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Merge branch 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu into for-3.11

Browse Source 
This is to receive percpu_refcount which will replace atomic_t
reference count in cgroup_subsys_state.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2013-06-13 19:38:26 -07:00
commit 2b0e53a7c8
1043 changed files with 13663 additions and 7518 deletions
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2
Documentation/devicetree/bindings/net/macb.txt
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@ -4,7 +4,7 @@ Required properties:
- compatible: Should be "cdns,[<chip>-]{macb|gem}"
Use "cdns,at91sam9260-macb" Atmel at91sam9260 and at91sam9263 SoCs.
Use "cdns,at32ap7000-macb" for other 10/100 usage or use the generic form: "cdns,macb".
Use "cnds,pc302-gem" for Picochip picoXcell pc302 and later devices based on
Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on
the Cadence GEM, or the generic form: "cdns,gem".
- reg: Address and length of the register set for the device
- interrupts: Should contain macb interrupt

0
Documentation/devicetree/bindings/drm/exynos/hdmi.txt → Documentation/devicetree/bindings/video/exynos_hdmi.txt
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0
Documentation/devicetree/bindings/drm/exynos/hdmiddc.txt → Documentation/devicetree/bindings/video/exynos_hdmiddc.txt
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0
Documentation/devicetree/bindings/drm/exynos/hdmiphy.txt → Documentation/devicetree/bindings/video/exynos_hdmiphy.txt
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0
Documentation/devicetree/bindings/drm/exynos/mixer.txt → Documentation/devicetree/bindings/video/exynos_mixer.txt
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25
Documentation/devicetree/bindings/video/simple-framebuffer.txt Normal file
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@ -0,0 +1,25 @@
Simple Framebuffer
A simple frame-buffer describes a raw memory region that may be rendered to,
with the assumption that the display hardware has already been set up to scan
out from that buffer.
Required properties:
- compatible: "simple-framebuffer"
- reg: Should contain the location and size of the framebuffer memory.
- width: The width of the framebuffer in pixels.
- height: The height of the framebuffer in pixels.
- stride: The number of bytes in each line of the framebuffer.
- format: The format of the framebuffer surface. Valid values are:
- r5g6b5 (16-bit pixels, d[15:11]=r, d[10:5]=g, d[4:0]=b).
Example:
framebuffer {
compatible = "simple-framebuffer";
reg = <0x1d385000 (1600 * 1200 * 2)>;
width = <1600>;
height = <1200>;
stride = <(1600 * 2)>;
format = "r5g6b5";
};

8
Documentation/devicetree/usage-model.txt
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@ -191,9 +191,11 @@ Linux it will look something like this:
};
The bootargs property contains the kernel arguments, and the initrd-*
properties define the address and size of an initrd blob. The
chosen node may also optionally contain an arbitrary number of
additional properties for platform-specific configuration data.
properties define the address and size of an initrd blob. Note that
initrd-end is the first address after the initrd image, so this doesn't
match the usual semantic of struct resource. The chosen node may also
optionally contain an arbitrary number of additional properties for
platform-specific configuration data.
During early boot, the architecture setup code calls of_scan_flat_dt()
several times with different helper callbacks to parse device tree

21
Documentation/kernel-parameters.txt
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@ -3005,6 +3005,27 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
Force threading of all interrupt handlers except those
marked explicitly IRQF_NO_THREAD.
tmem [KNL,XEN]
Enable the Transcendent memory driver if built-in.
tmem.cleancache=0|1 [KNL, XEN]
Default is on (1). Disable the usage of the cleancache
API to send anonymous pages to the hypervisor.
tmem.frontswap=0|1 [KNL, XEN]
Default is on (1). Disable the usage of the frontswap
API to send swap pages to the hypervisor. If disabled
the selfballooning and selfshrinking are force disabled.
tmem.selfballooning=0|1 [KNL, XEN]
Default is on (1). Disable the driving of swap pages
to the hypervisor.
tmem.selfshrinking=0|1 [KNL, XEN]
Default is on (1). Partial swapoff that immediately
transfers pages from Xen hypervisor back to the
kernel based on different criteria.
topology= [S390]
Format: {off | on}
Specify if the kernel should make use of the cpu

202
Documentation/kernel-per-CPU-kthreads.txt Normal file
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@ -0,0 +1,202 @@
REDUCING OS JITTER DUE TO PER-CPU KTHREADS
This document lists per-CPU kthreads in the Linux kernel and presents
options to control their OS jitter. Note that non-per-CPU kthreads are
not listed here. To reduce OS jitter from non-per-CPU kthreads, bind
them to a "housekeeping" CPU dedicated to such work.
REFERENCES
o Documentation/IRQ-affinity.txt: Binding interrupts to sets of CPUs.
o Documentation/cgroups: Using cgroups to bind tasks to sets of CPUs.
o man taskset: Using the taskset command to bind tasks to sets
of CPUs.
o man sched_setaffinity: Using the sched_setaffinity() system
call to bind tasks to sets of CPUs.
o /sys/devices/system/cpu/cpuN/online: Control CPU N's hotplug state,
writing "0" to offline and "1" to online.
o In order to locate kernel-generated OS jitter on CPU N:
cd /sys/kernel/debug/tracing
echo 1 > max_graph_depth # Increase the "1" for more detail
echo function_graph > current_tracer
# run workload
cat per_cpu/cpuN/trace
KTHREADS
Name: ehca_comp/%u
Purpose: Periodically process Infiniband-related work.
To reduce its OS jitter, do any of the following:
1. Don't use eHCA Infiniband hardware, instead choosing hardware
that does not require per-CPU kthreads. This will prevent these
kthreads from being created in the first place. (This will
work for most people, as this hardware, though important, is
relatively old and is produced in relatively low unit volumes.)
2. Do all eHCA-Infiniband-related work on other CPUs, including
interrupts.
3. Rework the eHCA driver so that its per-CPU kthreads are
provisioned only on selected CPUs.
Name: irq/%d-%s
Purpose: Handle threaded interrupts.
To reduce its OS jitter, do the following:
1. Use irq affinity to force the irq threads to execute on
some other CPU.
Name: kcmtpd_ctr_%d
Purpose: Handle Bluetooth work.
To reduce its OS jitter, do one of the following:
1. Don't use Bluetooth, in which case these kthreads won't be
created in the first place.
2. Use irq affinity to force Bluetooth-related interrupts to
occur on some other CPU and furthermore initiate all
Bluetooth activity on some other CPU.
Name: ksoftirqd/%u
Purpose: Execute softirq handlers when threaded or when under heavy load.
To reduce its OS jitter, each softirq vector must be handled
separately as follows:
TIMER_SOFTIRQ: Do all of the following:
1. To the extent possible, keep the CPU out of the kernel when it
is non-idle, for example, by avoiding system calls and by forcing
both kernel threads and interrupts to execute elsewhere.
2. Build with CONFIG_HOTPLUG_CPU=y. After boot completes, force
the CPU offline, then bring it back online. This forces
recurring timers to migrate elsewhere. If you are concerned
with multiple CPUs, force them all offline before bringing the
first one back online. Once you have onlined the CPUs in question,
do not offline any other CPUs, because doing so could force the
timer back onto one of the CPUs in question.
NET_TX_SOFTIRQ and NET_RX_SOFTIRQ: Do all of the following:
1. Force networking interrupts onto other CPUs.
2. Initiate any network I/O on other CPUs.
3. Once your application has started, prevent CPU-hotplug operations
from being initiated from tasks that might run on the CPU to
be de-jittered. (It is OK to force this CPU offline and then
bring it back online before you start your application.)
BLOCK_SOFTIRQ: Do all of the following:
1. Force block-device interrupts onto some other CPU.
2. Initiate any block I/O on other CPUs.
3. Once your application has started, prevent CPU-hotplug operations
from being initiated from tasks that might run on the CPU to
be de-jittered. (It is OK to force this CPU offline and then
bring it back online before you start your application.)
BLOCK_IOPOLL_SOFTIRQ: Do all of the following:
1. Force block-device interrupts onto some other CPU.
2. Initiate any block I/O and block-I/O polling on other CPUs.
3. Once your application has started, prevent CPU-hotplug operations
from being initiated from tasks that might run on the CPU to
be de-jittered. (It is OK to force this CPU offline and then
bring it back online before you start your application.)
TASKLET_SOFTIRQ: Do one or more of the following:
1. Avoid use of drivers that use tasklets. (Such drivers will contain
calls to things like tasklet_schedule().)
2. Convert all drivers that you must use from tasklets to workqueues.
3. Force interrupts for drivers using tasklets onto other CPUs,
and also do I/O involving these drivers on other CPUs.
SCHED_SOFTIRQ: Do all of the following:
1. Avoid sending scheduler IPIs to the CPU to be de-jittered,
for example, ensure that at most one runnable kthread is present
on that CPU. If a thread that expects to run on the de-jittered
CPU awakens, the scheduler will send an IPI that can result in
a subsequent SCHED_SOFTIRQ.
2. Build with CONFIG_RCU_NOCB_CPU=y, CONFIG_RCU_NOCB_CPU_ALL=y,
CONFIG_NO_HZ_FULL=y, and, in addition, ensure that the CPU
to be de-jittered is marked as an adaptive-ticks CPU using the
"nohz_full=" boot parameter. This reduces the number of
scheduler-clock interrupts that the de-jittered CPU receives,
minimizing its chances of being selected to do the load balancing
work that runs in SCHED_SOFTIRQ context.
3. To the extent possible, keep the CPU out of the kernel when it
is non-idle, for example, by avoiding system calls and by
forcing both kernel threads and interrupts to execute elsewhere.
This further reduces the number of scheduler-clock interrupts
received by the de-jittered CPU.
HRTIMER_SOFTIRQ: Do all of the following:
1. To the extent possible, keep the CPU out of the kernel when it
is non-idle. For example, avoid system calls and force both
kernel threads and interrupts to execute elsewhere.
2. Build with CONFIG_HOTPLUG_CPU=y. Once boot completes, force the
CPU offline, then bring it back online. This forces recurring
timers to migrate elsewhere. If you are concerned with multiple
CPUs, force them all offline before bringing the first one
back online. Once you have onlined the CPUs in question, do not
offline any other CPUs, because doing so could force the timer
back onto one of the CPUs in question.
RCU_SOFTIRQ: Do at least one of the following:
1. Offload callbacks and keep the CPU in either dyntick-idle or
adaptive-ticks state by doing all of the following:
a. Build with CONFIG_RCU_NOCB_CPU=y, CONFIG_RCU_NOCB_CPU_ALL=y,
CONFIG_NO_HZ_FULL=y, and, in addition ensure that the CPU
to be de-jittered is marked as an adaptive-ticks CPU using
the "nohz_full=" boot parameter. Bind the rcuo kthreads
to housekeeping CPUs, which can tolerate OS jitter.
b. To the extent possible, keep the CPU out of the kernel
when it is non-idle, for example, by avoiding system
calls and by forcing both kernel threads and interrupts
to execute elsewhere.
2. Enable RCU to do its processing remotely via dyntick-idle by
doing all of the following:
a. Build with CONFIG_NO_HZ=y and CONFIG_RCU_FAST_NO_HZ=y.
b. Ensure that the CPU goes idle frequently, allowing other
CPUs to detect that it has passed through an RCU quiescent
state. If the kernel is built with CONFIG_NO_HZ_FULL=y,
userspace execution also allows other CPUs to detect that
the CPU in question has passed through a quiescent state.
c. To the extent possible, keep the CPU out of the kernel
when it is non-idle, for example, by avoiding system
calls and by forcing both kernel threads and interrupts
to execute elsewhere.
Name: rcuc/%u
Purpose: Execute RCU callbacks in CONFIG_RCU_BOOST=y kernels.
To reduce its OS jitter, do at least one of the following:
1. Build the kernel with CONFIG_PREEMPT=n. This prevents these
kthreads from being created in the first place, and also obviates
the need for RCU priority boosting. This approach is feasible
for workloads that do not require high degrees of responsiveness.
2. Build the kernel with CONFIG_RCU_BOOST=n. This prevents these
kthreads from being created in the first place. This approach
is feasible only if your workload never requires RCU priority
boosting, for example, if you ensure frequent idle time on all
CPUs that might execute within the kernel.
3. Build with CONFIG_RCU_NOCB_CPU=y and CONFIG_RCU_NOCB_CPU_ALL=y,
which offloads all RCU callbacks to kthreads that can be moved
off of CPUs susceptible to OS jitter. This approach prevents the
rcuc/%u kthreads from having any work to do, so that they are
never awakened.
4. Ensure that the CPU never enters the kernel, and, in particular,
avoid initiating any CPU hotplug operations on this CPU. This is
another way of preventing any callbacks from being queued on the
CPU, again preventing the rcuc/%u kthreads from having any work
to do.
Name: rcuob/%d, rcuop/%d, and rcuos/%d
Purpose: Offload RCU callbacks from the corresponding CPU.
To reduce its OS jitter, do at least one of the following:
1. Use affinity, cgroups, or other mechanism to force these kthreads
to execute on some other CPU.
2. Build with CONFIG_RCU_NOCB_CPUS=n, which will prevent these
kthreads from being created in the first place. However, please
note that this will not eliminate OS jitter, but will instead
shift it to RCU_SOFTIRQ.
Name: watchdog/%u
Purpose: Detect software lockups on each CPU.
To reduce its OS jitter, do at least one of the following:
1. Build with CONFIG_LOCKUP_DETECTOR=n, which will prevent these
kthreads from being created in the first place.
2. Echo a zero to /proc/sys/kernel/watchdog to disable the
watchdog timer.
3. Echo a large number of /proc/sys/kernel/watchdog_thresh in
order to reduce the frequency of OS jitter due to the watchdog
timer down to a level that is acceptable for your workload.

