination CPU */
+ brc 2,1b /* busy, try again */
+2: sigp %r0,%r5,__SIGP_STOP /* stop current CPU */
+ brc 2,2b /* busy, try again */
+3: j 3b
+
+ .globl smp_restart_cpu
+smp_restart_cpu:
+ basr %r13,0
+0: la %r1,.gprregs_addr-0b(%r13)
+ l %r1,0(%r1)
+ lm %r0,%r15,0(%r1)
+1: sigp %r0,%r5,__SIGP_SENSE /* Wait for calling CPU */
+ brc 10,1b /* busy, accepted (status 0), running */
+ tmll %r0,0x40 /* Test if calling CPU is stopped */
+ jz 1b
+ ltr %r4,%r4 /* New stack ? */
+ jz 1f
+ lr %r15,%r4
+1: basr %r14,%r2
+
+.gprregs_addr:
+ .long .gprregs
+
+ .section .data,"aw",@progbits
+.gprregs:
+ .rept 16
+ .long 0
+ .endr
diff --git a/arch/s390/kernel/switch_cpu64.S b/arch/s390/kernel/switch_cpu64.S
new file mode 100644
index 000000000000..d94aacc898cb
--- /dev/null
+++ b/arch/s390/kernel/switch_cpu64.S
@@ -0,0 +1,51 @@
+/*
+ * 64-bit switch cpu code
+ *
+ * Copyright IBM Corp. 2009
+ *
+ */
+
+#include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
+
+# smp_switch_to_cpu switches to destination cpu and executes the passed function
+# Parameter: %r2 - function to call
+# %r3 - function parameter
+# %r4 - stack poiner
+# %r5 - current cpu
+# %r6 - destination cpu
+
+ .section .text
+ .align 4
+ .globl smp_switch_to_cpu
+smp_switch_to_cpu:
+ stmg %r6,%r15,__SF_GPRS(%r15)
+ lgr %r1,%r15
+ aghi %r15,-STACK_FRAME_OVERHEAD
+ stg %r1,__SF_BACKCHAIN(%r15)
+ larl %r1,.gprregs
+ stmg %r0,%r15,0(%r1)
+1: sigp %r0,%r6,__SIGP_RESTART /* start destination CPU */
+ brc 2,1b /* busy, try again */
+2: sigp %r0,%r5,__SIGP_STOP /* stop current CPU */
+ brc 2,2b /* busy, try again */
+3: j 3b
+
+ .globl smp_restart_cpu
+smp_restart_cpu:
+ larl %r1,.gprregs
+ lmg %r0,%r15,0(%r1)
+1: sigp %r0,%r5,__SIGP_SENSE /* Wait for calling CPU */
+ brc 10,1b /* busy, accepted (status 0), running */
+ tmll %r0,0x40 /* Test if calling CPU is stopped */
+ jz 1b
+ ltgr %r4,%r4 /* New stack ? */
+ jz 1f
+ lgr %r15,%r4
+1: basr %r14,%r2
+
+ .section .data,"aw",@progbits
+.gprregs:
+ .rept 16
+ .quad 0
+ .endr
diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S
index 0c26cc1898ec..b354427e03b7 100644
--- a/arch/s390/kernel/swsusp_asm64.S
+++ b/arch/s390/kernel/swsusp_asm64.S
@@ -176,7 +176,7 @@ pgm_check_entry:
cgr %r1,%r2
je restore_registers /* r1 = r2 -> nothing to do */
larl %r4,.Lrestart_suspend_psw /* Set new restart PSW */
- mvc __LC_RESTART_PSW(16,%r0),0(%r4)
+ mvc __LC_RST_NEW_PSW(16,%r0),0(%r4)
3:
sigp %r9,%r1,__SIGP_INITIAL_CPU_RESET
brc 8,4f /* accepted */
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 65065ac48ed3..a8f93f1705ad 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -51,14 +51,6 @@
#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 sched_clock_base_cc = -1; /* Force to data section. */
EXPORT_SYMBOL_GPL(sched_clock_base_cc);
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 5f99e66c51c3..6bc9c197aa91 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -23,6 +23,7 @@
#include <linux/security.h>
#include <linux/bootmem.h>
#include <linux/compat.h>
+#include <asm/asm-offsets.h>
#include <asm/pgtable.h>
#include <asm/system.h>
#include <asm/processor.h>
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index 8300309698fa..9e4c84187cf5 100644
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -39,7 +39,7 @@ static int __diag_ipl_functions(struct kvm_vcpu *vcpu)
vcpu->run->s390_reset_flags = 0;
break;
default:
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
@@ -62,6 +62,6 @@ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu)
case 0x308:
return __diag_ipl_functions(vcpu);
default:
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
}
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index b40096494e46..3ddc30895e31 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -32,7 +32,7 @@ static int handle_lctlg(struct kvm_vcpu *vcpu)
vcpu->stat.instruction_lctlg++;
if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f)
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
useraddr = disp2;
if (base2)
@@ -138,7 +138,7 @@ static int handle_stop(struct kvm_vcpu *vcpu)
rc = __kvm_s390_vcpu_store_status(vcpu,
KVM_S390_STORE_STATUS_NOADDR);
if (rc >= 0)
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
}
