platform/kernel/linux-starfive.git
8 years ago[media] gsc-m2m: Use an unsigned data type for a variable
Markus Elfring [Sat, 19 Dec 2015 14:28:37 +0000 (12:28 -0200)]
[media] gsc-m2m: Use an unsigned data type for a variable

The data type "int" was used by the variable "ret" in the
gsc_m2m_poll() function despite of the aspect that the type "unsigned int"
will usually be needed for the return value from a call of the
v4l2_m2m_poll() function.
Improve this implementation detail by addition of the type modifier then.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] staging: media: lirc: space around operator
Sudip Mukherjee [Fri, 18 Dec 2015 13:05:27 +0000 (11:05 -0200)]
[media] staging: media: lirc: space around operator

checkpatch complains about missing space around operators.

[mchehab@osg.samsung.com: removed obsolete hunks]
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] staging: media: lirc: no space after cast
Sudip Mukherjee [Fri, 18 Dec 2015 13:05:26 +0000 (11:05 -0200)]
[media] staging: media: lirc: no space after cast

checkpatch complains about space after type cast.

[mchehab@osg.samsung.com: removed an obsolete hunk]
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] staging: media: lirc: replace NULL comparisons with !var
Sudip Mukherjee [Fri, 18 Dec 2015 13:05:25 +0000 (11:05 -0200)]
[media] staging: media: lirc: replace NULL comparisons with !var

A NULL comparison can be written as if (var) or if (!var).
Reported by checkpatch.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] mt9v032: Add reset and standby gpios
Markus Pargmann [Mon, 14 Dec 2015 14:41:51 +0000 (12:41 -0200)]
[media] mt9v032: Add reset and standby gpios

Add optional reset and standby gpios. The reset gpio is used to reset
the chip in power_on().

The standby gpio is not used currently. It is just unset, so the chip is
not in standby.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] davinci: ccdc_update_raw_params() frees the wrong thing
Al Viro [Sun, 13 Dec 2015 00:32:01 +0000 (22:32 -0200)]
[media] davinci: ccdc_update_raw_params() frees the wrong thing

Passing a physical address to free_pages() is a bad idea.
config_params->fault_pxl.fpc_table_addr is set to virt_to_phys()
of __get_free_pages() return value; what we should pass to free_pages()
is its phys_to_virt().  ccdc_close() does that properly, but
ccdc_update_raw_params() doesn't.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Fix breakage for serial usage
Mauro Carvalho Chehab [Mon, 25 Jan 2016 16:39:34 +0000 (14:39 -0200)]
[media] tvp5150: Fix breakage for serial usage

changeset 460b6c0831cb ("tvp5150: Add s_stream subdev operation
support") broke for em28xx-based devices with uses tvp5150. On those
devices, touching the TVP5150_MISC_CTL register causes em28xx to stop
streaming.

I suspect that it uses the 27 MHz clock provided by tvp5150 to feed
em28xx. So, change the logic to do nothing on s_stream if the tvp5150 is
not set up to work with V4L2_MBUS_PARALLEL.

Tested with Hauppauge WinTV USB 2 model 42012 Rev. C186
(USB ID: 2040:4200).

Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] : cxd2830r: use gpiochip data pointer
Linus Walleij [Wed, 9 Dec 2015 13:46:55 +0000 (11:46 -0200)]
[media] : cxd2830r: use gpiochip data pointer

This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().

Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] si2165: Reject DVB-T bandwidth auto mode
Matthias Schwarzott [Thu, 3 Dec 2015 20:12:50 +0000 (18:12 -0200)]
[media] si2165: Reject DVB-T bandwidth auto mode

The si2165 does not support bandwidth auto-detection.
Reject the request.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] dw2102: use the new USB ID Terratec Cinergy S2 macros
Mauro Carvalho Chehab [Mon, 25 Jan 2016 14:47:44 +0000 (12:47 -0200)]
[media] dw2102: use the new USB ID Terratec Cinergy S2 macros

Now that this was defined at usb-id.h, update the values for
USB_PID_TERRATEC_CINERGY_S2_R1 and USB_PID_TERRATEC_CINERGY_S2_R2.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] Add support for Terratec Cinergy S2 Rev.4
Benjamin Larsson [Sun, 29 Nov 2015 01:53:31 +0000 (23:53 -0200)]
[media] Add support for Terratec Cinergy S2 Rev.4

Also Add Terratec Cinergy S2 usb id's

Signed-off-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] media: rc: raw: improve FIFO handling
Heiner Kallweit [Fri, 27 Nov 2015 22:02:38 +0000 (20:02 -0200)]
[media] media: rc: raw: improve FIFO handling

The FIFO is used for ir_raw_event records, however for some historic
reason the FIFO is used on a per byte basis. IMHO this adds unneeded
complexity. Therefore set up the FIFO for ir_raw_event records.

This also allows to define the FIFO statically as part of
ir_raw_event_ctrl instead of having to allocate the FIFO dynamically.
In addition:

- When writing into the FIFO and it's full return ENOSPC instead of
  ENOMEM thus making it easier to tell between "FIFO full" and
  "Dynamic memory allocation failed" when the error is propagated to
  a higher level.
  Also add an error message.

- When reading from the FIFO check whether it's empty.
  This is not strictly needed here but kfifo_out is annotated
  "must check" anyway.

Successfully tested it with the nuvoton-cir driver.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] media: rc: nuvoton: mark wakeup-related resources
Heiner Kallweit [Fri, 27 Nov 2015 21:38:44 +0000 (19:38 -0200)]
[media] media: rc: nuvoton: mark wakeup-related resources

When requesting resources use different names for the normal and
the wakeup part. This makes it easier to interpret the output
of e.g. /proc/interrupts and /proc/ioports.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] dib8000: Add support for Mygica/Geniatech S2870
Nicolas Sugino [Thu, 26 Nov 2015 21:00:28 +0000 (19:00 -0200)]
[media] dib8000: Add support for Mygica/Geniatech S2870

MyGica/Geniatech S2870 is very similar to the S870 but with dual tuner. The card is recognised as Geniatech STK8096-PVR.

[mchehab@osg.samsung.com: Fix some checkpatch.pl issues]
Signed-off-by: Nicolas Sugino <nsugino@3way.com.ar>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] media: change email address
Patrick Boettcher [Sun, 24 Jan 2016 14:56:58 +0000 (12:56 -0200)]
[media] media: change email address

Soon my dibcom.fr/parrot.com-address won't respond anymore.
Thus I'm replacing it. And, while being at it,
let's adapt some other (old) email-addresses as well.

Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Add OF match table
Eduard Gavin [Thu, 7 Jan 2016 12:46:48 +0000 (10:46 -0200)]
[media] tvp5150: Add OF match table

The Documentation/devicetree/bindings/media/i2c/tvp5150.txt DT binding doc
lists "ti,tvp5150" as the device compatible string but the driver does not
have an OF match table. Add the table to the driver so the I2C core can do
an OF style match.

Signed-off-by: Eduard Gavin <egavinc@gmail.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Configure data interface via DT
Javier Martinez Canillas [Thu, 7 Jan 2016 12:46:50 +0000 (10:46 -0200)]
[media] tvp5150: Configure data interface via DT

The video decoder supports either 8-bit 4:2:2 YUV with discrete syncs
or 8-bit ITU-R BT.656 with embedded syncs output format but currently
BT.656 it's always reported. Allow to configure the format to use via
either platform data or a device tree definition.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Initialize the chip on probe
Javier Martinez Canillas [Thu, 7 Jan 2016 12:46:49 +0000 (10:46 -0200)]
[media] tvp5150: Initialize the chip on probe

After power-up, the tvp5150 decoder is in a unknown state until the
RESETB pin is driven LOW which reset all the registers and restarts
the chip's internal state machine.

The init sequence has some timing constraints and the RESETB signal
can only be used if the PDN (Power-down) pin is first released.

So, the initialization sequence is as follows:

1- PDN (active-low) is driven HIGH so the chip is power-up
2- A 20 ms delay is needed before sending a RESETB (active-low) signal.
3- The RESETB pulse duration is 500 ns.
4- A 200 us delay is needed for the I2C client to be active after reset.

This patch used as a reference the logic in the IGEPv2 board file from
the ISEE 2.6.37 vendor tree.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Add device tree binding document
Javier Martinez Canillas [Thu, 7 Jan 2016 12:46:47 +0000 (10:46 -0200)]
[media] tvp5150: Add device tree binding document

Add a Device Tree binding document for the TVP5150 video decoder.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Add g_mbus_config subdev operation support
Laurent Pinchart [Thu, 7 Jan 2016 12:46:46 +0000 (10:46 -0200)]
[media] tvp5150: Add g_mbus_config subdev operation support

This patch adds the .g_mbus_config subdev operation to the driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Add s_stream subdev operation support
Laurent Pinchart [Thu, 7 Jan 2016 12:46:45 +0000 (10:46 -0200)]
[media] tvp5150: Add s_stream subdev operation support

This patch adds the .s_stream subdev operation to the driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Add pixel rate control support
Laurent Pinchart [Thu, 7 Jan 2016 12:46:44 +0000 (10:46 -0200)]
[media] tvp5150: Add pixel rate control support

This patch adds support for the V4L2_CID_PIXEL_RATE control.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Add tvp5151 support
Laurent Pinchart [Thu, 7 Jan 2016 12:46:42 +0000 (10:46 -0200)]
[media] tvp5150: Add tvp5151 support

Expand the version detection code to identity the tvp5151.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] tvp5150: Restructure version detection
Laurent Pinchart [Thu, 7 Jan 2016 12:46:41 +0000 (10:46 -0200)]
[media] tvp5150: Restructure version detection

Move the version detection code to a separate function and restructure
it to prepare for TVP5151 support.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] davinci_vpfe: make checkpatch happy
Joseph Marrero [Wed, 25 Nov 2015 22:38:43 +0000 (20:38 -0200)]
[media] davinci_vpfe: make checkpatch happy

This WARNING was found using the checkpatch tool:
Block comments use * on the subsequent lines

Signed-off-by: Joseph Marrero <jmarrero@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] soc_camera: constify v4l2_subdev_sensor_ops structures
Julia Lawall [Sun, 22 Nov 2015 09:12:56 +0000 (07:12 -0200)]
[media] soc_camera: constify v4l2_subdev_sensor_ops structures

The v4l2_subdev_sensor_ops structures are never modified, so declare them
as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] soc_camera: rcar_vin: Add R-Car Gen3 support
Yoshihiko Mori [Sun, 13 Dec 2015 15:27:16 +0000 (13:27 -0200)]
[media] soc_camera: rcar_vin: Add R-Car Gen3 support

Add chip identification for R-Car Gen3.

Signed-off-by: Yoshihiko Mori <yoshihiko.mori.nx@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] sh_mobile_ceu_camera: use soc_camera_from_vb2q
Geliang Tang [Tue, 5 Jan 2016 14:49:57 +0000 (12:49 -0200)]
[media] sh_mobile_ceu_camera: use soc_camera_from_vb2q

Use soc_camera_from_vb2q() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] v4l: omap3isp: Fix data lane shift configuration
Laurent Pinchart [Tue, 29 Dec 2015 14:03:19 +0000 (12:03 -0200)]
[media] v4l: omap3isp: Fix data lane shift configuration

The data-shift DT property speficies the number of bits to be shifted,
but the driver still interprets the value as a multiple of two bits as
used by now removed platform data support. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] v4l: omap3isp: preview: Mark output buffer done first
Sakari Ailus [Tue, 10 Nov 2015 23:34:18 +0000 (21:34 -0200)]
[media] v4l: omap3isp: preview: Mark output buffer done first

The sequence number counter is incremented on each output buffer, and that
incremented value is used as the sequence number of that buffer. The input
buffer sequence numbering is based just on reading the same counter. If
the input buffer is marked done first, its sequence number ends up being
that of the output buffer - 1.

This is how the resizer works as well.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] v4l: omap3isp: Fix handling platform_get_irq result
Andrzej Hajda [Thu, 24 Sep 2015 14:00:12 +0000 (11:00 -0300)]
[media] v4l: omap3isp: Fix handling platform_get_irq result

The function can return negative value.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] v4l: omap3isp: use vb2_buffer_state enum for vb2 buffer state
Lad, Prabhakar [Wed, 25 Feb 2015 15:58:14 +0000 (12:58 -0300)]
[media] v4l: omap3isp: use vb2_buffer_state enum for vb2 buffer state

use the vb2_buffer_state enum for assigning the state
of the vb2 buffer, along side making isp_pipeline_state
state variable local to the block.
This fixes the following sparse warning as well:
drivers/media/platform/omap3isp/ispvideo.c:497:35: warning: mixing different enum types
drivers/media/platform/omap3isp/ispvideo.c:497:35:     int enum isp_pipeline_state  versus
drivers/media/platform/omap3isp/ispvideo.c:497:35:     int enum vb2_buffer_state

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] v4l: omap3isp: Return buffers back to videobuf2 if pipeline streamon fails
Sakari Ailus [Thu, 18 Sep 2014 21:57:49 +0000 (18:57 -0300)]
[media] v4l: omap3isp: Return buffers back to videobuf2 if pipeline streamon fails

