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Linux 4.7

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Merge tag 'v4.7' into for-linus/pstore

Linux 4.7
This commit is contained in:
Kees Cook 2016-07-25 13:50:36 -07:00
commit 74e630a758
1442 changed files with 15098 additions and 8881 deletions
Download patch file Download diff file Expand all files Collapse all files

4
drivers/acpi/acpi_dbg.c
View file

@ -602,7 +602,7 @@ static int acpi_aml_read_user(char __user *buf, int len)
crc->tail = (crc->tail + n) & (ACPI_AML_BUF_SIZE - 1);
ret = n;
out:
acpi_aml_unlock_fifo(ACPI_AML_OUT_USER, !ret);
acpi_aml_unlock_fifo(ACPI_AML_OUT_USER, ret >= 0);
return ret;
}
@ -672,7 +672,7 @@ static int acpi_aml_write_user(const char __user *buf, int len)
crc->head = (crc->head + n) & (ACPI_AML_BUF_SIZE - 1);
ret = n;
out:
acpi_aml_unlock_fifo(ACPI_AML_IN_USER, !ret);
acpi_aml_unlock_fifo(ACPI_AML_IN_USER, ret >= 0);
return n;
}

9
drivers/acpi/acpi_processor.c
View file

@ -331,15 +331,6 @@ static int acpi_processor_get_info(struct acpi_device *device)
pr->throttling.duty_width = acpi_gbl_FADT.duty_width;
pr->pblk = object.processor.pblk_address;
/*
* We don't care about error returns - we just try to mark
* these reserved so that nobody else is confused into thinking
* that this region might be unused..
*
* (In particular, allocating the IO range for Cardbus)
*/
request_region(pr->throttling.address, 6, "ACPI CPU throttle");
}
/*

9
drivers/acpi/acpi_video.c
View file

@ -754,7 +754,8 @@ static int acpi_video_bqc_quirk(struct acpi_video_device *device,
}
int acpi_video_get_levels(struct acpi_device *device,
struct acpi_video_device_brightness **dev_br)
struct acpi_video_device_brightness **dev_br,
int *pmax_level)
{
union acpi_object *obj = NULL;
int i, max_level = 0, count = 0, level_ac_battery = 0;
@ -841,6 +842,8 @@ int acpi_video_get_levels(struct acpi_device *device,
br->count = count;
*dev_br = br;
if (pmax_level)
*pmax_level = max_level;
out:
kfree(obj);
@ -869,7 +872,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
struct acpi_video_device_brightness *br = NULL;
int result = -EINVAL;
result = acpi_video_get_levels(device->dev, &br);
result = acpi_video_get_levels(device->dev, &br, &max_level);
if (result)
return result;
device->brightness = br;
@ -1737,7 +1740,7 @@ static void acpi_video_run_bcl_for_osi(struct acpi_video_bus *video)
mutex_lock(&video->device_list_lock);
list_for_each_entry(dev, &video->video_device_list, entry) {
if (!acpi_video_device_lcd_query_levels(dev, &levels))
if (!acpi_video_device_lcd_query_levels(dev->dev->handle, &levels))
kfree(levels);
}
mutex_unlock(&video->device_list_lock);

