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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86

Browse source 
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
  x86: simplify "make ARCH=x86" and fix kconfig all.config
  x86: reboot fixup for wrap2c board
  x86: check boundary in count setup resource
  x86: fix reboot with no keyboard attached
  x86: add hpet sanity checks
  x86: on x86_64, correct reading of PC RTC when update in progress in time_64.c
  x86: fix freeze in x86_64 RTC update code in time_64.c
  ntp: fix typo that makes sync_cmos_clock erratic
  Remove x86 merge artifact from top Makefile
  x86: fixup cpu_info array conversion
  x86: show cpuinfo only for online CPUs
  x86: fix cpu-hotplug regression
  x86: ignore the sys_getcpu() tcache parameter
  x86: voyager use correct header file name
  x86: fix smp init sections
  x86: fix voyager_cat_init section
  x86: fix bogus memcpy in es7000_check_dsdt()
This commit is contained in:
Linus Torvalds 2007-11-17 08:36:10 -08:00
commit 2ffbb8377c
16 changed files with 81 additions and 82 deletions
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7
Makefile
View file

@ -1332,12 +1332,7 @@ else
ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
endif
# Take care of arch/x86
ifeq ($(ARCH), $(SRCARCH))
ALLSOURCE_ARCHS := $(ARCH)
else
ALLSOURCE_ARCHS := $(ARCH) $(SRCARCH)
endif
ALLSOURCE_ARCHS := $(SRCARCH)
define find-sources
( for arch in $(ALLSOURCE_ARCHS) ; do \

32
arch/x86/kernel/acpi/boot.c
View file

@ -637,6 +637,38 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
}
hpet_address = hpet_tbl->address.address;
/*
* Some broken BIOSes advertise HPET at 0x0. We really do not
* want to allocate a resource there.
*/
if (!hpet_address) {
printk(KERN_WARNING PREFIX
"HPET id: %#x base: %#lx is invalid\n",
hpet_tbl->id, hpet_address);
return 0;
}
#ifdef CONFIG_X86_64
/*
* Some even more broken BIOSes advertise HPET at
* 0xfed0000000000000 instead of 0xfed00000. Fix it up and add
* some noise:
*/
if (hpet_address == 0xfed0000000000000UL) {
if (!hpet_force_user) {
printk(KERN_WARNING PREFIX "HPET id: %#x "
"base: 0xfed0000000000000 is bogus\n "
"try hpet=force on the kernel command line to "
"fix it up to 0xfed00000.\n", hpet_tbl->id);
hpet_address = 0;
return 0;
}
printk(KERN_WARNING PREFIX
"HPET id: %#x base: 0xfed0000000000000 fixed up "
"to 0xfed00000.\n", hpet_tbl->id);
hpet_address >>= 32;
}
#endif
printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
hpet_tbl->id, hpet_address);

2
arch/x86/kernel/cpu/mcheck/mce_64.c
View file

@ -810,7 +810,7 @@ static __cpuinit int mce_create_device(unsigned int cpu)
int err;
int i;
if (!mce_available(&cpu_data(cpu)))
if (!mce_available(&boot_cpu_data))
return -EIO;
memset(&per_cpu(device_mce, cpu).kobj, 0, sizeof(struct kobject));

8
arch/x86/kernel/cpu/proc.c
View file

@ -89,8 +89,6 @@ static int show_cpuinfo(struct seq_file *m, void *v)
int fpu_exception;
#ifdef CONFIG_SMP
if (!cpu_online(n))
return 0;
n = c->cpu_index;
#endif
seq_printf(m, "processor\t: %d\n"
@ -177,14 +175,14 @@ static int show_cpuinfo(struct seq_file *m, void *v)
static void *c_start(struct seq_file *m, loff_t *pos)
{
if (*pos == 0) /* just in case, cpu 0 is not the first */
*pos = first_cpu(cpu_possible_map);
if ((*pos) < NR_CPUS && cpu_possible(*pos))
*pos = first_cpu(cpu_online_map);
if ((*pos) < NR_CPUS && cpu_online(*pos))
return &cpu_data(*pos);
return NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
*pos = next_cpu(*pos, cpu_possible_map);
*pos = next_cpu(*pos, cpu_online_map);
return c_start(m, pos);
}
static void c_stop(struct seq_file *m, void *v)

1
arch/x86/kernel/reboot_fixups_32.c
View file

@ -39,6 +39,7 @@ struct device_fixup {
static struct device_fixup fixups_table[] = {
{ PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset },
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, cs5536_warm_reset },
{ PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE, cs5530a_warm_reset },
};
/*

