Commit 047f61c5 authored by Linus Torvalds's avatar Linus Torvalds

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

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (42 commits)
  ACPI: minor printk format change in acpi_pad
  ACPI: make acpi_pad /sys output more readable
  ACPICA: Update version to 20110316
  ACPICA: Header support for SLIC table
  ACPI: Make sure the FADT is at least rev 2 before using the reset register
  ACPI: Bug compatibility for Windows on the ACPI reboot vector
  ACPICA: Fix access width for reset vector
  ACPI battery: fribble sysfs files from a resume notifier
  ACPI button: remove unused procfs I/F
  ACPI, APEI, Add PCIe AER error information printing support
  PCIe, AER, use pre-generated prefix in error information printing
  ACPI, APEI, Add ERST record ID cache
  ACPI: Use syscore_ops instead of sysdev class and sysdev
  ACPI: Remove the unused EC sysdev class
  ACPI: use __cpuinit for the acpi_processor_set_pdc() call tree
  ACPI: use __init where possible in processor driver
  Thermal_Framework-Fix_crash_during_hwmon_unregister
  ACPICA: Update version to 20110211.
  ACPICA: Add mechanism to defer _REG methods for some installed handlers
  ACPICA: Add support for FunctionalFixedHW in acpi_ut_get_region_name
  ...
parents 05061bf6 3d26678e
......@@ -92,6 +92,11 @@ vendor_id: <integer>, device_id: <integer>
class_code: <integer>]
[serial number: <integer>, <integer>]
[bridge: secondary_status: <integer>, control: <integer>]
[aer_status: <integer>, aer_mask: <integer>
<aer status string>
[aer_uncor_severity: <integer>]
aer_layer=<aer layer string>, aer_agent=<aer agent string>
aer_tlp_header: <integer> <integer> <integer> <integer>]
<pcie port type string>* := PCIe end point | legacy PCI end point | \
unknown | unknown | root port | upstream switch port | \
......@@ -99,6 +104,26 @@ downstream switch port | PCIe to PCI/PCI-X bridge | \
PCI/PCI-X to PCIe bridge | root complex integrated endpoint device | \
root complex event collector
if section severity is fatal or recoverable
<aer status string># :=
unknown | unknown | unknown | unknown | Data Link Protocol | \
unknown | unknown | unknown | unknown | unknown | unknown | unknown | \
Poisoned TLP | Flow Control Protocol | Completion Timeout | \
Completer Abort | Unexpected Completion | Receiver Overflow | \
Malformed TLP | ECRC | Unsupported Request
else
<aer status string># :=
Receiver Error | unknown | unknown | unknown | unknown | unknown | \
Bad TLP | Bad DLLP | RELAY_NUM Rollover | unknown | unknown | unknown | \
Replay Timer Timeout | Advisory Non-Fatal
fi
<aer layer string> :=
Physical Layer | Data Link Layer | Transaction Layer
<aer agent string> :=
Receiver ID | Requester ID | Completer ID | Transmitter ID
Where, [] designate corresponding content is optional
All <field string> description with * has the following format:
......
......@@ -270,14 +270,6 @@ Who: Zhang Rui <rui.zhang@intel.com>
---------------------------
What: /proc/acpi/button
When: August 2007
Why: /proc/acpi/button has been replaced by events to the input layer
since 2.6.20.
Who: Len Brown <len.brown@intel.com>
---------------------------
What: /proc/acpi/event
When: February 2008
Why: /proc/acpi/event has been replaced by events via the input layer
......
......@@ -128,9 +128,9 @@ static inline const char *acpi_get_sysname (void)
int acpi_request_vector (u32 int_type);
int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
/* routines for saving/restoring kernel state */
extern int acpi_save_state_mem(void);
extern void acpi_restore_state_mem(void);
/* Low-level suspend routine. */
extern int acpi_suspend_lowlevel(void);
extern unsigned long acpi_wakeup_address;
/*
......
