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Merge branch 'linus' into irq/core to pick up dependencies.

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Thomas Gleixner 2018-03-14 20:37:31 +01:00
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4
.gitignore vendored
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@ -127,3 +127,7 @@ all.config
# Kdevelop4
*.kdev4
#Automatically generated by ASN.1 compiler
net/ipv4/netfilter/nf_nat_snmp_basic-asn1.c
net/ipv4/netfilter/nf_nat_snmp_basic-asn1.h

39
Documentation/ABI/testing/sysfs-devices-platform-dock Normal file
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@ -0,0 +1,39 @@
What: /sys/devices/platform/dock.N/docked
Date: Dec, 2006
KernelVersion: 2.6.19
Contact: linux-acpi@vger.kernel.org
Description:
(RO) Value 1 or 0 indicates whether the software believes the
laptop is docked in a docking station.
What: /sys/devices/platform/dock.N/undock
Date: Dec, 2006
KernelVersion: 2.6.19
Contact: linux-acpi@vger.kernel.org
Description:
(WO) Writing to this file causes the software to initiate an
undock request to the firmware.
What: /sys/devices/platform/dock.N/uid
Date: Feb, 2007
KernelVersion: v2.6.21
Contact: linux-acpi@vger.kernel.org
Description:
(RO) Displays the docking station the laptop is docked to.
What: /sys/devices/platform/dock.N/flags
Date: May, 2007
KernelVersion: v2.6.21
Contact: linux-acpi@vger.kernel.org
Description:
(RO) Show dock station flags, useful for checking if undock
request has been made by the user (from the immediate_undock
option).
What: /sys/devices/platform/dock.N/type
Date: Aug, 2008
KernelVersion: v2.6.27
Contact: linux-acpi@vger.kernel.org
Description:
(RO) Display the dock station type- dock_station, ata_bay or
battery_bay.

77
Documentation/ABI/testing/sysfs-devices-system-cpu
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@ -108,6 +108,8 @@ Description: CPU topology files that describe a logical CPU's relationship
What: /sys/devices/system/cpu/cpuidle/current_driver
/sys/devices/system/cpu/cpuidle/current_governer_ro
/sys/devices/system/cpu/cpuidle/available_governors
/sys/devices/system/cpu/cpuidle/current_governor
Date: September 2007
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Discover cpuidle policy and mechanism
@ -119,13 +121,84 @@ Description: Discover cpuidle policy and mechanism
Idle policy (governor) is differentiated from idle mechanism
(driver)
current_driver: displays current idle mechanism
current_driver: (RO) displays current idle mechanism
current_governor_ro: displays current idle policy
current_governor_ro: (RO) displays current idle policy
With the cpuidle_sysfs_switch boot option enabled (meant for
developer testing), the following three attributes are visible
instead:
current_driver: same as described above
available_governors: (RO) displays a space separated list of
available governors
current_governor: (RW) displays current idle policy. Users can
switch the governor at runtime by writing to this file.
See files in Documentation/cpuidle/ for more information.
What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/name
/sys/devices/system/cpu/cpuX/cpuidle/stateN/latency
/sys/devices/system/cpu/cpuX/cpuidle/stateN/power
/sys/devices/system/cpu/cpuX/cpuidle/stateN/time
/sys/devices/system/cpu/cpuX/cpuidle/stateN/usage
Date: September 2007
KernelVersion: v2.6.24
Contact: Linux power management list <linux-pm@vger.kernel.org>
Description:
The directory /sys/devices/system/cpu/cpuX/cpuidle contains per
logical CPU specific cpuidle information for each online cpu X.
The processor idle states which are available for use have the
following attributes:
name: (RO) Name of the idle state (string).
latency: (RO) The latency to exit out of this idle state (in
microseconds).
power: (RO) The power consumed while in this idle state (in
milliwatts).
time: (RO) The total time spent in this idle state (in microseconds).
usage: (RO) Number of times this state was entered (a count).
What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/desc
Date: February 2008
KernelVersion: v2.6.25
Contact: Linux power management list <linux-pm@vger.kernel.org>
Description:
(RO) A small description about the idle state (string).
What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/disable
Date: March 2012
KernelVersion: v3.10
Contact: Linux power management list <linux-pm@vger.kernel.org>
Description:
(RW) Option to disable this idle state (bool). The behavior and
the effect of the disable variable depends on the implementation
of a particular governor. In the ladder governor, for example,
it is not coherent, i.e. if one is disabling a light state, then
all deeper states are disabled as well, but the disable variable
does not reflect it. Likewise, if one enables a deep state but a
lighter state still is disabled, then this has no effect.
What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/residency
Date: March 2014
KernelVersion: v3.15
Contact: Linux power management list <linux-pm@vger.kernel.org>
Description:
(RO) Display the target residency i.e. the minimum amount of
time (in microseconds) this cpu should spend in this idle state
to make the transition worth the effort.
What: /sys/devices/system/cpu/cpu#/cpufreq/*
Date: pre-git history
Contact: linux-pm@vger.kernel.org

40
Documentation/ABI/testing/sysfs-platform-dptf Normal file
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@ -0,0 +1,40 @@
What: /sys/bus/platform/devices/INT3407:00/dptf_power/charger_type
Date: Jul, 2016
KernelVersion: v4.10
Contact: linux-acpi@vger.kernel.org
Description:
(RO) The charger type - Traditional, Hybrid or NVDC.
What: /sys/bus/platform/devices/INT3407:00/dptf_power/adapter_rating_mw
Date: Jul, 2016
KernelVersion: v4.10
Contact: linux-acpi@vger.kernel.org
Description:
(RO) Adapter rating in milliwatts (the maximum Adapter power).
Must be 0 if no AC Adaptor is plugged in.
What: /sys/bus/platform/devices/INT3407:00/dptf_power/max_platform_power_mw
Date: Jul, 2016
KernelVersion: v4.10
Contact: linux-acpi@vger.kernel.org
Description:
(RO) Maximum platform power that can be supported by the battery
in milliwatts.
What: /sys/bus/platform/devices/INT3407:00/dptf_power/platform_power_source
Date: Jul, 2016
KernelVersion: v4.10
Contact: linux-acpi@vger.kernel.org
Description:
(RO) Display the platform power source
0x00 = DC
0x01 = AC
0x02 = USB
0x03 = Wireless Charger
What: /sys/bus/platform/devices/INT3407:00/dptf_power/battery_steady_power
Date: Jul, 2016
KernelVersion: v4.10
Contact: linux-acpi@vger.kernel.org
Description:
(RO) The maximum sustained power for battery in milliwatts.

4
Documentation/PCI/pci.txt
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@ -570,7 +570,9 @@ your driver if they're helpful, or just use plain hex constants.
The device IDs are arbitrary hex numbers (vendor controlled) and normally used
only in a single location, the pci_device_id table.
Please DO submit new vendor/device IDs to http://pciids.sourceforge.net/.
Please DO submit new vendor/device IDs to http://pci-ids.ucw.cz/.
There are mirrors of the pci.ids file at http://pciids.sourceforge.net/
and https://github.com/pciutils/pciids.

5
Documentation/accelerators/ocxl.rst
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@ -152,6 +152,11 @@ OCXL_IOCTL_IRQ_SET_FD:
Associate an event fd to an AFU interrupt so that the user process
can be notified when the AFU sends an interrupt.
OCXL_IOCTL_GET_METADATA:
Obtains configuration information from the card, such at the size of
MMIO areas, the AFU version, and the PASID for the current context.
mmap
----

7
Documentation/atomic_bitops.txt
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@ -58,7 +58,12 @@ Like with atomic_t, the rule of thumb is:
- RMW operations that have a return value are fully ordered.
Except for test_and_set_bit_lock() which has ACQUIRE semantics and
- RMW operations that are conditional are unordered on FAILURE,
otherwise the above rules apply. In the case of test_and_{}_bit() operations,
if the bit in memory is unchanged by the operation then it is deemed to have
failed.
Except for a successful test_and_set_bit_lock() which has ACQUIRE semantics and
clear_bit_unlock() which has RELEASE semantics.
Since a platform only has a single means of achieving atomic operations

0
Documentation/devicetree/bindings/misc/arm-charlcd.txt → Documentation/devicetree/bindings/auxdisplay/arm-charlcd.txt
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6
Documentation/devicetree/bindings/dma/mv-xor-v2.txt
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@ -11,7 +11,11 @@ Required properties:
interrupts.
Optional properties:
- clocks: Optional reference to the clock used by the XOR engine.
- clocks: Optional reference to the clocks used by the XOR engine.
- clock-names: mandatory if there is a second clock, in this case the
name must be "core" for the first clock and "reg" for the second
one
Example:

2
Documentation/devicetree/bindings/eeprom/at24.txt
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@ -38,9 +38,9 @@ Required properties:
"catalyst",
"microchip",
"nxp",
"ramtron",
"renesas",
"nxp",
"st",
Some vendors use different model names for chips which are just

1
Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
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@ -14,6 +14,7 @@ Required properties:
- "renesas,irqc-r8a7794" (R-Car E2)
- "renesas,intc-ex-r8a7795" (R-Car H3)
- "renesas,intc-ex-r8a7796" (R-Car M3-W)
- "renesas,intc-ex-r8a77965" (R-Car M3-N)
- "renesas,intc-ex-r8a77970" (R-Car V3M)
- "renesas,intc-ex-r8a77995" (R-Car D3)
- #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in

1
Documentation/devicetree/bindings/net/renesas,ravb.txt
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@ -18,6 +18,7 @@ Required properties:
- "renesas,etheravb-r8a7795" for the R8A7795 SoC.
- "renesas,etheravb-r8a7796" for the R8A7796 SoC.
- "renesas,etheravb-r8a77970" for the R8A77970 SoC.
- "renesas,etheravb-r8a77980" for the R8A77980 SoC.
- "renesas,etheravb-r8a77995" for the R8A77995 SoC.
- "renesas,etheravb-rcar-gen3" as a fallback for the above
R-Car Gen3 devices.

8
Documentation/devicetree/bindings/power/mti,mips-cpc.txt Normal file
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@ -0,0 +1,8 @@
Binding for MIPS Cluster Power Controller (CPC).
This binding allows a system to specify where the CPC registers are
located.
Required properties:
compatible : Should be "mti,mips-cpc".
regs: Should describe the address & size of the CPC register region.

