mirror of
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synced 2024-11-24 04:19:51 +00:00
Linux 3.6-rc7
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQEcBAABAgAGBQJQX7MuAAoJEHm+PkMAQRiG0h0IAJURkrMCAQUxA+Ik66ReH89s LQcVd0U9uL4UUOi7f5WR64Vf9Cfu6VVGX9ZKSvjpNskvlQaUQPMIt4pMe6g4X4dI u0bApEy4XZz3nGabUAghIU8jJ8cDmhCG6kPpSiS7pi7KHc0yIa4WFtJRrIpGaIWT xuK38YOiOHcSDRlLyWZzainMncQp/ixJdxnqVMTonkVLk0q0b84XzOr4/qlLE5lU i+TsK3PRKdQXgvZ4CebL+srPBwWX1dmgP3VkeBloQbSSenSeELICbFWavn2ml+sF GXi4dO93oNquL/Oy5SwI666T4uNcrRPaS+5X+xSZgBW/y2aQVJVJuNZg6ZP/uWk= =0v2l -----END PGP SIGNATURE----- Merge tag 'v3.6-rc7' into next Linux 3.6-rc7 Requested by David Howells so he can merge his key susbsystem work into my tree with requisite -linus changesets.
This commit is contained in:
James Morris
commit
bf53083445
@ -210,3 +210,15 @@ Users:
|
||||
firmware assigned instance number of the PCI
|
||||
device that can help in understanding the firmware
|
||||
intended order of the PCI device.
|
||||
|
||||
What: /sys/bus/pci/devices/.../d3cold_allowed
|
||||
Date: July 2012
|
||||
Contact: Huang Ying <ying.huang@intel.com>
|
||||
Description:
|
||||
d3cold_allowed is bit to control whether the corresponding PCI
|
||||
device can be put into D3Cold state. If it is cleared, the
|
||||
device will never be put into D3Cold state. If it is set, the
|
||||
device may be put into D3Cold state if other requirements are
|
||||
satisfied too. Reading this attribute will show the current
|
||||
value of d3cold_allowed bit. Writing this attribute will set
|
||||
the value of d3cold_allowed bit.
|
||||
|
||||
@ -5,4 +5,15 @@ Contact: "Ike Panhc <ike.pan@canonical.com>"
|
||||
Description:
|
||||
Control the power of camera module. 1 means on, 0 means off.
|
||||
|
||||
What: /sys/devices/platform/ideapad/fan_mode
|
||||
Date: June 2012
|
||||
KernelVersion: 3.6
|
||||
Contact: "Maxim Mikityanskiy <maxtram95@gmail.com>"
|
||||
Description:
|
||||
Change fan mode
|
||||
There are four available modes:
|
||||
* 0 -> Super Silent Mode
|
||||
* 1 -> Standard Mode
|
||||
* 2 -> Dust Cleaning
|
||||
* 4 -> Efficient Thermal Dissipation Mode
|
||||
|
||||
|
||||
@ -125,7 +125,7 @@ the structure refers to a radio tuner the
|
||||
<constant>V4L2_TUNER_CAP_NORM</constant> flags can't be used.</para>
|
||||
<para>If multiple frequency bands are supported, then
|
||||
<structfield>capability</structfield> is the union of all
|
||||
<structfield>capability></structfield> fields of each &v4l2-frequency-band;.
|
||||
<structfield>capability</structfield> fields of each &v4l2-frequency-band;.
|
||||
</para></entry>
|
||||
</row>
|
||||
<row>
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||||
|
||||
@ -3,15 +3,21 @@
|
||||
biodoc.txt
|
||||
- Notes on the Generic Block Layer Rewrite in Linux 2.5
|
||||
capability.txt
|
||||
- Generic Block Device Capability (/sys/block/<disk>/capability)
|
||||
- Generic Block Device Capability (/sys/block/<device>/capability)
|
||||
cfq-iosched.txt
|
||||
- CFQ IO scheduler tunables
|
||||
data-integrity.txt
|
||||
- Block data integrity
|
||||
deadline-iosched.txt
|
||||
- Deadline IO scheduler tunables
|
||||
ioprio.txt
|
||||
- Block io priorities (in CFQ scheduler)
|
||||
queue-sysfs.txt
|
||||
- Queue's sysfs entries
|
||||
request.txt
|
||||
- The members of struct request (in include/linux/blkdev.h)
|
||||
stat.txt
|
||||
- Block layer statistics in /sys/block/<dev>/stat
|
||||
- Block layer statistics in /sys/block/<device>/stat
|
||||
switching-sched.txt
|
||||
- Switching I/O schedulers at runtime
|
||||
writeback_cache_control.txt
|
||||
|
||||
@ -1,3 +1,14 @@
|
||||
CFQ (Complete Fairness Queueing)
|
||||
===============================
|
||||
|
||||
The main aim of CFQ scheduler is to provide a fair allocation of the disk
|
||||
I/O bandwidth for all the processes which requests an I/O operation.
|
||||
|
||||
CFQ maintains the per process queue for the processes which request I/O
|
||||
operation(syncronous requests). In case of asynchronous requests, all the
|
||||
requests from all the processes are batched together according to their
|
||||
process's I/O priority.
|
||||
|
||||
CFQ ioscheduler tunables
|
||||
========================
|
||||
|
||||
@ -25,6 +36,72 @@ there are multiple spindles behind single LUN (Host based hardware RAID
|
||||
controller or for storage arrays), setting slice_idle=0 might end up in better
|
||||
throughput and acceptable latencies.
|
||||
|
||||
back_seek_max
|
||||
-------------
|
||||
This specifies, given in Kbytes, the maximum "distance" for backward seeking.
|
||||
The distance is the amount of space from the current head location to the
|
||||
sectors that are backward in terms of distance.
|
||||
|
||||
This parameter allows the scheduler to anticipate requests in the "backward"
|
||||
direction and consider them as being the "next" if they are within this
|
||||
distance from the current head location.
|
||||
|
||||
back_seek_penalty
|
||||
-----------------
|
||||
This parameter is used to compute the cost of backward seeking. If the
|
||||
backward distance of request is just 1/back_seek_penalty from a "front"
|
||||
request, then the seeking cost of two requests is considered equivalent.
|
||||
|
||||
So scheduler will not bias toward one or the other request (otherwise scheduler
|
||||
will bias toward front request). Default value of back_seek_penalty is 2.
|
||||
|
||||
fifo_expire_async
|
||||
-----------------
|
||||
This parameter is used to set the timeout of asynchronous requests. Default
|
||||
value of this is 248ms.
|
||||
|
||||
fifo_expire_sync
|
||||
----------------
|
||||
This parameter is used to set the timeout of synchronous requests. Default
|
||||
value of this is 124ms. In case to favor synchronous requests over asynchronous
|
||||
one, this value should be decreased relative to fifo_expire_async.
|
||||
|
||||
slice_async
|
||||
-----------
|
||||
This parameter is same as of slice_sync but for asynchronous queue. The
|
||||
default value is 40ms.
|
||||
|
||||
slice_async_rq
|
||||
--------------
|
||||
This parameter is used to limit the dispatching of asynchronous request to
|
||||
device request queue in queue's slice time. The maximum number of request that
|
||||
are allowed to be dispatched also depends upon the io priority. Default value
|
||||
for this is 2.
|
||||
|
||||
slice_sync
|
||||
----------
|
||||
When a queue is selected for execution, the queues IO requests are only
|
||||
executed for a certain amount of time(time_slice) before switching to another
|
||||
queue. This parameter is used to calculate the time slice of synchronous
|
||||
queue.
|
||||
|
||||
time_slice is computed using the below equation:-
|
||||
time_slice = slice_sync + (slice_sync/5 * (4 - prio)). To increase the
|
||||
time_slice of synchronous queue, increase the value of slice_sync. Default
|
||||
value is 100ms.
|
||||
|
||||
quantum
|
||||
-------
|
||||
This specifies the number of request dispatched to the device queue. In a
|
||||
queue's time slice, a request will not be dispatched if the number of request
|
||||
in the device exceeds this parameter. This parameter is used for synchronous
|
||||
request.
|
||||
|
||||
In case of storage with several disk, this setting can limit the parallel
|
||||
processing of request. Therefore, increasing the value can imporve the
|
||||
performace although this can cause the latency of some I/O to increase due
|
||||
to more number of requests.
|
||||
|
||||
CFQ IOPS Mode for group scheduling
|
||||
===================================
|
||||
Basic CFQ design is to provide priority based time slices. Higher priority
|
||||
|
||||
@ -9,20 +9,71 @@ These files are the ones found in the /sys/block/xxx/queue/ directory.
|
||||
Files denoted with a RO postfix are readonly and the RW postfix means
|
||||
read-write.
|
||||
|
||||
add_random (RW)
|
||||
----------------
|
||||
This file allows to trun off the disk entropy contribution. Default
|
||||
value of this file is '1'(on).
|
||||
|
||||
discard_granularity (RO)
|
||||
-----------------------
|
||||
This shows the size of internal allocation of the device in bytes, if
|
||||
reported by the device. A value of '0' means device does not support
|
||||
the discard functionality.
|
||||
|
||||
discard_max_bytes (RO)
|
||||
----------------------
|
||||
Devices that support discard functionality may have internal limits on
|
||||
the number of bytes that can be trimmed or unmapped in a single operation.
|
||||
The discard_max_bytes parameter is set by the device driver to the maximum
|
||||
number of bytes that can be discarded in a single operation. Discard
|
||||
requests issued to the device must not exceed this limit. A discard_max_bytes
|
||||
value of 0 means that the device does not support discard functionality.
|
||||
|
||||
discard_zeroes_data (RO)
|
||||
------------------------
|
||||
When read, this file will show if the discarded block are zeroed by the
|
||||
device or not. If its value is '1' the blocks are zeroed otherwise not.
|
||||
|
||||
hw_sector_size (RO)
|
||||
-------------------
|
||||
This is the hardware sector size of the device, in bytes.
|
||||
|
||||
iostats (RW)
|
||||
-------------
|
||||
This file is used to control (on/off) the iostats accounting of the
|
||||
disk.
|
||||
|
||||
logical_block_size (RO)
|
||||
-----------------------
|
||||
This is the logcal block size of the device, in bytes.
|
||||
|
||||
max_hw_sectors_kb (RO)
|
||||
----------------------
|
||||
This is the maximum number of kilobytes supported in a single data transfer.
|
||||
|
||||
max_integrity_segments (RO)
|
||||
---------------------------
|
||||
When read, this file shows the max limit of integrity segments as
|
||||
set by block layer which a hardware controller can handle.
|
||||
|
||||
max_sectors_kb (RW)
|
||||
-------------------
|
||||
This is the maximum number of kilobytes that the block layer will allow
|
||||
for a filesystem request. Must be smaller than or equal to the maximum
|
||||
size allowed by the hardware.
|
||||
|
||||
max_segments (RO)
|
||||
-----------------
|
||||
Maximum number of segments of the device.
|
||||
|
||||
max_segment_size (RO)
|
||||
---------------------
|
||||
Maximum segment size of the device.
|
||||
|
||||
minimum_io_size (RO)
|
||||
--------------------
|
||||
This is the smallest preferred io size reported by the device.
|
||||
|
||||
nomerges (RW)
|
||||
-------------
|
||||
This enables the user to disable the lookup logic involved with IO
|
||||
@ -45,11 +96,24 @@ per-block-cgroup request pool. IOW, if there are N block cgroups,
|
||||
each request queue may have upto N request pools, each independently
|
||||
regulated by nr_requests.
|
||||
|
||||
optimal_io_size (RO)
|
||||
--------------------
|
||||
This is the optimal io size reported by the device.
|
||||
|
||||
physical_block_size (RO)
|
||||
------------------------
|
||||
This is the physical block size of device, in bytes.
|
||||
|
||||
read_ahead_kb (RW)
|
||||
------------------
|
||||
Maximum number of kilobytes to read-ahead for filesystems on this block
|
||||
device.
|
||||
|
||||
rotational (RW)
|
||||
---------------
|
||||
This file is used to stat if the device is of rotational type or
|
||||
non-rotational type.
|
||||
|
||||
rq_affinity (RW)
|
||||
----------------
|
||||
If this option is '1', the block layer will migrate request completions to the
|
||||
|
||||
@ -10,8 +10,8 @@ Required properties:
|
||||
- compatible : Should be "fsl,<chip>-esdhc"
|
||||
|
||||
Optional properties:
|
||||
- fsl,cd-internal : Indicate to use controller internal card detection
|
||||
- fsl,wp-internal : Indicate to use controller internal write protection
|
||||
- fsl,cd-controller : Indicate to use controller internal card detection
|
||||
- fsl,wp-controller : Indicate to use controller internal write protection
|
||||
|
||||
Examples:
|
||||
|
||||
@ -19,8 +19,8 @@ esdhc@70004000 {
|
||||
compatible = "fsl,imx51-esdhc";
|
||||
reg = <0x70004000 0x4000>;
|
||||
interrupts = <1>;
|
||||
fsl,cd-internal;
|
||||
fsl,wp-internal;
|
||||
fsl,cd-controller;
|
||||
fsl,wp-controller;
|
||||
};
|
||||
|
||||
esdhc@70008000 {
|
||||
|
||||
@ -9,9 +9,9 @@ Required properties:
|
||||
- regulators: list of regulators provided by this controller, must have
|
||||
property "regulator-compatible" to match their hardware counterparts:
|
||||
sm[0-2], ldo[0-9] and ldo_rtc
|
||||
- sm0-supply: The input supply for the SM0.
|
||||
- sm1-supply: The input supply for the SM1.
|
||||
- sm2-supply: The input supply for the SM2.
|
||||
- vin-sm0-supply: The input supply for the SM0.
|
||||
- vin-sm1-supply: The input supply for the SM1.
|
||||
- vin-sm2-supply: The input supply for the SM2.
|
||||
- vinldo01-supply: The input supply for the LDO1 and LDO2
|
||||
- vinldo23-supply: The input supply for the LDO2 and LDO3
|
||||
- vinldo4-supply: The input supply for the LDO4
|
||||
@ -30,9 +30,9 @@ Example:
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
|
||||
sm0-supply = <&some_reg>;
|
||||
sm1-supply = <&some_reg>;
|
||||
sm2-supply = <&some_reg>;
|
||||
vin-sm0-supply = <&some_reg>;
|
||||
vin-sm1-supply = <&some_reg>;
|
||||
vin-sm2-supply = <&some_reg>;
|
||||
vinldo01-supply = <...>;
|
||||
vinldo23-supply = <...>;
|
||||
vinldo4-supply = <...>;
|
||||
|
||||
@ -579,7 +579,7 @@ Why: KVM tracepoints provide mostly equivalent information in a much more
|
||||
----------------------------
|
||||
|
||||
What: at91-mci driver ("CONFIG_MMC_AT91")
|
||||
When: 3.7
|
||||
When: 3.8
|
||||
Why: There are two mci drivers: at91-mci and atmel-mci. The PDC support
|
||||
was added to atmel-mci as a first step to support more chips.
|
||||
Then at91-mci was kept only for old IP versions (on at91rm9200 and
|
||||
|
||||
@ -137,6 +137,17 @@ errors=panic|continue|remount-ro
|
||||
without doing anything or remount the partition in
|
||||
read-only mode (default behavior).
|
||||
|
||||
discard -- If set, issues discard/TRIM commands to the block
|
||||
device when blocks are freed. This is useful for SSD devices
|
||||
and sparse/thinly-provisoned LUNs.
|
||||
|
||||
nfs -- This option maintains an index (cache) of directory
|
||||
inodes by i_logstart which is used by the nfs-related code to
|
||||
improve look-ups.
|
||||
|
||||
Enable this only if you want to export the FAT filesystem
|
||||
over NFS
|
||||
|
||||
<bool>: 0,1,yes,no,true,false
|
||||
|
||||
TODO
|
||||
|
||||
@ -21,6 +21,7 @@ Supported adapters:
|
||||
* Intel DH89xxCC (PCH)
|
||||
* Intel Panther Point (PCH)
|
||||
* Intel Lynx Point (PCH)
|
||||
* Intel Lynx Point-LP (PCH)
|
||||
Datasheets: Publicly available at the Intel website
|
||||
|
||||
On Intel Patsburg and later chipsets, both the normal host SMBus controller
|
||||
|
||||
@ -51,8 +51,23 @@ Built-in netconsole starts immediately after the TCP stack is
|
||||
initialized and attempts to bring up the supplied dev at the supplied
|
||||
address.
|
||||
|
||||
The remote host can run either 'netcat -u -l -p <port>',
|
||||
'nc -l -u <port>' or syslogd.
|
||||
The remote host has several options to receive the kernel messages,
|
||||
for example:
|
||||
|
||||
1) syslogd
|
||||
|
||||
2) netcat
|
||||
|
||||
On distributions using a BSD-based netcat version (e.g. Fedora,
|
||||
openSUSE and Ubuntu) the listening port must be specified without
|
||||
the -p switch:
|
||||
|
||||
'nc -u -l -p <port>' / 'nc -u -l <port>' or
|
||||
'netcat -u -l -p <port>' / 'netcat -u -l <port>'
|
||||
|
||||
3) socat
|
||||
|
||||
'socat udp-recv:<port> -'
|
||||
|
||||
Dynamic reconfiguration:
|
||||
========================
|
||||
|
||||
@ -840,9 +840,9 @@ static unsigned long i2c_pin_configs[] = {
|
||||
|
||||
static struct pinctrl_map __initdata mapping[] = {
|
||||
PIN_MAP_MUX_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0", "i2c0"),
|
||||
PIN_MAP_MUX_CONFIGS_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0", i2c_grp_configs),
|
||||
PIN_MAP_MUX_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0scl", i2c_pin_configs),
|
||||
PIN_MAP_MUX_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0sda", i2c_pin_configs),
|
||||
PIN_MAP_CONFIGS_GROUP("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0", i2c_grp_configs),
|
||||
PIN_MAP_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0scl", i2c_pin_configs),
|
||||
PIN_MAP_CONFIGS_PIN("foo-i2c.0", PINCTRL_STATE_DEFAULT, "pinctrl-foo", "i2c0sda", i2c_pin_configs),
|
||||
};
|
||||
|
||||
Finally, some devices expect the mapping table to contain certain specific
|
||||
|
||||
@ -299,11 +299,17 @@ map_hugetlb.c.
|
||||
*******************************************************************
|
||||
|
||||
/*
|
||||
* hugepage-shm: see Documentation/vm/hugepage-shm.c
|
||||
* map_hugetlb: see tools/testing/selftests/vm/map_hugetlb.c
|
||||
*/
|
||||
|
||||
*******************************************************************
|
||||
|
||||
/*
|
||||
* hugepage-mmap: see Documentation/vm/hugepage-mmap.c
|
||||
* hugepage-shm: see tools/testing/selftests/vm/hugepage-shm.c
|
||||
*/
|
||||
|
||||
*******************************************************************
|
||||
|
||||
/*
|
||||
* hugepage-mmap: see tools/testing/selftests/vm/hugepage-mmap.c
|
||||
*/
|
||||
|
||||
@ -3,6 +3,7 @@ Kernel driver w1_therm
|
||||
|
||||
Supported chips:
|
||||
* Maxim ds18*20 based temperature sensors.
|
||||
* Maxim ds1825 based temperature sensors.
|
||||
|
||||
Author: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
|
||||
@ -15,6 +16,7 @@ supported family codes:
|
||||
W1_THERM_DS18S20 0x10
|
||||
W1_THERM_DS1822 0x22
|
||||
W1_THERM_DS18B20 0x28
|
||||
W1_THERM_DS1825 0x3B
|
||||
|
||||
Support is provided through the sysfs w1_slave file. Each open and
|
||||
read sequence will initiate a temperature conversion then provide two
|
||||
|
||||
@ -31,7 +31,7 @@ static void keep_alive(void)
|
||||
* or "-e" to enable the card.
|
||||
*/
|
||||
|
||||
void term(int sig)
|
||||
static void term(int sig)
|
||||
{
|
||||
close(fd);
|
||||
fprintf(stderr, "Stopping watchdog ticks...\n");
|
||||
|
||||
30
MAINTAINERS
30
MAINTAINERS
@ -2217,7 +2217,7 @@ S: Maintained
|
||||
F: drivers/scsi/tmscsim.*
|
||||
|
||||
DC395x SCSI driver
|
||||
M: Oliver Neukum <oliver@neukum.name>
|
||||
M: Oliver Neukum <oliver@neukum.org>
|
||||
M: Ali Akcaagac <aliakc@web.de>
|
||||
M: Jamie Lenehan <lenehan@twibble.org>
|
||||
W: http://twibble.org/dist/dc395x/
|
||||
@ -3388,7 +3388,7 @@ M: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
|
||||
L: linux-i2c@vger.kernel.org
|
||||
W: http://i2c.wiki.kernel.org/
|
||||
T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/
|
||||
T: git git://git.fluff.org/bjdooks/linux.git
|
||||
T: git git://git.pengutronix.de/git/wsa/linux.git
|
||||
S: Maintained
|
||||
F: Documentation/i2c/
|
||||
F: drivers/i2c/
|
||||
@ -3666,11 +3666,12 @@ F: Documentation/networking/README.ipw2200
|
||||
F: drivers/net/wireless/ipw2x00/
|
||||
|
||||
INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
|
||||
M: Joseph Cihula <joseph.cihula@intel.com>
|
||||
M: Richard L Maliszewski <richard.l.maliszewski@intel.com>
|
||||
M: Gang Wei <gang.wei@intel.com>
|
||||
M: Shane Wang <shane.wang@intel.com>
|
||||
L: tboot-devel@lists.sourceforge.net
|
||||
W: http://tboot.sourceforge.net
|
||||
T: Mercurial http://www.bughost.org/repos.hg/tboot.hg
|
||||
T: hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot
|
||||
S: Supported
|
||||
F: Documentation/intel_txt.txt
|
||||
F: include/linux/tboot.h
|
||||
@ -4537,7 +4538,7 @@ S: Supported
|
||||
F: arch/microblaze/
|
||||
|
||||
MICROTEK X6 SCANNER
|
||||
M: Oliver Neukum <oliver@neukum.name>
|
||||
M: Oliver Neukum <oliver@neukum.org>
|
||||
S: Maintained
|
||||
F: drivers/usb/image/microtek.*
|
||||
|
||||
@ -7076,7 +7077,7 @@ F: include/linux/mtd/ubi.h
|
||||
F: include/mtd/ubi-user.h
|
||||
|
||||
USB ACM DRIVER
|
||||
M: Oliver Neukum <oliver@neukum.name>
|
||||
M: Oliver Neukum <oliver@neukum.org>
|
||||
L: linux-usb@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/usb/acm.txt
|
||||
@ -7097,7 +7098,7 @@ S: Supported
|
||||
F: drivers/block/ub.c
|
||||
|
||||
USB CDC ETHERNET DRIVER
|
||||
M: Oliver Neukum <oliver@neukum.name>
|
||||
M: Oliver Neukum <oliver@neukum.org>
|
||||
L: linux-usb@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/usb/cdc_*.c
|
||||
@ -7170,7 +7171,7 @@ F: drivers/usb/host/isp116x*
|
||||
F: include/linux/usb/isp116x.h
|
||||
|
||||
USB KAWASAKI LSI DRIVER
|
||||
M: Oliver Neukum <oliver@neukum.name>
|
||||
M: Oliver Neukum <oliver@neukum.org>
|
||||
L: linux-usb@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/usb/serial/kl5kusb105.*
|
||||
@ -7288,6 +7289,12 @@ W: http://www.connecttech.com
|
||||
S: Supported
|
||||
F: drivers/usb/serial/whiteheat*
|
||||
|
||||
USB SMSC75XX ETHERNET DRIVER
|
||||
M: Steve Glendinning <steve.glendinning@shawell.net>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/usb/smsc75xx.*
|
||||
|
||||
USB SMSC95XX ETHERNET DRIVER
|
||||
M: Steve Glendinning <steve.glendinning@shawell.net>
|
||||
L: netdev@vger.kernel.org
|
||||
@ -7670,23 +7677,28 @@ S: Supported
|
||||
F: Documentation/hwmon/wm83??