if (vcpu->arch.local_int.action_bits & ACTION_RELOADVCPU_ON_STOP) {
@@ -150,7 +150,7 @@ static int handle_stop(struct kvm_vcpu *vcpu)
if (vcpu->arch.local_int.action_bits & ACTION_STOP_ON_STOP) {
vcpu->arch.local_int.action_bits &= ~ACTION_STOP_ON_STOP;
VCPU_EVENT(vcpu, 3, "%s", "cpu stopped");
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
}
spin_unlock_bh(&vcpu->arch.local_int.lock);
@@ -171,9 +171,9 @@ static int handle_validity(struct kvm_vcpu *vcpu)
2*PAGE_SIZE);
if (rc)
/* user will receive sigsegv, exit to user */
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
} else
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
if (rc)
VCPU_EVENT(vcpu, 2, "unhandled validity intercept code %d",
@@ -189,7 +189,7 @@ static int handle_instruction(struct kvm_vcpu *vcpu)
handler = instruction_handlers[vcpu->arch.sie_block->ipa >> 8];
if (handler)
return handler(vcpu);
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
static int handle_prog(struct kvm_vcpu *vcpu)
@@ -206,7 +206,7 @@ static int handle_instruction_and_prog(struct kvm_vcpu *vcpu)
rc = handle_instruction(vcpu);
rc2 = handle_prog(vcpu);
- if (rc == -ENOTSUPP)
+ if (rc == -EOPNOTSUPP)
vcpu->arch.sie_block->icptcode = 0x04;
if (rc)
return rc;
@@ -231,9 +231,9 @@ int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu)
u8 code = vcpu->arch.sie_block->icptcode;
if (code & 3 || (code >> 2) >= ARRAY_SIZE(intercept_funcs))
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
func = intercept_funcs[code >> 2];
if (func)
return func(vcpu);
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 43486c2408e1..834774d8d5f3 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -10,12 +10,12 @@
* Author(s): Carsten Otte <cotte@de.ibm.com>
*/
-#include <asm/lowcore.h>
-#include <asm/uaccess.h>
-#include <linux/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/kvm_host.h>
+#include <linux/hrtimer.h>
#include <linux/signal.h>
+#include <asm/asm-offsets.h>
+#include <asm/uaccess.h>
#include "kvm-s390.h"
#include "gaccess.h"
@@ -187,8 +187,8 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
if (rc == -EFAULT)
exception = 1;
- rc = put_guest_u64(vcpu, __LC_PFAULT_INTPARM,
- inti->ext.ext_params2);
+ rc = put_guest_u64(vcpu, __LC_EXT_PARAMS2,
+ inti->ext.ext_params2);
if (rc == -EFAULT)
exception = 1;
break;
@@ -342,7 +342,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
if (psw_interrupts_disabled(vcpu)) {
VCPU_EVENT(vcpu, 3, "%s", "disabled wait");
__unset_cpu_idle(vcpu);
- return -ENOTSUPP; /* disabled wait */
+ return -EOPNOTSUPP; /* disabled wait */
}
if (psw_extint_disabled(vcpu) ||
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f8bcaefd7d34..3fa0a10e4668 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -23,6 +23,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/timer.h>
+#include <asm/asm-offsets.h>
#include <asm/lowcore.h>
#include <asm/pgtable.h>
#include <asm/nmi.h>
@@ -543,7 +544,7 @@ rerun_vcpu:
rc = -EINTR;
}
- if (rc == -ENOTSUPP) {
+ if (rc == -EOPNOTSUPP) {
/* intercept cannot be handled in-kernel, prepare kvm-run */
kvm_run->exit_reason = KVM_EXIT_S390_SIEIC;
kvm_run->s390_sieic.icptcode = vcpu->arch.sie_block->icptcode;
@@ -603,45 +604,45 @@ int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr)
} else
prefix = 0;
- if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, fp_regs),
+ if (__guestcopy(vcpu, addr + offsetof(struct save_area, fp_regs),
vcpu->arch.guest_fpregs.fprs, 128, prefix))
return -EFAULT;
- if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, gp_regs),
+ if (__guestcopy(vcpu, addr + offsetof(struct save_area, gp_regs),
vcpu->arch.guest_gprs, 128, prefix))
return -EFAULT;
- if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, psw),
+ if (__guestcopy(vcpu, addr + offsetof(struct save_area, psw),
&vcpu->arch.sie_block->gpsw, 16, prefix))
return -EFAULT;
- if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, pref_reg),
+ if (__guestcopy(vcpu, addr + offsetof(struct save_area, pref_reg),
&vcpu->arch.sie_block->prefix, 4, prefix))
return -EFAULT;
if (__guestcopy(vcpu,
- addr + offsetof(struct save_area_s390x, fp_ctrl_reg),
+ addr + offsetof(struct save_area, fp_ctrl_reg),
&vcpu->arch.guest_fpregs.fpc, 4, prefix))
return -EFAULT;
