mirror of
https://github.com/torvalds/linux.git
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Merge branch 'v3.1-rc10' into for-3.2/core
Conflicts: block/blk-core.c include/linux/blkdev.h Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
commit
5c04b426f2
@ -272,6 +272,8 @@ printk-formats.txt
|
||||
- how to get printk format specifiers right
|
||||
prio_tree.txt
|
||||
- info on radix-priority-search-tree use for indexing vmas.
|
||||
ramoops.txt
|
||||
- documentation of the ramoops oops/panic logging module.
|
||||
rbtree.txt
|
||||
- info on what red-black trees are and what they are for.
|
||||
robust-futex-ABI.txt
|
||||
|
13
Documentation/ABI/testing/sysfs-class-scsi_host
Normal file
13
Documentation/ABI/testing/sysfs-class-scsi_host
Normal file
@ -0,0 +1,13 @@
|
||||
What: /sys/class/scsi_host/hostX/isci_id
|
||||
Date: June 2011
|
||||
Contact: Dave Jiang <dave.jiang@intel.com>
|
||||
Description:
|
||||
This file contains the enumerated host ID for the Intel
|
||||
SCU controller. The Intel(R) C600 Series Chipset SATA/SAS
|
||||
Storage Control Unit embeds up to two 4-port controllers in
|
||||
a single PCI device. The controllers are enumerated in order
|
||||
which usually means the lowest number scsi_host corresponds
|
||||
with the first controller, but this association is not
|
||||
guaranteed. The 'isci_id' attribute unambiguously identifies
|
||||
the controller index: '0' for the first controller,
|
||||
'1' for the second.
|
@ -1455,7 +1455,7 @@ Applicable to the H264 encoder.</entry>
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-h264-vui-sar-idc">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_video_h264_vui_sar_idc</entry>
|
||||
</row>
|
||||
@ -1561,7 +1561,7 @@ Applicable to the H264 encoder.</entry>
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-h264-level">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LEVEL</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_video_h264_level</entry>
|
||||
</row>
|
||||
@ -1641,7 +1641,7 @@ Possible values are:</entry>
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-mpeg4-level">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_video_mpeg4_level</entry>
|
||||
</row>
|
||||
@ -1689,9 +1689,9 @@ Possible values are:</entry>
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-h264-profile">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_PROFILE</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_h264_profile</entry>
|
||||
<entry>enum v4l2_mpeg_video_h264_profile</entry>
|
||||
</row>
|
||||
<row><entry spanname="descr">The profile information for H264.
|
||||
Applicable to the H264 encoder.
|
||||
@ -1774,9 +1774,9 @@ Possible values are:</entry>
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-mpeg4-profile">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_mpeg4_profile</entry>
|
||||
<entry>enum v4l2_mpeg_video_mpeg4_profile</entry>
|
||||
</row>
|
||||
<row><entry spanname="descr">The profile information for MPEG4.
|
||||
Applicable to the MPEG4 encoder.
|
||||
@ -1820,9 +1820,9 @@ Applicable to the encoder.
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-multi-slice-mode">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_multi_slice_mode</entry>
|
||||
<entry>enum v4l2_mpeg_video_multi_slice_mode</entry>
|
||||
</row>
|
||||
<row><entry spanname="descr">Determines how the encoder should handle division of frame into slices.
|
||||
Applicable to the encoder.
|
||||
@ -1868,9 +1868,9 @@ Applicable to the encoder.</entry>
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-h264-loop-filter-mode">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_h264_loop_filter_mode</entry>
|
||||
<entry>enum v4l2_mpeg_video_h264_loop_filter_mode</entry>
|
||||
</row>
|
||||
<row><entry spanname="descr">Loop filter mode for H264 encoder.
|
||||
Possible values are:</entry>
|
||||
@ -1913,9 +1913,9 @@ Applicable to the H264 encoder.</entry>
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-h264-entropy-mode">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_h264_symbol_mode</entry>
|
||||
<entry>enum v4l2_mpeg_video_h264_entropy_mode</entry>
|
||||
</row>
|
||||
<row><entry spanname="descr">Entropy coding mode for H264 - CABAC/CAVALC.
|
||||
Applicable to the H264 encoder.
|
||||
@ -2140,9 +2140,9 @@ previous frames. Applicable to the H264 encoder.</entry>
|
||||
</row>
|
||||
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-video-header-mode">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_HEADER_MODE</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_header_mode</entry>
|
||||
<entry>enum v4l2_mpeg_video_header_mode</entry>
|
||||
</row>
|
||||
<row><entry spanname="descr">Determines whether the header is returned as the first buffer or is
|
||||
it returned together with the first frame. Applicable to encoders.
|
||||
@ -2320,9 +2320,9 @@ Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPE
|
||||
Applicable to the H264 encoder.</entry>
|
||||
</row>
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-mfc51-video-frame-skip-mode">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_mfc51_frame_skip_mode</entry>
|
||||
<entry>enum v4l2_mpeg_mfc51_video_frame_skip_mode</entry>
|
||||
</row>
|
||||
<row><entry spanname="descr">
|
||||
Indicates in what conditions the encoder should skip frames. If encoding a frame would cause the encoded stream to be larger then
|
||||
@ -2361,9 +2361,9 @@ the stream will meet tight bandwidth contraints. Applicable to encoders.
|
||||
</entry>
|
||||
</row>
|
||||
<row><entry></entry></row>
|
||||
<row>
|
||||
<row id="v4l2-mpeg-mfc51-video-force-frame-type">
|
||||
<entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE</constant> </entry>
|
||||
<entry>enum v4l2_mpeg_mfc51_force_frame_type</entry>
|
||||
<entry>enum v4l2_mpeg_mfc51_video_force_frame_type</entry>
|
||||
</row>
|
||||
<row><entry spanname="descr">Force a frame type for the next queued buffer. Applicable to encoders.
|
||||
Possible values are:</entry>
|
||||
|
@ -45,7 +45,7 @@ arrived in memory (this becomes more likely with devices behind PCI-PCI
|
||||
bridges). In order to ensure that all the data has arrived in memory,
|
||||
the interrupt handler must read a register on the device which raised
|
||||
the interrupt. PCI transaction ordering rules require that all the data
|
||||
arrives in memory before the value can be returned from the register.
|
||||
arrive in memory before the value may be returned from the register.
|
||||
Using MSIs avoids this problem as the interrupt-generating write cannot
|
||||
pass the data writes, so by the time the interrupt is raised, the driver
|
||||
knows that all the data has arrived in memory.
|
||||
@ -86,13 +86,13 @@ device.
|
||||
|
||||
int pci_enable_msi(struct pci_dev *dev)
|
||||
|
||||
A successful call will allocate ONE interrupt to the device, regardless
|
||||
of how many MSIs the device supports. The device will be switched from
|
||||
A successful call allocates ONE interrupt to the device, regardless
|
||||
of how many MSIs the device supports. The device is switched from
|
||||
pin-based interrupt mode to MSI mode. The dev->irq number is changed
|
||||
to a new number which represents the message signaled interrupt.
|
||||
This function should be called before the driver calls request_irq()
|
||||
since enabling MSIs disables the pin-based IRQ and the driver will not
|
||||
receive interrupts on the old interrupt.
|
||||
to a new number which represents the message signaled interrupt;
|
||||
consequently, this function should be called before the driver calls
|
||||
request_irq(), because an MSI is delivered via a vector that is
|
||||
different from the vector of a pin-based interrupt.
|
||||
|
||||
4.2.2 pci_enable_msi_block
|
||||
|
||||
@ -111,20 +111,20 @@ the device are in the range dev->irq to dev->irq + count - 1.
|
||||
|
||||
If this function returns a negative number, it indicates an error and
|
||||
the driver should not attempt to request any more MSI interrupts for
|
||||
this device. If this function returns a positive number, it will be
|
||||
less than 'count' and indicate the number of interrupts that could have
|
||||
been allocated. In neither case will the irq value have been
|
||||
updated, nor will the device have been switched into MSI mode.
|
||||
this device. If this function returns a positive number, it is
|
||||
less than 'count' and indicates the number of interrupts that could have
|
||||
been allocated. In neither case is the irq value updated or the device
|
||||
switched into MSI mode.
|
||||
|
||||
The device driver must decide what action to take if
|
||||
pci_enable_msi_block() returns a value less than the number asked for.
|
||||
Some devices can make use of fewer interrupts than the maximum they
|
||||
request; in this case the driver should call pci_enable_msi_block()
|
||||
pci_enable_msi_block() returns a value less than the number requested.
|
||||
For instance, the driver could still make use of fewer interrupts;
|
||||
in this case the driver should call pci_enable_msi_block()
|
||||
again. Note that it is not guaranteed to succeed, even when the
|
||||
'count' has been reduced to the value returned from a previous call to
|
||||
pci_enable_msi_block(). This is because there are multiple constraints
|
||||
on the number of vectors that can be allocated; pci_enable_msi_block()
|
||||
will return as soon as it finds any constraint that doesn't allow the
|
||||
returns as soon as it finds any constraint that doesn't allow the
|
||||
call to succeed.
|
||||
|
||||
4.2.3 pci_disable_msi
|
||||
@ -137,10 +137,10 @@ interrupt number and frees the previously allocated message signaled
|
||||
interrupt(s). The interrupt may subsequently be assigned to another
|
||||
device, so drivers should not cache the value of dev->irq.
|
||||
|
||||
A device driver must always call free_irq() on the interrupt(s)
|
||||
for which it has called request_irq() before calling this function.
|
||||
Failure to do so will result in a BUG_ON(), the device will be left with
|
||||
MSI enabled and will leak its vector.
|
||||
Before calling this function, a device driver must always call free_irq()
|
||||
on any interrupt for which it previously called request_irq().
|
||||
Failure to do so results in a BUG_ON(), leaving the device with
|
||||
MSI enabled and thus leaking its vector.
|
||||
|
||||
4.3 Using MSI-X
|
||||
|
||||
@ -155,10 +155,10 @@ struct msix_entry {
|
||||
};
|
||||
|
||||
This allows for the device to use these interrupts in a sparse fashion;
|
||||
for example it could use interrupts 3 and 1027 and allocate only a
|
||||
for example, it could use interrupts 3 and 1027 and yet allocate only a
|
||||
two-element array. The driver is expected to fill in the 'entry' value
|
||||
in each element of the array to indicate which entries it wants the kernel
|
||||
to assign interrupts for. It is invalid to fill in two entries with the
|
||||
in each element of the array to indicate for which entries the kernel
|
||||
should assign interrupts; it is invalid to fill in two entries with the
|
||||
same number.
|
||||
|
||||
4.3.1 pci_enable_msix
|
||||
@ -168,10 +168,11 @@ int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec)
|
||||
Calling this function asks the PCI subsystem to allocate 'nvec' MSIs.
|
||||
The 'entries' argument is a pointer to an array of msix_entry structs
|
||||
which should be at least 'nvec' entries in size. On success, the
|
||||
function will return 0 and the device will have been switched into
|
||||
MSI-X interrupt mode. The 'vector' elements in each entry will have
|
||||
been filled in with the interrupt number. The driver should then call
|
||||
request_irq() for each 'vector' that it decides to use.
|
||||
device is switched into MSI-X mode and the function returns 0.
|
||||
The 'vector' member in each entry is populated with the interrupt number;
|
||||
the driver should then call request_irq() for each 'vector' that it
|
||||
decides to use. The device driver is responsible for keeping track of the
|
||||
interrupts assigned to the MSI-X vectors so it can free them again later.
|
||||
|
||||
If this function returns a negative number, it indicates an error and
|
||||
the driver should not attempt to allocate any more MSI-X interrupts for
|
||||
@ -181,16 +182,14 @@ below.
|
||||
|
||||
This function, in contrast with pci_enable_msi(), does not adjust
|
||||
dev->irq. The device will not generate interrupts for this interrupt
|
||||
number once MSI-X is enabled. The device driver is responsible for
|
||||
keeping track of the interrupts assigned to the MSI-X vectors so it can
|
||||
free them again later.
|
||||
number once MSI-X is enabled.
|
||||
|
||||
Device drivers should normally call this function once per device
|
||||
during the initialization phase.
|
||||
|
||||
It is ideal if drivers can cope with a variable number of MSI-X interrupts,
|
||||
It is ideal if drivers can cope with a variable number of MSI-X interrupts;
|
||||
there are many reasons why the platform may not be able to provide the
|
||||
exact number a driver asks for.
|
||||
exact number that a driver asks for.
|
||||
|
||||
A request loop to achieve that might look like:
|
||||
|
||||
@ -212,15 +211,15 @@ static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec)
|
||||
|
||||
void pci_disable_msix(struct pci_dev *dev)
|
||||
|
||||
This API should be used to undo the effect of pci_enable_msix(). It frees
|
||||
This function should be used to undo the effect of pci_enable_msix(). It frees
|
||||
the previously allocated message signaled interrupts. The interrupts may
|
||||
subsequently be assigned to another device, so drivers should not cache
|
||||
the value of the 'vector' elements over a call to pci_disable_msix().
|
||||
|
||||
A device driver must always call free_irq() on the interrupt(s)
|
||||
for which it has called request_irq() before calling this function.
|
||||
Failure to do so will result in a BUG_ON(), the device will be left with
|
||||
MSI enabled and will leak its vector.
|
||||
Before calling this function, a device driver must always call free_irq()
|
||||
on any interrupt for which it previously called request_irq().
|
||||
Failure to do so results in a BUG_ON(), leaving the device with
|
||||
MSI-X enabled and thus leaking its vector.
|
||||
|
||||
4.3.3 The MSI-X Table
|
||||
|
||||
@ -232,10 +231,10 @@ mask or unmask an interrupt, it should call disable_irq() / enable_irq().
|
||||
4.4 Handling devices implementing both MSI and MSI-X capabilities
|
||||
|
||||
If a device implements both MSI and MSI-X capabilities, it can
|
||||
run in either MSI mode or MSI-X mode but not both simultaneously.
|
||||
run in either MSI mode or MSI-X mode, but not both simultaneously.
|
||||
This is a requirement of the PCI spec, and it is enforced by the
|
||||
PCI layer. Calling pci_enable_msi() when MSI-X is already enabled or
|
||||
pci_enable_msix() when MSI is already enabled will result in an error.
|
||||
pci_enable_msix() when MSI is already enabled results in an error.
|
||||
If a device driver wishes to switch between MSI and MSI-X at runtime,
|
||||
it must first quiesce the device, then switch it back to pin-interrupt
|
||||
mode, before calling pci_enable_msi() or pci_enable_msix() and resuming
|
||||
@ -251,7 +250,7 @@ the MSI-X facilities in preference to the MSI facilities. As mentioned
|
||||
above, MSI-X supports any number of interrupts between 1 and 2048.
|
||||
In constrast, MSI is restricted to a maximum of 32 interrupts (and
|
||||
must be a power of two). In addition, the MSI interrupt vectors must
|
||||
be allocated consecutively, so the system may not be able to allocate
|
||||
be allocated consecutively, so the system might not be able to allocate
|
||||
as many vectors for MSI as it could for MSI-X. On some platforms, MSI
|
||||
interrupts must all be targeted at the same set of CPUs whereas MSI-X
|
||||
interrupts can all be targeted at different CPUs.
|
||||
@ -281,7 +280,7 @@ disabled to enabled and back again.
|
||||
|
||||
Using 'lspci -v' (as root) may show some devices with "MSI", "Message
|
||||
Signalled Interrupts" or "MSI-X" capabilities. Each of these capabilities
|
||||
has an 'Enable' flag which will be followed with either "+" (enabled)
|
||||
has an 'Enable' flag which is followed with either "+" (enabled)
|
||||
or "-" (disabled).
|
||||
|
||||
|
||||
@ -298,7 +297,7 @@ The PCI stack provides three ways to disable MSIs:
|
||||
|
||||
Some host chipsets simply don't support MSIs properly. If we're
|
||||
lucky, the manufacturer knows this and has indicated it in the ACPI
|
||||
FADT table. In this case, Linux will automatically disable MSIs.
|
||||
FADT table. In this case, Linux automatically disables MSIs.
|
||||
Some boards don't include this information in the table and so we have
|
||||
to detect them ourselves. The complete list of these is found near the
|
||||
quirk_disable_all_msi() function in drivers/pci/quirks.c.
|
||||
@ -317,7 +316,7 @@ Some bridges allow you to enable MSIs by changing some bits in their
|
||||
PCI configuration space (especially the Hypertransport chipsets such
|
||||
as the nVidia nForce and Serverworks HT2000). As with host chipsets,
|
||||
Linux mostly knows about them and automatically enables MSIs if it can.
|
||||
If you have a bridge which Linux doesn't yet know about, you can enable
|
||||
If you have a bridge unknown to Linux, you can enable
|
||||
MSIs in configuration space using whatever method you know works, then
|
||||
enable MSIs on that bridge by doing:
|
||||
|
||||
@ -327,7 +326,7 @@ where $bridge is the PCI address of the bridge you've enabled (eg
|
||||
0000:00:0e.0).
|
||||
|
||||
To disable MSIs, echo 0 instead of 1. Changing this value should be
|
||||
done with caution as it can break interrupt handling for all devices
|
||||
done with caution as it could break interrupt handling for all devices
|
||||
below this bridge.
|
||||
|
||||
Again, please notify linux-pci@vger.kernel.org of any bridges that need
|
||||
@ -336,7 +335,7 @@ special handling.
|
||||
5.3. Disabling MSIs on a single device
|
||||
|
||||
Some devices are known to have faulty MSI implementations. Usually this
|
||||
is handled in the individual device driver but occasionally it's necessary
|
||||
is handled in the individual device driver, but occasionally it's necessary
|
||||
to handle this with a quirk. Some drivers have an option to disable use
|
||||
of MSI. While this is a convenient workaround for the driver author,
|
||||
it is not good practise, and should not be emulated.
|
||||
@ -350,7 +349,7 @@ for your machine. You should also check your .config to be sure you
|
||||
have enabled CONFIG_PCI_MSI.
|
||||
|
||||
Then, 'lspci -t' gives the list of bridges above a device. Reading
|
||||
/sys/bus/pci/devices/*/msi_bus will tell you whether MSI are enabled (1)
|
||||
/sys/bus/pci/devices/*/msi_bus will tell you whether MSIs are enabled (1)
|
||||
or disabled (0). If 0 is found in any of the msi_bus files belonging
|
||||
to bridges between the PCI root and the device, MSIs are disabled.
|
||||
|
||||
|
@ -130,7 +130,7 @@ Linux kernel master tree:
|
||||
ftp.??.kernel.org:/pub/linux/kernel/...
|
||||
?? == your country code, such as "us", "uk", "fr", etc.
|
||||
|
||||
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git
|
||||
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git
|
||||
|
||||
Linux kernel mailing list:
|
||||
linux-kernel@vger.kernel.org
|
||||
|
@ -303,7 +303,7 @@ patches that are being emailed around.
|
||||
|
||||
The sign-off is a simple line at the end of the explanation for the
|
||||
patch, which certifies that you wrote it or otherwise have the right to
|
||||
pass it on as a open-source patch. The rules are pretty simple: if you
|
||||
pass it on as an open-source patch. The rules are pretty simple: if you
|
||||
can certify the below:
|
||||
|
||||
Developer's Certificate of Origin 1.1
|
||||
|
@ -43,3 +43,74 @@ If one sets slice_idle=0 and if storage supports NCQ, CFQ internally switches
|
||||
to IOPS mode and starts providing fairness in terms of number of requests
|
||||
dispatched. Note that this mode switching takes effect only for group
|
||||
scheduling. For non-cgroup users nothing should change.
|
||||
|
||||
CFQ IO scheduler Idling Theory
|
||||
===============================
|
||||
Idling on a queue is primarily about waiting for the next request to come
|
||||
on same queue after completion of a request. In this process CFQ will not
|
||||
dispatch requests from other cfq queues even if requests are pending there.
|
||||
|
||||
The rationale behind idling is that it can cut down on number of seeks
|
||||
on rotational media. For example, if a process is doing dependent
|
||||
sequential reads (next read will come on only after completion of previous
|
||||
one), then not dispatching request from other queue should help as we
|
||||
did not move the disk head and kept on dispatching sequential IO from
|
||||
one queue.
|
||||
|
||||
CFQ has following service trees and various queues are put on these trees.
|
||||
|
||||
sync-idle sync-noidle async
|
||||
|
||||
All cfq queues doing synchronous sequential IO go on to sync-idle tree.
|
||||
On this tree we idle on each queue individually.
|
||||
|
||||
All synchronous non-sequential queues go on sync-noidle tree. Also any
|
||||
request which are marked with REQ_NOIDLE go on this service tree. On this
|
||||
tree we do not idle on individual queues instead idle on the whole group
|
||||
of queues or the tree. So if there are 4 queues waiting for IO to dispatch
|
||||
we will idle only once last queue has dispatched the IO and there is
|
||||
no more IO on this service tree.
|
||||
|
||||
All async writes go on async service tree. There is no idling on async
|
||||
queues.
|
||||
|
||||
CFQ has some optimizations for SSDs and if it detects a non-rotational
|
||||
media which can support higher queue depth (multiple requests at in
|
||||
flight at a time), then it cuts down on idling of individual queues and
|
||||
all the queues move to sync-noidle tree and only tree idle remains. This
|
||||
tree idling provides isolation with buffered write queues on async tree.
|
||||
|
||||
FAQ
|
||||
===
|
||||
Q1. Why to idle at all on queues marked with REQ_NOIDLE.
|
||||
|
||||
A1. We only do tree idle (all queues on sync-noidle tree) on queues marked
|
||||
with REQ_NOIDLE. This helps in providing isolation with all the sync-idle
|
||||
queues. Otherwise in presence of many sequential readers, other
|
||||
synchronous IO might not get fair share of disk.
