<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/arch/powerpc/boot, branch v3.18-rc2</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux</title>
<updated>2014-10-12T00:34:00+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2014-10-12T00:34:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=fd9879b9bb3258ebc27a4cc6d2d29f528f71901f'/>
<id>fd9879b9bb3258ebc27a4cc6d2d29f528f71901f</id>
<content type='text'>
Pull powerpc updates from Michael Ellerman:
 "Here's a first pull request for powerpc updates for 3.18.

  The bulk of the additions are for the "cxl" driver, for IBM's Coherent
  Accelerator Processor Interface (CAPI).  Most of it's in drivers/misc,
  which Greg &amp; Arnd maintain, Greg said he was happy for us to take it
  through our tree.

  There's the usual minor cleanups and fixes, including a bit of noise
  in drivers from some of those.  A bunch of updates to our EEH code,
  which has been getting more testing.  Several nice speedups from
  Anton, including 20% in clear_page().

  And a bunch of updates for freescale from Scott"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (130 commits)
  cxl: Fix afu_read() not doing finish_wait() on signal or non-blocking
  cxl: Add documentation for userspace APIs
  cxl: Add driver to Kbuild and Makefiles
  cxl: Add userspace header file
  cxl: Driver code for powernv PCIe based cards for userspace access
  cxl: Add base builtin support
  powerpc/mm: Add hooks for cxl
  powerpc/opal: Add PHB to cxl mode call
  powerpc/mm: Add new hash_page_mm()
  powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts
  cxl: Add new header for call backs and structs
  powerpc/powernv: Split out set MSI IRQ chip code
  powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize
  powerpc/msi: Improve IRQ bitmap allocator
  powerpc/cell: Make spu_flush_all_slbs() generic
  powerpc/cell: Move data segment faulting code out of cell platform
  powerpc/cell: Move spu_handle_mm_fault() out of cell platform
  powerpc/pseries: Use new defines when calling H_SET_MODE
  powerpc: Update contact info in Documentation files
  powerpc/perf/hv-24x7: Simplify catalog_read()
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull powerpc updates from Michael Ellerman:
 "Here's a first pull request for powerpc updates for 3.18.

  The bulk of the additions are for the "cxl" driver, for IBM's Coherent
  Accelerator Processor Interface (CAPI).  Most of it's in drivers/misc,
  which Greg &amp; Arnd maintain, Greg said he was happy for us to take it
  through our tree.

  There's the usual minor cleanups and fixes, including a bit of noise
  in drivers from some of those.  A bunch of updates to our EEH code,
  which has been getting more testing.  Several nice speedups from
  Anton, including 20% in clear_page().

