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Commit 2a893f91 authored by Linus Torvalds's avatar Linus Torvalds
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Merge tag 'pm+acpi-for-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 

Pull ACPI and power management fixes from Rafael Wysocki:

 - Removal of some ACPICA code that the kernel will never use from Lv
   Zheng.

 - APEI fix from Adrian Huang.

 - Removal of unnecessary ACPI memory hotplug driver code from Liu
   Jinsong.

 - Minor ACPI power management fixes.

 - ACPI debug code fix from Joe Perches.

 - ACPI fix to make system bus device nodes get the right names.

 - PNP resources handling fixes from Witold Szczeponik.

 - cpuidle fix for a recent regression stalling boot on systems with
   great numbers of CPUs from Daniel Lezcano.

 - cpuidle fixes from Sivaram Nair.

 - intel_idle debug message fix from Youquan Song.

 - cpufreq build regression fix from Larry Finger.

 - cpufreq fix for an obscure initialization race related to statistics
   from Konstantin Khlebnikov.

 - cpufreq change disabling the Longhaul driver by default from Rafał
   Bilski.

 - PM core fix preventing device suspend errors from happening during
   system suspend due to obscure race conditions.

 - PM QoS local variable name cleanup.

* tag 'pm+acpi-for-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: Move disabling/enabling runtime PM to late suspend/early resume
  PM / QoS: Rename local variable in dev_pm_qos_add_ancestor_request()
  ACPI / scan: Do not use dummy HID for system bus ACPI nodes
  cpufreq / governor: Fix problem with cpufreq_ondemand or cpufreq_conservative
  cpufreq / Longhaul: Disable driver by default
  cpufreq / stats: fix race between stats allocation and first usage
  cpuidle: fix lock contention in the idle path
  intel_idle: pr_debug information need separated
  cpuidle / coupled: fix ready counter decrement
  cpuidle: Fix finding state with min power_usage
  PNP: Handle IORESOURCE_BITS in resource allocation
  PNP: Simplify setting of resources
  ACPI / power: Remove useless message from device registering routine
  ACPI / glue: Update DBG macro to include KERN_DEBUG
  ACPI / PM: Do not apply ACPI_SUCCESS() to acpi_bus_get_device() result
  ACPI / memhotplug: remove redundant logic of acpi memory hotadd
  ACPI / APEI: Fix the returned value in erst_dbg_read
  ACPICA: Remove useless mini-C library.
parents 127aa930 f67ffa95
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Showing with 154 additions and 856 deletions
Documentation/power/runtime_pm.txt
View file @ 2a893f91
......@@ -642,12 +642,13 @@ out the following operations:
* During system suspend it calls pm_runtime_get_noresume() and
pm_runtime_barrier() for every device right before executing the
subsystem-level .suspend() callback for it. In addition to that it calls
pm_runtime_disable() for every device right after executing the
subsystem-level .suspend() callback for it.
__pm_runtime_disable() with 'false' as the second argument for every device
right before executing the subsystem-level .suspend_late() callback for it.
* During system resume it calls pm_runtime_enable() and pm_runtime_put_sync()
for every device right before and right after executing the subsystem-level
.resume() callback for it, respectively.
for every device right after executing the subsystem-level .resume_early()
callback and right after executing the subsystem-level .resume() callback
for it, respectively.
7. Generic subsystem callbacks
......
drivers/acpi/acpi_memhotplug.c
View file @ 2a893f91
......@@ -226,16 +226,6 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
struct acpi_memory_info *info;
int node;
/* Get the range from the _CRS */
result = acpi_memory_get_device_resources(mem_device);
if (result) {
dev_err(&mem_device->device->dev,
"get_device_resources failed\n");
mem_device->state = MEMORY_INVALID_STATE;
return result;
}
node = acpi_get_node(mem_device->device->handle);
/*
* Tell the VM there is more memory here...
......@@ -342,14 +332,6 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data)
break;
}
if (acpi_memory_check_device(mem_device))
break;
if (acpi_memory_enable_device(mem_device)) {
acpi_handle_err(handle,"Cannot enable memory device\n");
break;
}
ost_code = ACPI_OST_SC_SUCCESS;
break;
......
drivers/acpi/acpica/Makefile
View file @ 2a893f91
......@@ -162,5 +162,5 @@ acpi-y += \
