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Linux 4.13-rc5 

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Backmerge tag 'v4.13-rc5' into drm-next

Linux 4.13-rc5

There's a really nasty nouveau collision, hopefully someone can take a look
once I pushed this out.
This commit is contained in:
Dave Airlie 2017-08-15 16:16:58 +10:00
parent 09ef2378dc ef954844c7
commit 0c697fafc6
866 changed files with 14214 additions and 18249 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/admin-guide/pm/cpufreq.rst
View File

@ -237,6 +237,14 @@ are the following:
This attribute is not present if the scaling driver in use does not
support it.
``cpuinfo_cur_freq``
Current frequency of the CPUs belonging to this policy as obtained from
the hardware (in KHz).
This is expected to be the frequency the hardware actually runs at.
If that frequency cannot be determined, this attribute should not
be present.
``cpuinfo_max_freq``
Maximum possible operating frequency the CPUs belonging to this policy
can run at (in kHz).

1
Documentation/device-mapper/dm-raid.txt
View File

@ -343,3 +343,4 @@ Version History
1.11.0 Fix table line argument order
(wrong raid10_copies/raid10_format sequence)
1.11.1 Add raid4/5/6 journal write-back support via journal_mode option
1.12.1 fix for MD deadlock between mddev_suspend() and md_write_start() available

14
Documentation/devicetree/bindings/ata/sata_rcar.txt
View File

@ -1,14 +1,22 @@
* Renesas R-Car SATA
Required properties:
- compatible : should contain one of the following:
- compatible : should contain one or more of the following:
- "renesas,sata-r8a7779" for R-Car H1
("renesas,rcar-sata" is deprecated)
- "renesas,sata-r8a7790-es1" for R-Car H2 ES1
- "renesas,sata-r8a7790" for R-Car H2 other than ES1
- "renesas,sata-r8a7791" for R-Car M2-W
- "renesas,sata-r8a7793" for R-Car M2-N
- "renesas,sata-r8a7795" for R-Car H3
- "renesas,rcar-gen2-sata" for a generic R-Car Gen2 compatible device
- "renesas,rcar-gen3-sata" for a generic R-Car Gen3 compatible device
- "renesas,rcar-sata" is deprecated
When compatible with the generic version nodes
must list the SoC-specific version corresponding
to the platform first followed by the generic
version.
- reg : address and length of the SATA registers;
- interrupts : must consist of one interrupt specifier.
- clocks : must contain a reference to the functional clock.
@ -16,7 +24,7 @@ Required properties:
Example:
sata0: sata@ee300000 {
compatible = "renesas,sata-r8a7791";
compatible = "renesas,sata-r8a7791", "renesas,rcar-gen2-sata";
reg = <0 0xee300000 0 0x2000>;
interrupt-parent = <&gic>;
interrupts = <0 105 IRQ_TYPE_LEVEL_HIGH>;

2
Documentation/devicetree/bindings/crypto/inside-secure-safexcel.txt
View File

@ -8,7 +8,6 @@ Required properties:
Optional properties:
- clocks: Reference to the crypto engine clock.
- dma-mask: The address mask limitation. Defaults to 64.
Example:
@ -24,6 +23,5 @@ Example:
interrupt-names = "mem", "ring0", "ring1", "ring2", "ring3",
"eip";
clocks = <&cpm_syscon0 1 26>;
dma-mask = <0xff 0xffffffff>;
status = "disabled";
};

5
Documentation/devicetree/bindings/gpio/gpio-exar.txt Normal file
View File

@ -0,0 +1,5 @@
Exportable MPIO interface of Exar UART chips
Required properties of the device:
- exar,first-pin: first exportable pins (0..15)
- ngpios: number of exportable pins (1..16)

2
Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
View File

@ -40,7 +40,7 @@ Optional properties:
Example for a Mali-T760:
gpu@ffa30000 {
compatible = "rockchip,rk3288-mali", "arm,mali-t760", "arm,mali-midgard";
compatible = "rockchip,rk3288-mali", "arm,mali-t760";
reg = <0xffa30000 0x10000>;
interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,

1
Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
View File

@ -78,7 +78,6 @@ Example:
};
dwmmc0@12200000 {
num-slots = <1>;
cap-mmc-highspeed;
cap-sd-highspeed;
broken-cd;

1
Documentation/devicetree/bindings/mmc/img-dw-mshc.txt
View File

@ -24,6 +24,5 @@ Example:
fifo-depth = <0x20>;
bus-width = <4>;
num-slots = <1>;
disable-wp;
};

2
Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
View File

@ -36,7 +36,6 @@ Example:
/* Board portion */
dwmmc0@fcd03000 {
num-slots = <1>;
vmmc-supply = <&ldo12>;
fifo-depth = <0x100>;
pinctrl-names = "default";
@ -52,7 +51,6 @@ Example:
dwmmc_1: dwmmc1@f723e000 {
compatible = "hisilicon,hi6220-dw-mshc";
num-slots = <0x1>;
bus-width = <0x4>;
disable-wp;
cap-sd-highspeed;

16
Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
View File

@ -12,12 +12,12 @@ Required Properties:
* #address-cells: should be 1.
* #size-cells: should be 0.
# Slots: The slot specific information are contained within child-nodes with
each child-node representing a supported slot. There should be atleast one
child node representing a card slot. The name of the child node representing
the slot is recommended to be slot@n where n is the unique number of the slot
connected to the controller. The following are optional properties which
can be included in the slot child node.
# Slots (DEPRECATED): The slot specific information are contained within
child-nodes with each child-node representing a supported slot. There should
be atleast one child node representing a card slot. The name of the child node
representing the slot is recommended to be slot@n where n is the unique number
of the slot connected to the controller. The following are optional properties
which can be included in the slot child node.
* reg: specifies the physical slot number. The valid values of this
property is 0 to (num-slots -1), where num-slots is the value
@ -63,7 +63,7 @@ Optional properties:
clock(cclk_out). If it's not specified, max is 200MHZ and min is 400KHz by default.
(Use the "max-frequency" instead of "clock-freq-min-max".)
* num-slots: specifies the number of slots supported by the controller.
* num-slots (DEPRECATED): specifies the number of slots supported by the controller.
The number of physical slots actually used could be equal or less than the
value specified by num-slots. If this property is not specified, the value
of num-slot property is assumed to be 1.
@ -124,7 +124,6 @@ board specific portions as listed below.
dwmmc0@12200000 {
clock-frequency = <400000000>;
clock-freq-min-max = <400000 200000000>;
num-slots = <1>;
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
@ -139,7 +138,6 @@ board specific portions as listed below.
dwmmc0@12200000 {
clock-frequency = <400000000>;
clock-freq-min-max = <400000 200000000>;
num-slots = <1>;
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;

1
Documentation/devicetree/bindings/mmc/zx-dw-mshc.txt
View File

@ -25,7 +25,6 @@ Example:
clock-frequency = <50000000>;
clocks = <&topcrm SD0_AHB>, <&topcrm SD0_WCLK>;
clock-names = "biu", "ciu";
num-slots = <1>;
max-frequency = <50000000>;
cap-sdio-irq;
cap-sd-highspeed;

6
Documentation/fb/efifb.txt
View File

@ -27,5 +27,11 @@ You have to add the following kernel parameters in your elilo.conf:
Macbook Pro 17", iMac 20" :
video=efifb:i20
Accepted options:
nowc Don't map the framebuffer write combined. This can be used
to workaround side-effects and slowdowns on other CPU cores
when large amounts of console data are written.
--
Edgar Hucek <gimli@dark-green.com>

2
Documentation/gpio/gpio-legacy.txt
View File

@ -459,7 +459,7 @@ pin controller?
This is done by registering "ranges" of pins, which are essentially
cross-reference tables. These are described in
Documentation/pinctrl.txt
Documentation/driver-api/pinctl.rst
While the pin allocation is totally managed by the pinctrl subsystem,
gpio (under gpiolib) is still maintained by gpio drivers. It may happen

