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Linux 3.5-rc7 

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Merge tag 'v3.5-rc7' into regulator-drivers

Linux 3.5-rc7
This commit is contained in:
Mark Brown 2012-07-15 21:49:21 +01:00
parent 7c7fac3058 84a1caf145
commit d5b2e30bdc
351 changed files with 3428 additions and 2099 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
Documentation/ABI/testing/sysfs-block-rssd
View File

@ -1,26 +1,5 @@
What: /sys/block/rssd*/registers
Date: March 2012
KernelVersion: 3.3
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Dumps below driver information and
hardware registers.
- S ACTive
- Command Issue
- Completed
- PORT IRQ STAT
- HOST IRQ STAT
- Allocated
- Commands in Q
What: /sys/block/rssd*/status
Date: April 2012
KernelVersion: 3.4
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Indicates the status of the device.
What: /sys/block/rssd*/flags
Date: May 2012
KernelVersion: 3.5
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Dumps the flags in port and driver
data structure

17
Documentation/ABI/testing/sysfs-class-mtd
View File

@ -142,13 +142,14 @@ KernelVersion: 3.4
Contact: linux-mtd@lists.infradead.org
Description:
This allows the user to examine and adjust the criteria by which
mtd returns -EUCLEAN from mtd_read(). If the maximum number of
bit errors that were corrected on any single region comprising
an ecc step (as reported by the driver) equals or exceeds this
value, -EUCLEAN is returned. Otherwise, absent an error, 0 is
returned. Higher layers (e.g., UBI) use this return code as an
indication that an erase block may be degrading and should be
scrutinized as a candidate for being marked as bad.
mtd returns -EUCLEAN from mtd_read() and mtd_read_oob(). If the
maximum number of bit errors that were corrected on any single
region comprising an ecc step (as reported by the driver) equals
or exceeds this value, -EUCLEAN is returned. Otherwise, absent
an error, 0 is returned. Higher layers (e.g., UBI) use this
return code as an indication that an erase block may be
degrading and should be scrutinized as a candidate for being
marked as bad.
The initial value may be specified by the flash device driver.
If not, then the default value is ecc_strength.
@ -167,7 +168,7 @@ Description:
block degradation, but high enough to avoid the consequences of
a persistent return value of -EUCLEAN on devices where sticky
bitflips occur. Note that if bitflip_threshold exceeds
ecc_strength, -EUCLEAN is never returned by mtd_read().
ecc_strength, -EUCLEAN is never returned by the read operations.
Conversely, if bitflip_threshold is zero, -EUCLEAN is always
returned, absent a hard error.

2
Documentation/DocBook/media/v4l/controls.xml
View File

@ -3988,7 +3988,7 @@ interface and may change in the future.</para>
from RGB to Y'CbCr color space.
</entry>
</row>
<row id = "v4l2-jpeg-chroma-subsampling">
<row>
<entrytbl spanname="descr" cols="2">
<tbody valign="top">
<row>

7
Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml
View File

@ -284,13 +284,6 @@ These controls are described in <xref
processing controls. These controls are described in <xref
linkend="image-process-controls" />.</entry>
</row>
<row>
<entry><constant>V4L2_CTRL_CLASS_JPEG</constant></entry>
<entry>0x9d0000</entry>
<entry>The class containing JPEG compression controls.
These controls are described in <xref
linkend="jpeg-controls" />.</entry>
</row>
</tbody>
</tgroup>
</table>

129
Documentation/device-mapper/verity.txt
View File

@ -7,39 +7,39 @@ This target is read-only.
Construction Parameters
=======================
<version> <dev> <hash_dev> <hash_start>
<version> <dev> <hash_dev>
<data_block_size> <hash_block_size>
<num_data_blocks> <hash_start_block>
<algorithm> <digest> <salt>
<version>
This is the version number of the on-disk format.
This is the type of the on-disk hash format.
0 is the original format used in the Chromium OS.
The salt is appended when hashing, digests are stored continuously and
the rest of the block is padded with zeros.
The salt is appended when hashing, digests are stored continuously and
the rest of the block is padded with zeros.
1 is the current format that should be used for new devices.
The salt is prepended when hashing and each digest is
padded with zeros to the power of two.
The salt is prepended when hashing and each digest is
padded with zeros to the power of two.
<dev>
This is the device containing the data the integrity of which needs to be
This is the device containing data, the integrity of which needs to be
checked. It may be specified as a path, like /dev/sdaX, or a device number,
<major>:<minor>.
<hash_dev>
This is the device that that supplies the hash tree data. It may be
This is the device that supplies the hash tree data. It may be
specified similarly to the device path and may be the same device. If the
same device is used, the hash_start should be outside of the dm-verity
configured device size.
same device is used, the hash_start should be outside the configured
dm-verity device.
<data_block_size>
The block size on a data device. Each block corresponds to one digest on
the hash device.
The block size on a data device in bytes.
Each block corresponds to one digest on the hash device.
<hash_block_size>
The size of a hash block.
The size of a hash block in bytes.
<num_data_blocks>
The number of data blocks on the data device. Additional blocks are
@ -65,7 +65,7 @@ Construction Parameters
Theory of operation
===================
dm-verity is meant to be setup as part of a verified boot path. This
dm-verity is meant to be set up as part of a verified boot path. This
may be anything ranging from a boot using tboot or trustedgrub to just
booting from a known-good device (like a USB drive or CD).
@ -73,20 +73,20 @@ When a dm-verity device is configured, it is expected that the caller
has been authenticated in some way (cryptographic signatures, etc).
After instantiation, all hashes will be verified on-demand during
disk access. If they cannot be verified up to the root node of the
tree, the root hash, then the I/O will fail. This should identify
tree, the root hash, then the I/O will fail. This should detect
tampering with any data on the device and the hash data.
Cryptographic hashes are used to assert the integrity of the device on a
per-block basis. This allows for a lightweight hash computation on first read
into the page cache. Block hashes are stored linearly-aligned to the nearest
block the size of a page.
per-block basis. This allows for a lightweight hash computation on first read
into the page cache. Block hashes are stored linearly, aligned to the nearest
block size.
Hash Tree
---------
Each node in the tree is a cryptographic hash. If it is a leaf node, the hash
is of some block data on disk. If it is an intermediary node, then the hash is
of a number of child nodes.
of some data block on disk is calculated. If it is an intermediary node,
the hash of a number of child nodes is calculated.
Each entry in the tree is a collection of neighboring nodes that fit in one
block. The number is determined based on block_size and the size of the
@ -110,63 +110,23 @@ alg = sha256, num_blocks = 32768, block_size = 4096
On-disk format
==============
Below is the recommended on-disk format. The verity kernel code does not
read the on-disk header. It only reads the hash blocks which directly
follow the header. It is expected that a user-space tool will verify the
integrity of the verity_header and then call dmsetup with the correct
parameters. Alternatively, the header can be omitted and the dmsetup
parameters can be passed via the kernel command-line in a rooted chain
of trust where the command-line is verified.
The verity kernel code does not read the verity metadata on-disk header.
It only reads the hash blocks which directly follow the header.
It is expected that a user-space tool will verify the integrity of the
verity header.
The on-disk format is especially useful in cases where the hash blocks
are on a separate partition. The magic number allows easy identification
of the partition contents. Alternatively, the hash blocks can be stored
in the same partition as the data to be verified. In such a configuration
the filesystem on the partition would be sized a little smaller than
the full-partition, leaving room for the hash blocks.
struct superblock {
uint8_t signature[8]
"verity\0\0";
uint8_t version;
1 - current format
uint8_t data_block_bits;
log2(data block size)
uint8_t hash_block_bits;
log2(hash block size)
uint8_t pad1[1];
zero padding
uint16_t salt_size;
big-endian salt size
uint8_t pad2[2];
zero padding
uint32_t data_blocks_hi;
big-endian high 32 bits of the 64-bit number of data blocks
uint32_t data_blocks_lo;
big-endian low 32 bits of the 64-bit number of data blocks
uint8_t algorithm[16];
cryptographic algorithm
uint8_t salt[384];
salt (the salt size is specified above)
uint8_t pad3[88];
zero padding to 512-byte boundary
}
Alternatively, the header can be omitted and the dmsetup parameters can
be passed via the kernel command-line in a rooted chain of trust where
the command-line is verified.
Directly following the header (and with sector number padded to the next hash
block boundary) are the hash blocks which are stored a depth at a time
(starting from the root), sorted in order of increasing index.
The full specification of kernel parameters and on-disk metadata format
is available at the cryptsetup project's wiki page
http://code.google.com/p/cryptsetup/wiki/DMVerity
Status
======
V (for Valid) is returned if every check performed so far was valid.
@ -174,21 +134,22 @@ If any check failed, C (for Corruption) is returned.
Example
=======
Setup a device:
dmsetup create vroot --table \
"0 2097152 "\
"verity 1 /dev/sda1 /dev/sda2 4096 4096 2097152 1 "\
Set up a device:
# dmsetup create vroot --readonly --table \
"0 2097152 verity 1 /dev/sda1 /dev/sda2 4096 4096 262144 1 sha256 "\
"4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 "\
"1234000000000000000000000000000000000000000000000000000000000000"
A command line tool veritysetup is available to compute or verify
the hash tree or activate the kernel driver. This is available from
the LVM2 upstream repository and may be supplied as a package called
device-mapper-verity-tools:
git://sources.redhat.com/git/lvm2
http://sourceware.org/git/?p=lvm2.git
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/verity?cvsroot=lvm2
the hash tree or activate the kernel device. This is available from
the cryptsetup upstream repository http://code.google.com/p/cryptsetup/
(as a libcryptsetup extension).
veritysetup -a vroot /dev/sda1 /dev/sda2 \
4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
Create hash on the device:
# veritysetup format /dev/sda1 /dev/sda2
...
Root hash: 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
Activate the device:
# veritysetup create vroot /dev/sda1 /dev/sda2 \
4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076

1
Documentation/devicetree/bindings/input/fsl-mma8450.txt
View File

@ -2,6 +2,7 @@
Required properties:
- compatible : "fsl,mma8450".
- reg: the I2C address of MMA8450
Example:

4
Documentation/devicetree/bindings/mfd/mc13xxx.txt
View File

@ -46,8 +46,8 @@ Examples:
ecspi@70010000 { /* ECSPI1 */
fsl,spi-num-chipselects = <2>;
cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
<&gpio3 25 0>; /* GPIO4_25 */
cs-gpios = <&gpio4 24 0>, /* GPIO4_24 */
<&gpio4 25 0>; /* GPIO4_25 */
status = "okay";
pmic: mc13892@0 {

4
Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
View File

@ -29,6 +29,6 @@ esdhc@70008000 {
compatible = "fsl,imx51-esdhc";
reg = <0x70008000 0x4000>;
interrupts = <2>;
cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */
wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */
cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */
wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */
};

2
Documentation/devicetree/bindings/net/fsl-fec.txt
View File

@ -19,6 +19,6 @@ ethernet@83fec000 {
reg = <0x83fec000 0x4000>;
interrupts = <87>;
phy-mode = "mii";
phy-reset-gpios = <&gpio1 14 0>; /* GPIO2_14 */
phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
local-mac-address = [00 04 9F 01 1B B9];
};

4
Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
View File

@ -17,6 +17,6 @@ ecspi@70010000 {
reg = <0x70010000 0x4000>;
interrupts = <36>;
fsl,spi-num-chipselects = <2>;
cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
<&gpio3 25 0>; /* GPIO4_25 */
cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */
<&gpio3 25 0>; /* GPIO3_25 */
};

