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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

Browse Source 
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] update sn2_defconfig
  [IA64] Fix kernel hangup in kdump on INIT
  [IA64] Fix kernel panic in kdump on INIT
  [IA64] Remove vector from ia64_machine_kexec()
  [IA64] Fix race when multiple cpus go through MCA
  [IA64] Remove needless delay in MCA rendezvous
  [IA64] add driver for ACPI methods to call native firmware
  [IA64] abstract SAL_CALL wrapper to allow other firmware entry points
  [IA64] perfmon: Remove exit_pfm_fs()
  [IA64] tree-wide: Misc __cpu{initdata, init, exit} annotations
This commit is contained in:
Linus Torvalds
2007-10-15 09:57:54 -07:00
parent 4271e0f7e1 432a7d6587
commit 4937ce8795
14 changed files with 513 additions and 336 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
arch/ia64/kernel/crash.c
View File

@@ -118,11 +118,6 @@ machine_crash_shutdown(struct pt_regs *pt)
static void
machine_kdump_on_init(void)
{
if (!ia64_kimage) {
printk(KERN_NOTICE "machine_kdump_on_init(): "
"kdump not configured\n");
return;
}
local_irq_disable();
kexec_disable_iosapic();
machine_kexec(ia64_kimage);
@@ -156,6 +151,14 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
if (!kdump_on_init)
return NOTIFY_DONE;
if (!ia64_kimage) {
if (val == DIE_INIT_MONARCH_LEAVE)
ia64_mca_printk(KERN_NOTICE
"%s: kdump not configured\n",
__FUNCTION__);
return NOTIFY_DONE;
}
if (val != DIE_INIT_MONARCH_LEAVE &&
val != DIE_INIT_SLAVE_LEAVE &&
val != DIE_INIT_MONARCH_PROCESS &&

6
arch/ia64/kernel/machine_kexec.c
View File

@@ -79,7 +79,6 @@ static void ia64_machine_kexec(struct unw_frame_info *info, void *arg)
relocate_new_kernel_t rnk;
void *pal_addr = efi_get_pal_addr();
unsigned long code_addr = (unsigned long)page_address(image->control_code_page);
unsigned long vector;
int ii;
BUG_ON(!image);
@@ -107,11 +106,8 @@ static void ia64_machine_kexec(struct unw_frame_info *info, void *arg)
/* unmask TPR and clear any pending interrupts */
ia64_setreg(_IA64_REG_CR_TPR, 0);
ia64_srlz_d();
vector = ia64_get_ivr();
while (vector != IA64_SPURIOUS_INT_VECTOR) {
while (ia64_get_ivr() != IA64_SPURIOUS_INT_VECTOR)
ia64_eoi();
vector = ia64_get_ivr();
}
platform_kernel_launch_event();
rnk = (relocate_new_kernel_t)&code_addr;
(*rnk)(image->head, image->start, ia64_boot_param,

