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Commit 518a829f authored by Anton Blanchard's avatar Anton Blanchard
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Merge samba.org:/scratch/anton/linux-2.5 

into samba.org:/scratch/anton/sfr
parents a9b490dc 91bb1cf1
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Makefile
View file @ 518a829f
......@@ -53,8 +53,10 @@ HOSTCXXFLAGS = -O2
CROSS_COMPILE =
# That's our default target when none is given on the command line
# Note that 'modules' will be added as a prerequisite as well,
# in the CONFIG_MODULES part below
all: vmlinux modules
all: vmlinux
# Decide whether to build built-in, modular, or both.
# Normally, just do built-in.
......@@ -508,6 +510,10 @@ depend dep:
ifdef CONFIG_MODULES
# By default, build modules as well
all: modules
# Build modules
.PHONY: modules __modversions
......
arch/alpha/Kconfig
View file @ 518a829f
......@@ -458,6 +458,11 @@ config ALPHA_SRM
If unsure, say N.
config EARLY_PRINTK
bool
depends on ALPHA_GENERIC || ALPHA_SRM
default y
config ALPHA_EISA
bool
depends on ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_NORITAKE || ALPHA_RAWHIDE
......
arch/alpha/kernel/Makefile
View file @ 518a829f
......@@ -33,8 +33,13 @@ obj-y += err_titan.o err_marvel.o
obj-y += es1888.o smc37c669.o smc37c93x.o ns87312.o gct.o
obj-y += srmcons.o
else
# Misc support
obj-$(CONFIG_ALPHA_SRM) += srmcons.o
# Core logic support
obj-$(CONFIG_ALPHA_APECS) += core_apecs.o
obj-$(CONFIG_ALPHA_CIA) += core_cia.o
......
arch/alpha/kernel/alpha_ksyms.c
View file @ 518a829f
......@@ -40,7 +40,6 @@
extern struct hwrpb_struct *hwrpb;
extern void dump_thread(struct pt_regs *, struct user *);
extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
extern spinlock_t rtc_lock;
/* these are C runtime functions with special calling conventions: */
......@@ -144,7 +143,9 @@ EXPORT_SYMBOL(pci_dac_dma_to_offset);
#endif
EXPORT_SYMBOL(dump_thread);
EXPORT_SYMBOL(dump_fpu);
EXPORT_SYMBOL(dump_elf_thread);
EXPORT_SYMBOL(dump_elf_task);
EXPORT_SYMBOL(dump_elf_task_fp);
EXPORT_SYMBOL(hwrpb);
EXPORT_SYMBOL(start_thread);
EXPORT_SYMBOL(alpha_read_fp_reg);
......
arch/alpha/kernel/core_irongate.c
View file @ 518a829f
This diff is collapsed.
arch/alpha/kernel/core_marvel.c
View file @ 518a829f
......@@ -732,21 +732,6 @@ marvel_iounmap(unsigned long addr)
EXPORT_SYMBOL(marvel_ioremap);
EXPORT_SYMBOL(marvel_iounmap);
#endif
/*
* SRMCons support
*
* Marvel doesn't have a real serial console -- it's either graphics or
* server management based. If we're running on the server management based
* console, allow the srmcons callback driver to be a console device.
*/
int
marvel_srmcons_allowed(void)
{
u64 *pu64 = (u64 *)((u64)hwrpb + hwrpb->ctbt_offset);
return (pu64[7] == 2);
}
/*
......@@ -874,8 +859,6 @@ marvel_node_mem_size(int nid)
#include <linux/slab.h>
#include <linux/delay.h>
#define MARVEL_AGP_APER_SIZE (64 * 1024 * 1024)
struct marvel_agp_aperture {
struct pci_iommu_arena *arena;
long pg_start;
......@@ -887,11 +870,14 @@ marvel_agp_setup(alpha_agp_info *agp)
{
struct marvel_agp_aperture *aper;
if (!alpha_agpgart_size)
return -ENOMEM;
aper = kmalloc(sizeof(*aper), GFP_KERNEL);
if (aper == NULL) return -ENOMEM;
aper->arena = agp->hose->sg_pci;
aper->pg_count = MARVEL_AGP_APER_SIZE / PAGE_SIZE;
aper->pg_count = alpha_agpgart_size / PAGE_SIZE;
aper->pg_start = iommu_reserve(aper->arena, aper->pg_count,
aper->pg_count - 1);
......
arch/alpha/kernel/core_titan.c
View file @ 518a829f
......@@ -580,8 +580,6 @@ EXPORT_SYMBOL(titan_iounmap);
#include <linux/slab.h>
#include <linux/delay.h>
#define TITAN_AGP_APER_SIZE (64 * 1024 * 1024)
struct titan_agp_aperture {
struct pci_iommu_arena *arena;
long pg_start;
......@@ -593,12 +591,15 @@ titan_agp_setup(alpha_agp_info *agp)
{
struct titan_agp_aperture *aper;
if (!alpha_agpgart_size)
return -ENOMEM;
aper = kmalloc(sizeof(struct titan_agp_aperture), GFP_KERNEL);
if (aper == NULL)
return -ENOMEM;
aper->arena = agp->hose->sg_pci;
aper->pg_count = TITAN_AGP_APER_SIZE / PAGE_SIZE;
aper->pg_count = alpha_agpgart_size / PAGE_SIZE;
aper->pg_start = iommu_reserve(aper->arena, aper->pg_count,
aper->pg_count - 1);
if (aper->pg_start < 0) {
......
arch/alpha/kernel/irq.c
View file @ 518a829f
......@@ -534,7 +534,7 @@ show_interrupts(struct seq_file *p, void *v)
#else
for (j = 0; j < NR_CPUS; j++)
if (cpu_online(j))
seq_printf(p, "%10u ", kstat_cpu(i).irqs[j]);
seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
#endif
seq_printf(p, " %14s", irq_desc[i].handler->typename);
seq_printf(p, " %c%s",
......
arch/alpha/kernel/pci_impl.h
View file @ 518a829f
......@@ -71,6 +71,8 @@ struct pci_iommu_arena;
#define IRONGATE_DEFAULT_MEM_BASE ((256*8-16)*1024*1024)
#define DEFAULT_AGP_APER_SIZE (64*1024*1024)
/*
* A small note about bridges and interrupts. The DECchip 21050 (and
* later) adheres to the PCI-PCI bridge specification. This says that
......@@ -153,6 +155,8 @@ extern struct pci_controller *pci_isa_hose;
/* Indicate that we trust the console to configure things properly. */
extern int pci_probe_only;
extern unsigned long alpha_agpgart_size;
extern void common_init_pci(void);
extern u8 common_swizzle(struct pci_dev *, u8 *);
extern struct pci_controller *alloc_pci_controller(void);
......
arch/alpha/kernel/process.c
View file @ 518a829f
......@@ -313,7 +313,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
}
/*
* fill in the user structure for a core dump..
* Fill in the user structure for an ECOFF core dump.
*/
void
dump_thread(struct pt_regs * pt, struct user * dump)
......@@ -373,12 +373,81 @@ dump_thread(struct pt_regs * pt, struct user * dump)
memcpy((char *)dump->regs + EF_SIZE, sw->fp, 32 * 8);
}
int
dump_fpu(struct pt_regs * regs, elf_fpregset_t *r)
/*
* Fill in the user structure for a ELF core dump.
*/
void
dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
{
/* switch stack follows right below pt_regs: */
struct switch_stack * sw = ((struct switch_stack *) regs) - 1;
memcpy(r, sw->fp, 32 * 8);
struct switch_stack * sw = ((struct switch_stack *) pt) - 1;
dest[ 0] = pt->r0;
dest[ 1] = pt->r1;
dest[ 2] = pt->r2;
dest[ 3] = pt->r3;
dest[ 4] = pt->r4;
dest[ 5] = pt->r5;
dest[ 6] = pt->r6;
dest[ 7] = pt->r7;
dest[ 8] = pt->r8;
dest[ 9] = sw->r9;
dest[10] = sw->r10;
dest[11] = sw->r11;
dest[12] = sw->r12;
dest[13] = sw->r13;
dest[14] = sw->r14;
dest[15] = sw->r15;
dest[16] = pt->r16;
dest[17] = pt->r17;
dest[18] = pt->r18;
dest[19] = pt->r19;
dest[20] = pt->r20;
dest[21] = pt->r21;
dest[22] = pt->r22;
dest[23] = pt->r23;
dest[24] = pt->r24;
dest[25] = pt->r25;
dest[26] = pt->r26;
dest[27] = pt->r27;
dest[28] = pt->r28;
dest[29] = pt->gp;
dest[30] = rdusp();
dest[31] = pt->pc;
/* Once upon a time this was the PS value. Which is stupid
since that is always 8 for usermode. Usurped for the more
useful value of the thread's UNIQUE field. */
dest[32] = ti->pcb.unique;
}
int
dump_elf_task(elf_greg_t *dest, struct task_struct *task)
{
struct thread_info *ti;
struct pt_regs *pt;
ti = task->thread_info;
pt = (struct pt_regs *)((unsigned long)ti + 2*PAGE_SIZE) - 1;
dump_elf_thread(dest, pt, ti);
return 1;
}
int
dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task)
{
struct thread_info *ti;
struct pt_regs *pt;
struct switch_stack *sw;
ti = task->thread_info;
pt = (struct pt_regs *)((unsigned long)ti + 2*PAGE_SIZE) - 1;
sw = (struct switch_stack *)pt - 1;
memcpy(dest, sw->fp, 32 * 8);
return 1;
}
......
arch/alpha/kernel/proto.h
View file @ 518a829f
......@@ -53,7 +53,6 @@ extern int marvel_pa_to_nid(unsigned long);
extern int marvel_cpuid_to_nid(int);
extern unsigned long marvel_node_mem_start(int);
extern unsigned long marvel_node_mem_size(int);
extern int marvel_srmcons_allowed(void);
extern struct _alpha_agp_info *marvel_agp_info(void);
struct io7 *marvel_find_io7(int pe);
struct io7 *marvel_next_io7(struct io7 *prev);
......@@ -109,9 +108,15 @@ extern unsigned long wildfire_node_mem_size(int);
/* setup.c */
extern unsigned long srm_hae;
extern int boot_cpuid;
extern int srmcons_output;
/* srmcons.c */
#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM)
extern void register_srm_console(void);
extern void unregister_srm_console(void);
#else
#define register_srm_console()
#define unregister_srm_console()
#endif
/* smp.c */
extern void setup_smp(void);
......
arch/alpha/kernel/ptrace.c
View file @ 518a829f
......@@ -102,7 +102,9 @@ get_reg_addr(struct task_struct * task, unsigned long regno)
if (regno == 30) {
addr = &task->thread_info->pcb.usp;
} else if (regno == 31 || regno > 64) {
} else if (regno == 65) {
addr = &task->thread_info->pcb.unique;
} else if (regno == 31 || regno > 65) {
zero = 0;
addr = &zero;
} else {
......
arch/alpha/kernel/setup.c
View file @ 518a829f
......@@ -77,18 +77,25 @@ int boot_cpuid;
* "srmcons" specified in the boot command arguments allows us to
* see kernel messages during the period of time before the true
* console device is "registered" during console_init(). As of this
* version (2.4.10), time_init() is the last Alpha-specific code
* called before console_init(), so we put "unregister" code
* there to prevent schizophrenic console behavior later... ;-}
* console device is "registered" during console_init().
* As of this version (2.5.59), console_init() will call
* disable_early_printk() as the last action before initializing
* the console drivers. That's the last possible time srmcons can be
* unregistered without interfering with console behavior.
*
* By default, OFF; set it with a bootcommand arg of "srmcons".
* By default, OFF; set it with a bootcommand arg of "srmcons" or
* "console=srm". The meaning of these two args is:
* "srmcons" - early callback prints
* "console=srm" - full callback based console, including early prints
*/
int srmcons_output = 0;
/* Enforce a memory size limit; useful for testing. By default, none. */
unsigned long mem_size_limit = 0;
/* Set AGP GART window size (0 means disabled). */
unsigned long alpha_agpgart_size = DEFAULT_AGP_APER_SIZE;
#ifdef CONFIG_ALPHA_GENERIC
struct alpha_machine_vector alpha_mv;
int alpha_using_srm;
......@@ -461,57 +468,6 @@ page_is_ram(unsigned long pfn)
#undef PFN_PHYS
#undef PFN_MAX
#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM)
/*
* Manage the SRM callbacks as a "console".
