ARM: tegra: i2c driver enhancements mostly related to clocking
This branch contains a number of fixes and cleanups to the Tegra I2C driver related to clocks. These are based on the common clock conversion in order to avoid duplicating the clock driver changes before and after the conversion. Finally, a bug-fix related to I2C_M_NOSTART is included. This branch is based on previous pull request tegra-for-3.7-common-clk. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQIcBAABAgAGBQJQU4B/AAoJEMzrak5tbycx+3gQALBx5JjQ+k16znW4iTSJKtWr 3wm5npiu9mk60b1vk5n0jRWpF532gkghdLDYs5AcXDxBhC6hq+LvHUXiEEY7oEya bsIuYMw0WKGrRXEGBvxDaOJ69XCyMOpaDCS9mQyy/iT40eskYBykvSsdDMP86LxS GS/Dk+Vj59A2wWXBV0IrS9PbS1tHp7W8yxrKw0yUF8vZk5wFFga9LnDp8xUOqSrE 3kBygS2TtrMuIu85ZkO3n/I62xkAQih9KU1WvKLciw5mAKxWsNVMGA59CyY4Qu7Q 0Dr+TIrelbJYBagmSnAciEnegNbxNVYOoKja/dWNs+hZPDO/YVz55vrLecD2sEHe /jlo0c2GfS10SakrTnzFdWMfmcEHpDLMnPaBmCluh9ivBQ/wKsqrJQIMQV8tUU50 +0vBfx5/aXfrUrzQNLSZncW2MvywFuM5Rt5ODKziNTunnbSTYnbNby07SJLGllVf OlCWdpS5agkbio/50BiunnMwBkDmmCrga2gVdMbBOx5hiktMDHW7rWe6q9XqY7yW 3fYaaSmsS3WpIVRSqkL3kd2BY4hEoG5Mk0G+/a/kF9DOb9BQSu4HxEC6U1+Jy+Dy ewvAZPsYnUiI+kq2RdqJN8QDv8CKbySM3iUNG55/JUkQNC8rcoBC0OVh6XAM5fXd QVPCiYngnSE5LS0CTCC+ =6+9B -----END PGP SIGNATURE----- Merge tag 'tegra-for-3.7-drivers-i2c' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/drivers From Stephen Warren: ARM: tegra: i2c driver enhancements mostly related to clocking This branch contains a number of fixes and cleanups to the Tegra I2C driver related to clocks. These are based on the common clock conversion in order to avoid duplicating the clock driver changes before and after the conversion. Finally, a bug-fix related to I2C_M_NOSTART is included. This branch is based on previous pull request tegra-for-3.7-common-clk. * tag 'tegra-for-3.7-drivers-i2c' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: i2c: tegra: dynamically control fast clk i2c: tegra: I2_M_NOSTART functionality not supported in Tegra20 ARM: tegra: clock: remove unused clock entry for i2c ARM: tegra: clock: add connection name in i2c clock entry i2c: tegra: pass proper name for getting clock ARM: tegra: clock: add i2c fast clock entry in clock table ARM: Tegra: Add smp_twd clock for Tegra20 ARM: tegra: cpu-tegra: explicitly manage re-parenting ARM: tegra: fix overflow in tegra20_pll_clk_round_rate() ARM: tegra: Fix data type for io address ARM: tegra: remove tegra_timer from tegra_list_clks ARM: tegra30: clocks: fix the wrong tegra_audio_sync_clk_ops name ARM: tegra: clocks: separate tegra_clk_32k_ops from Tegra20 and Tegra30 ARM: tegra: Remove duplicate code ARM: tegra: Port tegra to generic clock framework ARM: tegra: Add clk_tegra structure and helper functions ARM: tegra: Rename tegra20 clock file ARM: tegra20: Separate out clk ops and clk data ARM: tegra30: Separate out clk ops and clk data ARM: tegra: fix U16 divider range check ... + sync to v3.6-rc4 Resolved remove/modify conflict in arch/arm/mach-sa1100/leds-hackkit.c caused by the sync with v3.6-rc4. Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson
Коммит
2e6185f1fe
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@ -5,4 +5,15 @@ Contact: "Ike Panhc <ike.pan@canonical.com>"
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Description:
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||||
Control the power of camera module. 1 means on, 0 means off.
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||||
|
||||
What: /sys/devices/platform/ideapad/fan_mode
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Date: June 2012
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KernelVersion: 3.6
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Contact: "Maxim Mikityanskiy <maxtram95@gmail.com>"
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||||
Description:
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||||
Change fan mode
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||||
There are four available modes:
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||||
* 0 -> Super Silent Mode
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* 1 -> Standard Mode
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||||
* 2 -> Dust Cleaning
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* 4 -> Efficient Thermal Dissipation Mode
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|
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|
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@ -224,8 +224,8 @@ all your transactions.
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</para>
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||||
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<para>
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Then at umount time , in your put_super() (2.4) or write_super() (2.5)
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you can then call journal_destroy() to clean up your in-core journal object.
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Then at umount time , in your put_super() you can then call journal_destroy()
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to clean up your in-core journal object.
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</para>
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<para>
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@ -125,7 +125,7 @@ the structure refers to a radio tuner the
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<constant>V4L2_TUNER_CAP_NORM</constant> flags can't be used.</para>
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<para>If multiple frequency bands are supported, then
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<structfield>capability</structfield> is the union of all
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<structfield>capability></structfield> fields of each &v4l2-frequency-band;.
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<structfield>capability</structfield> fields of each &v4l2-frequency-band;.
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</para></entry>
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</row>
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<row>
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|
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@ -3,15 +3,21 @@
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biodoc.txt
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- Notes on the Generic Block Layer Rewrite in Linux 2.5
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capability.txt
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- Generic Block Device Capability (/sys/block/<disk>/capability)
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- Generic Block Device Capability (/sys/block/<device>/capability)
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cfq-iosched.txt
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- CFQ IO scheduler tunables
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data-integrity.txt
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- Block data integrity
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deadline-iosched.txt
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- Deadline IO scheduler tunables
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ioprio.txt
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- Block io priorities (in CFQ scheduler)
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queue-sysfs.txt
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- Queue's sysfs entries
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request.txt
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- The members of struct request (in include/linux/blkdev.h)
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stat.txt
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- Block layer statistics in /sys/block/<dev>/stat
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- Block layer statistics in /sys/block/<device>/stat
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switching-sched.txt
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- Switching I/O schedulers at runtime
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writeback_cache_control.txt
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@ -1,3 +1,14 @@
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CFQ (Complete Fairness Queueing)
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===============================
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The main aim of CFQ scheduler is to provide a fair allocation of the disk
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I/O bandwidth for all the processes which requests an I/O operation.
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CFQ maintains the per process queue for the processes which request I/O
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operation(syncronous requests). In case of asynchronous requests, all the
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requests from all the processes are batched together according to their
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process's I/O priority.
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CFQ ioscheduler tunables
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========================
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@ -25,6 +36,72 @@ there are multiple spindles behind single LUN (Host based hardware RAID
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controller or for storage arrays), setting slice_idle=0 might end up in better
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throughput and acceptable latencies.
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back_seek_max
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-------------
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This specifies, given in Kbytes, the maximum "distance" for backward seeking.
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The distance is the amount of space from the current head location to the
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sectors that are backward in terms of distance.
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This parameter allows the scheduler to anticipate requests in the "backward"
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direction and consider them as being the "next" if they are within this
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distance from the current head location.
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back_seek_penalty
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-----------------
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This parameter is used to compute the cost of backward seeking. If the
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backward distance of request is just 1/back_seek_penalty from a "front"
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request, then the seeking cost of two requests is considered equivalent.
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So scheduler will not bias toward one or the other request (otherwise scheduler
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will bias toward front request). Default value of back_seek_penalty is 2.
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|
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fifo_expire_async
|
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-----------------
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This parameter is used to set the timeout of asynchronous requests. Default
|
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value of this is 248ms.
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|
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fifo_expire_sync
|
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----------------
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This parameter is used to set the timeout of synchronous requests. Default
|
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value of this is 124ms. In case to favor synchronous requests over asynchronous
|
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one, this value should be decreased relative to fifo_expire_async.
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|
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slice_async
|
||||
-----------
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This parameter is same as of slice_sync but for asynchronous queue. The
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default value is 40ms.
|
||||
|
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slice_async_rq
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--------------
|
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This parameter is used to limit the dispatching of asynchronous request to
|
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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
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||||
for this is 2.
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||||
|
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slice_sync
|
||||
----------
|
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When a queue is selected for execution, the queues IO requests are only
|
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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
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queue.