2
Documentation/devicetree/bindings/power/wakeup-source.txt
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@ -60,7 +60,7 @@ Examples
#size-cells = <0>;
button@1 {
debounce_interval = <50>;
debounce-interval = <50>;
wakeup-source;
linux,code = <116>;
label = "POWER";

25
Documentation/devicetree/bindings/thermal/imx-thermal.txt
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@ -22,7 +22,32 @@ Optional properties:
- clocks : thermal sensor's clock source.
Example:
ocotp: ocotp@21bc000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,imx6sx-ocotp", "syscon";
reg = <0x021bc000 0x4000>;
clocks = <&clks IMX6SX_CLK_OCOTP>;
tempmon_calib: calib@38 {
reg = <0x38 4>;
};
tempmon_temp_grade: temp-grade@20 {
reg = <0x20 4>;
};
};
tempmon: tempmon {
compatible = "fsl,imx6sx-tempmon", "fsl,imx6q-tempmon";
interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
fsl,tempmon = <&anatop>;
nvmem-cells = <&tempmon_calib>, <&tempmon_temp_grade>;
nvmem-cell-names = "calib", "temp_grade";
clocks = <&clks IMX6SX_CLK_PLL3_USB_OTG>;
};
Legacy method (Deprecated):
tempmon {
compatible = "fsl,imx6q-tempmon";
fsl,tempmon = <&anatop>;

62
Documentation/features/sched/membarrier-sync-core/arch-support.txt Normal file
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@ -0,0 +1,62 @@
#
# Feature name: membarrier-sync-core
# Kconfig: ARCH_HAS_MEMBARRIER_SYNC_CORE
# description: arch supports core serializing membarrier
#
# Architecture requirements
#
# * arm64
#
# Rely on eret context synchronization when returning from IPI handler, and
# when returning to user-space.
#
# * x86
#
# x86-32 uses IRET as return from interrupt, which takes care of the IPI.
# However, it uses both IRET and SYSEXIT to go back to user-space. The IRET
# instruction is core serializing, but not SYSEXIT.
#
# x86-64 uses IRET as return from interrupt, which takes care of the IPI.
# However, it can return to user-space through either SYSRETL (compat code),
# SYSRETQ, or IRET.
#
# Given that neither SYSRET{L,Q}, nor SYSEXIT, are core serializing, we rely
# instead on write_cr3() performed by switch_mm() to provide core serialization
# after changing the current mm, and deal with the special case of kthread ->
# uthread (temporarily keeping current mm into active_mm) by issuing a
# sync_core_before_usermode() in that specific case.
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------

2
Documentation/gpu/tve200.rst
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@ -3,4 +3,4 @@
==================================
.. kernel-doc:: drivers/gpu/drm/tve200/tve200_drv.c
:doc: Faraday TV Encoder 200
:doc: Faraday TV Encoder TVE200 DRM Driver

2
Documentation/i2c/busses/i2c-i801
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@ -28,8 +28,10 @@ Supported adapters:
* Intel Wildcat Point (PCH)
* Intel Wildcat Point-LP (PCH)
* Intel BayTrail (SOC)
* Intel Braswell (SOC)
* Intel Sunrise Point-H (PCH)
* Intel Sunrise Point-LP (PCH)
* Intel Kaby Lake-H (PCH)
* Intel DNV (SOC)
* Intel Broxton (SOC)
* Intel Lewisburg (PCH)

2
Documentation/ia64/serial.txt
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@ -111,7 +111,7 @@ TROUBLESHOOTING SERIAL CONSOLE PROBLEMS
- If you don't have an HCDP, the kernel doesn't know where
your console lives until the driver discovers serial
devices. Use "console=uart, io,0x3f8" (or appropriate
devices. Use "console=uart,io,0x3f8" (or appropriate
address for your machine).
Kernel and init script output works fine, but no "login:" prompt:

49
Documentation/locking/mutex-design.txt
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@ -21,37 +21,23 @@ Implementation
--------------
Mutexes are represented by 'struct mutex', defined in include/linux/mutex.h
and implemented in kernel/locking/mutex.c. These locks use a three
state atomic counter (->count) to represent the different possible
transitions that can occur during the lifetime of a lock:
1: unlocked
0: locked, no waiters
negative: locked, with potential waiters
In its most basic form it also includes a wait-queue and a spinlock
that serializes access to it. CONFIG_SMP systems can also include
a pointer to the lock task owner (->owner) as well as a spinner MCS
lock (->osq), both described below in (ii).
and implemented in kernel/locking/mutex.c. These locks use an atomic variable
(->owner) to keep track of the lock state during its lifetime. Field owner
actually contains 'struct task_struct *' to the current lock owner and it is
therefore NULL if not currently owned. Since task_struct pointers are aligned
at at least L1_CACHE_BYTES, low bits (3) are used to store extra state (e.g.,
if waiter list is non-empty). In its most basic form it also includes a
wait-queue and a spinlock that serializes access to it. Furthermore,
CONFIG_MUTEX_SPIN_ON_OWNER=y systems use a spinner MCS lock (->osq), described
below in (ii).
When acquiring a mutex, there are three possible paths that can be
taken, depending on the state of the lock:
(i) fastpath: tries to atomically acquire the lock by decrementing the
counter. If it was already taken by another task it goes to the next
possible path. This logic is architecture specific. On x86-64, the
locking fastpath is 2 instructions:
0000000000000e10 <mutex_lock>:
e21: f0 ff 0b lock decl (%rbx)
e24: 79 08 jns e2e <mutex_lock+0x1e>
the unlocking fastpath is equally tight:
0000000000000bc0 <mutex_unlock>:
bc8: f0 ff 07 lock incl (%rdi)
bcb: 7f 0a jg bd7 <mutex_unlock+0x17>
(i) fastpath: tries to atomically acquire the lock by cmpxchg()ing the owner with
the current task. This only works in the uncontended case (cmpxchg() checks
against 0UL, so all 3 state bits above have to be 0). If the lock is
contended it goes to the next possible path.
(ii) midpath: aka optimistic spinning, tries to spin for acquisition
while the lock owner is running and there are no other tasks ready
@ -143,11 +129,10 @@ Test if the mutex is taken:
Disadvantages
-------------
Unlike its original design and purpose, 'struct mutex' is larger than
most locks in the kernel. E.g: on x86-64 it is 40 bytes, almost twice
as large as 'struct semaphore' (24 bytes) and tied, along with rwsems,
for the largest lock in the kernel. Larger structure sizes mean more
CPU cache and memory footprint.
Unlike its original design and purpose, 'struct mutex' is among the largest
locks in the kernel. E.g: on x86-64 it is 32 bytes, where 'struct semaphore'
is 24 bytes and rw_semaphore is 40 bytes. Larger structure sizes mean more CPU
cache and memory footprint.
When to use mutexes
-------------------

14
Documentation/media/dmx.h.rst.exceptions
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@ -50,9 +50,15 @@ replace typedef dmx_filter_t :c:type:`dmx_filter`
replace typedef dmx_pes_type_t :c:type:`dmx_pes_type`
replace typedef dmx_input_t :c:type:`dmx_input`
ignore symbol DMX_OUT_DECODER
ignore symbol DMX_OUT_TAP
ignore symbol DMX_OUT_TS_TAP
ignore symbol DMX_OUT_TSDEMUX_TAP
replace symbol DMX_BUFFER_FLAG_HAD_CRC32_DISCARD :c:type:`dmx_buffer_flags`
replace symbol DMX_BUFFER_FLAG_TEI :c:type:`dmx_buffer_flags`
replace symbol DMX_BUFFER_PKT_COUNTER_MISMATCH :c:type:`dmx_buffer_flags`
replace symbol DMX_BUFFER_FLAG_DISCONTINUITY_DETECTED :c:type:`dmx_buffer_flags`
replace symbol DMX_BUFFER_FLAG_DISCONTINUITY_INDICATOR :c:type:`dmx_buffer_flags`
replace symbol DMX_OUT_DECODER :c:type:`dmx_output`
replace symbol DMX_OUT_TAP :c:type:`dmx_output`
replace symbol DMX_OUT_TS_TAP :c:type:`dmx_output`
replace symbol DMX_OUT_TSDEMUX_TAP :c:type:`dmx_output`
replace ioctl DMX_DQBUF dmx_qbuf

7
Documentation/media/uapi/dvb/dmx-qbuf.rst
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@ -51,9 +51,10 @@ out to disk. Buffers remain locked until dequeued, until the
the device is closed.
Applications call the ``DMX_DQBUF`` ioctl to dequeue a filled
(capturing) buffer from the driver's outgoing queue. They just set the ``reserved`` field array to zero. When ``DMX_DQBUF`` is called with a
pointer to this structure, the driver fills the remaining fields or
returns an error code.
(capturing) buffer from the driver's outgoing queue.
They just set the ``index`` field withe the buffer ID to be queued.
When ``DMX_DQBUF`` is called with a pointer to struct :c:type:`dmx_buffer`,
the driver fills the remaining fields or returns an error code.
By default ``DMX_DQBUF`` blocks when no buffer is in the outgoing
queue. When the ``O_NONBLOCK`` flag was given to the

38
Documentation/networking/segmentation-offloads.txt
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@ -13,6 +13,7 @@ The following technologies are described:
* Generic Segmentation Offload - GSO
* Generic Receive Offload - GRO
* Partial Generic Segmentation Offload - GSO_PARTIAL
* SCTP accelleration with GSO - GSO_BY_FRAGS
TCP Segmentation Offload
========================
@ -49,6 +50,10 @@ datagram into multiple IPv4 fragments. Many of the requirements for UDP
fragmentation offload are the same as TSO. However the IPv4 ID for
fragments should not increment as a single IPv4 datagram is fragmented.
UFO is deprecated: modern kernels will no longer generate UFO skbs, but can
still receive them from tuntap and similar devices. Offload of UDP-based
tunnel protocols is still supported.
IPIP, SIT, GRE, UDP Tunnel, and Remote Checksum Offloads
========================================================
@ -83,10 +88,10 @@ SKB_GSO_UDP_TUNNEL_CSUM. These two additional tunnel types reflect the
fact that the outer header also requests to have a non-zero checksum
included in the outer header.
Finally there is SKB_GSO_REMCSUM which indicates that a given tunnel header
has requested a remote checksum offload. In this case the inner headers
will be left with a partial checksum and only the outer header checksum
will be computed.
Finally there is SKB_GSO_TUNNEL_REMCSUM which indicates that a given tunnel
header has requested a remote checksum offload. In this case the inner
headers will be left with a partial checksum and only the outer header
checksum will be computed.
Generic Segmentation Offload
============================
@ -128,3 +133,28 @@ values for if the header was simply duplicated. The one exception to this
is the outer IPv4 ID field. It is up to the device drivers to guarantee
that the IPv4 ID field is incremented in the case that a given header does
not have the DF bit set.
SCTP accelleration with GSO
===========================
SCTP - despite the lack of hardware support - can still take advantage of
GSO to pass one large packet through the network stack, rather than
multiple small packets.
This requires a different approach to other offloads, as SCTP packets
cannot be just segmented to (P)MTU. Rather, the chunks must be contained in
IP segments, padding respected. So unlike regular GSO, SCTP can't just
generate a big skb, set gso_size to the fragmentation point and deliver it
to IP layer.
Instead, the SCTP protocol layer builds an skb with the segments correctly
padded and stored as chained skbs, and skb_segment() splits based on those.
To signal this, gso_size is set to the special value GSO_BY_FRAGS.
Therefore, any code in the core networking stack must be aware of the
possibility that gso_size will be GSO_BY_FRAGS and handle that case
appropriately. (For size checks, the skb_gso_validate_*_len family of
helpers do this automatically.)
This also affects drivers with the NETIF_F_FRAGLIST & NETIF_F_GSO_SCTP bits
set. Note also that NETIF_F_GSO_SCTP is included in NETIF_F_GSO_SOFTWARE.