443
Documentation/media/kapi/dtv-core.rst
View File

@ -1,6 +1,31 @@
Digital TV (DVB) devices
------------------------
Digital TV devices are implemented by several different drivers:
- A bridge driver that is responsible to talk with the bus where the other
devices are connected (PCI, USB, SPI), bind to the other drivers and
implement the digital demux logic (either in software or in hardware);
- Frontend drivers that are usually implemented as two separate drivers:
- A tuner driver that implements the logic with commands the part of the
hardware with is reponsible to tune into a digital TV transponder or
physical channel. The output of a tuner is usually a baseband or
Intermediate Frequency (IF) signal;
- A demodulator driver (a.k.a "demod") that implements the logic with
commands the digital TV decoding hardware. The output of a demod is
a digital stream, with multiple audio, video and data channels typically
multiplexed using MPEG Transport Stream [#f1]_.
On most hardware, the frontend drivers talk with the bridge driver using an
I2C bus.
.. [#f1] Some standards use TCP/IP for multiplexing data, like DVB-H (an
abandoned standard, not used anymore) and ATSC version 3.0 current
proposals. Currently, the DVB subsystem doesn't implement those standards.
Digital TV Common functions
---------------------------
@ -55,8 +80,141 @@ Digital TV Frontend
The Digital TV Frontend kABI defines a driver-internal interface for
registering low-level, hardware specific driver to a hardware independent
frontend layer. It is only of interest for Digital TV device driver writers.
The header file for this API is named dvb_frontend.h and located in
drivers/media/dvb-core.
The header file for this API is named ``dvb_frontend.h`` and located in
``drivers/media/dvb-core``.
Demodulator driver
^^^^^^^^^^^^^^^^^^
The demodulator driver is responsible to talk with the decoding part of the
hardware. Such driver should implement :c:type:`dvb_frontend_ops`, with
tells what type of digital TV standards are supported, and points to a
series of functions that allow the DVB core to command the hardware via
the code under ``drivers/media/dvb-core/dvb_frontend.c``.
A typical example of such struct in a driver ``foo`` is::
static struct dvb_frontend_ops foo_ops = {
.delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A },
.info = {
.name = "foo DVB-T/T2/C driver",
.caps = FE_CAN_FEC_1_2 |
FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 |
FE_CAN_FEC_7_8 |
FE_CAN_FEC_AUTO |
FE_CAN_QPSK |
FE_CAN_QAM_16 |
FE_CAN_QAM_32 |
FE_CAN_QAM_64 |
FE_CAN_QAM_128 |
FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_HIERARCHY_AUTO |
FE_CAN_MUTE_TS |
FE_CAN_2G_MODULATION,
.frequency_min = 42000000, /* Hz */
.frequency_max = 1002000000, /* Hz */
.symbol_rate_min = 870000,
.symbol_rate_max = 11700000
},
.init = foo_init,
.sleep = foo_sleep,
.release = foo_release,
.set_frontend = foo_set_frontend,
.get_frontend = foo_get_frontend,
.read_status = foo_get_status_and_stats,
.tune = foo_tune,
.i2c_gate_ctrl = foo_i2c_gate_ctrl,
.get_frontend_algo = foo_get_algo,
};
A typical example of such struct in a driver ``bar`` meant to be used on
Satellite TV reception is::
static const struct dvb_frontend_ops bar_ops = {
.delsys = { SYS_DVBS, SYS_DVBS2 },
.info = {
.name = "Bar DVB-S/S2 demodulator",
.frequency_min = 500000, /* KHz */
.frequency_max = 2500000, /* KHz */
.frequency_stepsize = 0,
.symbol_rate_min = 1000000,
.symbol_rate_max = 45000000,
.symbol_rate_tolerance = 500,
.caps = FE_CAN_INVERSION_AUTO |
FE_CAN_FEC_AUTO |
FE_CAN_QPSK,
},
.init = bar_init,
.sleep = bar_sleep,
.release = bar_release,
.set_frontend = bar_set_frontend,
.get_frontend = bar_get_frontend,
.read_status = bar_get_status_and_stats,
.i2c_gate_ctrl = bar_i2c_gate_ctrl,
.get_frontend_algo = bar_get_algo,
.tune = bar_tune,
/* Satellite-specific */
.diseqc_send_master_cmd = bar_send_diseqc_msg,
.diseqc_send_burst = bar_send_burst,
.set_tone = bar_set_tone,
.set_voltage = bar_set_voltage,
};
.. note::
#) For satellite digital TV standards (DVB-S, DVB-S2, ISDB-S), the
frequencies are specified in kHz, while, for terrestrial and cable
standards, they're specified in Hz. Due to that, if the same frontend
supports both types, you'll need to have two separate
:c:type:`dvb_frontend_ops` structures, one for each standard.
#) The ``.i2c_gate_ctrl`` field is present only when the hardware has
allows controlling an I2C gate (either directly of via some GPIO pin),
in order to remove the tuner from the I2C bus after a channel is
tuned.
#) All new drivers should implement the
:ref:`DVBv5 statistics <dvbv5_stats>` via ``.read_status``.
Yet, there are a number of callbacks meant to get statistics for
signal strength, S/N and UCB. Those are there to provide backward
compatibility with legacy applications that don't support the DVBv5
API. Implementing those callbacks are optional. Those callbacks may be
removed in the future, after we have all existing drivers supporting
DVBv5 stats.
#) Other callbacks are required for satellite TV standards, in order to
control LNBf and DiSEqC: ``.diseqc_send_master_cmd``,
``.diseqc_send_burst``, ``.set_tone``, ``.set_voltage``.
.. |delta| unicode:: U+00394
The ``drivers/media/dvb-core/dvb_frontend.c`` has a kernel thread with is
responsible for tuning the device. It supports multiple algoritms to
detect a channel, as defined at enum :c:func:`dvbfe_algo`.
The algorithm to be used is obtained via ``.get_frontend_algo``. If the driver
doesn't fill its field at struct :c:type:`dvb_frontend_ops`, it will default to
``DVBFE_ALGO_SW``, meaning that the dvb-core will do a zigzag when tuning,
e. g. it will try first to use the specified center frequency ``f``,
then, it will do ``f`` + |delta|, ``f`` - |delta|, ``f`` + 2 x |delta|,
``f`` - 2 x |delta| and so on.
If the hardware has internally a some sort of zigzag algorithm, you should
define a ``.get_frontend_algo`` function that would return ``DVBFE_ALGO_HW``.
.. note::
The core frontend support also supports
a third type (``DVBFE_ALGO_CUSTOM``), in order to allow the driver to
define its own hardware-assisted algorithm. Very few hardware need to
use it nowadays. Using ``DVBFE_ALGO_CUSTOM`` require to provide other
function callbacks at struct :c:type:`dvb_frontend_ops`.
Attaching frontend driver to the bridge driver
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Before using the Digital TV frontend core, the bridge driver should attach
the frontend demod, tuner and SEC devices and call
@ -74,6 +232,287 @@ part of their handler for :c:type:`device_driver`.\ ``resume()``.
A few other optional functions are provided to handle some special cases.
.. _dvbv5_stats:
Digital TV Frontend statistics
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Introduction
^^^^^^^^^^^^
Digital TV frontends provide a range of
:ref:`statistics <frontend-stat-properties>` meant to help tuning the device
and measuring the quality of service.
For each statistics measurement, the driver should set the type of scale used,
or ``FE_SCALE_NOT_AVAILABLE`` if the statistics is not available on a given
time. Drivers should also provide the number of statistics for each type.
that's usually 1 for most video standards [#f2]_.
Drivers should initialize each statistic counters with length and
scale at its init code. For example, if the frontend provides signal
strength, it should have, on its init code::
struct dtv_frontend_properties *c = &state->fe.dtv_property_cache;
c->strength.len = 1;
c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
And, when the statistics got updated, set the scale::
c->strength.stat[0].scale = FE_SCALE_DECIBEL;
c->strength.stat[0].uvalue = strength;
.. [#f2] For ISDB-T, it may provide both a global statistics and a per-layer
set of statistics. On such cases, len should be equal to 4. The first
value corresponds to the global stat; the other ones to each layer, e. g.:
- c->cnr.stat[0] for global S/N carrier ratio,
- c->cnr.stat[1] for Layer A S/N carrier ratio,
- c->cnr.stat[2] for layer B S/N carrier ratio,
- c->cnr.stat[3] for layer C S/N carrier ratio.
.. note:: Please prefer to use ``FE_SCALE_DECIBEL`` instead of
``FE_SCALE_RELATIVE`` for signal strength and CNR measurements.
Groups of statistics
^^^^^^^^^^^^^^^^^^^^
There are several groups of statistics currently supported:
Signal strength (:ref:`DTV-STAT-SIGNAL-STRENGTH`)
- Measures the signal strength level at the analog part of the tuner or
demod.
- Typically obtained from the gain applied to the tuner and/or frontend
in order to detect the carrier. When no carrier is detected, the gain is
at the maximum value (so, strength is on its minimal).
- As the gain is visible through the set of registers that adjust the gain,
typically, this statistics is always available [#f3]_.
- Drivers should try to make it available all the times, as this statistics
can be used when adjusting an antenna position and to check for troubles
at the cabling.
.. [#f3] On a few devices, the gain keeps floating if no carrier.
On such devices, strength report should check first if carrier is
detected at the tuner (``FE_HAS_CARRIER``, see :c:type:`fe_status`),
and otherwise return the lowest possible value.
Carrier Signal to Noise ratio (:ref:`DTV-STAT-CNR`)
- Signal to Noise ratio for the main carrier.
- Signal to Noise measurement depends on the device. On some hardware, is
available when the main carrier is detected. On those hardware, CNR
measurement usually comes from the tuner (e. g. after ``FE_HAS_CARRIER``,
see :c:type:`fe_status`).
On other devices, it requires inner FEC decoding,
as the frontend measures it indirectly from other parameters (e. g. after
``FE_HAS_VITERBI``, see :c:type:`fe_status`).
Having it available after inner FEC is more common.
Bit counts post-FEC (:ref:`DTV-STAT-POST-ERROR-BIT-COUNT` and :ref:`DTV-STAT-POST-TOTAL-BIT-COUNT`)
- Those counters measure the number of bits and bit errors errors after
the forward error correction (FEC) on the inner coding block
(after Viterbi, LDPC or other inner code).
- Due to its nature, those statistics depend on full coding lock
(e. g. after ``FE_HAS_SYNC`` or after ``FE_HAS_LOCK``,
see :c:type:`fe_status`).
Bit counts pre-FEC (:ref:`DTV-STAT-PRE-ERROR-BIT-COUNT` and :ref:`DTV-STAT-PRE-TOTAL-BIT-COUNT`)
- Those counters measure the number of bits and bit errors errors before
the forward error correction (FEC) on the inner coding block
(before Viterbi, LDPC or other inner code).
- Not all frontends provide this kind of statistics.
- Due to its nature, those statistics depend on inner coding lock (e. g.
after ``FE_HAS_VITERBI``, see :c:type:`fe_status`).
Block counts (:ref:`DTV-STAT-ERROR-BLOCK-COUNT` and :ref:`DTV-STAT-TOTAL-BLOCK-COUNT`)
- Those counters measure the number of blocks and block errors errors after
the forward error correction (FEC) on the inner coding block
(before Viterbi, LDPC or other inner code).
- Due to its nature, those statistics depend on full coding lock
(e. g. after ``FE_HAS_SYNC`` or after
``FE_HAS_LOCK``, see :c:type:`fe_status`).
.. note:: All counters should be monotonically increased as they're
collected from the hardware.
A typical example of the logic that handle status and statistics is::
static int foo_get_status_and_stats(struct dvb_frontend *fe)
{
struct foo_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int rc;
enum fe_status *status;
/* Both status and strength are always available */
rc = foo_read_status(fe, &status);
if (rc < 0)
return rc;
rc = foo_read_strength(fe);
if (rc < 0)
return rc;
/* Check if CNR is available */
if (!(fe->status & FE_HAS_CARRIER))
return 0;
rc = foo_read_cnr(fe);
if (rc < 0)
return rc;
/* Check if pre-BER stats are available */
if (!(fe->status & FE_HAS_VITERBI))
return 0;
rc = foo_get_pre_ber(fe);
if (rc < 0)
return rc;
/* Check if post-BER stats are available */
if (!(fe->status & FE_HAS_SYNC))
return 0;
rc = foo_get_post_ber(fe);
if (rc < 0)
return rc;
}
static const struct dvb_frontend_ops ops = {
/* ... */
.read_status = foo_get_status_and_stats,
};
Statistics collect
^^^^^^^^^^^^^^^^^^
On almost all frontend hardware, the bit and byte counts are stored by
the hardware after a certain amount of time or after the total bit/block
counter reaches a certain value (usually programable), for example, on
every 1000 ms or after receiving 1,000,000 bits.
So, if you read the registers too soon, you'll end by reading the same
value as in the previous reading, causing the monotonic value to be
incremented too often.
Drivers should take the responsibility to avoid too often reads. That
can be done using two approaches:
if the driver have a bit that indicates when a collected data is ready
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Driver should check such bit before making the statistics available.
An example of such behavior can be found at this code snippet (adapted
from mb86a20s driver's logic)::
static int foo_get_pre_ber(struct dvb_frontend *fe)
{
struct foo_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int rc, bit_error;
/* Check if the BER measures are already available */
rc = foo_read_u8(state, 0x54);
if (rc < 0)
return rc;
if (!rc)
return 0;
/* Read Bit Error Count */
bit_error = foo_read_u32(state, 0x55);
if (bit_error < 0)
return bit_error;
/* Read Total Bit Count */
rc = foo_read_u32(state, 0x51);
if (rc < 0)
return rc;
c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
c->pre_bit_error.stat[0].uvalue += bit_error;
c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
c->pre_bit_count.stat[0].uvalue += rc;
return 0;
}
If the driver doesn't provide a statistics available check bit
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
A few devices, however, may not provide a way to check if the stats are
available (or the way to check it is unknown). They may not even provide
a way to directly read the total number of bits or blocks.
On those devices, the driver need to ensure that it won't be reading from
the register too often and/or estimate the total number of bits/blocks.
On such drivers, a typical routine to get statistics would be like
(adapted from dib8000 driver's logic)::
struct foo_state {
/* ... */
unsigned long per_jiffies_stats;
}
static int foo_get_pre_ber(struct dvb_frontend *fe)
{
struct foo_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int rc, bit_error;
u64 bits;
/* Check if time for stats was elapsed */
if (!time_after(jiffies, state->per_jiffies_stats))
return 0;
/* Next stat should be collected in 1000 ms */
state->per_jiffies_stats = jiffies + msecs_to_jiffies(1000);
/* Read Bit Error Count */
bit_error = foo_read_u32(state, 0x55);
if (bit_error < 0)
return bit_error;
/*
* On this particular frontend, there's no register that
* would provide the number of bits per 1000ms sample. So,
* some function would calculate it based on DTV properties
*/
bits = get_number_of_bits_per_1000ms(fe);
c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
c->pre_bit_error.stat[0].uvalue += bit_error;
c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
c->pre_bit_count.stat[0].uvalue += bits;
return 0;
}
Please notice that, on both cases, we're getting the statistics using the
:c:type:`dvb_frontend_ops` ``.read_status`` callback. The rationale is that
the frontend core will automatically call this function periodically
(usually, 3 times per second, when the frontend is locked).
That warrants that we won't miss to collect a counter and increment the
monotonic stats at the right time.
Digital TV Frontend functions and types
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. kernel-doc:: drivers/media/dvb-core/dvb_frontend.h

