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-rw-r--r--arch/mips/Kconfig2
-rw-r--r--arch/mips/boot/.gitignore4
-rw-r--r--arch/mips/configs/pnx8550-jbs_defconfig11
-rw-r--r--arch/mips/configs/pnx8550-v2pci_defconfig10
-rw-r--r--arch/mips/ddb5xxx/common/rtc_ds1386.c6
-rw-r--r--arch/mips/dec/time.c24
-rw-r--r--arch/mips/jmr3927/common/rtc_ds1742.c6
-rw-r--r--arch/mips/kernel/irixsig.c3
-rw-r--r--arch/mips/kernel/ptrace.c55
-rw-r--r--arch/mips/kernel/rtlx.c197
-rw-r--r--arch/mips/kernel/signal.c3
-rw-r--r--arch/mips/kernel/signal32.c13
-rw-r--r--arch/mips/kernel/vpe.c100
-rw-r--r--arch/mips/lasat/ds1603.c9
-rw-r--r--arch/mips/momentum/jaguar_atx/setup.c6
-rw-r--r--arch/mips/momentum/ocelot_3/setup.c6
-rw-r--r--arch/mips/momentum/ocelot_c/setup.c6
-rw-r--r--arch/mips/pmc-sierra/yosemite/setup.c6
-rw-r--r--arch/mips/sgi-ip22/ip22-time.c6
-rw-r--r--arch/mips/sibyte/swarm/rtc_m41t81.c7
-rw-r--r--arch/mips/sibyte/swarm/rtc_xicor1241.c6
21 files changed, 254 insertions, 232 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 0097a0d53b3..e380a8322a9 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -958,7 +958,7 @@ config SOC_PNX8550
bool
select DMA_NONCOHERENT
select HW_HAS_PCI
- select SYS_HAS_CPU_R4X00
+ select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
config SWAP_IO_SPACE
diff --git a/arch/mips/boot/.gitignore b/arch/mips/boot/.gitignore
new file mode 100644
index 00000000000..ba63401c6e1
--- /dev/null
+++ b/arch/mips/boot/.gitignore
@@ -0,0 +1,4 @@
+mkboot
+elf2ecoff
+zImage
+zImage.tmp
diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig
index 95f84d71191..555837e4c06 100644
--- a/arch/mips/configs/pnx8550-jbs_defconfig
+++ b/arch/mips/configs/pnx8550-jbs_defconfig
@@ -129,7 +129,7 @@ CONFIG_MIPS_L1_CACHE_SHIFT=5
#
# CPU selection
#
-# CONFIG_CPU_MIPS32_R1 is not set
+CONFIG_CPU_MIPS32_R1=y
# CONFIG_CPU_MIPS32_R2 is not set
# CONFIG_CPU_MIPS64_R1 is not set
# CONFIG_CPU_MIPS64_R2 is not set
@@ -137,7 +137,7 @@ CONFIG_MIPS_L1_CACHE_SHIFT=5
# CONFIG_CPU_TX39XX is not set
# CONFIG_CPU_VR41XX is not set
# CONFIG_CPU_R4300 is not set
-CONFIG_CPU_R4X00=y
+# CONFIG_CPU_R4X00 is not set
# CONFIG_CPU_TX49XX is not set
# CONFIG_CPU_R5000 is not set
# CONFIG_CPU_R5432 is not set
@@ -148,10 +148,11 @@ CONFIG_CPU_R4X00=y
# CONFIG_CPU_RM7000 is not set
# CONFIG_CPU_RM9000 is not set
# CONFIG_CPU_SB1 is not set
-CONFIG_SYS_HAS_CPU_R4X00=y
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_CPU_MIPS32=y
+CONFIG_CPU_MIPSR1=y
CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
-CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y
#
# Kernel type
@@ -162,11 +163,11 @@ CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_8KB is not set
# CONFIG_PAGE_SIZE_16KB is not set
# CONFIG_PAGE_SIZE_64KB is not set
+CONFIG_CPU_HAS_PREFETCH=y
# CONFIG_MIPS_MT is not set
# CONFIG_64BIT_PHYS_ADDR is not set
# CONFIG_CPU_ADVANCED is not set
CONFIG_CPU_HAS_LLSC=y
-CONFIG_CPU_HAS_LLDSCD=y
CONFIG_CPU_HAS_SYNC=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
diff --git a/arch/mips/configs/pnx8550-v2pci_defconfig b/arch/mips/configs/pnx8550-v2pci_defconfig
index deb24c29ac0..05e65206a7b 100644
--- a/arch/mips/configs/pnx8550-v2pci_defconfig
+++ b/arch/mips/configs/pnx8550-v2pci_defconfig
@@ -128,7 +128,7 @@ CONFIG_MIPS_L1_CACHE_SHIFT=5
#
# CPU selection
#
-# CONFIG_CPU_MIPS32_R1 is not set
+CONFIG_CPU_MIPS32_R1=y
# CONFIG_CPU_MIPS32_R2 is not set
# CONFIG_CPU_MIPS64_R1 is not set
# CONFIG_CPU_MIPS64_R2 is not set
@@ -136,7 +136,7 @@ CONFIG_MIPS_L1_CACHE_SHIFT=5
# CONFIG_CPU_TX39XX is not set
# CONFIG_CPU_VR41XX is not set
# CONFIG_CPU_R4300 is not set
-CONFIG_CPU_R4X00=y
+# CONFIG_CPU_R4X00 is not set
# CONFIG_CPU_TX49XX is not set
# CONFIG_CPU_R5000 is not set
# CONFIG_CPU_R5432 is not set
@@ -147,10 +147,11 @@ CONFIG_CPU_R4X00=y
# CONFIG_CPU_RM7000 is not set
# CONFIG_CPU_RM9000 is not set
# CONFIG_CPU_SB1 is not set
-CONFIG_SYS_HAS_CPU_R4X00=y
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_CPU_MIPS32=y
+CONFIG_CPU_MIPSR1=y
CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
-CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y
#
# Kernel type
@@ -161,6 +162,7 @@ CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_8KB is not set
# CONFIG_PAGE_SIZE_16KB is not set
# CONFIG_PAGE_SIZE_64KB is not set
+CONFIG_CPU_HAS_PREFETCH=y
# CONFIG_MIPS_MT is not set
# CONFIG_64BIT_PHYS_ADDR is not set
CONFIG_CPU_ADVANCED=y
diff --git a/arch/mips/ddb5xxx/common/rtc_ds1386.c b/arch/mips/ddb5xxx/common/rtc_ds1386.c
index f5b11508ff2..995896ac0e3 100644
--- a/arch/mips/ddb5xxx/common/rtc_ds1386.c
