---

yaml
---
r: 200295
b: refs/heads/master
c: 7c8d20d
h: refs/heads/master
i:
  200293: e04f201
  200291: da00d0e
  200287: a26154b
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9a40ac86152c9cffd3dca482a15ddf9a8c5716b3
+refs/heads/master: 7c8d20d40f29e7c08332d406d7a65678dece4627

trunk/.gitignore

@@ -28,6 +28,7 @@ modules.builtin
 *.gz
 *.bz2
 *.lzma
+*.lzo
 *.patch
 *.gcno
 

trunk/Documentation/.gitignore

@@ -0,0 +1,7 @@
+filesystems/dnotify_test
+laptops/dslm
+timers/hpet_example
+vm/hugepage-mmap
+vm/hugepage-shm
+vm/map_hugetlb
+

trunk/Documentation/DocBook/drm.tmpl

@@ -389,7 +389,7 @@
       </para>
       <para>
 	If your driver supports memory management (it should!), you'll
-	need to set that up at load time as well.  How you intialize
+	need to set that up at load time as well.  How you initialize
 	it depends on which memory manager you're using, TTM or GEM.
       </para>
       <sect3>
@@ -399,7 +399,7 @@
 	  aperture space for graphics devices. TTM supports both UMA devices
 	  and devices with dedicated video RAM (VRAM), i.e. most discrete
 	  graphics devices.  If your device has dedicated RAM, supporting
-	  TTM is desireable.  TTM also integrates tightly with your
+	  TTM is desirable.  TTM also integrates tightly with your
 	  driver specific buffer execution function.  See the radeon
 	  driver for examples.
 	</para>
@@ -443,7 +443,7 @@
 	  likely eventually calling ttm_bo_global_init and
 	  ttm_bo_global_release, respectively.  Also like the previous
 	  object, ttm_global_item_ref is used to create an initial reference
-	  count for the TTM, which will call your initalization function.
+	  count for the TTM, which will call your initialization function.
 	</para>
       </sect3>
       <sect3>
@@ -557,7 +557,7 @@ void intel_crt_init(struct drm_device *dev)
 	  CRT connector and encoder combination is created.  A device
 	  specific i2c bus is also created, for fetching EDID data and
 	  performing monitor detection.  Once the process is complete,
-	  the new connector is regsitered with sysfs, to make its
+	  the new connector is registered with sysfs, to make its
 	  properties available to applications.
 	</para>
 	<sect4>
@@ -581,12 +581,12 @@ void intel_crt_init(struct drm_device *dev)
 	<para>
 	  For each encoder, CRTC and connector, several functions must
 	  be provided, depending on the object type.  Encoder objects
-	  need should provide a DPMS (basically on/off) function, mode fixup
+	  need to provide a DPMS (basically on/off) function, mode fixup
 	  (for converting requested modes into native hardware timings),
 	  and prepare, set and commit functions for use by the core DRM
 	  helper functions.  Connector helpers need to provide mode fetch and
 	  validity functions as well as an encoder matching function for
-	  returing an ideal encoder for a given connector.  The core
+	  returning an ideal encoder for a given connector.  The core
 	  connector functions include a DPMS callback, (deprecated)
 	  save/restore routines, detection, mode probing, property handling,
 	  and cleanup functions.

trunk/Documentation/DocBook/v4l/v4l2.xml

@@ -58,7 +58,7 @@ MPEG stream embedded, sliced VBI data format in this specification.
 </contrib>
 	<affiliation>
 	  <address>
-	    <email>awalls@radix.net</email>
+	    <email>awalls@md.metrocast.net</email>
 	  </address>
 	</affiliation>
       </author>

trunk/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml

@@ -53,8 +53,10 @@ input</refpurpose>
 automatically, similar to sensing the video standard. To do so, applications
 call <constant> VIDIOC_QUERY_DV_PRESET</constant> with a pointer to a
 &v4l2-dv-preset; type. Once the hardware detects a preset, that preset is
-returned in the preset field of &v4l2-dv-preset;. When detection is not
-possible or fails, the value V4L2_DV_INVALID is returned.</para>
+returned in the preset field of &v4l2-dv-preset;. If the preset could not be
+detected because there was no signal, or the signal was unreliable, or the
+signal did not map to a supported preset, then the value V4L2_DV_INVALID is
+returned.</para>
   </refsect1>
 
