From c73028a028876f7fd72ec0e114b0226d17e917d3 Mon Sep 17 00:00:00 2001 From: matt mooney Date: Fri, 14 Jan 2011 06:12:32 -0800 Subject: s390: change to new flag variable Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by: matt mooney Acked-by: WANG Cong Signed-off-by: Michal Marek --- arch/s390/boot/Makefile | 2 +- arch/s390/kvm/Makefile | 2 +- arch/s390/math-emu/Makefile | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile index 8800cf090694..635d677d3281 100644 --- a/arch/s390/boot/Makefile +++ b/arch/s390/boot/Makefile @@ -6,7 +6,7 @@ COMPILE_VERSION := __linux_compile_version_id__`hostname | \ tr -c '[0-9A-Za-z]' '_'`__`date | \ tr -c '[0-9A-Za-z]' '_'`_t -EXTRA_CFLAGS := -DCOMPILE_VERSION=$(COMPILE_VERSION) -gstabs -I. +ccflags-y := -DCOMPILE_VERSION=$(COMPILE_VERSION) -gstabs -I. targets := image targets += bzImage diff --git a/arch/s390/kvm/Makefile b/arch/s390/kvm/Makefile index e5221ec0b8e3..860d26514c08 100644 --- a/arch/s390/kvm/Makefile +++ b/arch/s390/kvm/Makefile @@ -8,7 +8,7 @@ common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o) -EXTRA_CFLAGS += -Ivirt/kvm -Iarch/s390/kvm +ccflags-y := -Ivirt/kvm -Iarch/s390/kvm kvm-objs := $(common-objs) kvm-s390.o sie64a.o intercept.o interrupt.o priv.o sigp.o diag.o obj-$(CONFIG_KVM) += kvm.o diff --git a/arch/s390/math-emu/Makefile b/arch/s390/math-emu/Makefile index c84890341052..51d399549f60 100644 --- a/arch/s390/math-emu/Makefile +++ b/arch/s390/math-emu/Makefile @@ -4,4 +4,4 @@ obj-$(CONFIG_MATHEMU) := math.o -EXTRA_CFLAGS := -I$(src) -Iinclude/math-emu -w +ccflags-y := -I$(src) -Iinclude/math-emu -w -- cgit v1.2.2 From 3e50594e8e72932ad4cfcb0b3cbdf58fc3bce416 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 22 Mar 2011 16:33:50 -0700 Subject: add the common dma_addr_t typedef to include/linux/types.h All architectures can use the common dma_addr_t typedef now. We can remove the arch specific dma_addr_t. Signed-off-by: FUJITA Tomonori Acked-by: Arnd Bergmann Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Ivan Kokshaysky Cc: Richard Henderson Cc: Matt Turner Cc: "Luck, Tony" Cc: Ralf Baechle Cc: Benjamin Herrenschmidt Cc: Heiko Carstens Cc: Martin Schwidefsky Cc: Chris Metcalf Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/include/asm/types.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h index 04d6b95a89c6..f7f6ae6bed8f 100644 --- a/arch/s390/include/asm/types.h +++ b/arch/s390/include/asm/types.h @@ -31,12 +31,6 @@ typedef __signed__ long saddr_t; #ifndef __ASSEMBLY__ typedef u64 dma64_addr_t; -#ifdef __s390x__ -/* DMA addresses come in 32-bit and 64-bit flavours. */ -typedef u64 dma_addr_t; -#else -typedef u32 dma_addr_t; -#endif #ifndef __s390x__ typedef union { -- cgit v1.2.2 From 69ac43b05eef4b8555e84ad51ceb6c58b5a3bc75 Mon Sep 17 00:00:00 2001 From: Chen Liu Date: Wed, 23 Mar 2011 10:14:58 +0100 Subject: [S390] early: Fix possible overlapping data buffer This patch fixed bugzilla #12965: https://bugzilla.kernel.org/show_bug.cgi?id=12965 The original code contains some inproper use of sprintf function where a buffer is used both as input string as well as output string. It should remember the written bytes in the previous and use that as the offset for later writing. Also replace sprintf with snprintf. Signed-off-by: Chen Liu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/early.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 3b7e7dddc324..668138ee85d9 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -94,6 +94,7 @@ static noinline __init void create_kernel_nss(void) unsigned int sinitrd_pfn, einitrd_pfn; #endif int response; + int hlen; size_t len; char *savesys_ptr; char defsys_cmd[DEFSYS_CMD_SIZE]; @@ -124,22 +125,24 @@ static noinline __init void create_kernel_nss(void) end_pfn = PFN_UP(__pa(&_end)); min_size = end_pfn << 2; - sprintf(defsys_cmd, "DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X", - kernel_nss_name, stext_pfn - 1, stext_pfn, eshared_pfn - 1, - eshared_pfn, end_pfn); + hlen = snprintf(defsys_cmd, DEFSYS_CMD_SIZE, + "DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X", + kernel_nss_name, stext_pfn - 1, stext_pfn, + eshared_pfn - 1, eshared_pfn, end_pfn); #ifdef CONFIG_BLK_DEV_INITRD if (INITRD_START && INITRD_SIZE) { sinitrd_pfn = PFN_DOWN(__pa(INITRD_START)); einitrd_pfn = PFN_UP(__pa(INITRD_START + INITRD_SIZE)); min_size = einitrd_pfn << 2; - sprintf(defsys_cmd, "%s EW %.5X-%.5X", defsys_cmd, - sinitrd_pfn, einitrd_pfn); + hlen += snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen, + " EW %.5X-%.5X", sinitrd_pfn, einitrd_pfn); } #endif - sprintf(defsys_cmd, "%s EW MINSIZE=%.7iK PARMREGS=0-13", - defsys_cmd, min_size); + snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen, + " EW MINSIZE=%.7iK PARMREGS=0-13", min_size); + defsys_cmd[DEFSYS_CMD_SIZE - 1] = '\0'; sprintf(savesys_cmd, "SAVESYS %s \n IPL %s", kernel_nss_name, kernel_nss_name); -- cgit v1.2.2 From 894e491e427ae40af62b871e05f9a3f80bbddb6c Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:14:59 +0100 Subject: [S390] early: limit savesys cmd string handling Use snprintf() here as well so we won't have to deal with this again. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/early.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 668138ee85d9..068f8465c4ee 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -143,8 +143,9 @@ static noinline __init void create_kernel_nss(void) snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen, " EW MINSIZE=%.7iK PARMREGS=0-13", min_size); defsys_cmd[DEFSYS_CMD_SIZE - 1] = '\0'; - sprintf(savesys_cmd, "SAVESYS %s \n IPL %s", - kernel_nss_name, kernel_nss_name); + snprintf(savesys_cmd, SAVESYS_CMD_SIZE, "SAVESYS %s \n IPL %s", + kernel_nss_name, kernel_nss_name); + savesys_cmd[SAVESYS_CMD_SIZE - 1] = '\0'; __cpcmd(defsys_cmd, NULL, 0, &response); -- cgit v1.2.2 From 984e8486c155cf53c255e2b501de91b39a049613 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:15:00 +0100 Subject: [S390] oprofile: disable hw sampling for CONFIG_32BIT Doesn't work and build for CONFIG_32BIT. So disable it. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/oprofile/Makefile | 3 ++- arch/s390/oprofile/init.c | 15 +++++++++++++-- 2 files changed, 15 insertions(+), 3 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/oprofile/Makefile b/arch/s390/oprofile/Makefile index d698cddcfbdd..524c4b615821 100644 --- a/arch/s390/oprofile/Makefile +++ b/arch/s390/oprofile/Makefile @@ -6,4 +6,5 @@ DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \ oprofilefs.o oprofile_stats.o \ timer_int.o ) -oprofile-y := $(DRIVER_OBJS) init.o backtrace.o hwsampler.o +oprofile-y := $(DRIVER_OBJS) init.o backtrace.o +oprofile-$(CONFIG_64BIT) += hwsampler.o diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 16c76def4a9d..c63d7e58352b 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -18,6 +18,11 @@ #include #include "../../../drivers/oprofile/oprof.h" + +extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth); + +#ifdef CONFIG_64BIT + #include "hwsampler.h" #define DEFAULT_INTERVAL 4096 @@ -37,8 +42,6 @@ static int hwsampler_running; /* start_mutex must be held to change */ static struct oprofile_operations timer_ops; -extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth); - static int oprofile_hwsampler_start(void) { int retval; @@ -172,14 +175,22 @@ static void oprofile_hwsampler_exit(void) hwsampler_shutdown(); } +#endif /* CONFIG_64BIT */ + int __init oprofile_arch_init(struct oprofile_operations *ops) { ops->backtrace = s390_backtrace; +#ifdef CONFIG_64BIT return oprofile_hwsampler_init(ops); +#else + return -ENODEV; +#endif } void oprofile_arch_exit(void) { +#ifdef CONFIG_64BIT oprofile_hwsampler_exit(); +#endif } -- cgit v1.2.2 From 737fd5f1f64271999b791cbe76f1f720f10e8bb8 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:15:55 +0100 Subject: [S390] wire up sys_name_to_handle_at Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.S | 9 +++++++++ arch/s390/kernel/syscalls.S | 1 + 3 files changed, 12 insertions(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 1049ef27c15e..80f27c9f7202 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -272,7 +272,8 @@ #define __NR_fanotify_init 332 #define __NR_fanotify_mark 333 #define __NR_prlimit64 334 -#define NR_syscalls 335 +#define __NR_name_to_handle_at 335 +#define NR_syscalls 336 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 8e60fb23b90d..364ed14406bb 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1877,3 +1877,12 @@ sys_prlimit64_wrapper: llgtr %r4,%r4 # const struct rlimit64 __user * llgtr %r5,%r5 # struct rlimit64 __user * jg sys_prlimit64 # branch to system call + + .globl sys_name_to_handle_at_wrapper +sys_name_to_handle_at_wrapper: + lgfr %r2,%r2 # int + llgtr %r3,%r3 # const char __user * + llgtr %r4,%r4 # struct file_handle __user * + llgtr %r5,%r5 # int __user * + lgfr %r6,%r6 # int + jg sys_name_to_handle_at diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index a8fee1b14395..1230c6e75a84 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -343,3 +343,4 @@ SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper) SYSCALL(sys_fanotify_init,sys_fanotify_init,sys_fanotify_init_wrapper) SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper) SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper) +SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */ -- cgit v1.2.2 From 5069496ec40946da413646f9cd5dcb28d9b3324f Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:15:56 +0100 Subject: [S390] wire up sys_open_by_handle_at Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.S | 7 +++++++ arch/s390/kernel/syscalls.S | 1 + 3 files changed, 10 insertions(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 80f27c9f7202..65f11efdd94c 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -273,7 +273,8 @@ #define __NR_fanotify_mark 333 #define __NR_prlimit64 334 #define __NR_name_to_handle_at 335 -#define NR_syscalls 336 +#define __NR_open_by_handle_at 336 +#define NR_syscalls 337 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 364ed14406bb..03918128bb45 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1886,3 +1886,10 @@ sys_name_to_handle_at_wrapper: llgtr %r5,%r5 # int __user * lgfr %r6,%r6 # int jg sys_name_to_handle_at + + .globl compat_sys_open_by_handle_at_wrapper +compat_sys_open_by_handle_at_wrapper: + lgfr %r2,%r2 # int + llgtr %r3,%r3 # struct file_handle __user * + lgfr %r4,%r4 # int + jg compat_sys_open_by_handle_at diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 1230c6e75a84..958744cdcaba 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -344,3 +344,4 @@ SYSCALL(sys_fanotify_init,sys_fanotify_init,sys_fanotify_init_wrapper) SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper) SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper) SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */ +SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper) -- cgit v1.2.2 From 26e8a33989183e81d6692aec1a77dffa266b91a2 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:15:57 +0100 Subject: [S390] wire up sys_clock_adjtime Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.S | 6 ++++++ arch/s390/kernel/syscalls.S | 1 + 3 files changed, 9 insertions(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index 65f11efdd94c..e00373061fc9 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -274,7 +274,8 @@ #define __NR_prlimit64 334 #define __NR_name_to_handle_at 335 #define __NR_open_by_handle_at 336 -#define NR_syscalls 337 +#define __NR_clock_adjtime 337 +#define NR_syscalls 338 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 03918128bb45..494db7f7c23c 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1893,3 +1893,9 @@ compat_sys_open_by_handle_at_wrapper: llgtr %r3,%r3 # struct file_handle __user * lgfr %r4,%r4 # int jg compat_sys_open_by_handle_at + + .globl compat_sys_clock_adjtime_wrapper +compat_sys_clock_adjtime_wrapper: + lgfr %r2,%r2 # clockid_t (int) + llgtr %r3,%r3 # struct compat_timex __user * + jg compat_sys_clock_adjtime diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 958744cdcaba..8ff300208d2d 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -345,3 +345,4 @@ SYSCALL(sys_fanotify_mark,sys_fanotify_mark,sys_fanotify_mark_wrapper) SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper) SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */ SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper) +SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper) -- cgit v1.2.2 From d0d2e31af691ed3dbb4e556bf939b86ef745e6a3 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:15:58 +0100 Subject: [S390] wire up sys_syncfs Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.S | 5 +++++ arch/s390/kernel/syscalls.S | 1 + 3 files changed, 8 insertions(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h index e00373061fc9..e82152572377 100644 --- a/arch/s390/include/asm/unistd.h +++ b/arch/s390/include/asm/unistd.h @@ -275,7 +275,8 @@ #define __NR_name_to_handle_at 335 #define __NR_open_by_handle_at 336 #define __NR_clock_adjtime 337 -#define NR_syscalls 338 +#define __NR_syncfs 338 +#define NR_syscalls 339 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 494db7f7c23c..1dc96ea08fa8 