|
||||
|
||||
For example, if there are 10 sequential readers doing IO and they get
|
||||
100ms each. If a REQ_NOIDLE request comes in, it will be scheduled
|
||||
roughly after 1 second. If after completion of REQ_NOIDLE request we
|
||||
do not idle, and after a couple of milli seconds a another REQ_NOIDLE
|
||||
request comes in, again it will be scheduled after 1second. Repeat it
|
||||
and notice how a workload can lose its disk share and suffer due to
|
||||
multiple sequential readers.
|
||||
|
||||
fsync can generate dependent IO where bunch of data is written in the
|
||||
context of fsync, and later some journaling data is written. Journaling
|
||||
data comes in only after fsync has finished its IO (atleast for ext4
|
||||
that seemed to be the case). Now if one decides not to idle on fsync
|
||||
thread due to REQ_NOIDLE, then next journaling write will not get
|
||||
scheduled for another second. A process doing small fsync, will suffer
|
||||
badly in presence of multiple sequential readers.
|
||||
|
||||
Hence doing tree idling on threads using REQ_NOIDLE flag on requests
|
||||
provides isolation from multiple sequential readers and at the same
|
||||
time we do not idle on individual threads.
|
||||
|
||||
Q2. When to specify REQ_NOIDLE
|
||||
A2. I would think whenever one is doing synchronous write and not expecting
|
||||
more writes to be dispatched from same context soon, should be able
|
||||
to specify REQ_NOIDLE on writes and that probably should work well for
|
||||
most of the cases.
|
||||
|
@ -380,7 +380,7 @@ will be charged as a new owner of it.
|
||||
|
||||
5.2 stat file
|
||||
|
||||
5.2.1 memory.stat file includes following statistics
|
||||
memory.stat file includes following statistics
|
||||
|
||||
# per-memory cgroup local status
|
||||
cache - # of bytes of page cache memory.
|
||||
@ -438,89 +438,6 @@ Note:
|
||||
file_mapped is accounted only when the memory cgroup is owner of page
|
||||
cache.)
|
||||
|
||||
5.2.2 memory.vmscan_stat
|
||||
|
||||
memory.vmscan_stat includes statistics information for memory scanning and
|
||||
freeing, reclaiming. The statistics shows memory scanning information since
|
||||
memory cgroup creation and can be reset to 0 by writing 0 as
|
||||
|
||||
#echo 0 > ../memory.vmscan_stat
|
||||
|
||||
This file contains following statistics.
|
||||
|
||||
[param]_[file_or_anon]_pages_by_[reason]_[under_heararchy]
|
||||
[param]_elapsed_ns_by_[reason]_[under_hierarchy]
|
||||
|
||||
For example,
|
||||
|
||||
scanned_file_pages_by_limit indicates the number of scanned
|
||||
file pages at vmscan.
|
||||
|
||||
Now, 3 parameters are supported
|
||||
|
||||
scanned - the number of pages scanned by vmscan
|
||||
rotated - the number of pages activated at vmscan
|
||||
freed - the number of pages freed by vmscan
|
||||
|
||||
If "rotated" is high against scanned/freed, the memcg seems busy.
|
||||
|
||||
Now, 2 reason are supported
|
||||
|
||||
limit - the memory cgroup's limit
|
||||
system - global memory pressure + softlimit
|
||||
(global memory pressure not under softlimit is not handled now)
|
||||
|
||||
When under_hierarchy is added in the tail, the number indicates the
|
||||
total memcg scan of its children and itself.
|
||||
|
||||
elapsed_ns is a elapsed time in nanosecond. This may include sleep time
|
||||
and not indicates CPU usage. So, please take this as just showing
|
||||
latency.
|
||||
|
||||
Here is an example.
|
||||
|
||||
# cat /cgroup/memory/A/memory.vmscan_stat
|
||||
scanned_pages_by_limit 9471864
|
||||
scanned_anon_pages_by_limit 6640629
|
||||
scanned_file_pages_by_limit 2831235
|
||||
rotated_pages_by_limit 4243974
|
||||
rotated_anon_pages_by_limit 3971968
|
||||
rotated_file_pages_by_limit 272006
|
||||
freed_pages_by_limit 2318492
|
||||
freed_anon_pages_by_limit 962052
|
||||
freed_file_pages_by_limit 1356440
|
||||
elapsed_ns_by_limit 351386416101
|
||||
scanned_pages_by_system 0
|
||||
scanned_anon_pages_by_system 0
|
||||
scanned_file_pages_by_system 0
|
||||
rotated_pages_by_system 0
|
||||
rotated_anon_pages_by_system 0
|
||||
rotated_file_pages_by_system 0
|
||||
freed_pages_by_system 0
|
||||
freed_anon_pages_by_system 0
|
||||
freed_file_pages_by_system 0
|
||||
elapsed_ns_by_system 0
|
||||
scanned_pages_by_limit_under_hierarchy 9471864
|
||||
scanned_anon_pages_by_limit_under_hierarchy 6640629
|
||||
scanned_file_pages_by_limit_under_hierarchy 2831235
|
||||
rotated_pages_by_limit_under_hierarchy 4243974
|
||||
rotated_anon_pages_by_limit_under_hierarchy 3971968
|
||||
rotated_file_pages_by_limit_under_hierarchy 272006
|
||||
freed_pages_by_limit_under_hierarchy 2318492
|
||||
freed_anon_pages_by_limit_under_hierarchy 962052
|
||||
freed_file_pages_by_limit_under_hierarchy 1356440
|
||||
elapsed_ns_by_limit_under_hierarchy 351386416101
|
||||
scanned_pages_by_system_under_hierarchy 0
|
||||
scanned_anon_pages_by_system_under_hierarchy 0
|
||||
scanned_file_pages_by_system_under_hierarchy 0
|
||||
rotated_pages_by_system_under_hierarchy 0
|
||||
rotated_anon_pages_by_system_under_hierarchy 0
|
||||
rotated_file_pages_by_system_under_hierarchy 0
|
||||
freed_pages_by_system_under_hierarchy 0
|
||||
freed_anon_pages_by_system_under_hierarchy 0
|
||||
freed_file_pages_by_system_under_hierarchy 0
|
||||
elapsed_ns_by_system_under_hierarchy 0
|
||||
|
||||
5.3 swappiness
|
||||
|
||||
Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only.
|
||||
|
@ -199,18 +199,16 @@ to coerce it into behaving.
|
||||
|
||||
To beat some sense out of the internal editor, do this:
|
||||
|
||||
- Under account settings, composition and addressing, uncheck "Compose
|
||||
messages in HTML format".
|
||||
|
||||
- Edit your Thunderbird config settings so that it won't use format=flowed.
|
||||
Go to "edit->preferences->advanced->config editor" to bring up the
|
||||
thunderbird's registry editor, and set "mailnews.send_plaintext_flowed" to
|
||||
"false".
|
||||
|
||||
- Enable "preformat" mode: Shft-click on the Write icon to bring up the HTML
|
||||
composer, select "Preformat" from the drop-down box just under the subject
|
||||
line, then close the message without saving. (This setting also applies to
|
||||
the text composer, but the only control for it is in the HTML composer.)
|
||||
- Disable HTML Format: Set "mail.identity.id1.compose_html" to "false".
|
||||
|
||||
- Enable "preformat" mode: Set "editor.quotesPreformatted" to "true".
|
||||
|
||||
- Enable UTF8: Set "prefs.converted-to-utf8" to "true".
|
||||
|
||||
- Install the "toggle wordwrap" extension. Download the file from:
|
||||
https://addons.mozilla.org/thunderbird/addon/2351/
|
||||
|
@ -592,3 +592,11 @@ Why: In 3.0, we can now autodetect internal 3G device and already have
|
||||
interface that was used by acer-wmi driver. It will replaced by
|
||||
information log when acer-wmi initial.
|
||||
Who: Lee, Chun-Yi <jlee@novell.com>
|
||||
|
||||
----------------------------
|
||||
What: The XFS nodelaylog mount option
|
||||
When: 3.3
|
||||
Why: The delaylog mode that has been the default since 2.6.39 has proven
|
||||
stable, and the old code is in the way of additional improvements in
|
||||
the log code.
|
||||
Who: Christoph Hellwig <hch@lst.de>
|
||||
|
@ -27,7 +27,7 @@ His original code can still be found at:
|
||||
Does anyone know of a more current email address for Makoto? He doesn't
|
||||
respond to the address given above...
|
||||
|
||||
Current maintainer: Sergey S. Kostyliov <rathamahata@php4.ru>
|
||||
This filesystem doesn't have a maintainer.
|
||||
|
||||
WHAT IS THIS DRIVER?
|
||||
==================
|
||||
|
@ -35,13 +35,6 @@ the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
|
||||
All Sysfs entries are named with their core_id (represented here by 'X').
|
||||
tempX_input - Core temperature (in millidegrees Celsius).
|
||||
tempX_max - All cooling devices should be turned on (on Core2).
|
||||
Initialized with IA32_THERM_INTERRUPT. When the CPU
|
||||
temperature reaches this temperature, an interrupt is
|
||||
generated and tempX_max_alarm is set.
|
||||
tempX_max_hyst - If the CPU temperature falls below than temperature,
|
||||
an interrupt is generated and tempX_max_alarm is reset.
|
||||
tempX_max_alarm - Set if the temperature reaches or exceeds tempX_max.
|
||||
Reset if the temperature drops to or below tempX_max_hyst.
|
||||
tempX_crit - Maximum junction temperature (in millidegrees Celsius).
|
||||
tempX_crit_alarm - Set when Out-of-spec bit is set, never clears.
|
||||
Correct CPU operation is no longer guaranteed.
|
||||
@ -49,9 +42,10 @@ tempX_label - Contains string "Core X", where X is processor
|
||||
number. For Package temp, this will be "Physical id Y",
|
||||
where Y is the package number.
|
||||
|
||||
The TjMax temperature is set to 85 degrees C if undocumented model specific
|
||||
register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as
|
||||
(sometimes) documented in processor datasheet.
|
||||
On CPU models which support it, TjMax is read from a model-specific register.
|
||||
On other models, it is set to an arbitrary value based on weak heuristics.
|
||||
If these heuristics don't work for you, you can pass the correct TjMax value
|
||||
as a module parameter (tjmax).
|
||||
|
||||
Appendix A. Known TjMax lists (TBD):
|
||||
Some information comes from ark.intel.com
|
||||
|
@ -62,6 +62,13 @@ can be safely used to identify the chip. You will have to instantiate
|
||||
the devices explicitly. Please see Documentation/i2c/instantiating-devices for
|
||||
details.
|
||||
|
||||
WARNING: Do not access chip registers using the i2cdump command, and do not use
|
||||
any of the i2ctools commands on a command register (0xa5 to 0xac). The chips
|
||||
supported by this driver interpret any access to a command register (including
|
||||
read commands) as request to execute the command in question. This may result in
|
||||
power loss, board resets, and/or Flash corruption. Worst case, your board may
|
||||
turn into a brick.
|
||||
|
||||
|
||||
Sysfs entries
|
||||
-------------
|
||||
|
@ -319,4 +319,6 @@ Code Seq#(hex) Include File Comments
|
||||
<mailto:thomas@winischhofer.net>
|
||||
0xF4 00-1F video/mbxfb.h mbxfb
|
||||
<mailto:raph@8d.com>
|
||||
0xF6 all LTTng Linux Trace Toolkit Next Generation
|
||||
<mailto:mathieu.desnoyers@efficios.com>
|
||||
0xFD all linux/dm-ioctl.h
|
||||
|
@ -620,17 +620,6 @@
|
||||
(including this document itself) have been moved there, and might
|
||||
be more up to date than the web version.
|
||||
|
||||
* Name: "Linux Source Driver"
|
||||
URL: http://lsd.linux.cz
|
||||
Keywords: Browsing source code.
|
||||
Description: "Linux Source Driver (LSD) is an application, which
|
||||
can make browsing source codes of Linux kernel easier than you can
|
||||
imagine. You can select between multiple versions of kernel (e.g.
|
||||
0.01, 1.0.0, 2.0.33, 2.0.34pre13, 2.0.0, 2.1.101 etc.). With LSD
|
||||
you can search Linux kernel (fulltext, macros, types, functions
|
||||
and variables) and LSD can generate patches for you on the fly
|
||||
(files, directories or kernel)".
|
||||
|
||||
* Name: "Linux Kernel Source Reference"
|
||||
Author: Thomas Graichen.
|
||||
URL: http://marc.info/?l=linux-kernel&m=96446640102205&w=4
|
||||
|
@ -40,6 +40,7 @@ parameter is applicable:
|
||||
ALSA ALSA sound support is enabled.
|
||||
APIC APIC support is enabled.
|
||||
APM Advanced Power Management support is enabled.
|
||||
ARM ARM architecture is enabled.
|
||||
AVR32 AVR32 architecture is enabled.
|
||||
AX25 Appropriate AX.25 support is enabled.
|
||||
BLACKFIN Blackfin architecture is enabled.
|
||||
@ -49,6 +50,7 @@ parameter is applicable:
|
||||
EFI EFI Partitioning (GPT) is enabled
|
||||
EIDE EIDE/ATAPI support is enabled.
|
||||
FB The frame buffer device is enabled.
|
||||
FTRACE Function tracing enabled.
|
||||
GCOV GCOV profiling is enabled.
|
||||
HW Appropriate hardware is enabled.
|
||||
IA-64 IA-64 architecture is enabled.
|
||||
@ -69,6 +71,7 @@ parameter is applicable:
|
||||
Documentation/m68k/kernel-options.txt.
|
||||
MCA MCA bus support is enabled.
|
||||
MDA MDA console support is enabled.
|
||||
MIPS MIPS architecture is enabled.
|
||||
MOUSE Appropriate mouse support is enabled.
|
||||
MSI Message Signaled Interrupts (PCI).
|
||||
MTD MTD (Memory Technology Device) support is enabled.
|
||||
@ -100,7 +103,6 @@ parameter is applicable:
|
||||
SPARC Sparc architecture is enabled.
|
||||
SWSUSP Software suspend (hibernation) is enabled.
|
||||
SUSPEND System suspend states are enabled.
|
||||
FTRACE Function tracing enabled.
|
||||
TPM TPM drivers are enabled.
|
||||
TS Appropriate touchscreen support is enabled.
|
||||
UMS USB Mass Storage support is enabled.
|
||||
@ -115,7 +117,7 @@ parameter is applicable:
|
||||
X86-64 X86-64 architecture is enabled.
|
||||
More X86-64 boot options can be found in
|
||||
Documentation/x86/x86_64/boot-options.txt .
|
||||
X86 Either 32bit or 64bit x86 (same as X86-32+X86-64)
|
||||
X86 Either 32-bit or 64-bit x86 (same as X86-32+X86-64)
|
||||
XEN Xen support is enabled
|
||||
|
||||
In addition, the following text indicates that the option:
|
||||
@ -376,7 +378,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
atkbd.softrepeat= [HW]
|
||||
Use software keyboard repeat
|
||||
|
||||
autotest [IA64]
|
||||
autotest [IA-64]
|
||||
|
||||
baycom_epp= [HW,AX25]
|
||||
Format: <io>,<mode>
|
||||
@ -681,8 +683,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
uart[8250],mmio32,<addr>[,options]
|
||||
Start an early, polled-mode console on the 8250/16550
|
||||
UART at the specified I/O port or MMIO address.
|
||||
MMIO inter-register address stride is either 8bit (mmio)
|
||||
or 32bit (mmio32).
|
||||
MMIO inter-register address stride is either 8-bit
|
||||
(mmio) or 32-bit (mmio32).
|
||||
The options are the same as for ttyS, above.
|
||||
|
||||
earlyprintk= [X86,SH,BLACKFIN]
|
||||
@ -725,7 +727,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
See Documentation/block/as-iosched.txt and
|
||||
Documentation/block/deadline-iosched.txt for details.
|
||||
|
||||
elfcorehdr= [IA64,PPC,SH,X86]
|
||||
elfcorehdr= [IA-64,PPC,SH,X86]
|
||||
Specifies physical address of start of kernel core
|
||||
image elf header. Generally kexec loader will
|
||||
pass this option to capture kernel.
|
||||
@ -791,7 +793,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
tracer at boot up. function-list is a comma separated
|
||||
list of functions. This list can be changed at run
|
||||
time by the set_ftrace_filter file in the debugfs
|
||||
tracing directory.
|
||||
tracing directory.
|
||||
|
||||
ftrace_notrace=[function-list]
|
||||
[FTRACE] Do not trace the functions specified in
|
||||
@ -829,7 +831,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
|
||||
hashdist= [KNL,NUMA] Large hashes allocated during boot
|
||||
are distributed across NUMA nodes. Defaults on
|
||||
for 64bit NUMA, off otherwise.
|
||||
for 64-bit NUMA, off otherwise.
|
||||
Format: 0 | 1 (for off | on)
|
||||
|
||||
hcl= [IA-64] SGI's Hardware Graph compatibility layer
|
||||
@ -998,10 +1000,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
DMA.
|
||||
forcedac [x86_64]
|
||||
With this option iommu will not optimize to look
|
||||
for io virtual address below 32 bit forcing dual
|
||||
for io virtual address below 32-bit forcing dual
|
||||
address cycle on pci bus for cards supporting greater
|
||||
than 32 bit addressing. The default is to look
|
||||
for translation below 32 bit and if not available
|
||||
than 32-bit addressing. The default is to look
|
||||
for translation below 32-bit and if not available
|
||||
then look in the higher range.
|
||||
strict [Default Off]
|
||||
With this option on every unmap_single operation will
|
||||
@ -1017,7 +1019,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
off disable Interrupt Remapping
|
||||
nosid disable Source ID checking
|
||||
|
||||
inttest= [IA64]
|
||||
inttest= [IA-64]
|
||||
|
||||
iomem= Disable strict checking of access to MMIO memory
|
||||
strict regions from userspace.
|
||||
@ -1034,7 +1036,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
nomerge
|
||||
forcesac
|
||||
soft
|
||||
pt [x86, IA64]
|
||||
pt [x86, IA-64]
|
||||
|
||||
io7= [HW] IO7 for Marvel based alpha systems
|
||||
See comment before marvel_specify_io7 in
|
||||
@ -1165,7 +1167,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
|
||||
kvm-amd.npt= [KVM,AMD] Disable nested paging (virtualized MMU)
|
||||
for all guests.
|
||||
Default is 1 (enabled) if in 64bit or 32bit-PAE mode
|
||||
Default is 1 (enabled) if in 64-bit or 32-bit PAE mode.
|
||||
|
||||
kvm-intel.ept= [KVM,Intel] Disable extended page tables
|
||||
(virtualized MMU) support on capable Intel chips.
|
||||
@ -1202,10 +1204,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
libata.dma=0 Disable all PATA and SATA DMA
|
||||
libata.dma=1 PATA and SATA Disk DMA only
|
||||
libata.dma=2 ATAPI (CDROM) DMA only
|
||||
libata.dma=4 Compact Flash DMA only
|
||||
libata.dma=4 Compact Flash DMA only
|
||||
Combinations also work, so libata.dma=3 enables DMA
|
||||
for disks and CDROMs, but not CFs.
|
||||
|
||||
|
||||
libata.ignore_hpa= [LIBATA] Ignore HPA limit
|
||||
libata.ignore_hpa=0 keep BIOS limits (default)
|
||||
libata.ignore_hpa=1 ignore limits, using full disk
|
||||
@ -1331,7 +1333,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
ltpc= [NET]
|
||||
Format: <io>,<irq>,<dma>
|
||||
|
||||
machvec= [IA64] Force the use of a particular machine-vector
|
||||
machvec= [IA-64] Force the use of a particular machine-vector
|
||||
(machvec) in a generic kernel.
|
||||
Example: machvec=hpzx1_swiotlb
|
||||
|
||||
@ -1348,9 +1350,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
it is equivalent to "nosmp", which also disables
|
||||
the IO APIC.
|
||||
|
||||
max_loop= [LOOP] Maximum number of loopback devices that can
|
||||
be mounted
|
||||
Format: <1-256>
|
||||
max_loop= [LOOP] The number of loop block devices that get
|
||||
(loop.max_loop) unconditionally pre-created at init time. The default
|
||||
number is configured by BLK_DEV_LOOP_MIN_COUNT. Instead
|
||||
of statically allocating a predefined number, loop
|
||||
devices can be requested on-demand with the
|
||||
/dev/loop-control interface.
|
||||
|
||||
mcatest= [IA-64]
|
||||
|
||||
@ -1734,7 +1739,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
|
||||
nointroute [IA-64]
|
||||
|
||||
nojitter [IA64] Disables jitter checking for ITC timers.
|
||||
nojitter [IA-64] Disables jitter checking for ITC timers.
|
||||
|
||||
no-kvmclock [X86,KVM] Disable paravirtualized KVM clock driver
|
||||
|
||||
@ -1800,7 +1805,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
|
||||
nox2apic [X86-64,APIC] Do not enable x2APIC mode.
|
||||
|
||||
nptcg= [IA64] Override max number of concurrent global TLB
|
||||
nptcg= [IA-64] Override max number of concurrent global TLB
|
||||
purges which is reported from either PAL_VM_SUMMARY or
|
||||
SAL PALO.
|
||||
|
||||
@ -2077,13 +2082,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
Format: { parport<nr> | timid | 0 }
|
||||
See also Documentation/parport.txt.
|
||||
|
||||
pmtmr= [X86] Manual setup of pmtmr I/O Port.
|
||||
pmtmr= [X86] Manual setup of pmtmr I/O Port.
|
||||
Override pmtimer IOPort with a hex value.
|
||||
e.g. pmtmr=0x508
|
||||
|
||||
pnp.debug [PNP]
|
||||
Enable PNP debug messages. This depends on the
|
||||
CONFIG_PNP_DEBUG_MESSAGES option.