|
||||
F: arch/arm/mach-s3c64xx/mach-crag6410*
|
||||
F: drivers/clk/clk-wm83*.c
|
||||
F: drivers/extcon/extcon-arizona.c
|
||||
F: drivers/leds/leds-wm83*.c
|
||||
F: drivers/gpio/gpio-*wm*.c
|
||||
F: drivers/gpio/gpio-arizona.c
|
||||
F: drivers/hwmon/wm83??-hwmon.c
|
||||
F: drivers/input/misc/wm831x-on.c
|
||||
F: drivers/input/touchscreen/wm831x-ts.c
|
||||
F: drivers/input/touchscreen/wm97*.c
|
||||
F: drivers/mfd/wm8*.c
|
||||
F: drivers/mfd/arizona*
|
||||
F: drivers/mfd/wm*.c
|
||||
F: drivers/power/wm83*.c
|
||||
F: drivers/rtc/rtc-wm83*.c
|
||||
F: drivers/regulator/wm8*.c
|
||||
F: drivers/video/backlight/wm83*_bl.c
|
||||
F: drivers/watchdog/wm83*_wdt.c
|
||||
F: include/linux/mfd/arizona/
|
||||
F: include/linux/mfd/wm831x/
|
||||
F: include/linux/mfd/wm8350/
|
||||
F: include/linux/mfd/wm8400*
|
||||
F: include/linux/wm97xx.h
|
||||
F: include/sound/wm????.h
|
||||
F: sound/soc/codecs/arizona.?
|
||||
F: sound/soc/codecs/wm*
|
||||
|
||||
WORKQUEUE
|
||||
|
||||
4
Makefile
4
Makefile
@ -1,8 +1,8 @@
|
||||
VERSION = 3
|
||||
PATCHLEVEL = 6
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION = -rc2
|
||||
NAME = Saber-toothed Squirrel
|
||||
EXTRAVERSION = -rc7
|
||||
NAME = Terrified Chipmunk
|
||||
|
||||
# *DOCUMENTATION*
|
||||
# To see a list of typical targets execute "make help"
|
||||
|
||||
@ -18,6 +18,8 @@ config ALPHA
|
||||
select ARCH_HAVE_NMI_SAFE_CMPXCHG
|
||||
select GENERIC_SMP_IDLE_THREAD
|
||||
select GENERIC_CMOS_UPDATE
|
||||
select GENERIC_STRNCPY_FROM_USER
|
||||
select GENERIC_STRNLEN_USER
|
||||
help
|
||||
The Alpha is a 64-bit general-purpose processor designed and
|
||||
marketed by the Digital Equipment Corporation of blessed memory,
|
||||
|
||||
@ -14,8 +14,8 @@
|
||||
*/
|
||||
|
||||
|
||||
#define ATOMIC_INIT(i) ( (atomic_t) { (i) } )
|
||||
#define ATOMIC64_INIT(i) ( (atomic64_t) { (i) } )
|
||||
#define ATOMIC_INIT(i) { (i) }
|
||||
#define ATOMIC64_INIT(i) { (i) }
|
||||
|
||||
#define atomic_read(v) (*(volatile int *)&(v)->counter)
|
||||
#define atomic64_read(v) (*(volatile long *)&(v)->counter)
|
||||
|
||||
@ -1,7 +1,9 @@
|
||||
#ifndef __ASM_ALPHA_FPU_H
|
||||
#define __ASM_ALPHA_FPU_H
|
||||
|
||||
#ifdef __KERNEL__
|
||||
#include <asm/special_insns.h>
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Alpha floating-point control register defines:
|
||||
|
||||
@ -76,7 +76,10 @@ struct switch_stack {
|
||||
#define task_pt_regs(task) \
|
||||
((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1)
|
||||
|
||||
#define force_successful_syscall_return() (task_pt_regs(current)->r0 = 0)
|
||||
#define current_pt_regs() \
|
||||
((struct pt_regs *) ((char *)current_thread_info() + 2*PAGE_SIZE) - 1)
|
||||
|
||||
#define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
@ -76,9 +76,11 @@
|
||||
/* Instruct lower device to use last 4-bytes of skb data as FCS */
|
||||
#define SO_NOFCS 43
|
||||
|
||||
#ifdef __KERNEL__
|
||||
/* O_NONBLOCK clashes with the bits used for socket types. Therefore we
|
||||
* have to define SOCK_NONBLOCK to a different value here.
|
||||
*/
|
||||
#define SOCK_NONBLOCK 0x40000000
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#endif /* _ASM_SOCKET_H */
|
||||
|
||||
@ -433,36 +433,12 @@ clear_user(void __user *to, long len)
|
||||
#undef __module_address
|
||||
#undef __module_call
|
||||
|
||||
/* Returns: -EFAULT if exception before terminator, N if the entire
|
||||
buffer filled, else strlen. */
|
||||
#define user_addr_max() \
|
||||
(segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL)
|
||||
|
||||
extern long __strncpy_from_user(char *__to, const char __user *__from, long __to_len);
|
||||
|
||||
extern inline long
|
||||
strncpy_from_user(char *to, const char __user *from, long n)
|
||||
{
|
||||
long ret = -EFAULT;
|
||||
if (__access_ok((unsigned long)from, 0, get_fs()))
|
||||
ret = __strncpy_from_user(to, from, n);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Returns: 0 if bad, string length+1 (memory size) of string if ok */
|
||||
extern long __strlen_user(const char __user *);
|
||||
|
||||
extern inline long strlen_user(const char __user *str)
|
||||
{
|
||||
return access_ok(VERIFY_READ,str,0) ? __strlen_user(str) : 0;
|
||||
}
|
||||
|
||||
/* Returns: 0 if exception before NUL or reaching the supplied limit (N),
|
||||
* a value greater than N if the limit would be exceeded, else strlen. */
|
||||
extern long __strnlen_user(const char __user *, long);
|
||||
|
||||
extern inline long strnlen_user(const char __user *str, long n)
|
||||
{
|
||||
return access_ok(VERIFY_READ,str,0) ? __strnlen_user(str, n) : 0;
|
||||
}
|
||||
extern long strncpy_from_user(char *dest, const char __user *src, long count);
|
||||
extern __must_check long strlen_user(const char __user *str);
|
||||
extern __must_check long strnlen_user(const char __user *str, long n);
|
||||
|
||||
/*
|
||||
* About the exception table:
|
||||
|
||||
@ -465,10 +465,12 @@
|
||||
#define __NR_setns 501
|
||||
#define __NR_accept4 502
|
||||
#define __NR_sendmmsg 503
|
||||
#define __NR_process_vm_readv 504
|
||||
#define __NR_process_vm_writev 505
|
||||
|
||||
#ifdef __KERNEL__
|
||||
|
||||
#define NR_SYSCALLS 504
|
||||
#define NR_SYSCALLS 506
|
||||
|
||||
#define __ARCH_WANT_OLD_READDIR
|
||||
#define __ARCH_WANT_STAT64
|
||||
|
||||
55
arch/alpha/include/asm/word-at-a-time.h
Normal file
55
arch/alpha/include/asm/word-at-a-time.h
Normal file
@ -0,0 +1,55 @@
|
||||
#ifndef _ASM_WORD_AT_A_TIME_H
|
||||
#define _ASM_WORD_AT_A_TIME_H
|
||||
|
||||
#include <asm/compiler.h>
|
||||
|
||||
/*
|
||||
* word-at-a-time interface for Alpha.
|
||||
*/
|
||||
|
||||
/*
|
||||
* We do not use the word_at_a_time struct on Alpha, but it needs to be
|
||||
* implemented to humour the generic code.
|
||||
*/
|
||||
struct word_at_a_time {
|
||||
const unsigned long unused;
|
||||
};
|
||||
|
||||
#define WORD_AT_A_TIME_CONSTANTS { 0 }
|
||||
|
||||
/* Return nonzero if val has a zero */
|
||||
static inline unsigned long has_zero(unsigned long val, unsigned long *bits, const struct word_at_a_time *c)
|
||||
{
|
||||
unsigned long zero_locations = __kernel_cmpbge(0, val);
|
||||
*bits = zero_locations;
|
||||
return zero_locations;
|
||||
}
|
||||
|
||||
static inline unsigned long prep_zero_mask(unsigned long val, unsigned long bits, const struct word_at_a_time *c)
|
||||
{
|
||||
return bits;
|
||||
}
|
||||
|
||||
#define create_zero_mask(bits) (bits)
|
||||
|
||||
static inline unsigned long find_zero(unsigned long bits)
|
||||
{
|
||||
#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
|
||||
/* Simple if have CIX instructions */
|
||||
return __kernel_cttz(bits);
|
||||
#else
|
||||
unsigned long t1, t2, t3;
|
||||
/* Retain lowest set bit only */
|
||||
bits &= -bits;
|
||||
/* Binary search for lowest set bit */
|
||||
t1 = bits & 0xf0;
|
||||
t2 = bits & 0xcc;
|
||||
t3 = bits & 0xaa;
|
||||
if (t1) t1 = 4;
|
||||
if (t2) t2 = 2;
|
||||
if (t3) t3 = 1;
|
||||
return t1 + t2 + t3;
|
||||
#endif
|
||||
}
|
||||
|
||||
#endif /* _ASM_WORD_AT_A_TIME_H */
|
||||
@ -52,7 +52,6 @@ EXPORT_SYMBOL(alpha_write_fp_reg_s);
|
||||
|
||||
/* entry.S */
|
||||
EXPORT_SYMBOL(kernel_thread);
|
||||
EXPORT_SYMBOL(kernel_execve);
|
||||
|
||||
/* Networking helper routines. */
|
||||
EXPORT_SYMBOL(csum_tcpudp_magic);
|
||||
@ -74,8 +73,6 @@ EXPORT_SYMBOL(alpha_fp_emul);
|
||||
*/
|
||||
EXPORT_SYMBOL(__copy_user);
|
||||
EXPORT_SYMBOL(__do_clear_user);
|
||||
EXPORT_SYMBOL(__strncpy_from_user);
|
||||
EXPORT_SYMBOL(__strnlen_user);
|
||||
|
||||
/*
|
||||
* SMP-specific symbols.
|
||||
|
||||
@ -663,58 +663,6 @@ kernel_thread:
|
||||
br ret_to_kernel
|
||||
.end kernel_thread
|
||||
|
||||
/*
|
||||
* kernel_execve(path, argv, envp)
|
||||
*/
|
||||
.align 4
|
||||
.globl kernel_execve
|
||||
.ent kernel_execve
|
||||
kernel_execve:
|
||||
/* We can be called from a module. */
|
||||
ldgp $gp, 0($27)
|
||||
lda $sp, -(32+SIZEOF_PT_REGS+8)($sp)
|
||||
.frame $sp, 32+SIZEOF_PT_REGS+8, $26, 0
|
||||
stq $26, 0($sp)
|
||||
stq $16, 8($sp)
|
||||
stq $17, 16($sp)
|
||||
stq $18, 24($sp)
|
||||
.prologue 1
|
||||
|
||||
lda $16, 32($sp)
|
||||
lda $17, 0
|
||||
lda $18, SIZEOF_PT_REGS
|
||||
bsr $26, memset !samegp
|
||||
|
||||
/* Avoid the HAE being gratuitously wrong, which would cause us
|
||||
to do the whole turn off interrupts thing and restore it. */
|
||||
ldq $2, alpha_mv+HAE_CACHE
|
||||
stq $2, 152+32($sp)
|
||||
|
||||
ldq $16, 8($sp)
|
||||
ldq $17, 16($sp)
|
||||
ldq $18, 24($sp)
|
||||
lda $19, 32($sp)
|
||||
bsr $26, do_execve !samegp
|
||||
|
||||
ldq $26, 0($sp)
|
||||
bne $0, 1f /* error! */
|
||||
|
||||
/* Move the temporary pt_regs struct from its current location
|
||||
to the top of the kernel stack frame. See copy_thread for
|
||||
details for a normal process. */
|
||||
lda $16, 0x4000 - SIZEOF_PT_REGS($8)
|
||||
lda $17, 32($sp)
|
||||
lda $18, SIZEOF_PT_REGS
|
||||
bsr $26, memmove !samegp
|
||||
|
||||
/* Take that over as our new stack frame and visit userland! */
|
||||
lda $sp, 0x4000 - SIZEOF_PT_REGS($8)
|
||||
br $31, ret_from_sys_call
|
||||
|
||||
1: lda $sp, 32+SIZEOF_PT_REGS+8($sp)
|
||||
ret
|
||||
.end kernel_execve
|
||||
|
||||
|
||||
/*
|
||||
* Special system calls. Most of these are special in that they either
|
||||
@ -796,115 +744,6 @@ sys_rt_sigreturn:
|
||||
br ret_from_sys_call
|
||||
.end sys_rt_sigreturn
|
||||
|
||||
.align 4
|
||||
.globl sys_sethae
|
||||
.ent sys_sethae
|
||||
sys_sethae:
|
||||
.prologue 0
|
||||
stq $16, 152($sp)
|
||||
ret
|
||||
.end sys_sethae
|
||||
|
||||
.align 4
|
||||
.globl osf_getpriority
|
||||
.ent osf_getpriority
|
||||
osf_getpriority:
|
||||
lda $sp, -16($sp)
|
||||
stq $26, 0($sp)
|
||||
.prologue 0
|
||||
|
||||
jsr $26, sys_getpriority
|
||||
|
||||
ldq $26, 0($sp)
|
||||
blt $0, 1f
|
||||
|
||||
/* Return value is the unbiased priority, i.e. 20 - prio.
|
||||
This does result in negative return values, so signal
|
||||
no error by writing into the R0 slot. */
|
||||
lda $1, 20
|
||||
stq $31, 16($sp)
|
||||
subl $1, $0, $0
|
||||
unop
|
||||
|
||||
1: lda $sp, 16($sp)
|
||||
ret
|
||||
.end osf_getpriority
|
||||
|
||||
.align 4
|
||||
.globl sys_getxuid
|
||||
.ent sys_getxuid
|
||||
sys_getxuid:
|
||||
.prologue 0
|
||||
ldq $2, TI_TASK($8)
|
||||
ldq $3, TASK_CRED($2)
|
||||
ldl $0, CRED_UID($3)
|
||||
ldl $1, CRED_EUID($3)
|
||||
stq $1, 80($sp)
|
||||
ret
|
||||
.end sys_getxuid
|
||||
|
||||
.align 4
|
||||
.globl sys_getxgid
|
||||
.ent sys_getxgid
|
||||
sys_getxgid:
|
||||
.prologue 0
|
||||
ldq $2, TI_TASK($8)
|
||||
ldq $3, TASK_CRED($2)
|
||||
ldl $0, CRED_GID($3)
|
||||
ldl $1, CRED_EGID($3)
|
||||
stq $1, 80($sp)
|
||||
ret
|
||||
.end sys_getxgid
|
||||
|
||||
.align 4
|
||||
.globl sys_getxpid
|
||||
.ent sys_getxpid
|
||||
sys_getxpid:
|
||||
.prologue 0
|
||||
ldq $2, TI_TASK($8)
|
||||
|
||||
/* See linux/kernel/timer.c sys_getppid for discussion
|
||||
about this loop. */
|
||||
ldq $3, TASK_GROUP_LEADER($2)
|
||||
ldq $4, TASK_REAL_PARENT($3)
|
||||
ldl $0, TASK_TGID($2)
|
||||
1: ldl $1, TASK_TGID($4)
|
||||
#ifdef CONFIG_SMP
|
||||
mov $4, $5
|
||||
mb
|
||||
ldq $3, TASK_GROUP_LEADER($2)
|
||||
ldq $4, TASK_REAL_PARENT($3)
|
||||
cmpeq $4, $5, $5
|
||||
beq $5, 1b
|
||||
#endif
|
||||
stq $1, 80($sp)
|
||||
ret
|
||||
.end sys_getxpid
|
||||
|
||||
.align 4
|
||||
.globl sys_alpha_pipe
|
||||
.ent sys_alpha_pipe
|
||||
sys_alpha_pipe:
|
||||
lda $sp, -16($sp)
|
||||
stq $26, 0($sp)
|
||||
.prologue 0
|
||||
|
||||
mov $31, $17
|
||||
lda $16, 8($sp)
|
||||
jsr $26, do_pipe_flags
|
||||
|
||||
ldq $26, 0($sp)
|
||||
bne $0, 1f
|
||||
|
||||
/* The return values are in $0 and $20. */
|
||||
ldl $1, 12($sp)
|
||||
ldl $0, 8($sp)
|
||||
|
||||
stq $1, 80+16($sp)
|
||||
1: lda $sp, 16($sp)
|
||||
ret
|
||||
.end sys_alpha_pipe
|
||||
|
||||
.align 4
|
||||
.globl sys_execve
|
||||
.ent sys_execve
|
||||
|
||||
@ -1404,3 +1404,52 @@ SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
SYSCALL_DEFINE2(osf_getpriority, int, which, int, who)
|
||||
{
|
||||
int prio = sys_getpriority(which, who);
|
||||
if (prio >= 0) {
|
||||
/* Return value is the unbiased priority, i.e. 20 - prio.
|
||||
This does result in negative return values, so signal
|
||||
no error */
|
||||
force_successful_syscall_return();
|
||||
prio = 20 - prio;
|
||||
}
|
||||
return prio;
|
||||
}
|
||||
|
||||
SYSCALL_DEFINE0(getxuid)
|
||||
{
|
||||
current_pt_regs()->r20 = sys_geteuid();
|
||||
return sys_getuid();
|
||||
}
|
||||
|
||||
SYSCALL_DEFINE0(getxgid)
|
||||
{
|
||||
current_pt_regs()->r20 = sys_getegid();
|
||||
return sys_getgid();
|
||||
}
|
||||
|
||||
SYSCALL_DEFINE0(getxpid)
|
||||
{
|
||||
current_pt_regs()->r20 = sys_getppid();
|
||||
return sys_getpid();
|
||||
}
|
||||
|
||||
SYSCALL_DEFINE0(alpha_pipe)
|
||||
{
|
||||
int fd[2];
|
||||
int res = do_pipe_flags(fd, 0);
|
||||
if (!res) {
|
||||
/* The return values are in $0 and $20. */
|
||||
current_pt_regs()->r20 = fd[1];
|
||||
res = fd[0];
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
SYSCALL_DEFINE1(sethae, unsigned long, val)
|
||||
{
|
||||
current_pt_regs()->hae = val;
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -455,3 +455,22 @@ get_wchan(struct task_struct *p)
|
||||
}
|
||||
return pc;
|
||||
}
|
||||
|
||||
int kernel_execve(const char *path, const char *const argv[], const char *const envp[])
|
||||
{
|
||||
/* Avoid the HAE being gratuitously wrong, which would cause us
|
||||
to do the whole turn off interrupts thing and restore it. */
|
||||
struct pt_regs regs = {.hae = alpha_mv.hae_cache};
|
||||
int err = do_execve(path, argv, envp, ®s);
|
||||
if (!err) {
|
||||
struct pt_regs *p = current_pt_regs();
|
||||
/* copy regs to normal position and off to userland we go... */
|
||||
*p = regs;
|
||||
__asm__ __volatile__ (
|
||||
"mov %0, $sp;"
|
||||
"br $31, ret_from_sys_call"
|
||||
: : "r"(p));
|
||||
}
|
||||
return err;
|
||||
}
|
||||
EXPORT_SYMBOL(kernel_execve);
|
||||
|
||||
@ -111,7 +111,7 @@ sys_call_table:
|
||||
.quad sys_socket
|
||||
.quad sys_connect
|
||||
.quad sys_accept
|
||||
.quad osf_getpriority /* 100 */
|
||||
.quad sys_osf_getpriority /* 100 */
|
||||
.quad sys_send
|
||||
.quad sys_recv
|
||||
.quad sys_sigreturn
|
||||
@ -522,6 +522,8 @@ sys_call_table:
|
||||
.quad sys_setns
|
||||
.quad sys_accept4
|
||||
.quad sys_sendmmsg
|
||||
.quad sys_process_vm_readv
|
||||
.quad sys_process_vm_writev /* 505 */
|
||||
|
||||
.size sys_call_table, . - sys_call_table
|
||||
.type sys_call_table, @object
|
||||
|
||||
@ -31,8 +31,6 @@ lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \
|
||||
$(ev6-y)memchr.o \
|
||||
$(ev6-y)copy_user.o \
|
||||
$(ev6-y)clear_user.o \
|
||||
$(ev6-y)strncpy_from_user.o \
|
||||
$(ev67-y)strlen_user.o \
|
||||
$(ev6-y)csum_ipv6_magic.o \
|
||||
$(ev6-y)clear_page.o \
|
||||
$(ev6-y)copy_page.o \
|
||||
|
||||
@ -1,424 +0,0 @@
|
||||
/*
|
||||
* arch/alpha/lib/ev6-strncpy_from_user.S
|
||||
* 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
|
||||
*
|
||||
* Just like strncpy except in the return value:
|
||||
*
|
||||
* -EFAULT if an exception occurs before the terminator is copied.
|
||||
* N if the buffer filled.
|
||||
*
|
||||
* Otherwise the length of the string is returned.
|
||||
*
|
||||
* Much of the information about 21264 scheduling/coding comes from:
|
||||
* Compiler Writer's Guide for the Alpha 21264
|
||||
* abbreviated as 'CWG' in other comments here
|
||||
* ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
|
||||
* Scheduling notation:
|
||||
* E - either cluster
|
||||
* U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
|
||||
* L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
|
||||
* A bunch of instructions got moved and temp registers were changed
|
||||
* to aid in scheduling. Control flow was also re-arranged to eliminate
|
||||
* branches, and to provide longer code sequences to enable better scheduling.
|
||||
* A total rewrite (using byte load/stores for start & tail sequences)
|
||||
* is desirable, but very difficult to do without a from-scratch rewrite.
|
||||
* Save that for the future.
|
||||
*/
|
||||
|
||||
|
||||
#include <asm/errno.h>
|
||||
#include <asm/regdef.h>
|
||||
|
||||
|
||||
/* Allow an exception for an insn; exit if we get one. */
|
||||
#define EX(x,y...) \
|
||||
99: x,##y; \
|
||||
.section __ex_table,"a"; \
|
||||
.long 99b - .; \
|
||||
lda $31, $exception-99b($0); \
|
||||
.previous
|
||||
|
||||
|
||||
.set noat
|
||||
.set noreorder
|
||||
.text
|
||||
|
||||
.globl __strncpy_from_user
|
||||
.ent __strncpy_from_user
|
||||
.frame $30, 0, $26
|
||||
.prologue 0
|
||||
|
||||
.align 4
|
||||
__strncpy_from_user:
|
||||
and a0, 7, t3 # E : find dest misalignment
|
||||
beq a2, $zerolength # U :
|
||||
|
||||
/* Are source and destination co-aligned? */
|
||||
mov a0, v0 # E : save the string start
|
||||
xor a0, a1, t4 # E :
|
||||
EX( ldq_u t1, 0(a1) ) # L : Latency=3 load first quadword
|
||||
ldq_u t0, 0(a0) # L : load first (partial) aligned dest quadword
|
||||
|
||||
addq a2, t3, a2 # E : bias count by dest misalignment
|
||||
subq a2, 1, a3 # E :
|
||||
addq zero, 1, t10 # E :
|
||||
and t4, 7, t4 # E : misalignment between the two
|
||||
|
||||
and a3, 7, t6 # E : number of tail bytes
|
||||
sll t10, t6, t10 # E : t10 = bitmask of last count byte
|
||||
bne t4, $unaligned # U :
|
||||
lda t2, -1 # E : build a mask against false zero
|
||||
|
||||
/*
|
||||
* We are co-aligned; take care of a partial first word.