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -1899,3 +1899,8 @@ compat_sys_clock_adjtime_wrapper: lgfr %r2,%r2 # clockid_t (int) llgtr %r3,%r3 # struct compat_timex __user * jg compat_sys_clock_adjtime + + .globl sys_syncfs_wrapper +sys_syncfs_wrapper: + lgfr %r2,%r2 # int + jg sys_syncfs diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 8ff300208d2d..9c65fd4ddce0 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -346,3 +346,4 @@ SYSCALL(sys_prlimit64,sys_prlimit64,sys_prlimit64_wrapper) SYSCALL(sys_name_to_handle_at,sys_name_to_handle_at,sys_name_to_handle_at_wrapper) /* 335 */ SYSCALL(sys_open_by_handle_at,sys_open_by_handle_at,compat_sys_open_by_handle_at_wrapper) SYSCALL(sys_clock_adjtime,sys_clock_adjtime,compat_sys_clock_adjtime_wrapper) +SYSCALL(sys_syncfs,sys_syncfs,sys_syncfs_wrapper) -- cgit v1.2.2 From 71189284e61fd818547430186f524c1db54fb7c7 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:15:59 +0100 Subject: [S390] setup: simplify setup_resources() Simplify setup_resources() and make it more generic. That way it is easier to add additional resources. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/setup.c | 80 ++++++++++++++++++++---------------------------- 1 file changed, 34 insertions(+), 46 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 6f6350826c81..455345104c8c 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -102,16 +102,6 @@ EXPORT_SYMBOL(lowcore_ptr); #include -static struct resource code_resource = { - .name = "Kernel code", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, -}; - -static struct resource data_resource = { - .name = "Kernel data", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, -}; - /* * condev= and conmode= setup parameter. */ @@ -436,11 +426,25 @@ setup_lowcore(void) lowcore_ptr[0] = lc; } -static void __init -setup_resources(void) +static struct resource code_resource = { + .name = "Kernel code", + .flags = IORESOURCE_BUSY | IORESOURCE_MEM, +}; + +static struct resource data_resource = { + .name = "Kernel data", + .flags = IORESOURCE_BUSY | IORESOURCE_MEM, +}; + +static struct resource __initdata *standard_resources[] = { + &code_resource, + &data_resource, +}; + +static void __init setup_resources(void) { - struct resource *res, *sub_res; - int i; + struct resource *res, *std_res, *sub_res; + int i, j; code_resource.start = (unsigned long) &_text; code_resource.end = (unsigned long) &_etext - 1; @@ -450,7 +454,7 @@ setup_resources(void) for (i = 0; i < MEMORY_CHUNKS; i++) { if (!memory_chunk[i].size) continue; - res = alloc_bootmem_low(sizeof(struct resource)); + res = alloc_bootmem_low(sizeof(*res)); res->flags = IORESOURCE_BUSY | IORESOURCE_MEM; switch (memory_chunk[i].type) { case CHUNK_READ_WRITE: @@ -464,40 +468,24 @@ setup_resources(void) res->name = "reserved"; } res->start = memory_chunk[i].addr; - res->end = memory_chunk[i].addr + memory_chunk[i].size - 1; + res->end = res->start + memory_chunk[i].size - 1; request_resource(&iomem_resource, res); - if (code_resource.start >= res->start && - code_resource.start <= res->end && - code_resource.end > res->end) { - sub_res = alloc_bootmem_low(sizeof(struct resource)); - memcpy(sub_res, &code_resource, - sizeof(struct resource)); - sub_res->end = res->end; - code_resource.start = res->end + 1; - request_resource(res, sub_res); - } - - if (code_resource.start >= res->start && - code_resource.start <= res->end && - code_resource.end <= res->end) - request_resource(res, &code_resource); - - if (data_resource.start >= res->start && - data_resource.start <= res->end && - data_resource.end > res->end) { - sub_res = alloc_bootmem_low(sizeof(struct resource)); - memcpy(sub_res, &data_resource, - sizeof(struct resource)); - sub_res->end = res->end; - data_resource.start = res->end + 1; - request_resource(res, sub_res); + for (j = 0; j < ARRAY_SIZE(standard_resources); j++) { + std_res = standard_resources[j]; + if (std_res->start < res->start || + std_res->start > res->end) + continue; + if (std_res->end > res->end) { + sub_res = alloc_bootmem_low(sizeof(*sub_res)); + *sub_res = *std_res; + sub_res->end = res->end; + std_res->start = res->end + 1; + request_resource(res, sub_res); + } else { + request_resource(res, std_res); + } } - - if (data_resource.start >= res->start && - data_resource.start <= res->end && - data_resource.end <= res->end) - request_resource(res, &data_resource); } } -- cgit v1.2.2 From 4cc69531f91dfa1668af5e9d8efe9e3bc7b64548 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:16:00 +0100 Subject: [S390] setup: register bss section as resource Make kernel bss section visible via /proc/iomem like on other architectures. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/setup.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/s390') diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 455345104c8c..ed183c2c6168 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -436,9 +436,15 @@ static struct resource data_resource = { .flags = IORESOURCE_BUSY | IORESOURCE_MEM, }; +static struct resource bss_resource = { + .name = "Kernel bss", + .flags = IORESOURCE_BUSY | IORESOURCE_MEM, +}; + static struct resource __initdata *standard_resources[] = { &code_resource, &data_resource, + &bss_resource, }; static void __init setup_resources(void) @@ -450,6 +456,8 @@ static void __init setup_resources(void) code_resource.end = (unsigned long) &_etext - 1; data_resource.start = (unsigned long) &_etext; data_resource.end = (unsigned long) &_edata - 1; + bss_resource.start = (unsigned long) &__bss_start; + bss_resource.end = (unsigned long) &__bss_stop - 1; for (i = 0; i < MEMORY_CHUNKS; i++) { if (!memory_chunk[i].size) -- cgit v1.2.2 From 3bda058b0c39fc72188116d2fd71af08dd0fe5b0 Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Wed, 23 Mar 2011 10:16:02 +0100 Subject: [S390] ccw_driver: remove duplicate members Remove the owner and name members of struct ccw_driver and convert all drivers to store this data in the embedded struct device_driver. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/ccwdev.