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|
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time_slice is computed using the below equation:-
|
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time_slice = slice_sync + (slice_sync/5 * (4 - prio)). To increase the
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||||
time_slice of synchronous queue, increase the value of slice_sync. Default
|
||||
value is 100ms.
|
||||
|
||||
quantum
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||||
-------
|
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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
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|
|
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|
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@ -9,20 +9,71 @@ These files are the ones found in the /sys/block/xxx/queue/ directory.
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Files denoted with a RO postfix are readonly and the RW postfix means
|
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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
|
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the number of bytes that can be trimmed or unmapped in a single operation.
|
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The discard_max_bytes parameter is set by the device driver to the maximum
|
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number of bytes that can be discarded in a single operation. Discard
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requests issued to the device must not exceed this limit. A discard_max_bytes
|
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value of 0 means that the device does not support discard functionality.
|
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|
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discard_zeroes_data (RO)
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------------------------
|
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When read, this file will show if the discarded block are zeroed by the
|
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device or not. If its value is '1' the blocks are zeroed otherwise not.
|
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|
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hw_sector_size (RO)
|
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-------------------
|
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This is the hardware sector size of the device, in bytes.
|
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|
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iostats (RW)
|
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-------------
|
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This file is used to control (on/off) the iostats accounting of the
|
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disk.
|
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logical_block_size (RO)
|
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-----------------------
|
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This is the logcal block size of the device, in bytes.
|
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|
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max_hw_sectors_kb (RO)
|
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----------------------
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This is the maximum number of kilobytes supported in a single data transfer.
|
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|
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max_integrity_segments (RO)
|
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---------------------------
|
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When read, this file shows the max limit of integrity segments as
|
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set by block layer which a hardware controller can handle.
|
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|
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max_sectors_kb (RW)
|
||||
-------------------
|
||||
This is the maximum number of kilobytes that the block layer will allow
|
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for a filesystem request. Must be smaller than or equal to the maximum
|
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size allowed by the hardware.
|
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|
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max_segments (RO)
|
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-----------------
|
||||
Maximum number of segments of the device.
|
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|
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max_segment_size (RO)
|
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---------------------
|
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Maximum segment size of the device.
|
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|
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minimum_io_size (RO)
|
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--------------------
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This is the smallest preferred io size reported by the device.
|
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nomerges (RW)
|
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-------------
|
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This enables the user to disable the lookup logic involved with IO
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|
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@ -45,11 +96,24 @@ per-block-cgroup request pool. IOW, if there are N block cgroups,
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each request queue may have upto N request pools, each independently
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regulated by nr_requests.
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optimal_io_size (RO)
|
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--------------------
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This is the optimal io size reported by the device.
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physical_block_size (RO)
|
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------------------------
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This is the physical block size of device, in bytes.
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read_ahead_kb (RW)
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------------------
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Maximum number of kilobytes to read-ahead for filesystems on this block
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device.
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rotational (RW)
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---------------
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This file is used to stat if the device is of rotational type or
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non-rotational type.
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rq_affinity (RW)
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----------------
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If this option is '1', the block layer will migrate request completions to the
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|
|
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|
|
@ -10,8 +10,8 @@ Required properties:
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- compatible : Should be "fsl,<chip>-esdhc"
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Optional properties:
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- fsl,cd-internal : Indicate to use controller internal card detection
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- fsl,wp-internal : Indicate to use controller internal write protection
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- fsl,cd-controller : Indicate to use controller internal card detection
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- fsl,wp-controller : Indicate to use controller internal write protection
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|
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Examples:
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|
@ -19,8 +19,8 @@ esdhc@70004000 {
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compatible = "fsl,imx51-esdhc";
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reg = <0x70004000 0x4000>;
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interrupts = <1>;
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fsl,cd-internal;
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fsl,wp-internal;
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fsl,cd-controller;
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fsl,wp-controller;
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};
|
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|
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esdhc@70008000 {
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|
|
|
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|
|
@ -9,9 +9,9 @@ Required properties:
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|||
- regulators: list of regulators provided by this controller, must have
|
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property "regulator-compatible" to match their hardware counterparts:
|
||||
sm[0-2], ldo[0-9] and ldo_rtc
|
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- 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.
|
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- vin-sm2-supply: The input supply for the SM2.
|
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- vinldo01-supply: The input supply for the LDO1 and LDO2
|
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- vinldo23-supply: The input supply for the LDO2 and LDO3
|
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- vinldo4-supply: The input supply for the LDO4
|
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|
|
@ -30,9 +30,9 @@ Example:
|
|||
#gpio-cells = <2>;
|
||||
gpio-controller;
|
||||
|
||||
sm0-supply = <&some_reg>;
|
||||
sm1-supply = <&some_reg>;
|
||||
sm2-supply = <&some_reg>;
|
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vin-sm0-supply = <&some_reg>;
|
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vin-sm1-supply = <&some_reg>;
|
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vin-sm2-supply = <&some_reg>;
|
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vinldo01-supply = <...>;
|
||||
vinldo23-supply = <...>;
|
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vinldo4-supply = <...>;
|
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|
|
|
|||
|
|
@ -114,7 +114,6 @@ prototypes:
|
|||
int (*drop_inode) (struct inode *);
|
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void (*evict_inode) (struct inode *);
|
||||
void (*put_super) (struct super_block *);
|
||||
void (*write_super) (struct super_block *);
|
||||
int (*sync_fs)(struct super_block *sb, int wait);
|
||||
int (*freeze_fs) (struct super_block *);
|
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int (*unfreeze_fs) (struct super_block *);
|
||||
|
|
@ -136,7 +135,6 @@ write_inode:
|
|||
drop_inode: !!!inode->i_lock!!!
|
||||
evict_inode:
|
||||
put_super: write
|
||||
write_super: read
|
||||
sync_fs: read
|
||||
freeze_fs: write
|
||||
unfreeze_fs: write
|
||||
|
|
|
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|
|
@ -94,9 +94,8 @@ protected.
|
|||
---
|
||||
[mandatory]
|
||||
|
||||
BKL is also moved from around sb operations. ->write_super() Is now called
|
||||
without BKL held. BKL should have been shifted into individual fs sb_op
|
||||
functions. If you don't need it, remove it.
|
||||
BKL is also moved from around sb operations. BKL should have been shifted into
|
||||
individual fs sb_op functions. If you don't need it, remove it.
|
||||
|
||||
---
|
||||
[informational]
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -216,7 +216,6 @@ struct super_operations {
|
|||
void (*drop_inode) (struct inode *);
|
||||
void (*delete_inode) (struct inode *);
|
||||
void (*put_super) (struct super_block *);
|
||||
void (*write_super) (struct super_block *);
|
||||
int (*sync_fs)(struct super_block *sb, int wait);
|
||||
int (*freeze_fs) (struct super_block *);
|
||||
int (*unfreeze_fs) (struct super_block *);
|
||||
|
|
@ -273,9 +272,6 @@ or bottom half).
|
|||
put_super: called when the VFS wishes to free the superblock
|
||||
(i.e. unmount). This is called with the superblock lock held
|
||||
|
||||
write_super: called when the VFS superblock needs to be written to
|
||||
disc. This method is optional
|
||||
|
||||
sync_fs: called when VFS is writing out all dirty data associated with
|
||||
a superblock. The second parameter indicates whether the method
|
||||
should wait until the write out has been completed. Optional.
|
||||
|
|
|
|||
|
|
@ -262,9 +262,9 @@ MINIMUM_BATTERY_MINUTES=10
|
|||
|
||||
#
|
||||
# Allowed dirty background ratio, in percent. Once DIRTY_RATIO has been
|
||||
# exceeded, the kernel will wake pdflush which will then reduce the amount
|
||||
# of dirty memory to dirty_background_ratio. Set this nice and low, so once
|
||||
# some writeout has commenced, we do a lot of it.
|
||||
# exceeded, the kernel will wake flusher threads which will then reduce the
|
||||
# amount of dirty memory to dirty_background_ratio. Set this nice and low,
|
||||
# so once some writeout has commenced, we do a lot of it.
|
||||
#
|
||||
#DIRTY_BACKGROUND_RATIO=5
|
||||
|
||||
|
|
@ -384,9 +384,9 @@ CPU_MAXFREQ=${CPU_MAXFREQ:-'slowest'}
|
|||
|
||||
#
|
||||
# Allowed dirty background ratio, in percent. Once DIRTY_RATIO has been
|
||||
# exceeded, the kernel will wake pdflush which will then reduce the amount
|
||||
# of dirty memory to dirty_background_ratio. Set this nice and low, so once
|
||||
# some writeout has commenced, we do a lot of it.
|
||||
# exceeded, the kernel will wake flusher threads which will then reduce the
|
||||
# amount of dirty memory to dirty_background_ratio. Set this nice and low,
|
||||
# so once some writeout has commenced, we do a lot of it.
|
||||
#
|
||||
DIRTY_BACKGROUND_RATIO=${DIRTY_BACKGROUND_RATIO:-'5'}
|
||||
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -46,14 +46,13 @@ restrictions, it can call prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, ...)
