There are a lot userspace approaches to detect the usage of the
platform (laptop, workstation, server, ...) and adjust kernel tunables
accordingly (io/process scheduler, power management, ...).
These approaches need constant maintaining and are ugly to implement
(detect PCMCIA controller -> laptop,
does not work on recent systems anymore, ...)
On ACPI systems there is an easy and reliable way (if implemented
in BIOS and most recent platforms have this value set).
-> export it to userspace.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
Structs battery_file, acpi_dock_ops, file_operations,
thermal_cooling_device_ops, thermal_zone_device_ops, kernel_param_ops
are not changed in runtime. It is safe to make them const.
register_hotplug_dock_device() was altered to take const "ops" argument
to respect acpi_dock_ops' const notion.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
- Move param aml_debug_output to other params into sysfs.c
- Split acpi_debugfs_init to prepare custom_method to be
an own .config option and driver.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: rui.zhang@intel.com
Signed-off-by: Len Brown <len.brown@intel.com>
The global event handler is called whenever a general purpose
or fixed ACPI event occurs.
Also update Linux OSL to collect events counter with
global event handler.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/acpi/sysfs.c:154: warning: passing argument 1 of '__check_old_set_param' from incompatible pointer type
include/linux/moduleparam.h:165: note: expected 'int (*)(const char *, struct kernel_param *)' but argument is of type 'int (*)(const char *, const struct kernel_param *)'
Introduced by commit 1c8fce27e2 ("ACPI:
introduce drivers/acpi/sysfs.c") interacting with commit
9bbb9e5a33 ("param: use ops in struct
kernel_param, rather than get and set fns directly").
Use module_param_cb instead of the obsoleted module_param_call to fix a build warning.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Introduce drivers/acpi/sysfs.c.
code for ACPI sysfs I/F, including
#ifdef ACPI_DEBUG
/sys/module/acpi/parameters/debug_layer
/sys/module/acpi/parameters/debug_level
/sys/module/acpi/parameters/trace_method_name
/sys/module/acpi/parameters/trace_debug_layer
/sys/module/acpi/parameters/trace_debug_level
/sys/module/acpi/parameters/trace_state
#endif
/sys/module/acpi/parameters/acpica_version
/sys/firmware/acpi/tables/
/sys/firmware/acpi/interrupts/
is moved to this file.
No function change in this patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Pavel Vasilyev
Thomas Renninger
Vasiliy Kulikov
Lin Ming
Zhang Rui