+++ b/arch/mips/ddb5xxx/common/rtc_ds1386.c
@@ -41,7 +41,9 @@ rtc_ds1386_get_time(void)
u8 byte;
u8 temp;
unsigned int year, month, day, hour, minute, second;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
/* let us freeze external registers */
byte = READ_RTC(0xB);
byte &= 0x3f;
@@ -60,6 +62,7 @@ rtc_ds1386_get_time(void)
/* enable time transfer */
byte |= 0x80;
WRITE_RTC(0xB, byte);
+ spin_unlock_irqrestore(&rtc_lock, flags);
/* calc hour */
if (temp & 0x40) {
@@ -81,7 +84,9 @@ rtc_ds1386_set_time(unsigned long t)
u8 byte;
u8 temp;
u8 year, month, day, hour, minute, second;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
/* let us freeze external registers */
byte = READ_RTC(0xB);
byte &= 0x3f;
@@ -133,6 +138,7 @@ rtc_ds1386_set_time(unsigned long t)
if (second != READ_RTC(0x1)) {
WRITE_RTC(0x1, second);
}
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
diff --git a/arch/mips/dec/time.c b/arch/mips/dec/time.c
index dc7091caa7a..17482234413 100644
--- a/arch/mips/dec/time.c
+++ b/arch/mips/dec/time.c
@@ -37,10 +37,25 @@
#include <asm/dec/machtype.h>
+/*
+ * Returns true if a clock update is in progress
+ */
+static inline unsigned char dec_rtc_is_updating(void)
+{
+ unsigned char uip;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
+ uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP);
+ spin_unlock_irqrestore(&rtc_lock, flags);
+ return uip;
+}
+
static unsigned long dec_rtc_get_time(void)
{
unsigned int year, mon, day, hour, min, sec, real_year;
int i;
+ unsigned long flags;
/* The Linux interpretation of the DS1287 clock register contents:
* When the Update-In-Progress (UIP) flag goes from 1 to 0, the
@@ -49,11 +64,12 @@ static unsigned long dec_rtc_get_time(void)
*/
/* read RTC exactly on falling edge of update flag */
for (i = 0; i < 1000000; i++) /* may take up to 1 second... */
- if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)
+ if (dec_rtc_is_updating())
break;
for (i = 0; i < 1000000; i++) /* must try at least 2.228 ms */
- if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
+ if (!dec_rtc_is_updating())
break;
+ spin_lock_irqsave(&rtc_lock, flags);
/* Isn't this overkill? UIP above should guarantee consistency */
do {
sec = CMOS_READ(RTC_SECONDS);
@@ -77,6 +93,7 @@ static unsigned long dec_rtc_get_time(void)
* of unused BBU RAM locations.
*/
real_year = CMOS_READ(RTC_DEC_YEAR);
+ spin_unlock_irqrestore(&rtc_lock, flags);
year += real_year - 72 + 2000;
return mktime(year, mon, day, hour, min, sec);
@@ -95,6 +112,8 @@ static int dec_rtc_set_mmss(unsigned long nowtime)
int real_seconds, real_minutes, cmos_minutes;
unsigned char save_control, save_freq_select;
+ /* irq are locally disabled here */
+ spin_lock(&rtc_lock);
/* tell the clock it's being set */
save_control = CMOS_READ(RTC_CONTROL);
CMOS_WRITE((save_control | RTC_SET), RTC_CONTROL);
@@ -141,6 +160,7 @@ static int dec_rtc_set_mmss(unsigned long nowtime)
*/
CMOS_WRITE(save_control, RTC_CONTROL);
CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
+ spin_unlock(&rtc_lock);
return retval;
}
diff --git a/arch/mips/jmr3927/common/rtc_ds1742.c b/arch/mips/jmr3927/common/rtc_ds1742.c
index 1ae4318e135..8b407d7dc46 100644
--- a/arch/mips/jmr3927/common/rtc_ds1742.c
+++ b/arch/mips/jmr3927/common/rtc_ds1742.c
@@ -57,7 +57,9 @@ rtc_ds1742_get_time(void)
{
unsigned int year, month, day, hour, minute, second;
unsigned int century;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
CMOS_WRITE(RTC_READ, RTC_CONTROL);
second = BCD2BIN(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
minute = BCD2BIN(CMOS_READ(RTC_MINUTES));
@@ -67,6 +69,7 @@ rtc_ds1742_get_time(void)
year = BCD2BIN(CMOS_READ(RTC_YEAR));
century = BCD2BIN(CMOS_READ(RTC_CENTURY) & RTC_CENTURY_MASK);
CMOS_WRITE(0, RTC_CONTROL);
+ spin_unlock_irqrestore(&rtc_lock, flags);
year += century * 100;
@@ -81,7 +84,9 @@ rtc_ds1742_set_time(unsigned long t)
u8 year, month, day, hour, minute, second;
u8 cmos_year, cmos_month, cmos_day, cmos_hour, cmos_minute, cmos_second;
int cmos_century;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
CMOS_WRITE(RTC_READ, RTC_CONTROL);
cmos_second = (u8)(CMOS_READ(RTC_SECONDS) & RTC_SECONDS_MASK);
cmos_minute = (u8)CMOS_READ(RTC_MINUTES);
@@ -139,6 +144,7 @@ rtc_ds1742_set_time(unsigned long t)
/* RTC_CENTURY and RTC_CONTROL share same address... */
CMOS_WRITE(cmos_century, RTC_CONTROL);
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c
index 908e6368420..dd118c60bcd 100644
--- a/arch/mips/kernel/irixsig.c
+++ b/arch/mips/kernel/irixsig.c
@@ -502,8 +502,7 @@ asmlinkage int irix_sigpoll_sys(unsigned long __user *set,