1
Documentation/devicetree/bindings/vendor-prefixes.txt
View File

@ -3,6 +3,7 @@ Device tree binding vendor prefix registry. Keep list in alphabetical order.
This isn't an exhaustive list, but you should add new prefixes to it before
using them to avoid name-space collisions.
ad Avionic Design GmbH
adi Analog Devices, Inc.
amcc Applied Micro Circuits Corporation (APM, formally AMCC)
apm Applied Micro Circuits Corporation (APM)

57
Documentation/prctl/no_new_privs.txt Normal file
View File

@ -0,0 +1,57 @@
The execve system call can grant a newly-started program privileges that
its parent did not have. The most obvious examples are setuid/setgid
programs and file capabilities. To prevent the parent program from
gaining these privileges as well, the kernel and user code must be
careful to prevent the parent from doing anything that could subvert the
child. For example:
- The dynamic loader handles LD_* environment variables differently if
a program is setuid.
- chroot is disallowed to unprivileged processes, since it would allow
/etc/passwd to be replaced from the point of view of a process that
inherited chroot.
- The exec code has special handling for ptrace.
These are all ad-hoc fixes. The no_new_privs bit (since Linux 3.5) is a
new, generic mechanism to make it safe for a process to modify its
execution environment in a manner that persists across execve. Any task
can set no_new_privs. Once the bit is set, it is inherited across fork,
clone, and execve and cannot be unset. With no_new_privs set, execve
promises not to grant the privilege to do anything that could not have
been done without the execve call. For example, the setuid and setgid
bits will no longer change the uid or gid; file capabilities will not
add to the permitted set, and LSMs will not relax constraints after
execve.
To set no_new_privs, use prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0).
Be careful, though: LSMs might also not tighten constraints on exec
in no_new_privs mode. (This means that setting up a general-purpose
service launcher to set no_new_privs before execing daemons may
interfere with LSM-based sandboxing.)
Note that no_new_privs does not prevent privilege changes that do not
involve execve. An appropriately privileged task can still call
setuid(2) and receive SCM_RIGHTS datagrams.
There are two main use cases for no_new_privs so far:
- Filters installed for the seccomp mode 2 sandbox persist across
execve and can change the behavior of newly-executed programs.
Unprivileged users are therefore only allowed to install such filters
if no_new_privs is set.
- By itself, no_new_privs can be used to reduce the attack surface
available to an unprivileged user. If everything running with a
given uid has no_new_privs set, then that uid will be unable to
escalate its privileges by directly attacking setuid, setgid, and
fcap-using binaries; it will need to compromise something without the
no_new_privs bit set first.
In the future, other potentially dangerous kernel features could become
available to unprivileged tasks if no_new_privs is set. In principle,
several options to unshare(2) and clone(2) would be safe when
no_new_privs is set, and no_new_privs + chroot is considerable less
dangerous than chroot by itself.

17
Documentation/virtual/kvm/api.txt
View File

@ -1930,6 +1930,23 @@ The "pte_enc" field provides a value that can OR'ed into the hash
PTE's RPN field (ie, it needs to be shifted left by 12 to OR it
into the hash PTE second double word).
4.75 KVM_IRQFD
Capability: KVM_CAP_IRQFD
Architectures: x86
Type: vm ioctl
Parameters: struct kvm_irqfd (in)
Returns: 0 on success, -1 on error
Allows setting an eventfd to directly trigger a guest interrupt.
kvm_irqfd.fd specifies the file descriptor to use as the eventfd and
kvm_irqfd.gsi specifies the irqchip pin toggled by this event. When
an event is tiggered on the eventfd, an interrupt is injected into
the guest using the specified gsi pin. The irqfd is removed using
the KVM_IRQFD_FLAG_DEASSIGN flag, specifying both kvm_irqfd.fd
and kvm_irqfd.gsi.
5. The kvm_run structure
------------------------

7
MAINTAINERS
View File

@ -4654,8 +4654,8 @@ L: netfilter@vger.kernel.org
L: coreteam@netfilter.org
W: http://www.netfilter.org/
W: http://www.iptables.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next-2.6.git
T: git git://1984.lsi.us.es/nf
T: git git://1984.lsi.us.es/nf-next
S: Supported
F: include/linux/netfilter*
F: include/linux/netfilter/
@ -4857,6 +4857,7 @@ M: Kevin Hilman <khilman@ti.com>
L: linux-omap@vger.kernel.org
S: Maintained
F: arch/arm/*omap*/*pm*
F: drivers/cpufreq/omap-cpufreq.c
OMAP POWERDOMAIN/CLOCKDOMAIN SOC ADAPTATION LAYER SUPPORT
M: Rajendra Nayak <rnayak@ti.com>
@ -5909,7 +5910,7 @@ M: Ingo Molnar <mingo@redhat.com>
M: Peter Zijlstra <peterz@infradead.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
S: Maintained
F: kernel/sched*
F: kernel/sched/
F: include/linux/sched.h
SCORE ARCHITECTURE

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 5
SUBLEVEL = 0
EXTRAVERSION = -rc5
EXTRAVERSION = -rc7
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*

1
arch/arm/configs/omap2plus_defconfig
View File

@ -176,7 +176,6 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_DEVICEFS=y
CONFIG_USB_SUSPEND=y
CONFIG_USB_MON=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_WDM=y
CONFIG_USB_STORAGE=y
CONFIG_USB_LIBUSUAL=y

2
arch/arm/include/asm/atomic.h
View File

@ -243,7 +243,7 @@ typedef struct {
#define ATOMIC64_INIT(i) { (i) }
static inline u64 atomic64_read(atomic64_t *v)
static inline u64 atomic64_read(const atomic64_t *v)
{
u64 result;

18
arch/arm/include/asm/domain.h
View File

@ -60,13 +60,13 @@
#ifndef __ASSEMBLY__
#ifdef CONFIG_CPU_USE_DOMAINS
#define set_domain(x) \
do { \
__asm__ __volatile__( \
"mcr p15, 0, %0, c3, c0 @ set domain" \
: : "r" (x)); \
isb(); \
} while (0)
static inline void set_domain(unsigned val)
{
asm volatile(
"mcr p15, 0, %0, c3, c0 @ set domain"
: : "r" (val));
isb();
}
#define modify_domain(dom,type) \
do { \
@ -78,8 +78,8 @@
} while (0)
#else
#define set_domain(x) do { } while (0)
#define modify_domain(dom,type) do { } while (0)
static inline void set_domain(unsigned val) { }
static inline void modify_domain(unsigned dom, unsigned type) { }
#endif
/*

5
arch/arm/include/asm/thread_info.h
View File

@ -148,7 +148,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
#define TIF_SYSCALL_TRACE 8
#define TIF_SYSCALL_AUDIT 9
#define TIF_SYSCALL_RESTARTSYS 10
#define TIF_POLLING_NRFLAG 16
#define TIF_USING_IWMMXT 17
#define TIF_MEMDIE 18 /* is terminating due to OOM killer */
@ -164,11 +163,9 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
#define _TIF_SYSCALL_RESTARTSYS (1 << TIF_SYSCALL_RESTARTSYS)
/* Checks for any syscall work in entry-common.S */
#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
_TIF_SYSCALL_RESTARTSYS)
#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
/*
* Change these and you break ASM code in entry-common.S

4
arch/arm/kernel/kprobes-test-arm.c
View File

@ -187,8 +187,8 @@ void kprobe_arm_test_cases(void)
TEST_BF_R ("mov pc, r",0,2f,"")
TEST_BF_RR("mov pc, r",0,2f,", asl r",1,0,"")
TEST_BB( "sub pc, pc, #1b-2b+8")
#if __LINUX_ARM_ARCH__ >= 6
TEST_BB( "sub pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before ARMv6 */
#if __LINUX_ARM_ARCH__ == 6 && !defined(CONFIG_CPU_V7)
TEST_BB( "sub pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before and after ARMv6 */
#endif
TEST_BB_R( "sub pc, pc, r",14, 1f-2f+8,"")
TEST_BB_R( "rsb pc, r",14,1f-2f+8,", pc")

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

@ -503,7 +503,7 @@ __hw_perf_event_init(struct perf_event *event)
event_requires_mode_exclusion(&event->attr)) {
pr_debug("ARM performance counters do not support "
"mode exclusion\n");
return -EPERM;
return -EOPNOTSUPP;
}
/*

3
arch/arm/kernel/ptrace.c
View File

@ -25,7 +25,6 @@
#include <linux/regset.h>
#include <linux/audit.h>
#include <linux/tracehook.h>
#include <linux/unistd.h>
#include <asm/pgtable.h>
#include <asm/traps.h>
@ -918,8 +917,6 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0,
regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);
if (why == 0 && test_and_clear_thread_flag(TIF_SYSCALL_RESTARTSYS))
scno = __NR_restart_syscall - __NR_SYSCALL_BASE;
if (!test_thread_flag(TIF_SYSCALL_TRACE))
return scno;

46
arch/arm/kernel/signal.c
View File

@ -27,6 +27,7 @@
*/
#define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE))
#define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE))
#define SWI_SYS_RESTART (0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE)
/*
* With EABI, the syscall number has to be loaded into r7.
@ -46,6 +47,18 @@ const unsigned long sigreturn_codes[7] = {
MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN,
};
/*
* Either we support OABI only, or we have EABI with the OABI
* compat layer enabled. In the later case we don't know if
* user space is EABI or not, and if not we must not clobber r7.
* Always using the OABI syscall solves that issue and works for
* all those cases.
*/
const unsigned long syscall_restart_code[2] = {
SWI_SYS_RESTART, /* swi __NR_restart_syscall */
0xe49df004, /* ldr pc, [sp], #4 */
};
/*
* atomically swap in the new signal mask, and wait for a signal.
*/
@ -592,10 +605,12 @@ static void do_signal(struct pt_regs *regs, int syscall)
case -ERESTARTNOHAND:
case -ERESTARTSYS:
case -ERESTARTNOINTR:
case -ERESTART_RESTARTBLOCK:
regs->ARM_r0 = regs->ARM_ORIG_r0;
regs->ARM_pc = restart_addr;
break;
case -ERESTART_RESTARTBLOCK:
regs->ARM_r0 = -EINTR;
break;
}
}
@ -611,14 +626,12 @@ static void do_signal(struct pt_regs *regs, int syscall)
* debugger has chosen to restart at a different PC.
*/
if (regs->ARM_pc == restart_addr) {
if (retval == -ERESTARTNOHAND ||
retval == -ERESTART_RESTARTBLOCK
if (retval == -ERESTARTNOHAND
|| (retval == -ERESTARTSYS
&& !(ka.sa.sa_flags & SA_RESTART))) {
regs->ARM_r0 = -EINTR;
regs->ARM_pc = continue_addr;
}
clear_thread_flag(TIF_SYSCALL_RESTARTSYS);
}
handle_signal(signr, &ka, &info, regs);
@ -632,8 +645,29 @@ static void do_signal(struct pt_regs *regs, int syscall)
* ignore the restart.
*/
if (retval == -ERESTART_RESTARTBLOCK
&& regs->ARM_pc == restart_addr)
set_thread_flag(TIF_SYSCALL_RESTARTSYS);
&& regs->ARM_pc == continue_addr) {
if (thumb_mode(regs)) {
regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE;
regs->ARM_pc -= 2;
} else {
#if defined(CONFIG_AEABI) && !defined(CONFIG_OABI_COMPAT)
regs->ARM_r7 = __NR_restart_syscall;
regs->ARM_pc -= 4;
#else
u32 __user *usp;
regs->ARM_sp -= 4;
usp = (u32 __user *)regs->ARM_sp;
if (put_user(regs->ARM_pc, usp) == 0) {
regs->ARM_pc = KERN_RESTART_CODE;
} else {
regs->ARM_sp += 4;
force_sigsegv(0, current);
}
#endif
}
}
}
restore_saved_sigmask();