|
||||
* On entry to this basic block:
|
||||
* t0 == the first destination word for masking back in
|
||||
* t1 == the first source word.
|
||||
*/
|
||||
|
||||
srl a3, 3, a2 # E : a2 = loop counter = (count - 1)/8
|
||||
addq a1, 8, a1 # E :
|
||||
mskqh t2, a1, t2 # U : detection in the src word
|
||||
nop
|
||||
|
||||
/* Create the 1st output word and detect 0's in the 1st input word. */
|
||||
mskqh t1, a1, t3 # U :
|
||||
mskql t0, a1, t0 # U : assemble the first output word
|
||||
ornot t1, t2, t2 # E :
|
||||
nop
|
||||
|
||||
cmpbge zero, t2, t8 # E : bits set iff null found
|
||||
or t0, t3, t0 # E :
|
||||
beq a2, $a_eoc # U :
|
||||
bne t8, $a_eos # U : 2nd branch in a quad. Bad.
|
||||
|
||||
/* On entry to this basic block:
|
||||
* t0 == a source quad not containing a null.
|
||||
* a0 - current aligned destination address
|
||||
* a1 - current aligned source address
|
||||
* a2 - count of quadwords to move.
|
||||
* NOTE: Loop improvement - unrolling this is going to be
|
||||
* a huge win, since we're going to stall otherwise.
|
||||
* Fix this later. For _really_ large copies, look
|
||||
* at using wh64 on a look-ahead basis. See the code
|
||||
* in clear_user.S and copy_user.S.
|
||||
* Presumably, since (a0) and (a1) do not overlap (by C definition)
|
||||
* Lots of nops here:
|
||||
* - Separate loads from stores
|
||||
* - Keep it to 1 branch/quadpack so the branch predictor
|
||||
* can train.
|
||||
*/
|
||||
$a_loop:
|
||||
stq_u t0, 0(a0) # L :
|
||||
addq a0, 8, a0 # E :
|
||||
nop
|
||||
subq a2, 1, a2 # E :
|
||||
|
||||
EX( ldq_u t0, 0(a1) ) # L :
|
||||
addq a1, 8, a1 # E :
|
||||
cmpbge zero, t0, t8 # E : Stall 2 cycles on t0
|
||||
beq a2, $a_eoc # U :
|
||||
|
||||
beq t8, $a_loop # U :
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
|
||||
/* Take care of the final (partial) word store. At this point
|
||||
* the end-of-count bit is set in t8 iff it applies.
|
||||
*
|
||||
* On entry to this basic block we have:
|
||||
* t0 == the source word containing the null
|
||||
* t8 == the cmpbge mask that found it.
|
||||
*/
|
||||
$a_eos:
|
||||
negq t8, t12 # E : find low bit set
|
||||
and t8, t12, t12 # E :
|
||||
|
||||
/* We're doing a partial word store and so need to combine
|
||||
our source and original destination words. */
|
||||
ldq_u t1, 0(a0) # L :
|
||||
subq t12, 1, t6 # E :
|
||||
|
||||
or t12, t6, t8 # E :
|
||||
zapnot t0, t8, t0 # U : clear src bytes > null
|
||||
zap t1, t8, t1 # U : clear dst bytes <= null
|
||||
or t0, t1, t0 # E :
|
||||
|
||||
stq_u t0, 0(a0) # L :
|
||||
br $finish_up # L0 :
|
||||
nop
|
||||
nop
|
||||
|
||||
/* Add the end-of-count bit to the eos detection bitmask. */
|
||||
.align 4
|
||||
$a_eoc:
|
||||
or t10, t8, t8
|
||||
br $a_eos
|
||||
nop
|
||||
nop
|
||||
|
||||
|
||||
/* The source and destination are not co-aligned. Align the destination
|
||||
and cope. We have to be very careful about not reading too much and
|
||||
causing a SEGV. */
|
||||
|
||||
.align 4
|
||||
$u_head:
|
||||
/* We know just enough now to be able to assemble the first
|
||||
full source word. We can still find a zero at the end of it
|
||||
that prevents us from outputting the whole thing.
|
||||
|
||||
On entry to this basic block:
|
||||
t0 == the first dest word, unmasked
|
||||
t1 == the shifted low bits of the first source word
|
||||
t6 == bytemask that is -1 in dest word bytes */
|
||||
|
||||
EX( ldq_u t2, 8(a1) ) # L : load second src word
|
||||
addq a1, 8, a1 # E :
|
||||
mskql t0, a0, t0 # U : mask trailing garbage in dst
|
||||
extqh t2, a1, t4 # U :
|
||||
|
||||
or t1, t4, t1 # E : first aligned src word complete
|
||||
mskqh t1, a0, t1 # U : mask leading garbage in src
|
||||
or t0, t1, t0 # E : first output word complete
|
||||
or t0, t6, t6 # E : mask original data for zero test
|
||||
|
||||
cmpbge zero, t6, t8 # E :
|
||||
beq a2, $u_eocfin # U :
|
||||
bne t8, $u_final # U : bad news - 2nd branch in a quad
|
||||
lda t6, -1 # E : mask out the bits we have
|
||||
|
||||
mskql t6, a1, t6 # U : already seen
|
||||
stq_u t0, 0(a0) # L : store first output word
|
||||
or t6, t2, t2 # E :
|
||||
cmpbge zero, t2, t8 # E : find nulls in second partial
|
||||
|
||||
addq a0, 8, a0 # E :
|
||||
subq a2, 1, a2 # E :
|
||||
bne t8, $u_late_head_exit # U :
|
||||
nop
|
||||
|
||||
/* Finally, we've got all the stupid leading edge cases taken care
|
||||
of and we can set up to enter the main loop. */
|
||||
|
||||
extql t2, a1, t1 # U : position hi-bits of lo word
|
||||
EX( ldq_u t2, 8(a1) ) # L : read next high-order source word
|
||||
addq a1, 8, a1 # E :
|
||||
cmpbge zero, t2, t8 # E :
|
||||
|
||||
beq a2, $u_eoc # U :
|
||||
bne t8, $u_eos # U :
|
||||
nop
|
||||
nop
|
||||
|
||||
/* Unaligned copy main loop. In order to avoid reading too much,
|
||||
the loop is structured to detect zeros in aligned source words.
|
||||
This has, unfortunately, effectively pulled half of a loop
|
||||
iteration out into the head and half into the tail, but it does
|
||||
prevent nastiness from accumulating in the very thing we want
|
||||
to run as fast as possible.
|
||||
|
||||
On entry to this basic block:
|
||||
t1 == the shifted high-order bits from the previous source word
|
||||
t2 == the unshifted current source word
|
||||
|
||||
We further know that t2 does not contain a null terminator. */
|
||||
|
||||
/*
|
||||
* Extra nops here:
|
||||
* separate load quads from store quads
|
||||
* only one branch/quad to permit predictor training
|
||||
*/
|
||||
|
||||
.align 4
|
||||
$u_loop:
|
||||
extqh t2, a1, t0 # U : extract high bits for current word
|
||||
addq a1, 8, a1 # E :
|
||||
extql t2, a1, t3 # U : extract low bits for next time
|
||||
addq a0, 8, a0 # E :
|
||||
|
||||
or t0, t1, t0 # E : current dst word now complete
|
||||
EX( ldq_u t2, 0(a1) ) # L : load high word for next time
|
||||
subq a2, 1, a2 # E :
|
||||
nop
|
||||
|
||||
stq_u t0, -8(a0) # L : save the current word
|
||||
mov t3, t1 # E :
|
||||
cmpbge zero, t2, t8 # E : test new word for eos
|
||||
beq a2, $u_eoc # U :
|
||||
|
||||
beq t8, $u_loop # U :
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
|
||||
/* We've found a zero somewhere in the source word we just read.
|
||||
If it resides in the lower half, we have one (probably partial)
|
||||
word to write out, and if it resides in the upper half, we
|
||||
have one full and one partial word left to write out.
|
||||
|
||||
On entry to this basic block:
|
||||
t1 == the shifted high-order bits from the previous source word
|
||||
t2 == the unshifted current source word. */
|
||||
.align 4
|
||||
$u_eos:
|
||||
extqh t2, a1, t0 # U :
|
||||
or t0, t1, t0 # E : first (partial) source word complete
|
||||
cmpbge zero, t0, t8 # E : is the null in this first bit?
|
||||
nop
|
||||
|
||||
bne t8, $u_final # U :
|
||||
stq_u t0, 0(a0) # L : the null was in the high-order bits
|
||||
addq a0, 8, a0 # E :
|
||||
subq a2, 1, a2 # E :
|
||||
|
||||
.align 4
|
||||
$u_late_head_exit:
|
||||
extql t2, a1, t0 # U :
|
||||
cmpbge zero, t0, t8 # E :
|
||||
or t8, t10, t6 # E :
|
||||
cmoveq a2, t6, t8 # E :
|
||||
|
||||
/* Take care of a final (probably partial) result word.
|
||||
On entry to this basic block:
|
||||
t0 == assembled source word
|
||||
t8 == cmpbge mask that found the null. */
|
||||
.align 4
|
||||
$u_final:
|
||||
negq t8, t6 # E : isolate low bit set
|
||||
and t6, t8, t12 # E :
|
||||
ldq_u t1, 0(a0) # L :
|
||||
subq t12, 1, t6 # E :
|
||||
|
||||
or t6, t12, t8 # E :
|
||||
zapnot t0, t8, t0 # U : kill source bytes > null
|
||||
zap t1, t8, t1 # U : kill dest bytes <= null
|
||||
or t0, t1, t0 # E :
|
||||
|
||||
stq_u t0, 0(a0) # E :
|
||||
br $finish_up # U :
|
||||
nop
|
||||
nop
|
||||
|
||||
.align 4
|
||||
$u_eoc: # end-of-count
|
||||
extqh t2, a1, t0 # U :
|
||||
or t0, t1, t0 # E :
|
||||
cmpbge zero, t0, t8 # E :
|
||||
nop
|
||||
|
||||
.align 4
|
||||
$u_eocfin: # end-of-count, final word
|
||||
or t10, t8, t8 # E :
|
||||
br $u_final # U :
|
||||
nop
|
||||
nop
|
||||
|
||||
/* Unaligned copy entry point. */
|
||||
.align 4
|
||||
$unaligned:
|
||||
|
||||
srl a3, 3, a2 # U : a2 = loop counter = (count - 1)/8
|
||||
and a0, 7, t4 # E : find dest misalignment
|
||||
and a1, 7, t5 # E : find src misalignment
|
||||
mov zero, t0 # E :
|
||||
|
||||
/* Conditionally load the first destination word and a bytemask
|
||||
with 0xff indicating that the destination byte is sacrosanct. */
|
||||
|
||||
mov zero, t6 # E :
|
||||
beq t4, 1f # U :
|
||||
ldq_u t0, 0(a0) # L :
|
||||
lda t6, -1 # E :
|
||||
|
||||
mskql t6, a0, t6 # E :
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
|
||||
.align 4
|
||||
1:
|
||||
subq a1, t4, a1 # E : sub dest misalignment from src addr
|
||||
/* If source misalignment is larger than dest misalignment, we need
|
||||
extra startup checks to avoid SEGV. */
|
||||
cmplt t4, t5, t12 # E :
|
||||
extql t1, a1, t1 # U : shift src into place
|
||||
lda t2, -1 # E : for creating masks later
|
||||
|
||||
beq t12, $u_head # U :
|
||||
mskqh t2, t5, t2 # U : begin src byte validity mask
|
||||
cmpbge zero, t1, t8 # E : is there a zero?
|
||||
nop
|
||||
|
||||
extql t2, a1, t2 # U :
|
||||
or t8, t10, t5 # E : test for end-of-count too
|
||||
cmpbge zero, t2, t3 # E :
|
||||
cmoveq a2, t5, t8 # E : Latency=2, extra map slot
|
||||
|
||||
nop # E : goes with cmov
|
||||
andnot t8, t3, t8 # E :
|
||||
beq t8, $u_head # U :
|
||||
nop
|
||||
|
||||
/* At this point we've found a zero in the first partial word of
|
||||
the source. We need to isolate the valid source data and mask
|
||||
it into the original destination data. (Incidentally, we know
|
||||
that we'll need at least one byte of that original dest word.) */
|
||||
|
||||
ldq_u t0, 0(a0) # L :
|
||||
negq t8, t6 # E : build bitmask of bytes <= zero
|
||||
mskqh t1, t4, t1 # U :
|
||||
and t6, t8, t12 # E :
|
||||
|
||||
subq t12, 1, t6 # E :
|
||||
or t6, t12, t8 # E :
|
||||
zapnot t2, t8, t2 # U : prepare source word; mirror changes
|
||||
zapnot t1, t8, t1 # U : to source validity mask
|
||||
|
||||
andnot t0, t2, t0 # E : zero place for source to reside
|
||||
or t0, t1, t0 # E : and put it there
|
||||
stq_u t0, 0(a0) # L :
|
||||
nop
|
||||
|
||||
.align 4
|
||||
$finish_up:
|
||||
zapnot t0, t12, t4 # U : was last byte written null?
|
||||
and t12, 0xf0, t3 # E : binary search for the address of the
|
||||
cmovne t4, 1, t4 # E : Latency=2, extra map slot
|
||||
nop # E : with cmovne
|
||||
|
||||
and t12, 0xcc, t2 # E : last byte written
|
||||
and t12, 0xaa, t1 # E :
|
||||
cmovne t3, 4, t3 # E : Latency=2, extra map slot
|
||||
nop # E : with cmovne
|
||||
|
||||
bic a0, 7, t0
|
||||
cmovne t2, 2, t2 # E : Latency=2, extra map slot
|
||||
nop # E : with cmovne
|
||||
nop
|
||||
|
||||
cmovne t1, 1, t1 # E : Latency=2, extra map slot
|
||||
nop # E : with cmovne
|
||||
addq t0, t3, t0 # E :
|
||||
addq t1, t2, t1 # E :
|
||||
|
||||
addq t0, t1, t0 # E :
|
||||
addq t0, t4, t0 # add one if we filled the buffer
|
||||
subq t0, v0, v0 # find string length
|
||||
ret # L0 :
|
||||
|
||||
.align 4
|
||||
$zerolength:
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
clr v0
|
||||
|
||||
$exception:
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
ret
|
||||
|
||||
.end __strncpy_from_user
|
||||
@ -1,107 +0,0 @@
|
||||
/*
|
||||
* arch/alpha/lib/ev67-strlen_user.S
|
||||
* 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com>
|
||||
*
|
||||
* Return the length of the string including the NULL terminator
|
||||
* (strlen+1) or zero if an error occurred.
|
||||
*
|
||||
* In places where it is critical to limit the processing time,
|
||||
* and the data is not trusted, strnlen_user() should be used.
|
||||
* It will return a value greater than its second argument if
|
||||
* that limit would be exceeded. This implementation is allowed
|
||||
* to access memory beyond the limit, but will not cross a page
|
||||
* boundary when doing so.
|
||||
*
|
||||
* Much of the information about 21264 scheduling/coding comes from:
|
||||
* Compiler Writer's Guide for the Alpha 21264
|
||||
* abbreviated as 'CWG' in other comments here
|
||||
* ftp.digital.com/pub/Digital/info/semiconductor/literature/dsc-library.html
|
||||
* Scheduling notation:
|
||||
* E - either cluster
|
||||
* U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1
|
||||
* L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1
|
||||
* Try not to change the actual algorithm if possible for consistency.
|
||||
*/
|
||||
|
||||
#include <asm/regdef.h>
|
||||
|
||||
|
||||
/* Allow an exception for an insn; exit if we get one. */
|
||||
#define EX(x,y...) \
|
||||
99: x,##y; \
|
||||
.section __ex_table,"a"; \
|
||||
.long 99b - .; \
|
||||
lda v0, $exception-99b(zero); \
|
||||
.previous
|
||||
|
||||
|
||||
.set noreorder
|
||||
.set noat
|
||||
.text
|
||||
|
||||
.globl __strlen_user
|
||||
.ent __strlen_user
|
||||
.frame sp, 0, ra
|
||||
|
||||
.align 4
|
||||
__strlen_user:
|
||||
ldah a1, 32767(zero) # do not use plain strlen_user() for strings
|
||||
# that might be almost 2 GB long; you should
|
||||
# be using strnlen_user() instead
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
|
||||
.globl __strnlen_user
|
||||
|
||||
.align 4
|
||||
__strnlen_user:
|
||||
.prologue 0
|
||||
EX( ldq_u t0, 0(a0) ) # L : load first quadword (a0 may be misaligned)
|
||||
lda t1, -1(zero) # E :
|
||||
|
||||
insqh t1, a0, t1 # U :
|
||||
andnot a0, 7, v0 # E :
|
||||
or t1, t0, t0 # E :
|
||||
subq a0, 1, a0 # E : get our +1 for the return
|
||||
|
||||
cmpbge zero, t0, t1 # E : t1 <- bitmask: bit i == 1 <==> i-th byte == 0
|
||||
subq a1, 7, t2 # E :
|
||||
subq a0, v0, t0 # E :
|
||||
bne t1, $found # U :
|
||||
|
||||
addq t2, t0, t2 # E :
|
||||
addq a1, 1, a1 # E :
|
||||
nop # E :
|
||||
nop # E :
|
||||
|
||||
.align 4
|
||||
$loop: ble t2, $limit # U :
|
||||
EX( ldq t0, 8(v0) ) # L :
|
||||
nop # E :
|
||||
nop # E :
|
||||
|
||||
cmpbge zero, t0, t1 # E :
|
||||
subq t2, 8, t2 # E :
|
||||
addq v0, 8, v0 # E : addr += 8
|
||||
beq t1, $loop # U :
|
||||
|
||||
$found: cttz t1, t2 # U0 :
|
||||
addq v0, t2, v0 # E :
|
||||
subq v0, a0, v0 # E :
|
||||
ret # L0 :
|
||||
|
||||
$exception:
|
||||
nop
|
||||
nop
|
||||
nop
|
||||
ret
|
||||
|
||||
.align 4 # currently redundant
|
||||
$limit:
|
||||
nop
|
||||
nop
|
||||
subq a1, t2, v0
|
||||
ret
|
||||
|
||||
.end __strlen_user
|
||||
@ -1,91 +0,0 @@
|
||||
/*
|
||||
* arch/alpha/lib/strlen_user.S
|
||||
*
|
||||
* Return the length of the string including the NUL terminator
|
||||
* (strlen+1) or zero if an error occurred.
|
||||
*
|
||||
* In places where it is critical to limit the processing time,
|
||||
* and the data is not trusted, strnlen_user() should be used.
|
||||
* It will return a value greater than its second argument if
|
||||
* that limit would be exceeded. This implementation is allowed
|
||||
* to access memory beyond the limit, but will not cross a page
|
||||
* boundary when doing so.
|
||||
*/
|
||||
|
||||
#include <asm/regdef.h>
|
||||
|
||||
|
||||
/* Allow an exception for an insn; exit if we get one. */
|
||||
#define EX(x,y...) \
|
||||
99: x,##y; \
|
||||
.section __ex_table,"a"; \
|
||||
.long 99b - .; \
|
||||
lda v0, $exception-99b(zero); \
|
||||
.previous
|
||||
|
||||
|
||||
.set noreorder
|
||||
.set noat
|
||||
.text
|
||||
|
||||
.globl __strlen_user
|
||||
.ent __strlen_user
|
||||
.frame sp, 0, ra
|
||||
|
||||
.align 3
|
||||
__strlen_user:
|
||||
ldah a1, 32767(zero) # do not use plain strlen_user() for strings
|
||||
# that might be almost 2 GB long; you should
|
||||
# be using strnlen_user() instead
|
||||
|
||||
.globl __strnlen_user
|
||||
|
||||
.align 3
|
||||
__strnlen_user:
|
||||
.prologue 0
|
||||
|
||||
EX( ldq_u t0, 0(a0) ) # load first quadword (a0 may be misaligned)
|
||||
lda t1, -1(zero)
|
||||
insqh t1, a0, t1
|
||||
andnot a0, 7, v0
|
||||
or t1, t0, t0
|
||||
subq a0, 1, a0 # get our +1 for the return
|
||||
cmpbge zero, t0, t1 # t1 <- bitmask: bit i == 1 <==> i-th byte == 0
|
||||
subq a1, 7, t2
|
||||
subq a0, v0, t0
|
||||
bne t1, $found
|
||||
|
||||
addq t2, t0, t2
|
||||
addq a1, 1, a1
|
||||
|
||||
.align 3
|
||||
$loop: ble t2, $limit
|
||||
EX( ldq t0, 8(v0) )
|
||||
subq t2, 8, t2
|
||||
addq v0, 8, v0 # addr += 8
|
||||
cmpbge zero, t0, t1
|
||||
beq t1, $loop
|
||||
|
||||
$found: negq t1, t2 # clear all but least set bit
|
||||
and t1, t2, t1
|
||||
|
||||
and t1, 0xf0, t2 # binary search for that set bit
|
||||
and t1, 0xcc, t3
|
||||
and t1, 0xaa, t4
|
||||
cmovne t2, 4, t2
|
||||
cmovne t3, 2, t3
|
||||
cmovne t4, 1, t4
|
||||
addq t2, t3, t2
|
||||
addq v0, t4, v0
|
||||
addq v0, t2, v0
|
||||
nop # dual issue next two on ev4 and ev5
|
||||
subq v0, a0, v0
|
||||
$exception:
|
||||
ret
|
||||
|
||||
.align 3 # currently redundant
|
||||
$limit:
|
||||
subq a1, t2, v0
|
||||
ret
|
||||
|
||||
.end __strlen_user
|
||||
@ -1,339 +0,0 @@
|
||||
/*
|
||||
* arch/alpha/lib/strncpy_from_user.S
|
||||
* Contributed by Richard Henderson (rth@tamu.edu)
|
||||
*
|
||||
* Just like strncpy except in the return value:
|
||||
*
|
||||
* -EFAULT if an exception occurs before the terminator is copied.
|
||||
* N if the buffer filled.
|
||||
*
|
||||
* Otherwise the length of the string is returned.
