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Merge branch 'fix/misc' into topic/misc

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Takashi Iwai 2010-10-11 13:45:22 +02:00
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8
CREDITS
View File

@ -3554,12 +3554,12 @@ E: cvance@nai.com
D: portions of the Linux Security Module (LSM) framework and security modules
N: Petr Vandrovec
E: vandrove@vc.cvut.cz
E: petr@vandrovec.name
D: Small contributions to ncpfs
D: Matrox framebuffer driver
S: Chudenicka 8
S: 10200 Prague 10, Hostivar
S: Czech Republic
S: 21513 Conradia Ct
S: Cupertino, CA 95014
S: USA
N: Thibaut Varene
E: T-Bone@parisc-linux.org

7
Documentation/hwmon/sysfs-interface
View File

@ -91,12 +91,11 @@ name The chip name.
I2C devices get this attribute created automatically.
RO
update_rate The rate at which the chip will update readings.
update_interval The interval at which the chip will update readings.
Unit: millisecond
RW
Some devices have a variable update rate. This attribute
can be used to change the update rate to the desired
frequency.
Some devices have a variable update rate or interval.
This attribute can be used to change it to the desired value.
************

2
Documentation/power/regulator/overview.txt
View File

@ -13,7 +13,7 @@ regulators (where voltage output is controllable) and current sinks (where
current limit is controllable).
(C) 2008 Wolfson Microelectronics PLC.
Author: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Author: Liam Girdwood <lrg@slimlogic.co.uk>
Nomenclature

380
Documentation/workqueue.txt Normal file
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@ -0,0 +1,380 @@
Concurrency Managed Workqueue (cmwq)
September, 2010 Tejun Heo <tj@kernel.org>
Florian Mickler <florian@mickler.org>
CONTENTS
1. Introduction
2. Why cmwq?
3. The Design
4. Application Programming Interface (API)
5. Example Execution Scenarios
6. Guidelines
1. Introduction
There are many cases where an asynchronous process execution context
is needed and the workqueue (wq) API is the most commonly used
mechanism for such cases.
When such an asynchronous execution context is needed, a work item
describing which function to execute is put on a queue. An
independent thread serves as the asynchronous execution context. The
queue is called workqueue and the thread is called worker.
While there are work items on the workqueue the worker executes the
functions associated with the work items one after the other. When
there is no work item left on the workqueue the worker becomes idle.
When a new work item gets queued, the worker begins executing again.
2. Why cmwq?
In the original wq implementation, a multi threaded (MT) wq had one
worker thread per CPU and a single threaded (ST) wq had one worker
thread system-wide. A single MT wq needed to keep around the same
number of workers as the number of CPUs. The kernel grew a lot of MT
wq users over the years and with the number of CPU cores continuously
rising, some systems saturated the default 32k PID space just booting
up.
Although MT wq wasted a lot of resource, the level of concurrency
provided was unsatisfactory. The limitation was common to both ST and
MT wq albeit less severe on MT. Each wq maintained its own separate
worker pool. A MT wq could provide only one execution context per CPU
while a ST wq one for the whole system. Work items had to compete for
those very limited execution contexts leading to various problems
including proneness to deadlocks around the single execution context.
The tension between the provided level of concurrency and resource
usage also forced its users to make unnecessary tradeoffs like libata
choosing to use ST wq for polling PIOs and accepting an unnecessary
limitation that no two polling PIOs can progress at the same time. As
MT wq don't provide much better concurrency, users which require
higher level of concurrency, like async or fscache, had to implement
their own thread pool.
Concurrency Managed Workqueue (cmwq) is a reimplementation of wq with
focus on the following goals.
* Maintain compatibility with the original workqueue API.
* Use per-CPU unified worker pools shared by all wq to provide
flexible level of concurrency on demand without wasting a lot of
resource.
* Automatically regulate worker pool and level of concurrency so that
the API users don't need to worry about such details.
3. The Design
In order to ease the asynchronous execution of functions a new
abstraction, the work item, is introduced.
A work item is a simple struct that holds a pointer to the function
that is to be executed asynchronously. Whenever a driver or subsystem
wants a function to be executed asynchronously it has to set up a work
item pointing to that function and queue that work item on a
workqueue.
Special purpose threads, called worker threads, execute the functions
off of the queue, one after the other. If no work is queued, the
worker threads become idle. These worker threads are managed in so
called thread-pools.
The cmwq design differentiates between the user-facing workqueues that
subsystems and drivers queue work items on and the backend mechanism
which manages thread-pool and processes the queued work items.
The backend is called gcwq. There is one gcwq for each possible CPU
and one gcwq to serve work items queued on unbound workqueues.
Subsystems and drivers can create and queue work items through special
workqueue API functions as they see fit. They can influence some
aspects of the way the work items are executed by setting flags on the
workqueue they are putting the work item on. These flags include
things like CPU locality, reentrancy, concurrency limits and more. To
get a detailed overview refer to the API description of
alloc_workqueue() below.
When a work item is queued to a workqueue, the target gcwq is
determined according to the queue parameters and workqueue attributes
and appended on the shared worklist of the gcwq. For example, unless
specifically overridden, a work item of a bound workqueue will be
queued on the worklist of exactly that gcwq that is associated to the
CPU the issuer is running on.
For any worker pool implementation, managing the concurrency level
(how many execution contexts are active) is an important issue. cmwq
tries to keep the concurrency at a minimal but sufficient level.
Minimal to save resources and sufficient in that the system is used at
its full capacity.
Each gcwq bound to an actual CPU implements concurrency management by
hooking into the scheduler. The gcwq is notified whenever an active
worker wakes up or sleeps and keeps track of the number of the
currently runnable workers. Generally, work items are not expected to
hog a CPU and consume many cycles. That means maintaining just enough
concurrency to prevent work processing from stalling should be
optimal. As long as there are one or more runnable workers on the
CPU, the gcwq doesn't start execution of a new work, but, when the
last running worker goes to sleep, it immediately schedules a new
worker so that the CPU doesn't sit idle while there are pending work
items. This allows using a minimal number of workers without losing
execution bandwidth.
Keeping idle workers around doesn't cost other than the memory space
for kthreads, so cmwq holds onto idle ones for a while before killing
them.
For an unbound wq, the above concurrency management doesn't apply and
the gcwq for the pseudo unbound CPU tries to start executing all work
items as soon as possible. The responsibility of regulating
concurrency level is on the users. There is also a flag to mark a
bound wq to ignore the concurrency management. Please refer to the
API section for details.
Forward progress guarantee relies on that workers can be created when
more execution contexts are necessary, which in turn is guaranteed
through the use of rescue workers. All work items which might be used
on code paths that handle memory reclaim are required to be queued on
wq's that have a rescue-worker reserved for execution under memory
pressure. Else it is possible that the thread-pool deadlocks waiting
for execution contexts to free up.
4. Application Programming Interface (API)
alloc_workqueue() allocates a wq. The original create_*workqueue()
functions are deprecated and scheduled for removal. alloc_workqueue()
takes three arguments - @name, @flags and @max_active. @name is the
name of the wq and also used as the name of the rescuer thread if
there is one.
A wq no longer manages execution resources but serves as a domain for
forward progress guarantee, flush and work item attributes. @flags
and @max_active control how work items are assigned execution
resources, scheduled and executed.
@flags:
WQ_NON_REENTRANT
By default, a wq guarantees non-reentrance only on the same
CPU. A work item may not be executed concurrently on the same
CPU by multiple workers but is allowed to be executed
concurrently on multiple CPUs. This flag makes sure
non-reentrance is enforced across all CPUs. Work items queued
to a non-reentrant wq are guaranteed to be executed by at most
one worker system-wide at any given time.
WQ_UNBOUND
Work items queued to an unbound wq are served by a special
gcwq which hosts workers which are not bound to any specific
CPU. This makes the wq behave as a simple execution context
provider without concurrency management. The unbound gcwq
tries to start execution of work items as soon as possible.
Unbound wq sacrifices locality but is useful for the following
cases.
* Wide fluctuation in the concurrency level requirement is
expected and using bound wq may end up creating large number
of mostly unused workers across different CPUs as the issuer
hops through different CPUs.
* Long running CPU intensive workloads which can be better
managed by the system scheduler.
WQ_FREEZEABLE
A freezeable wq participates in the freeze phase of the system
suspend operations. Work items on the wq are drained and no
new work item starts execution until thawed.
WQ_RESCUER
All wq which might be used in the memory reclaim paths _MUST_
have this flag set. This reserves one worker exclusively for
the execution of this wq under memory pressure.
WQ_HIGHPRI
Work items of a highpri wq are queued at the head of the
worklist of the target gcwq and start execution regardless of
the current concurrency level. In other words, highpri work
items will always start execution as soon as execution
resource is available.
Ordering among highpri work items is preserved - a highpri
work item queued after another highpri work item will start
execution after the earlier highpri work item starts.
Although highpri work items are not held back by other
runnable work items, they still contribute to the concurrency
level. Highpri work items in runnable state will prevent
non-highpri work items from starting execution.
This flag is meaningless for unbound wq.
WQ_CPU_INTENSIVE
Work items of a CPU intensive wq do not contribute to the
concurrency level. In other words, runnable CPU intensive
work items will not prevent other work items from starting
execution. This is useful for bound work items which are
expected to hog CPU cycles so that their execution is
regulated by the system scheduler.
Although CPU intensive work items don't contribute to the
concurrency level, start of their executions is still
regulated by the concurrency management and runnable
non-CPU-intensive work items can delay execution of CPU
intensive work items.
This flag is meaningless for unbound wq.
WQ_HIGHPRI | WQ_CPU_INTENSIVE
This combination makes the wq avoid interaction with
concurrency management completely and behave as a simple
per-CPU execution context provider. Work items queued on a
highpri CPU-intensive wq start execution as soon as resources
are available and don't affect execution of other work items.
@max_active:
@max_active determines the maximum number of execution contexts per
CPU which can be assigned to the work items of a wq. For example,
with @max_active of 16, at most 16 work items of the wq can be
executing at the same time per CPU.
Currently, for a bound wq, the maximum limit for @max_active is 512
and the default value used when 0 is specified is 256. For an unbound
wq, the limit is higher of 512 and 4 * num_possible_cpus(). These
values are chosen sufficiently high such that they are not the
limiting factor while providing protection in runaway cases.
The number of active work items of a wq is usually regulated by the
users of the wq, more specifically, by how many work items the users
may queue at the same time. Unless there is a specific need for
throttling the number of active work items, specifying '0' is
recommended.
Some users depend on the strict execution ordering of ST wq. The
combination of @max_active of 1 and WQ_UNBOUND is used to achieve this
behavior. Work items on such wq are always queued to the unbound gcwq
and only one work item can be active at any given time thus achieving
the same ordering property as ST wq.
5. Example Execution Scenarios
The following example execution scenarios try to illustrate how cmwq
behave under different configurations.
Work items w0, w1, w2 are queued to a bound wq q0 on the same CPU.
w0 burns CPU for 5ms then sleeps for 10ms then burns CPU for 5ms
again before finishing. w1 and w2 burn CPU for 5ms then sleep for
10ms.
Ignoring all other tasks, works and processing overhead, and assuming
simple FIFO scheduling, the following is one highly simplified version
of possible sequences of events with the original wq.
TIME IN MSECS EVENT
0 w0 starts and burns CPU
5 w0 sleeps
15 w0 wakes up and burns CPU
20 w0 finishes
20 w1 starts and burns CPU
25 w1 sleeps
35 w1 wakes up and finishes
35 w2 starts and burns CPU
40 w2 sleeps
50 w2 wakes up and finishes
And with cmwq with @max_active >= 3,
TIME IN MSECS EVENT
0 w0 starts and burns CPU
5 w0 sleeps
5 w1 starts and burns CPU
10 w1 sleeps
10 w2 starts and burns CPU
15 w2 sleeps
15 w0 wakes up and burns CPU
20 w0 finishes
20 w1 wakes up and finishes
25 w2 wakes up and finishes
If @max_active == 2,
TIME IN MSECS EVENT
0 w0 starts and burns CPU
5 w0 sleeps
5 w1 starts and burns CPU
10 w1 sleeps
15 w0 wakes up and burns CPU
20 w0 finishes
20 w1 wakes up and finishes
20 w2 starts and burns CPU
25 w2 sleeps
35 w2 wakes up and finishes
Now, let's assume w1 and w2 are queued to a different wq q1 which has
WQ_HIGHPRI set,
TIME IN MSECS EVENT
0 w1 and w2 start and burn CPU
5 w1 sleeps
10 w2 sleeps
10 w0 starts and burns CPU
15 w0 sleeps
15 w1 wakes up and finishes
20 w2 wakes up and finishes
25 w0 wakes up and burns CPU
30 w0 finishes
If q1 has WQ_CPU_INTENSIVE set,
TIME IN MSECS EVENT
0 w0 starts and burns CPU
5 w0 sleeps
5 w1 and w2 start and burn CPU
10 w1 sleeps
15 w2 sleeps
15 w0 wakes up and burns CPU
20 w0 finishes
20 w1 wakes up and finishes
25 w2 wakes up and finishes
6. Guidelines
* Do not forget to use WQ_RESCUER if a wq may process work items which
are used during memory reclaim. Each wq with WQ_RESCUER set has one
rescuer thread reserved for it. If there is dependency among
multiple work items used during memory reclaim, they should be
queued to separate wq each with WQ_RESCUER.
* Unless strict ordering is required, there is no need to use ST wq.
* Unless there is a specific need, using 0 for @max_active is
recommended. In most use cases, concurrency level usually stays
well under the default limit.
* A wq serves as a domain for forward progress guarantee (WQ_RESCUER),
flush and work item attributes. Work items which are not involved
in memory reclaim and don't need to be flushed as a part of a group
of work items, and don't require any special attribute, can use one
of the system wq. There is no difference in execution
characteristics between using a dedicated wq and a system wq.
* Unless work items are expected to consume a huge amount of CPU
cycles, using a bound wq is usually beneficial due to the increased
level of locality in wq operations and work item execution.