15
Documentation/power/devices.txt
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@ -268,7 +268,7 @@ situations.
System Power Management Phases
------------------------------
Suspending or resuming the system is done in several phases. Different phases
are used for standby or memory sleep states ("suspend-to-RAM") and the
are used for freeze, standby, and memory sleep states ("suspend-to-RAM") and the
hibernation state ("suspend-to-disk"). Each phase involves executing callbacks
for every device before the next phase begins. Not all busses or classes
support all these callbacks and not all drivers use all the callbacks. The
@ -309,7 +309,8 @@ execute the corresponding method from dev->driver->pm instead if there is one.
Entering System Suspend
-----------------------
When the system goes into the standby or memory sleep state, the phases are:
When the system goes into the freeze, standby or memory sleep state,
the phases are:
prepare, suspend, suspend_late, suspend_noirq.
@ -368,7 +369,7 @@ the devices that were suspended.
Leaving System Suspend
----------------------
When resuming from standby or memory sleep, the phases are:
When resuming from freeze, standby or memory sleep, the phases are:
resume_noirq, resume_early, resume, complete.
@ -433,8 +434,8 @@ the system log.
Entering Hibernation
--------------------
Hibernating the system is more complicated than putting it into the standby or
memory sleep state, because it involves creating and saving a system image.
Hibernating the system is more complicated than putting it into the other
sleep states, because it involves creating and saving a system image.
Therefore there are more phases for hibernation, with a different set of
callbacks. These phases always run after tasks have been frozen and memory has
been freed.
@ -485,8 +486,8 @@ image forms an atomic snapshot of the system state.
At this point the system image is saved, and the devices then need to be
prepared for the upcoming system shutdown. This is much like suspending them
before putting the system into the standby or memory sleep state, and the phases
are similar.
before putting the system into the freeze, standby or memory sleep state,
and the phases are similar.
9. The prepare phase is discussed above.

4
Documentation/power/interface.txt
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@ -7,8 +7,8 @@ running. The interface exists in /sys/power/ directory (assuming sysfs
is mounted at /sys).
/sys/power/state controls system power state. Reading from this file
returns what states are supported, which is hard-coded to 'standby'
(Power-On Suspend), 'mem' (Suspend-to-RAM), and 'disk'
returns what states are supported, which is hard-coded to 'freeze',
'standby' (Power-On Suspend), 'mem' (Suspend-to-RAM), and 'disk'
(Suspend-to-Disk).
Writing to this file one of those strings causes the system to

6
Documentation/power/notifiers.txt
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@ -15,8 +15,10 @@ A suspend/hibernation notifier may be used for this purpose.
The subsystems or drivers having such needs can register suspend notifiers that
will be called upon the following events by the PM core:
PM_HIBERNATION_PREPARE The system is going to hibernate or suspend, tasks will
be frozen immediately.
PM_HIBERNATION_PREPARE The system is going to hibernate, tasks will be frozen
immediately. This is different from PM_SUSPEND_PREPARE
below because here we do additional work between notifiers
and drivers freezing.
PM_POST_HIBERNATION The system memory state has been restored from a
hibernation image or an error occurred during

30
Documentation/power/states.txt
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@ -2,12 +2,26 @@
System Power Management States
The kernel supports three power management states generically, though
each is dependent on platform support code to implement the low-level
details for each state. This file describes each state, what they are
The kernel supports four power management states generically, though
one is generic and the other three are dependent on platform support
code to implement the low-level details for each state.
This file describes each state, what they are
commonly called, what ACPI state they map to, and what string to write
to /sys/power/state to enter that state
state: Freeze / Low-Power Idle
ACPI state: S0
String: "freeze"
This state is a generic, pure software, light-weight, low-power state.
It allows more energy to be saved relative to idle by freezing user
space and putting all I/O devices into low-power states (possibly
lower-power than available at run time), such that the processors can
spend more time in their idle states.
This state can be used for platforms without Standby/Suspend-to-RAM
support, or it can be used in addition to Suspend-to-RAM (memory sleep)
to provide reduced resume latency.
State: Standby / Power-On Suspend
ACPI State: S1
@ -22,9 +36,6 @@ We try to put devices in a low-power state equivalent to D1, which
also offers low power savings, but low resume latency. Not all devices
support D1, and those that don't are left on.
A transition from Standby to the On state should take about 1-2
seconds.
State: Suspend-to-RAM
ACPI State: S3
@ -42,9 +53,6 @@ transition back to the On state.
For at least ACPI, STR requires some minimal boot-strapping code to
resume the system from STR. This may be true on other platforms.
A transition from Suspend-to-RAM to the On state should take about
3-5 seconds.
State: Suspend-to-disk
ACPI State: S4
@ -74,7 +82,3 @@ low-power state (like ACPI S4), or it may simply power down. Powering
down offers greater savings, and allows this mechanism to work on any
system. However, entering a real low-power state allows the user to
trigger wake up events (e.g. pressing a key or opening a laptop lid).
A transition from Suspend-to-Disk to the On state should take about 30
seconds, though it's typically a bit more with the current
implementation.

27
Documentation/powerpc/transactional_memory.txt
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@ -147,6 +147,25 @@ Example signal handler:
fix_the_problem(ucp->dar);
}
When in an active transaction that takes a signal, we need to be careful with
the stack. It's possible that the stack has moved back up after the tbegin.
The obvious case here is when the tbegin is called inside a function that
returns before a tend. In this case, the stack is part of the checkpointed
transactional memory state. If we write over this non transactionally or in
suspend, we are in trouble because if we get a tm abort, the program counter and
stack pointer will be back at the tbegin but our in memory stack won't be valid
anymore.
To avoid this, when taking a signal in an active transaction, we need to use
the stack pointer from the checkpointed state, rather than the speculated
state. This ensures that the signal context (written tm suspended) will be
written below the stack required for the rollback. The transaction is aborted
becuase of the treclaim, so any memory written between the tbegin and the
signal will be rolled back anyway.
For signals taken in non-TM or suspended mode, we use the
normal/non-checkpointed stack pointer.
Failure cause codes used by kernel
==================================
@ -155,14 +174,18 @@ These are defined in <asm/reg.h>, and distinguish different reasons why the
kernel aborted a transaction:
TM_CAUSE_RESCHED Thread was rescheduled.
TM_CAUSE_TLBI Software TLB invalide.
TM_CAUSE_FAC_UNAV FP/VEC/VSX unavailable trap.
TM_CAUSE_SYSCALL Currently unused; future syscalls that must abort
transactions for consistency will use this.
TM_CAUSE_SIGNAL Signal delivered.
TM_CAUSE_MISC Currently unused.
TM_CAUSE_ALIGNMENT Alignment fault.
TM_CAUSE_EMULATE Emulation that touched memory.
These can be checked by the user program's abort handler as TEXASR[0:7].
These can be checked by the user program's abort handler as TEXASR[0:7]. If
bit 7 is set, it indicates that the error is consider persistent. For example
a TM_CAUSE_ALIGNMENT will be persistent while a TM_CAUSE_RESCHED will not.q
GDB
===

128
Documentation/rapidio/rapidio.txt
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@ -79,20 +79,63 @@ master port that is used to communicate with devices within the network.
In order to initialize the RapidIO subsystem, a platform must initialize and
register at least one master port within the RapidIO network. To register mport
within the subsystem controller driver initialization code calls function
rio_register_mport() for each available master port. After all active master
ports are registered with a RapidIO subsystem, the rio_init_mports() routine
is called to perform enumeration and discovery.
rio_register_mport() for each available master port.
In the current PowerPC-based implementation a subsys_initcall() is specified to
perform controller initialization and mport registration. At the end it directly
calls rio_init_mports() to execute RapidIO enumeration and discovery.
RapidIO subsystem uses subsys_initcall() or device_initcall() to perform
controller initialization (depending on controller device type).
After all active master ports are registered with a RapidIO subsystem,
an enumeration and/or discovery routine may be called automatically or
by user-space command.
4. Enumeration and Discovery
----------------------------
When rio_init_mports() is called it scans a list of registered master ports and
calls an enumeration or discovery routine depending on the configured role of a
master port: host or agent.
4.1 Overview
------------
RapidIO subsystem configuration options allow users to specify enumeration and
discovery methods as statically linked components or loadable modules.
An enumeration/discovery method implementation and available input parameters
define how any given method can be attached to available RapidIO mports:
simply to all available mports OR individually to the specified mport device.
Depending on selected enumeration/discovery build configuration, there are
several methods to initiate an enumeration and/or discovery process:
(a) Statically linked enumeration and discovery process can be started
automatically during kernel initialization time using corresponding module
parameters. This was the original method used since introduction of RapidIO
subsystem. Now this method relies on enumerator module parameter which is
'rio-scan.scan' for existing basic enumeration/discovery method.
When automatic start of enumeration/discovery is used a user has to ensure
that all discovering endpoints are started before the enumerating endpoint
and are waiting for enumeration to be completed.
Configuration option CONFIG_RAPIDIO_DISC_TIMEOUT defines time that discovering
endpoint waits for enumeration to be completed. If the specified timeout
expires the discovery process is terminated without obtaining RapidIO network
information. NOTE: a timed out discovery process may be restarted later using
a user-space command as it is described later if the given endpoint was
enumerated successfully.
(b) Statically linked enumeration and discovery process can be started by
a command from user space. This initiation method provides more flexibility
for a system startup compared to the option (a) above. After all participating
endpoints have been successfully booted, an enumeration process shall be
started first by issuing a user-space command, after an enumeration is
completed a discovery process can be started on all remaining endpoints.
(c) Modular enumeration and discovery process can be started by a command from
user space. After an enumeration/discovery module is loaded, a network scan
process can be started by issuing a user-space command.
Similar to the option (b) above, an enumerator has to be started first.
(d) Modular enumeration and discovery process can be started by a module
initialization routine. In this case an enumerating module shall be loaded
first.
When a network scan process is started it calls an enumeration or discovery
routine depending on the configured role of a master port: host or agent.
Enumeration is performed by a master port if it is configured as a host port by
assigning a host device ID greater than or equal to zero. A host device ID is
@ -104,8 +147,58 @@ for it.
The enumeration and discovery routines use RapidIO maintenance transactions
to access the configuration space of devices.
The enumeration process is implemented according to the enumeration algorithm
outlined in the RapidIO Interconnect Specification: Annex I [1].
4.2 Automatic Start of Enumeration and Discovery
------------------------------------------------
Automatic enumeration/discovery start method is applicable only to built-in
enumeration/discovery RapidIO configuration selection. To enable automatic
enumeration/discovery start by existing basic enumerator method set use boot
command line parameter "rio-scan.scan=1".
This configuration requires synchronized start of all RapidIO endpoints that
form a network which will be enumerated/discovered. Discovering endpoints have
to be started before an enumeration starts to ensure that all RapidIO
controllers have been initialized and are ready to be discovered. Configuration
parameter CONFIG_RAPIDIO_DISC_TIMEOUT defines time (in seconds) which
a discovering endpoint will wait for enumeration to be completed.
When automatic enumeration/discovery start is selected, basic method's
initialization routine calls rio_init_mports() to perform enumeration or
discovery for all known mport devices.
Depending on RapidIO network size and configuration this automatic
enumeration/discovery start method may be difficult to use due to the
requirement for synchronized start of all endpoints.
4.3 User-space Start of Enumeration and Discovery
-------------------------------------------------
User-space start of enumeration and discovery can be used with built-in and
modular build configurations. For user-space controlled start RapidIO subsystem
creates the sysfs write-only attribute file '/sys/bus/rapidio/scan'. To initiate
an enumeration or discovery process on specific mport device, a user needs to
write mport_ID (not RapidIO destination ID) into that file. The mport_ID is a
sequential number (0 ... RIO_MAX_MPORTS) assigned during mport device
registration. For example for machine with single RapidIO controller, mport_ID
for that controller always will be 0.
To initiate RapidIO enumeration/discovery on all available mports a user may
write '-1' (or RIO_MPORT_ANY) into the scan attribute file.
4.4 Basic Enumeration Method
----------------------------
This is an original enumeration/discovery method which is available since
first release of RapidIO subsystem code. The enumeration process is
implemented according to the enumeration algorithm outlined in the RapidIO
Interconnect Specification: Annex I [1].
This method can be configured as statically linked or loadable module.
The method's single parameter "scan" allows to trigger the enumeration/discovery
process from module initialization routine.
This enumeration/discovery method can be started only once and does not support
unloading if it is built as a module.
The enumeration process traverses the network using a recursive depth-first
algorithm. When a new device is found, the enumerator takes ownership of that
@ -160,6 +253,19 @@ time period. If this wait time period expires before enumeration is completed,
an agent skips RapidIO discovery and continues with remaining kernel
initialization.
4.5 Adding New Enumeration/Discovery Method
-------------------------------------------
RapidIO subsystem code organization allows addition of new enumeration/discovery
methods as new configuration options without significant impact to to the core
RapidIO code.
A new enumeration/discovery method has to be attached to one or more mport
devices before an enumeration/discovery process can be started. Normally,
method's module initialization routine calls rio_register_scan() to attach
an enumerator to a specified mport device (or devices). The basic enumerator
implementation demonstrates this process.
5. References
-------------

17
Documentation/rapidio/sysfs.txt
View File

@ -88,3 +88,20 @@ that exports additional attributes.
IDT_GEN2:
errlog - reads contents of device error log until it is empty.
5. RapidIO Bus Attributes
-------------------------
RapidIO bus subdirectory /sys/bus/rapidio implements the following bus-specific
attribute:
scan - allows to trigger enumeration discovery process from user space. This
is a write-only attribute. To initiate an enumeration or discovery
process on specific mport device, a user needs to write mport_ID (not
RapidIO destination ID) into this file. The mport_ID is a sequential
number (0 ... RIO_MAX_MPORTS) assigned to the mport device.
For example, for a machine with a single RapidIO controller, mport_ID
for that controller always will be 0.
To initiate RapidIO enumeration/discovery on all available mports
a user must write '-1' (or RIO_MPORT_ANY) into this attribute file.

