aboutsummaryrefslogtreecommitdiff
path: root/arch/m32r/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m32r/kernel')
-rw-r--r--arch/m32r/kernel/init_task.c5
-rw-r--r--arch/m32r/kernel/ptrace.c5
-rw-r--r--arch/m32r/kernel/smp.c30
-rw-r--r--arch/m32r/kernel/smpboot.c4
-rw-r--r--arch/m32r/kernel/time.c74
5 files changed, 24 insertions, 94 deletions
diff --git a/arch/m32r/kernel/init_task.c b/arch/m32r/kernel/init_task.c
index fce57e5d3f9..6c42d5f8df5 100644
--- a/arch/m32r/kernel/init_task.c
+++ b/arch/m32r/kernel/init_task.c
@@ -20,9 +20,8 @@ static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
* way process stacks are handled. This is done by having a special
* "init_task" linker map entry..
*/
-union thread_union init_thread_union
- __attribute__((__section__(".data.init_task"))) =
- { INIT_THREAD_INFO(init_task) };
+union thread_union init_thread_union __init_task_data =
+ { INIT_THREAD_INFO(init_task) };
/*
* Initial task structure.
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 98b8feb12ed..98682bba0ed 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -77,7 +77,7 @@ static int ptrace_read_user(struct task_struct *tsk, unsigned long off,
struct user * dummy = NULL;
#endif
- if ((off & 3) || (off < 0) || (off > sizeof(struct user) - 3))
+ if ((off & 3) || off > sizeof(struct user) - 3)
return -EIO;
off >>= 2;
@@ -139,8 +139,7 @@ static int ptrace_write_user(struct task_struct *tsk, unsigned long off,
struct user * dummy = NULL;
#endif
- if ((off & 3) || off < 0 ||
- off > sizeof(struct user) - 3)
+ if ((off & 3) || off > sizeof(struct user) - 3)
return -EIO;
off >>= 2;
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index 929e5c9d3ad..1b7598e6f6e 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -85,7 +85,7 @@ void smp_ipi_timer_interrupt(struct pt_regs *);
void smp_local_timer_interrupt(void);
static void send_IPI_allbutself(int, int);
-static void send_IPI_mask(cpumask_t, int, int);
+static void send_IPI_mask(const struct cpumask *, int, int);
unsigned long send_IPI_mask_phys(cpumask_t, int, int);
/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
@@ -113,7 +113,7 @@ unsigned long send_IPI_mask_phys(cpumask_t, int, int);
void smp_send_reschedule(int cpu_id)
{
WARN_ON(cpu_is_offline(cpu_id));
- send_IPI_mask(cpumask_of_cpu(cpu_id), RESCHEDULE_IPI, 1);
+ send_IPI_mask(cpumask_of(cpu_id), RESCHEDULE_IPI, 1);
}
/*==========================================================================*
@@ -168,7 +168,7 @@ void smp_flush_cache_all(void)
spin_lock(&flushcache_lock);
mask=cpus_addr(cpumask);
atomic_set_mask(*mask, (atomic_t *)&flushcache_cpumask);
- send_IPI_mask(cpumask, INVALIDATE_CACHE_IPI, 0);
+ send_IPI_mask(&cpumask, INVALIDATE_CACHE_IPI, 0);
_flush_cache_copyback_all();
while (flushcache_cpumask)
mb();
@@ -264,7 +264,7 @@ void smp_flush_tlb_mm(struct mm_struct *mm)
preempt_disable();
cpu_id = smp_processor_id();
mmc = &mm->context[cpu_id];
- cpu_mask = mm->cpu_vm_mask;
+ cpu_mask = *mm_cpumask(mm);
cpu_clear(cpu_id, cpu_mask);
if (*mmc != NO_CONTEXT) {
@@ -273,7 +273,7 @@ void smp_flush_tlb_mm(struct mm_struct *mm)
if (mm == current->mm)
activate_context(mm);
else
- cpu_clear(cpu_id, mm->cpu_vm_mask);
+ cpumask_clear_cpu(cpu_id, mm_cpumask(mm));
local_irq_restore(flags);
}
if (!cpus_empty(cpu_mask))
@@ -334,7 +334,7 @@ void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
preempt_disable();
cpu_id = smp_processor_id();
mmc = &mm->context[cpu_id];
- cpu_mask = mm->cpu_vm_mask;
+ cpu_mask = *mm_cpumask(mm);
cpu_clear(cpu_id, cpu_mask);
#ifdef DEBUG_SMP
@@ -424,7 +424,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
* We have to send the IPI only to
* CPUs affected.