  And a bunch of updates for freescale from Scott"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (130 commits)
  cxl: Fix afu_read() not doing finish_wait() on signal or non-blocking
  cxl: Add documentation for userspace APIs
  cxl: Add driver to Kbuild and Makefiles
  cxl: Add userspace header file
  cxl: Driver code for powernv PCIe based cards for userspace access
  cxl: Add base builtin support
  powerpc/mm: Add hooks for cxl
  powerpc/opal: Add PHB to cxl mode call
  powerpc/mm: Add new hash_page_mm()
  powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts
  cxl: Add new header for call backs and structs
  powerpc/powernv: Split out set MSI IRQ chip code
  powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize
  powerpc/msi: Improve IRQ bitmap allocator
  powerpc/cell: Make spu_flush_all_slbs() generic
  powerpc/cell: Move data segment faulting code out of cell platform
  powerpc/cell: Move spu_handle_mm_fault() out of cell platform
  powerpc/pseries: Use new defines when calling H_SET_MODE
  powerpc: Update contact info in Documentation files
  powerpc/perf/hv-24x7: Simplify catalog_read()
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial</title>
<updated>2014-10-08T01:16:26+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2014-10-08T01:16:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=28596c9722289b2f98fa83a2e4351eb0a031b953'/>
<id>28596c9722289b2f98fa83a2e4351eb0a031b953</id>
<content type='text'>
Pull "trivial tree" updates from Jiri Kosina:
 "Usual pile from trivial tree everyone is so eagerly waiting for"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  Remove MN10300_PROC_MN2WS0038
  mei: fix comments
  treewide: Fix typos in Kconfig
  kprobes: update jprobe_example.c for do_fork() change
  Documentation: change "&amp;" to "and" in Documentation/applying-patches.txt
  Documentation: remove obsolete pcmcia-cs from Changes
  Documentation: update links in Changes
  Documentation: Docbook: Fix generated DocBook/kernel-api.xml
  score: Remove GENERIC_HAS_IOMAP
  gpio: fix 'CONFIG_GPIO_IRQCHIP' comments
  tty: doc: Fix grammar in serial/tty
  dma-debug: modify check_for_stack output
  treewide: fix errors in printk
  genirq: fix reference in devm_request_threaded_irq comment
  treewide: fix synchronize_rcu() in comments
  checkstack.pl: port to AArch64
  doc: queue-sysfs: minor fixes
  init/do_mounts: better syntax description
  MIPS: fix comment spelling
  powerpc/simpleboot: fix comment
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull "trivial tree" updates from Jiri Kosina:
 "Usual pile from trivial tree everyone is so eagerly waiting for"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  Remove MN10300_PROC_MN2WS0038
  mei: fix comments
  treewide: Fix typos in Kconfig
  kprobes: update jprobe_example.c for do_fork() change
  Documentation: change "&amp;" to "and" in Documentation/applying-patches.txt
  Documentation: remove obsolete pcmcia-cs from Changes
  Documentation: update links in Changes
  Documentation: Docbook: Fix generated DocBook/kernel-api.xml
  score: Remove GENERIC_HAS_IOMAP
  gpio: fix 'CONFIG_GPIO_IRQCHIP' comments
  tty: doc: Fix grammar in serial/tty
  dma-debug: modify check_for_stack output
  treewide: fix errors in printk
  genirq: fix reference in devm_request_threaded_irq comment
  treewide: fix synchronize_rcu() in comments
  checkstack.pl: port to AArch64
  doc: queue-sysfs: minor fixes
  init/do_mounts: better syntax description
  MIPS: fix comment spelling
  powerpc/simpleboot: fix comment
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git</title>
<updated>2014-10-03T22:59:06+00:00</updated>
<author>
<name>Michael Ellerman</name>
<email>mpe@ellerman.id.au</email>
</author>
<published>2014-10-03T22:59:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=75d43b2d0a323ba894d85060888f039e41b441ca'/>
<id>75d43b2d0a323ba894d85060888f039e41b441ca</id>
<content type='text'>
Freescale updates from Scott (27 commits):

  "Highlights include DMA32 zone support (SATA, USB, etc now works on 64-bit
   FSL kernels), MSI changes, 8xx optimizations and cleanup, t104x board
   support, and PrPMC PCI enumeration."
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Freescale updates from Scott (27 commits):

  "Highlights include DMA32 zone support (SATA, USB, etc now works on 64-bit
   FSL kernels), MSI changes, 8xx optimizations and cleanup, t104x board
   support, and PrPMC PCI enumeration."
</pre>
</div>
</content>
</entry>
<entry>
<title>powerpc/boot: Don't install zImage.* from make install</title>
<updated>2014-09-25T13:14:34+00:00</updated>
<author>
<name>Tony Breeds</name>
<email>tony@bakeyournoodle.com</email>
</author>
<published>2014-08-14T07:05:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c913e5f95e546d8d3a9f99ba9908f7e095cbc1fb'/>
<id>c913e5f95e546d8d3a9f99ba9908f7e095cbc1fb</id>
<content type='text'>
in commit 29f1aff2c (powerpc: Copy bootable images in the default
install script) we changed to copying all the built boot targets based
on the assumption that it's backwards compatible.  It turns out that
debian devived installkernel scripts will barf if not given exactly 4
args.

This change reverts make install to just install the vmlinux (we can
change the dfault in a seperate patch) and introduces a new make
zInstall which works with a more flexible installkernel script.