|
||||
*/
|
||||
|
||||
|
||||
#include <asm/errno.h>
|
||||
#include <asm/regdef.h>
|
||||
|
||||
|
||||
/* Allow an exception for an insn; exit if we get one. */
|
||||
#define EX(x,y...) \
|
||||
99: x,##y; \
|
||||
.section __ex_table,"a"; \
|
||||
.long 99b - .; \
|
||||
lda $31, $exception-99b($0); \
|
||||
.previous
|
||||
|
||||
|
||||
.set noat
|
||||
.set noreorder
|
||||
.text
|
||||
|
||||
.globl __strncpy_from_user
|
||||
.ent __strncpy_from_user
|
||||
.frame $30, 0, $26
|
||||
.prologue 0
|
||||
|
||||
.align 3
|
||||
$aligned:
|
||||
/* On entry to this basic block:
|
||||
t0 == the first destination word for masking back in
|
||||
t1 == the first source word. */
|
||||
|
||||
/* Create the 1st output word and detect 0's in the 1st input word. */
|
||||
lda t2, -1 # e1 : build a mask against false zero
|
||||
mskqh t2, a1, t2 # e0 : detection in the src word
|
||||
mskqh t1, a1, t3 # e0 :
|
||||
ornot t1, t2, t2 # .. e1 :
|
||||
mskql t0, a1, t0 # e0 : assemble the first output word
|
||||
cmpbge zero, t2, t8 # .. e1 : bits set iff null found
|
||||
or t0, t3, t0 # e0 :
|
||||
beq a2, $a_eoc # .. e1 :
|
||||
bne t8, $a_eos # .. e1 :
|
||||
|
||||
/* On entry to this basic block:
|
||||
t0 == a source word not containing a null. */
|
||||
|
||||
$a_loop:
|
||||
stq_u t0, 0(a0) # e0 :
|
||||
addq a0, 8, a0 # .. e1 :
|
||||
EX( ldq_u t0, 0(a1) ) # e0 :
|
||||
addq a1, 8, a1 # .. e1 :
|
||||
subq a2, 1, a2 # e0 :
|
||||
cmpbge zero, t0, t8 # .. e1 (stall)
|
||||
beq a2, $a_eoc # e1 :
|
||||
beq t8, $a_loop # e1 :
|
||||
|
||||
/* Take care of the final (partial) word store. At this point
|
||||
the end-of-count bit is set in t8 iff it applies.
|
||||
|
||||
On entry to this basic block we have:
|
||||
t0 == the source word containing the null
|
||||
t8 == the cmpbge mask that found it. */
|
||||
|
||||
$a_eos:
|
||||
negq t8, t12 # e0 : find low bit set
|
||||
and t8, t12, t12 # e1 (stall)
|
||||
|
||||
/* For the sake of the cache, don't read a destination word
|
||||
if we're not going to need it. */
|
||||
and t12, 0x80, t6 # e0 :
|
||||
bne t6, 1f # .. e1 (zdb)
|
||||
|
||||
/* We're doing a partial word store and so need to combine
|
||||
our source and original destination words. */
|
||||
ldq_u t1, 0(a0) # e0 :
|
||||
subq t12, 1, t6 # .. e1 :
|
||||
or t12, t6, t8 # e0 :
|
||||
unop #
|
||||
zapnot t0, t8, t0 # e0 : clear src bytes > null
|
||||
zap t1, t8, t1 # .. e1 : clear dst bytes <= null
|
||||
or t0, t1, t0 # e1 :
|
||||
|
||||
1: stq_u t0, 0(a0)
|
||||
br $finish_up
|
||||
|
||||
/* Add the end-of-count bit to the eos detection bitmask. */
|
||||
$a_eoc:
|
||||
or t10, t8, t8
|
||||
br $a_eos
|
||||
|
||||
/*** The Function Entry Point ***/
|
||||
.align 3
|
||||
__strncpy_from_user:
|
||||
mov a0, v0 # save the string start
|
||||
beq a2, $zerolength
|
||||
|
||||
/* Are source and destination co-aligned? */
|
||||
xor a0, a1, t1 # e0 :
|
||||
and a0, 7, t0 # .. e1 : find dest misalignment
|
||||
and t1, 7, t1 # e0 :
|
||||
addq a2, t0, a2 # .. e1 : bias count by dest misalignment
|
||||
subq a2, 1, a2 # e0 :
|
||||
and a2, 7, t2 # e1 :
|
||||
srl a2, 3, a2 # e0 : a2 = loop counter = (count - 1)/8
|
||||
addq zero, 1, t10 # .. e1 :
|
||||
sll t10, t2, t10 # e0 : t10 = bitmask of last count byte
|
||||
bne t1, $unaligned # .. e1 :
|
||||
|
||||
/* We are co-aligned; take care of a partial first word. */
|
||||
|
||||
EX( ldq_u t1, 0(a1) ) # e0 : load first src word
|
||||
addq a1, 8, a1 # .. e1 :
|
||||
|
||||
beq t0, $aligned # avoid loading dest word if not needed
|
||||
ldq_u t0, 0(a0) # e0 :
|
||||
br $aligned # .. e1 :
|
||||
|
||||
|
||||
/* The source and destination are not co-aligned. Align the destination
|
||||
and cope. We have to be very careful about not reading too much and
|
||||
causing a SEGV. */
|
||||
|
||||
.align 3
|
||||
$u_head:
|
||||
/* We know just enough now to be able to assemble the first
|
||||
full source word. We can still find a zero at the end of it
|
||||
that prevents us from outputting the whole thing.
|
||||
|
||||
On entry to this basic block:
|
||||
t0 == the first dest word, unmasked
|
||||
t1 == the shifted low bits of the first source word
|
||||
t6 == bytemask that is -1 in dest word bytes */
|
||||
|
||||
EX( ldq_u t2, 8(a1) ) # e0 : load second src word
|
||||
addq a1, 8, a1 # .. e1 :
|
||||
mskql t0, a0, t0 # e0 : mask trailing garbage in dst
|
||||
extqh t2, a1, t4 # e0 :
|
||||
or t1, t4, t1 # e1 : first aligned src word complete
|
||||
mskqh t1, a0, t1 # e0 : mask leading garbage in src
|
||||
or t0, t1, t0 # e0 : first output word complete
|
||||
or t0, t6, t6 # e1 : mask original data for zero test
|
||||
cmpbge zero, t6, t8 # e0 :
|
||||
beq a2, $u_eocfin # .. e1 :
|
||||
bne t8, $u_final # e1 :
|
||||
|
||||
lda t6, -1 # e1 : mask out the bits we have
|
||||
mskql t6, a1, t6 # e0 : already seen
|
||||
stq_u t0, 0(a0) # e0 : store first output word
|
||||
or t6, t2, t2 # .. e1 :
|
||||
cmpbge zero, t2, t8 # e0 : find nulls in second partial
|
||||
addq a0, 8, a0 # .. e1 :
|
||||
subq a2, 1, a2 # e0 :
|
||||
bne t8, $u_late_head_exit # .. e1 :
|
||||
|
||||
/* Finally, we've got all the stupid leading edge cases taken care
|
||||
of and we can set up to enter the main loop. */
|
||||
|
||||
extql t2, a1, t1 # e0 : position hi-bits of lo word
|
||||
EX( ldq_u t2, 8(a1) ) # .. e1 : read next high-order source word
|
||||
addq a1, 8, a1 # e0 :
|
||||
cmpbge zero, t2, t8 # e1 (stall)
|
||||
beq a2, $u_eoc # e1 :
|
||||
bne t8, $u_eos # e1 :
|
||||
|
||||
/* Unaligned copy main loop. In order to avoid reading too much,
|
||||
the loop is structured to detect zeros in aligned source words.
|
||||
This has, unfortunately, effectively pulled half of a loop
|
||||
iteration out into the head and half into the tail, but it does
|
||||
prevent nastiness from accumulating in the very thing we want
|
||||
to run as fast as possible.
|
||||
|
||||
On entry to this basic block:
|
||||
t1 == the shifted high-order bits from the previous source word
|
||||
t2 == the unshifted current source word
|
||||
|
||||
We further know that t2 does not contain a null terminator. */
|
||||
|
||||
.align 3
|
||||
$u_loop:
|
||||
extqh t2, a1, t0 # e0 : extract high bits for current word
|
||||
addq a1, 8, a1 # .. e1 :
|
||||
extql t2, a1, t3 # e0 : extract low bits for next time
|
||||
addq a0, 8, a0 # .. e1 :
|
||||
or t0, t1, t0 # e0 : current dst word now complete
|
||||
EX( ldq_u t2, 0(a1) ) # .. e1 : load high word for next time
|
||||
stq_u t0, -8(a0) # e0 : save the current word
|
||||
mov t3, t1 # .. e1 :
|
||||
subq a2, 1, a2 # e0 :
|
||||
cmpbge zero, t2, t8 # .. e1 : test new word for eos
|
||||
beq a2, $u_eoc # e1 :
|
||||
beq t8, $u_loop # e1 :
|
||||
|
||||
/* We've found a zero somewhere in the source word we just read.
|
||||
If it resides in the lower half, we have one (probably partial)
|
||||
word to write out, and if it resides in the upper half, we
|
||||
have one full and one partial word left to write out.
|
||||
|
||||
On entry to this basic block:
|
||||
t1 == the shifted high-order bits from the previous source word
|
||||
t2 == the unshifted current source word. */
|
||||
$u_eos:
|
||||
extqh t2, a1, t0 # e0 :
|
||||
or t0, t1, t0 # e1 : first (partial) source word complete
|
||||
|
||||
cmpbge zero, t0, t8 # e0 : is the null in this first bit?
|
||||
bne t8, $u_final # .. e1 (zdb)
|
||||
|
||||
stq_u t0, 0(a0) # e0 : the null was in the high-order bits
|
||||
addq a0, 8, a0 # .. e1 :
|
||||
subq a2, 1, a2 # e1 :
|
||||
|
||||
$u_late_head_exit:
|
||||
extql t2, a1, t0 # .. e0 :
|
||||
cmpbge zero, t0, t8 # e0 :
|
||||
or t8, t10, t6 # e1 :
|
||||
cmoveq a2, t6, t8 # e0 :
|
||||
nop # .. e1 :
|
||||
|
||||
/* Take care of a final (probably partial) result word.
|
||||
On entry to this basic block:
|
||||
t0 == assembled source word
|
||||
t8 == cmpbge mask that found the null. */
|
||||
$u_final:
|
||||
negq t8, t6 # e0 : isolate low bit set
|
||||
and t6, t8, t12 # e1 :
|
||||
|
||||
and t12, 0x80, t6 # e0 : avoid dest word load if we can
|
||||
bne t6, 1f # .. e1 (zdb)
|
||||
|
||||
ldq_u t1, 0(a0) # e0 :
|
||||
subq t12, 1, t6 # .. e1 :
|
||||
or t6, t12, t8 # e0 :
|
||||
zapnot t0, t8, t0 # .. e1 : kill source bytes > null
|
||||
zap t1, t8, t1 # e0 : kill dest bytes <= null
|
||||
or t0, t1, t0 # e1 :
|
||||
|
||||
1: stq_u t0, 0(a0) # e0 :
|
||||
br $finish_up
|
||||
|
||||
$u_eoc: # end-of-count
|
||||
extqh t2, a1, t0
|
||||
or t0, t1, t0
|
||||
cmpbge zero, t0, t8
|
||||
|
||||
$u_eocfin: # end-of-count, final word
|
||||
or t10, t8, t8
|
||||
br $u_final
|
||||
|
||||
/* Unaligned copy entry point. */
|
||||
.align 3
|
||||
$unaligned:
|
||||
|
||||
EX( ldq_u t1, 0(a1) ) # e0 : load first source word
|
||||
|
||||
and a0, 7, t4 # .. e1 : find dest misalignment
|
||||
and a1, 7, t5 # e0 : find src misalignment
|
||||
|
||||
/* Conditionally load the first destination word and a bytemask
|
||||
with 0xff indicating that the destination byte is sacrosanct. */
|
||||
|
||||
mov zero, t0 # .. e1 :
|
||||
mov zero, t6 # e0 :
|
||||
beq t4, 1f # .. e1 :
|
||||
ldq_u t0, 0(a0) # e0 :
|
||||
lda t6, -1 # .. e1 :
|
||||
mskql t6, a0, t6 # e0 :
|
||||
1:
|
||||
subq a1, t4, a1 # .. e1 : sub dest misalignment from src addr
|
||||
|
||||
/* If source misalignment is larger than dest misalignment, we need
|
||||
extra startup checks to avoid SEGV. */
|
||||
|
||||
cmplt t4, t5, t12 # e1 :
|
||||
extql t1, a1, t1 # .. e0 : shift src into place
|
||||
lda t2, -1 # e0 : for creating masks later
|
||||
beq t12, $u_head # e1 :
|
||||
|
||||
mskqh t2, t5, t2 # e0 : begin src byte validity mask
|
||||
cmpbge zero, t1, t8 # .. e1 : is there a zero?
|
||||
extql t2, a1, t2 # e0 :
|
||||
or t8, t10, t5 # .. e1 : test for end-of-count too
|
||||
cmpbge zero, t2, t3 # e0 :
|
||||
cmoveq a2, t5, t8 # .. e1 :
|
||||
andnot t8, t3, t8 # e0 :
|
||||
beq t8, $u_head # .. e1 (zdb)
|
||||
|
||||
/* At this point we've found a zero in the first partial word of
|
||||
the source. We need to isolate the valid source data and mask
|
||||
it into the original destination data. (Incidentally, we know
|
||||
that we'll need at least one byte of that original dest word.) */
|
||||
|
||||
ldq_u t0, 0(a0) # e0 :
|
||||
negq t8, t6 # .. e1 : build bitmask of bytes <= zero
|
||||
mskqh t1, t4, t1 # e0 :
|
||||
and t6, t8, t12 # .. e1 :
|
||||
subq t12, 1, t6 # e0 :
|
||||
or t6, t12, t8 # e1 :
|
||||
|
||||
zapnot t2, t8, t2 # e0 : prepare source word; mirror changes
|
||||
zapnot t1, t8, t1 # .. e1 : to source validity mask
|
||||
|
||||
andnot t0, t2, t0 # e0 : zero place for source to reside
|
||||
or t0, t1, t0 # e1 : and put it there
|
||||
stq_u t0, 0(a0) # e0 :
|
||||
|
||||
$finish_up:
|
||||
zapnot t0, t12, t4 # was last byte written null?
|
||||
cmovne t4, 1, t4
|
||||
|
||||
and t12, 0xf0, t3 # binary search for the address of the
|
||||
and t12, 0xcc, t2 # last byte written
|
||||
and t12, 0xaa, t1
|
||||
bic a0, 7, t0
|
||||
cmovne t3, 4, t3
|
||||
cmovne t2, 2, t2
|
||||
cmovne t1, 1, t1
|
||||
addq t0, t3, t0
|
||||
addq t1, t2, t1
|
||||
addq t0, t1, t0
|
||||
addq t0, t4, t0 # add one if we filled the buffer
|
||||
|
||||
subq t0, v0, v0 # find string length
|
||||
ret
|
||||
|
||||
$zerolength:
|
||||
clr v0
|
||||
$exception:
|
||||
ret
|
||||
|
||||
.end __strncpy_from_user
|
||||
@ -89,6 +89,8 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
|
||||
const struct exception_table_entry *fixup;
|
||||
int fault, si_code = SEGV_MAPERR;
|
||||
siginfo_t info;
|
||||
unsigned int flags = (FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
|
||||
(cause > 0 ? FAULT_FLAG_WRITE : 0));
|
||||
|
||||
/* As of EV6, a load into $31/$f31 is a prefetch, and never faults
|
||||
(or is suppressed by the PALcode). Support that for older CPUs
|
||||
@ -114,6 +116,7 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
|
||||
goto vmalloc_fault;
|
||||
#endif
|
||||
|
||||
retry:
|
||||
down_read(&mm->mmap_sem);
|
||||
vma = find_vma(mm, address);
|
||||
if (!vma)
|
||||
@ -144,8 +147,11 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
|
||||
/* If for any reason at all we couldn't handle the fault,
|
||||
make sure we exit gracefully rather than endlessly redo
|
||||
the fault. */
|
||||
fault = handle_mm_fault(mm, vma, address, cause > 0 ? FAULT_FLAG_WRITE : 0);
|
||||
up_read(&mm->mmap_sem);
|
||||
fault = handle_mm_fault(mm, vma, address, flags);
|
||||
|
||||
if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
|
||||
return;
|
||||
|
||||
if (unlikely(fault & VM_FAULT_ERROR)) {
|
||||
if (fault & VM_FAULT_OOM)
|
||||
goto out_of_memory;
|
||||
@ -153,10 +159,26 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
|
||||
goto do_sigbus;
|
||||
BUG();
|
||||
}
|
||||
if (fault & VM_FAULT_MAJOR)
|
||||
current->maj_flt++;
|
||||
else
|
||||
current->min_flt++;
|
||||
|
||||
if (flags & FAULT_FLAG_ALLOW_RETRY) {
|
||||
if (fault & VM_FAULT_MAJOR)
|
||||
current->maj_flt++;
|
||||
else
|
||||
current->min_flt++;
|
||||
if (fault & VM_FAULT_RETRY) {
|
||||
flags &= ~FAULT_FLAG_ALLOW_RETRY;
|
||||
|
||||
/* No need to up_read(&mm->mmap_sem) as we would
|
||||
* have already released it in __lock_page_or_retry
|
||||
* in mm/filemap.c.
|
||||
*/
|
||||
|
||||
goto retry;
|
||||
}
|
||||
}
|
||||
|
||||
up_read(&mm->mmap_sem);
|
||||
|
||||
return;
|
||||
|
||||
/* Something tried to access memory that isn't in our memory map.
|
||||
@ -186,12 +208,14 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
|
||||
/* We ran out of memory, or some other thing happened to us that
|
||||
made us unable to handle the page fault gracefully. */
|
||||
out_of_memory:
|
||||
up_read(&mm->mmap_sem);
|
||||
if (!user_mode(regs))
|
||||
goto no_context;
|
||||
pagefault_out_of_memory();
|
||||
return;
|
||||
|
||||
do_sigbus:
|
||||
up_read(&mm->mmap_sem);
|
||||
/* Send a sigbus, regardless of whether we were in kernel
|
||||
or user mode. */
|
||||
info.si_signo = SIGBUS;
|
||||
|
||||
@ -12,6 +12,7 @@
|
||||
#include <linux/smp.h>
|
||||
#include <linux/errno.h>
|
||||
#include <asm/ptrace.h>
|
||||
#include <asm/special_insns.h>
|
||||
|
||||
#include "op_impl.h"
|
||||
|
||||
|
||||
@ -6,7 +6,7 @@ config ARM
|
||||
select HAVE_DMA_API_DEBUG
|
||||
select HAVE_IDE if PCI || ISA || PCMCIA
|
||||
select HAVE_DMA_ATTRS
|
||||
select HAVE_DMA_CONTIGUOUS if (CPU_V6 || CPU_V6K || CPU_V7)
|
||||
select HAVE_DMA_CONTIGUOUS if MMU
|
||||
select HAVE_MEMBLOCK
|
||||
select RTC_LIB
|
||||
select SYS_SUPPORTS_APM_EMULATION
|
||||
@ -38,7 +38,6 @@ config ARM
|
||||
select HARDIRQS_SW_RESEND
|
||||
select GENERIC_IRQ_PROBE
|
||||
select GENERIC_IRQ_SHOW
|
||||
select GENERIC_IRQ_PROBE
|
||||
select ARCH_WANT_IPC_PARSE_VERSION
|
||||
select HARDIRQS_SW_RESEND
|
||||
select CPU_PM if (SUSPEND || CPU_IDLE)
|
||||
@ -126,11 +125,6 @@ config TRACE_IRQFLAGS_SUPPORT
|
||||
bool
|
||||
default y
|
||||
|
||||
config GENERIC_LOCKBREAK
|
||||
bool
|
||||
default y
|
||||
depends on SMP && PREEMPT
|
||||
|
||||
config RWSEM_GENERIC_SPINLOCK
|
||||
bool
|
||||
default y
|
||||
@ -2150,6 +2144,7 @@ source "drivers/cpufreq/Kconfig"
|
||||
config CPU_FREQ_IMX
|
||||
tristate "CPUfreq driver for i.MX CPUs"
|
||||
depends on ARCH_MXC && CPU_FREQ
|
||||
select CPU_FREQ_TABLE
|
||||
help
|
||||
This enables the CPUfreq driver for i.MX CPUs.
|
||||
|
||||
|
||||
@ -356,15 +356,15 @@ choice
|
||||
is nothing connected to read from the DCC.
|
||||
|
||||
config DEBUG_SEMIHOSTING
|
||||
bool "Kernel low-level debug output via semihosting I"
|
||||
bool "Kernel low-level debug output via semihosting I/O"
|
||||
help
|
||||
Semihosting enables code running on an ARM target to use
|
||||
the I/O facilities on a host debugger/emulator through a
|
||||
simple SVC calls. The host debugger or emulator must have
|
||||
simple SVC call. The host debugger or emulator must have
|
||||
semihosting enabled for the special svc call to be trapped
|
||||
otherwise the kernel will crash.
|
||||
|
||||
This is known to work with OpenOCD, as wellas
|
||||
This is known to work with OpenOCD, as well as
|
||||
ARM's Fast Models, or any other controlling environment
|
||||
that implements semihosting.