88
arch/ia64/kernel/mca.c
View File

@@ -701,8 +701,7 @@ ia64_mca_cmc_vector_enable_keventd(struct work_struct *unused)
/*
* ia64_mca_wakeup
*
* Send an inter-cpu interrupt to wake-up a particular cpu
* and mark that cpu to be out of rendez.
* Send an inter-cpu interrupt to wake-up a particular cpu.
*
* Inputs : cpuid
* Outputs : None
@@ -711,14 +710,12 @@ static void
ia64_mca_wakeup(int cpu)
{
platform_send_ipi(cpu, IA64_MCA_WAKEUP_VECTOR, IA64_IPI_DM_INT, 0);
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
}
/*
* ia64_mca_wakeup_all
*
* Wakeup all the cpus which have rendez'ed previously.
* Wakeup all the slave cpus which have rendez'ed previously.
*
* Inputs : None
* Outputs : None
@@ -741,7 +738,10 @@ ia64_mca_wakeup_all(void)
*
* This is handler used to put slave processors into spinloop
* while the monarch processor does the mca handling and later
* wake each slave up once the monarch is done.
* wake each slave up once the monarch is done. The state
* IA64_MCA_RENDEZ_CHECKIN_DONE indicates the cpu is rendez'ed
* in SAL. The state IA64_MCA_RENDEZ_CHECKIN_NOTDONE indicates
* the cpu has come out of OS rendezvous.
*
* Inputs : None
* Outputs : None
@@ -778,6 +778,7 @@ ia64_mca_rendez_int_handler(int rendez_irq, void *arg)
(long)&nd, 0, 0) == NOTIFY_STOP)
ia64_mca_spin(__FUNCTION__);
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
/* Enable all interrupts */
local_irq_restore(flags);
return IRQ_HANDLED;
@@ -1135,30 +1136,27 @@ no_mod:
static void
ia64_wait_for_slaves(int monarch, const char *type)
{
int c, wait = 0, missing = 0;
for_each_online_cpu(c) {
if (c == monarch)
continue;
if (ia64_mc_info.imi_rendez_checkin[c] == IA64_MCA_RENDEZ_CHECKIN_NOTDONE) {
udelay(1000); /* short wait first */
wait = 1;
break;
int c, i , wait;
/*
* wait 5 seconds total for slaves (arbitrary)
*/
for (i = 0; i < 5000; i++) {
wait = 0;
for_each_online_cpu(c) {
if (c == monarch)
continue;
if (ia64_mc_info.imi_rendez_checkin[c]
== IA64_MCA_RENDEZ_CHECKIN_NOTDONE) {
udelay(1000); /* short wait */
wait = 1;
break;
}
}
if (!wait)
goto all_in;
}
if (!wait)
goto all_in;
for_each_online_cpu(c) {
if (c == monarch)
continue;
if (ia64_mc_info.imi_rendez_checkin[c] == IA64_MCA_RENDEZ_CHECKIN_NOTDONE) {
udelay(5*1000000); /* wait 5 seconds for slaves (arbitrary) */
if (ia64_mc_info.imi_rendez_checkin[c] == IA64_MCA_RENDEZ_CHECKIN_NOTDONE)
missing = 1;
break;
}
}
if (!missing)
goto all_in;
/*
* Maybe slave(s) dead. Print buffered messages immediately.
*/
@@ -1224,26 +1222,27 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
if (notify_die(DIE_MCA_MONARCH_ENTER, "MCA", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__FUNCTION__);
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_CONCURRENT_MCA;
if (sos->monarch) {
ia64_wait_for_slaves(cpu, "MCA");
/* Wakeup all the processors which are spinning in the
* rendezvous loop. They will leave SAL, then spin in the OS
* with interrupts disabled until this monarch cpu leaves the
* MCA handler. That gets control back to the OS so we can
* backtrace the other cpus, backtrace when spinning in SAL
* does not work.
*/
ia64_mca_wakeup_all();
if (notify_die(DIE_MCA_MONARCH_PROCESS, "MCA", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__FUNCTION__);
} else {
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_CONCURRENT_MCA;
while (cpu_isset(cpu, mca_cpu))
cpu_relax(); /* spin until monarch wakes us */
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
}
/* Wakeup all the processors which are spinning in the rendezvous loop.
* They will leave SAL, then spin in the OS with interrupts disabled
* until this monarch cpu leaves the MCA handler. That gets control
* back to the OS so we can backtrace the other cpus, backtrace when
* spinning in SAL does not work.
*/
ia64_mca_wakeup_all();
if (notify_die(DIE_MCA_MONARCH_PROCESS, "MCA", regs, (long)&nd, 0, 0)
== NOTIFY_STOP)
ia64_mca_spin(__FUNCTION__);
/* Get the MCA error record and log it */
ia64_mca_log_sal_error_record(SAL_INFO_TYPE_MCA);
@@ -1277,21 +1276,22 @@ ia64_mca_handler(struct pt_regs *regs, struct switch_stack *sw,
/* wake up the next monarch cpu,
* and put this cpu in the rendez loop.
*/
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_CONCURRENT_MCA;
for_each_online_cpu(i) {
if (cpu_isset(i, mca_cpu)) {
monarch_cpu = i;
cpu_clear(i, mca_cpu); /* wake next cpu */
while (monarch_cpu != -1)
cpu_relax(); /* spin until last cpu leaves */
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
set_curr_task(cpu, previous_current);
ia64_mc_info.imi_rendez_checkin[cpu]
= IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
return;
}
}
}
set_curr_task(cpu, previous_current);
monarch_cpu = -1;
ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE;
monarch_cpu = -1; /* This frees the slaves and previous monarchs */
}
static DECLARE_WORK(cmc_disable_work, ia64_mca_cmc_vector_disable_keventd);

