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-rw-r--r--arch/Kconfig4
-rw-r--r--arch/alpha/include/asm/cacheflush.h2
-rw-r--r--arch/alpha/include/asm/unistd.h6
-rw-r--r--arch/alpha/kernel/entry.S81
-rw-r--r--arch/alpha/kernel/err_ev6.c12
-rw-r--r--arch/alpha/kernel/err_marvel.c33
-rw-r--r--arch/alpha/kernel/err_titan.c35
-rw-r--r--arch/alpha/kernel/osf_sys.c9
-rw-r--r--arch/alpha/kernel/pci-sysfs.c2
-rw-r--r--arch/alpha/kernel/process.c2
-rw-r--r--arch/alpha/kernel/signal.c97
-rw-r--r--arch/alpha/kernel/srm_env.c2
-rw-r--r--arch/alpha/kernel/systbls.S5
-rw-r--r--arch/alpha/kernel/time.c10
-rw-r--r--arch/alpha/kernel/traps.c3
-rw-r--r--arch/arm/Kconfig41
-rw-r--r--arch/arm/Kconfig.debug14
-rw-r--r--arch/arm/Makefile7
-rw-r--r--arch/arm/boot/compressed/Makefile2
-rw-r--r--arch/arm/common/it8152.c8
-rw-r--r--arch/arm/include/asm/elf.h4
-rw-r--r--arch/arm/include/asm/io.h1
-rw-r--r--arch/arm/include/asm/mmu_context.h29
-rw-r--r--arch/arm/include/asm/pgtable.h4
-rw-r--r--arch/arm/include/asm/seccomp.h11
-rw-r--r--arch/arm/include/asm/thread_info.h2
-rw-r--r--arch/arm/kernel/entry-common.S17
-rw-r--r--arch/arm/kernel/process.c21
-rw-r--r--arch/arm/mach-aaec2000/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-at91/at91sam9g45_devices.c4
-rw-r--r--arch/arm/mach-bcmring/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-clps711x/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-davinci/dm355.c3
-rw-r--r--arch/arm/mach-davinci/dm365.c3
-rw-r--r--arch/arm/mach-davinci/dm644x.c3
-rw-r--r--arch/arm/mach-davinci/dm646x.c3
-rw-r--r--arch/arm/mach-dove/include/mach/io.h6
-rw-r--r--arch/arm/mach-ebsa110/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-footbridge/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-h720x/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-integrator/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-ixp4xx/common-pci.c8
-rw-r--r--arch/arm/mach-ixp4xx/include/mach/hardware.h2
-rw-r--r--arch/arm/mach-kirkwood/include/mach/kirkwood.h2
-rw-r--r--arch/arm/mach-kirkwood/pcie.c4
-rw-r--r--arch/arm/mach-mmp/include/mach/system.h7
-rw-r--r--arch/arm/mach-msm/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-mx5/cpu.c19
-rw-r--r--arch/arm/mach-netx/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-omap1/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-omap2/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-pnx4008/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-pxa/cpufreq-pxa2xx.c3
-rw-r--r--arch/arm/mach-pxa/include/mach/hardware.h14
-rw-r--r--arch/arm/mach-pxa/include/mach/io.h2
-rw-r--r--arch/arm/mach-pxa/palm27x.c6
-rw-r--r--arch/arm/mach-pxa/vpac270.c1
-rw-r--r--arch/arm/mach-rpc/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-s3c64xx/dev-spi.c3
-rw-r--r--arch/arm/mach-s3c64xx/mach-real6410.c104
-rw-r--r--arch/arm/mach-s5pv210/clock.c20
-rw-r--r--arch/arm/mach-s5pv210/cpu.c2
-rw-r--r--arch/arm/mach-shark/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-u300/include/mach/gpio.h3
-rw-r--r--arch/arm/mach-versatile/include/mach/vmalloc.h2
-rw-r--r--arch/arm/mach-vexpress/ct-ca9x4.c8
-rw-r--r--arch/arm/mm/alignment.c19
-rw-r--r--arch/arm/mm/mmap.c22
-rw-r--r--arch/arm/mm/mmu.c31
-rw-r--r--arch/arm/mm/proc-v7.S62
-rw-r--r--arch/arm/plat-nomadik/timer.c33
-rw-r--r--arch/arm/plat-omap/sram.c25
-rw-r--r--arch/arm/plat-s5p/dev-fimc0.c9
-rw-r--r--arch/arm/plat-s5p/dev-fimc1.c9
-rw-r--r--arch/arm/plat-s5p/dev-fimc2.c9
-rw-r--r--arch/arm/plat-samsung/gpio-config.c7
-rw-r--r--arch/arm/plat-samsung/include/plat/gpio-cfg.h10
-rw-r--r--arch/frv/kernel/signal.c51
-rw-r--r--arch/m32r/include/asm/signal.h1
-rw-r--r--arch/m32r/include/asm/unistd.h1
-rw-r--r--arch/m32r/kernel/entry.S5
-rw-r--r--arch/m32r/kernel/ptrace.c7
-rw-r--r--arch/m32r/kernel/signal.c105
-rw-r--r--arch/mn10300/Kconfig1
-rw-r--r--arch/mn10300/Kconfig.debug2
-rw-r--r--arch/mn10300/include/asm/bitops.h4
-rw-r--r--arch/mn10300/include/asm/signal.h2
-rw-r--r--arch/mn10300/kernel/signal.c35
-rw-r--r--arch/mn10300/mm/Makefile14
-rw-r--r--arch/mn10300/mm/cache-disabled.c21
-rw-r--r--arch/powerpc/kernel/signal.c2
-rw-r--r--arch/powerpc/kernel/signal_32.c3
-rw-r--r--arch/powerpc/kernel/signal_64.c2
-rw-r--r--arch/sparc/kernel/perf_event.c14
-rw-r--r--arch/sparc/kernel/signal32.c161
-rw-r--r--arch/sparc/kernel/signal_32.c55
-rw-r--r--arch/sparc/kernel/signal_64.c45
-rw-r--r--arch/tile/kernel/intvec_32.S7
-rw-r--r--arch/um/kernel/exec.c6
-rw-r--r--arch/um/kernel/internal.h2
-rw-r--r--arch/um/kernel/syscall.c4
-rw-r--r--arch/x86/boot/early_serial_console.c14
-rw-r--r--arch/x86/include/asm/amd_iommu_proto.h6
-rw-r--r--arch/x86/include/asm/amd_iommu_types.h12
-rw-r--r--arch/x86/include/asm/bitops.h2
-rw-r--r--arch/x86/include/asm/cpufeature.h1
-rw-r--r--arch/x86/include/asm/hw_breakpoint.h2
-rw-r--r--arch/x86/kernel/Makefile2
-rw-r--r--arch/x86/kernel/amd_iommu.c4
-rw-r--r--arch/x86/kernel/amd_iommu_init.c67
-rw-r--r--arch/x86/kernel/cpu/perf_event.c12
-rw-r--r--arch/x86/kernel/cpu/scattered.c1
-rw-r--r--arch/x86/kernel/hw_breakpoint.c40
-rw-r--r--arch/x86/lguest/boot.c13
-rw-r--r--arch/x86/oprofile/nmi_int.c4
115 files changed, 1046 insertions, 644 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 4877a8c8ee16..fe48fc7a3eba 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -32,8 +32,9 @@ config HAVE_OPROFILE
config KPROBES
bool "Kprobes"
- depends on KALLSYMS && MODULES
+ depends on MODULES
depends on HAVE_KPROBES
+ select KALLSYMS
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
@@ -45,7 +46,6 @@ config OPTPROBES
def_bool y
depends on KPROBES && HAVE_OPTPROBES
depends on !PREEMPT
- select KALLSYMS_ALL
config HAVE_EFFICIENT_UNALIGNED_ACCESS
bool
diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.h
index 01d71e1c8a9e..012f1243b1c1 100644
--- a/arch/alpha/include/asm/cacheflush.h
+++ b/arch/alpha/include/asm/cacheflush.h
@@ -43,6 +43,8 @@ extern void smp_imb(void);
/* ??? Ought to use this in arch/alpha/kernel/signal.c too. */
#ifndef CONFIG_SMP
+#include <linux/sched.h>
+
extern void __load_new_mm_context(struct mm_struct *);
static inline void
flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index 804e5311c841..058937bf5a77 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -449,10 +449,13 @@
#define __NR_pwritev 491
#define __NR_rt_tgsigqueueinfo 492
#define __NR_perf_event_open 493
+#define __NR_fanotify_init 494
+#define __NR_fanotify_mark 495
+#define __NR_prlimit64 496
#ifdef __KERNEL__
-#define NR_SYSCALLS 494
+#define NR_SYSCALLS 497
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
@@ -463,6 +466,7 @@
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
/* "Conditional" syscalls. What we want is
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index b45d913a51c3..6d159cee5f2f 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -73,8 +73,6 @@
ldq $20, HAE_REG($19); \
stq $21, HAE_CACHE($19); \
stq $21, 0($20); \
- ldq $0, 0($sp); \
- ldq $1, 8($sp); \
99:; \
ldq $19, 72($sp); \
ldq $20, 80($sp); \
@@ -316,19 +314,24 @@ ret_from_sys_call:
cmovne $26, 0, $19 /* $19 = 0 => non-restartable */
ldq $0, SP_OFF($sp)
and $0, 8, $0
- beq $0, restore_all
-ret_from_reschedule:
+ beq $0, ret_to_kernel
+ret_to_user:
/* Make sure need_resched and sigpending don't change between
sampling and the rti. */
lda $16, 7
call_pal PAL_swpipl
ldl $5, TI_FLAGS($8)
and $5, _TIF_WORK_MASK, $2
- bne $5, work_pending
+ bne $2, work_pending
restore_all:
RESTORE_ALL
call_pal PAL_rti
+ret_to_kernel:
+ lda $16, 7
+ call_pal PAL_swpipl
+ br restore_all
+
.align 3
$syscall_error:
/*
@@ -363,7 +366,7 @@ $ret_success:
* $8: current.
* $19: The old syscall number, or zero if this is not a return
* from a syscall that errored and is possibly restartable.
- * $20: Error indication.
+ * $20: The old a3 value
*/
.align 4
@@ -392,12 +395,18 @@ $work_resched:
$work_notifysig:
mov $sp, $16
- br $1, do_switch_stack
+ bsr $1, do_switch_stack
mov $sp, $17
mov $5, $18
+ mov $19, $9 /* save old syscall number */
+ mov $20, $10 /* save old a3 */
+ and $5, _TIF_SIGPENDING, $2
+ cmovne $2, 0, $9 /* we don't want double syscall restarts */
jsr $26, do_notify_resume
+ mov $9, $19
+ mov $10, $20
bsr $1, undo_switch_stack
- br restore_all
+ br ret_to_user
.end work_pending
/*
@@ -430,6 +439,7 @@ strace:
beq $1, 1f
ldq $27, 0($2)
1: jsr $26, ($27), sys_gettimeofday
+ret_from_straced:
ldgp $gp, 0($26)
/* check return.. */
@@ -650,7 +660,7 @@ kernel_thread:
/* We don't actually care for a3 success widgetry in the kernel.
Not for positive errno values. */
stq $0, 0($sp) /* $0 */
- br restore_all
+ br ret_to_kernel
.end kernel_thread
/*
@@ -757,11 +767,15 @@ sys_vfork:
.ent sys_sigreturn
sys_sigreturn:
.prologue 0
+ lda $9, ret_from_straced
+ cmpult $26, $9, $9
mov $sp, $17
lda $18, -SWITCH_STACK_SIZE($sp)
lda $sp, -SWITCH_STACK_SIZE($sp)
jsr $26, do_sigreturn
- br $1, undo_switch_stack
+ bne $9, 1f
+ jsr $26, syscall_trace
+1: br $1, undo_switch_stack
br ret_from_sys_call
.end sys_sigreturn
@@ -770,47 +784,19 @@ sys_sigreturn:
.ent sys_rt_sigreturn
sys_rt_sigreturn:
.prologue 0
+ lda $9, ret_from_straced
+ cmpult $26, $9, $9
mov $sp, $17
lda $18, -SWITCH_STACK_SIZE($sp)
lda $sp, -SWITCH_STACK_SIZE($sp)
jsr $26, do_rt_sigreturn
- br $1, undo_switch_stack
+ bne $9, 1f
+ jsr $26, syscall_trace
+1: br $1, undo_switch_stack
br ret_from_sys_call
.end sys_rt_sigreturn
.align 4
- .globl sys_sigsuspend
- .ent sys_sigsuspend
-sys_sigsuspend:
- .prologue 0
- mov $sp, $17
- br $1, do_switch_stack
- mov $sp, $18
- subq $sp, 16, $sp
- stq $26, 0($sp)
- jsr $26, do_sigsuspend
- ldq $26, 0($sp)
- lda $sp, SWITCH_STACK_SIZE+16($sp)
- ret
-.end sys_sigsuspend
-
- .align 4
- .globl sys_rt_sigsuspend
- .ent sys_rt_sigsuspend
-sys_rt_sigsuspend:
- .prologue 0
- mov $sp, $18
- br $1, do_switch_stack
- mov $sp, $19
- subq $sp, 16, $sp
- stq $26, 0($sp)
- jsr $26, do_rt_sigsuspend
- ldq $26, 0($sp)
- lda $sp, SWITCH_STACK_SIZE+16($sp)
- ret
-.end sys_rt_sigsuspend
-
- .align 4
.globl sys_sethae
.ent sys_sethae
sys_sethae:
@@ -929,15 +915,6 @@ sys_execve:
.end sys_execve
.align 4
- .globl osf_sigprocmask
- .ent osf_sigprocmask
-osf_sigprocmask:
- .prologue 0
- mov $sp, $18
- jmp $31, sys_osf_sigprocmask
-.end osf_sigprocmask
-
- .align 4
.globl alpha_ni_syscall
.ent alpha_ni_syscall
alpha_ni_syscall:
diff --git a/arch/alpha/kernel/err_ev6.c b/arch/alpha/kernel/err_ev6.c
index 8ca6345bf131..253cf1a87481 100644
--- a/arch/alpha/kernel/err_ev6.c
+++ b/arch/alpha/kernel/err_ev6.c
@@ -90,11 +90,13 @@ static int
ev6_parse_cbox(u64 c_addr, u64 c1_syn, u64 c2_syn,
u64 c_stat, u64 c_sts, int print)
{
- char *sourcename[] = { "UNKNOWN", "UNKNOWN", "UNKNOWN",
- "MEMORY", "BCACHE", "DCACHE",
- "BCACHE PROBE", "BCACHE PROBE" };
- char *streamname[] = { "D", "I" };
- char *bitsname[] = { "SINGLE", "DOUBLE" };
+ static const char * const sourcename[] = {
+ "UNKNOWN", "UNKNOWN", "UNKNOWN",
+ "MEMORY", "BCACHE", "DCACHE",
+ "BCACHE PROBE", "BCACHE PROBE"
+ };
+ static const char * const streamname[] = { "D", "I" };
+ static const char * const bitsname[] = { "SINGLE", "DOUBLE" };
int status = MCHK_DISPOSITION_REPORT;
int source = -1, stream = -1, bits = -1;
diff --git a/arch/alpha/kernel/err_marvel.c b/arch/alpha/kernel/err_marvel.c
index 5c905aaaeccd..648ae88aeb8a 100644
--- a/arch/alpha/kernel/err_marvel.c
+++ b/arch/alpha/kernel/err_marvel.c
@@ -589,22 +589,23 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt)
static void
marvel_print_pox_trans_sum(u64 trans_sum)
{
- char *pcix_cmd[] = { "Interrupt Acknowledge",
- "Special Cycle",
- "I/O Read",
- "I/O Write",
- "Reserved",
- "Reserved / Device ID Message",
- "Memory Read",
- "Memory Write",
- "Reserved / Alias to Memory Read Block",
- "Reserved / Alias to Memory Write Block",
- "Configuration Read",
- "Configuration Write",
- "Memory Read Multiple / Split Completion",
- "Dual Address Cycle",
- "Memory Read Line / Memory Read Block",
- "Memory Write and Invalidate / Memory Write Block"
+ static const char * const pcix_cmd[] = {
+ "Interrupt Acknowledge",
+ "Special Cycle",
+ "I/O Read",
+ "I/O Write",
+ "Reserved",
+ "Reserved / Device ID Message",
+ "Memory Read",
+ "Memory Write",
+ "Reserved / Alias to Memory Read Block",
+ "Reserved / Alias to Memory Write Block",
+ "Configuration Read",
+ "Configuration Write",
+ "Memory Read Multiple / Split Completion",
+ "Dual Address Cycle",
+ "Memory Read Line / Memory Read Block",
+ "Memory Write and Invalidate / Memory Write Block"
};
#define IO7__POX_TRANSUM__PCI_ADDR__S (0)
diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c
index f7ed97ce0dfd..c3b3781a03de 100644
--- a/arch/alpha/kernel/err_titan.c
+++ b/arch/alpha/kernel/err_titan.c
@@ -75,8 +75,12 @@ titan_parse_p_serror(int which, u64 serror, int print)
int status = MCHK_DISPOSITION_REPORT;
#ifdef CONFIG_VERBOSE_MCHECK
- char *serror_src[] = {"GPCI", "APCI", "AGP HP", "AGP LP"};
- char *serror_cmd[] = {"DMA Read", "DMA RMW", "SGTE Read", "Reserved"};
+ static const char * const serror_src[] = {
+ "GPCI", "APCI", "AGP HP", "AGP LP"
+ };
+ static const char * const serror_cmd[] = {
+ "DMA Read", "DMA RMW", "SGTE Read", "Reserved"
+ };
#endif /* CONFIG_VERBOSE_MCHECK */
#define TITAN__PCHIP_SERROR__LOST_UECC (1UL << 0)
@@ -140,14 +144,15 @@ titan_parse_p_perror(int which, int port, u64 perror, int print)
int status = MCHK_DISPOSITION_REPORT;
#ifdef CONFIG_VERBOSE_MCHECK
- char *perror_cmd[] = { "Interrupt Acknowledge", "Special Cycle",
- "I/O Read", "I/O Write",
- "Reserved", "Reserved",
- "Memory Read", "Memory Write",
- "Reserved", "Reserved",
- "Configuration Read", "Configuration Write",
- "Memory Read Multiple", "Dual Address Cycle",
- "Memory Read Line","Memory Write and Invalidate"
+ static const char * const perror_cmd[] = {
+ "Interrupt Acknowledge", "Special Cycle",
+ "I/O Read", "I/O Write",
+ "Reserved", "Reserved",
+ "Memory Read", "Memory Write",