utxferror.o \
utxfmutex.o
acpi-$(ACPI_FUTURE_USAGE) += uttrack.o utcache.o utclib.o
acpi-$(ACPI_FUTURE_USAGE) += uttrack.o utcache.o
drivers/acpi/acpica/utclib.c deleted 100644 → 0
View file @ 127aa930
/******************************************************************************
*
* Module Name: cmclib - Local implementation of C library functions
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2012, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <acpi/acpi.h>
#include "accommon.h"
/*
* These implementations of standard C Library routines can optionally be
* used if a C library is not available. In general, they are less efficient
* than an inline or assembly implementation
*/
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("cmclib")
#ifndef ACPI_USE_SYSTEM_CLIBRARY
#define NEGATIVE 1
#define POSITIVE 0
/*******************************************************************************
*
* FUNCTION: acpi_ut_memcmp (memcmp)
*
* PARAMETERS: buffer1 - First Buffer
* buffer2 - Second Buffer
* count - Maximum # of bytes to compare
*
* RETURN: Index where Buffers mismatched, or 0 if Buffers matched
*
* DESCRIPTION: Compare two Buffers, with a maximum length
*
******************************************************************************/
int acpi_ut_memcmp(const char *buffer1, const char *buffer2, acpi_size count)
{
return ((count == ACPI_SIZE_MAX) ? 0 : ((unsigned char)*buffer1 -
(unsigned char)*buffer2));
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_memcpy (memcpy)
*
* PARAMETERS: dest - Target of the copy
* src - Source buffer to copy
* count - Number of bytes to copy
*
* RETURN: Dest
*
* DESCRIPTION: Copy arbitrary bytes of memory
*
******************************************************************************/
void *acpi_ut_memcpy(void *dest, const void *src, acpi_size count)
{
char *new = (char *)dest;
char *old = (char *)src;
while (count) {
*new = *old;
new++;
old++;
count--;
}
return (dest);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_memset (memset)
*
* PARAMETERS: dest - Buffer to set
* value - Value to set each byte of memory
* count - Number of bytes to set
*
* RETURN: Dest
*
* DESCRIPTION: Initialize a buffer to a known value.
*
******************************************************************************/
void *acpi_ut_memset(void *dest, u8 value, acpi_size count)
{
char *new = (char *)dest;
while (count) {
*new = (char)value;
new++;
count--;
}
return (dest);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_strlen (strlen)
*
* PARAMETERS: string - Null terminated string
*
* RETURN: Length
*
* DESCRIPTION: Returns the length of the input string
*
******************************************************************************/
acpi_size acpi_ut_strlen(const char *string)
{
u32 length = 0;
/* Count the string until a null is encountered */
while (*string) {
length++;
string++;
}
return (length);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_strcpy (strcpy)
*
* PARAMETERS: dst_string - Target of the copy
* src_string - The source string to copy
*
* RETURN: dst_string
*
* DESCRIPTION: Copy a null terminated string
*
******************************************************************************/
char *acpi_ut_strcpy(char *dst_string, const char *src_string)
{
char *string = dst_string;
/* Move bytes brute force */
while (*src_string) {
*string = *src_string;
string++;
src_string++;
}
/* Null terminate */
*string = 0;
return (dst_string);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_strncpy (strncpy)
*
* PARAMETERS: dst_string - Target of the copy
* src_string - The source string to copy
* count - Maximum # of bytes to copy
*
* RETURN: dst_string
*
* DESCRIPTION: Copy a null terminated string, with a maximum length
*
******************************************************************************/
char *acpi_ut_strncpy(char *dst_string, const char *src_string, acpi_size count)
{
char *string = dst_string;
/* Copy the string */
for (string = dst_string;
count && (count--, (*string++ = *src_string++));) {;
}
/* Pad with nulls if necessary */
while (count--) {
*string = 0;
string++;
}
/* Return original pointer */
return (dst_string);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_strcmp (strcmp)
*
* PARAMETERS: string1 - First string
* string2 - Second string
*
* RETURN: Index where strings mismatched, or 0 if strings matched
*
* DESCRIPTION: Compare two null terminated strings