......@@ -803,7 +803,7 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
* ACPI based hotplug CPU support
*/
#ifdef CONFIG_ACPI_HOTPLUG_CPU
static
static __cpuinit
int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
#ifdef CONFIG_ACPI_NUMA
......@@ -878,7 +878,7 @@ __init void prefill_possible_map(void)
set_cpu_possible(i, true);
}
int acpi_map_lsapic(acpi_handle handle, int *pcpu)
static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
......@@ -929,6 +929,11 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
return (0);
}
/* wrapper to silence section mismatch warning */
int __ref acpi_map_lsapic(acpi_handle handle, int *pcpu)
{
return _acpi_map_lsapic(handle, pcpu);
}
EXPORT_SYMBOL(acpi_map_lsapic);
int acpi_unmap_lsapic(int cpu)
......@@ -1034,18 +1039,8 @@ int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
EXPORT_SYMBOL(acpi_unregister_ioapic);
/*
* acpi_save_state_mem() - save kernel state
* acpi_suspend_lowlevel() - save kernel state and suspend.
*
* TBD when when IA64 starts to support suspend...
*/
int acpi_save_state_mem(void) { return 0; }
/*
* acpi_restore_state()
*/
void acpi_restore_state_mem(void) {}
/*
* do_suspend_lowlevel()
*/
void do_suspend_lowlevel(void) {}
int acpi_suspend_lowlevel(void) { return 0; }
......@@ -114,9 +114,8 @@ static inline void acpi_disable_pci(void)
acpi_noirq_set();
}
/* routines for saving/restoring kernel state */
extern int acpi_save_state_mem(void);
extern void acpi_restore_state_mem(void);
/* Low-level suspend routine. */
extern int acpi_suspend_lowlevel(void);
extern const unsigned char acpi_wakeup_code[];
#define acpi_wakeup_address (__pa(TRAMPOLINE_SYM(acpi_wakeup_code)))
......
......@@ -25,12 +25,12 @@ static char temp_stack[4096];
#endif
/**
* acpi_save_state_mem - save kernel state
* acpi_suspend_lowlevel - save kernel state
*
* Create an identity mapped page table and copy the wakeup routine to
* low memory.
*/
int acpi_save_state_mem(void)
int acpi_suspend_lowlevel(void)
{
struct wakeup_header *header;
/* address in low memory of the wakeup routine. */
......@@ -96,16 +96,10 @@ int acpi_save_state_mem(void)
saved_magic = 0x123456789abcdef0L;
#endif /* CONFIG_64BIT */
do_suspend_lowlevel();
return 0;
}
/*
* acpi_restore_state - undo effects of acpi_save_state_mem
*/
void acpi_restore_state_mem(void)
{
}
static int __init acpi_sleep_setup(char *str)
{
while ((str != NULL) && (*str != '\0')) {
......
......@@ -11,3 +11,5 @@ extern int wakeup_pmode_return;
extern unsigned long acpi_copy_wakeup_routine(unsigned long);
extern void wakeup_long64(void);
extern void do_suspend_lowlevel(void);
......@@ -106,24 +106,34 @@ int apei_write_mce(struct mce *m)
ssize_t apei_read_mce(struct mce *m, u64 *record_id)
{
struct cper_mce_record rcd;
ssize_t len;
len = erst_read_next(&rcd.hdr, sizeof(rcd));
if (len <= 0)
return len;
/* Can not skip other records in storage via ERST unless clear them */
else if (len != sizeof(rcd) ||
uuid_le_cmp(rcd.hdr.creator_id, CPER_CREATOR_MCE)) {
if (printk_ratelimit())
pr_warning(
"MCE-APEI: Can not skip the unknown record in ERST");
return -EIO;
}
int rc, pos;
rc = erst_get_record_id_begin(&pos);
if (rc)
return rc;
retry:
rc = erst_get_record_id_next(&pos, record_id);
if (rc)
goto out;
/* no more record */
if (*record_id == APEI_ERST_INVALID_RECORD_ID)
goto out;
rc = erst_read(*record_id, &rcd.hdr, sizeof(rcd));
/* someone else has cleared the record, try next one */
if (rc == -ENOENT)
goto retry;
else if (rc < 0)
goto out;
/* try to skip other type records in storage */
else if (rc != sizeof(rcd) ||
uuid_le_cmp(rcd.hdr.creator_id, CPER_CREATOR_MCE))
goto retry;
memcpy(m, &rcd.mce, sizeof(*m));
*record_id = rcd.hdr.record_id;
rc = sizeof(*m);
out:
erst_get_record_id_end();
return sizeof(*m);
return rc;
}
/* Check whether there is record in ERST */
......