   <refsect1>

trunk/Documentation/edac.txt

@@ -6,6 +6,8 @@ Written by Doug Thompson <dougthompson@xmission.com>
 7 Dec 2005
 17 Jul 2007	Updated
 
+(c) Mauro Carvalho Chehab <mchehab@redhat.com>
+05 Aug 2009	Nehalem interface
 
 EDAC is maintained and written by:
 
@@ -717,3 +719,153 @@ unique drivers for their hardware systems.
 The 'test_device_edac' sample driver is located at the
 bluesmoke.sourceforge.net project site for EDAC.
 
+=======================================================================
+NEHALEM USAGE OF EDAC APIs
+
+This chapter documents some EXPERIMENTAL mappings for EDAC API to handle
+Nehalem EDAC driver. They will likely be changed on future versions
+of the driver.
+
+Due to the way Nehalem exports Memory Controller data, some adjustments
+were done at i7core_edac driver. This chapter will cover those differences
+
+1) On Nehalem, there are one Memory Controller per Quick Patch Interconnect
+   (QPI). At the driver, the term "socket" means one QPI. This is
+   associated with a physical CPU socket.
+
+   Each MC have 3 physical read channels, 3 physical write channels and
+   3 logic channels. The driver currenty sees it as just 3 channels.
+   Each channel can have up to 3 DIMMs.
+
+   The minimum known unity is DIMMs. There are no information about csrows.
+   As EDAC API maps the minimum unity is csrows, the driver sequencially
+   maps channel/dimm into different csrows.
+
+   For example, suposing the following layout:
+	Ch0 phy rd0, wr0 (0x063f4031): 2 ranks, UDIMMs
+	  dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
+	  dimm 1 1024 Mb offset: 4, bank: 8, rank: 1, row: 0x4000, col: 0x400
+        Ch1 phy rd1, wr1 (0x063f4031): 2 ranks, UDIMMs
+	  dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
+	Ch2 phy rd3, wr3 (0x063f4031): 2 ranks, UDIMMs
+	  dimm 0 1024 Mb offset: 0, bank: 8, rank: 1, row: 0x4000, col: 0x400
+   The driver will map it as:
+	csrow0: channel 0, dimm0
+	csrow1: channel 0, dimm1
+	csrow2: channel 1, dimm0
+	csrow3: channel 2, dimm0
+
+exports one
+   DIMM per csrow.
+
+   Each QPI is exported as a different memory controller.
+
+2) Nehalem MC has the hability to generate errors. The driver implements this
+   functionality via some error injection nodes:
+
+   For injecting a memory error, there are some sysfs nodes, under
+   /sys/devices/system/edac/mc/mc?/:
+
+   inject_addrmatch/*:
+      Controls the error injection mask register. It is possible to specify
+      several characteristics of the address to match an error code:
+         dimm = the affected dimm. Numbers are relative to a channel;
+         rank = the memory rank;
+         channel = the channel that will generate an error;
+         bank = the affected bank;
+         page = the page address;
+         column (or col) = the address column.
+      each of the above values can be set to "any" to match any valid value.
+
+      At driver init, all values are set to any.
+
+      For example, to generate an error at rank 1 of dimm 2, for any channel,
+      any bank, any page, any column:
+		echo 2 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/dimm
+		echo 1 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/rank
+
+	To return to the default behaviour of matching any, you can do:
+		echo any >/sys/devices/system/edac/mc/mc0/inject_addrmatch/dimm