2
arch/arm/kernel/signal.h
View File

@ -8,5 +8,7 @@
* published by the Free Software Foundation.
*/
#define KERN_SIGRETURN_CODE (CONFIG_VECTORS_BASE + 0x00000500)
#define KERN_RESTART_CODE (KERN_SIGRETURN_CODE + sizeof(sigreturn_codes))
extern const unsigned long sigreturn_codes[7];
extern const unsigned long syscall_restart_code[2];

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

@ -820,6 +820,8 @@ void __init early_trap_init(void *vectors_base)
*/
memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE),
sigreturn_codes, sizeof(sigreturn_codes));
memcpy((void *)(vectors + KERN_RESTART_CODE - CONFIG_VECTORS_BASE),
syscall_restart_code, sizeof(syscall_restart_code));
flush_icache_range(vectors, vectors + PAGE_SIZE);
modify_domain(DOMAIN_USER, DOMAIN_CLIENT);

2
arch/arm/kernel/vmlinux.lds.S
View File

@ -183,7 +183,9 @@ SECTIONS
}
#endif
#ifdef CONFIG_SMP
PERCPU_SECTION(L1_CACHE_BYTES)
#endif
#ifdef CONFIG_XIP_KERNEL
__data_loc = ALIGN(4); /* location in binary */

1
arch/arm/mach-dove/include/mach/bridge-regs.h
View File

@ -50,5 +50,6 @@
#define POWER_MANAGEMENT (BRIDGE_VIRT_BASE | 0x011c)
#define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300)
#define TIMER_PHYS_BASE (BRIDGE_PHYS_BASE | 0x0300)
#endif

1
arch/arm/mach-dove/include/mach/dove.h
View File

@ -78,6 +78,7 @@
/* North-South Bridge */
#define BRIDGE_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0x20000)
#define BRIDGE_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE | 0x20000)
/* Cryptographic Engine */
#define DOVE_CRYPT_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE | 0x30000)

13
arch/arm/mach-exynos/pm_domains.c
View File

@ -119,7 +119,9 @@ static __init void exynos_pm_add_dev_to_genpd(struct platform_device *pdev,
struct exynos_pm_domain *pd)
{
if (pdev->dev.bus) {
if (pm_genpd_add_device(&pd->pd, &pdev->dev))
if (!pm_genpd_add_device(&pd->pd, &pdev->dev))
pm_genpd_dev_need_restore(&pdev->dev, true);
else
pr_info("%s: error in adding %s device to %s power"
"domain\n", __func__, dev_name(&pdev->dev),
pd->name);
@ -151,9 +153,12 @@ static __init int exynos4_pm_init_power_domain(void)
if (of_have_populated_dt())
return exynos_pm_dt_parse_domains();
for (idx = 0; idx < ARRAY_SIZE(exynos4_pm_domains); idx++)
pm_genpd_init(&exynos4_pm_domains[idx]->pd, NULL,
exynos4_pm_domains[idx]->is_off);
for (idx = 0; idx < ARRAY_SIZE(exynos4_pm_domains); idx++) {
struct exynos_pm_domain *pd = exynos4_pm_domains[idx];
int on = __raw_readl(pd->base + 0x4) & S5P_INT_LOCAL_PWR_EN;
pm_genpd_init(&pd->pd, NULL, !on);
}
#ifdef CONFIG_S5P_DEV_FIMD0
exynos_pm_add_dev_to_genpd(&s5p_device_fimd0, &exynos4_pd_lcd0);

9
arch/arm/mach-imx/clk-imx35.c
View File

@ -201,7 +201,6 @@ int __init mx35_clocks_init()
pr_err("i.MX35 clk %d: register failed with %ld\n",
i, PTR_ERR(clk[i]));
clk_register_clkdev(clk[pata_gate], NULL, "pata_imx");
clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0");
clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1");
@ -264,6 +263,14 @@ int __init mx35_clocks_init()
clk_prepare_enable(clk[iim_gate]);
clk_prepare_enable(clk[emi_gate]);
/*
* SCC is needed to boot via mmc after a watchdog reset. The clock code
* before conversion to common clk also enabled UART1 (which isn't
* handled here and not needed for mmc) and IIM (which is enabled
* unconditionally above).
*/
clk_prepare_enable(clk[scc_gate]);
imx_print_silicon_rev("i.MX35", mx35_revision());
#ifdef CONFIG_MXC_USE_EPIT

2
arch/arm/mach-imx/mach-imx27_visstrim_m10.c
View File

@ -38,7 +38,7 @@
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/system.h>
#include <asm/system_info.h>
#include <mach/common.h>
#include <mach/iomux-mx27.h>

29
arch/arm/mach-mmp/include/mach/gpio-pxa.h
View File

@ -1,29 +0,0 @@
#ifndef __ASM_MACH_GPIO_PXA_H
#define __ASM_MACH_GPIO_PXA_H
#include <mach/addr-map.h>
#include <mach/cputype.h>
#include <mach/irqs.h>
#define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000)
#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
#define GPIO_REG(x) (*(volatile u32 *)(GPIO_REGS_VIRT + (x)))
#define gpio_to_bank(gpio) ((gpio) >> 5)
/* NOTE: these macros are defined here to make optimization of
* gpio_{get,set}_value() to work when 'gpio' is a constant.
* Usage of these macros otherwise is no longer recommended,
* use generic GPIO API whenever possible.
*/
#define GPIO_bit(gpio) (1 << ((gpio) & 0x1f))
#define GPLR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00)
#define GPDR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c)
#define GPSR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18)
#define GPCR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24)
#include <plat/gpio-pxa.h>
#endif /* __ASM_MACH_GPIO_PXA_H */

1
arch/arm/mach-mv78xx0/include/mach/bridge-regs.h
View File

@ -31,5 +31,6 @@
#define IRQ_MASK_HIGH_OFF 0x0014
#define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300)
#define TIMER_PHYS_BASE (BRIDGE_PHYS_BASE | 0x0300)
#endif

2
arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
View File

@ -42,6 +42,7 @@
#define MV78XX0_CORE0_REGS_PHYS_BASE 0xf1020000
#define MV78XX0_CORE1_REGS_PHYS_BASE 0xf1024000
#define MV78XX0_CORE_REGS_VIRT_BASE 0xfe400000
#define MV78XX0_CORE_REGS_PHYS_BASE 0xfe400000
#define MV78XX0_CORE_REGS_SIZE SZ_16K
#define MV78XX0_PCIE_IO_PHYS_BASE(i) (0xf0800000 + ((i) << 20))
@ -59,6 +60,7 @@
* Core-specific peripheral registers.
*/
#define BRIDGE_VIRT_BASE (MV78XX0_CORE_REGS_VIRT_BASE)
#define BRIDGE_PHYS_BASE (MV78XX0_CORE_REGS_PHYS_BASE)
/*
* Register Map

11
arch/arm/mach-mxs/mach-apx4devkit.c
View File

@ -205,6 +205,16 @@ static int apx4devkit_phy_fixup(struct phy_device *phy)
return 0;
}
static void __init apx4devkit_fec_phy_clk_enable(void)
{
struct clk *clk;
/* Enable fec phy clock */
clk = clk_get_sys("enet_out", NULL);
if (!IS_ERR(clk))
clk_prepare_enable(clk);
}
static void __init apx4devkit_init(void)
{
mx28_soc_init();
@ -225,6 +235,7 @@ static void __init apx4devkit_init(void)
phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
apx4devkit_phy_fixup);
apx4devkit_fec_phy_clk_enable();
mx28_add_fec(0, &mx28_fec_pdata);
mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata);

2
arch/arm/mach-omap2/board-overo.c
View File

@ -494,8 +494,8 @@ static void __init overo_init(void)
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap_hsmmc_init(mmc);
overo_i2c_init();
omap_hsmmc_init(mmc);
omap_display_init(&overo_dss_data);
omap_serial_init();
omap_sdrc_init(mt46h32m32lf6_sdrc_params,

4
arch/arm/mach-omap2/clockdomain.h
View File

@ -31,12 +31,16 @@
*
* CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this
* clockdomain. (Currently, this applies to OMAP3 clockdomains only.)
* CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is
* active whenever the MPU is active. True for interconnects and
* the WKUP clockdomains.
*/
#define CLKDM_CAN_FORCE_SLEEP (1 << 0)
#define CLKDM_CAN_FORCE_WAKEUP (1 << 1)
#define CLKDM_CAN_ENABLE_AUTO (1 << 2)
#define CLKDM_CAN_DISABLE_AUTO (1 << 3)
#define CLKDM_NO_AUTODEPS (1 << 4)
#define CLKDM_ACTIVE_WITH_MPU (1 << 5)
#define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO)
#define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP)

1
arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
View File

@ -88,4 +88,5 @@ struct clockdomain wkup_common_clkdm = {
.name = "wkup_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
.dep_bit = OMAP_EN_WKUP_SHIFT,
.flags = CLKDM_ACTIVE_WITH_MPU,
};

2
arch/arm/mach-omap2/clockdomains44xx_data.c
View File

@ -381,7 +381,7 @@ static struct clockdomain l4_wkup_44xx_clkdm = {
.cm_inst = OMAP4430_PRM_WKUP_CM_INST,
.clkdm_offs = OMAP4430_PRM_WKUP_CM_WKUP_CDOFFS,
.dep_bit = OMAP4430_L4WKUP_STATDEP_SHIFT,
.flags = CLKDM_CAN_HWSUP,
.flags = CLKDM_CAN_HWSUP | CLKDM_ACTIVE_WITH_MPU,
};
static struct clockdomain emu_sys_44xx_clkdm = {

32
arch/arm/mach-omap2/omap_hwmod.c
View File

@ -1124,15 +1124,18 @@ static struct omap_hwmod_addr_space * __init _find_mpu_rt_addr_space(struct omap
* _enable_sysc - try to bring a module out of idle via OCP_SYSCONFIG
* @oh: struct omap_hwmod *
*
* If module is marked as SWSUP_SIDLE, force the module out of slave
* idle; otherwise, configure it for smart-idle. If module is marked
* as SWSUP_MSUSPEND, force the module out of master standby;
* otherwise, configure it for smart-standby. No return value.
* Ensure that the OCP_SYSCONFIG register for the IP block represented
* by @oh is set to indicate to the PRCM that the IP block is active.
* Usually this means placing the module into smart-idle mode and
* smart-standby, but if there is a bug in the automatic idle handling
* for the IP block, it may need to be placed into the force-idle or
* no-idle variants of these modes. No return value.
*/
static void _enable_sysc(struct omap_hwmod *oh)
{
u8 idlemode, sf;
u32 v;
bool clkdm_act;
if (!oh->class->sysc)
return;
@ -1141,8 +1144,16 @@ static void _enable_sysc(struct omap_hwmod *oh)
sf = oh->class->sysc->sysc_flags;
if (sf & SYSC_HAS_SIDLEMODE) {
idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
clkdm_act = ((oh->clkdm &&
oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) ||
(oh->_clk && oh->_clk->clkdm &&
oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU));
if (clkdm_act && !(oh->class->sysc->idlemodes &
(SIDLE_SMART | SIDLE_SMART_WKUP)))
idlemode = HWMOD_IDLEMODE_FORCE;
else
idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}
@ -1208,8 +1219,13 @@ static void _idle_sysc(struct omap_hwmod *oh)
sf = oh->class->sysc->sysc_flags;
if (sf & SYSC_HAS_SIDLEMODE) {
idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
/* XXX What about HWMOD_IDLEMODE_SMART_WKUP? */
if (oh->flags & HWMOD_SWSUP_SIDLE ||
!(oh->class->sysc->idlemodes &
(SIDLE_SMART | SIDLE_SMART_WKUP)))
idlemode = HWMOD_IDLEMODE_FORCE;
else
idlemode = HWMOD_IDLEMODE_SMART;
_set_slave_idlemode(oh, idlemode, &v);
}

