aboutsummaryrefslogtreecommitdiff
path: root/arch/tile/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/tile/kernel')
-rw-r--r--arch/tile/kernel/compat_signal.c29
-rw-r--r--arch/tile/kernel/hardwall.c6
-rw-r--r--arch/tile/kernel/mcount_64.S18
-rw-r--r--arch/tile/kernel/module.c2
-rw-r--r--arch/tile/kernel/signal.c54
-rw-r--r--arch/tile/kernel/smp.c1
-rw-r--r--arch/tile/kernel/time.c13
-rw-r--r--arch/tile/kernel/vdso.c15
-rw-r--r--arch/tile/kernel/vdso/vgettimeofday.c7
9 files changed, 54 insertions, 91 deletions
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index 19c04b5ce408..8c5abf2e4794 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -190,18 +190,18 @@ static inline void __user *compat_get_sigframe(struct k_sigaction *ka,
return (void __user *) sp;
}
-int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *set, struct pt_regs *regs)
+int compat_setup_rt_frame(struct ksignal *ksig, sigset_t *set,
+ struct pt_regs *regs)
{
unsigned long restorer;
struct compat_rt_sigframe __user *frame;
- int err = 0;
+ int err = 0, sig = ksig->sig;
int usig;
- frame = compat_get_sigframe(ka, regs, sizeof(*frame));
+ frame = compat_get_sigframe(&ksig->ka, regs, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
+ goto err;
usig = current_thread_info()->exec_domain
&& current_thread_info()->exec_domain->signal_invmap
@@ -210,12 +210,12 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
: sig;
/* Always write at least the signal number for the stack backtracer. */
- if (ka->sa.sa_flags & SA_SIGINFO) {
+ if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
/* At sigreturn time, restore the callee-save registers too. */
- err |= copy_siginfo_to_user32(&frame->info, info);
+ err |= copy_siginfo_to_user32(&frame->info, &ksig->info);
regs->flags |= PT_FLAGS_RESTORE_REGS;
} else {
- err |= __put_user(info->si_signo, &frame->info.si_signo);
+ err |= __put_user(ksig->info.si_signo, &frame->info.si_signo);
}
/* Create the ucontext. */
@@ -226,11 +226,11 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
if (err)
- goto give_sigsegv;
+ goto err;
restorer = VDSO_SYM(&__vdso_rt_sigreturn);
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = ptr_to_compat_reg(ka->sa.sa_restorer);
+ if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ restorer = ptr_to_compat_reg(ksig->ka.sa.sa_restorer);
/*
* Set up registers for signal handler.
@@ -239,7 +239,7 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
* We always pass siginfo and mcontext, regardless of SA_SIGINFO,
* since some things rely on this (e.g. glibc's debug/segfault.c).
*/
- regs->pc = ptr_to_compat_reg(ka->sa.sa_handler);
+ regs->pc = ptr_to_compat_reg(ksig->ka.sa.sa_handler);
regs->ex1 = PL_ICS_EX1(USER_PL, 1); /* set crit sec in handler */
regs->sp = ptr_to_compat_reg(frame);
regs->lr = restorer;
@@ -249,7 +249,8 @@ int compat_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->flags |= PT_FLAGS_CALLER_SAVES;
return 0;
-give_sigsegv:
- signal_fault("bad setup frame", regs, frame, sig);
+err:
+ trace_unhandled_signal("bad sigreturn frame", regs,
+ (unsigned long)frame, SIGSEGV);
return -EFAULT;
}
diff --git a/arch/tile/kernel/hardwall.c b/arch/tile/kernel/hardwall.c
index 531f4c365351..aca6000bca75 100644
--- a/arch/tile/kernel/hardwall.c
+++ b/arch/tile/kernel/hardwall.c
@@ -947,15 +947,15 @@ static void hardwall_remove_proc(struct hardwall_info *info)
remove_proc_entry(buf, info->type->proc_dir);
}
-int proc_pid_hardwall(struct task_struct *task, char *buffer)
+int proc_pid_hardwall(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task)
{
int i;
int n = 0;
for (i = 0; i < HARDWALL_TYPES; ++i) {
struct hardwall_info *info = task->thread.hardwall[i].info;
if (info)
- n += sprintf(&buffer[n], "%s: %d\n",
- info->type->name, info->id);
+ seq_printf(m, "%s: %d\n", info->type->name, info->id);
}
return n;
}
diff --git a/arch/tile/kernel/mcount_64.S b/arch/tile/kernel/mcount_64.S
index 70d7bb0c4d8f..3c2b8d5e1d1a 100644
--- a/arch/tile/kernel/mcount_64.S
+++ b/arch/tile/kernel/mcount_64.S
@@ -77,15 +77,6 @@ STD_ENDPROC(__mcount)
.align 64
STD_ENTRY(ftrace_caller)
- moveli r11, hw2_last(function_trace_stop)
- { shl16insli r11, r11, hw1(function_trace_stop); move r12, lr }
- { shl16insli r11, r11, hw0(function_trace_stop); move lr, r10 }
- ld r11, r11
- beqz r11, 1f
- jrp r12
-
-1:
- { move r10, lr; move lr, r12 }
MCOUNT_SAVE_REGS
/* arg1: self return address */
@@ -119,15 +110,6 @@ STD_ENDPROC(ftrace_caller)
.align 64
STD_ENTRY(__mcount)
- moveli r11, hw2_last(function_trace_stop)
- { shl16insli r11, r11, hw1(function_trace_stop); move r12, lr }
