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<title>linux-toradex.git/include/linux/acpi.h, branch T20_LinuxImageV2.0Beta1_20121218</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>Merge branch 'apei-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6</title>
<updated>2011-08-04T07:53:27+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2011-08-04T07:53:27+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c0c770e610cc4cdcd66c7e939bdf89cc3e72f79d'/>
<id>c0c770e610cc4cdcd66c7e939bdf89cc3e72f79d</id>
<content type='text'>
* 'apei-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI, APEI, EINJ Param support is disabled by default
  APEI GHES: 32-bit buildfix
  ACPI: APEI build fix
  ACPI, APEI, GHES: Add hardware memory error recovery support
  HWPoison: add memory_failure_queue()
  ACPI, APEI, GHES, Error records content based throttle
  ACPI, APEI, GHES, printk support for recoverable error via NMI
  lib, Make gen_pool memory allocator lockless
  lib, Add lock-less NULL terminated single list
  Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHG
  ACPI, APEI, Add WHEA _OSC support
  ACPI, APEI, Add APEI bit support in generic _OSC call
  ACPI, APEI, GHES, Support disable GHES at boot time
  ACPI, APEI, GHES, Prevent GHES to be built as module
  ACPI, APEI, Use apei_exec_run_optional in APEI EINJ and ERST
  ACPI, APEI, Add apei_exec_run_optional
  ACPI, APEI, GHES, Do not ratelimit fatal error printk before panic
  ACPI, APEI, ERST, Fix erst-dbg long record reading issue
  ACPI, APEI, ERST, Prevent erst_dbg from loading if ERST is disabled
</content>
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<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'apei-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI, APEI, EINJ Param support is disabled by default
  APEI GHES: 32-bit buildfix
  ACPI: APEI build fix
  ACPI, APEI, GHES: Add hardware memory error recovery support
  HWPoison: add memory_failure_queue()
  ACPI, APEI, GHES, Error records content based throttle
  ACPI, APEI, GHES, printk support for recoverable error via NMI
  lib, Make gen_pool memory allocator lockless
  lib, Add lock-less NULL terminated single list
  Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHG
  ACPI, APEI, Add WHEA _OSC support
  ACPI, APEI, Add APEI bit support in generic _OSC call
  ACPI, APEI, GHES, Support disable GHES at boot time
  ACPI, APEI, GHES, Prevent GHES to be built as module
  ACPI, APEI, Use apei_exec_run_optional in APEI EINJ and ERST
  ACPI, APEI, Add apei_exec_run_optional
  ACPI, APEI, GHES, Do not ratelimit fatal error printk before panic
  ACPI, APEI, ERST, Fix erst-dbg long record reading issue
  ACPI, APEI, ERST, Prevent erst_dbg from loading if ERST is disabled
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: remove NID_INVAL</title>
<updated>2011-08-02T18:52:13+00:00</updated>
<author>
<name>David Rientjes</name>
<email>rientjes@google.com</email>
</author>
<published>2011-07-28T20:48:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f52e00c668669c9c290e84adf859c76db6d92a5a'/>
<id>f52e00c668669c9c290e84adf859c76db6d92a5a</id>
<content type='text'>
b552a8c56db8 ("ACPI: remove NID_INVAL") removed the left over uses of
NID_INVAL, but didn't actually remove the definition.  Remove it.

Signed-off-by: David Rientjes &lt;rientjes@google.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
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<pre>
b552a8c56db8 ("ACPI: remove NID_INVAL") removed the left over uses of
NID_INVAL, but didn't actually remove the definition.  Remove it.

Signed-off-by: David Rientjes &lt;rientjes@google.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI, APEI, Add APEI bit support in generic _OSC call</title>
<updated>2011-07-14T03:38:20+00:00</updated>
<author>
<name>Huang Ying</name>
<email>ying.huang@intel.com</email>
</author>
<published>2011-07-13T05:14:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=eccddd32ced0df8f9130024157bf8d37df860d76'/>
<id>eccddd32ced0df8f9130024157bf8d37df860d76</id>
<content type='text'>
In APEI firmware first mode, hardware error is reported by hardware to
firmware firstly, then firmware reports the error to Linux in a GHES
error record via POLL/SCI/IRQ/NMI etc.

This may result in some issues if OS has no full APEI support.  So
some firmware implementation will work in a back-compatible mode by
default.  Where firmware will only notify OS in old-fashion, without
GHES record.  For example, for a fatal hardware error, only NMI is
signaled, no GHES record.

To gain full APEI power on these machines, APEI bit in generic _OSC
call can be specified to tell firmware that Linux has full APEI
support.  This patch adds the APEI bit support in generic _OSC call.

Signed-off-by: Huang Ying &lt;ying.huang@intel.com&gt;
Reviewed-by: Andi Kleen &lt;ak@linux.intel.com&gt;
Reviewed-by: Matthew Garrett &lt;mjg@redhat.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
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<pre>
In APEI firmware first mode, hardware error is reported by hardware to
firmware firstly, then firmware reports the error to Linux in a GHES
error record via POLL/SCI/IRQ/NMI etc.