*/
static struct console srmcons;
void __init register_srm_console(void)
{
register_console(&srmcons);
}
void __init unregister_srm_console(void)
{
unregister_console(&srmcons);
}
static void srm_console_write(struct console *co, const char *s,
unsigned count)
{
srm_printk(s);
}
static kdev_t srm_console_device(struct console *c)
{
/* Huh? */
return mk_kdev(TTY_MAJOR, 64 + c->index);
}
static int __init srm_console_setup(struct console *co, char *options)
{
return 1;
}
static struct console srmcons = {
.name = "srm0",
.write = srm_console_write,
.device = srm_console_device,
.setup = srm_console_setup,
.flags = CON_PRINTBUFFER | CON_ENABLED, /* fake it out */
.index = -1,
};
#else
void __init register_srm_console(void)
{
}
void __init unregister_srm_console(void)
{
}
#endif
void __init
setup_arch(char **cmdline_p)
{
......@@ -574,7 +530,16 @@ setup_arch(char **cmdline_p)
continue;
}
if (strncmp(p, "srmcons", 7) == 0) {
srmcons_output = 1;
srmcons_output |= 1;
continue;
}
if (strncmp(p, "console=srm", 11) == 0) {
srmcons_output |= 2;
continue;
}
if (strncmp(p, "gartsize=", 9) == 0) {
alpha_agpgart_size =
get_mem_size_limit(p+9) << PAGE_SHIFT;
continue;
}
}
......@@ -585,6 +550,13 @@ setup_arch(char **cmdline_p)
/* If we want SRM console printk echoing early, do it now. */
if (alpha_using_srm && srmcons_output) {
register_srm_console();
/*
* If "console=srm" was specified, clear the srmcons_output
* flag now so that time.c won't unregister_srm_console
*/
if (srmcons_output & 2)
srmcons_output = 0;
}
#ifdef CONFIG_MAGIC_SYSRQ
......@@ -688,6 +660,15 @@ setup_arch(char **cmdline_p)
paging_init();
}
void __init
disable_early_printk(void)
{
if (alpha_using_srm && srmcons_output) {
unregister_srm_console();
srmcons_output = 0;
}
}
static char sys_unknown[] = "Unknown";
static char systype_names[][16] = {
"0",
......
arch/alpha/kernel/smp.c
View file @ 518a829f
......@@ -544,9 +544,6 @@ smp_prepare_cpus(unsigned int max_cpus)
smp_tune_scheduling(boot_cpuid);
smp_setup_percpu_timer(boot_cpuid);
/* We have already have the boot CPU online.. */
set_bit(boot_cpuid, &cpu_online_map);
/* Nothing to do on a UP box, or when told not to. */
if (smp_num_probed == 1 || max_cpus == 0) {
cpu_present_mask = 1UL << boot_cpuid;
......@@ -574,7 +571,11 @@ smp_prepare_cpus(unsigned int max_cpus)
void __devinit
smp_prepare_boot_cpu(void)
{
/*
* Mark the boot cpu (current cpu) as both present and online
*/
set_bit(smp_processor_id(), &cpu_present_mask);
set_bit(smp_processor_id(), &cpu_online_map);
}
int __devinit
......
arch/alpha/kernel/srmcons.c 0 → 100644
View file @ 518a829f
/*
* linux/arch/alpha/kernel/srmcons.c
*
* Callback based driver for SRM Console console device.
* (TTY driver and console driver)
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <asm/console.h>
#include <asm/uaccess.h>
static spinlock_t srmcons_callback_lock = SPIN_LOCK_UNLOCKED;
static int srm_is_registered_console = 0;
/*
* The TTY driver
*/
#define MAX_SRM_CONSOLE_DEVICES 1 /* only support 1 console device */
static int srmcons_refcount;
static struct tty_struct *srmcons_table[MAX_SRM_CONSOLE_DEVICES];
static struct termios *srmcons_termios[MAX_SRM_CONSOLE_DEVICES];
static struct termios *srmcons_termios_locked[MAX_SRM_CONSOLE_DEVICES];
struct srmcons_private {
struct tty_struct *tty;
struct timer_list timer;
spinlock_t lock;
};
typedef union _srmcons_result {
struct {
unsigned long c :61;
unsigned long status :3;
} bits;
long as_long;
} srmcons_result;
/* called with callback_lock held */
static int
srmcons_do_receive_chars(struct tty_struct *tty)
{
srmcons_result result;
int count = 0, loops = 0;
do {
result.as_long = callback_getc(0);
if (result.bits.status < 2) {
tty_insert_flip_char(tty, (char)result.bits.c, 0);
count++;
}
} while((result.bits.status & 1) && (++loops < 10));
if (count)
tty_schedule_flip(tty);
return count;
}
static void
srmcons_receive_chars(unsigned long data)
{
struct srmcons_private *srmconsp = (struct srmcons_private *)data;
unsigned long flags;
int incr = 10;
local_irq_save(flags);
if (spin_trylock(&srmcons_callback_lock)) {
if (!srmcons_do_receive_chars(srmconsp->tty))
incr = 100;
spin_unlock(&srmcons_callback_lock);
}
spin_lock(&srmconsp->lock);
if (srmconsp->tty) {
srmconsp->timer.expires = jiffies + incr;
add_timer(&srmconsp->timer);
}
spin_unlock(&srmconsp->lock);
local_irq_restore(flags);
}
/* called with callback_lock held */
static int
srmcons_do_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
unsigned char *str_cr = "\r";
long c, remaining = count;
srmcons_result result;
unsigned char *cur;
int need_cr;
for (cur = (unsigned char *)buf; remaining > 0; ) {
need_cr = 0;
/*
* Break it up into reasonable size chunks to allow a chance
* for input to get in
*/
for (c = 0; c < min_t(long, 128L, remaining) && !need_cr; c++)
if (cur[c] == '\n')
need_cr = 1;
while (c > 0) {
result.as_long = callback_puts(0, cur, c);
c -= result.bits.c;
remaining -= result.bits.c;
cur += result.bits.c;
/*
* Check for pending input iff a tty was provided
*/
if (tty)
srmcons_do_receive_chars(tty);
}
while (need_cr) {
result.as_long = callback_puts(0, str_cr, 1);
if (result.bits.c > 0)
need_cr = 0;
}
}
return count;
}
static int
srmcons_write(struct tty_struct *tty, int from_user,
const unsigned char *buf, int count)
{
unsigned long flags;
if (from_user) {
unsigned char tmp[512];
int ret = 0;
size_t c;
while ((c = count) > 0) {
if (c > sizeof(tmp))
c = sizeof(tmp);
c -= copy_from_user(tmp, buf, c);
if (!c) {
printk("%s: EFAULT (count %d)\n",
__FUNCTION__, count);
return -EFAULT;
}
spin_lock_irqsave(&srmcons_callback_lock, flags);
srmcons_do_write(tty, tmp, c);
spin_unlock_irqrestore(&srmcons_callback_lock, flags);
buf += c;
count -= c;
ret += c;
}
return ret;
}
spin_lock_irqsave(&srmcons_callback_lock, flags);
srmcons_do_write(tty, buf, count);
spin_unlock_irqrestore(&srmcons_callback_lock, flags);
return count;
}
static int
srmcons_write_room(struct tty_struct *tty)
{
return 512;
}
static int
srmcons_chars_in_buffer(struct tty_struct *tty)
{
return 0;
}
static int
srmcons_get_private_struct(struct srmcons_private **ps)
{
static struct srmcons_private *srmconsp = NULL;
static spinlock_t srmconsp_lock = SPIN_LOCK_UNLOCKED;
unsigned long flags;
int retval = 0;
spin_lock_irqsave(&srmconsp_lock, flags);
do {
if (srmconsp != NULL) {
*ps = srmconsp;
break;
}
srmconsp = kmalloc(sizeof(*srmconsp), GFP_KERNEL);
if (srmconsp == NULL) {
retval = -ENOMEM;
break;
}
srmconsp->tty = NULL;
srmconsp->lock = SPIN_LOCK_UNLOCKED;
init_timer(&srmconsp->timer);
*ps = srmconsp;
} while(0);
spin_unlock_irqrestore(&srmconsp_lock, flags);
return retval;
}
static int
srmcons_open(struct tty_struct *tty, struct file *filp)
{
struct srmcons_private *srmconsp;
unsigned long flags;
int retval;
retval = srmcons_get_private_struct(&srmconsp);
if (retval)
return retval;
spin_lock_irqsave(&srmconsp->lock, flags);
if (!srmconsp->tty) {
tty->driver_data = srmconsp;
srmconsp->tty = tty;
srmconsp->timer.function = srmcons_receive_chars;
srmconsp->timer.data = (unsigned long)srmconsp;
srmconsp->timer.expires = jiffies + 10;
add_timer(&srmconsp->timer);
}
spin_unlock_irqrestore(&srmconsp->lock, flags);
return 0;
}
static void
srmcons_close(struct tty_struct *tty, struct file *filp)
{
struct srmcons_private *srmconsp = tty->driver_data;
unsigned long flags;
spin_lock_irqsave(&srmconsp->lock, flags);
if (tty->count == 1) {
srmconsp->tty = NULL;
del_timer(&srmconsp->timer);
}
spin_unlock_irqrestore(&srmconsp->lock, flags);
}
static struct tty_driver srmcons_driver = {
.driver_name = "srm",
.name = "srm",
.magic = TTY_DRIVER_MAGIC,
.major = 0, /* dynamic */
.minor_start = 0,
.num = MAX_SRM_CONSOLE_DEVICES,
.type = TTY_DRIVER_TYPE_SYSTEM,
.subtype = SYSTEM_TYPE_SYSCONS,
.table = srmcons_table,
.termios = srmcons_termios,
.termios_locked = srmcons_termios_locked,
.refcount = &srmcons_refcount,
.open = srmcons_open,
.close = srmcons_close,
.write = srmcons_write,
.write_room = srmcons_write_room,
.chars_in_buffer= srmcons_chars_in_buffer,
};
static int __init
srmcons_init(void)
{
if (srm_is_registered_console) {
srmcons_driver.init_termios = tty_std_termios;
return tty_register_driver(&srmcons_driver);
}
return -ENODEV;
}
module_init(srmcons_init);
/*
* The console driver
*/
static void
srm_console_write(struct console *co, const char *s, unsigned count)
{
unsigned long flags;
spin_lock_irqsave(&srmcons_callback_lock, flags);
srmcons_do_write(NULL, s, count);
spin_unlock_irqrestore(&srmcons_callback_lock, flags);
}
static kdev_t
srm_console_device(struct console *co)
{
return mk_kdev(srmcons_driver.major,
srmcons_driver.minor_start + co->index);
}
static int __init
srm_console_setup(struct console *co, char *options)
{
return 0;
}
static struct console srmcons = {
.name = "srm",
.write = srm_console_write,
.device = srm_console_device,
.setup = srm_console_setup,
.flags = CON_PRINTBUFFER,
.index = -1,
};
void __init
register_srm_console(void)
{
if (!srm_is_registered_console) {
callback_open_console();
register_console(&srmcons);
srm_is_registered_console = 1;
}
}
void __init
unregister_srm_console(void)
{
if (srm_is_registered_console) {
callback_close_console();
unregister_console(&srmcons);
srm_is_registered_console = 0;
}
}
arch/alpha/kernel/sys_nautilus.c
View file @ 518a829f
......@@ -31,6 +31,7 @@
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/reboot.h>
#include <linux/bootmem.h>
#include <asm/ptrace.h>
#include <asm/system.h>
......@@ -163,7 +164,7 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr,
}
printk(KERN_CRIT "NAUTILUS Machine check 0x%lx "
"[%s System Machine Check (NMI)]\n",
"[%s System Machine Check (NMI)]\n",
vector, mchk_class);
naut_sys_machine_check(vector, la_ptr, regs);
......@@ -174,6 +175,70 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr,
mb();
}
extern void free_reserved_mem(void *, void *);
void __init
nautilus_init_pci(void)
{
struct pci_controller *hose = hose_head;
struct pci_bus *bus;
struct pci_dev *irongate;
unsigned long saved_io_start, saved_io_end;
unsigned long saved_mem_start, saved_mem_end;
unsigned long bus_align, bus_size, pci_mem;
unsigned long memtop = max_low_pfn << PAGE_SHIFT;
/* Scan our single hose. */
bus = pci_scan_bus(0, alpha_mv.pci_ops, hose);
hose->bus = bus;
hose->last_busno = bus->subordinate;
/* We're going to size the root bus, so we must
- have a non-NULL PCI device associated with the bus
- preserve hose resources. */
irongate = pci_find_slot(0, 0);
bus->self = irongate;
saved_io_start = bus->resource[0]->start;
saved_io_end = bus->resource[0]->end;
saved_mem_start = bus->resource[1]->start;
saved_mem_end = bus->resource[1]->end;
pci_bus_size_bridges(bus);
/* Don't care about IO. */
bus->resource[0]->start = saved_io_start;
bus->resource[0]->end = saved_io_end;
bus_align = bus->resource[1]->start;
bus_size = bus->resource[1]->end + 1 - bus_align;
/* Align to 16Mb. */
if (bus_align < 0x1000000UL)
bus_align = 0x1000000UL;
/* Restore hose MEM resource. */
bus->resource[1]->start = saved_mem_start;
bus->resource[1]->end = saved_mem_end;
pci_mem = (0x100000000UL - bus_size) & -bus_align;
if (pci_mem < memtop && pci_mem > alpha_mv.min_mem_address) {
free_reserved_mem(__va(alpha_mv.min_mem_address),
__va(pci_mem));
printk("nautilus_init_arch: %ldk freed\n",
(pci_mem - alpha_mv.min_mem_address) >> 10);
}
alpha_mv.min_mem_address = pci_mem;
if ((IRONGATE0->dev_vendor >> 16) > 0x7006) /* Albacore? */
IRONGATE0->pci_mem = pci_mem;
pci_bus_assign_resources(bus);
/* To break the loop in common_swizzle() */
bus->self = NULL;
pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq);
}
/*
* The System Vectors
......@@ -196,7 +261,7 @@ struct alpha_machine_vector nautilus_mv __initmv = {
.init_arch = irongate_init_arch,
.init_irq = nautilus_init_irq,
.init_rtc = common_init_rtc,
.init_pci = common_init_pci,
.init_pci = nautilus_init_pci,
.kill_arch = nautilus_kill_arch,
.pci_map_irq = nautilus_map_irq,
.pci_swizzle = common_swizzle,
......