56
MAINTAINERS
View File

@ -3322,11 +3322,12 @@ F: drivers/net/wan/dlci.c
F: drivers/net/wan/sdla.c
FRAMEBUFFER LAYER
M: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
M: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
M: Tomi Valkeinen <tomi.valkeinen@ti.com>
L: linux-fbdev@vger.kernel.org
W: http://linux-fbdev.sourceforge.net/
Q: http://patchwork.kernel.org/project/linux-fbdev/list/
T: git git://github.com/schandinat/linux-2.6.git fbdev-next
T: git git://git.kernel.org/pub/scm/linux/kernel/git/plagnioj/linux-fbdev.git
S: Maintained
F: Documentation/fb/
F: Documentation/devicetree/bindings/fb/
@ -3865,9 +3866,16 @@ M: K. Y. Srinivasan <kys@microsoft.com>
M: Haiyang Zhang <haiyangz@microsoft.com>
L: devel@linuxdriverproject.org
S: Maintained
F: drivers/hv/
F: arch/x86/include/asm/mshyperv.h
F: arch/x86/include/uapi/asm/hyperv.h
F: arch/x86/kernel/cpu/mshyperv.c
F: drivers/hid/hid-hyperv.c
F: drivers/hv/
F: drivers/net/hyperv/
F: drivers/scsi/storvsc_drv.c
F: drivers/video/hyperv_fb.c
F: include/linux/hyperv.h
F: tools/hv/
I2C OVER PARALLEL PORT
M: Jean Delvare <khali@linux-fr.org>
@ -4641,12 +4649,13 @@ F: include/linux/sunrpc/
F: include/uapi/linux/sunrpc/
KERNEL VIRTUAL MACHINE (KVM)
M: Marcelo Tosatti <mtosatti@redhat.com>
M: Gleb Natapov <gleb@redhat.com>
M: Paolo Bonzini <pbonzini@redhat.com>
L: kvm@vger.kernel.org
W: http://kvm.qumranet.com
W: http://linux-kvm.org
S: Supported
F: Documentation/*/kvm.txt
F: Documentation/*/kvm*.txt
F: Documentation/virtual/kvm/
F: arch/*/kvm/
F: arch/*/include/asm/kvm*
F: include/linux/kvm*
@ -4976,6 +4985,13 @@ S: Maintained
F: Documentation/hwmon/lm90
F: drivers/hwmon/lm90.c
LM95234 HARDWARE MONITOR DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: lm-sensors@lm-sensors.org
S: Maintained
F: Documentation/hwmon/lm95234
F: drivers/hwmon/lm95234.c
LME2510 MEDIA DRIVER
M: Malcolm Priestley <tvboxspy@gmail.com>
L: linux-media@vger.kernel.org
@ -5509,18 +5525,18 @@ F: Documentation/networking/s2io.txt
F: Documentation/networking/vxge.txt
F: drivers/net/ethernet/neterion/
NETFILTER/IPTABLES/IPCHAINS
P: Harald Welte
P: Jozsef Kadlecsik
NETFILTER/IPTABLES
M: Pablo Neira Ayuso <pablo@netfilter.org>
M: Patrick McHardy <kaber@trash.net>
M: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
L: netfilter-devel@vger.kernel.org
L: netfilter@vger.kernel.org
L: coreteam@netfilter.org
W: http://www.netfilter.org/
W: http://www.iptables.org/
T: git git://1984.lsi.us.es/nf
T: git git://1984.lsi.us.es/nf-next
Q: http://patchwork.ozlabs.org/project/netfilter-devel/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git
S: Supported
F: include/linux/netfilter*
F: include/linux/netfilter/
@ -6069,9 +6085,18 @@ L: linux-parisc@vger.kernel.org
W: http://www.parisc-linux.org/
Q: http://patchwork.kernel.org/project/linux-parisc/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
S: Maintained
F: arch/parisc/
F: Documentation/parisc/
F: drivers/parisc/
F: drivers/char/agp/parisc-agp.c
F: drivers/input/serio/gscps2.c
F: drivers/parport/parport_gsc.*
F: drivers/tty/serial/8250/8250_gsc.c
F: drivers/video/sti*
F: drivers/video/console/sti*
F: drivers/video/logo/logo_parisc*
PC87360 HARDWARE MONITORING DRIVER
M: Jim Cromie <jim.cromie@gmail.com>
@ -7854,7 +7879,7 @@ L: linux-scsi@vger.kernel.org
L: target-devel@vger.kernel.org
L: http://groups.google.com/group/linux-iscsi-target-dev
W: http://www.linux-iscsi.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/lio-core.git master
T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master
S: Supported
F: drivers/target/
F: include/target/
@ -8182,6 +8207,13 @@ F: drivers/mmc/host/sh_mobile_sdhi.c
F: include/linux/mmc/tmio.h
F: include/linux/mmc/sh_mobile_sdhi.h
TMP401 HARDWARE MONITOR DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: lm-sensors@lm-sensors.org
S: Maintained
F: Documentation/hwmon/tmp401
F: drivers/hwmon/tmp401.c
TMPFS (SHMEM FILESYSTEM)
M: Hugh Dickins <hughd@google.com>
L: linux-mm@kvack.org

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 10
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc4
NAME = Unicycling Gorilla
# *DOCUMENTATION*

3
arch/Kconfig
View File

@ -213,6 +213,9 @@ config USE_GENERIC_SMP_HELPERS
config GENERIC_SMP_IDLE_THREAD
bool
config GENERIC_IDLE_POLL_SETUP
bool
# Select if arch init_task initializer is different to init/init_task.c
config ARCH_INIT_TASK
bool

2
arch/arc/boot/dts/abilis_tb100_dvk.dts
View File

@ -37,7 +37,7 @@
soc100 {
uart@FF100000 {
pinctrl-names = "abilis,simple-default";
pinctrl-names = "default";
pinctrl-0 = <&pctl_uart0>;
};
ethernet@FE100000 {

2
arch/arc/boot/dts/abilis_tb101_dvk.dts
View File

@ -37,7 +37,7 @@
soc100 {
uart@FF100000 {
pinctrl-names = "abilis,simple-default";
pinctrl-names = "default";
pinctrl-0 = <&pctl_uart0>;
};
ethernet@FE100000 {

6
arch/arc/boot/dts/abilis_tb10x.dtsi
View File

@ -88,8 +88,7 @@
};
uart@FF100000 {
compatible = "snps,dw-apb-uart",
"abilis,simple-pinctrl";
compatible = "snps,dw-apb-uart";
reg = <0xFF100000 0x100>;
clock-frequency = <166666666>;
interrupts = <25 1>;
@ -184,8 +183,7 @@
#address-cells = <1>;
#size-cells = <0>;
cell-index = <1>;
compatible = "abilis,tb100-spi",
"abilis,simple-pinctrl";
compatible = "abilis,tb100-spi";
num-cs = <2>;
reg = <0xFE011000 0x20>;
interrupt-parent = <&tb10x_ictl>;

6
arch/arc/include/asm/cacheflush.h
View File

@ -93,14 +93,16 @@ static inline int cache_is_vipt_aliasing(void)
#endif
}
#define CACHE_COLOR(addr) (((unsigned long)(addr) >> (PAGE_SHIFT)) & 3)
#define CACHE_COLOR(addr) (((unsigned long)(addr) >> (PAGE_SHIFT)) & 1)
/*
* checks if two addresses (after page aligning) index into same cache set
*/
#define addr_not_cache_congruent(addr1, addr2) \
({ \
cache_is_vipt_aliasing() ? \
(CACHE_COLOR(addr1) != CACHE_COLOR(addr2)) : 0 \
(CACHE_COLOR(addr1) != CACHE_COLOR(addr2)) : 0; \
})
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { \

9
arch/arc/include/asm/page.h
View File

@ -19,13 +19,6 @@
#define clear_page(paddr) memset((paddr), 0, PAGE_SIZE)
#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE)
#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING
#define clear_user_page(addr, vaddr, pg) clear_page(addr)
#define copy_user_page(vto, vfrom, vaddr, pg) copy_page(vto, vfrom)
#else /* VIPT aliasing dcache */
struct vm_area_struct;
struct page;
@ -35,8 +28,6 @@ void copy_user_highpage(struct page *to, struct page *from,
unsigned long u_vaddr, struct vm_area_struct *vma);
void clear_user_page(void *to, unsigned long u_vaddr, struct page *page);
#endif /* CONFIG_ARC_CACHE_VIPT_ALIASING */
#undef STRICT_MM_TYPECHECKS
#ifdef STRICT_MM_TYPECHECKS

26
arch/arc/include/asm/pgtable.h
View File

@ -57,9 +57,9 @@
#define _PAGE_ACCESSED (1<<1) /* Page is accessed (S) */
#define _PAGE_CACHEABLE (1<<2) /* Page is cached (H) */
#define _PAGE_EXECUTE (1<<3) /* Page has user execute perm (H) */
#define _PAGE_WRITE (1<<4) /* Page has user write perm (H) */
#define _PAGE_READ (1<<5) /* Page has user read perm (H) */
#define _PAGE_U_EXECUTE (1<<3) /* Page has user execute perm (H) */
#define _PAGE_U_WRITE (1<<4) /* Page has user write perm (H) */
#define _PAGE_U_READ (1<<5) /* Page has user read perm (H) */
#define _PAGE_K_EXECUTE (1<<6) /* Page has kernel execute perm (H) */
#define _PAGE_K_WRITE (1<<7) /* Page has kernel write perm (H) */
#define _PAGE_K_READ (1<<8) /* Page has kernel perm (H) */
@ -72,9 +72,9 @@
/* PD1 */
#define _PAGE_CACHEABLE (1<<0) /* Page is cached (H) */
#define _PAGE_EXECUTE (1<<1) /* Page has user execute perm (H) */
#define _PAGE_WRITE (1<<2) /* Page has user write perm (H) */
#define _PAGE_READ (1<<3) /* Page has user read perm (H) */
#define _PAGE_U_EXECUTE (1<<1) /* Page has user execute perm (H) */
#define _PAGE_U_WRITE (1<<2) /* Page has user write perm (H) */
#define _PAGE_U_READ (1<<3) /* Page has user read perm (H) */
#define _PAGE_K_EXECUTE (1<<4) /* Page has kernel execute perm (H) */
#define _PAGE_K_WRITE (1<<5) /* Page has kernel write perm (H) */
#define _PAGE_K_READ (1<<6) /* Page has kernel perm (H) */
@ -93,7 +93,8 @@
#endif
/* Kernel allowed all permissions for all pages */
#define _K_PAGE_PERMS (_PAGE_K_EXECUTE | _PAGE_K_WRITE | _PAGE_K_READ)
#define _K_PAGE_PERMS (_PAGE_K_EXECUTE | _PAGE_K_WRITE | _PAGE_K_READ | \
_PAGE_GLOBAL | _PAGE_PRESENT)
#ifdef CONFIG_ARC_CACHE_PAGES
#define _PAGE_DEF_CACHEABLE _PAGE_CACHEABLE
@ -106,7 +107,11 @@
* -by default cached, unless config otherwise
* -present in memory
*/
#define ___DEF (_PAGE_PRESENT | _K_PAGE_PERMS | _PAGE_DEF_CACHEABLE)
#define ___DEF (_PAGE_PRESENT | _PAGE_DEF_CACHEABLE)
#define _PAGE_READ (_PAGE_U_READ | _PAGE_K_READ)
#define _PAGE_WRITE (_PAGE_U_WRITE | _PAGE_K_WRITE)
#define _PAGE_EXECUTE (_PAGE_U_EXECUTE | _PAGE_K_EXECUTE)
/* Set of bits not changed in pte_modify */
#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED)
@ -125,11 +130,10 @@
* kernel vaddr space - visible in all addr spaces, but kernel mode only
* Thus Global, all-kernel-access, no-user-access, cached
*/
#define PAGE_KERNEL __pgprot(___DEF | _PAGE_GLOBAL)
#define PAGE_KERNEL __pgprot(_K_PAGE_PERMS | _PAGE_DEF_CACHEABLE)
/* ioremap */
#define PAGE_KERNEL_NO_CACHE __pgprot(_PAGE_PRESENT | _K_PAGE_PERMS | \
_PAGE_GLOBAL)
#define PAGE_KERNEL_NO_CACHE __pgprot(_K_PAGE_PERMS)
/**************************************************************************
* Mapping of vm_flags (Generic VM) to PTE flags (arch specific)

2
arch/arc/include/asm/tlb.h
View File

@ -16,7 +16,7 @@
/* Masks for actual TLB "PD"s */
#define PTE_BITS_IN_PD0 (_PAGE_GLOBAL | _PAGE_PRESENT)
#define PTE_BITS_IN_PD1 (PAGE_MASK | _PAGE_CACHEABLE | \
_PAGE_EXECUTE | _PAGE_WRITE | _PAGE_READ | \
_PAGE_U_EXECUTE | _PAGE_U_WRITE | _PAGE_U_READ | \
_PAGE_K_EXECUTE | _PAGE_K_WRITE | _PAGE_K_READ)
#ifndef __ASSEMBLY__