When the video buffer queue was stopped before the stream source was started
in omap3isp_streamon(), the buffers were not returned back to videobuf2.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] v4l: omap3isp: Move starting the sensor from streamon IOCTL handler to VB2 QOP
Sakari Ailus [Thu, 18 Sep 2014 21:57:48 +0000 (18:57 -0300)]
[media] v4l: omap3isp: Move starting the sensor from streamon IOCTL handler to VB2 QOP

Move the starting of the sensor from the VIDIOC_STREAMON handler to the
videobuf2 queue op start_streaming. This avoids failing starting the stream
after vb2_streamon() has already finished.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years ago[media] v4l: omap3isp: Fix module autoloading
Javier Martinez Canillas [Wed, 16 Sep 2015 23:31:38 +0000 (20:31 -0300)]
[media] v4l: omap3isp: Fix module autoloading

Platform drivers needs to export the OF id table and this be built
into the module or udev will not have the necessary information to
autoload the driver module when the device is registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years agoRevert "[media] Postpone the addition of MEDIA_IOC_G_TOPOLOGY"
Mauro Carvalho Chehab [Mon, 25 Jan 2016 09:29:13 +0000 (07:29 -0200)]
Revert "[media] Postpone the addition of MEDIA_IOC_G_TOPOLOGY"

Enable MEDIA_IOC_G_TOPOLOGY ioctl for Kernel 4.6.

This reverts commit be0270ec89e6b9b49de7e533dd1f3a89ad34d205.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
8 years agoMerge tag 'v4.5-rc1' into patchwork
Mauro Carvalho Chehab [Mon, 25 Jan 2016 09:17:10 +0000 (07:17 -0200)]
Merge tag 'v4.5-rc1' into patchwork

Linux 4.5-rc1

* tag 'v4.5-rc1': (11309 commits)
  Linux 4.5-rc1
  ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
  MAINTAINERS: Combine multiple telemetry entries
  intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs
  vmstat: Remove BUG_ON from vmstat_update
  MIPS: zboot: Add support for serial debug using the PROM
  MIPS: zboot: Avoid useless rebuilds
  MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB
  MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function
  MIPS: bcm963xx: Update bcm_tag field image_sequence
  MIPS: bcm963xx: Move extended flash address to bcm_tag header file
  MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure
  MIPS: bcm63xx: nvram: Use nvram structure definition from header file
  MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure
  MAINTAINERS: Add KVM for MIPS entry
  MIPS: KVM: Add missing newline to kvm_err()
  MIPS: Move KVM specific opcodes into asm/inst.h
  MIPS: KVM: Use cacheops.h definitions
  MIPS: Break down cacheops.h definitions
  MIPS: Use EXCCODE_ constants with set_except_vector()
  ...

8 years agoLinux 4.5-rc1
Linus Torvalds [Sun, 24 Jan 2016 21:06:47 +0000 (13:06 -0800)]
Linux 4.5-rc1

8 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Sun, 24 Jan 2016 20:50:56 +0000 (12:50 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:
 "This is the main pull request for MIPS for 4.5 plus some 4.4 fixes.

  The executive summary:

   - ATH79 platform improvments, use DT bindings for the ATH79 USB PHY.
   - Avoid useless rebuilds for zboot.
   - jz4780: Add NEMC, BCH and NAND device tree nodes
   - Initial support for the MicroChip's DT platform.  As all the device
     drivers are missing this is still of limited use.
   - Some Loongson3 cleanups.
   - The unavoidable whitespace polishing.
   - Reduce clock skew when synchronizing the CPU cycle counters on CPU
     startup.
   - Add MIPS R6 fixes.
   - Lots of cleanups across arch/mips as fallout from KVM.
   - Lots of minor fixes and changes for IEEE 754-2008 support to the
     FPU emulator / fp-assist software.
   - Minor Ralink, BCM47xx and bcm963xx platform support improvments.
   - Support SMP on BCM63168"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (84 commits)
  MIPS: zboot: Add support for serial debug using the PROM
  MIPS: zboot: Avoid useless rebuilds
  MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB
  MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function
  MIPS: bcm963xx: Update bcm_tag field image_sequence
  MIPS: bcm963xx: Move extended flash address to bcm_tag header file
  MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure
  MIPS: bcm63xx: nvram: Use nvram structure definition from header file
  MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure
  MAINTAINERS: Add KVM for MIPS entry
  MIPS: KVM: Add missing newline to kvm_err()
  MIPS: Move KVM specific opcodes into asm/inst.h
  MIPS: KVM: Use cacheops.h definitions
  MIPS: Break down cacheops.h definitions
  MIPS: Use EXCCODE_ constants with set_except_vector()
  MIPS: Update trap codes
  MIPS: Move Cause.ExcCode trap codes to mipsregs.h
  MIPS: KVM: Make kvm_mips_{init,exit}() static
  MIPS: KVM: Refactor added offsetof()s
  MIPS: KVM: Convert EXPORT_SYMBOL to _GPL
  ...

8 years agoMerge tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux...
Linus Torvalds [Sun, 24 Jan 2016 20:45:35 +0000 (12:45 -0800)]
Merge tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver updates from Darren Hart:
 "Emergency travel prevented me from completing my final testing on this
  until today.  Nothing here that couldn't wait until RC1 fixes, but I
  thought it best to get it out sooner rather than later as it does
  contain a build warning fix.

  Summary:

  A build warning fix, MAINTAINERS cleanup, and a new DMI quirk:

  ideapad-laptop:
   - Add Lenovo Yoga 700 to no_hw_rfkill dmi list

  MAINTAINERS:
   - Combine multiple telemetry entries

  intel_telemetry_debugfs:
   - Fix unused warnings in telemetry debugfs"

* tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
  MAINTAINERS: Combine multiple telemetry entries
  intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs

8 years agoMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Linus Torvalds [Sun, 24 Jan 2016 20:43:06 +0000 (12:43 -0800)]
Merge branch 'next' of git://git./linux/kernel/git/rzhang/linux

Pull thermal management updates from Zhang Rui:
 "The top merge commit was re-generated yesterday because two topic
  branches were dropped from this pull request in the last minute due to
  some unaddressed comments.  All the other material has been in
  linux-next for quite a while.

  Specifics:

   - Enhance thermal core to handle unexpected device cooling states
     after fresh boot and system resume.  From Zhang Rui and Chen Yu.

   - Several fixes and cleanups on Rockchip and RCAR thermal drivers.
     From Caesar Wang and Kuninori Morimoto.