arch/alpha/kernel/time.c
View file @ 518a829f
......@@ -44,6 +44,7 @@
#include <asm/hwrpb.h>
#include <linux/mc146818rtc.h>
#include <linux/time.h>
#include <linux/timex.h>
#include "proto.h"
......@@ -51,7 +52,6 @@
u64 jiffies_64;
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies; /* kernel/timer.c */
static int set_rtc_mmss(unsigned long);
......@@ -106,7 +106,7 @@ void timer_interrupt(int irq, void *dev, struct pt_regs * regs)
alpha_do_profile(regs->pc);
#endif
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
/*
* Calculate how many ticks have passed since the last update,
......@@ -138,7 +138,7 @@ void timer_interrupt(int irq, void *dev, struct pt_regs * regs)
state.last_rtc_update = xtime.tv_sec - (tmp ? 600 : 0);
}
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
void
......@@ -383,21 +383,6 @@ time_init(void)
/* Startup the timer source. */
alpha_mv.init_rtc();
/*
* If we had wanted SRM console printk echoing early, undo it now.
*
* "srmcons" specified in the boot command arguments allows us to
* see kernel messages during the period of time before the true
* console device is "registered" during console_init(). As of this
* version (2.4.10), time_init() is the last Alpha-specific code
* called before console_init(), so we put this "unregister" code
* here to prevent schizophrenic console behavior later... ;-}
*/
if (alpha_using_srm && srmcons_output) {
unregister_srm_console();
srmcons_output = 0;
}
}
/*
......@@ -410,18 +395,20 @@ time_init(void)
void
do_gettimeofday(struct timeval *tv)
{
unsigned long sec, usec, lost, flags;
unsigned long flags;
unsigned long sec, usec, lost, seq;
unsigned long delta_cycles, delta_usec, partial_tick;
read_lock_irqsave(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
delta_cycles = rpcc() - state.last_time;
sec = xtime.tv_sec;
usec = (xtime.tv_nsec / 1000);
partial_tick = state.partial_tick;
lost = jiffies - wall_jiffies;
delta_cycles = rpcc() - state.last_time;
sec = xtime.tv_sec;
usec = (xtime.tv_nsec / 1000);
partial_tick = state.partial_tick;
lost = jiffies - wall_jiffies;
read_unlock_irqrestore(&xtime_lock, flags);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
#ifdef CONFIG_SMP
/* Until and unless we figure out how to get cpu cycle counters
......@@ -463,7 +450,7 @@ do_settimeofday(struct timeval *tv)
unsigned long delta_usec;
long sec, usec;
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* The offset that is added into time in do_gettimeofday above
must be subtracted out here to keep a coherent view of the
......@@ -494,7 +481,7 @@ do_settimeofday(struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
......
arch/arm/kernel/time.c
View file @ 518a829f
......@@ -34,7 +34,6 @@
u64 jiffies_64;
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies;
/* this needs a better home */
......@@ -148,18 +147,20 @@ static void do_leds(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec, lost;
read_lock_irqsave(&xtime_lock, flags);
usec = gettimeoffset();
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = gettimeoffset();
lost = jiffies - wall_jiffies;
if (lost)
usec += lost * USECS_PER_JIFFY;
lost = jiffies - wall_jiffies;
if (lost)
usec += lost * USECS_PER_JIFFY;
sec = xtime.tv_sec;
usec += xtime.tv_nsec / 1000;
read_unlock_irqrestore(&xtime_lock, flags);
sec = xtime.tv_sec;
usec += xtime.tv_nsec / 1000;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
/* usec may have gone up a lot: be safe */
while (usec >= 1000000) {
......@@ -173,7 +174,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
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
......@@ -194,7 +195,7 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
static struct irqaction timer_irq = {
......
arch/i386/Kconfig
View file @ 518a829f
......@@ -983,6 +983,17 @@ config CPU_FREQ_24_API
If in doubt, say N.
config X86_ACPI_CPUFREQ
tristate "ACPI Processor P-States driver"
depends on CPU_FREQ && ACPI_PROCESSOR
help
This driver adds a CPUFreq driver which utilizes the ACPI
Processor Performance States.
For details, take a look at linux/Documentation/cpufreq.
If in doubt, say N.
config X86_POWERNOW_K6
tristate "AMD Mobile K6-2/K6-3 PowerNow!"
depends on CPU_FREQ
......
arch/i386/kernel/acpi.c
View file @ 518a829f
......@@ -303,8 +303,7 @@ acpi_find_rsdp (void)
int __init
acpi_boot_init (
char *cmdline)
acpi_boot_init (void)
{
int result = 0;
......@@ -317,7 +316,7 @@ acpi_boot_init (
/*
* Initialize the ACPI boot-time table parser.
*/
result = acpi_table_init(cmdline);
result = acpi_table_init();
if (result)
return result;
......@@ -454,6 +453,7 @@ acpi_boot_init (
/* address in low memory of the wakeup routine. */
unsigned long acpi_wakeup_address = 0;
unsigned long acpi_video_flags;
extern char wakeup_start, wakeup_end;
extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long));
......@@ -520,4 +520,20 @@ void __init acpi_reserve_bootmem(void)
printk(KERN_DEBUG "ACPI: have wakeup address 0x%8.8lx\n", acpi_wakeup_address);
}
static int __init acpi_sleep_setup(char *str)
{
while ((str != NULL) && (*str != '\0')) {
if (strncmp(str, "s3_bios", 7) == 0)
acpi_video_flags = 1;
if (strncmp(str, "s3_mode", 7) == 0)
acpi_video_flags |= 2;
str = strchr(str, ',');
if (str != NULL)
str += strspn(str, ", \t");
}
return 1;
}
__setup("acpi_sleep=", acpi_sleep_setup);
#endif /*CONFIG_ACPI_SLEEP*/
arch/i386/kernel/acpi_wakeup.S
View file @ 518a829f
......@@ -41,20 +41,19 @@ wakeup_code:
cmpl $0x12345678, %eax
jne bogus_real_magic
#if 1
testl $1, video_flags - wakeup_code
jz 1f
lcall $0xc000,$3
#endif
#if 0
1:
testl $2, video_flags - wakeup_code
jz 1f
mov video_mode - wakeup_code, %ax
call mode_set
#endif
1:
# set up page table
#if 1
movl $swapper_pg_dir-__PAGE_OFFSET, %eax
#else
movl (real_save_cr3 - wakeup_data), %eax
#endif
movl %eax, %cr3
# make sure %cr4 is set correctly (features, etc)
......@@ -86,6 +85,7 @@ real_save_cr3: .long 0
real_save_cr4: .long 0
real_magic: .long 0
video_mode: .long 0
video_flags: .long 0
bogus_real_magic:
movw $0x0e00 + 'B', %fs:(0x12)
......@@ -254,6 +254,8 @@ ENTRY(acpi_copy_wakeup_routine)
movl saved_videomode, %edx
movl %edx, video_mode - wakeup_start (%eax)
movl acpi_video_flags, %edx
movl %edx, video_flags - wakeup_start (%eax)
movl $0x12345678, real_magic - wakeup_start (%eax)
movl $0x12345678, saved_magic
ret
......
arch/i386/kernel/apm.c
View file @ 518a829f
......@@ -215,6 +215,7 @@
#include <linux/miscdevice.h>
#include <linux/apm_bios.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/sched.h>
#include <linux/pm.h>
#include <linux/kernel.h>
......@@ -227,7 +228,6 @@
#include <linux/sysrq.h>
extern rwlock_t xtime_lock;
extern spinlock_t i8253_lock;
extern unsigned long get_cmos_time(void);
extern void machine_real_restart(unsigned char *, int);
......@@ -1264,7 +1264,7 @@ static int suspend(int vetoable)
printk(KERN_CRIT "apm: suspend was vetoed, but suspending anyway.\n");
}
/* serialize with the timer interrupt */
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* protect against access to timer chip registers */
spin_lock(&i8253_lock);
......@@ -1276,7 +1276,7 @@ static int suspend(int vetoable)
ignore_normal_resume = 1;
spin_unlock(&i8253_lock);
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
if (err == APM_NO_ERROR)
err = APM_SUCCESS;
......@@ -1301,10 +1301,10 @@ static void standby(void)
int err;
/* serialize with the timer interrupt */
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* If needed, notify drivers here */
get_time_diff();
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
err = set_system_power_state(APM_STATE_STANDBY);
if ((err != APM_SUCCESS) && (err != APM_NO_ERROR))
......@@ -1393,9 +1393,9 @@ static void check_events(void)
ignore_bounce = 1;
if ((event != APM_NORMAL_RESUME)
|| (ignore_normal_resume == 0)) {
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
set_time();
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
pm_send_all(PM_RESUME, (void *)0);
queue_event(event, NULL);
}
......@@ -1410,9 +1410,9 @@ static void check_events(void)
break;
case APM_UPDATE_TIME:
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
set_time();
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
break;
case APM_CRITICAL_SUSPEND:
......
arch/i386/kernel/cpu/cpufreq/Makefile
View file @ 518a829f
......@@ -5,3 +5,10 @@ obj-$(CONFIG_X86_P4_CLOCKMOD) += p4-clockmod.o
obj-$(CONFIG_ELAN_CPUFREQ) += elanfreq.o
obj-$(CONFIG_X86_LONGRUN) += longrun.o
obj-$(CONFIG_X86_GX_SUSPMOD) += gx-suspmod.o
obj-$(CONFIG_X86_ACPI_CPUFREQ) += acpi.o
ifdef CONFIG_X86_ACPI_CPUFREQ
ifdef CONFIG_ACPI_DEBUG
EXTRA_CFLAGS += -DACPI_DEBUG_OUTPUT
endif
endif
arch/i386/kernel/cpu/cpufreq/acpi.c 0 → 100644
View file @ 518a829f
This diff is collapsed.
arch/i386/kernel/i386_ksyms.c
View file @ 518a829f
......@@ -15,6 +15,7 @@
#include <linux/string.h>
#include <linux/tty.h>
#include <linux/highmem.h>
#include <linux/time.h>
#include <asm/semaphore.h>
#include <asm/processor.h>
......
arch/i386/kernel/setup.c
View file @ 518a829f
......@@ -900,7 +900,7 @@ void __init setup_arch(char **cmdline_p)
* Parse the ACPI tables for possible boot-time SMP configuration.
*/
if (!acpi_disabled)
acpi_boot_init(*cmdline_p);
acpi_boot_init();
#endif
#ifdef CONFIG_X86_LOCAL_APIC
if (smp_found_config)
......
arch/i386/kernel/time.c
View file @ 518a829f
......@@ -70,7 +70,6 @@ u64 jiffies_64;
unsigned long cpu_khz; /* Detected as we calibrate the TSC */
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies;
spinlock_t rtc_lock = SPIN_LOCK_UNLOCKED;
......@@ -87,19 +86,21 @@ struct timer_opts* timer = &timer_none;
*/
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec;
read_lock_irqsave(&xtime_lock, flags);
usec = timer->get_offset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin(&xtime_lock);
usec = timer->get_offset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
} while (read_seqretry(&xtime_lock, seq));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -112,7 +113,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
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
......@@ -133,7 +134,7 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
/*
......@@ -314,14 +315,14 @@ void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
* the irq version of write_lock because as just said we have irq
* locally disabled. -arca
*/
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
detect_lost_tick();
timer->mark_offset();
do_timer_interrupt(irq, NULL, regs);
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
......
arch/i386/kernel/timers/timer_pit.c
View file @ 518a829f
......@@ -76,7 +76,7 @@ static void delay_pit(unsigned long loops)
static unsigned long get_offset_pit(void)
{
int count;
unsigned long flags;
static int count_p = LATCH; /* for the first call after boot */
static unsigned long jiffies_p = 0;
......@@ -85,8 +85,7 @@ static unsigned long get_offset_pit(void)
*/
unsigned long jiffies_t;
/* gets recalled with irq locally disabled */
spin_lock(&i8253_lock);
spin_lock_irqsave(&i8253_lock, flags);
/* timer count may underflow right here */
outb_p(0x00, 0x43); /* latch the count ASAP */
......@@ -108,7 +107,7 @@ static unsigned long get_offset_pit(void)
count = LATCH - 1;
}
spin_unlock(&i8253_lock);
spin_unlock_irqrestore(&i8253_lock, flags);
/*
* avoiding timer inconsistencies (they are rare, but they happen)...