3
Documentation/sphinx/kerneldoc.py
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@ -36,8 +36,7 @@ import glob
from docutils import nodes, statemachine
from docutils.statemachine import ViewList
from docutils.parsers.rst import directives
from sphinx.util.compat import Directive
from docutils.parsers.rst import directives, Directive
from sphinx.ext.autodoc import AutodocReporter
__version__ = '1.0'

40
Documentation/virtual/kvm/api.txt
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@ -123,14 +123,15 @@ memory layout to fit in user mode), check KVM_CAP_MIPS_VZ and use the
flag KVM_VM_MIPS_VZ.
4.3 KVM_GET_MSR_INDEX_LIST
4.3 KVM_GET_MSR_INDEX_LIST, KVM_GET_MSR_FEATURE_INDEX_LIST
Capability: basic
Capability: basic, KVM_CAP_GET_MSR_FEATURES for KVM_GET_MSR_FEATURE_INDEX_LIST
Architectures: x86
Type: system
Type: system ioctl
Parameters: struct kvm_msr_list (in/out)
Returns: 0 on success; -1 on error
Errors:
EFAULT: the msr index list cannot be read from or written to
E2BIG: the msr index list is to be to fit in the array specified by
the user.
@ -139,16 +140,23 @@ struct kvm_msr_list {
__u32 indices[0];
};
This ioctl returns the guest msrs that are supported. The list varies
by kvm version and host processor, but does not change otherwise. The
user fills in the size of the indices array in nmsrs, and in return
kvm adjusts nmsrs to reflect the actual number of msrs and fills in
the indices array with their numbers.
The user fills in the size of the indices array in nmsrs, and in return
kvm adjusts nmsrs to reflect the actual number of msrs and fills in the
indices array with their numbers.
KVM_GET_MSR_INDEX_LIST returns the guest msrs that are supported. The list
varies by kvm version and host processor, but does not change otherwise.
Note: if kvm indicates supports MCE (KVM_CAP_MCE), then the MCE bank MSRs are
not returned in the MSR list, as different vcpus can have a different number
of banks, as set via the KVM_X86_SETUP_MCE ioctl.
KVM_GET_MSR_FEATURE_INDEX_LIST returns the list of MSRs that can be passed
to the KVM_GET_MSRS system ioctl. This lets userspace probe host capabilities
and processor features that are exposed via MSRs (e.g., VMX capabilities).
This list also varies by kvm version and host processor, but does not change
otherwise.
4.4 KVM_CHECK_EXTENSION
@ -475,14 +483,22 @@ Support for this has been removed. Use KVM_SET_GUEST_DEBUG instead.
4.18 KVM_GET_MSRS
Capability: basic
Capability: basic (vcpu), KVM_CAP_GET_MSR_FEATURES (system)
Architectures: x86
Type: vcpu ioctl
Type: system ioctl, vcpu ioctl
Parameters: struct kvm_msrs (in/out)
Returns: 0 on success, -1 on error
Returns: number of msrs successfully returned;
-1 on error
When used as a system ioctl:
Reads the values of MSR-based features that are available for the VM. This
is similar to KVM_GET_SUPPORTED_CPUID, but it returns MSR indices and values.
The list of msr-based features can be obtained using KVM_GET_MSR_FEATURE_INDEX_LIST
in a system ioctl.
When used as a vcpu ioctl:
Reads model-specific registers from the vcpu. Supported msr indices can
be obtained using KVM_GET_MSR_INDEX_LIST.
be obtained using KVM_GET_MSR_INDEX_LIST in a system ioctl.
struct kvm_msrs {
__u32 nmsrs; /* number of msrs in entries */

4
Documentation/virtual/kvm/cpuid.txt
View File

@ -58,6 +58,10 @@ KVM_FEATURE_PV_TLB_FLUSH || 9 || guest checks this feature bit
|| || before enabling paravirtualized
|| || tlb flush.
------------------------------------------------------------------------------
KVM_FEATURE_ASYNC_PF_VMEXIT || 10 || paravirtualized async PF VM exit
|| || can be enabled by setting bit 2
|| || when writing to msr 0x4b564d02
------------------------------------------------------------------------------
KVM_FEATURE_CLOCKSOURCE_STABLE_BIT || 24 || host will warn if no guest-side
|| || per-cpu warps are expected in
|| || kvmclock.

3
Documentation/virtual/kvm/msr.txt
View File

@ -170,7 +170,8 @@ MSR_KVM_ASYNC_PF_EN: 0x4b564d02
when asynchronous page faults are enabled on the vcpu 0 when
disabled. Bit 1 is 1 if asynchronous page faults can be injected
when vcpu is in cpl == 0. Bit 2 is 1 if asynchronous page faults
are delivered to L1 as #PF vmexits.
are delivered to L1 as #PF vmexits. Bit 2 can be set only if
KVM_FEATURE_ASYNC_PF_VMEXIT is present in CPUID.
First 4 byte of 64 byte memory location will be written to by
the hypervisor at the time of asynchronous page fault (APF)

2
Documentation/x86/intel_rdt_ui.txt
View File

@ -671,7 +671,7 @@ occupancy of the real time threads on these cores.
# mkdir p1
Move the cpus 4-7 over to p1
# echo f0 > p0/cpus
# echo f0 > p1/cpus
View the llc occupancy snapshot

2
Documentation/x86/topology.txt
View File

@ -108,7 +108,7 @@ The topology of a system is described in the units of:
The number of online threads is also printed in /proc/cpuinfo "siblings."
- topology_sibling_mask():
- topology_sibling_cpumask():
The cpumask contains all online threads in the core to which a thread
belongs.

28
MAINTAINERS
View File

@ -1238,7 +1238,7 @@ F: drivers/clk/at91
ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
M: Nicolas Ferre <nicolas.ferre@microchip.com>
M: Alexandre Belloni <alexandre.belloni@free-electrons.com>
M: Alexandre Belloni <alexandre.belloni@bootlin.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.linux4sam.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91.git
@ -1590,7 +1590,7 @@ ARM/Marvell Dove/MV78xx0/Orion SOC support
M: Jason Cooper <jason@lakedaemon.net>
M: Andrew Lunn <andrew@lunn.ch>
M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
M: Gregory Clement <gregory.clement@free-electrons.com>
M: Gregory Clement <gregory.clement@bootlin.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: Documentation/devicetree/bindings/soc/dove/
@ -1604,7 +1604,7 @@ F: arch/arm/boot/dts/orion5x*
ARM/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K SOC support
M: Jason Cooper <jason@lakedaemon.net>
M: Andrew Lunn <andrew@lunn.ch>
M: Gregory Clement <gregory.clement@free-electrons.com>
M: Gregory Clement <gregory.clement@bootlin.com>
M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
@ -1999,8 +1999,10 @@ M: Maxime Coquelin <mcoquelin.stm32@gmail.com>
M: Alexandre Torgue <alexandre.torgue@st.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/stm32.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git stm32-next
N: stm32
F: arch/arm/boot/dts/stm32*
F: arch/arm/mach-stm32/
F: drivers/clocksource/armv7m_systick.c
ARM/TANGO ARCHITECTURE
@ -7600,8 +7602,10 @@ F: mm/kasan/
F: scripts/Makefile.kasan
KCONFIG
M: Masahiro Yamada <yamada.masahiro@socionext.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git kconfig
L: linux-kbuild@vger.kernel.org
S: Orphan
S: Maintained
F: Documentation/kbuild/kconfig-language.txt
F: scripts/kconfig/
@ -7909,7 +7913,6 @@ S: Maintained
F: scripts/leaking_addresses.pl
LED SUBSYSTEM
M: Richard Purdie <rpurdie@rpsys.net>
M: Jacek Anaszewski <jacek.anaszewski@gmail.com>
M: Pavel Machek <pavel@ucw.cz>
L: linux-leds@vger.kernel.org
@ -9206,6 +9209,7 @@ MIPS GENERIC PLATFORM
M: Paul Burton <paul.burton@mips.com>
L: linux-mips@linux-mips.org
S: Supported
F: Documentation/devicetree/bindings/power/mti,mips-cpc.txt
F: arch/mips/generic/
F: arch/mips/tools/generic-board-config.sh
@ -9945,6 +9949,7 @@ F: drivers/nfc/nxp-nci
OBJTOOL
M: Josh Poimboeuf <jpoimboe@redhat.com>
M: Peter Zijlstra <peterz@infradead.org>
S: Supported
F: tools/objtool/
@ -10925,6 +10930,17 @@ L: linux-gpio@vger.kernel.org
S: Supported
F: drivers/pinctrl/pinctrl-at91-pio4.*
PIN CONTROLLER - FREESCALE
M: Dong Aisheng <aisheng.dong@nxp.com>
M: Fabio Estevam <festevam@gmail.com>
M: Shawn Guo <shawnguo@kernel.org>
M: Stefan Agner <stefan@agner.ch>
R: Pengutronix Kernel Team <kernel@pengutronix.de>
L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/pinctrl/freescale/
F: Documentation/devicetree/bindings/pinctrl/fsl,*
PIN CONTROLLER - INTEL
M: Mika Westerberg <mika.westerberg@linux.intel.com>
M: Heikki Krogerus <heikki.krogerus@linux.intel.com>