28
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
View File

@ -1928,7 +1928,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp1_sdma_reqs[] = {
static struct omap_hwmod_opt_clk mcbsp1_opt_clks[] = {
{ .role = "pad_fck", .clk = "pad_clks_ck" },
{ .role = "prcm_clk", .clk = "mcbsp1_sync_mux_ck" },
{ .role = "prcm_fck", .clk = "mcbsp1_sync_mux_ck" },
};
static struct omap_hwmod omap44xx_mcbsp1_hwmod = {
@ -1963,7 +1963,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp2_sdma_reqs[] = {
static struct omap_hwmod_opt_clk mcbsp2_opt_clks[] = {
{ .role = "pad_fck", .clk = "pad_clks_ck" },
{ .role = "prcm_clk", .clk = "mcbsp2_sync_mux_ck" },
{ .role = "prcm_fck", .clk = "mcbsp2_sync_mux_ck" },
};
static struct omap_hwmod omap44xx_mcbsp2_hwmod = {
@ -1998,7 +1998,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp3_sdma_reqs[] = {
static struct omap_hwmod_opt_clk mcbsp3_opt_clks[] = {
{ .role = "pad_fck", .clk = "pad_clks_ck" },
{ .role = "prcm_clk", .clk = "mcbsp3_sync_mux_ck" },
{ .role = "prcm_fck", .clk = "mcbsp3_sync_mux_ck" },
};
static struct omap_hwmod omap44xx_mcbsp3_hwmod = {
@ -2033,7 +2033,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp4_sdma_reqs[] = {
static struct omap_hwmod_opt_clk mcbsp4_opt_clks[] = {
{ .role = "pad_fck", .clk = "pad_clks_ck" },
{ .role = "prcm_clk", .clk = "mcbsp4_sync_mux_ck" },
{ .role = "prcm_fck", .clk = "mcbsp4_sync_mux_ck" },
};
static struct omap_hwmod omap44xx_mcbsp4_hwmod = {
@ -3864,7 +3864,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_2 = {
};
/* usb_host_fs -> l3_main_2 */
static struct omap_hwmod_ocp_if omap44xx_usb_host_fs__l3_main_2 = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_usb_host_fs__l3_main_2 = {
.master = &omap44xx_usb_host_fs_hwmod,
.slave = &omap44xx_l3_main_2_hwmod,
.clk = "l3_div_ck",
@ -3922,7 +3922,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_3 = {
};
/* aess -> l4_abe */
static struct omap_hwmod_ocp_if omap44xx_aess__l4_abe = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_aess__l4_abe = {
.master = &omap44xx_aess_hwmod,
.slave = &omap44xx_l4_abe_hwmod,
.clk = "ocp_abe_iclk",
@ -4013,7 +4013,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_addrs[] = {
};
/* l4_abe -> aess */
static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess = {
.master = &omap44xx_l4_abe_hwmod,
.slave = &omap44xx_aess_hwmod,
.clk = "ocp_abe_iclk",
@ -4031,7 +4031,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_dma_addrs[] = {
};
/* l4_abe -> aess (dma) */
static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess_dma = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess_dma = {
.master = &omap44xx_l4_abe_hwmod,
.slave = &omap44xx_aess_hwmod,
.clk = "ocp_abe_iclk",
@ -5857,7 +5857,7 @@ static struct omap_hwmod_addr_space omap44xx_usb_host_fs_addrs[] = {
};
/* l4_cfg -> usb_host_fs */
static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_host_fs = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_cfg__usb_host_fs = {
.master = &omap44xx_l4_cfg_hwmod,
.slave = &omap44xx_usb_host_fs_hwmod,
.clk = "l4_div_ck",
@ -6014,13 +6014,13 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_iva__l3_main_2,
&omap44xx_l3_main_1__l3_main_2,
&omap44xx_l4_cfg__l3_main_2,
&omap44xx_usb_host_fs__l3_main_2,
/* &omap44xx_usb_host_fs__l3_main_2, */
&omap44xx_usb_host_hs__l3_main_2,
&omap44xx_usb_otg_hs__l3_main_2,
&omap44xx_l3_main_1__l3_main_3,
&omap44xx_l3_main_2__l3_main_3,
&omap44xx_l4_cfg__l3_main_3,
&omap44xx_aess__l4_abe,
/* &omap44xx_aess__l4_abe, */
&omap44xx_dsp__l4_abe,
&omap44xx_l3_main_1__l4_abe,
&omap44xx_mpu__l4_abe,
@ -6029,8 +6029,8 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_l4_cfg__l4_wkup,
&omap44xx_mpu__mpu_private,
&omap44xx_l4_cfg__ocp_wp_noc,
&omap44xx_l4_abe__aess,
&omap44xx_l4_abe__aess_dma,
/* &omap44xx_l4_abe__aess, */
/* &omap44xx_l4_abe__aess_dma, */
&omap44xx_l3_main_2__c2c,
&omap44xx_l4_wkup__counter_32k,
&omap44xx_l4_cfg__ctrl_module_core,
@ -6136,7 +6136,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_l4_per__uart2,
&omap44xx_l4_per__uart3,
&omap44xx_l4_per__uart4,
&omap44xx_l4_cfg__usb_host_fs,
/* &omap44xx_l4_cfg__usb_host_fs, */
&omap44xx_l4_cfg__usb_host_hs,
&omap44xx_l4_cfg__usb_otg_hs,
&omap44xx_l4_cfg__usb_tll_hs,

2
arch/arm/mach-omap2/twl-common.c
View File

@ -32,6 +32,7 @@
#include "twl-common.h"
#include "pm.h"
#include "voltage.h"
#include "mux.h"
static struct i2c_board_info __initdata pmic_i2c_board_info = {
.addr = 0x48,
@ -77,6 +78,7 @@ void __init omap4_pmic_init(const char *pmic_type,
struct twl6040_platform_data *twl6040_data, int twl6040_irq)
{
/* PMIC part*/
omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
strncpy(omap4_i2c1_board_info[0].type, pmic_type,
sizeof(omap4_i2c1_board_info[0].type));
omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N;

15
arch/arm/mach-pxa/hx4700.c
View File

@ -127,7 +127,11 @@ static unsigned long hx4700_pin_config[] __initdata = {
GPIO19_SSP2_SCLK,
GPIO86_SSP2_RXD,
GPIO87_SSP2_TXD,
GPIO88_GPIO,
GPIO88_GPIO | MFP_LPM_DRIVE_HIGH, /* TSC2046_CS */
/* BQ24022 Regulator */
GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT, /* BQ24022_nCHARGE_EN */
GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT, /* BQ24022_ISET2 */
/* HX4700 specific input GPIOs */
GPIO12_GPIO | WAKEUP_ON_EDGE_RISE, /* ASIC3_IRQ */
@ -135,6 +139,10 @@ static unsigned long hx4700_pin_config[] __initdata = {
GPIO14_GPIO, /* nWLAN_IRQ */
/* HX4700 specific output GPIOs */
GPIO61_GPIO | MFP_LPM_DRIVE_HIGH, /* W3220_nRESET */
GPIO71_GPIO | MFP_LPM_DRIVE_HIGH, /* ASIC3_nRESET */
GPIO81_GPIO | MFP_LPM_DRIVE_HIGH, /* CPU_GP_nRESET */
GPIO116_GPIO | MFP_LPM_DRIVE_HIGH, /* CPU_HW_nRESET */
GPIO102_GPIO | MFP_LPM_DRIVE_LOW, /* SYNAPTICS_POWER_ON */
GPIO10_GPIO, /* GSM_IRQ */
@ -872,14 +880,19 @@ static struct gpio global_gpios[] = {
{ GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
{ GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
{ GPIO32_HX4700_RS232_ON, GPIOF_OUT_INIT_HIGH, "RS232_ON" },
{ GPIO61_HX4700_W3220_nRESET, GPIOF_OUT_INIT_HIGH, "W3220_nRESET" },
{ GPIO71_HX4700_ASIC3_nRESET, GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
{ GPIO81_HX4700_CPU_GP_nRESET, GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" },
{ GPIO82_HX4700_EUART_RESET, GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
{ GPIO116_HX4700_CPU_HW_nRESET, GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" },
};
static void __init hx4700_init(void)
{
int ret;
PCFR = PCFR_GPR_EN | PCFR_OPDE;
pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));

2
arch/arm/mach-s3c24xx/clock-s3c2440.c
View File

@ -106,7 +106,7 @@ static struct clk s3c2440_clk_cam_upll = {
static struct clk s3c2440_clk_ac97 = {
.name = "ac97",
.enable = s3c2410_clkcon_enable,
.ctrlbit = S3C2440_CLKCON_CAMERA,
.ctrlbit = S3C2440_CLKCON_AC97,
};
static unsigned long s3c2440_fclk_n_getrate(struct clk *clk)

5
arch/arm/mach-shmobile/platsmp.c
View File

@ -22,8 +22,13 @@
#include <mach/common.h>
#include <mach/emev2.h>
#ifdef CONFIG_ARCH_SH73A0
#define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \
of_machine_is_compatible("renesas,sh73a0"))
#else
#define is_sh73a0() (0)
#endif
#define is_r8a7779() machine_is_marzen()
#ifdef CONFIG_ARCH_EMEV2

12
arch/arm/mach-ux500/board-mop500.c
View File

@ -625,11 +625,6 @@ static struct platform_device *snowball_platform_devs[] __initdata = {
&ab8500_device,
};
static struct platform_device *snowball_of_platform_devs[] __initdata = {
&snowball_led_dev,
&snowball_key_dev,
};
static void __init mop500_init_machine(void)
{
struct device *parent = NULL;
@ -769,6 +764,11 @@ MACHINE_END
#ifdef CONFIG_MACH_UX500_DT
static struct platform_device *snowball_of_platform_devs[] __initdata = {
&snowball_led_dev,
&snowball_key_dev,
};
struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
/* Requires DMA and call-back bindings. */
OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat),
@ -786,6 +786,8 @@ struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL),
OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL),
/* Requires device name bindings. */
OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL),
{},
};

2
arch/arm/mach-ux500/timer.c
View File

@ -63,8 +63,10 @@ static void __init ux500_timer_init(void)
/* TODO: Once MTU has been DT:ed place code above into else. */
if (of_have_populated_dt()) {
#ifdef CONFIG_OF
np = of_find_matching_node(NULL, prcmu_timer_of_match);
if (!np)
#endif
goto dt_fail;
tmp_base = of_iomap(np, 0);

1
arch/arm/mach-versatile/pci.c
View File

@ -339,7 +339,6 @@ void __init pci_versatile_preinit(void)
static int __init versatile_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int irq;
int devslot = PCI_SLOT(dev->devfn);
/* slot, pin, irq
* 24 1 27

2
arch/arm/mm/mm.h
View File

@ -64,7 +64,7 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
#ifdef CONFIG_ZONE_DMA
extern phys_addr_t arm_dma_limit;
#else
#define arm_dma_limit ((u32)~0)
#define arm_dma_limit ((phys_addr_t)~0)
#endif
extern phys_addr_t arm_lowmem_limit;