9
arch/x86/kernel/setup_64.c
View file

@ -892,7 +892,6 @@ void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
#ifdef CONFIG_SMP
c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
c->cpu_index = 0;
#endif
}
@ -1078,8 +1077,6 @@ static int show_cpuinfo(struct seq_file *m, void *v)
#ifdef CONFIG_SMP
if (!cpu_online(c->cpu_index))
return 0;
cpu = c->cpu_index;
#endif
@ -1171,15 +1168,15 @@ static int show_cpuinfo(struct seq_file *m, void *v)
static void *c_start(struct seq_file *m, loff_t *pos)
{
if (*pos == 0) /* just in case, cpu 0 is not the first */
*pos = first_cpu(cpu_possible_map);
if ((*pos) < NR_CPUS && cpu_possible(*pos))
*pos = first_cpu(cpu_online_map);
if ((*pos) < NR_CPUS && cpu_online(*pos))
return &cpu_data(*pos);
return NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
*pos = next_cpu(*pos, cpu_possible_map);
*pos = next_cpu(*pos, cpu_online_map);
return c_start(m, pos);
}

41
arch/x86/kernel/time_64.c
View file

@ -82,18 +82,15 @@ static int set_rtc_mmss(unsigned long nowtime)
int retval = 0;
int real_seconds, real_minutes, cmos_minutes;
unsigned char control, freq_select;
unsigned long flags;
/*
* IRQs are disabled when we're called from the timer interrupt,
* no need for spin_lock_irqsave()
* set_rtc_mmss is called when irqs are enabled, so disable irqs here
*/
spin_lock(&rtc_lock);
spin_lock_irqsave(&rtc_lock, flags);
/*
* Tell the clock it's being set and stop it.
*/
control = CMOS_READ(RTC_CONTROL);
CMOS_WRITE(control | RTC_SET, RTC_CONTROL);
@ -138,7 +135,7 @@ static int set_rtc_mmss(unsigned long nowtime)
CMOS_WRITE(control, RTC_CONTROL);
CMOS_WRITE(freq_select, RTC_FREQ_SELECT);
spin_unlock(&rtc_lock);
spin_unlock_irqrestore(&rtc_lock, flags);
return retval;
}
@ -164,21 +161,27 @@ unsigned long read_persistent_clock(void)
unsigned century = 0;
spin_lock_irqsave(&rtc_lock, flags);
/*
* if UIP is clear, then we have >= 244 microseconds before RTC
* registers will be updated. Spec sheet says that this is the
* reliable way to read RTC - registers invalid (off bus) during update
*/
while ((CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
cpu_relax();
do {
sec = CMOS_READ(RTC_SECONDS);
min = CMOS_READ(RTC_MINUTES);
hour = CMOS_READ(RTC_HOURS);
day = CMOS_READ(RTC_DAY_OF_MONTH);
mon = CMOS_READ(RTC_MONTH);
year = CMOS_READ(RTC_YEAR);
/* now read all RTC registers while stable with interrupts disabled */
sec = CMOS_READ(RTC_SECONDS);
min = CMOS_READ(RTC_MINUTES);
hour = CMOS_READ(RTC_HOURS);
day = CMOS_READ(RTC_DAY_OF_MONTH);
mon = CMOS_READ(RTC_MONTH);
year = CMOS_READ(RTC_YEAR);
#ifdef CONFIG_ACPI
if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
acpi_gbl_FADT.century)
century = CMOS_READ(acpi_gbl_FADT.century);
if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
acpi_gbl_FADT.century)
century = CMOS_READ(acpi_gbl_FADT.century);
#endif
} while (sec != CMOS_READ(RTC_SECONDS));
spin_unlock_irqrestore(&rtc_lock, flags);
/*

2
arch/x86/mach-voyager/voyager_cat.c
View file

@ -568,7 +568,7 @@ static voyager_module_t *voyager_initial_module;
* boot cpu *after* all memory initialisation has been done (so we can
* use kmalloc) but before smp initialisation, so we can probe the SMP
* configuration and pick up necessary information. */
void
void __init
voyager_cat_init(void)
{
voyager_module_t **modpp = &voyager_initial_module;

4
arch/x86/mach-voyager/voyager_smp.c
View file

@ -1900,7 +1900,7 @@ voyager_smp_prepare_cpus(unsigned int max_cpus)
smp_boot_cpus();
}
static void __devinit voyager_smp_prepare_boot_cpu(void)
static void __cpuinit voyager_smp_prepare_boot_cpu(void)
{
init_gdt(smp_processor_id());
switch_to_new_gdt();
@ -1911,7 +1911,7 @@ static void __devinit voyager_smp_prepare_boot_cpu(void)
cpu_set(smp_processor_id(), cpu_present_map);
}
static int __devinit
static int __cpuinit
voyager_cpu_up(unsigned int cpu)
{
/* This only works at boot for x86. See "rewrite" above. */

