dect/linux-2.6
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Merge branch 'bugzilla-13620' into release

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This commit is contained in:
Len Brown 2009-09-19 02:09:37 -04:00
commit bf25400e88
3 changed files with 100 additions and 3 deletions
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6
drivers/acpi/acpica/utdelete.c
View file

@ -215,6 +215,12 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
"***** Region %p\n", object));
/* Invalidate the region address/length via the host OS */
acpi_os_invalidate_address(object->region.space_id,
object->region.address,
(acpi_size) object->region.length);
second_desc = acpi_ns_get_secondary_object(object);
if (second_desc) {
/*

94
drivers/acpi/osl.c
View file

@ -88,6 +88,7 @@ struct acpi_res_list {
char name[5]; /* only can have a length of 4 chars, make use of this
one instead of res->name, no need to kalloc then */
struct list_head resource_list;
int count;
};
static LIST_HEAD(resource_list_head);
@ -1358,6 +1359,89 @@ acpi_os_validate_interface (char *interface)
return AE_SUPPORT;
}
static inline int acpi_res_list_add(struct acpi_res_list *res)
{
struct acpi_res_list *res_list_elem;
list_for_each_entry(res_list_elem, &resource_list_head,
resource_list) {
if (res->resource_type == res_list_elem->resource_type &&
res->start == res_list_elem->start &&
res->end == res_list_elem->end) {
/*
* The Region(addr,len) already exist in the list,
* just increase the count
*/
res_list_elem->count++;
return 0;
}
}
res->count = 1;
list_add(&res->resource_list, &resource_list_head);
return 1;
}
static inline void acpi_res_list_del(struct acpi_res_list *res)
{
struct acpi_res_list *res_list_elem;
list_for_each_entry(res_list_elem, &resource_list_head,
resource_list) {
if (res->resource_type == res_list_elem->resource_type &&
res->start == res_list_elem->start &&
res->end == res_list_elem->end) {
/*
* If the res count is decreased to 0,
* remove and free it
*/
if (--res_list_elem->count == 0) {
list_del(&res_list_elem->resource_list);
kfree(res_list_elem);
}
return;
}
}
}
acpi_status
acpi_os_invalidate_address(
u8 space_id,
acpi_physical_address address,
acpi_size length)
{
struct acpi_res_list res;
switch (space_id) {
case ACPI_ADR_SPACE_SYSTEM_IO:
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
/* Only interference checks against SystemIO and SytemMemory
are needed */
res.start = address;
res.end = address + length - 1;
res.resource_type = space_id;
spin_lock(&acpi_res_lock);
acpi_res_list_del(&res);
spin_unlock(&acpi_res_lock);
break;
case ACPI_ADR_SPACE_PCI_CONFIG:
case ACPI_ADR_SPACE_EC:
case ACPI_ADR_SPACE_SMBUS:
case ACPI_ADR_SPACE_CMOS:
case ACPI_ADR_SPACE_PCI_BAR_TARGET:
case ACPI_ADR_SPACE_DATA_TABLE:
case ACPI_ADR_SPACE_FIXED_HARDWARE:
break;
}
return AE_OK;
}
/******************************************************************************
*
* FUNCTION: acpi_os_validate_address
@ -1382,6 +1466,7 @@ acpi_os_validate_address (
char *name)
{
struct acpi_res_list *res;
int added;
if (acpi_enforce_resources == ENFORCE_RESOURCES_NO)
return AE_OK;
@ -1399,14 +1484,17 @@ acpi_os_validate_address (
res->end = address + length - 1;
res->resource_type = space_id;
spin_lock(&acpi_res_lock);
list_add(&res->resource_list, &resource_list_head);
added = acpi_res_list_add(res);
spin_unlock(&acpi_res_lock);
pr_debug("Added %s resource: start: 0x%llx, end: 0x%llx, "
"name: %s\n", (space_id == ACPI_ADR_SPACE_SYSTEM_IO)
pr_debug("%s %s resource: start: 0x%llx, end: 0x%llx, "
"name: %s\n", added ? "Added" : "Already exist",
(space_id == ACPI_ADR_SPACE_SYSTEM_IO)
? "SystemIO" : "System Memory",
(unsigned long long)res->start,
(unsigned long long)res->end,
res->name);
if (!added)
kfree(res);
break;
case ACPI_ADR_SPACE_PCI_CONFIG:
case ACPI_ADR_SPACE_EC:

3
include/acpi/acpiosxf.h
View file

@ -245,6 +245,9 @@ acpi_status acpi_osi_invalidate(char* interface);
acpi_status
acpi_os_validate_address(u8 space_id, acpi_physical_address address,
acpi_size length, char *name);
acpi_status
acpi_os_invalidate_address(u8 space_id, acpi_physical_address address,
acpi_size length);
u64 acpi_os_get_timer(void);