while(1) {
long tmp = 0;
- current->state = TASK_INTERRUPTIBLE;
- expire = schedule_timeout(expire);
+ expire = schedule_timeout_interruptible(expire);
for (i=0; i<=4; i++)
tmp |= (current->pending.signal.sig[i] & kset.sig[i]);
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index f1b0f3e1f95..510da5fda56 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -174,51 +174,10 @@ int ptrace_setfpregs (struct task_struct *child, __u32 __user *data)
return 0;
}
-asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
{
- struct task_struct *child;
int ret;
-#if 0
- printk("ptrace(r=%d,pid=%d,addr=%08lx,data=%08lx)\n",
- (int) request, (int) pid, (unsigned long) addr,
- (unsigned long) data);
-#endif
- lock_kernel();
- ret = -EPERM;
- if (request == PTRACE_TRACEME) {
- /* are we already being traced? */
- if (current->ptrace & PT_PTRACED)
- goto out;
- if ((ret = security_ptrace(current->parent, current)))
- goto out;
- /* set the ptrace bit in the process flags. */
- current->ptrace |= PT_PTRACED;
- ret = 0;
- goto out;
- }
- ret = -ESRCH;
- read_lock(&tasklist_lock);
- child = find_task_by_pid(pid);
- if (child)
- get_task_struct(child);
- read_unlock(&tasklist_lock);
- if (!child)
- goto out;
-
- ret = -EPERM;
- if (pid == 1) /* you may not mess with init */
- goto out_tsk;
-
- if (request == PTRACE_ATTACH) {
- ret = ptrace_attach(child);
- goto out_tsk;
- }
-
- ret = ptrace_check_attach(child, request == PTRACE_KILL);
- if (ret < 0)
- goto out_tsk;
-
switch (request) {
/* when I and D space are separate, these will need to be fixed. */
case PTRACE_PEEKTEXT: /* read word at location addr. */
@@ -319,7 +278,7 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
if (!cpu_has_dsp) {
tmp = 0;
ret = -EIO;
- goto out_tsk;
+ goto out;
}
if (child->thread.dsp.used_dsp) {
dregs = __get_dsp_regs(child);
@@ -333,14 +292,14 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
if (!cpu_has_dsp) {
tmp = 0;
ret = -EIO;
- goto out_tsk;
+ goto out;
}
tmp = child->thread.dsp.dspcontrol;
break;
default:
tmp = 0;
ret = -EIO;
- goto out_tsk;
+ goto out;
}
ret = put_user(tmp, (unsigned long __user *) data);
break;
@@ -495,11 +454,7 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
ret = ptrace_request(child, request, addr, data);
break;
}
-
-out_tsk:
- put_task_struct(child);
-out:
- unlock_kernel();
+ out:
return ret;
}
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index 8c81f3cb4e2..1d855112bac 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -20,42 +20,42 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/init.h>
-#include <asm/uaccess.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/vmalloc.h>
-#include <linux/elf.h>
-#include <linux/seq_file.h>
-#include <linux/syscalls.h>
-#include <linux/moduleloader.h>
-#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <asm/mipsmtregs.h>
-#include <asm/cacheflush.h>
-#include <asm/atomic.h>
+#include <asm/bitops.h>
#include <asm/cpu.h>
#include <asm/processor.h>
-#include <asm/system.h>
#include <asm/rtlx.h>
+#include <asm/uaccess.h>
-#define RTLX_MAJOR 64
#define RTLX_TARG_VPE 1
-struct rtlx_info *rtlx;
+static struct rtlx_info *rtlx;
static int major;
static char module_name[] = "rtlx";
-static inline int spacefree(int read, int write, int size);
+static struct irqaction irq;
+static int irq_num;
+
+static inline int spacefree(int read, int write, int size)
+{
+ if (read == write) {
+ /*
+ * never fill the buffer completely, so indexes are always
+ * equal if empty and only empty, or !equal if data available
+ */
+ return size - 1;
+ }
+
+ return ((read + size - write) % size) - 1;
+}
static struct chan_waitqueues {
wait_queue_head_t rt_queue;
wait_queue_head_t lx_queue;
} channel_wqs[RTLX_CHANNELS];
-static struct irqaction irq;
-static int irq_num;
-
extern void *vpe_get_shared(int index);
static void rtlx_dispatch(struct pt_regs *regs)
@@ -63,9 +63,8 @@ static void rtlx_dispatch(struct pt_regs *regs)
do_IRQ(MIPSCPU_INT_BASE + MIPS_CPU_RTLX_IRQ, regs);
}
-irqreturn_t rtlx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rtlx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
- irqreturn_t r = IRQ_HANDLED;
int i;
for (i = 0; i < RTLX_CHANNELS; i++) {
@@ -75,30 +74,7 @@ irqreturn_t rtlx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
wake_up_interruptible(&channel_wqs[i].lx_queue);
}
- return r;
-}
-
-void dump_rtlx(void)
-{
- int i;
-
- printk("id 0x%lx state %d\n", rtlx->id, rtlx->state);
-
- for (i = 0; i < RTLX_CHANNELS; i++) {
- struct rtlx_channel *chan = &rtlx->channel[i];
-
- printk(" rt_state %d lx_state %d buffer_size %d\n",