23
arch/arc/mm/cache_arc700.c
View File

@ -610,7 +610,7 @@ void __sync_icache_dcache(unsigned long paddr, unsigned long vaddr, int len)
local_irq_save(flags);
__ic_line_inv_vaddr(paddr, vaddr, len);
__dc_line_op(paddr, vaddr, len, OP_FLUSH);
__dc_line_op(paddr, vaddr, len, OP_FLUSH_N_INV);
local_irq_restore(flags);
}
@ -676,6 +676,17 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
flush_cache_all();
}
void flush_anon_page(struct vm_area_struct *vma, struct page *page,
unsigned long u_vaddr)
{
/* TBD: do we really need to clear the kernel mapping */
__flush_dcache_page(page_address(page), u_vaddr);
__flush_dcache_page(page_address(page), page_address(page));
}
#endif
void copy_user_highpage(struct page *to, struct page *from,
unsigned long u_vaddr, struct vm_area_struct *vma)
{
@ -725,16 +736,6 @@ void clear_user_page(void *to, unsigned long u_vaddr, struct page *page)
set_bit(PG_arch_1, &page->flags);
}
void flush_anon_page(struct vm_area_struct *vma, struct page *page,
unsigned long u_vaddr)
{
/* TBD: do we really need to clear the kernel mapping */
__flush_dcache_page(page_address(page), u_vaddr);
__flush_dcache_page(page_address(page), page_address(page));
}
#endif
/**********************************************************************
* Explicit Cache flush request from user space via syscall

3
arch/arc/mm/tlb.c
View File

@ -444,7 +444,8 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long vaddr_unaligned,
* so userspace sees the right data.
* (Avoids the flush for Non-exec + congruent mapping case)
*/
if (vma->vm_flags & VM_EXEC || addr_not_cache_congruent(paddr, vaddr)) {
if ((vma->vm_flags & VM_EXEC) ||
addr_not_cache_congruent(paddr, vaddr)) {
struct page *page = pfn_to_page(pte_pfn(*ptep));
int dirty = test_and_clear_bit(PG_arch_1, &page->flags);

6
arch/arc/mm/tlbex.S
View File

@ -277,7 +277,7 @@ ARC_ENTRY EV_TLBMissI
;----------------------------------------------------------------
; VERIFY_PTE: Check if PTE permissions approp for executing code
cmp_s r2, VMALLOC_START
mov.lo r2, (_PAGE_PRESENT | _PAGE_READ | _PAGE_EXECUTE)
mov.lo r2, (_PAGE_PRESENT | _PAGE_U_READ | _PAGE_U_EXECUTE)
mov.hs r2, (_PAGE_PRESENT | _PAGE_K_READ | _PAGE_K_EXECUTE)
and r3, r0, r2 ; Mask out NON Flag bits from PTE
@ -320,9 +320,9 @@ ARC_ENTRY EV_TLBMissD
mov_s r2, 0
lr r3, [ecr]
btst_s r3, ECR_C_BIT_DTLB_LD_MISS ; Read Access
or.nz r2, r2, _PAGE_READ ; chk for Read flag in PTE
or.nz r2, r2, _PAGE_U_READ ; chk for Read flag in PTE
btst_s r3, ECR_C_BIT_DTLB_ST_MISS ; Write Access
or.nz r2, r2, _PAGE_WRITE ; chk for Write flag in PTE
or.nz r2, r2, _PAGE_U_WRITE ; chk for Write flag in PTE
; Above laddering takes care of XCHG access
; which is both Read and Write

26
arch/arc/plat-tb10x/tb10x.c
View File

@ -34,31 +34,6 @@ static void __init tb10x_platform_init(void)
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static void __init tb10x_platform_late_init(void)
{
struct device_node *dn;
/*
* Pinctrl documentation recommends setting up the iomux here for
* all modules which don't require control over the pins themselves.
* Modules which need this kind of assistance are compatible with
* "abilis,simple-pinctrl", i.e. we can easily iterate over them.
* TODO: Does this recommended method work cleanly with pins required
* by modules?
*/
for_each_compatible_node(dn, NULL, "abilis,simple-pinctrl") {
struct platform_device *pd = of_find_device_by_node(dn);
struct pinctrl *pctl;
pctl = pinctrl_get_select(&pd->dev, "abilis,simple-default");
if (IS_ERR(pctl)) {
int ret = PTR_ERR(pctl);
dev_err(&pd->dev, "Could not set up pinctrl: %d\n",
ret);
}
}
}
static const char *tb10x_compat[] __initdata = {
"abilis,arc-tb10x",
NULL,
@ -67,5 +42,4 @@ static const char *tb10x_compat[] __initdata = {
MACHINE_START(TB10x, "tb10x")
.dt_compat = tb10x_compat,
.init_machine = tb10x_platform_init,
.init_late = tb10x_platform_late_init,
MACHINE_END

3
arch/arm/Kconfig
View File

@ -38,6 +38,7 @@ config ARM
select HAVE_GENERIC_HARDIRQS
select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
select HAVE_IDE if PCI || ISA || PCMCIA
select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZMA
select HAVE_KERNEL_LZO
@ -488,7 +489,7 @@ config ARCH_IXP4XX
config ARCH_DOVE
bool "Marvell Dove"
select ARCH_REQUIRE_GPIOLIB
select CPU_V7
select CPU_PJ4
select GENERIC_CLOCKEVENTS
select MIGHT_HAVE_PCI
select PINCTRL

2
arch/arm/Makefile
View File

@ -309,7 +309,7 @@ define archhelp
echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
echo ' uImage - U-Boot wrapped zImage'
echo ' bootpImage - Combined zImage and initial RAM disk'
echo ' bootpImage - Combined zImage and initial RAM disk'
echo ' (supply initrd image via make variable INITRD=<path>)'
echo '* dtbs - Build device tree blobs for enabled boards'
echo ' install - Install uncompressed kernel'

4
arch/arm/boot/dts/Makefile
View File

@ -177,7 +177,9 @@ dtb-$(CONFIG_ARCH_SPEAR3XX)+= spear300-evb.dtb \
spear320-evb.dtb \
spear320-hmi.dtb
dtb-$(CONFIG_ARCH_SPEAR6XX)+= spear600-evb.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun4i-a10-cubieboard.dtb \
dtb-$(CONFIG_ARCH_SUNXI) += \
sun4i-a10-cubieboard.dtb \
sun4i-a10-mini-xplus.dtb \
sun4i-a10-hackberry.dtb \
sun5i-a13-olinuxino.dtb
dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \

3
arch/arm/boot/dts/armada-370-xp.dtsi
View File

@ -33,7 +33,8 @@
#size-cells = <1>;
compatible = "simple-bus";
interrupt-parent = <&mpic>;
ranges = <0 0 0xd0000000 0x100000>;
ranges = <0 0 0xd0000000 0x0100000 /* internal registers */
0xe0000000 0 0xe0000000 0x8100000 /* PCIe */>;
internal-regs {
compatible = "simple-bus";

7
arch/arm/boot/dts/armada-370.dtsi
View File

@ -29,7 +29,8 @@
};
soc {
ranges = <0 0xd0000000 0x100000>;
ranges = <0 0xd0000000 0x0100000 /* internal registers */
0xe0000000 0xe0000000 0x8100000 /* PCIe */>;
internal-regs {
system-controller@18200 {
compatible = "marvell,armada-370-xp-system-controller";
@ -38,12 +39,12 @@
L2: l2-cache {
compatible = "marvell,aurora-outer-cache";
reg = <0xd0008000 0x1000>;
reg = <0x08000 0x1000>;
cache-id-part = <0x100>;
wt-override;
};
mpic: interrupt-controller@20000 {
interrupt-controller@20000 {
reg = <0x20a00 0x1d0>, <0x21870 0x58>;
};

3
arch/arm/boot/dts/armada-xp-gp.dts
View File

@ -39,6 +39,9 @@
};
soc {
ranges = <0 0 0xd0000000 0x100000
0xf0000000 0 0xf0000000 0x1000000>;
internal-regs {
serial@12000 {
clock-frequency = <250000000>;

3
arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
View File

@ -27,6 +27,9 @@
};
soc {
ranges = <0 0 0xd0000000 0x100000
0xf0000000 0 0xf0000000 0x8000000>;
internal-regs {
serial@12000 {
clock-frequency = <250000000>;

2
arch/arm/boot/dts/armada-xp.dtsi
View File

@ -31,7 +31,7 @@
wt-override;
};
mpic: interrupt-controller@20000 {
interrupt-controller@20000 {
reg = <0x20a00 0x2d0>, <0x21070 0x58>;
};

2
arch/arm/boot/dts/at91sam9260.dtsi
View File

@ -264,7 +264,7 @@
atmel,pins =
<0 10 0x2 0x0 /* PA10 periph B */
0 11 0x2 0x0 /* PA11 periph B */
0 24 0x2 0x0 /* PA24 periph B */
0 22 0x2 0x0 /* PA22 periph B */
0 25 0x2 0x0 /* PA25 periph B */
0 26 0x2 0x0 /* PA26 periph B */
0 27 0x2 0x0 /* PA27 periph B */

1
arch/arm/boot/dts/at91sam9n12.dtsi
View File

@ -57,6 +57,7 @@
compatible = "atmel,at91rm9200-aic";
interrupt-controller;
reg = <0xfffff000 0x200>;
atmel,external-irqs = <31>;
};
ramc0: ramc@ffffe800 {

2
arch/arm/boot/dts/at91sam9x25ek.dts
View File

@ -11,7 +11,7 @@
/include/ "at91sam9x5ek.dtsi"
/ {
model = "Atmel AT91SAM9G25-EK";
model = "Atmel AT91SAM9X25-EK";
compatible = "atmel,at91sam9x25ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
ahb {

15
arch/arm/boot/dts/exynos5250.dtsi
View File

@ -497,6 +497,21 @@
clock-names = "usbhost";
};
usbphy@12130000 {
compatible = "samsung,exynos5250-usb2phy";
reg = <0x12130000 0x100>;
clocks = <&clock 1>, <&clock 285>;
clock-names = "ext_xtal", "usbhost";
#address-cells = <1>;
#size-cells = <1>;
ranges;
usbphy-sys {
reg = <0x10040704 0x8>,
<0x10050230 0x4>;
};
};
amba {
#address-cells = <1>;
#size-cells = <1>;

2
arch/arm/boot/dts/omap3.dtsi
View File

@ -516,7 +516,7 @@
usb_otg_hs: usb_otg_hs@480ab000 {
compatible = "ti,omap3-musb";
reg = <0x480ab000 0x1000>;
interrupts = <0 92 0x4>, <0 93 0x4>;
interrupts = <92>, <93>;
interrupt-names = "mc", "dma";
ti,hwmods = "usb_otg_hs";
multipoint = <1>;

12
arch/arm/boot/dts/sama5d3.dtsi
View File

@ -75,11 +75,6 @@
compatible = "atmel,at91sam9x5-spi";
reg = <0xf0004000 0x100>;
interrupts = <24 4 3>;
cs-gpios = <&pioD 13 0
&pioD 14 0 /* conflicts with SCK0 and CANRX0 */
&pioD 15 0 /* conflicts with CTS0 and CANTX0 */
&pioD 16 0 /* conflicts with RTS0 and PWMFI3 */
>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_spi0>;
status = "disabled";
@ -156,7 +151,7 @@
};
macb0: ethernet@f0028000 {
compatible = "cnds,pc302-gem", "cdns,gem";
compatible = "cdns,pc302-gem", "cdns,gem";
reg = <0xf0028000 0x100>;
interrupts = <34 4 3>;
pinctrl-names = "default";
@ -203,11 +198,6 @@
compatible = "atmel,at91sam9x5-spi";
reg = <0xf8008000 0x100>;
interrupts = <25 4 3>;
cs-gpios = <&pioC 25 0
&pioC 26 0 /* conflitcs with TWD1 and ISI_D11 */
&pioC 27 0 /* conflitcs with TWCK1 and ISI_D10 */
&pioC 28 0 /* conflitcs with PWMFI0 and ISI_D9 */
>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_spi1>;
status = "disabled";

4
arch/arm/boot/dts/sama5d3xcm.dtsi
View File

@ -32,6 +32,10 @@
ahb {
apb {
spi0: spi@f0004000 {
cs-gpios = <&pioD 13 0>, <0>, <0>, <0>;
};
macb0: ethernet@f0028000 {
phy-mode = "rgmii";
};

12
arch/arm/boot/dts/ste-nomadik-s8815.dts
View File

@ -14,13 +14,19 @@
bootargs = "root=/dev/ram0 console=ttyAMA1,115200n8 earlyprintk";
};
/* This is where the interrupt is routed on the S8815 board */
external-bus@34000000 {
ethernet@300 {
interrupt-parent = <&gpio3>;
interrupts = <8 0x1>;
};
};
/* Custom board node with GPIO pins to active etc */
usb-s8815 {
/* The S8815 is using this very GPIO pin for the SMSC91x IRQs */
ethernet-gpio {
gpios = <&gpio3 19 0x1>;
interrupts = <19 0x1>;
interrupt-parent = <&gpio3>;
gpios = <&gpio3 8 0x1>;
};
/* This will bias the MMC/SD card detect line */
mmcsd-gpio {

4
arch/arm/boot/dts/sun4i-a10-mini-xplus.dts
View File

@ -22,8 +22,8 @@
bootargs = "earlyprintk console=ttyS0,115200";
};
soc {
uart0: uart@01c28000 {
soc@01c20000 {
uart0: serial@01c28000 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
status = "okay";

3
arch/arm/common/mcpm_platsmp.c
View File

@ -15,8 +15,6 @@
#include <linux/smp.h>
#include <linux/spinlock.h>
#include <linux/irqchip/arm-gic.h>
#include <asm/mcpm.h>
#include <asm/smp.h>
#include <asm/smp_plat.h>
@ -49,7 +47,6 @@ static int __cpuinit mcpm_boot_secondary(unsigned int cpu, struct task_struct *i
static void __cpuinit mcpm_secondary_init(unsigned int cpu)
{
mcpm_cpu_powered_up();
gic_secondary_init(0);
}
#ifdef CONFIG_HOTPLUG_CPU