19
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 4
PATCHLEVEL = 16
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc5
NAME = Fearless Coyote
# *DOCUMENTATION*
@ -388,7 +388,7 @@ PYTHON = python
CHECK = sparse
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
-Wbitwise -Wno-return-void $(CF)
-Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
NOSTDINC_FLAGS =
CFLAGS_MODULE =
AFLAGS_MODULE =
@ -489,6 +489,11 @@ KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
endif
RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern -mindirect-branch-register
RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk
RETPOLINE_CFLAGS := $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG)))
export RETPOLINE_CFLAGS
ifeq ($(config-targets),1)
# ===========================================================================
# *config targets only - make sure prerequisites are updated, and descend
@ -579,10 +584,9 @@ ifeq ($(KBUILD_EXTMOD),)
# To avoid any implicit rule to kick in, define an empty command
$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
# If .config is newer than include/config/auto.conf, someone tinkered
# with it and forgot to run make oldconfig.
# if auto.conf.cmd is missing then we are probably in a cleaned tree so
# we execute the config step to be sure to catch updated Kconfig files
# The actual configuration files used during the build are stored in
# include/generated/ and include/config/. Update them if .config is newer than
# include/config/auto.conf (which mirrors .config).
include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
else
@ -857,8 +861,7 @@ KBUILD_AFLAGS += $(ARCH_AFLAGS) $(KAFLAGS)
KBUILD_CFLAGS += $(ARCH_CFLAGS) $(KCFLAGS)
# Use --build-id when available.
LDFLAGS_BUILD_ID := $(patsubst -Wl$(comma)%,%,\
$(call cc-ldoption, -Wl$(comma)--build-id,))
LDFLAGS_BUILD_ID := $(call ld-option, --build-id)
KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

6
arch/alpha/include/asm/cmpxchg.h
View File

@ -6,7 +6,6 @@
* Atomic exchange routines.
*/
#define __ASM__MB
#define ____xchg(type, args...) __xchg ## type ## _local(args)
#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args)
#include <asm/xchg.h>
@ -33,10 +32,6 @@
cmpxchg_local((ptr), (o), (n)); \
})
#ifdef CONFIG_SMP
#undef __ASM__MB
#define __ASM__MB "\tmb\n"
#endif
#undef ____xchg
#undef ____cmpxchg
#define ____xchg(type, args...) __xchg ##type(args)
@ -64,7 +59,6 @@
cmpxchg((ptr), (o), (n)); \
})
#undef __ASM__MB
#undef ____cmpxchg
#endif /* _ALPHA_CMPXCHG_H */

38
arch/alpha/include/asm/xchg.h
View File

@ -12,6 +12,10 @@
* Atomic exchange.
* Since it can be used to implement critical sections
* it must clobber "memory" (also for interrupts in UP).
*
* The leading and the trailing memory barriers guarantee that these
* operations are fully ordered.
*
*/
static inline unsigned long
@ -19,6 +23,7 @@ ____xchg(_u8, volatile char *m, unsigned long val)
{
unsigned long ret, tmp, addr64;
smp_mb();
__asm__ __volatile__(
" andnot %4,7,%3\n"
" insbl %1,%4,%1\n"
@ -28,12 +33,12 @@ ____xchg(_u8, volatile char *m, unsigned long val)
" or %1,%2,%2\n"
" stq_c %2,0(%3)\n"
" beq %2,2f\n"
__ASM__MB
".subsection 2\n"
"2: br 1b\n"
".previous"
: "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
: "r" ((long)m), "1" (val) : "memory");
smp_mb();
return ret;
}
@ -43,6 +48,7 @@ ____xchg(_u16, volatile short *m, unsigned long val)
{
unsigned long ret, tmp, addr64;
smp_mb();
__asm__ __volatile__(
" andnot %4,7,%3\n"
" inswl %1,%4,%1\n"
@ -52,12 +58,12 @@ ____xchg(_u16, volatile short *m, unsigned long val)
" or %1,%2,%2\n"
" stq_c %2,0(%3)\n"
" beq %2,2f\n"
__ASM__MB
".subsection 2\n"
"2: br 1b\n"
".previous"
: "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
: "r" ((long)m), "1" (val) : "memory");
smp_mb();
return ret;
}
@ -67,17 +73,18 @@ ____xchg(_u32, volatile int *m, unsigned long val)
{
unsigned long dummy;
smp_mb();
__asm__ __volatile__(
"1: ldl_l %0,%4\n"
" bis $31,%3,%1\n"
" stl_c %1,%2\n"
" beq %1,2f\n"
__ASM__MB
".subsection 2\n"
"2: br 1b\n"
".previous"
: "=&r" (val), "=&r" (dummy), "=m" (*m)
: "rI" (val), "m" (*m) : "memory");
smp_mb();
return val;
}
@ -87,17 +94,18 @@ ____xchg(_u64, volatile long *m, unsigned long val)
{
unsigned long dummy;
smp_mb();
__asm__ __volatile__(
"1: ldq_l %0,%4\n"
" bis $31,%3,%1\n"
" stq_c %1,%2\n"
" beq %1,2f\n"
__ASM__MB
".subsection 2\n"
"2: br 1b\n"
".previous"
: "=&r" (val), "=&r" (dummy), "=m" (*m)
: "rI" (val), "m" (*m) : "memory");
smp_mb();
return val;
}
@ -128,10 +136,12 @@ ____xchg(, volatile void *ptr, unsigned long x, int size)
* store NEW in MEM. Return the initial value in MEM. Success is
* indicated by comparing RETURN with OLD.
*
* The memory barrier should be placed in SMP only when we actually
* make the change. If we don't change anything (so if the returned
* prev is equal to old) then we aren't acquiring anything new and
* we don't need any memory barrier as far I can tell.
* The leading and the trailing memory barriers guarantee that these
* operations are fully ordered.
*
* The trailing memory barrier is placed in SMP unconditionally, in
* order to guarantee that dependency ordering is preserved when a
* dependency is headed by an unsuccessful operation.
*/
static inline unsigned long
@ -139,6 +149,7 @@ ____cmpxchg(_u8, volatile char *m, unsigned char old, unsigned char new)
{
unsigned long prev, tmp, cmp, addr64;
smp_mb();
__asm__ __volatile__(
" andnot %5,7,%4\n"
" insbl %1,%5,%1\n"
@ -150,13 +161,13 @@ ____cmpxchg(_u8, volatile char *m, unsigned char old, unsigned char new)
" or %1,%2,%2\n"
" stq_c %2,0(%4)\n"
" beq %2,3f\n"
__ASM__MB
"2:\n"
".subsection 2\n"
"3: br 1b\n"
".previous"
: "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
: "r" ((long)m), "Ir" (old), "1" (new) : "memory");
smp_mb();
return prev;
}
@ -166,6 +177,7 @@ ____cmpxchg(_u16, volatile short *m, unsigned short old, unsigned short new)
{
unsigned long prev, tmp, cmp, addr64;
smp_mb();
__asm__ __volatile__(
" andnot %5,7,%4\n"
" inswl %1,%5,%1\n"
@ -177,13 +189,13 @@ ____cmpxchg(_u16, volatile short *m, unsigned short old, unsigned short new)
" or %1,%2,%2\n"
" stq_c %2,0(%4)\n"
" beq %2,3f\n"
__ASM__MB
"2:\n"
".subsection 2\n"
"3: br 1b\n"
".previous"
: "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
: "r" ((long)m), "Ir" (old), "1" (new) : "memory");
smp_mb();
return prev;
}
@ -193,6 +205,7 @@ ____cmpxchg(_u32, volatile int *m, int old, int new)
{
unsigned long prev, cmp;
smp_mb();
__asm__ __volatile__(
"1: ldl_l %0,%5\n"
" cmpeq %0,%3,%1\n"
@ -200,13 +213,13 @@ ____cmpxchg(_u32, volatile int *m, int old, int new)
" mov %4,%1\n"
" stl_c %1,%2\n"
" beq %1,3f\n"
__ASM__MB
"2:\n"
".subsection 2\n"
"3: br 1b\n"
".previous"
: "=&r"(prev), "=&r"(cmp), "=m"(*m)
: "r"((long) old), "r"(new), "m"(*m) : "memory");
smp_mb();
return prev;
}
@ -216,6 +229,7 @@ ____cmpxchg(_u64, volatile long *m, unsigned long old, unsigned long new)
{
unsigned long prev, cmp;
smp_mb();
__asm__ __volatile__(
"1: ldq_l %0,%5\n"
" cmpeq %0,%3,%1\n"
@ -223,13 +237,13 @@ ____cmpxchg(_u64, volatile long *m, unsigned long old, unsigned long new)
" mov %4,%1\n"
" stq_c %1,%2\n"
" beq %1,3f\n"
__ASM__MB
"2:\n"
".subsection 2\n"
"3: br 1b\n"
".previous"
: "=&r"(prev), "=&r"(cmp), "=m"(*m)
: "r"((long) old), "r"(new), "m"(*m) : "memory");
smp_mb();
return prev;
}

1
arch/arc/Kconfig
View File

@ -484,7 +484,6 @@ config ARC_CURR_IN_REG
config ARC_EMUL_UNALIGNED
bool "Emulate unaligned memory access (userspace only)"
default N
select SYSCTL_ARCH_UNALIGN_NO_WARN
select SYSCTL_ARCH_UNALIGN_ALLOW
depends on ISA_ARCOMPACT

2
arch/arc/boot/dts/axs101.dts
View File

@ -17,6 +17,6 @@
compatible = "snps,axs101", "snps,arc-sdp";
chosen {
bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=tty0 console=ttyS3,115200n8 consoleblank=0 video=1280x720@60";
bootargs = "earlycon=uart8250,mmio32,0xe0022000,115200n8 console=tty0 console=ttyS3,115200n8 consoleblank=0 video=1280x720@60 print-fatal-signals=1";
};
};

4
arch/arc/boot/dts/axs10x_mb.dtsi
View File

@ -214,13 +214,13 @@
};
eeprom@0x54{
compatible = "24c01";
compatible = "atmel,24c01";
reg = <0x54>;
pagesize = <0x8>;
};
eeprom@0x57{
compatible = "24c04";
compatible = "atmel,24c04";
reg = <0x57>;
pagesize = <0x8>;
};

2
arch/arc/boot/dts/haps_hs_idu.dts
View File

@ -22,7 +22,7 @@
};
chosen {
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=ttyS0,115200n8 debug";
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1";
};
aliases {

2
arch/arc/boot/dts/nsim_700.dts
View File

@ -17,7 +17,7 @@
interrupt-parent = <&core_intc>;
chosen {
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8";
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
};
aliases {

2
arch/arc/boot/dts/nsim_hs.dts
View File

@ -24,7 +24,7 @@
};
chosen {
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8";
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
};
aliases {

