Commit Graph

16 Commits

Author SHA1 Message Date
Zhang Rui
4bab30a041 ACPI: add kernel tainting after overriding an ACPI control method
Add kernel tainting after overriding an ACPI control method successfully.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-15 22:52:19 -05:00
Zhang Rui
a1a541d86f ACPI: support customizing ACPI control methods at runtime
Introduce a new debugfs I/F (/sys/kernel/debug/acpi/custom_method) for ACPI,
which can be used to customize the ACPI control methods at runtime.

We can use this to debug the AML code level bugs instead of overriding the
whole DSDT table, without rebuilding/rebooting kernel any more.

Detailed description about how to use this debugfs I/F is stated in
Documentation/acpi/method-customizing.txt

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-11 01:50:08 -05:00
Alexey Dobriyan
7d7decb213 acpi: switch /proc/acpi/{debug_layer,debug_level} to seq_file
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-09-19 01:38:57 -04:00
Len Brown
edd84690d1 Merge branch 'acpi-modparam' into release
Conflicts:
	drivers/acpi/Makefile

Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-05 01:45:50 -04:00
Rusty Russell
5b5d911740 ACPI: simplify module_param namespace
Impact: cleanup

Rather than overriding MODULE_PARAM_PREFIX, build via acpi.o so
KBUILD_MODNAME is set to "acpi".

This is the logical way to do it, even though acpi cannot be a module
due to these config options being bool.  Those parts of ACPI which can
be modular are not built into the acpi "module".

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-02 16:38:11 -04:00
Bjorn Helgaas
84f810c33f ACPI: call acpi_debug_init() explicitly rather than as initcall
This patch makes acpi_init() call acpi_debug_init() directly.
Previously, both were subsys_initcalls.  acpi_debug_init()
must happen after acpi_init(), and it's better to call it
explicitly rather than rely on link ordering.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-27 12:50:29 -04:00
Lin Ming
ea7e96e0f2 ACPI: remove private acpica headers from driver files
External driver files should not include any private acpica headers.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-12-31 01:15:22 -05:00
Bjorn Helgaas
bdd7279919 ACPI: add driver component definitions to sysfs debug_layers
/sys/module/acpi/parameters/debug_layers used to contain only the
debug layers defined by the ACPI CA.  This patch adds the additional
layer definitions for ACPI drivers.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-11-07 21:45:04 -05:00
Bob Moore
23d3e055be ACPICA: Remove obsolete debug levels (WARN and ERROR)
Removed ACPI_DB_WARN and ACPI_DB_ERROR. These debug levels were
made obsolete by the ACPI_WARNING and ACPI_ERROR/ACPI_EXCEPTION
interfaces.  Also added ACPI_DB_EVENTS to correspond with the
existing ACPI_LV_EVENTS.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-22 23:14:42 -04:00
Zhang Rui
4169c45f17 ACPI: add control method tracing support
Add debug tracing support during certain AML method execution.

Four more module parameters are created under /sys/module/acpi/parameters/:
trace_method_name:	the AML method name that user wants to trace

trace_debug_layer:	the temporary debug_layer used when tracing the method.
			Using 0xffffffff by default if it is 0.

trace_debug_level:	the temporary debug_level used when tracing the method.
			Using 0x00ffffff by default if it is 0.

trace_state:		The status of the tracing feature.
			"enabled" means this feature is enabled
			and the AML method is traced every time it's executed.
			"1" means this feature is enabled and the AML method
			will only be traced during the next execution.
			"disabled" means this feature is disabled.
			Users can enable/disable this debug tracing feature by
			"echo string > /sys/module/acpi/parameters/trace_state".
			"string" should be one of "enable", "disable" and "1".

http://bugzilla.kernel.org/show_bug.cgi?id=6629

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-19 12:25:46 -05:00
Len Brown
f52fd66d2e ACPI: clean up ACPI_MODULE_NAME() use
cosmetic only

Make "module name" actually match the file name.
Invoke with ';' as leaving it off confuses Lindent and gcc doesn't care.
Fix indentation where Lindent did get confused.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-12 22:42:12 -05:00
Zhang Rui
219c3c8e26 ACPI: add ACPI debug attribute in sysfs
Add ACPI debug attributes in sysfs.
/proc/acpi/debug_layer && debug_level are deprecated by
/sys/module/acpi/parameters/debug_layer && debug_level.

NOTE: The operations to them are quite the same.
E.g. if you want to enable ACPI_DB_INFO, ACPI_DB_WARN,
 ACPI_DB_ERROR and disable the others,
#echo 0x13 >/sys/module/acpi/parameters/debug_level is OK,
and a boot option "acpi.debug_level = 0x13" also works.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-28 22:33:36 -05:00
Patrick Mochel
d550d98d33 ACPI: delete tracing macros from drivers/acpi/*.c
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-27 00:41:40 -04:00
Thomas Renninger
a6fc67202e ACPI: Enable ACPI error messages w/o CONFIG_ACPI_DEBUG
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-26 23:58:43 -04:00
Len Brown
4be44fcd3b [ACPI] Lindent all ACPI files
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-05 00:45:14 -04:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00