49
MAINTAINERS
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@ -962,6 +962,13 @@ W: http://www.fluff.org/ben/linux/
S: Maintained
F: arch/arm/mach-s3c6410/
ARM/S5P ARM ARCHITECTURES
M: Kukjin Kim <kgene.kim@samsung.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-s5p*/
ARM/SHMOBILE ARM ARCHITECTURE
M: Paul Mundt <lethal@linux-sh.org>
M: Magnus Damm <magnus.damm@gmail.com>
@ -1135,7 +1142,7 @@ ATLX ETHERNET DRIVERS
M: Jay Cliburn <jcliburn@gmail.com>
M: Chris Snook <chris.snook@gmail.com>
M: Jie Yang <jie.yang@atheros.com>
L: atl1-devel@lists.sourceforge.net
L: netdev@vger.kernel.org
W: http://sourceforge.net/projects/atl1
W: http://atl1.sourceforge.net
S: Maintained
@ -1220,7 +1227,7 @@ F: drivers/auxdisplay/
F: include/linux/cfag12864b.h
AVR32 ARCHITECTURE
M: Haavard Skinnemoen <hskinnemoen@atmel.com>
M: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
W: http://www.atmel.com/products/AVR32/
W: http://avr32linux.org/
W: http://avrfreaks.net/
@ -1228,7 +1235,7 @@ S: Supported
F: arch/avr32/
AVR32/AT32AP MACHINE SUPPORT
M: Haavard Skinnemoen <hskinnemoen@atmel.com>
M: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
S: Supported
F: arch/avr32/mach-at32ap/
@ -2199,6 +2206,12 @@ W: http://acpi4asus.sf.net
S: Maintained
F: drivers/platform/x86/eeepc-laptop.c
EFIFB FRAMEBUFFER DRIVER
L: linux-fbdev@vger.kernel.org
M: Peter Jones <pjones@redhat.com>
S: Maintained
F: drivers/video/efifb.c
EFS FILESYSTEM
W: http://aeschi.ch.eu.org/efs/
S: Orphan
@ -2657,9 +2670,14 @@ S: Maintained
F: drivers/media/video/gspca/
HARDWARE MONITORING
M: Jean Delvare <khali@linux-fr.org>
M: Guenter Roeck <guenter.roeck@ericsson.com>
L: lm-sensors@lm-sensors.org
W: http://www.lm-sensors.org/
S: Orphan
T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-hwmon/
T: quilt kernel.org/pub/linux/kernel/people/groeck/linux-staging/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
S: Maintained
F: Documentation/hwmon/
F: drivers/hwmon/
F: include/linux/hwmon*.h
@ -3770,9 +3788,8 @@ W: http://www.syskonnect.com
S: Supported
MATROX FRAMEBUFFER DRIVER
M: Petr Vandrovec <vandrove@vc.cvut.cz>
L: linux-fbdev@vger.kernel.org
S: Maintained
S: Orphan
F: drivers/video/matrox/matroxfb_*
F: include/linux/matroxfb.h
@ -3896,10 +3913,8 @@ F: Documentation/serial/moxa-smartio
F: drivers/char/mxser.*
MSI LAPTOP SUPPORT
M: Lennart Poettering <mzxreary@0pointer.de>
M: Lee, Chun-Yi <jlee@novell.com>
L: platform-driver-x86@vger.kernel.org
W: https://tango.0pointer.de/mailman/listinfo/s270-linux
W: http://0pointer.de/lennart/tchibo.html
S: Maintained
F: drivers/platform/x86/msi-laptop.c
@ -3916,8 +3931,10 @@ S: Supported
F: drivers/mfd/
MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
S: Orphan
M: Chris Ball <cjb@laptop.org>
L: linux-mmc@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
S: Maintained
F: drivers/mmc/
F: include/linux/mmc/
@ -3939,7 +3956,7 @@ F: drivers/char/isicom.c
F: include/linux/isicom.h
MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
M: Felipe Balbi <felipe.balbi@nokia.com>
M: Felipe Balbi <balbi@ti.com>
L: linux-usb@vger.kernel.org
T: git git://gitorious.org/usb/usb.git
S: Maintained
@ -3959,8 +3976,8 @@ S: Maintained
F: drivers/net/natsemi.c
NCP FILESYSTEM
M: Petr Vandrovec <vandrove@vc.cvut.cz>
S: Maintained
M: Petr Vandrovec <petr@vandrovec.name>
S: Odd Fixes
F: fs/ncpfs/
NCR DUAL 700 SCSI DRIVER (MICROCHANNEL)
@ -4237,7 +4254,7 @@ S: Maintained
F: drivers/char/hw_random/omap-rng.c
OMAP USB SUPPORT
M: Felipe Balbi <felipe.balbi@nokia.com>
M: Felipe Balbi <balbi@ti.com>
M: David Brownell <dbrownell@users.sourceforge.net>
L: linux-usb@vger.kernel.org
L: linux-omap@vger.kernel.org
@ -5088,8 +5105,10 @@ S: Maintained
F: drivers/mmc/host/sdricoh_cs.c
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) DRIVER
S: Orphan
M: Chris Ball <cjb@laptop.org>
L: linux-mmc@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
S: Maintained
F: drivers/mmc/host/sdhci.*
SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF)

2
Makefile
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@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 36
EXTRAVERSION = -rc4
EXTRAVERSION = -rc7
NAME = Sheep on Meth
# *DOCUMENTATION*

4
arch/Kconfig
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@ -32,8 +32,9 @@ config HAVE_OPROFILE
config KPROBES
bool "Kprobes"
depends on KALLSYMS && MODULES
depends on MODULES
depends on HAVE_KPROBES
select KALLSYMS
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
@ -45,7 +46,6 @@ config OPTPROBES
def_bool y
depends on KPROBES && HAVE_OPTPROBES
depends on !PREEMPT
select KALLSYMS_ALL
config HAVE_EFFICIENT_UNALIGNED_ACCESS
bool

2
arch/alpha/include/asm/cacheflush.h
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@ -43,6 +43,8 @@ extern void smp_imb(void);
/* ??? Ought to use this in arch/alpha/kernel/signal.c too. */
#ifndef CONFIG_SMP
#include <linux/sched.h>
extern void __load_new_mm_context(struct mm_struct *);
static inline void
flush_icache_user_range(struct vm_area_struct *vma, struct page *page,

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

@ -449,10 +449,13 @@
#define __NR_pwritev 491
#define __NR_rt_tgsigqueueinfo 492
#define __NR_perf_event_open 493
#define __NR_fanotify_init 494
#define __NR_fanotify_mark 495
#define __NR_prlimit64 496
#ifdef __KERNEL__
#define NR_SYSCALLS 494
#define NR_SYSCALLS 497
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
@ -463,6 +466,7 @@
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
/* "Conditional" syscalls. What we want is

81
arch/alpha/kernel/entry.S
View File

@ -73,8 +73,6 @@
ldq $20, HAE_REG($19); \
stq $21, HAE_CACHE($19); \
stq $21, 0($20); \
ldq $0, 0($sp); \
ldq $1, 8($sp); \
99:; \
ldq $19, 72($sp); \
ldq $20, 80($sp); \
@ -316,19 +314,24 @@ ret_from_sys_call:
cmovne $26, 0, $19 /* $19 = 0 => non-restartable */
ldq $0, SP_OFF($sp)
and $0, 8, $0
beq $0, restore_all
ret_from_reschedule:
beq $0, ret_to_kernel
ret_to_user:
/* Make sure need_resched and sigpending don't change between
sampling and the rti. */
lda $16, 7
call_pal PAL_swpipl
ldl $5, TI_FLAGS($8)
and $5, _TIF_WORK_MASK, $2
bne $5, work_pending
bne $2, work_pending
restore_all:
RESTORE_ALL
call_pal PAL_rti
ret_to_kernel:
lda $16, 7
call_pal PAL_swpipl
br restore_all
.align 3
$syscall_error:
/*
@ -363,7 +366,7 @@ $ret_success:
* $8: current.
* $19: The old syscall number, or zero if this is not a return
* from a syscall that errored and is possibly restartable.
* $20: Error indication.
* $20: The old a3 value
*/
.align 4
@ -392,12 +395,18 @@ $work_resched:
$work_notifysig:
mov $sp, $16
br $1, do_switch_stack
bsr $1, do_switch_stack
mov $sp, $17
mov $5, $18
mov $19, $9 /* save old syscall number */
mov $20, $10 /* save old a3 */
and $5, _TIF_SIGPENDING, $2
cmovne $2, 0, $9 /* we don't want double syscall restarts */
jsr $26, do_notify_resume
mov $9, $19
mov $10, $20
bsr $1, undo_switch_stack
br restore_all
br ret_to_user
.end work_pending
/*
@ -430,6 +439,7 @@ strace:
beq $1, 1f
ldq $27, 0($2)
1: jsr $26, ($27), sys_gettimeofday
ret_from_straced:
ldgp $gp, 0($26)
/* check return.. */
@ -650,7 +660,7 @@ kernel_thread:
/* We don't actually care for a3 success widgetry in the kernel.
Not for positive errno values. */
stq $0, 0($sp) /* $0 */
br restore_all
br ret_to_kernel
.end kernel_thread
/*
@ -757,11 +767,15 @@ sys_vfork:
.ent sys_sigreturn
sys_sigreturn:
.prologue 0
lda $9, ret_from_straced
cmpult $26, $9, $9
mov $sp, $17
lda $18, -SWITCH_STACK_SIZE($sp)
lda $sp, -SWITCH_STACK_SIZE($sp)
jsr $26, do_sigreturn
br $1, undo_switch_stack
bne $9, 1f
jsr $26, syscall_trace
1: br $1, undo_switch_stack
br ret_from_sys_call
.end sys_sigreturn
@ -770,46 +784,18 @@ sys_sigreturn:
.ent sys_rt_sigreturn
sys_rt_sigreturn:
.prologue 0
lda $9, ret_from_straced
cmpult $26, $9, $9
mov $sp, $17
lda $18, -SWITCH_STACK_SIZE($sp)
lda $sp, -SWITCH_STACK_SIZE($sp)
jsr $26, do_rt_sigreturn
br $1, undo_switch_stack
bne $9, 1f
jsr $26, syscall_trace
1: br $1, undo_switch_stack
br ret_from_sys_call
.end sys_rt_sigreturn
.align 4
.globl sys_sigsuspend
.ent sys_sigsuspend
sys_sigsuspend:
.prologue 0
mov $sp, $17
br $1, do_switch_stack
mov $sp, $18
subq $sp, 16, $sp
stq $26, 0($sp)
jsr $26, do_sigsuspend
ldq $26, 0($sp)
lda $sp, SWITCH_STACK_SIZE+16($sp)
ret
.end sys_sigsuspend
.align 4
.globl sys_rt_sigsuspend
.ent sys_rt_sigsuspend
sys_rt_sigsuspend:
.prologue 0
mov $sp, $18
br $1, do_switch_stack
mov $sp, $19
subq $sp, 16, $sp
stq $26, 0($sp)
jsr $26, do_rt_sigsuspend
ldq $26, 0($sp)
lda $sp, SWITCH_STACK_SIZE+16($sp)
ret
.end sys_rt_sigsuspend
.align 4
.globl sys_sethae
.ent sys_sethae
@ -928,15 +914,6 @@ sys_execve:
jmp $31, do_sys_execve
.end sys_execve
.align 4
.globl osf_sigprocmask
.ent osf_sigprocmask
osf_sigprocmask:
.prologue 0
mov $sp, $18
jmp $31, sys_osf_sigprocmask
.end osf_sigprocmask
.align 4
.globl alpha_ni_syscall
.ent alpha_ni_syscall

12
arch/alpha/kernel/err_ev6.c
View File

@ -90,11 +90,13 @@ static int
ev6_parse_cbox(u64 c_addr, u64 c1_syn, u64 c2_syn,
u64 c_stat, u64 c_sts, int print)
{
char *sourcename[] = { "UNKNOWN", "UNKNOWN", "UNKNOWN",
"MEMORY", "BCACHE", "DCACHE",
"BCACHE PROBE", "BCACHE PROBE" };
char *streamname[] = { "D", "I" };
char *bitsname[] = { "SINGLE", "DOUBLE" };
static const char * const sourcename[] = {
"UNKNOWN", "UNKNOWN", "UNKNOWN",
"MEMORY", "BCACHE", "DCACHE",
"BCACHE PROBE", "BCACHE PROBE"
};
static const char * const streamname[] = { "D", "I" };
static const char * const bitsname[] = { "SINGLE", "DOUBLE" };
int status = MCHK_DISPOSITION_REPORT;
int source = -1, stream = -1, bits = -1;

