linux-toradex.git/include/acpi/acpiosxf.h, branch v4.4.120

ACPICA: Debugger: Add thread ID support so that single step mode can only apply to the debugger thread

2015-10-22T00:05:05+00:00

When the debugger is running in the kernel mode, acpi_db_single_step() may
also be invoked by the kernel runtime code path but the single stepping
command prompt may be erronously logged as the kernel logs and runtime code
path cannot proceed.

This patch fixes this issue by adding acpi_gbl_db_thread_id for the debugger
thread and preventing acpi_db_single_step() to be invoked from other threads.

It is not suitable to add acpi_thread_id parameter for acpi_os_execute() as
the function may be implemented as work queue on some hosts. So it is
better to let the hosts invoke acpi_set_debugger_thread_id(). Currently
acpiexec is not configured as DEBUGGER_MULTI_THREADED, but we can do this.
When we do this, it is better to invoke acpi_set_debugger_thread_id() in
acpi_os_execute() when the execution type is OSL_DEBUGGER_MAIN_THREAD. The
support should look like:
  create_thread(&tid);
  if (type == OSL_DEBUGGER_MAIN_THREAD)
      acpi_set_debugger_thread_id(tid);
  resume_thread(tid);
Similarly, semop() may be used for pthread implementation. But this patch
simply skips debugger thread ID check for application instead of
introducing such complications as there is no need to skip
acpi_db_single_step() for an application debugger - acpiexec.

Note that the debugger thread ID can also be used by acpi_os_printf() to
filter out debugger output. Lv Zheng.

Signed-off-by: Lv Zheng 
Signed-off-by: Rafael J. Wysocki

ACPICA: Executer: Add OSL trace hook support

2015-07-23T21:09:07+00:00

ACPICA commit e8e4a9b19d0b72a7b165398bdc961fc2f6f502ec

This patch adds OSL trace hook support.

OSPMs are encouraged to use acpi_os_trace_point() with
ACPI_USE_SYSTEM_TRACER defined to implement platform specific trace
facility. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/e8e4a9b1
Signed-off-by: Lv Zheng 
Signed-off-by: Bob Moore 
Signed-off-by: Rafael J. Wysocki

ACPI / osl: use same type for acpi_predefined_names values as in definition

2015-05-14T20:16:38+00:00

In the definition of struct acpi_predefined_names, value is of
type char *. Make the OSL override function also work with type
char * (or, more precisely, with a pointer to it).

Signed-off-by: Dominik Brodowski 
Signed-off-by: Rafael J. Wysocki

ACPICA: Update Copyright headers to 2015

2015-02-05T14:31:43+00:00

ACPICA commit 8990e73ab2aa15d6a0068b860ab54feff25bee36

Link: https://github.com/acpica/acpica/commit/8990e73a
Signed-off-by: David E. Box 
Signed-off-by: Bob Moore 
Signed-off-by: Lv Zheng 
Signed-off-by: Rafael J. Wysocki

ACPICA: OSL: Add portable file IO to improve portability

2014-07-08T12:22:25+00:00

This patch adds portable file IO to generic OSL to improve the portability
of the applications.

A portable application may use different file IO interfaces than the
standard C library ones. This patch thus introduces an abstract file IO
layer into the generic OSL.

Note that this patch does not introduce users of such interfaces, further
patches should introduce users one by one carefully with build tests
performed. Lv Zheng.

Signed-off-by: Lv Zheng 
Signed-off-by: Bob Moore 
Signed-off-by: Rafael J. Wysocki

ACPICA: Revert "Headers: Deploy #pragma pack (push) and (pop)."

2014-03-18T00:53:45+00:00

This reverts commit aae576e5faefa8ba70647efa320d4747b6375f1e.
Push and Pop are not portable "enough", and caused problems for
some ACPICA customers.

Signed-off-by: Robert Moore 
Signed-off-by: Lv Zheng 
Signed-off-by: Rafael J. Wysocki

ACPICA: Headers: Deploy #pragma pack (push) and (pop).

2014-02-26T23:45:59+00:00

Use push and pop to both guarantee that the correct alignment is used,
and to restore the alignment to whatever it was before the header
was included.

It is reported that the #pragma pack(push/pop) directives are not supported
by the specific GCCs, but this patch still doesn't affect kernel build
as there are already #pragma pack([1]) directives used in the old ACPICA
headers, which means there shouldn't be GCCs that are currently used to
compile the ACPI kernels do not support #pragma pack() directives.

References: https://bugs.acpica.org/show_bug.cgi?id=1058
Signed-off-by: Bob Moore 
Signed-off-by: Lv Zheng 
Signed-off-by: Rafael J. Wysocki

ACPICA: Update ACPICA copyrights to 2014.

2014-02-10T23:30:25+00:00

Update ACPICA copyrights to 2014. Includes all source headers and
signons for the various tools.

Signed-off-by: Bob Moore 
Signed-off-by: Lv Zheng 
Signed-off-by: Rafael J. Wysocki

ACPICA: Update aclinux.h for new OSL override mechanism.

2013-10-31T13:36:41+00:00

The new ACPICA OSL override mechanism is used to solve these issues
for the Linux OSL:
 1. Linux can implement OSL using a macro.
 2. Linux can implement OSL using an inlined function.
 3. Linux can leave OSL not implemented for __KERNEL__ undefined code
    fragments.
 4. Linux can add sparse declarators (__iomem) to OSL.
 5. Linux can add memory tuning declarators (__init/__exit) to OSL.
This patch also moves Linux specific OSL to aclinux.h which has not been
maintained in the ACPICA code base.  Lv Zheng.

Known issue:

 From ACPICA's perspective, actypes.h should be included after inclusion
 of acenv.h.  But currently in Linux, aclinux.h included by acenv.h has
 included actypes.h to find ACPICA types for inline functions.  This is a
 known and existing issue and currently there is no real problem caused
 by this issue for Linux kernel build.  Thus this issue is not covered by
 this cleanup commit.

Signed-off-by: Lv Zheng 
Signed-off-by: Rafael J. Wysocki

ACPICA: Add support to allow host OS to redefine individual OSL prototypes.

2013-10-31T13:35:50+00:00

This change enables the host OS to redefine OSL prototypes found in the
acpiosxf.h file. This allows the host OS to implement OSL interfaces with
a macro or inlined function. Further, it allows the host OS to add any
additional required modifiers such as __iomem, __init, __exit, etc.,
as necessary on a per-interface basis. Enables maximum flexibility
for the OSL interfaces. Lv Zheng.

Signed-off-by: Lv Zheng 
Signed-off-by: Bob Moore 
Signed-off-by: Rafael J. Wysocki