   - Add Broxton support for Intel processor thermal reporting device
     driver.  From Amy Wiles"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  thermal: trip_point_temp_store() calls thermal_zone_device_update()
  thermal: rcar: rcar_thermal_get_temp() return error if strange temp
  thermal: rcar: check irq possibility in rcar_thermal_irq_xxx()
  thermal: rcar: check every rcar_thermal_update_temp() return value
  thermal: rcar: move rcar_thermal_dt_ids to upside
  thermal: rockchip: Support the RK3399 SoCs in thermal driver
  thermal: rockchip: Support the RK3228 SoCs in thermal driver
  dt-bindings: rockchip-thermal: Support the RK3228/RK3399 SoCs compatible
  thermal: rockchip: fix a trivial typo
  Thermal: Enable Broxton SoC thermal reporting device
  thermal: constify pch_dev_ops structure
  Thermal: do thermal zone update after a cooling device registered
  Thermal: handle thermal zone device properly during system sleep
  Thermal: initialize thermal zone device correctly

8 years agoMerge tag 'for-linus-4.5-merge-window' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 24 Jan 2016 20:39:09 +0000 (12:39 -0800)]
Merge tag 'for-linus-4.5-merge-window' of git://git./linux/kernel/git/ericvh/v9fs

Pull 9p updates from Eric Van Hensbergen:
 "Sorry for the last minute pull request, there's was a change that
  didn't get pulled into for-next until two weeks ago and I wanted to
  give it some bake time.

  Summary:

  Rework and error handling fixes, primarily in the fscatch and fd
  transports"

* tag 'for-linus-4.5-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  fs/9p: use fscache mutex rather than spinlock
  9p: trans_fd, bail out if recv fcall if missing
  9p: trans_fd, read rework to use p9_parse_header
  net/9p: Add device name details on error

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Sun, 24 Jan 2016 20:34:13 +0000 (12:34 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull Ceph updates from Sage Weil:
 "The two main changes are aio support in CephFS, and a series that
  fixes several issues in the authentication key timeout/renewal code.

  On top of that are a variety of cleanups and minor bug fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: remove outdated comment
  libceph: kill off ceph_x_ticket_handler::validity
  libceph: invalidate AUTH in addition to a service ticket
  libceph: fix authorizer invalidation, take 2
  libceph: clear messenger auth_retry flag if we fault
  libceph: fix ceph_msg_revoke()
  libceph: use list_for_each_entry_safe
  ceph: use i_size_{read,write} to get/set i_size
  ceph: re-send AIO write request when getting -EOLDSNAP error
  ceph: Asynchronous IO support
  ceph: Avoid to propagate the invalid page point
  ceph: fix double page_unlock() in page_mkwrite()
  rbd: delete an unnecessary check before rbd_dev_destroy()
  libceph: use list_next_entry instead of list_entry_next
  ceph: ceph_frag_contains_value can be boolean
  ceph: remove unused functions in ceph_frag.h

8 years agoMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sun, 24 Jan 2016 20:31:12 +0000 (12:31 -0800)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull SMB3 fixes from Steve French:
 "A collection of CIFS/SMB3 fixes.

  It includes a couple bug fixes, a few for improved debugging of
  cifs.ko and some improvements to the way cifs does key generation.

  I do have some additional bug fixes I expect in the next week or two
  (to address a problem found by xfstest, and some fixes for SMB3.11
  dialect, and a couple patches that just came in yesterday that I am
  reviewing)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  cifs_dbg() outputs an uninitialized buffer in cifs_readdir()
  cifs: fix race between call_async() and reconnect()
  Prepare for encryption support (first part). Add decryption and encryption key generation. Thanks to Metze for helping with this.
  cifs: Allow using O_DIRECT with cache=loose
  cifs: Make echo interval tunable
  cifs: Check uniqueid for SMB2+ and return -ESTALE if necessary
  Print IP address of unresponsive server
  cifs: Ratelimit kernel log messages

8 years agoideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
Josh Boyer [Sun, 24 Jan 2016 15:46:42 +0000 (10:46 -0500)]
ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list

Like the Yoga 900 models the Lenovo Yoga 700 does not have a
hw rfkill switch, and trying to read the hw rfkill switch through the
ideapad module causes it to always reported blocking breaking wifi.

This commit adds the Lenovo Yoga 700 to the no_hw_rfkill dmi list, fixing
the wifi breakage.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1295272
Tested-by: <dinyar.rabady+spam@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
8 years agoMAINTAINERS: Combine multiple telemetry entries
Souvik Kumar Chakravarty [Thu, 21 Jan 2016 04:00:50 +0000 (09:30 +0530)]
MAINTAINERS: Combine multiple telemetry entries

This patch combines all the telemetry file entries in MAINTAINERS via
wildcard.

Signed-off-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
8 years agointel_telemetry_debugfs: Fix unused warnings in telemetry debugfs
Souvik Kumar Chakravarty [Wed, 20 Jan 2016 06:50:46 +0000 (12:20 +0530)]
intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs

This patch fixes compile time warnings when CONFIG_PM_SLEEP
is undefined. In this case sleep related counters are unused.

Signed-off-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
8 years agovmstat: Remove BUG_ON from vmstat_update
Christoph Lameter [Fri, 22 Jan 2016 16:46:14 +0000 (10:46 -0600)]
vmstat: Remove BUG_ON from vmstat_update

If we detect that there is nothing to do just set the flag and do not
check if it was already set before.  Races really do not matter.  If the
flag is set by any code then the shepherd will start dealing with the
situation and reenable the vmstat workers when necessary again.

Since commit 0eb77e988032 ("vmstat: make vmstat_updater deferrable again
and shut down on idle") quiet_vmstat might update cpu_stat_off and mark
a particular cpu to be handled by vmstat_shepherd.  This might trigger a
VM_BUG_ON in vmstat_update because the work item might have been
sleeping during the idle period and see the cpu_stat_off updated after
the wake up.  The VM_BUG_ON is therefore misleading and no more
appropriate.  Moreover it doesn't really suite any protection from real
bugs because vmstat_shepherd will simply reschedule the vmstat_work
anytime it sees a particular cpu set or vmstat_update would do the same
from the worker context directly.  Even when the two would race the
result wouldn't be incorrect as the counters update is fully idempotent.

Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMerge branch '4.4-fixes' into mips-for-linux-next
Ralf Baechle [Sun, 24 Jan 2016 03:14:40 +0000 (04:14 +0100)]
Merge branch '4.4-fixes' into mips-for-linux-next

8 years agoMIPS: zboot: Add support for serial debug using the PROM
Alban Bedel [Thu, 10 Dec 2015 09:57:21 +0000 (10:57 +0100)]
MIPS: zboot: Add support for serial debug using the PROM

As most platforms implement the PROM serial interface prom_putchar()
add a simple bridge to allow re-using this code for zboot.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11811/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: zboot: Avoid useless rebuilds
Alban Bedel [Thu, 10 Dec 2015 09:57:20 +0000 (10:57 +0100)]
MIPS: zboot: Avoid useless rebuilds

Add dummy.o to the targets list, and fill targets automatically from
$(vmlinuzobjs) to avoid having to maintain two lists.

When building with XZ compression copy ashldi3.c to the build
directory to use a different object file for the kernel and zboot.
Without this the same object file need to be build with different
flags which cause a rebuild at every run.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11810/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB
Florian Fainelli [Wed, 6 Jan 2016 18:51:05 +0000 (10:51 -0800)]
MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB

Allow BMIPS_GENERIC supported platforms to build GPIO controller
drivers.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Dragan Stancevic <dragan.stancevic@gmail.com>
Cc: cernekee@gmail.com
Cc: jaedon.shin@gmail.com
Cc: gregory.0xf0@gmail.com
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12019/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function
Simon Arlott [Sun, 13 Dec 2015 22:50:13 +0000 (22:50 +0000)]
MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function

Remove bcm63xx_nvram_get_psi_size() as it now has no users.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11836/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bcm963xx: Update bcm_tag field image_sequence
Simon Arlott [Sun, 13 Dec 2015 22:48:44 +0000 (22:48 +0000)]
MIPS: bcm963xx: Update bcm_tag field image_sequence

The "dual_image" and "inactive_flag" fields should be merged into a single
"image_sequence" field.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11834/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bcm963xx: Move extended flash address to bcm_tag header file
Simon Arlott [Sun, 13 Dec 2015 22:47:55 +0000 (22:47 +0000)]
MIPS: bcm963xx: Move extended flash address to bcm_tag header file

The extended flash address needs to be subtracted from bcm_tag flash
image offsets. Move this value to the bcm_tag header file.

Renamed define name to consistently use bcm963xx for flash layout
which should be considered a property of the board and not the SoC
(i.e. bcm63xx could theoretically be used on a board without CFE
or any flash).

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11833/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure
Simon Arlott [Sun, 13 Dec 2015 22:46:59 +0000 (22:46 +0000)]
MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure

Move Broadcom BCM963xx image tag data structure to include/linux/
so that drivers outside of mach-bcm63xx can use it.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11832/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bcm63xx: nvram: Use nvram structure definition from header file
Simon Arlott [Sun, 13 Dec 2015 22:46:15 +0000 (22:46 +0000)]
MIPS: bcm63xx: nvram: Use nvram structure definition from header file

Use the common definition of the nvram structure from the header file
include/linux/bcm963xx_nvram.h instead of maintaining a separate copy.

Read the version 5 size of nvram data from memory and then call the
new checksum verification function from the header file.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11831/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure
Simon Arlott [Sun, 13 Dec 2015 22:45:30 +0000 (22:45 +0000)]
MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure

Broadcom BCM963xx boards have multiple nvram variants across different
SoCs with additional checksum fields added whenever the size of the
nvram was extended.

Add this structure as a header file so that multiple drivers can use it.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11830/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Linus Torvalds [Sun, 24 Jan 2016 02:45:06 +0000 (18:45 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/dledford/rdma

Pull rdma updates from Doug Ledford:
 "Initial roundup of 4.5 merge window patches

   - Remove usage of ib_query_device and instead store attributes in
     ib_device struct

   - Move iopoll out of block and into lib, rename to irqpoll, and use
     in several places in the rdma stack as our new completion queue
     polling library mechanism.  Update the other block drivers that
     already used iopoll to use the new mechanism too.

   - Replace the per-entry GID table locks with a single GID table lock

   - IPoIB multicast cleanup

   - Cleanups to the IB MR facility

   - Add support for 64bit extended IB counters

   - Fix for netlink oops while parsing RDMA nl messages

   - RoCEv2 support for the core IB code

   - mlx4 RoCEv2 support

   - mlx5 RoCEv2 support

   - Cross Channel support for mlx5

   - Timestamp support for mlx5

   - Atomic support for mlx5

   - Raw QP support for mlx5

   - MAINTAINERS update for mlx4/mlx5

   - Misc ocrdma, qib, nes, usNIC, cxgb3, cxgb4, mlx4, mlx5 updates

   - Add support for remote invalidate to the iSER driver (pushed
     through the RDMA tree due to dependencies, acknowledged by nab)

   - Update to NFSoRDMA (pushed through the RDMA tree due to
     dependencies, acknowledged by Bruce)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (169 commits)
  IB/mlx5: Unify CQ create flags check
  IB/mlx5: Expose Raw Packet QP to user space consumers
  {IB, net}/mlx5: Move the modify QP operation table to mlx5_ib
  IB/mlx5: Support setting Ethernet priority for Raw Packet QPs
  IB/mlx5: Add Raw Packet QP query functionality
  IB/mlx5: Add create and destroy functionality for Raw Packet QP
  IB/mlx5: Refactor mlx5_ib_qp to accommodate other QP types
  IB/mlx5: Allocate a Transport Domain for each ucontext
  net/mlx5_core: Warn on unsupported events of QP/RQ/SQ
  net/mlx5_core: Add RQ and SQ event handling
  net/mlx5_core: Export transport objects
  IB/mlx5: Expose CQE version to user-space
  IB/mlx5: Add CQE version 1 support to user QPs and SRQs
  IB/mlx5: Fix data validation in mlx5_ib_alloc_ucontext
  IB/sa: Fix netlink local service GFP crash
  IB/srpt: Remove redundant wc array
  IB/qib: Improve ipoib UD performance
  IB/mlx4: Advertise RoCE v2 support
  IB/mlx4: Create and use another QP1 for RoCEv2
  IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers
  ...

8 years agoMAINTAINERS: Add KVM for MIPS entry
James Hogan [Wed, 16 Dec 2015 23:49:41 +0000 (23:49 +0000)]
MAINTAINERS: Add KVM for MIPS entry

I've pretty much been maintaining KVM for MIPS for a while now. Lets
make it more official (and make sure I get Cc'd on relevant patches).

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11898/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: KVM: Add missing newline to kvm_err()
James Hogan [Wed, 16 Dec 2015 23:49:39 +0000 (23:49 +0000)]
MIPS: KVM: Add missing newline to kvm_err()

Add missing newline to end of kvm_err string when guest PMAP couldn't be
allocated.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11896/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Move KVM specific opcodes into asm/inst.h
James Hogan [Wed, 16 Dec 2015 23:49:38 +0000 (23:49 +0000)]
MIPS: Move KVM specific opcodes into asm/inst.h

The header arch/mips/kvm/opcode.h defines a few extra opcodes which
aren't in arch/mips/include/uapi/asm/inst.h. There's nothing KVM
specific about them, so lets move them into inst.h where they belong and
delete the header.