33
arch/alpha/kernel/err_marvel.c
View File

@ -589,22 +589,23 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt)
static void
marvel_print_pox_trans_sum(u64 trans_sum)
{
char *pcix_cmd[] = { "Interrupt Acknowledge",
"Special Cycle",
"I/O Read",
"I/O Write",
"Reserved",
"Reserved / Device ID Message",
"Memory Read",
"Memory Write",
"Reserved / Alias to Memory Read Block",
"Reserved / Alias to Memory Write Block",
"Configuration Read",
"Configuration Write",
"Memory Read Multiple / Split Completion",
"Dual Address Cycle",
"Memory Read Line / Memory Read Block",
"Memory Write and Invalidate / Memory Write Block"
static const char * const pcix_cmd[] = {
"Interrupt Acknowledge",
"Special Cycle",
"I/O Read",
"I/O Write",
"Reserved",
"Reserved / Device ID Message",
"Memory Read",
"Memory Write",
"Reserved / Alias to Memory Read Block",
"Reserved / Alias to Memory Write Block",
"Configuration Read",
"Configuration Write",
"Memory Read Multiple / Split Completion",
"Dual Address Cycle",
"Memory Read Line / Memory Read Block",
"Memory Write and Invalidate / Memory Write Block"
};
#define IO7__POX_TRANSUM__PCI_ADDR__S (0)

35
arch/alpha/kernel/err_titan.c
View File

@ -75,8 +75,12 @@ titan_parse_p_serror(int which, u64 serror, int print)
int status = MCHK_DISPOSITION_REPORT;
#ifdef CONFIG_VERBOSE_MCHECK
char *serror_src[] = {"GPCI", "APCI", "AGP HP", "AGP LP"};
char *serror_cmd[] = {"DMA Read", "DMA RMW", "SGTE Read", "Reserved"};
static const char * const serror_src[] = {
"GPCI", "APCI", "AGP HP", "AGP LP"
};
static const char * const serror_cmd[] = {
"DMA Read", "DMA RMW", "SGTE Read", "Reserved"
};
#endif /* CONFIG_VERBOSE_MCHECK */
#define TITAN__PCHIP_SERROR__LOST_UECC (1UL << 0)
@ -140,14 +144,15 @@ titan_parse_p_perror(int which, int port, u64 perror, int print)
int status = MCHK_DISPOSITION_REPORT;
#ifdef CONFIG_VERBOSE_MCHECK
char *perror_cmd[] = { "Interrupt Acknowledge", "Special Cycle",
"I/O Read", "I/O Write",
"Reserved", "Reserved",
"Memory Read", "Memory Write",
"Reserved", "Reserved",
"Configuration Read", "Configuration Write",
"Memory Read Multiple", "Dual Address Cycle",
"Memory Read Line","Memory Write and Invalidate"
static const char * const perror_cmd[] = {
"Interrupt Acknowledge", "Special Cycle",
"I/O Read", "I/O Write",
"Reserved", "Reserved",
"Memory Read", "Memory Write",
"Reserved", "Reserved",
"Configuration Read", "Configuration Write",
"Memory Read Multiple", "Dual Address Cycle",
"Memory Read Line", "Memory Write and Invalidate"
};
#endif /* CONFIG_VERBOSE_MCHECK */
@ -273,11 +278,11 @@ titan_parse_p_agperror(int which, u64 agperror, int print)
int cmd, len;
unsigned long addr;
char *agperror_cmd[] = { "Read (low-priority)", "Read (high-priority)",
"Write (low-priority)",
"Write (high-priority)",
"Reserved", "Reserved",
"Flush", "Fence"
static const char * const agperror_cmd[] = {
"Read (low-priority)", "Read (high-priority)",
"Write (low-priority)", "Write (high-priority)",
"Reserved", "Reserved",
"Flush", "Fence"
};
#endif /* CONFIG_VERBOSE_MCHECK */

9
arch/alpha/kernel/osf_sys.c
View File

@ -15,7 +15,6 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/stddef.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
@ -69,7 +68,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
{
struct mm_struct *mm;
lock_kernel();
mm = current->mm;
mm->end_code = bss_start + bss_len;
mm->start_brk = bss_start + bss_len;
@ -78,7 +76,6 @@ SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start,
printk("set_program_attributes(%lx %lx %lx %lx)\n",
text_start, text_len, bss_start, bss_len);
#endif
unlock_kernel();
return 0;
}
@ -517,7 +514,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
long error;
int __user *min_buf_size_ptr;
lock_kernel();
switch (code) {
case PL_SET:
if (get_user(error, &args->set.nbytes))
@ -547,7 +543,6 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code,
error = -EOPNOTSUPP;
break;
};
unlock_kernel();
return error;
}
@ -594,7 +589,7 @@ SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss,
SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
{
char *sysinfo_table[] = {
const char *sysinfo_table[] = {
utsname()->sysname,
utsname()->nodename,
utsname()->release,
@ -606,7 +601,7 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count)
"dummy", /* secure RPC domain */
};
unsigned long offset;
char *res;
const char *res;
long len, err = -EINVAL;
offset = command-1;

2
arch/alpha/kernel/pci-sysfs.c
View File

@ -66,7 +66,7 @@ static int pci_mmap_resource(struct kobject *kobj,
{
struct pci_dev *pdev = to_pci_dev(container_of(kobj,
struct device, kobj));
struct resource *res = (struct resource *)attr->private;
struct resource *res = attr->private;
enum pci_mmap_state mmap_type;
struct pci_bus_region bar;
int i;

2
arch/alpha/kernel/process.c
View File

@ -356,7 +356,7 @@ dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
dest[27] = pt->r27;
dest[28] = pt->r28;
dest[29] = pt->gp;
dest[30] = rdusp();
dest[30] = ti == current_thread_info() ? rdusp() : ti->pcb.usp;
dest[31] = pt->pc;
/* Once upon a time this was the PS value. Which is stupid

95
arch/alpha/kernel/signal.c
View File

@ -41,46 +41,20 @@ static void do_signal(struct pt_regs *, struct switch_stack *,
/*
* The OSF/1 sigprocmask calling sequence is different from the
* C sigprocmask() sequence..
*
* how:
* 1 - SIG_BLOCK
* 2 - SIG_UNBLOCK
* 3 - SIG_SETMASK
*
* We change the range to -1 .. 1 in order to let gcc easily
* use the conditional move instructions.
*
* Note that we don't need to acquire the kernel lock for SMP
* operation, as all of this is local to this thread.
*/
SYSCALL_DEFINE3(osf_sigprocmask, int, how, unsigned long, newmask,
struct pt_regs *, regs)
SYSCALL_DEFINE2(osf_sigprocmask, int, how, unsigned long, newmask)
{
unsigned long oldmask = -EINVAL;
sigset_t oldmask;
sigset_t mask;
unsigned long res;
if ((unsigned long)how-1 <= 2) {
long sign = how-2; /* -1 .. 1 */
unsigned long block, unblock;
newmask &= _BLOCKABLE;
spin_lock_irq(&current->sighand->siglock);
oldmask = current->blocked.sig[0];
unblock = oldmask & ~newmask;
block = oldmask | newmask;
if (!sign)
block = unblock;
if (sign <= 0)
newmask = block;
if (_NSIG_WORDS > 1 && sign > 0)
sigemptyset(&current->blocked);
current->blocked.sig[0] = newmask;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
regs->r0 = 0; /* special no error return */
siginitset(&mask, newmask & _BLOCKABLE);
res = sigprocmask(how, &mask, &oldmask);
if (!res) {
force_successful_syscall_return();
res = oldmask.sig[0];
}
return oldmask;
return res;
}
SYSCALL_DEFINE3(osf_sigaction, int, sig,
@ -94,9 +68,9 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig,
old_sigset_t mask;
if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
__get_user(new_ka.sa.sa_flags, &act->sa_flags))
__get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
__get_user(mask, &act->sa_mask))
return -EFAULT;
__get_user(mask, &act->sa_mask);
siginitset(&new_ka.sa.sa_mask, mask);
new_ka.ka_restorer = NULL;
}
@ -106,9 +80,9 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig,
if (!ret && oact) {
if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
__put_user(old_ka.sa.sa_flags, &oact->sa_flags))
__put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
return -EFAULT;
__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
}
return ret;
@ -144,8 +118,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
/*
* Atomically swap in the new signal mask, and wait for a signal.
*/
asmlinkage int
do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
{
mask &= _BLOCKABLE;
spin_lock_irq(&current->sighand->siglock);
@ -154,41 +127,6 @@ do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw)
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
/* Indicate EINTR on return from any possible signal handler,
which will not come back through here, but via sigreturn. */
regs->r0 = EINTR;
regs->r19 = 1;
current->state = TASK_INTERRUPTIBLE;
schedule();
set_thread_flag(TIF_RESTORE_SIGMASK);
return -ERESTARTNOHAND;
}
asmlinkage int
do_rt_sigsuspend(sigset_t __user *uset, size_t sigsetsize,
struct pt_regs *regs, struct switch_stack *sw)
{
sigset_t set;
/* XXX: Don't preclude handling different sized sigset_t's. */
if (sigsetsize != sizeof(sigset_t))
return -EINVAL;
if (copy_from_user(&set, uset, sizeof(set)))
return -EFAULT;
sigdelsetmask(&set, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
current->saved_sigmask = current->blocked;
current->blocked = set;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
/* Indicate EINTR on return from any possible signal handler,
which will not come back through here, but via sigreturn. */
regs->r0 = EINTR;
regs->r19 = 1;
current->state = TASK_INTERRUPTIBLE;
schedule();
set_thread_flag(TIF_RESTORE_SIGMASK);
@ -239,6 +177,8 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
unsigned long usp;
long i, err = __get_user(regs->pc, &sc->sc_pc);
current_thread_info()->restart_block.fn = do_no_restart_syscall;
sw->r26 = (unsigned long) ret_from_sys_call;
err |= __get_user(regs->r0, sc->sc_regs+0);
@ -591,7 +531,6 @@ syscall_restart(unsigned long r0, unsigned long r19,
regs->pc -= 4;
break;
case ERESTART_RESTARTBLOCK:
current_thread_info()->restart_block.fn = do_no_restart_syscall;
regs->r0 = EINTR;
break;
}

2
arch/alpha/kernel/srm_env.c
View File

@ -87,7 +87,7 @@ static int srm_env_proc_show(struct seq_file *m, void *v)
srm_env_t *entry;
char *page;
entry = (srm_env_t *)m->private;
entry = m->private;
page = (char *)__get_free_page(GFP_USER);
if (!page)
return -ENOMEM;

5
arch/alpha/kernel/systbls.S
View File

@ -58,7 +58,7 @@ sys_call_table:
.quad sys_open /* 45 */
.quad alpha_ni_syscall
.quad sys_getxgid
.quad osf_sigprocmask
.quad sys_osf_sigprocmask
.quad alpha_ni_syscall
.quad alpha_ni_syscall /* 50 */
.quad sys_acct
@ -512,6 +512,9 @@ sys_call_table:
.quad sys_pwritev
.quad sys_rt_tgsigqueueinfo
.quad sys_perf_event_open
.quad sys_fanotify_init
.quad sys_fanotify_mark /* 495 */
.quad sys_prlimit64
.size sys_call_table, . - sys_call_table
.type sys_call_table, @object

10
arch/alpha/kernel/time.c
View File

@ -191,16 +191,16 @@ irqreturn_t timer_interrupt(int irq, void *dev)
write_sequnlock(&xtime_lock);
#ifndef CONFIG_SMP
while (nticks--)
update_process_times(user_mode(get_irq_regs()));
#endif
if (test_perf_event_pending()) {
clear_perf_event_pending();
perf_event_do_pending();
}
#ifndef CONFIG_SMP
while (nticks--)
update_process_times(user_mode(get_irq_regs()));
#endif
return IRQ_HANDLED;
}

3
arch/alpha/kernel/traps.c
View File

@ -13,7 +13,6 @@
#include <linux/sched.h>
#include <linux/tty.h>
#include <linux/delay.h>
#include <linux/smp_lock.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/kallsyms.h>
@ -623,7 +622,6 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg,
return;
}
lock_kernel();
printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n",
pc, va, opcode, reg);
do_exit(SIGSEGV);
@ -646,7 +644,6 @@ got_exception:
* Yikes! No one to forward the exception to.
* Since the registers are in a weird format, dump them ourselves.
*/
lock_kernel();
printk("%s(%d): unhandled unaligned exception\n",
current->comm, task_pid_nr(current));

27
arch/arm/Kconfig
View File

@ -271,7 +271,6 @@ config ARCH_AT91
bool "Atmel AT91"
select ARCH_REQUIRE_GPIOLIB
select HAVE_CLK
select ARCH_USES_GETTIMEOFFSET
help
This enables support for systems based on the Atmel AT91RM9200,
AT91SAM9 and AT91CAP9 processors.
@ -1051,6 +1050,32 @@ config ARM_ERRATA_460075
ACTLR register. Note that setting specific bits in the ACTLR register
may not be available in non-secure mode.
config ARM_ERRATA_742230
bool "ARM errata: DMB operation may be faulty"
depends on CPU_V7 && SMP
help
This option enables the workaround for the 742230 Cortex-A9
(r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
between two write operations may not ensure the correct visibility
ordering of the two writes. This workaround sets a specific bit in
the diagnostic register of the Cortex-A9 which causes the DMB
instruction to behave as a DSB, ensuring the correct behaviour of
the two writes.
config ARM_ERRATA_742231
bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
depends on CPU_V7 && SMP
help
This option enables the workaround for the 742231 Cortex-A9
(r2p0..r2p2) erratum. Under certain conditions, specific to the
Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
accessing some data located in the same cache line, may get corrupted
data due to bad handling of the address hazard when the line gets
replaced from one of the CPUs at the same time as another CPU is
accessing it. This workaround sets specific bits in the diagnostic
register of the Cortex-A9 which reduces the linefill issuing
capabilities of the processor.
config PL310_ERRATA_588369
bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
depends on CACHE_L2X0 && ARCH_OMAP4

2
arch/arm/boot/compressed/Makefile
View File

@ -116,5 +116,5 @@ CFLAGS_font.o := -Dstatic=
$(obj)/font.c: $(FONTC)
$(call cmd,shipped)
$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile .config
$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG)
@sed "$(SEDFLAGS)" < $< > $@