74
arch/arm/mm/mmu.c
View File

@ -791,6 +791,79 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
}
}
#ifndef CONFIG_ARM_LPAE
/*
* The Linux PMD is made of two consecutive section entries covering 2MB
* (see definition in include/asm/pgtable-2level.h). However a call to
* create_mapping() may optimize static mappings by using individual
* 1MB section mappings. This leaves the actual PMD potentially half
* initialized if the top or bottom section entry isn't used, leaving it
* open to problems if a subsequent ioremap() or vmalloc() tries to use
* the virtual space left free by that unused section entry.
*
* Let's avoid the issue by inserting dummy vm entries covering the unused
* PMD halves once the static mappings are in place.
*/
static void __init pmd_empty_section_gap(unsigned long addr)
{
struct vm_struct *vm;
vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm));
vm->addr = (void *)addr;
vm->size = SECTION_SIZE;
vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING;
vm->caller = pmd_empty_section_gap;
vm_area_add_early(vm);
}
static void __init fill_pmd_gaps(void)
{
struct vm_struct *vm;
unsigned long addr, next = 0;
pmd_t *pmd;
/* we're still single threaded hence no lock needed here */
for (vm = vmlist; vm; vm = vm->next) {
if (!(vm->flags & VM_ARM_STATIC_MAPPING))
continue;
addr = (unsigned long)vm->addr;
if (addr < next)
continue;
/*
* Check if this vm starts on an odd section boundary.
* If so and the first section entry for this PMD is free
* then we block the corresponding virtual address.
*/
if ((addr & ~PMD_MASK) == SECTION_SIZE) {
pmd = pmd_off_k(addr);
if (pmd_none(*pmd))
pmd_empty_section_gap(addr & PMD_MASK);
}
/*
* Then check if this vm ends on an odd section boundary.
* If so and the second section entry for this PMD is empty
* then we block the corresponding virtual address.
*/
addr += vm->size;
if ((addr & ~PMD_MASK) == SECTION_SIZE) {
pmd = pmd_off_k(addr) + 1;
if (pmd_none(*pmd))
pmd_empty_section_gap(addr);
}
/* no need to look at any vm entry until we hit the next PMD */
next = (addr + PMD_SIZE - 1) & PMD_MASK;
}
}
#else
#define fill_pmd_gaps() do { } while (0)
#endif
static void * __initdata vmalloc_min =
(void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET);
@ -1072,6 +1145,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
*/
if (mdesc->map_io)
mdesc->map_io();
fill_pmd_gaps();
/*
* Finally flush the caches and tlb to ensure that we're in a

8
arch/arm/plat-samsung/adc.c
View File

@ -157,11 +157,13 @@ int s3c_adc_start(struct s3c_adc_client *client,
return -EINVAL;
}
if (client->is_ts && adc->ts_pend)
return -EAGAIN;
spin_lock_irqsave(&adc->lock, flags);
if (client->is_ts && adc->ts_pend) {
spin_unlock_irqrestore(&adc->lock, flags);
return -EAGAIN;
}
client->channel = channel;
client->nr_samples = nr_samples;

3
arch/arm/plat-samsung/devs.c
View File

@ -126,7 +126,8 @@ struct platform_device s3c_device_adc = {
#ifdef CONFIG_CPU_S3C2440
static struct resource s3c_camif_resource[] = {
[0] = DEFINE_RES_MEM(S3C2440_PA_CAMIF, S3C2440_SZ_CAMIF),
[1] = DEFINE_RES_IRQ(IRQ_CAM),
[1] = DEFINE_RES_IRQ(IRQ_S3C2440_CAM_C),
[2] = DEFINE_RES_IRQ(IRQ_S3C2440_CAM_P),
};
struct platform_device s3c_device_camif = {

1
arch/arm/plat-samsung/s5p-clock.c
View File

@ -37,6 +37,7 @@ struct clk clk_ext_xtal_mux = {
struct clk clk_xusbxti = {
.name = "xusbxti",
.id = -1,
.rate = 24000000,
};
struct clk s5p_clk_27m = {

3
arch/h8300/include/asm/pgtable.h
View File

@ -70,4 +70,7 @@ extern int is_in_rom(unsigned long);
#define VMALLOC_END 0xffffffff
#define arch_enter_lazy_cpu_mode() do {} while (0)
#include <asm-generic/pgtable.h>
#endif /* _H8300_PGTABLE_H */

3
arch/h8300/include/asm/uaccess.h
View File

@ -100,7 +100,6 @@ extern int __put_user_bad(void);
break; \
default: \
__gu_err = __get_user_bad(); \
__gu_val = 0; \
break; \
} \
(x) = __gu_val; \
@ -159,4 +158,6 @@ clear_user(void *to, unsigned long n)
return 0;
}
#define __clear_user clear_user
#endif /* _H8300_UACCESS_H */

2
arch/h8300/kernel/signal.c
View File

@ -447,7 +447,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
* want to handle. Thus you cannot kill init even with a SIGKILL even by
* mistake.
*/
statis void do_signal(struct pt_regs *regs)
static void do_signal(struct pt_regs *regs)
{
siginfo_t info;
int signr;

1
arch/h8300/kernel/time.c
View File

@ -27,6 +27,7 @@
#include <linux/profile.h>
#include <asm/io.h>
#include <asm/irq_regs.h>
#include <asm/timer.h>
#define TICK_SIZE (tick_nsec / 1000)

4
arch/mips/pci/pci-lantiq.c
View File

@ -129,7 +129,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev)
/* setup reset gpio used by pci */
reset_gpio = of_get_named_gpio(node, "gpio-reset", 0);
if (reset_gpio > 0)
if (gpio_is_valid(reset_gpio))
devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset");
/* enable auto-switching between PCI and EBU */
@ -192,7 +192,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev)
ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN);
/* toggle reset pin */
if (reset_gpio > 0) {
if (gpio_is_valid(reset_gpio)) {
__gpio_set_value(reset_gpio, 0);
wmb();
mdelay(1);

3
arch/mn10300/include/asm/ptrace.h
View File

@ -81,9 +81,6 @@ struct pt_regs {
#define PTRACE_GETFPREGS 14
#define PTRACE_SETFPREGS 15
/* options set using PTRACE_SETOPTIONS */
#define PTRACE_O_TRACESYSGOOD 0x00000001
#ifdef __KERNEL__
#define user_mode(regs) (((regs)->epsw & EPSW_nSL) == EPSW_nSL)

2
arch/mn10300/include/asm/thread_info.h
View File

@ -123,7 +123,7 @@ static inline unsigned long current_stack_pointer(void)
}
#ifndef CONFIG_KGDB
void arch_release_thread_info(struct thread_info *ti)
void arch_release_thread_info(struct thread_info *ti);
#endif
#define get_thread_info(ti) get_task_struct((ti)->task)
#define put_thread_info(ti) put_task_struct((ti)->task)

11
arch/mn10300/include/asm/timex.h
View File

@ -11,7 +11,6 @@
#ifndef _ASM_TIMEX_H
#define _ASM_TIMEX_H
#include <asm/hardirq.h>
#include <unit/timex.h>
#define TICK_SIZE (tick_nsec / 1000)
@ -30,16 +29,6 @@ static inline cycles_t get_cycles(void)
extern int init_clockevents(void);
extern int init_clocksource(void);
static inline void setup_jiffies_interrupt(int irq,
struct irqaction *action)
{
u16 tmp;
setup_irq(irq, action);
set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
tmp = GxICR(irq);
}
#endif /* __KERNEL__ */
#endif /* _ASM_TIMEX_H */

10
arch/mn10300/kernel/cevt-mn10300.c
View File

@ -70,6 +70,16 @@ static void event_handler(struct clock_event_device *dev)
{
}
static inline void setup_jiffies_interrupt(int irq,
struct irqaction *action)
{
u16 tmp;
setup_irq(irq, action);
set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
tmp = GxICR(irq);
}
int __init init_clockevents(void)
{
struct clock_event_device *cd;

2
arch/mn10300/kernel/internal.h
View File

@ -9,6 +9,8 @@
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/irqreturn.h>
struct clocksource;
struct clock_event_device;

4
arch/mn10300/kernel/irq.c
View File

@ -170,9 +170,9 @@ mn10300_cpupic_setaffinity(struct irq_data *d, const struct cpumask *mask,
case SC1TXIRQ:
#ifdef CONFIG_MN10300_TTYSM1_TIMER12
case TM12IRQ:
#elif CONFIG_MN10300_TTYSM1_TIMER9
#elif defined(CONFIG_MN10300_TTYSM1_TIMER9)
case TM9IRQ:
#elif CONFIG_MN10300_TTYSM1_TIMER3
#elif defined(CONFIG_MN10300_TTYSM1_TIMER3)
case TM3IRQ:
#endif /* CONFIG_MN10300_TTYSM1_TIMER12 */
#endif /* CONFIG_MN10300_TTYSM1 */

1
arch/mn10300/kernel/traps.c
View File

@ -26,6 +26,7 @@
#include <linux/kdebug.h>
#include <linux/bug.h>
#include <linux/irq.h>
#include <linux/export.h>
#include <asm/processor.h>
#include <linux/uaccess.h>
#include <asm/io.h>

1
arch/mn10300/mm/dma-alloc.c
View File

@ -15,6 +15,7 @@
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/gfp.h>
#include <linux/export.h>
#include <asm/io.h>
static unsigned long pci_sram_allocated = 0xbc000000;

4
arch/mn10300/unit-asb2303/include/unit/timex.h
View File

@ -11,10 +11,6 @@
#ifndef _ASM_UNIT_TIMEX_H
#define _ASM_UNIT_TIMEX_H
#ifndef __ASSEMBLY__
#include <linux/irq.h>
#endif /* __ASSEMBLY__ */
#include <asm/timer-regs.h>
#include <unit/clock.h>
#include <asm/param.h>

1
arch/mn10300/unit-asb2303/smc91111.c
View File

@ -15,6 +15,7 @@
#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/timex.h>
#include <asm/processor.h>
#include <asm/intctl-regs.h>

4
arch/mn10300/unit-asb2305/include/unit/timex.h
View File

@ -11,10 +11,6 @@
#ifndef _ASM_UNIT_TIMEX_H
#define _ASM_UNIT_TIMEX_H
#ifndef __ASSEMBLY__
#include <linux/irq.h>
#endif /* __ASSEMBLY__ */
#include <asm/timer-regs.h>
#include <unit/clock.h>
#include <asm/param.h>

1
arch/mn10300/unit-asb2305/unit-init.c
View File

@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/processor.h>
#include <asm/intctl-regs.h>

4
arch/mn10300/unit-asb2364/include/unit/timex.h
View File

@ -11,10 +11,6 @@
#ifndef _ASM_UNIT_TIMEX_H
#define _ASM_UNIT_TIMEX_H
#ifndef __ASSEMBLY__
#include <linux/irq.h>
#endif /* __ASSEMBLY__ */
#include <asm/timer-regs.h>
#include <unit/clock.h>
#include <asm/param.h>

6
arch/powerpc/include/asm/hw_irq.h
View File

@ -86,8 +86,8 @@ static inline bool arch_irqs_disabled(void)
}
#ifdef CONFIG_PPC_BOOK3E
#define __hard_irq_enable() asm volatile("wrteei 1" : : : "memory");
#define __hard_irq_disable() asm volatile("wrteei 0" : : : "memory");
#define __hard_irq_enable() asm volatile("wrteei 1" : : : "memory")
#define __hard_irq_disable() asm volatile("wrteei 0" : : : "memory")
#else
#define __hard_irq_enable() __mtmsrd(local_paca->kernel_msr | MSR_EE, 1)
#define __hard_irq_disable() __mtmsrd(local_paca->kernel_msr, 1)
@ -125,6 +125,8 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs)
return !regs->softe;
}
extern bool prep_irq_for_idle(void);
#else /* CONFIG_PPC64 */
#define SET_MSR_EE(x) mtmsr(x)