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6
Documentation/media/uapi/v4l/vidioc-g-fmt.rst
View File

@ -147,3 +147,9 @@ appropriately. The generic error codes are described at the
EINVAL
The struct :c:type:`v4l2_format` ``type`` field is
invalid or the requested buffer type not supported.
EBUSY
The device is busy and cannot change the format. This could be
because or the device is streaming or buffers are allocated or
queued to the driver. Relevant for :ref:`VIDIOC_S_FMT
<VIDIOC_G_FMT>` only.

7
Documentation/media/v4l-drivers/imx.rst
View File

@ -607,8 +607,9 @@ References
Authors
-------
Steve Longerbeam <steve_longerbeam@mentor.com>
Philipp Zabel <kernel@pengutronix.de>
Russell King <linux@armlinux.org.uk>
- Steve Longerbeam <steve_longerbeam@mentor.com>
- Philipp Zabel <kernel@pengutronix.de>
- Russell King <linux@armlinux.org.uk>
Copyright (C) 2012-2017 Mentor Graphics Inc.

1
Documentation/media/v4l-drivers/index.rst
View File

@ -41,6 +41,7 @@ For more details see the file COPYING in the source distribution of Linux.
cx88
davinci-vpbe
fimc
imx
ivtv
max2175
meye

3
Documentation/power/runtime_pm.txt
View File

@ -435,7 +435,8 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h:
PM status to 'suspended' and update its parent's counter of 'active'
children as appropriate (it is only valid to use this function if
'power.runtime_error' is set or 'power.disable_depth' is greater than
zero)
zero); it will fail and return an error code if the device has a child
which is active and the 'power.ignore_children' flag is unset
bool pm_runtime_active(struct device *dev);
- return true if the device's runtime PM status is 'active' or its

27
MAINTAINERS
View File

@ -1161,7 +1161,7 @@ M: Brendan Higgins <brendanhiggins@google.com>
R: Benjamin Herrenschmidt <benh@kernel.crashing.org>
R: Joel Stanley <joel@jms.id.au>
L: linux-i2c@vger.kernel.org
L: openbmc@lists.ozlabs.org
L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
S: Maintained
F: drivers/irqchip/irq-aspeed-i2c-ic.c
F: drivers/i2c/busses/i2c-aspeed.c
@ -5096,12 +5096,20 @@ M: Andrew Lunn <andrew@lunn.ch>
M: Florian Fainelli <f.fainelli@gmail.com>
L: netdev@vger.kernel.org
S: Maintained
F: include/linux/phy.h
F: include/linux/phy_fixed.h
F: drivers/net/phy/
F: Documentation/ABI/testing/sysfs-bus-mdio
F: Documentation/devicetree/bindings/net/mdio*
F: Documentation/networking/phy.txt
F: drivers/net/phy/
F: drivers/of/of_mdio.c
F: drivers/of/of_net.c
F: include/linux/*mdio*.h
F: include/linux/of_net.h
F: include/linux/phy.h
F: include/linux/phy_fixed.h
F: include/linux/platform_data/mdio-gpio.h
F: include/trace/events/mdio.h
F: include/uapi/linux/mdio.h
F: include/uapi/linux/mii.h
EXT2 FILE SYSTEM
M: Jan Kara <jack@suse.com>
@ -5832,7 +5840,7 @@ F: drivers/staging/greybus/spi.c
F: drivers/staging/greybus/spilib.c
F: drivers/staging/greybus/spilib.h
GREYBUS LOOBACK/TIME PROTOCOLS DRIVERS
GREYBUS LOOPBACK/TIME PROTOCOLS DRIVERS
M: Bryan O'Donoghue <pure.logic@nexus-software.ie>
S: Maintained
F: drivers/staging/greybus/loopback.c
@ -10381,7 +10389,7 @@ L: linux-gpio@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git
S: Maintained
F: Documentation/devicetree/bindings/pinctrl/
F: Documentation/pinctrl.txt
F: Documentation/driver-api/pinctl.rst
F: drivers/pinctrl/
F: include/linux/pinctrl/
@ -14002,6 +14010,7 @@ F: drivers/block/virtio_blk.c
F: include/linux/virtio*.h
F: include/uapi/linux/virtio_*.h
F: drivers/crypto/virtio/
F: mm/balloon_compaction.c
VIRTIO CRYPTO DRIVER
M: Gonglei <arei.gonglei@huawei.com>
@ -14216,6 +14225,12 @@ F: drivers/watchdog/
F: include/linux/watchdog.h
F: include/uapi/linux/watchdog.h
WHISKEYCOVE PMIC GPIO DRIVER
M: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/gpio/gpio-wcove.c
WIIMOTE HID DRIVER
M: David Herrmann <dh.herrmann@googlemail.com>
L: linux-input@vger.kernel.org

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 13
SUBLEVEL = 0
EXTRAVERSION = -rc2
EXTRAVERSION = -rc5
NAME = Fearless Coyote
# *DOCUMENTATION*

2
arch/arc/mm/dma.c
View File

@ -117,7 +117,7 @@ static int arc_dma_mmap(struct device *dev, struct vm_area_struct *vma,
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (off < count && user_count <= (count - off)) {

2
arch/arm/Kconfig
View File

@ -380,7 +380,7 @@ config ARCH_EP93XX
bool "EP93xx-based"
select ARCH_HAS_HOLES_MEMORYMODEL
select ARM_AMBA
select ARM_PATCH_PHYS_VIRT
imply ARM_PATCH_PHYS_VIRT
select ARM_VIC
select AUTO_ZRELADDR
select CLKDEV_LOOKUP

4
arch/arm/boot/dts/armada-388-gp.dts
View File

@ -75,7 +75,7 @@ expander0: pca9555@20 {
pinctrl-names = "default";
pinctrl-0 = <&pca0_pins>;
interrupt-parent = <&gpio0>;
interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
@ -87,7 +87,7 @@ expander1: pca9555@21 {
compatible = "nxp,pca9555";
pinctrl-names = "default";
interrupt-parent = <&gpio0>;
interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;

21
arch/arm/boot/dts/da850-evm.dts
View File

@ -301,25 +301,4 @@ &vpif {
pinctrl-names = "default";
pinctrl-0 = <&vpif_capture_pins>, <&vpif_display_pins>;
status = "okay";
/* VPIF capture port */
port@0 {
vpif_input_ch0: endpoint@0 {
reg = <0>;
bus-width = <8>;
};
vpif_input_ch1: endpoint@1 {
reg = <1>;
bus-width = <8>;
data-shift = <8>;
};
};
/* VPIF display port */
port@1 {
vpif_output_ch0: endpoint {
bus-width = <8>;
};
};
};

7
arch/arm/boot/dts/da850-lcdk.dts
View File

@ -318,11 +318,4 @@ &vpif {
pinctrl-names = "default";
pinctrl-0 = <&vpif_capture_pins>;
status = "okay";
/* VPIF capture port */
port {
vpif_ch0: endpoint {
bus-width = <8>;
};
};
};