|
||||
pnp.debug=1 [PNP]
|
||||
Enable PNP debug messages (depends on the
|
||||
CONFIG_PNP_DEBUG_MESSAGES option). Change at run-time
|
||||
via /sys/module/pnp/parameters/debug. We always show
|
||||
current resource usage; turning this on also shows
|
||||
possible settings and some assignment information.
|
||||
|
||||
pnpacpi= [ACPI]
|
||||
{ off }
|
||||
@ -2635,6 +2643,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
medium is write-protected).
|
||||
Example: quirks=0419:aaf5:rl,0421:0433:rc
|
||||
|
||||
user_debug= [KNL,ARM]
|
||||
Format: <int>
|
||||
See arch/arm/Kconfig.debug help text.
|
||||
1 - undefined instruction events
|
||||
2 - system calls
|
||||
4 - invalid data aborts
|
||||
8 - SIGSEGV faults
|
||||
16 - SIGBUS faults
|
||||
Example: user_debug=31
|
||||
|
||||
userpte=
|
||||
[X86] Flags controlling user PTE allocations.
|
||||
|
||||
@ -2680,6 +2698,28 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
||||
vmpoff= [KNL,S390] Perform z/VM CP command after power off.
|
||||
Format: <command>
|
||||
|
||||
vsyscall= [X86-64]
|
||||
Controls the behavior of vsyscalls (i.e. calls to
|
||||
fixed addresses of 0xffffffffff600x00 from legacy
|
||||
code). Most statically-linked binaries and older
|
||||
versions of glibc use these calls. Because these
|
||||
functions are at fixed addresses, they make nice
|
||||
targets for exploits that can control RIP.
|
||||
|
||||
emulate Vsyscalls turn into traps and are emulated
|
||||
reasonably safely.
|
||||
|
||||
native [default] Vsyscalls are native syscall
|
||||
instructions.
|
||||
This is a little bit faster than trapping
|
||||
and makes a few dynamic recompilers work
|
||||
better than they would in emulation mode.
|
||||
It also makes exploits much easier to write.
|
||||
|
||||
none Vsyscalls don't work at all. This makes
|
||||
them quite hard to use for exploits but
|
||||
might break your system.
|
||||
|
||||
vt.cur_default= [VT] Default cursor shape.
|
||||
Format: 0xCCBBAA, where AA, BB, and CC are the same as
|
||||
the parameters of the <Esc>[?A;B;Cc escape sequence;
|
||||
|
@ -1,13 +1,21 @@
|
||||
00-INDEX
|
||||
- this file
|
||||
3c359.txt
|
||||
- information on the 3Com TokenLink Velocity XL (3c5359) driver.
|
||||
3c505.txt
|
||||
- information on the 3Com EtherLink Plus (3c505) driver.
|
||||
3c509.txt
|
||||
- information on the 3Com Etherlink III Series Ethernet cards.
|
||||
6pack.txt
|
||||
- info on the 6pack protocol, an alternative to KISS for AX.25
|
||||
DLINK.txt
|
||||
- info on the D-Link DE-600/DE-620 parallel port pocket adapters
|
||||
PLIP.txt
|
||||
- PLIP: The Parallel Line Internet Protocol device driver
|
||||
README.ipw2100
|
||||
- README for the Intel PRO/Wireless 2100 driver.
|
||||
README.ipw2200
|
||||
- README for the Intel PRO/Wireless 2915ABG and 2200BG driver.
|
||||
README.sb1000
|
||||
- info on General Instrument/NextLevel SURFboard1000 cable modem.
|
||||
alias.txt
|
||||
@ -20,8 +28,12 @@ atm.txt
|
||||
- info on where to get ATM programs and support for Linux.
|
||||
ax25.txt
|
||||
- info on using AX.25 and NET/ROM code for Linux
|
||||
batman-adv.txt
|
||||
- B.A.T.M.A.N routing protocol on top of layer 2 Ethernet Frames.
|
||||
baycom.txt
|
||||
- info on the driver for Baycom style amateur radio modems
|
||||
bonding.txt
|
||||
- Linux Ethernet Bonding Driver HOWTO: link aggregation in Linux.
|
||||
bridge.txt
|
||||
- where to get user space programs for ethernet bridging with Linux.
|
||||
can.txt
|
||||
@ -34,32 +46,60 @@ cxacru.txt
|
||||
- Conexant AccessRunner USB ADSL Modem
|
||||
cxacru-cf.py
|
||||
- Conexant AccessRunner USB ADSL Modem configuration file parser
|
||||
cxgb.txt
|
||||
- Release Notes for the Chelsio N210 Linux device driver.
|
||||
dccp.txt
|
||||
- the Datagram Congestion Control Protocol (DCCP) (RFC 4340..42).
|
||||
de4x5.txt
|
||||
- the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver
|
||||
decnet.txt
|
||||
- info on using the DECnet networking layer in Linux.
|
||||
depca.txt
|
||||
- the Digital DEPCA/EtherWORKS DE1?? and DE2?? LANCE Ethernet driver
|
||||
dl2k.txt
|
||||
- README for D-Link DL2000-based Gigabit Ethernet Adapters (dl2k.ko).
|
||||
dm9000.txt
|
||||
- README for the Simtec DM9000 Network driver.
|
||||
dmfe.txt
|
||||
- info on the Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver.
|
||||
dns_resolver.txt
|
||||
- The DNS resolver module allows kernel servies to make DNS queries.
|
||||
driver.txt
|
||||
- Softnet driver issues.
|
||||
e100.txt
|
||||
- info on Intel's EtherExpress PRO/100 line of 10/100 boards
|
||||
e1000.txt
|
||||
- info on Intel's E1000 line of gigabit ethernet boards
|
||||
e1000e.txt
|
||||
- README for the Intel Gigabit Ethernet Driver (e1000e).
|
||||
eql.txt
|
||||
- serial IP load balancing
|
||||
ewrk3.txt
|
||||
- the Digital EtherWORKS 3 DE203/4/5 Ethernet driver
|
||||
fib_trie.txt
|
||||
- Level Compressed Trie (LC-trie) notes: a structure for routing.
|
||||
filter.txt
|
||||
- Linux Socket Filtering
|
||||
fore200e.txt
|
||||
- FORE Systems PCA-200E/SBA-200E ATM NIC driver info.
|
||||
framerelay.txt
|
||||
- info on using Frame Relay/Data Link Connection Identifier (DLCI).
|
||||
gen_stats.txt
|
||||
- Generic networking statistics for netlink users.
|
||||
generic_hdlc.txt
|
||||
- The generic High Level Data Link Control (HDLC) layer.
|
||||
generic_netlink.txt
|
||||
- info on Generic Netlink
|
||||
gianfar.txt
|
||||
- Gianfar Ethernet Driver.
|
||||
ieee802154.txt
|
||||
- Linux IEEE 802.15.4 implementation, API and drivers
|
||||
ifenslave.c
|
||||
- Configure network interfaces for parallel routing (bonding).
|
||||
igb.txt
|
||||
- README for the Intel Gigabit Ethernet Driver (igb).
|
||||
igbvf.txt
|
||||
- README for the Intel Gigabit Ethernet Driver (igbvf).
|
||||
ip-sysctl.txt
|
||||
- /proc/sys/net/ipv4/* variables
|
||||
ip_dynaddr.txt
|
||||
@ -68,41 +108,117 @@ ipddp.txt
|
||||
- AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation
|
||||
iphase.txt
|
||||
- Interphase PCI ATM (i)Chip IA Linux driver info.
|
||||
ipv6.txt
|
||||
- Options to the ipv6 kernel module.
|
||||
ipvs-sysctl.txt
|
||||
- Per-inode explanation of the /proc/sys/net/ipv4/vs interface.
|
||||
irda.txt
|
||||
- where to get IrDA (infrared) utilities and info for Linux.
|
||||
ixgb.txt
|
||||
- README for the Intel 10 Gigabit Ethernet Driver (ixgb).
|
||||
ixgbe.txt
|
||||
- README for the Intel 10 Gigabit Ethernet Driver (ixgbe).
|
||||
ixgbevf.txt
|
||||
- README for the Intel Virtual Function (VF) Driver (ixgbevf).
|
||||
l2tp.txt
|
||||
- User guide to the L2TP tunnel protocol.
|
||||
lapb-module.txt
|
||||
- programming information of the LAPB module.
|
||||
ltpc.txt
|
||||
- the Apple or Farallon LocalTalk PC card driver
|
||||
mac80211-injection.txt
|
||||
- HOWTO use packet injection with mac80211
|
||||
multicast.txt
|
||||
- Behaviour of cards under Multicast
|
||||
multiqueue.txt
|
||||
- HOWTO for multiqueue network device support.
|
||||
netconsole.txt
|
||||
- The network console module netconsole.ko: configuration and notes.
|
||||
netdev-features.txt
|
||||
- Network interface features API description.
|
||||
netdevices.txt
|
||||
- info on network device driver functions exported to the kernel.
|
||||
netif-msg.txt
|
||||
- Design of the network interface message level setting (NETIF_MSG_*).
|
||||
nfc.txt
|
||||
- The Linux Near Field Communication (NFS) subsystem.
|
||||
olympic.txt
|
||||
- IBM PCI Pit/Pit-Phy/Olympic Token Ring driver info.
|
||||
operstates.txt
|
||||
- Overview of network interface operational states.
|
||||
packet_mmap.txt
|
||||
- User guide to memory mapped packet socket rings (PACKET_[RT]X_RING).
|
||||
phonet.txt
|
||||
- The Phonet packet protocol used in Nokia cellular modems.
|
||||
phy.txt
|
||||
- The PHY abstraction layer.
|
||||
pktgen.txt
|
||||
- User guide to the kernel packet generator (pktgen.ko).
|
||||
policy-routing.txt
|
||||
- IP policy-based routing
|
||||
ppp_generic.txt
|
||||
- Information about the generic PPP driver.
|
||||
proc_net_tcp.txt
|
||||
- Per inode overview of the /proc/net/tcp and /proc/net/tcp6 interfaces.
|
||||
radiotap-headers.txt
|
||||
- Background on radiotap headers.
|
||||
ray_cs.txt
|
||||
- Raylink Wireless LAN card driver info.
|
||||
rds.txt
|
||||
- Background on the reliable, ordered datagram delivery method RDS.
|
||||
regulatory.txt
|
||||
- Overview of the Linux wireless regulatory infrastructure.
|
||||
rxrpc.txt
|
||||
- Guide to the RxRPC protocol.
|
||||
s2io.txt
|
||||
- Release notes for Neterion Xframe I/II 10GbE driver.
|
||||
scaling.txt
|
||||
- Explanation of network scaling techniques: RSS, RPS, RFS, aRFS, XPS.
|
||||
sctp.txt
|
||||
- Notes on the Linux kernel implementation of the SCTP protocol.
|
||||
secid.txt
|
||||
- Explanation of the secid member in flow structures.
|
||||
skfp.txt
|
||||
- SysKonnect FDDI (SK-5xxx, Compaq Netelligent) driver info.
|
||||
smc9.txt
|
||||
- the driver for SMC's 9000 series of Ethernet cards
|
||||
smctr.txt
|
||||
- SMC TokenCard TokenRing Linux driver info.
|
||||
spider-net.txt
|
||||
- README for the Spidernet Driver (as found in PS3 / Cell BE).
|
||||
stmmac.txt
|
||||
- README for the STMicro Synopsys Ethernet driver.
|
||||
tc-actions-env-rules.txt
|
||||
- rules for traffic control (tc) actions.
|
||||
timestamping.txt
|
||||
- overview of network packet timestamping variants.
|
||||
tcp.txt
|
||||
- short blurb on how TCP output takes place.
|
||||
tcp-thin.txt
|
||||
- kernel tuning options for low rate 'thin' TCP streams.
|
||||
tlan.txt
|
||||
- ThunderLAN (Compaq Netelligent 10/100, Olicom OC-2xxx) driver info.
|
||||
tms380tr.txt
|
||||
- SysKonnect Token Ring ISA/PCI adapter driver info.
|
||||
tproxy.txt
|
||||
- Transparent proxy support user guide.
|
||||
tuntap.txt
|
||||
- TUN/TAP device driver, allowing user space Rx/Tx of packets.
|
||||
udplite.txt
|
||||
- UDP-Lite protocol (RFC 3828) introduction.
|
||||
vortex.txt
|
||||
- info on using 3Com Vortex (3c590, 3c592, 3c595, 3c597) Ethernet cards.
|
||||
vxge.txt
|
||||
- README for the Neterion X3100 PCIe Server Adapter.
|
||||
x25.txt
|
||||
- general info on X.25 development.
|
||||
x25-iface.txt
|
||||
- description of the X.25 Packet Layer to LAPB device interface.
|
||||
xfrm_proc.txt
|
||||
- description of the statistics package for XFRM.
|
||||
xfrm_sync.txt
|
||||
- sync patches for XFRM enable migration of an SA between hosts.
|
||||
xfrm_sysctl.txt
|
||||
- description of the XFRM configuration options.
|
||||
z8530drv.txt
|
||||
- info about Linux driver for Z8530 based HDLC cards for AX.25
|
||||
|
@ -238,6 +238,18 @@ ad_select
|
||||
|
||||
This option was added in bonding version 3.4.0.
|
||||
|
||||
all_slaves_active
|
||||
|
||||
Specifies that duplicate frames (received on inactive ports) should be
|
||||
dropped (0) or delivered (1).
|
||||
|
||||
Normally, bonding will drop duplicate frames (received on inactive
|
||||
ports), which is desirable for most users. But there are some times
|
||||
it is nice to allow duplicate frames to be delivered.
|
||||
|
||||
The default value is 0 (drop duplicate frames received on inactive
|
||||
ports).
|
||||
|
||||
arp_interval
|
||||
|
||||
Specifies the ARP link monitoring frequency in milliseconds.
|
||||
@ -433,6 +445,23 @@ miimon
|
||||
determined. See the High Availability section for additional
|
||||
information. The default value is 0.
|
||||
|
||||
min_links
|
||||
|
||||
Specifies the minimum number of links that must be active before
|
||||
asserting carrier. It is similar to the Cisco EtherChannel min-links
|
||||
feature. This allows setting the minimum number of member ports that
|
||||
must be up (link-up state) before marking the bond device as up
|
||||
(carrier on). This is useful for situations where higher level services
|
||||
such as clustering want to ensure a minimum number of low bandwidth
|
||||
links are active before switchover. This option only affect 802.3ad
|
||||
mode.
|
||||
|
||||
The default value is 0. This will cause carrier to be asserted (for
|
||||
802.3ad mode) whenever there is an active aggregator, regardless of the
|
||||
number of available links in that aggregator. Note that, because an
|
||||
aggregator cannot be active without at least one available link,
|
||||
setting this option to 0 or to 1 has the exact same effect.
|
||||
|
||||
mode
|
||||
|
||||
Specifies one of the bonding policies. The default is
|
||||
|
@ -1,3 +1,5 @@
|
||||
Note: This driver doesn't have a maintainer.
|
||||
|
||||
Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver for Linux.
|
||||
|
||||
This program is free software; you can redistribute it and/or
|
||||
@ -55,7 +57,6 @@ Test and make sure PCI latency is now correct for all cases.
|
||||
Authors:
|
||||
|
||||
Sten Wang <sten_wang@davicom.com.tw > : Original Author
|
||||
Tobias Ringstrom <tori@unhappy.mine.nu> : Current Maintainer
|
||||
|
||||
Contributors:
|
||||
|
||||
|
@ -992,7 +992,7 @@ bindv6only - BOOLEAN
|
||||
TRUE: disable IPv4-mapped address feature
|
||||
FALSE: enable IPv4-mapped address feature
|
||||
|
||||
Default: FALSE (as specified in RFC2553bis)
|
||||
Default: FALSE (as specified in RFC3493)
|
||||
|
||||
IPv6 Fragmentation:
|
||||
|
||||
@ -1042,7 +1042,7 @@ conf/interface/*:
|
||||
The functional behaviour for certain settings is different
|
||||
depending on whether local forwarding is enabled or not.
|
||||
|
||||
accept_ra - BOOLEAN
|
||||
accept_ra - INTEGER
|
||||
Accept Router Advertisements; autoconfigure using them.
|
||||
|
||||
Possible values are:
|
||||
@ -1106,7 +1106,7 @@ dad_transmits - INTEGER
|
||||
The amount of Duplicate Address Detection probes to send.
|
||||
Default: 1
|
||||
|
||||
forwarding - BOOLEAN
|
||||
forwarding - INTEGER
|
||||
Configure interface-specific Host/Router behaviour.
|
||||
|
||||
Note: It is recommended to have the same setting on all
|
||||
|
378
Documentation/networking/scaling.txt
Normal file
378
Documentation/networking/scaling.txt
Normal file
@ -0,0 +1,378 @@
|
||||
Scaling in the Linux Networking Stack
|
||||
|
||||
|
||||
Introduction
|
||||
============
|
||||
|
||||
This document describes a set of complementary techniques in the Linux
|
||||
networking stack to increase parallelism and improve performance for
|
||||
multi-processor systems.
|
||||
|
||||
The following technologies are described:
|
||||
|
||||
RSS: Receive Side Scaling
|
||||
RPS: Receive Packet Steering
|
||||
RFS: Receive Flow Steering
|
||||
Accelerated Receive Flow Steering
|
||||
XPS: Transmit Packet Steering
|
||||
|
||||
|
||||
RSS: Receive Side Scaling
|
||||
=========================
|
||||
|
||||
Contemporary NICs support multiple receive and transmit descriptor queues
|
||||
(multi-queue). On reception, a NIC can send different packets to different
|
||||
queues to distribute processing among CPUs. The NIC distributes packets by
|
||||
applying a filter to each packet that assigns it to one of a small number
|
||||
of logical flows. Packets for each flow are steered to a separate receive
|
||||
queue, which in turn can be processed by separate CPUs. This mechanism is
|
||||
generally known as “Receive-side Scaling” (RSS). The goal of RSS and
|
||||
the other scaling techniques is to increase performance uniformly.
|
||||
Multi-queue distribution can also be used for traffic prioritization, but
|
||||
that is not the focus of these techniques.
|
||||
|
||||
The filter used in RSS is typically a hash function over the network
|
||||
and/or transport layer headers-- for example, a 4-tuple hash over
|
||||
IP addresses and TCP ports of a packet. The most common hardware
|
||||
implementation of RSS uses a 128-entry indirection table where each entry
|
||||
stores a queue number. The receive queue for a packet is determined
|
||||
by masking out the low order seven bits of the computed hash for the
|
||||
packet (usually a Toeplitz hash), taking this number as a key into the
|
||||
indirection table and reading the corresponding value.
|
||||
|
||||
Some advanced NICs allow steering packets to queues based on
|
||||
programmable filters. For example, webserver bound TCP port 80 packets
|
||||
can be directed to their own receive queue. Such “n-tuple” filters can
|
||||
be configured from ethtool (--config-ntuple).
|
||||
|
||||
==== RSS Configuration
|
||||
|
||||
The driver for a multi-queue capable NIC typically provides a kernel
|
||||
module parameter for specifying the number of hardware queues to
|
||||
configure. In the bnx2x driver, for instance, this parameter is called
|
||||
num_queues. A typical RSS configuration would be to have one receive queue
|
||||
for each CPU if the device supports enough queues, or otherwise at least
|
||||
one for each memory domain, where a memory domain is a set of CPUs that
|
||||
share a particular memory level (L1, L2, NUMA node, etc.).
|
||||
|
||||
The indirection table of an RSS device, which resolves a queue by masked
|
||||
hash, is usually programmed by the driver at initialization. The
|
||||
default mapping is to distribute the queues evenly in the table, but the
|
||||
indirection table can be retrieved and modified at runtime using ethtool
|
||||
commands (--show-rxfh-indir and --set-rxfh-indir). Modifying the
|
||||
indirection table could be done to give different queues different
|
||||
relative weights.
|
||||
|
||||
== RSS IRQ Configuration
|
||||
|
||||
Each receive queue has a separate IRQ associated with it. The NIC triggers
|
||||
this to notify a CPU when new packets arrive on the given queue. The
|
||||
signaling path for PCIe devices uses message signaled interrupts (MSI-X),
|
||||
that can route each interrupt to a particular CPU. The active mapping
|
||||
of queues to IRQs can be determined from /proc/interrupts. By default,
|
||||
an IRQ may be handled on any CPU. Because a non-negligible part of packet
|
||||
processing takes place in receive interrupt handling, it is advantageous
|
||||
to spread receive interrupts between CPUs. To manually adjust the IRQ
|
||||
affinity of each interrupt see Documentation/IRQ-affinity. Some systems
|
||||
will be running irqbalance, a daemon that dynamically optimizes IRQ
|
||||
assignments and as a result may override any manual settings.
|
||||
|
||||
== Suggested Configuration
|
||||
|
||||
RSS should be enabled when latency is a concern or whenever receive
|
||||
interrupt processing forms a bottleneck. Spreading load between CPUs
|
||||
decreases queue length. For low latency networking, the optimal setting
|
||||
is to allocate as many queues as there are CPUs in the system (or the
|
||||
NIC maximum, if lower). The most efficient high-rate configuration
|
||||
is likely the one with the smallest number of receive queues where no
|
||||
receive queue overflows due to a saturated CPU, because in default
|
||||
mode with interrupt coalescing enabled, the aggregate number of
|
||||
interrupts (and thus work) grows with each additional queue.
|
||||
|
||||
Per-cpu load can be observed using the mpstat utility, but note that on
|
||||
processors with hyperthreading (HT), each hyperthread is represented as
|
||||
a separate CPU. For interrupt handling, HT has shown no benefit in
|
||||
initial tests, so limit the number of queues to the number of CPU cores
|
||||
in the system.