|
||||
|
||||
|
||||
@ -284,10 +284,10 @@ zImage Image xipImage bootpImage uImage: vmlinux
|
||||
zinstall uinstall install: vmlinux
|
||||
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
|
||||
|
||||
%.dtb:
|
||||
%.dtb: scripts
|
||||
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
|
||||
|
||||
dtbs:
|
||||
dtbs: scripts
|
||||
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
|
||||
|
||||
# We use MRPROPER_FILES and CLEAN_FILES now
|
||||
|
||||
@ -653,16 +653,21 @@ __armv7_mmu_cache_on:
|
||||
mcrne p15, 0, r0, c8, c7, 0 @ flush I,D TLBs
|
||||
#endif
|
||||
mrc p15, 0, r0, c1, c0, 0 @ read control reg
|
||||
bic r0, r0, #1 << 28 @ clear SCTLR.TRE
|
||||
orr r0, r0, #0x5000 @ I-cache enable, RR cache replacement
|
||||
orr r0, r0, #0x003c @ write buffer
|
||||
#ifdef CONFIG_MMU
|
||||
#ifdef CONFIG_CPU_ENDIAN_BE8
|
||||
orr r0, r0, #1 << 25 @ big-endian page tables
|
||||
#endif
|
||||
mrcne p15, 0, r6, c2, c0, 2 @ read ttb control reg
|
||||
orrne r0, r0, #1 @ MMU enabled
|
||||
movne r1, #0xfffffffd @ domain 0 = client
|
||||
bic r6, r6, #1 << 31 @ 32-bit translation system
|
||||
bic r6, r6, #3 << 0 @ use only ttbr0
|
||||
mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer
|
||||
mcrne p15, 0, r1, c3, c0, 0 @ load domain access control
|
||||
mcrne p15, 0, r6, c2, c0, 2 @ load ttb control
|
||||
#endif
|
||||
mcr p15, 0, r0, c7, c5, 4 @ ISB
|
||||
mcr p15, 0, r0, c1, c0, 0 @ load control register
|
||||
|
||||
@ -154,5 +154,10 @@
|
||||
#size-cells = <0>;
|
||||
ti,hwmods = "i2c3";
|
||||
};
|
||||
|
||||
wdt2: wdt@44e35000 {
|
||||
compatible = "ti,omap3-wdt";
|
||||
ti,hwmods = "wd_timer2";
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
@ -104,6 +104,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioB: gpio@fffff600 {
|
||||
@ -113,6 +114,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioC: gpio@fffff800 {
|
||||
@ -122,6 +124,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
dbgu: serial@fffff200 {
|
||||
|
||||
@ -95,6 +95,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioB: gpio@fffff400 {
|
||||
@ -104,6 +105,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioC: gpio@fffff600 {
|
||||
@ -113,6 +115,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioD: gpio@fffff800 {
|
||||
@ -122,6 +125,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioE: gpio@fffffa00 {
|
||||
@ -131,6 +135,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
dbgu: serial@ffffee00 {
|
||||
|
||||
@ -15,7 +15,7 @@
|
||||
compatible = "atmel,at91sam9g25ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9";
|
||||
|
||||
chosen {
|
||||
bootargs = "128M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs";
|
||||
bootargs = "console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs";
|
||||
};
|
||||
|
||||
ahb {
|
||||
|
||||
@ -113,6 +113,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioB: gpio@fffff400 {
|
||||
@ -122,6 +123,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioC: gpio@fffff600 {
|
||||
@ -131,6 +133,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioD: gpio@fffff800 {
|
||||
@ -140,6 +143,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioE: gpio@fffffa00 {
|
||||
@ -149,6 +153,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
dbgu: serial@ffffee00 {
|
||||
|
||||
@ -107,6 +107,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioB: gpio@fffff600 {
|
||||
@ -116,6 +117,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioC: gpio@fffff800 {
|
||||
@ -125,6 +127,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioD: gpio@fffffa00 {
|
||||
@ -134,6 +137,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
dbgu: serial@fffff200 {
|
||||
|
||||
@ -115,6 +115,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioB: gpio@fffff600 {
|
||||
@ -124,6 +125,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioC: gpio@fffff800 {
|
||||
@ -133,6 +135,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
pioD: gpio@fffffa00 {
|
||||
@ -142,6 +145,7 @@
|
||||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
dbgu: serial@fffff200 {
|
||||
|
||||
@ -25,8 +25,8 @@
|
||||
aips@70000000 { /* aips-1 */
|
||||
spba@70000000 {
|
||||
esdhc@70004000 { /* ESDHC1 */
|
||||
fsl,cd-internal;
|
||||
fsl,wp-internal;
|
||||
fsl,cd-controller;
|
||||
fsl,wp-controller;
|
||||
status = "okay";
|
||||
};
|
||||
|
||||
|
||||
@ -41,9 +41,13 @@
|
||||
};
|
||||
power-blue {
|
||||
label = "power:blue";
|
||||
gpios = <&gpio1 11 0>;
|
||||
gpios = <&gpio1 10 0>;
|
||||
linux,default-trigger = "timer";
|
||||
};
|
||||
power-red {
|
||||
label = "power:red";
|
||||
gpios = <&gpio1 11 0>;
|
||||
};
|
||||
usb1 {
|
||||
label = "usb1:blue";
|
||||
gpios = <&gpio1 12 0>;
|
||||
|
||||
@ -66,6 +66,7 @@
|
||||
|
||||
vcxio: regulator@8 {
|
||||
compatible = "ti,twl6030-vcxio";
|
||||
regulator-always-on;
|
||||
};
|
||||
|
||||
vusb: regulator@9 {
|
||||
@ -74,10 +75,12 @@
|
||||
|
||||
v1v8: regulator@10 {
|
||||
compatible = "ti,twl6030-v1v8";
|
||||
regulator-always-on;
|
||||
};
|
||||
|
||||
v2v1: regulator@11 {
|
||||
compatible = "ti,twl6030-v2v1";
|
||||
regulator-always-on;
|
||||
};
|
||||
|
||||
clk32kg: regulator@12 {
|
||||
|
||||
@ -33,7 +33,7 @@ CONFIG_AEABI=y
|
||||
CONFIG_FORCE_MAX_ZONEORDER=13
|
||||
CONFIG_ZBOOT_ROM_TEXT=0x0
|
||||
CONFIG_ZBOOT_ROM_BSS=0x0
|
||||
CONFIG_CMDLINE="console=tty0 console=ttySC1,115200 earlyprintk=sh-sci.1,115200 ignore_loglevel root=/dev/nfs ip=dhcp nfsroot=,rsize=4096,wsize=4096"
|
||||
CONFIG_CMDLINE="console=tty0 console=ttySC1,115200 earlyprintk=sh-sci.1,115200 ignore_loglevel root=/dev/nfs ip=dhcp nfsroot=,rsize=4096,wsize=4096 rw"
|
||||
CONFIG_CMDLINE_FORCE=y
|
||||
CONFIG_KEXEC=y
|
||||
CONFIG_VFP=y
|
||||
|
||||
@ -86,6 +86,7 @@ CONFIG_NEW_LEDS=y
|
||||
CONFIG_LEDS_CLASS=y
|
||||
CONFIG_LEDS_LM3530=y
|
||||
CONFIG_LEDS_LP5521=y
|
||||
CONFIG_LEDS_GPIO=y
|
||||
CONFIG_RTC_CLASS=y
|
||||
CONFIG_RTC_DRV_AB8500=y
|
||||
CONFIG_RTC_DRV_PL031=y
|
||||
|
||||
@ -320,4 +320,12 @@
|
||||
.size \name , . - \name
|
||||
.endm
|
||||
|
||||
.macro check_uaccess, addr:req, size:req, limit:req, tmp:req, bad:req
|
||||
#ifndef CONFIG_CPU_USE_DOMAINS
|
||||
adds \tmp, \addr, #\size - 1
|
||||
sbcccs \tmp, \tmp, \limit
|
||||
bcs \bad
|
||||
#endif
|
||||
.endm
|
||||
|
||||
#endif /* __ASM_ASSEMBLER_H__ */
|
||||
|
||||
@ -202,6 +202,13 @@ static inline void dma_free_writecombine(struct device *dev, size_t size,
|
||||
return dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs);
|
||||
}
|
||||
|
||||
/*
|
||||
* This can be called during early boot to increase the size of the atomic
|
||||
* coherent DMA pool above the default value of 256KiB. It must be called
|
||||
* before postcore_initcall.
|
||||
*/
|
||||
extern void __init init_dma_coherent_pool_size(unsigned long size);
|
||||
|
||||
/*
|
||||
* This can be called during boot to increase the size of the consistent
|
||||
* DMA region above it's default value of 2MB. It must be called before the
|
||||
|
||||
@ -187,6 +187,7 @@ static inline unsigned long __phys_to_virt(unsigned long x)
|
||||
#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET)
|
||||
#endif
|
||||
#endif
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
#ifndef PHYS_OFFSET
|
||||
#ifdef PLAT_PHYS_OFFSET
|
||||
@ -196,6 +197,8 @@ static inline unsigned long __phys_to_virt(unsigned long x)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/*
|
||||
* PFNs are used to describe any physical page; this means
|
||||
* PFN 0 == physical address 0.
|
||||
|
||||
@ -195,25 +195,6 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
|
||||
|
||||
#define pte_clear(mm,addr,ptep) set_pte_ext(ptep, __pte(0), 0)
|
||||
|
||||
#if __LINUX_ARM_ARCH__ < 6
|
||||
static inline void __sync_icache_dcache(pte_t pteval)
|
||||
{
|
||||
}
|
||||
#else
|
||||
extern void __sync_icache_dcache(pte_t pteval);
|
||||
#endif
|
||||
|
||||
static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
|
||||
pte_t *ptep, pte_t pteval)
|
||||
{
|
||||
if (addr >= TASK_SIZE)
|
||||
set_pte_ext(ptep, pteval, 0);
|
||||
else {
|
||||
__sync_icache_dcache(pteval);
|
||||
set_pte_ext(ptep, pteval, PTE_EXT_NG);
|
||||
}
|
||||
}
|
||||
|
||||
#define pte_none(pte) (!pte_val(pte))
|
||||
#define pte_present(pte) (pte_val(pte) & L_PTE_PRESENT)
|
||||
#define pte_write(pte) (!(pte_val(pte) & L_PTE_RDONLY))
|
||||
@ -226,6 +207,27 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
|
||||
((pte_val(pte) & (L_PTE_PRESENT | L_PTE_USER)) == \
|
||||
(L_PTE_PRESENT | L_PTE_USER))
|
||||
|
||||
#if __LINUX_ARM_ARCH__ < 6
|
||||
static inline void __sync_icache_dcache(pte_t pteval)
|
||||
{
|
||||
}
|
||||
#else
|
||||
extern void __sync_icache_dcache(pte_t pteval);
|
||||
#endif
|
||||
|
||||
static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
|
||||
pte_t *ptep, pte_t pteval)
|
||||
{
|
||||
unsigned long ext = 0;
|
||||
|
||||
if (addr < TASK_SIZE && pte_present_user(pteval)) {
|
||||
__sync_icache_dcache(pteval);
|
||||
ext |= PTE_EXT_NG;
|
||||
}
|
||||
|
||||
set_pte_ext(ptep, pteval, ext);
|
||||
}
|
||||
|
||||
#define PTE_BIT_FUNC(fn,op) \
|
||||
static inline pte_t pte_##fn(pte_t pte) { pte_val(pte) op; return pte; }
|
||||
|
||||
@ -251,13 +253,13 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
|
||||
*
|
||||
* 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
|
||||
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
|
||||
* <--------------- offset --------------------> <- type --> 0 0 0
|
||||
* <--------------- offset ----------------------> < type -> 0 0 0
|
||||
*
|
||||
* This gives us up to 63 swap files and 32GB per swap file. Note that
|
||||
* This gives us up to 31 swap files and 64GB per swap file. Note that
|
||||
* the offset field is always non-zero.
|
||||
*/
|
||||
#define __SWP_TYPE_SHIFT 3
|
||||
#define __SWP_TYPE_BITS 6
|
||||
#define __SWP_TYPE_BITS 5
|
||||
#define __SWP_TYPE_MASK ((1 << __SWP_TYPE_BITS) - 1)
|
||||
#define __SWP_OFFSET_SHIFT (__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
|
||||
|
||||
|
||||
@ -10,5 +10,7 @@
|
||||
|
||||
extern void sched_clock_postinit(void);
|
||||
extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
|
||||
extern void setup_sched_clock_needs_suspend(u32 (*read)(void), int bits,
|
||||
unsigned long rate);
|
||||
|
||||
#endif
|
||||
|
||||
@ -199,6 +199,9 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
|
||||
{
|
||||
pgtable_page_dtor(pte);
|
||||
|
||||
#ifdef CONFIG_ARM_LPAE
|
||||
tlb_add_flush(tlb, addr);
|
||||
#else
|
||||
/*
|
||||
* With the classic ARM MMU, a pte page has two corresponding pmd
|
||||
* entries, each covering 1MB.
|
||||
@ -206,6 +209,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
|
||||
addr &= PMD_MASK;
|
||||
tlb_add_flush(tlb, addr + SZ_1M - PAGE_SIZE);
|
||||
tlb_add_flush(tlb, addr + SZ_1M);
|
||||
#endif
|
||||
|
||||
tlb_remove_page(tlb, pte);
|
||||
}
|
||||
|
||||
@ -101,28 +101,39 @@ extern int __get_user_1(void *);
|
||||
extern int __get_user_2(void *);
|
||||
extern int __get_user_4(void *);
|
||||
|
||||
#define __get_user_x(__r2,__p,__e,__s,__i...) \
|
||||
#define __GUP_CLOBBER_1 "lr", "cc"
|
||||
#ifdef CONFIG_CPU_USE_DOMAINS
|
||||
#define __GUP_CLOBBER_2 "ip", "lr", "cc"
|
||||
#else
|
||||
#define __GUP_CLOBBER_2 "lr", "cc"
|
||||
#endif
|
||||
#define __GUP_CLOBBER_4 "lr", "cc"
|
||||
|
||||
#define __get_user_x(__r2,__p,__e,__l,__s) \
|
||||
__asm__ __volatile__ ( \
|
||||
__asmeq("%0", "r0") __asmeq("%1", "r2") \
|
||||
__asmeq("%3", "r1") \
|
||||
"bl __get_user_" #__s \
|
||||
: "=&r" (__e), "=r" (__r2) \
|
||||
: "0" (__p) \
|
||||
: __i, "cc")
|
||||
: "0" (__p), "r" (__l) \
|
||||
: __GUP_CLOBBER_##__s)
|
||||
|
||||
#define get_user(x,p) \
|
||||
#define __get_user_check(x,p) \
|
||||
({ \
|
||||
unsigned long __limit = current_thread_info()->addr_limit - 1; \
|
||||
register const typeof(*(p)) __user *__p asm("r0") = (p);\
|
||||
register unsigned long __r2 asm("r2"); \
|
||||
register unsigned long __l asm("r1") = __limit; \
|
||||
register int __e asm("r0"); \
|
||||
switch (sizeof(*(__p))) { \
|
||||
case 1: \
|
||||
__get_user_x(__r2, __p, __e, 1, "lr"); \
|
||||
break; \
|
||||
__get_user_x(__r2, __p, __e, __l, 1); \
|
||||
break; \
|
||||
case 2: \
|
||||
__get_user_x(__r2, __p, __e, 2, "r3", "lr"); \
|
||||
__get_user_x(__r2, __p, __e, __l, 2); \
|
||||
break; \
|
||||
case 4: \
|
||||
__get_user_x(__r2, __p, __e, 4, "lr"); \
|
||||
__get_user_x(__r2, __p, __e, __l, 4); \
|
||||
break; \
|
||||
default: __e = __get_user_bad(); break; \
|
||||
} \
|
||||
@ -130,42 +141,57 @@ extern int __get_user_4(void *);
|
||||
__e; \
|
||||
})
|
||||
|
||||
#define get_user(x,p) \
|
||||
({ \
|
||||
might_fault(); \
|
||||
__get_user_check(x,p); \
|
||||
})
|
||||
|
||||
extern int __put_user_1(void *, unsigned int);
|
||||
extern int __put_user_2(void *, unsigned int);
|
||||
extern int __put_user_4(void *, unsigned int);
|
||||
extern int __put_user_8(void *, unsigned long long);
|
||||
|
||||
#define __put_user_x(__r2,__p,__e,__s) \
|
||||
#define __put_user_x(__r2,__p,__e,__l,__s) \
|
||||
__asm__ __volatile__ ( \
|
||||
__asmeq("%0", "r0") __asmeq("%2", "r2") \
|
||||
__asmeq("%3", "r1") \
|
||||
"bl __put_user_" #__s \
|
||||
: "=&r" (__e) \
|
||||
: "0" (__p), "r" (__r2) \
|
||||
: "0" (__p), "r" (__r2), "r" (__l) \
|
||||
: "ip", "lr", "cc")
|
||||
|
||||
#define put_user(x,p) \
|
||||
#define __put_user_check(x,p) \
|
||||
({ \
|
||||
unsigned long __limit = current_thread_info()->addr_limit - 1; \
|
||||
register const typeof(*(p)) __r2 asm("r2") = (x); \
|
||||
register const typeof(*(p)) __user *__p asm("r0") = (p);\
|
||||
register unsigned long __l asm("r1") = __limit; \
|
||||
register int __e asm("r0"); \
|
||||
switch (sizeof(*(__p))) { \
|
||||
case 1: \
|
||||
__put_user_x(__r2, __p, __e, 1); \
|
||||
__put_user_x(__r2, __p, __e, __l, 1); \
|
||||
break; \
|
||||
case 2: \
|
||||
__put_user_x(__r2, __p, __e, 2); \
|
||||
__put_user_x(__r2, __p, __e, __l, 2); \
|
||||
break; \
|
||||
case 4: \
|
||||
__put_user_x(__r2, __p, __e, 4); \
|
||||
__put_user_x(__r2, __p, __e, __l, 4); \
|
||||
break; \
|
||||
case 8: \
|
||||
__put_user_x(__r2, __p, __e, 8); \
|
||||
__put_user_x(__r2, __p, __e, __l, 8); \
|
||||
break; \
|
||||
default: __e = __put_user_bad(); break; \
|
||||
} \
|
||||
__e; \
|
||||
})
|
||||
|
||||
#define put_user(x,p) \
|
||||
({ \
|
||||
might_fault(); \
|
||||
__put_user_check(x,p); \
|
||||
})
|
||||
|
||||
#else /* CONFIG_MMU */
|
||||
|
||||
/*
|
||||
@ -219,6 +245,7 @@ do { \
|
||||
unsigned long __gu_addr = (unsigned long)(ptr); \
|
||||
unsigned long __gu_val; \
|
||||
__chk_user_ptr(ptr); \
|
||||
might_fault(); \
|
||||
switch (sizeof(*(ptr))) { \
|
||||
case 1: __get_user_asm_byte(__gu_val,__gu_addr,err); break; \
|
||||
case 2: __get_user_asm_half(__gu_val,__gu_addr,err); break; \
|
||||
@ -300,6 +327,7 @@ do { \
|
||||
unsigned long __pu_addr = (unsigned long)(ptr); \
|
||||
__typeof__(*(ptr)) __pu_val = (x); \
|
||||
__chk_user_ptr(ptr); \
|
||||
might_fault(); \
|
||||
switch (sizeof(*(ptr))) { \
|
||||
case 1: __put_user_asm_byte(__pu_val,__pu_addr,err); break; \
|
||||
case 2: __put_user_asm_half(__pu_val,__pu_addr,err); break; \
|
||||
|
||||
@ -404,6 +404,7 @@
|
||||
#define __NR_setns (__NR_SYSCALL_BASE+375)
|
||||
#define __NR_process_vm_readv (__NR_SYSCALL_BASE+376)
|
||||
#define __NR_process_vm_writev (__NR_SYSCALL_BASE+377)
|
||||
/* 378 for kcmp */
|
||||
|
||||
/*
|
||||
* The following SWIs are ARM private.
|
||||
@ -483,6 +484,7 @@
|
||||
*/
|
||||
#define __IGNORE_fadvise64_64
|
||||
#define __IGNORE_migrate_pages
|
||||
#define __IGNORE_kcmp
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
#endif /* __ASM_ARM_UNISTD_H */
|
||||
|
||||
@ -387,6 +387,7 @@
|
||||
/* 375 */ CALL(sys_setns)
|
||||
CALL(sys_process_vm_readv)
|
||||
CALL(sys_process_vm_writev)
|
||||
CALL(sys_ni_syscall) /* reserved for sys_kcmp */
|
||||
#ifndef syscalls_counted
|
||||
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
|
||||
#define syscalls_counted
|
||||
|
||||
@ -159,6 +159,12 @@ static int debug_arch_supported(void)
|
||||
arch >= ARM_DEBUG_ARCH_V7_1;
|
||||
}
|
||||
|
||||
/* Can we determine the watchpoint access type from the fsr? */
|
||||
static int debug_exception_updates_fsr(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Determine number of WRP registers available. */
|
||||
static int get_num_wrp_resources(void)
|
||||
{
|
||||
@ -604,13 +610,14 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
|
||||
/* Aligned */
|
||||
break;
|
||||
case 1:
|
||||
/* Allow single byte watchpoint. */
|
||||
if (info->ctrl.len == ARM_BREAKPOINT_LEN_1)
|
||||
break;
|
||||
case 2:
|
||||
/* Allow halfword watchpoints and breakpoints. */
|
||||
if (info->ctrl.len == ARM_BREAKPOINT_LEN_2)
|
||||
break;
|
||||
case 3:
|
||||
/* Allow single byte watchpoint. */
|
||||
if (info->ctrl.len == ARM_BREAKPOINT_LEN_1)
|
||||
break;
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
@ -619,18 +626,35 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
|
||||
info->address &= ~alignment_mask;
|
||||
info->ctrl.len <<= offset;
|
||||
|
||||
/*
|
||||
* Currently we rely on an overflow handler to take
|
||||
* care of single-stepping the breakpoint when it fires.
|
||||
* In the case of userspace breakpoints on a core with V7 debug,
|
||||
* we can use the mismatch feature as a poor-man's hardware
|
||||
* single-step, but this only works for per-task breakpoints.
|
||||
*/
|
||||
if (!bp->overflow_handler && (arch_check_bp_in_kernelspace(bp) ||
|
||||
!core_has_mismatch_brps() || !bp->hw.bp_target)) {
|
||||
pr_warning("overflow handler required but none found\n");
|
||||
ret = -EINVAL;
|
||||
if (!bp->overflow_handler) {
|
||||
/*
|
||||
* Mismatch breakpoints are required for single-stepping
|
||||
* breakpoints.
|
||||
*/
|
||||
if (!core_has_mismatch_brps())
|
||||
return -EINVAL;
|
||||
|
||||
/* We don't allow mismatch breakpoints in kernel space. */
|
||||
if (arch_check_bp_in_kernelspace(bp))
|
||||
return -EPERM;
|
||||
|
||||
/*
|
||||
* Per-cpu breakpoints are not supported by our stepping
|
||||
* mechanism.
|
||||
*/
|
||||
if (!bp->hw.bp_target)
|
||||
return -EINVAL;
|
||||
|
||||
/*
|
||||
* We only support specific access types if the fsr
|
||||
* reports them.
|
||||
*/
|
||||
if (!debug_exception_updates_fsr() &&
|
||||
(info->ctrl.type == ARM_BREAKPOINT_LOAD ||
|
||||
info->ctrl.type == ARM_BREAKPOINT_STORE))
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
@ -706,10 +730,12 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr,
|
||||
goto unlock;
|
||||
|
||||
/* Check that the access type matches. */
|
||||
access = (fsr & ARM_FSR_ACCESS_MASK) ? HW_BREAKPOINT_W :
|
||||
HW_BREAKPOINT_R;
|
||||
if (!(access & hw_breakpoint_type(wp)))
|
||||
goto unlock;
|
||||
if (debug_exception_updates_fsr()) {
|
||||
access = (fsr & ARM_FSR_ACCESS_MASK) ?
|
||||
HW_BREAKPOINT_W : HW_BREAKPOINT_R;
|
||||
if (!(access & hw_breakpoint_type(wp)))
|
||||
goto unlock;
|
||||
}
|
||||
|
||||
/* We have a winner. */
|
||||
info->trigger = addr;
|
||||
|
||||
@ -21,6 +21,8 @@ struct clock_data {
|
||||
u32 epoch_cyc_copy;
|
||||
u32 mult;
|
||||
u32 shift;
|
||||
bool suspended;
|
||||
bool needs_suspend;
|
||||
};
|
||||
|
||||
static void sched_clock_poll(unsigned long wrap_ticks);
|
||||
@ -49,6 +51,9 @@ static unsigned long long cyc_to_sched_clock(u32 cyc, u32 mask)
|
||||
u64 epoch_ns;
|
||||
u32 epoch_cyc;
|
||||
|
||||
if (cd.suspended)
|
||||
return cd.epoch_ns;
|
||||
|
||||
/*
|
||||
* Load the epoch_cyc and epoch_ns atomically. We do this by
|
||||
* ensuring that we always write epoch_cyc, epoch_ns and
|
||||
@ -98,6 +103,13 @@ static void sched_clock_poll(unsigned long wrap_ticks)
|
||||
update_sched_clock();
|
||||
}
|
||||
|
||||
void __init setup_sched_clock_needs_suspend(u32 (*read)(void), int bits,
|
||||
unsigned long rate)
|
||||
{
|
||||
setup_sched_clock(read, bits, rate);
|
||||
cd.needs_suspend = true;
|
||||
}
|
||||
|
||||
void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
|
||||
{
|
||||
unsigned long r, w;
|
||||
@ -169,11 +181,23 @@ void __init sched_clock_postinit(void)
|
||||
static int sched_clock_suspend(void)
|
||||
{
|
||||
sched_clock_poll(sched_clock_timer.data);
|
||||
if (cd.needs_suspend)
|
||||
cd.suspended = true;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void sched_clock_resume(void)
|
||||
{
|
||||
if (cd.needs_suspend) {
|
||||
cd.epoch_cyc = read_sched_clock();
|
||||
cd.epoch_cyc_copy = cd.epoch_cyc;
|
||||
cd.suspended = false;
|
||||
}
|
||||
}
|
||||
|
||||
static struct syscore_ops sched_clock_ops = {
|
||||
.suspend = sched_clock_suspend,
|
||||
.resume = sched_clock_resume,
|
||||
};
|
||||
|
||||
static int __init sched_clock_syscore_init(void)
|
||||
|
||||
@ -11,7 +11,6 @@
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/cpufreq.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/err.h>
|
||||
@ -96,7 +95,52 @@ static void twd_timer_stop(struct clock_event_device *clk)
|
||||
disable_percpu_irq(clk->irq);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_CPU_FREQ
|
||||
#ifdef CONFIG_COMMON_CLK
|
||||
|
||||
/*
|
||||
* Updates clockevent frequency when the cpu frequency changes.