167
drivers/acpi/acpica/hwregs.c
View file

@ -83,27 +83,22 @@ acpi_hw_write_multiple(u32 value,
static u8
acpi_hw_get_access_bit_width(struct acpi_generic_address *reg, u8 max_bit_width)
{
u64 address;
if (!reg->access_width) {
if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
max_bit_width = 32;
}
/*
* Detect old register descriptors where only the bit_width field
* makes senses. The target address is copied to handle possible
* alignment issues.
* makes senses.
*/
ACPI_MOVE_64_TO_64(&address, &reg->address);
if (!reg->bit_offset && reg->bit_width &&
if (reg->bit_width < max_bit_width &&
!reg->bit_offset && reg->bit_width &&
ACPI_IS_POWER_OF_TWO(reg->bit_width) &&
ACPI_IS_ALIGNED(reg->bit_width, 8) &&
ACPI_IS_ALIGNED(address, reg->bit_width)) {
ACPI_IS_ALIGNED(reg->bit_width, 8)) {
return (reg->bit_width);
} else {
if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
return (32);
} else {
return (max_bit_width);
}
}
return (max_bit_width);
} else {
return (1 << (reg->access_width + 2));
}
@ -311,12 +306,6 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
{
u64 address;
u8 access_width;
u32 bit_width;
u8 bit_offset;
u64 value64;
u32 new_value32, old_value32;
u8 index;
acpi_status status;
ACPI_FUNCTION_NAME(hw_write);
@ -328,145 +317,23 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
return (status);
}
/* Convert access_width into number of bits based */
access_width = acpi_hw_get_access_bit_width(reg, 32);
bit_width = reg->bit_offset + reg->bit_width;
bit_offset = reg->bit_offset;
/*
* Two address spaces supported: Memory or IO. PCI_Config is
* not supported here because the GAS structure is insufficient
*/
index = 0;
while (bit_width) {
/*
* Use offset style bit reads because "Index * AccessWidth" is
* ensured to be less than 32-bits by acpi_hw_validate_register().
*/
new_value32 = ACPI_GET_BITS(&value, index * access_width,
ACPI_MASK_BITS_ABOVE_32
(access_width));
if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
status = acpi_os_write_memory((acpi_physical_address)
address, (u64)value,
reg->bit_width);
} else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
if (bit_offset >= access_width) {
bit_offset -= access_width;
} else {
/*
* Use offset style bit masks because access_width is ensured
* to be less than 32-bits by acpi_hw_validate_register() and
* bit_offset/bit_width is less than access_width here.
*/
if (bit_offset) {
new_value32 &= ACPI_MASK_BITS_BELOW(bit_offset);
}
if (bit_width < access_width) {
new_value32 &= ACPI_MASK_BITS_ABOVE(bit_width);
}
if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
if (bit_offset || bit_width < access_width) {
/*
* Read old values in order not to modify the bits that
* are beyond the register bit_width/bit_offset setting.
*/
status =
acpi_os_read_memory((acpi_physical_address)
address +
index *
ACPI_DIV_8
(access_width),
&value64,
access_width);
old_value32 = (u32)value64;
/*
* Use offset style bit masks because access_width is
* ensured to be less than 32-bits by
* acpi_hw_validate_register() and bit_offset/bit_width is
* less than access_width here.
*/
if (bit_offset) {
old_value32 &=
ACPI_MASK_BITS_ABOVE
(bit_offset);
bit_offset = 0;
}
if (bit_width < access_width) {
old_value32 &=
ACPI_MASK_BITS_BELOW
(bit_width);
}
new_value32 |= old_value32;
}
value64 = (u64)new_value32;
status =
acpi_os_write_memory((acpi_physical_address)
address +
index *
ACPI_DIV_8
(access_width),
value64, access_width);
} else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
if (bit_offset || bit_width < access_width) {
/*
* Read old values in order not to modify the bits that
* are beyond the register bit_width/bit_offset setting.
*/
status =
acpi_hw_read_port((acpi_io_address)
address +
index *
ACPI_DIV_8
(access_width),
&old_value32,
access_width);
/*
* Use offset style bit masks because access_width is
* ensured to be less than 32-bits by
* acpi_hw_validate_register() and bit_offset/bit_width is
* less than access_width here.
*/
if (bit_offset) {
old_value32 &=
ACPI_MASK_BITS_ABOVE
(bit_offset);
bit_offset = 0;
}
if (bit_width < access_width) {
old_value32 &=
ACPI_MASK_BITS_BELOW
(bit_width);
}
new_value32 |= old_value32;
}
status = acpi_hw_write_port((acpi_io_address)
address +
index *
ACPI_DIV_8
(access_width),
new_value32,
access_width);
}
}
/*
* Index * access_width is ensured to be less than 32-bits by
* acpi_hw_validate_register().
*/
bit_width -=
bit_width > access_width ? access_width : bit_width;
index++;
status = acpi_hw_write_port((acpi_io_address)
address, value, reg->bit_width);
}
ACPI_DEBUG_PRINT((ACPI_DB_IO,
"Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n",
value, access_width, ACPI_FORMAT_UINT64(address),
value, reg->bit_width, ACPI_FORMAT_UINT64(address),
acpi_ut_get_region_name(reg->space_id)));
return (status);

2
drivers/acpi/bus.c
View file

@ -1051,7 +1051,7 @@ static int __init acpi_bus_init(void)
* Maybe EC region is required at bus_scan/acpi_get_devices. So it
* is necessary to enable it as early as possible.
*/
acpi_boot_ec_enable();
acpi_ec_dsdt_probe();
printk(KERN_INFO PREFIX "Interpreter enabled\n");

44
drivers/acpi/ec.c
View file

@ -1331,8 +1331,6 @@ static int ec_install_handlers(struct acpi_ec *ec)
static void ec_remove_handlers(struct acpi_ec *ec)
{
acpi_ec_stop(ec, false);
if (test_bit(EC_FLAGS_EC_HANDLER_INSTALLED, &ec->flags)) {
if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
@ -1340,6 +1338,19 @@ static void ec_remove_handlers(struct acpi_ec *ec)
clear_bit(EC_FLAGS_EC_HANDLER_INSTALLED, &ec->flags);
}
/*
* Stops handling the EC transactions after removing the operation
* region handler. This is required because _REG(DISCONNECT)
* invoked during the removal can result in new EC transactions.
*
* Flushes the EC requests and thus disables the GPE before
* removing the GPE handler. This is required by the current ACPICA
* GPE core. ACPICA GPE core will automatically disable a GPE when
* it is indicated but there is no way to handle it. So the drivers
* must disable the GPEs prior to removing the GPE handlers.
*/
acpi_ec_stop(ec, false);
if (test_bit(EC_FLAGS_GPE_HANDLER_INSTALLED, &ec->flags)) {
if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
&acpi_ec_gpe_handler)))
@ -1446,10 +1457,30 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context)
return AE_OK;
}
int __init acpi_boot_ec_enable(void)
static const struct acpi_device_id ec_device_ids[] = {
{"PNP0C09", 0},
{"", 0},
};
int __init acpi_ec_dsdt_probe(void)
{
if (!boot_ec)
acpi_status status;
if (boot_ec)
return 0;
/*
* Finding EC from DSDT if there is no ECDT EC available. When this
* function is invoked, ACPI tables have been fully loaded, we can
* walk namespace now.
*/
boot_ec = make_acpi_ec();
if (!boot_ec)
return -ENOMEM;
status = acpi_get_devices(ec_device_ids[0].id,
ec_parse_device, boot_ec, NULL);
if (ACPI_FAILURE(status) || !boot_ec->handle)
return -ENODEV;
if (!ec_install_handlers(boot_ec)) {
first_ec = boot_ec;
return 0;
@ -1457,11 +1488,6 @@ int __init acpi_boot_ec_enable(void)
return -EFAULT;
}
static const struct acpi_device_id ec_device_ids[] = {
{"PNP0C09", 0},
{"", 0},
};
#if 0
/*
* Some EC firmware variations refuses to respond QR_EC when SCI_EVT is not

2
drivers/acpi/internal.h
View file

@ -181,7 +181,7 @@ typedef int (*acpi_ec_query_func) (void *data);
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
int acpi_boot_ec_enable(void);
int acpi_ec_dsdt_probe(void);
void acpi_ec_block_transactions(void);
void acpi_ec_unblock_transactions(void);
void acpi_ec_unblock_transactions_early(void);

11
drivers/acpi/nfit.c
View file

@ -928,7 +928,7 @@ static ssize_t format_show(struct device *dev,
{
struct acpi_nfit_control_region *dcr = to_nfit_dcr(dev);
return sprintf(buf, "0x%04x\n", be16_to_cpu(dcr->code));
return sprintf(buf, "0x%04x\n", le16_to_cpu(dcr->code));
}
static DEVICE_ATTR_RO(format);
@ -961,8 +961,8 @@ static ssize_t format1_show(struct device *dev,
continue;
if (nfit_dcr->dcr->code == dcr->code)
continue;
rc = sprintf(buf, "%#x\n",
be16_to_cpu(nfit_dcr->dcr->code));
rc = sprintf(buf, "0x%04x\n",
le16_to_cpu(nfit_dcr->dcr->code));
break;
}
if (rc != ENXIO)
@ -1151,9 +1151,10 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
if (disable_vendor_specific)
dsm_mask &= ~(1 << 8);
} else {
dev_err(dev, "unknown dimm command family\n");
dev_dbg(dev, "unknown dimm command family\n");
nfit_mem->family = -1;
return force_enable_dimms ? 0 : -ENODEV;
/* DSMs are optional, continue loading the driver... */
return 0;
}
uuid = to_nfit_uuid(nfit_mem->family);

10
drivers/acpi/nfit.h
View file

@ -53,12 +53,12 @@ enum nfit_uuids {
};
/*
* Region format interface codes are stored as an array of bytes in the
* NFIT DIMM Control Region structure
* Region format interface codes are stored with the interface as the
* LSB and the function as the MSB.
*/
#define NFIT_FIC_BYTE cpu_to_be16(0x101) /* byte-addressable energy backed */
#define NFIT_FIC_BLK cpu_to_be16(0x201) /* block-addressable non-energy backed */
#define NFIT_FIC_BYTEN cpu_to_be16(0x301) /* byte-addressable non-energy backed */
#define NFIT_FIC_BYTE cpu_to_le16(0x101) /* byte-addressable energy backed */
#define NFIT_FIC_BLK cpu_to_le16(0x201) /* block-addressable non-energy backed */
#define NFIT_FIC_BYTEN cpu_to_le16(0x301) /* byte-addressable non-energy backed */
enum {
NFIT_BLK_READ_FLUSH = 1,