|
|||
so that any otherwise allowed process (even those in external pid namespaces)
|
||||
may attach.
|
||||
|
||||
These restrictions do not change how ptrace via PTRACE_TRACEME operates.
|
||||
|
||||
The sysctl settings are:
|
||||
The sysctl settings (writable only with CAP_SYS_PTRACE) are:
|
||||
|
||||
0 - classic ptrace permissions: a process can PTRACE_ATTACH to any other
|
||||
process running under the same uid, as long as it is dumpable (i.e.
|
||||
did not transition uids, start privileged, or have called
|
||||
prctl(PR_SET_DUMPABLE...) already).
|
||||
prctl(PR_SET_DUMPABLE...) already). Similarly, PTRACE_TRACEME is
|
||||
unchanged.
|
||||
|
||||
1 - restricted ptrace: a process must have a predefined relationship
|
||||
with the inferior it wants to call PTRACE_ATTACH on. By default,
|
||||
|
|
@ -61,12 +60,13 @@ The sysctl settings are:
|
|||
classic criteria is also met. To change the relationship, an
|
||||
inferior can call prctl(PR_SET_PTRACER, debugger, ...) to declare
|
||||
an allowed debugger PID to call PTRACE_ATTACH on the inferior.
|
||||
Using PTRACE_TRACEME is unchanged.
|
||||
|
||||
2 - admin-only attach: only processes with CAP_SYS_PTRACE may use ptrace
|
||||
with PTRACE_ATTACH.
|
||||
with PTRACE_ATTACH, or through children calling PTRACE_TRACEME.
|
||||
|
||||
3 - no attach: no processes may use ptrace with PTRACE_ATTACH. Once set,
|
||||
this sysctl cannot be changed to a lower value.
|
||||
3 - no attach: no processes may use ptrace with PTRACE_ATTACH nor via
|
||||
PTRACE_TRACEME. Once set, this sysctl value cannot be changed.
|
||||
|
||||
The original children-only logic was based on the restrictions in grsecurity.
|
||||
|
||||
|
|
|
|||
|
|
@ -76,8 +76,8 @@ huge pages although processes will also directly compact memory as required.
|
|||
|
||||
dirty_background_bytes
|
||||
|
||||
Contains the amount of dirty memory at which the pdflush background writeback
|
||||
daemon will start writeback.
|
||||
Contains the amount of dirty memory at which the background kernel
|
||||
flusher threads will start writeback.
|
||||
|
||||
Note: dirty_background_bytes is the counterpart of dirty_background_ratio. Only
|
||||
one of them may be specified at a time. When one sysctl is written it is
|
||||
|
|
@ -89,7 +89,7 @@ other appears as 0 when read.
|
|||
dirty_background_ratio
|
||||
|
||||
Contains, as a percentage of total system memory, the number of pages at which
|
||||
the pdflush background writeback daemon will start writing out dirty data.
|
||||
the background kernel flusher threads will start writing out dirty data.
|
||||
|
||||
==============================================================
|
||||
|
||||
|
|
@ -112,9 +112,9 @@ retained.
|
|||
dirty_expire_centisecs
|
||||
|
||||
This tunable is used to define when dirty data is old enough to be eligible
|
||||
for writeout by the pdflush daemons. It is expressed in 100'ths of a second.
|
||||
Data which has been dirty in-memory for longer than this interval will be
|
||||
written out next time a pdflush daemon wakes up.
|
||||
for writeout by the kernel flusher threads. It is expressed in 100'ths
|
||||
of a second. Data which has been dirty in-memory for longer than this
|
||||
interval will be written out next time a flusher thread wakes up.
|
||||
|
||||
==============================================================
|
||||
|
||||
|
|
@ -128,7 +128,7 @@ data.
|
|||
|
||||
dirty_writeback_centisecs
|
||||
|
||||
The pdflush writeback daemons will periodically wake up and write `old' data
|
||||
The kernel flusher threads will periodically wake up and write `old' data
|
||||
out to disk. This tunable expresses the interval between those wakeups, in
|
||||
100'ths of a second.
|
||||
|
||||
|
|
|
|||
|
|
@ -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");
|
||||
|
|
|
|||
70
MAINTAINERS
70
MAINTAINERS
|
|
@ -827,24 +827,24 @@ F: arch/arm/mach-pxa/colibri-pxa270-income.c
|
|||
|
||||
ARM/INTEL IOP32X ARM ARCHITECTURE
|
||||
M: Lennert Buytenhek <kernel@wantstofly.org>
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
|
||||
ARM/INTEL IOP33X ARM ARCHITECTURE
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
|
||||
ARM/INTEL IOP13XX ARM ARCHITECTURE
|
||||
M: Lennert Buytenhek <kernel@wantstofly.org>
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
|
||||
ARM/INTEL IQ81342EX MACHINE SUPPORT
|
||||
M: Lennert Buytenhek <kernel@wantstofly.org>
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
|
||||
|
|
@ -869,7 +869,7 @@ F: drivers/pcmcia/pxa2xx_stargate2.c
|
|||
|
||||
ARM/INTEL XSC3 (MANZANO) ARM CORE
|
||||
M: Lennert Buytenhek <kernel@wantstofly.org>
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
|
||||
|
|
@ -925,14 +925,14 @@ S: Maintained
|
|||
|
||||
ARM/NOMADIK ARCHITECTURE
|
||||
M: Alessandro Rubini <rubini@unipv.it>
|
||||
M: Linus Walleij <linus.walleij@stericsson.com>
|
||||
M: Linus Walleij <linus.walleij@linaro.org>
|
||||
M: STEricsson <STEricsson_nomadik_linux@list.st.com>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
F: arch/arm/mach-nomadik/
|
||||
F: arch/arm/plat-nomadik/
|
||||
F: drivers/i2c/busses/i2c-nomadik.c
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
|
||||
|
||||
ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
|
||||
M: Nelson Castillo <arhuaco@freaks-unidos.net>
|
||||
|
|
@ -1146,7 +1146,7 @@ F: drivers/usb/host/ehci-w90x900.c
|
|||
F: drivers/video/nuc900fb.c
|
||||
|
||||
ARM/U300 MACHINE SUPPORT
|
||||
M: Linus Walleij <linus.walleij@stericsson.com>
|
||||
M: Linus Walleij <linus.walleij@linaro.org>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Supported
|
||||
F: arch/arm/mach-u300/
|
||||
|
|
@ -1161,15 +1161,20 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson.git
|
|||
|
||||
ARM/Ux500 ARM ARCHITECTURE
|
||||
M: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
|
||||
M: Linus Walleij <linus.walleij@stericsson.com>
|
||||
M: Linus Walleij <linus.walleij@linaro.org>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
F: arch/arm/mach-ux500/
|
||||
F: drivers/clocksource/clksrc-dbx500-prcmu.c
|
||||
F: drivers/dma/ste_dma40*
|
||||
F: drivers/hwspinlock/u8500_hsem.c
|
||||
F: drivers/mfd/abx500*
|
||||
F: drivers/mfd/ab8500*
|
||||
F: drivers/mfd/stmpe*
|
||||
F: drivers/mfd/dbx500*
|
||||
F: drivers/mfd/db8500*
|
||||
F: drivers/pinctrl/pinctrl-nomadik*
|
||||
F: drivers/rtc/rtc-ab8500.c
|
||||
F: drivers/rtc/rtc-pl031.c
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson.git
|
||||
|
||||
ARM/VFP SUPPORT
|
||||
|
|
@ -1227,9 +1232,9 @@ S: Maintained
|
|||