- chan->rt_state, chan->lx_state, chan->buffer_size);
-
- printk(" rt_read %d rt_write %d\n",
- chan->rt_read, chan->rt_write);
-
- printk(" lx_read %d lx_write %d\n",
- chan->lx_read, chan->lx_write);
-
- printk(" rt_buffer <%s>\n", chan->rt_buffer);
- printk(" lx_buffer <%s>\n", chan->lx_buffer);
- }
+ return IRQ_HANDLED;
}
/* call when we have the address of the shared structure from the SP side. */
@@ -108,7 +84,7 @@ static int rtlx_init(struct rtlx_info *rtlxi)
if (rtlxi->id != RTLX_ID) {
printk(KERN_WARNING "no valid RTLX id at 0x%p\n", rtlxi);
- return (-ENOEXEC);
+ return -ENOEXEC;
}
/* initialise the wait queues */
@@ -120,9 +96,8 @@ static int rtlx_init(struct rtlx_info *rtlxi)
/* set up for interrupt handling */
memset(&irq, 0, sizeof(struct irqaction));
- if (cpu_has_vint) {
+ if (cpu_has_vint)
set_vi_handler(MIPS_CPU_RTLX_IRQ, rtlx_dispatch);
- }
irq_num = MIPSCPU_INT_BASE + MIPS_CPU_RTLX_IRQ;
irq.handler = rtlx_interrupt;
@@ -132,7 +107,8 @@ static int rtlx_init(struct rtlx_info *rtlxi)
setup_irq(irq_num, &irq);
rtlx = rtlxi;
- return (0);
+
+ return 0;
}
/* only allow one open process at a time to open each channel */
@@ -147,36 +123,36 @@ static int rtlx_open(struct inode *inode, struct file *filp)
if (rtlx == NULL) {
struct rtlx_info **p;
if( (p = vpe_get_shared(RTLX_TARG_VPE)) == NULL) {
- printk(" vpe_get_shared is NULL. Has an SP program been loaded?\n");
- return (-EFAULT);
+ printk(KERN_ERR "vpe_get_shared is NULL. "
+ "Has an SP program been loaded?\n");
+ return -EFAULT;
}
if (*p == NULL) {
- printk(" vpe_shared %p %p\n", p, *p);
- return (-EFAULT);
+ printk(KERN_ERR "vpe_shared %p %p\n", p, *p);
+ return -EFAULT;
}
if ((ret = rtlx_init(*p)) < 0)
- return (ret);
+ return ret;
}
chan = &rtlx->channel[minor];
- /* already open? */
- if (chan->lx_state == RTLX_STATE_OPENED)
- return (-EBUSY);
+ if (test_and_set_bit(RTLX_STATE_OPENED, &chan->lx_state))
+ return -EBUSY;
- chan->lx_state = RTLX_STATE_OPENED;
- return (0);
+ return 0;
}
static int rtlx_release(struct inode *inode, struct file *filp)
{
- int minor;
+ int minor = MINOR(inode->i_rdev);
- minor = MINOR(inode->i_rdev);
- rtlx->channel[minor].lx_state = RTLX_STATE_UNUSED;
- return (0);
+ clear_bit(RTLX_STATE_OPENED, &rtlx->channel[minor].lx_state);
+ smp_mb__after_clear_bit();
+
+ return 0;
}
static unsigned int rtlx_poll(struct file *file, poll_table * wait)
@@ -199,12 +175,13 @@ static unsigned int rtlx_poll(struct file *file, poll_table * wait)
if (spacefree(chan->rt_read, chan->rt_write, chan->buffer_size))
mask |= POLLOUT | POLLWRNORM;
- return (mask);
+ return mask;
}
static ssize_t rtlx_read(struct file *file, char __user * buffer, size_t count,
loff_t * ppos)
{
+ unsigned long failed;
size_t fl = 0L;
int minor;
struct rtlx_channel *lx;
@@ -216,7 +193,7 @@ static ssize_t rtlx_read(struct file *file, char __user * buffer, size_t count,
/* data available? */
if (lx->lx_write == lx->lx_read) {
if (file->f_flags & O_NONBLOCK)
- return (0); // -EAGAIN makes cat whinge
+ return 0; /* -EAGAIN makes cat whinge */
/* go to sleep */
add_wait_queue(&channel_wqs[minor].lx_queue, &wait);
@@ -232,39 +209,39 @@ static ssize_t rtlx_read(struct file *file, char __user * buffer, size_t count,
}
/* find out how much in total */
- count = min( count,
- (size_t)(lx->lx_write + lx->buffer_size - lx->lx_read) % lx->buffer_size);
+ count = min(count,
+ (size_t)(lx->lx_write + lx->buffer_size - lx->lx_read) % lx->buffer_size);
/* then how much from the read pointer onwards */
- fl = min( count, (size_t)lx->buffer_size - lx->lx_read);
+ fl = min(count, (size_t)lx->buffer_size - lx->lx_read);
- copy_to_user (buffer, &lx->lx_buffer[lx->lx_read], fl);
+ failed = copy_to_user (buffer, &lx->lx_buffer[lx->lx_read], fl);
+ if (failed) {
+ count = fl - failed;
+ goto out;
+ }
/* and if there is anything left at the beginning of the buffer */
- if ( count - fl )
- copy_to_user (buffer + fl, lx->lx_buffer, count - fl);
+ if (count - fl) {
+ failed = copy_to_user (buffer + fl, lx->lx_buffer, count - fl);
+ if (failed) {
+ count -= failed;
+ goto out;
+ }
+ }
+out:
/* update the index */
lx->lx_read += count;
lx->lx_read %= lx->buffer_size;
- return (count);
-}
-
-static inline int spacefree(int read, int write, int size)
-{
- if (read == write) {
- /* never fill the buffer completely, so indexes are always equal if empty
- and only empty, or !equal if data available */
- return (size - 1);
- }
-
- return ((read + size - write) % size) - 1;
+ return count;
}
static ssize_t rtlx_write(struct file *file, const char __user * buffer,