*
******************************************************************************/
int acpi_ut_strcmp(const char *string1, const char *string2)
{
for (; (*string1 == *string2); string2++) {
if (!*string1++) {
return (0);
}
}
return ((unsigned char)*string1 - (unsigned char)*string2);
}
#ifdef ACPI_FUTURE_IMPLEMENTATION
/* Not used at this time */
/*******************************************************************************
*
* FUNCTION: acpi_ut_strchr (strchr)
*
* PARAMETERS: string - Search string
* ch - character to search for
*
* RETURN: Ptr to char or NULL if not found
*
* DESCRIPTION: Search a string for a character
*
******************************************************************************/
char *acpi_ut_strchr(const char *string, int ch)
{
for (; (*string); string++) {
if ((*string) == (char)ch) {
return ((char *)string);
}
}
return (NULL);
}
#endif
/*******************************************************************************
*
* FUNCTION: acpi_ut_strncmp (strncmp)
*
* PARAMETERS: string1 - First string
* string2 - Second string
* count - Maximum # of bytes to compare
*
* RETURN: Index where strings mismatched, or 0 if strings matched
*
* DESCRIPTION: Compare two null terminated strings, with a maximum length
*
******************************************************************************/
int acpi_ut_strncmp(const char *string1, const char *string2, acpi_size count)
{
for (; count-- && (*string1 == *string2); string2++) {
if (!*string1++) {
return (0);
}
}
return ((count == ACPI_SIZE_MAX) ? 0 : ((unsigned char)*string1 -
(unsigned char)*string2));
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_strcat (Strcat)
*
* PARAMETERS: dst_string - Target of the copy
* src_string - The source string to copy
*
* RETURN: dst_string
*
* DESCRIPTION: Append a null terminated string to a null terminated string
*
******************************************************************************/
char *acpi_ut_strcat(char *dst_string, const char *src_string)
{
char *string;
/* Find end of the destination string */
for (string = dst_string; *string++;) {;
}
/* Concatenate the string */
for (--string; (*string++ = *src_string++);) {;
}
return (dst_string);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_strncat (strncat)
*
* PARAMETERS: dst_string - Target of the copy
* src_string - The source string to copy
* count - Maximum # of bytes to copy
*
* RETURN: dst_string
*
* DESCRIPTION: Append a null terminated string to a null terminated string,
* with a maximum count.
*
******************************************************************************/
char *acpi_ut_strncat(char *dst_string, const char *src_string, acpi_size count)
{
char *string;
if (count) {
/* Find end of the destination string */
for (string = dst_string; *string++;) {;
}
/* Concatenate the string */
for (--string; (*string++ = *src_string++) && --count;) {;
}
/* Null terminate if necessary */
if (!count) {
*string = 0;
}
}
return (dst_string);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_strstr (strstr)
*
* PARAMETERS: string1 - Target string
* string2 - Substring to search for
*
* RETURN: Where substring match starts, Null if no match found
*
* DESCRIPTION: Checks if String2 occurs in String1. This is not really a
* full implementation of strstr, only sufficient for command
* matching
*
******************************************************************************/
char *acpi_ut_strstr(char *string1, char *string2)
{
char *string;
if (acpi_ut_strlen(string2) > acpi_ut_strlen(string1)) {
return (NULL);
}
/* Walk entire string, comparing the letters */
for (string = string1; *string2;) {
if (*string2 != *string) {
return (NULL);
}
string2++;
string++;
}
return (string1);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_strtoul (strtoul)
*
* PARAMETERS: string - Null terminated string
* terminater - Where a pointer to the terminating byte is
* returned
* base - Radix of the string
*
* RETURN: Converted value
*
* DESCRIPTION: Convert a string into a 32-bit unsigned value.
* Note: use acpi_ut_strtoul64 for 64-bit integers.
*
******************************************************************************/
u32 acpi_ut_strtoul(const char *string, char **terminator, u32 base)
{
u32 converted = 0;
u32 index;
u32 sign;
const char *string_start;
u32 return_value = 0;
acpi_status status = AE_OK;
/*
* Save the value of the pointer to the buffer's first