2
arch/arc/boot/dts/nsim_hs_idu.dts
View File

@ -15,7 +15,7 @@
interrupt-parent = <&core_intc>;
chosen {
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8";
bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
};
aliases {

2
arch/arc/boot/dts/nsimosci.dts
View File

@ -20,7 +20,7 @@
/* this is for console on PGU */
/* bootargs = "console=tty0 consoleblank=0"; */
/* this is for console on serial */
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24";
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24 print-fatal-signals=1";
};
aliases {

2
arch/arc/boot/dts/nsimosci_hs.dts
View File

@ -20,7 +20,7 @@
/* this is for console on PGU */
/* bootargs = "console=tty0 consoleblank=0"; */
/* this is for console on serial */
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24";
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug video=640x480-24 print-fatal-signals=1";
};
aliases {

2
arch/arc/boot/dts/nsimosci_hs_idu.dts
View File

@ -18,7 +18,7 @@
chosen {
/* this is for console on serial */
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblan=0 debug video=640x480-24";
bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblan=0 debug video=640x480-24 print-fatal-signals=1";
};
aliases {

3
arch/arc/include/asm/bug.h
View File

@ -23,7 +23,8 @@ void die(const char *str, struct pt_regs *regs, unsigned long address);
#define BUG() do { \
pr_warn("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
dump_stack(); \
barrier_before_unreachable(); \
__builtin_trap(); \
} while (0)
#define HAVE_ARCH_BUG

2
arch/arc/include/asm/entry-arcv2.h
View File

@ -184,7 +184,7 @@
.macro FAKE_RET_FROM_EXCPN
lr r9, [status32]
bic r9, r9, (STATUS_U_MASK|STATUS_DE_MASK|STATUS_AE_MASK)
or r9, r9, (STATUS_L_MASK|STATUS_IE_MASK)
or r9, r9, STATUS_IE_MASK
kflag r9
.endm

74
arch/arc/kernel/mcip.c
View File

@ -22,10 +22,79 @@ static DEFINE_RAW_SPINLOCK(mcip_lock);
static char smp_cpuinfo_buf[128];
/*
* Set mask to halt GFRC if any online core in SMP cluster is halted.
* Only works for ARC HS v3.0+, on earlier versions has no effect.
*/
static void mcip_update_gfrc_halt_mask(int cpu)
{
struct bcr_generic gfrc;
unsigned long flags;
u32 gfrc_halt_mask;
READ_BCR(ARC_REG_GFRC_BUILD, gfrc);
/*
* CMD_GFRC_SET_CORE and CMD_GFRC_READ_CORE commands were added in
* GFRC 0x3 version.
*/
if (gfrc.ver < 0x3)
return;
raw_spin_lock_irqsave(&mcip_lock, flags);
__mcip_cmd(CMD_GFRC_READ_CORE, 0);
gfrc_halt_mask = read_aux_reg(ARC_REG_MCIP_READBACK);
gfrc_halt_mask |= BIT(cpu);
__mcip_cmd_data(CMD_GFRC_SET_CORE, 0, gfrc_halt_mask);
raw_spin_unlock_irqrestore(&mcip_lock, flags);
}
static void mcip_update_debug_halt_mask(int cpu)
{
u32 mcip_mask = 0;
unsigned long flags;
raw_spin_lock_irqsave(&mcip_lock, flags);
/*
* mcip_mask is same for CMD_DEBUG_SET_SELECT and CMD_DEBUG_SET_MASK
* commands. So read it once instead of reading both CMD_DEBUG_READ_MASK
* and CMD_DEBUG_READ_SELECT.
*/
__mcip_cmd(CMD_DEBUG_READ_SELECT, 0);
mcip_mask = read_aux_reg(ARC_REG_MCIP_READBACK);
mcip_mask |= BIT(cpu);
__mcip_cmd_data(CMD_DEBUG_SET_SELECT, 0, mcip_mask);
/*
* Parameter specified halt cause:
* STATUS32[H]/actionpoint/breakpoint/self-halt
* We choose all of them (0xF).
*/
__mcip_cmd_data(CMD_DEBUG_SET_MASK, 0xF, mcip_mask);
raw_spin_unlock_irqrestore(&mcip_lock, flags);
}
static void mcip_setup_per_cpu(int cpu)
{
struct mcip_bcr mp;
READ_BCR(ARC_REG_MCIP_BCR, mp);
smp_ipi_irq_setup(cpu, IPI_IRQ);
smp_ipi_irq_setup(cpu, SOFTIRQ_IRQ);
/* Update GFRC halt mask as new CPU came online */
if (mp.gfrc)
mcip_update_gfrc_halt_mask(cpu);
/* Update MCIP debug mask as new CPU came online */
if (mp.dbg)
mcip_update_debug_halt_mask(cpu);
}
static void mcip_ipi_send(int cpu)
@ -101,11 +170,6 @@ static void mcip_probe_n_setup(void)
IS_AVAIL1(mp.gfrc, "GFRC"));
cpuinfo_arc700[0].extn.gfrc = mp.gfrc;
if (mp.dbg) {
__mcip_cmd_data(CMD_DEBUG_SET_SELECT, 0, 0xf);
__mcip_cmd_data(CMD_DEBUG_SET_MASK, 0xf, 0xf);
}
}
struct plat_smp_ops plat_smp_ops = {

4
arch/arc/kernel/setup.c
View File

@ -51,7 +51,7 @@ static const struct id_to_str arc_cpu_rel[] = {
{ 0x51, "R2.0" },
{ 0x52, "R2.1" },
{ 0x53, "R3.0" },
{ 0x54, "R4.0" },
{ 0x54, "R3.10a" },
#endif
{ 0x00, NULL }
};
@ -373,7 +373,7 @@ static void arc_chk_core_config(void)
{
struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
int saved = 0, present = 0;
char *opt_nm = NULL;;
char *opt_nm = NULL;
if (!cpu->extn.timer0)
panic("Timer0 is not present!\n");

50
arch/arc/kernel/smp.c
View File

@ -24,6 +24,7 @@
#include <linux/reboot.h>
#include <linux/irqdomain.h>
#include <linux/export.h>
#include <linux/of_fdt.h>
#include <asm/processor.h>
#include <asm/setup.h>
@ -47,6 +48,42 @@ void __init smp_prepare_boot_cpu(void)
{
}
static int __init arc_get_cpu_map(const char *name, struct cpumask *cpumask)
{
unsigned long dt_root = of_get_flat_dt_root();
const char *buf;
buf = of_get_flat_dt_prop(dt_root, name, NULL);
if (!buf)
return -EINVAL;
if (cpulist_parse(buf, cpumask))
return -EINVAL;
return 0;
}
/*
* Read from DeviceTree and setup cpu possible mask. If there is no
* "possible-cpus" property in DeviceTree pretend all [0..NR_CPUS-1] exist.
*/
static void __init arc_init_cpu_possible(void)
{
struct cpumask cpumask;
if (arc_get_cpu_map("possible-cpus", &cpumask)) {
pr_warn("Failed to get possible-cpus from dtb, pretending all %u cpus exist\n",
NR_CPUS);
cpumask_setall(&cpumask);
}
if (!cpumask_test_cpu(0, &cpumask))
panic("Master cpu (cpu[0]) is missed in cpu possible mask!");
init_cpu_possible(&cpumask);
}
/*
* Called from setup_arch() before calling setup_processor()
*
@ -58,10 +95,7 @@ void __init smp_prepare_boot_cpu(void)
*/
void __init smp_init_cpus(void)
{
unsigned int i;
for (i = 0; i < NR_CPUS; i++)
set_cpu_possible(i, true);
arc_init_cpu_possible();
if (plat_smp_ops.init_early_smp)
plat_smp_ops.init_early_smp();
@ -70,16 +104,12 @@ void __init smp_init_cpus(void)
/* called from init ( ) => process 1 */
void __init smp_prepare_cpus(unsigned int max_cpus)
{
int i;
/*
* if platform didn't set the present map already, do it now
* boot cpu is set to present already by init/main.c
*/
if (num_present_cpus() <= 1) {
for (i = 0; i < max_cpus; i++)
set_cpu_present(i, true);
}
if (num_present_cpus() <= 1)
init_cpu_present(cpu_possible_mask);
}
void __init smp_cpus_done(unsigned int max_cpus)

2
arch/arc/kernel/unwind.c
View File

@ -366,7 +366,7 @@ static void init_unwind_hdr(struct unwind_table *table,
return;
ret_err:
panic("Attention !!! Dwarf FDE parsing errors\n");;
panic("Attention !!! Dwarf FDE parsing errors\n");
}
#ifdef CONFIG_MODULES

5
arch/arc/mm/cache.c
View File

@ -780,7 +780,10 @@ noinline static void slc_entire_op(const int op)
write_aux_reg(r, ctrl);
write_aux_reg(ARC_REG_SLC_INVALIDATE, 1);
if (op & OP_INV) /* Inv or flush-n-inv use same cmd reg */
write_aux_reg(ARC_REG_SLC_INVALIDATE, 0x1);
else
write_aux_reg(ARC_REG_SLC_FLUSH, 0x1);
/* Make sure "busy" bit reports correct stataus, see STAR 9001165532 */
read_aux_reg(r);

2
arch/arm/boot/dts/bcm11351.dtsi
View File

@ -55,7 +55,7 @@
<0x3ff00100 0x100>;
};
smc@0x3404c000 {
smc@3404c000 {
compatible = "brcm,bcm11351-smc", "brcm,kona-smc";
reg = <0x3404c000 0x400>; /* 1 KiB in SRAM */
};

2
arch/arm/boot/dts/bcm21664.dtsi
View File

@ -55,7 +55,7 @@
<0x3ff00100 0x100>;
};
smc@0x3404e000 {
smc@3404e000 {
compatible = "brcm,bcm21664-smc", "brcm,kona-smc";
reg = <0x3404e000 0x400>; /* 1 KiB in SRAM */
};

6
arch/arm/boot/dts/bcm2835.dtsi
View File

@ -18,10 +18,10 @@
soc {
ranges = <0x7e000000 0x20000000 0x02000000>;
dma-ranges = <0x40000000 0x00000000 0x20000000>;
};
arm-pmu {
compatible = "arm,arm1176-pmu";
};
arm-pmu {
compatible = "arm,arm1176-pmu";
};
};

12
arch/arm/boot/dts/bcm2836.dtsi
View File

@ -9,19 +9,19 @@
<0x40000000 0x40000000 0x00001000>;
dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
local_intc: local_intc {
local_intc: local_intc@40000000 {
compatible = "brcm,bcm2836-l1-intc";
reg = <0x40000000 0x100>;
interrupt-controller;
#interrupt-cells = <2>;
interrupt-parent = <&local_intc>;
};
};
arm-pmu {
compatible = "arm,cortex-a7-pmu";
interrupt-parent = <&local_intc>;
interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
};
arm-pmu {
compatible = "arm,cortex-a7-pmu";
interrupt-parent = <&local_intc>;
interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
};
timer {