+ "Reserved", "Reserved",
+ "Configuration Read", "Configuration Write",
+ "Memory Read Multiple", "Dual Address Cycle",
+ "Memory Read Line", "Memory Write and Invalidate"
};
#endif /* CONFIG_VERBOSE_MCHECK */
@@ -273,11 +278,11 @@ titan_parse_p_agperror(int which, u64 agperror, int print)
int cmd, len;
unsigned long addr;
- char *agperror_cmd[] = { "Read (low-priority)", "Read (high-priority)",
- "Write (low-priority)",
- "Write (high-priority)",
- "Reserved", "Reserved",
- "Flush", "Fence"
+ static const char * const agperror_cmd[] = {
+ "Read (low-priority)", "Read (high-priority)",
+ "Write (low-priority)", "Write (high-priority)",
+ "Reserved", "Reserved",
+ "Flush", "Fence"
};
#endif /* CONFIG_VERBOSE_MCHECK */
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 5d1e6d6ce684..547e8b84b2f7 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -15,7 +15,6 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
-#include <linux/smp_lock.h>
#include <linux/stddef.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
@@ -69,7 +68,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
{
struct mm_struct *mm;
- lock_kernel();
mm = current->mm;
mm->end_code = bss_start + bss_len;
mm->start_brk = bss_start + bss_len;
@@ -78,7 +76,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
printk("set_program_attributes(%lx %lx %lx %lx)\n",
text_start, text_len, bss_start, bss_len);
#endif
- unlock_kernel();
return 0;
}
@@ -517,7 +514,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
long error;
int __user *min_buf_size_ptr;
- lock_kernel();
switch (code) {
case PL_SET:
if (get_user(error, &args->set.nbytes))
@@ -547,7 +543,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
error = -EOPNOTSUPP;
break;
};
- unlock_kernel();
return error;
}
@@ -594,7 +589,7 @@ SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
{
- char *sysinfo_table[] = {
+ const char *sysinfo_table[] = {
utsname()->sysname,
utsname()->nodename,
utsname()->release,
@@ -606,7 +601,7 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
"dummy", /* secure RPC domain */
};
unsigned long offset;
- char *res;
+ const char *res;
long len, err = -EINVAL;
offset = command-1;
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index 738fc824e2ea..b899e95f79fd 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -66,7 +66,7 @@ static int pci_mmap_resource(struct kobject *kobj,
{
struct pci_dev *pdev = to_pci_dev(container_of(kobj,
struct device, kobj));
- struct resource *res = (struct resource *)attr->private;
+ struct resource *res = attr->private;
enum pci_mmap_state mmap_type;
struct pci_bus_region bar;
int i;
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 842dba308eab..3ec35066f1dc 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -356,7 +356,7 @@ dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
dest[27] = pt->r27;
dest[28] = pt->r28;
dest[29] = pt->gp;
- dest[30] = rdusp();
+ dest[30] = ti == current_thread_info() ? rdusp() : ti->pcb.usp;
dest[31] = pt->pc;
/* Once upon a time this was the PS value. Which is stupid
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 0932dbb1ef8e..d290845aef59 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -41,46 +41,20 @@ static void do_signal(struct pt_regs *, struct switch_stack *,
/*
* The OSF/1 sigprocmask calling sequence is different from the
* C sigprocmask() sequence..
- *
- * how:
- * 1 - SIG_BLOCK
- * 2 - SIG_UNBLOCK
- * 3 - SIG_SETMASK
- *
- * We change the range to -1 .. 1 in order to let gcc easily
- * use the conditional move instructions.
- *
- * Note that we don't need to acquire the kernel lock for SMP
- * operation, as all of this is local to this thread.
*/
-SYSCALL_DEFINE3(osf_sigprocmask, int, how, unsigned long, newmask,
- struct pt_regs *, regs)
+SYSCALL_DEFINE2(osf_sigprocmask, int, how, unsigned long, newmask)
{
- unsigned long oldmask = -EINVAL;
-
- if ((unsigned long)how-1 <= 2) {
- long sign = how-2; /* -1 .. 1 */
- unsigned long block, unblock;
-
- newmask &= _BLOCKABLE;
- spin_lock_irq(&current->sighand->siglock);
- oldmask = current->blocked.sig[0];
-
- unblock = oldmask & ~newmask;
- block = oldmask | newmask;
- if (!sign)
- block = unblock;
- if (sign <= 0)
- newmask = block;
- if (_NSIG_WORDS > 1 && sign > 0)
- sigemptyset(&current->blocked);
- current->blocked.sig[0] = newmask;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- regs->r0 = 0; /* special no error return */
+ sigset_t oldmask;
+ sigset_t mask;
+ unsigned long res;
+
+ siginitset(&mask, newmask & ~_BLOCKABLE);
+ res = sigprocmask(how, &mask, &oldmask);
+ if (!res) {
+ force_successful_syscall_return();
+ res = oldmask.sig[0];
}
- return oldmask;
+ return res;
}
SYSCALL_DEFINE3(osf_sigaction, int, sig,
@@ -94,9 +68,9 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig,
old_sigset_t mask;
if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_flags, &act->sa_flags))
+ __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+ __get_user(mask, &act->sa_mask))
return -EFAULT;
- __get_user(mask, &act->sa_mask);
siginitset(&new_ka.sa.sa_mask, mask);
new_ka.ka_restorer = NULL;
}
@@ -106,9 +80,9 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig,
if (!ret && oact) {
if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags))
+ __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+ __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
return -EFAULT;
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
}
return ret;
@@ -144,8 +118,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
/*
* Atomically swap in the new signal mask, and wait for a signal.
*/
-asmlinkage int
-do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
+SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
{
mask &= _BLOCKABLE;
spin_lock_irq(&current->sighand->siglock);
@@ -154,41 +127,6 @@ do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
- /* Indicate EINTR on return from any possible signal handler,
- which will not come back through here, but via sigreturn. */
- regs->r0 = EINTR;
- regs->r19 = 1;
-
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- set_thread_flag(TIF_RESTORE_SIGMASK);
- return -ERESTARTNOHAND;
-}
-
-asmlinkage int
-do_rt_sigsuspend(sigset_t __user *uset, size_t sigsetsize,
- struct pt_regs *regs, struct switch_stack *sw)
-{
- sigset_t set;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
- if (copy_from_user(&set, uset, sizeof(set)))
- return -EFAULT;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->saved_sigmask = current->blocked;
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- /* Indicate EINTR on return from any possible signal handler,
- which will not come back through here, but via sigreturn. */
- regs->r0 = EINTR;
- regs->r19 = 1;
-
current->state = TASK_INTERRUPTIBLE;
schedule();
set_thread_flag(TIF_RESTORE_SIGMASK);
@@ -239,6 +177,8 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
unsigned long usp;
long i, err = __get_user(regs->pc, &sc->sc_pc);
+ current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
sw->r26 = (unsigned long) ret_from_sys_call;
err |= __get_user(regs->r0, sc->sc_regs+0);
@@ -591,7 +531,6 @@ syscall_restart(unsigned long r0, unsigned long r19,
regs->pc -= 4;
break;
case ERESTART_RESTARTBLOCK:
- current_thread_info()->restart_block.fn = do_no_restart_syscall;
regs->r0 = EINTR;
break;
}
diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c
index 4afc1a1e2e5a..f0df3fbd8402 100644
--- a/arch/alpha/kernel/srm_env.c
+++ b/arch/alpha/kernel/srm_env.c
@@ -87,7 +87,7 @@ static int srm_env_proc_show(struct seq_file *m, void *v)
srm_env_t *entry;
char *page;
- entry = (srm_env_t *)m->private;
+ entry = m->private;
page = (char *)__get_free_page(GFP_USER);
if (!page)
return -ENOMEM;
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 09acb786e72b..a6a1de9db16f 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -58,7 +58,7 @@ sys_call_table:
.quad sys_open /* 45 */
.quad alpha_ni_syscall
.quad sys_getxgid
- .quad osf_sigprocmask
+ .quad sys_osf_sigprocmask
.quad alpha_ni_syscall
.quad alpha_ni_syscall /* 50 */
.quad sys_acct
@@ -512,6 +512,9 @@ sys_call_table:
.quad sys_pwritev
.quad sys_rt_tgsigqueueinfo
.quad sys_perf_event_open
+ .quad sys_fanotify_init
+ .quad sys_fanotify_mark /* 495 */
+ .quad sys_prlimit64
.size sys_call_table, . - sys_call_table
.type sys_call_table, @object
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index eacceb26d9c8..396af1799ea4 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -191,16 +191,16 @@ irqreturn_t timer_interrupt(int irq, void *dev)
write_sequnlock(&xtime_lock);
-#ifndef CONFIG_SMP
- while (nticks--)
- update_process_times(user_mode(get_irq_regs()));
-#endif
-
if (test_perf_event_pending()) {
clear_perf_event_pending();
perf_event_do_pending();
}
+#ifndef CONFIG_SMP
+ while (nticks--)
+ update_process_times(user_mode(get_irq_regs()));
+#endif
+
return IRQ_HANDLED;
}
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index b14f015008ad..0414e021a91c 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -13,7 +13,6 @@
#include <linux/sched.h>
#include <linux/tty.h>
#include <linux/delay.h>
-#include <linux/smp_lock.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kallsyms.h>
@@ -623,7 +622,6 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
return;
}
- lock_kernel();
printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n",
pc, va, opcode, reg);
do_exit(SIGSEGV);
@@ -646,7 +644,6 @@ got_exception:
* Yikes! No one to forward the exception to.
* Since the registers are in a weird format, dump them ourselves.
*/
- lock_kernel();
printk("%s(%d): unhandled unaligned exception\n",
current->comm, task_pid_nr(current));
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 8d395352f1c9..ca5aa5aa39e0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -271,7 +271,6 @@ config ARCH_AT91
bool "Atmel AT91"
select ARCH_REQUIRE_GPIOLIB
select HAVE_CLK
- select ARCH_USES_GETTIMEOFFSET
help
This enables support for systems based on the Atmel AT91RM9200,
AT91SAM9 and AT91CAP9 processors.
@@ -1062,6 +1061,32 @@ config ARM_ERRATA_460075
ACTLR register. Note that setting specific bits in the ACTLR register
may not be available in non-secure mode.
+config ARM_ERRATA_742230
+ bool "ARM errata: DMB operation may be faulty"
+ depends on CPU_V7 && SMP
+ help
+ This option enables the workaround for the 742230 Cortex-A9
+ (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
+ between two write operations may not ensure the correct visibility
+ ordering of the two writes. This workaround sets a specific bit in
+ the diagnostic register of the Cortex-A9 which causes the DMB
+ instruction to behave as a DSB, ensuring the correct behaviour of
+ the two writes.
+
+config ARM_ERRATA_742231
+ bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
+ depends on CPU_V7 && SMP
+ help
+ This option enables the workaround for the 742231 Cortex-A9
+ (r2p0..r2p2) erratum. Under certain conditions, specific to the
+ Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
+ accessing some data located in the same cache line, may get corrupted
+ data due to bad handling of the address hazard when the line gets
+ replaced from one of the CPUs at the same time as another CPU is
+ accessing it. This workaround sets specific bits in the diagnostic
+ register of the Cortex-A9 which reduces the linefill issuing
+ capabilities of the processor.
+
config PL310_ERRATA_588369
bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
depends on CACHE_L2X0 && ARCH_OMAP4
@@ -1449,6 +1474,20 @@ config UACCESS_WITH_MEMCPY
However, if the CPU data cache is using a write-allocate mode,
this option is unlikely to provide any performance gain.
+config SECCOMP
+ bool
+ prompt "Enable seccomp to safely compute untrusted bytecode"
+ ---help---
+ This kernel feature is useful for number crunching applications
+ that may need to compute untrusted bytecode during their
+ execution. By using pipes or other transports made available to
+ the process as file descriptors supporting the read/write
+ syscalls, it's possible to isolate those applications in
+ their own address space using seccomp. Once seccomp is
+ enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
+ and the task is only allowed to execute a few safe syscalls
+ defined by each seccomp mode.
+
config CC_STACKPROTECTOR
bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
help
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 91344af75f39..c29fb382aeee 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -2,6 +2,20 @@ menu "Kernel hacking"
source "lib/Kconfig.debug"
+config STRICT_DEVMEM
+ bool "Filter access to /dev/mem"
+ depends on MMU
+ ---help---
+ If this option is disabled, you allow userspace (root) access to all
+ of memory, including kernel and userspace memory. Accidental
+ access to this is obviously disastrous, but specific access can
+ be used by people debugging the kernel.
+
+ If this option is switched on, the /dev/mem file only allows
+ userspace access to memory mapped peripherals.
+
+ If in doubt, say Y.
+
# RMK wants arm kernels compiled with frame pointers or stack unwinding.
# If you know what you are doing and are willing to live without stack
# traces, you can get a slightly smaller kernel by setting this option to
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 4e0b6c8d7ed3..502255905c4e 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -247,13 +247,14 @@ ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
FASTFPE_OBJ :=$(FASTFPE)/
endif
-# If we have a machine-specific directory, then include it in the build.
-core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
-core-y += $(machdirs) $(platdirs)
core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
core-$(CONFIG_VFP) += arch/arm/vfp/
+# If we have a machine-specific directory, then include it in the build.