* character, save the current errno value, and then
* skip over any white space in the buffer:
*/
string_start = string;
while (ACPI_IS_SPACE(*string) || *string == '\t') {
++string;
}
/*
* The buffer may contain an optional plus or minus sign.
* If it does, then skip over it but remember what is was:
*/
if (*string == '-') {
sign = NEGATIVE;
++string;
} else if (*string == '+') {
++string;
sign = POSITIVE;
} else {
sign = POSITIVE;
}
/*
* If the input parameter Base is zero, then we need to
* determine if it is octal, decimal, or hexadecimal:
*/
if (base == 0) {
if (*string == '0') {
if (acpi_ut_to_lower(*(++string)) == 'x') {
base = 16;
++string;
} else {
base = 8;
}
} else {
base = 10;
}
} else if (base < 2 || base > 36) {
/*
* The specified Base parameter is not in the domain of
* this function:
*/
goto done;
}
/*
* For octal and hexadecimal bases, skip over the leading
* 0 or 0x, if they are present.
*/
if (base == 8 && *string == '0') {
string++;
}
if (base == 16 &&
*string == '0' && acpi_ut_to_lower(*(++string)) == 'x') {
string++;
}
/*
* Main loop: convert the string to an unsigned long:
*/
while (*string) {
if (ACPI_IS_DIGIT(*string)) {
index = (u32)((u8)*string - '0');
} else {
index = (u32)acpi_ut_to_upper(*string);
if (ACPI_IS_UPPER(index)) {
index = index - 'A' + 10;
} else {
goto done;
}
}
if (index >= base) {
goto done;
}
/*
* Check to see if value is out of range:
*/
if (return_value > ((ACPI_UINT32_MAX - (u32)index) / (u32)base)) {
status = AE_ERROR;
return_value = 0; /* reset */
} else {
return_value *= base;
return_value += index;
converted = 1;
}
++string;
}
done:
/*
* If appropriate, update the caller's pointer to the next
* unconverted character in the buffer.
*/
if (terminator) {
if (converted == 0 && return_value == 0 && string != NULL) {
*terminator = (char *)string_start;
} else {
*terminator = (char *)string;
}
}
if (status == AE_ERROR) {
return_value = ACPI_UINT32_MAX;
}
/*
* If a minus sign was present, then "the conversion is negated":
*/
if (sign == NEGATIVE) {
return_value = (ACPI_UINT32_MAX - return_value) + 1;
}
return (return_value);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_to_upper (TOUPPER)
*
* PARAMETERS: c - Character to convert
*
* RETURN: Converted character as an int
*
* DESCRIPTION: Convert character to uppercase
*
******************************************************************************/
int acpi_ut_to_upper(int c)
{
return (ACPI_IS_LOWER(c) ? ((c) - 0x20) : (c));
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_to_lower (TOLOWER)
*
* PARAMETERS: c - Character to convert
*
* RETURN: Converted character as an int
*
* DESCRIPTION: Convert character to lowercase
*
******************************************************************************/
int acpi_ut_to_lower(int c)
{
return (ACPI_IS_UPPER(c) ? ((c) + 0x20) : (c));
}
/*******************************************************************************
*
* FUNCTION: is* functions
*
* DESCRIPTION: is* functions use the ctype table below
*
******************************************************************************/
const u8 _acpi_ctype[257] = {
_ACPI_CN, /* 0x00 0 NUL */
_ACPI_CN, /* 0x01 1 SOH */
_ACPI_CN, /* 0x02 2 STX */
_ACPI_CN, /* 0x03 3 ETX */
_ACPI_CN, /* 0x04 4 EOT */
_ACPI_CN, /* 0x05 5 ENQ */
_ACPI_CN, /* 0x06 6 ACK */
_ACPI_CN, /* 0x07 7 BEL */
_ACPI_CN, /* 0x08 8 BS */
_ACPI_CN | _ACPI_SP, /* 0x09 9 TAB */
_ACPI_CN | _ACPI_SP, /* 0x0A 10 LF */
_ACPI_CN | _ACPI_SP, /* 0x0B 11 VT */
_ACPI_CN | _ACPI_SP, /* 0x0C 12 FF */
_ACPI_CN | _ACPI_SP, /* 0x0D 13 CR */
_ACPI_CN, /* 0x0E 14 SO */
_ACPI_CN, /* 0x0F 15 SI */
_ACPI_CN, /* 0x10 16 DLE */
_ACPI_CN, /* 0x11 17 DC1 */
_ACPI_CN, /* 0x12 18 DC2 */
_ACPI_CN, /* 0x13 19 DC3 */
_ACPI_CN, /* 0x14 20 DC4 */
_ACPI_CN, /* 0x15 21 NAK */
_ACPI_CN, /* 0x16 22 SYN */
_ACPI_CN, /* 0x17 23 ETB */
_ACPI_CN, /* 0x18 24 CAN */
_ACPI_CN, /* 0x19 25 EM */
_ACPI_CN, /* 0x1A 26 SUB */
_ACPI_CN, /* 0x1B 27 ESC */
_ACPI_CN, /* 0x1C 28 FS */
_ACPI_CN, /* 0x1D 29 GS */
_ACPI_CN, /* 0x1E 30 RS */
_ACPI_CN, /* 0x1F 31 US */
_ACPI_XS | _ACPI_SP, /* 0x20 32 ' ' */
_ACPI_PU, /* 0x21 33 '!' */
_ACPI_PU, /* 0x22 34 '"' */
_ACPI_PU, /* 0x23 35 '#' */
_ACPI_PU, /* 0x24 36 '$' */
_ACPI_PU, /* 0x25 37 '%' */
_ACPI_PU, /* 0x26 38 '&' */
_ACPI_PU, /* 0x27 39 ''' */
_ACPI_PU, /* 0x28 40 '(' */
_ACPI_PU, /* 0x29 41 ')' */
_ACPI_PU, /* 0x2A 42 '*' */
_ACPI_PU, /* 0x2B 43 '+' */
_ACPI_PU, /* 0x2C 44 ',' */