63
drivers/acpi/pci_link.c
View file

@ -470,6 +470,7 @@ static int acpi_irq_pci_sharing_penalty(int irq)
{
struct acpi_pci_link *link;
int penalty = 0;
int i;
list_for_each_entry(link, &acpi_link_list, list) {
/*
@ -478,18 +479,14 @@ static int acpi_irq_pci_sharing_penalty(int irq)
*/
if (link->irq.active && link->irq.active == irq)
penalty += PIRQ_PENALTY_PCI_USING;
else {
int i;
/*
* If a link is inactive, penalize the IRQs it
* might use, but not as severely.
*/
for (i = 0; i < link->irq.possible_count; i++)
if (link->irq.possible[i] == irq)
penalty += PIRQ_PENALTY_PCI_POSSIBLE /
link->irq.possible_count;
}
/*
* penalize the IRQs PCI might use, but not as severely.
*/
for (i = 0; i < link->irq.possible_count; i++)
if (link->irq.possible[i] == irq)
penalty += PIRQ_PENALTY_PCI_POSSIBLE /
link->irq.possible_count;
}
return penalty;
@ -499,9 +496,6 @@ static int acpi_irq_get_penalty(int irq)
{
int penalty = 0;
if (irq < ACPI_MAX_ISA_IRQS)
penalty += acpi_isa_irq_penalty[irq];
/*
* Penalize IRQ used by ACPI SCI. If ACPI SCI pin attributes conflict
* with PCI IRQ attributes, mark ACPI SCI as ISA_ALWAYS so it won't be
@ -516,10 +510,49 @@ static int acpi_irq_get_penalty(int irq)
penalty += PIRQ_PENALTY_PCI_USING;
}
if (irq < ACPI_MAX_ISA_IRQS)
return penalty + acpi_isa_irq_penalty[irq];
penalty += acpi_irq_pci_sharing_penalty(irq);
return penalty;
}
int __init acpi_irq_penalty_init(void)
{
struct acpi_pci_link *link;
int i;
/*
* Update penalties to facilitate IRQ balancing.
*/
list_for_each_entry(link, &acpi_link_list, list) {
/*
* reflect the possible and active irqs in the penalty table --
* useful for breaking ties.
*/
if (link->irq.possible_count) {
int penalty =
PIRQ_PENALTY_PCI_POSSIBLE /
link->irq.possible_count;
for (i = 0; i < link->irq.possible_count; i++) {
if (link->irq.possible[i] < ACPI_MAX_ISA_IRQS)
acpi_isa_irq_penalty[link->irq.
possible[i]] +=
penalty;
}
} else if (link->irq.active &&
(link->irq.active < ACPI_MAX_ISA_IRQS)) {
acpi_isa_irq_penalty[link->irq.active] +=
PIRQ_PENALTY_PCI_POSSIBLE;
}
}
return 0;
}
static int acpi_irq_balance = -1; /* 0: static, 1: balance */
static int acpi_pci_link_allocate(struct acpi_pci_link *link)
@ -839,7 +872,7 @@ void acpi_penalize_isa_irq(int irq, int active)
{
if ((irq >= 0) && (irq < ARRAY_SIZE(acpi_isa_irq_penalty)))
acpi_isa_irq_penalty[irq] = acpi_irq_get_penalty(irq) +
active ? PIRQ_PENALTY_ISA_USED : PIRQ_PENALTY_PCI_USING;
(active ? PIRQ_PENALTY_ISA_USED : PIRQ_PENALTY_PCI_USING);
}
bool acpi_isa_irq_available(int irq)

9
drivers/acpi/processor_throttling.c
View file

@ -676,6 +676,15 @@ static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)
if (!pr->flags.throttling)
return -ENODEV;
/*
* We don't care about error returns - we just try to mark
* these reserved so that nobody else is confused into thinking
* that this region might be unused..
*
* (In particular, allocating the IO range for Cardbus)
*/
request_region(pr->throttling.address, 6, "ACPI CPU throttle");
pr->throttling.state = 0;
duty_mask = pr->throttling.state_count - 1;