+core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
+core-y += $(machdirs) $(platdirs)
+
drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
libs-y := arch/arm/lib/ $(libs-y)
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index b23f6bc46cfa..65a7c1c588a9 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -116,5 +116,5 @@ CFLAGS_font.o := -Dstatic=
$(obj)/font.c: $(FONTC)
$(call cmd,shipped)
-$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
+$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
@sed "$(SEDFLAGS)" < $< > $@
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index 7974baacafce..1bec96e85196 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -271,6 +271,14 @@ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
((dma_addr + size - PHYS_OFFSET) >= SZ_64M);
}
+int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+ if (mask >= PHYS_OFFSET + SZ_64M - 1)
+ return 0;
+
+ return -EIO;
+}
+
int __init it8152_pci_setup(int nr, struct pci_sys_data *sys)
{
it8152_io.start = IT8152_IO_BASE + 0x12000;
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index 5747a8baa413..8bb66bca2e3e 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -127,4 +127,8 @@ struct mm_struct;
extern unsigned long arch_randomize_brk(struct mm_struct *mm);
#define arch_randomize_brk arch_randomize_brk
+extern int vectors_user_mapping(void);
+#define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping()
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
+
#endif
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 1261b1f928d9..815efa2d4e07 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -294,6 +294,7 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
extern int valid_phys_addr_range(unsigned long addr, size_t size);
extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
+extern int devmem_is_allowed(unsigned long pfn);
#endif
/*
diff --git a/arch/arm/include/asm/mmu_context.h b/arch/arm/include/asm/mmu_context.h
index a0b3cac0547c..71605d9f8e42 100644
--- a/arch/arm/include/asm/mmu_context.h
+++ b/arch/arm/include/asm/mmu_context.h
@@ -18,7 +18,6 @@
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/proc-fns.h>
-#include <asm-generic/mm_hooks.h>
void __check_kvm_seq(struct mm_struct *mm);
@@ -134,4 +133,32 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
#define deactivate_mm(tsk,mm) do { } while (0)
#define activate_mm(prev,next) switch_mm(prev, next, NULL)
+/*
+ * We are inserting a "fake" vma for the user-accessible vector page so
+ * gdb and friends can get to it through ptrace and /proc/<pid>/mem.
+ * But we also want to remove it before the generic code gets to see it
+ * during process exit or the unmapping of it would cause total havoc.
+ * (the macro is used as remove_vma() is static to mm/mmap.c)
+ */
+#define arch_exit_mmap(mm) \
+do { \
+ struct vm_area_struct *high_vma = find_vma(mm, 0xffff0000); \
+ if (high_vma) { \
+ BUG_ON(high_vma->vm_next); /* it should be last */ \
+ if (high_vma->vm_prev) \
+ high_vma->vm_prev->vm_next = NULL; \
+ else \
+ mm->mmap = NULL; \
+ rb_erase(&high_vma->vm_rb, &mm->mm_rb); \
+ mm->mmap_cache = NULL; \
+ mm->map_count--; \
+ remove_vma(high_vma); \
+ } \
+} while (0)
+
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+ struct mm_struct *mm)
+{
+}
+
#endif
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index ab68cf1ef80f..e90b167ea848 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -317,6 +317,10 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
#define pgprot_dmacoherent(prot) \
__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_BUFFERABLE)
+#define __HAVE_PHYS_MEM_ACCESS_PROT
+struct file;
+extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
+ unsigned long size, pgprot_t vma_prot);
#else
#define pgprot_dmacoherent(prot) \
__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_UNCACHED)
diff --git a/arch/arm/include/asm/seccomp.h b/arch/arm/include/asm/seccomp.h
new file mode 100644
index 000000000000..52b156b341f5
--- /dev/null
+++ b/arch/arm/include/asm/seccomp.h
@@ -0,0 +1,11 @@
+#ifndef _ASM_ARM_SECCOMP_H
+#define _ASM_ARM_SECCOMP_H
+
+#include <linux/unistd.h>
+
+#define __NR_seccomp_read __NR_read
+#define __NR_seccomp_write __NR_write
+#define __NR_seccomp_exit __NR_exit
+#define __NR_seccomp_sigreturn __NR_rt_sigreturn
+
+#endif /* _ASM_ARM_SECCOMP_H */
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 763e29fa8530..7b5cc8dae06e 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -144,6 +144,7 @@ extern void vfp_flush_hwstate(struct thread_info *);
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
#define TIF_FREEZE 19
#define TIF_RESTORE_SIGMASK 20
+#define TIF_SECCOMP 21
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
@@ -153,6 +154,7 @@ extern void vfp_flush_hwstate(struct thread_info *);
#define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)
#define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_SECCOMP (1 << TIF_SECCOMP)
/*
* Change these and you break ASM code in entry-common.S
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 1b560825e1cf..0385a8207b67 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -48,6 +48,8 @@ work_pending:
beq no_work_pending
mov r0, sp @ 'regs'
mov r2, why @ 'syscall'
+ tst r1, #_TIF_SIGPENDING @ delivering a signal?
+ movne why, #0 @ prevent further restarts
bl do_notify_resume
b ret_slow_syscall @ Check work again
@@ -293,7 +295,6 @@ ENTRY(vector_swi)
get_thread_info tsk
adr tbl, sys_call_table @ load syscall table pointer
- ldr ip, [tsk, #TI_FLAGS] @ check for syscall tracing
#if defined(CONFIG_OABI_COMPAT)
/*
@@ -310,8 +311,20 @@ ENTRY(vector_swi)
eor scno, scno, #__NR_SYSCALL_BASE @ check OS number
#endif
+ ldr r10, [tsk, #TI_FLAGS] @ check for syscall tracing
stmdb sp!, {r4, r5} @ push fifth and sixth args
- tst ip, #_TIF_SYSCALL_TRACE @ are we tracing syscalls?
+
+#ifdef CONFIG_SECCOMP
+ tst r10, #_TIF_SECCOMP
+ beq 1f
+ mov r0, scno
+ bl __secure_computing
+ add r0, sp, #S_R0 + S_OFF @ pointer to regs
+ ldmia r0, {r0 - r3} @ have to reload r0 - r3
+1:
+#endif
+
+ tst r10, #_TIF_SYSCALL_TRACE @ are we tracing syscalls?
bne __sys_trace
cmp scno, #NR_syscalls @ check upper syscall limit
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 401e38be1f78..66ac9c926200 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -458,3 +458,24 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
unsigned long range_end = mm->brk + 0x02000000;
return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
}
+
+/*
+ * The vectors page is always readable from user space for the
+ * atomic helpers and the signal restart code. Let's declare a mapping
+ * for it so it is visible through ptrace and /proc/<pid>/mem.
+ */
+
+int vectors_user_mapping(void)
+{
+ struct mm_struct *mm = current->mm;
+ return install_special_mapping(mm, 0xffff0000, PAGE_SIZE,
+ VM_READ | VM_EXEC |
+ VM_MAYREAD | VM_MAYEXEC |
+ VM_ALWAYSDUMP | VM_RESERVED,
+ NULL);
+}
+
+const char *arch_vma_name(struct vm_area_struct *vma)
+{
+ return (vma->vm_start == 0xffff0000) ? "[vectors]" : NULL;
+}
diff --git a/arch/arm/mach-aaec2000/include/mach/vmalloc.h b/arch/arm/mach-aaec2000/include/mach/vmalloc.h
index 551f68f666bf..cff4e0a996ce 100644
--- a/arch/arm/mach-aaec2000/include/mach/vmalloc.h
+++ b/arch/arm/mach-aaec2000/include/mach/vmalloc.h
@@ -11,6 +11,6 @@
#ifndef __ASM_ARCH_VMALLOC_H
#define __ASM_ARCH_VMALLOC_H
-#define VMALLOC_END (PAGE_OFFSET + 0x10000000)
+#define VMALLOC_END 0xd0000000
#endif /* __ASM_ARCH_VMALLOC_H */
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 5e71ccd5e7d3..1276babf84d5 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -426,7 +426,7 @@ static struct i2c_gpio_platform_data pdata_i2c0 = {
.sda_is_open_drain = 1,
.scl_pin = AT91_PIN_PA21,
.scl_is_open_drain = 1,
- .udelay = 2, /* ~100 kHz */
+ .udelay = 5, /* ~100 kHz */
};
static struct platform_device at91sam9g45_twi0_device = {
@@ -440,7 +440,7 @@ static struct i2c_gpio_platform_data pdata_i2c1 = {
.sda_is_open_drain = 1,
.scl_pin = AT91_PIN_PB11,
.scl_is_open_drain = 1,
- .udelay = 2, /* ~100 kHz */
+ .udelay = 5, /* ~100 kHz */
};
static struct platform_device at91sam9g45_twi1_device = {
diff --git a/arch/arm/mach-bcmring/include/mach/vmalloc.h b/arch/arm/mach-bcmring/include/mach/vmalloc.h
index 35e2ead8395c..3db3a09fd398 100644
--- a/arch/arm/mach-bcmring/include/mach/vmalloc.h
+++ b/arch/arm/mach-bcmring/include/mach/vmalloc.h
@@ -22,4 +22,4 @@
* 0xe0000000 to 0xefffffff. This gives us 256 MB of vm space and handles
* larger physical memory designs better.
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x30000000)
+#define VMALLOC_END 0xf0000000
diff --git a/arch/arm/mach-clps711x/include/mach/vmalloc.h b/arch/arm/mach-clps711x/include/mach/vmalloc.h
index ea6cc7beff28..30b3a287ed88 100644
--- a/arch/arm/mach-clps711x/include/mach/vmalloc.h
+++ b/arch/arm/mach-clps711x/include/mach/vmalloc.h
@@ -17,4 +17,4 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x10000000)
+#define VMALLOC_END 0xd0000000
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 3d996b659ff4..9be261beae7d 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -769,8 +769,7 @@ static struct map_desc dm355_io_desc[] = {
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(0x00010000),
.length = SZ_32K,
- /* MT_MEMORY_NONCACHED requires supersection alignment */
- .type = MT_DEVICE,
+ .type = MT_MEMORY_NONCACHED,
},
};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 6b6f4c643709..7781e35daec3 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -969,8 +969,7 @@ static struct map_desc dm365_io_desc[] = {
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(0x00010000),
.length = SZ_32K,
- /* MT_MEMORY_NONCACHED requires supersection alignment */
- .type = MT_DEVICE,
+ .type = MT_MEMORY_NONCACHED,
},
};
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 40fec315c99a..5e5b0a7831fb 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -653,8 +653,7 @@ static struct map_desc dm644x_io_desc[] = {
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(0x00008000),
.length = SZ_16K,
- /* MT_MEMORY_NONCACHED requires supersection alignment */
- .type = MT_DEVICE,
+ .type = MT_MEMORY_NONCACHED,
},
};
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index e4a3df1872ac..26e8a9c7f50b 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -737,8 +737,7 @@ static struct map_desc dm646x_io_desc[] = {
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(0x00010000),
.length = SZ_32K,
- /* MT_MEMORY_NONCACHED requires supersection alignment */
- .type = MT_DEVICE,
+ .type = MT_MEMORY_NONCACHED,
},
};
diff --git a/arch/arm/mach-dove/include/mach/io.h b/arch/arm/mach-dove/include/mach/io.h
index 3b3e4721ce2e..eb4936ff90ad 100644
--- a/arch/arm/mach-dove/include/mach/io.h
+++ b/arch/arm/mach-dove/include/mach/io.h
@@ -13,8 +13,8 @@
#define IO_SPACE_LIMIT 0xffffffff
-#define __io(a) ((void __iomem *)(((a) - DOVE_PCIE0_IO_PHYS_BASE) +\
- DOVE_PCIE0_IO_VIRT_BASE))
-#define __mem_pci(a) (a)
+#define __io(a) ((void __iomem *)(((a) - DOVE_PCIE0_IO_BUS_BASE) + \
+ DOVE_PCIE0_IO_VIRT_BASE))
+#define __mem_pci(a) (a)
#endif
diff --git a/arch/arm/mach-ebsa110/include/mach/vmalloc.h b/arch/arm/mach-ebsa110/include/mach/vmalloc.h
index 9b44c19e95ec..60bde56fba4c 100644
--- a/arch/arm/mach-ebsa110/include/mach/vmalloc.h
+++ b/arch/arm/mach-ebsa110/include/mach/vmalloc.h
@@ -7,4 +7,4 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x1f000000)
+#define VMALLOC_END 0xdf000000
diff --git a/arch/arm/mach-footbridge/include/mach/vmalloc.h b/arch/arm/mach-footbridge/include/mach/vmalloc.h
index d0958d860a3c..0ffbb7c85e59 100644
--- a/arch/arm/mach-footbridge/include/mach/vmalloc.h
+++ b/arch/arm/mach-footbridge/include/mach/vmalloc.h
@@ -7,4 +7,4 @@
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x30000000)
+#define VMALLOC_END 0xf0000000
diff --git a/arch/arm/mach-h720x/include/mach/vmalloc.h b/arch/arm/mach-h720x/include/mach/vmalloc.h
index ff1460d6841b..a45915b88756 100644
--- a/arch/arm/mach-h720x/include/mach/vmalloc.h
+++ b/arch/arm/mach-h720x/include/mach/vmalloc.h
@@ -5,6 +5,6 @@
#ifndef __ARCH_ARM_VMALLOC_H
#define __ARCH_ARM_VMALLOC_H
-#define VMALLOC_END (PAGE_OFFSET + 0x10000000)
+#define VMALLOC_END 0xd0000000
#endif
diff --git a/arch/arm/mach-integrator/include/mach/vmalloc.h b/arch/arm/mach-integrator/include/mach/vmalloc.h
index e87ab0b37bdd..e056e7cf5645 100644
--- a/arch/arm/mach-integrator/include/mach/vmalloc.h
+++ b/arch/arm/mach-integrator/include/mach/vmalloc.h
@@ -17,4 +17,4 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x10000000)
+#define VMALLOC_END 0xd0000000
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index 61cd4d64b985..24498a932ba6 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -503,6 +503,14 @@ struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys);
}
+int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+ if (mask >= SZ_64M - 1)
+ return 0;
+
+ return -EIO;
+}
+
EXPORT_SYMBOL(ixp4xx_pci_read);
EXPORT_SYMBOL(ixp4xx_pci_write);
diff --git a/arch/arm/mach-ixp4xx/include/mach/hardware.h b/arch/arm/mach-ixp4xx/include/mach/hardware.h
index f91ca6d4fbe8..8138371c406e 100644
--- a/arch/arm/mach-ixp4xx/include/mach/hardware.h
+++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h
@@ -26,6 +26,8 @@
#define PCIBIOS_MAX_MEM 0x4BFFFFFF
#endif
+#define ARCH_HAS_DMA_SET_COHERENT_MASK
+
#define pcibios_assign_all_busses() 1
/* Register locations and bits */
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index 93fc2ec95e76..6e924b398919 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -38,7 +38,7 @@
#define KIRKWOOD_PCIE1_IO_PHYS_BASE 0xf3000000
#define KIRKWOOD_PCIE1_IO_VIRT_BASE 0xfef00000
-#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00000000
+#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00100000
#define KIRKWOOD_PCIE1_IO_SIZE SZ_1M
#define KIRKWOOD_PCIE_IO_PHYS_BASE 0xf2000000
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index 55e7f00836b7..513ad3102d7c 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -117,7 +117,7 @@ static void __init pcie0_ioresources_init(struct pcie_port *pp)
* IORESOURCE_IO
*/
pp->res[0].name = "PCIe 0 I/O Space";
- pp->res[0].start = KIRKWOOD_PCIE_IO_PHYS_BASE;
+ pp->res[0].start = KIRKWOOD_PCIE_IO_BUS_BASE;
pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1;
pp->res[0].flags = IORESOURCE_IO;
@@ -139,7 +139,7 @@ static void __init pcie1_ioresources_init(struct pcie_port *pp)
* IORESOURCE_IO
*/
pp->res[0].name = "PCIe 1 I/O Space";
- pp->res[0].start = KIRKWOOD_PCIE1_IO_PHYS_BASE;
+ pp->res[0].start = KIRKWOOD_PCIE1_IO_BUS_BASE;
pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE1_IO_SIZE - 1;
pp->res[0].flags = IORESOURCE_IO;
diff --git a/arch/arm/mach-mmp/include/mach/system.h b/arch/arm/mach-mmp/include/mach/system.h
index 4f5b0e0ce6cf..1a8a25edb1b4 100644
--- a/arch/arm/mach-mmp/include/mach/system.h
+++ b/arch/arm/mach-mmp/include/mach/system.h
@@ -9,6 +9,8 @@
#ifndef __ASM_MACH_SYSTEM_H
#define __ASM_MACH_SYSTEM_H
+#include <mach/cputype.h>
+
static inline void arch_idle(void)
{
cpu_do_idle();
@@ -16,6 +18,9 @@ static inline void arch_idle(void)
static inline void arch_reset(char mode, const char *cmd)
{
- cpu_reset(0);
+ if (cpu_is_pxa168())
+ cpu_reset(0xffff0000);
+ else
+ cpu_reset(0);
}
#endif /* __ASM_MACH_SYSTEM_H */
diff --git a/arch/arm/mach-msm/include/mach/vmalloc.h b/arch/arm/mach-msm/include/mach/vmalloc.h
index 05f81fd8623c..31a32ad062dc 100644
--- a/arch/arm/mach-msm/include/mach/vmalloc.h
+++ b/arch/arm/mach-msm/include/mach/vmalloc.h
@@ -16,7 +16,7 @@
#ifndef __ASM_ARCH_MSM_VMALLOC_H
#define __ASM_ARCH_MSM_VMALLOC_H
-#define VMALLOC_END (PAGE_OFFSET + 0x10000000)
+#define VMALLOC_END 0xd0000000
#endif
diff --git a/arch/arm/mach-mx5/cpu.c b/arch/arm/mach-mx5/cpu.c
index 2d37785e3857..eaacb6e9b5d0 100644
--- a/arch/arm/mach-mx5/cpu.c
+++ b/arch/arm/mach-mx5/cpu.c
@@ -70,6 +70,25 @@ int mx51_revision(void)
}
EXPORT_SYMBOL(mx51_revision);
+#ifdef CONFIG_NEON
+
+/*
+ * All versions of the silicon before Rev. 3 have broken NEON implementations.