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index ff6f62e0ec3e..623f2fb71774 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -112,7 +112,6 @@ enum uc_todo { /** * struct ccw driver - device driver for channel attached devices - * @owner: owning module * @ids: ids supported by this driver * @probe: function called on probe * @remove: function called on remove @@ -128,10 +127,8 @@ enum uc_todo { * @restore: callback for restoring after hibernation * @uc_handler: callback for unit check handler * @driver: embedded device driver structure - * @name: device driver name */ struct ccw_driver { - struct module *owner; struct ccw_device_id *ids; int (*probe) (struct ccw_device *); void (*remove) (struct ccw_device *); @@ -147,7 +144,6 @@ struct ccw_driver { int (*restore)(struct ccw_device *); enum uc_todo (*uc_handler) (struct ccw_device *, struct irb *); struct device_driver driver; - char *name; }; extern struct ccw_device *get_ccwdev_by_busid(struct ccw_driver *cdrv, -- cgit v1.2.2 From 3c190c51f55eab691e5d096747262d2653e67de1 Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Wed, 23 Mar 2011 10:16:04 +0100 Subject: [S390] ccwgroup_driver: remove duplicate members Remove the owner and name members of struct ccwgroup_driver and convert all drivers to store this data in the embedded struct device_driver. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/ccwgroup.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index c79c1e787b86..f2ea2c56a7e1 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -29,8 +29,6 @@ struct ccwgroup_device { /** * struct ccwgroup_driver - driver for ccw group devices - * @owner: driver owner - * @name: driver name * @max_slaves: maximum number of slave devices * @driver_id: unique id * @probe: function called on probe @@ -46,8 +44,6 @@ struct ccwgroup_device { * @driver: embedded driver structure */ struct ccwgroup_driver { - struct module *owner; - char *name; int max_slaves; unsigned long driver_id; -- cgit v1.2.2 From a2c9dbe8dbb8591ae6fd142e562813cd95d06609 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:16:05 +0100 Subject: [S390] xchg/cmpxchg: move to own header file Move xchg() and cmpxchg() functions to own header file like some other architectures have done. With this we make sure that system.h now really looks like a place where everything is gathered that doesn't fit anywhere else. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/cmpxchg.h | 205 ++++++++++++++++++++++++++++++++++++++++ arch/s390/include/asm/system.h | 196 +------------------------------------- 2 files changed, 206 insertions(+), 195 deletions(-) create mode 100644 arch/s390/include/asm/cmpxchg.h (limited to 'arch/s390') diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h new file mode 100644 index 000000000000..4052df9030cb --- /dev/null +++ b/arch/s390/include/asm/cmpxchg.h @@ -0,0 +1,205 @@ +/* + * Copyright IBM Corp. 1999, 2011 + * + * Author(s): Martin Schwidefsky , + */ + +#ifndef __ASM_CMPXCHG_H +#define __ASM_CMPXCHG_H + +#include + +extern void __xchg_called_with_bad_pointer(void); + +static inline unsigned long __xchg(unsigned long x, void *ptr, int size) +{ + unsigned long addr, old; + int shift; + + switch (size) { + case 1: + addr = (unsigned long) ptr; + shift = (3 ^ (addr & 3)) << 3; + addr ^= addr & 3; + asm volatile( + " l %0,%4\n" + "0: lr 0,%0\n" + " nr 0,%3\n" + " or 0,%2\n" + " cs %0,0,%4\n" + " jl 0b\n" + : "=&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,%4\n" + "0: lr 0,%0\n" + " nr 0,%3\n" + " or 0,%2\n" + " cs %0,0,%4\n" + " jl 0b\n" + : "=&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,%3\n" + "0: cs %0,%2,%3\n" + " jl 0b\n" + : "=&d" (old), "=Q" (*(int *) ptr) + : "d" (x), "Q" (*(int *) ptr) + : "memory", "cc"); + return old; +#ifdef CONFIG_64BIT + case 8: + asm volatile( + " lg %0,%3\n" + "0: csg %0,%2,%3\n" + " jl 0b\n" + : "=&d" (old), "=m" (*(long *) ptr) + : "d" (x), "Q" (*(long *) ptr) + : "memory", "cc"); + return old; +#endif /* CONFIG_64BIT */ + } + __xchg_called_with_bad_pointer(); + return x; +} + +#define xchg(ptr, x) \ +({ \ + __typeof__(*(ptr)) __ret; \ + __ret = (__typeof__(*(ptr))) \ + __xchg((unsigned long)(x), (void *)(ptr), sizeof(*(ptr)));\ + __ret; \ +}) + +/* + * Atomic compare and exchange. Compare OLD with MEM, if identical, + * store NEW in MEM. Return the initial value in MEM. Success is + * indicated by comparing RETURN with OLD. + */ + +#define __HAVE_ARCH_CMPXCHG + +extern void __cmpxchg_called_with_bad_pointer(void); + +static inline unsigned long __cmpxchg(void *ptr, unsigned long old, + unsigned long new, int size) +{ + unsigned long addr, prev, tmp; + int shift; + + switch (size) { + case 1: + addr = (unsigned long) ptr; + shift = (3 ^ (addr & 3)) << 3; + addr ^= addr & 3; + asm volatile( + " l %0,%2\n" + "0: nr %0,%5\n" + " lr %1,%0\n" + " or %0,%3\n" + " or %1,%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), "=Q" (*(int *) ptr) + : "d" (old << shift), "d" (new << shift), + "d" (~(255 << shift)), "Q" (*(int *) ptr) + : "memory", "cc"); + return prev >> shift; + case 2: + addr = (unsigned long) ptr; + shift = (2 ^ (addr & 2)) << 3; + addr ^= addr & 2; + asm volatile( + " l %0,%2\n" + "0: nr %0,%5\n" + " lr %1,%0\n" + " or %0,%3\n" + " or %1,%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), "=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,%3,%1\n" + : "=&d" (prev), "=Q" (*(int *) ptr) + : "0" (old), "d" (new), "Q" (*(int *) ptr) + : "memory", "cc"); + return prev; +#ifdef CONFIG_64BIT + case 8: + asm volatile( + " csg %0,%3,%1\n" + : "=&d" (prev), "=Q" (*(long *) ptr) + : "0" (old), "d" (new), "Q" (*(long *) ptr) + : "memory", "cc"); + return prev; +#endif /* CONFIG_64BIT */ + } + __cmpxchg_called_with_bad_pointer(); + return old; +} + +#define cmpxchg(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr)))) + +#include + +static inline unsigned long __cmpxchg_local(void *ptr, + unsigned long old, + unsigned long new, int size) +{ + switch (size) { + case 1: + case 2: + case 4: +#ifdef CONFIG_64BIT + case 8: +#endif + return __cmpxchg(ptr, old, new, size); + default: + return __cmpxchg_local_generic(ptr, old, new, size); + } + + return old; +} + +/* + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make + * them available. + */ +#define cmpxchg_local(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr)))) +#ifdef CONFIG_64BIT +#define cmpxchg64_local(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg_local((ptr), (o), (n)); \ +}) +#else +#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) +#endif + +#endif /* __ASM_CMPXCHG_H */ diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h index 8f8d759f6a7b..d382629a0172 100644 --- a/arch/s390/include/asm/system.h +++ b/arch/s390/include/asm/system.h @@ -14,6 +14,7 @@ #include #include #include +#include #ifdef __KERNEL__ @@ -120,161 +121,6 @@ extern int memcpy_real(void *, void *, size_t); #define nop() asm volatile("nop") -#define xchg(ptr,x) \ -({ \ - __typeof__(*(ptr)) __ret; \ - __ret = (__typeof__(*(ptr))) \ - __xchg((unsigned long)(x), (void *)(ptr),sizeof(*(ptr))); \ - __ret; \ -}) - -extern void __xchg_called_with_bad_pointer(void); - -static inline unsigned long __xchg(unsigned long x, void * ptr, int size) -{ - unsigned long addr, old; - int shift; - - switch (size) { - case 1: - addr = (unsigned long) ptr; - shift = (3 ^ (addr & 3)) << 3; - addr ^= addr & 3; - asm volatile( - " l %0,%4\n" - "0: lr 0,%0\n" - " nr 0,%3\n" - " or 0,%2\n" - " cs %0,0,%4\n" - " jl 0b\n" - : "=&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,%4\n" - "0: lr 0,%0\n" - " nr 0,%3\n" - " or 0,%2\n" - " cs %0,0,%4\n" - " jl 0b\n" - : "=&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,%3\n" - "0: cs %0,%2,%3\n" - " jl 0b\n" - : "=&d" (old), "=Q" (*(int *) ptr) - : "d" (x), "Q" (*(int *) ptr) - : "memory", "cc"); - return old; -#ifdef __s390x__ - case 8: - asm volatile( - " lg %0,%3\n" - "0: csg %0,%2,%3\n" - " jl 0b\n" - : "=&d" (old), "=m" (*(long *) ptr) - : "d" (x), "Q" (*(long *) ptr) - : "memory", "cc"); - return old; -#endif /* __s390x__ */ - } - __xchg_called_with_bad_pointer(); - return x; -} - -/* - * Atomic compare and exchange. Compare OLD with MEM, if identical, - * store NEW in MEM. Return the initial value in MEM. Success is - * indicated by comparing RETURN with OLD. - */ - -#define __HAVE_ARCH_CMPXCHG 1 - -#define cmpxchg(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) - -extern void __cmpxchg_called_with_bad_pointer(void); - -static inline unsigned long -__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) -{ - unsigned long addr, prev, tmp; - int shift; - - switch (size) { - case 1: - addr = (unsigned long) ptr; - shift = (3 ^ (addr & 3)) << 3; - addr ^= addr & 3; - asm volatile( - " l %0,%2\n" - "0: nr %0,%5\n" - " lr %1,%0\n" - " or %0,%3\n" - " or %1,%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), "=Q" (*(int *) ptr) - : "d" (old << shift), "d" (new << shift), - "d" (~(255 << shift)), "Q" (*(int *) ptr) - : "memory", "cc"); - return prev >> shift; - case 2: - addr = (unsigned long) ptr; - shift = (2 ^ (addr & 2)) << 3; - addr ^= addr & 2; - asm volatile( - " l %0,%2\n" - "0: nr %0,%5\n" - " lr %1,%0\n" - " or %0,%3\n" - " or %1,%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), "=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,%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,%3,%1\n" - : "=&d" (prev), "=Q" (*(long *) ptr) - : "0" (old), "d" (new), "Q" (*(long *) ptr) - : "memory", "cc"); - return prev; -#endif /* __s390x__ */ - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - /* * Force strict CPU ordering. * And yes, this is required on UP too when we're talking @@ -353,46 +199,6 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) __ctl_load(__dummy, cr, cr); \ }) -#include - -#include - -static inline unsigned long __cmpxchg_local(volatile void *ptr, - unsigned long old, - unsigned long new, int size) -{ - switch (size) { - case 1: - case 2: - case 4: -#ifdef __s390x__ - case 8: -#endif - return __cmpxchg(ptr, old, new, size); - default: - return __cmpxchg_local_generic(ptr, old, new, size); - } - - return old; -} - -/* - * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make - * them available. - */ -#define cmpxchg_local(ptr, o, n) \ - ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ - (unsigned long)(n), sizeof(*(ptr)))) -#ifdef __s390x__ -#define cmpxchg64_local(ptr, o, n) \ - ({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg_local((ptr), (o), (n)); \ - }) -#else -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) -#endif - /* * Use to set psw mask except for the first byte which * won't be changed by this function. -- cgit v1.2.2 From 54eaae3028e6b09de0bd2232a8176fc0d0a2397a Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 23 Mar 2011 10:16:06 +0100 Subject: [S390] cmpxchg: implement cmpxchg64() We have a cmpxchg64_local() implementation but strange enough the SMP capable variant cmpxchg64() is missing. So implement it. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/cmpxchg.h | 38 +++++++++++++++++++++++++++++--------- 1 file changed, 29 insertions(+), 9 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h index 4052df9030cb..7488e52efa97 100644 --- a/arch/s390/include/asm/cmpxchg.h +++ b/arch/s390/include/asm/cmpxchg.h @@ -164,6 +164,33 @@ static inline unsigned long __cmpxchg(void *ptr, unsigned long old, ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ (unsigned long)(n), sizeof(*(ptr)))) +#ifdef CONFIG_64BIT +#define cmpxchg64(ptr, o, n) \ +({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg((ptr), (o), (n)); \ +}) +#else /* CONFIG_64BIT */ +static inline unsigned long long __cmpxchg64(void *ptr, + unsigned long long old, + unsigned long long new) +{ + register_pair rp_old = {.pair = old}; + register_pair rp_new = {.pair = new}; + + asm volatile( + " cds %0,%2,%1" + : "+&d" (rp_old), "=Q" (ptr) + : "d" (rp_new), "Q" (ptr) + : "cc"); + return rp_old.pair; +} +#define cmpxchg64(ptr, o, n) \ + ((__typeof__(*(ptr)))__cmpxchg64((ptr), \ + (unsigned long long)(o), \ + (unsigned long long)(n))) +#endif /* CONFIG_64BIT */ + #include static inline unsigned long __cmpxchg_local(void *ptr, @@ -192,14 +219,7 @@ static inline unsigned long __cmpxchg_local(void *ptr, #define cmpxchg_local(ptr, o, n) \ ((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \ (unsigned long)(n), sizeof(*(ptr)))) -#ifdef CONFIG_64BIT -#define cmpxchg64_local(ptr, o, n) \ -({ \ - BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg_local((ptr), (o), (n)); \ -}) -#else -#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) -#endif + +#define cmpxchg64_local(ptr, o, n) cmpxchg64((ptr), (o), (n)) #endif /* __ASM_CMPXCHG_H */ -- cgit v1.2.2 From 31db58b3ab432f72ea76be58b12e6ffaf627d5db Mon Sep 17 00:00:00 2001 From: Stephen Wilson Date: Sun, 13 Mar 2011 15:49:15 -0400 Subject: mm: arch: make get_gate_vma take an mm_struct instead of a task_struct Morally, the presence of a gate vma is more an attribute of a particular mm than a particular task. Moreover, dropping the dependency on task_struct will help make both existing and future operations on mm's more flexible and convenient. Signed-off-by: Stephen Wilson Reviewed-by: Michel Lespinasse Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Signed-off-by: Al Viro --- arch/s390/kernel/vdso.