summaryrefslogtreecommitdiff
path: root/arch/sparc
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/kernel/setup.c4
-rw-r--r--arch/sparc/kernel/smp.c1
-rw-r--r--arch/sparc/kernel/sun4d_smp.c2
-rw-r--r--arch/sparc/kernel/sun4m_smp.c2
-rw-r--r--arch/sparc/kernel/sys_sparc.c37
-rw-r--r--arch/sparc/kernel/time.c74
6 files changed, 66 insertions, 54 deletions
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 35488d6c7457..0251cab4708b 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -348,9 +348,9 @@ void __init setup_arch(char **cmdline_p)
init_mm.context = (unsigned long) NO_CONTEXT;
init_task.thread.kregs = &fake_swapper_regs;
- smp_setup_cpu_possible_map();
-
paging_init();
+
+ smp_setup_cpu_possible_map();
}
static int __init set_preferred_console(void)
diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
index e311ade1b490..276f22881d0f 100644
--- a/arch/sparc/kernel/smp.c
+++ b/arch/sparc/kernel/smp.c
@@ -34,7 +34,6 @@
#include <asm/tlbflush.h>
#include <asm/cpudata.h>
-volatile int smp_processors_ready = 0;
int smp_num_cpus = 1;
volatile unsigned long cpu_callin_map[NR_CPUS] __initdata = {0,};
unsigned char boot_cpu_id = 0;
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index ba843f6a2832..3ff4edd32815 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -42,7 +42,7 @@ extern ctxd_t *srmmu_ctx_table_phys;
extern void calibrate_delay(void);
-extern volatile int smp_processors_ready;
+static volatile int smp_processors_ready = 0;
static int smp_highest_cpu;
extern volatile unsigned long cpu_callin_map[NR_CPUS];
extern cpuinfo_sparc cpu_data[NR_CPUS];
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 3b32096134aa..7d4a649138f6 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -39,7 +39,6 @@ extern ctxd_t *srmmu_ctx_table_phys;
extern void calibrate_delay(void);
-extern volatile int smp_processors_ready;
extern volatile unsigned long cpu_callin_map[NR_CPUS];
extern unsigned char boot_cpu_id;
@@ -217,7 +216,6 @@ void __init smp4m_smp_done(void)
}
/* Ok, they are spinning and ready to go. */
- smp_processors_ready = 1;
}
/* At each hardware IRQ, we get this called to forward IRQ reception
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
index a41c8a5c2007..896863fb208a 100644
--- a/arch/sparc/kernel/sys_sparc.c
+++ b/arch/sparc/kernel/sys_sparc.c
@@ -219,6 +219,21 @@ out:
return err;
}
+int sparc_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
+{
+ if (ARCH_SUN4C_SUN4 &&
+ (len > 0x20000000 ||
+ ((flags & MAP_FIXED) &&
+ addr < 0xe0000000 && addr + len > 0x20000000)))
+ return -EINVAL;
+
+ /* See asm-sparc/uaccess.h */
+ if (len > TASK_SIZE - PAGE_SIZE || addr + len > TASK_SIZE - PAGE_SIZE)
+ return -EINVAL;
+
+ return 0;
+}
+
/* Linux version of mmap */
static unsigned long do_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags, unsigned long fd,
@@ -233,25 +248,13 @@ static unsigned long do_mmap2(unsigned long addr, unsigned long len,
goto out;
}
- retval = -EINVAL;
len = PAGE_ALIGN(len);
- if (ARCH_SUN4C_SUN4 &&
- (len > 0x20000000 ||
- ((flags & MAP_FIXED) &&
- addr < 0xe0000000 && addr + len > 0x20000000)))
- goto out_putf;
-
- /* See asm-sparc/uaccess.h */
- if (len > TASK_SIZE - PAGE_SIZE || addr + len > TASK_SIZE - PAGE_SIZE)
- goto out_putf;
-
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
down_write(&current->mm->mmap_sem);
retval = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
up_write(&current->mm->mmap_sem);
-out_putf:
if (file)
fput(file);
out:
@@ -467,19 +470,21 @@ asmlinkage int sys_getdomainname(char __user *name, int len)
{
int nlen, err;
- if (len < 0 || len > __NEW_UTS_LEN)
+ if (len < 0)
return -EINVAL;
down_read(&uts_sem);
nlen = strlen(system_utsname.domainname) + 1;
- if (nlen < len)
- len = nlen;
+ err = -EINVAL;