34
arch/arm/boot/dts/dm8168-evm.dts
View File

@ -68,6 +68,34 @@ usb1_pins: pinmux_usb1_pins {
DM816X_IOPAD(0x0d08, MUX_MODE0) /* USB1_DRVVBUS */
>;
};
nandflash_pins: nandflash_pins {
pinctrl-single,pins = <
DM816X_IOPAD(0x0b38, PULL_UP | MUX_MODE0) /* PINCTRL207 GPMC_CS0*/
DM816X_IOPAD(0x0b60, PULL_ENA | MUX_MODE0) /* PINCTRL217 GPMC_ADV_ALE */
DM816X_IOPAD(0x0b54, PULL_UP | PULL_ENA | MUX_MODE0) /* PINCTRL214 GPMC_OE_RE */
DM816X_IOPAD(0x0b58, PULL_ENA | MUX_MODE0) /* PINCTRL215 GPMC_BE0_CLE */
DM816X_IOPAD(0x0b50, PULL_UP | MUX_MODE0) /* PINCTRL213 GPMC_WE */
DM816X_IOPAD(0x0b6c, MUX_MODE0) /* PINCTRL220 GPMC_WAIT */
DM816X_IOPAD(0x0be4, PULL_ENA | MUX_MODE0) /* PINCTRL250 GPMC_CLK */
DM816X_IOPAD(0x0ba4, MUX_MODE0) /* PINCTRL234 GPMC_D0 */
DM816X_IOPAD(0x0ba8, MUX_MODE0) /* PINCTRL234 GPMC_D1 */
DM816X_IOPAD(0x0bac, MUX_MODE0) /* PINCTRL234 GPMC_D2 */
DM816X_IOPAD(0x0bb0, MUX_MODE0) /* PINCTRL234 GPMC_D3 */
DM816X_IOPAD(0x0bb4, MUX_MODE0) /* PINCTRL234 GPMC_D4 */
DM816X_IOPAD(0x0bb8, MUX_MODE0) /* PINCTRL234 GPMC_D5 */
DM816X_IOPAD(0x0bbc, MUX_MODE0) /* PINCTRL234 GPMC_D6 */
DM816X_IOPAD(0x0bc0, MUX_MODE0) /* PINCTRL234 GPMC_D7 */
DM816X_IOPAD(0x0bc4, MUX_MODE0) /* PINCTRL234 GPMC_D8 */
DM816X_IOPAD(0x0bc8, MUX_MODE0) /* PINCTRL234 GPMC_D9 */
DM816X_IOPAD(0x0bcc, MUX_MODE0) /* PINCTRL234 GPMC_D10 */
DM816X_IOPAD(0x0bd0, MUX_MODE0) /* PINCTRL234 GPMC_D11 */
DM816X_IOPAD(0x0bd4, MUX_MODE0) /* PINCTRL234 GPMC_D12 */
DM816X_IOPAD(0x0bd8, MUX_MODE0) /* PINCTRL234 GPMC_D13 */
DM816X_IOPAD(0x0bdc, MUX_MODE0) /* PINCTRL234 GPMC_D14 */
DM816X_IOPAD(0x0be0, MUX_MODE0) /* PINCTRL234 GPMC_D15 */
>;
};
};
&i2c1 {
@ -90,6 +118,8 @@ extgpio1: pcf8575@20 {
&gpmc {
ranges = <0 0 0x04000000 0x01000000>; /* CS0: 16MB for NAND */
pinctrl-names = "default";
pinctrl-0 = <&nandflash_pins>;
nand@0,0 {
compatible = "ti,omap2-nand";
@ -98,9 +128,11 @@ nand@0,0 {
interrupt-parent = <&gpmc>;
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
#address-cells = <1>;
#size-cells = <1>;
ti,nand-ecc-opt = "bch8";
ti,elm-id = <&elm>;
nand-bus-width = <16>;
gpmc,device-width = <2>;
gpmc,sync-clk-ps = <0>;
@ -164,7 +196,7 @@ &mmc1 {
vmmc-supply = <&vmmcsd_fixed>;
bus-width = <4>;
cd-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
wp-gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
wp-gpios = <&gpio2 8 GPIO_ACTIVE_HIGH>;
};
/* At least dm8168-evm rev c won't support multipoint, later may */

2
arch/arm/boot/dts/dm816x.dtsi
View File

@ -145,7 +145,7 @@ edma: edma@49000000 {
};
elm: elm@48080000 {
compatible = "ti,816-elm";
compatible = "ti,am3352-elm";
ti,hwmods = "elm";
reg = <0x48080000 0x2000>;
interrupts = <4>;

4
arch/arm/boot/dts/dra71-evm.dts
View File

@ -190,7 +190,7 @@ dp83867_0: ethernet-phy@2 {
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
ti,impedance-control = <0x1f>;
ti,min-output-impedance;
};
dp83867_1: ethernet-phy@3 {
@ -198,7 +198,7 @@ dp83867_1: ethernet-phy@3 {
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>;
ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
ti,impedance-control = <0x1f>;
ti,min-output-impedance;
};
};

3
arch/arm/boot/dts/exynos4.dtsi
View File

@ -59,6 +59,9 @@ clock_audss: clock-controller@03810000 {
compatible = "samsung,exynos4210-audss-clock";
reg = <0x03810000 0x0C>;
#clock-cells = <1>;
clocks = <&clock CLK_FIN_PLL>, <&clock CLK_FOUT_EPLL>,
<&clock CLK_SCLK_AUDIO0>, <&clock CLK_SCLK_AUDIO0>;
clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in";
};
i2s0: i2s@03830000 {

4
arch/arm/boot/dts/rk3288.dtsi
View File

@ -1126,8 +1126,8 @@ hdmi_in_vopl: endpoint@1 {
};
};
gpu: mali@ffa30000 {
compatible = "rockchip,rk3288-mali", "arm,mali-t760", "arm,mali-midgard";
gpu: gpu@ffa30000 {
compatible = "rockchip,rk3288-mali", "arm,mali-t760";
reg = <0xffa30000 0x10000>;
interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,

16
arch/arm/boot/dts/sun8i-a83t.dtsi
View File

@ -44,7 +44,9 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/sun8i-a83t-ccu.h>
#include <dt-bindings/clock/sun8i-r-ccu.h>
#include <dt-bindings/reset/sun8i-a83t-ccu.h>
/ {
interrupt-parent = <&gic>;
@ -175,8 +177,8 @@ dma: dma-controller@1c02000 {
compatible = "allwinner,sun8i-a83t-dma";
reg = <0x01c02000 0x1000>;
interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu 21>;
resets = <&ccu 7>;
clocks = <&ccu CLK_BUS_DMA>;
resets = <&ccu RST_BUS_DMA>;
#dma-cells = <1>;
};
@ -195,7 +197,7 @@ pio: pinctrl@1c20800 {
<GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
reg = <0x01c20800 0x400>;
clocks = <&ccu 45>, <&osc24M>, <&osc16Md512>;
clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc16Md512>;
clock-names = "apb", "hosc", "losc";
gpio-controller;
interrupt-controller;
@ -247,8 +249,8 @@ spdif: spdif@1c21000 {
"allwinner,sun8i-h3-spdif";
reg = <0x01c21000 0x400>;
interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu 44>, <&ccu 76>;
resets = <&ccu 32>;
clocks = <&ccu CLK_BUS_SPDIF>, <&ccu CLK_SPDIF>;
resets = <&ccu RST_BUS_SPDIF>;
clock-names = "apb", "spdif";
dmas = <&dma 2>;
dma-names = "tx";
@ -263,8 +265,8 @@ uart0: serial@01c28000 {
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&ccu 53>;
resets = <&ccu 40>;
clocks = <&ccu CLK_BUS_UART0>;
resets = <&ccu RST_BUS_UART0>;
status = "disabled";
};

2
arch/arm/boot/dts/sunxi-h3-h5.dtsi
View File

@ -394,7 +394,7 @@ timer@01c20c00 {
emac: ethernet@1c30000 {
compatible = "allwinner,sun8i-h3-emac";
syscon = <&syscon>;
reg = <0x01c30000 0x104>;
reg = <0x01c30000 0x10000>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "macirq";
resets = <&ccu RST_BUS_EMAC>;

2
arch/arm/boot/dts/tango4-vantage-1172.dts
View File

@ -22,7 +22,7 @@ chosen {
};
&eth0 {
phy-connection-type = "rgmii";
phy-connection-type = "rgmii-id";
phy-handle = <&eth0_phy>;
#address-cells = <1>;
#size-cells = <0>;

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

@ -19,6 +19,11 @@
#ifndef __ASSEMBLY__
#define ARCH_HAS_KIMAGE_ARCH
struct kimage_arch {
u32 kernel_r2;
};
/**
* crash_setup_regs() - save registers for the panic kernel
* @newregs: registers are saved here

11
arch/arm/include/asm/tlb.h
View File

@ -148,7 +148,8 @@ static inline void tlb_flush_mmu(struct mmu_gather *tlb)
}
static inline void
tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->fullmm = !(start | (end+1));
@ -166,8 +167,14 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
}
static inline void
tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
arch_tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end, bool force)
{
if (force) {
tlb->range_start = start;
tlb->range_end = end;
}
tlb_flush_mmu(tlb);
/* keep the page table cache within bounds */

6
arch/arm/include/asm/ucontext.h
View File

@ -35,6 +35,12 @@ struct ucontext {
* bytes, to prevent unpredictable padding in the signal frame.
*/
/*
* Dummy padding block: if this magic is encountered, the block should
* be skipped using the corresponding size field.
*/
#define DUMMY_MAGIC 0xb0d9ed01
#ifdef CONFIG_CRUNCH
#define CRUNCH_MAGIC 0x5065cf03
#define CRUNCH_STORAGE_SIZE (CRUNCH_SIZE + 8)

11
arch/arm/kernel/machine_kexec.c
View File

@ -30,7 +30,6 @@ extern unsigned long kexec_boot_atags;
static atomic_t waiting_for_crash_ipi;
static unsigned long dt_mem;
/*
* Provide a dummy crash_notes definition while crash dump arrives to arm.
* This prevents breakage of crash_notes attribute in kernel/ksysfs.c.
@ -42,6 +41,9 @@ int machine_kexec_prepare(struct kimage *image)
__be32 header;
int i, err;
image->arch.kernel_r2 = image->start - KEXEC_ARM_ZIMAGE_OFFSET
+ KEXEC_ARM_ATAGS_OFFSET;
/*
* Validate that if the current HW supports SMP, then the SW supports
* and implements CPU hotplug for the current HW. If not, we won't be
@ -66,8 +68,8 @@ int machine_kexec_prepare(struct kimage *image)
if (err)
return err;
if (be32_to_cpu(header) == OF_DT_HEADER)
dt_mem = current_segment->mem;
if (header == cpu_to_be32(OF_DT_HEADER))
image->arch.kernel_r2 = current_segment->mem;
}
return 0;
}
@ -165,8 +167,7 @@ void machine_kexec(struct kimage *image)
kexec_start_address = image->start;
kexec_indirection_page = page_list;
kexec_mach_type = machine_arch_type;
kexec_boot_atags = dt_mem ?: image->start - KEXEC_ARM_ZIMAGE_OFFSET
+ KEXEC_ARM_ATAGS_OFFSET;
kexec_boot_atags = image->arch.kernel_r2;
/* copy our kernel relocation code to the control code page */
reboot_entry = fncpy(reboot_code_buffer,