+ * Dependent on link order - so the assumption is that vfp_init is called
+ * before us.
+ */
+static int __init mx51_neon_fixup(void)
+{
+ if (mx51_revision() < MX51_CHIP_REV_3_0 && (elf_hwcap & HWCAP_NEON)) {
+ elf_hwcap &= ~HWCAP_NEON;
+ pr_info("Turning off NEON support, detected broken NEON implementation\n");
+ }
+ return 0;
+}
+
+late_initcall(mx51_neon_fixup);
+#endif
+
static int __init post_cpu_init(void)
{
unsigned int reg;
diff --git a/arch/arm/mach-netx/include/mach/vmalloc.h b/arch/arm/mach-netx/include/mach/vmalloc.h
index 25d5cc676e0f..7cca3574308f 100644
--- a/arch/arm/mach-netx/include/mach/vmalloc.h
+++ b/arch/arm/mach-netx/include/mach/vmalloc.h
@@ -16,4 +16,4 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x10000000)
+#define VMALLOC_END 0xd0000000
diff --git a/arch/arm/mach-omap1/include/mach/vmalloc.h b/arch/arm/mach-omap1/include/mach/vmalloc.h
index 1b2af14df151..b001f67d695b 100644
--- a/arch/arm/mach-omap1/include/mach/vmalloc.h
+++ b/arch/arm/mach-omap1/include/mach/vmalloc.h
@@ -17,4 +17,4 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x18000000)
+#define VMALLOC_END 0xd8000000
diff --git a/arch/arm/mach-omap2/include/mach/vmalloc.h b/arch/arm/mach-omap2/include/mach/vmalloc.h
index 9ce9b6e8ad23..4da31e997efe 100644
--- a/arch/arm/mach-omap2/include/mach/vmalloc.h
+++ b/arch/arm/mach-omap2/include/mach/vmalloc.h
@@ -17,4 +17,4 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x38000000)
+#define VMALLOC_END 0xf8000000
diff --git a/arch/arm/mach-pnx4008/include/mach/vmalloc.h b/arch/arm/mach-pnx4008/include/mach/vmalloc.h
index 2ad398378aed..31b65ee07b0b 100644
--- a/arch/arm/mach-pnx4008/include/mach/vmalloc.h
+++ b/arch/arm/mach-pnx4008/include/mach/vmalloc.h
@@ -17,4 +17,4 @@
* The vmalloc() routines leaves a hole of 4kB between each vmalloced
* area for the same reason. ;)
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x10000000)
+#define VMALLOC_END 0xd0000000
diff --git a/arch/arm/mach-pxa/cpufreq-pxa2xx.c b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
index 50d5939a78f1..58093d9e07be 100644
--- a/arch/arm/mach-pxa/cpufreq-pxa2xx.c
+++ b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
@@ -312,8 +312,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
freqs.cpu = policy->cpu;
if (freq_debug)
- pr_debug(KERN_INFO "Changing CPU frequency to %d Mhz, "
- "(SDRAM %d Mhz)\n",
+ pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
freqs.new / 1000, (pxa_freq_settings[idx].div2) ?
(new_freq_mem / 2000) : (new_freq_mem / 1000));
diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h
index 7f64d24cd564..814f1458a06a 100644
--- a/arch/arm/mach-pxa/include/mach/hardware.h
+++ b/arch/arm/mach-pxa/include/mach/hardware.h
@@ -264,23 +264,35 @@
* <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
* == 0x3 for pxa300/pxa310/pxa320
*/
+#if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
#define __cpu_is_pxa2xx(id) \
({ \
unsigned int _id = (id) >> 13 & 0x7; \
_id <= 0x2; \
})
+#else
+#define __cpu_is_pxa2xx(id) (0)
+#endif
+#ifdef CONFIG_PXA3xx
#define __cpu_is_pxa3xx(id) \
({ \
unsigned int _id = (id) >> 13 & 0x7; \
_id == 0x3; \
})
+#else
+#define __cpu_is_pxa3xx(id) (0)
+#endif
+#if defined(CONFIG_CPU_PXA930) || defined(CONFIG_CPU_PXA935)
#define __cpu_is_pxa93x(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x683 || _id == 0x693; \
})
+#else
+#define __cpu_is_pxa93x(id) (0)
+#endif
#define cpu_is_pxa2xx() \
({ \
@@ -309,7 +321,7 @@ extern unsigned long get_clock_tick_rate(void);
#define PCIBIOS_MIN_IO 0
#define PCIBIOS_MIN_MEM 0
#define pcibios_assign_all_busses() 1
+#define ARCH_HAS_DMA_SET_COHERENT_MASK
#endif
-
#endif /* _ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-pxa/include/mach/io.h b/arch/arm/mach-pxa/include/mach/io.h
index 262691fb97d8..fdca3be47d9b 100644
--- a/arch/arm/mach-pxa/include/mach/io.h
+++ b/arch/arm/mach-pxa/include/mach/io.h
@@ -6,6 +6,8 @@
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H
+#include <mach/hardware.h>
+
#define IO_SPACE_LIMIT 0xffffffff
/*
diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c
index 77ad6d34ab5b..405b92a29793 100644
--- a/arch/arm/mach-pxa/palm27x.c
+++ b/arch/arm/mach-pxa/palm27x.c
@@ -469,9 +469,13 @@ static struct i2c_board_info __initdata palm27x_pi2c_board_info[] = {
},
};
+static struct i2c_pxa_platform_data palm27x_i2c_power_info = {
+ .use_pio = 1,
+};
+
void __init palm27x_pmic_init(void)
{
i2c_register_board_info(1, ARRAY_AND_SIZE(palm27x_pi2c_board_info));
- pxa27x_set_i2c_power_info(NULL);
+ pxa27x_set_i2c_power_info(&palm27x_i2c_power_info);
}
#endif
diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index c9b747cedea8..37d6173bbb66 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -240,6 +240,7 @@ static void __init vpac270_onenand_init(void) {}
#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
static struct pxamci_platform_data vpac270_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
+ .gpio_power = -1,
.gpio_card_detect = GPIO53_VPAC270_SD_DETECT_N,
.gpio_card_ro = GPIO52_VPAC270_SD_READONLY,
.detect_delay_ms = 200,
diff --git a/arch/arm/mach-rpc/include/mach/vmalloc.h b/arch/arm/mach-rpc/include/mach/vmalloc.h
index 9a96fd69e705..3bcd86fadb81 100644
--- a/arch/arm/mach-rpc/include/mach/vmalloc.h
+++ b/arch/arm/mach-rpc/include/mach/vmalloc.h
@@ -7,4 +7,4 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x1c000000)
+#define VMALLOC_END 0xdc000000
diff --git a/arch/arm/mach-s3c64xx/dev-spi.c b/arch/arm/mach-s3c64xx/dev-spi.c
index a492b982aa06..405e62128917 100644
--- a/arch/arm/mach-s3c64xx/dev-spi.c
+++ b/arch/arm/mach-s3c64xx/dev-spi.c
@@ -18,10 +18,11 @@
#include <mach/map.h>
#include <mach/gpio-bank-c.h>
#include <mach/spi-clocks.h>
+#include <mach/irqs.h>
#include <plat/s3c64xx-spi.h>
#include <plat/gpio-cfg.h>
-#include <plat/irqs.h>
+#include <plat/devs.h>
static char *spi_src_clks[] = {
[S3C64XX_SPI_SRCCLK_PCLK] = "pclk",
diff --git a/arch/arm/mach-s3c64xx/mach-real6410.c b/arch/arm/mach-s3c64xx/mach-real6410.c
index 5c07d013b23d..e130379ba0e8 100644
--- a/arch/arm/mach-s3c64xx/mach-real6410.c
+++ b/arch/arm/mach-s3c64xx/mach-real6410.c
@@ -30,73 +30,73 @@
#include <plat/devs.h>
#include <plat/regs-serial.h>
-#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
-#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
-#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+#define UCON (S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK)
+#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
+#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
[0] = {
- .hwport = 0,
- .flags = 0,
- .ucon = UCON,
- .ulcon = ULCON,
- .ufcon = UFCON,
+ .hwport = 0,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
},
[1] = {
- .hwport = 1,
- .flags = 0,
- .ucon = UCON,
- .ulcon = ULCON,
- .ufcon = UFCON,
+ .hwport = 1,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
},
[2] = {
- .hwport = 2,
- .flags = 0,
- .ucon = UCON,
- .ulcon = ULCON,
- .ufcon = UFCON,
+ .hwport = 2,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
},
[3] = {
- .hwport = 3,
- .flags = 0,
- .ucon = UCON,
- .ulcon = ULCON,
- .ufcon = UFCON,
+ .hwport = 3,
+ .flags = 0,
+ .ucon = UCON,
+ .ulcon = ULCON,
+ .ufcon = UFCON,
},
};
/* DM9000AEP 10/100 ethernet controller */
static struct resource real6410_dm9k_resource[] = {
- [0] = {
- .start = S3C64XX_PA_XM0CSN1,
- .end = S3C64XX_PA_XM0CSN1 + 1,
- .flags = IORESOURCE_MEM
- },
- [1] = {
- .start = S3C64XX_PA_XM0CSN1 + 4,
- .end = S3C64XX_PA_XM0CSN1 + 5,
- .flags = IORESOURCE_MEM
- },
- [2] = {
- .start = S3C_EINT(7),
- .end = S3C_EINT(7),
- .flags = IORESOURCE_IRQ,
- }
+ [0] = {
+ .start = S3C64XX_PA_XM0CSN1,
+ .end = S3C64XX_PA_XM0CSN1 + 1,
+ .flags = IORESOURCE_MEM
+ },
+ [1] = {
+ .start = S3C64XX_PA_XM0CSN1 + 4,
+ .end = S3C64XX_PA_XM0CSN1 + 5,
+ .flags = IORESOURCE_MEM
+ },
+ [2] = {
+ .start = S3C_EINT(7),
+ .end = S3C_EINT(7),
+ .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL
+ }
};
static struct dm9000_plat_data real6410_dm9k_pdata = {
- .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
+ .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
};
static struct platform_device real6410_device_eth = {
- .name = "dm9000",
- .id = -1,
- .num_resources = ARRAY_SIZE(real6410_dm9k_resource),
- .resource = real6410_dm9k_resource,
- .dev = {
- .platform_data = &real6410_dm9k_pdata,
- },
+ .name = "dm9000",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(real6410_dm9k_resource),
+ .resource = real6410_dm9k_resource,
+ .dev = {
+ .platform_data = &real6410_dm9k_pdata,
+ },
};
static struct platform_device *real6410_devices[] __initdata = {
@@ -129,12 +129,12 @@ static void __init real6410_machine_init(void)
/* set timing for nCS1 suitable for ethernet chip */
__raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
- (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
- (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
- (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
- (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
- (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
- (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
+ (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
+ (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
+ (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
+ (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
+ (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
+ (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
}
diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c
index af91fefef2c6..cfecd70657cb 100644
--- a/arch/arm/mach-s5pv210/clock.c
+++ b/arch/arm/mach-s5pv210/clock.c
@@ -281,6 +281,24 @@ static struct clk init_clocks_disable[] = {
.enable = s5pv210_clk_ip0_ctrl,
.ctrlbit = (1<<29),
}, {
+ .name = "fimc",
+ .id = 0,
+ .parent = &clk_hclk_dsys.clk,
+ .enable = s5pv210_clk_ip0_ctrl,
+ .ctrlbit = (1 << 24),
+ }, {
+ .name = "fimc",
+ .id = 1,
+ .parent = &clk_hclk_dsys.clk,
+ .enable = s5pv210_clk_ip0_ctrl,
+ .ctrlbit = (1 << 25),
+ }, {
+ .name = "fimc",
+ .id = 2,
+ .parent = &clk_hclk_dsys.clk,
+ .enable = s5pv210_clk_ip0_ctrl,
+ .ctrlbit = (1 << 26),
+ }, {
.name = "otg",
.id = -1,
.parent = &clk_hclk_psys.clk,
@@ -357,7 +375,7 @@ static struct clk init_clocks_disable[] = {
.id = 1,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
- .ctrlbit = (1<<8),
+ .ctrlbit = (1 << 10),
}, {
.name = "i2c",
.id = 2,
diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c
index b9f4d677cf55..77f456c91ad3 100644
--- a/arch/arm/mach-s5pv210/cpu.c
+++ b/arch/arm/mach-s5pv210/cpu.c
@@ -47,7 +47,7 @@ static struct map_desc s5pv210_iodesc[] __initdata = {
{
.virtual = (unsigned long)S5P_VA_SYSTIMER,
.pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER),
- .length = SZ_1M,
+ .length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)VA_VIC2,
diff --git a/arch/arm/mach-shark/include/mach/vmalloc.h b/arch/arm/mach-shark/include/mach/vmalloc.h
index f6c6837c5451..8e845b6a7cb5 100644
--- a/arch/arm/mach-shark/include/mach/vmalloc.h
+++ b/arch/arm/mach-shark/include/mach/vmalloc.h
@@ -1,4 +1,4 @@
/*
* arch/arm/mach-shark/include/mach/vmalloc.h
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x10000000)
+#define VMALLOC_END 0xd0000000
diff --git a/arch/arm/mach-u300/include/mach/gpio.h b/arch/arm/mach-u300/include/mach/gpio.h
index 7b1fc984abb6..d5a71abcbaea 100644
--- a/arch/arm/mach-u300/include/mach/gpio.h
+++ b/arch/arm/mach-u300/include/mach/gpio.h
@@ -273,6 +273,9 @@ extern void gpio_pullup(unsigned gpio, int value);
extern int gpio_get_value(unsigned gpio);
extern void gpio_set_value(unsigned gpio, int value);
+#define gpio_get_value_cansleep gpio_get_value
+#define gpio_set_value_cansleep gpio_set_value
+
/* wrappers to sleep-enable the previous two functions */
static inline unsigned gpio_to_irq(unsigned gpio)
{
diff --git a/arch/arm/mach-versatile/include/mach/vmalloc.h b/arch/arm/mach-versatile/include/mach/vmalloc.h
index 427e3612db5d..ebd8a2543d3b 100644
--- a/arch/arm/mach-versatile/include/mach/vmalloc.h
+++ b/arch/arm/mach-versatile/include/mach/vmalloc.h
@@ -18,4 +18,4 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#define VMALLOC_END (PAGE_OFFSET + 0x18000000)
+#define VMALLOC_END 0xd8000000
diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c
index 577df6cccb08..efb127022d42 100644
--- a/arch/arm/mach-vexpress/ct-ca9x4.c
+++ b/arch/arm/mach-vexpress/ct-ca9x4.c
@@ -227,7 +227,13 @@ static void ct_ca9x4_init(void)
int i;
#ifdef CONFIG_CACHE_L2X0
- l2x0_init(MMIO_P2V(CT_CA9X4_L2CC), 0x00000000, 0xfe0fffff);
+ void __iomem *l2x0_base = MMIO_P2V(CT_CA9X4_L2CC);
+
+ /* set RAM latencies to 1 cycle for this core tile. */
+ writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL);
+ writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL);
+
+ l2x0_init(l2x0_base, 0x00400000, 0xfe0fffff);
#endif
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index d073b64ae87e..724ba3bce72c 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -885,8 +885,23 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
if (ai_usermode & UM_SIGNAL)
force_sig(SIGBUS, current);
- else
- set_cr(cr_no_alignment);
+ else {
+ /*
+ * We're about to disable the alignment trap and return to
+ * user space. But if an interrupt occurs before actually
+ * reaching user space, then the IRQ vector entry code will
+ * notice that we were still in kernel space and therefore
+ * the alignment trap won't be re-enabled in that case as it
+ * is presumed to be always on from kernel space.