- { shl16insli r11, r11, hw0(function_trace_stop); move lr, r10 }
- ld r11, r11
- beqz r11, 1f
- jrp r12
-
-1:
- { move r10, lr; move lr, r12 }
{
moveli r11, hw2_last(ftrace_trace_function)
moveli r13, hw2_last(ftrace_stub)
diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c
index 4918d91bc3a6..d19b13e3a59f 100644
--- a/arch/tile/kernel/module.c
+++ b/arch/tile/kernel/module.c
@@ -58,7 +58,7 @@ void *module_alloc(unsigned long size)
area->nr_pages = npages;
area->pages = pages;
- if (map_vm_area(area, prot_rwx, &pages)) {
+ if (map_vm_area(area, prot_rwx, pages)) {
vunmap(area->addr);
goto error;
}
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index d1d026f01267..7c2fecc52177 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -153,18 +153,18 @@ static inline void __user *get_sigframe(struct k_sigaction *ka,
return (void __user *) sp;
}
-static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *set, struct pt_regs *regs)
+static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
+ struct pt_regs *regs)
{
unsigned long restorer;
struct rt_sigframe __user *frame;
- int err = 0;
+ int err = 0, sig = ksig->sig;
int usig;
- frame = get_sigframe(ka, regs, sizeof(*frame));
+ frame = get_sigframe(&ksig->ka, regs, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
+ goto err;
usig = current_thread_info()->exec_domain
&& current_thread_info()->exec_domain->signal_invmap
@@ -173,12 +173,12 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
: sig;
/* Always write at least the signal number for the stack backtracer. */
- if (ka->sa.sa_flags & SA_SIGINFO) {
+ if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
/* At sigreturn time, restore the callee-save registers too. */
- err |= copy_siginfo_to_user(&frame->info, info);
+ err |= copy_siginfo_to_user(&frame->info, &ksig->info);
regs->flags |= PT_FLAGS_RESTORE_REGS;
} else {
- err |= __put_user(info->si_signo, &frame->info.si_signo);
+ err |= __put_user(ksig->info.si_signo, &frame->info.si_signo);
}
/* Create the ucontext. */
@@ -189,11 +189,11 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
if (err)
- goto give_sigsegv;
+ goto err;
restorer = VDSO_SYM(&__vdso_rt_sigreturn);
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = (unsigned long) ka->sa.sa_restorer;
+ if (ksig->ka.sa.sa_flags & SA_RESTORER)
+ restorer = (unsigned long) ksig->ka.sa.sa_restorer;
/*
* Set up registers for signal handler.
@@ -202,7 +202,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
* We always pass siginfo and mcontext, regardless of SA_SIGINFO,
* since some things rely on this (e.g. glibc's debug/segfault.c).
*/
- regs->pc = (unsigned long) ka->sa.sa_handler;
+ regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
regs->ex1 = PL_ICS_EX1(USER_PL, 1); /* set crit sec in handler */
regs->sp = (unsigned long) frame;
regs->lr = restorer;
@@ -212,8 +212,9 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->flags |= PT_FLAGS_CALLER_SAVES;
return 0;
-give_sigsegv:
- signal_fault("bad setup frame", regs, frame, sig);
+err:
+ trace_unhandled_signal("bad sigreturn frame", regs,
+ (unsigned long)frame, SIGSEGV);
return -EFAULT;
}
@@ -221,9 +222,7 @@ give_sigsegv:
* OK, we're invoking a handler
*/
-static void handle_signal(unsigned long sig, siginfo_t *info,
- struct k_sigaction *ka,
- struct pt_regs *regs)
+static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
{
sigset_t *oldset = sigmask_to_save();
int ret;
@@ -238,7 +237,7 @@ static void handle_signal(unsigned long sig, siginfo_t *info,
break;
case -ERESTARTSYS:
- if (!(ka->sa.sa_flags & SA_RESTART)) {
+ if (!(ksig->ka.sa.sa_flags & SA_RESTART)) {
regs->regs[0] = -EINTR;
break;
}
@@ -254,14 +253,12 @@ static void handle_signal(unsigned long sig, siginfo_t *info,
/* Set up the stack frame */
#ifdef CONFIG_COMPAT
if (is_compat_task())
- ret = compat_setup_rt_frame(sig, ka, info, oldset, regs);
+ ret = compat_setup_rt_frame(ksig, oldset, regs);
else
#endif
- ret = setup_rt_frame(sig, ka, info, oldset, regs);
- if (ret)
- return;
- signal_delivered(sig, info, ka, regs,
- test_thread_flag(TIF_SINGLESTEP));
+ ret = setup_rt_frame(ksig, oldset, regs);
+
+ signal_setup_done(ret, ksig, test_thread_flag(TIF_SINGLESTEP));
}
/*
@@ -271,9 +268,7 @@ static void handle_signal(unsigned long sig, siginfo_t *info,
*/
void do_signal(struct pt_regs *regs)
{
- siginfo_t info;
- int signr;
- struct k_sigaction ka;
+ struct ksignal ksig;
/*
* i386 will check if we're coming from kernel mode and bail out
@@ -282,10 +277,9 @@ void do_signal(struct pt_regs *regs)
* helpful, we can reinstate the check on "!user_mode(regs)".
