linux.git/tools/power/acpi, branch v3.17

ACPICA: utprint/oslibcfs: cleanup - no functional change

2014-07-08T12:22:27+00:00

Some cleanup and comment update.

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

ACPICA: OSL: Update acpidump to reduce source code differences

2014-07-08T12:22:27+00:00

This patch is a result of an ACPICA commit to enables acpidump for EFI. For
Linux kernel, this patch is a no-op. It is only required by the ACPICA
release process to reduce the source code differences between the Linux
kernel and the ACPICA upstream. Lv Zheng.

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

ACPICA: acpidump: Reduce freopen() invocations to improve portability

2014-07-08T12:22:27+00:00

This patch reduces the requirement of invoking freopen() in acpidump in order
to reduce the porting effort of acpidump.

This patch achieves this by turning all acpi_os_printf(stdout) into
acpi_ut_file_printf(gbl_output_file). Lv Zheng.

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

ACPICA: acpidump: Replace file IOs with new APIs to improve portability

2014-07-08T12:22:27+00:00

The new APIs are enabled to offer a portable layer to access files:
 1. acpi_os_XXX_file_XXX: Wrapper of fopen/fclose/fread/fwrite
 2. acpi_os_printf: Wrapper of printf
 3. acpi_log_error: Wrapper of fprintf(stderr)

This patch deploys such mechanisms to acpidump to improve the portability
of this tool. Lv Zheng.

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

ACPICA: acpidump: Remove exit() from generic layer to improve portability

2014-07-08T12:22:27+00:00

This patch removes exit() from generic acpidump code to improve the
portability of this tool. Lv Zheng.

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

ACPICA: acpidump: Add memory/string OSL usage to improve portability

2014-07-08T12:22:27+00:00

This patch adds code to use generic OSL for acpidump to improve the
portability of this tool. Lv Zheng.

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

ACPICA: Common: Enhance acpi_getopt() to improve portability

2014-07-08T12:22:26+00:00

This patch enhances acpi_getopt() by converting the standard C library
invocations into portable ACPI string APIs and acpi_log_error() to improve
portability. Lv Zheng.

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

ACPICA: Common: Enhance cm_get_file_size() to improve portability

2014-07-08T12:22:26+00:00

This patch uses abstract file IO and acpi_log_error() APIs to enhance
cm_get_file_size() so that applications that invoke this API could have
portability improved.

With actual references added to abstract file IO and acpi_log_error(), the
applications need to link oslibcfs.o, utdebug.o, utexcep.o, utmath.o,
utprint.o and utxferror.o.

It is also required to add acpi_os_initialize() invocations if an
application starts to use acpi_log_error().

acpidump has already invoked acpi_os_initialize() in this way.  Lv Zheng.

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

ACPICA: Application: Enhance ACPI_USAGE_xxx/ACPI_OPTION with acpi_os_printf() to improve portability

2014-07-08T12:22:26+00:00

This patch enhances ACPI_USAGE_xxx/ACPI_OPTION macros to use portable
acpi_os_printf() so that usage functions for applications no longer rely on
the printf() API.

To use acpi_os_printf() exported by osunixxf.c as a replacement of
printf(), applications need to initialize acpi_gbl_output_file to stdout
and initialize acpi_gbl_db_output_flags to ACPI_DB_CONSOLE_OUTPUT. The
latter is automatically done by ACPI_INIT_GLOBAL(), applications need to
link utglobal.o to utilize this mechanism. For GCC, assigning stdout to
acpi_gbl_output_file using ACPI_INIT_GLOBAL() is not possible as stdout is
not a constant in GCC environment. As an alternative solution, stdout
assignment has been put into acpi_os_initialize(). Thus
acpi_os_initialize() need to be invoked very early by the applications to
initialize the default output of acpi_os_printf() to keep behavior
consistency.

acpidump has already invoked acpi_os_initialize() in this way. Lv Zheng.

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

ACPICA: Utilities: Add formatted printing APIs

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

This patch introduces formatted printing APIs to handle ACPICA specific
formatted print requirements. Currently only specific OSPMs will use this
customized printing support, Linux kernel doesn't use these APIs at this
time. It will be enabled for Linux kernel resident ACPICA after being well
tested. So currently this patch is a no-op.

The specific formatted printing APIs are useful to ACPICA as:
 1. Some portable applications do not link standard C library, so they
    cannot use standard formatted print APIs directly.
 2. Platform specific printing format may differ and thus not portable, for
    example, u64 is %ull for Linux kernel and is %uI64 for some MSVC
    versions.
 3. Platform specific printing format may conflict with ACPICA's usages
    while it is not possible for ACPICA developers to test their code for
    all platforms. For example, developers may generate %pRxxx while Linux
    kernel treats %pR as structured resource printing and decodes variable
    argument as a "struct resource" pointer.
This patch solves above issues by introducing the new APIs.

Note that users of such APIs are not introduced in this patch. Users of
acpi_os_file_vprintf()/acpi_ut_file_printf() need to invoke acpi_os_initialize(),
this should be taken care by the further patches where such users are
introduced. Lv Zheng.

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