+ * Let's prevent that race by disabling interrupts here (they
+ * are disabled on the way back to user space anyway in
+ * entry-common.S) and disable the alignment trap only if
+ * there is no work pending for this thread.
+ */
+ raw_local_irq_disable();
+ if (!(current_thread_info()->flags & _TIF_WORK_MASK))
+ set_cr(cr_no_alignment);
+ }
return 0;
}
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 4f5b39687df5..b0a98305055c 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -144,3 +144,25 @@ int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
{
return !(pfn + (size >> PAGE_SHIFT) > 0x00100000);
}
+
+#ifdef CONFIG_STRICT_DEVMEM
+
+#include <linux/ioport.h>
+
+/*
+ * devmem_is_allowed() checks to see if /dev/mem access to a certain
+ * address is valid. The argument is a physical page number.
+ * We mimic x86 here by disallowing access to system RAM as well as
+ * device-exclusive MMIO regions. This effectively disable read()/write()
+ * on /dev/mem.
+ */
+int devmem_is_allowed(unsigned long pfn)
+{
+ if (iomem_is_exclusive(pfn << PAGE_SHIFT))
+ return 0;
+ if (!page_is_ram(pfn))
+ return 1;
+ return 0;
+}
+
+#endif
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 6e1c4f6a2b3f..6a3a2d0cd6db 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -15,6 +15,7 @@
#include <linux/nodemask.h>
#include <linux/memblock.h>
#include <linux/sort.h>
+#include <linux/fs.h>
#include <asm/cputype.h>
#include <asm/sections.h>
@@ -246,6 +247,9 @@ static struct mem_type mem_types[] = {
.domain = DOMAIN_USER,
},
[MT_MEMORY] = {
+ .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
+ L_PTE_USER | L_PTE_EXEC,
+ .prot_l1 = PMD_TYPE_TABLE,
.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
.domain = DOMAIN_KERNEL,
},
@@ -254,6 +258,9 @@ static struct mem_type mem_types[] = {
.domain = DOMAIN_KERNEL,
},
[MT_MEMORY_NONCACHED] = {
+ .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
+ L_PTE_USER | L_PTE_EXEC | L_PTE_MT_BUFFERABLE,
+ .prot_l1 = PMD_TYPE_TABLE,
.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
.domain = DOMAIN_KERNEL,
},
@@ -411,9 +418,12 @@ static void __init build_mem_type_table(void)
* Enable CPU-specific coherency if supported.
* (Only available on XSC3 at the moment.)
*/
- if (arch_is_coherent() && cpu_is_xsc3())
+ if (arch_is_coherent() && cpu_is_xsc3()) {
mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
-
+ mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
+ mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
+ mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
+ }
/*
* ARMv6 and above have extended page tables.
*/
@@ -438,7 +448,9 @@ static void __init build_mem_type_table(void)
mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
+ mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
+ mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
#endif
}
@@ -475,6 +487,8 @@ static void __init build_mem_type_table(void)
mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;
mem_types[MT_MEMORY].prot_sect |= ecc_mask | cp->pmd;
+ mem_types[MT_MEMORY].prot_pte |= kern_pgprot;
+ mem_types[MT_MEMORY_NONCACHED].prot_sect |= ecc_mask;
mem_types[MT_ROM].prot_sect |= cp->pmd;
switch (cp->pmd) {
@@ -498,6 +512,19 @@ static void __init build_mem_type_table(void)
}
}
+#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
+pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
+ unsigned long size, pgprot_t vma_prot)
+{
+ if (!pfn_valid(pfn))
+ return pgprot_noncached(vma_prot);
+ else if (file->f_flags & O_SYNC)
+ return pgprot_writecombine(vma_prot);
+ return vma_prot;
+}
+EXPORT_SYMBOL(phys_mem_access_prot);
+#endif
+
#define vectors_base() (vectors_high() ? 0xffff0000 : 0)
static void __init *early_alloc(unsigned long sz)
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 6a8506d99ee9..7563ff0141bd 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -186,13 +186,14 @@ cpu_v7_name:
* It is assumed that:
* - cache type register is implemented
*/
-__v7_setup:
+__v7_ca9mp_setup:
#ifdef CONFIG_SMP
mrc p15, 0, r0, c1, c0, 1
tst r0, #(1 << 6) @ SMP/nAMP mode enabled?
orreq r0, r0, #(1 << 6) | (1 << 0) @ Enable SMP/nAMP mode and
mcreq p15, 0, r0, c1, c0, 1 @ TLB ops broadcasting
#endif
+__v7_setup:
adr r12, __v7_setup_stack @ the local stack
stmia r12, {r0-r5, r7, r9, r11, lr}
bl v7_flush_dcache_all
@@ -201,11 +202,16 @@ __v7_setup:
mrc p15, 0, r0, c0, c0, 0 @ read main ID register
and r10, r0, #0xff000000 @ ARM?
teq r10, #0x41000000
- bne 2f
+ bne 3f
and r5, r0, #0x00f00000 @ variant
and r6, r0, #0x0000000f @ revision
- orr r0, r6, r5, lsr #20-4 @ combine variant and revision
+ orr r6, r6, r5, lsr #20-4 @ combine variant and revision
+ ubfx r0, r0, #4, #12 @ primary part number
+ /* Cortex-A8 Errata */
+ ldr r10, =0x00000c08 @ Cortex-A8 primary part number
+ teq r0, r10
+ bne 2f
#ifdef CONFIG_ARM_ERRATA_430973
teq r5, #0x00100000 @ only present in r1p*
mrceq p15, 0, r10, c1, c0, 1 @ read aux control register
@@ -213,21 +219,42 @@ __v7_setup:
mcreq p15, 0, r10, c1, c0, 1 @ write aux control register
#endif
#ifdef CONFIG_ARM_ERRATA_458693
- teq r0, #0x20 @ only present in r2p0
+ teq r6, #0x20 @ only present in r2p0
mrceq p15, 0, r10, c1, c0, 1 @ read aux control register
orreq r10, r10, #(1 << 5) @ set L1NEON to 1
orreq r10, r10, #(1 << 9) @ set PLDNOP to 1
mcreq p15, 0, r10, c1, c0, 1 @ write aux control register
#endif
#ifdef CONFIG_ARM_ERRATA_460075
- teq r0, #0x20 @ only present in r2p0
+ teq r6, #0x20 @ only present in r2p0
mrceq p15, 1, r10, c9, c0, 2 @ read L2 cache aux ctrl register
tsteq r10, #1 << 22
orreq r10, r10, #(1 << 22) @ set the Write Allocate disable bit
mcreq p15, 1, r10, c9, c0, 2 @ write the L2 cache aux ctrl register
#endif
+ b 3f
+
+ /* Cortex-A9 Errata */
+2: ldr r10, =0x00000c09 @ Cortex-A9 primary part number
+ teq r0, r10
+ bne 3f
+#ifdef CONFIG_ARM_ERRATA_742230
+ cmp r6, #0x22 @ only present up to r2p2
+ mrcle p15, 0, r10, c15, c0, 1 @ read diagnostic register
+ orrle r10, r10, #1 << 4 @ set bit #4
+ mcrle p15, 0, r10, c15, c0, 1 @ write diagnostic register
+#endif
+#ifdef CONFIG_ARM_ERRATA_742231
+ teq r6, #0x20 @ present in r2p0
+ teqne r6, #0x21 @ present in r2p1
+ teqne r6, #0x22 @ present in r2p2
+ mrceq p15, 0, r10, c15, c0, 1 @ read diagnostic register
+ orreq r10, r10, #1 << 12 @ set bit #12
+ orreq r10, r10, #1 << 22 @ set bit #22
+ mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register
+#endif
-2: mov r10, #0
+3: mov r10, #0
#ifdef HARVARD_CACHE
mcr p15, 0, r10, c7, c5, 0 @ I+BTB cache invalidate
#endif
@@ -323,6 +350,29 @@ cpu_elf_name:
.section ".proc.info.init", #alloc, #execinstr
+ .type __v7_ca9mp_proc_info, #object
+__v7_ca9mp_proc_info:
+ .long 0x410fc090 @ Required ID value
+ .long 0xff0ffff0 @ Mask for ID
+ .long PMD_TYPE_SECT | \
+ PMD_SECT_AP_WRITE | \
+ PMD_SECT_AP_READ | \
+ PMD_FLAGS
+ .long PMD_TYPE_SECT | \
+ PMD_SECT_XN | \
+ PMD_SECT_AP_WRITE | \
+ PMD_SECT_AP_READ
+ b __v7_ca9mp_setup
+ .long cpu_arch_name
+ .long cpu_elf_name
+ .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+ .long cpu_v7_name
+ .long v7_processor_functions
+ .long v7wbi_tlb_fns
+ .long v6_user_fns
+ .long v7_cache_fns
+ .size __v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info
+
/*
* Match any ARMv7 processor core.
*/
diff --git a/arch/arm/plat-nomadik/timer.c b/arch/arm/plat-nomadik/timer.c
index ea3ca86c5283..aedf9c1d645e 100644
--- a/arch/arm/plat-nomadik/timer.c
+++ b/arch/arm/plat-nomadik/timer.c
@@ -1,5 +1,5 @@
/*
- * linux/arch/arm/mach-nomadik/timer.c
+ * linux/arch/arm/plat-nomadik/timer.c
*
* Copyright (C) 2008 STMicroelectronics
* Copyright (C) 2010 Alessandro Rubini
@@ -75,7 +75,7 @@ static void nmdk_clkevt_mode(enum clock_event_mode mode,
cr = readl(mtu_base + MTU_CR(1));
writel(0, mtu_base + MTU_LR(1));
writel(cr | MTU_CRn_ENA, mtu_base + MTU_CR(1));
- writel(0x2, mtu_base + MTU_IMSC);
+ writel(1 << 1, mtu_base + MTU_IMSC);
break;
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
@@ -131,25 +131,23 @@ void __init nmdk_timer_init(void)
{
unsigned long rate;
struct clk *clk0;
- struct clk *clk1;
- u32 cr;
+ u32 cr = MTU_CRn_32BITS;
clk0 = clk_get_sys("mtu0", NULL);
BUG_ON(IS_ERR(clk0));
- clk1 = clk_get_sys("mtu1", NULL);
- BUG_ON(IS_ERR(clk1));
-
clk_enable(clk0);
- clk_enable(clk1);
/*
- * Tick rate is 2.4MHz for Nomadik and 110MHz for ux500:
- * use a divide-by-16 counter if it's more than 16MHz
+ * Tick rate is 2.4MHz for Nomadik and 2.4Mhz, 100MHz or 133 MHz
+ * for ux500.
+ * Use a divide-by-16 counter if the tick rate is more than 32MHz.
+ * At 32 MHz, the timer (with 32 bit counter) can be programmed
+ * to wake-up at a max 127s a head in time. Dividing a 2.4 MHz timer
+ * with 16 gives too low timer resolution.
*/
- cr = MTU_CRn_32BITS;;
rate = clk_get_rate(clk0);
- if (rate > 16 << 20) {
+ if (rate > 32000000) {
rate /= 16;
cr |= MTU_CRn_PRESCALE_16;
} else {
@@ -170,15 +168,8 @@ void __init nmdk_timer_init(void)
pr_err("timer: failed to initialize clock source %s\n",
nmdk_clksrc.name);
- /* Timer 1 is used for events, fix according to rate */
- cr = MTU_CRn_32BITS;
- rate = clk_get_rate(clk1);
- if (rate > 16 << 20) {
- rate /= 16;
- cr |= MTU_CRn_PRESCALE_16;
- } else {
- cr |= MTU_CRn_PRESCALE_1;
- }
+ /* Timer 1 is used for events */
+
clockevents_calc_mult_shift(&nmdk_clkevt, rate, MTU_MIN_RANGE);
writel(cr | MTU_CRn_ONESHOT, mtu_base + MTU_CR(1)); /* off, currently */
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 226b2e858d6c..10b3b4c63372 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -220,20 +220,7 @@ void __init omap_map_sram(void)
if (omap_sram_size == 0)
return;
- if (cpu_is_omap24xx()) {
- omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA;
-
- base = OMAP2_SRAM_PA;
- base = ROUND_DOWN(base, PAGE_SIZE);
- omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
- }
-
if (cpu_is_omap34xx()) {
- omap_sram_io_desc[0].virtual = OMAP3_SRAM_VA;
- base = OMAP3_SRAM_PA;
- base = ROUND_DOWN(base, PAGE_SIZE);
- omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
-
/*
* SRAM must be marked as non-cached on OMAP3 since the
* CORE DPLL M2 divider change code (in SRAM) runs with the
@@ -244,13 +231,11 @@ void __init omap_map_sram(void)
omap_sram_io_desc[0].type = MT_MEMORY_NONCACHED;
}
- if (cpu_is_omap44xx()) {
- omap_sram_io_desc[0].virtual = OMAP4_SRAM_VA;
- base = OMAP4_SRAM_PA;
- base = ROUND_DOWN(base, PAGE_SIZE);
- omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
- }
- omap_sram_io_desc[0].length = 1024 * 1024; /* Use section desc */
+ omap_sram_io_desc[0].virtual = omap_sram_base;
+ base = omap_sram_start;
+ base = ROUND_DOWN(base, PAGE_SIZE);
+ omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
+ omap_sram_io_desc[0].length = ROUND_DOWN(omap_sram_size, PAGE_SIZE);
iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n",
diff --git a/arch/arm/plat-s5p/dev-fimc0.c b/arch/arm/plat-s5p/dev-fimc0.c
index d3f1a9b5d2b5..608770fc1531 100644
--- a/arch/arm/plat-s5p/dev-fimc0.c
+++ b/arch/arm/plat-s5p/dev-fimc0.c
@@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
@@ -18,7 +19,7 @@
static struct resource s5p_fimc0_resource[] = {
[0] = {
.start = S5P_PA_FIMC0,
- .end = S5P_PA_FIMC0 + SZ_1M - 1,
+ .end = S5P_PA_FIMC0 + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
@@ -28,9 +29,15 @@ static struct resource s5p_fimc0_resource[] = {
},
};
+static u64 s5p_fimc0_dma_mask = DMA_BIT_MASK(32);
+
struct platform_device s5p_device_fimc0 = {
.name = "s5p-fimc",
.id = 0,
.num_resources = ARRAY_SIZE(s5p_fimc0_resource),
.resource = s5p_fimc0_resource,
+ .dev = {
+ .dma_mask = &s5p_fimc0_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
};
diff --git a/arch/arm/plat-s5p/dev-fimc1.c b/arch/arm/plat-s5p/dev-fimc1.c
index 41bd6986d0ad..76e3a97a87d3 100644
--- a/arch/arm/plat-s5p/dev-fimc1.c
+++ b/arch/arm/plat-s5p/dev-fimc1.c
@@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
@@ -18,7 +19,7 @@
static struct resource s5p_fimc1_resource[] = {
[0] = {
.start = S5P_PA_FIMC1,
- .end = S5P_PA_FIMC1 + SZ_1M - 1,
+ .end = S5P_PA_FIMC1 + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
@@ -28,9 +29,15 @@ static struct resource s5p_fimc1_resource[] = {
},
};
+static u64 s5p_fimc1_dma_mask = DMA_BIT_MASK(32);
+
struct platform_device s5p_device_fimc1 = {
.name = "s5p-fimc",
.id = 1,
.num_resources = ARRAY_SIZE(s5p_fimc1_resource),
.resource = s5p_fimc1_resource,
+ .dev = {
+ .dma_mask = &s5p_fimc1_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
};
diff --git a/arch/arm/plat-s5p/dev-fimc2.c b/arch/arm/plat-s5p/dev-fimc2.c
index dfddeda6d4a3..24d29816fa2c 100644
--- a/arch/arm/plat-s5p/dev-fimc2.c
+++ b/arch/arm/plat-s5p/dev-fimc2.c
@@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
@@ -18,7 +19,7 @@
static struct resource s5p_fimc2_resource[] = {
[0] = {
.start = S5P_PA_FIMC2,
- .end = S5P_PA_FIMC2 + SZ_1M - 1,
+ .end = S5P_PA_FIMC2 + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
@@ -28,9 +29,15 @@ static struct resource s5p_fimc2_resource[] = {
},
};
+static u64 s5p_fimc2_dma_mask = DMA_BIT_MASK(32);
+
struct platform_device s5p_device_fimc2 = {
.name = "s5p-fimc",
.id = 2,
.num_resources = ARRAY_SIZE(s5p_fimc2_resource),
.resource = s5p_fimc2_resource,
+ .dev = {
+ .dma_mask = &s5p_fimc2_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
};
diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c
index 57b68a50f45e..e3d41eaed1ff 100644
--- a/arch/arm/plat-samsung/gpio-config.c
+++ b/arch/arm/plat-samsung/gpio-config.c
@@ -273,13 +273,13 @@ s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
if (!chip)
return -EINVAL;
- off = chip->chip.base - pin;
+ off = pin - chip->chip.base;
shift = off * 2;
reg = chip->base + 0x0C;
drvstr = __raw_readl(reg);
- drvstr = 0xffff & (0x3 << shift);
drvstr = drvstr >> shift;
+ drvstr &= 0x3;
return (__force s5p_gpio_drvstr_t)drvstr;
}
@@ -296,11 +296,12 @@ int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
if (!chip)
return -EINVAL;
- off = chip->chip.base - pin;
+ off = pin - chip->chip.base;
shift = off * 2;
reg = chip->base + 0x0C;
tmp = __raw_readl(reg);
+ tmp &= ~(0x3 << shift);
tmp |= drvstr << shift;
__raw_writel(tmp, reg);
diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg.h b/arch/arm/plat-samsung/include/plat/gpio-cfg.h
index db4112c6f2be..1c6b92947c5d 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-cfg.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-cfg.h
@@ -143,12 +143,12 @@ extern s3c_gpio_pull_t s3c_gpio_getpull(unsigned int pin);
/* Define values for the drvstr available for each gpio pin.