......
arch/ia64/kernel/time.c
View file @ 518a829f
......@@ -24,7 +24,6 @@
#include <asm/sal.h>
#include <asm/system.h>
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies;
extern unsigned long last_time_offset;
......@@ -89,7 +88,7 @@ gettimeoffset (void)
void
do_settimeofday (struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
{
/*
* This is revolting. We need to set "xtime" correctly. However, the value
......@@ -112,21 +111,21 @@ do_settimeofday (struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
}
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
void
do_gettimeofday (struct timeval *tv)
{
unsigned long flags, usec, sec, old;
unsigned long seq, usec, sec, old;
read_lock_irqsave(&xtime_lock, flags);
{
do {
seq = read_seqbegin(&xtime_lock);
usec = gettimeoffset();
/*
* Ensure time never goes backwards, even when ITC on different CPUs are
* not perfectly synchronized.
* Ensure time never goes backwards, even when ITC on
* different CPUs are not perfectly synchronized.
*/
do {
old = last_time_offset;
......@@ -138,8 +137,8 @@ do_gettimeofday (struct timeval *tv)
sec = xtime.tv_sec;
usec += xtime.tv_nsec / 1000;
}
read_unlock_irqrestore(&xtime_lock, flags);
} while (read_seqend(&xtime_lock, seq));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -182,10 +181,10 @@ timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
* another CPU. We need to avoid to SMP race by acquiring the
* xtime_lock.
*/
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
do_timer(regs);
local_cpu_data->itm_next = new_itm;
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
} else
local_cpu_data->itm_next = new_itm;
......
arch/m68k/kernel/time.c
View file @ 518a829f
......@@ -22,6 +22,7 @@
#include <asm/machdep.h>
#include <asm/io.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/profile.h>
......@@ -129,25 +130,27 @@ void time_init(void)
mach_sched_init(timer_interrupt);
}
extern rwlock_t xtime_lock;
/*
* This version of gettimeofday has near microsecond resolution.
*/
void do_gettimeofday(struct timeval *tv)
{
extern unsigned long wall_jiffies;
unsigned long flags;
extern unsigned long wall_jiffies;
unsigned long seq;
unsigned long usec, sec, lost;
read_lock_irqsave(&xtime_lock, flags);
usec = mach_gettimeoffset();
lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000/HZ);
sec = xtime.tv_sec;
usec += xtime.tv_nsec/1000;
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = mach_gettimeoffset();
lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000/HZ);
sec = xtime.tv_sec;
usec += xtime.tv_nsec/1000;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -162,7 +165,7 @@ void do_settimeofday(struct timeval *tv)
{
extern unsigned long wall_jiffies;
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* This is revolting. We need to set the xtime.tv_nsec
* correctly. However, the value in this location is
* is value at the last tick.
......@@ -183,5 +186,5 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
arch/m68knommu/kernel/time.c
View file @ 518a829f
......@@ -18,6 +18,7 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/profile.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <asm/machdep.h>
......@@ -126,21 +127,23 @@ void time_init(void)
mach_sched_init(timer_interrupt);
}
extern rwlock_t xtime_lock;
/*
* This version of gettimeofday has near microsecond resolution.
*/
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec;
read_lock_irqsave(&xtime_lock, flags);
usec = mach_gettimeoffset ? mach_gettimeoffset() : 0;
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = mach_gettimeoffset ? mach_gettimeoffset() : 0;
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -153,7 +156,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec
* correctly. However, the value in this location is
* is value at the last tick.
......@@ -174,5 +177,5 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
arch/mips/au1000/common/time.c
View file @ 518a829f
......@@ -27,6 +27,7 @@
#include <linux/config.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/time.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
......@@ -44,7 +45,6 @@ unsigned long uart_baud_base;
static unsigned long r4k_offset; /* Amount to increment compare reg each time */
static unsigned long r4k_cur; /* What counter should be at next timer irq */
extern rwlock_t xtime_lock;
#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5)
......@@ -150,10 +150,10 @@ void __init time_init(void)
set_cp0_status(ALLINTS);
/* Read time from the RTC chipset. */
write_lock_irqsave (&xtime_lock, flags);
write_seqlock_irqsave (&xtime_lock, flags);
xtime.tv_sec = get_mips_time();
xtime.tv_usec = 0;
write_unlock_irqrestore(&xtime_lock, flags);
write_sequnlock_irqrestore(&xtime_lock, flags);
}
/* This is for machines which generate the exact clock. */
......@@ -229,20 +229,24 @@ static unsigned long do_fast_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned int flags;
unsigned long flags;
unsigned long seq;
read_lock_irqsave (&xtime_lock, flags);
*tv = xtime;
tv->tv_usec += do_fast_gettimeoffset();
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
/*
* xtime is atomically updated in timer_bh. jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
*tv = xtime;
tv->tv_usec += do_fast_gettimeoffset();
/*
* xtime is atomically updated in timer_bh. jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
read_unlock_irqrestore (&xtime_lock, flags);
if (tv->tv_usec >= 1000000) {
tv->tv_usec -= 1000000;
......@@ -252,7 +256,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq (&xtime_lock);
write_seqlock_irq (&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec correctly.
* However, the value in this location is is value at the last tick.
......@@ -272,7 +276,7 @@ void do_settimeofday(struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq (&xtime_lock);
write_sequnlock_irq (&xtime_lock);
}
/*
......
arch/mips/baget/time.c
View file @ 518a829f
......@@ -11,6 +11,7 @@
#include <linux/param.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/time.h>
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <linux/spinlock.h>
......@@ -23,8 +24,6 @@
#include <asm/baget/baget.h>
extern rwlock_t xtime_lock;
/*
* To have precision clock, we need to fix available clock frequency
*/
......@@ -79,20 +78,21 @@ void __init time_init(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
read_lock_irqsave (&xtime_lock, flags);
*tv = xtime;
read_unlock_irqrestore (&xtime_lock, flags);
do {
seq = read_seqbegin(&xtime_lock);
*tv = xtime;
} while (read_seqretry(&xtime_lock, seq));
}
void do_settimeofday(struct timeval *tv)
{
write_lock_irq (&xtime_lock);
write_seqlock_irq (&xtime_lock);
xtime = *tv;
time_adjust = 0; /* stop active adjtime() */
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq (&xtime_lock);
write_sequnlock_irq (&xtime_lock);
}
arch/mips/dec/time.c
View file @ 518a829f
......@@ -15,6 +15,7 @@
#include <linux/param.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/time.h>
#include <linux/interrupt.h>
#include <linux/bcd.h>
......@@ -35,7 +36,6 @@
extern void (*board_time_init)(struct irqaction *irq);
extern volatile unsigned long wall_jiffies;
extern rwlock_t xtime_lock;
/*
* Change this if you have some constant time drift
......@@ -211,19 +211,22 @@ static unsigned long (*do_gettimeoffset) (void) = do_slow_gettimeoffset;
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
read_lock_irqsave(&xtime_lock, flags);
*tv = xtime;
tv->tv_usec += do_gettimeoffset();
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
*tv = xtime;
tv->tv_usec += do_gettimeoffset();
/*
* xtime is atomically updated in timer_bh. jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
/*
* xtime is atomically updated in timer_bh. jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
read_unlock_irqrestore(&xtime_lock, flags);
if (tv->tv_usec >= 1000000) {
tv->tv_usec -= 1000000;
......@@ -233,7 +236,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec
* correctly. However, the value in this location is
......@@ -254,7 +257,7 @@ void do_settimeofday(struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
/*
......@@ -330,6 +333,7 @@ static inline void
timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
volatile unsigned char dummy;
unsigned long seq;
dummy = CMOS_READ(RTC_REG_C); /* ACK RTC Interrupt */
......@@ -357,23 +361,27 @@ timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
* CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
* called as close as possible to 500 ms before the new second starts.
*/
read_lock(&xtime_lock);
if ((time_status & STA_UNSYNC) == 0
&& xtime.tv_sec > last_rtc_update + 660
&& xtime.tv_usec >= 500000 - tick / 2
&& xtime.tv_usec <= 500000 + tick / 2) {
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
}
do {
seq = read_seqbegin(&xtime_lock);
if ((time_status & STA_UNSYNC) == 0
&& xtime.tv_sec > last_rtc_update + 660
&& xtime.tv_usec >= 500000 - tick / 2
&& xtime.tv_usec <= 500000 + tick / 2) {
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
}
} while (read_seqretry(&xtime_lock, seq));
/* As we return to user mode fire off the other CPU schedulers.. this is
basically because we don't yet share IRQ's around. This message is
rigged to be safe on the 386 - basically it's a hack, so don't look
closely for now.. */
/*smp_message_pass(MSG_ALL_BUT_SELF, MSG_RESCHEDULE, 0L, 0); */
read_unlock(&xtime_lock);
}
static void r4k_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
......@@ -470,10 +478,10 @@ void __init time_init(void)
real_year = CMOS_READ(RTC_DEC_YEAR);
year += real_year - 72 + 2000;
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
xtime.tv_usec = 0;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
if (mips_cpu.options & MIPS_CPU_COUNTER) {
write_32bit_cp0_register(CP0_COUNT, 0);
......
arch/mips/ite-boards/generic/time.c
View file @ 518a829f
......@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/spinlock.h>
#include <asm/mipsregs.h>
......@@ -38,7 +39,6 @@
extern void enable_cpu_timer(void);
extern volatile unsigned long wall_jiffies;
extern rwlock_t xtime_lock;
unsigned long missed_heart_beats = 0;
static long last_rtc_update = 0;
......@@ -119,6 +119,8 @@ static int set_rtc_mmss(unsigned long nowtime)
*/
void mips_timer_interrupt(struct pt_regs *regs)
{
unsigned long seq;
if (r4k_offset == 0)
goto null;
......@@ -133,18 +135,22 @@ void mips_timer_interrupt(struct pt_regs *regs)
* within 500ms before the * next second starts,
* thus the following code.
*/
read_lock(&xtime_lock);
if ((time_status & STA_UNSYNC) == 0
&& xtime.tv_sec > last_rtc_update + 660
&& xtime.tv_usec >= 500000 - (tick >> 1)
&& xtime.tv_usec <= 500000 + (tick >> 1))
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else {
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
}
read_unlock(&xtime_lock);
do {
seq = read_seqbegin(&xtime_lock);
if ((time_status & STA_UNSYNC) == 0
&& xtime.tv_sec > last_rtc_update + 660
&& xtime.tv_usec >= 500000 - (tick >> 1)
&& xtime.tv_usec <= 500000 + (tick >> 1))
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else {
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
}
} while (read_seqretry(&xtime_lock, seq));
r4k_cur += r4k_offset;
ack_r4ktimer(r4k_cur);
......@@ -247,10 +253,10 @@ void __init time_init(void)
enable_cpu_timer();
/* Read time from the RTC chipset. */
write_lock_irqsave (&xtime_lock, flags);
write_seqlock_irqsave (&xtime_lock, flags);
xtime.tv_sec = get_mips_time();
xtime.tv_usec = 0;
write_unlock_irqrestore(&xtime_lock, flags);
write_sequnlock_irqrestore(&xtime_lock, flags);
}
/* This is for machines which generate the exact clock. */
......@@ -332,20 +338,24 @@ static unsigned long do_fast_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned int flags;
unsigned long flags;
unsigned int seq;
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
read_lock_irqsave (&xtime_lock, flags);
*tv = xtime;
tv->tv_usec += do_fast_gettimeoffset();
*tv = xtime;
tv->tv_usec += do_fast_gettimeoffset();
/*
* xtime is atomically updated in timer_bh. jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
/*
* xtime is atomically updated in timer_bh.
* jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
read_unlock_irqrestore (&xtime_lock, flags);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
if (tv->tv_usec >= 1000000) {
tv->tv_usec -= 1000000;
......@@ -355,7 +365,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq (&xtime_lock);
write_seqlock_irq (&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec correctly.