54
arch/arm/configs/exynos_defconfig
View File

@ -1,4 +1,4 @@
CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BLK_DEV_INITRD=y
@ -7,17 +7,18 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_EFI_PARTITION=y
CONFIG_ARCH_EXYNOS=y
CONFIG_S3C_LOWLEVEL_UART_PORT=1
CONFIG_S3C_LOWLEVEL_UART_PORT=3
CONFIG_S3C24XX_PWM=y
CONFIG_ARCH_EXYNOS5=y
CONFIG_MACH_EXYNOS4_DT=y
CONFIG_MACH_EXYNOS5_DT=y
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_PREEMPT=y
CONFIG_AEABI=y
CONFIG_HIGHMEM=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_CMDLINE="root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC1,115200 init=/linuxrc mem=256M"
@ -30,35 +31,58 @@ CONFIG_NET_KEY=y
CONFIG_INET=y
CONFIG_RFKILL_REGULATOR=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_PROC_DEVICETREE=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
CONFIG_MD=y
CONFIG_BLK_DEV_DM=y
CONFIG_DM_CRYPT=m
CONFIG_NETDEVICES=y
CONFIG_SMSC911X=y
CONFIG_USB_USBNET=y
CONFIG_USB_NET_SMSC75XX=y
CONFIG_USB_NET_SMSC95XX=y
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
CONFIG_KEYBOARD_CROS_EC=y
# CONFIG_MOUSE_PS2 is not set
CONFIG_MOUSE_CYAPA=y
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_SAMSUNG=y
CONFIG_SERIAL_SAMSUNG_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_HW_RANDOM=y
CONFIG_TCG_TPM=y
CONFIG_TCG_TIS_I2C_INFINEON=y
CONFIG_I2C=y
CONFIG_I2C_MUX=y
CONFIG_I2C_ARB_GPIO_CHALLENGE=y
CONFIG_I2C_S3C2410=y
CONFIG_DEBUG_GPIO=y
# CONFIG_HWMON is not set
CONFIG_MFD_CROS_EC=y
CONFIG_MFD_CROS_EC_I2C=y
CONFIG_MFD_MAX77686=y
CONFIG_MFD_MAX8997=y
CONFIG_MFD_SEC_CORE=y
CONFIG_MFD_TPS65090=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_MAX8997=y
CONFIG_REGULATOR_MAX77686=y
CONFIG_REGULATOR_S5M8767=y
CONFIG_REGULATOR_TPS65090=y
CONFIG_FB=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_SIMPLE=y
CONFIG_EXYNOS_VIDEO=y
CONFIG_EXYNOS_MIPI_DSI=y
CONFIG_EXYNOS_DP=y
@ -67,6 +91,20 @@ CONFIG_FONTS=y
CONFIG_FONT_7x14=y
CONFIG_LOGO=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_S5P=y
CONFIG_USB_STORAGE=y
CONFIG_USB_DWC3=y
CONFIG_USB_PHY=y
CONFIG_SAMSUNG_USB2PHY=y
CONFIG_SAMSUNG_USB3PHY=y
CONFIG_MMC=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_S3C=y
CONFIG_MMC_DW=y
CONFIG_MMC_DW_IDMAC=y
CONFIG_MMC_DW_EXYNOS=y
CONFIG_COMMON_CLK_MAX77686=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=y
@ -79,6 +117,7 @@ CONFIG_ROMFS_FS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_PRINTK_TIME=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
@ -87,6 +126,5 @@ CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_USER=y
CONFIG_DEBUG_LL=y
CONFIG_EARLY_PRINTK=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRC_CCITT=y

1
arch/arm/configs/omap1_defconfig
View File

@ -199,7 +199,6 @@ CONFIG_USB_PHY=y
CONFIG_USB_DEBUG=y
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_SUSPEND=y
CONFIG_USB_MON=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=y

2
arch/arm/configs/omap2plus_defconfig
View File

@ -20,6 +20,7 @@ CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_ARCH_MULTI_V6=y
CONFIG_ARCH_OMAP2PLUS=y
CONFIG_OMAP_RESET_CLOCKS=y
CONFIG_OMAP_MUX_DEBUG=y
@ -204,7 +205,6 @@ CONFIG_USB=y
CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_DEVICEFS=y
CONFIG_USB_SUSPEND=y
CONFIG_USB_MON=y
CONFIG_USB_WDM=y
CONFIG_USB_STORAGE=y

3
arch/arm/configs/tegra_defconfig
View File

@ -153,6 +153,7 @@ CONFIG_MEDIA_CAMERA_SUPPORT=y
CONFIG_MEDIA_USB_SUPPORT=y
CONFIG_USB_VIDEO_CLASS=m
CONFIG_DRM=y
CONFIG_TEGRA_HOST1X=y
CONFIG_DRM_TEGRA=y
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
@ -202,7 +203,7 @@ CONFIG_TEGRA20_APB_DMA=y
CONFIG_STAGING=y
CONFIG_SENSORS_ISL29018=y
CONFIG_SENSORS_ISL29028=y
CONFIG_SENSORS_AK8975=y
CONFIG_AK8975=y
CONFIG_MFD_NVEC=y
CONFIG_KEYBOARD_NVEC=y
CONFIG_SERIO_NVEC_PS2=y

2
arch/arm/crypto/sha1-armv4-large.S
View File

@ -195,6 +195,7 @@ ENTRY(sha1_block_data_order)
add r3,r3,r10 @ E+=F_00_19(B,C,D)
cmp r14,sp
bne .L_00_15 @ [((11+4)*5+2)*3]
sub sp,sp,#25*4
#if __ARM_ARCH__<7
ldrb r10,[r1,#2]
ldrb r9,[r1,#3]
@ -290,7 +291,6 @@ ENTRY(sha1_block_data_order)
add r3,r3,r10 @ E+=F_00_19(B,C,D)
ldr r8,.LK_20_39 @ [+15+16*4]
sub sp,sp,#25*4
cmn sp,#0 @ [+3], clear carry to denote 20_39
.L_20_39_or_60_79:
ldr r9,[r14,#15*4]

8
arch/arm/include/asm/cmpxchg.h
View File

@ -233,15 +233,15 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
((__typeof__(*(ptr)))atomic64_cmpxchg(container_of((ptr), \
atomic64_t, \
counter), \
(unsigned long)(o), \
(unsigned long)(n)))
(unsigned long long)(o), \
(unsigned long long)(n)))
#define cmpxchg64_local(ptr, o, n) \
((__typeof__(*(ptr)))local64_cmpxchg(container_of((ptr), \
local64_t, \
a), \
(unsigned long)(o), \
(unsigned long)(n)))
(unsigned long long)(o), \
(unsigned long long)(n)))
#endif /* __LINUX_ARM_ARCH__ >= 6 */

6
arch/arm/include/debug/ux500.S
View File

@ -24,9 +24,9 @@
#define U8500_UART0_PHYS_BASE (0x80120000)
#define U8500_UART1_PHYS_BASE (0x80121000)
#define U8500_UART2_PHYS_BASE (0x80007000)
#define U8500_UART0_VIRT_BASE (0xa8120000)
#define U8500_UART1_VIRT_BASE (0xa8121000)
#define U8500_UART2_VIRT_BASE (0xa8007000)
#define U8500_UART0_VIRT_BASE (0xf8120000)
#define U8500_UART1_VIRT_BASE (0xf8121000)
#define U8500_UART2_VIRT_BASE (0xf8007000)
#define __UX500_PHYS_UART(n) U8500_UART##n##_PHYS_BASE
#define __UX500_VIRT_UART(n) U8500_UART##n##_VIRT_BASE
#endif

1
arch/arm/kernel/process.c
View File

@ -411,7 +411,6 @@ static struct vm_area_struct gate_vma = {
.vm_start = 0xffff0000,
.vm_end = 0xffff0000 + PAGE_SIZE,
.vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC,
.vm_mm = &init_mm,
};
static int __init gate_vma_init(void)

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

@ -251,7 +251,7 @@ void __ref cpu_die(void)
* this returns, power and/or clocks can be removed at any point
* from this CPU and its cache by platform_cpu_kill().
*/
RCU_NONIDLE(complete(&cpu_died));
complete(&cpu_died);
/*
* Ensure that the cache lines associated with that completion are

7
arch/arm/mach-at91/at91rm9200_time.c
View File

@ -174,6 +174,7 @@ clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev)
static struct clock_event_device clkevt = {
.name = "at91_tick",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.shift = 32,
.rating = 150,
.set_next_event = clkevt32k_next_event,
.set_mode = clkevt32k_mode,
@ -264,9 +265,11 @@ void __init at91rm9200_timer_init(void)
at91_st_write(AT91_ST_RTMR, 1);
/* Setup timer clockevent, with minimum of two ticks (important!!) */
clkevt.mult = div_sc(AT91_SLOW_CLOCK, NSEC_PER_SEC, clkevt.shift);
clkevt.max_delta_ns = clockevent_delta2ns(AT91_ST_ALMV, &clkevt);
clkevt.min_delta_ns = clockevent_delta2ns(2, &clkevt) + 1;
clkevt.cpumask = cpumask_of(0);
clockevents_config_and_register(&clkevt, AT91_SLOW_CLOCK,
2, AT91_ST_ALMV);
clockevents_register_device(&clkevt);
/* register clocksource */
clocksource_register_hz(&clk32k, AT91_SLOW_CLOCK);

6
arch/arm/mach-at91/at91sam9n12.c
View File

@ -223,13 +223,7 @@ static void __init at91sam9n12_map_io(void)
at91_init_sram(0, AT91SAM9N12_SRAM_BASE, AT91SAM9N12_SRAM_SIZE);
}
void __init at91sam9n12_initialize(void)
{
at91_extern_irq = (1 << AT91SAM9N12_ID_IRQ0);
}
AT91_SOC_START(at91sam9n12)
.map_io = at91sam9n12_map_io,
.register_clocks = at91sam9n12_register_clocks,
.init = at91sam9n12_initialize,
AT91_SOC_END

6
arch/arm/mach-at91/include/mach/at91_pmc.h
View File

@ -179,9 +179,9 @@ extern void __iomem *at91_pmc_base;
#define AT91_PMC_PCR_CMD (0x1 << 12) /* Command (read=0, write=1) */
#define AT91_PMC_PCR_DIV(n) ((n) << 16) /* Divisor Value */
#define AT91_PMC_PCR_DIV0 0x0 /* Peripheral clock is MCK */
#define AT91_PMC_PCR_DIV2 0x2 /* Peripheral clock is MCK/2 */
#define AT91_PMC_PCR_DIV4 0x4 /* Peripheral clock is MCK/4 */
#define AT91_PMC_PCR_DIV8 0x8 /* Peripheral clock is MCK/8 */
#define AT91_PMC_PCR_DIV2 0x1 /* Peripheral clock is MCK/2 */
#define AT91_PMC_PCR_DIV4 0x2 /* Peripheral clock is MCK/4 */
#define AT91_PMC_PCR_DIV8 0x3 /* Peripheral clock is MCK/8 */
#define AT91_PMC_PCR_EN (0x1 << 28) /* Enable */
#endif

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

@ -250,6 +250,7 @@ config MACH_ARMLEX4210
config MACH_UNIVERSAL_C210
bool "Mobile UNIVERSAL_C210 Board"
select CLKSRC_MMIO
select CLKSRC_SAMSUNG_PWM
select CPU_EXYNOS4210
select EXYNOS4_SETUP_FIMC
select EXYNOS4_SETUP_FIMD0
@ -281,7 +282,6 @@ config MACH_UNIVERSAL_C210
select S5P_DEV_TV
select S5P_GPIO_INT
select S5P_SETUP_MIPIPHY
select SAMSUNG_HRT
help
Machine support for Samsung Mobile Universal S5PC210 Reference
Board.
@ -410,6 +410,7 @@ config MACH_EXYNOS4_DT
depends on ARCH_EXYNOS4
select ARM_AMBA
select CLKSRC_OF
select CLKSRC_SAMSUNG_PWM if CPU_EXYNOS4210
select CPU_EXYNOS4210
select KEYBOARD_SAMSUNG if INPUT_KEYBOARD
select PINCTRL

39
arch/arm/mach-exynos/common.c
View File

@ -10,12 +10,14 @@
*/
#include <linux/kernel.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqchip.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/gpio.h>
#include <clocksource/samsung_pwm.h>
#include <linux/sched.h>
#include <linux/serial_core.h>
#include <linux/of.h>
@ -302,6 +304,13 @@ static struct map_desc exynos5440_iodesc0[] __initdata = {
},
};
static struct samsung_pwm_variant exynos4_pwm_variant = {
.bits = 32,
.div_base = 0,
.has_tint_cstat = true,
.tclk_mask = 0,
};
void exynos4_restart(char mode, const char *cmd)
{
__raw_writel(0x1, S5P_SWRESET);
@ -317,9 +326,16 @@ void exynos5_restart(char mode, const char *cmd)
val = 0x1;
addr = EXYNOS_SWRESET;
} else if (of_machine_is_compatible("samsung,exynos5440")) {
u32 status;
np = of_find_compatible_node(NULL, NULL, "samsung,exynos5440-clock");
addr = of_iomap(np, 0) + 0xbc;
status = __raw_readl(addr);
addr = of_iomap(np, 0) + 0xcc;
val = (0xfff << 20) | (0x1 << 16);
val = __raw_readl(addr);
val = (val & 0xffff0000) | (status & 0xffff);
} else {
pr_err("%s: cannot support non-DT\n", __func__);
return;
@ -442,8 +458,20 @@ static void __init exynos5440_map_io(void)
iotable_init(exynos5440_iodesc0, ARRAY_SIZE(exynos5440_iodesc0));
}
void __init exynos_set_timer_source(u8 channels)
{
exynos4_pwm_variant.output_mask = BIT(SAMSUNG_PWM_NUM) - 1;
exynos4_pwm_variant.output_mask &= ~channels;
}
void __init exynos_init_time(void)
{
unsigned int timer_irqs[SAMSUNG_PWM_NUM] = {
EXYNOS4_IRQ_TIMER0_VIC, EXYNOS4_IRQ_TIMER1_VIC,
EXYNOS4_IRQ_TIMER2_VIC, EXYNOS4_IRQ_TIMER3_VIC,
EXYNOS4_IRQ_TIMER4_VIC,
};
if (of_have_populated_dt()) {
#ifdef CONFIG_OF
of_clk_init(NULL);
@ -455,7 +483,14 @@ void __init exynos_init_time(void)
exynos4_clk_init(NULL, !soc_is_exynos4210(), S5P_VA_CMU, readl(S5P_VA_CHIPID + 8) & 1);
exynos4_clk_register_fixed_ext(xxti_f, xusbxti_f);
#endif
mct_init(S5P_VA_SYSTIMER, EXYNOS4_IRQ_MCT_G0, EXYNOS4_IRQ_MCT_L0, EXYNOS4_IRQ_MCT_L1);
#ifdef CONFIG_CLKSRC_SAMSUNG_PWM
if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_0)
samsung_pwm_clocksource_init(S3C_VA_TIMER,
timer_irqs, &exynos4_pwm_variant);
else
#endif
mct_init(S5P_VA_SYSTIMER, EXYNOS4_IRQ_MCT_G0,
EXYNOS4_IRQ_MCT_L0, EXYNOS4_IRQ_MCT_L1);
}
}