F: drivers/hwmon/asb100.c
|
||||
|
||||
ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
W: http://sourceforge.net/projects/xscaleiop
|
||||
S: Supported
|
||||
S: Maintained
|
||||
F: Documentation/crypto/async-tx-api.txt
|
||||
F: crypto/async_tx/
|
||||
F: drivers/dma/
|
||||
|
|
@ -2212,7 +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/
|
||||
|
|
@ -2359,7 +2364,7 @@ T: git git://git.linaro.org/people/sumitsemwal/linux-dma-buf.git
|
|||
|
||||
DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
|
||||
M: Vinod Koul <vinod.koul@intel.com>
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
S: Supported
|
||||
F: drivers/dma/
|
||||
F: include/linux/dma*
|
||||
|
|
@ -3094,7 +3099,7 @@ F: include/linux/gigaset_dev.h
|
|||
|
||||
GPIO SUBSYSTEM
|
||||
M: Grant Likely <grant.likely@secretlab.ca>
|
||||
M: Linus Walleij <linus.walleij@stericsson.com>
|
||||
M: Linus Walleij <linus.walleij@linaro.org>
|
||||
S: Maintained
|
||||
T: git git://git.secretlab.ca/git/linux-2.6.git
|
||||
F: Documentation/gpio.txt
|
||||
|
|
@ -3547,7 +3552,6 @@ K: \b(ABS|SYN)_MT_
|
|||
|
||||
INTEL C600 SERIES SAS CONTROLLER DRIVER
|
||||
M: Intel SCU Linux support <intel-linux-scu@intel.com>
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
M: Dave Jiang <dave.jiang@intel.com>
|
||||
M: Ed Nadolski <edmund.nadolski@intel.com>
|
||||
L: linux-scsi@vger.kernel.org
|
||||
|
|
@ -3590,8 +3594,8 @@ F: arch/x86/kernel/microcode_core.c
|
|||
F: arch/x86/kernel/microcode_intel.c
|
||||
|
||||
INTEL I/OAT DMA DRIVER
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
S: Supported
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
S: Maintained
|
||||
F: drivers/dma/ioat*
|
||||
|
||||
INTEL IOMMU (VT-d)
|
||||
|
|
@ -3603,8 +3607,8 @@ F: drivers/iommu/intel-iommu.c
|
|||
F: include/linux/intel-iommu.h
|
||||
|
||||
INTEL IOP-ADMA DMA DRIVER
|
||||
M: Dan Williams <dan.j.williams@intel.com>
|
||||
S: Maintained
|
||||
M: Dan Williams <djbw@fb.com>
|
||||
S: Odd fixes
|
||||
F: drivers/dma/iop-adma.c
|
||||
|
||||
INTEL IXP4XX QMGR, NPE, ETHERNET and HSS SUPPORT
|
||||
|
|
@ -4533,7 +4537,7 @@ 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.*
|
||||
|
||||
|
|
@ -5329,14 +5333,15 @@ PIN CONTROL SUBSYSTEM
|
|||
M: Linus Walleij <linus.walleij@linaro.org>
|
||||
S: Maintained
|
||||
F: drivers/pinctrl/
|
||||
F: include/linux/pinctrl/
|
||||
|
||||
PIN CONTROLLER - ST SPEAR
|
||||
M: Viresh Kumar <viresh.linux@gmail.com>
|
||||
M: Viresh Kumar <viresh.linux@gmail.com>
|
||||
L: spear-devel@list.st.com
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
W: http://www.st.com/spear
|
||||
S: Maintained
|
||||
F: driver/pinctrl/spear/
|
||||
F: drivers/pinctrl/spear/
|
||||
|
||||
PKTCDVD DRIVER
|
||||
M: Peter Osterlund <petero2@telia.com>
|
||||
|
|
@ -7071,7 +7076,7 @@ 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
|
||||
|
|
@ -7092,7 +7097,7 @@ 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
|
||||
|
|
@ -7165,7 +7170,7 @@ 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.*
|
||||
|
|
@ -7283,6 +7288,12 @@ 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
|
||||
|
|
@ -7665,23 +7676,28 @@ 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
|
||||
|
|
|
|||
2
Makefile
2
Makefile
|
|
@ -1,7 +1,7 @@
|
|||
VERSION = 3
|
||||
PATCHLEVEL = 6
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION = -rc1
|
||||
EXTRAVERSION = -rc4
|
||||
NAME = Saber-toothed Squirrel
|
||||
|
||||
# *DOCUMENTATION*
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -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"
|
||||
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
@ -692,6 +686,7 @@ config ARCH_TEGRA
|
|||
select NEED_MACH_IO_H if PCI
|
||||
select ARCH_HAS_CPUFREQ
|
||||
select USE_OF
|
||||
select COMMON_CLK
|
||||
help
|
||||
This enables support for NVIDIA Tegra based systems (Tegra APX,
|
||||
Tegra 6xx and Tegra 2 series).
|
||||
|
|
@ -2097,6 +2092,7 @@ 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.
|
||||
|
||||
|
|
|
|||
|
|
@ -154,5 +154,10 @@
|
|||
#size-cells = <0>;
|
||||
ti,hwmods = "i2c3";
|
||||
};
|
||||
|
||||
wdt2: wdt@44e35000 {
|
||||
compatible = "ti,omap3-wdt";
|
||||
ti,hwmods = "wd_timer2";
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -51,11 +51,11 @@
|
|||
|
||||
dma-apbh@80004000 {
|
||||
compatible = "fsl,imx23-dma-apbh";
|
||||
reg = <0x80004000 2000>;
|
||||
reg = <0x80004000 0x2000>;
|
||||
};
|
||||
|
||||
ecc@80008000 {
|
||||
reg = <0x80008000 2000>;
|
||||
reg = <0x80008000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
@ -63,7 +63,7 @@
|
|||
compatible = "fsl,imx23-gpmi-nand";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
reg = <0x8000c000 2000>, <0x8000a000 2000>;
|
||||
reg = <0x8000c000 0x2000>, <0x8000a000 0x2000>;
|
||||
reg-names = "gpmi-nand", "bch";
|
||||
interrupts = <13>, <56>;
|
||||
interrupt-names = "gpmi-dma", "bch";
|
||||
|
|
@ -72,14 +72,14 @@
|
|||
};
|
||||
|
||||
ssp0: ssp@80010000 {
|
||||
reg = <0x80010000 2000>;
|
||||
reg = <0x80010000 0x2000>;
|
||||
interrupts = <15 14>;
|
||||
fsl,ssp-dma-channel = <1>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
etm@80014000 {
|
||||
reg = <0x80014000 2000>;
|
||||
reg = <0x80014000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
@ -87,7 +87,7 @@
|
|||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
compatible = "fsl,imx23-pinctrl", "simple-bus";
|
||||
reg = <0x80018000 2000>;
|
||||
reg = <0x80018000 0x2000>;
|
||||
|
||||
gpio0: gpio@0 {
|
||||
compatible = "fsl,imx23-gpio", "fsl,mxs-gpio";
|
||||
|
|
@ -273,32 +273,32 @@
|
|||
};
|
||||
|
||||
emi@80020000 {
|
||||
reg = <0x80020000 2000>;
|
||||
reg = <0x80020000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
dma-apbx@80024000 {
|
||||
compatible = "fsl,imx23-dma-apbx";
|
||||
reg = <0x80024000 2000>;
|
||||
reg = <0x80024000 0x2000>;
|
||||
};
|
||||
|
||||
dcp@80028000 {
|
||||
reg = <0x80028000 2000>;
|
||||
reg = <0x80028000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
pxp@8002a000 {
|
||||
reg = <0x8002a000 2000>;
|
||||
reg = <0x8002a000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
ocotp@8002c000 {
|
||||
reg = <0x8002c000 2000>;
|
||||
reg = <0x8002c000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
axi-ahb@8002e000 {
|
||||
reg = <0x8002e000 2000>;
|
||||
reg = <0x8002e000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
@ -310,14 +310,14 @@
|
|||
};
|
||||
|
||||
ssp1: ssp@80034000 {
|
||||
reg = <0x80034000 2000>;
|
||||
reg = <0x80034000 0x2000>;
|
||||
interrupts = <2 20>;
|
||||
