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Commit d95c3885 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

Merge branches 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/omap',... 

Merge branches 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/omap', 'generic-dma-ops' and 'core' into next
parents 0bcfa628 5cd3f2e9 8dd8f005 9378bfea ceedd5f7 29fcea8c

.mailmap

+2 −0
Original line number Diff line number Diff line
@@ -81,6 +81,7 @@ Greg Kroah-Hartman <greg@echidna.(none)> 
Greg Kroah-Hartman <gregkh@suse.de>

Greg Kroah-Hartman <greg@kroah.com>

Gregory CLEMENT <gregory.clement@bootlin.com> <gregory.clement@free-electrons.com>

Hanjun Guo <guohanjun@huawei.com> <hanjun.guo@linaro.org>

Henk Vergonet <Henk.Vergonet@gmail.com>

Henrik Kretzschmar <henne@nachtwindheim.de>

Henrik Rydberg <rydberg@bitmath.org>
@@ -238,6 +239,7 @@ Vlad Dogaru <ddvlad@gmail.com> <vlad.dogaru@intel.com> 
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@virtuozzo.com>

Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@parallels.com>

Takashi YOSHII <takashi.yoshii.zj@renesas.com>

Will Deacon <will@kernel.org> <will.deacon@arm.com>

Yakir Yang <kuankuan.y@gmail.com> <ykk@rock-chips.com>

Yusuke Goda <goda.yusuke@renesas.com>

Gustavo Padovan <gustavo@las.ic.unicamp.br>

Documentation/ABI/testing/sysfs-bus-siox

+11 −11
Original line number Diff line number Diff line 
What:		/sys/bus/siox/devices/siox-X/active

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		On reading represents the current state of the bus. If it

		contains a "0" the bus is stopped and connected devices are
@@ -12,7 +12,7 @@ Description: 


What:		/sys/bus/siox/devices/siox-X/device_add

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Write-only file. Write
@@ -27,13 +27,13 @@ Description: 


What:		/sys/bus/siox/devices/siox-X/device_remove

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Write-only file. A single write removes the last device in the siox chain.



What:		/sys/bus/siox/devices/siox-X/poll_interval_ns

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Defines the interval between two poll cycles in nano seconds.

		Note this is rounded to jiffies on writing. On reading the current value
@@ -41,33 +41,33 @@ Description: 


What:		/sys/bus/siox/devices/siox-X-Y/connected

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Read-only value. "0" means the Yth device on siox bus X isn't "connected" i.e.

		communication with it is not ensured. "1" signals a working connection.



What:		/sys/bus/siox/devices/siox-X-Y/inbytes

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Read-only value reporting the inbytes value provided to siox-X/device_add



What:		/sys/bus/siox/devices/siox-X-Y/status_errors

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Counts the number of time intervals when the read status byte doesn't yield the

		expected value.



What:		/sys/bus/siox/devices/siox-X-Y/type

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Read-only value reporting the type value provided to siox-X/device_add.



What:		/sys/bus/siox/devices/siox-X-Y/watchdog

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Read-only value reporting if the watchdog of the siox device is

		active. "0" means the watchdog is not active and the device is expected to
@@ -75,13 +75,13 @@ Description: 


What:		/sys/bus/siox/devices/siox-X-Y/watchdog_errors

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Read-only value reporting the number to time intervals when the

		watchdog was active.



What:		/sys/bus/siox/devices/siox-X-Y/outbytes

KernelVersion:	4.16

Contact:	Gavin Schenk <g.schenk@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Contact:	Thorsten Scherer <t.scherer@eckelmann.de>, Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Description:

		Read-only value reporting the outbytes value provided to siox-X/device_add.

Documentation/ABI/testing/sysfs-class-net-qmi

+2 −2
Original line number Diff line number Diff line
@@ -29,7 +29,7 @@ Contact: Bjørn Mork <bjorn@mork.no> 
Description:

		Unsigned integer.



		Write a number ranging from 1 to 127 to add a qmap mux

		Write a number ranging from 1 to 254 to add a qmap mux

		based network device, supported by recent Qualcomm based

		modems.
@@ -46,5 +46,5 @@ Contact: Bjørn Mork <bjorn@mork.no> 
Description:

		Unsigned integer.



		Write a number ranging from 1 to 127 to delete a previously

		Write a number ranging from 1 to 254 to delete a previously

		created qmap mux based network device.

Documentation/arm64/sve.txt

+16 −0
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@@ -56,6 +56,18 @@ model features for SVE is included in Appendix A. 
  is to connect to a target process first and then attempt a

  ptrace(PTRACE_GETREGSET, pid, NT_ARM_SVE, &iov).



* Whenever SVE scalable register values (Zn, Pn, FFR) are exchanged in memory

  between userspace and the kernel, the register value is encoded in memory in

  an endianness-invariant layout, with bits [(8 * i + 7) : (8 * i)] encoded at

  byte offset i from the start of the memory representation.  This affects for

  example the signal frame (struct sve_context) and ptrace interface

  (struct user_sve_header) and associated data.



  Beware that on big-endian systems this results in a different byte order than

  for the FPSIMD V-registers, which are stored as single host-endian 128-bit

  values, with bits [(127 - 8 * i) : (120 - 8 * i)] of the register encoded at

  byte offset i.  (struct fpsimd_context, struct user_fpsimd_state).





2.  Vector length terminology

-----------------------------
@@ -124,6 +136,10 @@ the SVE instruction set architecture. 
  size and layout.  Macros SVE_SIG_* are defined [1] to facilitate access to

  the members.



* Each scalable register (Zn, Pn, FFR) is stored in an endianness-invariant

  layout, with bits [(8 * i + 7) : (8 * i)] stored at byte offset i from the

  start of the register's representation in memory.



* If the SVE context is too big to fit in sigcontext.__reserved[], then extra

  space is allocated on the stack, an extra_context record is written in

  __reserved[] referencing this space.  sve_context is then written in the

Documentation/block/switching-sched.txt

+8 −10
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@@ -13,11 +13,9 @@ you can do so by typing: 


# mount none /sys -t sysfs



As of the Linux 2.6.10 kernel, it is now possible to change the

IO scheduler for a given block device on the fly (thus making it possible,

for instance, to set the CFQ scheduler for the system default, but

set a specific device to use the deadline or noop schedulers - which

can improve that device's throughput).

It is possible to change the IO scheduler for a given block device on

the fly to select one of mq-deadline, none, bfq, or kyber schedulers -

which can improve that device's throughput.



To set a specific scheduler, simply do this:
@@ -30,8 +28,8 @@ The list of defined schedulers can be found by simply doing 
a "cat /sys/block/DEV/queue/scheduler" - the list of valid names

will be displayed, with the currently selected scheduler in brackets:



# cat /sys/block/hda/queue/scheduler

noop deadline [cfq]

# echo deadline > /sys/block/hda/queue/scheduler

# cat /sys/block/hda/queue/scheduler

noop [deadline] cfq
 
# cat /sys/block/sda/queue/scheduler

[mq-deadline] kyber bfq none

# echo none >/sys/block/sda/queue/scheduler

# cat /sys/block/sda/queue/scheduler

[none] mq-deadline kyber bfq