2
arch/arm/boot/dts/bcm2837.dtsi
View File

@ -8,7 +8,7 @@
<0x40000000 0x40000000 0x00001000>;
dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
local_intc: local_intc {
local_intc: local_intc@40000000 {
compatible = "brcm,bcm2836-l1-intc";
reg = <0x40000000 0x100>;
interrupt-controller;

2
arch/arm/boot/dts/bcm283x.dtsi
View File

@ -465,7 +465,7 @@
status = "disabled";
};
aux: aux@0x7e215000 {
aux: aux@7e215000 {
compatible = "brcm,bcm2835-aux";
#clock-cells = <1>;
reg = <0x7e215000 0x8>;

2
arch/arm/boot/dts/bcm958625hr.dts
View File

@ -49,7 +49,7 @@
memory {
device_type = "memory";
reg = <0x60000000 0x80000000>;
reg = <0x60000000 0x20000000>;
};
gpio-restart {

2
arch/arm/boot/dts/gemini-dlink-dns-313.dts
View File

@ -269,7 +269,7 @@
sata: sata@46000000 {
/* The ROM uses this muxmode */
cortina,gemini-ata-muxmode = <3>;
cortina,gemini-ata-muxmode = <0>;
cortina,gemini-enable-sata-bridge;
status = "okay";
};

2
arch/arm/boot/dts/imx6dl-icore-rqs.dts
View File

@ -42,7 +42,7 @@
/dts-v1/;
#include "imx6q.dtsi"
#include "imx6dl.dtsi"
#include "imx6qdl-icore-rqs.dtsi"
/ {

9
arch/arm/boot/dts/logicpd-som-lv.dtsi
View File

@ -71,6 +71,8 @@
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;
clock-frequency = <2600000>;
twl: twl@48 {
@ -189,7 +191,12 @@
>;
};
i2c1_pins: pinmux_i2c1_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0) /* i2c1_scl.i2c1_scl */
OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT | MUX_MODE0) /* i2c1_sda.i2c1_sda */
>;
};
};
&omap3_pmx_wkup {

8
arch/arm/boot/dts/logicpd-torpedo-som.dtsi
View File

@ -66,6 +66,8 @@
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;
clock-frequency = <2600000>;
twl: twl@48 {
@ -136,6 +138,12 @@
OMAP3_CORE1_IOPAD(0x21b8, PIN_INPUT | MUX_MODE0) /* hsusb0_data7.hsusb0_data7 */
>;
};
i2c1_pins: pinmux_i2c1_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0) /* i2c1_scl.i2c1_scl */
OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT | MUX_MODE0) /* i2c1_sda.i2c1_sda */
>;
};
};
&uart2 {

2
arch/arm/boot/dts/omap5-uevm.dts
View File

@ -47,7 +47,7 @@
gpios = <&gpio3 19 GPIO_ACTIVE_LOW>; /* gpio3_83 */
wakeup-source;
autorepeat;
debounce_interval = <50>;
debounce-interval = <50>;
};
};

4
arch/arm/boot/dts/rk3036.dtsi
View File

@ -280,7 +280,7 @@
max-frequency = <37500000>;
clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
<&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
resets = <&cru SRST_SDIO>;
@ -298,7 +298,7 @@
max-frequency = <37500000>;
clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
<&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
default-sample-phase = <158>;
disable-wp;
dmas = <&pdma 12>;

6
arch/arm/boot/dts/rk322x.dtsi
View File

@ -621,7 +621,7 @@
interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
<&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_bus4>;
@ -634,7 +634,7 @@
interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
<&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
pinctrl-names = "default";
pinctrl-0 = <&sdio_clk &sdio_cmd &sdio_bus4>;
@ -649,7 +649,7 @@
max-frequency = <37500000>;
clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
<&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
bus-width = <8>;
default-sample-phase = <158>;
fifo-depth = <0x100>;

20
arch/arm/boot/dts/rk3288-phycore-som.dtsi
View File

@ -110,26 +110,6 @@
};
};
&cpu0 {
cpu0-supply = <&vdd_cpu>;
operating-points = <
/* KHz uV */
1800000 1400000
1608000 1350000
1512000 1300000
1416000 1200000
1200000 1100000
1008000 1050000
816000 1000000
696000 950000
600000 900000
408000 900000
312000 900000
216000 900000
126000 900000
>;
};
&emmc {
status = "okay";
bus-width = <8>;

20
arch/arm/boot/dts/zx296702.dtsi
View File

@ -56,7 +56,7 @@
clocks = <&topclk ZX296702_A9_PERIPHCLK>;
};
l2cc: l2-cache-controller@0x00c00000 {
l2cc: l2-cache-controller@c00000 {
compatible = "arm,pl310-cache";
reg = <0x00c00000 0x1000>;
cache-unified;
@ -67,30 +67,30 @@
arm,double-linefill-incr = <0>;
};
pcu: pcu@0xa0008000 {
pcu: pcu@a0008000 {
compatible = "zte,zx296702-pcu";
reg = <0xa0008000 0x1000>;
};
topclk: topclk@0x09800000 {
topclk: topclk@9800000 {
compatible = "zte,zx296702-topcrm-clk";
reg = <0x09800000 0x1000>;
#clock-cells = <1>;
};
lsp1clk: lsp1clk@0x09400000 {
lsp1clk: lsp1clk@9400000 {
compatible = "zte,zx296702-lsp1crpm-clk";
reg = <0x09400000 0x1000>;
#clock-cells = <1>;
};
lsp0clk: lsp0clk@0x0b000000 {
lsp0clk: lsp0clk@b000000 {
compatible = "zte,zx296702-lsp0crpm-clk";
reg = <0x0b000000 0x1000>;
#clock-cells = <1>;
};
uart0: serial@0x09405000 {
uart0: serial@9405000 {
compatible = "zte,zx296702-uart";
reg = <0x09405000 0x1000>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
@ -98,7 +98,7 @@
status = "disabled";
};
uart1: serial@0x09406000 {
uart1: serial@9406000 {
compatible = "zte,zx296702-uart";
reg = <0x09406000 0x1000>;
interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
@ -106,7 +106,7 @@
status = "disabled";
};
mmc0: mmc@0x09408000 {
mmc0: mmc@9408000 {
compatible = "snps,dw-mshc";
#address-cells = <1>;
#size-cells = <0>;
@ -119,7 +119,7 @@
status = "disabled";
};
mmc1: mmc@0x0b003000 {
mmc1: mmc@b003000 {
compatible = "snps,dw-mshc";
#address-cells = <1>;
#size-cells = <0>;
@ -132,7 +132,7 @@
status = "disabled";
};
sysctrl: sysctrl@0xa0007000 {
sysctrl: sysctrl@a0007000 {
compatible = "zte,sysctrl", "syscon";
reg = <0xa0007000 0x1000>;
};

2
arch/arm/configs/omap2plus_defconfig
View File

@ -319,7 +319,7 @@ CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_RC_CORE=m
CONFIG_MEDIA_CONTROLLER=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
CONFIG_LIRC=m
CONFIG_LIRC=y
CONFIG_RC_DEVICES=y
CONFIG_IR_RX51=m
CONFIG_V4L_PLATFORM_DRIVERS=y

2
arch/arm/kernel/time.c
View File

@ -83,7 +83,7 @@ static void dummy_clock_access(struct timespec64 *ts)
}
static clock_access_fn __read_persistent_clock = dummy_clock_access;
static clock_access_fn __read_boot_clock = dummy_clock_access;;
static clock_access_fn __read_boot_clock = dummy_clock_access;
void read_persistent_clock64(struct timespec64 *ts)
{

5
arch/arm/kvm/hyp/Makefile
View File

@ -7,6 +7,8 @@ ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
KVM=../../../../virt/kvm
CFLAGS_ARMV7VE :=$(call cc-option, -march=armv7ve)
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v3-sr.o
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/timer-sr.o
@ -15,7 +17,10 @@ obj-$(CONFIG_KVM_ARM_HOST) += tlb.o
obj-$(CONFIG_KVM_ARM_HOST) += cp15-sr.o
obj-$(CONFIG_KVM_ARM_HOST) += vfp.o
obj-$(CONFIG_KVM_ARM_HOST) += banked-sr.o
CFLAGS_banked-sr.o += $(CFLAGS_ARMV7VE)
obj-$(CONFIG_KVM_ARM_HOST) += entry.o
obj-$(CONFIG_KVM_ARM_HOST) += hyp-entry.o
obj-$(CONFIG_KVM_ARM_HOST) += switch.o
CFLAGS_switch.o += $(CFLAGS_ARMV7VE)
obj-$(CONFIG_KVM_ARM_HOST) += s2-setup.o

4
arch/arm/kvm/hyp/banked-sr.c
View File

@ -20,6 +20,10 @@
#include <asm/kvm_hyp.h>
/*
* gcc before 4.9 doesn't understand -march=armv7ve, so we have to
* trick the assembler.
*/
__asm__(".arch_extension virt");
void __hyp_text __banked_save_state(struct kvm_cpu_context *ctxt)

2
arch/arm/mach-clps711x/board-dt.c
View File

@ -69,7 +69,7 @@ static void clps711x_restart(enum reboot_mode mode, const char *cmd)
soft_restart(0);
}
static const char *clps711x_compat[] __initconst = {
static const char *const clps711x_compat[] __initconst = {
"cirrus,ep7209",
NULL
};

2
arch/arm/mach-davinci/board-dm355-evm.c
View File

@ -368,7 +368,7 @@ static struct spi_eeprom at25640a = {
.flags = EE_ADDR2,
};
static struct spi_board_info dm355_evm_spi_info[] __initconst = {
static const struct spi_board_info dm355_evm_spi_info[] __initconst = {
{
.modalias = "at25",
.platform_data = &at25640a,

2
arch/arm/mach-davinci/board-dm355-leopard.c
View File

@ -217,7 +217,7 @@ static struct spi_eeprom at25640a = {
.flags = EE_ADDR2,
};
static struct spi_board_info dm355_leopard_spi_info[] __initconst = {
static const struct spi_board_info dm355_leopard_spi_info[] __initconst = {
{
.modalias = "at25",
.platform_data = &at25640a,