_ACPI_PU, /* 0x2D 45 '-' */
_ACPI_PU, /* 0x2E 46 '.' */
_ACPI_PU, /* 0x2F 47 '/' */
_ACPI_XD | _ACPI_DI, /* 0x30 48 '0' */
_ACPI_XD | _ACPI_DI, /* 0x31 49 '1' */
_ACPI_XD | _ACPI_DI, /* 0x32 50 '2' */
_ACPI_XD | _ACPI_DI, /* 0x33 51 '3' */
_ACPI_XD | _ACPI_DI, /* 0x34 52 '4' */
_ACPI_XD | _ACPI_DI, /* 0x35 53 '5' */
_ACPI_XD | _ACPI_DI, /* 0x36 54 '6' */
_ACPI_XD | _ACPI_DI, /* 0x37 55 '7' */
_ACPI_XD | _ACPI_DI, /* 0x38 56 '8' */
_ACPI_XD | _ACPI_DI, /* 0x39 57 '9' */
_ACPI_PU, /* 0x3A 58 ':' */
_ACPI_PU, /* 0x3B 59 ';' */
_ACPI_PU, /* 0x3C 60 '<' */
_ACPI_PU, /* 0x3D 61 '=' */
_ACPI_PU, /* 0x3E 62 '>' */
_ACPI_PU, /* 0x3F 63 '?' */
_ACPI_PU, /* 0x40 64 '@' */
_ACPI_XD | _ACPI_UP, /* 0x41 65 'A' */
_ACPI_XD | _ACPI_UP, /* 0x42 66 'B' */
_ACPI_XD | _ACPI_UP, /* 0x43 67 'C' */
_ACPI_XD | _ACPI_UP, /* 0x44 68 'D' */
_ACPI_XD | _ACPI_UP, /* 0x45 69 'E' */
_ACPI_XD | _ACPI_UP, /* 0x46 70 'F' */
_ACPI_UP, /* 0x47 71 'G' */
_ACPI_UP, /* 0x48 72 'H' */
_ACPI_UP, /* 0x49 73 'I' */
_ACPI_UP, /* 0x4A 74 'J' */
_ACPI_UP, /* 0x4B 75 'K' */
_ACPI_UP, /* 0x4C 76 'L' */
_ACPI_UP, /* 0x4D 77 'M' */
_ACPI_UP, /* 0x4E 78 'N' */
_ACPI_UP, /* 0x4F 79 'O' */
_ACPI_UP, /* 0x50 80 'P' */
_ACPI_UP, /* 0x51 81 'Q' */
_ACPI_UP, /* 0x52 82 'R' */
_ACPI_UP, /* 0x53 83 'S' */
_ACPI_UP, /* 0x54 84 'T' */
_ACPI_UP, /* 0x55 85 'U' */
_ACPI_UP, /* 0x56 86 'V' */
_ACPI_UP, /* 0x57 87 'W' */
_ACPI_UP, /* 0x58 88 'X' */
_ACPI_UP, /* 0x59 89 'Y' */
_ACPI_UP, /* 0x5A 90 'Z' */
_ACPI_PU, /* 0x5B 91 '[' */
_ACPI_PU, /* 0x5C 92 '\' */
_ACPI_PU, /* 0x5D 93 ']' */
_ACPI_PU, /* 0x5E 94 '^' */
_ACPI_PU, /* 0x5F 95 '_' */
_ACPI_PU, /* 0x60 96 '`' */
_ACPI_XD | _ACPI_LO, /* 0x61 97 'a' */
_ACPI_XD | _ACPI_LO, /* 0x62 98 'b' */
_ACPI_XD | _ACPI_LO, /* 0x63 99 'c' */
_ACPI_XD | _ACPI_LO, /* 0x64 100 'd' */
_ACPI_XD | _ACPI_LO, /* 0x65 101 'e' */
_ACPI_XD | _ACPI_LO, /* 0x66 102 'f' */
_ACPI_LO, /* 0x67 103 'g' */
_ACPI_LO, /* 0x68 104 'h' */
_ACPI_LO, /* 0x69 105 'i' */
_ACPI_LO, /* 0x6A 106 'j' */
_ACPI_LO, /* 0x6B 107 'k' */
_ACPI_LO, /* 0x6C 108 'l' */
_ACPI_LO, /* 0x6D 109 'm' */
_ACPI_LO, /* 0x6E 110 'n' */
_ACPI_LO, /* 0x6F 111 'o' */
_ACPI_LO, /* 0x70 112 'p' */
_ACPI_LO, /* 0x71 113 'q' */
_ACPI_LO, /* 0x72 114 'r' */
_ACPI_LO, /* 0x73 115 's' */
_ACPI_LO, /* 0x74 116 't' */
_ACPI_LO, /* 0x75 117 'u' */
_ACPI_LO, /* 0x76 118 'v' */
_ACPI_LO, /* 0x77 119 'w' */
_ACPI_LO, /* 0x78 120 'x' */
_ACPI_LO, /* 0x79 121 'y' */
_ACPI_LO, /* 0x7A 122 'z' */
_ACPI_PU, /* 0x7B 123 '{' */
_ACPI_PU, /* 0x7C 124 '|' */
_ACPI_PU, /* 0x7D 125 '}' */
_ACPI_PU, /* 0x7E 126 '~' */
_ACPI_CN, /* 0x7F 127 DEL */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 to 0x8F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 to 0x9F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xA0 to 0xAF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xB0 to 0xBF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xC0 to 0xCF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xD0 to 0xDF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xE0 to 0xEF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xF0 to 0xFF */
0 /* 0x100 */
};
#endif /* ACPI_USE_SYSTEM_CLIBRARY */
drivers/acpi/apei/erst-dbg.c
View file @ 2a893f91
......@@ -111,8 +111,17 @@ static ssize_t erst_dbg_read(struct file *filp, char __user *ubuf,
if (rc)
goto out;
/* no more record */
if (id == APEI_ERST_INVALID_RECORD_ID)
if (id == APEI_ERST_INVALID_RECORD_ID) {
/*
* If the persistent store is empty initially, the function
* 'erst_read' below will return "-ENOENT" value. This causes
* 'retry_next' label is entered again. The returned value
* should be zero indicating the read operation is EOF.
*/
len = 0;
goto out;
}
retry:
rc = len = erst_read(id, erst_dbg_buf, erst_dbg_buf_len);
/* The record may be cleared by others, try read next record */
......
drivers/acpi/device_pm.c
View file @ 2a893f91
......@@ -358,8 +358,7 @@ static struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
struct acpi_device *adev;
return handle && ACPI_SUCCESS(acpi_bus_get_device(handle, &adev)) ?
adev : NULL;
return handle && !acpi_bus_get_device(handle, &adev) ? adev : NULL;
}
/**
......
drivers/acpi/glue.c
View file @ 2a893f91
......@@ -18,9 +18,14 @@
#define ACPI_GLUE_DEBUG 0
#if ACPI_GLUE_DEBUG
#define DBG(x...) printk(PREFIX x)
#define DBG(fmt, ...) \
printk(KERN_DEBUG PREFIX fmt, ##__VA_ARGS__)
#else
#define DBG(x...) do { } while(0)
#define DBG(fmt, ...) \
do { \
if (0) \
printk(KERN_DEBUG PREFIX fmt, ##__VA_ARGS__); \
} while (0)
#endif
static LIST_HEAD(bus_type_list);
static DECLARE_RWSEM(bus_type_sem);
......
drivers/acpi/power.c
View file @ 2a893f91
......@@ -445,11 +445,8 @@ int acpi_power_resource_register_device(struct device *dev, acpi_handle handle)
return -ENODEV;
ret = acpi_bus_get_device(handle, &acpi_dev);
if (ret)
goto no_power_resource;
if (!acpi_dev->power.flags.power_resources)
goto no_power_resource;
if (ret || !acpi_dev->power.flags.power_resources)
return -ENODEV;
powered_device = kzalloc(sizeof(*powered_device), GFP_KERNEL);
if (!powered_device)
......@@ -471,10 +468,6 @@ int acpi_power_resource_register_device(struct device *dev, acpi_handle handle)
}
return ret;
no_power_resource:
printk(KERN_DEBUG PREFIX "Invalid Power Resource to register!\n");
return -ENODEV;
}
EXPORT_SYMBOL_GPL(acpi_power_resource_register_device);
......
drivers/acpi/scan.c
View file @ 2a893f91
......@@ -1346,7 +1346,7 @@ static void acpi_device_set_id(struct acpi_device *device)
acpi_add_id(device, ACPI_DOCK_HID);
else if (!acpi_ibm_smbus_match(device))
acpi_add_id(device, ACPI_SMBUS_IBM_HID);
else if (!acpi_device_hid(device) &&
else if (list_empty(&device->pnp.ids) &&
ACPI_IS_ROOT_DEVICE(device->parent)) {
acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
......
drivers/base/power/main.c
View file @ 2a893f91
......@@ -513,6 +513,8 @@ static int device_resume_early(struct device *dev, pm_message_t state)
Out:
TRACE_RESUME(error);
pm_runtime_enable(dev);
return error;
}
......@@ -589,8 +591,6 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
if (!dev->power.is_suspended)
goto Unlock;
pm_runtime_enable(dev);
if (dev->pm_domain) {
info = "power domain ";
callback = pm_op(&dev->pm_domain->ops, state);
......@@ -930,6 +930,8 @@ static int device_suspend_late(struct device *dev, pm_message_t state)
pm_callback_t callback = NULL;
char *info = NULL;
__pm_runtime_disable(dev, false);
if (dev->power.syscore)
return 0;
......@@ -1133,11 +1135,8 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
Complete:
complete_all(&dev->power.completion);
if (error)
async_error = error;
else if (dev->power.is_suspended)
__pm_runtime_disable(dev, false);
return error;
}
......
drivers/base/power/qos.c
View file @ 2a893f91
......@@ -542,19 +542,19 @@ int dev_pm_qos_add_ancestor_request(struct device *dev,
struct dev_pm_qos_request *req, s32 value)
{
struct device *ancestor = dev->parent;
int error = -ENODEV;
int ret = -ENODEV;
while (ancestor && !ancestor->power.ignore_children)
ancestor = ancestor->parent;
if (ancestor)
error = dev_pm_qos_add_request(ancestor, req,
ret = dev_pm_qos_add_request(ancestor, req,
DEV_PM_QOS_LATENCY, value);
if (error < 0)
if (ret < 0)
req->dev = NULL;
return error;
return ret;
}
EXPORT_SYMBOL_GPL(dev_pm_qos_add_ancestor_request);
......
drivers/cpufreq/Kconfig
View file @ 2a893f91
......@@ -20,6 +20,9 @@ if CPU_FREQ
config CPU_FREQ_TABLE
tristate
config CPU_FREQ_GOV_COMMON
bool
config CPU_FREQ_STAT
tristate "CPU frequency translation statistics"
select CPU_FREQ_TABLE
......@@ -141,6 +144,7 @@ config CPU_FREQ_GOV_USERSPACE
config CPU_FREQ_GOV_ONDEMAND
tristate "'ondemand' cpufreq policy governor"
select CPU_FREQ_TABLE
select CPU_FREQ_GOV_COMMON
help
'ondemand' - This driver adds a dynamic cpufreq policy governor.
The governor does a periodic polling and
......@@ -159,6 +163,7 @@ config CPU_FREQ_GOV_ONDEMAND
config CPU_FREQ_GOV_CONSERVATIVE
tristate "'conservative' cpufreq governor"
depends on CPU_FREQ
select CPU_FREQ_GOV_COMMON
help
'conservative' - this driver is rather similar to the 'ondemand'
governor both in its source code and its purpose, the difference is
......
drivers/cpufreq/Makefile
View file @ 2a893f91
......@@ -7,8 +7,9 @@ obj-$(CONFIG_CPU_FREQ_STAT) += cpufreq_stats.o
obj-$(CONFIG_CPU_FREQ_GOV_PERFORMANCE) += cpufreq_performance.o
obj-$(CONFIG_CPU_FREQ_GOV_POWERSAVE) += cpufreq_powersave.o
obj-$(CONFIG_CPU_FREQ_GOV_USERSPACE) += cpufreq_userspace.o
obj-$(CONFIG_CPU_FREQ_GOV_ONDEMAND) += cpufreq_ondemand.o cpufreq_governor.o
obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE) += cpufreq_conservative.o cpufreq_governor.o
obj-$(CONFIG_CPU_FREQ_GOV_ONDEMAND) += cpufreq_ondemand.o
obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE) += cpufreq_conservative.o
obj-$(CONFIG_CPU_FREQ_GOV_COMMON) += cpufreq_governor.o
# CPUfreq cross-arch helpers
obj-$(CONFIG_CPU_FREQ_TABLE) += freq_table.o
......
drivers/cpufreq/cpufreq_stats.c
View file @ 2a893f91
......@@ -364,18 +364,21 @@ static int __init cpufreq_stats_init(void)
if (ret)
return ret;
register_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
for_each_online_cpu(cpu)
cpufreq_update_policy(cpu);
ret = cpufreq_register_notifier(&notifier_trans_block,
CPUFREQ_TRANSITION_NOTIFIER);
if (ret) {
cpufreq_unregister_notifier(&notifier_policy_block,
CPUFREQ_POLICY_NOTIFIER);
unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
for_each_online_cpu(cpu)
cpufreq_stats_free_table(cpu);
return ret;
}
register_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
for_each_online_cpu(cpu) {
cpufreq_update_policy(cpu);
}
return 0;
}
static void __exit cpufreq_stats_exit(void)
......
drivers/cpufreq/longhaul.c
View file @ 2a893f91
......@@ -77,7 +77,7 @@ static unsigned int longhaul_index;
static int scale_voltage;
static int disable_acpi_c3;
static int revid_errata;
static int enable;
/* Clock ratios multiplied by 10 */
static int mults[32];
......@@ -965,6 +965,10 @@ static int __init longhaul_init(void)
if (!x86_match_cpu(longhaul_id))
return -ENODEV;
if (!enable) {
printk(KERN_ERR PFX "Option \"enable\" not set. Aborting.\n");
return -ENODEV;
}
#ifdef CONFIG_SMP
if (num_online_cpus() > 1) {
printk(KERN_ERR PFX "More than 1 CPU detected, "
......@@ -1021,6 +1025,10 @@ MODULE_PARM_DESC(scale_voltage, "Scale voltage of processor");
* such. */
module_param(revid_errata, int, 0644);
MODULE_PARM_DESC(revid_errata, "Ignore CPU Revision ID");
/* By default driver is disabled to prevent incompatible
* system freeze. */
module_param(enable, int, 0644);
MODULE_PARM_DESC(enable, "Enable driver");
MODULE_AUTHOR("Dave Jones <davej@redhat.com>");
MODULE_DESCRIPTION("Longhaul driver for VIA Cyrix processors.");
......
drivers/cpuidle/coupled.c
View file @ 2a893f91
......@@ -209,7 +209,7 @@ inline int cpuidle_coupled_set_not_ready(struct cpuidle_coupled *coupled)
int all;
int ret;
all = coupled->online_count || (coupled->online_count << WAITING_BITS);
all = coupled->online_count | (coupled->online_count << WAITING_BITS);
ret = atomic_add_unless(&coupled->ready_waiting_counts,
-MAX_WAITING_CPUS, all);
......
drivers/cpuidle/cpuidle.c
View file @ 2a893f91
......@@ -70,7 +70,7 @@ int cpuidle_play_dead(void)
struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
int i, dead_state = -1;
int power_usage = -1;
int power_usage = INT_MAX;
if (!drv)
return -ENODEV;
......
drivers/cpuidle/driver.c
View file @ 2a893f91
......@@ -235,16 +235,10 @@ EXPORT_SYMBOL_GPL(cpuidle_get_driver);
*/
struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev)
{
struct cpuidle_driver *drv;
if (!dev)
return NULL;
spin_lock(&cpuidle_driver_lock);
drv = __cpuidle_get_cpu_driver(dev->cpu);
spin_unlock(&cpuidle_driver_lock);
return drv;
return __cpuidle_get_cpu_driver(dev->cpu);
}
EXPORT_SYMBOL_GPL(cpuidle_get_cpu_driver);
......
drivers/cpuidle/governors/menu.c
View file @ 2a893f91
......@@ -312,7 +312,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
{
struct menu_device *data = &__get_cpu_var(menu_devices);
int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
int power_usage = -1;
int power_usage = INT_MAX;
int i;
int multiplier;
struct timespec t;
......
drivers/idle/intel_idle.c
View file @ 2a893f91
......@@ -506,7 +506,7 @@ static int intel_idle_cpuidle_driver_init(void)
if (*cpuidle_state_table[cstate].name == '\0')
pr_debug(PREFIX "unaware of model 0x%x"
" MWAIT %d please"
" contact lenb@kernel.org",
" contact lenb@kernel.org\n",
boot_cpu_data.x86_model, cstate);
continue;
}
......
drivers/pnp/interface.c
View file @ 2a893f91
......@@ -298,6 +298,39 @@ static ssize_t pnp_show_current_resources(struct device *dmdev,
return ret;
}
static char *pnp_get_resource_value(char *buf,
unsigned long type,
resource_size_t *start,
resource_size_t *end,
unsigned long *flags)
{
if (start)
*start = 0;
if (end)
*end = 0;
if (flags)
*flags = 0;
/* TBD: allow for disabled resources */
buf = skip_spaces(buf);
if (start) {
*start = simple_strtoull(buf, &buf, 0);
if (end) {
buf = skip_spaces(buf);
if (*buf == '-') {
buf = skip_spaces(buf + 1);
*end = simple_strtoull(buf, &buf, 0);
} else
*end = *start;
}
}
/* TBD: allow for additional flags, e.g., IORESOURCE_WINDOW */
return buf;
}
static ssize_t pnp_set_current_resources(struct device *dmdev,
struct device_attribute *attr,
const char *ubuf, size_t count)
......@@ -305,7 +338,6 @@ static ssize_t pnp_set_current_resources(struct device *dmdev,
struct pnp_dev *dev = to_pnp_dev(dmdev);
char *buf = (void *)ubuf;
int retval = 0;
resource_size_t start, end;
if (dev->status & PNP_ATTACHED) {
retval = -EBUSY;
......@@ -349,6 +381,10 @@ static ssize_t pnp_set_current_resources(struct device *dmdev,
goto done;
}
if (!strnicmp(buf, "set", 3)) {
resource_size_t start;
resource_size_t end;
unsigned long flags;
if (dev->active)
goto done;
buf += 3;
......@@ -357,41 +393,36 @@ static ssize_t pnp_set_current_resources(struct device *dmdev,
while (1) {
buf = skip_spaces(buf);
if (!strnicmp(buf, "io", 2)) {
buf = skip_spaces(buf + 2);
start = simple_strtoul(buf, &buf, 0);
buf = skip_spaces(buf);
if (*buf == '-') {
buf = skip_spaces(buf + 1);
end = simple_strtoul(buf, &buf, 0);
buf = pnp_get_resource_value(buf + 2,
IORESOURCE_IO,
&start, &end,
&flags);
pnp_add_io_resource(dev, start, end, flags);
} else if (!strnicmp(buf, "mem", 3)) {
buf = pnp_get_resource_value(buf + 3,
IORESOURCE_MEM,
&start, &end,
&flags);
pnp_add_mem_resource(dev, start, end, flags);
} else if (!strnicmp(buf, "irq", 3)) {
buf = pnp_get_resource_value(buf + 3,
IORESOURCE_IRQ,
&start, NULL,
&flags);
pnp_add_irq_resource(dev, start, flags);
} else if (!strnicmp(buf, "dma", 3)) {
buf = pnp_get_resource_value(buf + 3,
IORESOURCE_DMA,
&start, NULL,
&flags);
pnp_add_dma_resource(dev, start, flags);
} else if (!strnicmp(buf, "bus", 3)) {
buf = pnp_get_resource_value(buf + 3,
IORESOURCE_BUS,
&start, &end,
NULL);
pnp_add_bus_resource(dev, start, end);
} else
end = start;
pnp_add_io_resource(dev, start, end, 0);
continue;
}
if (!strnicmp(buf, "mem", 3)) {
buf = skip_spaces(buf + 3);
start = simple_strtoul(buf, &buf, 0);
buf = skip_spaces(buf);
if (*buf == '-') {
buf = skip_spaces(buf + 1);
end = simple_strtoul(buf, &buf, 0);
} else
end = start;
pnp_add_mem_resource(dev, start, end, 0);
continue;
}
if (!strnicmp(buf, "irq", 3)) {
buf = skip_spaces(buf + 3);
start = simple_strtoul(buf, &buf, 0);
pnp_add_irq_resource(dev, start, 0);
continue;
}
if (!strnicmp(buf, "dma", 3)) {
buf = skip_spaces(buf + 3);
start = simple_strtoul(buf, &buf, 0);
pnp_add_dma_resource(dev, start, 0);
continue;
}
break;
}
mutex_unlock(&pnp_res_mutex);
......
drivers/pnp/manager.c
View file @ 2a893f91
......@@ -18,11 +18,27 @@
DEFINE_MUTEX(pnp_res_mutex);
static struct resource *pnp_find_resource(struct pnp_dev *dev,
unsigned char rule,
unsigned long type,
unsigned int bar)
{
struct resource *res = pnp_get_resource(dev, type, bar);
/* when the resource already exists, set its resource bits from rule */
if (res) {
res->flags &= ~IORESOURCE_BITS;
res->flags |= rule & IORESOURCE_BITS;
}
return res;
}
static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
{
struct resource *res, local_res;
res = pnp_get_resource(dev, IORESOURCE_IO, idx);
res = pnp_find_resource(dev, rule->flags, IORESOURCE_IO, idx);
if (res) {
pnp_dbg(&dev->dev, " io %d already set to %#llx-%#llx "
"flags %#lx\n", idx, (unsigned long long) res->start,
......@@ -65,7 +81,7 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
{
struct resource *res, local_res;
res = pnp_get_resource(dev, IORESOURCE_MEM, idx);
res = pnp_find_resource(dev, rule->flags, IORESOURCE_MEM, idx);
if (res) {
pnp_dbg(&dev->dev, " mem %d already set to %#llx-%#llx "
"flags %#lx\n", idx, (unsigned long long) res->start,
......@@ -78,6 +94,7 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
res->start = 0;
res->end = 0;
/* ??? rule->flags restricted to 8 bits, all tests bogus ??? */
if (!(rule->flags & IORESOURCE_MEM_WRITEABLE))
res->flags |= IORESOURCE_READONLY;
if (rule->flags & IORESOURCE_MEM_CACHEABLE)
......@@ -123,7 +140,7 @@ static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
};
res = pnp_get_resource(dev, IORESOURCE_IRQ, idx);
res = pnp_find_resource(dev, rule->flags, IORESOURCE_IRQ, idx);
if (res) {
pnp_dbg(&dev->dev, " irq %d already set to %d flags %#lx\n",
idx, (int) res->start, res->flags);
......@@ -182,7 +199,7 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
1, 3, 5, 6, 7, 0, 2, 4
};
res = pnp_get_resource(dev, IORESOURCE_DMA, idx);
res = pnp_find_resource(dev, rule->flags, IORESOURCE_DMA, idx);
if (res) {
pnp_dbg(&dev->dev, " dma %d already set to %d flags %#lx\n",
idx, (int) res->start, res->flags);
......
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