......@@ -298,7 +298,7 @@ static ssize_t acpi_pad_rrtime_store(struct device *dev,
static ssize_t acpi_pad_rrtime_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%d", round_robin_time);
return scnprintf(buf, PAGE_SIZE, "%d\n", round_robin_time);
}
static DEVICE_ATTR(rrtime, S_IRUGO|S_IWUSR,
acpi_pad_rrtime_show,
......@@ -321,7 +321,7 @@ static ssize_t acpi_pad_idlepct_store(struct device *dev,
static ssize_t acpi_pad_idlepct_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%d", idle_pct);
return scnprintf(buf, PAGE_SIZE, "%d\n", idle_pct);
}
static DEVICE_ATTR(idlepct, S_IRUGO|S_IWUSR,
acpi_pad_idlepct_show,
......@@ -342,8 +342,11 @@ static ssize_t acpi_pad_idlecpus_store(struct device *dev,
static ssize_t acpi_pad_idlecpus_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return cpumask_scnprintf(buf, PAGE_SIZE,
to_cpumask(pad_busy_cpus_bits));
int n = 0;
n = cpumask_scnprintf(buf, PAGE_SIZE-2, to_cpumask(pad_busy_cpus_bits));
buf[n++] = '\n';
buf[n] = '\0';
return n;
}
static DEVICE_ATTR(idlecpus, S_IRUGO|S_IWUSR,
acpi_pad_idlecpus_show,
......@@ -453,7 +456,7 @@ static void acpi_pad_notify(acpi_handle handle, u32 event,
dev_name(&device->dev), event, 0);
break;
default:
printk(KERN_WARNING"Unsupported event [0x%x]\n", event);
printk(KERN_WARNING "Unsupported event [0x%x]\n", event);
break;
}
}
......
......@@ -10,7 +10,7 @@ obj-y += acpi.o
acpi-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \
dsmethod.o dsobject.o dsutils.o dswload.o dswstate.o \
dsinit.o
dsinit.o dsargs.o dscontrol.o dswload2.o
acpi-y += evevent.o evregion.o evsci.o evxfevnt.o \
evmisc.o evrgnini.o evxface.o evxfregn.o \
......@@ -45,4 +45,4 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o \
utosi.o utxferror.o
utosi.o utxferror.o utdecode.o
......@@ -48,7 +48,7 @@
#define NAMEOF_ARG_NTE "__A0"
/*
* dsopcode - support for late evaluation
* dsargs - execution of dynamic arguments for static objects
*/
acpi_status
acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc);
......@@ -62,6 +62,20 @@ acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc);
acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc);
/*
* dscontrol - support for execution control opcodes
*/
acpi_status
acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
acpi_status
acpi_ds_exec_end_control_op(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
/*
* dsopcode - support for late operand evaluation
*/
acpi_status
acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
......@@ -85,17 +99,6 @@ acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state,
acpi_status acpi_ds_initialize_region(acpi_handle obj_handle);
/*
* dsctrl - Parser/Interpreter interface, control stack routines
*/
acpi_status
acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
acpi_status
acpi_ds_exec_end_control_op(struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
/*
* dsexec - Parser/Interpreter interface, method execution callbacks
*/
......@@ -136,23 +139,26 @@ acpi_ds_init_field_objects(union acpi_parse_object *op,
struct acpi_walk_state *walk_state);
/*
* dsload - Parser/Interpreter interface, namespace load callbacks
* dsload - Parser/Interpreter interface, pass 1 namespace load callbacks
*/
acpi_status
acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number);
acpi_status
acpi_ds_load1_begin_op(struct acpi_walk_state *walk_state,
union acpi_parse_object **out_op);
acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state);
/*
* dsload - Parser/Interpreter interface, pass 2 namespace load callbacks
*/
acpi_status
acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
union acpi_parse_object **out_op);
acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state);
acpi_status
acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number);
/*
* dsmthdat - method data (locals/args)
*/
......
......@@ -273,6 +273,10 @@ ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS];
ACPI_EXTERN u8 acpi_gbl_last_owner_id_index;
ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset;
/* Initialization sequencing */
ACPI_EXTERN u8 acpi_gbl_reg_methods_executed;
/* Misc */
ACPI_EXTERN u32 acpi_gbl_original_mode;
......