|
||||
|
||||
|
||||
RPS: Receive Packet Steering
|
||||
============================
|
||||
|
||||
Receive Packet Steering (RPS) is logically a software implementation of
|
||||
RSS. Being in software, it is necessarily called later in the datapath.
|
||||
Whereas RSS selects the queue and hence CPU that will run the hardware
|
||||
interrupt handler, RPS selects the CPU to perform protocol processing
|
||||
above the interrupt handler. This is accomplished by placing the packet
|
||||
on the desired CPU’s backlog queue and waking up the CPU for processing.
|
||||
RPS has some advantages over RSS: 1) it can be used with any NIC,
|
||||
2) software filters can easily be added to hash over new protocols,
|
||||
3) it does not increase hardware device interrupt rate (although it does
|
||||
introduce inter-processor interrupts (IPIs)).
|
||||
|
||||
RPS is called during bottom half of the receive interrupt handler, when
|
||||
a driver sends a packet up the network stack with netif_rx() or
|
||||
netif_receive_skb(). These call the get_rps_cpu() function, which
|
||||
selects the queue that should process a packet.
|
||||
|
||||
The first step in determining the target CPU for RPS is to calculate a
|
||||
flow hash over the packet’s addresses or ports (2-tuple or 4-tuple hash
|
||||
depending on the protocol). This serves as a consistent hash of the
|
||||
associated flow of the packet. The hash is either provided by hardware
|
||||
or will be computed in the stack. Capable hardware can pass the hash in
|
||||
the receive descriptor for the packet; this would usually be the same
|
||||
hash used for RSS (e.g. computed Toeplitz hash). The hash is saved in
|
||||
skb->rx_hash and can be used elsewhere in the stack as a hash of the
|
||||
packet’s flow.
|
||||
|
||||
Each receive hardware queue has an associated list of CPUs to which
|
||||
RPS may enqueue packets for processing. For each received packet,
|
||||
an index into the list is computed from the flow hash modulo the size
|
||||
of the list. The indexed CPU is the target for processing the packet,
|
||||
and the packet is queued to the tail of that CPU’s backlog queue. At
|
||||
the end of the bottom half routine, IPIs are sent to any CPUs for which
|
||||
packets have been queued to their backlog queue. The IPI wakes backlog
|
||||
processing on the remote CPU, and any queued packets are then processed
|
||||
up the networking stack.
|
||||
|
||||
==== RPS Configuration
|
||||
|
||||
RPS requires a kernel compiled with the CONFIG_RPS kconfig symbol (on
|
||||
by default for SMP). Even when compiled in, RPS remains disabled until
|
||||
explicitly configured. The list of CPUs to which RPS may forward traffic
|
||||
can be configured for each receive queue using a sysfs file entry:
|
||||
|
||||
/sys/class/net/<dev>/queues/rx-<n>/rps_cpus
|
||||
|
||||
This file implements a bitmap of CPUs. RPS is disabled when it is zero
|
||||
(the default), in which case packets are processed on the interrupting
|
||||
CPU. Documentation/IRQ-affinity.txt explains how CPUs are assigned to
|
||||
the bitmap.
|
||||
|
||||
== Suggested Configuration
|
||||
|
||||
For a single queue device, a typical RPS configuration would be to set
|
||||
the rps_cpus to the CPUs in the same memory domain of the interrupting
|
||||
CPU. If NUMA locality is not an issue, this could also be all CPUs in
|
||||
the system. At high interrupt rate, it might be wise to exclude the
|
||||
interrupting CPU from the map since that already performs much work.
|
||||
|
||||
For a multi-queue system, if RSS is configured so that a hardware
|
||||
receive queue is mapped to each CPU, then RPS is probably redundant
|
||||
and unnecessary. If there are fewer hardware queues than CPUs, then
|
||||
RPS might be beneficial if the rps_cpus for each queue are the ones that
|
||||
share the same memory domain as the interrupting CPU for that queue.
|
||||
|
||||
|
||||
RFS: Receive Flow Steering
|
||||
==========================
|
||||
|
||||
While RPS steers packets solely based on hash, and thus generally
|
||||
provides good load distribution, it does not take into account
|
||||
application locality. This is accomplished by Receive Flow Steering
|
||||
(RFS). The goal of RFS is to increase datacache hitrate by steering
|
||||
kernel processing of packets to the CPU where the application thread
|
||||
consuming the packet is running. RFS relies on the same RPS mechanisms
|
||||
to enqueue packets onto the backlog of another CPU and to wake up that
|
||||
CPU.
|
||||
|
||||
In RFS, packets are not forwarded directly by the value of their hash,
|
||||
but the hash is used as index into a flow lookup table. This table maps
|
||||
flows to the CPUs where those flows are being processed. The flow hash
|
||||
(see RPS section above) is used to calculate the index into this table.
|
||||
The CPU recorded in each entry is the one which last processed the flow.
|
||||
If an entry does not hold a valid CPU, then packets mapped to that entry
|
||||
are steered using plain RPS. Multiple table entries may point to the
|
||||
same CPU. Indeed, with many flows and few CPUs, it is very likely that
|
||||
a single application thread handles flows with many different flow hashes.
|
||||
|
||||
rps_sock_flow_table is a global flow table that contains the *desired* CPU
|
||||
for flows: the CPU that is currently processing the flow in userspace.
|
||||
Each table value is a CPU index that is updated during calls to recvmsg
|
||||
and sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage()
|
||||
and tcp_splice_read()).
|
||||
|
||||
When the scheduler moves a thread to a new CPU while it has outstanding
|
||||
receive packets on the old CPU, packets may arrive out of order. To
|
||||
avoid this, RFS uses a second flow table to track outstanding packets
|
||||
for each flow: rps_dev_flow_table is a table specific to each hardware
|
||||
receive queue of each device. Each table value stores a CPU index and a
|
||||
counter. The CPU index represents the *current* CPU onto which packets
|
||||
for this flow are enqueued for further kernel processing. Ideally, kernel
|
||||
and userspace processing occur on the same CPU, and hence the CPU index
|
||||
in both tables is identical. This is likely false if the scheduler has
|
||||
recently migrated a userspace thread while the kernel still has packets
|
||||
enqueued for kernel processing on the old CPU.
|
||||
|
||||
The counter in rps_dev_flow_table values records the length of the current
|
||||
CPU's backlog when a packet in this flow was last enqueued. Each backlog
|
||||
queue has a head counter that is incremented on dequeue. A tail counter
|
||||
is computed as head counter + queue length. In other words, the counter
|
||||
in rps_dev_flow_table[i] records the last element in flow i that has
|
||||
been enqueued onto the currently designated CPU for flow i (of course,
|
||||
entry i is actually selected by hash and multiple flows may hash to the
|
||||
same entry i).
|
||||
|
||||
And now the trick for avoiding out of order packets: when selecting the
|
||||
CPU for packet processing (from get_rps_cpu()) the rps_sock_flow table
|
||||
and the rps_dev_flow table of the queue that the packet was received on
|
||||
are compared. If the desired CPU for the flow (found in the
|
||||
rps_sock_flow table) matches the current CPU (found in the rps_dev_flow
|
||||
table), the packet is enqueued onto that CPU’s backlog. If they differ,
|
||||
the current CPU is updated to match the desired CPU if one of the
|
||||
following is true:
|
||||
|
||||
- The current CPU's queue head counter >= the recorded tail counter
|
||||
value in rps_dev_flow[i]
|
||||
- The current CPU is unset (equal to NR_CPUS)
|
||||
- The current CPU is offline
|
||||
|
||||
After this check, the packet is sent to the (possibly updated) current
|
||||
CPU. These rules aim to ensure that a flow only moves to a new CPU when
|
||||
there are no packets outstanding on the old CPU, as the outstanding
|
||||
packets could arrive later than those about to be processed on the new
|
||||
CPU.
|
||||
|
||||
==== RFS Configuration
|
||||
|
||||
RFS is only available if the kconfig symbol CONFIG_RFS is enabled (on
|
||||
by default for SMP). The functionality remains disabled until explicitly
|
||||
configured. The number of entries in the global flow table is set through:
|
||||
|
||||
/proc/sys/net/core/rps_sock_flow_entries
|
||||
|
||||
The number of entries in the per-queue flow table are set through:
|
||||
|
||||
/sys/class/net/<dev>/queues/rx-<n>/rps_flow_cnt
|
||||
|
||||
== Suggested Configuration
|
||||
|
||||
Both of these need to be set before RFS is enabled for a receive queue.
|
||||
Values for both are rounded up to the nearest power of two. The
|
||||
suggested flow count depends on the expected number of active connections
|
||||
at any given time, which may be significantly less than the number of open
|
||||
connections. We have found that a value of 32768 for rps_sock_flow_entries
|
||||
works fairly well on a moderately loaded server.
|
||||
|
||||
For a single queue device, the rps_flow_cnt value for the single queue
|
||||
would normally be configured to the same value as rps_sock_flow_entries.
|
||||
For a multi-queue device, the rps_flow_cnt for each queue might be
|
||||
configured as rps_sock_flow_entries / N, where N is the number of
|
||||
queues. So for instance, if rps_flow_entries is set to 32768 and there
|
||||
are 16 configured receive queues, rps_flow_cnt for each queue might be
|
||||
configured as 2048.
|
||||
|
||||
|
||||
Accelerated RFS
|
||||
===============
|
||||
|
||||
Accelerated RFS is to RFS what RSS is to RPS: a hardware-accelerated load
|
||||
balancing mechanism that uses soft state to steer flows based on where
|
||||
the application thread consuming the packets of each flow is running.
|
||||
Accelerated RFS should perform better than RFS since packets are sent
|
||||
directly to a CPU local to the thread consuming the data. The target CPU
|
||||
will either be the same CPU where the application runs, or at least a CPU
|
||||
which is local to the application thread’s CPU in the cache hierarchy.
|
||||
|
||||
To enable accelerated RFS, the networking stack calls the
|
||||
ndo_rx_flow_steer driver function to communicate the desired hardware
|
||||
queue for packets matching a particular flow. The network stack
|
||||
automatically calls this function every time a flow entry in
|
||||
rps_dev_flow_table is updated. The driver in turn uses a device specific
|
||||
method to program the NIC to steer the packets.
|
||||
|
||||
The hardware queue for a flow is derived from the CPU recorded in
|
||||
rps_dev_flow_table. The stack consults a CPU to hardware queue map which
|
||||
is maintained by the NIC driver. This is an auto-generated reverse map of
|
||||
the IRQ affinity table shown by /proc/interrupts. Drivers can use
|
||||
functions in the cpu_rmap (“CPU affinity reverse map”) kernel library
|
||||
to populate the map. For each CPU, the corresponding queue in the map is
|
||||
set to be one whose processing CPU is closest in cache locality.
|
||||
|
||||
==== Accelerated RFS Configuration
|
||||
|
||||
Accelerated RFS is only available if the kernel is compiled with
|
||||
CONFIG_RFS_ACCEL and support is provided by the NIC device and driver.
|
||||
It also requires that ntuple filtering is enabled via ethtool. The map
|
||||
of CPU to queues is automatically deduced from the IRQ affinities
|
||||
configured for each receive queue by the driver, so no additional
|
||||
configuration should be necessary.
|
||||
|
||||
== Suggested Configuration
|
||||
|
||||
This technique should be enabled whenever one wants to use RFS and the
|
||||
NIC supports hardware acceleration.
|
||||
|
||||
XPS: Transmit Packet Steering
|
||||
=============================
|
||||
|
||||
Transmit Packet Steering is a mechanism for intelligently selecting
|
||||
which transmit queue to use when transmitting a packet on a multi-queue
|
||||
device. To accomplish this, a mapping from CPU to hardware queue(s) is
|
||||
recorded. The goal of this mapping is usually to assign queues
|
||||
exclusively to a subset of CPUs, where the transmit completions for
|
||||
these queues are processed on a CPU within this set. This choice
|
||||
provides two benefits. First, contention on the device queue lock is
|
||||
significantly reduced since fewer CPUs contend for the same queue
|
||||
(contention can be eliminated completely if each CPU has its own
|
||||
transmit queue). Secondly, cache miss rate on transmit completion is
|
||||
reduced, in particular for data cache lines that hold the sk_buff
|
||||
structures.
|
||||
|
||||
XPS is configured per transmit queue by setting a bitmap of CPUs that
|
||||
may use that queue to transmit. The reverse mapping, from CPUs to
|
||||
transmit queues, is computed and maintained for each network device.
|
||||
When transmitting the first packet in a flow, the function
|
||||
get_xps_queue() is called to select a queue. This function uses the ID
|
||||
of the running CPU as a key into the CPU-to-queue lookup table. If the
|
||||
ID matches a single queue, that is used for transmission. If multiple
|
||||
queues match, one is selected by using the flow hash to compute an index
|
||||
into the set.
|
||||
|
||||
The queue chosen for transmitting a particular flow is saved in the
|
||||
corresponding socket structure for the flow (e.g. a TCP connection).
|
||||
This transmit queue is used for subsequent packets sent on the flow to
|
||||
prevent out of order (ooo) packets. The choice also amortizes the cost
|
||||
of calling get_xps_queues() over all packets in the flow. To avoid
|
||||
ooo packets, the queue for a flow can subsequently only be changed if
|
||||
skb->ooo_okay is set for a packet in the flow. This flag indicates that
|
||||
there are no outstanding packets in the flow, so the transmit queue can
|
||||
change without the risk of generating out of order packets. The
|
||||
transport layer is responsible for setting ooo_okay appropriately. TCP,
|
||||
for instance, sets the flag when all data for a connection has been
|
||||
acknowledged.
|
||||
|
||||
==== XPS Configuration
|
||||
|
||||
XPS is only available if the kconfig symbol CONFIG_XPS is enabled (on by
|
||||
default for SMP). The functionality remains disabled until explicitly
|
||||
configured. To enable XPS, the bitmap of CPUs that may use a transmit
|
||||
queue is configured using the sysfs file entry:
|
||||
|
||||
/sys/class/net/<dev>/queues/tx-<n>/xps_cpus
|
||||
|
||||
== Suggested Configuration
|
||||
|
||||
For a network device with a single transmission queue, XPS configuration
|
||||
has no effect, since there is no choice in this case. In a multi-queue
|
||||
system, XPS is preferably configured so that each CPU maps onto one queue.
|
||||
If there are as many queues as there are CPUs in the system, then each
|
||||
queue can also map onto one CPU, resulting in exclusive pairings that
|
||||
experience no contention. If there are fewer queues than CPUs, then the
|
||||
best CPUs to share a given queue are probably those that share the cache
|
||||
with the CPU that processes transmit completions for that queue
|
||||
(transmit interrupts).
|
||||
|
||||
|
||||
Further Information
|
||||
===================
|
||||
RPS and RFS were introduced in kernel 2.6.35. XPS was incorporated into
|
||||
2.6.38. Original patches were submitted by Tom Herbert
|
||||
(therbert@google.com)
|
||||
|
||||
Accelerated RFS was introduced in 2.6.35. Original patches were
|
||||
submitted by Ben Hutchings (bhutchings@solarflare.com)
|
||||
|
||||
Authors:
|
||||
Tom Herbert (therbert@google.com)
|
||||
Willem de Bruijn (willemb@google.com)
|
@ -431,8 +431,7 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h:
|
||||
|
||||
void pm_runtime_irq_safe(struct device *dev);
|
||||
- set the power.irq_safe flag for the device, causing the runtime-PM
|
||||
suspend and resume callbacks (but not the idle callback) to be invoked
|
||||
with interrupts disabled
|
||||
callbacks to be invoked with interrupts off
|
||||
|
||||
void pm_runtime_mark_last_busy(struct device *dev);
|
||||
- set the power.last_busy field to the current time
|
||||
|
76
Documentation/ramoops.txt
Normal file
76
Documentation/ramoops.txt
Normal file
@ -0,0 +1,76 @@
|
||||
Ramoops oops/panic logger
|
||||
=========================
|
||||
|
||||
Sergiu Iordache <sergiu@chromium.org>
|
||||
|
||||
Updated: 8 August 2011
|
||||
|
||||
0. Introduction
|
||||
|
||||
Ramoops is an oops/panic logger that writes its logs to RAM before the system
|
||||
crashes. It works by logging oopses and panics in a circular buffer. Ramoops
|
||||
needs a system with persistent RAM so that the content of that area can
|
||||
survive after a restart.
|
||||
|
||||
1. Ramoops concepts
|
||||
|
||||
Ramoops uses a predefined memory area to store the dump. The start and size of
|
||||
the memory area are set using two variables:
|
||||
* "mem_address" for the start
|
||||
* "mem_size" for the size. The memory size will be rounded down to a
|
||||
power of two.
|
||||
|
||||
The memory area is divided into "record_size" chunks (also rounded down to
|
||||
power of two) and each oops/panic writes a "record_size" chunk of
|
||||
information.
|
||||
|
||||
Dumping both oopses and panics can be done by setting 1 in the "dump_oops"
|
||||
variable while setting 0 in that variable dumps only the panics.
|
||||
|
||||
The module uses a counter to record multiple dumps but the counter gets reset
|
||||
on restart (i.e. new dumps after the restart will overwrite old ones).
|
||||
|
||||
2. Setting the parameters
|
||||
|
||||
Setting the ramoops parameters can be done in 2 different manners:
|
||||
1. Use the module parameters (which have the names of the variables described
|
||||
as before).
|
||||
2. Use a platform device and set the platform data. The parameters can then
|
||||
be set through that platform data. An example of doing that is:
|
||||
|
||||
#include <linux/ramoops.h>
|
||||
[...]
|
||||
|
||||
static struct ramoops_platform_data ramoops_data = {
|
||||
.mem_size = <...>,
|
||||
.mem_address = <...>,
|
||||
.record_size = <...>,
|
||||
.dump_oops = <...>,
|
||||
};
|
||||
|
||||
static struct platform_device ramoops_dev = {
|
||||
.name = "ramoops",
|
||||
.dev = {
|
||||
.platform_data = &ramoops_data,
|
||||
},
|
||||
};
|
||||
|
||||
[... inside a function ...]
|
||||
int ret;
|
||||
|
||||
ret = platform_device_register(&ramoops_dev);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "unable to register platform device\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
3. Dump format
|
||||
|
||||
The data dump begins with a header, currently defined as "====" followed by a
|
||||
timestamp and a new line. The dump then continues with the actual data.
|
||||
|
||||
4. Reading the data
|
||||
|
||||
The dump data can be read from memory (through /dev/mem or other means).
|
||||
Getting the module parameters, which are needed in order to parse the data, can
|
||||
be done through /sys/module/ramoops/parameters/* .
|
@ -8,3 +8,6 @@ lguest/
|
||||
- Extremely simple hypervisor for experimental/educational use.
|
||||
uml/
|
||||
- User Mode Linux, builds/runs Linux kernel as a userspace program.
|
||||
virtio.txt
|
||||
- Text version of draft virtio spec.
|
||||
See http://ozlabs.org/~rusty/virtio-spec
|
||||
|
@ -1996,6 +1996,9 @@ int main(int argc, char *argv[])
|
||||
/* We use a simple helper to copy the arguments separated by spaces. */
|
||||
concat((char *)(boot + 1), argv+optind+2);
|
||||
|
||||
/* Set kernel alignment to 16M (CONFIG_PHYSICAL_ALIGN) */
|
||||
boot->hdr.kernel_alignment = 0x1000000;
|
||||
|
||||
/* Boot protocol version: 2.07 supports the fields for lguest. */
|
||||
boot->hdr.version = 0x207;
|
||||
|
||||
|
2200
Documentation/virtual/virtio-spec.txt
Normal file
2200
Documentation/virtual/virtio-spec.txt
Normal file
File diff suppressed because it is too large
Load Diff
@ -123,10 +123,11 @@ be automatically shutdown if it's set to "never".