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

@ -987,6 +987,9 @@ static void __init reserve_crashkernel(void)
if (crash_base <= 0) {
unsigned long long crash_max = idmap_to_phys((u32)~0);
unsigned long long lowmem_max = __pa(high_memory - 1) + 1;
if (crash_max > lowmem_max)
crash_max = lowmem_max;
crash_base = memblock_find_in_range(CRASH_ALIGN, crash_max,
crash_size, CRASH_ALIGN);
if (!crash_base) {

70
arch/arm/kernel/signal.c
View File

@ -40,8 +40,10 @@ static int preserve_crunch_context(struct crunch_sigframe __user *frame)
return __copy_to_user(frame, kframe, sizeof(*frame));
}
static int restore_crunch_context(struct crunch_sigframe __user *frame)
static int restore_crunch_context(char __user **auxp)
{
struct crunch_sigframe __user *frame =
(struct crunch_sigframe __user *)*auxp;
char kbuf[sizeof(*frame) + 8];
struct crunch_sigframe *kframe;
@ -52,6 +54,7 @@ static int restore_crunch_context(struct crunch_sigframe __user *frame)
if (kframe->magic != CRUNCH_MAGIC ||
kframe->size != CRUNCH_STORAGE_SIZE)
return -1;
*auxp += CRUNCH_STORAGE_SIZE;
crunch_task_restore(current_thread_info(), &kframe->storage);
return 0;
}
@ -59,21 +62,39 @@ static int restore_crunch_context(struct crunch_sigframe __user *frame)
#ifdef CONFIG_IWMMXT
static int preserve_iwmmxt_context(struct iwmmxt_sigframe *frame)
static int preserve_iwmmxt_context(struct iwmmxt_sigframe __user *frame)
{
char kbuf[sizeof(*frame) + 8];
struct iwmmxt_sigframe *kframe;
int err = 0;
/* the iWMMXt context must be 64 bit aligned */
kframe = (struct iwmmxt_sigframe *)((unsigned long)(kbuf + 8) & ~7);
if (test_thread_flag(TIF_USING_IWMMXT)) {
kframe->magic = IWMMXT_MAGIC;
kframe->size = IWMMXT_STORAGE_SIZE;
iwmmxt_task_copy(current_thread_info(), &kframe->storage);
return __copy_to_user(frame, kframe, sizeof(*frame));
err = __copy_to_user(frame, kframe, sizeof(*frame));
} else {
/*
* For bug-compatibility with older kernels, some space
* has to be reserved for iWMMXt even if it's not used.
* Set the magic and size appropriately so that properly
* written userspace can skip it reliably:
*/
__put_user_error(DUMMY_MAGIC, &frame->magic, err);
__put_user_error(IWMMXT_STORAGE_SIZE, &frame->size, err);
}
return err;
}
static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
static int restore_iwmmxt_context(char __user **auxp)
{
struct iwmmxt_sigframe __user *frame =
(struct iwmmxt_sigframe __user *)*auxp;
char kbuf[sizeof(*frame) + 8];
struct iwmmxt_sigframe *kframe;
@ -81,10 +102,28 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
kframe = (struct iwmmxt_sigframe *)((unsigned long)(kbuf + 8) & ~7);
if (__copy_from_user(kframe, frame, sizeof(*frame)))
return -1;
if (kframe->magic != IWMMXT_MAGIC ||
kframe->size != IWMMXT_STORAGE_SIZE)
/*
* For non-iWMMXt threads: a single iwmmxt_sigframe-sized dummy
* block is discarded for compatibility with setup_sigframe() if
* present, but we don't mandate its presence. If some other
* magic is here, it's not for us:
*/
if (!test_thread_flag(TIF_USING_IWMMXT) &&
kframe->magic != DUMMY_MAGIC)
return 0;
if (kframe->size != IWMMXT_STORAGE_SIZE)
return -1;
if (test_thread_flag(TIF_USING_IWMMXT)) {
if (kframe->magic != IWMMXT_MAGIC)
return -1;
iwmmxt_task_restore(current_thread_info(), &kframe->storage);
}
*auxp += IWMMXT_STORAGE_SIZE;
return 0;
}
@ -107,8 +146,10 @@ static int preserve_vfp_context(struct vfp_sigframe __user *frame)
return vfp_preserve_user_clear_hwstate(&frame->ufp, &frame->ufp_exc);
}
static int restore_vfp_context(struct vfp_sigframe __user *frame)
static int restore_vfp_context(char __user **auxp)
{
struct vfp_sigframe __user *frame =
(struct vfp_sigframe __user *)*auxp;
unsigned long magic;
unsigned long size;
int err = 0;
@ -121,6 +162,7 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
return -EINVAL;
*auxp += size;
return vfp_restore_user_hwstate(&frame->ufp, &frame->ufp_exc);
}
@ -141,7 +183,7 @@ struct rt_sigframe {
static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
{
struct aux_sigframe __user *aux;
char __user *aux;
sigset_t set;
int err;
@ -169,18 +211,18 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
err |= !valid_user_regs(regs);
aux = (struct aux_sigframe __user *) sf->uc.uc_regspace;
aux = (char __user *) sf->uc.uc_regspace;
#ifdef CONFIG_CRUNCH
if (err == 0)
err |= restore_crunch_context(&aux->crunch);
err |= restore_crunch_context(&aux);
#endif
#ifdef CONFIG_IWMMXT
if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
err |= restore_iwmmxt_context(&aux->iwmmxt);
if (err == 0)
err |= restore_iwmmxt_context(&aux);
#endif
#ifdef CONFIG_VFP
if (err == 0)
err |= restore_vfp_context(&aux->vfp);
err |= restore_vfp_context(&aux);
#endif
return err;
@ -286,7 +328,7 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
err |= preserve_crunch_context(&aux->crunch);
#endif
#ifdef CONFIG_IWMMXT
if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
if (err == 0)
err |= preserve_iwmmxt_context(&aux->iwmmxt);
#endif
#ifdef CONFIG_VFP

4
arch/arm/mach-davinci/board-da850-evm.c
View File

@ -1166,7 +1166,7 @@ static struct tvp514x_platform_data tvp5146_pdata = {
#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
static const struct vpif_input da850_ch0_inputs[] = {
static struct vpif_input da850_ch0_inputs[] = {
{
.input = {
.index = 0,
@ -1181,7 +1181,7 @@ static const struct vpif_input da850_ch0_inputs[] = {
},
};
static const struct vpif_input da850_ch1_inputs[] = {
static struct vpif_input da850_ch1_inputs[] = {
{
.input = {
.index = 0,

9
arch/arm/mach-davinci/clock.c
View File

@ -218,6 +218,15 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
}
EXPORT_SYMBOL(clk_set_parent);
struct clk *clk_get_parent(struct clk *clk)
{
if (!clk)
return NULL;
return clk->parent;
}
EXPORT_SYMBOL(clk_get_parent);
int clk_register(struct clk *clk)
{
if (clk == NULL || IS_ERR(clk))

20
arch/arm/mach-ep93xx/clock.c
View File

@ -475,6 +475,26 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
}
EXPORT_SYMBOL(clk_set_rate);
long clk_round_rate(struct clk *clk, unsigned long rate)
{
WARN_ON(clk);
return 0;
}
EXPORT_SYMBOL(clk_round_rate);
int clk_set_parent(struct clk *clk, struct clk *parent)
{
WARN_ON(clk);
return 0;
}
EXPORT_SYMBOL(clk_set_parent);
struct clk *clk_get_parent(struct clk *clk)
{
return clk->parent;
}
EXPORT_SYMBOL(clk_get_parent);
static char fclk_divisors[] = { 1, 2, 4, 8, 16, 1, 1, 1 };
static char hclk_divisors[] = { 1, 2, 4, 5, 6, 8, 16, 32 };

34
arch/arm/mach-ixp4xx/include/mach/io.h
View File

@ -95,8 +95,10 @@ static inline void __indirect_writeb(u8 value, volatile void __iomem *p)
}
static inline void __indirect_writesb(volatile void __iomem *bus_addr,
const u8 *vaddr, int count)
const void *p, int count)
{
const u8 *vaddr = p;
while (count--)
writeb(*vaddr++, bus_addr);
}
@ -118,8 +120,10 @@ static inline void __indirect_writew(u16 value, volatile void __iomem *p)
}
static inline void __indirect_writesw(volatile void __iomem *bus_addr,
const u16 *vaddr, int count)
const void *p, int count)
{
const u16 *vaddr = p;
while (count--)
writew(*vaddr++, bus_addr);
}
@ -137,8 +141,9 @@ static inline void __indirect_writel(u32 value, volatile void __iomem *p)
}
static inline void __indirect_writesl(volatile void __iomem *bus_addr,
const u32 *vaddr, int count)
const void *p, int count)
{
const u32 *vaddr = p;
while (count--)
writel(*vaddr++, bus_addr);
}
@ -160,8 +165,10 @@ static inline u8 __indirect_readb(const volatile void __iomem *p)
}
static inline void __indirect_readsb(const volatile void __iomem *bus_addr,
u8 *vaddr, u32 count)
void *p, u32 count)
{
u8 *vaddr = p;
while (count--)
*vaddr++ = readb(bus_addr);
}
@ -183,8 +190,10 @@ static inline u16 __indirect_readw(const volatile void __iomem *p)
}
static inline void __indirect_readsw(const volatile void __iomem *bus_addr,
u16 *vaddr, u32 count)
void *p, u32 count)
{
u16 *vaddr = p;
while (count--)
*vaddr++ = readw(bus_addr);
}
@ -204,8 +213,10 @@ static inline u32 __indirect_readl(const volatile void __iomem *p)
}
static inline void __indirect_readsl(const volatile void __iomem *bus_addr,
u32 *vaddr, u32 count)
void *p, u32 count)
{
u32 *vaddr = p;
while (count--)
*vaddr++ = readl(bus_addr);
}
@ -523,8 +534,15 @@ static inline void iowrite32_rep(void __iomem *addr, const void *vaddr,
#endif
}
#define ioport_map(port, nr) ((void __iomem*)(port + PIO_OFFSET))
#define ioport_unmap(addr)
#define ioport_map(port, nr) ioport_map(port, nr)
static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
return ((void __iomem*)((port) + PIO_OFFSET));
}
#define ioport_unmap(addr) ioport_unmap(addr)
static inline void ioport_unmap(void __iomem *addr)
{
}
#endif /* CONFIG_PCI */
#endif /* __ASM_ARM_ARCH_IO_H */

