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ACPICA: Tables: Add new table events indicating table installation/uninstallation

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ACPICA commit ed6a5fbc694f3a27d93014391aa9a6f6fe490461

This patch adds 2 new table events to indicate table
installation/uninstallation.

Currently, as ACPICA never uninstalls tables, this patch thus only adds
table handler invocation for the table installation event. Lv Zheng.

The 2 events are to be used to fix a sysfs table handling issue related to
LoadTable opcode (see Link # [1] below). The actual sysfs fixing code is
not included, the sysfs fixes will be sent as separate patches.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=150841 # [1]
Link: https://github.com/acpica/acpica/commit/ed6a5fbc
Reported-by: Jason Voelz <jason.voelz@intel.com>
Reported-by: Francisco Leoner <francisco.j.lenoer.soto@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lv Zheng 2016-09-07 14:06:32 +08:00 committed by Rafael J. Wysocki
parent 6eecbc9b8a
commit bdbe5df025
2 changed files with 11 additions and 1 deletions
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8
drivers/acpi/acpica/tbinstal.c
View file

@ -301,6 +301,14 @@ acpi_tb_install_standard_table(acpi_physical_address address,
acpi_tb_install_table_with_override(&new_table_desc, override,
table_index);
/* Invoke table handler if present */
if (acpi_gbl_table_handler) {
(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_INSTALL,
new_table_desc.pointer,
acpi_gbl_table_handler_context);
}
release_and_exit:
/* Release the temporary table descriptor */

4
include/acpi/actypes.h
View file

@ -1089,7 +1089,9 @@ acpi_status (*acpi_table_handler) (u32 event, void *table, void *context);
#define ACPI_TABLE_EVENT_LOAD 0x0
#define ACPI_TABLE_EVENT_UNLOAD 0x1
#define ACPI_NUM_TABLE_EVENTS 2
#define ACPI_TABLE_EVENT_INSTALL 0x2
#define ACPI_TABLE_EVENT_UNINSTALL 0x3
#define ACPI_NUM_TABLE_EVENTS 4
/* Address Spaces (For Operation Regions) */