|
||||
khugepaged runs usually at low frequency so while one may not want to
|
||||
invoke defrag algorithms synchronously during the page faults, it
|
||||
should be worth invoking defrag at least in khugepaged. However it's
|
||||
also possible to disable defrag in khugepaged:
|
||||
also possible to disable defrag in khugepaged by writing 0 or enable
|
||||
defrag in khugepaged by writing 1:
|
||||
|
||||
echo yes >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
|
||||
echo no >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
|
||||
echo 0 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
|
||||
echo 1 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
|
||||
|
||||
You can also control how many pages khugepaged should scan at each
|
||||
pass:
|
||||
|
53
MAINTAINERS
53
MAINTAINERS
@ -1278,7 +1278,6 @@ F: drivers/input/misc/ati_remote2.c
|
||||
ATLX ETHERNET DRIVERS
|
||||
M: Jay Cliburn <jcliburn@gmail.com>
|
||||
M: Chris Snook <chris.snook@gmail.com>
|
||||
M: Jie Yang <jie.yang@atheros.com>
|
||||
L: netdev@vger.kernel.org
|
||||
W: http://sourceforge.net/projects/atl1
|
||||
W: http://atl1.sourceforge.net
|
||||
@ -1574,7 +1573,6 @@ F: drivers/scsi/bfa/
|
||||
|
||||
BROCADE BNA 10 GIGABIT ETHERNET DRIVER
|
||||
M: Rasesh Mody <rmody@brocade.com>
|
||||
M: Debashis Dutt <ddutt@brocade.com>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/net/bna/
|
||||
@ -1758,7 +1756,6 @@ F: Documentation/zh_CN/
|
||||
|
||||
CISCO VIC ETHERNET NIC DRIVER
|
||||
M: Christian Benvenuti <benve@cisco.com>
|
||||
M: Vasanthy Kolluri <vkolluri@cisco.com>
|
||||
M: Roopa Prabhu <roprabhu@cisco.com>
|
||||
M: David Wang <dwang2@cisco.com>
|
||||
S: Supported
|
||||
@ -1883,7 +1880,7 @@ S: Maintained
|
||||
F: drivers/connector/
|
||||
|
||||
CONTROL GROUPS (CGROUPS)
|
||||
M: Paul Menage <menage@google.com>
|
||||
M: Paul Menage <paul@paulmenage.org>
|
||||
M: Li Zefan <lizf@cn.fujitsu.com>
|
||||
L: containers@lists.linux-foundation.org
|
||||
S: Maintained
|
||||
@ -1932,7 +1929,7 @@ S: Maintained
|
||||
F: tools/power/cpupower
|
||||
|
||||
CPUSETS
|
||||
M: Paul Menage <menage@google.com>
|
||||
M: Paul Menage <paul@paulmenage.org>
|
||||
W: http://www.bullopensource.org/cpuset/
|
||||
W: http://oss.sgi.com/projects/cpusets/
|
||||
S: Supported
|
||||
@ -2649,11 +2646,11 @@ F: drivers/net/wan/dlci.c
|
||||
F: drivers/net/wan/sdla.c
|
||||
|
||||
FRAMEBUFFER LAYER
|
||||
M: Paul Mundt <lethal@linux-sh.org>
|
||||
M: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
|
||||
L: linux-fbdev@vger.kernel.org
|
||||
W: http://linux-fbdev.sourceforge.net/
|
||||
Q: http://patchwork.kernel.org/project/linux-fbdev/list/
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6.git
|
||||
T: git git://github.com/schandinat/linux-2.6.git fbdev-next
|
||||
S: Maintained
|
||||
F: Documentation/fb/
|
||||
F: Documentation/devicetree/bindings/fb/
|
||||
@ -3262,6 +3259,17 @@ F: Documentation/input/multi-touch-protocol.txt
|
||||
F: drivers/input/input-mt.c
|
||||
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
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git
|
||||
S: Maintained
|
||||
F: drivers/scsi/isci/
|
||||
F: firmware/isci/
|
||||
|
||||
INTEL IDLE DRIVER
|
||||
M: Len Brown <lenb@kernel.org>
|
||||
L: linux-pm@lists.linux-foundation.org
|
||||
@ -3905,9 +3913,9 @@ F: arch/powerpc/platforms/powermac/
|
||||
F: drivers/macintosh/
|
||||
|
||||
LINUX FOR POWERPC EMBEDDED MPC5XXX
|
||||
M: Grant Likely <grant.likely@secretlab.ca>
|
||||
M: Anatolij Gustschin <agust@denx.de>
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
T: git git://git.secretlab.ca/git/linux-2.6.git
|
||||
T: git git://git.denx.de/linux-2.6-agust.git
|
||||
S: Maintained
|
||||
F: arch/powerpc/platforms/512x/
|
||||
F: arch/powerpc/platforms/52xx/
|
||||
@ -4404,7 +4412,8 @@ L: netfilter@vger.kernel.org
|
||||
L: coreteam@netfilter.org
|
||||
W: http://www.netfilter.org/
|
||||
W: http://www.iptables.org/
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-2.6.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next-2.6.git
|
||||
S: Supported
|
||||
F: include/linux/netfilter*
|
||||
F: include/linux/netfilter/
|
||||
@ -4450,8 +4459,8 @@ M: "David S. Miller" <davem@davemloft.net>
|
||||
L: netdev@vger.kernel.org
|
||||
W: http://www.linuxfoundation.org/en/Net
|
||||
W: http://patchwork.ozlabs.org/project/netdev/list/
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
|
||||
S: Maintained
|
||||
F: net/
|
||||
F: include/net/
|
||||
@ -4604,7 +4613,7 @@ F: arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
|
||||
F: arch/arm/mach-omap2/clockdomain44xx.c
|
||||
|
||||
OMAP AUDIO SUPPORT
|
||||
M: Jarkko Nikula <jhnikula@gmail.com>
|
||||
M: Jarkko Nikula <jarkko.nikula@bitmer.com>
|
||||
L: alsa-devel@alsa-project.org (subscribers-only)
|
||||
L: linux-omap@vger.kernel.org
|
||||
S: Maintained
|
||||
@ -4774,7 +4783,7 @@ F: drivers/net/wireless/orinoco/
|
||||
|
||||
OSD LIBRARY and FILESYSTEM
|
||||
M: Boaz Harrosh <bharrosh@panasas.com>
|
||||
M: Benny Halevy <bhalevy@panasas.com>
|
||||
M: Benny Halevy <bhalevy@tonian.com>
|
||||
L: osd-dev@open-osd.org
|
||||
W: http://open-osd.org
|
||||
T: git git://git.open-osd.org/open-osd.git
|
||||
@ -4971,7 +4980,7 @@ M: Paul Mackerras <paulus@samba.org>
|
||||
M: Ingo Molnar <mingo@elte.hu>
|
||||
M: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
|
||||
S: Supported
|
||||
F: kernel/perf_event*.c
|
||||
F: kernel/events/*
|
||||
F: include/linux/perf_event.h
|
||||
F: arch/*/kernel/perf_event*.c
|
||||
F: arch/*/kernel/*/perf_event*.c
|
||||
@ -5532,6 +5541,7 @@ F: include/media/*7146*
|
||||
|
||||
SAMSUNG AUDIO (ASoC) DRIVERS
|
||||
M: Jassi Brar <jassisinghbrar@gmail.com>
|
||||
M: Sangbeom Kim <sbkim73@samsung.com>
|
||||
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
|
||||
S: Supported
|
||||
F: sound/soc/samsung
|
||||
@ -6356,15 +6366,14 @@ F: net/ipv4/tcp_lp.c
|
||||
|
||||
TEGRA SUPPORT
|
||||
M: Colin Cross <ccross@android.com>
|
||||
M: Erik Gilling <konkers@android.com>
|
||||
M: Olof Johansson <olof@lixom.net>
|
||||
M: Stephen Warren <swarren@nvidia.com>
|
||||
L: linux-tegra@vger.kernel.org
|
||||
T: git git://android.git.kernel.org/kernel/tegra.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra.git
|
||||
S: Supported
|
||||
F: arch/arm/mach-tegra
|
||||
|
||||
TEHUTI ETHERNET DRIVER
|
||||
M: Alexander Indenbaum <baum@tehutinetworks.net>
|
||||
M: Andy Gospodarek <andy@greyhouse.net>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Supported
|
||||
@ -7087,7 +7096,7 @@ S: Supported
|
||||
F: drivers/mmc/host/vub300.c
|
||||
|
||||
W1 DALLAS'S 1-WIRE BUS
|
||||
M: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
|
||||
M: Evgeniy Polyakov <zbr@ioremap.net>
|
||||
S: Maintained
|
||||
F: Documentation/w1/
|
||||
F: drivers/w1/
|
||||
@ -7199,6 +7208,9 @@ W: http://opensource.wolfsonmicro.com/content/linux-drivers-wolfson-devices
|
||||
S: Supported
|
||||
F: Documentation/hwmon/wm83??
|
||||
F: drivers/leds/leds-wm83*.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/power/wm83*.c
|
||||
F: drivers/rtc/rtc-wm83*.c
|
||||
@ -7208,6 +7220,7 @@ F: drivers/watchdog/wm83*_wdt.c
|
||||
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/wm*
|
||||
|
||||
@ -7357,7 +7370,7 @@ THE REST
|
||||
M: Linus Torvalds <torvalds@linux-foundation.org>
|
||||
L: linux-kernel@vger.kernel.org
|
||||
Q: http://patchwork.kernel.org/project/LKML/list/
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
|
||||
S: Buried alive in reporters
|
||||
F: *
|
||||
F: */
|
||||
|
4
Makefile
4
Makefile
@ -1,8 +1,8 @@
|
||||
VERSION = 3
|
||||
PATCHLEVEL = 1
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION = -rc1
|
||||
NAME = Sneaky Weasel
|
||||
EXTRAVERSION = -rc10
|
||||
NAME = "Divemaster Edition"
|
||||
|
||||
# *DOCUMENTATION*
|
||||
# To see a list of typical targets execute "make help"
|
||||
|
@ -51,7 +51,7 @@ config GENERIC_CMOS_UPDATE
|
||||
def_bool y
|
||||
|
||||
config GENERIC_GPIO
|
||||
def_bool y
|
||||
bool
|
||||
|
||||
config ZONE_DMA
|
||||
bool
|
||||
|
@ -27,13 +27,4 @@
|
||||
#define UAC_NOFIX 2
|
||||
#define UAC_SIGBUS 4
|
||||
|
||||
|
||||
#ifdef __KERNEL__
|
||||
|
||||
/* This is the shift that is applied to the UAC bits as stored in the
|
||||
per-thread flags. See thread_info.h. */
|
||||
#define UAC_SHIFT 6
|
||||
|
||||
#endif
|
||||
|
||||
#endif /* __ASM_ALPHA_SYSINFO_H */
|
||||
|
@ -74,9 +74,9 @@ register struct thread_info *__current_thread_info __asm__("$8");
|
||||
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
|
||||
#define TIF_POLLING_NRFLAG 8 /* poll_idle is polling NEED_RESCHED */
|
||||
#define TIF_DIE_IF_KERNEL 9 /* dik recursion lock */
|
||||
#define TIF_UAC_NOPRINT 10 /* see sysinfo.h */
|
||||
#define TIF_UAC_NOFIX 11
|
||||
#define TIF_UAC_SIGBUS 12
|
||||
#define TIF_UAC_NOPRINT 10 /* ! Preserve sequence of following */
|
||||
#define TIF_UAC_NOFIX 11 /* ! flags as they match */
|
||||
#define TIF_UAC_SIGBUS 12 /* ! userspace part of 'osf_sysinfo' */
|
||||
#define TIF_MEMDIE 13 /* is terminating due to OOM killer */
|
||||
#define TIF_RESTORE_SIGMASK 14 /* restore signal mask in do_signal */
|
||||
#define TIF_FREEZE 16 /* is freezing for suspend */
|
||||
@ -97,7 +97,7 @@ register struct thread_info *__current_thread_info __asm__("$8");
|
||||
#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK \
|
||||
| _TIF_SYSCALL_TRACE)
|
||||
|
||||
#define ALPHA_UAC_SHIFT 10
|
||||
#define ALPHA_UAC_SHIFT TIF_UAC_NOPRINT
|
||||
#define ALPHA_UAC_MASK (1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \
|
||||
1 << TIF_UAC_SIGBUS)
|
||||
|
||||
|
@ -42,6 +42,7 @@
|
||||
#include <asm/uaccess.h>
|
||||
#include <asm/system.h>
|
||||
#include <asm/sysinfo.h>
|
||||
#include <asm/thread_info.h>
|
||||
#include <asm/hwrpb.h>
|
||||
#include <asm/processor.h>
|
||||
|
||||
@ -633,9 +634,10 @@ SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
|
||||
case GSI_UACPROC:
|
||||
if (nbytes < sizeof(unsigned int))
|
||||
return -EINVAL;
|
||||
w = (current_thread_info()->flags >> UAC_SHIFT) & UAC_BITMASK;
|
||||
if (put_user(w, (unsigned int __user *)buffer))
|
||||
return -EFAULT;
|
||||
w = (current_thread_info()->flags >> ALPHA_UAC_SHIFT) &
|
||||
UAC_BITMASK;
|
||||
if (put_user(w, (unsigned int __user *)buffer))
|
||||
return -EFAULT;
|
||||
return 1;
|
||||
|
||||
case GSI_PROC_TYPE:
|
||||
@ -756,8 +758,8 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
|
||||
case SSIN_UACPROC:
|
||||
again:
|
||||
old = current_thread_info()->flags;
|
||||
new = old & ~(UAC_BITMASK << UAC_SHIFT);
|
||||
new = new | (w & UAC_BITMASK) << UAC_SHIFT;
|
||||
new = old & ~(UAC_BITMASK << ALPHA_UAC_SHIFT);
|
||||
new = new | (w & UAC_BITMASK) << ALPHA_UAC_SHIFT;
|
||||
if (cmpxchg(¤t_thread_info()->flags,
|
||||
old, new) != old)
|
||||
goto again;
|
||||
|
@ -360,7 +360,7 @@ sys_call_table:
|
||||
.quad sys_newuname
|
||||
.quad sys_nanosleep /* 340 */
|
||||
.quad sys_mremap
|
||||
.quad sys_nfsservctl
|
||||
.quad sys_ni_syscall /* old nfsservctl */
|
||||
.quad sys_setresuid
|
||||
.quad sys_getresuid
|
||||
.quad sys_pciconfig_read /* 345 */
|
||||
|
@ -195,8 +195,7 @@ config VECTORS_BASE
|
||||
The base address of exception vectors.
|
||||
|
||||
config ARM_PATCH_PHYS_VIRT
|
||||
bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)"
|
||||
depends on EXPERIMENTAL
|
||||
bool "Patch physical to virtual translations at runtime"
|
||||
depends on !XIP_KERNEL && MMU
|
||||
depends on !ARCH_REALVIEW || !SPARSEMEM
|
||||
help
|
||||
@ -1272,6 +1271,32 @@ config ARM_ERRATA_754327
|
||||
This workaround defines cpu_relax() as smp_mb(), preventing correctly
|
||||
written polling loops from denying visibility of updates to memory.
|
||||
|
||||
config ARM_ERRATA_364296
|
||||
bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
|
||||
depends on CPU_V6 && !SMP
|
||||
help
|
||||
This options enables the workaround for the 364296 ARM1136
|
||||
r0p2 erratum (possible cache data corruption with
|
||||
hit-under-miss enabled). It sets the undocumented bit 31 in
|
||||
the auxiliary control register and the FI bit in the control
|
||||
register, thus disabling hit-under-miss without putting the
|
||||
processor into full low interrupt latency mode. ARM11MPCore
|
||||
is not affected.
|
||||
|
||||
config ARM_ERRATA_764369
|
||||
bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
|
||||
depends on CPU_V7 && SMP
|
||||
help
|
||||
This option enables the workaround for erratum 764369
|
||||
affecting Cortex-A9 MPCore with two or more processors (all
|
||||
current revisions). Under certain timing circumstances, a data
|
||||
cache line maintenance operation by MVA targeting an Inner
|
||||
Shareable memory region may fail to proceed up to either the
|
||||
Point of Coherency or to the Point of Unification of the
|
||||
system. This workaround adds a DSB instruction before the
|
||||
relevant cache maintenance functions and sets a specific bit
|
||||
in the diagnostic control register of the SCU.
|
||||
|
||||
endmenu
|
||||
|
||||
source "arch/arm/common/Kconfig"
|
||||
|
@ -82,7 +82,7 @@ asmlinkage void mmc_loader(unsigned char *buf, unsigned long len)
|
||||
|
||||
|
||||
/* Disable clock to MMC hardware block */
|
||||
__raw_writel(__raw_readl(SMSTPCR3) & (1 << 12), SMSTPCR3);
|
||||
__raw_writel(__raw_readl(SMSTPCR3) | (1 << 12), SMSTPCR3);
|
||||
|
||||
mmc_update_progress(MMC_PROGRESS_DONE);
|
||||
}
|
||||
|
@ -85,7 +85,7 @@ asmlinkage void mmc_loader(unsigned short *buf, unsigned long len)
|
||||
goto err;
|
||||
|
||||
/* Disable clock to SDHI1 hardware block */
|
||||
__raw_writel(__raw_readl(SMSTPCR3) & (1 << 13), SMSTPCR3);
|
||||
__raw_writel(__raw_readl(SMSTPCR3) | (1 << 13), SMSTPCR3);
|
||||
|
||||
mmc_update_progress(MMC_PROGRESS_DONE);
|
||||
|
||||
|
@ -57,14 +57,14 @@
|
||||
};
|
||||
|
||||
sdhci@c8000200 {
|
||||
gpios = <&gpio 69 0>, /* cd, gpio PI5 */
|
||||
<&gpio 57 0>, /* wp, gpio PH1 */
|
||||
<&gpio 155 0>; /* power, gpio PT3 */
|
||||
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
|
||||
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
|
||||
power-gpios = <&gpio 155 0>; /* gpio PT3 */
|
||||
};
|
||||
|
||||
sdhci@c8000600 {
|
||||
gpios = <&gpio 58 0>, /* cd, gpio PH2 */
|
||||
<&gpio 59 0>, /* wp, gpio PH3 */
|
||||
<&gpio 70 0>; /* power, gpio PI6 */
|
||||
cd-gpios = <&gpio 58 0>; /* gpio PH2 */
|
||||
wp-gpios = <&gpio 59 0>; /* gpio PH3 */
|
||||
power-gpios = <&gpio 70 0>; /* gpio PI6 */
|
||||
};
|
||||
};
|
||||
|
@ -21,8 +21,8 @@
|
||||
};
|
||||
|
||||
sdhci@c8000400 {
|
||||
gpios = <&gpio 69 0>, /* cd, gpio PI5 */
|
||||
<&gpio 57 0>, /* wp, gpio PH1 */
|
||||
<&gpio 70 0>; /* power, gpio PI6 */
|
||||
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
|
||||
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
|
||||
power-gpios = <&gpio 70 0>; /* gpio PI6 */
|
||||
};
|
||||
};
|
||||
|
@ -259,7 +259,6 @@ static void __init vic_disable(void __iomem *base)
|
||||
writel(0, base + VIC_INT_SELECT);
|
||||
writel(0, base + VIC_INT_ENABLE);
|
||||
writel(~0, base + VIC_INT_ENABLE_CLEAR);
|
||||
writel(0, base + VIC_IRQ_STATUS);
|
||||
writel(0, base + VIC_ITCR);
|
||||
writel(~0, base + VIC_INT_SOFT_CLEAR);
|
||||
}
|
||||
|
@ -25,17 +25,17 @@
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
|
||||
#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
|
||||
#define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \
|
||||
smp_mb(); \
|
||||
__asm__ __volatile__( \
|
||||
"1: ldrex %1, [%2]\n" \
|
||||
"1: ldrex %1, [%3]\n" \
|
||||
" " insn "\n" \
|
||||
"2: strex %1, %0, [%2]\n" \
|
||||
" teq %1, #0\n" \
|
||||
"2: strex %2, %0, [%3]\n" \
|
||||
" teq %2, #0\n" \
|
||||
" bne 1b\n" \
|
||||
" mov %0, #0\n" \
|
||||
__futex_atomic_ex_table("%4") \
|
||||
: "=&r" (ret), "=&r" (oldval) \
|
||||
__futex_atomic_ex_table("%5") \
|
||||
: "=&r" (ret), "=&r" (oldval), "=&r" (tmp) \
|
||||
: "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \
|
||||
: "cc", "memory")
|
||||
|
||||
@ -73,14 +73,14 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
|
||||
#include <linux/preempt.h>
|
||||
#include <asm/domain.h>
|
||||
|
||||
#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
|
||||
#define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \
|
||||
__asm__ __volatile__( \
|
||||
"1: " T(ldr) " %1, [%2]\n" \
|
||||
"1: " T(ldr) " %1, [%3]\n" \
|
||||
" " insn "\n" \
|
||||
"2: " T(str) " %0, [%2]\n" \
|
||||
"2: " T(str) " %0, [%3]\n" \
|
||||
" mov %0, #0\n" \
|
||||
__futex_atomic_ex_table("%4") \
|
||||
: "=&r" (ret), "=&r" (oldval) \
|
||||
__futex_atomic_ex_table("%5") \
|
||||
: "=&r" (ret), "=&r" (oldval), "=&r" (tmp) \
|
||||
: "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \
|
||||
: "cc", "memory")
|
||||
|
||||
@ -117,7 +117,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
|
||||
int cmp = (encoded_op >> 24) & 15;
|
||||
int oparg = (encoded_op << 8) >> 20;
|
||||
int cmparg = (encoded_op << 20) >> 20;
|
||||
int oldval = 0, ret;
|
||||
int oldval = 0, ret, tmp;
|
||||
|
||||
if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
|
||||
oparg = 1 << oparg;
|
||||
@ -129,19 +129,19 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
|
||||
|
||||
switch (op) {
|
||||
case FUTEX_OP_SET:
|
||||
__futex_atomic_op("mov %0, %3", ret, oldval, uaddr, oparg);
|
||||
__futex_atomic_op("mov %0, %4", ret, oldval, tmp, uaddr, oparg);
|
||||
break;
|
||||
case FUTEX_OP_ADD:
|
||||
__futex_atomic_op("add %0, %1, %3", ret, oldval, uaddr, oparg);
|
||||
__futex_atomic_op("add %0, %1, %4", ret, oldval, tmp, uaddr, oparg);
|
||||
break;
|
||||
case FUTEX_OP_OR:
|
||||
__futex_atomic_op("orr %0, %1, %3", ret, oldval, uaddr, oparg);
|
||||
__futex_atomic_op("orr %0, %1, %4", ret, oldval, tmp, uaddr, oparg);
|
||||
break;
|
||||
case FUTEX_OP_ANDN:
|
||||
__futex_atomic_op("and %0, %1, %3", ret, oldval, uaddr, ~oparg);
|
||||
__futex_atomic_op("and %0, %1, %4", ret, oldval, tmp, uaddr, ~oparg);
|
||||
break;
|
||||
case FUTEX_OP_XOR:
|
||||
__futex_atomic_op("eor %0, %1, %3", ret, oldval, uaddr, oparg);
|
||||
__futex_atomic_op("eor %0, %1, %4", ret, oldval, tmp, uaddr, oparg);
|
||||
break;
|
||||
default:
|
||||
ret = -ENOSYS;
|
||||
|
@ -45,8 +45,13 @@
|
||||
#define L2X0_CLEAN_INV_LINE_PA 0x7F0
|
||||
#define L2X0_CLEAN_INV_LINE_IDX 0x7F8
|
||||
#define L2X0_CLEAN_INV_WAY 0x7FC
|
||||
#define L2X0_LOCKDOWN_WAY_D 0x900
|
||||
#define L2X0_LOCKDOWN_WAY_I 0x904
|
||||
/*
|
||||
* The lockdown registers repeat 8 times for L310, the L210 has only one
|
||||
* D and one I lockdown register at 0x0900 and 0x0904.
