linux-stable.git/drivers/acpi/debug.c, branch linux-2.6.33.y Linux kernel stable tree ACPI: add kernel tainting after overriding an ACPI control method 2009-12-16T03:52:19+00:00 Zhang Rui rui.zhang@intel.com 2009-12-14T03:24:18+00:00 4bab30a041a2f27807b0b2a7fd36c8c8695c90c8 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> 
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>
ACPI: support customizing ACPI control methods at runtime 2009-12-11T06:50:08+00:00 Zhang Rui rui.zhang@intel.com 2009-12-02T05:31:00+00:00 a1a541d86f50a9957beeedb122a035870d602647 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> 
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>
acpi: switch /proc/acpi/{debug_layer,debug_level} to seq_file 2009-09-19T05:38:57+00:00 Alexey Dobriyan adobriyan@gmail.com 2009-09-18T19:41:08+00:00 7d7decb213a65dea0973ed980c02dae2b1b88dbe 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> 
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>
Merge branch 'acpi-modparam' into release 2009-04-05T05:45:50+00:00 Len Brown len.brown@intel.com 2009-04-05T05:45:50+00:00 edd84690d15e4cb144cc60b754d4eaf8fac0a711 Conflicts: drivers/acpi/Makefile Signed-off-by: Len Brown <len.brown@intel.com> 
Conflicts:
	drivers/acpi/Makefile

Signed-off-by: Len Brown <len.brown@intel.com>
ACPI: simplify module_param namespace 2009-04-02T20:38:11+00:00 Rusty Russell rusty@rustcorp.com.au 2009-03-11T22:37:19+00:00 5b5d9117407e790ade594687010343c5d559a1f4 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> 
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>
ACPI: call acpi_debug_init() explicitly rather than as initcall 2009-03-27T16:50:29+00:00 Bjorn Helgaas bjorn.helgaas@hp.com 2009-03-24T22:50:03+00:00 84f810c33f695e020776ce66c903e0b41872f1b2 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> 
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>
ACPI: remove private acpica headers from driver files 2008-12-31T06:15:22+00:00 Lin Ming ming.m.lin@intel.com 2008-12-16T08:28:17+00:00 ea7e96e0f2277107d9ea14c3f16c86ba82b2e560 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> 
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>
ACPI: add driver component definitions to sysfs debug_layers 2008-11-08T02:45:04+00:00 Bjorn Helgaas bjorn.helgaas@hp.com 2008-11-07T23:57:55+00:00 bdd7279919f682da8752fb47784a1ee302f8b7ea /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> 
/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>
ACPICA: Remove obsolete debug levels (WARN and ERROR) 2008-10-23T03:14:42+00:00 Bob Moore robert.moore@intel.com 2008-09-28T07:00:47+00:00 23d3e055beb12db2a3b91dfeee474c4d5ecc13b9 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> 
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>
ACPI: add control method tracing support 2007-11-19T17:25:46+00:00 Zhang Rui rui.zhang@intel.com 2007-11-15T00:38:40+00:00 4169c45f179e285feac6bcf25f4bd0db6b109bab 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> 
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>