2
arch/arm/mach-exynos/common.h
View File

@ -32,6 +32,8 @@ void exynos4_clk_register_fixed_ext(unsigned long, unsigned long);
void exynos_firmware_init(void);
void exynos_set_timer_source(u8 channels);
#ifdef CONFIG_PM_GENERIC_DOMAINS
int exynos_pm_late_initcall(void);
#else

14
arch/arm/mach-exynos/include/mach/pm-core.h
View File

@ -18,8 +18,15 @@
#ifndef __ASM_ARCH_PM_CORE_H
#define __ASM_ARCH_PM_CORE_H __FILE__
#include <linux/of.h>
#include <mach/regs-pmu.h>
#ifdef CONFIG_PINCTRL_EXYNOS
extern u32 exynos_get_eint_wake_mask(void);
#else
static inline u32 exynos_get_eint_wake_mask(void) { return 0xffffffff; }
#endif
static inline void s3c_pm_debug_init_uart(void)
{
/* nothing here yet */
@ -27,7 +34,12 @@ static inline void s3c_pm_debug_init_uart(void)
static inline void s3c_pm_arch_prepare_irqs(void)
{
__raw_writel(s3c_irqwake_eintmask, S5P_EINT_WAKEUP_MASK);
u32 eintmask = s3c_irqwake_eintmask;
if (of_have_populated_dt())
eintmask = exynos_get_eint_wake_mask();
__raw_writel(eintmask, S5P_EINT_WAKEUP_MASK);
__raw_writel(s3c_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK);
}

5
arch/arm/mach-exynos/mach-universal_c210.c
View File

@ -41,7 +41,6 @@
#include <plat/mfc.h>
#include <plat/sdhci.h>
#include <plat/fimc-core.h>
#include <plat/samsung-time.h>
#include <plat/camport.h>
#include <mach/map.h>
@ -1094,7 +1093,7 @@ static void __init universal_map_io(void)
{
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM2, SAMSUNG_PWM4);
exynos_set_timer_source(BIT(2) | BIT(4));
xxti_f = 0;
xusbxti_f = 24000000;
}
@ -1154,7 +1153,7 @@ MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
.map_io = universal_map_io,
.init_machine = universal_machine_init,
.init_late = exynos_init_late,
.init_time = samsung_timer_init,
.init_time = exynos_init_time,
.reserve = &universal_reserve,
.restart = exynos4_restart,
MACHINE_END

11
arch/arm/mach-imx/clk-imx6q.c
View File

@ -177,7 +177,8 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
static const char *step_sels[] = { "osc", "pll2_pfd2_396m", };
static const char *pll1_sw_sels[] = { "pll1_sys", "step", };
static const char *periph_pre_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", };
static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", };
static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", "dummy", };
static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", };
static const char *periph_sels[] = { "periph_pre", "periph_clk2", };
static const char *periph2_sels[] = { "periph2_pre", "periph2_clk2", };
static const char *axi_sels[] = { "periph", "pll2_pfd2_396m", "pll3_pfd1_540m", };
@ -185,7 +186,7 @@ static const char *audio_sels[] = { "pll4_post_div", "pll3_pfd2_508m", "pll3_pfd
static const char *gpu_axi_sels[] = { "axi", "ahb", };
static const char *gpu2d_core_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", };
static const char *gpu3d_core_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", };
static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd9_720m", };
static const char *gpu3d_shader_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll3_pfd0_720m", };
static const char *ipu_sels[] = { "mmdc_ch0_axi", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", };
static const char *ldb_di_sels[] = { "pll5_video", "pll2_pfd0_352m", "pll2_pfd2_396m", "mmdc_ch1_axi", "pll3_usb_otg", };
static const char *ipu_di_pre_sels[] = { "mmdc_ch0_axi", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd1_540m", };
@ -369,8 +370,8 @@ int __init mx6q_clocks_init(void)
clk[pll1_sw] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels));
clk[periph_pre] = imx_clk_mux("periph_pre", base + 0x18, 18, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels));
clk[periph2_pre] = imx_clk_mux("periph2_pre", base + 0x18, 21, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels));
clk[periph_clk2_sel] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 1, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels));
clk[periph2_clk2_sel] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels));
clk[periph_clk2_sel] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels));
clk[periph2_clk2_sel] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels));
clk[axi_sel] = imx_clk_mux("axi_sel", base + 0x14, 6, 2, axi_sels, ARRAY_SIZE(axi_sels));
clk[esai_sel] = imx_clk_mux("esai_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels));
clk[asrc_sel] = imx_clk_mux("asrc_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels));
@ -498,7 +499,7 @@ int __init mx6q_clocks_init(void)
clk[ldb_di1] = imx_clk_gate2("ldb_di1", "ldb_di1_podf", base + 0x74, 14);
clk[ipu2_di1] = imx_clk_gate2("ipu2_di1", "ipu2_di1_sel", base + 0x74, 10);
clk[hsi_tx] = imx_clk_gate2("hsi_tx", "hsi_tx_podf", base + 0x74, 16);
clk[mlb] = imx_clk_gate2("mlb", "pll8_mlb", base + 0x74, 18);
clk[mlb] = imx_clk_gate2("mlb", "axi", base + 0x74, 18);
clk[mmdc_ch0_axi] = imx_clk_gate2("mmdc_ch0_axi", "mmdc_ch0_axi_podf", base + 0x74, 20);
clk[mmdc_ch1_axi] = imx_clk_gate2("mmdc_ch1_axi", "mmdc_ch1_axi_podf", base + 0x74, 22);
clk[ocram] = imx_clk_gate2("ocram", "ahb", base + 0x74, 28);

12
arch/arm/mach-imx/headsmp.S
View File

@ -18,8 +18,20 @@
.section ".text.head", "ax"
#ifdef CONFIG_SMP
diag_reg_offset:
.word g_diag_reg - .
.macro set_diag_reg
adr r0, diag_reg_offset
ldr r1, [r0]
add r1, r1, r0 @ r1 = physical &g_diag_reg
ldr r0, [r1]
mcr p15, 0, r0, c15, c0, 1 @ write diagnostic register
.endm
ENTRY(v7_secondary_startup)
bl v7_invalidate_l1
set_diag_reg
b secondary_startup
ENDPROC(v7_secondary_startup)
#endif

14
arch/arm/mach-imx/platsmp.c
View File

@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/smp.h>
#include <asm/cacheflush.h>
#include <asm/page.h>
#include <asm/smp_scu.h>
#include <asm/mach/map.h>
@ -21,6 +22,7 @@
#define SCU_STANDBY_ENABLE (1 << 5)
u32 g_diag_reg;
static void __iomem *scu_base;
static struct map_desc scu_io_desc __initdata = {
@ -80,6 +82,18 @@ void imx_smp_prepare(void)
static void __init imx_smp_prepare_cpus(unsigned int max_cpus)
{
imx_smp_prepare();
/*
* The diagnostic register holds the errata bits. Mostly bootloader
* does not bring up secondary cores, so that when errata bits are set
* in bootloader, they are set only for boot cpu. But on a SMP
* configuration, it should be equally done on every single core.
* Read the register from boot cpu here, and will replicate it into
* secondary cores when booting them.
*/
asm("mrc p15, 0, %0, c15, c0, 1" : "=r" (g_diag_reg) : : "cc");
__cpuc_flush_dcache_area(&g_diag_reg, sizeof(g_diag_reg));
outer_clean_range(__pa(&g_diag_reg), __pa(&g_diag_reg + 1));
}
struct smp_operations imx_smp_ops __initdata = {

6
arch/arm/mach-kirkwood/common.c
View File

@ -528,12 +528,6 @@ void __init kirkwood_init_early(void)
{
orion_time_set_base(TIMER_VIRT_BASE);
/*
* Some Kirkwood devices allocate their coherent buffers from atomic
* context. Increase size of atomic coherent pool to make sure such
* the allocations won't fail.
*/
init_dma_coherent_pool_size(SZ_1M);
mvebu_mbus_init("marvell,kirkwood-mbus",
BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
DDR_WINDOW_CPU_BASE, DDR_WINDOW_CPU_SZ);

2
arch/arm/mach-kirkwood/ts219-setup.c
View File

@ -124,7 +124,7 @@ static void __init qnap_ts219_init(void)
static int __init ts219_pci_init(void)
{
if (machine_is_ts219())
kirkwood_pcie_init(KW_PCIE0);
kirkwood_pcie_init(KW_PCIE1 | KW_PCIE0);
return 0;
}

1
arch/arm/mach-mvebu/Kconfig
View File

@ -15,6 +15,7 @@ config ARCH_MVEBU
select MVEBU_CLK_GATING
select MVEBU_MBUS
select ZONE_DMA if ARM_LPAE
select ARCH_REQUIRE_GPIOLIB
if ARCH_MVEBU

7
arch/arm/mach-mvebu/armada-370-xp.c
View File

@ -53,13 +53,6 @@ void __init armada_370_xp_init_early(void)
{
char *mbus_soc_name;
/*
* Some Armada 370/XP devices allocate their coherent buffers
* from atomic context. Increase size of atomic coherent pool
* to make sure such the allocations won't fail.
*/
init_dma_coherent_pool_size(SZ_1M);
/*
* This initialization will be replaced by a DT-based
* initialization once the mvebu-mbus driver gains DT support.

1
arch/arm/mach-omap1/dma.c
View File

@ -345,6 +345,7 @@ static int __init omap1_system_dma_init(void)
dev_err(&pdev->dev,
"%s: Memory allocation failed for d->chan!\n",
__func__);
ret = -ENOMEM;
goto exit_release_d;
}

26
arch/arm/mach-omap2/cclock33xx_data.c
View File

@ -454,9 +454,29 @@ DEFINE_CLK_GATE(cefuse_fck, "sys_clkin_ck", &sys_clkin_ck, 0x0,
*/
DEFINE_CLK_FIXED_FACTOR(clkdiv32k_ck, "clk_24mhz", &clk_24mhz, 0x0, 1, 732);
DEFINE_CLK_GATE(clkdiv32k_ick, "clkdiv32k_ck", &clkdiv32k_ck, 0x0,
AM33XX_CM_PER_CLKDIV32K_CLKCTRL, AM33XX_MODULEMODE_SWCTRL_SHIFT,
0x0, NULL);
static struct clk clkdiv32k_ick;
static const char *clkdiv32k_ick_parent_names[] = {
"clkdiv32k_ck",
};
static const struct clk_ops clkdiv32k_ick_ops = {
.enable = &omap2_dflt_clk_enable,
.disable = &omap2_dflt_clk_disable,
.is_enabled = &omap2_dflt_clk_is_enabled,
.init = &omap2_init_clk_clkdm,
};
static struct clk_hw_omap clkdiv32k_ick_hw = {
.hw = {
.clk = &clkdiv32k_ick,
},
.enable_reg = AM33XX_CM_PER_CLKDIV32K_CLKCTRL,
.enable_bit = AM33XX_MODULEMODE_SWCTRL_SHIFT,
.clkdm_name = "clk_24mhz_clkdm",
};
DEFINE_STRUCT_CLK(clkdiv32k_ick, clkdiv32k_ick_parent_names, clkdiv32k_ick_ops);
/* "usbotg_fck" is an additional clock and not really a modulemode */
DEFINE_CLK_GATE(usbotg_fck, "dpll_per_ck", &dpll_per_ck, 0x0,