48
arch/powerpc/kernel/irq.c
View File

@ -229,7 +229,7 @@ notrace void arch_local_irq_restore(unsigned long en)
*/
if (unlikely(irq_happened != PACA_IRQ_HARD_DIS))
__hard_irq_disable();
#ifdef CONFIG_TRACE_IRQFLAG
#ifdef CONFIG_TRACE_IRQFLAGS
else {
/*
* We should already be hard disabled here. We had bugs
@ -286,6 +286,52 @@ void notrace restore_interrupts(void)
__hard_irq_enable();
}
/*
* This is a helper to use when about to go into idle low-power
* when the latter has the side effect of re-enabling interrupts
* (such as calling H_CEDE under pHyp).
*
* You call this function with interrupts soft-disabled (this is
* already the case when ppc_md.power_save is called). The function
* will return whether to enter power save or just return.
*
* In the former case, it will have notified lockdep of interrupts
* being re-enabled and generally sanitized the lazy irq state,
* and in the latter case it will leave with interrupts hard
* disabled and marked as such, so the local_irq_enable() call
* in cpu_idle() will properly re-enable everything.
*/
bool prep_irq_for_idle(void)
{
/*
* First we need to hard disable to ensure no interrupt
* occurs before we effectively enter the low power state
*/
hard_irq_disable();
/*
* If anything happened while we were soft-disabled,
* we return now and do not enter the low power state.
*/
if (lazy_irq_pending())
return false;
/* Tell lockdep we are about to re-enable */
trace_hardirqs_on();
/*
* Mark interrupts as soft-enabled and clear the
* PACA_IRQ_HARD_DIS from the pending mask since we
* are about to hard enable as well as a side effect
* of entering the low power state.
*/
local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
local_paca->soft_enabled = 1;
/* Tell the caller to enter the low power state */
return true;
}
#endif /* CONFIG_PPC64 */
int arch_show_interrupts(struct seq_file *p, int prec)

2
arch/powerpc/kvm/book3s_hv_rmhandlers.S
View File

@ -810,7 +810,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
lwz r3,VCORE_NAPPING_THREADS(r5)
lwz r4,VCPU_PTID(r9)
li r0,1
sldi r0,r0,r4
sld r0,r0,r4
andc. r3,r3,r0 /* no sense IPI'ing ourselves */
beq 43f
mulli r4,r4,PACA_SIZE /* get paca for thread 0 */

1
arch/powerpc/kvm/book3s_pr_papr.c
View File

@ -241,6 +241,7 @@ int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd)
case H_PUT_TCE:
return kvmppc_h_pr_put_tce(vcpu);
case H_CEDE:
vcpu->arch.shared->msr |= MSR_EE;
kvm_vcpu_block(vcpu);
clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
vcpu->stat.halt_wakeup++;

2
arch/powerpc/mm/numa.c
View File

@ -639,7 +639,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
unsigned int n, rc, ranges, is_kexec_kdump = 0;
unsigned long lmb_size, base, size, sz;
int nid;
struct assoc_arrays aa;
struct assoc_arrays aa = { .arrays = NULL };
n = of_get_drconf_memory(memory, &dm);
if (!n)

11
arch/powerpc/platforms/cell/pervasive.c
View File

@ -42,11 +42,9 @@ static void cbe_power_save(void)
{
unsigned long ctrl, thread_switch_control;
/*
* We need to hard disable interrupts, the local_irq_enable() done by
* our caller upon return will hard re-enable.
*/
hard_irq_disable();
/* Ensure our interrupt state is properly tracked */
if (!prep_irq_for_idle())
return;
ctrl = mfspr(SPRN_CTRLF);
@ -81,6 +79,9 @@ static void cbe_power_save(void)
*/
ctrl &= ~(CTRL_RUNLATCH | CTRL_TE);
mtspr(SPRN_CTRLT, ctrl);
/* Re-enable interrupts in MSR */
__hard_irq_enable();
}
static int cbe_system_reset_exception(struct pt_regs *regs)

17
arch/powerpc/platforms/pseries/processor_idle.c
View File

@ -99,15 +99,18 @@ static int snooze_loop(struct cpuidle_device *dev,
static void check_and_cede_processor(void)
{
/*
* Interrupts are soft-disabled at this point,
* but not hard disabled. So an interrupt might have
* occurred before entering NAP, and would be potentially
* lost (edge events, decrementer events, etc...) unless
* we first hard disable then check.
* Ensure our interrupt state is properly tracked,
* also checks if no interrupt has occurred while we
* were soft-disabled
*/
hard_irq_disable();
if (!lazy_irq_pending())
if (prep_irq_for_idle()) {
cede_processor();
#ifdef CONFIG_TRACE_IRQFLAGS
/* Ensure that H_CEDE returns with IRQs on */
if (WARN_ON(!(mfmsr() & MSR_EE)))
__hard_irq_enable();
#endif
}
}
static int dedicated_cede_loop(struct cpuidle_device *dev,

2
arch/powerpc/xmon/xmon.c
View File

@ -971,7 +971,7 @@ static int cpu_cmd(void)
/* print cpus waiting or in xmon */
printf("cpus stopped:");
count = 0;
for (cpu = 0; cpu < NR_CPUS; ++cpu) {
for_each_possible_cpu(cpu) {
if (cpumask_test_cpu(cpu, &cpus_in_xmon)) {
if (count == 0)
printf(" %x", cpu);

17
arch/sh/include/asm/io_noioport.h
View File

@ -19,9 +19,20 @@ static inline u32 inl(unsigned long addr)
return -1;
}
#define outb(x, y) BUG()
#define outw(x, y) BUG()
#define outl(x, y) BUG()
static inline void outb(unsigned char x, unsigned long port)
{
BUG();
}
static inline void outw(unsigned short x, unsigned long port)
{
BUG();
}
static inline void outl(unsigned int x, unsigned long port)
{
BUG();
}
#define inb_p(addr) inb(addr)
#define inw_p(addr) inw(addr)

2
arch/sh/kernel/cpu/sh3/serial-sh7720.c
View File

@ -2,7 +2,7 @@
#include <linux/serial_core.h>
#include <linux/io.h>
#include <cpu/serial.h>
#include <asm/gpio.h>
#include <cpu/gpio.h>
static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag)
{

9
arch/tile/kernel/backtrace.c
View File

@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <asm/byteorder.h>
#include <asm/backtrace.h>
#include <asm/tile-desc.h>
#include <arch/abi.h>
@ -336,8 +337,12 @@ static void find_caller_pc_and_caller_sp(CallerLocation *location,
bytes_to_prefetch / sizeof(tile_bundle_bits);
}
/* Decode the next bundle. */
bundle.bits = prefetched_bundles[next_bundle++];
/*
* Decode the next bundle.
* TILE always stores instruction bundles in little-endian
* mode, even when the chip is running in big-endian mode.
*/
bundle.bits = le64_to_cpu(prefetched_bundles[next_bundle++]);
bundle.num_insns =
parse_insn_tile(bundle.bits, pc, bundle.insns);
num_info_ops = bt_get_info_ops(&bundle, info_operands);

1
arch/um/drivers/mconsole_kern.c
View File

@ -705,7 +705,6 @@ static void stack_proc(void *arg)
struct task_struct *from = current, *to = arg;
to->thread.saved_task = from;
rcu_switch_from(from);
switch_to(from, to, from);
}

39
arch/x86/kernel/vsyscall_64.c
View File

@ -139,6 +139,19 @@ static int addr_to_vsyscall_nr(unsigned long addr)
return nr;
}
#ifdef CONFIG_SECCOMP
static int vsyscall_seccomp(struct task_struct *tsk, int syscall_nr)
{
if (!seccomp_mode(&tsk->seccomp))
return 0;
task_pt_regs(tsk)->orig_ax = syscall_nr;
task_pt_regs(tsk)->ax = syscall_nr;
return __secure_computing(syscall_nr);
}
#else
#define vsyscall_seccomp(_tsk, _nr) 0
#endif
static bool write_ok_or_segv(unsigned long ptr, size_t size)
{
/*
@ -174,6 +187,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
int vsyscall_nr;
int prev_sig_on_uaccess_error;
long ret;
int skip;
/*
* No point in checking CS -- the only way to get here is a user mode
@ -205,9 +219,6 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
}
tsk = current;
if (seccomp_mode(&tsk->seccomp))
do_exit(SIGKILL);
/*
* With a real vsyscall, page faults cause SIGSEGV. We want to
* preserve that behavior to make writing exploits harder.
@ -222,8 +233,13 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
* address 0".
*/
ret = -EFAULT;
skip = 0;
switch (vsyscall_nr) {
case 0:
skip = vsyscall_seccomp(tsk, __NR_gettimeofday);
if (skip)
break;
if (!write_ok_or_segv(regs->di, sizeof(struct timeval)) ||
!write_ok_or_segv(regs->si, sizeof(struct timezone)))
break;
@ -234,6 +250,10 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
break;
case 1:
skip = vsyscall_seccomp(tsk, __NR_time);
if (skip)
break;
if (!write_ok_or_segv(regs->di, sizeof(time_t)))
break;
@ -241,6 +261,10 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
break;
case 2:
skip = vsyscall_seccomp(tsk, __NR_getcpu);
if (skip)
break;
if (!write_ok_or_segv(regs->di, sizeof(unsigned)) ||
!write_ok_or_segv(regs->si, sizeof(unsigned)))
break;
@ -253,6 +277,12 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
current_thread_info()->sig_on_uaccess_error = prev_sig_on_uaccess_error;
if (skip) {
if ((long)regs->ax <= 0L) /* seccomp errno emulation */
goto do_ret;
goto done; /* seccomp trace/trap */
}
if (ret == -EFAULT) {
/* Bad news -- userspace fed a bad pointer to a vsyscall. */
warn_bad_vsyscall(KERN_INFO, regs,
@ -271,10 +301,11 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
regs->ax = ret;
do_ret:
/* Emulate a ret instruction. */
regs->ip = caller;
regs->sp += 8;
done:
return true;
sigsegv:

3
arch/x86/kvm/mmu.c
View File

@ -3934,6 +3934,9 @@ static void kvm_mmu_remove_some_alloc_mmu_pages(struct kvm *kvm,
{
struct kvm_mmu_page *page;
if (list_empty(&kvm->arch.active_mmu_pages))
return;
page = container_of(kvm->arch.active_mmu_pages.prev,
struct kvm_mmu_page, link);
kvm_mmu_prepare_zap_page(kvm, page, invalid_list);

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

@ -277,7 +277,7 @@ void xtensa_elf_core_copy_regs (xtensa_gregset_t *elfregs, struct pt_regs *regs)
/* Don't leak any random bits. */
memset(elfregs, 0, sizeof (elfregs));
memset(elfregs, 0, sizeof(*elfregs));
/* Note: PS.EXCM is not set while user task is running; its
* being set in regs->ps is for exception handling convenience.