Cc: Grant Likely &lt;grant.likely@secretlab.ca&gt;
Signed-off-by: Tony Breeds &lt;tony@bakeyournoodle.com&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
in commit 29f1aff2c (powerpc: Copy bootable images in the default
install script) we changed to copying all the built boot targets based
on the assumption that it's backwards compatible.  It turns out that
debian devived installkernel scripts will barf if not given exactly 4
args.

This change reverts make install to just install the vmlinux (we can
change the dfault in a seperate patch) and introduces a new make
zInstall which works with a more flexible installkernel script.

Cc: Grant Likely &lt;grant.likely@secretlab.ca&gt;
Signed-off-by: Tony Breeds &lt;tony@bakeyournoodle.com&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>powerpc: dts: t208x: Change T208x USB controller version</title>
<updated>2014-09-16T22:39:09+00:00</updated>
<author>
<name>Nikhil Badola</name>
<email>nikhil.badola@freescale.com</email>
</author>
<published>2014-08-21T10:31:30+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c22b47f03cdf01c7c4859b818b2a413251dde28d'/>
<id>c22b47f03cdf01c7c4859b818b2a413251dde28d</id>
<content type='text'>
Change USB controller version to 2.5 in compatible string for T2080/T2081

Signed-off-by: Nikhil Badola &lt;nikhil.badola@freescale.com&gt;
Signed-off-by: Scott Wood &lt;scottwood@freescale.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change USB controller version to 2.5 in compatible string for T2080/T2081

Signed-off-by: Nikhil Badola &lt;nikhil.badola@freescale.com&gt;
Signed-off-by: Scott Wood &lt;scottwood@freescale.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>powerpc/fsl-booke: Add initial T1042RDB_PI board support</title>
<updated>2014-09-09T23:28:24+00:00</updated>
<author>
<name>Priyanka Jain</name>
<email>Priyanka.Jain@freescale.com</email>
</author>
<published>2014-09-05T10:45:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=667680f6841bb5cc239382fea916bf4ab6803842'/>
<id>667680f6841bb5cc239382fea916bf4ab6803842</id>
<content type='text'>
T1042RDB_PI is Freescale Reference Design Board supporting the T1042
QorIQ Power Architecture™ processor. T1042 is a reduced personality
of T1040 SoC without Integrated 8-port Gigabit. The board is designed
with low power features targeted for Printing Image Market.

T1042RDB_PI is  similar to T1040RDB board with few differences like
it has video interface, supports T1042 personality only

T1042RDB_PI board Overview
-----------------------
- SERDES Connections, 8 lanes supporting:
    	- PCI
    	- SATA 2.0
- DDR Controller
    	- Supports rates of up to 1600 MHz data-rate
    	- Supports one DDR3LP UDIMM
-IFC/Local Bus
    	- NAND flash: 1GB 8-bit NAND flash
    	- NOR: 128MB 16-bit NOR Flash
- Ethernet
    	- Two on-board RGMII 10/100/1G ethernet ports.
    	- PHY #0 remains powered up during deep-sleep
- CPLD
- Clocks
    	- System and DDR clock (SYSCLK, “DDRCLK”)
    	- SERDES clocks
- Power Supplies
- USB
    	- Supports two USB 2.0 ports with integrated PHYs
    	- Two type A ports with 5V@1.5A per port.
- SDHC
    	- SDHC/SDXC connector
- SPI
    	- On-board 64MB SPI flash
- I2C
    	- Device connected: EEPROM, thermal monitor, VID controller, RTC
- Other IO
    	- Two Serial ports
    	- ProfiBus port

Add support for T1042RDB_PI board:
    -add device tree
    -Add entry in corenet_generic.c, as it is similar to other corenet platforms

Signed-off-by: Poonam Aggrwal &lt;poonam.aggrwal@freescale.com&gt;
Signed-off-by: Prabhakar Kushwaha &lt;prabhakar@freescale.com&gt;
Signed-off-by: Priyanka Jain &lt;Priyanka.Jain@freescale.com&gt;
Signed-off-by: Scott Wood &lt;scottwood@freescale.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
T1042RDB_PI is Freescale Reference Design Board supporting the T1042
QorIQ Power Architecture™ processor. T1042 is a reduced personality
of T1040 SoC without Integrated 8-port Gigabit. The board is designed
with low power features targeted for Printing Image Market.