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index f438d74dedbd..d19f30504c63 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -347,7 +347,7 @@ int in_gate_area(struct task_struct *task, unsigned long addr) return 0; } -struct vm_area_struct *get_gate_vma(struct task_struct *tsk) +struct vm_area_struct *get_gate_vma(struct mm_struct *mm) { return NULL; } -- cgit v1.2.2 From 83b964bbf82eb13a8f31bb49ca420787fe01f7a6 Mon Sep 17 00:00:00 2001 From: Stephen Wilson Date: Sun, 13 Mar 2011 15:49:16 -0400 Subject: mm: arch: make in_gate_area take an mm_struct instead of a task_struct Morally, the question of whether an address lies in a gate vma should be asked with respect to an mm, not a particular task. Moreover, dropping the dependency on task_struct will help make existing and future operations on mm's more flexible and convenient. Signed-off-by: Stephen Wilson Reviewed-by: Michel Lespinasse Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Signed-off-by: Al Viro --- arch/s390/kernel/vdso.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index d19f30504c63..9006e966ef00 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -342,7 +342,7 @@ int in_gate_area_no_task(unsigned long addr) return 0; } -int in_gate_area(struct task_struct *task, unsigned long addr) +int in_gate_area(struct mm_struct *mm, unsigned long addr) { return 0; } -- cgit v1.2.2 From cae5d39032acf26c265f6b1dc73d7ce6ff4bc387 Mon Sep 17 00:00:00 2001 From: Stephen Wilson Date: Sun, 13 Mar 2011 15:49:17 -0400 Subject: mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm Now that gate vma's are referenced with respect to a particular mm and not a particular task it only makes sense to propagate the change to this predicate as well. Signed-off-by: Stephen Wilson Reviewed-by: Michel Lespinasse Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Signed-off-by: Al Viro --- arch/s390/kernel/vdso.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index 9006e966ef00..d73630b4fe1d 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -337,7 +337,7 @@ static int __init vdso_init(void) } arch_initcall(vdso_init); -int in_gate_area_no_task(unsigned long addr) +int in_gate_area_no_mm(unsigned long addr) { return 0; } -- cgit v1.2.2 From 50b9b475c5b3e6649c22e1d39ab3ced3dbf21758 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 23 Mar 2011 16:41:57 -0700 Subject: s390: introduce little-endian bitops Introduce little-endian bit operations by renaming native ext2 bit operations. The ext2 bit operations are kept as wrapper macros using little-endian bit operations to maintain bisectability until the conversions are finished. Signed-off-by: Akinobu Mita Cc: Arnd Bergmann Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/include/asm/bitops.h | 73 +++++++++++++++++++++++++++++++----------- 1 file changed, 54 insertions(+), 19 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 2e05972c5085..f48f9644e4b5 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -742,18 +742,42 @@ static inline int sched_find_first_bit(unsigned long *b) * 23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24 */ -#define ext2_set_bit(nr, addr) \ - __test_and_set_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr) -#define ext2_set_bit_atomic(lock, nr, addr) \ - test_and_set_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr) -#define ext2_clear_bit(nr, addr) \ - __test_and_clear_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr) -#define ext2_clear_bit_atomic(lock, nr, addr) \ - test_and_clear_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr) -#define ext2_test_bit(nr, addr) \ - test_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr) - -static inline int ext2_find_first_zero_bit(void *vaddr, unsigned int size) +static inline void __set_bit_le(unsigned long nr, void *addr) +{ + __set_bit(nr ^ (__BITOPS_WORDSIZE - 8), addr); +} + +static inline void __clear_bit_le(unsigned long nr, void *addr) +{ + __clear_bit(nr ^ (__BITOPS_WORDSIZE - 8), addr); +} + +static inline int __test_and_set_bit_le(unsigned long nr, void *addr) +{ + return __test_and_set_bit(nr ^ (__BITOPS_WORDSIZE - 8), addr); +} + +static inline int test_and_set_bit_le(unsigned long nr, void *addr) +{ + return test_and_set_bit(nr ^ (__BITOPS_WORDSIZE - 8), addr); +} + +static inline int __test_and_clear_bit_le(unsigned long nr, void *addr) +{ + return __test_and_clear_bit(nr ^ (__BITOPS_WORDSIZE - 8), addr); +} + +static inline int test_and_clear_bit_le(unsigned long nr, void *addr) +{ + return test_and_clear_bit(nr ^ (__BITOPS_WORDSIZE - 8), addr); +} + +static inline int test_bit_le(unsigned long nr, const void *addr) +{ + return test_bit(nr ^ (__BITOPS_WORDSIZE - 8), addr); +} + +static inline int find_first_zero_bit_le(void *vaddr, unsigned int size) { unsigned long bytes, bits; @@ -764,7 +788,7 @@ static inline int ext2_find_first_zero_bit(void *vaddr, unsigned int size) return (bits < size) ? bits : size; } -static inline int ext2_find_next_zero_bit(void *vaddr, unsigned long size, +static inline int find_next_zero_bit_le(void *vaddr, unsigned long size, unsigned long offset) { unsigned long *addr = vaddr, *p; @@ -790,11 +814,10 @@ static inline int ext2_find_next_zero_bit(void *vaddr, unsigned long size, size -= __BITOPS_WORDSIZE; p++; } - return offset + ext2_find_first_zero_bit(p, size); + return offset + find_first_zero_bit_le(p, size); } -static inline unsigned long ext2_find_first_bit(void *vaddr, - unsigned long size) +static inline unsigned long find_first_bit_le(void *vaddr, unsigned long size) { unsigned long bytes, bits; @@ -805,7 +828,7 @@ static inline unsigned long ext2_find_first_bit(void *vaddr, return (bits < size) ? bits : size; } -static inline int ext2_find_next_bit(void *vaddr, unsigned long size, +static inline int find_next_bit_le(void *vaddr, unsigned long size, unsigned long offset) { unsigned long *addr = vaddr, *p; @@ -831,8 +854,20 @@ static inline int ext2_find_next_bit(void *vaddr, unsigned long size, size -= __BITOPS_WORDSIZE; p++; } - return offset + ext2_find_first_bit(p, size); -} + return offset + find_first_bit_le(p, size); +} + +#define ext2_set_bit __test_and_set_bit_le +#define ext2_set_bit_atomic(lock, nr, addr) \ + test_and_set_bit_le(nr, addr) +#define ext2_clear_bit __test_and_clear_bit_le +#define ext2_clear_bit_atomic(lock, nr, addr) \ + test_and_clear_bit_le(nr, addr) +#define ext2_test_bit test_bit_le +#define ext2_find_first_zero_bit find_first_zero_bit_le +#define ext2_find_next_zero_bit find_next_zero_bit_le +#define ext2_find_first_bit find_first_bit_le +#define ext2_find_next_bit find_next_bit_le #include -- cgit v1.2.2 From f312eff8164879e04923d41e9dd23e7850937d85 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 23 Mar 2011 16:42:14 -0700 Subject: bitops: remove ext2 non-atomic bitops from asm/bitops.h As the result of conversions, there are no users of ext2 non-atomic bit operations except for ext2 filesystem itself. Now we can put them into architecture independent code in ext2 filesystem, and remove from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/include/asm/bitops.