2
arch/arm/mach-mmp/devices.c
View File

@ -238,7 +238,7 @@ void pxa_usb_phy_deinit(void __iomem *phy_reg)
#endif
#if IS_ENABLED(CONFIG_USB_SUPPORT)
static u64 usb_dma_mask = ~(u32)0;
static u64 __maybe_unused usb_dma_mask = ~(u32)0;
#if IS_ENABLED(CONFIG_USB_MV_UDC)
struct resource pxa168_u2o_resources[] = {

2
arch/arm/mach-mvebu/platsmp.c
View File

@ -211,7 +211,7 @@ static int mv98dx3236_resume_set_cpu_boot_addr(int hw_cpu, void *boot_addr)
return PTR_ERR(base);
writel(0, base + MV98DX3236_CPU_RESUME_CTRL_REG);
writel(virt_to_phys(boot_addr), base + MV98DX3236_CPU_RESUME_ADDR_REG);
writel(__pa_symbol(boot_addr), base + MV98DX3236_CPU_RESUME_ADDR_REG);
iounmap(base);

12
arch/arm/mach-omap1/board-ams-delta.c
View File

@ -510,6 +510,7 @@ static void __init ams_delta_init(void)
static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
{
struct modem_private_data *priv = port->private_data;
int ret;
if (IS_ERR(priv->regulator))
return;
@ -518,9 +519,16 @@ static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
return;
if (state == 0)
regulator_enable(priv->regulator);
ret = regulator_enable(priv->regulator);
else if (old == 0)
regulator_disable(priv->regulator);
ret = regulator_disable(priv->regulator);
else
ret = 0;
if (ret)
dev_warn(port->dev,
"ams_delta modem_pm: failed to %sable regulator: %d\n",
state ? "dis" : "en", ret);
}
static struct plat_serial8250_port ams_delta_modem_ports[] = {

4
arch/arm/mach-omap1/board-osk.c
View File

@ -441,13 +441,11 @@ static struct spi_board_info __initdata mistral_boardinfo[] = { {
.chip_select = 0,
} };
#ifdef CONFIG_PM
static irqreturn_t
osk_mistral_wake_interrupt(int irq, void *ignored)
{
return IRQ_HANDLED;
}
#endif
static void __init osk_mistral_init(void)
{
@ -515,7 +513,6 @@ static void __init osk_mistral_init(void)
gpio_direction_input(OMAP_MPUIO(2));
irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
#ifdef CONFIG_PM
/* share the IRQ in case someone wants to use the
* button for more than wakeup from system sleep.
*/
@ -529,7 +526,6 @@ static void __init osk_mistral_init(void)
ret);
} else
enable_irq_wake(irq);
#endif
} else
printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");

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

@ -28,7 +28,7 @@ static const struct of_device_id omap_dt_match_table[] __initconst = {
{ }
};
static void __init omap_generic_init(void)
static void __init __maybe_unused omap_generic_init(void)
{
pdata_quirks_init(omap_dt_match_table);

239
arch/arm/mach-omap2/hsmmc.c
View File

@ -32,120 +32,6 @@ static u16 control_devconf1_offset;
#define HSMMC_NAME_LEN 9
static void omap_hsmmc1_before_set_reg(struct device *dev,
int power_on, int vdd)
{
u32 reg, prog_io;
struct omap_hsmmc_platform_data *mmc = dev->platform_data;
if (mmc->remux)
mmc->remux(dev, power_on);
/*
* Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the
* card with Vcc regulator (from twl4030 or whatever). OMAP has both
* 1.8V and 3.0V modes, controlled by the PBIAS register.
*
* In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which
* is most naturally TWL VSIM; those pins also use PBIAS.
*
* FIXME handle VMMC1A as needed ...
*/
if (power_on) {
if (cpu_is_omap2430()) {
reg = omap_ctrl_readl(OMAP243X_CONTROL_DEVCONF1);
if ((1 << vdd) >= MMC_VDD_30_31)
reg |= OMAP243X_MMC1_ACTIVE_OVERWRITE;
else
reg &= ~OMAP243X_MMC1_ACTIVE_OVERWRITE;
omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1);
}
if (mmc->internal_clock) {
reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
reg |= OMAP2_MMCSDIO1ADPCLKISEL;
omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0);
}
reg = omap_ctrl_readl(control_pbias_offset);
if (cpu_is_omap3630()) {
/* Set MMC I/O to 52MHz */
prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1);
prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL;
omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1);
} else {
reg |= OMAP2_PBIASSPEEDCTRL0;
}
reg &= ~OMAP2_PBIASLITEPWRDNZ0;
omap_ctrl_writel(reg, control_pbias_offset);
} else {
reg = omap_ctrl_readl(control_pbias_offset);
reg &= ~OMAP2_PBIASLITEPWRDNZ0;
omap_ctrl_writel(reg, control_pbias_offset);
}
}
static void omap_hsmmc1_after_set_reg(struct device *dev, int power_on, int vdd)
{
u32 reg;
/* 100ms delay required for PBIAS configuration */
msleep(100);
if (power_on) {
reg = omap_ctrl_readl(control_pbias_offset);
reg |= (OMAP2_PBIASLITEPWRDNZ0 | OMAP2_PBIASSPEEDCTRL0);
if ((1 << vdd) <= MMC_VDD_165_195)
reg &= ~OMAP2_PBIASLITEVMODE0;
else
reg |= OMAP2_PBIASLITEVMODE0;
omap_ctrl_writel(reg, control_pbias_offset);
} else {
reg = omap_ctrl_readl(control_pbias_offset);
reg |= (OMAP2_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 |
OMAP2_PBIASLITEVMODE0);
omap_ctrl_writel(reg, control_pbias_offset);
}
}
static void hsmmc2_select_input_clk_src(struct omap_hsmmc_platform_data *mmc)
{
u32 reg;
reg = omap_ctrl_readl(control_devconf1_offset);
if (mmc->internal_clock)
reg |= OMAP2_MMCSDIO2ADPCLKISEL;
else
reg &= ~OMAP2_MMCSDIO2ADPCLKISEL;
omap_ctrl_writel(reg, control_devconf1_offset);
}
static void hsmmc2_before_set_reg(struct device *dev, int power_on, int vdd)
{
struct omap_hsmmc_platform_data *mmc = dev->platform_data;
if (mmc->remux)
mmc->remux(dev, power_on);
if (power_on)
hsmmc2_select_input_clk_src(mmc);
}
static int am35x_hsmmc2_set_power(struct device *dev, int power_on, int vdd)
{
struct omap_hsmmc_platform_data *mmc = dev->platform_data;
if (power_on)
hsmmc2_select_input_clk_src(mmc);
return 0;
}
static int nop_mmc_set_power(struct device *dev, int power_on, int vdd)
{
return 0;
}
static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
struct omap_hsmmc_platform_data *mmc)
{
@ -157,101 +43,11 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
return -ENOMEM;
}
if (c->name)
strncpy(hc_name, c->name, HSMMC_NAME_LEN);
else
snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
c->mmc, 1);
snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i", c->mmc, 1);
mmc->name = hc_name;
mmc->caps = c->caps;
mmc->internal_clock = !c->ext_clock;
mmc->reg_offset = 0;
if (c->cover_only) {
/* detect if mobile phone cover removed */
mmc->gpio_cd = -EINVAL;
mmc->gpio_cod = c->gpio_cd;
} else {
/* card detect pin on the mmc socket itself */
mmc->gpio_cd = c->gpio_cd;
mmc->gpio_cod = -EINVAL;
}
mmc->gpio_wp = c->gpio_wp;
mmc->remux = c->remux;
mmc->init_card = c->init_card;
if (c->nonremovable)
mmc->nonremovable = 1;
/*
* NOTE: MMC slots should have a Vcc regulator set up.
* This may be from a TWL4030-family chip, another
* controllable regulator, or a fixed supply.
*
* temporary HACK: ocr_mask instead of fixed supply
*/
if (soc_is_am35xx())
mmc->ocr_mask = MMC_VDD_165_195 |
MMC_VDD_26_27 |
MMC_VDD_27_28 |
MMC_VDD_29_30 |
MMC_VDD_30_31 |
MMC_VDD_31_32;
else
mmc->ocr_mask = c->ocr_mask;
if (!soc_is_am35xx())
mmc->features |= HSMMC_HAS_PBIAS;
switch (c->mmc) {
case 1:
if (mmc->features & HSMMC_HAS_PBIAS) {
/* on-chip level shifting via PBIAS0/PBIAS1 */
mmc->before_set_reg =
omap_hsmmc1_before_set_reg;
mmc->after_set_reg =
omap_hsmmc1_after_set_reg;
}
if (soc_is_am35xx())
mmc->set_power = nop_mmc_set_power;
/* OMAP3630 HSMMC1 supports only 4-bit */
if (cpu_is_omap3630() &&
(c->caps & MMC_CAP_8_BIT_DATA)) {
c->caps &= ~MMC_CAP_8_BIT_DATA;
c->caps |= MMC_CAP_4_BIT_DATA;
mmc->caps = c->caps;
}
break;
case 2:
if (soc_is_am35xx())
mmc->set_power = am35x_hsmmc2_set_power;
if (c->ext_clock)
c->transceiver = 1;
if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
c->caps &= ~MMC_CAP_8_BIT_DATA;
c->caps |= MMC_CAP_4_BIT_DATA;
}
if (mmc->features & HSMMC_HAS_PBIAS) {
/* off-chip level shifting, or none */
mmc->before_set_reg = hsmmc2_before_set_reg;
mmc->after_set_reg = NULL;
}
break;
case 3:
case 4:
case 5:
mmc->before_set_reg = NULL;
mmc->after_set_reg = NULL;
break;
default:
pr_err("MMC%d configuration not supported!\n", c->mmc);
kfree(hc_name);
return -ENODEV;
}
return 0;
}
@ -260,7 +56,6 @@ static int omap_hsmmc_done;
void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
{
struct platform_device *pdev;
struct omap_hsmmc_platform_data *mmc_pdata;
int res;
if (omap_hsmmc_done != 1)
@ -269,32 +64,12 @@ void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
omap_hsmmc_done++;
for (; c->mmc; c++) {
if (!c->deferred)
continue;
pdev = c->pdev;
if (!pdev)
continue;
mmc_pdata = pdev->dev.platform_data;
if (!mmc_pdata)
continue;
if (c->cover_only) {
/* detect if mobile phone cover removed */
mmc_pdata->gpio_cd = -EINVAL;
mmc_pdata->gpio_cod = c->gpio_cd;
} else {
/* card detect pin on the mmc socket itself */
mmc_pdata->gpio_cd = c->gpio_cd;
mmc_pdata->gpio_cod = -EINVAL;
}
mmc_pdata->gpio_wp = c->gpio_wp;
res = omap_device_register(pdev);
if (res)
pr_err("Could not late init MMC %s\n",
c->name);
pr_err("Could not late init MMC\n");
}
}
@ -336,13 +111,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
if (oh->dev_attr != NULL) {
mmc_dev_attr = oh->dev_attr;
mmc_data->controller_flags = mmc_dev_attr->flags;
/*
* erratum 2.1.1.128 doesn't apply if board has
* a transceiver is attached
*/
if (hsmmcinfo->transceiver)
mmc_data->controller_flags &=
~OMAP_HSMMC_BROKEN_MULTIBLOCK_READ;
}
pdev = platform_device_alloc(name, ctrl_nr - 1);
@ -367,9 +135,6 @@ static void __init omap_hsmmc_init_one(struct omap2_hsmmc_info *hsmmcinfo,
hsmmcinfo->pdev = pdev;
if (hsmmcinfo->deferred)
goto free_mmc;
res = omap_device_register(pdev);
if (res) {
pr_err("Could not register od for %s\n", name);