6
arch/x86/pci/acpi.c
View file

@ -77,6 +77,9 @@ count_resource(struct acpi_resource *acpi_res, void *data)
struct acpi_resource_address64 addr;
acpi_status status;
if (info->res_num >= PCI_BUS_NUM_RESOURCES)
return AE_OK;
status = resource_to_addr(acpi_res, &addr);
if (ACPI_SUCCESS(status))
info->res_num++;
@ -93,6 +96,9 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
unsigned long flags;
struct resource *root;
if (info->res_num >= PCI_BUS_NUM_RESOURCES)
return AE_OK;
status = resource_to_addr(acpi_res, &addr);
if (!ACPI_SUCCESS(status))
return AE_OK;

19
arch/x86/vdso/vgetcpu.c
View file

@ -13,32 +13,17 @@
#include <asm/vgtod.h>
#include "vextern.h"
long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
{
unsigned int dummy, p;
unsigned long j = 0;
/* Fast cache - only recompute value once per jiffies and avoid
relatively costly rdtscp/cpuid otherwise.
This works because the scheduler usually keeps the process
on the same CPU and this syscall doesn't guarantee its
results anyways.
We do this here because otherwise user space would do it on
its own in a likely inferior way (no access to jiffies).
If you don't like it pass NULL. */
if (tcache && tcache->blob[0] == (j = *vdso_jiffies)) {
p = tcache->blob[1];
} else if (*vdso_vgetcpu_mode == VGETCPU_RDTSCP) {
if (*vdso_vgetcpu_mode == VGETCPU_RDTSCP) {
/* Load per CPU data from RDTSCP */
rdtscp(dummy, dummy, p);
} else {
/* Load per CPU data from GDT */
asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));
}
if (tcache) {
tcache->blob[0] = j;
tcache->blob[1] = p;
}
if (cpu)
*cpu = p & 0xfff;
if (node)

2
include/asm-x86/mach-default/mach_reboot.h
View file

@ -49,7 +49,7 @@ static inline void mach_reboot(void)
udelay(50);
kb_wait();
udelay(50);
outb(cmd | 0x04, 0x60); /* set "System flag" */
outb(cmd | 0x14, 0x60); /* set "System flag" and "Keyboard Disabled" */
udelay(50);
kb_wait();
udelay(50);

6
include/asm-x86/mach-es7000/mach_mpparse.h
View file

@ -29,9 +29,9 @@ extern int mps_oem_check(struct mp_config_table *mpc, char *oem,
static inline int es7000_check_dsdt(void)
{
struct acpi_table_header header;
memcpy(&header, 0, sizeof(struct acpi_table_header));
acpi_get_table_header(ACPI_SIG_DSDT, 0, &header);
if (!strncmp(header.oem_id, "UNISYS", 6))
if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) &&
!strncmp(header.oem_id, "UNISYS", 6))
return 1;
return 0;
}

2
include/asm-x86/mach-voyager/setup_arch.h
View file

@ -1,5 +1,5 @@
#include <asm/voyager.h>
#include <asm/setup_32.h>
#include <asm/setup.h>
#define VOYAGER_BIOS_INFO ((struct voyager_bios_info *) \
(&boot_params.apm_bios_info))

20
kernel/sys.c
View file

@ -1750,7 +1750,7 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
}
asmlinkage long sys_getcpu(unsigned __user *cpup, unsigned __user *nodep,
struct getcpu_cache __user *cache)
struct getcpu_cache __user *unused)
{
int err = 0;
int cpu = raw_smp_processor_id();
@ -1758,24 +1758,6 @@ asmlinkage long sys_getcpu(unsigned __user *cpup, unsigned __user *nodep,
err |= put_user(cpu, cpup);
if (nodep)
err |= put_user(cpu_to_node(cpu), nodep);
if (cache) {
/*
* The cache is not needed for this implementation,
* but make sure user programs pass something
* valid. vsyscall implementations can instead make
* good use of the cache. Only use t0 and t1 because
* these are available in both 32bit and 64bit ABI (no
* need for a compat_getcpu). 32bit has enough
* padding
*/
unsigned long t0, t1;
get_user(t0, &cache->blob[0]);
get_user(t1, &cache->blob[1]);
t0++;
t1++;
put_user(t0, &cache->blob[0]);
put_user(t1, &cache->blob[1]);
}
return err ? -EFAULT : 0;
}

2
kernel/time/ntp.c
View file

@ -205,7 +205,7 @@ static void sync_cmos_clock(unsigned long dummy)
return;
getnstimeofday(&now);
if (abs(xtime.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec / 2)
if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec / 2)
fail = update_persistent_clock(now);
next.tv_nsec = (NSEC_PER_SEC / 2) - now.tv_nsec;