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index f48f9644e4b5..2dd32bba47ee 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -857,17 +857,10 @@ static inline int find_next_bit_le(void *vaddr, unsigned long size, return offset + find_first_bit_le(p, size); } -#define ext2_set_bit __test_and_set_bit_le #define ext2_set_bit_atomic(lock, nr, addr) \ test_and_set_bit_le(nr, addr) -#define ext2_clear_bit __test_and_clear_bit_le #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit_le(nr, addr) -#define ext2_test_bit test_bit_le -#define ext2_find_first_zero_bit find_first_zero_bit_le -#define ext2_find_next_zero_bit find_next_zero_bit_le -#define ext2_find_first_bit find_first_bit_le -#define ext2_find_next_bit find_next_bit_le #include -- cgit v1.2.2 From 61f2e7b0f474225b4226772830ae4b29a3a21f8d Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 23 Mar 2011 16:42:16 -0700 Subject: bitops: remove minix bitops from asm/bitops.h minix bit operations are only used by minix filesystem and useless by other modules. Because byte order of inode and block bitmaps is different on each architecture like below: m68k: big-endian 16bit indexed bitmaps h8300, microblaze, s390, sparc, m68knommu: big-endian 32 or 64bit indexed bitmaps m32r, mips, sh, xtensa: big-endian 32 or 64bit indexed bitmaps for big-endian mode little-endian bitmaps for little-endian mode Others: little-endian bitmaps In order to move minix bit operations from asm/bitops.h to architecture independent code in minix filesystem, this provides two config options. CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED is only selected by m68k. CONFIG_MINIX_FS_NATIVE_ENDIAN is selected by the architectures which use native byte order bitmaps (h8300, microblaze, s390, sparc, m68knommu, m32r, mips, sh, xtensa). The architectures which always use little-endian bitmaps do not select these options. Finally, we can remove minix bit operations from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita Acked-by: Arnd Bergmann Acked-by: Greg Ungerer Cc: Geert Uytterhoeven Cc: Roman Zippel Cc: Andreas Schwab Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Yoshinori Sato Cc: Michal Simek Cc: "David S. Miller" Cc: Hirokazu Takata Acked-by: Ralf Baechle Acked-by: Paul Mundt Cc: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/include/asm/bitops.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 2dd32bba47ee..e1c8f3a49884 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -862,7 +862,6 @@ static inline int find_next_bit_le(void *vaddr, unsigned long size, #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit_le(nr, addr) -#include #endif /* __KERNEL__ */ -- cgit v1.2.2 From 8547727756a7322b99aa313ce50fe15d8f858872 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Wed, 23 Mar 2011 16:43:28 -0700 Subject: remove dma64_addr_t There is no user now. Signed-off-by: FUJITA Tomonori Cc: David Miller Cc: Ralf Baechle Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/include/asm/types.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/types.h b/arch/s390/include/asm/types.h index f7f6ae6bed8f..eeb52ccf499f 100644 --- a/arch/s390/include/asm/types.h +++ b/arch/s390/include/asm/types.h @@ -30,8 +30,6 @@ typedef __signed__ long saddr_t; #ifndef __ASSEMBLY__ -typedef u64 dma64_addr_t; - #ifndef __s390x__ typedef union { unsigned long long pair; -- cgit v1.2.2 From 25985edcedea6396277003854657b5f3cb31a628 Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Wed, 30 Mar 2011 22:57:33 -0300 Subject: Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi --- arch/s390/include/asm/atomic.h | 2 +- arch/s390/include/asm/cio.h | 2 +- arch/s390/kernel/reipl64.S | 2 +- arch/s390/kernel/setup.c | 2 +- arch/s390/kernel/time.c | 6 +++--- arch/s390/kernel/vtime.c | 2 +- arch/s390/kvm/kvm-s390.c | 2 +- arch/s390/kvm/priv.c | 2 +- arch/s390/mm/fault.c | 2 +- 9 files changed, 11 insertions(+), 11 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h index 5c5ba10384c2..d9db13810d15 100644 --- a/arch/s390/include/asm/atomic.h +++ b/arch/s390/include/asm/atomic.h @@ -9,7 +9,7 @@ * * Atomic operations that C can't guarantee us. * Useful for resource counting etc. - * s390 uses 'Compare And Swap' for atomicity in SMP enviroment. + * s390 uses 'Compare And Swap' for atomicity in SMP environment. * */ diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h index e34347d567a6..fc50a3342da3 100644 --- a/arch/s390/include/asm/cio.h +++ b/arch/s390/include/asm/cio.h @@ -183,7 +183,7 @@ struct esw3 { * The irb that is handed to the device driver when an interrupt occurs. For * solicited interrupts, the common I/O layer already performs checks whether * a field is valid; a field not being valid is always passed as %0. - * If a unit check occured, @ecw may contain sense data; this is retrieved + * If a unit check occurred, @ecw may contain sense data; this is retrieved * by the common I/O layer itself if the device doesn't support concurrent * sense (so that the device driver never needs to perform basic sene itself). * For unsolicited interrupts, the irb is passed as-is (expect for sense data, diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S index 5e73dee63baa..9eabbc90795d 100644 --- a/arch/s390/kernel/reipl64.S +++ b/arch/s390/kernel/reipl64.S @@ -78,7 +78,7 @@ do_reipl_asm: basr %r13,0 * in the ESA psw. * Bit 31 of the addresses has to be 0 for the * 31bit lpswe instruction a fact they appear to have - * ommited from the pop. + * omitted from the pop. */ .Lnewpsw: .quad 0x0000000080000000 .quad .Lpg1 diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index ed183c2c6168..f5434d1ecb31 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -708,7 +708,7 @@ static void __init setup_hwcaps(void) * and 1ULL<<0 as bit 63. Bits 0-31 contain the same information * as stored by stfl, bits 32-xxx contain additional facilities. * How many facility words are stored depends on the number of - * doublewords passed to the instruction. The additional facilites + * doublewords passed to the instruction. The additional facilities * are: * Bit 42: decimal floating point facility is installed * Bit 44: perform floating point operation facility is installed diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 9e7b039458da..87be655557aa 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -724,7 +724,7 @@ static void clock_sync_cpu(struct clock_sync_data *sync) } /* - * Sync the TOD clock using the port refered to by aibp. This port + * Sync the TOD clock using the