*
* These values control the value of the output signal driver strength,
- * configurable on most pins on the S5C series.
+ * configurable on most pins on the S5P series.
*/
-#define S5P_GPIO_DRVSTR_LV1 ((__force s5p_gpio_drvstr_t)0x00)
-#define S5P_GPIO_DRVSTR_LV2 ((__force s5p_gpio_drvstr_t)0x01)
-#define S5P_GPIO_DRVSTR_LV3 ((__force s5p_gpio_drvstr_t)0x10)
-#define S5P_GPIO_DRVSTR_LV4 ((__force s5p_gpio_drvstr_t)0x11)
+#define S5P_GPIO_DRVSTR_LV1 ((__force s5p_gpio_drvstr_t)0x0)
+#define S5P_GPIO_DRVSTR_LV2 ((__force s5p_gpio_drvstr_t)0x2)
+#define S5P_GPIO_DRVSTR_LV3 ((__force s5p_gpio_drvstr_t)0x1)
+#define S5P_GPIO_DRVSTR_LV4 ((__force s5p_gpio_drvstr_t)0x3)
/**
* s5c_gpio_get_drvstr() - get the driver streght value of a gpio pin
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index 0974c0ecc594..bab01298b58e 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -121,6 +121,9 @@ static int restore_sigcontext(struct sigcontext __user *sc, int *_gr8)
struct user_context *user = current->thread.user;
unsigned long tbr, psr;
+ /* Always make any pending restarted system calls return -EINTR */
+ current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
tbr = user->i.tbr;
psr = user->i.psr;
if (copy_from_user(user, &sc->sc_context, sizeof(sc->sc_context)))
@@ -250,6 +253,8 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
struct sigframe __user *frame;
int rsig;
+ set_fs(USER_DS);
+
frame = get_sigframe(ka, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
@@ -293,22 +298,23 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
(unsigned long) (frame->retcode + 2));
}
- /* set up registers for signal handler */
- __frame->sp = (unsigned long) frame;
- __frame->lr = (unsigned long) &frame->retcode;
- __frame->gr8 = sig;
-
+ /* Set up registers for the signal handler */
if (current->personality & FDPIC_FUNCPTRS) {
struct fdpic_func_descriptor __user *funcptr =
(struct fdpic_func_descriptor __user *) ka->sa.sa_handler;
- __get_user(__frame->pc, &funcptr->text);
- __get_user(__frame->gr15, &funcptr->GOT);
+ struct fdpic_func_descriptor desc;
+ if (copy_from_user(&desc, funcptr, sizeof(desc)))
+ goto give_sigsegv;
+ __frame->pc = desc.text;
+ __frame->gr15 = desc.GOT;
} else {
__frame->pc = (unsigned long) ka->sa.sa_handler;
__frame->gr15 = 0;
}
- set_fs(USER_DS);
+ __frame->sp = (unsigned long) frame;
+ __frame->lr = (unsigned long) &frame->retcode;
+ __frame->gr8 = sig;
/* the tracer may want to single-step inside the handler */
if (test_thread_flag(TIF_SINGLESTEP))
@@ -323,7 +329,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
return 0;
give_sigsegv:
- force_sig(SIGSEGV, current);
+ force_sigsegv(sig, current);
return -EFAULT;
} /* end setup_frame() */
@@ -338,6 +344,8 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
struct rt_sigframe __user *frame;
int rsig;
+ set_fs(USER_DS);
+
frame = get_sigframe(ka, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
@@ -392,22 +400,23 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
}
/* Set up registers for signal handler */
- __frame->sp = (unsigned long) frame;
- __frame->lr = (unsigned long) &frame->retcode;
- __frame->gr8 = sig;
- __frame->gr9 = (unsigned long) &frame->info;
-
if (current->personality & FDPIC_FUNCPTRS) {
struct fdpic_func_descriptor __user *funcptr =
(struct fdpic_func_descriptor __user *) ka->sa.sa_handler;
- __get_user(__frame->pc, &funcptr->text);
- __get_user(__frame->gr15, &funcptr->GOT);
+ struct fdpic_func_descriptor desc;
+ if (copy_from_user(&desc, funcptr, sizeof(desc)))
+ goto give_sigsegv;
+ __frame->pc = desc.text;
+ __frame->gr15 = desc.GOT;
} else {
__frame->pc = (unsigned long) ka->sa.sa_handler;
__frame->gr15 = 0;
}
- set_fs(USER_DS);
+ __frame->sp = (unsigned long) frame;
+ __frame->lr = (unsigned long) &frame->retcode;
+ __frame->gr8 = sig;
+ __frame->gr9 = (unsigned long) &frame->info;
/* the tracer may want to single-step inside the handler */
if (test_thread_flag(TIF_SINGLESTEP))
@@ -422,7 +431,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
return 0;
give_sigsegv:
- force_sig(SIGSEGV, current);
+ force_sigsegv(sig, current);
return -EFAULT;
} /* end setup_rt_frame() */
@@ -437,7 +446,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
int ret;
/* Are we from a system call? */
- if (in_syscall(__frame)) {
+ if (__frame->syscallno != -1) {
/* If so, check system call restarting.. */
switch (__frame->gr8) {
case -ERESTART_RESTARTBLOCK:
@@ -456,6 +465,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
__frame->gr8 = __frame->orig_gr8;
__frame->pc -= 4;
}
+ __frame->syscallno = -1;
}
/* Set up the stack frame */
@@ -538,10 +548,11 @@ no_signal:
break;
case -ERESTART_RESTARTBLOCK:
- __frame->gr8 = __NR_restart_syscall;
+ __frame->gr7 = __NR_restart_syscall;
__frame->pc -= 4;
break;
}
+ __frame->syscallno = -1;
}
/* if there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/m32r/include/asm/signal.h b/arch/m32r/include/asm/signal.h
index 9c1acb2b1a92..b2eeb0de1c8d 100644
--- a/arch/m32r/include/asm/signal.h
+++ b/arch/m32r/include/asm/signal.h
@@ -157,7 +157,6 @@ typedef struct sigaltstack {
#undef __HAVE_ARCH_SIG_BITOPS
struct pt_regs;
-extern int do_signal(struct pt_regs *regs, sigset_t *oldset);
#define ptrace_signal_deliver(regs, cookie) do { } while (0)
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index 76125777483c..c70545689da8 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -351,6 +351,7 @@
#define __ARCH_WANT_SYS_OLD_GETRLIMIT /*will be unused*/
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __IGNORE_lchown
#define __IGNORE_setuid
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index 403869833b98..225412bc227e 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -235,10 +235,9 @@ work_resched:
work_notifysig: ; deal with pending signals and
; notify-resume requests
mv r0, sp ; arg1 : struct pt_regs *regs
- ldi r1, #0 ; arg2 : sigset_t *oldset
- mv r2, r9 ; arg3 : __u32 thread_info_flags
+ mv r1, r9 ; arg2 : __u32 thread_info_flags
bl do_notify_resume
- bra restore_all
+ bra resume_userspace
; perform syscall exit tracing
ALIGN
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index e555091eb97c..0021ade4cba8 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -592,16 +592,17 @@ void user_enable_single_step(struct task_struct *child)
if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
!= sizeof(insn))
- break;
+ return -EIO;
compute_next_pc(insn, pc, &next_pc, child);
if (next_pc & 0x80000000)
- break;
+ return -EIO;
if (embed_debug_trap(child, next_pc))
- break;
+ return -EIO;
invalidate_cache();
+ return 0;
}
void user_disable_single_step(struct task_struct *child)
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 144b0f124fc7..7bbe38645ed5 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -28,37 +28,6 @@
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-int do_signal(struct pt_regs *, sigset_t *);
-
-asmlinkage int
-sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
- unsigned long r2, unsigned long r3, unsigned long r4,
- unsigned long r5, unsigned long r6, struct pt_regs *regs)
-{
- sigset_t newset;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
-
- if (copy_from_user(&newset, unewset, sizeof(newset)))
- return -EFAULT;
- sigdelsetmask(&newset, sigmask(SIGKILL)|sigmask(SIGSTOP));
-
- spin_lock_irq(&current->sighand->siglock);
- current->saved_sigmask = current->blocked;
- current->blocked = newset;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- set_thread_flag(TIF_RESTORE_SIGMASK);
- return -ERESTARTNOHAND;
-}
-
asmlinkage int
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
unsigned long r2, unsigned long r3, unsigned long r4,
@@ -218,7 +187,7 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
return (void __user *)((sp - frame_size) & -8ul);
}
-static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs *regs)
{
struct rt_sigframe __user *frame;
@@ -275,22 +244,34 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
current->comm, current->pid, frame, regs->pc);
#endif
- return;
+ return 0;
give_sigsegv:
force_sigsegv(sig, current);
+ return -EFAULT;
+}
+
+static int prev_insn(struct pt_regs *regs)
+{
+ u16 inst;
+ if (get_user(&inst, (u16 __user *)(regs->bpc - 2)))
+ return -EFAULT;
+ if ((inst & 0xfff0) == 0x10f0) /* trap ? */
+ regs->bpc -= 2;
+ else
+ regs->bpc -= 4;
+ regs->syscall_nr = -1;
+ return 0;
}
/*
* OK, we're invoking a handler
*/
-static void
+static int
handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *oldset, struct pt_regs *regs)
{
- unsigned short inst;
-
/* Are we from a system call? */
if (regs->syscall_nr >= 0) {
/* If so, check system call restarting.. */
@@ -308,16 +289,14 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
/* fallthrough */
case -ERESTARTNOINTR:
regs->r0 = regs->orig_r0;
- inst = *(unsigned short *)(regs->bpc - 2);
- if ((inst & 0xfff0) == 0x10f0) /* trap ? */
- regs->bpc -= 2;
- else
- regs->bpc -= 4;
+ if (prev_insn(regs) < 0)
+ return -EFAULT;
}
}
/* Set up the stack frame */
- setup_rt_frame(sig, ka, info, oldset, regs);
+ if (setup_rt_frame(sig, ka, info, oldset, regs))
+ return -EFAULT;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -325,6 +304,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
sigaddset(&current->blocked,sig);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+ return 0;
}
/*
@@ -332,12 +312,12 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
* want to handle. Thus you cannot kill init even with a SIGKILL even by
* mistake.
*/
-int do_signal(struct pt_regs *regs, sigset_t *oldset)
+static void do_signal(struct pt_regs *regs)
{
siginfo_t info;
int signr;
struct k_sigaction ka;
- unsigned short inst;
+ sigset_t *oldset;
/*
* We want the common case to go fast, which
@@ -346,12 +326,14 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
* if so.
*/
if (!user_mode(regs))
- return 1;
+ return;
if (try_to_freeze())
goto no_signal;
- if (!oldset)
+ if (test_thread_flag(TIF_RESTORE_SIGMASK))
+ oldset = &current->saved_sigmask;
+ else
oldset = &current->blocked;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
@@ -363,8 +345,10 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
*/
/* Whee! Actually deliver the signal. */
- handle_signal(signr, &ka, &info, oldset, regs);
- return 1;
+ if (handle_signal(signr, &ka, &info, oldset, regs) == 0)
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+
+ return;
}
no_signal:
@@ -375,31 +359,24 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
regs->r0 == -ERESTARTSYS ||
regs->r0 == -ERESTARTNOINTR) {
regs->r0 = regs->orig_r0;
- inst = *(unsigned short *)(regs->bpc - 2);
- if ((inst & 0xfff0) == 0x10f0) /* trap ? */
- regs->bpc -= 2;
- else
- regs->bpc -= 4;
- }
- if (regs->r0 == -ERESTART_RESTARTBLOCK){
+ prev_insn(regs);
+ } else if (regs->r0 == -ERESTART_RESTARTBLOCK){
regs->r0 = regs->orig_r0;
regs->r7 = __NR_restart_syscall;
- inst = *(unsigned short *)(regs->bpc - 2);
- if ((inst & 0xfff0) == 0x10f0) /* trap ? */
- regs->bpc -= 2;
- else
- regs->bpc -= 4;
+ prev_insn(regs);
}
}
- return 0;
+ if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+ sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+ }
}
/*
* notification of userspace execution resumption
* - triggered by current->work.notify_resume
*/
-void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
- __u32 thread_info_flags)
+void do_notify_resume(struct pt_regs *regs, __u32 thread_info_flags)
{
/* Pending single-step? */
if (thread_info_flags & _TIF_SINGLESTEP)
@@ -407,7 +384,7 @@ void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
/* deal with pending signal delivery */
if (thread_info_flags & _TIF_SIGPENDING)
- do_signal(regs,oldset);
+ do_signal(regs);
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 444b9f918fdf..7c2a2f7f8dc1 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -8,7 +8,6 @@ mainmenu "Linux Kernel Configuration"
config MN10300
def_bool y
select HAVE_OPROFILE
- select HAVE_ARCH_TRACEHOOK
config AM33
def_bool y
diff --git a/arch/mn10300/Kconfig.debug b/arch/mn10300/Kconfig.debug
index ff80e86b9bd2..ce83c74b3fd7 100644
--- a/arch/mn10300/Kconfig.debug
+++ b/arch/mn10300/Kconfig.debug
@@ -101,7 +101,7 @@ config GDBSTUB_DEBUG_BREAKPOINT
choice
prompt "GDB stub port"
- default GDBSTUB_TTYSM0
+ default GDBSTUB_ON_TTYSM0
depends on GDBSTUB
help
Select the serial port used for GDB-stub.
diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h
index f49ac49e09ad..3f50e9661076 100644
--- a/arch/mn10300/include/asm/bitops.h
+++ b/arch/mn10300/include/asm/bitops.h
@@ -229,9 +229,9 @@ int ffs(int x)
#include <asm-generic/bitops/hweight.h>
#define ext2_set_bit_atomic(lock, nr, addr) \
- test_and_set_bit((nr) ^ 0x18, (addr))
+ test_and_set_bit((nr), (addr))
#define ext2_clear_bit_atomic(lock, nr, addr) \
- test_and_clear_bit((nr) ^ 0x18, (addr))
+ test_and_clear_bit((nr), (addr))
#include <asm-generic/bitops/ext2-non-atomic.h>
#include <asm-generic/bitops/minix-le.h>
diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h
index 7e891fce2370..1865d72a86ff 100644
--- a/arch/mn10300/include/asm/signal.h
+++ b/arch/mn10300/include/asm/signal.h
@@ -78,7 +78,7 @@ typedef unsigned long sigset_t;
/* These should not be considered constants from userland. */
#define SIGRTMIN 32
-#define SIGRTMAX (_NSIG-1)
+#define SIGRTMAX _NSIG
/*
* SA_FLAGS values:
diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index 717db14c2cc3..d4de05ab7864 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -65,10 +65,10 @@ asmlinkage long sys_sigaction(int sig,
old_sigset_t mask;
if (verify_area(VERIFY_READ, act, sizeof(*act)) ||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
+ __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) ||
+ __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+ __get_user(mask, &act->sa_mask))
return -EFAULT;
- __get_user(new_ka.sa.sa_flags, &act->sa_flags);
- __get_user(mask, &act->sa_mask);
siginitset(&new_ka.sa.sa_mask, mask);
}
@@ -77,10 +77,10 @@ asmlinkage long sys_sigaction(int sig,
if (!ret && oact) {
if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) ||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
+ __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) ||
+ __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+ __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
return -EFAULT;
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
}
return ret;
@@ -102,6 +102,9 @@ static int restore_sigcontext(struct pt_regs *regs,
{
unsigned int err = 0;
+ /* Always make any pending restarted system calls return -EINTR */
+ current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
if (is_using_fpu(current))
fpu_kill_state(current);
@@ -330,8 +333,6 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
regs->d0 = sig;
regs->d1 = (unsigned long) &frame->sc;
- set_fs(USER_DS);
-
/* the tracer may want to single-step inside the handler */
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
@@ -345,7 +346,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
return 0;
give_sigsegv:
- force_sig(SIGSEGV, current);
+ force_sigsegv(sig, current);
return -EFAULT;
}
@@ -413,8 +414,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->d0 = sig;
regs->d1 = (long) &frame->info;
- set_fs(USER_DS);
-
/* the tracer may want to single-step inside the handler */
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
@@ -428,10 +427,16 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
return 0;
give_sigsegv:
- force_sig(SIGSEGV, current);
+ force_sigsegv(sig, current);
return -EFAULT;
}
+static inline void stepback(struct pt_regs *regs)
+{
+ regs->pc -= 2;
+ regs->orig_d0 = -1;
+}
+
/*
* handle the actual delivery of a signal to userspace
*/
@@ -459,7 +464,7 @@ static int handle_signal(int sig,
/* fallthrough */
case -ERESTARTNOINTR:
regs->d0 = regs->orig_d0;
- regs->pc -= 2;
+ stepback(regs);
}
}
@@ -527,12 +532,12 @@ static void do_signal(struct pt_regs *regs)
case -ERESTARTSYS:
case -ERESTARTNOINTR:
regs->d0 = regs->orig_d0;
- regs->pc -= 2;
+ stepback(regs);
break;
case -ERESTART_RESTARTBLOCK:
regs->d0 = __NR_restart_syscall;
- regs->pc -= 2;
+ stepback(regs);
break;
}
}
diff --git a/arch/mn10300/mm/Makefile b/arch/mn10300/mm/Makefile
index 28b9d983db0c..1557277fbc5c 100644
--- a/arch/mn10300/mm/Makefile
+++ b/arch/mn10300/mm/Makefile
@@ -2,13 +2,11 @@
# Makefile for the MN10300-specific memory management code
#
+cacheflush-y := cache.o cache-mn10300.o
+cacheflush-$(CONFIG_MN10300_CACHE_WBACK) += cache-flush-mn10300.o
+
+cacheflush-$(CONFIG_MN10300_CACHE_DISABLED) := cache-disabled.o
+
obj-y := \
init.o fault.o pgtable.o extable.o tlb-mn10300.o mmu-context.o \
- misalignment.o dma-alloc.o
-
-ifneq ($(CONFIG_MN10300_CACHE_DISABLED),y)
-obj-y += cache.o cache-mn10300.o
-ifeq ($(CONFIG_MN10300_CACHE_WBACK),y)
-obj-y += cache-flush-mn10300.o
-endif
-endif
+ misalignment.o dma-alloc.o $(cacheflush-y)
diff --git a/arch/mn10300/mm/cache-disabled.c b/arch/mn10300/mm/cache-disabled.c
new file mode 100644
index 000000000000..f669ea42aba6
--- /dev/null
+++ b/arch/mn10300/mm/cache-disabled.c
@@ -0,0 +1,21 @@
+/* Handle the cache being disabled
+ *
+ * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#include <linux/mm.h>
+
+/*
+ * allow userspace to flush the instruction cache
+ */
+asmlinkage long sys_cacheflush(unsigned long start, unsigned long end)
+{
+ if (end < start)
+ return -EINVAL;
+ return 0;
+}
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index 7109f5b1baa8..2300426e531a 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -138,6 +138,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
ti->local_flags &= ~_TLF_RESTORE_SIGMASK;
sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
}
+ regs->trap = 0;
return 0; /* no signals delivered */
}
@@ -164,6 +165,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
ret = handle_rt_signal64(signr, &ka, &info, oldset, regs);
}
+ regs->trap = 0;
if (ret) {
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked, &current->blocked,
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 266610119f66..b96a3a010c26 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -511,6 +511,7 @@ static long restore_user_regs(struct pt_regs *regs,
if (!sig)
save_r2 = (unsigned int)regs->gpr[2];
err = restore_general_regs(regs, sr);
+ regs->trap = 0;
err |= __get_user(msr, &sr->mc_gregs[PT_MSR]);
if (!sig)
regs->gpr[2] = (unsigned long) save_r2;
@@ -884,7 +885,6 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
regs->nip = (unsigned long) ka->sa.sa_handler;
/* enter the signal handler in big-endian mode */
regs->msr &= ~MSR_LE;
- regs->trap = 0;
return 1;
badframe:
@@ -1228,7 +1228,6 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
regs->nip = (unsigned long) ka->sa.sa_handler;
/* enter the signal handler in big-endian mode */
regs->msr &= ~MSR_LE;
- regs->trap = 0;
return 1;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 2fe6fc64b614..27c4a4584f80 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -178,7 +178,7 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
err |= __get_user(regs->xer, &sc->gp_regs[PT_XER]);
err |= __get_user(regs->ccr, &sc->gp_regs[PT_CCR]);
/* skip SOFTE */
- err |= __get_user(regs->trap, &sc->gp_regs[PT_TRAP]);
+ regs->trap = 0;
err |= __get_user(regs->dar, &sc->gp_regs[PT_DAR]);
err |= __get_user(regs->dsisr, &sc->gp_regs[PT_DSISR]);
err |= __get_user(regs->result, &sc->gp_regs[PT_RESULT]);
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 357ced3c33ff..6318e622cfb0 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1038,6 +1038,7 @@ static int __hw_perf_event_init(struct perf_event *event)
if (atomic_read(&nmi_active) < 0)
return -ENODEV;
+ pmap = NULL;
if (attr->type == PERF_TYPE_HARDWARE) {
if (attr->config >= sparc_pmu->max_events)
return -EINVAL;
@@ -1046,9 +1047,18 @@ static int __hw_perf_event_init(struct perf_event *event)
pmap = sparc_map_cache_event(attr->config);
if (IS_ERR(pmap))
return PTR_ERR(pmap);
- } else
+ } else if (attr->type != PERF_TYPE_RAW)
return -EOPNOTSUPP;
+ if (pmap) {
+ hwc->event_base = perf_event_encode(pmap);
+ } else {
+ /* User gives us "(encoding << 16) | pic_mask" for
+ * PERF_TYPE_RAW events.
+ */
+ hwc->event_base = attr->config;
+ }
+
/* We save the enable bits in the config_base. */
hwc->config_base = sparc_pmu->irq_bit;
if (!attr->exclude_user)
@@ -1058,8 +1068,6 @@ static int __hw_perf_event_init(struct perf_event *event)
if (!attr->exclude_hv)
hwc->config_base |= sparc_pmu->hv_bit;
- hwc->event_base = perf_event_encode(pmap);
-
n = 0;
if (event->group_leader != event) {
n = collect_events(event->group_leader,
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index ea22cd373c64..75fad425e249 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -453,8 +453,66 @@ static int save_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
return err;
}
-static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset)
+/* The I-cache flush instruction only works in the primary ASI, which
+ * right now is the nucleus, aka. kernel space.
+ *
+ * Therefore we have to kick the instructions out using the kernel
+ * side linear mapping of the physical address backing the user
+ * instructions.
+ */
+static void flush_signal_insns(unsigned long address)
+{
+ unsigned long pstate, paddr;
+ pte_t *ptep, pte;
+ pgd_t *pgdp;
+ pud_t *pudp;
+ pmd_t *pmdp;
+
+ /* Commit all stores of the instructions we are about to flush. */
+ wmb();
+
+ /* Disable cross-call reception. In this way even a very wide
+ * munmap() on another cpu can't tear down the page table
+ * hierarchy from underneath us, since that can't complete
+ * until the IPI tlb flush returns.
+ */
+
+ __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
+ __asm__ __volatile__("wrpr %0, %1, %%pstate"
+ : : "r" (pstate), "i" (PSTATE_IE));
+
+ pgdp = pgd_offset(current->mm, address);
+ if (pgd_none(*pgdp))
+ goto out_irqs_on;
+ pudp = pud_offset(pgdp, address);
+ if (pud_none(*pudp))
+ goto out_irqs_on;
+ pmdp = pmd_offset(pudp, address);
+ if (pmd_none(*pmdp))
+ goto out_irqs_on;
+
+ ptep = pte_offset_map(pmdp, address);
+ pte = *ptep;
+ if (!pte_present(pte))
+ goto out_unmap;
+
+ paddr = (unsigned long) page_address(pte_page(pte));
+
+ __asm__ __volatile__("flush %0 + %1"
+ : /* no outputs */
+ : "r" (paddr),
+ "r" (address & (PAGE_SIZE - 1))
+ : "memory");
+
+out_unmap:
+ pte_unmap(ptep);
+out_irqs_on:
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
+
+}
+
+static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset)
{
struct signal_frame32 __user *sf;
int sigframe_size;
@@ -547,13 +605,7 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (ka->ka_restorer) {
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
} else {
- /* Flush instruction space. */
unsigned long address = ((unsigned long)&(sf->insns[0]));
- pgd_t *pgdp = pgd_offset(current->mm, address);
- pud_t *pudp = pud_offset(pgdp, address);
- pmd_t *pmdp = pmd_offset(pudp, address);
- pte_t *ptep;
- pte_t pte;
regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
@@ -562,34 +614,22 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (err)
goto sigsegv;
- preempt_disable();
- ptep = pte_offset_map(pmdp, address);
- pte = *ptep;
- if (pte_present(pte)) {
- unsigned long page = (unsigned long)
- page_address(pte_page(pte));
-
- wmb();
- __asm__ __volatile__("flush %0 + %1"
- : /* no outputs */
- : "r" (page),
- "r" (address & (PAGE_SIZE - 1))
- : "memory");
- }
- pte_unmap(ptep);
- preempt_enable();
+ flush_signal_insns(address);
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
- unsigned long signr, sigset_t *oldset,
- siginfo_t *info)
+static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+ unsigned long signr, sigset_t *oldset,
+ siginfo_t *info)
{
struct rt_signal_frame32 __user *sf;
int sigframe_size;
@@ -687,12 +727,7 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (ka->ka_restorer)
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
else {
- /* Flush instruction space. */
unsigned long address = ((unsigned long)&(sf->insns[0]));
- pgd_t *pgdp = pgd_offset(current->mm, address);
- pud_t *pudp = pud_offset(pgdp, address);
- pmd_t *pmdp = pmd_offset(pudp, address);
- pte_t *ptep;
regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
@@ -704,38 +739,32 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (err)
goto sigsegv;
- preempt_disable();
- ptep = pte_offset_map(pmdp, address);
- if (pte_present(*ptep)) {
- unsigned long page = (unsigned long)
- page_address(pte_page(*ptep));
-
- wmb();
- __asm__ __volatile__("flush %0 + %1"
- : /* no outputs */
- : "r" (page),
- "r" (address & (PAGE_SIZE - 1))
- : "memory");
- }
- pte_unmap(ptep);
- preempt_enable();
+ flush_signal_insns(address);
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signr, current);
+ return -EFAULT;
}
-static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
- siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka,
+ siginfo_t *info,
+ sigset_t *oldset, struct pt_regs *regs)
{
+ int err;
+
if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame32(ka, regs, signr, oldset, info);
+ err = setup_rt_frame32(ka, regs, signr, oldset, info);
else
- setup_frame32(ka, regs, signr, oldset);
+ err = setup_frame32(ka, regs, signr, oldset);
+
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -743,6 +772,10 @@ static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
sigaddset(&current->blocked,signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs,
@@ -789,16 +822,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
if (signr > 0) {
if (restart_syscall)
syscall_restart32(orig_i0, regs, &ka.sa);
- handle_signal32(signr, &ka, &info, oldset, regs);
-
- /* A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal32(signr, &ka, &info, oldset, regs) == 0) {
+ /* A signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TS_RESTORE_SIGMASK flag.
+ */
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+ }
return;
}
if (restart_syscall &&
@@ -809,12 +840,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
regs->u_regs[UREG_I0] = orig_i0;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 9882df92ba0a..5e5c5fd03783 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -315,8 +315,8 @@ save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
return err;
}
-static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset)
+static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset)
{
struct signal_frame __user *sf;
int sigframe_size, err;
@@ -384,16 +384,19 @@ static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
/* Flush instruction space. */
flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
}
- return;
+ return 0;
sigill_and_return:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset, siginfo_t *info)
+static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset, siginfo_t *info)
{
struct rt_signal_frame __user *sf;
int sigframe_size;
@@ -466,22 +469,30 @@ static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
/* Flush instruction space. */
flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static inline void
+static inline int
handle_signal(unsigned long signr, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
{
+ int err;
+
if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame(ka, regs, signr, oldset, info);
+ err = setup_rt_frame(ka, regs, signr, oldset, info);
else
- setup_frame(ka, regs, signr, oldset);
+ err = setup_frame(ka, regs, signr, oldset);
+
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -489,6 +500,10 @@ handle_signal(unsigned long signr, struct k_sigaction *ka,
sigaddset(&current->blocked, signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -546,17 +561,15 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
if (signr > 0) {
if (restart_syscall)
syscall_restart(orig_i0, regs, &ka.sa);
- handle_signal(signr, &ka, &info, oldset, regs);
-
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+ /* a signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TIF_RESTORE_SIGMASK flag.
+ */
+ if (test_thread_flag(TIF_RESTORE_SIGMASK))
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+ }
return;
}
if (restart_syscall &&
@@ -567,12 +580,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
regs->u_regs[UREG_I0] = orig_i0;
regs->pc -= 4;
regs->npc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->pc -= 4;
regs->npc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* if there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 9fa48c30037e..006fe4515886 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -409,7 +409,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *
return (void __user *) sp;
}
-static inline void
+static inline int
setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
int signo, sigset_t *oldset, siginfo_t *info)
{
@@ -483,26 +483,37 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
}
/* 4. return to kernel instructions */
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static inline void handle_signal(unsigned long signr, struct k_sigaction *ka,
- siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal(unsigned long signr, struct k_sigaction *ka,
+ siginfo_t *info,
+ sigset_t *oldset, struct pt_regs *regs)
{
- setup_rt_frame(ka, regs, signr, oldset,
- (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+ int err;
+
+ err = setup_rt_frame(ka, regs, signr, oldset,
+ (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
if (!(ka->sa.sa_flags & SA_NOMASK))
sigaddset(&current->blocked,signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -571,16 +582,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
if (signr > 0) {
if (restart_syscall)
syscall_restart(orig_i0, regs, &ka.sa);
- handle_signal(signr, &ka, &info, oldset, regs);
-
- /* A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+ /* A signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TS_RESTORE_SIGMASK flag.