113
arch/arm/mach-omap2/omap_hwmod.c
View File

@ -1356,13 +1356,27 @@ static void _enable_sysc(struct omap_hwmod *oh)
clkdm = _get_clkdm(oh);
if (sf & SYSC_HAS_SIDLEMODE) {
if (oh->flags & HWMOD_SWSUP_SIDLE ||
oh->flags & HWMOD_SWSUP_SIDLE_ACT) {
idlemode = HWMOD_IDLEMODE_NO;
} else {
if (sf & SYSC_HAS_ENAWAKEUP)
_enable_wakeup(oh, &v);
if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)
idlemode = HWMOD_IDLEMODE_SMART_WKUP;
else
idlemode = HWMOD_IDLEMODE_SMART;
}
/*
* This is special handling for some IPs like
* 32k sync timer. Force them to idle!
*/
clkdm_act = (clkdm && clkdm->flags & CLKDM_ACTIVE_WITH_MPU);
if (clkdm_act && !(oh->class->sysc->idlemodes &
(SIDLE_SMART | SIDLE_SMART_WKUP)))
idlemode = HWMOD_IDLEMODE_FORCE;
else
idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}
@ -1391,10 +1405,6 @@ static void _enable_sysc(struct omap_hwmod *oh)
(sf & SYSC_HAS_CLOCKACTIVITY))
_set_clockactivity(oh, oh->class->sysc->clockact, &v);
/* If slave is in SMARTIDLE, also enable wakeup */
if ((sf & SYSC_HAS_SIDLEMODE) && !(oh->flags & HWMOD_SWSUP_SIDLE))
_enable_wakeup(oh, &v);
_write_sysconfig(v, oh);
/*
@ -1430,13 +1440,16 @@ static void _idle_sysc(struct omap_hwmod *oh)
sf = oh->class->sysc->sysc_flags;
if (sf & SYSC_HAS_SIDLEMODE) {
/* XXX What about HWMOD_IDLEMODE_SMART_WKUP? */
if (oh->flags & HWMOD_SWSUP_SIDLE ||
!(oh->class->sysc->idlemodes &
(SIDLE_SMART | SIDLE_SMART_WKUP)))
if (oh->flags & HWMOD_SWSUP_SIDLE) {
idlemode = HWMOD_IDLEMODE_FORCE;
else
idlemode = HWMOD_IDLEMODE_SMART;
} else {
if (sf & SYSC_HAS_ENAWAKEUP)
_enable_wakeup(oh, &v);
if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)
idlemode = HWMOD_IDLEMODE_SMART_WKUP;
else
idlemode = HWMOD_IDLEMODE_SMART;
}
_set_slave_idlemode(oh, idlemode, &v);
}
@ -1455,10 +1468,6 @@ static void _idle_sysc(struct omap_hwmod *oh)
_set_master_standbymode(oh, idlemode, &v);
}
/* If slave is in SMARTIDLE, also enable wakeup */
if ((sf & SYSC_HAS_SIDLEMODE) && !(oh->flags & HWMOD_SWSUP_SIDLE))
_enable_wakeup(oh, &v);
_write_sysconfig(v, oh);
}
@ -2065,7 +2074,7 @@ static int _omap4_get_context_lost(struct omap_hwmod *oh)
* do so is present in the hwmod data, then call it and pass along the
* return value; otherwise, return 0.
*/
static int __init _enable_preprogram(struct omap_hwmod *oh)
static int _enable_preprogram(struct omap_hwmod *oh)
{
if (!oh->class->enable_preprogram)
return 0;
@ -2245,42 +2254,6 @@ static int _idle(struct omap_hwmod *oh)
return 0;
}
/**
* omap_hwmod_set_ocp_autoidle - set the hwmod's OCP autoidle bit
* @oh: struct omap_hwmod *
* @autoidle: desired AUTOIDLE bitfield value (0 or 1)
*
* Sets the IP block's OCP autoidle bit in hardware, and updates our
* local copy. Intended to be used by drivers that require
* direct manipulation of the AUTOIDLE bits.
* Returns -EINVAL if @oh is null or is not in the ENABLED state, or passes
* along the return value from _set_module_autoidle().
*
* Any users of this function should be scrutinized carefully.
*/
int omap_hwmod_set_ocp_autoidle(struct omap_hwmod *oh, u8 autoidle)
{
u32 v;
int retval = 0;
unsigned long flags;
if (!oh || oh->_state != _HWMOD_STATE_ENABLED)
return -EINVAL;
spin_lock_irqsave(&oh->_lock, flags);
v = oh->_sysc_cache;
retval = _set_module_autoidle(oh, autoidle, &v);
if (!retval)
_write_sysconfig(v, oh);
spin_unlock_irqrestore(&oh->_lock, flags);
return retval;
}
/**
* _shutdown - shutdown an omap_hwmod
* @oh: struct omap_hwmod *
@ -3179,38 +3152,6 @@ error:
return ret;
}
/**
* omap_hwmod_set_slave_idlemode - set the hwmod's OCP slave idlemode
* @oh: struct omap_hwmod *
* @idlemode: SIDLEMODE field bits (shifted to bit 0)
*
* Sets the IP block's OCP slave idlemode in hardware, and updates our
* local copy. Intended to be used by drivers that have some erratum
* that requires direct manipulation of the SIDLEMODE bits. Returns
* -EINVAL if @oh is null, or passes along the return value from
* _set_slave_idlemode().
*
* XXX Does this function have any current users? If not, we should
* remove it; it is better to let the rest of the hwmod code handle this.
* Any users of this function should be scrutinized carefully.
*/
int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode)
{
u32 v;
int retval = 0;
if (!oh)
return -EINVAL;
v = oh->_sysc_cache;
retval = _set_slave_idlemode(oh, idlemode, &v);
if (!retval)
_write_sysconfig(v, oh);
return retval;
}
/**
* omap_hwmod_lookup - look up a registered omap_hwmod by name
* @name: name of the omap_hwmod to look up

7
arch/arm/mach-omap2/omap_hwmod.h
View File

@ -463,6 +463,9 @@ struct omap_hwmod_omap4_prcm {
* is kept in force-standby mode. Failing to do so causes PM problems
* with musb on OMAP3630 at least. Note that musb has a dedicated register
* to control MSTANDBY signal when MIDLEMODE is set to force-standby.
* HWMOD_SWSUP_SIDLE_ACT: omap_hwmod code should manually bring the module
* out of idle, but rely on smart-idle to the put it back in idle,
* so the wakeups are still functional (Only known case for now is UART)
*/
#define HWMOD_SWSUP_SIDLE (1 << 0)
#define HWMOD_SWSUP_MSTANDBY (1 << 1)
@ -476,6 +479,7 @@ struct omap_hwmod_omap4_prcm {
#define HWMOD_EXT_OPT_MAIN_CLK (1 << 9)
#define HWMOD_BLOCK_WFI (1 << 10)
#define HWMOD_FORCE_MSTANDBY (1 << 11)
#define HWMOD_SWSUP_SIDLE_ACT (1 << 12)
/*
* omap_hwmod._int_flags definitions
@ -641,9 +645,6 @@ int omap_hwmod_read_hardreset(struct omap_hwmod *oh, const char *name);
int omap_hwmod_enable_clocks(struct omap_hwmod *oh);
int omap_hwmod_disable_clocks(struct omap_hwmod *oh);
int omap_hwmod_set_slave_idlemode(struct omap_hwmod *oh, u8 idlemode);
int omap_hwmod_set_ocp_autoidle(struct omap_hwmod *oh, u8 autoidle);
int omap_hwmod_reset(struct omap_hwmod *oh);
void omap_hwmod_ocp_barrier(struct omap_hwmod *oh);

3
arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c
View File

@ -512,6 +512,7 @@ struct omap_hwmod omap2xxx_uart1_hwmod = {
.mpu_irqs = omap2_uart1_mpu_irqs,
.sdma_reqs = omap2_uart1_sdma_reqs,
.main_clk = "uart1_fck",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.prcm = {
.omap2 = {
.module_offs = CORE_MOD,
@ -531,6 +532,7 @@ struct omap_hwmod omap2xxx_uart2_hwmod = {
.mpu_irqs = omap2_uart2_mpu_irqs,
.sdma_reqs = omap2_uart2_sdma_reqs,
.main_clk = "uart2_fck",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.prcm = {
.omap2 = {
.module_offs = CORE_MOD,
@ -550,6 +552,7 @@ struct omap_hwmod omap2xxx_uart3_hwmod = {
.mpu_irqs = omap2_uart3_mpu_irqs,
.sdma_reqs = omap2_uart3_sdma_reqs,
.main_clk = "uart3_fck",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.prcm = {
.omap2 = {
.module_offs = CORE_MOD,

6
arch/arm/mach-omap2/omap_hwmod_33xx_data.c
View File

@ -1995,6 +1995,7 @@ static struct omap_hwmod am33xx_uart1_hwmod = {
.name = "uart1",
.class = &uart_class,
.clkdm_name = "l4_wkup_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = am33xx_uart1_irqs,
.sdma_reqs = uart1_edma_reqs,
.main_clk = "dpll_per_m2_div4_wkupdm_ck",
@ -2015,6 +2016,7 @@ static struct omap_hwmod am33xx_uart2_hwmod = {
.name = "uart2",
.class = &uart_class,
.clkdm_name = "l4ls_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = am33xx_uart2_irqs,
.sdma_reqs = uart1_edma_reqs,
.main_clk = "dpll_per_m2_div4_ck",
@ -2042,6 +2044,7 @@ static struct omap_hwmod am33xx_uart3_hwmod = {
.name = "uart3",
.class = &uart_class,
.clkdm_name = "l4ls_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = am33xx_uart3_irqs,
.sdma_reqs = uart3_edma_reqs,
.main_clk = "dpll_per_m2_div4_ck",
@ -2062,6 +2065,7 @@ static struct omap_hwmod am33xx_uart4_hwmod = {
.name = "uart4",
.class = &uart_class,
.clkdm_name = "l4ls_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = am33xx_uart4_irqs,
.sdma_reqs = uart1_edma_reqs,
.main_clk = "dpll_per_m2_div4_ck",
@ -2082,6 +2086,7 @@ static struct omap_hwmod am33xx_uart5_hwmod = {
.name = "uart5",
.class = &uart_class,
.clkdm_name = "l4ls_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = am33xx_uart5_irqs,
.sdma_reqs = uart1_edma_reqs,
.main_clk = "dpll_per_m2_div4_ck",
@ -2102,6 +2107,7 @@ static struct omap_hwmod am33xx_uart6_hwmod = {
.name = "uart6",
.class = &uart_class,
.clkdm_name = "l4ls_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = am33xx_uart6_irqs,
.sdma_reqs = uart1_edma_reqs,
.main_clk = "dpll_per_m2_div4_ck",

4
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
View File

@ -490,6 +490,7 @@ static struct omap_hwmod omap3xxx_uart1_hwmod = {
.mpu_irqs = omap2_uart1_mpu_irqs,
.sdma_reqs = omap2_uart1_sdma_reqs,
.main_clk = "uart1_fck",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.prcm = {
.omap2 = {
.module_offs = CORE_MOD,
@ -508,6 +509,7 @@ static struct omap_hwmod omap3xxx_uart2_hwmod = {
.mpu_irqs = omap2_uart2_mpu_irqs,
.sdma_reqs = omap2_uart2_sdma_reqs,
.main_clk = "uart2_fck",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.prcm = {
.omap2 = {
.module_offs = CORE_MOD,
@ -526,6 +528,7 @@ static struct omap_hwmod omap3xxx_uart3_hwmod = {
.mpu_irqs = omap2_uart3_mpu_irqs,
.sdma_reqs = omap2_uart3_sdma_reqs,
.main_clk = "uart3_fck",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.prcm = {
.omap2 = {
.module_offs = OMAP3430_PER_MOD,
@ -555,6 +558,7 @@ static struct omap_hwmod omap36xx_uart4_hwmod = {
.mpu_irqs = uart4_mpu_irqs,
.sdma_reqs = uart4_sdma_reqs,
.main_clk = "uart4_fck",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.prcm = {
.omap2 = {
.module_offs = OMAP3430_PER_MOD,

6
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
View File

@ -3434,6 +3434,7 @@ static struct omap_hwmod omap44xx_uart1_hwmod = {
.name = "uart1",
.class = &omap44xx_uart_hwmod_class,
.clkdm_name = "l4_per_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = omap44xx_uart1_irqs,
.sdma_reqs = omap44xx_uart1_sdma_reqs,
.main_clk = "func_48m_fclk",
@ -3462,6 +3463,7 @@ static struct omap_hwmod omap44xx_uart2_hwmod = {
.name = "uart2",
.class = &omap44xx_uart_hwmod_class,
.clkdm_name = "l4_per_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = omap44xx_uart2_irqs,
.sdma_reqs = omap44xx_uart2_sdma_reqs,
.main_clk = "func_48m_fclk",
@ -3490,7 +3492,8 @@ static struct omap_hwmod omap44xx_uart3_hwmod = {
.name = "uart3",
.class = &omap44xx_uart_hwmod_class,
.clkdm_name = "l4_per_clkdm",
.flags = HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET,
.flags = HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET |
HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = omap44xx_uart3_irqs,
.sdma_reqs = omap44xx_uart3_sdma_reqs,
.main_clk = "func_48m_fclk",
@ -3519,6 +3522,7 @@ static struct omap_hwmod omap44xx_uart4_hwmod = {
.name = "uart4",
.class = &omap44xx_uart_hwmod_class,
.clkdm_name = "l4_per_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = omap44xx_uart4_irqs,
.sdma_reqs = omap44xx_uart4_sdma_reqs,
.main_clk = "func_48m_fclk",