8
arch/arm/common/it8152.c
View File

@ -271,6 +271,14 @@ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
((dma_addr + size - PHYS_OFFSET) >= SZ_64M);
}
int dma_set_coherent_mask(struct device *dev, u64 mask)
{
if (mask >= PHYS_OFFSET + SZ_64M - 1)
return 0;
return -EIO;
}
int __init it8152_pci_setup(int nr, struct pci_sys_data *sys)
{
it8152_io.start = IT8152_IO_BASE + 0x12000;

4
arch/arm/include/asm/pgtable.h
View File

@ -317,6 +317,10 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
#define pgprot_dmacoherent(prot) \
__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_BUFFERABLE)
#define __HAVE_PHYS_MEM_ACCESS_PROT
struct file;
extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot);
#else
#define pgprot_dmacoherent(prot) \
__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_UNCACHED)

4
arch/arm/kernel/entry-common.S
View File

@ -48,6 +48,8 @@ work_pending:
beq no_work_pending
mov r0, sp @ 'regs'
mov r2, why @ 'syscall'
tst r1, #_TIF_SIGPENDING @ delivering a signal?
movne why, #0 @ prevent further restarts
bl do_notify_resume
b ret_slow_syscall @ Check work again
@ -418,11 +420,13 @@ ENDPROC(sys_clone_wrapper)
sys_sigreturn_wrapper:
add r0, sp, #S_OFF
mov why, #0 @ prevent syscall restart handling
b sys_sigreturn
ENDPROC(sys_sigreturn_wrapper)
sys_rt_sigreturn_wrapper:
add r0, sp, #S_OFF
mov why, #0 @ prevent syscall restart handling
b sys_rt_sigreturn
ENDPROC(sys_rt_sigreturn_wrapper)

4
arch/arm/mach-at91/at91sam9g45_devices.c
View File

@ -426,7 +426,7 @@ static struct i2c_gpio_platform_data pdata_i2c0 = {
.sda_is_open_drain = 1,
.scl_pin = AT91_PIN_PA21,
.scl_is_open_drain = 1,
.udelay = 2, /* ~100 kHz */
.udelay = 5, /* ~100 kHz */
};
static struct platform_device at91sam9g45_twi0_device = {
@ -440,7 +440,7 @@ static struct i2c_gpio_platform_data pdata_i2c1 = {
.sda_is_open_drain = 1,
.scl_pin = AT91_PIN_PB11,
.scl_is_open_drain = 1,
.udelay = 2, /* ~100 kHz */
.udelay = 5, /* ~100 kHz */
};
static struct platform_device at91sam9g45_twi1_device = {

3
arch/arm/mach-davinci/dm355.c
View File

@ -769,8 +769,7 @@ static struct map_desc dm355_io_desc[] = {
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(0x00010000),
.length = SZ_32K,
/* MT_MEMORY_NONCACHED requires supersection alignment */
.type = MT_DEVICE,
.type = MT_MEMORY_NONCACHED,
},
};

3
arch/arm/mach-davinci/dm365.c
View File

@ -969,8 +969,7 @@ static struct map_desc dm365_io_desc[] = {
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(0x00010000),
.length = SZ_32K,
/* MT_MEMORY_NONCACHED requires supersection alignment */
.type = MT_DEVICE,
.type = MT_MEMORY_NONCACHED,
},
};

3
arch/arm/mach-davinci/dm644x.c
View File

@ -653,8 +653,7 @@ static struct map_desc dm644x_io_desc[] = {
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(0x00008000),
.length = SZ_16K,
/* MT_MEMORY_NONCACHED requires supersection alignment */
.type = MT_DEVICE,
.type = MT_MEMORY_NONCACHED,
},
};

3
arch/arm/mach-davinci/dm646x.c
View File

@ -737,8 +737,7 @@ static struct map_desc dm646x_io_desc[] = {
.virtual = SRAM_VIRT,
.pfn = __phys_to_pfn(0x00010000),
.length = SZ_32K,
/* MT_MEMORY_NONCACHED requires supersection alignment */
.type = MT_DEVICE,
.type = MT_MEMORY_NONCACHED,
},
};

6
arch/arm/mach-dove/include/mach/io.h
View File

@ -13,8 +13,8 @@
#define IO_SPACE_LIMIT 0xffffffff
#define __io(a) ((void __iomem *)(((a) - DOVE_PCIE0_IO_PHYS_BASE) +\
DOVE_PCIE0_IO_VIRT_BASE))
#define __mem_pci(a) (a)
#define __io(a) ((void __iomem *)(((a) - DOVE_PCIE0_IO_BUS_BASE) + \
DOVE_PCIE0_IO_VIRT_BASE))
#define __mem_pci(a) (a)
#endif

8
arch/arm/mach-ixp4xx/common-pci.c
View File

@ -503,6 +503,14 @@ struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys);
}
int dma_set_coherent_mask(struct device *dev, u64 mask)
{
if (mask >= SZ_64M - 1)
return 0;
return -EIO;
}
EXPORT_SYMBOL(ixp4xx_pci_read);
EXPORT_SYMBOL(ixp4xx_pci_write);

2
arch/arm/mach-ixp4xx/include/mach/hardware.h
View File

@ -26,6 +26,8 @@
#define PCIBIOS_MAX_MEM 0x4BFFFFFF
#endif
#define ARCH_HAS_DMA_SET_COHERENT_MASK
#define pcibios_assign_all_busses() 1
/* Register locations and bits */

2
arch/arm/mach-kirkwood/include/mach/kirkwood.h
View File

@ -38,7 +38,7 @@
#define KIRKWOOD_PCIE1_IO_PHYS_BASE 0xf3000000
#define KIRKWOOD_PCIE1_IO_VIRT_BASE 0xfef00000
#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00000000
#define KIRKWOOD_PCIE1_IO_BUS_BASE 0x00100000
#define KIRKWOOD_PCIE1_IO_SIZE SZ_1M
#define KIRKWOOD_PCIE_IO_PHYS_BASE 0xf2000000

4
arch/arm/mach-kirkwood/pcie.c
View File

@ -117,7 +117,7 @@ static void __init pcie0_ioresources_init(struct pcie_port *pp)
* IORESOURCE_IO
*/
pp->res[0].name = "PCIe 0 I/O Space";
pp->res[0].start = KIRKWOOD_PCIE_IO_PHYS_BASE;
pp->res[0].start = KIRKWOOD_PCIE_IO_BUS_BASE;
pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1;
pp->res[0].flags = IORESOURCE_IO;
@ -139,7 +139,7 @@ static void __init pcie1_ioresources_init(struct pcie_port *pp)
* IORESOURCE_IO
*/
pp->res[0].name = "PCIe 1 I/O Space";
pp->res[0].start = KIRKWOOD_PCIE1_IO_PHYS_BASE;
pp->res[0].start = KIRKWOOD_PCIE1_IO_BUS_BASE;
pp->res[0].end = pp->res[0].start + KIRKWOOD_PCIE1_IO_SIZE - 1;
pp->res[0].flags = IORESOURCE_IO;

7
arch/arm/mach-mmp/include/mach/system.h
View File

@ -9,6 +9,8 @@
#ifndef __ASM_MACH_SYSTEM_H
#define __ASM_MACH_SYSTEM_H
#include <mach/cputype.h>
static inline void arch_idle(void)
{
cpu_do_idle();
@ -16,6 +18,9 @@ static inline void arch_idle(void)
static inline void arch_reset(char mode, const char *cmd)
{
cpu_reset(0);
if (cpu_is_pxa168())
cpu_reset(0xffff0000);
else
cpu_reset(0);
}
#endif /* __ASM_MACH_SYSTEM_H */

3
arch/arm/mach-pxa/cpufreq-pxa2xx.c
View File

@ -312,8 +312,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
freqs.cpu = policy->cpu;
if (freq_debug)
pr_debug(KERN_INFO "Changing CPU frequency to %d Mhz, "
"(SDRAM %d Mhz)\n",
pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
freqs.new / 1000, (pxa_freq_settings[idx].div2) ?
(new_freq_mem / 2000) : (new_freq_mem / 1000));

14
arch/arm/mach-pxa/include/mach/hardware.h
View File

@ -264,23 +264,35 @@
* <= 0x2 for pxa21x/pxa25x/pxa26x/pxa27x
* == 0x3 for pxa300/pxa310/pxa320
*/
#if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
#define __cpu_is_pxa2xx(id) \
({ \
unsigned int _id = (id) >> 13 & 0x7; \
_id <= 0x2; \
})
#else
#define __cpu_is_pxa2xx(id) (0)
#endif
#ifdef CONFIG_PXA3xx
#define __cpu_is_pxa3xx(id) \
({ \
unsigned int _id = (id) >> 13 & 0x7; \
_id == 0x3; \
})
#else
#define __cpu_is_pxa3xx(id) (0)
#endif
#if defined(CONFIG_CPU_PXA930) || defined(CONFIG_CPU_PXA935)
#define __cpu_is_pxa93x(id) \
({ \
unsigned int _id = (id) >> 4 & 0xfff; \
_id == 0x683 || _id == 0x693; \
})
#else
#define __cpu_is_pxa93x(id) (0)
#endif
#define cpu_is_pxa2xx() \
({ \
@ -309,7 +321,7 @@ extern unsigned long get_clock_tick_rate(void);
#define PCIBIOS_MIN_IO 0
#define PCIBIOS_MIN_MEM 0
#define pcibios_assign_all_busses() 1
#define ARCH_HAS_DMA_SET_COHERENT_MASK
#endif
#endif /* _ASM_ARCH_HARDWARE_H */

2
arch/arm/mach-pxa/include/mach/io.h
View File

@ -6,6 +6,8 @@
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H
#include <mach/hardware.h>
#define IO_SPACE_LIMIT 0xffffffff
/*

6
arch/arm/mach-pxa/palm27x.c
View File

@ -469,9 +469,13 @@ static struct i2c_board_info __initdata palm27x_pi2c_board_info[] = {
},
};
static struct i2c_pxa_platform_data palm27x_i2c_power_info = {
.use_pio = 1,
};
void __init palm27x_pmic_init(void)
{
i2c_register_board_info(1, ARRAY_AND_SIZE(palm27x_pi2c_board_info));
pxa27x_set_i2c_power_info(NULL);
pxa27x_set_i2c_power_info(&palm27x_i2c_power_info);
}
#endif

1
arch/arm/mach-pxa/vpac270.c
View File

@ -240,6 +240,7 @@ static void __init vpac270_onenand_init(void) {}
#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
static struct pxamci_platform_data vpac270_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.gpio_power = -1,
.gpio_card_detect = GPIO53_VPAC270_SD_DETECT_N,
.gpio_card_ro = GPIO52_VPAC270_SD_READONLY,
.detect_delay_ms = 200,

3
arch/arm/mach-s3c64xx/dev-spi.c
View File

@ -18,10 +18,11 @@
#include <mach/map.h>
#include <mach/gpio-bank-c.h>
#include <mach/spi-clocks.h>
#include <mach/irqs.h>
#include <plat/s3c64xx-spi.h>
#include <plat/gpio-cfg.h>
#include <plat/irqs.h>
#include <plat/devs.h>
static char *spi_src_clks[] = {
[S3C64XX_SPI_SRCCLK_PCLK] = "pclk",

104
arch/arm/mach-s3c64xx/mach-real6410.c
View File

@ -30,73 +30,73 @@
#include <plat/devs.h>
#include <plat/regs-serial.h>
#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
#define UCON (S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK)
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
[0] = {
.hwport = 0,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
.hwport = 0,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
[1] = {
.hwport = 1,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
.hwport = 1,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
[2] = {
.hwport = 2,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
.hwport = 2,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
[3] = {
.hwport = 3,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
.hwport = 3,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
};
/* DM9000AEP 10/100 ethernet controller */
static struct resource real6410_dm9k_resource[] = {
[0] = {
.start = S3C64XX_PA_XM0CSN1,
.end = S3C64XX_PA_XM0CSN1 + 1,
.flags = IORESOURCE_MEM
},
[1] = {
.start = S3C64XX_PA_XM0CSN1 + 4,
.end = S3C64XX_PA_XM0CSN1 + 5,
.flags = IORESOURCE_MEM
},
[2] = {
.start = S3C_EINT(7),
.end = S3C_EINT(7),
.flags = IORESOURCE_IRQ,
}
[0] = {
.start = S3C64XX_PA_XM0CSN1,
.end = S3C64XX_PA_XM0CSN1 + 1,
.flags = IORESOURCE_MEM
},
[1] = {
.start = S3C64XX_PA_XM0CSN1 + 4,
.end = S3C64XX_PA_XM0CSN1 + 5,
.flags = IORESOURCE_MEM
},
[2] = {
.start = S3C_EINT(7),
.end = S3C_EINT(7),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL
}
};
static struct dm9000_plat_data real6410_dm9k_pdata = {
.flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
.flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
};
static struct platform_device real6410_device_eth = {
.name = "dm9000",
.id = -1,
.num_resources = ARRAY_SIZE(real6410_dm9k_resource),
.resource = real6410_dm9k_resource,
.dev = {
.platform_data = &real6410_dm9k_pdata,
},
.name = "dm9000",
.id = -1,
.num_resources = ARRAY_SIZE(real6410_dm9k_resource),
.resource = real6410_dm9k_resource,
.dev = {
.platform_data = &real6410_dm9k_pdata,
},
};
static struct platform_device *real6410_devices[] __initdata = {
@ -129,12 +129,12 @@ static void __init real6410_machine_init(void)
/* set timing for nCS1 suitable for ethernet chip */
__raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
(6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
(4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
(1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
(13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
(4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
(0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
(6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
(4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
(1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
(13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
(4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
(0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
}