+ */
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+ }
return;
}
if (restart_syscall &&
@@ -591,12 +600,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
regs->u_regs[UREG_I0] = orig_i0;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S
index 84f296ca9e63..8f58bdff20d7 100644
--- a/arch/tile/kernel/intvec_32.S
+++ b/arch/tile/kernel/intvec_32.S
@@ -1506,13 +1506,6 @@ handle_ill:
}
STD_ENDPROC(handle_ill)
- .pushsection .rodata, "a"
- .align 8
-bpt_code:
- bpt
- ENDPROC(bpt_code)
- .popsection
-
/* Various stub interrupt handlers and syscall handlers */
STD_ENTRY_LOCAL(_kernel_double_fault)
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index cd145eda3579..49b5e1eb3262 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -62,7 +62,7 @@ static long execve1(const char *file,
return error;
}
-long um_execve(const char *file, char __user *__user *argv, char __user *__user *env)
+long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
{
long err;
@@ -72,8 +72,8 @@ long um_execve(const char *file, char __user *__user *argv, char __user *__user
return err;
}
-long sys_execve(const char __user *file, char __user *__user *argv,
- char __user *__user *env)
+long sys_execve(const char __user *file, const char __user *const __user *argv,
+ const char __user *const __user *env)
{
long error;
char *filename;
diff --git a/arch/um/kernel/internal.h b/arch/um/kernel/internal.h
index 1303a105fe91..5bf97db24a04 100644
--- a/arch/um/kernel/internal.h
+++ b/arch/um/kernel/internal.h
@@ -1 +1 @@
-extern long um_execve(const char *file, char __user *__user *argv, char __user *__user *env);
+extern long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env);
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index 5ddb246626db..f958cb876ee3 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -60,8 +60,8 @@ int kernel_execve(const char *filename,
fs = get_fs();
set_fs(KERNEL_DS);
- ret = um_execve(filename, (char __user *__user *)argv,
- (char __user *__user *) envp);
+ ret = um_execve(filename, (const char __user *const __user *)argv,
+ (const char __user *const __user *) envp);
set_fs(fs);
return ret;
diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c
index 030f4b93e255..5df2869c874b 100644
--- a/arch/x86/boot/early_serial_console.c
+++ b/arch/x86/boot/early_serial_console.c
@@ -58,7 +58,19 @@ static void parse_earlyprintk(void)
if (arg[pos] == ',')
pos++;
- if (!strncmp(arg, "ttyS", 4)) {
+ /*
+ * make sure we have
+ * "serial,0x3f8,115200"
+ * "serial,ttyS0,115200"
+ * "ttyS0,115200"
+ */
+ if (pos == 7 && !strncmp(arg + pos, "0x", 2)) {
+ port = simple_strtoull(arg + pos, &e, 16);
+ if (port == 0 || arg + pos == e)
+ port = DEFAULT_SERIAL_PORT;
+ else
+ pos = e - arg;
+ } else if (!strncmp(arg + pos, "ttyS", 4)) {
static const int bases[] = { 0x3f8, 0x2f8 };
int idx = 0;
diff --git a/arch/x86/include/asm/amd_iommu_proto.h b/arch/x86/include/asm/amd_iommu_proto.h
index d2544f1d705d..cb030374b90a 100644
--- a/arch/x86/include/asm/amd_iommu_proto.h
+++ b/arch/x86/include/asm/amd_iommu_proto.h
@@ -38,4 +38,10 @@ static inline void amd_iommu_stats_init(void) { }
#endif /* !CONFIG_AMD_IOMMU_STATS */
+static inline bool is_rd890_iommu(struct pci_dev *pdev)
+{
+ return (pdev->vendor == PCI_VENDOR_ID_ATI) &&
+ (pdev->device == PCI_DEVICE_ID_RD890_IOMMU);
+}
+
#endif /* _ASM_X86_AMD_IOMMU_PROTO_H */
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index 7014e88bc779..08616180deaf 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -368,6 +368,9 @@ struct amd_iommu {
/* capabilities of that IOMMU read from ACPI */
u32 cap;
+ /* flags read from acpi table */
+ u8 acpi_flags;
+
/*
* Capability pointer. There could be more than one IOMMU per PCI
* device function if there are more than one AMD IOMMU capability
@@ -411,6 +414,15 @@ struct amd_iommu {
/* default dma_ops domain for that IOMMU */
struct dma_ops_domain *default_dom;
+
+ /*
+ * This array is required to work around a potential BIOS bug.
+ * The BIOS may miss to restore parts of the PCI configuration
+ * space when the system resumes from S3. The result is that the
+ * IOMMU does not execute commands anymore which leads to system
+ * failure.
+ */
+ u32 cache_cfg[4];
};
/*
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 545776efeb16..bafd80defa43 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -309,7 +309,7 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
static __always_inline int constant_test_bit(unsigned int nr, const volatile unsigned long *addr)
{
return ((1UL << (nr % BITS_PER_LONG)) &
- (((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0;
+ (addr[nr / BITS_PER_LONG])) != 0;
}
static inline int variable_test_bit(int nr, volatile const unsigned long *addr)
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index c6fbb7b430d1..3f76523589af 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -168,6 +168,7 @@
#define X86_FEATURE_XSAVEOPT (7*32+ 4) /* Optimized Xsave */
#define X86_FEATURE_PLN (7*32+ 5) /* Intel Power Limit Notification */
#define X86_FEATURE_PTS (7*32+ 6) /* Intel Package Thermal Status */
+#define X86_FEATURE_DTS (7*32+ 7) /* Digital Thermal Sensor */
/* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */
diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
index 528a11e8d3e3..824ca07860d0 100644
--- a/arch/x86/include/asm/hw_breakpoint.h
+++ b/arch/x86/include/asm/hw_breakpoint.h
@@ -20,7 +20,7 @@ struct arch_hw_breakpoint {
#include <linux/list.h>
/* Available HW breakpoint length encodings */
-#define X86_BREAKPOINT_LEN_X 0x00
+#define X86_BREAKPOINT_LEN_X 0x40
#define X86_BREAKPOINT_LEN_1 0x40
#define X86_BREAKPOINT_LEN_2 0x44
#define X86_BREAKPOINT_LEN_4 0x4c
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 0925676266bd..fedf32a8c3ec 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -11,6 +11,8 @@ ifdef CONFIG_FUNCTION_TRACER
CFLAGS_REMOVE_tsc.o = -pg
CFLAGS_REMOVE_rtc.o = -pg
CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
+CFLAGS_REMOVE_pvclock.o = -pg
+CFLAGS_REMOVE_kvmclock.o = -pg
CFLAGS_REMOVE_ftrace.o = -pg
CFLAGS_REMOVE_early_printk.o = -pg
endif
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index fa044e1e30a2..679b6450382b 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1953,6 +1953,7 @@ static void __unmap_single(struct dma_ops_domain *dma_dom,
size_t size,
int dir)
{
+ dma_addr_t flush_addr;
dma_addr_t i, start;
unsigned int pages;
@@ -1960,6 +1961,7 @@ static void __unmap_single(struct dma_ops_domain *dma_dom,
(dma_addr + size > dma_dom->aperture_size))
return;
+ flush_addr = dma_addr;
pages = iommu_num_pages(dma_addr, size, PAGE_SIZE);
dma_addr &= PAGE_MASK;
start = dma_addr;
@@ -1974,7 +1976,7 @@ static void __unmap_single(struct dma_ops_domain *dma_dom,
dma_ops_free_addresses(dma_dom, dma_addr, pages);
if (amd_iommu_unmap_flush || dma_dom->need_flush) {
- iommu_flush_pages(&dma_dom->domain, dma_addr, size);
+ iommu_flush_pages(&dma_dom->domain, flush_addr, size);
dma_dom->need_flush = false;
}
}
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 3cc63e2b8dd4..5a170cbbbed8 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -632,6 +632,13 @@ static void __init init_iommu_from_pci(struct amd_iommu *iommu)
iommu->last_device = calc_devid(MMIO_GET_BUS(range),
MMIO_GET_LD(range));
iommu->evt_msi_num = MMIO_MSI_NUM(misc);
+
+ if (is_rd890_iommu(iommu->dev)) {
+ pci_read_config_dword(iommu->dev, 0xf0, &iommu->cache_cfg[0]);
+ pci_read_config_dword(iommu->dev, 0xf4, &iommu->cache_cfg[1]);
+ pci_read_config_dword(iommu->dev, 0xf8, &iommu->cache_cfg[2]);
+ pci_read_config_dword(iommu->dev, 0xfc, &iommu->cache_cfg[3]);
+ }
}
/*
@@ -649,29 +656,9 @@ static void __init init_iommu_from_acpi(struct amd_iommu *iommu,
struct ivhd_entry *e;
/*
- * First set the recommended feature enable bits from ACPI
- * into the IOMMU control registers
+ * First save the recommended feature enable bits from ACPI
*/
- h->flags & IVHD_FLAG_HT_TUN_EN_MASK ?
- iommu_feature_enable(iommu, CONTROL_HT_TUN_EN) :
- iommu_feature_disable(iommu, CONTROL_HT_TUN_EN);
-
- h->flags & IVHD_FLAG_PASSPW_EN_MASK ?
- iommu_feature_enable(iommu, CONTROL_PASSPW_EN) :
- iommu_feature_disable(iommu, CONTROL_PASSPW_EN);
-
- h->flags & IVHD_FLAG_RESPASSPW_EN_MASK ?
- iommu_feature_enable(iommu, CONTROL_RESPASSPW_EN) :
- iommu_feature_disable(iommu, CONTROL_RESPASSPW_EN);
-
- h->flags & IVHD_FLAG_ISOC_EN_MASK ?
- iommu_feature_enable(iommu, CONTROL_ISOC_EN) :
- iommu_feature_disable(iommu, CONTROL_ISOC_EN);
-
- /*
- * make IOMMU memory accesses cache coherent
- */
- iommu_feature_enable(iommu, CONTROL_COHERENT_EN);
+ iommu->acpi_flags = h->flags;
/*
* Done. Now parse the device entries
@@ -1116,6 +1103,40 @@ static void init_device_table(void)
}
}
+static void iommu_init_flags(struct amd_iommu *iommu)
+{
+ iommu->acpi_flags & IVHD_FLAG_HT_TUN_EN_MASK ?
+ iommu_feature_enable(iommu, CONTROL_HT_TUN_EN) :
+ iommu_feature_disable(iommu, CONTROL_HT_TUN_EN);
+
+ iommu->acpi_flags & IVHD_FLAG_PASSPW_EN_MASK ?
+ iommu_feature_enable(iommu, CONTROL_PASSPW_EN) :
+ iommu_feature_disable(iommu, CONTROL_PASSPW_EN);
+
+ iommu->acpi_flags & IVHD_FLAG_RESPASSPW_EN_MASK ?
+ iommu_feature_enable(iommu, CONTROL_RESPASSPW_EN) :
+ iommu_feature_disable(iommu, CONTROL_RESPASSPW_EN);
+
+ iommu->acpi_flags & IVHD_FLAG_ISOC_EN_MASK ?
+ iommu_feature_enable(iommu, CONTROL_ISOC_EN) :
+ iommu_feature_disable(iommu, CONTROL_ISOC_EN);
+
+ /*
+ * make IOMMU memory accesses cache coherent
+ */
+ iommu_feature_enable(iommu, CONTROL_COHERENT_EN);
+}
+
+static void iommu_apply_quirks(struct amd_iommu *iommu)
+{
+ if (is_rd890_iommu(iommu->dev)) {
+ pci_write_config_dword(iommu->dev, 0xf0, iommu->cache_cfg[0]);
+ pci_write_config_dword(iommu->dev, 0xf4, iommu->cache_cfg[1]);
+ pci_write_config_dword(iommu->dev, 0xf8, iommu->cache_cfg[2]);
+ pci_write_config_dword(iommu->dev, 0xfc, iommu->cache_cfg[3]);
+ }
+}
+
/*
* This function finally enables all IOMMUs found in the system after
* they have been initialized
@@ -1126,6 +1147,8 @@ static void enable_iommus(void)
for_each_iommu(iommu) {
iommu_disable(iommu);
+ iommu_apply_quirks(iommu);
+ iommu_init_flags(iommu);
iommu_set_device_table(iommu);
iommu_enable_command_buffer(iommu);
iommu_enable_event_buffer(iommu);
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 3efdf2870a35..03a5b0385ad6 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -102,6 +102,7 @@ struct cpu_hw_events {
*/
struct perf_event *events[X86_PMC_IDX_MAX]; /* in counter order */
unsigned long active_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
+ unsigned long running[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
int enabled;
int n_events;
@@ -1010,6 +1011,7 @@ static int x86_pmu_start(struct perf_event *event)
x86_perf_event_set_period(event);
cpuc->events[idx] = event;
__set_bit(idx, cpuc->active_mask);
+ __set_bit(idx, cpuc->running);
x86_pmu.enable(event);
perf_event_update_userpage(event);
@@ -1141,8 +1143,16 @@ static int x86_pmu_handle_irq(struct pt_regs *regs)
cpuc = &__get_cpu_var(cpu_hw_events);
for (idx = 0; idx < x86_pmu.num_counters; idx++) {
- if (!test_bit(idx, cpuc->active_mask))
+ if (!test_bit(idx, cpuc->active_mask)) {
+ /*
+ * Though we deactivated the counter some cpus
+ * might still deliver spurious interrupts still
+ * in flight. Catch them:
+ */
+ if (__test_and_clear_bit(idx, cpuc->running))
+ handled++;
continue;
+ }
event = cpuc->events[idx];
hwc = &event->hw;
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index 34b4dad6f0b8..d49079515122 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -31,6 +31,7 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c)
const struct cpuid_bit *cb;
static const struct cpuid_bit __cpuinitconst cpuid_bits[] = {
+ { X86_FEATURE_DTS, CR_EAX, 0, 0x00000006, 0 },
{ X86_FEATURE_IDA, CR_EAX, 1, 0x00000006, 0 },
{ X86_FEATURE_ARAT, CR_EAX, 2, 0x00000006, 0 },
{ X86_FEATURE_PLN, CR_EAX, 4, 0x00000006, 0 },
diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index a474ec37c32f..ff15c9dcc25d 100644
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -206,11 +206,27 @@ int arch_check_bp_in_kernelspace(struct perf_event *bp)
int arch_bp_generic_fields(int x86_len, int x86_type,
int *gen_len, int *gen_type)
{
- /* Len */
- switch (x86_len) {
- case X86_BREAKPOINT_LEN_X:
+ /* Type */
+ switch (x86_type) {
+ case X86_BREAKPOINT_EXECUTE:
+ if (x86_len != X86_BREAKPOINT_LEN_X)
+ return -EINVAL;
+
+ *gen_type = HW_BREAKPOINT_X;
*gen_len = sizeof(long);
+ return 0;
+ case X86_BREAKPOINT_WRITE:
+ *gen_type = HW_BREAKPOINT_W;
break;
+ case X86_BREAKPOINT_RW:
+ *gen_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Len */
+ switch (x86_len) {
case X86_BREAKPOINT_LEN_1:
*gen_len = HW_BREAKPOINT_LEN_1;
break;
@@ -229,21 +245,6 @@ int arch_bp_generic_fields(int x86_len, int x86_type,
return -EINVAL;
}
- /* Type */
- switch (x86_type) {
- case X86_BREAKPOINT_EXECUTE:
- *gen_type = HW_BREAKPOINT_X;
- break;
- case X86_BREAKPOINT_WRITE:
- *gen_type = HW_BREAKPOINT_W;
- break;
- case X86_BREAKPOINT_RW:
- *gen_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
- break;
- default:
- return -EINVAL;
- }
-
return 0;
}
@@ -316,9 +317,6 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
ret = -EINVAL;
switch (info->len) {
- case X86_BREAKPOINT_LEN_X:
- align = sizeof(long) -1;
- break;
case X86_BREAKPOINT_LEN_1:
align = 0;
break;
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 9257510b4836..9d5f55848455 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -324,9 +324,8 @@ static void lguest_load_gdt(const struct desc_ptr *desc)
}
/*
- * For a single GDT entry which changes, we do the lazy thing: alter our GDT,
- * then tell the Host to reload the entire thing. This operation is so rare
- * that this naive implementation is reasonable.
+ * For a single GDT entry which changes, we simply change our copy and
+ * then tell the host about it.
*/
static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
const void *desc, int type)
@@ -338,9 +337,13 @@ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
}
/*
- * OK, I lied. There are three "thread local storage" GDT entries which change
+ * There are three "thread local storage" GDT entries which change
* on every context switch (these three entries are how glibc implements
- * __thread variables). So we have a hypercall specifically for this case.
+ * __thread variables). As an optimization, we have a hypercall
+ * specifically for this case.
+ *
+ * Wouldn't it be nicer to have a general LOAD_GDT_ENTRIES hypercall
+ * which took a range of entries?
*/
static void lguest_load_tls(struct thread_struct *t, unsigned int cpu)
{
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index cfe4faabb0f6..009b819f48d0 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -671,7 +671,9 @@ static int __init ppro_init(char **cpu_type)
case 14:
*cpu_type = "i386/core";
break;
- case 15: case 23:
+ case 0x0f:
+ case 0x16:
+ case 0x17:
*cpu_type = "i386/core_2";
break;
case 0x1a: