summaryrefslogtreecommitdiffstats
path: root/drivers/acpi
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/Kconfig7
-rw-r--r--drivers/acpi/Makefile2
-rw-r--r--drivers/acpi/acpica/tbxface.c17
-rw-r--r--drivers/acpi/battery.c25
-rw-r--r--drivers/acpi/ec.c9
-rw-r--r--drivers/acpi/osl.c13
-rw-r--r--drivers/acpi/tables.c20
7 files changed, 72 insertions, 21 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index a7799a99f2d9..8a851d0f4384 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -254,13 +254,6 @@ config ACPI_PCI_SLOT
help you correlate PCI bus addresses with the physical geography
of your slots. If you are unsure, say N.
-config ACPI_SYSTEM
- bool
- default y
- help
- This driver will enable your system to shut down using ACPI, and
- dump your ACPI DSDT table using /proc/acpi/dsdt.
-
config X86_PM_TIMER
bool "Power Management Timer Support" if EMBEDDED
depends on X86
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 65d90c720b5a..b130ea0d0759 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -52,7 +52,7 @@ obj-$(CONFIG_ACPI_PROCESSOR) += processor.o
obj-$(CONFIG_ACPI_CONTAINER) += container.o
obj-$(CONFIG_ACPI_THERMAL) += thermal.o
obj-y += power.o
-obj-$(CONFIG_ACPI_SYSTEM) += system.o event.o
+obj-y += system.o event.o
obj-$(CONFIG_ACPI_DEBUG) += debug.o
obj-$(CONFIG_ACPI_NUMA) += numa.o
obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index c3e841f3cde9..ab0aff3c7d6a 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -365,7 +365,7 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
/*******************************************************************************
*
- * FUNCTION: acpi_get_table
+ * FUNCTION: acpi_get_table_with_size
*
* PARAMETERS: Signature - ACPI signature of needed table
* Instance - Which instance (for SSDTs)
@@ -377,8 +377,9 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
*
*****************************************************************************/
acpi_status
-acpi_get_table(char *signature,
- u32 instance, struct acpi_table_header **out_table)
+acpi_get_table_with_size(char *signature,
+ u32 instance, struct acpi_table_header **out_table,
+ acpi_size *tbl_size)
{
u32 i;
u32 j;
@@ -408,6 +409,7 @@ acpi_get_table(char *signature,
acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]);
if (ACPI_SUCCESS(status)) {
*out_table = acpi_gbl_root_table_list.tables[i].pointer;
+ *tbl_size = acpi_gbl_root_table_list.tables[i].length;
}
if (!acpi_gbl_permanent_mmap) {
@@ -420,6 +422,15 @@ acpi_get_table(char *signature,
return (AE_NOT_FOUND);
}
+acpi_status
+acpi_get_table(char *signature,
+ u32 instance, struct acpi_table_header **out_table)
+{
+ acpi_size tbl_size;
+
+ return acpi_get_table_with_size(signature,
+ instance, out_table, &tbl_size);
+}
ACPI_EXPORT_SYMBOL(acpi_get_table)
/*******************************************************************************
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 65132f920459..69cbc57c2d1c 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -138,6 +138,29 @@ static int acpi_battery_technology(struct acpi_battery *battery)
static int acpi_battery_get_state(struct acpi_battery *battery);
+static int acpi_battery_is_charged(struct acpi_battery *battery)
+{
+ /* either charging or discharging */
+ if (battery->state != 0)
+ return 0;
+
+ /* battery not reporting charge */
+ if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN ||
+ battery->capacity_now == 0)
+ return 0;
+
+ /* good batteries update full_charge as the batteries degrade */
+ if (battery->full_charge_capacity == battery->capacity_now)
+ return 1;
+
+ /* fallback to using design values for broken batteries */
+ if (battery->design_capacity == battery->capacity_now)
+ return 1;
+
+ /* we don't do any sort of metric based on percentages */
+ return 0;
+}
+
static int acpi_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
@@ -155,7 +178,7 @@ static int acpi_battery_get_property(struct power_supply *psy,
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
else if (battery->state & 0x02)
val->intval = POWER_SUPPLY_STATUS_CHARGING;
- else if (battery->state == 0)
+ else if (acpi_battery_is_charged(battery))
val->intval = POWER_SUPPLY_STATUS_FULL;
else
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 5c2f5d343be6..2fe15060dcdc 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -120,6 +120,8 @@ static struct acpi_ec {
spinlock_t curr_lock;
} *boot_ec, *first_ec;
+static int EC_FLAGS_MSI; /* Out-of-spec MSI controller */
+
/* --------------------------------------------------------------------------
Transaction Management
-------------------------------------------------------------------------- */
@@ -259,6 +261,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
acpi_disable_gpe(NULL, ec->gpe);
}
+ if (EC_FLAGS_MSI)
+ udelay(ACPI_EC_DELAY);
/* start transaction */
spin_lock_irqsave(&ec->curr_lock, tmp);
/* following two actions should be kept atomic */
@@ -967,6 +971,11 @@ int __init acpi_ec_ecdt_probe(void)
/*
* Generate a boot ec context
*/
+ if (dmi_name_in_vendors("Micro-Star") ||
+ dmi_name_in_vendors("Notebook")) {
+ pr_info(PREFIX "Enabling special treatment for EC from MSI.\n");
+ EC_FLAGS_MSI = 1;
+ }
status = acpi_get_table(ACPI_SIG_ECDT, 1,
(struct acpi_table_header **)&ecdt_ptr);
if (ACPI_SUCCESS(status)) {
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index b3193ec0a2ef..2b6c59028254 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -272,14 +272,21 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
}
EXPORT_SYMBOL_GPL(acpi_os_map_memory);
-void acpi_os_unmap_memory(void __iomem * virt, acpi_size size)
+void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
{
- if (acpi_gbl_permanent_mmap) {
+ if (acpi_gbl_permanent_mmap)
iounmap(virt);
- }
+ else
+ __acpi_unmap_table(virt, size);
}
EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
+void __init early_acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
+{
+ if (!acpi_gbl_permanent_mmap)
+ __acpi_unmap_table(virt, size);
+}
+
#ifdef ACPI_FUTURE_USAGE
acpi_status
acpi_os_get_physical_address(void *virt, acpi_physical_address * phys)
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index a8852952fac4..fec1ae36d431 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -181,14 +181,15 @@ acpi_table_parse_entries(char *id,
struct acpi_subtable_header *entry;
unsigned int count = 0;
unsigned long table_end;
+ acpi_size tbl_size;
if (!handler)
return -EINVAL;
if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
- acpi_get_table(id, acpi_apic_instance, &table_header);
+ acpi_get_table_with_size(id, acpi_apic_instance, &table_header, &tbl_size);
else
- acpi_get_table(id, 0, &table_header);
+ acpi_get_table_with_size(id, 0, &table_header, &tbl_size);
if (!table_header) {
printk(KERN_WARNING PREFIX "%4.4s not present\n", id);
@@ -206,8 +207,10 @@ acpi_table_parse_entries(char *id,
table_end) {
if (entry->type == entry_id
&& (!max_entries || count++ < max_entries))
- if (handler(entry, table_end))
+ if (handler(entry, table_end)) {
+ early_acpi_os_unmap_memory((char *)table_header, tbl_size);
return -EINVAL;
+ }
entry = (struct acpi_subtable_header *)
((unsigned long)entry + entry->length);
@@ -217,6 +220,7 @@ acpi_table_parse_entries(char *id,
"%i found\n", id, entry_id, count - max_entries, count);
}
+ early_acpi_os_unmap_memory((char *)table_header, tbl_size);
return count;
}
@@ -241,17 +245,19 @@ acpi_table_parse_madt(enum acpi_madt_type id,
int __init acpi_table_parse(char *id, acpi_table_handler handler)
{
struct acpi_table_header *table = NULL;
+ acpi_size tbl_size;
if (!handler)
return -EINVAL;
if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
- acpi_get_table(id, acpi_apic_instance, &table);
+ acpi_get_table_with_size(id, acpi_apic_instance, &table, &tbl_size);
else
- acpi_get_table(id, 0, &table);
+ acpi_get_table_with_size(id, 0, &table, &tbl_size);
if (table) {
handler(table);
+ early_acpi_os_unmap_memory(table, tbl_size);
return 0;
} else
return 1;
@@ -265,8 +271,9 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler)
static void __init check_multiple_madt(void)
{
struct acpi_table_header *table = NULL;
+ acpi_size tbl_size;
- acpi_get_table(ACPI_SIG_MADT, 2, &table);
+ acpi_get_table_with_size(ACPI_SIG_MADT, 2, &table, &tbl_size);
if (table) {
printk(KERN_WARNING PREFIX
"BIOS bug: multiple APIC/MADT found,"
@@ -275,6 +282,7 @@ static void __init check_multiple_madt(void)
"If \"acpi_apic_instance=%d\" works better, "
"notify linux-acpi@vger.kernel.org\n",
acpi_apic_instance ? 0 : 2);
+ early_acpi_os_unmap_memory(table, tbl_size);
} else
acpi_apic_instance = 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-11 23:37:15 +0000