......@@ -89,25 +89,6 @@ union acpi_parse_object;
#define ACPI_MAX_MUTEX 7
#define ACPI_NUM_MUTEX ACPI_MAX_MUTEX+1
#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
#ifdef DEFINE_ACPI_GLOBALS
/* Debug names for the mutexes above */
static char *acpi_gbl_mutex_names[ACPI_NUM_MUTEX] = {
"ACPI_MTX_Interpreter",
"ACPI_MTX_Namespace",
"ACPI_MTX_Tables",
"ACPI_MTX_Events",
"ACPI_MTX_Caches",
"ACPI_MTX_Memory",
"ACPI_MTX_CommandComplete",
"ACPI_MTX_CommandReady"
};
#endif
#endif
/* Lock structure for reader/writer interfaces */
struct acpi_rw_lock {
......
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......@@ -373,6 +373,15 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
gpe_register_info = &gpe_block->register_info[i];
/*
* Optimization: If there are no GPEs enabled within this
* register, we can safely ignore the entire register.
*/
if (!(gpe_register_info->enable_for_run |
gpe_register_info->enable_for_wake)) {
continue;
}
/* Read the Status Register */
status =
......
......@@ -231,6 +231,8 @@ acpi_status acpi_ev_initialize_op_regions(void)
}
}
acpi_gbl_reg_methods_executed = TRUE;
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return_ACPI_STATUS(status);
}
......
......@@ -110,9 +110,39 @@ acpi_install_address_space_handler(acpi_handle device,
goto unlock_and_exit;
}
/*
* For the default space_iDs, (the IDs for which there are default region handlers
* installed) Only execute the _REG methods if the global initialization _REG
* methods have already been run (via acpi_initialize_objects). In other words,
* we will defer the execution of the _REG methods for these space_iDs until
* execution of acpi_initialize_objects. This is done because we need the handlers
* for the default spaces (mem/io/pci/table) to be installed before we can run
* any control methods (or _REG methods). There is known BIOS code that depends
* on this.
*
* For all other space_iDs, we can safely execute the _REG methods immediately.
* This means that for IDs like embedded_controller, this function should be called
* only after acpi_enable_subsystem has been called.
*/
switch (space_id) {
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
case ACPI_ADR_SPACE_SYSTEM_IO:
case ACPI_ADR_SPACE_PCI_CONFIG:
case ACPI_ADR_SPACE_DATA_TABLE:
if (acpi_gbl_reg_methods_executed) {
/* Run all _REG methods for this address space */
status = acpi_ev_execute_reg_methods(node, space_id);
}
break;
default:
status = acpi_ev_execute_reg_methods(node, space_id);
break;
}
unlock_and_exit:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
......
......@@ -280,13 +280,13 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc,
if (ACPI_FAILURE(status)) {
if (status == AE_NOT_IMPLEMENTED) {
ACPI_ERROR((AE_INFO,
"Region %s(0x%X) not implemented",
"Region %s (ID=%u) not implemented",
acpi_ut_get_region_name(rgn_desc->region.
space_id),
rgn_desc->region.space_id));
} else if (status == AE_NOT_EXIST) {
ACPI_ERROR((AE_INFO,
"Region %s(0x%X) has no handler",
"Region %s (ID=%u) has no handler",
acpi_ut_get_region_name(rgn_desc->region.
space_id),
rgn_desc->region.space_id));
......
......@@ -80,14 +80,14 @@ acpi_status acpi_reset(void)
if (reset_reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
/*
* For I/O space, write directly to the OSL. This bypasses the port
* validation mechanism, which may block a valid write to the reset
* register.
* For I/O space, write directly to the OSL. This
* bypasses the port validation mechanism, which may
* block a valid write to the reset register. Spec
* section 4.7.3.6 requires register width to be 8.
*/
status =
acpi_os_write_port((acpi_io_address) reset_reg->address,
acpi_gbl_FADT.reset_value,
reset_reg->bit_width);
acpi_gbl_FADT.reset_value, 8);
} else {
/* Write the reset value to the reset register */
......
......@@ -384,8 +384,11 @@ static void acpi_tb_convert_fadt(void)
*
* The ACPI 1.0 reserved fields that will be zeroed are the bytes located at
* offset 45, 55, 95, and the word located at offset 109, 110.
*
* Note: The FADT revision value is unreliable. Only the length can be
* trusted.
*/
if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) {
if (acpi_gbl_FADT.header.length <= ACPI_FADT_V2_SIZE) {
acpi_gbl_FADT.preferred_profile = 0;
acpi_gbl_FADT.pstate_control = 0;
acpi_gbl_FADT.cst_control = 0;
......
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......@@ -22,6 +22,13 @@ config ACPI_APEI_GHES
by firmware to produce more valuable hardware error
information for Linux.
config ACPI_APEI_PCIEAER
bool "APEI PCIe AER logging/recovering support"
depends on ACPI_APEI && PCIEAER
help
PCIe AER errors may be reported via APEI firmware first mode.
Turn on this option to enable the corresponding support.
config ACPI_APEI_EINJ
tristate "APEI Error INJection (EINJ)"
depends on ACPI_APEI && DEBUG_FS
......
......@@ -29,6 +29,7 @@
#include <linux/time.h>
#include <linux/cper.h>
#include <linux/acpi.h>
#include <linux/aer.h>
/*
* CPER record ID need to be unique even after reboot, because record
......@@ -70,7 +71,7 @@ static const char *cper_severity_str(unsigned int severity)
* If the output length is longer than 80, multiple line will be
* printed, with @pfx is printed at the beginning of each line.
*/
static void cper_print_bits(const char *pfx, unsigned int bits,
void cper_print_bits(const char *pfx, unsigned int bits,
const char *strs[], unsigned int strs_size)
{
int i, len = 0;
......@@ -81,6 +82,8 @@ static void cper_print_bits(const char *pfx, unsigned int bits,
if (!(bits & (1U << i)))
continue;
str = strs[i];
if (!str)
continue;
if (len && len + strlen(str) + 2 > 80) {
printk("%s\n", buf);
len = 0;
......@@ -243,7 +246,8 @@ static const char *cper_pcie_port_type_strs[] = {
"root complex event collector",
};
static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie)
static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
const struct acpi_hest_generic_data *gdata)
{
if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE)
printk("%s""port_type: %d, %s\n", pfx, pcie->port_type,
......@@ -276,6 +280,12 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie)
printk(
"%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n",
pfx, pcie->bridge.secondary_status, pcie->bridge.control);
#ifdef CONFIG_ACPI_APEI_PCIEAER
if (pcie->validation_bits & CPER_PCIE_VALID_AER_INFO) {
struct aer_capability_regs *aer_regs = (void *)pcie->aer_info;
cper_print_aer(pfx, gdata->error_severity, aer_regs);
}
#endif
}
static const char *apei_estatus_section_flag_strs[] = {
......@@ -322,7 +332,7 @@ static void apei_estatus_print_section(
struct cper_sec_pcie *pcie = (void *)(gdata + 1);
printk("%s""section_type: PCIe error\n", pfx);
if (gdata->error_data_length >= sizeof(*pcie))
cper_print_pcie(pfx, pcie);
cper_print_pcie(pfx, pcie, gdata);
else
goto err_section_too_small;
} else
......
......@@ -43,12 +43,27 @@ static DEFINE_MUTEX(erst_dbg_mutex);
static int erst_dbg_open(struct inode *inode, struct file *file)
{
int rc, *pos;
if (erst_disable)
return -ENODEV;
pos = (int *)&file->private_data;
rc = erst_get_record_id_begin(pos);
if (rc)
return rc;
return nonseekable_open(inode, file);
}
static int erst_dbg_release(struct inode *inode, struct file *file)
{
erst_get_record_id_end();
return 0;
}
static long erst_dbg_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
{
int rc;
......@@ -79,18 +94,20 @@ static long erst_dbg_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
static ssize_t erst_dbg_read(struct file *filp, char __user *ubuf,
size_t usize, loff_t *off)
{
int rc;
int rc, *pos;
ssize_t len = 0;
u64 id;
if (*off != 0)
if (*off)
return -EINVAL;
if (mutex_lock_interruptible(&erst_dbg_mutex) != 0)
return -EINTR;
pos = (int *)&filp->private_data;
retry_next:
rc = erst_get_next_record_id(&id);
rc = erst_get_record_id_next(pos, &id);
if (rc)
goto out;
/* no more record */
......@@ -181,6 +198,7 @@ static ssize_t erst_dbg_write(struct file *filp, const char __user *ubuf,
static const struct file_operations erst_dbg_ops = {
.owner = THIS_MODULE,
.open = erst_dbg_open,
.release = erst_dbg_release,
.read = erst_dbg_read,
.write = erst_dbg_write,
.unlocked_ioctl = erst_dbg_ioctl,
......