|
||||
* Called on the cpu that is changing frequency with interrupts disabled.
|
||||
*/
|
||||
static void twd_update_frequency(void *new_rate)
|
||||
{
|
||||
twd_timer_rate = *((unsigned long *) new_rate);
|
||||
|
||||
clockevents_update_freq(*__this_cpu_ptr(twd_evt), twd_timer_rate);
|
||||
}
|
||||
|
||||
static int twd_rate_change(struct notifier_block *nb,
|
||||
unsigned long flags, void *data)
|
||||
{
|
||||
struct clk_notifier_data *cnd = data;
|
||||
|
||||
/*
|
||||
* The twd clock events must be reprogrammed to account for the new
|
||||
* frequency. The timer is local to a cpu, so cross-call to the
|
||||
* changing cpu.
|
||||
*/
|
||||
if (flags == POST_RATE_CHANGE)
|
||||
smp_call_function(twd_update_frequency,
|
||||
(void *)&cnd->new_rate, 1);
|
||||
|
||||
return NOTIFY_OK;
|
||||
}
|
||||
|
||||
static struct notifier_block twd_clk_nb = {
|
||||
.notifier_call = twd_rate_change,
|
||||
};
|
||||
|
||||
static int twd_clk_init(void)
|
||||
{
|
||||
if (twd_evt && *__this_cpu_ptr(twd_evt) && !IS_ERR(twd_clk))
|
||||
return clk_notifier_register(twd_clk, &twd_clk_nb);
|
||||
|
||||
return 0;
|
||||
}
|
||||
core_initcall(twd_clk_init);
|
||||
|
||||
#elif defined (CONFIG_CPU_FREQ)
|
||||
|
||||
#include <linux/cpufreq.h>
|
||||
|
||||
/*
|
||||
* Updates clockevent frequency when the cpu frequency changes.
|
||||
|
||||
@ -321,7 +321,7 @@ void store_cpu_topology(unsigned int cpuid)
|
||||
* init_cpu_topology is called at boot when only one cpu is running
|
||||
* which prevent simultaneous write access to cpu_topology array
|
||||
*/
|
||||
void init_cpu_topology(void)
|
||||
void __init init_cpu_topology(void)
|
||||
{
|
||||
unsigned int cpu;
|
||||
|
||||
|
||||
@ -420,20 +420,23 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
|
||||
#endif
|
||||
instr = *(u32 *) pc;
|
||||
} else if (thumb_mode(regs)) {
|
||||
get_user(instr, (u16 __user *)pc);
|
||||
if (get_user(instr, (u16 __user *)pc))
|
||||
goto die_sig;
|
||||
if (is_wide_instruction(instr)) {
|
||||
unsigned int instr2;
|
||||
get_user(instr2, (u16 __user *)pc+1);
|
||||
if (get_user(instr2, (u16 __user *)pc+1))
|
||||
goto die_sig;
|
||||
instr <<= 16;
|
||||
instr |= instr2;
|
||||
}
|
||||
} else {
|
||||
get_user(instr, (u32 __user *)pc);
|
||||
} else if (get_user(instr, (u32 __user *)pc)) {
|
||||
goto die_sig;
|
||||
}
|
||||
|
||||
if (call_undef_hook(regs, instr) == 0)
|
||||
return;
|
||||
|
||||
die_sig:
|
||||
#ifdef CONFIG_DEBUG_USER
|
||||
if (user_debug & UDBG_UNDEFINED) {
|
||||
printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n",
|
||||
|
||||
@ -16,13 +16,30 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
|
||||
call_with_stack.o
|
||||
|
||||
mmu-y := clear_user.o copy_page.o getuser.o putuser.o
|
||||
mmu-y += copy_from_user.o copy_to_user.o
|
||||
|
||||
# the code in uaccess.S is not preemption safe and
|
||||
# probably faster on ARMv3 only
|
||||
ifeq ($(CONFIG_PREEMPT),y)
|
||||
mmu-y += copy_from_user.o copy_to_user.o
|
||||
else
|
||||
ifneq ($(CONFIG_CPU_32v3),y)
|
||||
mmu-y += copy_from_user.o copy_to_user.o
|
||||
else
|
||||
mmu-y += uaccess.o
|
||||
endif
|
||||
endif
|
||||
|
||||
# using lib_ here won't override already available weak symbols
|
||||
obj-$(CONFIG_UACCESS_WITH_MEMCPY) += uaccess_with_memcpy.o
|
||||
|
||||
lib-$(CONFIG_MMU) += $(mmu-y)
|
||||
lib-y += io-readsw-armv4.o io-writesw-armv4.o
|
||||
lib-$(CONFIG_MMU) += $(mmu-y)
|
||||
|
||||
ifeq ($(CONFIG_CPU_32v3),y)
|
||||
lib-y += io-readsw-armv3.o io-writesw-armv3.o
|
||||
else
|
||||
lib-y += io-readsw-armv4.o io-writesw-armv4.o
|
||||
endif
|
||||
|
||||
lib-$(CONFIG_ARCH_RPC) += ecard.o io-acorn.o floppydma.o
|
||||
lib-$(CONFIG_ARCH_SHARK) += io-shark.o
|
||||
|
||||
|
||||
@ -59,6 +59,7 @@ void __init init_current_timer_delay(unsigned long freq)
|
||||
{
|
||||
pr_info("Switching to timer-based delay loop\n");
|
||||
lpj_fine = freq / HZ;
|
||||
loops_per_jiffy = lpj_fine;
|
||||
arm_delay_ops.delay = __timer_delay;
|
||||
arm_delay_ops.const_udelay = __timer_const_udelay;
|
||||
arm_delay_ops.udelay = __timer_udelay;
|
||||
|
||||
@ -16,8 +16,9 @@
|
||||
* __get_user_X
|
||||
*
|
||||
* Inputs: r0 contains the address
|
||||
* r1 contains the address limit, which must be preserved
|
||||
* Outputs: r0 is the error code
|
||||
* r2, r3 contains the zero-extended value
|
||||
* r2 contains the zero-extended value
|
||||
* lr corrupted
|
||||
*
|
||||
* No other registers must be altered. (see <asm/uaccess.h>
|
||||
@ -27,33 +28,39 @@
|
||||
* Note also that it is intended that __get_user_bad is not global.
|
||||
*/
|
||||
#include <linux/linkage.h>
|
||||
#include <asm/assembler.h>
|
||||
#include <asm/errno.h>
|
||||
#include <asm/domain.h>
|
||||
|
||||
ENTRY(__get_user_1)
|
||||
check_uaccess r0, 1, r1, r2, __get_user_bad
|
||||
1: TUSER(ldrb) r2, [r0]
|
||||
mov r0, #0
|
||||
mov pc, lr
|
||||
ENDPROC(__get_user_1)
|
||||
|
||||
ENTRY(__get_user_2)
|
||||
#ifdef CONFIG_THUMB2_KERNEL
|
||||
2: TUSER(ldrb) r2, [r0]
|
||||
3: TUSER(ldrb) r3, [r0, #1]
|
||||
check_uaccess r0, 2, r1, r2, __get_user_bad
|
||||
#ifdef CONFIG_CPU_USE_DOMAINS
|
||||
rb .req ip
|
||||
2: ldrbt r2, [r0], #1
|
||||
3: ldrbt rb, [r0], #0
|
||||
#else
|
||||
2: TUSER(ldrb) r2, [r0], #1
|
||||
3: TUSER(ldrb) r3, [r0]
|
||||
rb .req r0
|
||||
2: ldrb r2, [r0]
|
||||
3: ldrb rb, [r0, #1]
|
||||
#endif
|
||||
#ifndef __ARMEB__
|
||||
orr r2, r2, r3, lsl #8
|
||||
orr r2, r2, rb, lsl #8
|
||||
#else
|
||||
orr r2, r3, r2, lsl #8
|
||||
orr r2, rb, r2, lsl #8
|
||||
#endif
|
||||
mov r0, #0
|
||||
mov pc, lr
|
||||
ENDPROC(__get_user_2)
|
||||
|
||||
ENTRY(__get_user_4)
|
||||
check_uaccess r0, 4, r1, r2, __get_user_bad
|
||||
4: TUSER(ldr) r2, [r0]
|
||||
mov r0, #0
|
||||
mov pc, lr
|
||||
|
||||
106
arch/arm/lib/io-readsw-armv3.S
Normal file
106
arch/arm/lib/io-readsw-armv3.S
Normal file
@ -0,0 +1,106 @@
|
||||
/*
|
||||
* linux/arch/arm/lib/io-readsw-armv3.S
|
||||
*
|
||||
* Copyright (C) 1995-2000 Russell King
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
#include <linux/linkage.h>
|
||||
#include <asm/assembler.h>
|
||||
|
||||
.Linsw_bad_alignment:
|
||||
adr r0, .Linsw_bad_align_msg
|
||||
mov r2, lr
|
||||
b panic
|
||||
.Linsw_bad_align_msg:
|
||||
.asciz "insw: bad buffer alignment (0x%p, lr=0x%08lX)\n"
|
||||
.align
|
||||
|
||||
.Linsw_align: tst r1, #1
|
||||
bne .Linsw_bad_alignment
|
||||
|
||||
ldr r3, [r0]
|
||||
strb r3, [r1], #1
|
||||
mov r3, r3, lsr #8
|
||||
strb r3, [r1], #1
|
||||
|
||||
subs r2, r2, #1
|
||||
moveq pc, lr
|
||||
|
||||
ENTRY(__raw_readsw)
|
||||
teq r2, #0 @ do we have to check for the zero len?
|
||||
moveq pc, lr
|
||||
tst r1, #3
|
||||
bne .Linsw_align
|
||||
|
||||
.Linsw_aligned: mov ip, #0xff
|
||||
orr ip, ip, ip, lsl #8
|
||||
stmfd sp!, {r4, r5, r6, lr}
|
||||
|
||||
subs r2, r2, #8
|
||||
bmi .Lno_insw_8
|
||||
|
||||
.Linsw_8_lp: ldr r3, [r0]
|
||||
and r3, r3, ip
|
||||
ldr r4, [r0]
|
||||
orr r3, r3, r4, lsl #16
|
||||
|
||||
ldr r4, [r0]
|
||||
and r4, r4, ip
|
||||
ldr r5, [r0]
|
||||
orr r4, r4, r5, lsl #16
|
||||
|
||||
ldr r5, [r0]
|
||||
and r5, r5, ip
|
||||
ldr r6, [r0]
|
||||
orr r5, r5, r6, lsl #16
|
||||
|
||||
ldr r6, [r0]
|
||||
and r6, r6, ip
|
||||
ldr lr, [r0]
|
||||
orr r6, r6, lr, lsl #16
|
||||
|
||||
stmia r1!, {r3 - r6}
|
||||
|
||||
subs r2, r2, #8
|
||||
bpl .Linsw_8_lp
|
||||
|
||||
tst r2, #7
|
||||
ldmeqfd sp!, {r4, r5, r6, pc}
|
||||
|
||||
.Lno_insw_8: tst r2, #4
|
||||
beq .Lno_insw_4
|
||||
|
||||
ldr r3, [r0]
|
||||
and r3, r3, ip
|
||||
ldr r4, [r0]
|
||||
orr r3, r3, r4, lsl #16
|
||||
|
||||
ldr r4, [r0]
|
||||
and r4, r4, ip
|
||||
ldr r5, [r0]
|
||||
orr r4, r4, r5, lsl #16
|
||||
|
||||
stmia r1!, {r3, r4}
|
||||
|
||||
.Lno_insw_4: tst r2, #2
|
||||
beq .Lno_insw_2
|
||||
|
||||
ldr r3, [r0]
|
||||
and r3, r3, ip
|
||||
ldr r4, [r0]
|
||||
orr r3, r3, r4, lsl #16
|
||||
|
||||
str r3, [r1], #4
|
||||
|
||||
.Lno_insw_2: tst r2, #1
|
||||
ldrne r3, [r0]
|
||||
strneb r3, [r1], #1
|
||||
movne r3, r3, lsr #8
|
||||
strneb r3, [r1]
|
||||
|
||||
ldmfd sp!, {r4, r5, r6, pc}
|
||||
|
||||
|
||||
126
arch/arm/lib/io-writesw-armv3.S
Normal file
126
arch/arm/lib/io-writesw-armv3.S
Normal file
@ -0,0 +1,126 @@
|
||||
/*
|
||||
* linux/arch/arm/lib/io-writesw-armv3.S
|
||||
*
|
||||
* Copyright (C) 1995-2000 Russell King
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
#include <linux/linkage.h>
|
||||
#include <asm/assembler.h>
|
||||
|
||||
.Loutsw_bad_alignment:
|
||||
adr r0, .Loutsw_bad_align_msg
|
||||
mov r2, lr
|
||||
b panic
|
||||
.Loutsw_bad_align_msg:
|
||||
.asciz "outsw: bad buffer alignment (0x%p, lr=0x%08lX)\n"
|
||||
.align
|
||||
|
||||
.Loutsw_align: tst r1, #1
|
||||
bne .Loutsw_bad_alignment
|
||||
|
||||
add r1, r1, #2
|
||||
|
||||
ldr r3, [r1, #-4]
|
||||
mov r3, r3, lsr #16
|
||||
orr r3, r3, r3, lsl #16
|
||||
str r3, [r0]
|
||||
subs r2, r2, #1
|
||||
moveq pc, lr
|
||||
|
||||
ENTRY(__raw_writesw)
|
||||
teq r2, #0 @ do we have to check for the zero len?
|
||||
moveq pc, lr
|
||||
tst r1, #3
|
||||
bne .Loutsw_align
|
||||
|
||||
stmfd sp!, {r4, r5, r6, lr}
|
||||
|
||||
subs r2, r2, #8
|
||||
bmi .Lno_outsw_8
|
||||
|
||||
.Loutsw_8_lp: ldmia r1!, {r3, r4, r5, r6}
|
||||
|
||||
mov ip, r3, lsl #16
|
||||
orr ip, ip, ip, lsr #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r3, lsr #16
|
||||
orr ip, ip, ip, lsl #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r4, lsl #16
|
||||
orr ip, ip, ip, lsr #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r4, lsr #16
|
||||
orr ip, ip, ip, lsl #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r5, lsl #16
|
||||
orr ip, ip, ip, lsr #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r5, lsr #16
|
||||
orr ip, ip, ip, lsl #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r6, lsl #16
|
||||
orr ip, ip, ip, lsr #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r6, lsr #16
|
||||
orr ip, ip, ip, lsl #16
|
||||
str ip, [r0]
|
||||
|
||||
subs r2, r2, #8
|
||||
bpl .Loutsw_8_lp
|
||||
|
||||
tst r2, #7
|
||||
ldmeqfd sp!, {r4, r5, r6, pc}
|
||||
|
||||
.Lno_outsw_8: tst r2, #4
|
||||
beq .Lno_outsw_4
|
||||
|
||||
ldmia r1!, {r3, r4}
|
||||
|
||||
mov ip, r3, lsl #16
|
||||
orr ip, ip, ip, lsr #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r3, lsr #16
|
||||
orr ip, ip, ip, lsl #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r4, lsl #16
|
||||
orr ip, ip, ip, lsr #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r4, lsr #16
|
||||
orr ip, ip, ip, lsl #16
|
||||
str ip, [r0]
|
||||
|
||||
.Lno_outsw_4: tst r2, #2
|
||||
beq .Lno_outsw_2
|
||||
|
||||
ldr r3, [r1], #4
|
||||
|
||||
mov ip, r3, lsl #16
|
||||
orr ip, ip, ip, lsr #16
|
||||
str ip, [r0]
|
||||
|
||||
mov ip, r3, lsr #16
|
||||
orr ip, ip, ip, lsl #16
|
||||
str ip, [r0]
|
||||
|
||||
.Lno_outsw_2: tst r2, #1
|
||||
|
||||
ldrne r3, [r1]
|
||||
|
||||
movne ip, r3, lsl #16
|
||||
orrne ip, ip, ip, lsr #16
|
||||
strne ip, [r0]
|
||||
|
||||
ldmfd sp!, {r4, r5, r6, pc}
|
||||
@ -16,6 +16,7 @@
|
||||
* __put_user_X
|
||||
*
|
||||
* Inputs: r0 contains the address
|
||||
* r1 contains the address limit, which must be preserved
|
||||
* r2, r3 contains the value
|
||||
* Outputs: r0 is the error code
|
||||
* lr corrupted
|
||||
@ -27,16 +28,19 @@
|
||||
* Note also that it is intended that __put_user_bad is not global.
|
||||
*/
|
||||
#include <linux/linkage.h>
|
||||
#include <asm/assembler.h>
|
||||
#include <asm/errno.h>
|
||||
#include <asm/domain.h>
|
||||
|
||||
ENTRY(__put_user_1)
|
||||
check_uaccess r0, 1, r1, ip, __put_user_bad
|
||||
1: TUSER(strb) r2, [r0]
|
||||
mov r0, #0
|
||||
mov pc, lr
|
||||
ENDPROC(__put_user_1)
|
||||
|
||||
ENTRY(__put_user_2)
|
||||
check_uaccess r0, 2, r1, ip, __put_user_bad
|
||||
mov ip, r2, lsr #8
|
||||
#ifdef CONFIG_THUMB2_KERNEL
|
||||
#ifndef __ARMEB__
|
||||
@ -60,12 +64,14 @@ ENTRY(__put_user_2)
|
||||
ENDPROC(__put_user_2)
|
||||
|
||||
ENTRY(__put_user_4)
|
||||
check_uaccess r0, 4, r1, ip, __put_user_bad
|
||||
4: TUSER(str) r2, [r0]
|
||||
mov r0, #0
|
||||
mov pc, lr
|
||||
ENDPROC(__put_user_4)
|
||||
|
||||
ENTRY(__put_user_8)
|
||||
check_uaccess r0, 8, r1, ip, __put_user_bad
|
||||
#ifdef CONFIG_THUMB2_KERNEL
|
||||
5: TUSER(str) r2, [r0]
|
||||
6: TUSER(str) r3, [r0, #4]
|
||||
|
||||
564
arch/arm/lib/uaccess.S
Normal file
564
arch/arm/lib/uaccess.S
Normal file
@ -0,0 +1,564 @@
|
||||
/*
|
||||
* linux/arch/arm/lib/uaccess.S
|
||||
*
|
||||
* Copyright (C) 1995, 1996,1997,1998 Russell King
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* Routines to block copy data to/from user memory
|
||||
* These are highly optimised both for the 4k page size
|
||||
* and for various alignments.
|
||||
*/
|
||||
#include <linux/linkage.h>
|
||||
#include <asm/assembler.h>
|
||||
#include <asm/errno.h>
|
||||
#include <asm/domain.h>
|
||||
|
||||
.text
|
||||
|
||||
#define PAGE_SHIFT 12
|
||||
|
||||
/* Prototype: int __copy_to_user(void *to, const char *from, size_t n)
|
||||
* Purpose : copy a block to user memory from kernel memory
|
||||
* Params : to - user memory
|
||||
* : from - kernel memory
|
||||
* : n - number of bytes to copy
|
||||
* Returns : Number of bytes NOT copied.
|
||||
*/
|
||||
|
||||
.Lc2u_dest_not_aligned:
|
||||
rsb ip, ip, #4
|
||||
cmp ip, #2
|
||||
ldrb r3, [r1], #1
|
||||
USER( TUSER( strb) r3, [r0], #1) @ May fault
|
||||
ldrgeb r3, [r1], #1
|
||||
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
|
||||
ldrgtb r3, [r1], #1
|
||||
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
|
||||
sub r2, r2, ip
|
||||
b .Lc2u_dest_aligned
|
||||
|
||||
ENTRY(__copy_to_user)
|
||||
stmfd sp!, {r2, r4 - r7, lr}
|
||||
cmp r2, #4
|
||||
blt .Lc2u_not_enough
|
||||
ands ip, r0, #3
|
||||
bne .Lc2u_dest_not_aligned
|
||||
.Lc2u_dest_aligned:
|
||||
|
||||
ands ip, r1, #3
|
||||
bne .Lc2u_src_not_aligned
|
||||
/*
|
||||
* Seeing as there has to be at least 8 bytes to copy, we can
|
||||
* copy one word, and force a user-mode page fault...