9
block/blk-cgroup.c
View File

@ -125,12 +125,8 @@ static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q)
blkg->pd[i] = pd;
pd->blkg = blkg;
}
/* invoke per-policy init */
for (i = 0; i < BLKCG_MAX_POLS; i++) {
struct blkcg_policy *pol = blkcg_policy[i];
/* invoke per-policy init */
if (blkcg_policy_enabled(blkg->q, pol))
pol->pd_init_fn(blkg);
}
@ -245,10 +241,9 @@ EXPORT_SYMBOL_GPL(blkg_lookup_create);
static void blkg_destroy(struct blkcg_gq *blkg)
{
struct request_queue *q = blkg->q;
struct blkcg *blkcg = blkg->blkcg;
lockdep_assert_held(q->queue_lock);
lockdep_assert_held(blkg->q->queue_lock);
lockdep_assert_held(&blkcg->lock);
/* Something wrong if we are trying to remove same group twice */

25
block/blk-core.c
View File

@ -361,9 +361,10 @@ EXPORT_SYMBOL(blk_put_queue);
*/
void blk_drain_queue(struct request_queue *q, bool drain_all)
{
int i;
while (true) {
bool drain = false;
int i;
spin_lock_irq(q->queue_lock);
@ -408,6 +409,18 @@ void blk_drain_queue(struct request_queue *q, bool drain_all)
break;
msleep(10);
}
/*
* With queue marked dead, any woken up waiter will fail the
* allocation path, so the wakeup chaining is lost and we're
* left with hung waiters. We need to wake up those waiters.
*/
if (q->request_fn) {
spin_lock_irq(q->queue_lock);
for (i = 0; i < ARRAY_SIZE(q->rq.wait); i++)
wake_up_all(&q->rq.wait[i]);
spin_unlock_irq(q->queue_lock);
}
}
/**
@ -467,7 +480,6 @@ void blk_cleanup_queue(struct request_queue *q)
/* mark @q DEAD, no new request or merges will be allowed afterwards */
mutex_lock(&q->sysfs_lock);
queue_flag_set_unlocked(QUEUE_FLAG_DEAD, q);
spin_lock_irq(lock);
/*
@ -485,10 +497,6 @@ void blk_cleanup_queue(struct request_queue *q)
queue_flag_set(QUEUE_FLAG_NOMERGES, q);
queue_flag_set(QUEUE_FLAG_NOXMERGES, q);
queue_flag_set(QUEUE_FLAG_DEAD, q);
if (q->queue_lock != &q->__queue_lock)
q->queue_lock = &q->__queue_lock;
spin_unlock_irq(lock);
mutex_unlock(&q->sysfs_lock);
@ -499,6 +507,11 @@ void blk_cleanup_queue(struct request_queue *q)
del_timer_sync(&q->backing_dev_info.laptop_mode_wb_timer);
blk_sync_queue(q);
spin_lock_irq(lock);
if (q->queue_lock != &q->__queue_lock)
q->queue_lock = &q->__queue_lock;
spin_unlock_irq(lock);
/* @q is and will stay empty, shutdown and put */
blk_put_queue(q);
}

41
block/blk-timeout.c
View File

@ -197,44 +197,3 @@ void blk_add_timer(struct request *req)
mod_timer(&q->timeout, expiry);
}
/**
* blk_abort_queue -- Abort all request on given queue
* @queue: pointer to queue
*
*/
void blk_abort_queue(struct request_queue *q)
{
unsigned long flags;
struct request *rq, *tmp;
LIST_HEAD(list);
/*
* Not a request based block device, nothing to abort
*/
if (!q->request_fn)
return;
spin_lock_irqsave(q->queue_lock, flags);
elv_abort_queue(q);
/*
* Splice entries to local list, to avoid deadlocking if entries
* get readded to the timeout list by error handling
*/
list_splice_init(&q->timeout_list, &list);
list_for_each_entry_safe(rq, tmp, &list, timeout_list)
blk_abort_request(rq);
/*
* Occasionally, blk_abort_request() will return without
* deleting the element from the list. Make sure we add those back
* instead of leaving them on the local stack list.
*/
list_splice(&list, &q->timeout_list);
spin_unlock_irqrestore(q->queue_lock, flags);
}
EXPORT_SYMBOL_GPL(blk_abort_queue);

30
block/cfq-iosched.c
View File

@ -17,8 +17,6 @@
#include "blk.h"
#include "blk-cgroup.h"
static struct blkcg_policy blkcg_policy_cfq __maybe_unused;
/*
* tunables
*/
@ -418,11 +416,6 @@ static inline struct cfq_group *pd_to_cfqg(struct blkg_policy_data *pd)
return pd ? container_of(pd, struct cfq_group, pd) : NULL;
}
static inline struct cfq_group *blkg_to_cfqg(struct blkcg_gq *blkg)
{
return pd_to_cfqg(blkg_to_pd(blkg, &blkcg_policy_cfq));
}
static inline struct blkcg_gq *cfqg_to_blkg(struct cfq_group *cfqg)
{
return pd_to_blkg(&cfqg->pd);
@ -572,6 +565,13 @@ static inline void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg) { }
#ifdef CONFIG_CFQ_GROUP_IOSCHED
static struct blkcg_policy blkcg_policy_cfq;
static inline struct cfq_group *blkg_to_cfqg(struct blkcg_gq *blkg)
{
return pd_to_cfqg(blkg_to_pd(blkg, &blkcg_policy_cfq));
}
static inline void cfqg_get(struct cfq_group *cfqg)
{
return blkg_get(cfqg_to_blkg(cfqg));
@ -3951,10 +3951,11 @@ static void cfq_exit_queue(struct elevator_queue *e)
cfq_shutdown_timer_wq(cfqd);
#ifndef CONFIG_CFQ_GROUP_IOSCHED
#ifdef CONFIG_CFQ_GROUP_IOSCHED
blkcg_deactivate_policy(q, &blkcg_policy_cfq);
#else
kfree(cfqd->root_group);
#endif
blkcg_deactivate_policy(q, &blkcg_policy_cfq);
kfree(cfqd);
}
@ -4194,14 +4195,15 @@ static int __init cfq_init(void)
#ifdef CONFIG_CFQ_GROUP_IOSCHED
if (!cfq_group_idle)
cfq_group_idle = 1;
#else
cfq_group_idle = 0;
#endif
ret = blkcg_policy_register(&blkcg_policy_cfq);
if (ret)
return ret;
#else
cfq_group_idle = 0;
#endif
ret = -ENOMEM;
cfq_pool = KMEM_CACHE(cfq_queue, 0);
if (!cfq_pool)
goto err_pol_unreg;
@ -4215,13 +4217,17 @@ static int __init cfq_init(void)
err_free_pool:
kmem_cache_destroy(cfq_pool);
err_pol_unreg:
#ifdef CONFIG_CFQ_GROUP_IOSCHED
blkcg_policy_unregister(&blkcg_policy_cfq);
#endif
return ret;
}
static void __exit cfq_exit(void)
{
#ifdef CONFIG_CFQ_GROUP_IOSCHED
blkcg_policy_unregister(&blkcg_policy_cfq);
#endif
elv_unregister(&iosched_cfq);
kmem_cache_destroy(cfq_pool);
}

5
block/scsi_ioctl.c
View File

@ -721,11 +721,14 @@ int scsi_verify_blk_ioctl(struct block_device *bd, unsigned int cmd)
break;
}
if (capable(CAP_SYS_RAWIO))
return 0;
/* In particular, rule out all resets and host-specific ioctls. */
printk_ratelimited(KERN_WARNING
"%s: sending ioctl %x to a partition!\n", current->comm, cmd);
return capable(CAP_SYS_RAWIO) ? 0 : -ENOIOCTLCMD;
return -ENOIOCTLCMD;
}
EXPORT_SYMBOL(scsi_verify_blk_ioctl);

22
drivers/acpi/acpica/hwsleep.c
View File

@ -95,18 +95,6 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
return_ACPI_STATUS(status);
}
if (sleep_state != ACPI_STATE_S5) {
/*
* Disable BM arbitration. This feature is contained within an
* optional register (PM2 Control), so ignore a BAD_ADDRESS
* exception.
*/
status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 1);
if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) {
return_ACPI_STATUS(status);
}
}
/*
* 1) Disable/Clear all GPEs
* 2) Enable all wakeup GPEs
@ -364,16 +352,6 @@ acpi_status acpi_hw_legacy_wake(u8 sleep_state, u8 flags)
[ACPI_EVENT_POWER_BUTTON].
status_register_id, ACPI_CLEAR_STATUS);
/*
* Enable BM arbitration. This feature is contained within an
* optional register (PM2 Control), so ignore a BAD_ADDRESS
* exception.
*/
status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 0);
if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) {
return_ACPI_STATUS(status);
}
acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WORKING);
return_ACPI_STATUS(status);
}

2
drivers/acpi/acpica/nspredef.c
View File

@ -638,7 +638,7 @@ acpi_ns_check_package(struct acpi_predefined_data *data,
/* Create the new outer package and populate it */
status =
acpi_ns_wrap_with_package(data, *elements,
acpi_ns_wrap_with_package(data, return_object,
return_object_ptr);
if (ACPI_FAILURE(status)) {
return (status);

6
drivers/acpi/processor_core.c
View File

@ -189,10 +189,12 @@ int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
* Processor (CPU3, 0x03, 0x00000410, 0x06) {}
* }
*
* Ignores apic_id and always return 0 for CPU0's handle.
* Ignores apic_id and always returns 0 for the processor
* handle with acpi id 0 if nr_cpu_ids is 1.
* This should be the case if SMP tables are not found.
* Return -1 for other CPU's handle.
*/
if (acpi_id == 0)
if (nr_cpu_ids <= 1 && acpi_id == 0)
return acpi_id;
else
return apic_id;

11
drivers/block/drbd/drbd_bitmap.c
View File

@ -1475,10 +1475,17 @@ void _drbd_bm_set_bits(struct drbd_conf *mdev, const unsigned long s, const unsi
first_word = 0;
spin_lock_irq(&b->bm_lock);
}
/* last page (respectively only page, for first page == last page) */
last_word = MLPP(el >> LN2_BPL);
bm_set_full_words_within_one_page(mdev->bitmap, last_page, first_word, last_word);
/* consider bitmap->bm_bits = 32768, bitmap->bm_number_of_pages = 1. (or multiples).
* ==> e = 32767, el = 32768, last_page = 2,
* and now last_word = 0.
* We do not want to touch last_page in this case,
* as we did not allocate it, it is not present in bitmap->bm_pages.
*/
if (last_word)
bm_set_full_words_within_one_page(mdev->bitmap, last_page, first_word, last_word);
/* possibly trailing bits.
* example: (e & 63) == 63, el will be e+1.