31
arch/arm/mach-omap2/serial.c
View File

@ -95,38 +95,9 @@ static void omap_uart_enable_wakeup(struct device *dev, bool enable)
omap_hwmod_disable_wakeup(od->hwmods[0]);
}
/*
* Errata i291: [UART]:Cannot Acknowledge Idle Requests
* in Smartidle Mode When Configured for DMA Operations.
* WA: configure uart in force idle mode.
*/
static void omap_uart_set_noidle(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct omap_device *od = to_omap_device(pdev);
omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_NO);
}
static void omap_uart_set_smartidle(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct omap_device *od = to_omap_device(pdev);
u8 idlemode;
if (od->hwmods[0]->class->sysc->idlemodes & SIDLE_SMART_WKUP)
idlemode = HWMOD_IDLEMODE_SMART_WKUP;
else
idlemode = HWMOD_IDLEMODE_SMART;
omap_hwmod_set_slave_idlemode(od->hwmods[0], idlemode);
}
#else
static void omap_uart_enable_wakeup(struct device *dev, bool enable)
{}
static void omap_uart_set_noidle(struct device *dev) {}
static void omap_uart_set_smartidle(struct device *dev) {}
#endif /* CONFIG_PM */
#ifdef CONFIG_OMAP_MUX
@ -299,8 +270,6 @@ void __init omap_serial_init_port(struct omap_board_data *bdata,
omap_up.uartclk = OMAP24XX_BASE_BAUD * 16;
omap_up.flags = UPF_BOOT_AUTOCONF;
omap_up.get_context_loss_count = omap_pm_get_dev_context_loss_count;
omap_up.set_forceidle = omap_uart_set_smartidle;
omap_up.set_noidle = omap_uart_set_noidle;
omap_up.enable_wakeup = omap_uart_enable_wakeup;
omap_up.dma_rx_buf_size = info->dma_rx_buf_size;
omap_up.dma_rx_timeout = info->dma_rx_timeout;

7
arch/arm/mach-orion5x/common.c
View File

@ -199,13 +199,6 @@ void __init orion5x_init_early(void)
orion_time_set_base(TIMER_VIRT_BASE);
/*
* Some Orion5x devices allocate their coherent buffers from atomic
* context. Increase size of atomic coherent pool to make sure such
* the allocations won't fail.
*/
init_dma_coherent_pool_size(SZ_1M);
/* Initialize the MBUS driver */
orion5x_pcie_id(&dev, &rev);
if (dev == MV88F5281_DEV_ID)

6
arch/arm/mach-shmobile/board-marzen.c
View File

@ -212,8 +212,8 @@ static struct platform_device *marzen_devices[] __initdata = {
static struct usb_phy *phy;
static int usb_power_on(struct platform_device *pdev)
{
if (!phy)
return -EIO;
if (IS_ERR(phy))
return PTR_ERR(phy);
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
@ -225,7 +225,7 @@ static int usb_power_on(struct platform_device *pdev)
static void usb_power_off(struct platform_device *pdev)
{
if (!phy)
if (IS_ERR(phy))
return;
usb_phy_shutdown(phy);

1
arch/arm/mach-sunxi/Kconfig
View File

@ -1,5 +1,6 @@
config ARCH_SUNXI
bool "Allwinner A1X SOCs" if ARCH_MULTI_V7
select ARCH_REQUIRE_GPIOLIB
select CLKSRC_MMIO
select CLKSRC_OF
select COMMON_CLK

5
arch/arm/mach-tegra/tegra2_emc.c
View File

@ -307,11 +307,6 @@ static int tegra_emc_probe(struct platform_device *pdev)
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "missing register base\n");
return -ENOMEM;
}
emc_regbase = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(emc_regbase))
return PTR_ERR(emc_regbase);

1
arch/arm/mach-ux500/Kconfig
View File

@ -51,6 +51,7 @@ config MACH_MOP500
bool "U8500 Development platform, MOP500 versions"
select I2C
select I2C_NOMADIK
select REGULATOR
select REGULATOR_FIXED_VOLTAGE
select SOC_BUS
select UX500_SOC_DB8500

6
arch/arm/mach-ux500/board-mop500.c
View File

@ -623,7 +623,7 @@ static void __init mop500_init_machine(void)
sdi0_reg_info.gpios[0].gpio = GPIO_SDMMC_1V8_3V_SEL;
mop500_pinmaps_init();
parent = u8500_init_devices(&ab8500_platdata);
parent = u8500_init_devices();
for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++)
mop500_platform_devs[i]->dev.parent = parent;
@ -660,7 +660,7 @@ static void __init snowball_init_machine(void)
sdi0_reg_info.gpios[0].gpio = SNOWBALL_SDMMC_1V8_3V_GPIO;
snowball_pinmaps_init();
parent = u8500_init_devices(&ab8500_platdata);
parent = u8500_init_devices();
for (i = 0; i < ARRAY_SIZE(snowball_platform_devs); i++)
snowball_platform_devs[i]->dev.parent = parent;
@ -698,7 +698,7 @@ static void __init hrefv60_init_machine(void)
sdi0_reg_info.gpios[0].gpio = HREFV60_SDMMC_1V8_3V_GPIO;
hrefv60_pinmaps_init();
parent = u8500_init_devices(&ab8500_platdata);
parent = u8500_init_devices();
for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++)
mop500_platform_devs[i]->dev.parent = parent;

6
arch/arm/mach-ux500/cpu-db8500.c
View File

@ -206,7 +206,7 @@ static struct device * __init db8500_soc_device_init(void)
/*
* This function is called from the board init
*/
struct device * __init u8500_init_devices(struct ab8500_platform_data *ab8500)
struct device * __init u8500_init_devices(void)
{
struct device *parent;
int i;
@ -220,8 +220,6 @@ struct device * __init u8500_init_devices(struct ab8500_platform_data *ab8500)
for (i = 0; i < ARRAY_SIZE(platform_devs); i++)
platform_devs[i]->dev.parent = parent;
db8500_prcmu_device.dev.platform_data = ab8500;
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
return parent;
@ -278,7 +276,7 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("st,nomadik-i2c", 0x8012a000, "nmk-i2c.4", NULL),
OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
&db8500_prcmu_pdata),
OF_DEV_AUXDATA("smsc,lan9115", 0x50000000, "smsc911x", NULL),
OF_DEV_AUXDATA("smsc,lan9115", 0x50000000, "smsc911x.0", NULL),
/* Requires device name bindings. */
OF_DEV_AUXDATA("stericsson,nmk-pinctrl", U8500_PRCMU_BASE,
"pinctrl-db8500", NULL),

2
arch/arm/mach-ux500/setup.h
View File

@ -18,7 +18,7 @@
void __init ux500_map_io(void);
extern void __init u8500_map_io(void);
extern struct device * __init u8500_init_devices(struct ab8500_platform_data *ab8500);
extern struct device * __init u8500_init_devices(void);
extern void __init ux500_init_irq(void);
extern void __init ux500_init_late(void);

1
arch/arm/mach-vt8500/vt8500.c
View File

@ -173,6 +173,7 @@ static const char * const vt8500_dt_compat[] = {
"wm,wm8505",
"wm,wm8750",
"wm,wm8850",
NULL
};
DT_MACHINE_START(WMT_DT, "VIA/Wondermedia SoC (Device Tree Support)")

12
arch/arm/plat-orion/common.c
View File

@ -383,7 +383,7 @@ static struct resource orion_ge10_shared_resources[] = {
static struct platform_device orion_ge10_shared = {
.name = MV643XX_ETH_SHARED_NAME,
.id = 1,
.id = 2,
.dev = {
.platform_data = &orion_ge10_shared_data,
},
@ -398,8 +398,8 @@ static struct resource orion_ge10_resources[] = {
static struct platform_device orion_ge10 = {
.name = MV643XX_ETH_NAME,
.id = 1,
.num_resources = 2,
.id = 2,
.num_resources = 1,
.resource = orion_ge10_resources,
.dev = {
.coherent_dma_mask = DMA_BIT_MASK(32),
@ -432,7 +432,7 @@ static struct resource orion_ge11_shared_resources[] = {
static struct platform_device orion_ge11_shared = {
.name = MV643XX_ETH_SHARED_NAME,
.id = 1,
.id = 3,
.dev = {
.platform_data = &orion_ge11_shared_data,
},
@ -447,8 +447,8 @@ static struct resource orion_ge11_resources[] = {
static struct platform_device orion_ge11 = {
.name = MV643XX_ETH_NAME,
.id = 1,
.num_resources = 2,
.id = 3,
.num_resources = 1,
.resource = orion_ge11_resources,
.dev = {
.coherent_dma_mask = DMA_BIT_MASK(32),

1
arch/arm/plat-orion/include/plat/common.h
View File

@ -10,6 +10,7 @@
#ifndef __PLAT_COMMON_H
#include <linux/mv643xx_eth.h>
#include <linux/platform_data/usb-ehci-orion.h>
struct dsa_platform_data;
struct mv_sata_platform_data;

5
arch/arm/plat-samsung/adc.c
View File

@ -381,11 +381,6 @@ static int s3c_adc_probe(struct platform_device *pdev)
}
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!regs) {
dev_err(dev, "failed to find registers\n");
return -ENXIO;
}
adc->regs = devm_ioremap_resource(dev, regs);
if (IS_ERR(adc->regs))
return PTR_ERR(adc->regs);

6
arch/arm/plat-samsung/devs.c
View File

@ -311,9 +311,9 @@ struct platform_device s5p_device_jpeg = {
#ifdef CONFIG_S5P_DEV_FIMD0
static struct resource s5p_fimd0_resource[] = {
[0] = DEFINE_RES_MEM(S5P_PA_FIMD0, SZ_32K),
[1] = DEFINE_RES_IRQ(IRQ_FIMD0_VSYNC),
[2] = DEFINE_RES_IRQ(IRQ_FIMD0_FIFO),
[3] = DEFINE_RES_IRQ(IRQ_FIMD0_SYSTEM),
[1] = DEFINE_RES_IRQ_NAMED(IRQ_FIMD0_VSYNC, "vsync"),
[2] = DEFINE_RES_IRQ_NAMED(IRQ_FIMD0_FIFO, "fifo"),
[3] = DEFINE_RES_IRQ_NAMED(IRQ_FIMD0_SYSTEM, "lcd_sys"),
};
struct platform_device s5p_device_fimd0 = {

2
arch/arm/vfp/entry.S
View File

@ -60,7 +60,7 @@ ENTRY(vfp_testing_entry)
str r11, [r10, #TI_PREEMPT]
#endif
ldr r0, VFP_arch_address
str r5, [r0] @ known non-zero value
str r0, [r0] @ set to non-zero value
mov pc, r9 @ we have handled the fault
ENDPROC(vfp_testing_entry)

33
arch/arm/xen/enlighten.c
View File

@ -152,11 +152,12 @@ int xen_unmap_domain_mfn_range(struct vm_area_struct *vma,
}
EXPORT_SYMBOL_GPL(xen_unmap_domain_mfn_range);
static int __init xen_secondary_init(unsigned int cpu)
static void __init xen_percpu_init(void *unused)
{
struct vcpu_register_vcpu_info info;
struct vcpu_info *vcpup;
int err;
int cpu = get_cpu();
pr_info("Xen: initializing cpu%d\n", cpu);
vcpup = per_cpu_ptr(xen_vcpu_info, cpu);
@ -165,14 +166,10 @@ static int __init xen_secondary_init(unsigned int cpu)
info.offset = offset_in_page(vcpup);
err = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_info, cpu, &info);
if (err) {
pr_debug("register_vcpu_info failed: err=%d\n", err);
} else {
/* This cpu is using the registered vcpu info, even if
later ones fail to. */
per_cpu(xen_vcpu, cpu) = vcpup;
}
return 0;
BUG_ON(err);
per_cpu(xen_vcpu, cpu) = vcpup;
enable_percpu_irq(xen_events_irq, 0);
}
static void xen_restart(char str, const char *cmd)
@ -208,7 +205,6 @@ static int __init xen_guest_init(void)
const char *version = NULL;
const char *xen_prefix = "xen,xen-";
struct resource res;
int i;
node = of_find_compatible_node(NULL, NULL, "xen,xen");
if (!node) {
@ -265,19 +261,23 @@ static int __init xen_guest_init(void)
sizeof(struct vcpu_info));
if (xen_vcpu_info == NULL)
return -ENOMEM;
for_each_online_cpu(i)
xen_secondary_init(i);
gnttab_init();
if (!xen_initial_domain())
xenbus_probe(NULL);
return 0;
}
core_initcall(xen_guest_init);
static int __init xen_pm_init(void)
{
pm_power_off = xen_power_off;
arm_pm_restart = xen_restart;
return 0;
}
core_initcall(xen_guest_init);
subsys_initcall(xen_pm_init);
static irqreturn_t xen_arm_callback(int irq, void *arg)
{
@ -285,11 +285,6 @@ static irqreturn_t xen_arm_callback(int irq, void *arg)
return IRQ_HANDLED;
}
static __init void xen_percpu_enable_events(void *unused)
{
enable_percpu_irq(xen_events_irq, 0);
}
static int __init xen_init_events(void)
{
if (!xen_domain() || xen_events_irq < 0)
@ -303,7 +298,7 @@ static int __init xen_init_events(void)
return -EINVAL;
}
on_each_cpu(xen_percpu_enable_events, NULL, 0);
on_each_cpu(xen_percpu_init, NULL, 0);
return 0;
}

2
arch/arm64/Kconfig
View File

@ -122,8 +122,6 @@ endmenu
menu "Kernel Features"
source "kernel/time/Kconfig"
config ARM64_64K_PAGES
bool "Enable 64KB pages support"
help

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

@ -82,7 +82,7 @@
.macro enable_dbg_if_not_stepping, tmp
mrs \tmp, mdscr_el1
tbnz \tmp, #1, 9990f
tbnz \tmp, #0, 9990f
enable_dbg
9990:
.endm

1
arch/arm64/kernel/arm64ksyms.c
View File

@ -34,6 +34,7 @@ EXPORT_SYMBOL(__strnlen_user);
EXPORT_SYMBOL(__strncpy_from_user);
EXPORT_SYMBOL(copy_page);
EXPORT_SYMBOL(clear_page);
EXPORT_SYMBOL(__copy_from_user);
EXPORT_SYMBOL(__copy_to_user);

2
arch/arm64/kernel/debug-monitors.c
View File

@ -136,8 +136,6 @@ void disable_debug_monitors(enum debug_el el)
*/
static void clear_os_lock(void *unused)
{
asm volatile("msr mdscr_el1, %0" : : "r" (0));
isb();
asm volatile("msr oslar_el1, %0" : : "r" (0));
isb();
}

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