|
||||
*/
|
||||
|
||||
.Lc2u_0fupi: subs r2, r2, #4
|
||||
addmi ip, r2, #4
|
||||
bmi .Lc2u_0nowords
|
||||
ldr r3, [r1], #4
|
||||
USER( TUSER( str) r3, [r0], #4) @ May fault
|
||||
mov ip, r0, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction
|
||||
rsb ip, ip, #0
|
||||
movs ip, ip, lsr #32 - PAGE_SHIFT
|
||||
beq .Lc2u_0fupi
|
||||
/*
|
||||
* ip = max no. of bytes to copy before needing another "strt" insn
|
||||
*/
|
||||
cmp r2, ip
|
||||
movlt ip, r2
|
||||
sub r2, r2, ip
|
||||
subs ip, ip, #32
|
||||
blt .Lc2u_0rem8lp
|
||||
|
||||
.Lc2u_0cpy8lp: ldmia r1!, {r3 - r6}
|
||||
stmia r0!, {r3 - r6} @ Shouldnt fault
|
||||
ldmia r1!, {r3 - r6}
|
||||
subs ip, ip, #32
|
||||
stmia r0!, {r3 - r6} @ Shouldnt fault
|
||||
bpl .Lc2u_0cpy8lp
|
||||
|
||||
.Lc2u_0rem8lp: cmn ip, #16
|
||||
ldmgeia r1!, {r3 - r6}
|
||||
stmgeia r0!, {r3 - r6} @ Shouldnt fault
|
||||
tst ip, #8
|
||||
ldmneia r1!, {r3 - r4}
|
||||
stmneia r0!, {r3 - r4} @ Shouldnt fault
|
||||
tst ip, #4
|
||||
ldrne r3, [r1], #4
|
||||
TUSER( strne) r3, [r0], #4 @ Shouldnt fault
|
||||
ands ip, ip, #3
|
||||
beq .Lc2u_0fupi
|
||||
.Lc2u_0nowords: teq ip, #0
|
||||
beq .Lc2u_finished
|
||||
.Lc2u_nowords: cmp ip, #2
|
||||
ldrb r3, [r1], #1
|
||||
USER( TUSER( strb) r3, [r0], #1) @ May fault
|
||||
ldrgeb r3, [r1], #1
|
||||
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
|
||||
ldrgtb r3, [r1], #1
|
||||
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
|
||||
b .Lc2u_finished
|
||||
|
||||
.Lc2u_not_enough:
|
||||
movs ip, r2
|
||||
bne .Lc2u_nowords
|
||||
.Lc2u_finished: mov r0, #0
|
||||
ldmfd sp!, {r2, r4 - r7, pc}
|
||||
|
||||
.Lc2u_src_not_aligned:
|
||||
bic r1, r1, #3
|
||||
ldr r7, [r1], #4
|
||||
cmp ip, #2
|
||||
bgt .Lc2u_3fupi
|
||||
beq .Lc2u_2fupi
|
||||
.Lc2u_1fupi: subs r2, r2, #4
|
||||
addmi ip, r2, #4
|
||||
bmi .Lc2u_1nowords
|
||||
mov r3, r7, pull #8
|
||||
ldr r7, [r1], #4
|
||||
orr r3, r3, r7, push #24
|
||||
USER( TUSER( str) r3, [r0], #4) @ May fault
|
||||
mov ip, r0, lsl #32 - PAGE_SHIFT
|
||||
rsb ip, ip, #0
|
||||
movs ip, ip, lsr #32 - PAGE_SHIFT
|
||||
beq .Lc2u_1fupi
|
||||
cmp r2, ip
|
||||
movlt ip, r2
|
||||
sub r2, r2, ip
|
||||
subs ip, ip, #16
|
||||
blt .Lc2u_1rem8lp
|
||||
|
||||
.Lc2u_1cpy8lp: mov r3, r7, pull #8
|
||||
ldmia r1!, {r4 - r7}
|
||||
subs ip, ip, #16
|
||||
orr r3, r3, r4, push #24
|
||||
mov r4, r4, pull #8
|
||||
orr r4, r4, r5, push #24
|
||||
mov r5, r5, pull #8
|
||||
orr r5, r5, r6, push #24
|
||||
mov r6, r6, pull #8
|
||||
orr r6, r6, r7, push #24
|
||||
stmia r0!, {r3 - r6} @ Shouldnt fault
|
||||
bpl .Lc2u_1cpy8lp
|
||||
|
||||
.Lc2u_1rem8lp: tst ip, #8
|
||||
movne r3, r7, pull #8
|
||||
ldmneia r1!, {r4, r7}
|
||||
orrne r3, r3, r4, push #24
|
||||
movne r4, r4, pull #8
|
||||
orrne r4, r4, r7, push #24
|
||||
stmneia r0!, {r3 - r4} @ Shouldnt fault
|
||||
tst ip, #4
|
||||
movne r3, r7, pull #8
|
||||
ldrne r7, [r1], #4
|
||||
orrne r3, r3, r7, push #24
|
||||
TUSER( strne) r3, [r0], #4 @ Shouldnt fault
|
||||
ands ip, ip, #3
|
||||
beq .Lc2u_1fupi
|
||||
.Lc2u_1nowords: mov r3, r7, get_byte_1
|
||||
teq ip, #0
|
||||
beq .Lc2u_finished
|
||||
cmp ip, #2
|
||||
USER( TUSER( strb) r3, [r0], #1) @ May fault
|
||||
movge r3, r7, get_byte_2
|
||||
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
|
||||
movgt r3, r7, get_byte_3
|
||||
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
|
||||
b .Lc2u_finished
|
||||
|
||||
.Lc2u_2fupi: subs r2, r2, #4
|
||||
addmi ip, r2, #4
|
||||
bmi .Lc2u_2nowords
|
||||
mov r3, r7, pull #16
|
||||
ldr r7, [r1], #4
|
||||
orr r3, r3, r7, push #16
|
||||
USER( TUSER( str) r3, [r0], #4) @ May fault
|
||||
mov ip, r0, lsl #32 - PAGE_SHIFT
|
||||
rsb ip, ip, #0
|
||||
movs ip, ip, lsr #32 - PAGE_SHIFT
|
||||
beq .Lc2u_2fupi
|
||||
cmp r2, ip
|
||||
movlt ip, r2
|
||||
sub r2, r2, ip
|
||||
subs ip, ip, #16
|
||||
blt .Lc2u_2rem8lp
|
||||
|
||||
.Lc2u_2cpy8lp: mov r3, r7, pull #16
|
||||
ldmia r1!, {r4 - r7}
|
||||
subs ip, ip, #16
|
||||
orr r3, r3, r4, push #16
|
||||
mov r4, r4, pull #16
|
||||
orr r4, r4, r5, push #16
|
||||
mov r5, r5, pull #16
|
||||
orr r5, r5, r6, push #16
|
||||
mov r6, r6, pull #16
|
||||
orr r6, r6, r7, push #16
|
||||
stmia r0!, {r3 - r6} @ Shouldnt fault
|
||||
bpl .Lc2u_2cpy8lp
|
||||
|
||||
.Lc2u_2rem8lp: tst ip, #8
|
||||
movne r3, r7, pull #16
|
||||
ldmneia r1!, {r4, r7}
|
||||
orrne r3, r3, r4, push #16
|
||||
movne r4, r4, pull #16
|
||||
orrne r4, r4, r7, push #16
|
||||
stmneia r0!, {r3 - r4} @ Shouldnt fault
|
||||
tst ip, #4
|
||||
movne r3, r7, pull #16
|
||||
ldrne r7, [r1], #4
|
||||
orrne r3, r3, r7, push #16
|
||||
TUSER( strne) r3, [r0], #4 @ Shouldnt fault
|
||||
ands ip, ip, #3
|
||||
beq .Lc2u_2fupi
|
||||
.Lc2u_2nowords: mov r3, r7, get_byte_2
|
||||
teq ip, #0
|
||||
beq .Lc2u_finished
|
||||
cmp ip, #2
|
||||
USER( TUSER( strb) r3, [r0], #1) @ May fault
|
||||
movge r3, r7, get_byte_3
|
||||
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
|
||||
ldrgtb r3, [r1], #0
|
||||
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
|
||||
b .Lc2u_finished
|
||||
|
||||
.Lc2u_3fupi: subs r2, r2, #4
|
||||
addmi ip, r2, #4
|
||||
bmi .Lc2u_3nowords
|
||||
mov r3, r7, pull #24
|
||||
ldr r7, [r1], #4
|
||||
orr r3, r3, r7, push #8
|
||||
USER( TUSER( str) r3, [r0], #4) @ May fault
|
||||
mov ip, r0, lsl #32 - PAGE_SHIFT
|
||||
rsb ip, ip, #0
|
||||
movs ip, ip, lsr #32 - PAGE_SHIFT
|
||||
beq .Lc2u_3fupi
|
||||
cmp r2, ip
|
||||
movlt ip, r2
|
||||
sub r2, r2, ip
|
||||
subs ip, ip, #16
|
||||
blt .Lc2u_3rem8lp
|
||||
|
||||
.Lc2u_3cpy8lp: mov r3, r7, pull #24
|
||||
ldmia r1!, {r4 - r7}
|
||||
subs ip, ip, #16
|
||||
orr r3, r3, r4, push #8
|
||||
mov r4, r4, pull #24
|
||||
orr r4, r4, r5, push #8
|
||||
mov r5, r5, pull #24
|
||||
orr r5, r5, r6, push #8
|
||||
mov r6, r6, pull #24
|
||||
orr r6, r6, r7, push #8
|
||||
stmia r0!, {r3 - r6} @ Shouldnt fault
|
||||
bpl .Lc2u_3cpy8lp
|
||||
|
||||
.Lc2u_3rem8lp: tst ip, #8
|
||||
movne r3, r7, pull #24
|
||||
ldmneia r1!, {r4, r7}
|
||||
orrne r3, r3, r4, push #8
|
||||
movne r4, r4, pull #24
|
||||
orrne r4, r4, r7, push #8
|
||||
stmneia r0!, {r3 - r4} @ Shouldnt fault
|
||||
tst ip, #4
|
||||
movne r3, r7, pull #24
|
||||
ldrne r7, [r1], #4
|
||||
orrne r3, r3, r7, push #8
|
||||
TUSER( strne) r3, [r0], #4 @ Shouldnt fault
|
||||
ands ip, ip, #3
|
||||
beq .Lc2u_3fupi
|
||||
.Lc2u_3nowords: mov r3, r7, get_byte_3
|
||||
teq ip, #0
|
||||
beq .Lc2u_finished
|
||||
cmp ip, #2
|
||||
USER( TUSER( strb) r3, [r0], #1) @ May fault
|
||||
ldrgeb r3, [r1], #1
|
||||
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
|
||||
ldrgtb r3, [r1], #0
|
||||
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
|
||||
b .Lc2u_finished
|
||||
ENDPROC(__copy_to_user)
|
||||
|
||||
.pushsection .fixup,"ax"
|
||||
.align 0
|
||||
9001: ldmfd sp!, {r0, r4 - r7, pc}
|
||||
.popsection
|
||||
|
||||
/* Prototype: unsigned long __copy_from_user(void *to,const void *from,unsigned long n);
|
||||
* Purpose : copy a block from user memory to kernel memory
|
||||
* Params : to - kernel memory
|
||||
* : from - user memory
|
||||
* : n - number of bytes to copy
|
||||
* Returns : Number of bytes NOT copied.
|
||||
*/
|
||||
.Lcfu_dest_not_aligned:
|
||||
rsb ip, ip, #4
|
||||
cmp ip, #2
|
||||
USER( TUSER( ldrb) r3, [r1], #1) @ May fault
|
||||
strb r3, [r0], #1
|
||||
USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault
|
||||
strgeb r3, [r0], #1
|
||||
USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault
|
||||
strgtb r3, [r0], #1
|
||||
sub r2, r2, ip
|
||||
b .Lcfu_dest_aligned
|
||||
|
||||
ENTRY(__copy_from_user)
|
||||
stmfd sp!, {r0, r2, r4 - r7, lr}
|
||||
cmp r2, #4
|
||||
blt .Lcfu_not_enough
|
||||
ands ip, r0, #3
|
||||
bne .Lcfu_dest_not_aligned
|
||||
.Lcfu_dest_aligned:
|
||||
ands ip, r1, #3
|
||||
bne .Lcfu_src_not_aligned
|
||||
|
||||
/*
|
||||
* Seeing as there has to be at least 8 bytes to copy, we can
|
||||
* copy one word, and force a user-mode page fault...
|
||||
*/
|
||||
|
||||
.Lcfu_0fupi: subs r2, r2, #4
|
||||
addmi ip, r2, #4
|
||||
bmi .Lcfu_0nowords
|
||||
USER( TUSER( ldr) r3, [r1], #4)
|
||||
str r3, [r0], #4
|
||||
mov ip, r1, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction
|
||||
rsb ip, ip, #0
|
||||
movs ip, ip, lsr #32 - PAGE_SHIFT
|
||||
beq .Lcfu_0fupi
|
||||
/*
|
||||
* ip = max no. of bytes to copy before needing another "strt" insn
|
||||
*/
|
||||
cmp r2, ip
|
||||
movlt ip, r2
|
||||
sub r2, r2, ip
|
||||
subs ip, ip, #32
|
||||
blt .Lcfu_0rem8lp
|
||||
|
||||
.Lcfu_0cpy8lp: ldmia r1!, {r3 - r6} @ Shouldnt fault
|
||||
stmia r0!, {r3 - r6}
|
||||
ldmia r1!, {r3 - r6} @ Shouldnt fault
|
||||
subs ip, ip, #32
|
||||
stmia r0!, {r3 - r6}
|
||||
bpl .Lcfu_0cpy8lp
|
||||
|
||||
.Lcfu_0rem8lp: cmn ip, #16
|
||||
ldmgeia r1!, {r3 - r6} @ Shouldnt fault
|
||||
stmgeia r0!, {r3 - r6}
|
||||
tst ip, #8
|
||||
ldmneia r1!, {r3 - r4} @ Shouldnt fault
|
||||
stmneia r0!, {r3 - r4}
|
||||
tst ip, #4
|
||||
TUSER( ldrne) r3, [r1], #4 @ Shouldnt fault
|
||||
strne r3, [r0], #4
|
||||
ands ip, ip, #3
|
||||
beq .Lcfu_0fupi
|
||||
.Lcfu_0nowords: teq ip, #0
|
||||
beq .Lcfu_finished
|
||||
.Lcfu_nowords: cmp ip, #2
|
||||
USER( TUSER( ldrb) r3, [r1], #1) @ May fault
|
||||
strb r3, [r0], #1
|
||||
USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault
|
||||
strgeb r3, [r0], #1
|
||||
USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault
|
||||
strgtb r3, [r0], #1
|
||||
b .Lcfu_finished
|
||||
|
||||
.Lcfu_not_enough:
|
||||
movs ip, r2
|
||||
bne .Lcfu_nowords
|
||||
.Lcfu_finished: mov r0, #0
|
||||
add sp, sp, #8
|
||||
ldmfd sp!, {r4 - r7, pc}
|
||||
|
||||
.Lcfu_src_not_aligned:
|
||||
bic r1, r1, #3
|
||||
USER( TUSER( ldr) r7, [r1], #4) @ May fault
|
||||
cmp ip, #2
|
||||
bgt .Lcfu_3fupi
|
||||
beq .Lcfu_2fupi
|
||||
.Lcfu_1fupi: subs r2, r2, #4
|
||||
addmi ip, r2, #4
|
||||
bmi .Lcfu_1nowords
|
||||
mov r3, r7, pull #8
|
||||
USER( TUSER( ldr) r7, [r1], #4) @ May fault
|
||||
orr r3, r3, r7, push #24
|
||||
str r3, [r0], #4
|
||||
mov ip, r1, lsl #32 - PAGE_SHIFT
|
||||
rsb ip, ip, #0
|
||||
movs ip, ip, lsr #32 - PAGE_SHIFT
|
||||
beq .Lcfu_1fupi
|
||||
cmp r2, ip
|
||||
movlt ip, r2
|
||||
sub r2, r2, ip
|
||||
subs ip, ip, #16
|
||||
blt .Lcfu_1rem8lp
|
||||
|
||||
.Lcfu_1cpy8lp: mov r3, r7, pull #8
|
||||
ldmia r1!, {r4 - r7} @ Shouldnt fault
|
||||
subs ip, ip, #16
|
||||
orr r3, r3, r4, push #24
|
||||
mov r4, r4, pull #8
|
||||
orr r4, r4, r5, push #24
|
||||
mov r5, r5, pull #8
|
||||
orr r5, r5, r6, push #24
|
||||
mov r6, r6, pull #8
|
||||
orr r6, r6, r7, push #24
|
||||
stmia r0!, {r3 - r6}
|
||||
bpl .Lcfu_1cpy8lp
|
||||
|
||||
.Lcfu_1rem8lp: tst ip, #8
|
||||
movne r3, r7, pull #8
|
||||
ldmneia r1!, {r4, r7} @ Shouldnt fault
|
||||
orrne r3, r3, r4, push #24
|
||||
movne r4, r4, pull #8
|
||||
orrne r4, r4, r7, push #24
|
||||
stmneia r0!, {r3 - r4}
|
||||
tst ip, #4
|
||||
movne r3, r7, pull #8
|
||||
USER( TUSER( ldrne) r7, [r1], #4) @ May fault
|
||||
orrne r3, r3, r7, push #24
|
||||
strne r3, [r0], #4
|
||||
ands ip, ip, #3
|
||||
beq .Lcfu_1fupi
|
||||
.Lcfu_1nowords: mov r3, r7, get_byte_1
|
||||
teq ip, #0
|
||||
beq .Lcfu_finished
|
||||
cmp ip, #2
|
||||
strb r3, [r0], #1
|
||||
movge r3, r7, get_byte_2
|
||||
strgeb r3, [r0], #1
|
||||
movgt r3, r7, get_byte_3
|
||||
strgtb r3, [r0], #1
|
||||
b .Lcfu_finished
|
||||
|
||||
.Lcfu_2fupi: subs r2, r2, #4
|
||||
addmi ip, r2, #4
|
||||
bmi .Lcfu_2nowords
|
||||
mov r3, r7, pull #16
|
||||
USER( TUSER( ldr) r7, [r1], #4) @ May fault
|
||||
orr r3, r3, r7, push #16
|
||||
str r3, [r0], #4
|
||||
mov ip, r1, lsl #32 - PAGE_SHIFT
|
||||
rsb ip, ip, #0
|
||||
movs ip, ip, lsr #32 - PAGE_SHIFT
|
||||
beq .Lcfu_2fupi
|
||||
cmp r2, ip
|
||||
movlt ip, r2
|
||||
sub r2, r2, ip
|
||||
subs ip, ip, #16
|
||||
blt .Lcfu_2rem8lp
|
||||
|
||||
|
||||
.Lcfu_2cpy8lp: mov r3, r7, pull #16
|
||||
ldmia r1!, {r4 - r7} @ Shouldnt fault
|
||||
subs ip, ip, #16
|
||||
orr r3, r3, r4, push #16
|
||||
mov r4, r4, pull #16
|
||||
orr r4, r4, r5, push #16
|
||||
mov r5, r5, pull #16
|
||||
orr r5, r5, r6, push #16
|
||||
mov r6, r6, pull #16
|
||||
orr r6, r6, r7, push #16
|
||||
stmia r0!, {r3 - r6}
|
||||
bpl .Lcfu_2cpy8lp
|
||||
|
||||
.Lcfu_2rem8lp: tst ip, #8
|
||||
movne r3, r7, pull #16
|
||||
ldmneia r1!, {r4, r7} @ Shouldnt fault
|
||||
orrne r3, r3, r4, push #16
|
||||
movne r4, r4, pull #16
|
||||
orrne r4, r4, r7, push #16
|
||||
stmneia r0!, {r3 - r4}
|
||||
tst ip, #4
|
||||
movne r3, r7, pull #16
|
||||
USER( TUSER( ldrne) r7, [r1], #4) @ May fault
|
||||
orrne r3, r3, r7, push #16
|
||||
strne r3, [r0], #4
|
||||
ands ip, ip, #3
|
||||
beq .Lcfu_2fupi
|
||||
.Lcfu_2nowords: mov r3, r7, get_byte_2
|
||||
teq ip, #0
|
||||
beq .Lcfu_finished
|
||||
cmp ip, #2
|
||||
strb r3, [r0], #1
|
||||
movge r3, r7, get_byte_3
|
||||
strgeb r3, [r0], #1
|
||||
USER( TUSER( ldrgtb) r3, [r1], #0) @ May fault
|
||||
strgtb r3, [r0], #1
|
||||
b .Lcfu_finished
|
||||
|
||||
.Lcfu_3fupi: subs r2, r2, #4
|
||||
addmi ip, r2, #4
|
||||
bmi .Lcfu_3nowords
|
||||
mov r3, r7, pull #24
|
||||
USER( TUSER( ldr) r7, [r1], #4) @ May fault
|
||||
orr r3, r3, r7, push #8
|
||||
str r3, [r0], #4
|
||||
mov ip, r1, lsl #32 - PAGE_SHIFT
|
||||
rsb ip, ip, #0
|
||||
movs ip, ip, lsr #32 - PAGE_SHIFT
|
||||
beq .Lcfu_3fupi
|
||||
cmp r2, ip
|
||||
movlt ip, r2
|
||||
sub r2, r2, ip
|
||||
subs ip, ip, #16
|
||||
blt .Lcfu_3rem8lp
|
||||
|
||||
.Lcfu_3cpy8lp: mov r3, r7, pull #24
|
||||
ldmia r1!, {r4 - r7} @ Shouldnt fault
|
||||
orr r3, r3, r4, push #8
|
||||
mov r4, r4, pull #24
|
||||
orr r4, r4, r5, push #8
|
||||
mov r5, r5, pull #24
|
||||
orr r5, r5, r6, push #8
|
||||
mov r6, r6, pull #24
|
||||
orr r6, r6, r7, push #8
|
||||
stmia r0!, {r3 - r6}
|
||||
subs ip, ip, #16
|
||||
bpl .Lcfu_3cpy8lp
|
||||
|
||||
.Lcfu_3rem8lp: tst ip, #8
|
||||
movne r3, r7, pull #24
|
||||
ldmneia r1!, {r4, r7} @ Shouldnt fault
|
||||
orrne r3, r3, r4, push #8
|
||||
movne r4, r4, pull #24
|
||||
orrne r4, r4, r7, push #8
|
||||
stmneia r0!, {r3 - r4}
|
||||
tst ip, #4
|
||||
movne r3, r7, pull #24
|
||||
USER( TUSER( ldrne) r7, [r1], #4) @ May fault
|
||||
orrne r3, r3, r7, push #8
|
||||
strne r3, [r0], #4
|
||||
ands ip, ip, #3
|
||||
beq .Lcfu_3fupi
|
||||
.Lcfu_3nowords: mov r3, r7, get_byte_3
|
||||
teq ip, #0
|
||||
beq .Lcfu_finished
|
||||
cmp ip, #2
|
||||
strb r3, [r0], #1
|
||||
USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault
|
||||
strgeb r3, [r0], #1
|
||||
USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault
|
||||
strgtb r3, [r0], #1
|
||||
b .Lcfu_finished
|
||||
ENDPROC(__copy_from_user)
|
||||
|
||||
.pushsection .fixup,"ax"
|
||||
.align 0
|
||||
/*
|
||||
* We took an exception. r0 contains a pointer to
|
||||
* the byte not copied.