* However, the value in this location is is value at the last tick.
......@@ -375,5 +385,5 @@ void do_settimeofday(struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq (&xtime_lock);
write_sequnlock_irq (&xtime_lock);
}
arch/mips/kernel/sysirix.c
View file @ 518a829f
......@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/swap.h>
#include <linux/errno.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/times.h>
#include <linux/elf.h>
......@@ -615,19 +616,17 @@ asmlinkage int irix_getgid(struct pt_regs *regs)
return current->gid;
}
extern rwlock_t xtime_lock;
asmlinkage int irix_stime(int value)
{
if (!capable(CAP_SYS_TIME))
return -EPERM;
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
xtime.tv_sec = value;
xtime.tv_usec = 0;
time_maxerror = MAXPHASE;
time_esterror = MAXPHASE;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
return 0;
}
......
arch/mips/kernel/time.c
View file @ 518a829f
......@@ -37,7 +37,6 @@ u64 jiffies_64;
/*
* forward reference
*/
extern rwlock_t xtime_lock;
extern volatile unsigned long wall_jiffies;
/*
......@@ -63,19 +62,23 @@ int (*rtc_set_time)(unsigned long) = null_rtc_set_time;
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
read_lock_irqsave (&xtime_lock, flags);
*tv = xtime;
tv->tv_usec += do_gettimeoffset();
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
/*
* xtime is atomically updated in timer_bh. jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
*tv = xtime;
tv->tv_usec += do_gettimeoffset();
/*
* xtime is atomically updated in timer_bh.
* jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
read_unlock_irqrestore (&xtime_lock, flags);
if (tv->tv_usec >= 1000000) {
tv->tv_usec -= 1000000;
......@@ -85,7 +88,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq (&xtime_lock);
write_seqlock_irq (&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec
* correctly. However, the value in this location is
......@@ -105,7 +108,7 @@ void do_settimeofday(struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq (&xtime_lock);
write_sequnlock_irq (&xtime_lock);
}
......@@ -291,6 +294,8 @@ unsigned long calibrate_div64_gettimeoffset(void)
*/
void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
unsigned long seq;
if (mips_cpu.options & MIPS_CPU_COUNTER) {
unsigned int count;
......@@ -340,19 +345,21 @@ void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
* CMOS clock accordingly every ~11 minutes. rtc_set_time() has to be
* called as close as possible to 500 ms before the new second starts.
*/
read_lock (&xtime_lock);
if ((time_status & STA_UNSYNC) == 0 &&
xtime.tv_sec > last_rtc_update + 660 &&
xtime.tv_usec >= 500000 - ((unsigned) tick) / 2 &&
xtime.tv_usec <= 500000 + ((unsigned) tick) / 2) {
if (rtc_set_time(xtime.tv_sec) == 0) {
last_rtc_update = xtime.tv_sec;
} else {
last_rtc_update = xtime.tv_sec - 600;
/* do it again in 60 s */
do {
seq = read_seqbegin(&xtime_lock);
if ((time_status & STA_UNSYNC) == 0 &&
xtime.tv_sec > last_rtc_update + 660 &&
xtime.tv_usec >= 500000 - ((unsigned) tick) / 2 &&
xtime.tv_usec <= 500000 + ((unsigned) tick) / 2) {
if (rtc_set_time(xtime.tv_sec) == 0) {
last_rtc_update = xtime.tv_sec;
} else {
last_rtc_update = xtime.tv_sec - 600;
/* do it again in 60 s */
}
}
}
read_unlock (&xtime_lock);
} while (read_seqretry(&xtime_lock, seq));
/*
* If jiffies has overflowed in this timer_interrupt we must
......
arch/mips/mips-boards/generic/time.c
View file @ 518a829f
......@@ -34,6 +34,7 @@
#include <asm/div64.h>
#include <linux/mc146818rtc.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <asm/mips-boards/generic.h>
......@@ -45,7 +46,6 @@ unsigned long missed_heart_beats = 0;
static unsigned long r4k_offset; /* Amount to increment compare reg each time */
static unsigned long r4k_cur; /* What counter should be at next timer irq */
extern rwlock_t xtime_lock;
#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5)
......@@ -133,7 +133,9 @@ static int set_rtc_mmss(unsigned long nowtime)
*/
void mips_timer_interrupt(struct pt_regs *regs)
{
unsigned long flags;
int irq = 7;
unsigned long seq;
if (r4k_offset == 0)
goto null;
......@@ -149,18 +151,21 @@ void mips_timer_interrupt(struct pt_regs *regs)
* within 500ms before the * next second starts,
* thus the following code.
*/
read_lock(&xtime_lock);
if ((time_status & STA_UNSYNC) == 0
&& xtime.tv_sec > last_rtc_update + 660
&& xtime.tv_usec >= 500000 - (tick >> 1)
&& xtime.tv_usec <= 500000 + (tick >> 1))
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
read_unlock(&xtime_lock);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
if ((time_status & STA_UNSYNC) == 0
&& xtime.tv_sec > last_rtc_update + 660
&& xtime.tv_usec >= 500000 - (tick >> 1)
&& xtime.tv_usec <= 500000 + (tick >> 1))
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
if ((timer_tick_count++ % HZ) == 0) {
mips_display_message(&display_string[display_count++]);
if (display_count == MAX_DISPLAY_COUNT)
......@@ -267,10 +272,10 @@ void __init time_init(void)
change_cp0_status(ST0_IM, ALLINTS);
/* Read time from the RTC chipset. */
write_lock_irqsave (&xtime_lock, flags);
write_seqlock_irqsave (&xtime_lock, flags);
xtime.tv_sec = get_mips_time();
xtime.tv_usec = 0;
write_unlock_irqrestore(&xtime_lock, flags);
write_sequnlock_irqrestore(&xtime_lock, flags);
}
/* This is for machines which generate the exact clock. */
......@@ -363,20 +368,24 @@ static unsigned long do_fast_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned int flags;
unsigned long flags;
unsigned long seq;
read_lock_irqsave (&xtime_lock, flags);
*tv = xtime;
tv->tv_usec += do_fast_gettimeoffset();
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
/*
* xtime is atomically updated in timer_bh. jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
*tv = xtime;
tv->tv_usec += do_fast_gettimeoffset();
/*
* xtime is atomically updated in timer_bh.
* jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
read_unlock_irqrestore (&xtime_lock, flags);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
if (tv->tv_usec >= 1000000) {
tv->tv_usec -= 1000000;
......@@ -386,7 +395,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq (&xtime_lock);
write_seqlock_irq (&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec correctly.
* However, the value in this location is is value at the last tick.
......@@ -406,5 +415,5 @@ void do_settimeofday(struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq (&xtime_lock);
write_sequnlock_irq (&xtime_lock);
}
arch/mips/philips/nino/time.c
View file @ 518a829f
......@@ -19,12 +19,12 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/delay.h>
#include <asm/tx3912.h>
extern volatile unsigned long wall_jiffies;
extern rwlock_t xtime_lock;
static struct timeval xbase;
......@@ -62,29 +62,31 @@ void inline readRTC(unsigned long *high, unsigned long *low)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long high, low;
read_lock_irqsave(&xtime_lock, flags);
// 40 bit RTC, driven by 32khz source:
// +-----------+-----------------------------------------+
// | HHHH.HHHH | LLLL.LLLL.LLLL.LLLL.LMMM.MMMM.MMMM.MMMM |
// +-----------+-----------------------------------------+
readRTC(&high,&low);
tv->tv_sec = (high << 17) | (low >> 15);
tv->tv_usec = (low % 32768) * 1953 / 64;
tv->tv_sec += xbase.tv_sec;
tv->tv_usec += xbase.tv_usec;
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
tv->tv_usec += do_gettimeoffset();
// 40 bit RTC, driven by 32khz source:
// +-----------+-----------------------------------------+
// | HHHH.HHHH | LLLL.LLLL.LLLL.LLLL.LMMM.MMMM.MMMM.MMMM |
// +-----------+-----------------------------------------+
readRTC(&high,&low);
tv->tv_sec = (high << 17) | (low >> 15);
tv->tv_usec = (low % 32768) * 1953 / 64;
tv->tv_sec += xbase.tv_sec;
tv->tv_usec += xbase.tv_usec;
/*
* xtime is atomically updated in timer_bh. lost_ticks is
* nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
tv->tv_usec += do_gettimeoffset();
read_unlock_irqrestore(&xtime_lock, flags);
/*
* xtime is atomically updated in timer_bh. lost_ticks is
* nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
if (tv->tv_usec >= 1000000) {
tv->tv_usec -= 1000000;
......@@ -94,7 +96,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec
* correctly. However, the value in this location is
* is value at the last tick.
......@@ -118,7 +120,7 @@ void do_settimeofday(struct timeval *tv)
time_state = TIME_BAD;
time_maxerror = MAXPHASE;
time_esterror = MAXPHASE;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
static int set_rtc_mmss(unsigned long nowtime)
......
arch/mips64/mips-boards/generic/time.c
View file @ 518a829f
......@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/spinlock.h>
#include <asm/mipsregs.h>
......@@ -44,7 +45,6 @@ unsigned long missed_heart_beats = 0;
static unsigned long r4k_offset; /* Amount to increment compare reg each time */
static unsigned long r4k_cur; /* What counter should be at next timer irq */
extern rwlock_t xtime_lock;
#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5)
......@@ -132,6 +132,8 @@ static int set_rtc_mmss(unsigned long nowtime)
*/
void mips_timer_interrupt(struct pt_regs *regs)
{
unsigned long flags;
unsigned long seq;
int irq = 7;
if (r4k_offset == 0)
......@@ -148,17 +150,20 @@ void mips_timer_interrupt(struct pt_regs *regs)
* within 500ms before the * next second starts,
* thus the following code.
*/
read_lock(&xtime_lock);
if ((time_status & STA_UNSYNC) == 0
&& xtime.tv_sec > last_rtc_update + 660
&& xtime.tv_usec >= 500000 - (tick >> 1)
&& xtime.tv_usec <= 500000 + (tick >> 1))
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
read_unlock(&xtime_lock);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
if ((time_status & STA_UNSYNC) == 0
&& xtime.tv_sec > last_rtc_update + 660
&& xtime.tv_usec >= 500000 - (tick >> 1)
&& xtime.tv_usec <= 500000 + (tick >> 1))
if (set_rtc_mmss(xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else
/* do it again in 60 s */
last_rtc_update = xtime.tv_sec - 600;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
if ((timer_tick_count++ % HZ) == 0) {
mips_display_message(&display_string[display_count++]);
......@@ -266,10 +271,10 @@ void __init time_init(void)
set_cp0_status(ST0_IM, ALLINTS);
/* Read time from the RTC chipset. */
write_lock_irqsave (&xtime_lock, flags);
write_seqlock_irqsave (&xtime_lock, flags);
xtime.tv_sec = get_mips_time();
xtime.tv_usec = 0;
write_unlock_irqrestore(&xtime_lock, flags);
write_sequnlock_irqrestore(&xtime_lock, flags);
}
/* This is for machines which generate the exact clock. */
......@@ -352,20 +357,25 @@ static unsigned long do_fast_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned int flags;
unsigned long flags;
unsigned long seq;
read_lock_irqsave (&xtime_lock, flags);
*tv = xtime;
tv->tv_usec += do_fast_gettimeoffset();
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
/*
* xtime is atomically updated in timer_bh. jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
*tv = xtime;
tv->tv_usec += do_fast_gettimeoffset();
/*
* xtime is atomically updated in timer_bh.
* jiffies - wall_jiffies
* is nonzero if the timer bottom half hasnt executed yet.
*/
if (jiffies - wall_jiffies)
tv->tv_usec += USECS_PER_JIFFY;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
read_unlock_irqrestore (&xtime_lock, flags);
if (tv->tv_usec >= 1000000) {
tv->tv_usec -= 1000000;
......@@ -375,7 +385,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq (&xtime_lock);
write_seqlock_irq (&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec correctly.
* However, the value in this location is is value at the last tick.