+		echo any >/sys/devices/system/edac/mc/mc0/inject_addrmatch/rank
+
+   inject_eccmask:
+       specifies what bits will have troubles,
+
+   inject_section:
+       specifies what ECC cache section will get the error:
+		3 for both
+		2 for the highest
+		1 for the lowest
+
+   inject_type:
+       specifies the type of error, being a combination of the following bits:
+		bit 0 - repeat
+		bit 1 - ecc
+		bit 2 - parity
+
+       inject_enable starts the error generation when something different
+       than 0 is written.
+
+   All inject vars can be read. root permission is needed for write.
+
+   Datasheet states that the error will only be generated after a write on an
+   address that matches inject_addrmatch. It seems, however, that reading will
+   also produce an error.
+
+   For example, the following code will generate an error for any write access
+   at socket 0, on any DIMM/address on channel 2:
+
+   echo 2 >/sys/devices/system/edac/mc/mc0/inject_addrmatch/channel
+   echo 2 >/sys/devices/system/edac/mc/mc0/inject_type
+   echo 64 >/sys/devices/system/edac/mc/mc0/inject_eccmask
+   echo 3 >/sys/devices/system/edac/mc/mc0/inject_section
+   echo 1 >/sys/devices/system/edac/mc/mc0/inject_enable
+   dd if=/dev/mem of=/dev/null seek=16k bs=4k count=1 >& /dev/null
+
+   For socket 1, it is needed to replace "mc0" by "mc1" at the above
+   commands.
+
+   The generated error message will look like:
+
+   EDAC MC0: UE row 0, channel-a= 0 channel-b= 0 labels "-": NON_FATAL (addr = 0x0075b980, socket=0, Dimm=0, Channel=2, syndrome=0x00000040, count=1, Err=8c0000400001009f:4000080482 (read error: read ECC error))
+
+3) Nehalem specific Corrected Error memory counters
+
+   Nehalem have some registers to count memory errors. The driver uses those
+   registers to report Corrected Errors on devices with Registered Dimms.
+
+   However, those counters don't work with Unregistered Dimms. As the chipset
+   offers some counters that also work with UDIMMS (but with a worse level of
+   granularity than the default ones), the driver exposes those registers for
+   UDIMM memories.
+
+   They can be read by looking at the contents of all_channel_counts/
+
+   $ for i in /sys/devices/system/edac/mc/mc0/all_channel_counts/*; do echo $i; cat $i; done
+	/sys/devices/system/edac/mc/mc0/all_channel_counts/udimm0
+	0
+	/sys/devices/system/edac/mc/mc0/all_channel_counts/udimm1
+	0
+	/sys/devices/system/edac/mc/mc0/all_channel_counts/udimm2
+	0
+
+   What happens here is that errors on different csrows, but at the same
+   dimm number will increment the same counter.
+   So, in this memory mapping:
+	csrow0: channel 0, dimm0
+	csrow1: channel 0, dimm1
+	csrow2: channel 1, dimm0
+	csrow3: channel 2, dimm0
+   The hardware will increment udimm0 for an error at the first dimm at either
+	csrow0, csrow2  or csrow3;
+   The hardware will increment udimm1 for an error at the second dimm at either
+	csrow0, csrow2  or csrow3;
+   The hardware will increment udimm2 for an error at the third dimm at either
+	csrow0, csrow2  or csrow3;
+
+4) Standard error counters
+
+   The standard error counters are generated when an mcelog error is received
+   by the driver. Since, with udimm, this is counted by software, it is
+   possible that some errors could be lost. With rdimm's, they displays the
+   contents of the registers

