<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/arch/ppc, branch v2.6.23.17</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>[PPC] Fix cpm_dpram_addr returning phys mem instead of virt mem</title>
<updated>2007-09-28T15:25:32+00:00</updated>
<author>
<name>Jochen Friedrich</name>
<email>jochen@scram.de</email>
</author>
<published>2007-09-24T17:14:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=bc63818931ea55c54d6e59b7d38bff8f295dc8c1'/>
<id>bc63818931ea55c54d6e59b7d38bff8f295dc8c1</id>
<content type='text'>
cpm_dpram_addr returns physical memory of the DP RAM instead of
iomapped virtual memory. As there usually is a 1:1 MMU map of
the IMMR area, this is often not noticed. However, cpm_dpram_phys
assumes this iomapped virtual memory and returns garbage on the
1:1 mapped memory causing CPM1 uart console to fail.

This patch fixes the problem (copied from the powerpc tree).

Signed-off-by: Jochen Friedrich &lt;jochen@scram.de&gt;
Signed-off-by: Kumar Gala &lt;galak@kernel.crashing.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
cpm_dpram_addr returns physical memory of the DP RAM instead of
iomapped virtual memory. As there usually is a 1:1 MMU map of
the IMMR area, this is often not noticed. However, cpm_dpram_phys
assumes this iomapped virtual memory and returns garbage on the
1:1 mapped memory causing CPM1 uart console to fail.

This patch fixes the problem (copied from the powerpc tree).

Signed-off-by: Jochen Friedrich &lt;jochen@scram.de&gt;
Signed-off-by: Kumar Gala &lt;galak@kernel.crashing.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[PPC] 8xx: Fix r3 trashing due to 8MB TLB page instantiation</title>
<updated>2007-09-10T21:01:22+00:00</updated>
<author>
<name>Jochen Friedrich</name>
<email>jochen@scram.de</email>
</author>
<published>2007-08-28T11:20:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=36c50f729b77144cae8d43457fefca66a4eeff6a'/>
<id>36c50f729b77144cae8d43457fefca66a4eeff6a</id>
<content type='text'>
Instantiation of 8MB pages on the TLB cache for the kernel static
mapping trashes r3 register on !CONFIG_8xx_CPU6 configurations.
This ensures r3 gets saved and restored.

This has been posted to linuxppc-embedded by Marcelo Tosatti
&lt;marcelo@kvack.org&gt;, but only an incomplete version of the patch
has been applied in c51e078f82096a7d35ac8ec2416272e843a0e1c4.
This patch adds the rest of the fix.

Signed-off-by: Jochen Friedrich &lt;jochen@scram.de&gt;
Signed-off-by: Kumar Gala &lt;galak@kernel.crashing.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Instantiation of 8MB pages on the TLB cache for the kernel static
mapping trashes r3 register on !CONFIG_8xx_CPU6 configurations.
This ensures r3 gets saved and restored.

This has been posted to linuxppc-embedded by Marcelo Tosatti
&lt;marcelo@kvack.org&gt;, but only an incomplete version of the patch
has been applied in c51e078f82096a7d35ac8ec2416272e843a0e1c4.
This patch adds the rest of the fix.

Signed-off-by: Jochen Friedrich &lt;jochen@scram.de&gt;
Signed-off-by: Kumar Gala &lt;galak@kernel.crashing.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[POWERPC] Fix small race in 44x tlbie function</title>
<updated>2007-08-15T05:12:50+00:00</updated>
<author>
<name>David Gibson</name>
<email>david@gibson.dropbear.id.au</email>
</author>
<published>2007-08-07T04:20:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=aa1cf632bd6f998cb4567ccf1a9d2e5daaa9fb44'/>
<id>aa1cf632bd6f998cb4567ccf1a9d2e5daaa9fb44</id>
<content type='text'>
The 440 family of processors don't have a tlbie instruction.  So, we
implement TLB invalidates by explicitly searching the TLB with tlbsx.,
then clobbering the relevant entry, if any.  Unfortunately the PID for
the search needs to be stored in the MMUCR register, which is also
used by the TLB miss handler.  Interrupts were enabled in _tlbie(), so
an interrupt between loading the MMUCR and the tlbsx could cause
incorrect search results, and thus a failure to invalide TLB entries
which needed to be invalidated.

This fixes the problem in both arch/ppc and arch/powerpc by inhibiting
interrupts (even critical and debug interrupts) across the relevant
instructions.

