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ACPI: Add support for acpi_load_table/acpi_unload_table_id

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Make acpi_load_table() available for use by removing it from the #ifdef
ACPI_FUTURE_USAGE.

Also add a new routine used to unload an ACPI table of a given type and "id" -
acpi_unload_table_id().  The implementation of this new routine was almost a
direct copy of existing routine acpi_unload_table() - only difference being
that it only removes a specific table id instead of ALL tables of a given
type.  The SN hotplug driver (sgi_hotplug.c) now uses both of these interfaces
to dynamically load and unload SSDT ACPI tables.

Also, a few other ACPI routines now used by the SN hotplug driver are exported
(since the driver can be a loadable module):

 acpi_ns_map_handle_to_node
 acpi_ns_convert_entry_to_handle
 acpi_ns_get_next_node

Signed-off-by: Aaron Young <[email protected]>
Cc: Greg KH <[email protected]>
Cc: "Luck, Tony" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
John Keller 2006-12-19 12:56:19 -08:00 • committed by Len Brown
commit 0f0fe1a08a
3 changed files with 102 additions and 3 deletions
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7
include/acpi/acpixf.h
View file

@ -97,11 +97,12 @@ acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address);
acpi_status acpi_load_tables(void);
#ifdef ACPI_FUTURE_USAGE
acpi_status acpi_load_table(struct acpi_table_header *table_ptr);
acpi_status acpi_unload_table(acpi_table_type table_type);
acpi_status acpi_unload_table_id(acpi_table_type table_type, acpi_owner_id id);
#ifdef ACPI_FUTURE_USAGE
acpi_status acpi_unload_table(acpi_table_type table_type);
acpi_status
acpi_get_table_header(acpi_table_type table_type,
u32 instance, struct acpi_table_header *out_table_header);
@ -180,6 +181,8 @@ acpi_get_next_object(acpi_object_type type,
acpi_status acpi_get_type(acpi_handle object, acpi_object_type * out_type);
acpi_status acpi_get_id(acpi_handle object, acpi_owner_id * out_type);
acpi_status acpi_get_parent(acpi_handle object, acpi_handle * out_handle);
/*