port referred to by aibp. This port * has to be enabled and the other port has to be disabled. The * last eacr update has to be more than 1.6 seconds in the past. */ @@ -1012,7 +1012,7 @@ static void etr_work_fn(struct work_struct *work) eacr = etr_handle_update(&aib, eacr); /* - * Select ports to enable. The prefered synchronization mode is PPS. + * Select ports to enable. The preferred synchronization mode is PPS. * If a port can be enabled depends on a number of things: * 1) The port needs to be online and uptodate. A port is not * disabled just because it is not uptodate, but it is only @@ -1091,7 +1091,7 @@ static void etr_work_fn(struct work_struct *work) /* * Update eacr and try to synchronize the clock. If the update * of eacr caused a stepping port switch (or if we have to - * assume that a stepping port switch has occured) or the + * assume that a stepping port switch has occurred) or the * clock syncing failed, reset the sync check control bit * and set up a timer to try again after 0.5 seconds */ diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index 1ccdf4d8aa85..5e8ead4b4aba 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -44,7 +44,7 @@ static inline void set_vtimer(__u64 expires) __u64 timer; asm volatile (" STPT %0\n" /* Store current cpu timer value */ - " SPT %1" /* Set new value immediatly afterwards */ + " SPT %1" /* Set new value immediately afterwards */ : "=m" (timer) : "m" (expires) ); S390_lowcore.system_timer += S390_lowcore.last_update_timer - timer; S390_lowcore.last_update_timer = expires; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index bade533ba288..30ca85cce314 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -721,7 +721,7 @@ static int __init kvm_s390_init(void) /* * guests can ask for up to 255+1 double words, we need a full page - * to hold the maximum amount of facilites. On the other hand, we + * to hold the maximum amount of facilities. On the other hand, we * only set facilities that are known to work in KVM. */ facilities = (unsigned long long *) get_zeroed_page(GFP_KERNEL|GFP_DMA); diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 9194a4b52b22..73c47bd95db3 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -311,7 +311,7 @@ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu) /* * a lot of B2 instructions are priviledged. We first check for - * the priviledges ones, that we can handle in the kernel. If the + * the privileged ones, that we can handle in the kernel. If the * kernel can handle this instruction, we check for the problem * state bit and (a) handle the instruction or (b) send a code 2 * program check. diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 2c57806c0858..9217e332b118 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -392,7 +392,7 @@ void __kprobes do_protection_exception(struct pt_regs *regs, long pgm_int_code, { int fault; - /* Protection exception is supressing, decrement psw address. */ + /* Protection exception is suppressing, decrement psw address. */ regs->psw.addr -= (pgm_int_code >> 16); /* * Check for low-address protection. This needs to be treated -- cgit v1.2.2 From 65a94b1417badaee2ed923fd07e23b651b25c729 Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Mon, 4 Apr 2011 09:43:29 +0200 Subject: [S390] oprofile s390: prevent stack corruption Prevent stack corruption by memcpy which copies more bytes then available at the destination. While at it use the new test_facility to test for the facility bit. Signed-off-by: Jan Glauber Signed-off-by: Martin Schwidefsky --- arch/s390/oprofile/hwsampler.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c index 3d48f4db246d..4952872d6f0a 100644 --- a/arch/s390/oprofile/hwsampler.c +++ b/arch/s390/oprofile/hwsampler.c @@ -517,12 +517,8 @@ stop_exit: static int check_hardware_prerequisites(void) { - unsigned long long facility_bits[2]; - - memcpy(facility_bits, S390_lowcore.stfle_fac_list, 32); - if (!(facility_bits[1] & (1ULL << 59))) + if (!test_facility(68)) return -EOPNOTSUPP; - return 0; } /* -- cgit v1.2.2 From 034e9e966cd86e5d8062cf0b3daba4bde187986c Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Mon, 4 Apr 2011 09:43:30 +0200 Subject: [S390] Fix parameter passing for smp_switch_to_cpu() After the execution has been switched to the destination CPU, the target function is called with the wrong parameter. According to the C calling convention on s390, the first parameter should be loaded into register 2. Currently in smp_restart_cpu() it is stored in register 3. To fix this, we load the parameter into the correct register 2. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/switch_cpu.S | 4 +++- arch/s390/kernel/switch_cpu64.S | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/switch_cpu.S b/arch/s390/kernel/switch_cpu.S index 469f11b574fa..20530dd2eab1 100644 --- a/arch/s390/kernel/switch_cpu.S +++ b/arch/s390/kernel/switch_cpu.S @@ -46,7 +46,9 @@ smp_restart_cpu: ltr %r4,%r4 /* New stack ? */ jz 1f lr %r15,%r4 -1: basr %r14,%r2 +1: lr %r14,%r2 /* r14: Function to call */ + lr %r2,%r3 /* r2 : Parameter for function*/ + basr %r14,%r14 /* Call function */ .gprregs_addr: .long .gprregs diff --git a/arch/s390/kernel/switch_cpu64.S b/arch/s390/kernel/switch_cpu64.S index d94aacc898cb..5be3f43898f9 100644 --- a/arch/s390/kernel/switch_cpu64.S +++ b/arch/s390/kernel/switch_cpu64.S @@ -42,7 +42,9 @@ smp_restart_cpu: ltgr %r4,%r4 /* New stack ? */ jz 1f lgr %r15,%r4 -1: basr %r14,%r2 +1: lgr %r14,%r2 /* r14: Function to call */ + lgr %r2,%r3 /* r2 : Parameter for function*/ + basr %r14,%r14 /* Call function */ .section .data,"aw",@progbits .gprregs: -- cgit v1.2.2 From 8838101183bba239f100b0cfe31d9ebbfc2f1bd4 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Mon, 4 Apr 2011 09:43:33 +0200 Subject: [S390] compile fix for latest binutils The latest binutils won't accept the stfl instruction with march=g5 which is the correct behaviour. Unfortunately head.S is assembled with -march=g5 even if the target cpu is z900 or later. To get 31-bit kernels compiled again the easiest fix is to use the .insn notation for the stfl instruction in head.S. Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index 7061398341d5..fb317bf2c378 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -460,7 +460,7 @@ startup: #ifndef CONFIG_MARCH_G5 # check capabilities against MARCH_{G5,Z900,Z990,Z9_109,Z10} xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST - stfl __LC_STFL_FAC_LIST # store facility list + .insn s,0xb2b10000,__LC_STFL_FAC_LIST # store facility list tm __LC_STFL_FAC_LIST,0x01 # stfle available ? jz 0f la %r0,0 -- cgit v1.2.2