Signed-off-by: David Gibson &lt;david@gibson.dropbear.id.au&gt;
Acked-by: Josh Boyer &lt;jwboyer@linux.vnet.ibm.com&gt;
Signed-off-by: Paul Mackerras &lt;paulus@samba.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The 440 family of processors don't have a tlbie instruction.  So, we
implement TLB invalidates by explicitly searching the TLB with tlbsx.,
then clobbering the relevant entry, if any.  Unfortunately the PID for
the search needs to be stored in the MMUCR register, which is also
used by the TLB miss handler.  Interrupts were enabled in _tlbie(), so
an interrupt between loading the MMUCR and the tlbsx could cause
incorrect search results, and thus a failure to invalide TLB entries
which needed to be invalidated.

This fixes the problem in both arch/ppc and arch/powerpc by inhibiting
interrupts (even critical and debug interrupts) across the relevant
instructions.

Signed-off-by: David Gibson &lt;david@gibson.dropbear.id.au&gt;
Acked-by: Josh Boyer &lt;jwboyer@linux.vnet.ibm.com&gt;
Signed-off-by: Paul Mackerras &lt;paulus@samba.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog</title>
<updated>2007-08-01T03:43:52+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@woody.linux-foundation.org</email>
</author>
<published>2007-08-01T03:43:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=2f63251ed0a803ddbe7bf2577b69d467aa872f68'/>
<id>2f63251ed0a803ddbe7bf2577b69d467aa872f68</id>
<content type='text'>
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: (28 commits)
  [WATCHDOG] Fix pcwd_init_module crash
  [WATCHDOG] ICH9 support for iTCO_wdt
  [WATCHDOG] 631xESB/632xESB support for iTCO_wdt - add all LPC bridges
  [WATCHDOG] 631xESB/632xESB support for iTCO_wdt
  [WATCHDOG] omap_wdt.c - default error for IOCTL is -ENOTTY
  [WATCHDOG] Return value of nonseekable_open
  [WATCHDOG] mv64x60_wdt: Rework the timeout register manipulation
  [WATCHDOG] mv64x60_wdt: disable watchdog timer when driver is probed
  [WATCHDOG] mv64x60_wdt: Support the WDIOF_MAGICCLOSE feature
  [WATCHDOG] mv64x60_wdt: Add a module parameter to change nowayout setting
  [WATCHDOG] mv64x60_wdt: Add WDIOC_SETOPTIONS ioctl support
  [WATCHDOG] mv64x60_wdt: Support for WDIOC_SETTIMEOUT ioctl
  [WATCHDOG] mv64x60_wdt: Fix WDIOC_GETTIMEOUT return value
  [WATCHDOG] mv64x60_wdt: Check return value of nonseekable_open
  [WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support
  [WATCHDOG] mv64x60_wdt: Get register address from platform data
  [WATCHDOG] mv64x60_wdt: set up platform_device in platform code
  [WATCHDOG] ensure mouse and keyboard ignored in w83627hf_wdt
  [WATCHDOG] s3c2410_wdt: fixup after arch include moves
  [WATCHDOG] git-watchdog-typo
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: (28 commits)
  [WATCHDOG] Fix pcwd_init_module crash
  [WATCHDOG] ICH9 support for iTCO_wdt
  [WATCHDOG] 631xESB/632xESB support for iTCO_wdt - add all LPC bridges
  [WATCHDOG] 631xESB/632xESB support for iTCO_wdt
  [WATCHDOG] omap_wdt.c - default error for IOCTL is -ENOTTY
  [WATCHDOG] Return value of nonseekable_open
  [WATCHDOG] mv64x60_wdt: Rework the timeout register manipulation
  [WATCHDOG] mv64x60_wdt: disable watchdog timer when driver is probed
  [WATCHDOG] mv64x60_wdt: Support the WDIOF_MAGICCLOSE feature
  [WATCHDOG] mv64x60_wdt: Add a module parameter to change nowayout setting
  [WATCHDOG] mv64x60_wdt: Add WDIOC_SETOPTIONS ioctl support
  [WATCHDOG] mv64x60_wdt: Support for WDIOC_SETTIMEOUT ioctl
  [WATCHDOG] mv64x60_wdt: Fix WDIOC_GETTIMEOUT return value
  [WATCHDOG] mv64x60_wdt: Check return value of nonseekable_open
  [WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support
  [WATCHDOG] mv64x60_wdt: Get register address from platform data
  [WATCHDOG] mv64x60_wdt: set up platform_device in platform code
  [WATCHDOG] ensure mouse and keyboard ignored in w83627hf_wdt
  [WATCHDOG] s3c2410_wdt: fixup after arch include moves
  [WATCHDOG] git-watchdog-typo
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION</title>
<updated>2007-07-29T23:45:38+00:00</updated>
<author>
<name>Rafael J. Wysocki</name>
<email>rjw@sisk.pl</email>
</author>
<published>2007-07-29T21:24:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b0cb1a19d05b8ea8611a9ef48a17fe417f1832e6'/>
<id>b0cb1a19d05b8ea8611a9ef48a17fe417f1832e6</id>
<content type='text'>
Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION to avoid
confusion (among other things, with CONFIG_SUSPEND introduced in the
next patch).