T1042RDB_PI is  similar to T1040RDB board with few differences like
it has video interface, supports T1042 personality only

T1042RDB_PI board Overview
-----------------------
- SERDES Connections, 8 lanes supporting:
    	- PCI
    	- SATA 2.0
- DDR Controller
    	- Supports rates of up to 1600 MHz data-rate
    	- Supports one DDR3LP UDIMM
-IFC/Local Bus
    	- NAND flash: 1GB 8-bit NAND flash
    	- NOR: 128MB 16-bit NOR Flash
- Ethernet
    	- Two on-board RGMII 10/100/1G ethernet ports.
    	- PHY #0 remains powered up during deep-sleep
- CPLD
- Clocks
    	- System and DDR clock (SYSCLK, “DDRCLK”)
    	- SERDES clocks
- Power Supplies
- USB
    	- Supports two USB 2.0 ports with integrated PHYs
    	- Two type A ports with 5V@1.5A per port.
- SDHC
    	- SDHC/SDXC connector
- SPI
    	- On-board 64MB SPI flash
- I2C
    	- Device connected: EEPROM, thermal monitor, VID controller, RTC
- Other IO
    	- Two Serial ports
    	- ProfiBus port

Add support for T1042RDB_PI board:
    -add device tree
    -Add entry in corenet_generic.c, as it is similar to other corenet platforms

Signed-off-by: Poonam Aggrwal &lt;poonam.aggrwal@freescale.com&gt;
Signed-off-by: Prabhakar Kushwaha &lt;prabhakar@freescale.com&gt;
Signed-off-by: Priyanka Jain &lt;Priyanka.Jain@freescale.com&gt;
Signed-off-by: Scott Wood &lt;scottwood@freescale.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>powerpc/fsl-booke: Add initial T1040/T1042 RDB board support</title>
<updated>2014-09-09T23:28:10+00:00</updated>
<author>
<name>Priyanka Jain</name>
<email>Priyanka.Jain@freescale.com</email>
</author>
<published>2014-09-05T10:44:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=0babcd1c1489ae31bf0cea34fad24b3f047ad79c'/>
<id>0babcd1c1489ae31bf0cea34fad24b3f047ad79c</id>
<content type='text'>
T1040/T1042RDB is Freescale Reference Design Board.
The board can support both T1040/T1042 QorIQ Power Architecture™ processor.

T1040/T1042RDB board Overview
-----------------------
- SERDES Connections, 8 lanes supporting:
	- PCI
	- SGMII
    	- QSGMII
    	- SATA 2.0
- DDR Controller
    	- Supports rates of up to 1600 MHz data-rate
    	- Supports one DDR3LP UDIMM
-IFC/Local Bus
    	- NAND flash: 1GB 8-bit NAND flash
    	- NOR: 128MB 16-bit NOR Flash
- Ethernet
    	- Two on-board RGMII 10/100/1G ethernet ports.
    	- PHY #0 remains powered up during deep-sleep
- CPLD
- Clocks
    	- System and DDR clock (SYSCLK, “DDRCLK”)
    	- SERDES clocks
- Power Supplies
- USB
    	- Supports two USB 2.0 ports with integrated PHYs
    	- Two type A ports with 5V@1.5A per port.
- SDHC
    	- SDHC/SDXC connector
- SPI
    	- On-board 64MB SPI flash
- I2C
    	- Devices connected: EEPROM, thermal monitor, VID controller
- Other IO
    	- Two Serial ports
    	- ProfiBus port

Add support for T1040/T1042 RDB board:
    -add device tree
    -add entry in Kconfig to build
    -Add entry in corenet_generic.c, as it is similar to other corenet platforms

Signed-off-by: Priyanka Jain &lt;Priyanka.Jain@freescale.com&gt;
Signed-off-by: Poonam Aggrwal &lt;poonam.aggrwal@freescale.com&gt;
Signed-off-by: Prabhakar Kushwaha &lt;prabhakar@freescale.com&gt;
Signed-off-by: Scott Wood &lt;scottwood@freescale.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
T1040/T1042RDB is Freescale Reference Design Board.
The board can support both T1040/T1042 QorIQ Power Architecture™ processor.