......@@ -395,5 +405,5 @@ void do_settimeofday(struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq (&xtime_lock);
write_sequnlock_irq (&xtime_lock);
}
arch/mips64/sgi-ip22/ip22-timer.c
View file @ 518a829f
......@@ -11,6 +11,7 @@
#include <linux/param.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/time.h>
#include <linux/interrupt.h>
#include <linux/timex.h>
#include <linux/kernel_stat.h>
......@@ -32,8 +33,6 @@
static unsigned long r4k_offset; /* Amount to increment compare reg each time */
static unsigned long r4k_cur; /* What counter should be at next timer irq */
extern rwlock_t xtime_lock;
static inline void ack_r4ktimer(unsigned long newval)
{
write_32bit_cp0_register(CP0_COMPARE, newval);
......@@ -86,7 +85,7 @@ void indy_timer_interrupt(struct pt_regs *regs)
unsigned long count;
int irq = 7;
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
/* Ack timer and compute new compare. */
count = read_32bit_cp0_register(CP0_COUNT);
/* This has races. */
......@@ -116,7 +115,7 @@ void indy_timer_interrupt(struct pt_regs *regs)
/* do it again in 60s */
last_rtc_update = xtime.tv_sec - 600;
}
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
static unsigned long dosample(volatile unsigned char *tcwp,
......@@ -224,10 +223,10 @@ void __init indy_timer_init(void)
set_cp0_status(ST0_IM, ALLINTS);
sti();
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
xtime.tv_sec = get_indy_time(); /* Read time from RTC. */
xtime.tv_usec = 0;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
void indy_8254timer_irq(void)
......@@ -243,20 +242,21 @@ void indy_8254timer_irq(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
read_lock_irqsave(&xtime_lock, flags);
*tv = xtime;
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin(&xtime_lock);
*tv = xtime;
} while (read_seqretry(&xtime_lock, seq));
}
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
xtime = *tv;
time_adjust = 0; /* stop active adjtime() */
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
arch/mips64/sgi-ip27/ip27-timer.c
View file @ 518a829f
......@@ -9,6 +9,7 @@
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
#include <linux/param.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/mm.h>
#include <linux/bcd.h>
......@@ -40,7 +41,6 @@
static unsigned long ct_cur[NR_CPUS]; /* What counter should be at next timer irq */
static long last_rtc_update; /* Last time the rtc clock got updated */
extern rwlock_t xtime_lock;
extern volatile unsigned long wall_jiffies;
......@@ -94,7 +94,7 @@ void rt_timer_interrupt(struct pt_regs *regs)
int cpuA = ((cputoslice(cpu)) == 0);
int irq = 7; /* XXX Assign number */
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
again:
LOCAL_HUB_S(cpuA ? PI_RT_PEND_A : PI_RT_PEND_B, 0); /* Ack */
......@@ -145,7 +145,7 @@ void rt_timer_interrupt(struct pt_regs *regs)
}
}
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
if (softirq_pending(cpu))
do_softirq();
......@@ -162,17 +162,20 @@ void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long usec, sec;
unsigned long seq;
read_lock_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += xtime.tv_usec;
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += xtime.tv_usec;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -185,7 +188,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
tv->tv_usec -= do_gettimeoffset();
tv->tv_usec -= (jiffies - wall_jiffies) * (1000000 / HZ);
......@@ -199,7 +202,7 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
/* Includes for ioc3_init(). */
......
arch/parisc/kernel/sys_parisc32.c
View file @ 518a829f
......@@ -20,6 +20,7 @@
#include <linux/resource.h>
#include <linux/times.h>
#include <linux/utsname.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
......@@ -2361,21 +2362,23 @@ asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
{
struct sysinfo val;
int err;
extern rwlock_t xtime_lock;
unsigned long seq;
/* We don't need a memset here because we copy the
* struct to userspace once element at a time.
*/
read_lock_irq(&xtime_lock);
val.uptime = jiffies / HZ;
do {
seq = read_seqbegin(&xtime_lock);
val.uptime = jiffies / HZ;
val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
val.procs = nr_threads;
} while (read_seqretry(&xtime_lock, seq));
val.procs = nr_threads;
read_unlock_irq(&xtime_lock);
si_meminfo(&val);
si_swapinfo(&val);
......
arch/parisc/kernel/time.c
View file @ 518a829f
......@@ -36,7 +36,6 @@ u64 jiffies_64;
/* xtime and wall_jiffies keep wall-clock time */
extern unsigned long wall_jiffies;
extern rwlock_t xtime_lock;
static long clocktick; /* timer cycles per tick */
static long halftick;
......@@ -115,9 +114,9 @@ void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
smp_do_timer(regs);
#endif
if (cpu == 0) {
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
do_timer(regs);
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
}
......@@ -172,16 +171,14 @@ gettimeoffset (void)
void
do_gettimeofday (struct timeval *tv)
{
unsigned long flags, usec, sec;
unsigned long flags, seq, usec, sec;
read_lock_irqsave(&xtime_lock, flags);
{
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = gettimeoffset();
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
}
read_unlock_irqrestore(&xtime_lock, flags);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -195,7 +192,7 @@ do_gettimeofday (struct timeval *tv)
void
do_settimeofday (struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
{
/*
* This is revolting. We need to set "xtime"
......@@ -219,7 +216,7 @@ do_settimeofday (struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
}
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
......@@ -241,10 +238,10 @@ void __init time_init(void)
mtctl(next_tick, 16);
if(pdc_tod_read(&tod_data) == 0) {
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
xtime.tv_sec = tod_data.tod_sec;
xtime.tv_nsec = tod_data.tod_usec * 1000;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
} else {
printk(KERN_ERR "Error reading tod clock\n");
xtime.tv_sec = 0;
......
arch/ppc/kernel/time.c
View file @ 518a829f
......@@ -76,7 +76,6 @@ extern struct timezone sys_tz;
/* keep track of when we need to update the rtc */
time_t last_rtc_update;
extern rwlock_t xtime_lock;
/* The decrementer counts down by 128 every 128ns on a 601. */
#define DECREMENTER_COUNT_601 (1000000000 / HZ)
......@@ -161,7 +160,7 @@ void timer_interrupt(struct pt_regs * regs)
continue;
/* We are in an interrupt, no need to save/restore flags */
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
tb_last_stamp = jiffy_stamp;
do_timer(regs);
......@@ -191,7 +190,7 @@ void timer_interrupt(struct pt_regs * regs)
/* Try again one minute later */
last_rtc_update += 60;
}
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
if ( !disarm_decr[smp_processor_id()] )
set_dec(next_dec);
......@@ -213,21 +212,23 @@ void timer_interrupt(struct pt_regs * regs)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned delta, lost_ticks, usec, sec;
read_lock_irqsave(&xtime_lock, flags);
sec = xtime.tv_sec;
usec = (xtime.tv_nsec / 1000);
delta = tb_ticks_since(tb_last_stamp);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
sec = xtime.tv_sec;
usec = (xtime.tv_nsec / 1000);
delta = tb_ticks_since(tb_last_stamp);
#ifdef CONFIG_SMP
/* As long as timebases are not in sync, gettimeofday can only
* have jiffy resolution on SMP.
*/
if (!smp_tb_synchronized)
delta = 0;
/* As long as timebases are not in sync, gettimeofday can only
* have jiffy resolution on SMP.
*/
if (!smp_tb_synchronized)
delta = 0;
#endif /* CONFIG_SMP */
lost_ticks = jiffies - wall_jiffies;
read_unlock_irqrestore(&xtime_lock, flags);
lost_ticks = jiffies - wall_jiffies;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
usec += mulhwu(tb_to_us, tb_ticks_per_jiffy * lost_ticks + delta);
while (usec >= 1000000) {
......@@ -243,7 +244,7 @@ void do_settimeofday(struct timeval *tv)
unsigned long flags;
int tb_delta, new_usec, new_sec;
write_lock_irqsave(&xtime_lock, flags);
write_seqlock_irqsave(&xtime_lock, flags);
/* Updating the RTC is not the job of this code. If the time is
* stepped under NTP, the RTC will be update after STA_UNSYNC
* is cleared. Tool like clock/hwclock either copy the RTC
......@@ -283,7 +284,7 @@ void do_settimeofday(struct timeval *tv)
time_state = TIME_ERROR; /* p. 24, (a) */
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irqrestore(&xtime_lock, flags);
write_sequnlock_irqrestore(&xtime_lock, flags);
}
/* This function is only called on the boot processor */
......
arch/ppc/platforms/pmac_time.c
View file @ 518a829f
......@@ -15,6 +15,7 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/time.h>
#include <linux/adb.h>
#include <linux/cuda.h>
#include <linux/pmu.h>
......@@ -29,8 +30,6 @@
#include <asm/time.h>
#include <asm/nvram.h>
extern rwlock_t xtime_lock;
/* Apparently the RTC stores seconds since 1 Jan 1904 */
#define RTC_OFFSET 2082844800
......@@ -215,19 +214,21 @@ time_sleep_notify(struct pmu_sleep_notifier *self, int when)
{
static unsigned long time_diff;
unsigned long flags;
unsigned long seq;
switch (when) {
case PBOOK_SLEEP_NOW:
read_lock_irqsave(&xtime_lock, flags);
time_diff = xtime.tv_sec - pmac_get_rtc_time();
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
time_diff = xtime.tv_sec - pmac_get_rtc_time();
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
break;
case PBOOK_WAKE:
write_lock_irqsave(&xtime_lock, flags);
write_seqlock_irqsave(&xtime_lock, flags);
xtime.tv_sec = pmac_get_rtc_time() + time_diff;
xtime.tv_nsec = 0;
last_rtc_update = xtime.tv_sec;
write_unlock_irqrestore(&xtime_lock, flags);
write_sequnlock_irqrestore(&xtime_lock, flags);
break;
}
return PBOOK_SLEEP_OK;
......
arch/ppc64/kernel/time.c
View file @ 518a829f
......@@ -69,7 +69,6 @@ u64 jiffies_64;
/* keep track of when we need to update the rtc */
time_t last_rtc_update;
extern rwlock_t xtime_lock;
extern int piranha_simulator;
#ifdef CONFIG_PPC_ISERIES
unsigned long iSeries_recal_titan = 0;
......@@ -284,12 +283,12 @@ int timer_interrupt(struct pt_regs * regs)
smp_local_timer_interrupt(regs);
#endif
if (cpu == boot_cpuid) {
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
tb_last_stamp = lpaca->next_jiffy_update_tb;
do_timer(regs);
timer_sync_xtime( cur_tb );
timer_check_rtc();
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
if ( adjusting_time && (time_adjust == 0) )
ppc_adjtimex();
}
......@@ -348,7 +347,7 @@ void do_settimeofday(struct timeval *tv)
long int tb_delta, new_usec, new_sec;
unsigned long new_xsec;
write_lock_irqsave(&xtime_lock, flags);
write_seqlock_irqsave(&xtime_lock, flags);
/* Updating the RTC is not the job of this code. If the time is
* stepped under NTP, the RTC will be update after STA_UNSYNC
* is cleared. Tool like clock/hwclock either copy the RTC
......@@ -399,7 +398,7 @@ void do_settimeofday(struct timeval *tv)
do_gtod.tb_orig_stamp = tb_last_stamp;
}
write_unlock_irqrestore(&xtime_lock, flags);
write_sequnlock_irqrestore(&xtime_lock, flags);
}
/*
......@@ -465,7 +464,7 @@ void __init time_init(void)
#endif
ppc_md.get_boot_time(&tm);
write_lock_irqsave(&xtime_lock, flags);
write_seqlock_irqsave(&xtime_lock, flags);
xtime.tv_sec = mktime(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec);
tb_last_stamp = get_tb();
......@@ -484,7 +483,7 @@ void __init time_init(void)
xtime.tv_nsec = 0;
last_rtc_update = xtime.tv_sec;
write_unlock_irqrestore(&xtime_lock, flags);
write_sequnlock_irqrestore(&xtime_lock, flags);
/* Not exact, but the timer interrupt takes care of this */
set_dec(tb_ticks_per_jiffy);
......@@ -587,7 +586,7 @@ void ppc_adjtimex(void)
new_tb_to_xs = divres.result_low;
new_xsec = mulhdu( tb_ticks, new_tb_to_xs );
write_lock_irqsave( &xtime_lock, flags );
write_seqlock_irqsave( &xtime_lock, flags );
old_xsec = mulhdu( tb_ticks, do_gtod.varp->tb_to_xs );
new_stamp_xsec = do_gtod.varp->stamp_xsec + old_xsec - new_xsec;
......@@ -609,7 +608,7 @@ void ppc_adjtimex(void)
do_gtod.varp = temp_varp;
do_gtod.var_idx = temp_idx;
write_unlock_irqrestore( &xtime_lock, flags );
write_sequnlock_irqrestore( &xtime_lock, flags );
}
......
arch/s390/kernel/time.c
View file @ 518a829f
......@@ -52,7 +52,6 @@ static ext_int_info_t ext_int_info_timer;
static uint64_t xtime_cc;
static uint64_t init_timer_cc;
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies;
void tod_to_timeval(__u64 todval, struct timespec *xtime)
......@@ -83,12 +82,15 @@ static inline unsigned long do_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec;
read_lock_irqsave(&xtime_lock, flags);
sec = xtime.tv_sec;
usec = xtime.tv_nsec / 1000 + do_gettimeoffset();
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
sec = xtime.tv_sec;
usec = xtime.tv_nsec / 1000 + do_gettimeoffset();
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -102,7 +104,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* This is revolting. We need to set the xtime.tv_nsec
* correctly. However, the value in this location is
* is value at the last tick.