size_t count, loff_t * ppos)
{
+ unsigned long failed;
int minor;
struct rtlx_channel *rt;
size_t fl;
@@ -277,7 +254,7 @@ static ssize_t rtlx_write(struct file *file, const char __user * buffer,
if (!spacefree(rt->rt_read, rt->rt_write, rt->buffer_size)) {
if (file->f_flags & O_NONBLOCK)
- return (-EAGAIN);
+ return -EAGAIN;
add_wait_queue(&channel_wqs[minor].rt_queue, &wait);
set_current_state(TASK_INTERRUPTIBLE);
@@ -290,52 +267,64 @@ static ssize_t rtlx_write(struct file *file, const char __user * buffer,
}
/* total number of bytes to copy */
- count = min( count, (size_t)spacefree(rt->rt_read, rt->rt_write, rt->buffer_size) );
+ count = min(count, (size_t)spacefree(rt->rt_read, rt->rt_write, rt->buffer_size) );
/* first bit from write pointer to the end of the buffer, or count */
fl = min(count, (size_t) rt->buffer_size - rt->rt_write);
- copy_from_user(&rt->rt_buffer[rt->rt_write], buffer, fl);
+ failed = copy_from_user(&rt->rt_buffer[rt->rt_write], buffer, fl);
+ if (failed) {
+ count = fl - failed;
+ goto out;
+ }
/* if there's any left copy to the beginning of the buffer */
- if( count - fl )
- copy_from_user(rt->rt_buffer, buffer + fl, count - fl);
+ if (count - fl) {
+ failed = copy_from_user(rt->rt_buffer, buffer + fl, count - fl);
+ if (failed) {
+ count -= failed;
+ goto out;
+ }
+ }
+out:
rt->rt_write += count;
rt->rt_write %= rt->buffer_size;
- return(count);
+ return count;
}
static struct file_operations rtlx_fops = {
- .owner = THIS_MODULE,
- .open = rtlx_open,
- .release = rtlx_release,
- .write = rtlx_write,
- .read = rtlx_read,
- .poll = rtlx_poll
+ .owner = THIS_MODULE,
+ .open = rtlx_open,
+ .release = rtlx_release,
+ .write = rtlx_write,
+ .read = rtlx_read,
+ .poll = rtlx_poll
};
-static int rtlx_module_init(void)
+static char register_chrdev_failed[] __initdata =
+ KERN_ERR "rtlx_module_init: unable to register device\n";
+
+static int __init rtlx_module_init(void)
{
- if ((major = register_chrdev(RTLX_MAJOR, module_name, &rtlx_fops)) < 0) {
- printk("rtlx_module_init: unable to register device\n");
- return (-EBUSY);
+ major = register_chrdev(0, module_name, &rtlx_fops);
+ if (major < 0) {
+ printk(register_chrdev_failed);
+ return major;
}
- if (major == 0)
- major = RTLX_MAJOR;
-
- return (0);
+ return 0;
}
-static void rtlx_module_exit(void)
+static void __exit rtlx_module_exit(void)
{
unregister_chrdev(major, module_name);
}
module_init(rtlx_module_init);
module_exit(rtlx_module_exit);
+
MODULE_DESCRIPTION("MIPS RTLX");
-MODULE_AUTHOR("Elizabeth Clarke, MIPS Technologies, Inc");
+MODULE_AUTHOR("Elizabeth Clarke, MIPS Technologies, Inc.");
MODULE_LICENSE("GPL");
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 9202a17db8f..05e09eedabf 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -384,9 +384,6 @@ give_sigsegv:
return 0;
}
-extern void setup_rt_frame_n32(struct k_sigaction * ka,
- struct pt_regs *regs, int signr, sigset_t *set, siginfo_t *info);
-
static inline int handle_signal(unsigned long sig, siginfo_t *info,
struct k_sigaction *ka, sigset_t *oldset, struct pt_regs *regs)
{
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index dbe82130312..e315d3f6aa6 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -647,8 +647,8 @@ static inline void *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
return (void *)((sp - frame_size) & ALMASK);
}
-void setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
- int signr, sigset_t *set)
+int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set)
{
struct sigframe *frame;
int err = 0;
@@ -694,13 +694,15 @@ void setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
current->comm, current->pid,
frame, regs->cp0_epc, frame->sf_code);
#endif
- return;
+ return 1;
give_sigsegv:
force_sigsegv(signr, current);
+ return 0;
}
-void setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs, int signr, sigset_t *set, siginfo_t *info)
+int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set, siginfo_t *info)
{
struct rt_sigframe32 *frame;
int err = 0;
@@ -763,10 +765,11 @@ void setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs, int signr,
current->comm, current->pid,
frame, regs->cp0_epc, frame->rs_code);
#endif
- return;
+ return 1;
give_sigsegv:
force_sigsegv(signr, current);
+ return 0;
}
static inline int handle_signal(unsigned long sig, siginfo_t *info,
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 97fefcc9dbe..06be405be39 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -58,10 +58,6 @@
typedef void *vpe_handle;
-// defined here because the kernel module loader doesn't have
-// anything to do with it.