T1040/T1042RDB board Overview
-----------------------
- SERDES Connections, 8 lanes supporting:
	- PCI
	- SGMII
    	- QSGMII
    	- SATA 2.0
- DDR Controller
    	- Supports rates of up to 1600 MHz data-rate
    	- Supports one DDR3LP UDIMM
-IFC/Local Bus
    	- NAND flash: 1GB 8-bit NAND flash
    	- NOR: 128MB 16-bit NOR Flash
- Ethernet
    	- Two on-board RGMII 10/100/1G ethernet ports.
    	- PHY #0 remains powered up during deep-sleep
- CPLD
- Clocks
    	- System and DDR clock (SYSCLK, “DDRCLK”)
    	- SERDES clocks
- Power Supplies
- USB
    	- Supports two USB 2.0 ports with integrated PHYs
    	- Two type A ports with 5V@1.5A per port.
- SDHC
    	- SDHC/SDXC connector
- SPI
    	- On-board 64MB SPI flash
- I2C
    	- Devices connected: EEPROM, thermal monitor, VID controller
- Other IO
    	- Two Serial ports
    	- ProfiBus port

Add support for T1040/T1042 RDB board:
    -add device tree
    -add entry in Kconfig to build
    -Add entry in corenet_generic.c, as it is similar to other corenet platforms

Signed-off-by: Priyanka Jain &lt;Priyanka.Jain@freescale.com&gt;
Signed-off-by: Poonam Aggrwal &lt;poonam.aggrwal@freescale.com&gt;
Signed-off-by: Prabhakar Kushwaha &lt;prabhakar@freescale.com&gt;
Signed-off-by: Scott Wood &lt;scottwood@freescale.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>powerpc: dts: t4240: Change T4240 USB controller version</title>
<updated>2014-09-03T23:58:14+00:00</updated>
<author>
<name>Nikhil Badola</name>
<email>nikhil.badola@freescale.com</email>
</author>
<published>2014-08-28T03:51:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=26a047ab101a6ab765b805c7417e82e1ed413ff2'/>
<id>26a047ab101a6ab765b805c7417e82e1ed413ff2</id>
<content type='text'>
Change USB controller version to 2.5 in compatible string for T4240

Signed-off-by: Nikhil Badola &lt;nikhil.badola@freescale.com&gt;
Signed-off-by: Scott Wood &lt;scottwood@freescale.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change USB controller version to 2.5 in compatible string for T4240

Signed-off-by: Nikhil Badola &lt;nikhil.badola@freescale.com&gt;
Signed-off-by: Scott Wood &lt;scottwood@freescale.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>powerpc/simpleboot: fix comment</title>
<updated>2014-08-26T07:35:57+00:00</updated>
<author>
<name>Geert Uytterhoeven</name>
<email>geert@linux-m68k.org</email>
</author>
<published>2014-06-29T10:21:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c614f13a9680a483f3558e20dc5fa350700f83fb'/>
<id>c614f13a9680a483f3558e20dc5fa350700f83fb</id>
<content type='text'>
Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Cc: Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc</title>
<updated>2014-08-14T16:14:07+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2014-08-14T16:14:07+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=1d508f8ace3e78e96da70f1cf4e36b80f22b5fa9'/>
<id>1d508f8ace3e78e96da70f1cf4e36b80f22b5fa9</id>
<content type='text'>
Pull more powerpc updates from Ben Herrenschmidt:
 "Here are some more powerpc bits for 3.17, essentially fixes.

  The biggest series, also aimed at -stable, is from Aneesh and is the
  result of weeks and weeks of debugging to find out why the heck or THP
  implementation was occasionally triggering multi-hit errors in our
  level 1 TLB.  It ended up being a combination of issues including
  subtleties as to how we should invalidate those special 'MPSS' pages
  we use to allow the use of 16M pages inside 4K/64K "base page size"
  segments (you really have to love our MMU !)