20
arch/arm/mach-s5pv210/clock.c
View File

@ -280,6 +280,24 @@ static struct clk init_clocks_disable[] = {
.parent = &clk_hclk_dsys.clk,
.enable = s5pv210_clk_ip0_ctrl,
.ctrlbit = (1<<29),
}, {
.name = "fimc",
.id = 0,
.parent = &clk_hclk_dsys.clk,
.enable = s5pv210_clk_ip0_ctrl,
.ctrlbit = (1 << 24),
}, {
.name = "fimc",
.id = 1,
.parent = &clk_hclk_dsys.clk,
.enable = s5pv210_clk_ip0_ctrl,
.ctrlbit = (1 << 25),
}, {
.name = "fimc",
.id = 2,
.parent = &clk_hclk_dsys.clk,
.enable = s5pv210_clk_ip0_ctrl,
.ctrlbit = (1 << 26),
}, {
.name = "otg",
.id = -1,
@ -357,7 +375,7 @@ static struct clk init_clocks_disable[] = {
.id = 1,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<8),
.ctrlbit = (1 << 10),
}, {
.name = "i2c",
.id = 2,

2
arch/arm/mach-s5pv210/cpu.c
View File

@ -47,7 +47,7 @@ static struct map_desc s5pv210_iodesc[] __initdata = {
{
.virtual = (unsigned long)S5P_VA_SYSTIMER,
.pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER),
.length = SZ_1M,
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = (unsigned long)VA_VIC2,

3
arch/arm/mach-u300/include/mach/gpio.h
View File

@ -273,6 +273,9 @@ extern void gpio_pullup(unsigned gpio, int value);
extern int gpio_get_value(unsigned gpio);
extern void gpio_set_value(unsigned gpio, int value);
#define gpio_get_value_cansleep gpio_get_value
#define gpio_set_value_cansleep gpio_set_value
/* wrappers to sleep-enable the previous two functions */
static inline unsigned gpio_to_irq(unsigned gpio)
{

8
arch/arm/mach-vexpress/ct-ca9x4.c
View File

@ -227,7 +227,13 @@ static void ct_ca9x4_init(void)
int i;
#ifdef CONFIG_CACHE_L2X0
l2x0_init(MMIO_P2V(CT_CA9X4_L2CC), 0x00000000, 0xfe0fffff);
void __iomem *l2x0_base = MMIO_P2V(CT_CA9X4_L2CC);
/* set RAM latencies to 1 cycle for this core tile. */
writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL);
writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL);
l2x0_init(l2x0_base, 0x00400000, 0xfe0fffff);
#endif
clkdev_add_table(lookups, ARRAY_SIZE(lookups));

19
arch/arm/mm/alignment.c
View File

@ -885,8 +885,23 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
if (ai_usermode & UM_SIGNAL)
force_sig(SIGBUS, current);
else
set_cr(cr_no_alignment);
else {
/*
* We're about to disable the alignment trap and return to
* user space. But if an interrupt occurs before actually
* reaching user space, then the IRQ vector entry code will
* notice that we were still in kernel space and therefore
* the alignment trap won't be re-enabled in that case as it
* is presumed to be always on from kernel space.
* Let's prevent that race by disabling interrupts here (they
* are disabled on the way back to user space anyway in
* entry-common.S) and disable the alignment trap only if
* there is no work pending for this thread.
*/
raw_local_irq_disable();
if (!(current_thread_info()->flags & _TIF_WORK_MASK))
set_cr(cr_no_alignment);
}
return 0;
}

31
arch/arm/mm/mmu.c
View File

@ -15,6 +15,7 @@
#include <linux/nodemask.h>
#include <linux/memblock.h>
#include <linux/sort.h>
#include <linux/fs.h>
#include <asm/cputype.h>
#include <asm/sections.h>
@ -246,6 +247,9 @@ static struct mem_type mem_types[] = {
.domain = DOMAIN_USER,
},
[MT_MEMORY] = {
.prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
L_PTE_USER | L_PTE_EXEC,
.prot_l1 = PMD_TYPE_TABLE,
.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
.domain = DOMAIN_KERNEL,
},
@ -254,6 +258,9 @@ static struct mem_type mem_types[] = {
.domain = DOMAIN_KERNEL,
},
[MT_MEMORY_NONCACHED] = {
.prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
L_PTE_USER | L_PTE_EXEC | L_PTE_MT_BUFFERABLE,
.prot_l1 = PMD_TYPE_TABLE,
.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE,
.domain = DOMAIN_KERNEL,
},
@ -411,9 +418,12 @@ static void __init build_mem_type_table(void)
* Enable CPU-specific coherency if supported.
* (Only available on XSC3 at the moment.)
*/
if (arch_is_coherent() && cpu_is_xsc3())
if (arch_is_coherent() && cpu_is_xsc3()) {
mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
}
/*
* ARMv6 and above have extended page tables.
*/
@ -438,7 +448,9 @@ static void __init build_mem_type_table(void)
mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S;
mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED;
mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S;
mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED;
mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S;
mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED;
#endif
}
@ -475,6 +487,8 @@ static void __init build_mem_type_table(void)
mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask;
mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask;
mem_types[MT_MEMORY].prot_sect |= ecc_mask | cp->pmd;
mem_types[MT_MEMORY].prot_pte |= kern_pgprot;
mem_types[MT_MEMORY_NONCACHED].prot_sect |= ecc_mask;
mem_types[MT_ROM].prot_sect |= cp->pmd;
switch (cp->pmd) {
@ -498,6 +512,19 @@ static void __init build_mem_type_table(void)
}
}
#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot)
{
if (!pfn_valid(pfn))
return pgprot_noncached(vma_prot);
else if (file->f_flags & O_SYNC)
return pgprot_writecombine(vma_prot);
return vma_prot;
}
EXPORT_SYMBOL(phys_mem_access_prot);
#endif
#define vectors_base() (vectors_high() ? 0xffff0000 : 0)
static void __init *early_alloc(unsigned long sz)

62
arch/arm/mm/proc-v7.S
View File

@ -186,13 +186,14 @@ cpu_v7_name:
* It is assumed that:
* - cache type register is implemented
*/
__v7_setup:
__v7_ca9mp_setup:
#ifdef CONFIG_SMP
mrc p15, 0, r0, c1, c0, 1
tst r0, #(1 << 6) @ SMP/nAMP mode enabled?
orreq r0, r0, #(1 << 6) | (1 << 0) @ Enable SMP/nAMP mode and
mcreq p15, 0, r0, c1, c0, 1 @ TLB ops broadcasting
#endif
__v7_setup:
adr r12, __v7_setup_stack @ the local stack
stmia r12, {r0-r5, r7, r9, r11, lr}
bl v7_flush_dcache_all
@ -201,11 +202,16 @@ __v7_setup:
mrc p15, 0, r0, c0, c0, 0 @ read main ID register
and r10, r0, #0xff000000 @ ARM?
teq r10, #0x41000000
bne 2f
bne 3f
and r5, r0, #0x00f00000 @ variant
and r6, r0, #0x0000000f @ revision
orr r0, r6, r5, lsr #20-4 @ combine variant and revision
orr r6, r6, r5, lsr #20-4 @ combine variant and revision
ubfx r0, r0, #4, #12 @ primary part number
/* Cortex-A8 Errata */
ldr r10, =0x00000c08 @ Cortex-A8 primary part number
teq r0, r10
bne 2f
#ifdef CONFIG_ARM_ERRATA_430973
teq r5, #0x00100000 @ only present in r1p*
mrceq p15, 0, r10, c1, c0, 1 @ read aux control register
@ -213,21 +219,42 @@ __v7_setup:
mcreq p15, 0, r10, c1, c0, 1 @ write aux control register
#endif
#ifdef CONFIG_ARM_ERRATA_458693
teq r0, #0x20 @ only present in r2p0
teq r6, #0x20 @ only present in r2p0
mrceq p15, 0, r10, c1, c0, 1 @ read aux control register
orreq r10, r10, #(1 << 5) @ set L1NEON to 1
orreq r10, r10, #(1 << 9) @ set PLDNOP to 1
mcreq p15, 0, r10, c1, c0, 1 @ write aux control register
#endif
#ifdef CONFIG_ARM_ERRATA_460075
teq r0, #0x20 @ only present in r2p0
teq r6, #0x20 @ only present in r2p0
mrceq p15, 1, r10, c9, c0, 2 @ read L2 cache aux ctrl register
tsteq r10, #1 << 22
orreq r10, r10, #(1 << 22) @ set the Write Allocate disable bit
mcreq p15, 1, r10, c9, c0, 2 @ write the L2 cache aux ctrl register
#endif
b 3f
2: mov r10, #0
/* Cortex-A9 Errata */
2: ldr r10, =0x00000c09 @ Cortex-A9 primary part number
teq r0, r10
bne 3f
#ifdef CONFIG_ARM_ERRATA_742230
cmp r6, #0x22 @ only present up to r2p2
mrcle p15, 0, r10, c15, c0, 1 @ read diagnostic register
orrle r10, r10, #1 << 4 @ set bit #4
mcrle p15, 0, r10, c15, c0, 1 @ write diagnostic register
#endif
#ifdef CONFIG_ARM_ERRATA_742231
teq r6, #0x20 @ present in r2p0
teqne r6, #0x21 @ present in r2p1
teqne r6, #0x22 @ present in r2p2
mrceq p15, 0, r10, c15, c0, 1 @ read diagnostic register
orreq r10, r10, #1 << 12 @ set bit #12
orreq r10, r10, #1 << 22 @ set bit #22
mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register
#endif
3: mov r10, #0
#ifdef HARVARD_CACHE
mcr p15, 0, r10, c7, c5, 0 @ I+BTB cache invalidate
#endif
@ -323,6 +350,29 @@ cpu_elf_name:
.section ".proc.info.init", #alloc, #execinstr
.type __v7_ca9mp_proc_info, #object
__v7_ca9mp_proc_info:
.long 0x410fc090 @ Required ID value
.long 0xff0ffff0 @ Mask for ID
.long PMD_TYPE_SECT | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ | \
PMD_FLAGS
.long PMD_TYPE_SECT | \
PMD_SECT_XN | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __v7_ca9mp_setup
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
.long cpu_v7_name
.long v7_processor_functions
.long v7wbi_tlb_fns
.long v6_user_fns
.long v7_cache_fns
.size __v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info
/*
* Match any ARMv7 processor core.
*/

7
arch/arm/oprofile/common.c
View File

@ -102,6 +102,7 @@ static int op_create_counter(int cpu, int event)
if (IS_ERR(pevent)) {
ret = PTR_ERR(pevent);
} else if (pevent->state != PERF_EVENT_STATE_ACTIVE) {
perf_event_release_kernel(pevent);
pr_warning("oprofile: failed to enable event %d "
"on CPU %d\n", event, cpu);
ret = -EBUSY;
@ -365,6 +366,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
ret = init_driverfs();
if (ret) {
kfree(counter_config);
counter_config = NULL;
return ret;
}
@ -402,7 +404,6 @@ void oprofile_arch_exit(void)
struct perf_event *event;
if (*perf_events) {
exit_driverfs();
for_each_possible_cpu(cpu) {
for (id = 0; id < perf_num_counters; ++id) {
event = perf_events[cpu][id];
@ -413,8 +414,10 @@ void oprofile_arch_exit(void)
}
}
if (counter_config)
if (counter_config) {
kfree(counter_config);
exit_driverfs();
}
}
#else
int __init oprofile_arch_init(struct oprofile_operations *ops)

33
arch/arm/plat-nomadik/timer.c
View File

@ -1,5 +1,5 @@
/*
* linux/arch/arm/mach-nomadik/timer.c
* linux/arch/arm/plat-nomadik/timer.c
*
* Copyright (C) 2008 STMicroelectronics
* Copyright (C) 2010 Alessandro Rubini
@ -75,7 +75,7 @@ static void nmdk_clkevt_mode(enum clock_event_mode mode,
cr = readl(mtu_base + MTU_CR(1));
writel(0, mtu_base + MTU_LR(1));
writel(cr | MTU_CRn_ENA, mtu_base + MTU_CR(1));
writel(0x2, mtu_base + MTU_IMSC);
writel(1 << 1, mtu_base + MTU_IMSC);
break;
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
@ -131,25 +131,23 @@ void __init nmdk_timer_init(void)
{
unsigned long rate;
struct clk *clk0;
struct clk *clk1;
u32 cr;
u32 cr = MTU_CRn_32BITS;
clk0 = clk_get_sys("mtu0", NULL);
BUG_ON(IS_ERR(clk0));
clk1 = clk_get_sys("mtu1", NULL);
BUG_ON(IS_ERR(clk1));
clk_enable(clk0);
clk_enable(clk1);
/*
* Tick rate is 2.4MHz for Nomadik and 110MHz for ux500:
* use a divide-by-16 counter if it's more than 16MHz
* Tick rate is 2.4MHz for Nomadik and 2.4Mhz, 100MHz or 133 MHz
* for ux500.
* Use a divide-by-16 counter if the tick rate is more than 32MHz.
* At 32 MHz, the timer (with 32 bit counter) can be programmed
* to wake-up at a max 127s a head in time. Dividing a 2.4 MHz timer
* with 16 gives too low timer resolution.
*/
cr = MTU_CRn_32BITS;;
rate = clk_get_rate(clk0);
if (rate > 16 << 20) {
if (rate > 32000000) {
rate /= 16;
cr |= MTU_CRn_PRESCALE_16;
} else {
@ -170,15 +168,8 @@ void __init nmdk_timer_init(void)
pr_err("timer: failed to initialize clock source %s\n",
nmdk_clksrc.name);
/* Timer 1 is used for events, fix according to rate */
cr = MTU_CRn_32BITS;
rate = clk_get_rate(clk1);
if (rate > 16 << 20) {
rate /= 16;
cr |= MTU_CRn_PRESCALE_16;
} else {
cr |= MTU_CRn_PRESCALE_1;
}
/* Timer 1 is used for events */
clockevents_calc_mult_shift(&nmdk_clkevt, rate, MTU_MIN_RANGE);
writel(cr | MTU_CRn_ONESHOT, mtu_base + MTU_CR(1)); /* off, currently */