*/
- send_IPI_mask(cpumask, INVALIDATE_TLB_IPI, 0);
+ send_IPI_mask(&cpumask, INVALIDATE_TLB_IPI, 0);
while (!cpus_empty(flush_cpumask)) {
/* nothing. lockup detection does not belong here */
@@ -469,7 +469,7 @@ void smp_invalidate_interrupt(void)
if (flush_mm == current->active_mm)
activate_context(flush_mm);
else
- cpu_clear(cpu_id, flush_mm->cpu_vm_mask);
+ cpumask_clear_cpu(cpu_id, mm_cpumask(flush_mm));
} else {
unsigned long va = flush_va;
@@ -546,14 +546,14 @@ static void stop_this_cpu(void *dummy)
for ( ; ; );
}
-void arch_send_call_function_ipi(cpumask_t mask)
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
{
send_IPI_mask(mask, CALL_FUNCTION_IPI, 0);
}
void arch_send_call_function_single_ipi(int cpu)
{
- send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNC_SINGLE_IPI, 0);
+ send_IPI_mask(cpumask_of(cpu), CALL_FUNC_SINGLE_IPI, 0);
}
/*==========================================================================*
@@ -729,7 +729,7 @@ static void send_IPI_allbutself(int ipi_num, int try)
cpumask = cpu_online_map;
cpu_clear(smp_processor_id(), cpumask);
- send_IPI_mask(cpumask, ipi_num, try);
+ send_IPI_mask(&cpumask, ipi_num, try);
}
/*==========================================================================*
@@ -752,7 +752,7 @@ static void send_IPI_allbutself(int ipi_num, int try)
* ---------- --- --------------------------------------------------------
*
*==========================================================================*/
-static void send_IPI_mask(cpumask_t cpumask, int ipi_num, int try)
+static void send_IPI_mask(const struct cpumask *cpumask, int ipi_num, int try)
{
cpumask_t physid_mask, tmp;
int cpu_id, phys_id;
@@ -761,11 +761,11 @@ static void send_IPI_mask(cpumask_t cpumask, int ipi_num, int try)
if (num_cpus <= 1) /* NO MP */
return;
- cpus_and(tmp, cpumask, cpu_online_map);
- BUG_ON(!cpus_equal(cpumask, tmp));
+ cpumask_and(&tmp, cpumask, cpu_online_mask);
+ BUG_ON(!cpumask_equal(cpumask, &tmp));
physid_mask = CPU_MASK_NONE;
- for_each_cpu_mask(cpu_id, cpumask){
+ for_each_cpu(cpu_id, cpumask) {
if ((phys_id = cpu_to_physid(cpu_id)) != -1)
cpu_set(phys_id, physid_mask);
}
diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c
index 2547d6c4a82..e034844cfc0 100644
--- a/arch/m32r/kernel/smpboot.c
+++ b/arch/m32r/kernel/smpboot.c
@@ -178,7 +178,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
for (phys_id = 0 ; phys_id < nr_cpu ; phys_id++)
physid_set(phys_id, phys_cpu_present_map);
#ifndef CONFIG_HOTPLUG_CPU
- cpu_present_map = cpu_possible_map;
+ init_cpu_present(&cpu_possible_map);
#endif
show_mp_info(nr_cpu);
@@ -213,7 +213,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
if (!physid_isset(phys_id, phys_cpu_present_map))
continue;
- if ((max_cpus >= 0) && (max_cpus <= cpucount + 1))
+ if (max_cpus <= cpucount + 1)
continue;
do_boot_cpu(phys_id);
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index cada3ba4b99..ba61c4c7320 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -48,7 +48,7 @@ extern void smp_local_timer_interrupt(void);
static unsigned long latch;
-static unsigned long do_gettimeoffset(void)
+u32 arch_gettimeoffset(void)
{
unsigned long elapsed_time = 0; /* [us] */
@@ -93,79 +93,10 @@ static unsigned long do_gettimeoffset(void)
#error no chip configuration
#endif
- return elapsed_time;
+ return elapsed_time * 1000;
}
/*
- * This version of gettimeofday has near microsecond resolution.
- */
-void do_gettimeofday(struct timeval *tv)
-{
- unsigned long seq;
- unsigned long usec, sec;
- unsigned long max_ntp_tick = tick_usec - tickadj;
-
- do {
- seq = read_seqbegin(&xtime_lock);
-
- usec = do_gettimeoffset();
-
- /*
- * If time_adjust is negative then NTP is slowing the clock
- * so make sure not to go into next possible interval.
- * Better to lose some accuracy than have time go backwards..
- */
- if (unlikely(time_adjust < 0))
- usec = min(usec, max_ntp_tick);
-
- sec = xtime.tv_sec;
- usec += (xtime.tv_nsec / 1000);
- } while (read_seqretry(&xtime_lock, seq));
-
- while (usec >= 1000000) {
- usec -= 1000000;
- sec++;
- }
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-
-EXPORT_SYMBOL(do_gettimeofday);
-
-int do_settimeofday(struct timespec *tv)
-{
- time_t wtm_sec, sec = tv->tv_sec;
- long wtm_nsec, nsec = tv->tv_nsec;
-
- if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
- return -EINVAL;
-
- write_seqlock_irq(&xtime_lock);
- /*
- * This is revolting. We need to set "xtime" correctly. However, the
- * value in this location is the value at the most recent update of
- * wall time. Discover what correction gettimeofday() would have
- * made, and then undo it!
- */
- nsec -= do_gettimeoffset() * NSEC_PER_USEC;
-
- wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
- wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
- set_normalized_timespec(&xtime, sec, nsec);
- set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
- ntp_clear();
- write_sequnlock_irq(&xtime_lock);
- clock_was_set();
-
- return 0;
-}
-
-EXPORT_SYMBOL(do_settimeofday);
-
-/*
* In order to set the CMOS clock precisely, set_rtc_mmss has to be
* called 500 ms after the second nowtime has started, because when
* nowtime is written into the registers of the CMOS clock, it will
@@ -192,6 +123,7 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
#ifndef CONFIG_SMP
profile_tick(CPU_PROFILING);
#endif
+ /* XXX FIXME. Uh, the xtime_lock should be held here, no? */
do_timer(1);
#ifndef CONFIG_SMP
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-01 03:57:55 +0000