2
arch/ia64/kernel/mca_drv.h
View File

@@ -118,7 +118,5 @@ struct mca_table_entry {
extern const struct mca_table_entry *search_mca_tables (unsigned long addr);
extern int mca_recover_range(unsigned long);
extern void ia64_mca_printk(const char * fmt, ...)
__attribute__ ((format (printf, 1, 2)));
extern void ia64_mlogbuf_dump(void);

6
arch/ia64/kernel/palinfo.c
View File

@@ -907,7 +907,7 @@ palinfo_read_entry(char *page, char **start, off_t off, int count, int *eof, voi
return len;
}
static void
static void __cpuinit
create_palinfo_proc_entries(unsigned int cpu)
{
# define CPUSTR "cpu%d"
@@ -968,7 +968,7 @@ remove_palinfo_proc_entries(unsigned int hcpu)
}
}
static int palinfo_cpu_callback(struct notifier_block *nfb,
static int __cpuinit palinfo_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
unsigned int hotcpu = (unsigned long)hcpu;
@@ -986,7 +986,7 @@ static int palinfo_cpu_callback(struct notifier_block *nfb,
return NOTIFY_OK;
}
static struct notifier_block palinfo_cpu_notifier =
static struct notifier_block palinfo_cpu_notifier __cpuinitdata =
{
.notifier_call = palinfo_cpu_callback,
.priority = 0,

7
arch/ia64/kernel/perfmon.c
View File

@@ -1538,13 +1538,6 @@ init_pfm_fs(void)
return err;
}
static void __exit
exit_pfm_fs(void)
{
unregister_filesystem(&pfm_fs_type);
mntput(pfmfs_mnt);
}
static ssize_t
pfm_read(struct file *filp, char __user *buf, size_t size, loff_t *ppos)
{

4
arch/ia64/kernel/salinfo.c
View File

@@ -574,7 +574,7 @@ static const struct file_operations salinfo_data_fops = {
.write = salinfo_log_write,
};
static int __devinit
static int __cpuinit
salinfo_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu)
{
unsigned int i, cpu = (unsigned long)hcpu;
@@ -615,7 +615,7 @@ salinfo_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu
return NOTIFY_OK;
}
static struct notifier_block salinfo_cpu_notifier =
static struct notifier_block salinfo_cpu_notifier __cpuinitdata =
{
.notifier_call = salinfo_cpu_callback,
.priority = 0,

12
arch/ia64/kernel/topology.c
View File

@@ -118,11 +118,11 @@ struct cpu_cache_info {
struct kobject kobj;
};
static struct cpu_cache_info all_cpu_cache_info[NR_CPUS];
static struct cpu_cache_info all_cpu_cache_info[NR_CPUS] __cpuinitdata;
#define LEAF_KOBJECT_PTR(x,y) (&all_cpu_cache_info[x].cache_leaves[y])
#ifdef CONFIG_SMP
static void cache_shared_cpu_map_setup( unsigned int cpu,
static void __cpuinit cache_shared_cpu_map_setup( unsigned int cpu,
struct cache_info * this_leaf)
{
pal_cache_shared_info_t csi;
@@ -157,7 +157,7 @@ static void cache_shared_cpu_map_setup( unsigned int cpu,
&csi) == PAL_STATUS_SUCCESS);
}
#else
static void cache_shared_cpu_map_setup(unsigned int cpu,
static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu,
struct cache_info * this_leaf)
{
cpu_set(cpu, this_leaf->shared_cpu_map);
@@ -428,13 +428,13 @@ static struct notifier_block __cpuinitdata cache_cpu_notifier =
.notifier_call = cache_cpu_callback
};
static int __cpuinit cache_sysfs_init(void)
static int __init cache_sysfs_init(void)
{
int i;
for_each_online_cpu(i) {
cache_cpu_callback(&cache_cpu_notifier, CPU_ONLINE,
(void *)(long)i);
struct sys_device *sys_dev = get_cpu_sysdev((unsigned int)i);
cache_add_dev(sys_dev);
}
register_hotcpu_notifier(&cache_cpu_notifier);