......@@ -430,6 +430,22 @@ ssize_t erst_get_record_count(void)
}
EXPORT_SYMBOL_GPL(erst_get_record_count);
#define ERST_RECORD_ID_CACHE_SIZE_MIN 16
#define ERST_RECORD_ID_CACHE_SIZE_MAX 1024
struct erst_record_id_cache {
struct mutex lock;
u64 *entries;
int len;
int size;
int refcount;
};
static struct erst_record_id_cache erst_record_id_cache = {
.lock = __MUTEX_INITIALIZER(erst_record_id_cache.lock),
.refcount = 0,
};
static int __erst_get_next_record_id(u64 *record_id)
{
struct apei_exec_context ctx;
......@@ -444,26 +460,179 @@ static int __erst_get_next_record_id(u64 *record_id)
return 0;
}
int erst_get_record_id_begin(int *pos)
{
int rc;
if (erst_disable)
return -ENODEV;
rc = mutex_lock_interruptible(&erst_record_id_cache.lock);
if (rc)
return rc;
erst_record_id_cache.refcount++;
mutex_unlock(&erst_record_id_cache.lock);
*pos = 0;
return 0;
}
EXPORT_SYMBOL_GPL(erst_get_record_id_begin);
/* erst_record_id_cache.lock must be held by caller */
static int __erst_record_id_cache_add_one(void)
{
u64 id, prev_id, first_id;
int i, rc;
u64 *entries;
unsigned long flags;
id = prev_id = first_id = APEI_ERST_INVALID_RECORD_ID;
retry:
raw_spin_lock_irqsave(&erst_lock, flags);
rc = __erst_get_next_record_id(&id);
raw_spin_unlock_irqrestore(&erst_lock, flags);
if (rc == -ENOENT)
return 0;
if (rc)
return rc;
if (id == APEI_ERST_INVALID_RECORD_ID)
return 0;
/* can not skip current ID, or loop back to first ID */
if (id == prev_id || id == first_id)
return 0;
if (first_id == APEI_ERST_INVALID_RECORD_ID)
first_id = id;
prev_id = id;
entries = erst_record_id_cache.entries;
for (i = 0; i < erst_record_id_cache.len; i++) {
if (entries[i] == id)
break;
}
/* record id already in cache, try next */
if (i < erst_record_id_cache.len)
goto retry;
if (erst_record_id_cache.len >= erst_record_id_cache.size) {
int new_size, alloc_size;
u64 *new_entries;
new_size = erst_record_id_cache.size * 2;
new_size = clamp_val(new_size, ERST_RECORD_ID_CACHE_SIZE_MIN,
ERST_RECORD_ID_CACHE_SIZE_MAX);
if (new_size <= erst_record_id_cache.size) {
if (printk_ratelimit())
pr_warning(FW_WARN ERST_PFX
"too many record ID!\n");
return 0;
}
alloc_size = new_size * sizeof(entries[0]);
if (alloc_size < PAGE_SIZE)
new_entries = kmalloc(alloc_size, GFP_KERNEL);
else
new_entries = vmalloc(alloc_size);
if (!new_entries)
return -ENOMEM;
memcpy(new_entries, entries,
erst_record_id_cache.len * sizeof(entries[0]));
if (erst_record_id_cache.size < PAGE_SIZE)
kfree(entries);
else
vfree(entries);
erst_record_id_cache.entries = entries = new_entries;
erst_record_id_cache.size = new_size;
}
entries[i] = id;
erst_record_id_cache.len++;
return 1;
}
/*
* Get the record ID of an existing error record on the persistent
* storage. If there is no error record on the persistent storage, the
* returned record_id is APEI_ERST_INVALID_RECORD_ID.