fsl,ssp-dma-channel = <2>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
tvenc@80038000 {
|
||||
reg = <0x80038000 2000>;
|
||||
reg = <0x80038000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
};
|
||||
|
|
@ -330,37 +330,37 @@
|
|||
ranges;
|
||||
|
||||
clkctl@80040000 {
|
||||
reg = <0x80040000 2000>;
|
||||
reg = <0x80040000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
saif0: saif@80042000 {
|
||||
reg = <0x80042000 2000>;
|
||||
reg = <0x80042000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
power@80044000 {
|
||||
reg = <0x80044000 2000>;
|
||||
reg = <0x80044000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
saif1: saif@80046000 {
|
||||
reg = <0x80046000 2000>;
|
||||
reg = <0x80046000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
audio-out@80048000 {
|
||||
reg = <0x80048000 2000>;
|
||||
reg = <0x80048000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
audio-in@8004c000 {
|
||||
reg = <0x8004c000 2000>;
|
||||
reg = <0x8004c000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
lradc@80050000 {
|
||||
reg = <0x80050000 2000>;
|
||||
reg = <0x80050000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
@ -370,26 +370,26 @@
|
|||
};
|
||||
|
||||
i2c@80058000 {
|
||||
reg = <0x80058000 2000>;
|
||||
reg = <0x80058000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
rtc@8005c000 {
|
||||
compatible = "fsl,imx23-rtc", "fsl,stmp3xxx-rtc";
|
||||
reg = <0x8005c000 2000>;
|
||||
reg = <0x8005c000 0x2000>;
|
||||
interrupts = <22>;
|
||||
};
|
||||
|
||||
pwm: pwm@80064000 {
|
||||
compatible = "fsl,imx23-pwm";
|
||||
reg = <0x80064000 2000>;
|
||||
reg = <0x80064000 0x2000>;
|
||||
#pwm-cells = <2>;
|
||||
fsl,pwm-number = <5>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
timrot@80068000 {
|
||||
reg = <0x80068000 2000>;
|
||||
reg = <0x80068000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
@ -429,7 +429,7 @@
|
|||
ranges;
|
||||
|
||||
usbctrl@80080000 {
|
||||
reg = <0x80080000 0x10000>;
|
||||
reg = <0x80080000 0x40000>;
|
||||
status = "disabled";
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@
|
|||
status = "okay";
|
||||
};
|
||||
|
||||
uart@1000a000 {
|
||||
uart1: serial@1000a000 {
|
||||
fsl,uart-has-rtscts;
|
||||
status = "okay";
|
||||
};
|
||||
|
|
|
|||
|
|
@ -19,6 +19,12 @@
|
|||
serial3 = &uart4;
|
||||
serial4 = &uart5;
|
||||
serial5 = &uart6;
|
||||
gpio0 = &gpio1;
|
||||
gpio1 = &gpio2;
|
||||
gpio2 = &gpio3;
|
||||
gpio3 = &gpio4;
|
||||
gpio4 = &gpio5;
|
||||
gpio5 = &gpio6;
|
||||
};
|
||||
|
||||
avic: avic-interrupt-controller@e0000000 {
|
||||
|
|
|
|||
|
|
@ -57,18 +57,18 @@
|
|||
};
|
||||
|
||||
hsadc@80002000 {
|
||||
reg = <0x80002000 2000>;
|
||||
reg = <0x80002000 0x2000>;
|
||||
interrupts = <13 87>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
dma-apbh@80004000 {
|
||||
compatible = "fsl,imx28-dma-apbh";
|
||||
reg = <0x80004000 2000>;
|
||||
reg = <0x80004000 0x2000>;
|
||||
};
|
||||
|
||||
perfmon@80006000 {
|
||||
reg = <0x80006000 800>;
|
||||
reg = <0x80006000 0x800>;
|
||||
interrupts = <27>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
|
@ -77,7 +77,7 @@
|
|||
compatible = "fsl,imx28-gpmi-nand";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
reg = <0x8000c000 2000>, <0x8000a000 2000>;
|
||||
reg = <0x8000c000 0x2000>, <0x8000a000 0x2000>;
|
||||
reg-names = "gpmi-nand", "bch";
|
||||
interrupts = <88>, <41>;
|
||||
interrupt-names = "gpmi-dma", "bch";
|
||||
|
|
@ -86,28 +86,28 @@
|
|||
};
|
||||
|
||||
ssp0: ssp@80010000 {
|
||||
reg = <0x80010000 2000>;
|
||||
reg = <0x80010000 0x2000>;
|
||||
interrupts = <96 82>;
|
||||
fsl,ssp-dma-channel = <0>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
ssp1: ssp@80012000 {
|
||||
reg = <0x80012000 2000>;
|
||||
reg = <0x80012000 0x2000>;
|
||||
interrupts = <97 83>;
|
||||
fsl,ssp-dma-channel = <1>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
ssp2: ssp@80014000 {
|
||||
reg = <0x80014000 2000>;
|
||||
reg = <0x80014000 0x2000>;
|
||||
interrupts = <98 84>;
|
||||
fsl,ssp-dma-channel = <2>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
ssp3: ssp@80016000 {
|
||||
reg = <0x80016000 2000>;
|
||||
reg = <0x80016000 0x2000>;
|
||||
interrupts = <99 85>;
|
||||
fsl,ssp-dma-channel = <3>;
|
||||
status = "disabled";
|
||||
|
|
@ -117,7 +117,7 @@
|
|||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
compatible = "fsl,imx28-pinctrl", "simple-bus";
|
||||
reg = <0x80018000 2000>;
|
||||
reg = <0x80018000 0x2000>;
|
||||
|
||||
gpio0: gpio@0 {
|
||||
compatible = "fsl,imx28-gpio", "fsl,mxs-gpio";
|
||||
|
|
@ -510,96 +510,96 @@
|
|||
};
|
||||
|
||||
digctl@8001c000 {
|
||||
reg = <0x8001c000 2000>;
|
||||
reg = <0x8001c000 0x2000>;
|
||||
interrupts = <89>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
etm@80022000 {
|
||||
reg = <0x80022000 2000>;
|
||||
reg = <0x80022000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
dma-apbx@80024000 {
|
||||
compatible = "fsl,imx28-dma-apbx";
|
||||
reg = <0x80024000 2000>;
|
||||
reg = <0x80024000 0x2000>;
|
||||
};
|
||||
|
||||
dcp@80028000 {
|
||||
reg = <0x80028000 2000>;
|
||||
reg = <0x80028000 0x2000>;
|
||||
interrupts = <52 53 54>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
pxp@8002a000 {
|
||||
reg = <0x8002a000 2000>;
|
||||
reg = <0x8002a000 0x2000>;
|
||||
interrupts = <39>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
ocotp@8002c000 {
|
||||
reg = <0x8002c000 2000>;
|
||||
reg = <0x8002c000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
axi-ahb@8002e000 {
|
||||
reg = <0x8002e000 2000>;
|
||||
reg = <0x8002e000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
lcdif@80030000 {
|
||||
compatible = "fsl,imx28-lcdif";
|
||||
reg = <0x80030000 2000>;
|
||||
reg = <0x80030000 0x2000>;
|
||||
interrupts = <38 86>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
can0: can@80032000 {
|
||||
compatible = "fsl,imx28-flexcan", "fsl,p1010-flexcan";
|
||||
reg = <0x80032000 2000>;
|
||||
reg = <0x80032000 0x2000>;
|
||||
interrupts = <8>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
can1: can@80034000 {
|
||||
compatible = "fsl,imx28-flexcan", "fsl,p1010-flexcan";
|
||||
reg = <0x80034000 2000>;
|
||||
reg = <0x80034000 0x2000>;
|
||||
interrupts = <9>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
simdbg@8003c000 {
|
||||
reg = <0x8003c000 200>;
|
||||
reg = <0x8003c000 0x200>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
simgpmisel@8003c200 {
|
||||
reg = <0x8003c200 100>;
|
||||
reg = <0x8003c200 0x100>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
simsspsel@8003c300 {
|