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>
Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION to avoid
confusion (among other things, with CONFIG_SUSPEND introduced in the
next patch).

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>[WATCHDOG] mv64x60_wdt: set up platform_device in platform code</title>
<updated>2007-07-24T18:56:35+00:00</updated>
<author>
<name>Dale Farnsworth</name>
<email>dale@farnsworth.org</email>
</author>
<published>2007-07-24T18:07:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=422db8d229affd429b5a7389600877aa7dea2704'/>
<id>422db8d229affd429b5a7389600877aa7dea2704</id>
<content type='text'>
The driver previously registered its platform device data in its own
init function--that's bogus.  Move that code to platform-specific
code in arch/ppc.  This is being done so that the platform code can
decide at runtime whether to initialize this driver or not.

Signed-off-by: Dale Farnsworth &lt;dale@farnsworth.org&gt;
Signed-off-by: Wim Van Sebroeck &lt;wim@iguana.be&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The driver previously registered its platform device data in its own
init function--that's bogus.  Move that code to platform-specific
code in arch/ppc.  This is being done so that the platform code can
decide at runtime whether to initialize this driver or not.

Signed-off-by: Dale Farnsworth &lt;dale@farnsworth.org&gt;
Signed-off-by: Wim Van Sebroeck &lt;wim@iguana.be&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>[POWERPC] mv64x60: Use mutex instead of semaphore</title>
<updated>2007-07-22T11:30:58+00:00</updated>
<author>
<name>Christoph Hellwig</name>
<email>hch@lst.de</email>
</author>
<published>2007-07-19T21:50:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=461e666723b6669bc6f7ef90b49b615396d70eb8'/>
<id>461e666723b6669bc6f7ef90b49b615396d70eb8</id>
<content type='text'>
Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Acked-by: Mark A. Greer &lt;mgreer@mvista.com&gt;
Signed-off-by: Paul Mackerras &lt;paulus@samba.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Acked-by: Mark A. Greer &lt;mgreer@mvista.com&gt;
Signed-off-by: Paul Mackerras &lt;paulus@samba.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6</title>
<updated>2007-07-19T21:24:57+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@woody.linux-foundation.org</email>
</author>
<published>2007-07-19T21:24:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=40b42f1ebf653cd72c32eb1a1a0b9fea2dfbfd7d'/>
<id>40b42f1ebf653cd72c32eb1a1a0b9fea2dfbfd7d</id>
<content type='text'>
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: (44 commits)
  i2c: Delete the i2c-isa pseudo bus driver
  hwmon: refuse to load abituguru driver on non-Abit boards
  hwmon: fix Abit Uguru3 driver detection on some motherboards
  hwmon/w83627ehf: Be quiet when no chip is found
  hwmon/w83627ehf: No need to initialize fan_min
  hwmon/w83627ehf: Export the thermal sensor types
  hwmon/w83627ehf: Enable VBAT monitoring
  hwmon/w83627ehf: Add support for the VID inputs
  hwmon/w83627ehf: Fix timing issues
  hwmon/w83627ehf: Add error messages for two error cases
  hwmon/w83627ehf: Convert to a platform driver
  hwmon/w83627ehf: Update the Kconfig entry
  make coretemp_device_remove() static
  hwmon: Add LM93 support
  hwmon: Improve the pwmN_enable documentation
  hwmon/smsc47b397: Don't report missing fans as spinning at 82 RPM
  hwmon: Add support for newer uGuru's
  hwmon/f71805f: Add temperature-tracking fan control mode
  hwmon/w83627ehf: Preserve speed reading when changing fan min
  hwmon: fix detection of abituguru volt inputs
  ...

