mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 07:34:06 +08:00
x86, mce: clean up mce_amd_64.c
Make the coding style match that of the rest of the x86 arch code. [ Impact: cleanup ] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Ingo Molnar
H. Peter Anvin
parent
cb6f3c155b
commit
1cb2a8e176
@ -13,22 +13,22 @@
|
||||
*
|
||||
* All MC4_MISCi registers are shared between multi-cores
|
||||
*/
|
||||
|
||||
#include <linux/cpu.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/kobject.h>
|
||||
#include <linux/notifier.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/smp.h>
|
||||
#include <linux/kobject.h>
|
||||
#include <linux/sysdev.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/sysfs.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/cpu.h>
|
||||
#include <linux/smp.h>
|
||||
|
||||
#include <asm/percpu.h>
|
||||
#include <asm/apic.h>
|
||||
#include <asm/idle.h>
|
||||
#include <asm/mce.h>
|
||||
#include <asm/msr.h>
|
||||
#include <asm/percpu.h>
|
||||
#include <asm/idle.h>
|
||||
|
||||
#define PFX "mce_threshold: "
|
||||
#define VERSION "version 1.1.1"
|
||||
@ -48,26 +48,26 @@
|
||||
#define MCG_XBLK_ADDR 0xC0000400
|
||||
|
||||
struct threshold_block {
|
||||
unsigned int block;
|
||||
unsigned int bank;
|
||||
unsigned int cpu;
|
||||
u32 address;
|
||||
u16 interrupt_enable;
|
||||
u16 threshold_limit;
|
||||
struct kobject kobj;
|
||||
struct list_head miscj;
|
||||
unsigned int block;
|
||||
unsigned int bank;
|
||||
unsigned int cpu;
|
||||
u32 address;
|
||||
u16 interrupt_enable;
|
||||
u16 threshold_limit;
|
||||
struct kobject kobj;
|
||||
struct list_head miscj;
|
||||
};
|
||||
|
||||
/* defaults used early on boot */
|
||||
static struct threshold_block threshold_defaults = {
|
||||
.interrupt_enable = 0,
|
||||
.threshold_limit = THRESHOLD_MAX,
|
||||
.interrupt_enable = 0,
|
||||
.threshold_limit = THRESHOLD_MAX,
|
||||
};
|
||||
|
||||
struct threshold_bank {
|
||||
struct kobject *kobj;
|
||||
struct threshold_block *blocks;
|
||||
cpumask_var_t cpus;
|
||||
struct kobject *kobj;
|
||||
struct threshold_block *blocks;
|
||||
cpumask_var_t cpus;
|
||||
};
|
||||
static DEFINE_PER_CPU(struct threshold_bank *, threshold_banks[NR_BANKS]);
|
||||
|
||||
@ -86,9 +86,9 @@ static void amd_threshold_interrupt(void);
|
||||
*/
|
||||
|
||||
struct thresh_restart {
|
||||
struct threshold_block *b;
|
||||
int reset;
|
||||
u16 old_limit;
|
||||
struct threshold_block *b;
|
||||
int reset;
|
||||
u16 old_limit;
|
||||
};
|
||||
|
||||
/* must be called with correct cpu affinity */
|
||||
@ -110,6 +110,7 @@ static void threshold_restart_bank(void *_tr)
|
||||
} else if (tr->old_limit) { /* change limit w/o reset */
|
||||
int new_count = (mci_misc_hi & THRESHOLD_MAX) +
|
||||
(tr->old_limit - tr->b->threshold_limit);
|
||||
|
||||
mci_misc_hi = (mci_misc_hi & ~MASK_ERR_COUNT_HI) |
|
||||
(new_count & THRESHOLD_MAX);
|
||||
}
|
||||
@ -125,11 +126,11 @@ static void threshold_restart_bank(void *_tr)
|
||||
/* cpu init entry point, called from mce.c with preempt off */
|
||||
void mce_amd_feature_init(struct cpuinfo_x86 *c)
|
||||
{
|
||||
unsigned int bank, block;
|
||||
unsigned int cpu = smp_processor_id();
|
||||
u8 lvt_off;
|
||||
u32 low = 0, high = 0, address = 0;
|
||||
unsigned int bank, block;
|
||||
struct thresh_restart tr;
|
||||
u8 lvt_off;
|
||||
|
||||
for (bank = 0; bank < NR_BANKS; ++bank) {
|
||||
for (block = 0; block < NR_BLOCKS; ++block) {
|
||||
@ -140,8 +141,7 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c)
|
||||
if (!address)
|
||||
break;
|
||||
address += MCG_XBLK_ADDR;
|
||||
}
|
||||
else
|
||||
} else
|
||||
++address;
|
||||
|
||||
if (rdmsr_safe(address, &low, &high))
|
||||
@ -193,9 +193,9 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c)
|
||||
*/
|
||||
static void amd_threshold_interrupt(void)
|
||||
{
|
||||
u32 low = 0, high = 0, address = 0;
|
||||
unsigned int bank, block;
|
||||
struct mce m;
|
||||
u32 low = 0, high = 0, address = 0;
|
||||
|
||||
mce_setup(&m);
|
||||
|
||||
@ -204,16 +204,16 @@ static void amd_threshold_interrupt(void)
|
||||
if (!(per_cpu(bank_map, m.cpu) & (1 << bank)))
|
||||
continue;
|
||||
for (block = 0; block < NR_BLOCKS; ++block) {
|
||||
if (block == 0)
|
||||
if (block == 0) {
|
||||
address = MSR_IA32_MC0_MISC + bank * 4;
|
||||
else if (block == 1) {
|
||||
} else if (block == 1) {
|
||||
address = (low & MASK_BLKPTR_LO) >> 21;
|
||||
if (!address)
|
||||
break;
|
||||
address += MCG_XBLK_ADDR;
|
||||
}
|
||||
else
|
||||
} else {
|
||||
++address;
|
||||
}
|
||||
|
||||
if (rdmsr_safe(address, &low, &high))
|
||||
break;
|
||||
@ -229,8 +229,10 @@ static void amd_threshold_interrupt(void)
|
||||
(high & MASK_LOCKED_HI))
|
||||
continue;
|
||||
|
||||
/* Log the machine check that caused the threshold
|
||||
event. */
|
||||
/*
|
||||
* Log the machine check that caused the threshold
|
||||
* event.
|
||||
*/
|
||||
machine_check_poll(MCP_TIMESTAMP,
|
||||
&__get_cpu_var(mce_poll_banks));
|
||||
|
||||
@ -254,48 +256,56 @@ static void amd_threshold_interrupt(void)
|
||||
|
||||
struct threshold_attr {
|
||||
struct attribute attr;
|
||||
ssize_t(*show) (struct threshold_block *, char *);
|
||||
ssize_t(*store) (struct threshold_block *, const char *, size_t count);
|
||||
ssize_t (*show) (struct threshold_block *, char *);
|
||||
ssize_t (*store) (struct threshold_block *, const char *, size_t count);
|
||||
};
|
||||
|
||||
#define SHOW_FIELDS(name) \
|
||||
static ssize_t show_ ## name(struct threshold_block * b, char *buf) \
|
||||
{ \
|
||||
return sprintf(buf, "%lx\n", (unsigned long) b->name); \
|
||||
#define SHOW_FIELDS(name) \
|
||||
static ssize_t show_ ## name(struct threshold_block *b, char *buf) \
|
||||
{ \
|
||||
return sprintf(buf, "%lx\n", (unsigned long) b->name); \
|
||||
}
|
||||
SHOW_FIELDS(interrupt_enable)
|
||||
SHOW_FIELDS(threshold_limit)
|
||||
|
||||
static ssize_t store_interrupt_enable(struct threshold_block *b,
|
||||
const char *buf, size_t count)
|
||||
static ssize_t
|
||||
store_interrupt_enable(struct threshold_block *b, const char *buf, size_t count)
|
||||
{
|
||||
char *end;
|
||||
struct thresh_restart tr;
|
||||
unsigned long new = simple_strtoul(buf, &end, 0);
|
||||
unsigned long new;
|
||||
char *end;
|
||||
|
||||
new = simple_strtoul(buf, &end, 0);
|
||||
if (end == buf)
|
||||
return -EINVAL;
|
||||
|
||||
b->interrupt_enable = !!new;
|
||||
|
||||
tr.b = b;
|
||||
tr.reset = 0;
|
||||
tr.old_limit = 0;
|
||||
tr.b = b;
|
||||
tr.reset = 0;
|
||||
tr.old_limit = 0;
|
||||
|
||||
smp_call_function_single(b->cpu, threshold_restart_bank, &tr, 1);
|
||||
|
||||
return end - buf;
|
||||
}
|
||||
|
||||
static ssize_t store_threshold_limit(struct threshold_block *b,
|
||||
const char *buf, size_t count)
|
||||
static ssize_t
|
||||
store_threshold_limit(struct threshold_block *b, const char *buf, size_t count)
|
||||
{
|
||||
char *end;
|
||||
struct thresh_restart tr;
|
||||
unsigned long new = simple_strtoul(buf, &end, 0);
|
||||
unsigned long new;
|
||||
char *end;
|
||||
|
||||
new = simple_strtoul(buf, &end, 0);
|
||||
if (end == buf)
|
||||
return -EINVAL;
|
||||
|
||||
if (new > THRESHOLD_MAX)
|
||||
new = THRESHOLD_MAX;
|
||||
if (new < 1)
|
||||
new = 1;
|
||||
|
||||
tr.old_limit = b->threshold_limit;
|
||||
b->threshold_limit = new;
|
||||
tr.b = b;
|
||||
@ -307,8 +317,8 @@ static ssize_t store_threshold_limit(struct threshold_block *b,
|
||||
}
|
||||
|
||||
struct threshold_block_cross_cpu {
|
||||
struct threshold_block *tb;
|
||||
long retval;
|
||||
struct threshold_block *tb;
|
||||
long retval;
|
||||
};
|
||||
|
||||
static void local_error_count_handler(void *_tbcc)
|
||||
@ -338,15 +348,16 @@ static ssize_t store_error_count(struct threshold_block *b,
|
||||
return 1;
|
||||
}
|
||||
|
||||
#define THRESHOLD_ATTR(_name,_mode,_show,_store) { \
|
||||
.attr = {.name = __stringify(_name), .mode = _mode }, \
|
||||
.show = _show, \
|
||||
.store = _store, \
|
||||
#define THRESHOLD_ATTR(_name, _mode, _show, _store) \
|
||||
{ \
|
||||
.attr = {.name = __stringify(_name), .mode = _mode }, \
|
||||
.show = _show, \
|
||||
.store = _store, \
|
||||
};
|
||||
|
||||
#define RW_ATTR(name) \
|
||||
static struct threshold_attr name = \
|
||||
THRESHOLD_ATTR(name, 0644, show_## name, store_## name)
|
||||
#define RW_ATTR(name) \
|
||||
static struct threshold_attr name = \
|
||||
THRESHOLD_ATTR(name, 0644, show_## name, store_## name)
|
||||
|
||||
RW_ATTR(interrupt_enable);
|
||||
RW_ATTR(threshold_limit);
|
||||
@ -359,15 +370,17 @@ static struct attribute *default_attrs[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
#define to_block(k) container_of(k, struct threshold_block, kobj)
|
||||
#define to_attr(a) container_of(a, struct threshold_attr, attr)
|
||||
#define to_block(k) container_of(k, struct threshold_block, kobj)
|
||||
#define to_attr(a) container_of(a, struct threshold_attr, attr)
|
||||
|
||||
static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf)
|
||||
{
|
||||
struct threshold_block *b = to_block(kobj);
|
||||
struct threshold_attr *a = to_attr(attr);
|
||||
ssize_t ret;
|
||||
|
||||
ret = a->show ? a->show(b, buf) : -EIO;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -377,18 +390,20 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
|
||||
struct threshold_block *b = to_block(kobj);
|
||||
struct threshold_attr *a = to_attr(attr);
|
||||
ssize_t ret;
|
||||
|
||||
ret = a->store ? a->store(b, buf, count) : -EIO;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct sysfs_ops threshold_ops = {
|
||||
.show = show,
|
||||
.store = store,
|
||||
.show = show,
|
||||
.store = store,
|
||||
};
|
||||
|
||||
static struct kobj_type threshold_ktype = {
|
||||
.sysfs_ops = &threshold_ops,
|
||||
.default_attrs = default_attrs,
|
||||
.sysfs_ops = &threshold_ops,
|
||||
.default_attrs = default_attrs,
|
||||
};
|
||||
|
||||
static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
|
||||
@ -396,9 +411,9 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
|
||||
unsigned int block,
|
||||
u32 address)
|
||||
{
|
||||
int err;
|
||||
u32 low, high;
|
||||
struct threshold_block *b = NULL;
|
||||
u32 low, high;
|
||||
int err;
|
||||
|
||||
if ((bank >= NR_BANKS) || (block >= NR_BLOCKS))
|
||||
return 0;
|
||||
@ -421,20 +436,21 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
|
||||
if (!b)
|
||||
return -ENOMEM;
|
||||
|
||||
b->block = block;
|
||||
b->bank = bank;
|
||||
b->cpu = cpu;
|
||||
b->address = address;
|
||||
b->interrupt_enable = 0;
|
||||
b->threshold_limit = THRESHOLD_MAX;
|
||||
b->block = block;
|
||||
b->bank = bank;
|
||||
b->cpu = cpu;
|
||||
b->address = address;
|
||||
b->interrupt_enable = 0;
|
||||
b->threshold_limit = THRESHOLD_MAX;
|
||||
|
||||
INIT_LIST_HEAD(&b->miscj);
|
||||
|
||||
if (per_cpu(threshold_banks, cpu)[bank]->blocks)
|
||||
if (per_cpu(threshold_banks, cpu)[bank]->blocks) {
|
||||
list_add(&b->miscj,
|
||||
&per_cpu(threshold_banks, cpu)[bank]->blocks->miscj);
|
||||
else
|
||||
} else {
|
||||
per_cpu(threshold_banks, cpu)[bank]->blocks = b;
|
||||
}
|
||||
|
||||
err = kobject_init_and_add(&b->kobj, &threshold_ktype,
|
||||
per_cpu(threshold_banks, cpu)[bank]->kobj,
|
||||
@ -447,8 +463,9 @@ recurse:
|
||||
if (!address)
|
||||
return 0;
|
||||
address += MCG_XBLK_ADDR;
|
||||
} else
|
||||
} else {
|
||||
++address;
|
||||
}
|
||||
|
||||
err = allocate_threshold_blocks(cpu, bank, ++block, address);
|
||||
if (err)
|
||||
@ -507,6 +524,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
|
||||
|
||||
cpumask_copy(b->cpus, cpu_core_mask(cpu));
|
||||
per_cpu(threshold_banks, cpu)[bank] = b;
|
||||
|
||||
goto out;
|
||||
}
|
||||
#endif
|
||||
@ -605,15 +623,13 @@ static void deallocate_threshold_block(unsigned int cpu,
|
||||
|
||||
static void threshold_remove_bank(unsigned int cpu, int bank)
|
||||
{
|
||||
int i = 0;
|
||||
struct threshold_bank *b;
|
||||
char name[32];
|
||||
int i = 0;
|
||||
|
||||
b = per_cpu(threshold_banks, cpu)[bank];
|
||||
|
||||
if (!b)
|
||||
return;
|
||||
|
||||
if (!b->blocks)
|
||||
goto free_out;
|
||||
|
||||
@ -624,6 +640,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
|
||||
if (shared_bank[bank] && b->blocks->cpu != cpu) {
|
||||
sysfs_remove_link(&per_cpu(device_mce, cpu).kobj, name);
|
||||
per_cpu(threshold_banks, cpu)[bank] = NULL;
|
||||
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
@ -659,8 +676,8 @@ static void threshold_remove_device(unsigned int cpu)
|
||||
}
|
||||
|
||||
/* get notified when a cpu comes on/off */
|
||||
static void __cpuinit amd_64_threshold_cpu_callback(unsigned long action,
|
||||
unsigned int cpu)
|
||||
static void __cpuinit
|
||||
amd_64_threshold_cpu_callback(unsigned long action, unsigned int cpu)
|
||||
{
|
||||
if (cpu >= NR_CPUS)
|
||||
return;
|
||||
@ -686,11 +703,12 @@ static __init int threshold_init_device(void)
|
||||
/* to hit CPUs online before the notifier is up */
|
||||
for_each_online_cpu(lcpu) {
|
||||
int err = threshold_create_device(lcpu);
|
||||
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
threshold_cpu_callback = amd_64_threshold_cpu_callback;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
device_initcall(threshold_init_device);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user