||||
reg = <0x8003c300 100>;
|
||||
reg = <0x8003c300 0x100>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
simmemsel@8003c400 {
|
||||
reg = <0x8003c400 100>;
|
||||
reg = <0x8003c400 0x100>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
gpiomon@8003c500 {
|
||||
reg = <0x8003c500 100>;
|
||||
reg = <0x8003c500 0x100>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
simenet@8003c700 {
|
||||
reg = <0x8003c700 100>;
|
||||
reg = <0x8003c700 0x100>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
armjtag@8003c800 {
|
||||
reg = <0x8003c800 100>;
|
||||
reg = <0x8003c800 0x100>;
|
||||
status = "disabled";
|
||||
};
|
||||
};
|
||||
|
|
@ -612,45 +612,45 @@
|
|||
ranges;
|
||||
|
||||
clkctl@80040000 {
|
||||
reg = <0x80040000 2000>;
|
||||
reg = <0x80040000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
saif0: saif@80042000 {
|
||||
compatible = "fsl,imx28-saif";
|
||||
reg = <0x80042000 2000>;
|
||||
reg = <0x80042000 0x2000>;
|
||||
interrupts = <59 80>;
|
||||
fsl,saif-dma-channel = <4>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
power@80044000 {
|
||||
reg = <0x80044000 2000>;
|
||||
reg = <0x80044000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
saif1: saif@80046000 {
|
||||
compatible = "fsl,imx28-saif";
|
||||
reg = <0x80046000 2000>;
|
||||
reg = <0x80046000 0x2000>;
|
||||
interrupts = <58 81>;
|
||||
fsl,saif-dma-channel = <5>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
lradc@80050000 {
|
||||
reg = <0x80050000 2000>;
|
||||
reg = <0x80050000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
spdif@80054000 {
|
||||
reg = <0x80054000 2000>;
|
||||
reg = <0x80054000 0x2000>;
|
||||
interrupts = <45 66>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
rtc@80056000 {
|
||||
compatible = "fsl,imx28-rtc", "fsl,stmp3xxx-rtc";
|
||||
reg = <0x80056000 2000>;
|
||||
reg = <0x80056000 0x2000>;
|
||||
interrupts = <29>;
|
||||
};
|
||||
|
||||
|
|
@ -658,7 +658,7 @@
|
|||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
compatible = "fsl,imx28-i2c";
|
||||
reg = <0x80058000 2000>;
|
||||
reg = <0x80058000 0x2000>;
|
||||
interrupts = <111 68>;
|
||||
clock-frequency = <100000>;
|
||||
status = "disabled";
|
||||
|
|
@ -668,7 +668,7 @@
|
|||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
compatible = "fsl,imx28-i2c";
|
||||
reg = <0x8005a000 2000>;
|
||||
reg = <0x8005a000 0x2000>;
|
||||
interrupts = <110 69>;
|
||||
clock-frequency = <100000>;
|
||||
status = "disabled";
|
||||
|
|
@ -676,14 +676,14 @@
|
|||
|
||||
pwm: pwm@80064000 {
|
||||
compatible = "fsl,imx28-pwm", "fsl,imx23-pwm";
|
||||
reg = <0x80064000 2000>;
|
||||
reg = <0x80064000 0x2000>;
|
||||
#pwm-cells = <2>;
|
||||
fsl,pwm-number = <8>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
timrot@80068000 {
|
||||
reg = <0x80068000 2000>;
|
||||
reg = <0x80068000 0x2000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -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";
|
||||
};
|
||||
|
||||
|
|
@ -53,7 +53,7 @@
|
|||
spi-max-frequency = <6000000>;
|
||||
reg = <0>;
|
||||
interrupt-parent = <&gpio1>;
|
||||
interrupts = <8>;
|
||||
interrupts = <8 0x4>;
|
||||
|
||||
regulators {
|
||||
sw1_reg: sw1 {
|
||||
|
|
|
|||
|
|
@ -17,6 +17,10 @@
|
|||
serial0 = &uart1;
|
||||
serial1 = &uart2;
|
||||
serial2 = &uart3;
|
||||
gpio0 = &gpio1;
|
||||
gpio1 = &gpio2;
|
||||
gpio2 = &gpio3;
|
||||
gpio3 = &gpio4;
|
||||
};
|
||||
|
||||
tzic: tz-interrupt-controller@e0000000 {
|
||||
|
|
|
|||
|
|
@ -64,12 +64,32 @@
|
|||
reg = <0xf4000000 0x2000000>;
|
||||
phy-mode = "mii";
|
||||
interrupt-parent = <&gpio2>;
|
||||
interrupts = <31>;
|
||||
interrupts = <31 0x8>;
|
||||
reg-io-width = <4>;
|
||||
/*
|
||||
* VDD33A and VDDVARIO of LAN9220 are supplied by
|
||||
* SW4_3V3 of LTC3589. Before the regulator driver
|
||||
* for this PMIC is available, we use a fixed dummy
|
||||
* 3V3 regulator to get LAN9220 driver probing work.
|
||||
*/
|
||||
vdd33a-supply = <®_3p3v>;
|
||||
vddvario-supply = <®_3p3v>;
|
||||
smsc,irq-push-pull;
|
||||
};
|
||||
};
|
||||
|
||||
regulators {
|
||||
compatible = "simple-bus";
|
||||
|
||||
reg_3p3v: 3p3v {
|
||||
compatible = "regulator-fixed";
|
||||
regulator-name = "3P3V";
|
||||
regulator-min-microvolt = <3300000>;
|
||||
regulator-max-microvolt = <3300000>;
|
||||
regulator-always-on;
|
||||
};
|
||||
};
|
||||
|
||||
gpio-keys {
|
||||
compatible = "gpio-keys";
|
||||
|
||||
|
|
|
|||
|
|
@ -19,6 +19,13 @@
|
|||
serial2 = &uart3;
|
||||
serial3 = &uart4;
|
||||
serial4 = &uart5;
|
||||
gpio0 = &gpio1;
|
||||
gpio1 = &gpio2;
|
||||
gpio2 = &gpio3;
|
||||
gpio3 = &gpio4;
|
||||
gpio4 = &gpio5;
|
||||
gpio5 = &gpio6;
|
||||
gpio6 = &gpio7;
|
||||
};
|
||||
|
||||
tzic: tz-interrupt-controller@0fffc000 {
|
||||
|
|
|
|||
|
|
@ -53,6 +53,7 @@
|
|||
fsl,pins = <
|
||||
144 0x80000000 /* MX6Q_PAD_EIM_D22__GPIO_3_22 */
|
||||
121 0x80000000 /* MX6Q_PAD_EIM_D19__GPIO_3_19 */
|
||||
953 0x80000000 /* MX6Q_PAD_GPIO_0__CCM_CLKO */
|
||||
>;
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -19,6 +19,13 @@
|
|||
serial2 = &uart3;
|
||||
serial3 = &uart4;
|
||||
serial4 = &uart5;
|
||||
gpio0 = &gpio1;
|
||||
gpio1 = &gpio2;
|
||||
gpio2 = &gpio3;
|
||||
gpio3 = &gpio4;
|
||||
gpio4 = &gpio5;
|
||||
gpio5 = &gpio6;
|
||||
gpio6 = &gpio7;
|
||||
};
|
||||
|
||||
cpus {
|
||||
|
|
|
|||
|
|
@ -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 {
|
||||
|
|
|
|||
|
|
@ -192,6 +192,7 @@ CONFIG_RTC_DRV_MC13XXX=y
|
|||
CONFIG_RTC_DRV_MXC=y
|
||||
CONFIG_DMADEVICES=y
|
||||
CONFIG_IMX_SDMA=y
|
||||
CONFIG_MXS_DMA=y
|
||||
CONFIG_COMMON_CLK_DEBUG=y
|
||||
# CONFIG_IOMMU_SUPPORT is not set
|
||||
CONFIG_EXT2_FS=y
|
||||
|
|
|
|||
|
|
@ -34,7 +34,6 @@ CONFIG_NO_HZ=y
|
|||
CONFIG_HIGH_RES_TIMERS=y
|
||||
CONFIG_PREEMPT_VOLUNTARY=y
|
||||
CONFIG_AEABI=y
|
||||
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
|
||||
CONFIG_AUTO_ZRELADDR=y
|
||||
CONFIG_FPE_NWFPE=y
|
||||
CONFIG_NET=y
|
||||
|
|
|
|||
|
|
@ -7,7 +7,7 @@ CONFIG_SYSFS_DEPRECATED_V2=y
|
|||
CONFIG_BLK_DEV_INITRD=y
|
||||
CONFIG_EXPERT=y
|
||||
# CONFIG_KALLSYMS is not set
|
||||
# CONFIG_BUG is not set
|
||||
# CONFIG_BUGVERBOSE is not set
|
||||
# CONFIG_ELF_CORE is not set
|
||||
# CONFIG_SHMEM is not set
|
||||
CONFIG_SLOB=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
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -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)
|
||||
|
|
|
|||
|
|
@ -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;
|
||||
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
||||
|
|
|
|||
|
|