Note that mfmcz_op is renamed to mfmc0_op to match the instruction set
manual, and wait_op was already added to inst.h in commit b0a3eae2b943
("MIPS: inst.h: define COP0 wait op"), merged in v3.16-rc1.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11895/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: KVM: Use cacheops.h definitions
James Hogan [Wed, 16 Dec 2015 23:49:37 +0000 (23:49 +0000)]
MIPS: KVM: Use cacheops.h definitions

Drop the custom cache operation code definitions used by KVM for
emulating guest CACHE instructions, and switch to use the existing
definitions in <asm/cacheops.h>.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11893/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Break down cacheops.h definitions
James Hogan [Wed, 16 Dec 2015 23:49:36 +0000 (23:49 +0000)]
MIPS: Break down cacheops.h definitions

Most of the cache op codes defined in cacheops.h are split into a 2-bit
cache identifier, and a 3-bit cache op code which does largely the same
thing semantically regardless of the cache identifier.

To allow the use of these definitions by KVM for decoding cache ops,
break the definitions down into parts where it makes sense to do so, and
add masks for the Cache and Op field within the cache op.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11892/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Use EXCCODE_ constants with set_except_vector()
James Hogan [Wed, 16 Dec 2015 23:49:35 +0000 (23:49 +0000)]
MIPS: Use EXCCODE_ constants with set_except_vector()

The first argument to set_except_vector is the ExcCode, which we now
have definitions for. Lets make use of them.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11894/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Update trap codes
James Hogan [Wed, 16 Dec 2015 23:49:34 +0000 (23:49 +0000)]
MIPS: Update trap codes

Add a few missing trap codes.

[ralf@linux-mips.org: Drop removal of exception codes.  I don't care what
the incomplete architecture spec says; it can't change existing hardware
and VCEI is supported indeed.]

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11890/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Move Cause.ExcCode trap codes to mipsregs.h
James Hogan [Wed, 16 Dec 2015 23:49:33 +0000 (23:49 +0000)]
MIPS: Move Cause.ExcCode trap codes to mipsregs.h

Move the Cause.ExcCode trap code definitions from kvm_host.h to
mipsregs.h, since they describe architectural bits rather than KVM
specific constants, and change the prefix from T_ to EXCCODE_.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11891/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: KVM: Make kvm_mips_{init,exit}() static
James Hogan [Wed, 16 Dec 2015 23:49:32 +0000 (23:49 +0000)]
MIPS: KVM: Make kvm_mips_{init,exit}() static

The module init and exit functions have no need to be global, so make
them static.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11889/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: KVM: Refactor added offsetof()s
James Hogan [Wed, 16 Dec 2015 23:49:31 +0000 (23:49 +0000)]
MIPS: KVM: Refactor added offsetof()s

When calculating the offsets into the commpage for dynamically
translated mtc0/mfc0 guest instructions, multiple offsetof()s are added
together to find the offset of the specific register in the mips_coproc,
within the commpage.

Simplify each of these cases to a single offsetof() to find the offset
of the specific register within the commpage.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11888/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: KVM: Convert EXPORT_SYMBOL to _GPL
James Hogan [Wed, 16 Dec 2015 23:49:30 +0000 (23:49 +0000)]
MIPS: KVM: Convert EXPORT_SYMBOL to _GPL

Export symbols only to GPL modules to match other KVM symbols in
virt/kvm/ and arch/*/kvm/.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11887/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: KVM: Drop unused kvm_mips_host_tlb_inv_index()
James Hogan [Wed, 16 Dec 2015 23:49:29 +0000 (23:49 +0000)]
MIPS: KVM: Drop unused kvm_mips_host_tlb_inv_index()

The function kvm_mips_host_tlb_inv_index() is unused, so drop it
completely.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11886/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Move definition of DC bit to mipsregs.h
James Hogan [Wed, 16 Dec 2015 23:49:28 +0000 (23:49 +0000)]
MIPS: Move definition of DC bit to mipsregs.h

The CAUSEB_DC and CAUSEF_DC definitions used by KVM are defined in
asm/kvm_host.h, but all the other Cause register field definitions are
found in asm/mipsregs.h.

Lets reunite the DC bit definitions with its friends in mipsregs.h.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11885/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: KVM: Drop some unused definitions from kvm_host.h
James Hogan [Wed, 16 Dec 2015 23:49:27 +0000 (23:49 +0000)]
MIPS: KVM: Drop some unused definitions from kvm_host.h

Some definitions in the MIPS asm/kvm_host.h are completely unused, so
lets drop them.

MS_TO_NS is no longer used since commit e30492bbe95a ("MIPS: KVM:
Rewrite count/compare timer emulation"). The others don't appear ever to
have been used.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11884/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: KVM: Trivial whitespace and style fixes
James Hogan [Wed, 16 Dec 2015 23:49:26 +0000 (23:49 +0000)]
MIPS: KVM: Trivial whitespace and style fixes

A bunch of misc whitespace and style fixes within arch/mips/kvm/.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11883/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: pic32mzda: Add initial PIC32MZDA Starter Kit defconfig
Joshua Henderson [Thu, 14 Jan 2016 01:15:47 +0000 (18:15 -0700)]
MIPS: pic32mzda: Add initial PIC32MZDA Starter Kit defconfig

This adds an initial default config that enables all available PIC32
drivers and is enough for booting a PIC32MZDA Starter Kit.

Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12105/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: dts: Add initial DTS for the PIC32MZDA Starter Kit
Joshua Henderson [Thu, 14 Jan 2016 01:15:46 +0000 (18:15 -0700)]
MIPS: dts: Add initial DTS for the PIC32MZDA Starter Kit

This adds basic DTS configuration for the PIC32MZDA chip and in turn the
PIC32MZDA Starter Kit.

Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12104/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Add support for PIC32MZDA platform
Joshua Henderson [Thu, 14 Jan 2016 01:15:39 +0000 (18:15 -0700)]
MIPS: Add support for PIC32MZDA platform

This adds support for the Microchip PIC32 MIPS microcontroller with the
specific variant PIC32MZDA. PIC32MZDA is based on the MIPS m14KEc core
and boots using device tree.

This includes an early pin setup and early clock setup needed prior to
device tree being initialized. In additon, an interface is provided to
synchronize access to registers shared across several peripherals.

Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12097/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agodt/bindings: Add bindings for PIC32/MZDA platforms
Joshua Henderson [Thu, 14 Jan 2016 01:15:38 +0000 (18:15 -0700)]
dt/bindings: Add bindings for PIC32/MZDA platforms

This adds support for the Microchip PIC32 platform along with the
specific variant PIC32MZDA on a PIC32MZDA Starter Kit.

Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12096/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoIRQCHIP: irq-pic32-evic: Add support for PIC32 interrupt controller
Cristian Birsan [Thu, 14 Jan 2016 01:15:35 +0000 (18:15 -0700)]
IRQCHIP: irq-pic32-evic: Add support for PIC32 interrupt controller

This adds support for the interrupt controller present on PIC32 class
devices. It handles all internal and external interrupts. This controller
exists outside of the CPU core and is the arbitrator of all interrupts
(including interrupts from the CPU itself) before they are presented to
the CPU.

The following features are supported:
 - DT properties for EVIC and for devices/peripherals that use interrupt lines
 - Persistent and non-persistent interrupt handling
 - irqdomain and generic chip support
 - Configuration of external interrupt edge polarity

Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12092/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agodt/bindings: Add bindings for PIC32 interrupt controller
Cristian Birsan [Thu, 14 Jan 2016 01:15:34 +0000 (18:15 -0700)]
dt/bindings: Add bindings for PIC32 interrupt controller

Document the devicetree bindings for the interrupt controller on
Microchip PIC32 class devices.

Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12093/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bmips: Improve BCM6368 device tree
Álvaro Fernández Rojas [Sun, 17 Jan 2016 10:02:35 +0000 (11:02 +0100)]
MIPS: bmips: Improve BCM6368 device tree

Add brcm,bcm6358-leds node to bcm6368.dtsi
Add reboot support (syscon-reboot as defined in BCM6328)

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: f.fainelli@gmail.com
Cc: jogo@openwrt.org
Cc: cernekee@gmail.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Álvaro Fernández Rojas <noltari@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/12117/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: bmips: Improve BCM6328 device tree
Álvaro Fernández Rojas [Sun, 17 Jan 2016 10:02:34 +0000 (11:02 +0100)]
MIPS: bmips: Improve BCM6328 device tree

Adds bcm6328-leds node to bcm6328.dtsi

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: jogo@openwrt.org
Cc: cernekee@gmail.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Álvaro Fernández Rojas <noltari@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/12116/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: ptrace: Drop cp0_tcstatus from regoffset_table[]
James Hogan [Tue, 22 Dec 2015 13:56:39 +0000 (13:56 +0000)]
MIPS: ptrace: Drop cp0_tcstatus from regoffset_table[]

The cp0_tcstatus member of struct pt_regs was removed along with the
rest of SMTC in v3.16, commit b633648c5ad3 ("MIPS: MT: Remove SMTC
support"), however recent uprobes support in v4.3 added back a reference
to it in the regoffset_table[] in ptrace.c. Remove it.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Fixes: 40e084a506eb ("MIPS: Add uprobes support.")
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11920/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: TXx9: iocled: Be sure to clamp return value
Linus Walleij [Tue, 22 Dec 2015 14:41:44 +0000 (15:41 +0100)]
MIPS: TXx9: iocled: Be sure to clamp return value

As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11925/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: RB532: Be sure to clamp return value
Linus Walleij [Tue, 22 Dec 2015 14:41:19 +0000 (15:41 +0100)]
MIPS: RB532: Be sure to clamp return value

As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11924/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: TXx9: Be sure to clamp return value
Linus Walleij [Tue, 22 Dec 2015 14:41:01 +0000 (15:41 +0100)]
MIPS: TXx9: Be sure to clamp return value

As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11923/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: ar7: Be sure to clamp return value
Linus Walleij [Tue, 22 Dec 2015 14:40:27 +0000 (15:40 +0100)]
MIPS: ar7: Be sure to clamp return value

As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11922/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Alchemy: Be sure to clamp return value
Linus Walleij [Tue, 22 Dec 2015 14:40:02 +0000 (15:40 +0100)]
MIPS: Alchemy: Be sure to clamp return value

As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11921/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Fix macro typo
Jaedon Shin [Mon, 21 Dec 2015 03:47:35 +0000 (12:47 +0900)]
MIPS: Fix macro typo

Change the CONFIG_MIPS_CMDLINE_EXTEND to CONFIG_MIPS_CMDLINE_DTB_EXTEND
to resolve the EXTEND_WITH_PROM macro.

Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Fixes: 2024972ef533 ("MIPS: Make the kernel arguments from dtb available")
Reviewed-by: Alexander Sverdlin <alexander.svedlin@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11909/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: smp-cps: Ensure secondary cores start with EVA disabled
Matt Redfearn [Fri, 18 Dec 2015 12:47:00 +0000 (12:47 +0000)]
MIPS: smp-cps: Ensure secondary cores start with EVA disabled

The kernel currently assumes that a core will start up in legacy mode
using the exception base provided through the CM GCR registers. If a
core has been configured in hardware to start in EVA mode, these
assumptions will fail.

This patch ensures that secondary cores are initialized to meet these
assumptions.

Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11907/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: io.h: Define `ioremap_cache'
Maciej W. Rozycki [Sat, 9 Jan 2016 02:05:31 +0000 (02:05 +0000)]
MIPS: io.h: Define `ioremap_cache'

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12040/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: math-emu: dsemul: Reduce `get_isa16_mode' clutter
Maciej W. Rozycki [Fri, 22 Jan 2016 05:21:47 +0000 (05:21 +0000)]
MIPS: math-emu: dsemul: Reduce `get_isa16_mode' clutter

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12178/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: inst.h: Fix some instruction descriptions
Maciej W. Rozycki [Fri, 22 Jan 2016 05:21:34 +0000 (05:21 +0000)]
MIPS: inst.h: Fix some instruction descriptions

Fix the description of the microMIPS NOP16 encoding or MM_NOP16, which
is not equivalent to the MIPS16 NOP instruction.  This is 0x0c00 and
represents the microMIPS `MOVE16 $0, $0' operation, whereas MIPS16 NOP
is encoded as 0x6500, representing `MOVE $0, $16'.