-#define SHN_MIPS_SCOMMON 0xff03
-
#ifndef ARCH_SHF_SMALL
#define ARCH_SHF_SMALL 0
#endif
@@ -69,11 +65,8 @@ typedef void *vpe_handle;
/* If this is set, the section belongs in the init part of the module */
#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG-1))
-// temp number,
-#define VPE_MAJOR 63
-
static char module_name[] = "vpe";
-static int major = 0;
+static int major;
/* grab the likely amount of memory we will need. */
#ifdef CONFIG_MIPS_VPE_LOADER_TOM
@@ -98,22 +91,7 @@ enum tc_state {
TC_STATE_DYNAMIC
};
-struct vpe;
-typedef struct tc {
- enum tc_state state;
- int index;
-
- /* parent VPE */
- struct vpe *pvpe;
-
- /* The list of TC's with this VPE */
- struct list_head tc;
-
- /* The global list of tc's */
- struct list_head list;
-} tc_t;
-
-typedef struct vpe {
+struct vpe {
enum vpe_state state;
/* (device) minor associated with this vpe */
@@ -135,7 +113,21 @@ typedef struct vpe {
/* shared symbol address */
void *shared_ptr;
-} vpe_t;
+};
+
+struct tc {
+ enum tc_state state;
+ int index;
+
+ /* parent VPE */
+ struct vpe *pvpe;
+
+ /* The list of TC's with this VPE */
+ struct list_head tc;
+
+ /* The global list of tc's */
+ struct list_head list;
+};
struct vpecontrol_ {
/* Virtual processing elements */
@@ -146,7 +138,7 @@ struct vpecontrol_ {
} vpecontrol;
static void release_progmem(void *ptr);
-static void dump_vpe(vpe_t * v);
+static void dump_vpe(struct vpe * v);
extern void save_gp_address(unsigned int secbase, unsigned int rel);
/* get the vpe associated with this minor */
@@ -197,13 +189,11 @@ struct vpe *alloc_vpe(int minor)
{
struct vpe *v;
- if ((v = kmalloc(sizeof(struct vpe), GFP_KERNEL)) == NULL) {
+ if ((v = kzalloc(sizeof(struct vpe), GFP_KERNEL)) == NULL) {
printk(KERN_WARNING "VPE: alloc_vpe no mem\n");
return NULL;
}
- memset(v, 0, sizeof(struct vpe));
-
INIT_LIST_HEAD(&v->tc);
list_add_tail(&v->list, &vpecontrol.vpe_list);
@@ -216,13 +206,11 @@ struct tc *alloc_tc(int index)
{
struct tc *t;
- if ((t = kmalloc(sizeof(struct tc), GFP_KERNEL)) == NULL) {
+ if ((t = kzalloc(sizeof(struct tc), GFP_KERNEL)) == NULL) {
printk(KERN_WARNING "VPE: alloc_tc no mem\n");
return NULL;
}
- memset(t, 0, sizeof(struct tc));
-
INIT_LIST_HEAD(&t->tc);
list_add_tail(&t->list, &vpecontrol.tc_list);
@@ -412,16 +400,17 @@ static int apply_r_mips_26(struct module *me, uint32_t *location,
return -ENOEXEC;
}
-/* Not desperately convinced this is a good check of an overflow condition
- anyway. But it gets in the way of handling undefined weak symbols which
- we want to set to zero.
- if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
- printk(KERN_ERR
- "module %s: relocation overflow\n",
- me->name);
- return -ENOEXEC;
- }
-*/
+/*
+ * Not desperately convinced this is a good check of an overflow condition
+ * anyway. But it gets in the way of handling undefined weak symbols which
+ * we want to set to zero.
+ * if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
+ * printk(KERN_ERR
+ * "module %s: relocation overflow\n",
+ * me->name);
+ * return -ENOEXEC;
+ * }
+ */
*location = (*location & ~0x03ffffff) |
((*location + (v >> 2)) & 0x03ffffff);
@@ -681,7 +670,7 @@ static void dump_tclist(void)
}
/* We are prepared so configure and start the VPE... */
-int vpe_run(vpe_t * v)
+int vpe_run(struct vpe * v)
{
unsigned long val;
struct tc *t;
@@ -772,7 +761,7 @@ int vpe_run(vpe_t * v)
return 0;
}
-static unsigned long find_vpe_symbols(vpe_t * v, Elf_Shdr * sechdrs,
+static unsigned long find_vpe_symbols(struct vpe * v, Elf_Shdr * sechdrs,
unsigned int symindex, const char *strtab,
struct module *mod)
{
@@ -792,10 +781,12 @@ static unsigned long find_vpe_symbols(vpe_t * v, Elf_Shdr * sechdrs,
return 0;
}
-/* Allocates a VPE with some program code space(the load address), copies the contents
- of the program (p)buffer performing relocatations/etc, free's it when finished.
+/*
+ * Allocates a VPE with some program code space(the load address), copies
+ * the contents of the program (p)buffer performing relocatations/etc,
+ * free's it when finished.
*/
-int vpe_elfload(vpe_t * v)
+int vpe_elfload(struct vpe * v)
{
Elf_Ehdr *hdr;
Elf_Shdr *sechdrs;
@@ -931,7 +922,7 @@ cleanup:
return err;
}
-static void dump_vpe(vpe_t * v)
+static void dump_vpe(struct vpe * v)
{
struct tc *t;
@@ -947,7 +938,7 @@ static void dump_vpe(vpe_t * v)
static int vpe_open(struct inode *inode, struct file *filp)
{
int minor;
- vpe_t *v;
+ struct vpe *v;
/* assume only 1 device at the mo. */
if ((minor = MINOR(inode->i_rdev)) != 1) {
@@ -1001,7 +992,7 @@ static int vpe_open(struct inode *inode, struct file *filp)
static int vpe_release(struct inode *inode, struct file *filp)
{
int minor, ret = 0;
- vpe_t *v;
+ struct vpe *v;
Elf_Ehdr *hdr;
minor = MINOR(inode->i_rdev);
@@ -1035,7 +1026,7 @@ static ssize_t vpe_write(struct file *file, const char __user * buffer,
{
int minor;
size_t ret = count;
- vpe_t *v;
+ struct vpe *v;
minor = MINOR(file->f_dentry->d_inode->i_rdev);
if ((v = get_vpe(minor)) == NULL)