@ -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}
|
||||
|
||||
|
||||
|
|
@ -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}
|
||||
|
|
@ -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
|
||||
|
||||
|
|
@ -162,38 +162,6 @@ static void __init davinci_ntosd2_map_io(void)
|
|||
dm644x_init();
|
||||
}
|
||||
|
||||
/*
|
||||
I2C initialization
|
||||
*/
|
||||
static struct davinci_i2c_platform_data ntosd2_i2c_pdata = {
|
||||
.bus_freq = 20 /* kHz */,
|
||||
.bus_delay = 100 /* usec */,
|
||||
};
|
||||
|
||||
static struct i2c_board_info __initdata ntosd2_i2c_info[] = {
|
||||
};
|
||||
|
||||
static int ntosd2_init_i2c(void)
|
||||
{
|
||||
int status;
|
||||
|
||||
davinci_init_i2c(&ntosd2_i2c_pdata);
|
||||
status = gpio_request(NTOSD2_MSP430_IRQ, ntosd2_i2c_info[0].type);
|
||||
if (status == 0) {
|
||||
status = gpio_direction_input(NTOSD2_MSP430_IRQ);
|
||||
if (status == 0) {
|
||||
status = gpio_to_irq(NTOSD2_MSP430_IRQ);
|
||||
if (status > 0) {
|
||||
ntosd2_i2c_info[0].irq = status;
|
||||
i2c_register_board_info(1,
|
||||
ntosd2_i2c_info,
|
||||
ARRAY_SIZE(ntosd2_i2c_info));
|
||||
}
|
||||
}
|
||||
}
|
||||
return status;
|
||||
}
|
||||
|
||||
static struct davinci_mmc_config davinci_ntosd2_mmc_config = {
|
||||
.wires = 4,
|
||||
.version = MMC_CTLR_VERSION_1
|
||||
|
|
@ -218,7 +186,6 @@ static __init void davinci_ntosd2_init(void)
|
|||
{
|
||||
struct clk *aemif_clk;
|
||||
struct davinci_soc_info *soc_info = &davinci_soc_info;
|
||||
int status;
|
||||
|
||||
aemif_clk = clk_get(NULL, "aemif");
|
||||
clk_enable(aemif_clk);
|
||||
|
|
@ -242,12 +209,6 @@ static __init void davinci_ntosd2_init(void)
|
|||
platform_add_devices(davinci_ntosd2_devices,
|
||||
ARRAY_SIZE(davinci_ntosd2_devices));
|
||||
|
||||
/* Initialize I2C interface specific for this board */
|
||||
status = ntosd2_init_i2c();
|
||||
if (status < 0)
|
||||
pr_warning("davinci_ntosd2_init: msp430 irq setup failed:"
|
||||
" %d\n", status);
|
||||
|
||||
davinci_serial_init(&uart_config);
|
||||
dm644x_init_asp(&dm644x_ntosd2_snd_data);
|
||||
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
|
||||
|
|
|
|||
|
|
@ -115,7 +115,7 @@ static __init int exynos_pm_dt_parse_domains(void)
|
|||
}
|
||||
#endif /* CONFIG_OF */
|
||||
|
||||
static __init void exynos_pm_add_dev_to_genpd(struct platform_device *pdev,
|
||||
static __init __maybe_unused void exynos_pm_add_dev_to_genpd(struct platform_device *pdev,
|
||||
struct exynos_pm_domain *pd)
|
||||
{
|
||||
if (pdev->dev.bus) {
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -223,7 +223,7 @@ int __init mx27_clocks_init(unsigned long fref)
|
|||
clk_register_clkdev(clk[per3_gate], "per", "imx-fb.0");
|
||||
clk_register_clkdev(clk[lcdc_ipg_gate], "ipg", "imx-fb.0");
|
||||
clk_register_clkdev(clk[lcdc_ahb_gate], "ahb", "imx-fb.0");
|
||||
clk_register_clkdev(clk[csi_ahb_gate], NULL, "mx2-camera.0");
|
||||
clk_register_clkdev(clk[csi_ahb_gate], "ahb", "mx2-camera.0");
|
||||
clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
|
||||
clk_register_clkdev(clk[usb_ipg_gate], "ipg", "fsl-usb2-udc");
|
||||
clk_register_clkdev(clk[usb_ahb_gate], "ahb", "fsl-usb2-udc");
|
||||
|
|
@ -250,8 +250,10 @@ int __init mx27_clocks_init(unsigned long fref)
|
|||
clk_register_clkdev(clk[i2c2_ipg_gate], NULL, "imx-i2c.1");
|
||||
clk_register_clkdev(clk[owire_ipg_gate], NULL, "mxc_w1.0");
|
||||
clk_register_clkdev(clk[kpp_ipg_gate], NULL, "imx-keypad");
|
||||
clk_register_clkdev(clk[emma_ahb_gate], "ahb", "imx-emma");
|
||||
clk_register_clkdev(clk[emma_ipg_gate], "ipg", "imx-emma");
|
||||
clk_register_clkdev(clk[emma_ahb_gate], "emma-ahb", "mx2-camera.0");
|
||||
clk_register_clkdev(clk[emma_ipg_gate], "emma-ipg", "mx2-camera.0");
|
||||
clk_register_clkdev(clk[emma_ahb_gate], "ahb", "m2m-emmaprp.0");
|
||||
clk_register_clkdev(clk[emma_ipg_gate], "ipg", "m2m-emmaprp.0");
|
||||
clk_register_clkdev(clk[iim_ipg_gate], "iim", NULL);
|
||||
clk_register_clkdev(clk[gpio_ipg_gate], "gpio", NULL);
|
||||
clk_register_clkdev(clk[brom_ahb_gate], "brom", NULL);
|
||||
|
|
|
|||
|
|
@ -130,7 +130,7 @@ int __init mx31_clocks_init(unsigned long fref)
|
|||
clk_register_clkdev(clk[nfc], NULL, "mxc_nand.0");
|
||||
clk_register_clkdev(clk[ipu_gate], NULL, "ipu-core");
|
||||
clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb");
|
||||
clk_register_clkdev(clk[kpp_gate], "kpp", NULL);
|
||||
clk_register_clkdev(clk[kpp_gate], NULL, "imx-keypad");
|
||||
clk_register_clkdev(clk[usb_div_post], "per", "mxc-ehci.0");
|
||||
clk_register_clkdev(clk[usb_gate], "ahb", "mxc-ehci.0");
|
||||
clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.0");
|
||||
|
|
|
|||
|
|
@ -303,6 +303,7 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
|
|||
clk_prepare_enable(clk[aips_tz2]); /* fec */
|
||||
clk_prepare_enable(clk[spba]);
|
||||
clk_prepare_enable(clk[emi_fast_gate]); /* fec */
|
||||
clk_prepare_enable(clk[emi_slow_gate]); /* eim */
|
||||
clk_prepare_enable(clk[tmax1]);
|
||||
clk_prepare_enable(clk[tmax2]); /* esdhc2, fec */
|
||||
clk_prepare_enable(clk[tmax3]); /* esdhc1, esdhc4 */
|
||||
|
|
|
|||
|
|
@ -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)
|
||||
|
|
|
|||
|
|
@ -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();
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@
|
|||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/export.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/irq.h>
|
||||
|
|
|
|||
|
|
@ -456,7 +456,7 @@ static void __init ap_init_timer(void)
|
|||
|
||||
clk = clk_get_sys("ap_timer", NULL);
|
||||
BUG_ON(IS_ERR(clk));
|
||||
clk_enable(clk);
|
||||
clk_prepare_enable(clk);
|
||||
rate = clk_get_rate(clk);
|
||||
|
||||
writel(0, TIMER0_VA_BASE + TIMER_CTRL);
|
||||
|
|
|
|||
|
|
@ -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
|
||||
dbt-$(CONFIG_MACH_LSXL_DT) += kirkwood-lschlv2.dtb
|
||||
dbt-$(CONFIG_MACH_LSXL_DT) += kirkwood-lsxhl.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);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -2,9 +2,6 @@ if ARCH_MXS
|
|||
|
||||
source "arch/arm/mach-mxs/devices/Kconfig"
|
||||
|
||||
config MXS_OCOTP
|
||||
bool
|
||||
|
||||
config SOC_IMX23
|
||||
bool
|
||||
select ARM_AMBA
|
||||
|
|
@ -66,7 +63,6 @@ config MACH_MX28EVK
|
|||
select MXS_HAVE_PLATFORM_MXS_SAIF
|
||||
select MXS_HAVE_PLATFORM_MXS_I2C
|
||||
select MXS_HAVE_PLATFORM_RTC_STMP3XXX
|
||||
select MXS_OCOTP
|
||||
help
|
||||
Include support for MX28EVK platform. This includes specific
|
||||
configurations for the board and its peripherals.