Also fix a typo in `mm_fp0_format' description.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12177/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: math-emu: dsemul: Correct description of the emulation frame
Maciej W. Rozycki [Fri, 22 Jan 2016 05:21:13 +0000 (05:21 +0000)]
MIPS: math-emu: dsemul: Correct description of the emulation frame

Remove irrelevant content from the description of the emulation frame in
`mips_dsemul', referring to bare-metal configurations.  Update the text,
reflecting the change made with commit ba3049ed4086 ("MIPS: Switch FPU
emulator trap to BREAK instruction."), where we switched from using an
address error exception on an unaligned access to the use of a BREAK 514
instruction causing a breakpoint exception instead.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12176/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: math-emu: Correct the emulation of microMIPS ADDIUPC instruction
Maciej W. Rozycki [Fri, 22 Jan 2016 05:21:00 +0000 (05:21 +0000)]
MIPS: math-emu: Correct the emulation of microMIPS ADDIUPC instruction

Emulate the microMIPS ADDIUPC instruction directly in `mips_dsemul'.  If
executed in the emulation frame, this instruction produces an incorrect
result, because the value of the PC there is not the same as where the
instruction originated.

Reshape code so as to handle all microMIPS cases together.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12175/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: math-emu: Make microMIPS branch delay slot emulation work
Maciej W. Rozycki [Fri, 22 Jan 2016 05:20:46 +0000 (05:20 +0000)]
MIPS: math-emu: Make microMIPS branch delay slot emulation work

Complement commit 102cedc32a6e ("MIPS: microMIPS: Floating point
support.") which introduced microMIPS FPU emulation, but did not adjust
the encoding of the BREAK instruction used to terminate the branch delay
slot emulation frame.  Consequently the execution of any such frame is
indeterminate and, depending on CPU configuration, will result in random
code execution or an offending program being terminated with SIGILL.

This is because the regular MIPS BREAK instruction is encoded with the 0
major and the 0xd minor opcode, however in the microMIPS instruction set
this major/minor opcode pair denotes an encoding reserved for the DSP
ASE.  Instead the microMIPS BREAK instruction is encoded with the 0
major and the 0x7 minor opcode.

Use the correct BREAK encoding for microMIPS FPU emulation then.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12174/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: math-emu: dsemul: Fix ill formatting of microMIPS part
Maciej W. Rozycki [Fri, 22 Jan 2016 05:20:37 +0000 (05:20 +0000)]
MIPS: math-emu: dsemul: Fix ill formatting of microMIPS part

Correct formatting breakage introduced with commit 102cedc32a6e ("MIPS:
microMIPS: Floating point support."), so that further changes to this
code can be consistent.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12173/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: math-emu: Correctly handle NOP emulation
Maciej W. Rozycki [Fri, 22 Jan 2016 05:20:26 +0000 (05:20 +0000)]
MIPS: math-emu: Correctly handle NOP emulation

Fix an issue introduced with commit 9ab4471c9f1b ("MIPS: math-emu:
Correct delay-slot exception propagation") where the emulation of a NOP
instruction signals the need to terminate the emulation loop.  This in
turn, if the PC has not changed from the entry to the loop, will cause
the kernel to terminate the program with SIGILL.

Consider this program:

static double div(double d)
{
do
d /= 2.0;
while (d > .5);
return d;
}

int main(int argc, char **argv)
{
return div(argc);
}

which gets compiled to the following binary code:

00400490 <main>:
  400490: 44840000  mtc1 a0,$f0
  400494: 3c020040  lui v0,0x40
  400498: d44207f8  ldc1 $f2,2040(v0)
  40049c: 46800021  cvt.d.w $f0,$f0
  4004a0: 46220002  mul.d $f0,$f0,$f2
  4004a4: 4620103c  c.lt.d $f2,$f0
  4004a8: 4501fffd  bc1t 4004a0 <main+0x10>
  4004ac: 00000000  nop
  4004b0: 4620000d  trunc.w.d $f0,$f0
  4004b4: 03e00008  jr ra
  4004b8: 44020000  mfc1 v0,$f0
  4004bc: 00000000  nop

Where the FPU emulator is used, depending on the number of command-line
arguments this code will either run to completion or terminate with
SIGILL.

If no arguments are specified, then BC1T will not be taken, NOP will not
be emulated and code will complete successfully.

If one argument is specified, then BC1T will be taken once and NOP will
be emulated.  At this point the entry PC value will be 0x400498 and the
new PC value, set by `mips_dsemul' will be 0x4004a0, the target of BC1T.
The emulation loop will terminate, but SIGILL will not be issued,
because the PC has changed.  The FPU emulator will be entered again and
on the second execution BC1T will not be taken, NOP will not be emulated
and code will complete successfully.

If two or more arguments are specified, then the first execution of BC1T
will proceed as above.  Upon reentering the FPU emulator the emulation
loop will continue to BC1T, at which point the branch will be taken and
NOP emulated again.  At this point however the entry PC value will be
0x4004a0, the same as the target of BC1T.  This will make the emulator
conclude that execution has not advanced and therefore an unsupported
FPU instruction has been encountered, and SIGILL will be sent to the
process.

Fix the problem by extending the internal API of `mips_dsemul', making
it return -1 if no delay slot emulation frame has been made, the
instruction has been handled and execution of the emulation loop needs
to continue as if nothing happened.  Remove code from `mips_dsemul' to
reproduce steps made by the emulation loop at the conclusion of each
iteration, as those will be reached normally now.  Adjust call sites
accordingly.  Document the API.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12172/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs
Huacai Chen [Thu, 21 Jan 2016 13:09:52 +0000 (21:09 +0800)]
MIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs

Commit be0c37c985eddc4 (MIPS: Rearrange PTE bits into fixed positions.)
defines fixed PTE bits for MIPS R2. Then, commit d7b631419b3d230a4d383
(MIPS: pgtable-bits: Fix XPA damage to R6 definitions.) adds the MIPS
R6 definitions in the same way as MIPS R2. But some R6 #ifdefs in the
later commit are missing, so in this patch I fix that.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12164/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
8 years agoMIPS: sync-r4k: reduce skew while synchronization
Huacai Chen [Thu, 21 Jan 2016 13:09:51 +0000 (21:09 +0800)]
MIPS: sync-r4k: reduce skew while synchronization

While synchronization, count register will go backwards for the master.
If synchronise_count_master() runs before synchronise_count_slave(),
skew becomes even more. The skew is very harmful for CPU hotplug (CPU0
do synchronization with CPU1, then CPU0 do synchronization with CPU2
and CPU0's count goes backwards, so it will be out of sync with CPU1).

After the commit cf9bfe55f24973a8f40e2 (MIPS: Synchronize MIPS count one
CPU at a time), we needn't evaluate count_reference at the beginning of
synchronise_count_master() any more. Thus, we evaluate the initcount (It
seems like count_reference is redundant) in the 2nd loop. Since we write
the count register in the last loop, we don't need additional barriers
(the existing memory barriers are enough).

Moreover, I think we loop 3 times is enough to get a primed instruction
cache, this can also get less skew than looping 5 times.

Comments are also updated in this patch.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/12163/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>