2
arch/arm/mach-davinci/board-dm365-evm.c
View File

@ -726,7 +726,7 @@ static struct spi_eeprom at25640 = {
.flags = EE_ADDR2,
};
static struct spi_board_info dm365_evm_spi_info[] __initconst = {
static const struct spi_board_info dm365_evm_spi_info[] __initconst = {
{
.modalias = "at25",
.platform_data = &at25640,

4
arch/arm/mach-mvebu/Kconfig
View File

@ -41,7 +41,7 @@ config MACH_ARMADA_375
depends on ARCH_MULTI_V7
select ARMADA_370_XP_IRQ
select ARM_ERRATA_720789
select ARM_ERRATA_753970
select PL310_ERRATA_753970
select ARM_GIC
select ARMADA_375_CLK
select HAVE_ARM_SCU
@ -57,7 +57,7 @@ config MACH_ARMADA_38X
bool "Marvell Armada 380/385 boards"
depends on ARCH_MULTI_V7
select ARM_ERRATA_720789
select ARM_ERRATA_753970
select PL310_ERRATA_753970
select ARM_GIC
select ARM_GLOBAL_TIMER
select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK

6
arch/arm/mach-omap1/clock.c
View File

@ -1011,17 +1011,17 @@ static int clk_debugfs_register_one(struct clk *c)
return -ENOMEM;
c->dent = d;
d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount);
d = debugfs_create_u8("usecount", S_IRUGO, c->dent, &c->usecount);
if (!d) {
err = -ENOMEM;
goto err_out;
}
d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate);
d = debugfs_create_ulong("rate", S_IRUGO, c->dent, &c->rate);
if (!d) {
err = -ENOMEM;
goto err_out;
}
d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags);
d = debugfs_create_x8("flags", S_IRUGO, c->dent, &c->flags);
if (!d) {
err = -ENOMEM;
goto err_out;

4
arch/arm/mach-omap2/omap-wakeupgen.c
View File

@ -299,8 +299,6 @@ static void irq_save_context(void)
if (soc_is_dra7xx())
return;
if (!sar_base)
sar_base = omap4_get_sar_ram_base();
if (wakeupgen_ops && wakeupgen_ops->save_context)
wakeupgen_ops->save_context();
}
@ -598,6 +596,8 @@ static int __init wakeupgen_init(struct device_node *node,
irq_hotplug_init();
irq_pm_init();
sar_base = omap4_get_sar_ram_base();
return 0;
}
IRQCHIP_DECLARE(ti_wakeupgen, "ti,omap4-wugen-mpu", wakeupgen_init);

6
arch/arm/mach-omap2/omap_hwmod.c
View File

@ -977,6 +977,9 @@ static int _enable_clocks(struct omap_hwmod *oh)
pr_debug("omap_hwmod: %s: enabling clocks\n", oh->name);
if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
_enable_optional_clocks(oh);
if (oh->_clk)
clk_enable(oh->_clk);
@ -985,9 +988,6 @@ static int _enable_clocks(struct omap_hwmod *oh)
clk_enable(os->_clk);
}
if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
_enable_optional_clocks(oh);
/* The opt clocks are controlled by the device driver. */
return 0;

4
arch/arm/mach-omap2/pm.c
View File

@ -186,7 +186,7 @@ static void omap_pm_end(void)
cpu_idle_poll_ctrl(false);
}
static void omap_pm_finish(void)
static void omap_pm_wake(void)
{
if (soc_is_omap34xx())
omap_prcm_irq_complete();
@ -196,7 +196,7 @@ static const struct platform_suspend_ops omap_pm_ops = {
.begin = omap_pm_begin,
.end = omap_pm_end,
.enter = omap_pm_enter,
.finish = omap_pm_finish,
.wake = omap_pm_wake,
.valid = suspend_valid_only_mem,
};

19
arch/arm/mach-omap2/timer.c
View File

@ -156,12 +156,6 @@ static struct clock_event_device clockevent_gpt = {
.tick_resume = omap2_gp_timer_shutdown,
};
static struct property device_disabled = {
.name = "status",
.length = sizeof("disabled"),
.value = "disabled",
};
static const struct of_device_id omap_timer_match[] __initconst = {
{ .compatible = "ti,omap2420-timer", },
{ .compatible = "ti,omap3430-timer", },
@ -203,8 +197,17 @@ static struct device_node * __init omap_get_timer_dt(const struct of_device_id *
of_get_property(np, "ti,timer-secure", NULL)))
continue;
if (!of_device_is_compatible(np, "ti,omap-counter32k"))
of_add_property(np, &device_disabled);
if (!of_device_is_compatible(np, "ti,omap-counter32k")) {
struct property *prop;
prop = kzalloc(sizeof(*prop), GFP_KERNEL);
if (!prop)
return NULL;
prop->name = "status";
prop->value = "disabled";
prop->length = strlen(prop->value);
of_add_property(np, prop);
}
return np;
}

3
arch/arm/mach-orion5x/Kconfig
View File

@ -58,7 +58,6 @@ config MACH_KUROBOX_PRO
config MACH_DNS323
bool "D-Link DNS-323"
select GENERIC_NET_UTILS
select I2C_BOARDINFO if I2C
help
Say 'Y' here if you want your kernel to support the
@ -66,7 +65,6 @@ config MACH_DNS323
config MACH_TS209
bool "QNAP TS-109/TS-209"
select GENERIC_NET_UTILS
help
Say 'Y' here if you want your kernel to support the
QNAP TS-109/TS-209 platform.
@ -101,7 +99,6 @@ config MACH_LINKSTATION_LS_HGL
config MACH_TS409
bool "QNAP TS-409"
select GENERIC_NET_UTILS
help
Say 'Y' here if you want your kernel to support the
QNAP TS-409 platform.

53
arch/arm/mach-orion5x/dns323-setup.c
View File

@ -173,10 +173,42 @@ static struct mv643xx_eth_platform_data dns323_eth_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};
/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
* functions be kept somewhere?
*/
static int __init dns323_parse_hex_nibble(char n)
{
if (n >= '0' && n <= '9')
return n - '0';
if (n >= 'A' && n <= 'F')
return n - 'A' + 10;
if (n >= 'a' && n <= 'f')
return n - 'a' + 10;
return -1;
}
static int __init dns323_parse_hex_byte(const char *b)
{
int hi;
int lo;
hi = dns323_parse_hex_nibble(b[0]);
lo = dns323_parse_hex_nibble(b[1]);
if (hi < 0 || lo < 0)
return -1;
return (hi << 4) | lo;
}
static int __init dns323_read_mac_addr(void)
{
u_int8_t addr[6];
void __iomem *mac_page;
int i;
char *mac_page;
/* MAC address is stored as a regular ol' string in /dev/mtdblock4
* (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
@ -185,8 +217,23 @@ static int __init dns323_read_mac_addr(void)
if (!mac_page)
return -ENOMEM;
if (!mac_pton((__force const char *) mac_page, addr))
goto error_fail;
/* Sanity check the string we're looking at */
for (i = 0; i < 5; i++) {
if (*(mac_page + (i * 3) + 2) != ':') {
goto error_fail;
}
}
for (i = 0; i < 6; i++) {
int byte;
byte = dns323_parse_hex_byte(mac_page + (i * 3));
if (byte < 0) {
goto error_fail;
}
addr[i] = byte;
}
iounmap(mac_page);
printk("DNS-323: Found ethernet MAC address: %pM\n", addr);

49
arch/arm/mach-orion5x/tsx09-common.c
View File

@ -53,12 +53,53 @@ struct mv643xx_eth_platform_data qnap_tsx09_eth_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};
static int __init qnap_tsx09_parse_hex_nibble(char n)
{
if (n >= '0' && n <= '9')
return n - '0';
if (n >= 'A' && n <= 'F')
return n - 'A' + 10;
if (n >= 'a' && n <= 'f')
return n - 'a' + 10;
return -1;
}
static int __init qnap_tsx09_parse_hex_byte(const char *b)
{
int hi;
int lo;
hi = qnap_tsx09_parse_hex_nibble(b[0]);
lo = qnap_tsx09_parse_hex_nibble(b[1]);
if (hi < 0 || lo < 0)
return -1;
return (hi << 4) | lo;
}
static int __init qnap_tsx09_check_mac_addr(const char *addr_str)
{
u_int8_t addr[6];
int i;
if (!mac_pton(addr_str, addr))
return -1;
for (i = 0; i < 6; i++) {
int byte;
/*
* Enforce "xx:xx:xx:xx:xx:xx\n" format.
*/
if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
return -1;
byte = qnap_tsx09_parse_hex_byte(addr_str + (i * 3));
if (byte < 0)
return -1;
addr[i] = byte;
}
printk(KERN_INFO "tsx09: found ethernet mac address %pM\n", addr);
@ -77,12 +118,12 @@ void __init qnap_tsx09_find_mac_addr(u32 mem_base, u32 size)
unsigned long addr;
for (addr = mem_base; addr < (mem_base + size); addr += 1024) {
void __iomem *nor_page;
char *nor_page;
int ret = 0;
nor_page = ioremap(addr, 1024);
if (nor_page != NULL) {
ret = qnap_tsx09_check_mac_addr((__force const char *)nor_page);
ret = qnap_tsx09_check_mac_addr(nor_page);
iounmap(nor_page);
}

35
arch/arm/mach-ux500/cpu-db8500.c
View File

@ -23,7 +23,6 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/perf/arm_pmu.h>
#include <linux/regulator/machine.h>
#include <asm/outercache.h>
@ -112,37 +111,6 @@ static void ux500_restart(enum reboot_mode mode, const char *cmd)
prcmu_system_reset(0);
}
/*
* The PMU IRQ lines of two cores are wired together into a single interrupt.
* Bounce the interrupt to the other core if it's not ours.
*/
static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler)
{
irqreturn_t ret = handler(irq, dev);
int other = !smp_processor_id();
if (ret == IRQ_NONE && cpu_online(other))
irq_set_affinity(irq, cpumask_of(other));
/*
* We should be able to get away with the amount of IRQ_NONEs we give,
* while still having the spurious IRQ detection code kick in if the
* interrupt really starts hitting spuriously.
*/
return ret;
}
static struct arm_pmu_platdata db8500_pmu_platdata = {
.handle_irq = db8500_pmu_handler,
.irq_flags = IRQF_NOBALANCING | IRQF_NO_THREAD,
};
static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
/* Requires call-back bindings. */
OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
{},
};
static struct of_dev_auxdata u8540_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu", NULL),
{},
@ -165,9 +133,6 @@ static void __init u8500_init_machine(void)
if (of_machine_is_compatible("st-ericsson,u8540"))
of_platform_populate(NULL, u8500_local_bus_nodes,
u8540_auxdata_lookup, NULL);
else
of_platform_populate(NULL, u8500_local_bus_nodes,
u8500_auxdata_lookup, NULL);
}
static const char * stericsson_dt_platform_compat[] = {