2
arch/arm/plat-omap/Kconfig
View File

@ -33,7 +33,7 @@ config OMAP_DEBUG_DEVICES
config OMAP_DEBUG_LEDS
bool
depends on OMAP_DEBUG_DEVICES
default y if LEDS
default y if LEDS_CLASS
config OMAP_RESET_CLOCKS
bool "Reset unused clocks during boot"

2
arch/arm/plat-omap/mcbsp.c
View File

@ -156,7 +156,7 @@ static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id)
/* Writing zero to RSYNC_ERR clears the IRQ */
MCBSP_WRITE(mcbsp_rx, SPCR1, MCBSP_READ_CACHE(mcbsp_rx, SPCR1));
} else {
complete(&mcbsp_rx->tx_irq_completion);
complete(&mcbsp_rx->rx_irq_completion);
}
return IRQ_HANDLED;

25
arch/arm/plat-omap/sram.c
View File

@ -220,20 +220,7 @@ void __init omap_map_sram(void)
if (omap_sram_size == 0)
return;
if (cpu_is_omap24xx()) {
omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA;
base = OMAP2_SRAM_PA;
base = ROUND_DOWN(base, PAGE_SIZE);
omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
}
if (cpu_is_omap34xx()) {
omap_sram_io_desc[0].virtual = OMAP3_SRAM_VA;
base = OMAP3_SRAM_PA;
base = ROUND_DOWN(base, PAGE_SIZE);
omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
/*
* SRAM must be marked as non-cached on OMAP3 since the
* CORE DPLL M2 divider change code (in SRAM) runs with the
@ -244,13 +231,11 @@ void __init omap_map_sram(void)
omap_sram_io_desc[0].type = MT_MEMORY_NONCACHED;
}
if (cpu_is_omap44xx()) {
omap_sram_io_desc[0].virtual = OMAP4_SRAM_VA;
base = OMAP4_SRAM_PA;
base = ROUND_DOWN(base, PAGE_SIZE);
omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
}
omap_sram_io_desc[0].length = 1024 * 1024; /* Use section desc */
omap_sram_io_desc[0].virtual = omap_sram_base;
base = omap_sram_start;
base = ROUND_DOWN(base, PAGE_SIZE);
omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
omap_sram_io_desc[0].length = ROUND_DOWN(omap_sram_size, PAGE_SIZE);
iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n",

9
arch/arm/plat-s5p/dev-fimc0.c
View File

@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
@ -18,7 +19,7 @@
static struct resource s5p_fimc0_resource[] = {
[0] = {
.start = S5P_PA_FIMC0,
.end = S5P_PA_FIMC0 + SZ_1M - 1,
.end = S5P_PA_FIMC0 + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
@ -28,9 +29,15 @@ static struct resource s5p_fimc0_resource[] = {
},
};
static u64 s5p_fimc0_dma_mask = DMA_BIT_MASK(32);
struct platform_device s5p_device_fimc0 = {
.name = "s5p-fimc",
.id = 0,
.num_resources = ARRAY_SIZE(s5p_fimc0_resource),
.resource = s5p_fimc0_resource,
.dev = {
.dma_mask = &s5p_fimc0_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};

9
arch/arm/plat-s5p/dev-fimc1.c
View File

@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
@ -18,7 +19,7 @@
static struct resource s5p_fimc1_resource[] = {
[0] = {
.start = S5P_PA_FIMC1,
.end = S5P_PA_FIMC1 + SZ_1M - 1,
.end = S5P_PA_FIMC1 + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
@ -28,9 +29,15 @@ static struct resource s5p_fimc1_resource[] = {
},
};
static u64 s5p_fimc1_dma_mask = DMA_BIT_MASK(32);
struct platform_device s5p_device_fimc1 = {
.name = "s5p-fimc",
.id = 1,
.num_resources = ARRAY_SIZE(s5p_fimc1_resource),
.resource = s5p_fimc1_resource,
.dev = {
.dma_mask = &s5p_fimc1_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};

9
arch/arm/plat-s5p/dev-fimc2.c
View File

@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
@ -18,7 +19,7 @@
static struct resource s5p_fimc2_resource[] = {
[0] = {
.start = S5P_PA_FIMC2,
.end = S5P_PA_FIMC2 + SZ_1M - 1,
.end = S5P_PA_FIMC2 + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
@ -28,9 +29,15 @@ static struct resource s5p_fimc2_resource[] = {
},
};
static u64 s5p_fimc2_dma_mask = DMA_BIT_MASK(32);
struct platform_device s5p_device_fimc2 = {
.name = "s5p-fimc",
.id = 2,
.num_resources = ARRAY_SIZE(s5p_fimc2_resource),
.resource = s5p_fimc2_resource,
.dev = {
.dma_mask = &s5p_fimc2_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};

7
arch/arm/plat-samsung/gpio-config.c
View File

@ -273,13 +273,13 @@ s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
if (!chip)
return -EINVAL;
off = chip->chip.base - pin;
off = pin - chip->chip.base;
shift = off * 2;
reg = chip->base + 0x0C;
drvstr = __raw_readl(reg);
drvstr = 0xffff & (0x3 << shift);
drvstr = drvstr >> shift;
drvstr &= 0x3;
return (__force s5p_gpio_drvstr_t)drvstr;
}
@ -296,11 +296,12 @@ int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
if (!chip)
return -EINVAL;
off = chip->chip.base - pin;
off = pin - chip->chip.base;
shift = off * 2;
reg = chip->base + 0x0C;
tmp = __raw_readl(reg);
tmp &= ~(0x3 << shift);
tmp |= drvstr << shift;
__raw_writel(tmp, reg);

10
arch/arm/plat-samsung/include/plat/gpio-cfg.h
View File

@ -143,12 +143,12 @@ extern s3c_gpio_pull_t s3c_gpio_getpull(unsigned int pin);
/* Define values for the drvstr available for each gpio pin.
*
* These values control the value of the output signal driver strength,
* configurable on most pins on the S5C series.
* configurable on most pins on the S5P series.
*/
#define S5P_GPIO_DRVSTR_LV1 ((__force s5p_gpio_drvstr_t)0x00)
#define S5P_GPIO_DRVSTR_LV2 ((__force s5p_gpio_drvstr_t)0x01)
#define S5P_GPIO_DRVSTR_LV3 ((__force s5p_gpio_drvstr_t)0x10)
#define S5P_GPIO_DRVSTR_LV4 ((__force s5p_gpio_drvstr_t)0x11)
#define S5P_GPIO_DRVSTR_LV1 ((__force s5p_gpio_drvstr_t)0x0)
#define S5P_GPIO_DRVSTR_LV2 ((__force s5p_gpio_drvstr_t)0x2)
#define S5P_GPIO_DRVSTR_LV3 ((__force s5p_gpio_drvstr_t)0x1)
#define S5P_GPIO_DRVSTR_LV4 ((__force s5p_gpio_drvstr_t)0x3)
/**
* s5c_gpio_get_drvstr() - get the driver streght value of a gpio pin

3
arch/avr32/kernel/module.c
View File

@ -314,10 +314,9 @@ int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
vfree(module->arch.syminfo);
module->arch.syminfo = NULL;
return module_bug_finalize(hdr, sechdrs, module);
return 0;
}
void module_arch_cleanup(struct module *module)
{
module_bug_cleanup(module);
}

51
arch/frv/kernel/signal.c
View File

@ -121,6 +121,9 @@ static int restore_sigcontext(struct sigcontext __user *sc, int *_gr8)
struct user_context *user = current->thread.user;
unsigned long tbr, psr;
/* Always make any pending restarted system calls return -EINTR */
current_thread_info()->restart_block.fn = do_no_restart_syscall;
tbr = user->i.tbr;
psr = user->i.psr;
if (copy_from_user(user, &sc->sc_context, sizeof(sc->sc_context)))
@ -250,6 +253,8 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
struct sigframe __user *frame;
int rsig;
set_fs(USER_DS);
frame = get_sigframe(ka, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
@ -293,22 +298,23 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
(unsigned long) (frame->retcode + 2));
}
/* set up registers for signal handler */
__frame->sp = (unsigned long) frame;
__frame->lr = (unsigned long) &frame->retcode;
__frame->gr8 = sig;
/* Set up registers for the signal handler */
if (current->personality & FDPIC_FUNCPTRS) {
struct fdpic_func_descriptor __user *funcptr =
(struct fdpic_func_descriptor __user *) ka->sa.sa_handler;
__get_user(__frame->pc, &funcptr->text);
__get_user(__frame->gr15, &funcptr->GOT);
struct fdpic_func_descriptor desc;
if (copy_from_user(&desc, funcptr, sizeof(desc)))
goto give_sigsegv;
__frame->pc = desc.text;
__frame->gr15 = desc.GOT;
} else {
__frame->pc = (unsigned long) ka->sa.sa_handler;
__frame->gr15 = 0;
}
set_fs(USER_DS);
__frame->sp = (unsigned long) frame;
__frame->lr = (unsigned long) &frame->retcode;
__frame->gr8 = sig;
/* the tracer may want to single-step inside the handler */
if (test_thread_flag(TIF_SINGLESTEP))
@ -323,7 +329,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set)
return 0;
give_sigsegv:
force_sig(SIGSEGV, current);
force_sigsegv(sig, current);
return -EFAULT;
} /* end setup_frame() */
@ -338,6 +344,8 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
struct rt_sigframe __user *frame;
int rsig;
set_fs(USER_DS);
frame = get_sigframe(ka, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
@ -392,22 +400,23 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
}
/* Set up registers for signal handler */
__frame->sp = (unsigned long) frame;
__frame->lr = (unsigned long) &frame->retcode;
__frame->gr8 = sig;
__frame->gr9 = (unsigned long) &frame->info;
if (current->personality & FDPIC_FUNCPTRS) {
struct fdpic_func_descriptor __user *funcptr =
(struct fdpic_func_descriptor __user *) ka->sa.sa_handler;
__get_user(__frame->pc, &funcptr->text);
__get_user(__frame->gr15, &funcptr->GOT);
struct fdpic_func_descriptor desc;
if (copy_from_user(&desc, funcptr, sizeof(desc)))
goto give_sigsegv;
__frame->pc = desc.text;
__frame->gr15 = desc.GOT;
} else {
__frame->pc = (unsigned long) ka->sa.sa_handler;
__frame->gr15 = 0;
}
set_fs(USER_DS);
__frame->sp = (unsigned long) frame;
__frame->lr = (unsigned long) &frame->retcode;
__frame->gr8 = sig;
__frame->gr9 = (unsigned long) &frame->info;
/* the tracer may want to single-step inside the handler */
if (test_thread_flag(TIF_SINGLESTEP))
@ -422,7 +431,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
return 0;
give_sigsegv:
force_sig(SIGSEGV, current);
force_sigsegv(sig, current);
return -EFAULT;
} /* end setup_rt_frame() */
@ -437,7 +446,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
int ret;
/* Are we from a system call? */
if (in_syscall(__frame)) {
if (__frame->syscallno != -1) {
/* If so, check system call restarting.. */
switch (__frame->gr8) {
case -ERESTART_RESTARTBLOCK:
@ -456,6 +465,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
__frame->gr8 = __frame->orig_gr8;
__frame->pc -= 4;
}
__frame->syscallno = -1;
}
/* Set up the stack frame */
@ -538,10 +548,11 @@ no_signal:
break;
case -ERESTART_RESTARTBLOCK:
__frame->gr8 = __NR_restart_syscall;
__frame->gr7 = __NR_restart_syscall;
__frame->pc -= 4;
break;
}
__frame->syscallno = -1;
}
/* if there's no signal to deliver, we just put the saved sigmask

3
arch/h8300/kernel/module.c
View File

@ -112,10 +112,9 @@ int module_finalize(const Elf_Ehdr *hdr,
const Elf_Shdr *sechdrs,
struct module *me)
{
return module_bug_finalize(hdr, sechdrs, me);
return 0;
}
void module_arch_cleanup(struct module *mod)
{
module_bug_cleanup(mod);
}

2
arch/ia64/include/asm/compat.h
View File

@ -199,7 +199,7 @@ ptr_to_compat(void __user *uptr)
}
static __inline__ void __user *
compat_alloc_user_space (long len)
arch_compat_alloc_user_space (long len)
{
struct pt_regs *regs = task_pt_regs(current);
return (void __user *) (((regs->r12 & 0xffffffff) & -16) - len);