@@ -1180,14 +1171,11 @@ static int __init vpe_module_init(void)
return -ENODEV;
}
- if ((major = register_chrdev(VPE_MAJOR, module_name, &vpe_fops) < 0)) {
+ if ((major = register_chrdev(0, module_name, &vpe_fops) < 0)) {
printk("VPE loader: unable to register character device\n");
- return -EBUSY;
+ return major;
}
- if (major == 0)
- major = VPE_MAJOR;
-
dmt();
dvpe();
diff --git a/arch/mips/lasat/ds1603.c b/arch/mips/lasat/ds1603.c
index 9d7812e03dc..7dced67c55e 100644
--- a/arch/mips/lasat/ds1603.c
+++ b/arch/mips/lasat/ds1603.c
@@ -8,6 +8,7 @@
#include <asm/lasat/lasat.h>
#include <linux/delay.h>
#include <asm/lasat/ds1603.h>
+#include <asm/time.h>
#include "ds1603.h"
@@ -138,19 +139,27 @@ static void rtc_end_op(void)
unsigned long ds1603_read(void)
{
unsigned long word;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
rtc_init_op();
rtc_write_byte(READ_TIME_CMD);
word = rtc_read_word();
rtc_end_op();
+ spin_unlock_irqrestore(&rtc_lock, flags);
return word;
}
int ds1603_set(unsigned long time)
{
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
rtc_init_op();
rtc_write_byte(SET_TIME_CMD);
rtc_write_word(time);
rtc_end_op();
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
diff --git a/arch/mips/momentum/jaguar_atx/setup.c b/arch/mips/momentum/jaguar_atx/setup.c
index 768bf440645..bab192ddc18 100644
--- a/arch/mips/momentum/jaguar_atx/setup.c
+++ b/arch/mips/momentum/jaguar_atx/setup.c
@@ -149,7 +149,9 @@ arch_initcall(per_cpu_mappings);
unsigned long m48t37y_get_time(void)
{
unsigned int year, month, day, hour, min, sec;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
/* stop the update */
rtc_base[0x7ff8] = 0x40;
@@ -166,6 +168,7 @@ unsigned long m48t37y_get_time(void)
/* start the update */
rtc_base[0x7ff8] = 0x00;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return mktime(year, month, day, hour, min, sec);
}
@@ -173,11 +176,13 @@ unsigned long m48t37y_get_time(void)
int m48t37y_set_time(unsigned long sec)
{
struct rtc_time tm;
+ unsigned long flags;
/* convert to a more useful format -- note months count from 0 */
to_tm(sec, &tm);
tm.tm_mon += 1;
+ spin_lock_irqsave(&rtc_lock, flags);
/* enable writing */
rtc_base[0x7ff8] = 0x80;
@@ -201,6 +206,7 @@ int m48t37y_set_time(unsigned long sec)
/* disable writing */
rtc_base[0x7ff8] = 0x00;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
diff --git a/arch/mips/momentum/ocelot_3/setup.c b/arch/mips/momentum/ocelot_3/setup.c
index a7803e08f9d..c9b7ff8148e 100644
--- a/arch/mips/momentum/ocelot_3/setup.c
+++ b/arch/mips/momentum/ocelot_3/setup.c
@@ -135,7 +135,9 @@ void setup_wired_tlb_entries(void)
unsigned long m48t37y_get_time(void)
{
unsigned int year, month, day, hour, min, sec;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
/* stop the update */
rtc_base[0x7ff8] = 0x40;
@@ -152,6 +154,7 @@ unsigned long m48t37y_get_time(void)
/* start the update */
rtc_base[0x7ff8] = 0x00;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return mktime(year, month, day, hour, min, sec);
}
@@ -159,11 +162,13 @@ unsigned long m48t37y_get_time(void)
int m48t37y_set_time(unsigned long sec)
{
struct rtc_time tm;
+ unsigned long flags;
/* convert to a more useful format -- note months count from 0 */
to_tm(sec, &tm);
tm.tm_mon += 1;
+ spin_lock_irqsave(&rtc_lock, flags);
/* enable writing */
rtc_base[0x7ff8] = 0x80;
@@ -187,6 +192,7 @@ int m48t37y_set_time(unsigned long sec)
/* disable writing */
rtc_base[0x7ff8] = 0x00;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
diff --git a/arch/mips/momentum/ocelot_c/setup.c b/arch/mips/momentum/ocelot_c/setup.c
index ce70fc96f16..2755c154747 100644
--- a/arch/mips/momentum/ocelot_c/setup.c
+++ b/arch/mips/momentum/ocelot_c/setup.c
@@ -140,7 +140,9 @@ unsigned long m48t37y_get_time(void)
unsigned char* rtc_base = (unsigned char*)0xfc800000;
#endif
unsigned int year, month, day, hour, min, sec;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
/* stop the update */
rtc_base[0x7ff8] = 0x40;
@@ -157,6 +159,7 @@ unsigned long m48t37y_get_time(void)
/* start the update */
rtc_base[0x7ff8] = 0x00;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return mktime(year, month, day, hour, min, sec);
}
@@ -169,11 +172,13 @@ int m48t37y_set_time(unsigned long sec)
unsigned char* rtc_base = (unsigned char*)0xfc800000;
#endif
struct rtc_time tm;
+ unsigned long flags;
/* convert to a more useful format -- note months count from 0 */
to_tm(sec, &tm);
tm.tm_mon += 1;
+ spin_lock_irqsave(&rtc_lock, flags);
/* enable writing */
rtc_base[0x7ff8] = 0x80;
@@ -197,6 +202,7 @@ int m48t37y_set_time(unsigned long sec)
/* disable writing */
rtc_base[0x7ff8] = 0x00;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
diff --git a/arch/mips/pmc-sierra/yosemite/setup.c b/arch/mips/pmc-sierra/yosemite/setup.c
index bdc2ab55bed..059755b5ed5 100644
--- a/arch/mips/pmc-sierra/yosemite/setup.c
+++ b/arch/mips/pmc-sierra/yosemite/setup.c
@@ -73,7 +73,9 @@ void __init bus_error_init(void)