|
||||
|
|
@ -94,7 +90,6 @@ config MODULE_M28
|
|||
select MXS_HAVE_PLATFORM_MXS_I2C
|
||||
select MXS_HAVE_PLATFORM_MXS_MMC
|
||||
select MXS_HAVE_PLATFORM_MXSFB
|
||||
select MXS_OCOTP
|
||||
|
||||
config MODULE_APX4
|
||||
bool
|
||||
|
|
@ -106,7 +101,6 @@ config MODULE_APX4
|
|||
select MXS_HAVE_PLATFORM_MXS_I2C
|
||||
select MXS_HAVE_PLATFORM_MXS_MMC
|
||||
select MXS_HAVE_PLATFORM_MXS_SAIF
|
||||
select MXS_OCOTP
|
||||
|
||||
config MACH_TX28
|
||||
bool "Ka-Ro TX28 module"
|
||||
|
|
|
|||
|
|
@ -1,7 +1,6 @@
|
|||
# Common support
|
||||
obj-y := devices.o icoll.o iomux.o system.o timer.o mm.o
|
||||
obj-y := devices.o icoll.o iomux.o ocotp.o system.o timer.o mm.o
|
||||
|
||||
obj-$(CONFIG_MXS_OCOTP) += ocotp.o
|
||||
obj-$(CONFIG_PM) += pm.o
|
||||
|
||||
obj-$(CONFIG_MACH_MXS_DT) += mach-mxs.o
|
||||
|
|
|
|||
|
|
@ -62,13 +62,14 @@ config ARCH_OMAP4
|
|||
select PM_OPP if PM
|
||||
select USB_ARCH_HAS_EHCI if USB_SUPPORT
|
||||
select ARM_CPU_SUSPEND if PM
|
||||
select ARCH_NEEDS_CPU_IDLE_COUPLED
|
||||
select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
|
||||
|
||||
config SOC_OMAP5
|
||||
bool "TI OMAP5"
|
||||
select CPU_V7
|
||||
select ARM_GIC
|
||||
select HAVE_SMP
|
||||
select ARM_CPU_SUSPEND if PM
|
||||
|
||||
comment "OMAP Core Type"
|
||||
depends on ARCH_OMAP2
|
||||
|
|
|
|||
|
|
@ -554,6 +554,8 @@ static const struct usbhs_omap_board_data igep3_usbhs_bdata __initconst = {
|
|||
|
||||
#ifdef CONFIG_OMAP_MUX
|
||||
static struct omap_board_mux board_mux[] __initdata = {
|
||||
/* SMSC9221 LAN Controller ETH IRQ (GPIO_176) */
|
||||
OMAP3_MUX(MCSPI1_CS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
|
||||
{ .reg_offset = OMAP_MUX_TERMINATOR },
|
||||
};
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -58,6 +58,7 @@
|
|||
#include "hsmmc.h"
|
||||
#include "common-board-devices.h"
|
||||
|
||||
#define OMAP3_EVM_TS_GPIO 175
|
||||
#define OMAP3_EVM_EHCI_VBUS 22
|
||||
#define OMAP3_EVM_EHCI_SELECT 61
|
||||
|
||||
|
|
|
|||
|
|
@ -35,16 +35,6 @@ static struct omap2_mcspi_device_config ads7846_mcspi_config = {
|
|||
.turbo_mode = 0,
|
||||
};
|
||||
|
||||
/*
|
||||
* ADS7846 driver maybe request a gpio according to the value
|
||||
* of pdata->get_pendown_state, but we have done this. So set
|
||||
* get_pendown_state to avoid twice gpio requesting.
|
||||
*/
|
||||
static int omap3_get_pendown_state(void)
|
||||
{
|
||||
return !gpio_get_value(OMAP3_EVM_TS_GPIO);
|
||||
}
|
||||
|
||||
static struct ads7846_platform_data ads7846_config = {
|
||||
.x_max = 0x0fff,
|
||||
.y_max = 0x0fff,
|
||||
|
|
@ -55,7 +45,6 @@ static struct ads7846_platform_data ads7846_config = {
|
|||
.debounce_rep = 1,
|
||||
.gpio_pendown = -EINVAL,
|
||||
.keep_vref_on = 1,
|
||||
.get_pendown_state = &omap3_get_pendown_state,
|
||||
};
|
||||
|
||||
static struct spi_board_info ads7846_spi_board_info __initdata = {
|
||||
|
|
|
|||
|
|
@ -4,7 +4,6 @@
|
|||
#include "twl-common.h"
|
||||
|
||||
#define NAND_BLOCK_SIZE SZ_128K
|
||||
#define OMAP3_EVM_TS_GPIO 175
|
||||
|
||||
struct mtd_partition;
|
||||
struct ads7846_platform_data;
|
||||
|
|
|
|||
|
|
@ -238,8 +238,9 @@ int __init omap4_idle_init(void)
|
|||
for_each_cpu(cpu_id, cpu_online_mask) {
|
||||
dev = &per_cpu(omap4_idle_dev, cpu_id);
|
||||
dev->cpu = cpu_id;
|
||||
#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
|
||||
dev->coupled_cpus = *cpu_online_mask;
|
||||
|
||||
#endif
|
||||
cpuidle_register_driver(&omap4_idle_driver);
|
||||
|
||||
if (cpuidle_register_device(dev)) {
|
||||
|
|
|
|||
|
|
@ -127,7 +127,6 @@ struct omap_mux_partition {
|
|||
* @gpio: GPIO number
|
||||
* @muxnames: available signal modes for a ball
|
||||
* @balls: available balls on the package
|
||||
* @partition: mux partition
|
||||
*/
|
||||
struct omap_mux {
|
||||
u16 reg_offset;
|
||||
|
|
|
|||
|
|
@ -94,7 +94,7 @@ int __init omap4_opp_init(void)
|
|||
{
|
||||
int r = -ENODEV;
|
||||
|
||||
if (!cpu_is_omap44xx())
|
||||
if (!cpu_is_omap443x())
|
||||
return r;
|
||||
|
||||
r = omap_init_opp_table(omap44xx_opp_def_list,
|
||||
|
|
|
|||
|
|
@ -272,21 +272,16 @@ void omap_sram_idle(void)
|
|||
per_next_state = pwrdm_read_next_pwrst(per_pwrdm);
|
||||
core_next_state = pwrdm_read_next_pwrst(core_pwrdm);
|
||||
|
||||
if (mpu_next_state < PWRDM_POWER_ON) {
|
||||
pwrdm_pre_transition(mpu_pwrdm);
|
||||
pwrdm_pre_transition(neon_pwrdm);
|
||||
}
|
||||
pwrdm_pre_transition(NULL);
|
||||
|
||||
/* PER */
|
||||
if (per_next_state < PWRDM_POWER_ON) {
|
||||
pwrdm_pre_transition(per_pwrdm);
|
||||
per_going_off = (per_next_state == PWRDM_POWER_OFF) ? 1 : 0;
|
||||
omap2_gpio_prepare_for_idle(per_going_off);
|
||||
}
|
||||
|
||||
/* CORE */
|
||||
if (core_next_state < PWRDM_POWER_ON) {
|
||||
pwrdm_pre_transition(core_pwrdm);
|
||||
if (core_next_state == PWRDM_POWER_OFF) {
|
||||
omap3_core_save_context();
|
||||
omap3_cm_save_context();
|
||||
|
|
@ -339,20 +334,14 @@ void omap_sram_idle(void)
|
|||
omap2_prm_clear_mod_reg_bits(OMAP3430_AUTO_OFF_MASK,
|
||||
OMAP3430_GR_MOD,
|
||||
OMAP3_PRM_VOLTCTRL_OFFSET);
|
||||
pwrdm_post_transition(core_pwrdm);
|
||||
}
|
||||
omap3_intc_resume_idle();
|
||||
|
||||
/* PER */
|
||||
if (per_next_state < PWRDM_POWER_ON) {
|
||||
omap2_gpio_resume_after_idle();
|
||||
pwrdm_post_transition(per_pwrdm);
|
||||
}
|
||||
pwrdm_post_transition(NULL);
|
||||
|
||||
if (mpu_next_state < PWRDM_POWER_ON) {
|
||||
pwrdm_post_transition(mpu_pwrdm);
|
||||
pwrdm_post_transition(neon_pwrdm);
|
||||
}
|
||||
/* PER */
|
||||
if (per_next_state < PWRDM_POWER_ON)
|
||||
omap2_gpio_resume_after_idle();
|
||||
}
|
||||
|
||||
static void omap3_pm_idle(void)
|
||||
|
|
|
|||
|
|
@ -56,9 +56,13 @@ ppa_por_params:
|
|||
* The restore function pointer is stored at CPUx_WAKEUP_NS_PA_ADDR_OFFSET.
|
||||
* It returns to the caller for CPU INACTIVE and ON power states or in case
|
||||
* CPU failed to transition to targeted OFF/DORMANT state.
|
||||
*
|
||||
* omap4_finish_suspend() calls v7_flush_dcache_all() which doesn't save
|
||||
* stack frame and it expects the caller to take care of it. Hence the entire
|
||||
* stack frame is saved to avoid possible stack corruption.
|
||||
*/
|
||||
ENTRY(omap4_finish_suspend)
|
||||
stmfd sp!, {lr}
|
||||
stmfd sp!, {r4-r12, lr}
|
||||
cmp r0, #0x0
|
||||
beq do_WFI @ No lowpower state, jump to WFI
|
||||
|
||||
|
|
@ -226,7 +230,7 @@ scu_gp_clear:
|
|||
skip_scu_gp_clear:
|
||||
isb
|
||||
dsb
|
||||
ldmfd sp!, {pc}
|
||||
ldmfd sp!, {r4-r12, pc}
|
||||
ENDPROC(omap4_finish_suspend)
|
||||
|
||||
/*
|
||||
|
|
|
|||
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