+ if (nlen > len)
+ goto out;
err = -EFAULT;
- if (!copy_to_user(name, system_utsname.domainname, len))
+ if (!copy_to_user(name, system_utsname.domainname, nlen))
err = 0;
+out:
up_read(&uts_sem);
return err;
}
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 04eb1eab6e3e..845081b01267 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -225,6 +225,32 @@ static __inline__ int has_low_battery(void)
return (data1 == data2); /* Was the write blocked? */
}
+static void __init mostek_set_system_time(void)
+{
+ unsigned int year, mon, day, hour, min, sec;
+ struct mostek48t02 *mregs;
+
+ mregs = (struct mostek48t02 *)mstk48t02_regs;
+ if(!mregs) {
+ prom_printf("Something wrong, clock regs not mapped yet.\n");
+ prom_halt();
+ }
+ spin_lock_irq(&mostek_lock);
+ mregs->creg |= MSTK_CREG_READ;
+ sec = MSTK_REG_SEC(mregs);
+ min = MSTK_REG_MIN(mregs);
+ hour = MSTK_REG_HOUR(mregs);
+ day = MSTK_REG_DOM(mregs);
+ mon = MSTK_REG_MONTH(mregs);
+ year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
+ xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
+ xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
+ set_normalized_timespec(&wall_to_monotonic,
+ -xtime.tv_sec, -xtime.tv_nsec);
+ mregs->creg &= ~MSTK_CREG_READ;
+ spin_unlock_irq(&mostek_lock);
+}
+
/* Probe for the real time clock chip on Sun4 */
static __inline__ void sun4_clock_probe(void)
{
@@ -273,6 +299,7 @@ static __inline__ void sun4_clock_probe(void)
#endif
}
+#ifndef CONFIG_SUN4
static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
{
struct device_node *dp = op->node;
@@ -307,6 +334,8 @@ static int __devinit clock_probe(struct of_device *op, const struct of_device_id
if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
kick_start_clock();
+ mostek_set_system_time();
+
return 0;
}
@@ -325,56 +354,37 @@ static struct of_platform_driver clock_driver = {
/* Probe for the mostek real time clock chip. */
-static void clock_init(void)
+static int __init clock_init(void)
{
- of_register_driver(&clock_driver, &of_bus_type);
+ return of_register_driver(&clock_driver, &of_bus_type);
}
+/* Must be after subsys_initcall() so that busses are probed. Must
+ * be before device_initcall() because things like the RTC driver
+ * need to see the clock registers.
+ */
+fs_initcall(clock_init);
+#endif /* !CONFIG_SUN4 */
+
void __init sbus_time_init(void)
{
- unsigned int year, mon, day, hour, min, sec;
- struct mostek48t02 *mregs;
-
-#ifdef CONFIG_SUN4
- int temp;
- struct intersil *iregs;
-#endif
BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM);
btfixup();
if (ARCH_SUN4)
sun4_clock_probe();
- else
- clock_init();
sparc_init_timers(timer_interrupt);
#ifdef CONFIG_SUN4
if(idprom->id_machtype == (SM_SUN4 | SM_4_330)) {
-#endif
- mregs = (struct mostek48t02 *)mstk48t02_regs;
- if(!mregs) {
- prom_printf("Something wrong, clock regs not mapped yet.\n");
- prom_halt();
- }
- spin_lock_irq(&mostek_lock);
- mregs->creg |= MSTK_CREG_READ;
- sec = MSTK_REG_SEC(mregs);
- min = MSTK_REG_MIN(mregs);
- hour = MSTK_REG_HOUR(mregs);
- day = MSTK_REG_DOM(mregs);
- mon = MSTK_REG_MONTH(mregs);
- year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
- xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
- xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
- set_normalized_timespec(&wall_to_monotonic,
- -xtime.tv_sec, -xtime.tv_nsec);
- mregs->creg &= ~MSTK_CREG_READ;
- spin_unlock_irq(&mostek_lock);
-#ifdef CONFIG_SUN4
+ mostek_set_system_time();
} else if(idprom->id_machtype == (SM_SUN4 | SM_4_260) ) {
/* initialise the intersil on sun4 */
+ unsigned int year, mon, day, hour, min, sec;
+ int temp;
+ struct intersil *iregs;
iregs=intersil_clock;
if(!iregs) {
generated by cgit v1.2.3 (git 2.0.4) at 2025-12-15 10:41:44 +0000