This may result in some issues if OS has no full APEI support.  So
some firmware implementation will work in a back-compatible mode by
default.  Where firmware will only notify OS in old-fashion, without
GHES record.  For example, for a fatal hardware error, only NMI is
signaled, no GHES record.

To gain full APEI power on these machines, APEI bit in generic _OSC
call can be specified to tell firmware that Linux has full APEI
support.  This patch adds the APEI bit support in generic _OSC call.

Signed-off-by: Huang Ying &lt;ying.huang@intel.com&gt;
Reviewed-by: Andi Kleen &lt;ak@linux.intel.com&gt;
Reviewed-by: Matthew Garrett &lt;mjg@redhat.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI EC: remove dead code</title>
<updated>2011-04-01T06:24:31+00:00</updated>
<author>
<name>Thomas Renninger</name>
<email>trenn@suse.de</email>
</author>
<published>2011-03-31T11:36:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=1cb7b1e0de6a1f8f071f4a146e3d10f3a662f707'/>
<id>1cb7b1e0de6a1f8f071f4a146e3d10f3a662f707</id>
<content type='text'>
static void acpi_ec_gpe_query(void *ec_cxt);
-&gt; The function is right above this declaration -&gt; not needed.

poll_force is also not used, cleaned up in ec.c and its users:
compal-laptop and msi-laptop.

Signed-off-by: Thomas Renninger &lt;trenn@suse.de&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
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<pre>
static void acpi_ec_gpe_query(void *ec_cxt);
-&gt; The function is right above this declaration -&gt; not needed.

poll_force is also not used, cleaned up in ec.c and its users:
compal-laptop and msi-laptop.

Signed-off-by: Thomas Renninger &lt;trenn@suse.de&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: Introduce acpi_os_ioremap()</title>
<updated>2011-01-21T02:30:17+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rjw@sisk.pl</email>
</author>
<published>2011-01-19T21:27:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=2d6d9fd3a54a28c6f67f26eb6c74803307a1b11e'/>
<id>2d6d9fd3a54a28c6f67f26eb6c74803307a1b11e</id>
<content type='text'>
Commit ca9b600be38c ("ACPI / PM: Make suspend_nvs_save() use
acpi_os_map_memory()") attempted to prevent the code in osl.c and nvs.c
from using different ioremap() variants by making the latter use
acpi_os_map_memory() for mapping the NVS pages.  However, that also
requires acpi_os_unmap_memory() to be used for unmapping them, which
causes synchronize_rcu() to be executed many times in a row
unnecessarily and introduces substantial delays during resume on some
systems.

Instead of using acpi_os_map_memory() for mapping the NVS pages in nvs.c
introduce acpi_os_ioremap() calling ioremap_cache() and make the code in
both osl.c and nvs.c use it.

Reported-by: Jeff Chua &lt;jeff.chua.linux@gmail.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Commit ca9b600be38c ("ACPI / PM: Make suspend_nvs_save() use
acpi_os_map_memory()") attempted to prevent the code in osl.c and nvs.c
from using different ioremap() variants by making the latter use
acpi_os_map_memory() for mapping the NVS pages.  However, that also
requires acpi_os_unmap_memory() to be used for unmapping them, which
causes synchronize_rcu() to be executed many times in a row
unnecessarily and introduces substantial delays during resume on some
systems.

Instead of using acpi_os_map_memory() for mapping the NVS pages in nvs.c
introduce acpi_os_ioremap() calling ioremap_cache() and make the code in
both osl.c and nvs.c use it.

Reported-by: Jeff Chua &lt;jeff.chua.linux@gmail.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI / PM: Fix build problems for !CONFIG_ACPI related to NVS rework</title>
<updated>2011-01-12T21:11:30+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rjw@sisk.pl</email>
</author>
<published>2011-01-12T21:03:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6fed05c9c9812b5882bc708f4da4fa8d5df2875c'/>
<id>6fed05c9c9812b5882bc708f4da4fa8d5df2875c</id>
<content type='text'>
The recent rework of the NVS saving/restoring code introduced two
build issues for !CONFIG_ACPI, a warning in drivers/acpi/internal.h
and an error in arch/x86/kernel/e820.c.

Fix them by providing suitable static inline definitions of the
relevant functions.

Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
Acked-by: Randy Dunlap &lt;randy.dunlap@oracle.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The recent rework of the NVS saving/restoring code introduced two
build issues for !CONFIG_ACPI, a warning in drivers/acpi/internal.h
and an error in arch/x86/kernel/e820.c.

Fix them by providing suitable static inline definitions of the
relevant functions.

Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
Acked-by: Randy Dunlap &lt;randy.dunlap@oracle.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>PM / ACPI: Move NVS saving and restoring code to drivers/acpi</title>
<updated>2011-01-07T05:36:55+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rjw@sisk.pl</email>
</author>
<published>2011-01-07T00:43:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=976513dbfc1547c7b1822566923058655f0c32fd'/>
<id>976513dbfc1547c7b1822566923058655f0c32fd</id>
<content type='text'>
The saving of the ACPI NVS area during hibernation and suspend and
restoring it during the subsequent resume is entirely specific to
ACPI, so move it to drivers/acpi and drop the CONFIG_SUSPEND_NVS
configuration option which is redundant.

Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The saving of the ACPI NVS area during hibernation and suspend and
restoring it during the subsequent resume is entirely specific to
ACPI, so move it to drivers/acpi and drop the CONFIG_SUSPEND_NVS
configuration option which is redundant.

Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>acpi: fix _OSI string setup regression</title>
<updated>2010-12-11T06:28:58+00:00</updated>
<author>
<name>Lin Ming</name>
<email>ming.m.lin@intel.com</email>
</author>
<published>2010-12-09T08:50:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=d90aa92c0c1625d7f02050e4d2924805840cda3d'/>
<id>d90aa92c0c1625d7f02050e4d2924805840cda3d</id>
<content type='text'>
commit b0ed7a91(ACPICA/ACPI: Add new host interfaces for _OSI suppor)
introduced a regression that _OSI string setup fails.

There are 2 paths to setup _OSI string.

DMI:
acpi_dmi_osi_linux -&gt; set_osi_linux -&gt; acpi_osi_setup -&gt; copy _OSI
string to osi_setup_string

Boot command line:
acpi_osi_setup -&gt; copy _OSI string to osi_setup_string

Later, acpi_osi_setup_late will be called to handle osi_setup_string.
If _OSI string is "Linux" or "!Linux", then the call path is,

acpi_osi_setup_late -&gt; acpi_cmdline_osi_linux -&gt; set_osi_linux -&gt;
acpi_osi_setup -&gt; copy _OSI string to osi_setup_string

This actually never installs _OSI string(acpi_install_interface not
called), but just copy the _OSI string to osi_setup_string.

This patch fixes the regression.

Reported-and-tested-by: Lukas Hejtmanek &lt;xhejtman@ics.muni.cz&gt;
Signed-off-by: Lin Ming &lt;ming.m.lin@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit b0ed7a91(ACPICA/ACPI: Add new host interfaces for _OSI suppor)
introduced a regression that _OSI string setup fails.

There are 2 paths to setup _OSI string.

DMI:
acpi_dmi_osi_linux -&gt; set_osi_linux -&gt; acpi_osi_setup -&gt; copy _OSI
string to osi_setup_string

Boot command line:
acpi_osi_setup -&gt; copy _OSI string to osi_setup_string

Later, acpi_osi_setup_late will be called to handle osi_setup_string.
If _OSI string is "Linux" or "!Linux", then the call path is,

acpi_osi_setup_late -&gt; acpi_cmdline_osi_linux -&gt; set_osi_linux -&gt;
acpi_osi_setup -&gt; copy _OSI string to osi_setup_string

This actually never installs _OSI string(acpi_install_interface not
called), but just copy the _OSI string to osi_setup_string.

This patch fixes the regression.

Reported-and-tested-by: Lukas Hejtmanek &lt;xhejtman@ics.muni.cz&gt;
Signed-off-by: Lin Ming &lt;ming.m.lin@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'misc' into release</title>
<updated>2010-10-26T18:51:00+00:00</updated>
<author>
<name>Len Brown</name>
<email>len.brown@intel.com</email>
</author>
<published>2010-10-26T18:51:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=7e31842441776b4d6ec7fd916c91663ad05b7814'/>
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<pre>
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: Add interfaces for ioremapping/iounmapping ACPI registers</title>
<updated>2010-10-25T03:26:23+00:00</updated>
<author>
<name>Myron Stowe</name>
<email>myron.stowe@hp.com</email>
</author>
<published>2010-10-21T20:23:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=29718521237a1b1607ea05b49243100ea2044337'/>
<id>29718521237a1b1607ea05b49243100ea2044337</id>
<content type='text'>
Add remapping and unmapping interfaces for ACPI registers that are
backed by memory mapped I/O (MMIO).  These interfaces, along with
the MMIO remapping list, enable accesses of such registers from within
interrupt context.

ACPI Generic Address Structure (GAS) reference (ACPI's fixed/generic
hardware registers use the GAS format):
  ACPI Specification, Revision 4.0, Section 5.2.3.1, "Generic Address
  Structure".

Signed-off-by: Myron Stowe &lt;myron.stowe@hp.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add remapping and unmapping interfaces for ACPI registers that are
backed by memory mapped I/O (MMIO).  These interfaces, along with
the MMIO remapping list, enable accesses of such registers from within
interrupt context.

ACPI Generic Address Structure (GAS) reference (ACPI's fixed/generic
hardware registers use the GAS format):
  ACPI Specification, Revision 4.0, Section 5.2.3.1, "Generic Address
  Structure".

Signed-off-by: Myron Stowe &lt;myron.stowe@hp.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