*/
int erst_get_next_record_id(u64 *record_id)
int erst_get_record_id_next(int *pos, u64 *record_id)
{
int rc;
unsigned long flags;
int rc = 0;
u64 *entries;
if (erst_disable)
return -ENODEV;
raw_spin_lock_irqsave(&erst_lock, flags);
rc = __erst_get_next_record_id(record_id);
raw_spin_unlock_irqrestore(&erst_lock, flags);
/* must be enclosed by erst_get_record_id_begin/end */
BUG_ON(!erst_record_id_cache.refcount);
BUG_ON(*pos < 0 || *pos > erst_record_id_cache.len);
mutex_lock(&erst_record_id_cache.lock);
entries = erst_record_id_cache.entries;
for (; *pos < erst_record_id_cache.len; (*pos)++)
if (entries[*pos] != APEI_ERST_INVALID_RECORD_ID)
break;
/* found next record id in cache */
if (*pos < erst_record_id_cache.len) {
*record_id = entries[*pos];
(*pos)++;
goto out_unlock;
}
/* Try to add one more record ID to cache */
rc = __erst_record_id_cache_add_one();
if (rc < 0)
goto out_unlock;
/* successfully add one new ID */
if (rc == 1) {
*record_id = erst_record_id_cache.entries[*pos];
(*pos)++;
rc = 0;
} else {
*pos = -1;
*record_id = APEI_ERST_INVALID_RECORD_ID;
}
out_unlock:
mutex_unlock(&erst_record_id_cache.lock);
return rc;
}
EXPORT_SYMBOL_GPL(erst_get_next_record_id);
EXPORT_SYMBOL_GPL(erst_get_record_id_next);
/* erst_record_id_cache.lock must be held by caller */
static void __erst_record_id_cache_compact(void)
{
int i, wpos = 0;
u64 *entries;
if (erst_record_id_cache.refcount)
return;
entries = erst_record_id_cache.entries;
for (i = 0; i < erst_record_id_cache.len; i++) {
if (entries[i] == APEI_ERST_INVALID_RECORD_ID)
continue;
if (wpos != i)
memcpy(&entries[wpos], &entries[i], sizeof(entries[i]));
wpos++;
}
erst_record_id_cache.len = wpos;
}
void erst_get_record_id_end(void)
{
/*
* erst_disable != 0 should be detected by invoker via the
* return value of erst_get_record_id_begin/next, so this
* function should not be called for erst_disable != 0.
*/
BUG_ON(erst_disable);
mutex_lock(&erst_record_id_cache.lock);
erst_record_id_cache.refcount--;
BUG_ON(erst_record_id_cache.refcount < 0);
__erst_record_id_cache_compact();
mutex_unlock(&erst_record_id_cache.lock);
}
EXPORT_SYMBOL_GPL(erst_get_record_id_end);
static int __erst_write_to_storage(u64 offset)
{
......@@ -704,56 +873,34 @@ ssize_t erst_read(u64 record_id, struct cper_record_header *record,
}
EXPORT_SYMBOL_GPL(erst_read);
/*
* If return value > buflen, the buffer size is not big enough,
* else if return value = 0, there is no more record to read,
* else if return value < 0, something goes wrong,
* else everything is OK, and return value is record length
*/
ssize_t erst_read_next(struct cper_record_header *record, size_t buflen)
{
int rc;
ssize_t len;
unsigned long flags;
u64 record_id;
if (erst_disable)
return -ENODEV;
raw_spin_lock_irqsave(&erst_lock, flags);
rc = __erst_get_next_record_id(&record_id);
if (rc) {
raw_spin_unlock_irqrestore(&erst_lock, flags);
return rc;
}
/* no more record */
if (record_id == APEI_ERST_INVALID_RECORD_ID) {
raw_spin_unlock_irqrestore(&erst_lock, flags);
return 0;
}
len = __erst_read(record_id, record, buflen);
raw_spin_unlock_irqrestore(&erst_lock, flags);
return len;
}
EXPORT_SYMBOL_GPL(erst_read_next);
int erst_clear(u64 record_id)
{
int rc;
int rc, i;
unsigned long flags;
u64 *entries;
if (erst_disable)
return -ENODEV;
rc = mutex_lock_interruptible(&erst_record_id_cache.lock);
if (rc)
return rc;
raw_spin_lock_irqsave(&erst_lock, flags);
if (erst_erange.attr & ERST_RANGE_NVRAM)
rc = __erst_clear_from_nvram(record_id);
else
rc = __erst_clear_from_storage(record_id);
raw_spin_unlock_irqrestore(&erst_lock, flags);
if (rc)
goto out;
entries = erst_record_id_cache.entries;
for (i = 0; i < erst_record_id_cache.len; i++) {
if (entries[i] == record_id)
entries[i] = APEI_ERST_INVALID_RECORD_ID;
}
__erst_record_id_cache_compact();
out:
mutex_unlock(&erst_record_id_cache.lock);
return rc;
}
EXPORT_SYMBOL_GPL(erst_clear);
......