*/
- signr = get_signal_to_deliver(&info, &ka, regs, NULL);
- if (signr > 0) {
+ if (get_signal(&ksig)) {
/* Whee! Actually deliver the signal. */
- handle_signal(signr, &info, &ka, regs);
+ handle_signal(&ksig, regs);
goto done;
}
diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c
index 01e8ab29f43a..19eaa62d456a 100644
--- a/arch/tile/kernel/smp.c
+++ b/arch/tile/kernel/smp.c
@@ -183,6 +183,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
preempt_enable();
}
}
+EXPORT_SYMBOL(flush_icache_range);
/* Called when smp_send_reschedule() triggers IRQ_RESCHEDULE. */
diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c
index 462dcd0c1700..d8fbc289e680 100644
--- a/arch/tile/kernel/time.c
+++ b/arch/tile/kernel/time.c
@@ -260,9 +260,8 @@ void update_vsyscall_tz(void)
void update_vsyscall(struct timekeeper *tk)
{
- struct timespec wall_time = tk_xtime(tk);
struct timespec *wtm = &tk->wall_to_monotonic;
- struct clocksource *clock = tk->clock;
+ struct clocksource *clock = tk->tkr.clock;
if (clock != &cycle_counter_cs)
return;
@@ -270,13 +269,13 @@ void update_vsyscall(struct timekeeper *tk)
/* Userspace gettimeofday will spin while this value is odd. */
++vdso_data->tb_update_count;
smp_wmb();
- vdso_data->xtime_tod_stamp = clock->cycle_last;
- vdso_data->xtime_clock_sec = wall_time.tv_sec;
- vdso_data->xtime_clock_nsec = wall_time.tv_nsec;
+ vdso_data->xtime_tod_stamp = tk->tkr.cycle_last;
+ vdso_data->xtime_clock_sec = tk->xtime_sec;
+ vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec;
vdso_data->wtom_clock_sec = wtm->tv_sec;
vdso_data->wtom_clock_nsec = wtm->tv_nsec;
- vdso_data->mult = clock->mult;
- vdso_data->shift = clock->shift;
+ vdso_data->mult = tk->tkr.mult;
+ vdso_data->shift = tk->tkr.shift;
smp_wmb();
++vdso_data->tb_update_count;
}
diff --git a/arch/tile/kernel/vdso.c b/arch/tile/kernel/vdso.c
index 1533af24106e..5bc51d7dfdcb 100644
--- a/arch/tile/kernel/vdso.c
+++ b/arch/tile/kernel/vdso.c
@@ -121,21 +121,6 @@ const char *arch_vma_name(struct vm_area_struct *vma)
return NULL;
}
-struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
-{
- return NULL;
-}
-
-int in_gate_area(struct mm_struct *mm, unsigned long address)
-{
- return 0;
-}
-
-int in_gate_area_no_mm(unsigned long address)
-{
- return 0;
-}
-
int setup_vdso_pages(void)
{
struct page **pagelist;
diff --git a/arch/tile/kernel/vdso/vgettimeofday.c b/arch/tile/kernel/vdso/vgettimeofday.c
index 51ec8e46f5f9..e933fb9fbf5c 100644
--- a/arch/tile/kernel/vdso/vgettimeofday.c
+++ b/arch/tile/kernel/vdso/vgettimeofday.c
@@ -83,10 +83,11 @@ int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
if (count & 1)
continue;
- cycles = (get_cycles() - vdso_data->xtime_tod_stamp);
- ns = (cycles * vdso_data->mult) >> vdso_data->shift;
sec = vdso_data->xtime_clock_sec;
- ns += vdso_data->xtime_clock_nsec;
+ cycles = get_cycles() - vdso_data->xtime_tod_stamp;
+ ns = (cycles * vdso_data->mult) + vdso_data->xtime_clock_nsec;
+ ns >>= vdso_data->shift;
+
if (ns >= NSEC_PER_SEC) {
ns -= NSEC_PER_SEC;
sec += 1;
Powered by cgit, Gruvboxed by Blaster4385.