|
||||
*/
|
||||
#define L2X0_LOCKDOWN_WAY_D_BASE 0x900
|
||||
#define L2X0_LOCKDOWN_WAY_I_BASE 0x904
|
||||
#define L2X0_LOCKDOWN_STRIDE 0x08
|
||||
#define L2X0_TEST_OPERATION 0xF00
|
||||
#define L2X0_LINE_DATA 0xF10
|
||||
#define L2X0_LINE_TAG 0xF30
|
||||
@ -64,7 +69,7 @@
|
||||
#define L2X0_AUX_CTRL_MASK 0xc0000fff
|
||||
#define L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT 16
|
||||
#define L2X0_AUX_CTRL_WAY_SIZE_SHIFT 17
|
||||
#define L2X0_AUX_CTRL_WAY_SIZE_MASK (0x3 << 17)
|
||||
#define L2X0_AUX_CTRL_WAY_SIZE_MASK (0x7 << 17)
|
||||
#define L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT 22
|
||||
#define L2X0_AUX_CTRL_NS_LOCKDOWN_SHIFT 26
|
||||
#define L2X0_AUX_CTRL_NS_INT_CTRL_SHIFT 27
|
||||
|
@ -10,6 +10,8 @@
|
||||
#ifndef __ASM_ARM_LOCALTIMER_H
|
||||
#define __ASM_ARM_LOCALTIMER_H
|
||||
|
||||
#include <linux/errno.h>
|
||||
|
||||
struct clock_event_device;
|
||||
|
||||
/*
|
||||
|
@ -41,7 +41,7 @@ struct arm_pmu_platdata {
|
||||
* encoded error on failure.
|
||||
*/
|
||||
extern struct platform_device *
|
||||
reserve_pmu(enum arm_pmu_type device);
|
||||
reserve_pmu(enum arm_pmu_type type);
|
||||
|
||||
/**
|
||||
* release_pmu() - Relinquish control of the performance counters
|
||||
@ -62,26 +62,26 @@ release_pmu(enum arm_pmu_type type);
|
||||
* the actual hardware initialisation.
|
||||
*/
|
||||
extern int
|
||||
init_pmu(enum arm_pmu_type device);
|
||||
init_pmu(enum arm_pmu_type type);
|
||||
|
||||
#else /* CONFIG_CPU_HAS_PMU */
|
||||
|
||||
#include <linux/err.h>
|
||||
|
||||
static inline struct platform_device *
|
||||
reserve_pmu(enum arm_pmu_type device)
|
||||
reserve_pmu(enum arm_pmu_type type)
|
||||
{
|
||||
return ERR_PTR(-ENODEV);
|
||||
}
|
||||
|
||||
static inline int
|
||||
release_pmu(struct platform_device *pdev)
|
||||
release_pmu(enum arm_pmu_type type)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int
|
||||
init_pmu(enum arm_pmu_type device)
|
||||
init_pmu(enum arm_pmu_type type)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
@ -478,8 +478,8 @@
|
||||
/*
|
||||
* Unimplemented (or alternatively implemented) syscalls
|
||||
*/
|
||||
#define __IGNORE_fadvise64_64 1
|
||||
#define __IGNORE_migrate_pages 1
|
||||
#define __IGNORE_fadvise64_64
|
||||
#define __IGNORE_migrate_pages
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
#endif /* __ASM_ARM_UNISTD_H */
|
||||
|
@ -178,7 +178,7 @@
|
||||
CALL(sys_ni_syscall) /* vm86 */
|
||||
CALL(sys_ni_syscall) /* was sys_query_module */
|
||||
CALL(sys_poll)
|
||||
CALL(sys_nfsservctl)
|
||||
CALL(sys_ni_syscall) /* was nfsservctl */
|
||||
/* 170 */ CALL(sys_setresgid16)
|
||||
CALL(sys_getresgid16)
|
||||
CALL(sys_prctl)
|
||||
|
@ -195,10 +195,10 @@ ENTRY(iwmmxt_task_disable)
|
||||
|
||||
@ enable access to CP0 and CP1
|
||||
XSC(mrc p15, 0, r4, c15, c1, 0)
|
||||
XSC(orr r4, r4, #0xf)
|
||||
XSC(orr r4, r4, #0x3)
|
||||
XSC(mcr p15, 0, r4, c15, c1, 0)
|
||||
PJ4(mrc p15, 0, r4, c1, c0, 2)
|
||||
PJ4(orr r4, r4, #0x3)
|
||||
PJ4(orr r4, r4, #0xf)
|
||||
PJ4(mcr p15, 0, r4, c1, c0, 2)
|
||||
|
||||
mov r0, #0 @ nothing to load
|
||||
@ -313,7 +313,7 @@ ENTRY(iwmmxt_task_switch)
|
||||
teq r2, r3 @ next task owns it?
|
||||
movne pc, lr @ no: leave Concan disabled
|
||||
|
||||
1: @ flip Conan access
|
||||
1: @ flip Concan access
|
||||
XSC(eor r1, r1, #0x3)
|
||||
XSC(mcr p15, 0, r1, c15, c1, 0)
|
||||
PJ4(eor r1, r1, #0xf)
|
||||
|
@ -323,7 +323,11 @@ int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
|
||||
#endif
|
||||
s = find_mod_section(hdr, sechdrs, ".alt.smp.init");
|
||||
if (s && !is_smp())
|
||||
#ifdef CONFIG_SMP_ON_UP
|
||||
fixup_smp((void *)s->sh_addr, s->sh_size);
|
||||
#else
|
||||
return -EINVAL;
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
@ -321,8 +321,8 @@ static const unsigned armv7_a9_perf_map[PERF_COUNT_HW_MAX] = {
|
||||
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
|
||||
[PERF_COUNT_HW_INSTRUCTIONS] =
|
||||
ARMV7_PERFCTR_INST_OUT_OF_RENAME_STAGE,
|
||||
[PERF_COUNT_HW_CACHE_REFERENCES] = ARMV7_PERFCTR_COHERENT_LINE_HIT,
|
||||
[PERF_COUNT_HW_CACHE_MISSES] = ARMV7_PERFCTR_COHERENT_LINE_MISS,
|
||||
[PERF_COUNT_HW_CACHE_REFERENCES] = ARMV7_PERFCTR_DCACHE_ACCESS,
|
||||
[PERF_COUNT_HW_CACHE_MISSES] = ARMV7_PERFCTR_DCACHE_REFILL,
|
||||
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
|
||||
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
|
||||
[PERF_COUNT_HW_BUS_CYCLES] = ARMV7_PERFCTR_CLOCK_CYCLES,
|
||||
|
@ -31,7 +31,7 @@ static int __devinit pmu_register(struct platform_device *pdev,
|
||||
{
|
||||
if (type < 0 || type >= ARM_NUM_PMU_DEVICES) {
|
||||
pr_warning("received registration request for unknown "
|
||||
"device %d\n", type);
|
||||
"PMU device type %d\n", type);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
@ -112,17 +112,17 @@ static int __init register_pmu_driver(void)
|
||||
device_initcall(register_pmu_driver);
|
||||
|
||||
struct platform_device *
|
||||
reserve_pmu(enum arm_pmu_type device)
|
||||
reserve_pmu(enum arm_pmu_type type)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
|
||||
if (test_and_set_bit_lock(device, &pmu_lock)) {
|
||||
if (test_and_set_bit_lock(type, &pmu_lock)) {
|
||||
pdev = ERR_PTR(-EBUSY);
|
||||
} else if (pmu_devices[device] == NULL) {
|
||||
clear_bit_unlock(device, &pmu_lock);
|
||||
} else if (pmu_devices[type] == NULL) {
|
||||
clear_bit_unlock(type, &pmu_lock);
|
||||
pdev = ERR_PTR(-ENODEV);
|
||||
} else {
|
||||
pdev = pmu_devices[device];
|
||||
pdev = pmu_devices[type];
|
||||
}
|
||||
|
||||
return pdev;
|
||||
@ -130,11 +130,11 @@ reserve_pmu(enum arm_pmu_type device)
|
||||
EXPORT_SYMBOL_GPL(reserve_pmu);
|
||||
|
||||
int
|
||||
release_pmu(enum arm_pmu_type device)
|
||||
release_pmu(enum arm_pmu_type type)
|
||||
{
|
||||
if (WARN_ON(!pmu_devices[device]))
|
||||
if (WARN_ON(!pmu_devices[type]))
|
||||
return -EINVAL;
|
||||
clear_bit_unlock(device, &pmu_lock);
|
||||
clear_bit_unlock(type, &pmu_lock);
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(release_pmu);
|
||||
@ -182,17 +182,17 @@ init_cpu_pmu(void)
|
||||
}
|
||||
|
||||
int
|
||||
init_pmu(enum arm_pmu_type device)
|
||||
init_pmu(enum arm_pmu_type type)
|
||||
{
|
||||
int err = 0;
|
||||
|
||||
switch (device) {
|
||||
switch (type) {
|
||||
case ARM_PMU_DEVICE_CPU:
|
||||
err = init_cpu_pmu();
|
||||
break;
|
||||
default:
|
||||
pr_warning("attempt to initialise unknown device %d\n",
|
||||
device);
|
||||
pr_warning("attempt to initialise PMU of unknown "
|
||||
"type %d\n", type);
|
||||
err = -EINVAL;
|
||||
}
|
||||
|
||||
|
@ -57,7 +57,8 @@ relocate_new_kernel:
|
||||
mov r0,#0
|
||||
ldr r1,kexec_mach_type
|
||||
ldr r2,kexec_boot_atags
|
||||
mov pc,lr
|
||||
ARM( mov pc, lr )
|
||||
THUMB( bx lr )
|
||||
|
||||
.align
|
||||
|
||||
|
@ -280,18 +280,19 @@ static void __init cacheid_init(void)
|
||||
if (arch >= CPU_ARCH_ARMv6) {
|
||||
if ((cachetype & (7 << 29)) == 4 << 29) {
|
||||
/* ARMv7 register format */
|
||||
arch = CPU_ARCH_ARMv7;
|
||||
cacheid = CACHEID_VIPT_NONALIASING;
|
||||
if ((cachetype & (3 << 14)) == 1 << 14)
|
||||
cacheid |= CACHEID_ASID_TAGGED;
|
||||
else if (cpu_has_aliasing_icache(CPU_ARCH_ARMv7))
|
||||
cacheid |= CACHEID_VIPT_I_ALIASING;
|
||||
} else if (cachetype & (1 << 23)) {
|
||||
cacheid = CACHEID_VIPT_ALIASING;
|
||||
} else {
|
||||
cacheid = CACHEID_VIPT_NONALIASING;
|
||||
if (cpu_has_aliasing_icache(CPU_ARCH_ARMv6))
|
||||
cacheid |= CACHEID_VIPT_I_ALIASING;
|
||||
arch = CPU_ARCH_ARMv6;
|
||||
if (cachetype & (1 << 23))
|
||||
cacheid = CACHEID_VIPT_ALIASING;
|
||||
else
|
||||
cacheid = CACHEID_VIPT_NONALIASING;
|
||||
}
|
||||
if (cpu_has_aliasing_icache(arch))
|
||||
cacheid |= CACHEID_VIPT_I_ALIASING;
|
||||
} else {
|
||||
cacheid = CACHEID_VIVT;
|
||||
}
|
||||
|
@ -13,6 +13,7 @@
|
||||
|
||||
#include <asm/smp_scu.h>
|
||||
#include <asm/cacheflush.h>
|
||||
#include <asm/cputype.h>
|
||||
|
||||
#define SCU_CTRL 0x00
|
||||
#define SCU_CONFIG 0x04
|
||||
@ -37,6 +38,15 @@ void __init scu_enable(void __iomem *scu_base)
|
||||
{
|
||||
u32 scu_ctrl;
|
||||
|
||||
#ifdef CONFIG_ARM_ERRATA_764369
|
||||
/* Cortex-A9 only */
|
||||
if ((read_cpuid(CPUID_ID) & 0xff0ffff0) == 0x410fc090) {
|
||||
scu_ctrl = __raw_readl(scu_base + 0x30);
|
||||
if (!(scu_ctrl & 1))
|
||||
__raw_writel(scu_ctrl | 0x1, scu_base + 0x30);
|
||||
}
|
||||
#endif
|
||||
|
||||
scu_ctrl = __raw_readl(scu_base + SCU_CTRL);
|
||||
/* already enabled? */
|
||||
if (scu_ctrl & 1)
|
||||
|
@ -137,8 +137,8 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk)
|
||||
clk->max_delta_ns = clockevent_delta2ns(0xffffffff, clk);
|
||||
clk->min_delta_ns = clockevent_delta2ns(0xf, clk);
|
||||
|
||||
clockevents_register_device(clk);
|
||||
|
||||
/* Make sure our local interrupt controller has this enabled */
|
||||
gic_enable_ppi(clk->irq);
|
||||
|
||||
clockevents_register_device(clk);
|
||||
}
|
||||
|
@ -23,8 +23,10 @@
|
||||
|
||||
#if defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)
|
||||
#define ARM_EXIT_KEEP(x) x
|
||||
#define ARM_EXIT_DISCARD(x)
|
||||
#else
|
||||
#define ARM_EXIT_KEEP(x)
|
||||
#define ARM_EXIT_DISCARD(x) x
|
||||
#endif
|
||||
|
||||
OUTPUT_ARCH(arm)
|
||||
@ -39,6 +41,11 @@ jiffies = jiffies_64 + 4;
|
||||
SECTIONS
|
||||
{
|
||||
/*
|
||||
* XXX: The linker does not define how output sections are
|
||||
* assigned to input sections when there are multiple statements
|
||||
* matching the same input section name. There is no documented
|
||||
* order of matching.
|
||||
*
|
||||
* unwind exit sections must be discarded before the rest of the
|
||||
* unwind sections get included.
|
||||
*/
|
||||
@ -47,6 +54,9 @@ SECTIONS
|
||||
*(.ARM.extab.exit.text)
|
||||
ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text))
|
||||
ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text))
|
||||
ARM_EXIT_DISCARD(EXIT_TEXT)
|
||||
ARM_EXIT_DISCARD(EXIT_DATA)
|
||||
EXIT_CALL
|
||||
#ifndef CONFIG_HOTPLUG
|
||||
*(.ARM.exidx.devexit.text)
|
||||
*(.ARM.extab.devexit.text)
|
||||
@ -58,6 +68,8 @@ SECTIONS
|
||||
#ifndef CONFIG_SMP_ON_UP
|
||||
*(.alt.smp.init)
|
||||
#endif
|
||||
*(.discard)
|
||||
*(.discard.*)
|
||||
}
|
||||
|
||||
#ifdef CONFIG_XIP_KERNEL
|
||||
@ -279,9 +291,6 @@ SECTIONS
|
||||
|
||||
STABS_DEBUG
|
||||
.comment 0 : { *(.comment) }
|
||||
|
||||
/* Default discards */
|
||||
DISCARDS
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -157,7 +157,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
|
||||
CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
|
||||
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
|
||||
CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.0", &tc1_clk),
|
||||
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc1_clk),
|
||||
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
|
||||
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
|
||||
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
|
||||
CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
|
||||
|
@ -8,7 +8,6 @@
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#include <mach/hardware.h>
|
||||
#include <asm/hardware/entry-macro-gic.S>
|
||||
|
||||
.macro disable_fiq
|
||||
|
@ -13,7 +13,6 @@
|
||||
|
||||
#include <linux/io.h>
|
||||
#include <asm/proc-fns.h>
|
||||
#include <mach/hardware.h>
|
||||
|
||||
static inline void arch_idle(void)
|
||||
{
|
||||
|
@ -8,7 +8,6 @@
|
||||
*/
|
||||
|
||||
#include <asm/mach-types.h>
|
||||
#include <mach/hardware.h>
|
||||
#include <mach/cns3xxx.h>
|
||||
|
||||
#define AMBA_UART_DR(base) (*(volatile unsigned char *)((base) + 0x00))
|
||||
|
@ -49,7 +49,7 @@ static struct cns3xxx_pcie *sysdata_to_cnspci(void *sysdata)
|
||||
return &cns3xxx_pcie[root->domain];
|
||||
}
|
||||
|
||||
static struct cns3xxx_pcie *pdev_to_cnspci(struct pci_dev *dev)
|
||||
static struct cns3xxx_pcie *pdev_to_cnspci(const struct pci_dev *dev)
|
||||
{
|
||||
return sysdata_to_cnspci(dev->sysdata);
|
||||
}
|
||||
|
@ -115,6 +115,32 @@ static struct spi_board_info da850evm_spi_info[] = {
|
||||
},
|
||||
};
|
||||
|
||||
#ifdef CONFIG_MTD
|
||||
static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
|
||||
{
|
||||
char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
|
||||
size_t retlen;
|
||||
|
||||
if (!strcmp(mtd->name, "MAC-Address")) {
|
||||
mtd->read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
|
||||
if (retlen == ETH_ALEN)
|
||||
pr_info("Read MAC addr from SPI Flash: %pM\n",
|
||||
mac_addr);
|
||||
}
|
||||
}
|
||||
|
||||
static struct mtd_notifier da850evm_spi_notifier = {
|
||||
.add = da850_evm_m25p80_notify_add,
|
||||
};
|
||||
|
||||
static void da850_evm_setup_mac_addr(void)
|
||||
{
|
||||
register_mtd_user(&da850evm_spi_notifier);
|
||||
}
|
||||
#else
|
||||
static void da850_evm_setup_mac_addr(void) { }
|
||||
#endif
|
||||
|
||||
static struct mtd_partition da850_evm_norflash_partition[] = {
|
||||
{
|
||||
.name = "bootloaders + env",
|
||||
@ -1244,6 +1270,8 @@ static __init void da850_evm_init(void)
|
||||
if (ret)
|
||||
pr_warning("da850_evm_init: sata registration failed: %d\n",
|
||||
ret);
|
||||
|
||||
da850_evm_setup_mac_addr();
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SERIAL_8250_CONSOLE
|
||||
|
@ -243,7 +243,7 @@
|
||||
#define PSC_STATE_DISABLE 2
|
||||
#define PSC_STATE_ENABLE 3
|
||||
|
||||
#define MDSTAT_STATE_MASK 0x1f
|
||||
#define MDSTAT_STATE_MASK 0x3f
|
||||
#define MDCTL_FORCE BIT(31)
|
||||
|
||||
#ifndef __ASSEMBLER__
|
||||
|
@ -217,7 +217,11 @@ ddr2clk_stop_done:
|
||||
ENDPROC(davinci_ddr_psc_config)
|
||||
|
||||
CACHE_FLUSH:
|
||||
.word arm926_flush_kern_cache_all
|
||||
#ifdef CONFIG_CPU_V6
|
||||
.word v6_flush_kern_cache_all
|
||||
#else
|
||||
.word arm926_flush_kern_cache_all
|
||||
#endif
|
||||
|
||||
ENTRY(davinci_cpu_suspend_sz)
|
||||
.word . - davinci_cpu_suspend
|
||||
|
@ -158,7 +158,7 @@ void __init dove_spi0_init(void)
|
||||
|
||||
void __init dove_spi1_init(void)
|
||||
{
|
||||
orion_spi_init(DOVE_SPI1_PHYS_BASE, get_tclk());
|
||||
orion_spi_1_init(DOVE_SPI1_PHYS_BASE, get_tclk());
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
|
@ -6,7 +6,7 @@
|
||||
* TS72xx memory map:
|
||||
*
|
||||
* virt phys size
|
||||
* febff000 22000000 4K model number register
|
||||
* febff000 22000000 4K model number register (bits 0-2)
|
||||
* febfe000 22400000 4K options register
|
||||
* febfd000 22800000 4K options register #2
|
||||
* febf9000 10800000 4K TS-5620 RTC index register
|
||||
@ -20,6 +20,9 @@
|
||||
#define TS72XX_MODEL_TS7200 0x00
|
||||
#define TS72XX_MODEL_TS7250 0x01
|
||||
#define TS72XX_MODEL_TS7260 0x02
|
||||
#define TS72XX_MODEL_TS7300 0x03
|
||||
#define TS72XX_MODEL_TS7400 0x04
|
||||
#define TS72XX_MODEL_MASK 0x07
|
||||
|
||||
|
||||
#define TS72XX_OPTIONS_PHYS_BASE 0x22400000
|
||||
@ -51,19 +54,34 @@
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
static inline int ts72xx_model(void)