- if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, tod_reg),
+ if (__guestcopy(vcpu, addr + offsetof(struct save_area, tod_reg),
&vcpu->arch.sie_block->todpr, 4, prefix))
return -EFAULT;
- if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, timer),
+ if (__guestcopy(vcpu, addr + offsetof(struct save_area, timer),
&vcpu->arch.sie_block->cputm, 8, prefix))
return -EFAULT;
- if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, clk_cmp),
+ if (__guestcopy(vcpu, addr + offsetof(struct save_area, clk_cmp),
&vcpu->arch.sie_block->ckc, 8, prefix))
return -EFAULT;
- if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, acc_regs),
+ if (__guestcopy(vcpu, addr + offsetof(struct save_area, acc_regs),
&vcpu->arch.guest_acrs, 64, prefix))
return -EFAULT;
if (__guestcopy(vcpu,
- addr + offsetof(struct save_area_s390x, ctrl_regs),
+ addr + offsetof(struct save_area, ctrl_regs),
&vcpu->arch.sie_block->gcr, 128, prefix))
return -EFAULT;
return 0;
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index d426aac8095d..28c55677eb39 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -323,5 +323,5 @@ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu)
else
return handler(vcpu);
}
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 15ee1111de58..241a48459b66 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -172,7 +172,7 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
rc = 0; /* order accepted */
break;
default:
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
}
return rc;
}
@@ -293,7 +293,7 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu)
vcpu->stat.instruction_sigp_restart++;
/* user space must know about restart */
default:
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
if (rc < 0)
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 97975ec7a274..cd54a1c352af 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -2,7 +2,7 @@
# Makefile for s390-specific library files..
#
-lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
+lib-y += delay.o string.o uaccess_std.o uaccess_pt.o usercopy.o
obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o
lib-$(CONFIG_64BIT) += uaccess_mvcos.o
lib-$(CONFIG_SMP) += spinlock.o
diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index cff327f109a8..91754ffb9203 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -43,16 +43,24 @@ void arch_spin_lock_wait(arch_spinlock_t *lp)
{
int count = spin_retry;
unsigned int cpu = ~smp_processor_id();
+ unsigned int owner;
while (1) {
- if (count-- <= 0) {
- unsigned int owner = lp->owner_cpu;
- if (owner != 0)
- _raw_yield_cpu(~owner);
- count = spin_retry;
+ owner = lp->owner_cpu;
+ if (!owner || smp_vcpu_scheduled(~owner)) {
+ for (count = spin_retry; count > 0; count--) {
+ if (arch_spin_is_locked(lp))
+ continue;
+ if (_raw_compare_and_swap(&lp->owner_cpu, 0,
+ cpu) == 0)
+ return;
+ }
+ if (MACHINE_IS_LPAR)
+ continue;
}
- if (arch_spin_is_locked(lp))
- continue;
+ owner = lp->owner_cpu;
+ if (owner)
+ _raw_yield_cpu(~owner);
if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
return;
}
@@ -63,17 +71,27 @@ void arch_spin_lock_wait_flags(arch_spinlock_t *lp, unsigned long flags)
{
int count = spin_retry;
unsigned int cpu = ~smp_processor_id();
+ unsigned int owner;
local_irq_restore(flags);
while (1) {
- if (count-- <= 0) {
- unsigned int owner = lp->owner_cpu;
- if (owner != 0)
- _raw_yield_cpu(~owner);
- count = spin_retry;
+ owner = lp->owner_cpu;
+ if (!owner || smp_vcpu_scheduled(~owner)) {
+ for (count = spin_retry; count > 0; count--) {
+ if (arch_spin_is_locked(lp))
+ continue;
+ local_irq_disable();
+ if (_raw_compare_and_swap(&lp->owner_cpu, 0,
+ cpu) == 0)
+ return;
+ local_irq_restore(flags);
+ }
+ if (MACHINE_IS_LPAR)
+ continue;
}
- if (arch_spin_is_locked(lp))
- continue;
+ owner = lp->owner_cpu;
+ if (owner)
+ _raw_yield_cpu(~owner);
local_irq_disable();
if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
return;
@@ -100,8 +118,11 @@ EXPORT_SYMBOL(arch_spin_trylock_retry);
void arch_spin_relax(arch_spinlock_t *lock)
{
unsigned int cpu = lock->owner_cpu;
- if (cpu != 0)
- _raw_yield_cpu(~cpu);
+ if (cpu != 0) {
+ if (MACHINE_IS_VM || MACHINE_IS_KVM ||
+ !smp_vcpu_scheduled(~cpu))
+ _raw_yield_cpu(~cpu);
+ }
}
EXPORT_SYMBOL(arch_spin_relax);
diff --git a/arch/s390/lib/usercopy.c b/arch/s390/lib/usercopy.c
new file mode 100644
index 000000000000..14b363fec8a2
--- /dev/null
+++ b/arch/s390/lib/usercopy.c
@@ -0,0 +1,8 @@
+#include <linux/module.h>
+#include <linux/bug.h>
+
+void copy_from_user_overflow(void)
+{
+ WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 5c8457129603..6409fd57eb04 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -309,7 +309,7 @@ query_segment_type (struct dcss_segment *seg)
}
#endif
if (qout->segcnt > 6) {
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
goto out_free;
}
@@ -324,11 +324,11 @@ query_segment_type (struct dcss_segment *seg)
for (i=0; i<qout->segcnt; i++) {
if (((qout->range[i].start & 0xff) != SEG_TYPE_EW) &&
((qout->range[i].start & 0xff) != SEG_TYPE_EN)) {
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
goto out_free;
}
if (start != qout->range[i].start >> PAGE_SHIFT) {
- rc = -ENOTSUPP;
+ rc = -EOPNOTSUPP;
goto out_free;
}
start = (qout->range[i].end >> PAGE_SHIFT) + 1;
@@ -357,7 +357,7 @@ query_segment_type (struct dcss_segment *seg)
* -ENOSYS : we are not running on VM
* -EIO : could not perform query diagnose
* -ENOENT : no such segment
- * -ENOTSUPP: multi-part segment cannot be used with linux
+ * -EOPNOTSUPP: multi-part segment cannot be used with linux
* -ENOMEM : out of memory
* 0 .. 6 : type of segment as defined in include/asm-s390/extmem.h
*/
@@ -515,7 +515,7 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
* -ENOSYS : we are not running on VM
* -EIO : could not perform query or load diagnose
* -ENOENT : no such segment
- * -ENOTSUPP: multi-part segment cannot be used with linux
+ * -EOPNOTSUPP: multi-part segment cannot be used with linux
* -ENOSPC : segment cannot be used (overlaps with storage)
* -EBUSY : segment can temporarily not be used (overlaps with dcss)
* -ERANGE : segment cannot be used (exceeds kernel mapping range)
@@ -742,7 +742,7 @@ void segment_warning(int rc, char *seg_name)
pr_err("Loading or querying DCSS %s resulted in a "
"hardware error\n", seg_name);
break;
- case -ENOTSUPP:
+ case -EOPNOTSUPP:
pr_err("DCSS %s has multiple page ranges and cannot be "
"loaded or queried\n", seg_name);
break;
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index fc102e70d9c2..3040d7c78fe0 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -30,6 +30,7 @@
#include <linux/kprobes.h>
#include <linux/uaccess.h>
#include <linux/hugetlb.h>
+#include <asm/asm-offsets.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/s390_ext.h>
@@ -59,15 +60,13 @@ static inline int notify_page_fault(struct pt_regs *regs)
{
int ret = 0;
-#ifdef CONFIG_KPROBES
/* kprobe_running() needs smp_processor_id() */
- if (!user_mode(regs)) {
+ if (kprobes_built_in() && !user_mode(regs)) {
preempt_disable();
if (kprobe_running() && kprobe_fault_handler(regs, 14))
ret = 1;
preempt_enable();
}
-#endif
return ret;
}
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 765647952221..d5865e4024ce 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -143,33 +143,34 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
}
#endif
-void free_initmem(void)
+void free_init_pages(char *what, unsigned long begin, unsigned long end)
{
- unsigned long addr;
+ unsigned long addr = begin;
- addr = (unsigned long)(&__init_begin);
- for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
+ if (begin >= end)
+ return;
+ for (; addr < end; addr += PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));
init_page_count(virt_to_page(addr));
- memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
+ memset((void *)(addr & PAGE_MASK), POISON_FREE_INITMEM,
+ PAGE_SIZE);
free_page(addr);
totalram_pages++;
- }
- printk ("Freeing unused kernel memory: %ldk freed\n",
- ((unsigned long)&__init_end - (unsigned long)&__init_begin) >> 10);
+ }
+ printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
+}
+
+void free_initmem(void)
+{
+ free_init_pages("unused kernel memory",
+ (unsigned long)&__init_begin,
+ (unsigned long)&__init_end);
}
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- if (start < end)
- printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- }
+ free_init_pages("initrd memory", start, end);
}
#endif