|
||||
*/
|
||||
9001: ldr r2, [sp], #4 @ void *to
|
||||
sub r2, r0, r2 @ bytes copied
|
||||
ldr r1, [sp], #4 @ unsigned long count
|
||||
subs r4, r1, r2 @ bytes left to copy
|
||||
movne r1, r4
|
||||
blne __memzero
|
||||
mov r0, r4
|
||||
ldmfd sp!, {r4 - r7, pc}
|
||||
.popsection
|
||||
|
||||
@ -197,7 +197,7 @@ void __init at91rm9200_timer_init(void)
|
||||
at91_st_read(AT91_ST_SR);
|
||||
|
||||
/* Make IRQs happen for the system timer */
|
||||
setup_irq(AT91_ID_SYS, &at91rm9200_timer_irq);
|
||||
setup_irq(NR_IRQS_LEGACY + AT91_ID_SYS, &at91rm9200_timer_irq);
|
||||
|
||||
/* The 32KiHz "Slow Clock" (tick every 30517.58 nanoseconds) is used
|
||||
* directly for the clocksource and all clockevents, after adjusting
|
||||
|
||||
@ -726,6 +726,8 @@ static struct resource rtt_resources[] = {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
@ -744,10 +746,12 @@ static void __init at91_add_device_rtt_rtc(void)
|
||||
* The second resource is needed:
|
||||
* GPBR will serve as the storage for RTC time offset
|
||||
*/
|
||||
at91sam9260_rtt_device.num_resources = 2;
|
||||
at91sam9260_rtt_device.num_resources = 3;
|
||||
rtt_resources[1].start = AT91SAM9260_BASE_GPBR +
|
||||
4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
|
||||
rtt_resources[1].end = rtt_resources[1].start + 3;
|
||||
rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
}
|
||||
#else
|
||||
static void __init at91_add_device_rtt_rtc(void)
|
||||
|
||||
@ -609,6 +609,8 @@ static struct resource rtt_resources[] = {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_IRQ,
|
||||
}
|
||||
};
|
||||
|
||||
@ -626,10 +628,12 @@ static void __init at91_add_device_rtt_rtc(void)
|
||||
* The second resource is needed:
|
||||
* GPBR will serve as the storage for RTC time offset
|
||||
*/
|
||||
at91sam9261_rtt_device.num_resources = 2;
|
||||
at91sam9261_rtt_device.num_resources = 3;
|
||||
rtt_resources[1].start = AT91SAM9261_BASE_GPBR +
|
||||
4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
|
||||
rtt_resources[1].end = rtt_resources[1].start + 3;
|
||||
rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
}
|
||||
#else
|
||||
static void __init at91_add_device_rtt_rtc(void)
|
||||
|
||||
@ -990,6 +990,8 @@ static struct resource rtt0_resources[] = {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_IRQ,
|
||||
}
|
||||
};
|
||||
|
||||
@ -1006,6 +1008,8 @@ static struct resource rtt1_resources[] = {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_IRQ,
|
||||
}
|
||||
};
|
||||
|
||||
@ -1027,14 +1031,14 @@ static void __init at91_add_device_rtt_rtc(void)
|
||||
* The second resource is needed only for the chosen RTT:
|
||||
* GPBR will serve as the storage for RTC time offset
|
||||
*/
|
||||
at91sam9263_rtt0_device.num_resources = 2;
|
||||
at91sam9263_rtt0_device.num_resources = 3;
|
||||
at91sam9263_rtt1_device.num_resources = 1;
|
||||
pdev = &at91sam9263_rtt0_device;
|
||||
r = rtt0_resources;
|
||||
break;
|
||||
case 1:
|
||||
at91sam9263_rtt0_device.num_resources = 1;
|
||||
at91sam9263_rtt1_device.num_resources = 2;
|
||||
at91sam9263_rtt1_device.num_resources = 3;
|
||||
pdev = &at91sam9263_rtt1_device;
|
||||
r = rtt1_resources;
|
||||
break;
|
||||
@ -1047,6 +1051,8 @@ static void __init at91_add_device_rtt_rtc(void)
|
||||
pdev->name = "rtc-at91sam9";
|
||||
r[1].start = AT91SAM9263_BASE_GPBR + 4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
|
||||
r[1].end = r[1].start + 3;
|
||||
r[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
r[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
}
|
||||
#else
|
||||
static void __init at91_add_device_rtt_rtc(void)
|
||||
|
||||
@ -1293,6 +1293,8 @@ static struct resource rtt_resources[] = {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_IRQ,
|
||||
}
|
||||
};
|
||||
|
||||
@ -1310,10 +1312,12 @@ static void __init at91_add_device_rtt_rtc(void)
|
||||
* The second resource is needed:
|
||||
* GPBR will serve as the storage for RTC time offset
|
||||
*/
|
||||
at91sam9g45_rtt_device.num_resources = 2;
|
||||
at91sam9g45_rtt_device.num_resources = 3;
|
||||
rtt_resources[1].start = AT91SAM9G45_BASE_GPBR +
|
||||
4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
|
||||
rtt_resources[1].end = rtt_resources[1].start + 3;
|
||||
rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
}
|
||||
#else
|
||||
static void __init at91_add_device_rtt_rtc(void)
|
||||
|
||||
@ -688,6 +688,8 @@ static struct resource rtt_resources[] = {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_MEM,
|
||||
}, {
|
||||
.flags = IORESOURCE_IRQ,
|
||||
}
|
||||
};
|
||||
|
||||
@ -705,10 +707,12 @@ static void __init at91_add_device_rtt_rtc(void)
|
||||
* The second resource is needed:
|
||||
* GPBR will serve as the storage for RTC time offset
|
||||
*/
|
||||
at91sam9rl_rtt_device.num_resources = 2;
|
||||
at91sam9rl_rtt_device.num_resources = 3;
|
||||
rtt_resources[1].start = AT91SAM9RL_BASE_GPBR +
|
||||
4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
|
||||
rtt_resources[1].end = rtt_resources[1].start + 3;
|
||||
rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
|
||||
}
|
||||
#else
|
||||
static void __init at91_add_device_rtt_rtc(void)
|
||||
|
||||
@ -63,6 +63,12 @@ EXPORT_SYMBOL_GPL(at91_pmc_base);
|
||||
|
||||
#define cpu_has_300M_plla() (cpu_is_at91sam9g10())
|
||||
|
||||
#define cpu_has_240M_plla() (cpu_is_at91sam9261() \
|
||||
|| cpu_is_at91sam9263() \
|
||||
|| cpu_is_at91sam9rl())
|
||||
|
||||
#define cpu_has_210M_plla() (cpu_is_at91sam9260())
|
||||
|
||||
#define cpu_has_pllb() (!(cpu_is_at91sam9rl() \
|
||||
|| cpu_is_at91sam9g45() \
|
||||
|| cpu_is_at91sam9x5() \
|
||||
@ -706,6 +712,12 @@ static int __init at91_pmc_init(unsigned long main_clock)
|
||||
} else if (cpu_has_800M_plla()) {
|
||||
if (plla.rate_hz > 800000000)
|
||||
pll_overclock = true;
|
||||
} else if (cpu_has_240M_plla()) {
|
||||
if (plla.rate_hz > 240000000)
|
||||
pll_overclock = true;
|
||||
} else if (cpu_has_210M_plla()) {
|
||||
if (plla.rate_hz > 210000000)
|
||||
pll_overclock = true;
|
||||
} else {
|
||||
if (plla.rate_hz > 209000000)
|
||||
pll_overclock = true;
|
||||
|
||||
@ -102,7 +102,8 @@ void __init dove_ehci1_init(void)
|
||||
void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
|
||||
{
|
||||
orion_ge00_init(eth_data, DOVE_GE00_PHYS_BASE,
|
||||
IRQ_DOVE_GE00_SUM, IRQ_DOVE_GE00_ERR);
|
||||
IRQ_DOVE_GE00_SUM, IRQ_DOVE_GE00_ERR,
|
||||
1600);
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
|
||||
@ -42,6 +42,7 @@
|
||||
#include <plat/backlight.h>
|
||||
#include <plat/fb.h>
|
||||
#include <plat/mfc.h>
|
||||
#include <plat/hdmi.h>
|
||||
|
||||
#include <mach/ohci.h>
|
||||
#include <mach/map.h>
|
||||
@ -734,6 +735,11 @@ static void __init origen_bt_setup(void)
|
||||
s3c_gpio_setpull(EXYNOS4_GPX2(2), S3C_GPIO_PULL_NONE);
|
||||
}
|
||||
|
||||
/* I2C module and id for HDMIPHY */
|
||||
static struct i2c_board_info hdmiphy_info = {
|
||||
I2C_BOARD_INFO("hdmiphy-exynos4210", 0x38),
|
||||
};
|
||||
|
||||
static void s5p_tv_setup(void)
|
||||
{
|
||||
/* Direct HPD to HDMI chip */
|
||||
@ -781,6 +787,7 @@ static void __init origen_machine_init(void)
|
||||
|
||||
s5p_tv_setup();
|
||||
s5p_i2c_hdmiphy_set_platdata(NULL);
|
||||
s5p_hdmi_set_platdata(&hdmiphy_info, NULL, 0);
|
||||
|
||||
#ifdef CONFIG_DRM_EXYNOS
|
||||
s5p_device_fimd0.dev.platform_data = &drm_fimd_pdata;
|
||||
|
||||
@ -40,6 +40,7 @@
|
||||
#include <plat/mfc.h>
|
||||
#include <plat/ehci.h>
|
||||
#include <plat/clock.h>
|
||||
#include <plat/hdmi.h>
|
||||
|
||||
#include <mach/map.h>
|
||||
#include <mach/ohci.h>
|
||||
@ -354,6 +355,11 @@ static struct platform_pwm_backlight_data smdkv310_bl_data = {
|
||||
.pwm_period_ns = 1000,
|
||||
};
|
||||
|
||||
/* I2C module and id for HDMIPHY */
|
||||
static struct i2c_board_info hdmiphy_info = {
|
||||
I2C_BOARD_INFO("hdmiphy-exynos4210", 0x38),
|
||||
};
|
||||
|
||||
static void s5p_tv_setup(void)
|
||||
{
|
||||
/* direct HPD to HDMI chip */
|
||||
@ -388,6 +394,7 @@ static void __init smdkv310_machine_init(void)
|
||||
|
||||
s5p_tv_setup();
|
||||
s5p_i2c_hdmiphy_set_platdata(NULL);
|
||||
s5p_hdmi_set_platdata(&hdmiphy_info, NULL, 0);
|
||||
|
||||
samsung_keypad_set_platdata(&smdkv310_keypad_data);
|
||||
|
||||
|
||||
@ -17,6 +17,7 @@
|
||||
#include <linux/sched.h>
|
||||
#include <asm/irq.h>
|
||||
#include <asm/mach/irq.h>
|
||||
#include <asm/system_misc.h>
|
||||
#include <mach/hardware.h>
|
||||
|
||||
#define IRQ_SOURCE(base_addr) (base_addr + 0x00)
|
||||
|
||||
@ -9,7 +9,8 @@ obj-$(CONFIG_SOC_IMX27) += clk-imx27.o mm-imx27.o ehci-imx27.o
|
||||
obj-$(CONFIG_SOC_IMX31) += mm-imx3.o cpu-imx31.o clk-imx31.o iomux-imx31.o ehci-imx31.o pm-imx3.o
|
||||
obj-$(CONFIG_SOC_IMX35) += mm-imx3.o cpu-imx35.o clk-imx35.o ehci-imx35.o pm-imx3.o
|
||||
|
||||
obj-$(CONFIG_SOC_IMX5) += cpu-imx5.o mm-imx5.o clk-imx51-imx53.o ehci-imx5.o pm-imx5.o cpu_op-mx51.o
|
||||
imx5-pm-$(CONFIG_PM) += pm-imx5.o
|
||||
obj-$(CONFIG_SOC_IMX5) += cpu-imx5.o mm-imx5.o clk-imx51-imx53.o ehci-imx5.o $(imx5-pm-y) cpu_op-mx51.o
|
||||
|
||||
obj-$(CONFIG_COMMON_CLK) += clk-pllv1.o clk-pllv2.o clk-pllv3.o clk-gate2.o \
|
||||
clk-pfd.o clk-busy.o
|
||||
@ -70,14 +71,13 @@ obj-$(CONFIG_DEBUG_LL) += lluart.o
|
||||
obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
|
||||
obj-$(CONFIG_HAVE_IMX_MMDC) += mmdc.o
|
||||
obj-$(CONFIG_HAVE_IMX_SRC) += src.o
|
||||
obj-$(CONFIG_CPU_V7) += head-v7.o
|
||||
AFLAGS_head-v7.o :=-Wa,-march=armv7-a
|
||||
obj-$(CONFIG_SMP) += platsmp.o
|
||||
AFLAGS_headsmp.o :=-Wa,-march=armv7-a
|
||||
obj-$(CONFIG_SMP) += headsmp.o platsmp.o
|
||||
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
|
||||
obj-$(CONFIG_SOC_IMX6Q) += clk-imx6q.o mach-imx6q.o
|
||||
|
||||
ifeq ($(CONFIG_PM),y)
|
||||
obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o
|
||||
obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o headsmp.o
|
||||
endif
|
||||
|
||||
# i.MX5 based machines
|
||||
|
||||
@ -222,10 +222,8 @@ int __init mx25_clocks_init(void)
|
||||
clk_register_clkdev(clk[lcdc_ipg], "ipg", "imx-fb.0");
|
||||
clk_register_clkdev(clk[lcdc_ahb], "ahb", "imx-fb.0");
|
||||
clk_register_clkdev(clk[wdt_ipg], NULL, "imx2-wdt.0");
|
||||
clk_register_clkdev(clk[ssi1_ipg_per], "per", "imx-ssi.0");
|
||||
clk_register_clkdev(clk[ssi1_ipg], "ipg", "imx-ssi.0");
|
||||
clk_register_clkdev(clk[ssi2_ipg_per], "per", "imx-ssi.1");
|
||||
clk_register_clkdev(clk[ssi2_ipg], "ipg", "imx-ssi.1");
|
||||
clk_register_clkdev(clk[ssi1_ipg], NULL, "imx-ssi.0");
|
||||
clk_register_clkdev(clk[ssi2_ipg], NULL, "imx-ssi.1");
|
||||
clk_register_clkdev(clk[esdhc1_ipg_per], "per", "sdhci-esdhc-imx25.0");
|
||||
clk_register_clkdev(clk[esdhc1_ipg], "ipg", "sdhci-esdhc-imx25.0");
|
||||
clk_register_clkdev(clk[esdhc1_ahb], "ahb", "sdhci-esdhc-imx25.0");
|
||||
@ -243,6 +241,6 @@ int __init mx25_clocks_init(void)
|
||||
clk_register_clkdev(clk[sdma_ahb], "ahb", "imx35-sdma");
|
||||
clk_register_clkdev(clk[iim_ipg], "iim", NULL);
|
||||
|
||||
mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
|
||||
mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), MX25_INT_GPT1);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -230,10 +230,8 @@ int __init mx35_clocks_init()
|
||||
clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb");
|
||||
clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1");
|
||||
clk_register_clkdev(clk[sdma_gate], NULL, "imx35-sdma");
|
||||
clk_register_clkdev(clk[ipg], "ipg", "imx-ssi.0");
|
||||
clk_register_clkdev(clk[ssi1_div_post], "per", "imx-ssi.0");
|
||||
clk_register_clkdev(clk[ipg], "ipg", "imx-ssi.1");
|
||||
clk_register_clkdev(clk[ssi2_div_post], "per", "imx-ssi.1");
|
||||
clk_register_clkdev(clk[ssi1_gate], NULL, "imx-ssi.0");
|
||||
clk_register_clkdev(clk[ssi2_gate], NULL, "imx-ssi.1");
|
||||
/* i.mx35 has the i.mx21 type uart */
|
||||
clk_register_clkdev(clk[uart1_gate], "per", "imx21-uart.0");
|
||||
clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.0");
|
||||
|
||||
@ -152,7 +152,7 @@ enum mx6q_clks {
|
||||
ssi2, ssi3, uart_ipg, uart_serial, usboh3, usdhc1, usdhc2, usdhc3,
|
||||
usdhc4, vdo_axi, vpu_axi, cko1, pll1_sys, pll2_bus, pll3_usb_otg,
|
||||
pll4_audio, pll5_video, pll6_mlb, pll7_usb_host, pll8_enet, ssi1_ipg,
|
||||
ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2,
|
||||
ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5,
|
||||
clk_max
|
||||
};
|
||||
|
||||
@ -288,8 +288,10 @@ int __init mx6q_clocks_init(void)
|
||||
clk[gpu3d_shader] = imx_clk_divider("gpu3d_shader", "gpu3d_shader_sel", base + 0x18, 29, 3);
|
||||
clk[ipu1_podf] = imx_clk_divider("ipu1_podf", "ipu1_sel", base + 0x3c, 11, 3);
|
||||
clk[ipu2_podf] = imx_clk_divider("ipu2_podf", "ipu2_sel", base + 0x3c, 16, 3);
|
||||
clk[ldb_di0_podf] = imx_clk_divider("ldb_di0_podf", "ldb_di0_sel", base + 0x20, 10, 1);
|
||||
clk[ldb_di1_podf] = imx_clk_divider("ldb_di1_podf", "ldb_di1_sel", base + 0x20, 11, 1);
|
||||
clk[ldb_di0_div_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7);
|
||||
clk[ldb_di0_podf] = imx_clk_divider("ldb_di0_podf", "ldb_di0_div_3_5", base + 0x20, 10, 1);
|
||||
clk[ldb_di1_div_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7);
|
||||
clk[ldb_di1_podf] = imx_clk_divider("ldb_di1_podf", "ldb_di1_div_3_5", base + 0x20, 11, 1);
|
||||
clk[ipu1_di0_pre] = imx_clk_divider("ipu1_di0_pre", "ipu1_di0_pre_sel", base + 0x34, 3, 3);
|
||||
clk[ipu1_di1_pre] = imx_clk_divider("ipu1_di1_pre", "ipu1_di1_pre_sel", base + 0x34, 12, 3);
|
||||
clk[ipu2_di0_pre] = imx_clk_divider("ipu2_di0_pre", "ipu2_di0_pre_sel", base + 0x38, 3, 3);
|
||||
|
||||
@ -42,22 +42,6 @@ static inline void cpu_enter_lowpower(void)
|
||||
: "cc");
|
||||
}
|
||||
|
||||
static inline void cpu_leave_lowpower(void)
|
||||
{
|
||||
unsigned int v;
|
||||
|
||||
asm volatile(
|
||||
"mrc p15, 0, %0, c1, c0, 0\n"
|
||||
" orr %0, %0, %1\n"
|
||||
" mcr p15, 0, %0, c1, c0, 0\n"
|
||||
" mrc p15, 0, %0, c1, c0, 1\n"
|
||||
" orr %0, %0, %2\n"
|
||||
" mcr p15, 0, %0, c1, c0, 1\n"
|
||||
: "=&r" (v)
|
||||
: "Ir" (CR_C), "Ir" (0x40)
|
||||
: "cc");
|
||||
}
|
||||
|
||||
/*
|
||||
* platform-specific code to shutdown a CPU
|
||||
*
|
||||
@ -67,11 +51,10 @@ void platform_cpu_die(unsigned int cpu)
|
||||
{
|
||||
cpu_enter_lowpower();
|
||||
imx_enable_cpu(cpu, false);
|
||||
cpu_do_idle();
|
||||
cpu_leave_lowpower();
|
||||
|
||||
/* We should never return from idle */
|
||||
panic("cpu %d unexpectedly exit from shutdown\n", cpu);
|
||||
/* spin here until hardware takes it down */
|
||||
while (1)
|
||||
;
|
||||
}
|
||||
|
||||
int platform_cpu_disable(unsigned int cpu)
|
||||
|
||||
@ -526,7 +526,8 @@ static void __init armadillo5x0_init(void)
|
||||
imx31_add_mxc_nand(&armadillo5x0_nand_board_info);
|
||||
|
||||
/* set NAND page size to 2k if not configured via boot mode pins */
|
||||
__raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
|
||||
__raw_writel(__raw_readl(mx3_ccm_base + MXC_CCM_RCSR) |
|
||||
(1 << 30), mx3_ccm_base + MXC_CCM_RCSR);
|
||||
|
||||
/* RTC */
|
||||
/* Get RTC IRQ and register the chip */
|
||||
|
||||
@ -71,7 +71,7 @@ soft:
|
||||
/* For imx6q sabrelite board: set KSZ9021RN RGMII pad skew */
|
||||
static int ksz9021rn_phy_fixup(struct phy_device *phydev)
|
||||
{
|
||||
if (IS_ENABLED(CONFIG_PHYLIB)) {
|
||||
if (IS_BUILTIN(CONFIG_PHYLIB)) {
|
||||
/* min rx data delay */
|
||||
phy_write(phydev, 0x0b, 0x8105);
|
||||
phy_write(phydev, 0x0c, 0x0000);
|
||||
@ -112,7 +112,7 @@ put_clk:
|
||||
|
||||
static void __init imx6q_sabrelite_init(void)
|
||||
{
|
||||
if (IS_ENABLED(CONFIG_PHYLIB))
|
||||
if (IS_BUILTIN(CONFIG_PHYLIB))
|
||||
phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
|
||||
ksz9021rn_phy_fixup);
|
||||
imx6q_sabrelite_cko1_setup();
|
||||
|
||||
@ -7,7 +7,8 @@ dtb-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += kirkwood-dns320.dtb
|
||||
dtb-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += kirkwood-dns325.dtb
|
||||
dtb-$(CONFIG_MACH_ICONNECT_DT) += kirkwood-iconnect.dtb
|
||||
dtb-$(CONFIG_MACH_IB62X0_DT) += kirkwood-ib62x0.dtb
|
||||
dtb-$(CONFIG_MACH_TS219_DT) += kirkwood-qnap-ts219.dtb
|
||||
dtb-$(CONFIG_MACH_TS219_DT) += kirkwood-ts219-6281.dtb
|
||||
dtb-$(CONFIG_MACH_TS219_DT) += kirkwood-ts219-6282.dtb
|
||||
dtb-$(CONFIG_MACH_GOFLEXNET_DT) += kirkwood-goflexnet.dtb
|
||||
dtb-$(CONFIG_MACH_LSXL_DT) += kirkwood-lschlv2.dtb
|
||||
dtb-$(CONFIG_MACH_LSXL_DT) += kirkwood-lsxhl.dtb
|
||||
|
||||
@ -301,7 +301,7 @@ void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
|
||||
{
|
||||
orion_ge00_init(eth_data,
|
||||
GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM,
|
||||
IRQ_KIRKWOOD_GE00_ERR);
|
||||
IRQ_KIRKWOOD_GE00_ERR, 1600);
|
||||
/* The interface forgets the MAC address assigned by u-boot if
|
||||
the clock is turned off, so claim the clk now. */
|
||||
clk_prepare_enable(ge0);
|
||||
@ -315,7 +315,7 @@ void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
|
||||
{
|
||||
orion_ge01_init(eth_data,
|
||||
GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM,
|
||||
IRQ_KIRKWOOD_GE01_ERR);
|
||||
IRQ_KIRKWOOD_GE01_ERR, 1600);
|
||||
clk_prepare_enable(ge1);
|
||||
}
|
||||
|
||||
@ -517,6 +517,13 @@ void __init kirkwood_wdt_init(void)
|
||||
void __init kirkwood_init_early(void)
|
||||
{
|
||||
orion_time_set_base(TIMER_VIRT_BASE);
|
||||
|
||||
/*
|
||||
* Some Kirkwood devices allocate their coherent buffers from atomic
|
||||
* context. Increase size of atomic coherent pool to make sure such
|
||||
* the allocations won't fail.
|
||||
*/
|
||||
init_dma_coherent_pool_size(SZ_1M);
|
||||
}
|
||||
|
||||
int kirkwood_tclk;
|
||||
|
||||
@ -10,6 +10,7 @@
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/sizes.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/mtd/partitions.h>
|
||||
#include <linux/ata_platform.h>
|
||||
|
||||
@ -68,7 +68,7 @@ static int __devinit sram_probe(struct platform_device *pdev)
|
||||
struct resource *res;
|
||||
int ret = 0;
|
||||
|
||||
if (!pdata && !pdata->pool_name)
|
||||
if (!pdata || !pdata->pool_name)
|
||||
return -ENODEV;
|
||||
|
||||
info = kzalloc(sizeof(*info), GFP_KERNEL);
|
||||
|
||||
@ -37,7 +37,7 @@
|
||||
#define WIN0_OFF(n) (BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4))
|
||||
#define WIN8_OFF(n) (BRIDGE_VIRT_BASE + 0x0900 + (((n) - 8) << 4))
|
||||
|
||||
static void __init __iomem *win_cfg_base(int win)
|
||||
static void __init __iomem *win_cfg_base(const struct orion_addr_map_cfg *cfg, int win)
|
||||
{
|
||||
/*
|
||||
* Find the control register base address for this window.
|
||||
|
||||
@ -213,7 +213,8 @@ void __init mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data)
|
||||
{
|
||||
orion_ge00_init(eth_data,
|
||||
GE00_PHYS_BASE, IRQ_MV78XX0_GE00_SUM,
|
||||
IRQ_MV78XX0_GE_ERR);
|
||||
IRQ_MV78XX0_GE_ERR,
|
||||
MV643XX_TX_CSUM_DEFAULT_LIMIT);
|
||||
}
|
||||
|
||||
|
||||
@ -224,7 +225,8 @@ void __init mv78xx0_ge01_init(struct mv643xx_eth_platform_data *eth_data)
|
||||
{
|
||||
orion_ge01_init(eth_data,
|
||||
GE01_PHYS_BASE, IRQ_MV78XX0_GE01_SUM,
|
||||
NO_IRQ);
|
||||
NO_IRQ,
|
||||
MV643XX_TX_CSUM_DEFAULT_LIMIT);
|
||||
}
|
||||
|
||||
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
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Reference in New Issue
Block a user