......@@ -122,7 +124,7 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
static inline __u32 div64_32(__u64 dividend, __u32 divisor)
......@@ -166,7 +168,7 @@ static void do_comparator_interrupt(struct pt_regs *regs, __u16 error_code)
* Do not rely on the boot cpu to do the calls to do_timer.
* Spread it over all cpus instead.
*/
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
if (S390_lowcore.jiffy_timer > xtime_cc) {
__u32 xticks;
......@@ -181,7 +183,7 @@ static void do_comparator_interrupt(struct pt_regs *regs, __u16 error_code)
while (xticks--)
do_timer(regs);
}
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
while (ticks--)
update_process_times(user_mode(regs));
#else
......
arch/s390x/kernel/time.c
View file @ 518a829f
......@@ -51,7 +51,6 @@ static ext_int_info_t ext_int_info_timer;
static uint64_t xtime_cc;
static uint64_t init_timer_cc;
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies;
void tod_to_timeval(__u64 todval, struct timespec *xtime)
......@@ -78,12 +77,14 @@ static inline unsigned long do_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec;
read_lock_irqsave(&xtime_lock, flags);
sec = xtime.tv_sec;
usec = xtime.tv_nsec + do_gettimeoffset();
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
sec = xtime.tv_sec;
usec = xtime.tv_nsec + do_gettimeoffset();
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -97,7 +98,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
/* This is revolting. We need to set the xtime.tv_usec
* correctly. However, the value in this location is
* is value at the last tick.
......@@ -117,7 +118,7 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
/*
......@@ -152,7 +153,7 @@ static void do_comparator_interrupt(struct pt_regs *regs, __u16 error_code)
* Do not rely on the boot cpu to do the calls to do_timer.
* Spread it over all cpus instead.
*/
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
if (S390_lowcore.jiffy_timer > xtime_cc) {
__u32 xticks;
......@@ -167,7 +168,7 @@ static void do_comparator_interrupt(struct pt_regs *regs, __u16 error_code)
while (xticks--)
do_timer(regs);
}
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
while (ticks--)
update_process_times(user_mode(regs));
#else
......
arch/sh/kernel/time.c
View file @ 518a829f
......@@ -72,7 +72,6 @@
u64 jiffies_64;
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies;
#define TICK_SIZE tick
......@@ -128,18 +127,20 @@ static unsigned long do_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec;
read_lock_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += xtime.tv_usec;
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += xtime.tv_usec;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -152,7 +153,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
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
......@@ -172,7 +173,7 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
/* last time the RTC clock got updated */
......@@ -231,9 +232,9 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
* the irq version of write_lock because as just said we have irq
* locally disabled. -arca
*/
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
do_timer_interrupt(irq, NULL, regs);
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
static unsigned int __init get_timer_frequency(void)
......
arch/sparc/kernel/pcic.c
View file @ 518a829f
......@@ -25,6 +25,7 @@
#include <linux/ctype.h>
#include <linux/pci.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/interrupt.h>
......@@ -34,8 +35,6 @@
#include <asm/timer.h>
#include <asm/uaccess.h>
extern rwlock_t xtime_lock;
#ifndef CONFIG_PCI
asmlinkage int sys_pciconfig_read(unsigned long bus,
......@@ -739,10 +738,10 @@ static void pcic_clear_clock_irq(void)
static void pcic_timer_handler (int irq, void *h, struct pt_regs *regs)
{
write_lock(&xtime_lock); /* Dummy, to show that we remember */
write_seqlock(&xtime_lock); /* Dummy, to show that we remember */
pcic_clear_clock_irq();
do_timer(regs);
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
#define USECS_PER_JIFFY 10000 /* We have 100HZ "standard" timer for sparc */
......@@ -795,18 +794,20 @@ extern unsigned long wall_jiffies;
static void pci_do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec;
read_lock_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......
arch/sparc/kernel/time.c
View file @ 518a829f
......@@ -23,6 +23,7 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/init.h>
#include <linux/pci.h>
......@@ -42,8 +43,6 @@
#include <asm/page.h>
#include <asm/pcic.h>
extern rwlock_t xtime_lock;
extern unsigned long wall_jiffies;
u64 jiffies_64;
......@@ -131,7 +130,7 @@ void timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
#endif
/* Protect counter clear so that do_gettimeoffset works */
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
#ifdef CONFIG_SUN4
if((idprom->id_machtype == (SM_SUN4 | SM_4_260)) ||
(idprom->id_machtype == (SM_SUN4 | SM_4_110))) {
......@@ -155,7 +154,7 @@ void timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
else
last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
}
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
/* Kick start a stopped clock (procedure from the Sun NVRAM/hostid FAQ). */
......@@ -470,18 +469,20 @@ extern __inline__ unsigned long do_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec;
read_lock_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -494,9 +495,9 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
bus_do_settimeofday(tv);
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
static void sbus_do_settimeofday(struct timeval *tv)
......
arch/sparc64/kernel/time.c
View file @ 518a829f
......@@ -17,6 +17,7 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/init.h>
#include <linux/ioport.h>
......@@ -37,8 +38,6 @@
#include <asm/isa.h>
#include <asm/starfire.h>
extern rwlock_t xtime_lock;
spinlock_t mostek_lock = SPIN_LOCK_UNLOCKED;
spinlock_t rtc_lock = SPIN_LOCK_UNLOCKED;
unsigned long mstk48t02_regs = 0UL;
......@@ -134,7 +133,7 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
unsigned long ticks, pstate;
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
do {
#ifndef CONFIG_SMP
......@@ -196,13 +195,13 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
timer_check_rtc();
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
#ifdef CONFIG_SMP
void timer_tick_interrupt(struct pt_regs *regs)
{
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
do_timer(regs);
......@@ -225,7 +224,7 @@ void timer_tick_interrupt(struct pt_regs *regs)
timer_check_rtc();
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
#endif
......@@ -665,7 +664,7 @@ void do_settimeofday(struct timeval *tv)
if (this_is_starfire)
return;
write_lock_irq(&xtime_lock);
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
......@@ -686,7 +685,7 @@ void do_settimeofday(struct timeval *tv)
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
/* Ok, my cute asm atomicity trick doesn't work anymore.
......@@ -696,18 +695,20 @@ void do_settimeofday(struct timeval *tv)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
unsigned long usec, sec;
read_lock_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
read_unlock_irqrestore(&xtime_lock, flags);
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = do_gettimeoffset();
{
unsigned long lost = jiffies - wall_jiffies;
if (lost)
usec += lost * (1000000 / HZ);
}
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......
arch/um/kernel/time_kern.c
View file @ 518a829f
......@@ -7,6 +7,7 @@
#include "linux/unistd.h"
#include "linux/stddef.h"
#include "linux/spinlock.h"
#include "linux/time.h"
#include "linux/sched.h"
#include "linux/interrupt.h"
#include "linux/init.h"
......@@ -21,8 +22,6 @@
u64 jiffies_64;
extern rwlock_t xtime_lock;
int hz(void)
{
return(HZ);
......@@ -57,9 +56,9 @@ void boot_timer_handler(int sig)
void um_timer(int irq, void *dev, struct pt_regs *regs)
{
do_timer(regs);
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
timer();
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
long um_time(int * tloc)
......
arch/v850/kernel/time.c
View file @ 518a829f
......@@ -17,6 +17,7 @@
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/profile.h>
......@@ -107,8 +108,6 @@ static void timer_interrupt (int irq, void *dummy, struct pt_regs *regs)
#endif /* 0 */
}
extern rwlock_t xtime_lock;
/*
* This version of gettimeofday has near microsecond resolution.
*/
......@@ -120,21 +119,24 @@ void do_gettimeofday (struct timeval *tv)
#endif
unsigned long flags;
unsigned long usec, sec;
unsigned long seq;
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
read_lock_irqsave (&xtime_lock, flags);
#if 0
usec = mach_gettimeoffset ? mach_gettimeoffset () : 0;
usec = mach_gettimeoffset ? mach_gettimeoffset () : 0;
#else
usec = 0;
usec = 0;
#endif
#if 0 /* DAVIDM later if possible */
lost = lost_ticks;
if (lost)
usec += lost * (1000000/HZ);
lost = lost_ticks;
if (lost)
usec += lost * (1000000/HZ);
#endif
sec = xtime.tv_sec;
usec += xtime.tv_nsec / 1000;
read_unlock_irqrestore (&xtime_lock, flags);
sec = xtime.tv_sec;
usec += xtime.tv_nsec / 1000;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
while (usec >= 1000000) {
usec -= 1000000;
......@@ -147,7 +149,7 @@ void do_gettimeofday (struct timeval *tv)
void do_settimeofday (struct timeval *tv)
{
write_lock_irq (&xtime_lock);
write_seqlock_irq (&xtime_lock);
/* This is revolting. We need to set the xtime.tv_nsec
* correctly. However, the value in this location is
......@@ -172,7 +174,7 @@ void do_settimeofday (struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq (&xtime_lock);
write_sequnlock_irq (&xtime_lock);
}
static int timer_dev_id;
......
arch/x86_64/kernel/time.c
View file @ 518a829f
......@@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/mc146818rtc.h>
#include <linux/irq.h>
#include <linux/time.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/device.h>
......@@ -27,7 +28,6 @@
u64 jiffies_64;
extern rwlock_t xtime_lock;
spinlock_t rtc_lock = SPIN_LOCK_UNLOCKED;
unsigned int cpu_khz; /* TSC clocks / usec, not used here */
......@@ -70,21 +70,22 @@ inline unsigned int do_gettimeoffset(void)
void do_gettimeofday(struct timeval *tv)
{
unsigned long flags, t;
unsigned long flags, t, seq;
unsigned int sec, usec;
read_lock_irqsave(&xtime_lock, flags);
spin_lock(&time_offset_lock);
spin_lock_irqsave(&time_offset_lock, flags);
do {
seq = read_seqbegin(&xtime_lock);
sec = xtime.tv_sec;
usec = xtime.tv_nsec / 1000;
sec = xtime.tv_sec;
usec = xtime.tv_nsec / 1000;
t = (jiffies - wall_jiffies) * (1000000L / HZ) + do_gettimeoffset();
if (t > timeoffset) timeoffset = t;
usec += timeoffset;
t = (jiffies - wall_jiffies) * (1000000L / HZ) + do_gettimeoffset();
if (t > timeoffset) timeoffset = t;
usec += timeoffset;
spin_unlock(&time_offset_lock);
read_unlock_irqrestore(&xtime_lock, flags);
} while (read_seqretry(&xtime_lock, seq));
spin_unlock_irqrestore(&time_offset_lock, flags);
tv->tv_sec = sec + usec / 1000000;
tv->tv_usec = usec % 1000000;
......@@ -98,7 +99,7 @@ void do_gettimeofday(struct timeval *tv)
void do_settimeofday(struct timeval *tv)
{
write_lock_irq(&xtime_lock);
write_seqlock_irq(&xtime_lock);
vxtime_lock();
tv->tv_usec -= do_gettimeoffset() +
......@@ -118,7 +119,7 @@ void do_settimeofday(struct timeval *tv)
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
write_unlock_irq(&xtime_lock);
write_sequnlock_irq(&xtime_lock);
}
/*
......@@ -201,7 +202,7 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
* variables, because both do_timer() and us change them -arca+vojtech
*/
write_lock(&xtime_lock);
write_seqlock(&xtime_lock);
vxtime_lock();
{
......@@ -214,6 +215,7 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
hpet.ticks = min_t(long, max_t(long, (t - hpet.last_tsc) * (1000000L / HZ) / (1000000L / HZ - hpet.offset),
cpu_khz * 1000/HZ * 15 / 16), cpu_khz * 1000/HZ * 16 / 15);
hpet.last_tsc = t;
timeoffset = 0;
}
/*
......@@ -250,7 +252,7 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
}
vxtime_unlock();
write_unlock(&xtime_lock);
write_sequnlock(&xtime_lock);
}
unsigned long get_cmos_time(void)
......
drivers/acpi/Kconfig
View file @ 518a829f
......@@ -116,14 +116,6 @@ config ACPI_PROCESSOR
ACPI C2 and C3 processor states to save power, on systems that
support it.
config ACPI_PROCESSOR_PERF
bool "Processor Performance States"
depends on X86 && ACPI && !ACPI_HT_ONLY && ACPI_PROCESSOR && CPU_FREQ
help
This driver adds support for CPU frequency scaling, if this is supported
by the hardware and the BIOS. If you are compiling for a mobile system,
say Y.
config ACPI_THERMAL
tristate "Thermal Zone"
depends on ACPI_PROCESSOR
......