66
drivers/block/drbd/drbd_req.c
View File

@ -472,12 +472,17 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
req->rq_state |= RQ_LOCAL_COMPLETED;
req->rq_state &= ~RQ_LOCAL_PENDING;
D_ASSERT(!(req->rq_state & RQ_NET_MASK));
if (req->rq_state & RQ_LOCAL_ABORTED) {
_req_may_be_done(req, m);
break;
}
__drbd_chk_io_error(mdev, false);
goto_queue_for_net_read:
D_ASSERT(!(req->rq_state & RQ_NET_MASK));
/* no point in retrying if there is no good remote data,
* or we have no connection. */
if (mdev->state.pdsk != D_UP_TO_DATE) {
@ -765,6 +770,40 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s
return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr);
}
static void maybe_pull_ahead(struct drbd_conf *mdev)
{
int congested = 0;
/* If I don't even have good local storage, we can not reasonably try
* to pull ahead of the peer. We also need the local reference to make
* sure mdev->act_log is there.
* Note: caller has to make sure that net_conf is there.
*/
if (!get_ldev_if_state(mdev, D_UP_TO_DATE))
return;
if (mdev->net_conf->cong_fill &&
atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) {
dev_info(DEV, "Congestion-fill threshold reached\n");
congested = 1;
}
if (mdev->act_log->used >= mdev->net_conf->cong_extents) {
dev_info(DEV, "Congestion-extents threshold reached\n");
congested = 1;
}
if (congested) {
queue_barrier(mdev); /* last barrier, after mirrored writes */
if (mdev->net_conf->on_congestion == OC_PULL_AHEAD)
_drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL);
else /*mdev->net_conf->on_congestion == OC_DISCONNECT */
_drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL);
}
put_ldev(mdev);
}
static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time)
{
const int rw = bio_rw(bio);
@ -972,29 +1011,8 @@ static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, uns
_req_mod(req, queue_for_send_oos);
if (remote &&
mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) {
int congested = 0;
if (mdev->net_conf->cong_fill &&
atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) {
dev_info(DEV, "Congestion-fill threshold reached\n");
congested = 1;
}
if (mdev->act_log->used >= mdev->net_conf->cong_extents) {
dev_info(DEV, "Congestion-extents threshold reached\n");
congested = 1;
}
if (congested) {
queue_barrier(mdev); /* last barrier, after mirrored writes */
if (mdev->net_conf->on_congestion == OC_PULL_AHEAD)
_drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL);
else /*mdev->net_conf->on_congestion == OC_DISCONNECT */
_drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL);
}
}
mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96)
maybe_pull_ahead(mdev);
spin_unlock_irq(&mdev->req_lock);
kfree(b); /* if someone else has beaten us to it... */

1
drivers/block/floppy.c
View File

@ -671,6 +671,7 @@ static void __reschedule_timeout(int drive, const char *message)
if (drive == current_reqD)
drive = current_drive;
__cancel_delayed_work(&fd_timeout);
if (drive < 0 || drive >= N_DRIVE) {
delay = 20UL * HZ;

8
drivers/block/loop.c
View File

@ -1597,14 +1597,12 @@ static int loop_add(struct loop_device **l, int i)
struct gendisk *disk;
int err;
err = -ENOMEM;
lo = kzalloc(sizeof(*lo), GFP_KERNEL);
if (!lo) {
err = -ENOMEM;
if (!lo)
goto out;
}
err = idr_pre_get(&loop_index_idr, GFP_KERNEL);
if (err < 0)
if (!idr_pre_get(&loop_index_idr, GFP_KERNEL))
goto out_free_dev;
if (i >= 0) {

246
drivers/block/mtip32xx/mtip32xx.c
View File

@ -37,6 +37,7 @@
#include <linux/kthread.h>
#include <../drivers/ata/ahci.h>
#include <linux/export.h>
#include <linux/debugfs.h>
#include "mtip32xx.h"
#define HW_CMD_SLOT_SZ (MTIP_MAX_COMMAND_SLOTS * 32)
@ -85,6 +86,7 @@ static int instance;
* allocated in mtip_init().
*/
static int mtip_major;
static struct dentry *dfs_parent;
static DEFINE_SPINLOCK(rssd_index_lock);
static DEFINE_IDA(rssd_index_ida);
@ -2546,7 +2548,7 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
}
/*
* Sysfs register/status dump.
* Sysfs status dump.
*
* @dev Pointer to the device structure, passed by the kernrel.
* @attr Pointer to the device_attribute structure passed by the kernel.
@ -2555,71 +2557,6 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
* return value
* The size, in bytes, of the data copied into buf.
*/
static ssize_t mtip_hw_show_registers(struct device *dev,
struct device_attribute *attr,
char *buf)
{
u32 group_allocated;
struct driver_data *dd = dev_to_disk(dev)->private_data;
int size = 0;
int n;
size += sprintf(&buf[size], "Hardware\n--------\n");
size += sprintf(&buf[size], "S ACTive : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->s_active[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Command Issue : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->cmd_issue[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Completed : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->completed[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "PORT IRQ STAT : [ 0x%08X ]\n",
readl(dd->port->mmio + PORT_IRQ_STAT));
size += sprintf(&buf[size], "HOST IRQ STAT : [ 0x%08X ]\n",
readl(dd->mmio + HOST_IRQ_STAT));
size += sprintf(&buf[size], "\n");
size += sprintf(&buf[size], "Local\n-----\n");
size += sprintf(&buf[size], "Allocated : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->allocated[n/2] >> (32*(n&1));
else
group_allocated = dd->port->allocated[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "Commands in Q: [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->cmds_to_issue[n/2] >> (32*(n&1));
else
group_allocated = dd->port->cmds_to_issue[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
return size;
}
static ssize_t mtip_hw_show_status(struct device *dev,
struct device_attribute *attr,
char *buf)
@ -2637,24 +2574,121 @@ static ssize_t mtip_hw_show_status(struct device *dev,
return size;
}
static ssize_t mtip_hw_show_flags(struct device *dev,
struct device_attribute *attr,
char *buf)
static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL);
static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf,
size_t len, loff_t *offset)
{
struct driver_data *dd = dev_to_disk(dev)->private_data;
int size = 0;
struct driver_data *dd = (struct driver_data *)f->private_data;
char buf[MTIP_DFS_MAX_BUF_SIZE];
u32 group_allocated;
int size = *offset;
int n;
size += sprintf(&buf[size], "Flag in port struct : [ %08lX ]\n",
dd->port->flags);
size += sprintf(&buf[size], "Flag in dd struct : [ %08lX ]\n",
dd->dd_flag);
if (!len || size)
return 0;
return size;
if (size < 0)
return -EINVAL;
size += sprintf(&buf[size], "H/ S ACTive : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->s_active[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "H/ Command Issue : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->cmd_issue[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "H/ Completed : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
size += sprintf(&buf[size], "%08X ",
readl(dd->port->completed[n]));
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "H/ PORT IRQ STAT : [ 0x%08X ]\n",
readl(dd->port->mmio + PORT_IRQ_STAT));
size += sprintf(&buf[size], "H/ HOST IRQ STAT : [ 0x%08X ]\n",
readl(dd->mmio + HOST_IRQ_STAT));
size += sprintf(&buf[size], "\n");
size += sprintf(&buf[size], "L/ Allocated : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->allocated[n/2] >> (32*(n&1));
else
group_allocated = dd->port->allocated[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
size += sprintf(&buf[size], "L/ Commands in Q : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--) {
if (sizeof(long) > sizeof(u32))
group_allocated =
dd->port->cmds_to_issue[n/2] >> (32*(n&1));
else
group_allocated = dd->port->cmds_to_issue[n];
size += sprintf(&buf[size], "%08X ", group_allocated);
}
size += sprintf(&buf[size], "]\n");
*offset = size <= len ? size : len;
size = copy_to_user(ubuf, buf, *offset);
if (size)
return -EFAULT;
return *offset;
}
static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL);
static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL);
static DEVICE_ATTR(flags, S_IRUGO, mtip_hw_show_flags, NULL);
static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf,
size_t len, loff_t *offset)
{
struct driver_data *dd = (struct driver_data *)f->private_data;
char buf[MTIP_DFS_MAX_BUF_SIZE];
int size = *offset;
if (!len || size)
return 0;
if (size < 0)
return -EINVAL;
size += sprintf(&buf[size], "Flag-port : [ %08lX ]\n",
dd->port->flags);
size += sprintf(&buf[size], "Flag-dd : [ %08lX ]\n",
dd->dd_flag);
*offset = size <= len ? size : len;
size = copy_to_user(ubuf, buf, *offset);
if (size)
return -EFAULT;
return *offset;
}
static const struct file_operations mtip_regs_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = mtip_hw_read_registers,
.llseek = no_llseek,
};
static const struct file_operations mtip_flags_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = mtip_hw_read_flags,
.llseek = no_llseek,
};
/*
* Create the sysfs related attributes.
@ -2671,15 +2705,9 @@ static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj)
if (!kobj || !dd)
return -EINVAL;
if (sysfs_create_file(kobj, &dev_attr_registers.attr))
dev_warn(&dd->pdev->dev,
"Error creating 'registers' sysfs entry\n");
if (sysfs_create_file(kobj, &dev_attr_status.attr))
dev_warn(&dd->pdev->dev,
"Error creating 'status' sysfs entry\n");
if (sysfs_create_file(kobj, &dev_attr_flags.attr))
dev_warn(&dd->pdev->dev,
"Error creating 'flags' sysfs entry\n");
return 0;
}
@ -2698,13 +2726,39 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj)
if (!kobj || !dd)
return -EINVAL;
sysfs_remove_file(kobj, &dev_attr_registers.attr);
sysfs_remove_file(kobj, &dev_attr_status.attr);
sysfs_remove_file(kobj, &dev_attr_flags.attr);
return 0;
}
static int mtip_hw_debugfs_init(struct driver_data *dd)
{
if (!dfs_parent)
return -1;
dd->dfs_node = debugfs_create_dir(dd->disk->disk_name, dfs_parent);
if (IS_ERR_OR_NULL(dd->dfs_node)) {
dev_warn(&dd->pdev->dev,
"Error creating node %s under debugfs\n",
dd->disk->disk_name);
dd->dfs_node = NULL;
return -1;
}
debugfs_create_file("flags", S_IRUGO, dd->dfs_node, dd,
&mtip_flags_fops);
debugfs_create_file("registers", S_IRUGO, dd->dfs_node, dd,
&mtip_regs_fops);
return 0;
}
static void mtip_hw_debugfs_exit(struct driver_data *dd)
{
debugfs_remove_recursive(dd->dfs_node);
}
/*
* Perform any init/resume time hardware setup
*
@ -3730,6 +3784,7 @@ static int mtip_block_initialize(struct driver_data *dd)
mtip_hw_sysfs_init(dd, kobj);
kobject_put(kobj);
}
mtip_hw_debugfs_init(dd);
if (dd->mtip_svc_handler) {
set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag);
@ -3755,6 +3810,8 @@ static int mtip_block_initialize(struct driver_data *dd)
return rv;
kthread_run_error:
mtip_hw_debugfs_exit(dd);
/* Delete our gendisk. This also removes the device from /dev */
del_gendisk(dd->disk);
@ -3805,6 +3862,7 @@ static int mtip_block_remove(struct driver_data *dd)
kobject_put(kobj);
}
}
mtip_hw_debugfs_exit(dd);
/*
* Delete our gendisk structure. This also removes the device
@ -4152,10 +4210,20 @@ static int __init mtip_init(void)
}
mtip_major = error;
if (!dfs_parent) {
dfs_parent = debugfs_create_dir("rssd", NULL);
if (IS_ERR_OR_NULL(dfs_parent)) {
printk(KERN_WARNING "Error creating debugfs parent\n");
dfs_parent = NULL;
}
}
/* Register our PCI operations. */
error = pci_register_driver(&mtip_pci_driver);
if (error)
if (error) {
debugfs_remove(dfs_parent);
unregister_blkdev(mtip_major, MTIP_DRV_NAME);
}
return error;
}
@ -4172,6 +4240,8 @@ static int __init mtip_init(void)
*/
static void __exit mtip_exit(void)
{
debugfs_remove_recursive(dfs_parent);
/* Release the allocated major block device number. */
unregister_blkdev(mtip_major, MTIP_DRV_NAME);

5
drivers/block/mtip32xx/mtip32xx.h
View File

@ -26,7 +26,6 @@
#include <linux/ata.h>
#include <linux/interrupt.h>
#include <linux/genhd.h>
#include <linux/version.h>
/* Offset of Subsystem Device ID in pci confoguration space */
#define PCI_SUBSYSTEM_DEVICEID 0x2E
@ -111,6 +110,8 @@
#define dbg_printk(format, arg...)
#endif
#define MTIP_DFS_MAX_BUF_SIZE 1024
#define __force_bit2int (unsigned int __force)
enum {
@ -447,6 +448,8 @@ struct driver_data {
unsigned long dd_flag; /* NOTE: use atomic bit operations on this */
struct task_struct *mtip_svc_handler; /* task_struct of svc thd */
struct dentry *dfs_node;
};
#endif

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