trunk/Documentation/feature-removal-schedule.txt

@@ -578,15 +578,6 @@ Who:	Avi Kivity <avi@redhat.com>
 
 ----------------------------
 
-What: 	"acpi=ht" boot option
-When:	2.6.35
-Why:	Useful in 2003, implementation is a hack.
-	Generally invoked by accident today.
-	Seen as doing more harm than good.
-Who:	Len Brown <len.brown@intel.com>
-
-----------------------------
-
 What:	iwlwifi 50XX module parameters
 When:	2.6.40
 Why:	The "..50" modules parameters were used to configure 5000 series and

trunk/Documentation/filesystems/xfs-delayed-logging-design.txt

@@ -794,11 +794,6 @@ designed.
 
 Roadmap:
 
-2.6.35 Inclusion in mainline as an experimental mount option
-	=> approximately 2-3 months to merge window
-	=> needs to be in xfs-dev tree in 4-6 weeks
-	=> code is nearing readiness for review
-
 2.6.37 Remove experimental tag from mount option
 	=> should be roughly 6 months after initial merge
 	=> enough time to:

trunk/Documentation/i2c/busses/i2c-ali1535

@@ -6,12 +6,12 @@ Supported adapters:
 	http://www.ali.com.tw/eng/support/datasheet_request.php
 
 Authors:
-	Frodo Looijaard <frodol@dds.nl>, 
+	Frodo Looijaard <frodol@dds.nl>,
 	Philip Edelbrock <phil@netroedge.com>,
 	Mark D. Studebaker <mdsxyz123@yahoo.com>,
 	Dan Eaton <dan.eaton@rocketlogix.com>,
 	Stephen Rousset<stephen.rousset@rocketlogix.com>
-												
+
 Description
 -----------
 

trunk/Documentation/i2c/busses/i2c-ali1563

@@ -18,7 +18,7 @@ For an overview of these chips see http://www.acerlabs.com
 The M1563 southbridge is deceptively similar to the M1533, with a few
 notable exceptions. One of those happens to be the fact they upgraded the
 i2c core to be SMBus 2.0 compliant, and happens to be almost identical to
-the i2c controller found in the Intel 801 south bridges. 
+the i2c controller found in the Intel 801 south bridges.
 
 Features
 --------

trunk/Documentation/i2c/busses/i2c-ali15x3

@@ -6,8 +6,8 @@ Supported adapters:
 	http://www.ali.com.tw/eng/support/datasheet_request.php
 
 Authors:
-	Frodo Looijaard <frodol@dds.nl>, 
-	Philip Edelbrock <phil@netroedge.com>, 
+	Frodo Looijaard <frodol@dds.nl>,
+	Philip Edelbrock <phil@netroedge.com>,
 	Mark D. Studebaker <mdsxyz123@yahoo.com>
 
 Module Parameters
@@ -40,10 +40,10 @@ M1541 and M1543C South Bridges.
 The M1543C is a South bridge for desktop systems.
 The M1541 is a South bridge for portable systems.
 They are part of the following ALI chipsets:
-   
- * "Aladdin Pro 2" includes the M1621 Slot 1 North bridge with AGP and 
+
+ * "Aladdin Pro 2" includes the M1621 Slot 1 North bridge with AGP and
  		100MHz CPU Front Side bus
- * "Aladdin V" includes the M1541 Socket 7 North bridge with AGP and 100MHz 
+ * "Aladdin V" includes the M1541 Socket 7 North bridge with AGP and 100MHz
  		CPU Front Side bus
    Some Aladdin V motherboards:
 	Asus P5A
@@ -77,7 +77,7 @@ output of lspci will show something similar to the following:
 ** then run lspci.
 ** If you see the 1533 and 5229 devices but NOT the 7101 device,
 ** then you must enable ACPI, the PMU, SMB, or something similar
-** in the BIOS. 
+** in the BIOS.
 ** The driver won't work if it can't find the M7101 device.
 
 The SMB controller is part of the M7101 device, which is an ACPI-compliant
@@ -87,8 +87,8 @@ The whole M7101 device has to be enabled for the SMB to work. You can't
 just enable the SMB alone. The SMB and the ACPI have separate I/O spaces.
 We make sure that the SMB is enabled. We leave the ACPI alone.
 
-Features 
--------- 
+Features
+--------
 
 This driver controls the SMB Host only. The SMB Slave
 controller on the M15X3 is not enabled. This driver does not use

trunk/Documentation/i2c/busses/i2c-pca-isa

@@ -1,23 +1,23 @@
 Kernel driver i2c-pca-isa
 
 Supported adapters:
-This driver supports ISA boards using the Philips PCA 9564 
-Parallel bus to I2C bus controller 
+This driver supports ISA boards using the Philips PCA 9564
+Parallel bus to I2C bus controller
 
-Author: Ian Campbell <icampbell@arcom.com>, Arcom Control Systems 
+Author: Ian Campbell <icampbell@arcom.com>, Arcom Control Systems
 
 Module Parameters
 -----------------
 
 * base int
  I/O base address
 * irq int
- IRQ interrupt 
-* clock int 
+ IRQ interrupt
+* clock int
  Clock rate as described in table 1 of PCA9564 datasheet
 
 Description
 -----------
 
-This driver supports ISA boards using the Philips PCA 9564 
-Parallel bus to I2C bus controller 
+This driver supports ISA boards using the Philips PCA 9564
+Parallel bus to I2C bus controller