Manual fixup of trivial conflict in MAINTAINERS file
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: (44 commits)
  i2c: Delete the i2c-isa pseudo bus driver
  hwmon: refuse to load abituguru driver on non-Abit boards
  hwmon: fix Abit Uguru3 driver detection on some motherboards
  hwmon/w83627ehf: Be quiet when no chip is found
  hwmon/w83627ehf: No need to initialize fan_min
  hwmon/w83627ehf: Export the thermal sensor types
  hwmon/w83627ehf: Enable VBAT monitoring
  hwmon/w83627ehf: Add support for the VID inputs
  hwmon/w83627ehf: Fix timing issues
  hwmon/w83627ehf: Add error messages for two error cases
  hwmon/w83627ehf: Convert to a platform driver
  hwmon/w83627ehf: Update the Kconfig entry
  make coretemp_device_remove() static
  hwmon: Add LM93 support
  hwmon: Improve the pwmN_enable documentation
  hwmon/smsc47b397: Don't report missing fans as spinning at 82 RPM
  hwmon: Add support for newer uGuru's
  hwmon/f71805f: Add temperature-tracking fan control mode
  hwmon/w83627ehf: Preserve speed reading when changing fan min
  hwmon: fix detection of abituguru volt inputs
  ...

Manual fixup of trivial conflict in MAINTAINERS file
</pre>
</div>
</content>
</entry>
<entry>
<title>i2c: Delete the i2c-isa pseudo bus driver</title>
<updated>2007-07-19T18:25:20+00:00</updated>
<author>
<name>Jean Delvare</name>
<email>khali@linux-fr.org</email>
</author>
<published>2007-07-08T12:26:37+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=e24b8cb4fa2bb779bdf48656152366b6f52f748f'/>
<id>e24b8cb4fa2bb779bdf48656152366b6f52f748f</id>
<content type='text'>
There are no users of i2c-isa left, so we can finally get rid of it.

Signed-off-by: Jean Delvare &lt;khali@linux-fr.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
There are no users of i2c-isa left, so we can finally get rid of it.

Signed-off-by: Jean Delvare &lt;khali@linux-fr.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>define new percpu interface for shared data</title>
<updated>2007-07-19T17:04:44+00:00</updated>
<author>
<name>Fenghua Yu</name>
<email>fenghua.yu@intel.com</email>
</author>
<published>2007-07-19T08:48:12+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=5fb7dc37dc16fbc8b80d81318a582201ef7e280d'/>
<id>5fb7dc37dc16fbc8b80d81318a582201ef7e280d</id>
<content type='text'>
per cpu data section contains two types of data.  One set which is
exclusively accessed by the local cpu and the other set which is per cpu,
but also shared by remote cpus.  In the current kernel, these two sets are
not clearely separated out.  This can potentially cause the same data
cacheline shared between the two sets of data, which will result in
unnecessary bouncing of the cacheline between cpus.

One way to fix the problem is to cacheline align the remotely accessed per
cpu data, both at the beginning and at the end.  Because of the padding at
both ends, this will likely cause some memory wastage and also the
interface to achieve this is not clean.

This patch:

Moves the remotely accessed per cpu data (which is currently marked
as ____cacheline_aligned_in_smp) into a different section, where all the data
elements are cacheline aligned. And as such, this differentiates the local
only data and remotely accessed data cleanly.

Signed-off-by: Fenghua Yu &lt;fenghua.yu@intel.com&gt;
Acked-by: Suresh Siddha &lt;suresh.b.siddha@intel.com&gt;
Cc: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
Cc: Christoph Lameter &lt;clameter@sgi.com&gt;
Cc: &lt;linux-arch@vger.kernel.org&gt;
Cc: "Luck, Tony" &lt;tony.luck@intel.com&gt;
Cc: Andi Kleen &lt;ak@suse.de&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&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>
per cpu data section contains two types of data.  One set which is
exclusively accessed by the local cpu and the other set which is per cpu,
but also shared by remote cpus.  In the current kernel, these two sets are
not clearely separated out.  This can potentially cause the same data
cacheline shared between the two sets of data, which will result in
unnecessary bouncing of the cacheline between cpus.

One way to fix the problem is to cacheline align the remotely accessed per
cpu data, both at the beginning and at the end.  Because of the padding at
both ends, this will likely cause some memory wastage and also the
interface to achieve this is not clean.

This patch:

Moves the remotely accessed per cpu data (which is currently marked
as ____cacheline_aligned_in_smp) into a different section, where all the data
elements are cacheline aligned. And as such, this differentiates the local
only data and remotely accessed data cleanly.

Signed-off-by: Fenghua Yu &lt;fenghua.yu@intel.com&gt;
Acked-by: Suresh Siddha &lt;suresh.b.siddha@intel.com&gt;
Cc: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
Cc: Christoph Lameter &lt;clameter@sgi.com&gt;
Cc: &lt;linux-arch@vger.kernel.org&gt;
Cc: "Luck, Tony" &lt;tony.luck@intel.com&gt;
Cc: Andi Kleen &lt;ak@suse.de&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