......@@ -33,6 +33,7 @@
#include <linux/async.h>
#include <linux/dmi.h>
#include <linux/slab.h>
#include <linux/suspend.h>
#ifdef CONFIG_ACPI_PROCFS_POWER
#include <linux/proc_fs.h>
......@@ -102,6 +103,7 @@ struct acpi_battery {
struct mutex lock;
struct power_supply bat;
struct acpi_device *device;
struct notifier_block pm_nb;
unsigned long update_time;
int rate_now;
int capacity_now;
......@@ -940,6 +942,21 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
power_supply_changed(&battery->bat);
}
static int battery_notify(struct notifier_block *nb,
unsigned long mode, void *_unused)
{
struct acpi_battery *battery = container_of(nb, struct acpi_battery,
pm_nb);
switch (mode) {
case PM_POST_SUSPEND:
sysfs_remove_battery(battery);
sysfs_add_battery(battery);
break;
}
return 0;
}
static int acpi_battery_add(struct acpi_device *device)
{
int result = 0;
......@@ -972,6 +989,10 @@ static int acpi_battery_add(struct acpi_device *device)
#endif
kfree(battery);
}
battery->pm_nb.notifier_call = battery_notify;
register_pm_notifier(&battery->pm_nb);
return result;
}
......@@ -982,6 +1003,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
if (!device || !acpi_driver_data(device))
return -EINVAL;
battery = acpi_driver_data(device);
unregister_pm_notifier(&battery->pm_nb);
#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_battery_remove_fs(device);
#endif
......
This diff is collapsed.
......@@ -24,10 +24,6 @@ MODULE_PARM_DESC(write_support, "Dangerous, reboot and removal of battery may "
#define EC_SPACE_SIZE 256
struct sysdev_class acpi_ec_sysdev_class = {
.name = "ec",
};
static struct dentry *acpi_ec_debugfs_dir;
static int acpi_ec_open_io(struct inode *i, struct file *f)
......
......@@ -21,8 +21,6 @@
#ifndef _ACPI_INTERNAL_H_
#define _ACPI_INTERNAL_H_
#include <linux/sysdev.h>
#define PREFIX "ACPI: "
int init_acpi_device_notify(void);
......@@ -64,7 +62,6 @@ struct acpi_ec {
struct list_head list;
struct transaction *curr;
spinlock_t curr_lock;
struct sys_device sysdev;
};
extern struct acpi_ec *first_ec;
......
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......@@ -635,7 +635,7 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
return 0;
}
static void __ref acpi_processor_hotplug_notify(acpi_handle handle,
static void acpi_processor_hotplug_notify(acpi_handle handle,
u32 event, void *data)
{
struct acpi_processor *pr;
......
This diff is collapsed.
......@@ -797,7 +797,6 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
acpi_status status;
acpi_event_status event_status;
device->wakeup.run_wake_count = 0;
device->wakeup.flags.notifier_present = 0;
/* Power button, Lid switch always enable wakeup */
......
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......@@ -560,6 +560,7 @@ thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
tz->hwmon = NULL;
device_remove_file(hwmon->device, &tz->temp_input.attr);
if (tz->ops->get_crit_temp)
device_remove_file(hwmon->device, &tz->temp_crit.attr);
mutex_lock(&thermal_list_lock);
......
This diff is collapsed.
......@@ -250,7 +250,6 @@ struct acpi_device_wakeup {
struct acpi_handle_list resources;
struct acpi_device_wakeup_flags flags;
int prepare_count;
int run_wake_count;
};
/* Device */
......
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