|
||||
{
|
||||
return __raw_readb(TS72XX_MODEL_VIRT_BASE) & TS72XX_MODEL_MASK;
|
||||
}
|
||||
|
||||
static inline int board_is_ts7200(void)
|
||||
{
|
||||
return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7200;
|
||||
return ts72xx_model() == TS72XX_MODEL_TS7200;
|
||||
}
|
||||
|
||||
static inline int board_is_ts7250(void)
|
||||
{
|
||||
return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7250;
|
||||
return ts72xx_model() == TS72XX_MODEL_TS7250;
|
||||
}
|
||||
|
||||
static inline int board_is_ts7260(void)
|
||||
{
|
||||
return __raw_readb(TS72XX_MODEL_VIRT_BASE) == TS72XX_MODEL_TS7260;
|
||||
return ts72xx_model() == TS72XX_MODEL_TS7260;
|
||||
}
|
||||
|
||||
static inline int board_is_ts7300(void)
|
||||
{
|
||||
return ts72xx_model() == TS72XX_MODEL_TS7300;
|
||||
}
|
||||
|
||||
static inline int board_is_ts7400(void)
|
||||
{
|
||||
return ts72xx_model() == TS72XX_MODEL_TS7400;
|
||||
}
|
||||
|
||||
static inline int is_max197_installed(void)
|
||||
|
@ -520,7 +520,7 @@ static struct clk init_clocks_off[] = {
|
||||
.ctrlbit = (1 << 21),
|
||||
}, {
|
||||
.name = "ac97",
|
||||
.id = -1,
|
||||
.devname = "samsung-ac97",
|
||||
.enable = exynos4_clk_ip_peril_ctrl,
|
||||
.ctrlbit = (1 << 27),
|
||||
}, {
|
||||
@ -899,8 +899,7 @@ static struct clksrc_clk clksrcs[] = {
|
||||
.reg_div = { .reg = S5P_CLKDIV_CAM, .shift = 28, .size = 4 },
|
||||
}, {
|
||||
.clk = {
|
||||
.name = "sclk_cam",
|
||||
.devname = "exynos4-fimc.0",
|
||||
.name = "sclk_cam0",
|
||||
.enable = exynos4_clksrc_mask_cam_ctrl,
|
||||
.ctrlbit = (1 << 16),
|
||||
},
|
||||
@ -909,8 +908,7 @@ static struct clksrc_clk clksrcs[] = {
|
||||
.reg_div = { .reg = S5P_CLKDIV_CAM, .shift = 16, .size = 4 },
|
||||
}, {
|
||||
.clk = {
|
||||
.name = "sclk_cam",
|
||||
.devname = "exynos4-fimc.1",
|
||||
.name = "sclk_cam1",
|
||||
.enable = exynos4_clksrc_mask_cam_ctrl,
|
||||
.ctrlbit = (1 << 20),
|
||||
},
|
||||
@ -1160,7 +1158,7 @@ void __init_or_cpufreq exynos4_setup_clocks(void)
|
||||
|
||||
vpllsrc = clk_get_rate(&clk_vpllsrc.clk);
|
||||
vpll = s5p_get_pll46xx(vpllsrc, __raw_readl(S5P_VPLL_CON0),
|
||||
__raw_readl(S5P_VPLL_CON1), pll_4650);
|
||||
__raw_readl(S5P_VPLL_CON1), pll_4650c);
|
||||
|
||||
clk_fout_apll.ops = &exynos4_fout_apll_ops;
|
||||
clk_fout_mpll.rate = mpll;
|
||||
|
@ -24,12 +24,13 @@
|
||||
#include <plat/exynos4.h>
|
||||
#include <plat/adc-core.h>
|
||||
#include <plat/sdhci.h>
|
||||
#include <plat/devs.h>
|
||||
#include <plat/fb-core.h>
|
||||
#include <plat/fimc-core.h>
|
||||
#include <plat/iic-core.h>
|
||||
#include <plat/reset.h>
|
||||
|
||||
#include <mach/regs-irq.h>
|
||||
#include <mach/regs-pmu.h>
|
||||
|
||||
extern int combiner_init(unsigned int combiner_nr, void __iomem *base,
|
||||
unsigned int irq_start);
|
||||
@ -128,6 +129,11 @@ static void exynos4_idle(void)
|
||||
local_irq_enable();
|
||||
}
|
||||
|
||||
static void exynos4_sw_reset(void)
|
||||
{
|
||||
__raw_writel(0x1, S5P_SWRESET);
|
||||
}
|
||||
|
||||
/*
|
||||
* exynos4_map_io
|
||||
*
|
||||
@ -241,5 +247,8 @@ int __init exynos4_init(void)
|
||||
/* set idle function */
|
||||
pm_idle = exynos4_idle;
|
||||
|
||||
/* set sw_reset function */
|
||||
s5p_reset_hook = exynos4_sw_reset;
|
||||
|
||||
return sysdev_register(&exynos4_sysdev);
|
||||
}
|
||||
|
@ -80,9 +80,8 @@
|
||||
#define IRQ_HSMMC3 IRQ_SPI(76)
|
||||
#define IRQ_DWMCI IRQ_SPI(77)
|
||||
|
||||
#define IRQ_MIPICSI0 IRQ_SPI(78)
|
||||
|
||||
#define IRQ_MIPICSI1 IRQ_SPI(80)
|
||||
#define IRQ_MIPI_CSIS0 IRQ_SPI(78)
|
||||
#define IRQ_MIPI_CSIS1 IRQ_SPI(80)
|
||||
|
||||
#define IRQ_ONENAND_AUDI IRQ_SPI(82)
|
||||
#define IRQ_ROTATOR IRQ_SPI(83)
|
||||
|
@ -29,6 +29,8 @@
|
||||
#define S5P_USE_STANDBY_WFE1 (1 << 25)
|
||||
#define S5P_USE_MASK ((0x3 << 16) | (0x3 << 24))
|
||||
|
||||
#define S5P_SWRESET S5P_PMUREG(0x0400)
|
||||
|
||||
#define S5P_WAKEUP_STAT S5P_PMUREG(0x0600)
|
||||
#define S5P_EINT_WAKEUP_MASK S5P_PMUREG(0x0604)
|
||||
#define S5P_WAKEUP_MASK S5P_PMUREG(0x0608)
|
||||
|
@ -23,6 +23,8 @@
|
||||
|
||||
#include <mach/regs-gpio.h>
|
||||
|
||||
#include <asm/mach/irq.h>
|
||||
|
||||
static DEFINE_SPINLOCK(eint_lock);
|
||||
|
||||
static unsigned int eint0_15_data[16];
|
||||
@ -184,8 +186,11 @@ static inline void exynos4_irq_demux_eint(unsigned int start)
|
||||
|
||||
static void exynos4_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
|
||||
{
|
||||
struct irq_chip *chip = irq_get_chip(irq);
|
||||
chained_irq_enter(chip, desc);
|
||||
exynos4_irq_demux_eint(IRQ_EINT(16));
|
||||
exynos4_irq_demux_eint(IRQ_EINT(24));
|
||||
chained_irq_exit(chip, desc);
|
||||
}
|
||||
|
||||
static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
|
||||
@ -193,6 +198,7 @@ static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
|
||||
u32 *irq_data = irq_get_handler_data(irq);
|
||||
struct irq_chip *chip = irq_get_chip(irq);
|
||||
|
||||
chained_irq_enter(chip, desc);
|
||||
chip->irq_mask(&desc->irq_data);
|
||||
|
||||
if (chip->irq_ack)
|
||||
@ -201,6 +207,7 @@ static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
|
||||
generic_handle_irq(*irq_data);
|
||||
|
||||
chip->irq_unmask(&desc->irq_data);
|
||||
chained_irq_exit(chip, desc);
|
||||
}
|
||||
|
||||
int __init exynos4_init_irq_eint(void)
|
||||
|
@ -79,7 +79,7 @@ static struct s3c2410_uartcfg universal_uartcfgs[] __initdata = {
|
||||
};
|
||||
|
||||
static struct regulator_consumer_supply max8952_consumer =
|
||||
REGULATOR_SUPPLY("vddarm", NULL);
|
||||
REGULATOR_SUPPLY("vdd_arm", NULL);
|
||||
|
||||
static struct max8952_platform_data universal_max8952_pdata __initdata = {
|
||||
.gpio_vid0 = EXYNOS4_GPX0(3),
|
||||
@ -105,7 +105,7 @@ static struct max8952_platform_data universal_max8952_pdata __initdata = {
|
||||
};
|
||||
|
||||
static struct regulator_consumer_supply lp3974_buck1_consumer =
|
||||
REGULATOR_SUPPLY("vddint", NULL);
|
||||
REGULATOR_SUPPLY("vdd_int", NULL);
|
||||
|
||||
static struct regulator_consumer_supply lp3974_buck2_consumer =
|
||||
REGULATOR_SUPPLY("vddg3d", NULL);
|
||||
|
@ -132,12 +132,18 @@ static cycle_t exynos4_frc_read(struct clocksource *cs)
|
||||
return ((cycle_t)hi << 32) | lo;
|
||||
}
|
||||
|
||||
static void exynos4_frc_resume(struct clocksource *cs)
|
||||
{
|
||||
exynos4_mct_frc_start(0, 0);
|
||||
}
|
||||
|
||||
struct clocksource mct_frc = {
|
||||
.name = "mct-frc",
|
||||
.rating = 400,
|
||||
.read = exynos4_frc_read,
|
||||
.mask = CLOCKSOURCE_MASK(64),
|
||||
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
|
||||
.resume = exynos4_frc_resume,
|
||||
};
|
||||
|
||||
static void __init exynos4_clocksource_init(void)
|
||||
@ -389,9 +395,11 @@ static void exynos4_mct_tick_init(struct clock_event_device *evt)
|
||||
}
|
||||
|
||||
/* Setup the local clock events for a CPU */
|
||||
void __cpuinit local_timer_setup(struct clock_event_device *evt)
|
||||
int __cpuinit local_timer_setup(struct clock_event_device *evt)
|
||||
{
|
||||
exynos4_mct_tick_init(evt);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int local_timer_ack(void)
|
||||
|
@ -106,6 +106,8 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
|
||||
*/
|
||||
spin_lock(&boot_lock);
|
||||
spin_unlock(&boot_lock);
|
||||
|
||||
set_cpu_online(cpu, true);
|
||||
}
|
||||
|
||||
int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
|
||||
|
@ -19,15 +19,16 @@ void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
|
||||
|
||||
if (rows > 8) {
|
||||
/* Set all the necessary GPX2 pins: KP_ROW[0~7] */
|
||||
s3c_gpio_cfgrange_nopull(EXYNOS4_GPX2(0), 8, S3C_GPIO_SFN(3));
|
||||
s3c_gpio_cfgall_range(EXYNOS4_GPX2(0), 8, S3C_GPIO_SFN(3),
|
||||
S3C_GPIO_PULL_UP);
|
||||
|
||||
/* Set all the necessary GPX3 pins: KP_ROW[8~] */
|
||||
s3c_gpio_cfgrange_nopull(EXYNOS4_GPX3(0), (rows - 8),
|
||||
S3C_GPIO_SFN(3));
|
||||
s3c_gpio_cfgall_range(EXYNOS4_GPX3(0), (rows - 8),
|
||||
S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
|
||||
} else {
|
||||
/* Set all the necessary GPX2 pins: KP_ROW[x] */
|
||||
s3c_gpio_cfgrange_nopull(EXYNOS4_GPX2(0), rows,
|
||||
S3C_GPIO_SFN(3));
|
||||
s3c_gpio_cfgall_range(EXYNOS4_GPX2(0), rows, S3C_GPIO_SFN(3),
|
||||
S3C_GPIO_PULL_UP);
|
||||
}
|
||||
|
||||
/* Set all the necessary GPX1 pins to special-function 3: KP_COL[x] */
|
||||
|
@ -82,7 +82,7 @@ static int exynos4_usb_phy1_init(struct platform_device *pdev)
|
||||
|
||||
rstcon &= ~(HOST_LINK_PORT_SWRST_MASK | PHY1_SWRST_MASK);
|
||||
writel(rstcon, EXYNOS4_RSTCON);
|
||||
udelay(50);
|
||||
udelay(80);
|
||||
|
||||
clk_disable(otg_clk);
|
||||
clk_put(otg_clk);
|
||||
|
@ -62,6 +62,7 @@ config ARCH_EBSA285_HOST
|
||||
config ARCH_NETWINDER
|
||||
bool "NetWinder"
|
||||
select CLKSRC_I8253
|
||||
select CLKEVT_I8253
|
||||
select FOOTBRIDGE_HOST
|
||||
select ISA
|
||||
select ISA_DMA
|
||||
|
@ -18,6 +18,7 @@
|
||||
#include <linux/irq.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <video/vga.h>
|
||||
|
||||
#include <asm/irq.h>
|
||||
#include <asm/system.h>
|
||||
|
@ -331,6 +331,9 @@ int __init mx25_clocks_init(void)
|
||||
__raw_writel(__raw_readl(CRM_BASE+0x64) | (1 << 7) | (1 << 0),
|
||||
CRM_BASE + 0x64);
|
||||
|
||||
/* Clock source for gpt is ahb_div */
|
||||
__raw_writel(__raw_readl(CRM_BASE+0x64) & ~(1 << 5), CRM_BASE + 0x64);
|
||||
|
||||
mxc_timer_init(&gpt_clk, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
|
||||
|
||||
return 0;
|
||||
|
@ -310,7 +310,7 @@ static struct sys_timer eukrea_cpuimx27_timer = {
|
||||
.init = eukrea_cpuimx27_timer_init,
|
||||
};
|
||||
|
||||
MACHINE_START(CPUIMX27, "EUKREA CPUIMX27")
|
||||
MACHINE_START(EUKREA_CPUIMX27, "EUKREA CPUIMX27")
|
||||
.boot_params = MX27_PHYS_OFFSET + 0x100,
|
||||
.map_io = mx27_map_io,
|
||||
.init_early = imx27_init_early,
|
||||
|
@ -192,7 +192,7 @@ struct sys_timer eukrea_cpuimx35_timer = {
|
||||
.init = eukrea_cpuimx35_timer_init,
|
||||
};
|
||||
|
||||
MACHINE_START(EUKREA_CPUIMX35, "Eukrea CPUIMX35")
|
||||
MACHINE_START(EUKREA_CPUIMX35SD, "Eukrea CPUIMX35")
|
||||
/* Maintainer: Eukrea Electromatique */
|
||||
.boot_params = MX3x_PHYS_OFFSET + 0x100,
|
||||
.map_io = mx35_map_io,
|
||||
|
@ -161,7 +161,7 @@ static struct sys_timer eukrea_cpuimx25_timer = {
|
||||
.init = eukrea_cpuimx25_timer_init,
|
||||
};
|
||||
|
||||
MACHINE_START(EUKREA_CPUIMX25, "Eukrea CPUIMX25")
|
||||
MACHINE_START(EUKREA_CPUIMX25SD, "Eukrea CPUIMX25")
|
||||
/* Maintainer: Eukrea Electromatique */
|
||||
.boot_params = MX25_PHYS_OFFSET + 0x100,
|
||||
.map_io = mx25_map_io,
|
||||
|
@ -30,6 +30,7 @@
|
||||
#include <linux/input.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/delay.h>
|
||||
#include <sound/tlv320aic32x4.h>
|
||||
#include <asm/mach-types.h>
|
||||
#include <asm/mach/arch.h>
|
||||
#include <asm/mach/time.h>
|
||||
@ -196,6 +197,17 @@ static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
|
||||
.invert = 0,
|
||||
};
|
||||
|
||||
static struct aic32x4_pdata visstrim_m10_aic32x4_pdata = {
|
||||
.power_cfg = AIC32X4_PWR_MICBIAS_2075_LDOIN |
|
||||
AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE |
|
||||
AIC32X4_PWR_AIC32X4_LDO_ENABLE |
|
||||
AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36 |
|
||||
AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED,
|
||||
.micpga_routing = AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K |
|
||||
AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K,
|
||||
.swapdacs = false,
|
||||
};
|
||||
|
||||
static struct i2c_board_info visstrim_m10_i2c_devices[] = {
|
||||
{
|
||||
I2C_BOARD_INFO("pca9555", 0x20),
|
||||
@ -203,6 +215,7 @@ static struct i2c_board_info visstrim_m10_i2c_devices[] = {
|
||||
},
|
||||
{
|
||||
I2C_BOARD_INFO("tlv320aic32x4", 0x18),
|
||||
.platform_data = &visstrim_m10_aic32x4_pdata,
|
||||
}
|
||||
};
|
||||
|
||||
|
@ -468,7 +468,7 @@ static struct i2c_board_info __initdata mx31ads_i2c1_devices[] = {
|
||||
#endif
|
||||
};
|
||||
|
||||
static void mxc_init_i2c(void)
|
||||
static void __init mxc_init_i2c(void)
|
||||
{
|
||||
i2c_register_board_info(1, mx31ads_i2c1_devices,
|
||||
ARRAY_SIZE(mx31ads_i2c1_devices));
|
||||
@ -486,7 +486,7 @@ static unsigned int ssi_pins[] = {
|
||||
MX31_PIN_STXD5__STXD5,
|
||||
};
|
||||
|
||||
static void mxc_init_audio(void)
|
||||
static void __init mxc_init_audio(void)
|
||||
{
|
||||
imx31_add_imx_ssi(0, NULL);
|
||||
mxc_iomux_setup_multiple_pins(ssi_pins, ARRAY_SIZE(ssi_pins), "ssi");
|
||||
|
@ -192,7 +192,7 @@ static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
|
||||
.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
|
||||
};
|
||||
|
||||
static void lilly1131_usb_init(void)
|
||||
static void __init lilly1131_usb_init(void)
|
||||
{
|
||||
imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
|
||||
|
||||
|
@ -32,6 +32,7 @@
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/mtd/physmap.h>
|
||||
#include <video/vga.h>
|
||||
|
||||
#include <mach/hardware.h>
|
||||
#include <mach/platform.h>
|
||||
@ -154,6 +155,7 @@ static struct map_desc ap_io_desc[] __initdata = {
|
||||
static void __init ap_map_io(void)
|
||||
{
|
||||
iotable_init(ap_io_desc, ARRAY_SIZE(ap_io_desc));
|
||||
vga_base = PCI_MEMORY_VADDR;
|
||||
}
|
||||
|
||||
#define INTEGRATOR_SC_VALID_INT 0x003fffff
|
||||
@ -337,15 +339,15 @@ static unsigned long timer_reload;
|
||||
static void integrator_clocksource_init(u32 khz)
|
||||
{
|
||||
void __iomem *base = (void __iomem *)TIMER2_VA_BASE;
|
||||
u32 ctrl = TIMER_CTRL_ENABLE;
|
||||
u32 ctrl = TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC;
|
||||
|
||||
if (khz >= 1500) {
|
||||
khz /= 16;
|
||||
ctrl = TIMER_CTRL_DIV16;
|
||||
ctrl |= TIMER_CTRL_DIV16;
|
||||
}
|
||||
|
||||
writel(ctrl, base + TIMER_CTRL);
|
||||
writel(0xffff, base + TIMER_LOAD);
|
||||
writel(ctrl, base + TIMER_CTRL);
|
||||
|
||||
clocksource_mmio_init(base + TIMER_VALUE, "timer2",
|
||||
khz * 1000, 200, 16, clocksource_mmio_readl_down);
|
||||
|
@ -27,7 +27,6 @@
|
||||
#include <linux/spinlock.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/io.h>
|
||||
#include <video/vga.h>
|
||||
|
||||
#include <mach/hardware.h>
|
||||
#include <mach/platform.h>
|
||||
@ -505,7 +504,6 @@ void __init pci_v3_preinit(void)
|
||||
|
||||
pcibios_min_io = 0x6000;
|
||||
pcibios_min_mem = 0x00100000;
|
||||
vga_base = PCI_MEMORY_VADDR;
|
||||
|
||||
/*
|
||||
* Hook in our fault handler for PCI errors
|
||||
|
@ -16,16 +16,18 @@
|
||||
#include <mach/gpio.h>
|
||||
#include <mach/pxa168.h>
|
||||
#include <mach/mfp-pxa168.h>
|
||||
#include <mach/mfp-gplugd.h>
|
||||
|
||||
#include "common.h"
|
||||
|
||||
static unsigned long gplugd_pin_config[] __initdata = {
|
||||
/* UART3 */
|
||||
GPIO8_UART3_SOUT,
|
||||
GPIO9_UART3_SIN,
|
||||
GPI1O_UART3_CTS,
|
||||
GPI11_UART3_RTS,
|
||||
GPIO8_UART3_TXD,
|
||||
GPIO9_UART3_RXD,
|
||||
GPIO1O_UART3_CTS,
|
||||
GPIO11_UART3_RTS,
|
||||
|
||||
/* USB OTG PEN */
|
||||
GPIO18_GPIO,
|
||||
|
||||
/* MMC2 */
|
||||
GPIO28_MMC2_CMD,
|
||||
@ -109,6 +111,12 @@ static unsigned long gplugd_pin_config[] __initdata = {
|
||||
GPIO105_CI2C_SDA,
|
||||
GPIO106_CI2C_SCL,
|
||||
|
||||
/* SPI NOR Flash on SSP2 */
|
||||
GPIO107_SSP2_RXD,
|
||||
GPIO108_SSP2_TXD,
|
||||
GPIO110_GPIO, /* SPI_CSn */
|
||||
GPIO111_SSP2_CLK,
|
||||
|
||||
/* Select JTAG */
|
||||
GPIO109_GPIO,
|
||||
|
||||
@ -154,7 +162,7 @@ static void __init select_disp_freq(void)
|
||||
"frequency\n");
|
||||
} else {
|
||||
gpio_direction_output(35, 1);
|
||||
gpio_free(104);
|
||||
gpio_free(35);
|
||||
}
|
||||
|
||||
if (unlikely(gpio_request(85, "DISP_FREQ_SEL_2"))) {
|
||||
@ -162,7 +170,7 @@ static void __init select_disp_freq(void)
|
||||
"frequency\n");
|
||||
} else {
|
||||
gpio_direction_output(85, 0);
|
||||
gpio_free(104);
|
||||
gpio_free(85);
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -1,52 +0,0 @@
|
||||
/*
|
||||
* linux/arch/arm/mach-mmp/include/mach/mfp-gplugd.h
|
||||
*
|
||||
* MFP definitions used in gplugD
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef __MACH_MFP_GPLUGD_H
|
||||
#define __MACH_MFP_GPLUGD_H
|
||||
|
||||
#include <plat/mfp.h>
|
||||
#include <mach/mfp.h>
|
||||
|
||||
/* UART3 */
|
||||
#define GPIO8_UART3_SOUT MFP_CFG(GPIO8, AF2)
|
||||
#define GPIO9_UART3_SIN MFP_CFG(GPIO9, AF2)
|
||||
#define GPI1O_UART3_CTS MFP_CFG(GPIO10, AF2)
|
||||
#define GPI11_UART3_RTS MFP_CFG(GPIO11, AF2)
|
||||
|
||||
/* MMC2 */
|
||||
#define GPIO28_MMC2_CMD MFP_CFG_DRV(GPIO28, AF6, FAST)
|
||||
#define GPIO29_MMC2_CLK MFP_CFG_DRV(GPIO29, AF6, FAST)
|
||||
#define GPIO30_MMC2_DAT0 MFP_CFG_DRV(GPIO30, AF6, FAST)
|
||||
#define GPIO31_MMC2_DAT1 MFP_CFG_DRV(GPIO31, AF6, FAST)
|
||||
#define GPIO32_MMC2_DAT2 MFP_CFG_DRV(GPIO32, AF6, FAST)
|
||||
#define GPIO33_MMC2_DAT3 MFP_CFG_DRV(GPIO33, AF6, FAST)
|
||||
|
||||
/* I2S */
|
||||
#undef GPIO114_I2S_FRM
|
||||
#undef GPIO115_I2S_BCLK
|
||||
|
||||
#define GPIO114_I2S_FRM MFP_CFG_DRV(GPIO114, AF1, FAST)
|
||||
#define GPIO115_I2S_BCLK MFP_CFG_DRV(GPIO115, AF1, FAST)
|
||||
#define GPIO116_I2S_TXD MFP_CFG_DRV(GPIO116, AF1, FAST)
|
||||
|
||||
/* MMC4 */
|
||||
#define GPIO125_MMC4_DAT3 MFP_CFG_DRV(GPIO125, AF7, FAST)
|
||||
#define GPIO126_MMC4_DAT2 MFP_CFG_DRV(GPIO126, AF7, FAST)
|
||||
#define GPIO127_MMC4_DAT1 MFP_CFG_DRV(GPIO127, AF7, FAST)
|
||||
#define GPIO0_2_MMC4_DAT0 MFP_CFG_DRV(GPIO0_2, AF7, FAST)
|
||||
#define GPIO1_2_MMC4_CMD MFP_CFG_DRV(GPIO1_2, AF7, FAST)
|
||||
#define GPIO2_2_MMC4_CLK MFP_CFG_DRV(GPIO2_2, AF7, FAST)
|
||||
|
||||
/* OTG GPIO */
|
||||
#define GPIO_USB_OTG_PEN 18
|
||||
#define GPIO_USB_OIDIR 20
|
||||
|
||||
/* Other GPIOs are 35, 84, 85 */
|
||||
#endif /* __MACH_MFP_GPLUGD_H */
|
@ -203,6 +203,10 @@
|
||||
#define GPIO33_CF_nCD2 MFP_CFG(GPIO33, AF3)
|
||||
|
||||
/* UART */
|
||||
#define GPIO8_UART3_TXD MFP_CFG(GPIO8, AF2)
|
||||
#define GPIO9_UART3_RXD MFP_CFG(GPIO9, AF2)
|
||||
#define GPIO1O_UART3_CTS MFP_CFG(GPIO10, AF2)
|
||||
#define GPIO11_UART3_RTS MFP_CFG(GPIO11, AF2)
|
||||
#define GPIO88_UART2_TXD MFP_CFG(GPIO88, AF2)
|
||||
#define GPIO89_UART2_RXD MFP_CFG(GPIO89, AF2)
|
||||
#define GPIO107_UART1_TXD MFP_CFG_DRV(GPIO107, AF1, FAST)
|
||||
@ -232,6 +236,22 @@
|
||||
#define GPIO53_MMC1_CD MFP_CFG(GPIO53, AF1)
|
||||
#define GPIO46_MMC1_WP MFP_CFG(GPIO46, AF1)
|
||||
|
||||
/* MMC2 */
|
||||
#define GPIO28_MMC2_CMD MFP_CFG_DRV(GPIO28, AF6, FAST)
|
||||
#define GPIO29_MMC2_CLK MFP_CFG_DRV(GPIO29, AF6, FAST)
|
||||
#define GPIO30_MMC2_DAT0 MFP_CFG_DRV(GPIO30, AF6, FAST)
|
||||
#define GPIO31_MMC2_DAT1 MFP_CFG_DRV(GPIO31, AF6, FAST)
|
||||
#define GPIO32_MMC2_DAT2 MFP_CFG_DRV(GPIO32, AF6, FAST)
|
||||
#define GPIO33_MMC2_DAT3 MFP_CFG_DRV(GPIO33, AF6, FAST)
|
||||
|
||||
/* MMC4 */
|
||||
#define GPIO125_MMC4_DAT3 MFP_CFG_DRV(GPIO125, AF7, FAST)
|
||||
#define GPIO126_MMC4_DAT2 MFP_CFG_DRV(GPIO126, AF7, FAST)
|
||||
#define GPIO127_MMC4_DAT1 MFP_CFG_DRV(GPIO127, AF7, FAST)
|
||||
#define GPIO0_2_MMC4_DAT0 MFP_CFG_DRV(GPIO0_2, AF7, FAST)
|
||||
#define GPIO1_2_MMC4_CMD MFP_CFG_DRV(GPIO1_2, AF7, FAST)
|
||||
#define GPIO2_2_MMC4_CLK MFP_CFG_DRV(GPIO2_2, AF7, FAST)
|
||||
|
||||
/* LCD */
|
||||
#define GPIO84_LCD_CS MFP_CFG(GPIO84, AF1)
|
||||
#define GPIO60_LCD_DD0 MFP_CFG(GPIO60, AF1)
|
||||
@ -269,11 +289,12 @@
|
||||
#define GPIO106_CI2C_SCL MFP_CFG(GPIO106, AF1)
|
||||
|
||||
/* I2S */
|
||||
#define GPIO113_I2S_MCLK MFP_CFG(GPIO113,AF6)
|
||||
#define GPIO114_I2S_FRM MFP_CFG(GPIO114,AF1)
|
||||
#define GPIO115_I2S_BCLK MFP_CFG(GPIO115,AF1)
|
||||
#define GPIO116_I2S_RXD MFP_CFG(GPIO116,AF2)
|
||||
#define GPIO117_I2S_TXD MFP_CFG(GPIO117,AF2)
|
||||
#define GPIO113_I2S_MCLK MFP_CFG(GPIO113, AF6)
|
||||
#define GPIO114_I2S_FRM MFP_CFG(GPIO114, AF1)
|
||||
#define GPIO115_I2S_BCLK MFP_CFG(GPIO115, AF1)
|
||||
#define GPIO116_I2S_RXD MFP_CFG(GPIO116, AF2)
|
||||
#define GPIO116_I2S_TXD MFP_CFG(GPIO116, AF1)
|
||||
#define GPIO117_I2S_TXD MFP_CFG(GPIO117, AF2)
|
||||
|
||||
/* PWM */
|
||||
#define GPIO96_PWM3_OUT MFP_CFG(GPIO96, AF1)
|
||||
@ -324,4 +345,10 @@
|
||||
#define GPIO101_MII_MDIO MFP_CFG(GPIO101, AF5)
|
||||
#define GPIO103_RX_DV MFP_CFG(GPIO103, AF5)
|
||||
|
||||
/* SSP2 */
|
||||
#define GPIO107_SSP2_RXD MFP_CFG(GPIO107, AF4)
|
||||
#define GPIO108_SSP2_TXD MFP_CFG(GPIO108, AF4)
|
||||
#define GPIO111_SSP2_CLK MFP_CFG(GPIO111, AF4)
|
||||
#define GPIO112_SSP2_FRM MFP_CFG(GPIO112, AF4)
|
||||
|
||||
#endif /* __ASM_MACH_MFP_PXA168_H */
|
||||
|
@ -51,12 +51,12 @@ static inline uint32_t timer_read(void)
|
||||
{
|
||||
int delay = 100;
|
||||
|
||||
__raw_writel(1, TIMERS_VIRT_BASE + TMR_CVWR(0));
|
||||
__raw_writel(1, TIMERS_VIRT_BASE + TMR_CVWR(1));
|
||||
|
||||
while (delay--)
|
||||
cpu_relax();
|
||||
|
||||
return __raw_readl(TIMERS_VIRT_BASE + TMR_CVWR(0));
|
||||
return __raw_readl(TIMERS_VIRT_BASE + TMR_CVWR(1));
|
||||
}
|
||||
|
||||
unsigned long long notrace sched_clock(void)
|
||||
@ -75,28 +75,51 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
|
||||
{
|
||||
struct clock_event_device *c = dev_id;
|
||||
|
||||
/* disable and clear pending interrupt status */
|
||||
__raw_writel(0x0, TIMERS_VIRT_BASE + TMR_IER(0));
|
||||
__raw_writel(0x1, TIMERS_VIRT_BASE + TMR_ICR(0));
|
||||
/*
|
||||
* Clear pending interrupt status.
|
||||
*/
|
||||
__raw_writel(0x01, TIMERS_VIRT_BASE + TMR_ICR(0));
|
||||
|
||||
/*
|
||||
* Disable timer 0.
|
||||
*/
|
||||
__raw_writel(0x02, TIMERS_VIRT_BASE + TMR_CER);
|
||||
|
||||
c->event_handler(c);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int timer_set_next_event(unsigned long delta,
|
||||
struct clock_event_device *dev)
|
||||
{
|
||||
unsigned long flags, next;
|
||||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
/* clear pending interrupt status and enable */
|
||||
/*
|
||||
* Disable timer 0.
|
||||
*/
|
||||
__raw_writel(0x02, TIMERS_VIRT_BASE + TMR_CER);
|
||||
|
||||
/*
|
||||
* Clear and enable timer match 0 interrupt.
|
||||
*/
|
||||
__raw_writel(0x01, TIMERS_VIRT_BASE + TMR_ICR(0));
|
||||
__raw_writel(0x01, TIMERS_VIRT_BASE + TMR_IER(0));
|
||||
|
||||
next = timer_read() + delta;
|
||||
__raw_writel(next, TIMERS_VIRT_BASE + TMR_TN_MM(0, 0));
|
||||
/*
|
||||
* Setup new clockevent timer value.
|
||||
*/
|
||||
__raw_writel(delta - 1, TIMERS_VIRT_BASE + TMR_TN_MM(0, 0));
|
||||
|
||||
/*
|
||||
* Enable timer 0.
|
||||
*/
|
||||
__raw_writel(0x03, TIMERS_VIRT_BASE + TMR_CER);
|
||||
|
||||
local_irq_restore(flags);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -145,23 +168,26 @@ static struct clocksource cksrc = {
|
||||
static void __init timer_config(void)
|
||||
{
|
||||
uint32_t ccr = __raw_readl(TIMERS_VIRT_BASE + TMR_CCR);
|
||||
uint32_t cer = __raw_readl(TIMERS_VIRT_BASE + TMR_CER);
|
||||
uint32_t cmr = __raw_readl(TIMERS_VIRT_BASE + TMR_CMR);
|
||||
|
||||
__raw_writel(cer & ~0x1, TIMERS_VIRT_BASE + TMR_CER); /* disable */
|
||||
__raw_writel(0x0, TIMERS_VIRT_BASE + TMR_CER); /* disable */
|
||||
|
||||
ccr &= (cpu_is_mmp2()) ? TMR_CCR_CS_0(0) : TMR_CCR_CS_0(3);
|
||||
ccr &= (cpu_is_mmp2()) ? (TMR_CCR_CS_0(0) | TMR_CCR_CS_1(0)) :
|
||||
(TMR_CCR_CS_0(3) | TMR_CCR_CS_1(3));
|
||||
__raw_writel(ccr, TIMERS_VIRT_BASE + TMR_CCR);
|
||||
|
||||
/* free-running mode */
|
||||
__raw_writel(cmr | 0x01, TIMERS_VIRT_BASE + TMR_CMR);
|
||||
/* set timer 0 to periodic mode, and timer 1 to free-running mode */
|
||||
__raw_writel(0x2, TIMERS_VIRT_BASE + TMR_CMR);
|
||||
|
||||
__raw_writel(0x0, TIMERS_VIRT_BASE + TMR_PLCR(0)); /* free-running */
|
||||
__raw_writel(0x1, TIMERS_VIRT_BASE + TMR_PLCR(0)); /* periodic */
|
||||
__raw_writel(0x7, TIMERS_VIRT_BASE + TMR_ICR(0)); /* clear status */
|
||||
__raw_writel(0x0, TIMERS_VIRT_BASE + TMR_IER(0));
|
||||
|
||||
/* enable timer counter */
|
||||
__raw_writel(cer | 0x01, TIMERS_VIRT_BASE + TMR_CER);
|
||||
__raw_writel(0x0, TIMERS_VIRT_BASE + TMR_PLCR(1)); /* free-running */
|
||||
__raw_writel(0x7, TIMERS_VIRT_BASE + TMR_ICR(1)); /* clear status */
|
||||
__raw_writel(0x0, TIMERS_VIRT_BASE + TMR_IER(1));
|
||||
|
||||
/* enable timer 1 counter */
|
||||
__raw_writel(0x2, TIMERS_VIRT_BASE + TMR_CER);
|
||||
}
|
||||
|
||||
static struct irqaction timer_irq = {
|
||||
|
@ -81,7 +81,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
|
||||
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP,
|
||||
}, {
|
||||
.mapbase = (unsigned long)(MX51_CS1_BASE_ADDR + 0x2000000),
|
||||
.irq = irq_to_gpio(CPUIMX51_QUARTD_GPIO),
|
||||
.irq = gpio_to_irq(CPUIMX51_QUARTD_GPIO),
|
||||
.irqflags = IRQF_TRIGGER_HIGH,
|
||||
.uartclk = CPUIMX51_QUART_XTAL,
|
||||
.regshift = CPUIMX51_QUART_REGSHIFT,
|
||||
|
@ -369,7 +369,7 @@ static void __init mx51_babbage_init(void)
|
||||
ARRAY_SIZE(mx51babbage_pads));
|
||||
|
||||
imx51_add_imx_uart(0, &uart_pdata);
|
||||
imx51_add_imx_uart(1, &uart_pdata);
|
||||
imx51_add_imx_uart(1, NULL);
|
||||
imx51_add_imx_uart(2, &uart_pdata);
|
||||
|
||||
babbage_fec_reset();
|
||||
|
@ -108,9 +108,9 @@ static void __init mx51_efikamx_board_id(void)
|
||||
gpio_request(EFIKAMX_PCBID2, "pcbid2");
|
||||
gpio_direction_input(EFIKAMX_PCBID2);
|
||||
|
||||
id = gpio_get_value(EFIKAMX_PCBID0);
|
||||
id |= gpio_get_value(EFIKAMX_PCBID1) << 1;
|
||||
id |= gpio_get_value(EFIKAMX_PCBID2) << 2;
|
||||
id = gpio_get_value(EFIKAMX_PCBID0) ? 1 : 0;
|
||||
id |= (gpio_get_value(EFIKAMX_PCBID1) ? 1 : 0) << 1;
|
||||
id |= (gpio_get_value(EFIKAMX_PCBID2) ? 1 : 0) << 2;
|
||||
|
||||
switch (id) {
|
||||
case 7:
|
||||
|
@ -156,23 +156,24 @@ static struct gpio_keys_button mx51_efikasb_keys[] = {
|
||||
{
|
||||
.code = KEY_POWER,
|
||||
.gpio = EFIKASB_PWRKEY,
|
||||
.type = EV_PWR,
|
||||
.type = EV_KEY,
|
||||
.desc = "Power Button",
|
||||
.wakeup = 1,
|
||||
.debounce_interval = 10, /* ms */
|
||||
.active_low = 1,
|
||||
},
|
||||
{
|
||||
.code = SW_LID,
|
||||
.gpio = EFIKASB_LID,
|
||||
.type = EV_SW,
|
||||
.desc = "Lid Switch",
|
||||
.active_low = 1,
|
||||
},
|
||||
{
|
||||
/* SW_RFKILLALL vs KEY_RFKILL ? */
|
||||
.code = SW_RFKILL_ALL,
|
||||
.code = KEY_RFKILL,
|
||||
.gpio = EFIKASB_RFKILL,
|
||||
.type = EV_SW,
|
||||
.type = EV_KEY,
|
||||
.desc = "rfkill",
|
||||
.active_low = 1,
|
||||
},
|
||||
};
|
||||
|
||||
@ -224,8 +225,8 @@ static void __init mx51_efikasb_board_id(void)
|
||||
gpio_request(EFIKASB_PCBID1, "pcb id1");
|
||||
gpio_direction_input(EFIKASB_PCBID1);
|
||||
|
||||
id = gpio_get_value(EFIKASB_PCBID0);
|
||||
id |= gpio_get_value(EFIKASB_PCBID1) << 1;
|
||||
id = gpio_get_value(EFIKASB_PCBID0) ? 1 : 0;
|
||||
id |= (gpio_get_value(EFIKASB_PCBID1) ? 1 : 0) << 1;
|
||||
|
||||
switch (id) {
|
||||
default:
|
||||
|
@ -271,7 +271,11 @@ static int _clk_pll_enable(struct clk *clk)
|
||||
int i = 0;
|
||||
|
||||
pllbase = _get_pll_base(clk);
|
||||
reg = __raw_readl(pllbase + MXC_PLL_DP_CTL) | MXC_PLL_DP_CTL_UPEN;
|
||||
reg = __raw_readl(pllbase + MXC_PLL_DP_CTL);
|
||||
if (reg & MXC_PLL_DP_CTL_UPEN)
|
||||
return 0;
|
||||
|
||||
reg |= MXC_PLL_DP_CTL_UPEN;
|
||||
__raw_writel(reg, pllbase + MXC_PLL_DP_CTL);
|
||||
|
||||
/* Wait for lock */
|
||||
|
@ -186,7 +186,7 @@ static int initialize_usbh1_port(struct platform_device *pdev)
|
||||
|
||||
mdelay(10);
|
||||
|
||||
return mx51_initialize_usb_hw(0, MXC_EHCI_ITC_NO_THRESHOLD);
|
||||
return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_ITC_NO_THRESHOLD);
|
||||
}
|
||||
|
||||
static struct mxc_usbh_platform_data usbh1_config = {
|
||||
|
@ -7,7 +7,6 @@ config ARCH_OMAP2PLUS_TYPICAL
|
||||
default y
|
||||
select AEABI
|
||||
select REGULATOR
|
||||
select PM
|
||||
select PM_RUNTIME
|
||||
select VFP
|
||||
select NEON if ARCH_OMAP3 || ARCH_OMAP4
|
||||
|
@ -193,7 +193,8 @@ static int __init omap2430_i2c_init(void)
|
||||
{
|
||||
omap_register_i2c_bus(1, 100, sdp2430_i2c1_boardinfo,
|
||||
ARRAY_SIZE(sdp2430_i2c1_boardinfo));
|
||||
omap2_pmic_init("twl4030", &sdp2430_twldata);
|
||||
omap_pmic_init(2, 100, "twl4030", INT_24XX_SYS_NIRQ,
|
||||
&sdp2430_twldata);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
@ -45,8 +45,6 @@ static struct omap_board_config_kernel am3517_crane_config[] __initdata = {
|
||||
static struct omap_board_mux board_mux[] __initdata = {
|
||||
{ .reg_offset = OMAP_MUX_TERMINATOR },
|
||||
};
|
||||
#else
|
||||
#define board_mux NULL
|
||||
#endif
|
||||
|
||||
static void __init am3517_crane_init_early(void)
|
||||
|
@ -491,23 +491,22 @@ static void __init beagle_opp_init(void)
|
||||
|
||||
/* Custom OPP enabled for all xM versions */
|
||||
if (cpu_is_omap3630()) {
|
||||
struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
|
||||
struct omap_hwmod *dh = omap_hwmod_lookup("iva");
|
||||
struct device *dev;
|
||||
struct device *mpu_dev, *iva_dev;
|
||||
|
||||
if (!mh || !dh) {
|
||||
mpu_dev = omap2_get_mpuss_device();
|
||||
iva_dev = omap2_get_iva_device();
|
||||
|
||||
if (!mpu_dev || !iva_dev) {
|
||||
pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
|
||||
__func__, mh, dh);
|
||||
__func__, mpu_dev, iva_dev);
|
||||
return;
|
||||
}
|
||||
/* Enable MPU 1GHz and lower opps */
|
||||
dev = &mh->od->pdev.dev;
|
||||
r = opp_enable(dev, 800000000);
|
||||
r = opp_enable(mpu_dev, 800000000);
|
||||
/* TODO: MPU 1GHz needs SR and ABB */
|
||||
|
||||
/* Enable IVA 800MHz and lower opps */
|
||||
dev = &dh->od->pdev.dev;
|
||||
r |= opp_enable(dev, 660000000);
|
||||
r |= opp_enable(iva_dev, 660000000);
|
||||
/* TODO: DSP 800MHz needs SR and ABB */
|
||||
if (r) {
|
||||
pr_err("%s: failed to enable higher opp %d\n",
|
||||
@ -516,10 +515,8 @@ static void __init beagle_opp_init(void)
|
||||
* Cleanup - disable the higher freqs - we dont care
|
||||
* about the results
|
||||
*/
|
||||
dev = &mh->od->pdev.dev;
|
||||
opp_disable(dev, 800000000);
|
||||
dev = &dh->od->pdev.dev;
|
||||
opp_disable(dev, 660000000);
|
||||
opp_disable(mpu_dev, 800000000);
|
||||
opp_disable(iva_dev, 660000000);
|
||||
}
|
||||
}
|
||||
return;
|
||||
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user