30
arch/ia64/kernel/fsys.S
View File

@ -420,22 +420,31 @@ EX(.fail_efault, ld8 r14=[r33]) // r14 <- *set
;;
RSM_PSR_I(p0, r18, r19) // mask interrupt delivery
mov ar.ccv=0
andcm r14=r14,r17 // filter out SIGKILL & SIGSTOP
mov r8=EINVAL // default to EINVAL
#ifdef CONFIG_SMP
mov r17=1
// __ticket_spin_trylock(r31)
ld4 r17=[r31]
;;
cmpxchg4.acq r18=[r31],r17,ar.ccv // try to acquire the lock
mov r8=EINVAL // default to EINVAL
mov.m ar.ccv=r17
extr.u r9=r17,17,15
adds r19=1,r17
extr.u r18=r17,0,15
;;
cmp.eq p6,p7=r9,r18
;;
(p6) cmpxchg4.acq r9=[r31],r19,ar.ccv
(p6) dep.z r20=r19,1,15 // next serving ticket for unlock
(p7) br.cond.spnt.many .lock_contention
;;
cmp4.eq p0,p7=r9,r17
adds r31=2,r31
(p7) br.cond.spnt.many .lock_contention
ld8 r3=[r2] // re-read current->blocked now that we hold the lock
cmp4.ne p6,p0=r18,r0
(p6) br.cond.spnt.many .lock_contention
;;
#else
ld8 r3=[r2] // re-read current->blocked now that we hold the lock
mov r8=EINVAL // default to EINVAL
#endif
add r18=IA64_TASK_PENDING_OFFSET+IA64_SIGPENDING_SIGNAL_OFFSET,r16
add r19=IA64_TASK_SIGNAL_OFFSET,r16
@ -490,7 +499,9 @@ EX(.fail_efault, ld8 r14=[r33]) // r14 <- *set
(p6) br.cond.spnt.few 1b // yes -> retry
#ifdef CONFIG_SMP
st4.rel [r31]=r0 // release the lock
// __ticket_spin_unlock(r31)
st2.rel [r31]=r20
mov r20=0 // i must not leak kernel bits...
#endif
SSM_PSR_I(p0, p9, r31)
;;
@ -512,7 +523,8 @@ EX(.fail_efault, (p15) st8 [r34]=r3)
.sig_pending:
#ifdef CONFIG_SMP
st4.rel [r31]=r0 // release the lock
// __ticket_spin_unlock(r31)
st2.rel [r31]=r20 // release the lock
#endif
SSM_PSR_I(p0, p9, r17)
;;

1
arch/m32r/include/asm/signal.h
View File

@ -157,7 +157,6 @@ typedef struct sigaltstack {
#undef __HAVE_ARCH_SIG_BITOPS
struct pt_regs;
extern int do_signal(struct pt_regs *regs, sigset_t *oldset);
#define ptrace_signal_deliver(regs, cookie) do { } while (0)

1
arch/m32r/include/asm/unistd.h
View File

@ -351,6 +351,7 @@
#define __ARCH_WANT_SYS_OLD_GETRLIMIT /*will be unused*/
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_RT_SIGACTION
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
#define __IGNORE_lchown
#define __IGNORE_setuid

5
arch/m32r/kernel/entry.S
View File

@ -235,10 +235,9 @@ work_resched:
work_notifysig: ; deal with pending signals and
; notify-resume requests
mv r0, sp ; arg1 : struct pt_regs *regs
ldi r1, #0 ; arg2 : sigset_t *oldset
mv r2, r9 ; arg3 : __u32 thread_info_flags
mv r1, r9 ; arg2 : __u32 thread_info_flags
bl do_notify_resume
bra restore_all
bra resume_userspace
; perform syscall exit tracing
ALIGN

7
arch/m32r/kernel/ptrace.c
View File

@ -592,16 +592,17 @@ void user_enable_single_step(struct task_struct *child)
if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
!= sizeof(insn))
break;
return -EIO;
compute_next_pc(insn, pc, &next_pc, child);
if (next_pc & 0x80000000)
break;
return -EIO;
if (embed_debug_trap(child, next_pc))
break;
return -EIO;
invalidate_cache();
return 0;
}
void user_disable_single_step(struct task_struct *child)

105
arch/m32r/kernel/signal.c
View File

@ -28,37 +28,6 @@
#define DEBUG_SIG 0
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
int do_signal(struct pt_regs *, sigset_t *);
asmlinkage int
sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize,
unsigned long r2, unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, struct pt_regs *regs)
{
sigset_t newset;
/* XXX: Don't preclude handling different sized sigset_t's. */
if (sigsetsize != sizeof(sigset_t))
return -EINVAL;
if (copy_from_user(&newset, unewset, sizeof(newset)))
return -EFAULT;
sigdelsetmask(&newset, sigmask(SIGKILL)|sigmask(SIGSTOP));
spin_lock_irq(&current->sighand->siglock);
current->saved_sigmask = current->blocked;
current->blocked = newset;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
current->state = TASK_INTERRUPTIBLE;
schedule();
set_thread_flag(TIF_RESTORE_SIGMASK);
return -ERESTARTNOHAND;
}
asmlinkage int
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
unsigned long r2, unsigned long r3, unsigned long r4,
@ -218,7 +187,7 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
return (void __user *)((sp - frame_size) & -8ul);
}
static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs *regs)
{
struct rt_sigframe __user *frame;
@ -275,22 +244,34 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
current->comm, current->pid, frame, regs->pc);
#endif
return;
return 0;
give_sigsegv:
force_sigsegv(sig, current);
return -EFAULT;
}
static int prev_insn(struct pt_regs *regs)
{
u16 inst;
if (get_user(&inst, (u16 __user *)(regs->bpc - 2)))
return -EFAULT;
if ((inst & 0xfff0) == 0x10f0) /* trap ? */
regs->bpc -= 2;
else
regs->bpc -= 4;
regs->syscall_nr = -1;
return 0;
}
/*
* OK, we're invoking a handler
*/
static void
static int
handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *oldset, struct pt_regs *regs)
{
unsigned short inst;
/* Are we from a system call? */
if (regs->syscall_nr >= 0) {
/* If so, check system call restarting.. */
@ -308,16 +289,14 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
/* fallthrough */
case -ERESTARTNOINTR:
regs->r0 = regs->orig_r0;
inst = *(unsigned short *)(regs->bpc - 2);
if ((inst & 0xfff0) == 0x10f0) /* trap ? */
regs->bpc -= 2;
else
regs->bpc -= 4;
if (prev_insn(regs) < 0)
return -EFAULT;
}
}
/* Set up the stack frame */
setup_rt_frame(sig, ka, info, oldset, regs);
if (setup_rt_frame(sig, ka, info, oldset, regs))
return -EFAULT;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@ -325,6 +304,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
sigaddset(&current->blocked,sig);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
return 0;
}
/*
@ -332,12 +312,12 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
* want to handle. Thus you cannot kill init even with a SIGKILL even by
* mistake.
*/
int do_signal(struct pt_regs *regs, sigset_t *oldset)
static void do_signal(struct pt_regs *regs)
{
siginfo_t info;
int signr;
struct k_sigaction ka;
unsigned short inst;
sigset_t *oldset;
/*
* We want the common case to go fast, which
@ -346,12 +326,14 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
* if so.
*/
if (!user_mode(regs))
return 1;
return;
if (try_to_freeze())
goto no_signal;
if (!oldset)
if (test_thread_flag(TIF_RESTORE_SIGMASK))
oldset = &current->saved_sigmask;
else
oldset = &current->blocked;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
@ -363,8 +345,10 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
*/
/* Whee! Actually deliver the signal. */
handle_signal(signr, &ka, &info, oldset, regs);
return 1;
if (handle_signal(signr, &ka, &info, oldset, regs) == 0)
clear_thread_flag(TIF_RESTORE_SIGMASK);
return;
}
no_signal:
@ -375,31 +359,24 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
regs->r0 == -ERESTARTSYS ||
regs->r0 == -ERESTARTNOINTR) {
regs->r0 = regs->orig_r0;
inst = *(unsigned short *)(regs->bpc - 2);
if ((inst & 0xfff0) == 0x10f0) /* trap ? */
regs->bpc -= 2;
else
regs->bpc -= 4;
}
if (regs->r0 == -ERESTART_RESTARTBLOCK){
prev_insn(regs);
} else if (regs->r0 == -ERESTART_RESTARTBLOCK){
regs->r0 = regs->orig_r0;
regs->r7 = __NR_restart_syscall;
inst = *(unsigned short *)(regs->bpc - 2);
if ((inst & 0xfff0) == 0x10f0) /* trap ? */
regs->bpc -= 2;
else
regs->bpc -= 4;
prev_insn(regs);
}
}
return 0;
if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
clear_thread_flag(TIF_RESTORE_SIGMASK);
sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
}
}
/*
* notification of userspace execution resumption
* - triggered by current->work.notify_resume
*/
void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
__u32 thread_info_flags)
void do_notify_resume(struct pt_regs *regs, __u32 thread_info_flags)
{
/* Pending single-step? */
if (thread_info_flags & _TIF_SINGLESTEP)
@ -407,7 +384,7 @@ void do_notify_resume(struct pt_regs *regs, sigset_t *oldset,
/* deal with pending signal delivery */
if (thread_info_flags & _TIF_SIGPENDING)
do_signal(regs,oldset);
do_signal(regs);
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);

5
arch/m68k/include/asm/unistd.h
View File

@ -340,10 +340,13 @@
#define __NR_set_thread_area 334
#define __NR_atomic_cmpxchg_32 335
#define __NR_atomic_barrier 336
#define __NR_fanotify_init 337
#define __NR_fanotify_mark 338
#define __NR_prlimit64 339
#ifdef __KERNEL__
#define NR_syscalls 337
#define NR_syscalls 340
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR

3
arch/m68k/kernel/entry.S
View File

@ -765,4 +765,7 @@ sys_call_table:
.long sys_set_thread_area
.long sys_atomic_cmpxchg_32 /* 335 */
.long sys_atomic_barrier
.long sys_fanotify_init
.long sys_fanotify_mark
.long sys_prlimit64

6
arch/m68k/mac/macboing.c
View File

@ -162,7 +162,7 @@ static void mac_init_asc( void )
void mac_mksound( unsigned int freq, unsigned int length )
{
__u32 cfreq = ( freq << 5 ) / 468;
__u32 flags;
unsigned long flags;
int i;
if ( mac_special_bell == NULL )
@ -224,7 +224,7 @@ static void mac_nosound( unsigned long ignored )
*/
static void mac_quadra_start_bell( unsigned int freq, unsigned int length, unsigned int volume )
{
__u32 flags;
unsigned long flags;
/* if the bell is already ringing, ring longer */
if ( mac_bell_duration > 0 )
@ -271,7 +271,7 @@ static void mac_quadra_start_bell( unsigned int freq, unsigned int length, unsig
static void mac_quadra_ring_bell( unsigned long ignored )
{
int i, count = mac_asc_samplespersec / HZ;
__u32 flags;
unsigned long flags;
/*
* we neither want a sound buffer overflow nor underflow, so we need to match

3
arch/m68knommu/kernel/syscalltable.S
View File

@ -355,6 +355,9 @@ ENTRY(sys_call_table)
.long sys_set_thread_area
.long sys_atomic_cmpxchg_32 /* 335 */
.long sys_atomic_barrier
.long sys_fanotify_init
.long sys_fanotify_mark
.long sys_prlimit64
.rept NR_syscalls-(.-sys_call_table)/4
.long sys_ni_syscall

21
arch/mips/Kconfig
View File

@ -13,6 +13,7 @@ config MIPS
select HAVE_KPROBES
select HAVE_KRETPROBES
select RTC_LIB if !MACH_LOONGSON
select GENERIC_ATOMIC64 if !64BIT
mainmenu "Linux/MIPS Kernel Configuration"
@ -1646,8 +1647,16 @@ config MIPS_MT_SMP
select SYS_SUPPORTS_SMP
select SMP_UP
help
This is a kernel model which is also known a VSMP or lately
has been marketesed into SMVP.
This is a kernel model which is known a VSMP but lately has been
marketesed into SMVP.
Virtual SMP uses the processor's VPEs to implement virtual
processors. In currently available configuration of the 34K processor
this allows for a dual processor. Both processors will share the same
primary caches; each will obtain the half of the TLB for it's own
exclusive use. For a layman this model can be described as similar to
what Intel calls Hyperthreading.
For further information see http://www.linux-mips.org/wiki/34K#VSMP
config MIPS_MT_SMTC
bool "SMTC: Use all TCs on all VPEs for SMP"
@ -1664,6 +1673,14 @@ config MIPS_MT_SMTC
help
This is a kernel model which is known a SMTC or lately has been
marketesed into SMVP.
is presenting the available TC's of the core as processors to Linux.
On currently available 34K processors this means a Linux system will
see up to 5 processors. The implementation of the SMTC kernel differs
significantly from VSMP and cannot efficiently coexist in the same
kernel binary so the choice between VSMP and SMTC is a compile time
decision.
For further information see http://www.linux-mips.org/wiki/34K#SMTC
endchoice

5
arch/mips/alchemy/common/prom.c
View File

@ -43,7 +43,7 @@ int prom_argc;
char **prom_argv;
char **prom_envp;
void prom_init_cmdline(void)
void __init prom_init_cmdline(void)
{
int i;
@ -104,7 +104,7 @@ static inline void str2eaddr(unsigned char *ea, unsigned char *str)
}
}
int prom_get_ethernet_addr(char *ethernet_addr)
int __init prom_get_ethernet_addr(char *ethernet_addr)
{
char *ethaddr_str;
@ -123,7 +123,6 @@ int prom_get_ethernet_addr(char *ethernet_addr)
return 0;
}
EXPORT_SYMBOL(prom_get_ethernet_addr);
void __init prom_free_prom_memory(void)
{

2
arch/mips/boot/compressed/Makefile
View File

@ -59,7 +59,7 @@ $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
hostprogs-y := calc_vmlinuz_load_addr
VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
$(objtree)/$(KBUILD_IMAGE) $(VMLINUX_LOAD_ADDRESS))
$(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
vmlinuzobjs-y += $(obj)/piggy.o

