Commit graph

506,942 commits

Author SHA1 Message Date
Greg Rose
5017c2a8af i40e: Allow VF to set already assigned MAC address
The VF is allowed to request the PF to set its already assigned
MAC address without generating an error.

Change-Id: I8dfdf353396995dbbb26cafab4e42b451911da3d
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-01-07 21:49:30 -08:00
Greg Rose
6bbac866ce i40e: Stop accepting any VLAN tag on VLAN 0 filter set
When the 8021q driver is loaded it sets VLAN 0 filters on all devices.
This does not mean that any VLAN tagged packet should be accepted.
Instead accept only VLAN 0 tagged packets so that upper layers can
interpret the priority bits.

Change-Id: I17274a540b613749612ffe23a3aef2b8ee6ff6a4
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-01-07 21:49:26 -08:00
Greg Rose
1a10370ae3 i40e: Do not enable broadcast promiscuous by default
Broadcast promiscuous should only be turned on when general
promiscuous mode is turned on, otherwise VLAN tagged packets out of
the assigned VLAN domain are received.

Add a broadcast MAC filter in order to continue to receive
broadcast traffic on VLANs, MAIN or VMDQ VSI.

Change-Id: I99d8e382a082ee51201228f1226af3b46452ac55
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-01-07 21:49:18 -08:00
Anjali Singhai Jain
f1143c4b0f i40e: Expose AQ debugfs hooks
Add more functionality to debugfs to assist development
and testing of AQ commands.

adds:
send aq_cmd
send indirect aq_cmd

Change-Id: I01710cddd33110a6c1e1aabf84cb6e93cda4c42a
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-01-07 21:42:33 -08:00
Jaegeuk Kim
b1c57c1caa f2fs: add a sysfs entry to control max_victim_search
Previously during SSR and GC, the maximum number of retrials to find a victim
segment was hard-coded by MAX_VICTIM_SEARCH, 4096 by default.

This number makes an effect on IO locality, when SSR mode is activated, which
results in performance fluctuation on some low-end devices.

If max_victim_search = 4, the victim will be searched like below.
("D" represents a dirty segment, and "*" indicates a selected victim segment.)

 D1 D2 D3 D4 D5 D6 D7 D8 D9
[   *       ]
      [   *    ]
            [         * ]
	                [ ....]

This patch adds a sysfs entry to control the number dynamically through:
  /sys/fs/f2fs/$dev/max_victim_search

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-01-08 13:45:08 +09:00
Ying Xue
da7c224b1b net: xfrm: xfrm_policy: silence compiler warning
Fix below compiler warning:

net/xfrm/xfrm_policy.c:1644:12: warning: ‘xfrm_dst_alloc_copy’ defined but not used [-Wunused-function]

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-07 22:45:26 -05:00
Jaegeuk Kim
fb5566da91 f2fs: improve write performance under frequent fsync calls
When considering a bunch of data writes with very frequent fsync calls, we
are able to think the following performance regression.

N: Node IO, D: Data IO, IO scheduler: cfq

Issue    pending IOs
	 D1 D2 D3 D4
 D1         D2 D3 D4 N1
 D2            D3 D4 N1 N2
 N1            D3 D4 N2 D1
 --> N1 can be selected by cfq becase of the same priority of N and D.
     Then D3 and D4 would be delayed, resuling in performance degradation.

So, when processing the fsync call, it'd better give higher priority to data IOs
than node IOs by assigning WRITE and WRITE_SYNC respectively.
This patch improves the random wirte performance with frequent fsync calls by up
to 10%.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-01-08 11:16:20 +09:00
Joe Thornber
7e664b3dec dm space map metadata: fix extending the space map
When extending a metadata space map we should do the first commit whilst
still in bootstrap mode -- a mode where all blocks get allocated in the
new area.

That way the commit overhead is allocated from the newly added space.
Otherwise we risk running out of space.

With this fix, and the previous commit "dm space map common: make sure
new space is used during extend", the following device mapper testsuite
test passes:
 dmtest run --suite thin-provisioning -n /resize_metadata_no_io/

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2014-01-07 21:05:18 -05:00
Joe Thornber
12c91a5c2d dm space map common: make sure new space is used during extend
When extending a low level space map we should update nr_blocks at
the start so the new space is used for the index entries.

Otherwise extend can fail, e.g.: sm_metadata_extend call sequence
that fails:
 -> sm_ll_extend
    -> dm_tm_new_block -> dm_sm_new_block -> sm_bootstrap_new_block
    => returns -ENOSPC because smm->begin == smm->ll.nr_blocks

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2014-01-07 21:05:17 -05:00
Mikulas Patocka
be35f48610 dm: wait until embedded kobject is released before destroying a device
There may be other parts of the kernel holding a reference on the dm
kobject.  We must wait until all references are dropped before
deallocating the mapped_device structure.

The dm_kobject_release method signals that all references are dropped
via completion.  But dm_kobject_release doesn't free the kobject (which
is embedded in the mapped_device structure).

This is the sequence of operations:
* when destroying a DM device, call kobject_put from dm_sysfs_exit
* wait until all users stop using the kobject, when it happens the
  release method is called
* the release method signals the completion and should return without
  delay
* the dm device removal code that waits on the completion continues
* the dm device removal code drops the dm_mod reference the device had
* the dm device removal code frees the mapped_device structure that
  contains the kobject

Using kobject this way should avoid the module unload race that was
mentioned at the beginning of this thread:
https://lkml.org/lkml/2014/1/4/83

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2014-01-07 21:01:43 -05:00
Wang Dongsheng
1d47ddf7c3 powerpc/85xx: add hardware automatically enter pw20 state
Using hardware features make core automatically enter PW20 state.
Set a TB count to hardware, the effective count begins when PW10
is entered. When the effective period has expired, the core will
proceed from PW10 to PW20 if no exit conditions have occurred during
the period.

Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:40:28 -06:00
Wang Dongsheng
202e059ce3 powerpc/85xx: add hardware automatically enter altivec idle state
Each core's AltiVec unit may be placed into a power savings mode
by turning off power to the unit. Core hardware will automatically
power down the AltiVec unit after no AltiVec instructions have
executed in N cycles. The AltiVec power-control is triggered by hardware.

Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:39:48 -06:00
Wang Dongsheng
71a6fa17e1 powerpc/fsl: add E6500 PVR and SPRN_PWRMGTCR0 define
E6500 PVR and SPRN_PWRMGTCR0 will be used in subsequent pw20/altivec
idle patches.

Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:29:23 -06:00
Ezequiel Garcia
f6a638bd0c ARM: OMAP2+: Select USB PHY for AM335x SoC
Enable this option as it's required to use USB on AM335x SoC.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-01-07 17:27:40 -08:00
Christian Engelmayer
1e83bf875e powerpc/sysdev: Fix a pci section mismatch for Book E
Moved the following functions out of the __init section:

   arch/powerpc/sysdev/fsl_pci.c      : fsl_add_bridge()
   arch/powerpc/sysdev/indirect_pci.c : setup_indirect_pci()

Those are referenced by arch/powerpc/sysdev/fsl_pci.c : fsl_pci_probe() when
compiling for Book E support.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:23:31 -06:00
Simon Schuster
98e5491731 Staging: vt6656: Reduce line length of bssdb.c
Long lines are split into multiple ones to reduce the line length.
Additionally some alignment fixes are made that previous patches
missed.

Unfortunately, due to the high indentation levels present in parts of
bssdb.c, this patch leaves some lines which are longer than 80
characters.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:59 -08:00
Sebastian Rachuj
5918ed4203 Staging: vt6656: Remove explicit comparisons against NULL
Explicit comparisons of pointers agains NULL
(like if (p != NULL) ...) are not as readable as the implicit
comparison (like if (p) ...). This patch converts all these explicit
comparisons to implicit ones.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Sebastian Rachuj
72cac30225 Staging: vt6656: Remove bogus parentheses in conditions
Removes unrequired parentheses around comparisons in complex
conditions.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
8f284d79fc Staging: vt6656: Combined nested conditions
This patch reduces the level of indentation in bssdb.c of the vt6656
driver by transforming nested conditions to a series of logical
conjunctions. E.g.

if (cond1) {
        if (cond2) {
                block();
        }
}

is transformed to

if (cond1 && cond2) {
        block();
}

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
b7fce6aec1 Staging: vt6656: Correct usage of braces
Conforming to the linux coding style guidelines, a single line block
of an if statement does not require curly braces unless another block
of the if cascade requires them. Therefore unnecessary curly braces
are removed by this patch and missing ones are added.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
fd2251e233 Staging: vt6656: Combine "else { if" to "else if"
This patch combines single ifs within the block of an else to a single
else if statement.

Therefore code that looks like that

else {
	if (cond) {
		statements;
	} else {
		other_statements;
	}
}

is converted to code that looks like that

else if (cond) {
	statements;
} else {
	other_statements;
}

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
6c64bf8af9 Staging: vt6656: Remove unnecessary spaces in format strings
A space in a format string is unnecessary if it is followed by a line
feed. These spaces are removed by this patch.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
dad2ddbdbf Staging: vt6656: Remove line feeds before else
An else belongs in the same line as the closing curly brace of the
previous block. Hence, this patch removes line feeds separating a
curly brace from the corresponding else.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
77226ed70b Staging: vt6656: Correct single space mistakes
Adds missing spaces between an if-statement and its condition as well
as between the condition and the following curly brace. At casts
there is also a space added between the type and the variable.

Spaces that either follow an opening parenthese or the sizeof operator
or that preceed semicolons are removed as well.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
e435ef1626 Staging: vt6656: Correct operator coding style
Adds spaces around operators (like &&, ||, !=, +, ...) and removes
spaces before postfix increment and decrement operators. Parentheses
around return values are removed, too.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
13a36fe9aa Staging: vt6656: Remove unnecessary semicolons
After some blocks in bssdb.c there are semicolons that are not
required to be there. Therefore they are removed with this patch.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
14feab1763 Staging: vt6656: Adjust comments in bssdb.c
Changes C99-style comments to C89-style ones to conform to the linux
coding guidelines. Additionally removes plus and minus signs from the
function description comments.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:58 -08:00
Simon Schuster
0863b4e21f Staging: vt6656: Fix indentation of bssdb.c
Corrects indentation by using tabs instead of spaces. This also
includes modification of the alignment of multi-line expressions and
statements.

Signed-off-by: Sebastian Rachuj <sebastian.rachuj@studium.uni-erlangen.de>
Signed-off-by: Simon Schuster <linux@rationality.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:17:54 -08:00
Zhao Qiang
8b52312880 powerpc/p1010rdb-pa: modify phy interrupt.
It is not correct according to p1010rdb-pa user guide.
So modify it.

Signed-off-by: Zhao Qiang <B45475@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:15:12 -06:00
Stephen Warren
3685f19e07 serial: 8250: enable UART_BUG_NOMSR for Tegra
Tegra chips have 4 or 5 identical UART modules embedded. UARTs C..E have
their MODEM-control signals tied off to a static state. However UARTs A
and B can optionally route those signals to/from package pins, depending
on the exact pinmux configuration.

When these signals are not routed to package pins, false interrupts may
trigger either temporarily, or permanently, all while not showing up in
the IIR; it will read as NO_INT. This will eventually lead to the UART
IRQ being disabled due to unhandled interrupts. When this happens, the
kernel may print e.g.:

    irq 68: nobody cared (try booting with the "irqpoll" option)

In order to prevent this, enable UART_BUG_NOMSR. This prevents
UART_IER_MSI from being enabled, which prevents the false interrupts
from triggering.

In practice, this is not needed under any of the following conditions:

* On Tegra chips after Tegra30, since the HW bug has apparently been
  fixed.

* On UARTs C..E since their MODEM control signals are tied to the correct
  static state which doesn't trigger the issue.

* On UARTs A..B if the MODEM control signals are routed out to package
  pins, since they will then carry valid signals.

However, we ignore these exceptions for now, since they are only relevant
if a board actually hooks up more than a 4-wire UART, and no currently
supported board does this. If we ever support a board that does, we can
refine the algorithm that enables UART_BUG_NOMSR to take those exceptions
into account, and/or read a flag from DT/... that indicates that the
board has hooked up and pinmux'd more than a 4-wire UART.

Reported-by: Olof Johansson <olof@lixom.net> # autotester
Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:14:24 -08:00
Mark Deneen
bb7e73c598 tty/serial: at91: reset rx_ring when port is shutdown
When using RX DMA, the driver won't pass any data to the uart layer
until the buffer is flipped. When the port is shutdown, the dma buffers
are unmapped, but the head and tail of the ring buffer are not reseted.
Since the serial console will keep the port open, this will only
present itself when the uart is not shared.

To reproduce the issue, with an unpatched driver, run a getty on /dev/ttyS0
with no serial console and exit. Getty will exit, and when the new one returns
you will be unable to log in.  If you hold down a key long enough to fill the
DMA buffer and flip it, you can then log in.

Signed-off-by: Mark Deneen <mdeneen@gmail.com>
Acked-by: Leilei Zhao <leilei.zhao@atmel.com>
[nicolas.ferre@atmel.com: adapt to mainline kernel, handle !DMA case]
Cc: <stable@vger.kernel.org> # v3.12
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:11:48 -08:00
LEROY Christophe
189046981b powerpc 8xx: defconfig: slice by 4 is more efficient than the default slice by 8 on Powerpc 8xx.
On PPC_8xx, CRC32_SLICEBY4 is more efficient (almost twice) than CRC32_SLICEBY8,
as shown below:

With CRC32_SLICEBY8:
[    1.109204] crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64
[    1.114401] crc32: self tests passed, processed 225944 bytes in 15118910 nsec
[    1.130655] crc32c: CRC_LE_BITS = 64
[    1.134235] crc32c: self tests passed, processed 225944 bytes in 4479879 nsec

With CRC32_SLICEBY4:
[    1.097129] crc32: CRC_LE_BITS = 32, CRC_BE BITS = 32
[    1.101878] crc32: self tests passed, processed 225944 bytes in 8616242 nsec
[    1.116298] crc32c: CRC_LE_BITS = 32
[    1.119607] crc32c: self tests passed, processed 225944 bytes in 3289576 nsec

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:11:20 -06:00
Marek Roszko
f50c995f9e tty/serial: at91: fix race condition in atmel_serial_remove
The _remove callback could be called when a tasklet is scheduled. tasklet_kill
was called inside the function in order to free up any scheduled tasklets.
However it was called after uart_remove_one_port which destroys tty references
needed in the port for atmel_tasklet_func.
Simply putting the tasklet_kill at the start of the function will prevent this
conflict.

Signed-off-by: Marek Roszko <mark.roszko@gmail.com>
Acked-by: Leilei Zhao <leilei.zhao@atmel.com>
Cc: <stable@vger.kernel.org> # v3.12
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:10:24 -08:00
Marek Roszko
0cc7c6c791 tty/serial: at91: Handle shutdown more safely
Interrupts were being cleaned up late in the shutdown handler, it is possible
that an interrupt can occur and schedule a tasklet that runs after the port is
cleaned up. There is a null dereference due to this race condition with the
following stacktrace:

[<c02092b0>] (atmel_tasklet_func+0x514/0x814) from [<c001fd34>] (tasklet_action+0x70/0xa8)
[<c001fd34>] (tasklet_action+0x70/0xa8) from [<c001f60c>] (__do_softirq+0x90/0x144)
[<c001f60c>] (__do_softirq+0x90/0x144) from [<c001fa18>] (irq_exit+0x40/0x4c)
[<c001fa18>] (irq_exit+0x40/0x4c) from [<c000e298>] (handle_IRQ+0x64/0x84)
[<c000e298>] (handle_IRQ+0x64/0x84) from [<c000d6c0>] (__irq_svc+0x40/0x50)
[<c000d6c0>] (__irq_svc+0x40/0x50) from [<c0208060>] (atmel_rx_dma_release+0x88/0xb8)
[<c0208060>] (atmel_rx_dma_release+0x88/0xb8) from [<c0209740>] (atmel_shutdown+0x104/0x160)
[<c0209740>] (atmel_shutdown+0x104/0x160) from [<c0205e8c>] (uart_port_shutdown+0x2c/0x38)

Signed-off-by: Marek Roszko <mark.roszko@gmail.com>
Acked-by: Leilei Zhao <leilei.zhao@atmel.com>
Cc: <stable@vger.kernel.org> # v3.12
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:10:24 -08:00
Xie Xiaobo
8a6be2bdb6 powerpc/85xx: Add TWR-P1025 board support
TWR-P1025 Overview
 -----------------
 512Mbyte DDR3 (on board DDR)
 64MB Nor Flash
 eTSEC1: Connected to RGMII PHY AR8035
 eTSEC3: Connected to RGMII PHY AR8035
 Two USB2.0 Type A
 One microSD Card slot
 One mini-PCIe slot
 One mini-USB TypeB dual UART

Signed-off-by: Michael Johnston <michael.johnston@freescale.com>
Signed-off-by: Xie Xiaobo <X.Xie@freescale.com>
[scottwood@freescale.com: use pr_info rather than KERN_INFO]
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:09:29 -06:00
Qipan Li
df8d4aa0d8 serial: sirf: correct condition for fetching dma buffer into tty
In rx dma-callback it calls tasklet_schedule, if the tasklet
be scheduled after all the dma-callback in the rx dma channel,
current check condition in the tasklet will not do fetch dma
buffer into tty because tx_issued is equal with tx_completed,
so as timeout tasklet does.

so we check whether we should fetch the whole dma buffer into
tty according to the status of transactions in rx dma channel.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:09:04 -08:00
Qipan Li
388faf9ffd serial: sirf: provide pm entries of uart_ops
this patch provides PM entry of uart_ops, then drop clk enable and
disable because serial core will do it.

the patch also fixes the issue that uart hang in resume caused by
not-enabled clock.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:09:04 -08:00
Qipan Li
99e626f504 serial: sirf: use PM macro initialize PM functions
use SET_SYSTEM_SLEEP_PM_OPS to initialize suspend/resume functions
instead of legacy suspend and resume entries of platform_driver.
this will add hibernation support automatically as suspend to disk
entries are also set.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:09:04 -08:00
Xie Xiaobo
72c916ae97 powerpc/85xx: Add QE common init function
Define a QE init function in common file, and avoid
the same codes being duplicated in board files.

Signed-off-by: Xie Xiaobo <X.Xie@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:08:53 -06:00
Alexander Shiyan
093a9e2a20 serial: clps711x: Enable driver compilation with COMPILE_TEST
This helps increasing build testing coverage.
To do this, read{write}_relaxed() functions was be replaced with
simple read{write}() variants. Potential "uninitialized variable"
warnings was be fixed if driver compiled without MFD_SYSCON.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:06:18 -08:00
Alexander Shiyan
71b9e8c669 serial: clps711x: Add support for N_IRDA line discipline
This patch replace custom handling of IrDA feature with N_IRDA
line discipline, so IrDA mode can be used with irtty driver.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:06:18 -08:00
Lijun Pan
3d73eb69fb powerpc/85xx: Merge 85xx/p1023_defconfig into mpc85xx_smp and mpc85xx
mpc85xx_smp_defconfig and mpc85xx_defconfig already have CONFIG_P1023RDS=y.
Merge CONFIG_P1023RDB=y and other relevant configurations into
mpc85xx_smp_defconfig and mpc85_defconfig.

Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:06:04 -06:00
Scott Wood
b58a7bd6df powerpc/fsl-booke: Use SPRN_SPRGn rather than mfsprg/mtsprg
This fixes a build break that was probably introduced with the removal
of -Wa,-me500 (commit f49596a4cf), where
the assembler refuses to recognize SPRG4-7 with a generic PPC target.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Dongsheng Wang <dongsheng.wang@freescale.com>
Cc: Anton Vorontsov <avorontsov@mvista.com>
Reviewed-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Tested-by: Wang Dongsheng <dongsheng.wang@freescale.com>
2014-01-07 19:06:03 -06:00
Kevin Hao
455d23a890 powerpc/85xx: don't init the mpic ipi for the SoC which has doorbell support
It makes no sense to initialize the mpic ipi for the SoC which has
doorbell support. So set the smp_85xx_ops.probe to NULL for this
case. Since the smp_85xx_ops.probe is also used in function
smp_85xx_setup_cpu() to check if we need to invoke
mpic_setup_this_cpu(), we introduce a new setup_cpu function
smp_85xx_basic_setup() to remove this dependency.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:06:03 -06:00
Zhao Qiang
0ff649ca50 powerpc/p1010rdb:update mtd of nand to adapt to both old and new p1010rdb
P1010rdb-pa and p1010rdb-pb have different mtd of nand.
So update dts to adapt to both p1010rdb-pa and p1010rdb-pb.

Move the nand-mtd from p1010rdb.dtsi to p1010rdb-pa*.dts.
Remove nand-mtd for p1010rdb-pb, whick will use mtdparts
from u-boot instead of nand-mtd in device tree.

Signed-off-by: Zhao Qiang <B45475@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:06:02 -06:00
Zhao Qiang
9667a36486 powerpc/p1010rdb:update dts to adapt to both old and new p1010rdb
P1010rdb-pa and p1010rdb-pb have different phy interrupts.
So update dts to adapt to both p1010rdb-pa and p1010rdb-pb.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Zhao Qiang <B45475@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 19:06:02 -06:00
Arnd Bergmann
b8c98ae49e tty: synclink: avoid sleep_on race
The four variants of the synclink driver use the same code in their
open() callback to wait for a port in process of being closed,
using interruptible_sleep_on, which is racy and going away soon.

Making things worse, these functions hold the BTM while doing so,
which means that if we ever enter this code path, we cannot actually
continue since the other thread that is in process of closing the
port can no longer get the BTM.

This addresses both issues by using wait_event_interruptible_tty()
instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:05:21 -08:00
Arnd Bergmann
591cee0a35 tty/amiserial: avoid interruptible_sleep_on
interruptible_sleep_on is generally problematic and we want to get
rid of it. In case of TIOCMIWAIT, that race is actually in user
space and does not get fixed since we can only detect changes after
entering the ioctl handler, but it removes one more caller.

This instance can not be trivially replaced with wait_event, so
I chose to open-code the wait loop using prepare_to_wait/finish_wait.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:05:21 -08:00
Paul Gortmaker
f8e87cb4a1 tty: delete non-required instances of include <linux/init.h>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-07 17:05:21 -08:00
Joseph Myers
01c9ccee3c powerpc: fix e500 SPE float SIGFPE generation
The e500 SPE floating-point emulation code is called from
SPEFloatingPointException and SPEFloatingPointRoundException in
arch/powerpc/kernel/traps.c.  Those functions have support for
generating SIGFPE, but do_spe_mathemu and speround_handler don't
generate a return value to indicate that this should be done.  Such a
return value should depend on whether an exception is raised that has
been set via prctl to generate SIGFPE.  This patch adds the relevant
logic in these functions so that SIGFPE is generated as expected by
the glibc testsuite.

Signed-off-by: Joseph Myers <joseph@codesourcery.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-01-07 18:43:42 -06:00