23
arch/arm/plat-orion/common.c
View File

@ -472,28 +472,27 @@ void __init orion_ge11_init(struct mv643xx_eth_platform_data *eth_data,
/*****************************************************************************
* Ethernet switch
****************************************************************************/
static __initconst const char *orion_ge00_mvmdio_bus_name = "orion-mii";
static __initdata struct mdio_board_info
orion_ge00_switch_board_info;
static __initdata struct mdio_board_info orion_ge00_switch_board_info = {
.bus_id = "orion-mii",
.modalias = "mv88e6085",
};
void __init orion_ge00_switch_init(struct dsa_chip_data *d)
{
struct mdio_board_info *bd;
unsigned int i;
if (!IS_BUILTIN(CONFIG_PHYLIB))
return;
for (i = 0; i < ARRAY_SIZE(d->port_names); i++)
if (!strcmp(d->port_names[i], "cpu"))
for (i = 0; i < ARRAY_SIZE(d->port_names); i++) {
if (!strcmp(d->port_names[i], "cpu")) {
d->netdev[i] = &orion_ge00.dev;
break;
}
}
bd = &orion_ge00_switch_board_info;
bd->bus_id = orion_ge00_mvmdio_bus_name;
bd->mdio_addr = d->sw_addr;
d->netdev[i] = &orion_ge00.dev;
strcpy(bd->modalias, "mv88e6085");
bd->platform_data = d;
orion_ge00_switch_board_info.mdio_addr = d->sw_addr;
orion_ge00_switch_board_info.platform_data = d;
mdiobus_register_board_info(&orion_ge00_switch_board_info, 1);
}

4
arch/arm64/boot/dts/amlogic/meson-axg.dtsi
View File

@ -165,14 +165,14 @@
uart_A: serial@24000 {
compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
reg = <0x0 0x24000 0x0 0x14>;
reg = <0x0 0x24000 0x0 0x18>;
interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
uart_B: serial@23000 {
compatible = "amlogic,meson-gx-uart", "amlogic,meson-uart";
reg = <0x0 0x23000 0x0 0x14>;
reg = <0x0 0x23000 0x0 0x18>;
interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};

10
arch/arm64/boot/dts/amlogic/meson-gx.dtsi
View File

@ -235,14 +235,14 @@
uart_A: serial@84c0 {
compatible = "amlogic,meson-gx-uart";
reg = <0x0 0x84c0 0x0 0x14>;
reg = <0x0 0x84c0 0x0 0x18>;
interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
uart_B: serial@84dc {
compatible = "amlogic,meson-gx-uart";
reg = <0x0 0x84dc 0x0 0x14>;
reg = <0x0 0x84dc 0x0 0x18>;
interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
@ -287,7 +287,7 @@
uart_C: serial@8700 {
compatible = "amlogic,meson-gx-uart";
reg = <0x0 0x8700 0x0 0x14>;
reg = <0x0 0x8700 0x0 0x18>;
interrupts = <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
@ -404,14 +404,14 @@
uart_AO: serial@4c0 {
compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart";
reg = <0x0 0x004c0 0x0 0x14>;
reg = <0x0 0x004c0 0x0 0x18>;
interrupts = <GIC_SPI 193 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
uart_AO_B: serial@4e0 {
compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart";
reg = <0x0 0x004e0 0x0 0x14>;
reg = <0x0 0x004e0 0x0 0x18>;
interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};

1
arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
View File

@ -631,6 +631,7 @@
internal_phy: ethernet-phy@8 {
compatible = "ethernet-phy-id0181.4400", "ethernet-phy-ieee802.3-c22";
interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
reg = <8>;
max-speed = <100>;
};

3
arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi
View File

@ -98,7 +98,7 @@
clock-output-names = "clk125mhz";
};
pci {
pcie@30000000 {
compatible = "pci-host-ecam-generic";
device_type = "pci";
#interrupt-cells = <1>;
@ -118,6 +118,7 @@
ranges =
<0x02000000 0 0x40000000 0 0x40000000 0 0x20000000
0x43000000 0x40 0x00000000 0x40 0x00000000 0x20 0x00000000>;
bus-range = <0 0xff>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map =
/* addr pin ic icaddr icintr */

2
arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
View File

@ -51,7 +51,7 @@
#size-cells = <2>;
ranges;
ramoops@0x21f00000 {
ramoops@21f00000 {
compatible = "ramoops";
reg = <0x0 0x21f00000 0x0 0x00100000>;
record-size = <0x00020000>;

2
arch/arm64/boot/dts/mediatek/mt8173.dtsi
View File

@ -341,7 +341,7 @@
reg = <0 0x10005000 0 0x1000>;
};
pio: pinctrl@0x10005000 {
pio: pinctrl@10005000 {
compatible = "mediatek,mt8173-pinctrl";
reg = <0 0x1000b000 0 0x1000>;
mediatek,pctl-regmap = <&syscfg_pctl_a>;

6
arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
View File

@ -140,16 +140,16 @@
};
agnoc@0 {
qcom,pcie@00600000 {
qcom,pcie@600000 {
perst-gpio = <&msmgpio 35 GPIO_ACTIVE_LOW>;
};
qcom,pcie@00608000 {
qcom,pcie@608000 {
status = "okay";
perst-gpio = <&msmgpio 130 GPIO_ACTIVE_LOW>;
};
qcom,pcie@00610000 {
qcom,pcie@610000 {
status = "okay";
perst-gpio = <&msmgpio 114 GPIO_ACTIVE_LOW>;
};

6
arch/arm64/boot/dts/qcom/msm8996.dtsi
View File

@ -840,7 +840,7 @@
#size-cells = <1>;
ranges;
pcie0: qcom,pcie@00600000 {
pcie0: qcom,pcie@600000 {
compatible = "qcom,pcie-msm8996", "snps,dw-pcie";
status = "disabled";
power-domains = <&gcc PCIE0_GDSC>;
@ -893,7 +893,7 @@
};
pcie1: qcom,pcie@00608000 {
pcie1: qcom,pcie@608000 {
compatible = "qcom,pcie-msm8996", "snps,dw-pcie";
power-domains = <&gcc PCIE1_GDSC>;
bus-range = <0x00 0xff>;
@ -946,7 +946,7 @@
"bus_slave";
};
pcie2: qcom,pcie@00610000 {
pcie2: qcom,pcie@610000 {
compatible = "qcom,pcie-msm8996", "snps,dw-pcie";
power-domains = <&gcc PCIE2_GDSC>;
bus-range = <0x00 0xff>;

7
arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
View File

@ -132,17 +132,16 @@
assigned-clocks = <&cru SCLK_MAC2IO>, <&cru SCLK_MAC2IO_EXT>;
assigned-clock-parents = <&gmac_clkin>, <&gmac_clkin>;
clock_in_out = "input";
/* shows instability at 1GBit right now */
max-speed = <100>;
phy-supply = <&vcc_io>;
phy-mode = "rgmii";
pinctrl-names = "default";
pinctrl-0 = <&rgmiim1_pins>;
snps,force_thresh_dma_mode;
snps,reset-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
snps,reset-active-low;
snps,reset-delays-us = <0 10000 50000>;
tx_delay = <0x26>;
rx_delay = <0x11>;
tx_delay = <0x24>;
rx_delay = <0x18>;
status = "okay";
};

6
arch/arm64/boot/dts/rockchip/rk3328.dtsi
View File

@ -730,7 +730,7 @@
interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
<&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
status = "disabled";
};
@ -741,7 +741,7 @@
interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_SDIO>, <&cru SCLK_SDIO>,
<&cru SCLK_SDIO_DRV>, <&cru SCLK_SDIO_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
status = "disabled";
};
@ -752,7 +752,7 @@
interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
<&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
status = "disabled";
};

2
arch/arm64/boot/dts/rockchip/rk3368.dtsi
View File

@ -257,7 +257,7 @@
max-frequency = <150000000>;
clocks = <&cru HCLK_SDIO0>, <&cru SCLK_SDIO0>,
<&cru SCLK_SDIO0_DRV>, <&cru SCLK_SDIO0_SAMPLE>;
clock-names = "biu", "ciu", "ciu_drv", "ciu_sample";
clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
fifo-depth = <0x100>;
interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
resets = <&cru SRST_SDIO0>;

2
arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
View File

@ -457,7 +457,7 @@
assigned-clocks = <&cru SCLK_PCIEPHY_REF>;
assigned-clock-parents = <&cru SCLK_PCIEPHY_REF100M>;
assigned-clock-rates = <100000000>;
ep-gpios = <&gpio3 RK_PB5 GPIO_ACTIVE_HIGH>;
ep-gpios = <&gpio2 RK_PA4 GPIO_ACTIVE_HIGH>;
num-lanes = <4>;
pinctrl-names = "default";
pinctrl-0 = <&pcie_clkreqn_cpm>;

4
arch/arm64/boot/dts/rockchip/rk3399.dtsi
View File

@ -1739,8 +1739,8 @@
compatible = "rockchip,rk3399-edp";
reg = <0x0 0xff970000 0x0 0x8000>;
interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH 0>;
clocks = <&cru PCLK_EDP>, <&cru PCLK_EDP_CTRL>;
clock-names = "dp", "pclk";
clocks = <&cru PCLK_EDP>, <&cru PCLK_EDP_CTRL>, <&cru PCLK_VIO_GRF>;
clock-names = "dp", "pclk", "grf";
pinctrl-names = "default";
pinctrl-0 = <&edp_hpd>;
power-domains = <&power RK3399_PD_EDP>;

2
arch/arm64/include/asm/cputype.h
View File

@ -20,7 +20,7 @@
#define MPIDR_UP_BITMASK (0x1 << 30)
#define MPIDR_MT_BITMASK (0x1 << 24)
#define MPIDR_HWID_BITMASK 0xff00ffffff
#define MPIDR_HWID_BITMASK UL(0xff00ffffff)
#define MPIDR_LEVEL_BITS_SHIFT 3
#define MPIDR_LEVEL_BITS (1 << MPIDR_LEVEL_BITS_SHIFT)

2
arch/arm64/include/asm/hugetlb.h
View File

@ -22,7 +22,7 @@
static inline pte_t huge_ptep_get(pte_t *ptep)
{
return *ptep;
return READ_ONCE(*ptep);
}

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