4
arch/mips/cavium-octeon/Kconfig
View File

@ -83,3 +83,7 @@ config ARCH_SPARSEMEM_ENABLE
def_bool y
select SPARSEMEM_STATIC
depends on CPU_CAVIUM_OCTEON
config CAVIUM_OCTEON_HELPER
def_bool y
depends on OCTEON_ETHERNET || PCI

2
arch/mips/cavium-octeon/cpu.c
View File

@ -41,7 +41,7 @@ static int cnmips_cu2_call(struct notifier_block *nfb, unsigned long action,
return NOTIFY_OK; /* Let default notifier send signals */
}
static int cnmips_cu2_setup(void)
static int __init cnmips_cu2_setup(void)
{
return cu2_notifier(cnmips_cu2_call, 0);
}

2
arch/mips/cavium-octeon/executive/Makefile
View File

@ -11,4 +11,4 @@
obj-y += cvmx-bootmem.o cvmx-l2c.o cvmx-sysinfo.o octeon-model.o
obj-$(CONFIG_PCI) += cvmx-helper-errata.o cvmx-helper-jtag.o
obj-$(CONFIG_CAVIUM_OCTEON_HELPER) += cvmx-helper-errata.o cvmx-helper-jtag.o

4
arch/mips/include/asm/atomic.h
View File

@ -782,6 +782,10 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
*/
#define atomic64_add_negative(i, v) (atomic64_add_return(i, (v)) < 0)
#else /* !CONFIG_64BIT */
#include <asm-generic/atomic64.h>
#endif /* CONFIG_64BIT */
/*

2
arch/mips/include/asm/compat.h
View File

@ -145,7 +145,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr)
return (u32)(unsigned long)uptr;
}
static inline void __user *compat_alloc_user_space(long len)
static inline void __user *arch_compat_alloc_user_space(long len)
{
struct pt_regs *regs = (struct pt_regs *)
((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;

2
arch/mips/include/asm/cop2.h
View File

@ -24,7 +24,7 @@ extern int cu2_notifier_call_chain(unsigned long val, void *v);
#define cu2_notifier(fn, pri) \
({ \
static struct notifier_block fn##_nb __cpuinitdata = { \
static struct notifier_block fn##_nb = { \
.notifier_call = fn, \
.priority = pri \
}; \

1
arch/mips/include/asm/gic.h
View File

@ -321,6 +321,7 @@ struct gic_intrmask_regs {
*/
struct gic_intr_map {
unsigned int cpunum; /* Directed to this CPU */
#define GIC_UNUSED 0xdead /* Dummy data */
unsigned int pin; /* Directed to this Pin */
unsigned int polarity; /* Polarity : +/- */
unsigned int trigtype; /* Trigger : Edge/Levl */

2
arch/mips/include/asm/mach-tx49xx/kmalloc.h
View File

@ -1,6 +1,6 @@
#ifndef __ASM_MACH_TX49XX_KMALLOC_H
#define __ASM_MACH_TX49XX_KMALLOC_H
#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES
#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
#endif /* __ASM_MACH_TX49XX_KMALLOC_H */

3
arch/mips/include/asm/mips-boards/maltaint.h
View File

@ -88,9 +88,6 @@
#define GIC_EXT_INTR(x) x
/* Dummy data */
#define X 0xdead
/* External Interrupts used for IPI */
#define GIC_IPI_EXT_INTR_RESCHED_VPE0 16
#define GIC_IPI_EXT_INTR_CALLFNC_VPE0 17

14
arch/mips/include/asm/page.h
View File

@ -150,6 +150,20 @@ typedef struct { unsigned long pgprot; } pgprot_t;
((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET)
#endif
#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET))
/*
* RELOC_HIDE was originally added by 6007b903dfe5f1d13e0c711ac2894bdd4a61b1ad
* (lmo) rsp. 8431fd094d625b94d364fe393076ccef88e6ce18 (kernel.org). The
* discussion can be found in lkml posting
* <a2ebde260608230500o3407b108hc03debb9da6e62c@mail.gmail.com> which is
* archived at http://lists.linuxcoding.com/kernel/2006-q3/msg17360.html
*
* It is unclear if the misscompilations mentioned in
* http://lkml.org/lkml/2010/8/8/138 also affect MIPS so we keep this one
* until GCC 3.x has been retired before we can apply
* https://patchwork.linux-mips.org/patch/1541/
*/
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)

3
arch/mips/include/asm/thread_info.h
View File

@ -146,7 +146,8 @@ register struct thread_info *__current_thread_info __asm__("$28");
#define _TIF_LOAD_WATCH (1<<TIF_LOAD_WATCH)
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK (0x0000ffef & ~_TIF_SECCOMP)
#define _TIF_WORK_MASK (0x0000ffef & \
~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT))
/* work to do on any return to u-space */
#define _TIF_ALLWORK_MASK (0x8000ffff & ~_TIF_SECCOMP)

21
arch/mips/include/asm/unistd.h
View File

@ -356,16 +356,19 @@
#define __NR_perf_event_open (__NR_Linux + 333)
#define __NR_accept4 (__NR_Linux + 334)
#define __NR_recvmmsg (__NR_Linux + 335)
#define __NR_fanotify_init (__NR_Linux + 336)
#define __NR_fanotify_mark (__NR_Linux + 337)
#define __NR_prlimit64 (__NR_Linux + 338)
/*
* Offset of the last Linux o32 flavoured syscall
*/
#define __NR_Linux_syscalls 335
#define __NR_Linux_syscalls 338
#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
#define __NR_O32_Linux 4000
#define __NR_O32_Linux_syscalls 335
#define __NR_O32_Linux_syscalls 338
#if _MIPS_SIM == _MIPS_SIM_ABI64
@ -668,16 +671,19 @@
#define __NR_perf_event_open (__NR_Linux + 292)
#define __NR_accept4 (__NR_Linux + 293)
#define __NR_recvmmsg (__NR_Linux + 294)
#define __NR_fanotify_init (__NR_Linux + 295)
#define __NR_fanotify_mark (__NR_Linux + 296)
#define __NR_prlimit64 (__NR_Linux + 297)
/*
* Offset of the last Linux 64-bit flavoured syscall
*/
#define __NR_Linux_syscalls 294
#define __NR_Linux_syscalls 297
#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
#define __NR_64_Linux 5000
#define __NR_64_Linux_syscalls 294
#define __NR_64_Linux_syscalls 297
#if _MIPS_SIM == _MIPS_SIM_NABI32
@ -985,16 +991,19 @@
#define __NR_accept4 (__NR_Linux + 297)
#define __NR_recvmmsg (__NR_Linux + 298)
#define __NR_getdents64 (__NR_Linux + 299)
#define __NR_fanotify_init (__NR_Linux + 300)
#define __NR_fanotify_mark (__NR_Linux + 301)
#define __NR_prlimit64 (__NR_Linux + 302)
/*
* Offset of the last N32 flavoured syscall
*/
#define __NR_Linux_syscalls 299
#define __NR_Linux_syscalls 302
#endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
#define __NR_N32_Linux 6000
#define __NR_N32_Linux_syscalls 299
#define __NR_N32_Linux_syscalls 302
#ifdef __KERNEL__

5
arch/mips/kernel/irq-gic.c
View File

@ -7,7 +7,6 @@
#include <asm/io.h>
#include <asm/gic.h>
#include <asm/gcmpregs.h>
#include <asm/mips-boards/maltaint.h>
#include <asm/irq.h>
#include <linux/hardirq.h>
#include <asm-generic/bitops/find.h>
@ -131,7 +130,7 @@ static int gic_set_affinity(unsigned int irq, const struct cpumask *cpumask)
int i;
irq -= _irqbase;
pr_debug(KERN_DEBUG "%s(%d) called\n", __func__, irq);
pr_debug("%s(%d) called\n", __func__, irq);
cpumask_and(&tmp, cpumask, cpu_online_mask);
if (cpus_empty(tmp))
return -1;
@ -222,7 +221,7 @@ static void __init gic_basic_init(int numintrs, int numvpes,
/* Setup specifics */
for (i = 0; i < mapsize; i++) {
cpu = intrmap[i].cpunum;
if (cpu == X)
if (cpu == GIC_UNUSED)
continue;
if (cpu == 0 && i != 0 && intrmap[i].flags == 0)
continue;

2
arch/mips/kernel/kgdb.c
View File

@ -283,7 +283,7 @@ static int kgdb_mips_notify(struct notifier_block *self, unsigned long cmd,
struct pt_regs *regs = args->regs;
int trap = (regs->cp0_cause & 0x7c) >> 2;
/* Userpace events, ignore. */
/* Userspace events, ignore. */
if (user_mode(regs))
return NOTIFY_DONE;

2
arch/mips/kernel/kspd.c
View File

@ -251,7 +251,7 @@ void sp_work_handle_request(void)
memset(&tz, 0, sizeof(tz));
if ((ret.retval = sp_syscall(__NR_gettimeofday, (int)&tv,
(int)&tz, 0, 0)) == 0)
ret.retval = tv.tv_sec;
ret.retval = tv.tv_sec;
break;
case MTSP_SYSCALL_EXIT:

7
arch/mips/kernel/linux32.c
View File

@ -341,3 +341,10 @@ asmlinkage long sys32_lookup_dcookie(u32 a0, u32 a1, char __user *buf,
{
return sys_lookup_dcookie(merge_64(a0, a1), buf, len);
}
SYSCALL_DEFINE6(32_fanotify_mark, int, fanotify_fd, unsigned int, flags,
u64, a3, u64, a4, int, dfd, const char __user *, pathname)
{
return sys_fanotify_mark(fanotify_fd, flags, merge_64(a3, a4),
dfd, pathname);
}

5
arch/mips/kernel/scall32-o32.S
View File

@ -583,7 +583,10 @@ einval: li v0, -ENOSYS
sys sys_rt_tgsigqueueinfo 4
sys sys_perf_event_open 5
sys sys_accept4 4
sys sys_recvmmsg 5
sys sys_recvmmsg 5 /* 4335 */
sys sys_fanotify_init 2
sys sys_fanotify_mark 6
sys sys_prlimit64 4
.endm
/* We pre-compute the number of _instruction_ bytes needed to

7
arch/mips/kernel/scall64-64.S
View File

@ -416,9 +416,12 @@ sys_call_table:
PTR sys_pipe2
PTR sys_inotify_init1
PTR sys_preadv
PTR sys_pwritev /* 5390 */
PTR sys_pwritev /* 5290 */
PTR sys_rt_tgsigqueueinfo
PTR sys_perf_event_open
PTR sys_accept4
PTR sys_recvmmsg
PTR sys_recvmmsg
PTR sys_fanotify_init /* 5295 */
PTR sys_fanotify_mark
PTR sys_prlimit64
.size sys_call_table,.-sys_call_table

5
arch/mips/kernel/scall64-n32.S
View File

@ -419,5 +419,8 @@ EXPORT(sysn32_call_table)
PTR sys_perf_event_open
PTR sys_accept4
PTR compat_sys_recvmmsg
PTR sys_getdents
PTR sys_getdents64
PTR sys_fanotify_init /* 6300 */
PTR sys_fanotify_mark
PTR sys_prlimit64
.size sysn32_call_table,.-sysn32_call_table

5
arch/mips/kernel/scall64-o32.S
View File

@ -538,5 +538,8 @@ sys_call_table:
PTR compat_sys_rt_tgsigqueueinfo
PTR sys_perf_event_open
PTR sys_accept4
PTR compat_sys_recvmmsg
PTR compat_sys_recvmmsg /* 4335 */
PTR sys_fanotify_init
PTR sys_32_fanotify_mark
PTR sys_prlimit64
.size sys_call_table,.-sys_call_table

28
arch/mips/mm/dma-default.c
View File

@ -44,27 +44,39 @@ static inline int cpu_is_noncoherent_r10000(struct device *dev)
static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)
{
gfp_t dma_flag;
/* ignore region specifiers */
gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
#ifdef CONFIG_ZONE_DMA
#ifdef CONFIG_ISA
if (dev == NULL)
gfp |= __GFP_DMA;
else if (dev->coherent_dma_mask < DMA_BIT_MASK(24))
gfp |= __GFP_DMA;
dma_flag = __GFP_DMA;
else
#endif
#ifdef CONFIG_ZONE_DMA32
#if defined(CONFIG_ZONE_DMA32) && defined(CONFIG_ZONE_DMA)
if (dev->coherent_dma_mask < DMA_BIT_MASK(32))
gfp |= __GFP_DMA32;
dma_flag = __GFP_DMA;
else if (dev->coherent_dma_mask < DMA_BIT_MASK(64))
dma_flag = __GFP_DMA32;
else
#endif
;
#if defined(CONFIG_ZONE_DMA32) && !defined(CONFIG_ZONE_DMA)
if (dev->coherent_dma_mask < DMA_BIT_MASK(64))
dma_flag = __GFP_DMA32;
else
#endif
#if defined(CONFIG_ZONE_DMA) && !defined(CONFIG_ZONE_DMA32)
if (dev->coherent_dma_mask < DMA_BIT_MASK(64))
dma_flag = __GFP_DMA;
else
#endif
dma_flag = 0;
/* Don't invoke OOM killer */
gfp |= __GFP_NORETRY;
return gfp;
return gfp | dma_flag;
}
void *dma_alloc_noncoherent(struct device *dev, size_t size,

2
arch/mips/mm/sc-rm7k.c
View File

@ -30,7 +30,7 @@
#define tc_lsize 32
extern unsigned long icache_way_size, dcache_way_size;
unsigned long tcache_size;
static unsigned long tcache_size;
#include <asm/r4kcache.h>

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