unsigned long m48t37y_get_time(void)
{
unsigned int year, month, day, hour, min, sec;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
/* Stop the update to the time */
m48t37_base->control = 0x40;
@@ -88,6 +90,7 @@ unsigned long m48t37y_get_time(void)
/* Start the update to the time again */
m48t37_base->control = 0x00;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return mktime(year, month, day, hour, min, sec);
}
@@ -95,11 +98,13 @@ unsigned long m48t37y_get_time(void)
int m48t37y_set_time(unsigned long sec)
{
struct rtc_time tm;
+ unsigned long flags;
/* convert to a more useful format -- note months count from 0 */
to_tm(sec, &tm);
tm.tm_mon += 1;
+ spin_lock_irqsave(&rtc_lock, flags);
/* enable writing */
m48t37_base->control = 0x80;
@@ -123,6 +128,7 @@ int m48t37y_set_time(unsigned long sec)
/* disable writing */
m48t37_base->control = 0x00;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
diff --git a/arch/mips/sgi-ip22/ip22-time.c b/arch/mips/sgi-ip22/ip22-time.c
index df9b5694328..b7300cc5c5a 100644
--- a/arch/mips/sgi-ip22/ip22-time.c
+++ b/arch/mips/sgi-ip22/ip22-time.c
@@ -35,7 +35,9 @@ static unsigned long indy_rtc_get_time(void)
{
unsigned int yrs, mon, day, hrs, min, sec;
unsigned int save_control;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
save_control = hpc3c0->rtcregs[RTC_CMD] & 0xff;
hpc3c0->rtcregs[RTC_CMD] = save_control | RTC_TE;
@@ -47,6 +49,7 @@ static unsigned long indy_rtc_get_time(void)
yrs = BCD2BIN(hpc3c0->rtcregs[RTC_YEAR] & 0xff);
hpc3c0->rtcregs[RTC_CMD] = save_control;
+ spin_unlock_irqrestore(&rtc_lock, flags);
if (yrs < 45)
yrs += 30;
@@ -60,6 +63,7 @@ static int indy_rtc_set_time(unsigned long tim)
{
struct rtc_time tm;
unsigned int save_control;
+ unsigned long flags;
to_tm(tim, &tm);
@@ -68,6 +72,7 @@ static int indy_rtc_set_time(unsigned long tim)
if (tm.tm_year >= 100)
tm.tm_year -= 100;
+ spin_lock_irqsave(&rtc_lock, flags);
save_control = hpc3c0->rtcregs[RTC_CMD] & 0xff;
hpc3c0->rtcregs[RTC_CMD] = save_control | RTC_TE;
@@ -80,6 +85,7 @@ static int indy_rtc_set_time(unsigned long tim)
hpc3c0->rtcregs[RTC_HUNDREDTH_SECOND] = 0;
hpc3c0->rtcregs[RTC_CMD] = save_control;
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
diff --git a/arch/mips/sibyte/swarm/rtc_m41t81.c b/arch/mips/sibyte/swarm/rtc_m41t81.c
index 5b4fc26c1b3..c13914bdda5 100644
--- a/arch/mips/sibyte/swarm/rtc_m41t81.c
+++ b/arch/mips/sibyte/swarm/rtc_m41t81.c
@@ -144,6 +144,7 @@ static int m41t81_write(uint8_t addr, int b)
int m41t81_set_time(unsigned long t)
{
struct rtc_time tm;
+ unsigned long flags;
to_tm(t, &tm);
@@ -153,6 +154,7 @@ int m41t81_set_time(unsigned long t)
* believe we should finish writing min within a second.
*/
+ spin_lock_irqsave(&rtc_lock, flags);
tm.tm_sec = BIN2BCD(tm.tm_sec);
m41t81_write(M41T81REG_SC, tm.tm_sec);
@@ -180,6 +182,7 @@ int m41t81_set_time(unsigned long t)
tm.tm_year %= 100;
tm.tm_year = BIN2BCD(tm.tm_year);
m41t81_write(M41T81REG_YR, tm.tm_year);
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
@@ -187,19 +190,23 @@ int m41t81_set_time(unsigned long t)
unsigned long m41t81_get_time(void)
{
unsigned int year, mon, day, hour, min, sec;
+ unsigned long flags;
/*
* min is valid if two reads of sec are the same.
*/
for (;;) {
+ spin_lock_irqsave(&rtc_lock, flags);
sec = m41t81_read(M41T81REG_SC);
min = m41t81_read(M41T81REG_MN);
if (sec == m41t81_read(M41T81REG_SC)) break;
+ spin_unlock_irqrestore(&rtc_lock, flags);
}
hour = m41t81_read(M41T81REG_HR) & 0x3f;
day = m41t81_read(M41T81REG_DT);
mon = m41t81_read(M41T81REG_MO);
year = m41t81_read(M41T81REG_YR);
+ spin_unlock_irqrestore(&rtc_lock, flags);
sec = BCD2BIN(sec);
min = BCD2BIN(min);
diff --git a/arch/mips/sibyte/swarm/rtc_xicor1241.c b/arch/mips/sibyte/swarm/rtc_xicor1241.c
index d9ff9323f24..f4a17883641 100644
--- a/arch/mips/sibyte/swarm/rtc_xicor1241.c
+++ b/arch/mips/sibyte/swarm/rtc_xicor1241.c
@@ -113,9 +113,11 @@ int xicor_set_time(unsigned long t)
{
struct rtc_time tm;
int tmp;
+ unsigned long flags;
to_tm(t, &tm);
+ spin_lock_irqsave(&rtc_lock, flags);
/* unlock writes to the CCR */
xicor_write(X1241REG_SR, X1241REG_SR_WEL);
xicor_write(X1241REG_SR, X1241REG_SR_WEL | X1241REG_SR_RWEL);
@@ -160,6 +162,7 @@ int xicor_set_time(unsigned long t)
xicor_write(X1241REG_HR, tmp);
xicor_write(X1241REG_SR, 0);
+ spin_unlock_irqrestore(&rtc_lock, flags);
return 0;
}
@@ -167,7 +170,9 @@ int xicor_set_time(unsigned long t)
unsigned long xicor_get_time(void)
{
unsigned int year, mon, day, hour, min, sec, y2k;
+ unsigned long flags;
+ spin_lock_irqsave(&rtc_lock, flags);
sec = xicor_read(X1241REG_SC);
min = xicor_read(X1241REG_MN);
hour = xicor_read(X1241REG_HR);
@@ -183,6 +188,7 @@ unsigned long xicor_get_time(void)
mon = xicor_read(X1241REG_MO);
year = xicor_read(X1241REG_YR);
y2k = xicor_read(X1241REG_Y2K);
+ spin_unlock_irqrestore(&rtc_lock, flags);
sec = BCD2BIN(sec);
min = BCD2BIN(min);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-02 00:32:22 +0000