  Another interesting one in the "OMG" category is the series from
  Michael adding memory barriers to spin_is_locked().  That's also the
  result of many days of debugging to figure out why the semaphore code
  would occasionally crash in ways that made no sense.  It ended up
  being some creative lock stacking that was defeated by the fact that
  our locks allow a load inside the locked section to be re-ordered with
  the load of the lock value itself (I'm still of two mind about whether
  to kill that once and for all by putting a heavier barrier back into
  our lock implementation...).  The fixes come with a long explanation
  in the cset comments, feel free to read it if you feel like having a
  headache today"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (25 commits)
  powerpc/thp: Add tracepoints to track hugepage invalidate
  powerpc/mm: Use read barrier when creating real_pte
  powerpc/thp: Use ACCESS_ONCE when loading pmdp
  powerpc/thp: Invalidate with vpn in loop
  powerpc/thp: Handle combo pages in invalidate
  powerpc/thp: Invalidate old 64K based hash page mapping before insert of 4k pte
  powerpc/thp: Don't recompute vsid and ssize in loop on invalidate
  powerpc/thp: Add write barrier after updating the valid bit
  powerpc: reorder per-cpu NUMA information's initialization
  powerpc/perf/hv-24x7: Use kmem_cache_free
  powerpc/pseries/hvcserver: Fix endian issue in hvcs_get_partner_info
  powerpc: Hard disable interrupts in xmon
  powerpc: remove duplicate definition of TEXASR_FS
  powerpc/pseries: Avoid deadlock on removing ddw
  powerpc/pseries: Failure on removing device node
  powerpc/boot: Use correct zlib types for comparison
  powerpc/powernv: Interface to register/unregister opal dump region
  printk: Add function to return log buffer address and size
  powerpc: Add POWER8 features to CPU_FTRS_POSSIBLE/ALWAYS
  powerpc/ppc476: Disable BTAC
  ...
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<pre>
Pull more powerpc updates from Ben Herrenschmidt:
 "Here are some more powerpc bits for 3.17, essentially fixes.

  The biggest series, also aimed at -stable, is from Aneesh and is the
  result of weeks and weeks of debugging to find out why the heck or THP
  implementation was occasionally triggering multi-hit errors in our
  level 1 TLB.  It ended up being a combination of issues including
  subtleties as to how we should invalidate those special 'MPSS' pages
  we use to allow the use of 16M pages inside 4K/64K "base page size"
  segments (you really have to love our MMU !)

  Another interesting one in the "OMG" category is the series from
  Michael adding memory barriers to spin_is_locked().  That's also the
  result of many days of debugging to figure out why the semaphore code
  would occasionally crash in ways that made no sense.  It ended up
  being some creative lock stacking that was defeated by the fact that
  our locks allow a load inside the locked section to be re-ordered with
  the load of the lock value itself (I'm still of two mind about whether
  to kill that once and for all by putting a heavier barrier back into
  our lock implementation...).  The fixes come with a long explanation
  in the cset comments, feel free to read it if you feel like having a
  headache today"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (25 commits)
  powerpc/thp: Add tracepoints to track hugepage invalidate
  powerpc/mm: Use read barrier when creating real_pte
  powerpc/thp: Use ACCESS_ONCE when loading pmdp
  powerpc/thp: Invalidate with vpn in loop
  powerpc/thp: Handle combo pages in invalidate
  powerpc/thp: Invalidate old 64K based hash page mapping before insert of 4k pte
  powerpc/thp: Don't recompute vsid and ssize in loop on invalidate
  powerpc/thp: Add write barrier after updating the valid bit
  powerpc: reorder per-cpu NUMA information's initialization
  powerpc/perf/hv-24x7: Use kmem_cache_free
  powerpc/pseries/hvcserver: Fix endian issue in hvcs_get_partner_info
  powerpc: Hard disable interrupts in xmon
  powerpc: remove duplicate definition of TEXASR_FS
  powerpc/pseries: Avoid deadlock on removing ddw
  powerpc/pseries: Failure on removing device node
  powerpc/boot: Use correct zlib types for comparison
  powerpc/powernv: Interface to register/unregister opal dump region
  printk: Add function to return log buffer address and size
  powerpc: Add POWER8 features to CPU_FTRS_POSSIBLE/ALWAYS
  powerpc/ppc476: Disable BTAC
  ...
</pre>
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