drivers/acpi/Makefile
View file @ 518a829f
......@@ -4,7 +4,7 @@
export ACPI_CFLAGS
ACPI_CFLAGS := -D_LINUX -Idrivers/acpi/include
ACPI_CFLAGS := -D_LINUX -Os -Iinclude/acpi
ifdef CONFIG_ACPI_DEBUG
ACPI_CFLAGS += -DACPI_DEBUG_OUTPUT
......
drivers/acpi/ac.c
View file @ 518a829f
......@@ -27,7 +27,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/compatmac.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include "acpi_bus.h"
......
drivers/acpi/acpi_ksyms.c
View file @ 518a829f
......@@ -25,7 +25,7 @@
#include <linux/module.h>
#include <linux/acpi.h>
#include "include/acpi.h"
#include <acpi/acpi.h>
#include "acpi_bus.h"
......
drivers/acpi/battery.c
View file @ 518a829f
......@@ -27,7 +27,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/compatmac.h>
#include <linux/proc_fs.h>
#include "acpi_bus.h"
#include "acpi_drivers.h"
......
drivers/acpi/button.c
View file @ 518a829f
......@@ -27,7 +27,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/compatmac.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include "acpi_bus.h"
......
drivers/acpi/dispatcher/dsinit.c
View file @ 518a829f
......@@ -24,11 +24,8 @@
#include "acpi.h"
#include "acparser.h"
#include "amlcode.h"
#include "acdispat.h"
#include "acnamesp.h"
#include "acinterp.h"
#define _COMPONENT ACPI_DISPATCHER
ACPI_MODULE_NAME ("dsinit")
......
drivers/acpi/ec.c
View file @ 518a829f
......@@ -28,7 +28,6 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/compatmac.h>
#include <linux/proc_fs.h>
#include <asm/io.h>
#include "acpi_bus.h"
......
drivers/acpi/fan.c
View file @ 518a829f
......@@ -27,7 +27,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/compatmac.h>
#include <linux/proc_fs.h>
#include "acpi_bus.h"
#include "acpi_drivers.h"
......
drivers/acpi/hardware/hwtimer.c
View file @ 518a829f
......@@ -117,7 +117,10 @@ acpi_get_timer (
* Note that this function accomodates only a single timer
* rollover. Thus for 24-bit timers, this function should only
* be used for calculating durations less than ~4.6 seconds
* (~20 hours for 32-bit timers).
* (~20 minutes for 32-bit timers) -- calculations below
*
* 2**24 Ticks / 3,600,000 Ticks/Sec = 4.66 sec
* 2**32 Ticks / 3,600,000 Ticks/Sec = 1193 sec or 19.88 minutes
*
******************************************************************************/
......
drivers/acpi/include/amlresrc.h deleted 100644 → 0
View file @ a9b490dc
This diff is collapsed.
drivers/acpi/namespace/nsload.c
View file @ 518a829f
......@@ -75,9 +75,11 @@ acpi_ns_load_table (
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "AML block at %p\n", table_desc->aml_start));
/* Ignore table if there is no AML contained within */
if (!table_desc->aml_length) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Zero-length AML block\n"));
return_ACPI_STATUS (AE_BAD_PARAMETER);
ACPI_REPORT_WARNING (("Zero-length AML block in table [%4.4s]\n", table_desc->pointer->signature));
return_ACPI_STATUS (AE_OK);
}
/*
......
drivers/acpi/osl.c
View file @ 518a829f
......@@ -35,9 +35,9 @@
#include <linux/kmod.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <acpi/acpi.h>
#include <asm/io.h>
#include "acpi_bus.h"
#include "acpi.h"
#ifdef CONFIG_ACPI_EFI
#include <linux/efi.h>
......
drivers/acpi/power.c
View file @ 518a829f
......@@ -27,7 +27,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/compatmac.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include "acpi_bus.h"
......
drivers/acpi/processor.c
View file @ 518a829f
This diff is collapsed.
drivers/acpi/resources/rscalc.c
View file @ 518a829f
......@@ -793,7 +793,7 @@ acpi_rs_get_pci_routing_table_length (
* The length String.Length field does not include the
* terminating NULL, add 1
*/
temp_size_needed += ((*sub_object_list)->string.length + 1);
temp_size_needed += ((acpi_size) (*sub_object_list)->string.length + 1);
}
else {
temp_size_needed += acpi_ns_get_pathname_length (
......
drivers/acpi/scan.c
View file @ 518a829f
......@@ -6,7 +6,7 @@
#include <linux/acpi.h>
#include "acpi_drivers.h"
#include "include/acinterp.h" /* for acpi_ex_eisa_id_to_string() */
#include <acpi/acinterp.h> /* for acpi_ex_eisa_id_to_string() */
#define _COMPONENT ACPI_BUS_COMPONENT
......
drivers/acpi/tables.c
View file @ 518a829f
......@@ -509,8 +509,7 @@ acpi_table_get_sdt (
int __init
acpi_table_init (
char *cmdline)
acpi_table_init (void)
{
struct acpi_table_rsdp *rsdp = NULL;
unsigned long rsdp_phys = 0;
......
drivers/acpi/tables/tbinstal.c
View file @ 518a829f
......@@ -61,7 +61,7 @@ acpi_tb_match_signature (
* Search for a signature match among the known table types
*/
for (i = 0; i < NUM_ACPI_TABLES; i++) {
if ((acpi_gbl_acpi_table_data[i].flags & ACPI_TABLE_TYPE_MASK) != search_type) {
if (!(acpi_gbl_acpi_table_data[i].flags & search_type)) {
continue;
}
......@@ -74,7 +74,7 @@ acpi_tb_match_signature (
}
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"Table [%4.4s] matched and is a required ACPI table\n",
"Table [%4.4s] is an ACPI table consumed by the core subsystem\n",
(char *) acpi_gbl_acpi_table_data[i].signature));
return_ACPI_STATUS (AE_OK);
......@@ -82,7 +82,7 @@ acpi_tb_match_signature (
}
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"Table [%4.4s] is not a required ACPI table - ignored\n",
"Table [%4.4s] is not an ACPI table consumed by the core subsystem - ignored\n",
(char *) signature));
return_ACPI_STATUS (AE_TABLE_NOT_SUPPORTED);
......@@ -125,7 +125,7 @@ acpi_tb_install_table (
status = acpi_tb_init_table_descriptor (table_info->type, table_info);
if (ACPI_FAILURE (status)) {
ACPI_REPORT_ERROR (("Could not install ACPI table [%s], %s\n",
ACPI_REPORT_ERROR (("Could not install ACPI table [%4.4s], %s\n",
table_info->pointer->signature, acpi_format_exception (status)));
}
......
drivers/acpi/thermal.c
View file @ 518a829f
......@@ -35,7 +35,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/compatmac.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/kmod.h>
......@@ -878,10 +877,12 @@ static int
acpi_thermal_write_trip_points (
struct file *file,
const char *buffer,
unsigned long count,
void *data)
size_t count,
loff_t *ppos)
{
struct acpi_thermal *tz = (struct acpi_thermal *) data;
struct seq_file *m = (struct seq_file *)file->private_data;
struct acpi_thermal *tz = (struct acpi_thermal *)m->private;
char limit_string[25] = {'\0'};
int critical, hot, passive, active0, active1;
......@@ -945,8 +946,8 @@ static int
acpi_thermal_write_cooling_mode (
struct file *file,
const char *buffer,
unsigned long count,
void *data)
size_t count,
loff_t *data)
{
int result = 0;
struct acpi_thermal *tz = (struct acpi_thermal *) data;
......@@ -1005,8 +1006,8 @@ static int
acpi_thermal_write_polling (
struct file *file,
const char *buffer,
unsigned long count,
void *data)
size_t count,
loff_t *data)
{
int result = 0;
struct acpi_thermal *tz = (struct acpi_thermal *) data;
......@@ -1080,10 +1081,10 @@ acpi_thermal_add_fs (
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Unable to create '%s' fs entry\n",
ACPI_THERMAL_FILE_POLLING_FREQ));
ACPI_THERMAL_FILE_TRIP_POINTS));
else {
entry->proc_fops = &acpi_thermal_trip_fops;
entry->write_proc = acpi_thermal_write_trip_points;
entry->proc_fops->write = acpi_thermal_write_trip_points;
entry->data = acpi_driver_data(device);
}
......@@ -1096,7 +1097,7 @@ acpi_thermal_add_fs (
ACPI_THERMAL_FILE_COOLING_MODE));
else {
entry->proc_fops = &acpi_thermal_cooling_fops;
entry->write_proc = acpi_thermal_write_cooling_mode;
entry->proc_fops->write = acpi_thermal_write_cooling_mode;
entry->data = acpi_driver_data(device);
}
......@@ -1109,7 +1110,7 @@ acpi_thermal_add_fs (
ACPI_THERMAL_FILE_POLLING_FREQ));
else {
entry->proc_fops = &acpi_thermal_polling_fops;
entry->write_proc = acpi_thermal_write_polling;
entry->proc_fops->write = acpi_thermal_write_polling;
entry->data = acpi_driver_data(device);
}
......
drivers/acpi/toshiba_acpi.c
View file @ 518a829f
This diff is collapsed.
drivers/acpi/utilities/utcopy.c
View file @ 518a829f
......@@ -652,13 +652,13 @@ acpi_ut_copy_simple_object (
*/
if ((source_desc->string.length) &&
(!(source_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
dest_desc->string.pointer = ACPI_MEM_ALLOCATE (source_desc->string.length + 1);
dest_desc->string.pointer = ACPI_MEM_ALLOCATE ((acpi_size) source_desc->string.length + 1);
if (!dest_desc->string.pointer) {
return (AE_NO_MEMORY);
}
ACPI_MEMCPY (dest_desc->string.pointer, source_desc->string.pointer,
source_desc->string.length + 1);
(acpi_size) source_desc->string.length + 1);
}
break;
......
drivers/char/tty_io.c
View file @ 518a829f
......@@ -442,6 +442,13 @@ void do_tty_hangup(void *data)
file_list_lock();
for (l = tty->tty_files.next; l != &tty->tty_files; l = l->next) {
struct file * filp = list_entry(l, struct file, f_list);
/*
* If this file descriptor has been closed, ignore it; it
* will be going away shortly. (We don't test filp->f_count
* for zero since that could open another race.) --rmk
*/
if (filp->private_data == NULL)
continue;
if (IS_CONSOLE_DEV(filp->f_dentry->d_inode->i_rdev) ||
IS_SYSCONS_DEV(filp->f_dentry->d_inode->i_rdev)) {
cons_filp = filp;
......
drivers/hotplug/acpiphp.h
View file @ 518a829f
......@@ -34,9 +34,8 @@
#ifndef _ACPIPHP_H
#define _ACPIPHP_H
#include "include/acpi.h"
#include <linux/acpi.h>
#include "pci_hotplug.h"
#include "acpi_bus.h"
#define dbg(format, arg...) \
do { \
......
drivers/usb/image/hpusbscsi.c
View file @ 518a829f
This diff is collapsed.
drivers/usb/image/microtek.c
View file @ 518a829f
This diff is collapsed.
fs/ioctl.c
View file @ 518a829f
......@@ -57,7 +57,6 @@ asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
filp = fget(fd);
if (!filp)
goto out;
error = 0;
error = security_file_ioctl(filp, cmd, arg);
if (error) {
......
fs/namespace.c
View file @ 518a829f
......@@ -287,7 +287,7 @@ void umount_tree(struct vfsmount *mnt)
static int do_umount(struct vfsmount *mnt, int flags)
{
struct super_block * sb = mnt->mnt_sb;
int retval = 0;
int retval;
retval = security_sb_umount(mnt, flags);
if (retval)
......
fs/proc/proc_misc.c
View file @ 518a829f
This diff is collapsed.
include/acpi/processor.h 0 → 100644
View file @ 518a829f
This diff is collapsed.
include/asm-alpha/core_irongate.h
View file @ 518a829f
This diff is collapsed.
include/asm-alpha/elf.h
View file @ 518a829f
This diff is collapsed.
include/asm-alpha/topology.h
View file @ 518a829f
This diff is collapsed.
include/linux/acpi.h
View file @ 518a829f
This diff is collapsed.
include/linux/jiffies.h
View file @ 518a829f
This diff is collapsed.
include/linux/seqlock.h 0 → 100644
View file @ 518a829f
This diff is collapsed.
include/linux/time.h
View file @ 518a829f
This diff is collapsed.
init/do_mounts.c
View file @ 518a829f
This diff is collapsed.
kernel/ksyms.c
View file @ 518a829f
This diff is collapsed.
kernel/sys.c
View file @ 518a829f
This diff is collapsed.
kernel/time.c
View file @ 518a829f
This diff is collapsed.
kernel/timer.c
View file @ 518a829f
This diff is collapsed.
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