9
arch/arm/mach-omap2/hsmmc.h
View File

@ -12,18 +12,9 @@ struct omap2_hsmmc_info {
u8 mmc; /* controller 1/2/3 */
u32 caps; /* 4/8 wires and any additional host
* capabilities OR'd (ref. linux/mmc/host.h) */
bool transceiver; /* MMC-2 option */
bool ext_clock; /* use external pin for input clock */
bool cover_only; /* No card detect - just cover switch */
bool nonremovable; /* Nonremovable e.g. eMMC */
bool deferred; /* mmc needs a deferred probe */
int gpio_cd; /* or -EINVAL */
int gpio_wp; /* or -EINVAL */
char *name; /* or NULL for default */
struct platform_device *pdev; /* mmc controller instance */
int ocr_mask; /* temporary HACK */
/* Remux (pad configuration) when powering on/off */
void (*remux)(struct device *dev, int power_on);
/* init some special card */
void (*init_card)(struct mmc_card *card);
};

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

@ -410,7 +410,7 @@ static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
}
static void __init omap_hwmod_init_postsetup(void)
static void __init __maybe_unused omap_hwmod_init_postsetup(void)
{
u8 postsetup_state;

1
arch/arm/mach-omap2/pm34xx.c
View File

@ -486,7 +486,6 @@ int __init omap3_pm_init(void)
ret = request_irq(omap_prcm_event_to_irq("io"),
_prcm_int_handle_io, IRQF_SHARED | IRQF_NO_SUSPEND, "pm_io",
omap3_pm_init);
enable_irq(omap_prcm_event_to_irq("io"));
if (ret) {
pr_err("pm: Failed to request pm_io irq\n");

7
arch/arm/mach-omap2/prm3xxx.c
View File

@ -692,7 +692,6 @@ static int omap3xxx_prm_late_init(void)
{
struct device_node *np;
int irq_num;
int ret;
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
@ -712,12 +711,8 @@ static int omap3xxx_prm_late_init(void)
}
omap3xxx_prm_enable_io_wakeup();
ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
if (!ret)
irq_set_status_flags(omap_prcm_event_to_irq("io"),
IRQ_NOAUTOEN);
return ret;
return omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
}
static void __exit omap3xxx_prm_exit(void)

55
arch/arm/mach-omap2/prm44xx.c
View File

@ -336,6 +336,27 @@ static void omap44xx_prm_reconfigure_io_chain(void)
return;
}
/**
* omap44xx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches
*
* Activates the I/O wakeup event latches and allows events logged by
* those latches to signal a wakeup event to the PRCM. For I/O wakeups
* to occur, WAKEUPENABLE bits must be set in the pad mux registers, and
* omap44xx_prm_reconfigure_io_chain() must be called. No return value.
*/
static void __init omap44xx_prm_enable_io_wakeup(void)
{
s32 inst = omap4_prmst_get_prm_dev_inst();
if (inst == PRM_INSTANCE_UNKNOWN)
return;
omap4_prm_rmw_inst_reg_bits(OMAP4430_GLOBAL_WUEN_MASK,
OMAP4430_GLOBAL_WUEN_MASK,
inst,
omap4_prcm_irq_setup.pm_ctrl);
}
/**
* omap44xx_prm_read_reset_sources - return the last SoC reset source
*
@ -668,6 +689,8 @@ struct pwrdm_ops omap4_pwrdm_operations = {
.pwrdm_has_voltdm = omap4_check_vcvp,
};
static int omap44xx_prm_late_init(void);
/*
* XXX document
*/
@ -675,6 +698,7 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
.read_reset_sources = &omap44xx_prm_read_reset_sources,
.was_any_context_lost_old = &omap44xx_prm_was_any_context_lost_old,
.clear_context_loss_flags_old = &omap44xx_prm_clear_context_loss_flags_old,
.late_init = &omap44xx_prm_late_init,
.assert_hardreset = omap4_prminst_assert_hardreset,
.deassert_hardreset = omap4_prminst_deassert_hardreset,
.is_hardreset_asserted = omap4_prminst_is_hardreset_asserted,
@ -711,6 +735,37 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data)
return prm_register(&omap44xx_prm_ll_data);
}
static int omap44xx_prm_late_init(void)
{
int irq_num;
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
irq_num = of_irq_get(prm_init_data->np, 0);
/*
* Already have OMAP4 IRQ num. For all other platforms, we need
* IRQ numbers from DT
*/
if (irq_num < 0 && !(prm_init_data->flags & PRM_IRQ_DEFAULT)) {
if (irq_num == -EPROBE_DEFER)
return irq_num;
/* Have nothing to do */
return 0;
}
/* Once OMAP4 DT is filled as well */
if (irq_num >= 0) {
omap4_prcm_irq_setup.irq = irq_num;
omap4_prcm_irq_setup.xlate_irq = NULL;
}
omap44xx_prm_enable_io_wakeup();
return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup);
}
static void __exit omap44xx_prm_exit(void)
{
prm_unregister(&omap44xx_prm_ll_data);

2
arch/arm/mach-prima2/common.c
View File

@ -15,7 +15,7 @@
#include <linux/of_platform.h>
#include "common.h"
static void __init sirfsoc_init_late(void)
static void __init __maybe_unused sirfsoc_init_late(void)
{
sirfsoc_pm_init();
}

1
arch/arm/mach-pxa/Kconfig
View File

@ -566,6 +566,7 @@ config MACH_ICONTROL
config ARCH_PXA_ESERIES
bool "PXA based Toshiba e-series PDAs"
select FB_W100
select FB
select PXA25x
config MACH_E330

10
arch/arm/mach-pxa/include/mach/mtd-xip.h
View File

@ -17,11 +17,15 @@
#include <mach/regs-ost.h>
#define xip_irqpending() (ICIP & ICMR)
/* restored July 2017, this did not build since 2011! */
#define ICIP io_p2v(0x40d00000)
#define ICMR io_p2v(0x40d00004)
#define xip_irqpending() (readl(ICIP) & readl(ICMR))
/* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
#define xip_currtime() (OSCR)
#define xip_elapsed_since(x) (signed)((OSCR - (x)) / 4)
#define xip_currtime() readl(OSCR)
#define xip_elapsed_since(x) (signed)((readl(OSCR) - (x)) / 4)
/*
* xip_cpu_idle() is used when waiting for a delay equal or larger than

4
arch/arm/mach-rpc/include/mach/hardware.h
View File

@ -25,8 +25,8 @@
* *_SIZE is the size of the region
* *_BASE is the virtual address
*/
#define RAM_SIZE 0x10000000
#define RAM_START 0x10000000
#define RPC_RAM_SIZE 0x10000000
#define RPC_RAM_START 0x10000000
#define EASI_SIZE 0x08000000 /* EASI I/O */
#define EASI_START 0x08000000

25
arch/arm/mach-sa1100/clock.c
View File

@ -35,6 +35,31 @@ struct clk clk_##_name = { \
static DEFINE_SPINLOCK(clocks_lock);
/* Dummy clk routine to build generic kernel parts that may be using them */
long clk_round_rate(struct clk *clk, unsigned long rate)
{
return clk_get_rate(clk);
}
EXPORT_SYMBOL(clk_round_rate);
int clk_set_rate(struct clk *clk, unsigned long rate)
{
return 0;
}
EXPORT_SYMBOL(clk_set_rate);
int clk_set_parent(struct clk *clk, struct clk *parent)
{
return 0;
}
EXPORT_SYMBOL(clk_set_parent);
struct clk *clk_get_parent(struct clk *clk)
{
return NULL;
}
EXPORT_SYMBOL(clk_get_parent);
static void clk_gpio27_enable(struct clk *clk)
{
/*

4
arch/arm/mach-sa1100/include/mach/mtd-xip.h
View File

@ -20,7 +20,7 @@
#define xip_irqpending() (ICIP & ICMR)
/* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */
#define xip_currtime() (OSCR)
#define xip_elapsed_since(x) (signed)((OSCR - (x)) / 4)
#define xip_currtime() readl_relaxed(OSCR)
#define xip_elapsed_since(x) (signed)((readl_relaxed(OSCR) - (x)) / 4)
#endif /* __ARCH_SA1100_MTD_XIP_H__ */

6
arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
View File

@ -67,8 +67,12 @@ static int regulator_quirk_notify(struct notifier_block *nb,
{
struct device *dev = data;
struct i2c_client *client;
static bool done;
u32 mon;
if (done)
return 0;
mon = ioread32(irqc + IRQC_MONITOR);
dev_dbg(dev, "%s: %ld, IRQC_MONITOR = 0x%x\n", __func__, action, mon);
if (mon & REGULATOR_IRQ_MASK)
@ -99,7 +103,7 @@ static int regulator_quirk_notify(struct notifier_block *nb,
remove:
dev_info(dev, "IRQ2 is not asserted, removing quirk\n");
bus_unregister_notifier(&i2c_bus_type, nb);
done = true;
iounmap(irqc);
return 0;
}

1
arch/arm/mach-ux500/cpu-db8500.c
View File

@ -133,6 +133,7 @@ static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler)
static struct arm_pmu_platdata db8500_pmu_platdata = {
.handle_irq = db8500_pmu_handler,
.irq_flags = IRQF_NOBALANCING | IRQF_NO_THREAD,
};
static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {

29
arch/arm/mach-w90x900/clock.c
View File

@ -93,3 +93,32 @@ void nuc900_subclk_enable(struct clk *clk, int enable)
__raw_writel(clken, W90X900_VA_CLKPWR + SUBCLK);
}
/* dummy functions, should not be called */
long clk_round_rate(struct clk *clk, unsigned long rate)
{
WARN_ON(clk);
return 0;
}
EXPORT_SYMBOL(clk_round_rate);
int clk_set_rate(struct clk *clk, unsigned long rate)
{
WARN_ON(clk);
return 0;
}
EXPORT_SYMBOL(clk_set_rate);
int clk_set_parent(struct clk *clk, struct clk *parent)
{
WARN_ON(clk);
return 0;
}
EXPORT_SYMBOL(clk_set_parent);
struct clk *clk_get_parent(struct clk *clk)
{
WARN_ON(clk);
return NULL;
}
EXPORT_SYMBOL(clk_get_parent);

45
arch/arm/mm/dma-mapping-nommu.c
View File

@ -40,9 +40,21 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
{
const struct dma_map_ops *ops = &dma_noop_ops;
void *ret;
/*
* We are here because:
* Try generic allocator first if we are advertised that
* consistency is not required.
*/
if (attrs & DMA_ATTR_NON_CONSISTENT)
return ops->alloc(dev, size, dma_handle, gfp, attrs);
ret = dma_alloc_from_global_coherent(size, dma_handle);
/*
* dma_alloc_from_global_coherent() may fail because:
*
* - no consistent DMA region has been defined, so we can't
* continue.
* - there is no space left in consistent DMA region, so we
@ -50,11 +62,8 @@ static void *arm_nommu_dma_alloc(struct device *dev, size_t size,
* advertised that consistency is not required.
*/
if (attrs & DMA_ATTR_NON_CONSISTENT)
return ops->alloc(dev, size, dma_handle, gfp, attrs);
WARN_ON_ONCE(1);
return NULL;
WARN_ON_ONCE(ret == NULL);
return ret;
}
static void arm_nommu_dma_free(struct device *dev, size_t size,
@ -63,14 +72,31 @@ static void arm_nommu_dma_free(struct device *dev, size_t size,
{
const struct dma_map_ops *ops = &dma_noop_ops;
if (attrs & DMA_ATTR_NON_CONSISTENT)
if (attrs & DMA_ATTR_NON_CONSISTENT) {
ops->free(dev, size, cpu_addr, dma_addr, attrs);
else
WARN_ON_ONCE(1);
} else {
int ret = dma_release_from_global_coherent(get_order(size),
cpu_addr);
WARN_ON_ONCE(ret == 0);
}
return;
}
static int arm_nommu_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
int ret;
if (dma_mmap_from_global_coherent(vma, cpu_addr, size, &ret))
return ret;
return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size);
}
static void __dma_page_cpu_to_dev(phys_addr_t paddr, size_t size,
enum dma_data_direction dir)
{
@ -173,6 +199,7 @@ static void arm_nommu_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist
const struct dma_map_ops arm_nommu_dma_ops = {
.alloc = arm_nommu_dma_alloc,
.free = arm_nommu_dma_free,
.mmap = arm_nommu_dma_mmap,
.map_page = arm_nommu_dma_map_page,
.unmap_page = arm_nommu_dma_unmap_page,
.map_sg = arm_nommu_dma_map_sg,

2
arch/arm/mm/dma-mapping.c
View File

@ -851,7 +851,7 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma,
unsigned long pfn = dma_to_pfn(dev, dma_addr);
unsigned long off = vma->vm_pgoff;
if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (off < nr_pages && nr_vma_pages <= (nr_pages - off)) {

2
arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
View File

@ -452,7 +452,7 @@ i2c2: i2c@1c2b400 {
emac: ethernet@1c30000 {
compatible = "allwinner,sun50i-a64-emac";
syscon = <&syscon>;
reg = <0x01c30000 0x100>;
reg = <0x01c30000 0x10000>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "macirq";
resets = <&ccu RST_BUS_EMAC>;

2
arch/arm64/boot/dts/amlogic/meson-gx.dtsi
View File

@ -400,7 +400,7 @@ i2c_AO: i2c@500 {
};
pwm_AO_ab: pwm@550 {
compatible = "amlogic,meson-gx-pwm", "amlogic,meson-gxbb-pwm";
compatible = "amlogic,meson-gx-ao-pwm", "amlogic,meson-gxbb-ao-pwm";
reg = <0x0 0x00550 0x0 0x10>;
#pwm-cells = <3>;
status = "disabled";

4
arch/arm64/boot/dts/amlogic/meson-gxl-s905x-khadas-vim.dts
View File

@ -109,8 +109,8 @@ &pwm_AO_ab {
status = "okay";
pinctrl-0 = <&pwm_ao_a_3_pins>, <&pwm_ao_b_pins>;
pinctrl-names = "default";
clocks = <&clkc CLKID_FCLK_DIV4>;
clock-names = "clkin0";
clocks = <&xtal> , <&xtal>;
clock-names = "clkin0", "clkin1" ;
};
&pwm_ef {

103
arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
View File

@ -10,12 +10,20 @@
#include <dt-bindings/input/input.h>
#include "meson-gxl-s905x-p212.dtsi"
#include "meson-gxl-s905x.dtsi"
/ {
compatible = "libretech,cc", "amlogic,s905x", "amlogic,meson-gxl";
model = "Libre Technology CC";
aliases {
serial0 = &uart_AO;
};
chosen {
stdout-path = "serial0:115200n8";
};
cvbs-connector {
compatible = "composite-video-connector";
@ -26,6 +34,11 @@ cvbs_connector_in: endpoint {
};
};
emmc_pwrseq: emmc-pwrseq {
compatible = "mmc-pwrseq-emmc";
reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
};
hdmi-connector {
compatible = "hdmi-connector";
type = "a";
@ -53,6 +66,39 @@ blue {
linux,default-trigger = "heartbeat";
};
};
memory@0 {
device_type = "memory";
reg = <0x0 0x0 0x0 0x80000000>;
};
vcc_3v3: regulator-vcc_3v3 {
compatible = "regulator-fixed";
regulator-name = "VCC_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
vcc_card: regulator-vcc-card {
compatible = "regulator-gpio";
regulator-name = "VCC_CARD";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_HIGH>;
gpios-states = <0>;
states = <3300000 0>,
<1800000 1>;
};
vddio_boot: regulator-vddio_boot {
compatible = "regulator-fixed";
regulator-name = "VDDIO_BOOT";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
};
&cvbs_vdac_port {
@ -61,6 +107,16 @@ cvbs_vdac_out: endpoint {
};
};
&ethmac {
status = "okay";
};
&ir {
status = "okay";
pinctrl-0 = <&remote_input_ao_pins>;
pinctrl-names = "default";
};
&hdmi_tx {
status = "okay";
pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
@ -73,20 +129,43 @@ hdmi_tx_tmds_out: endpoint {
};
};
/*
* The following devices exists but are exposed on the general
* purpose GPIO header. End user may well decide to use those pins
* for another purpose
*/
/* SD card */
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
pinctrl-names = "default";
&sd_emmc_a {
status = "disabled";
bus-width = <4>;
cap-sd-highspeed;
max-frequency = <100000000>;
disable-wp;
cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
cd-inverted;
vmmc-supply = <&vcc_3v3>;
vqmmc-supply = <&vcc_card>;
};
&uart_A {
status = "disabled";
/* eMMC */
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_pins>;
pinctrl-names = "default";
bus-width = <8>;
cap-mmc-highspeed;
max-frequency = <50000000>;
non-removable;
disable-wp;
mmc-pwrseq = <&emmc_pwrseq>;
vmmc-supply = <&vcc_3v3>;
vqmmc-supply = <&vddio_boot>;
};
&wifi32k {
status = "disabled";
&uart_AO {
status = "okay";
pinctrl-0 = <&uart_ao_a_pins>;
pinctrl-names = "default";
};

2
arch/arm64/boot/dts/marvell/armada-37xx.dtsi
View File

@ -219,7 +219,7 @@ pinctrl_sb: pinctrl@18800 {
reg = <0x18800 0x100>, <0x18C00 0x20>;
gpiosb: gpio {
#gpio-cells = <2>;
gpio-ranges = <&pinctrl_sb 0 0 29>;
gpio-ranges = <&pinctrl_sb 0 0 30>;
gpio-controller;
interrupts =
<GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,

1
arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
View File

@ -270,6 +270,7 @@ cpm_crypto: crypto@800000 {
interrupt-names = "mem", "ring0", "ring1",
"ring2", "ring3", "eip";
clocks = <&cpm_clk 1 26>;
dma-coherent;
};
};

3
arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
View File

@ -64,7 +64,7 @@ cps_rtc: rtc@284000 {
compatible = "marvell,armada-8k-rtc";
reg = <0x284000 0x20>, <0x284080 0x24>;
reg-names = "rtc", "rtc-soc";
interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <ICU_GRP_NSR 77 IRQ_TYPE_LEVEL_HIGH>;
};
cps_ethernet: ethernet@0 {
@ -261,6 +261,7 @@ cps_crypto: crypto@800000 {
interrupt-names = "mem", "ring0", "ring1",
"ring2", "ring3", "eip";
clocks = <&cps_clk 1 26>;
dma-coherent;
/*
* The cryptographic engine found on the cp110
* master is enabled by default at the SoC

2
arch/arm64/boot/dts/renesas/salvator-common.dtsi
View File

@ -508,7 +508,7 @@ &rcar_sound {
/* audio_clkout0/1/2/3 */
#clock-cells = <1>;
clock-frequency = <11289600 12288000>;
clock-frequency = <12288000 11289600>;
status = "okay";

2
arch/arm64/boot/dts/renesas/ulcb.dtsi
View File

@ -281,7 +281,7 @@ &rcar_sound {
/* audio_clkout0/1/2/3 */
#clock-cells = <1>;
clock-frequency = <11289600 12288000>;
clock-frequency = <12288000 11289600>;
status = "okay";

1
arch/arm64/configs/defconfig
View File

@ -476,6 +476,7 @@ CONFIG_QCOM_CLK_SMD_RPM=y
CONFIG_MSM_GCC_8916=y
CONFIG_MSM_GCC_8994=y
CONFIG_MSM_MMCC_8996=y
CONFIG_HWSPINLOCK=y
CONFIG_HWSPINLOCK_QCOM=y
CONFIG_ARM_MHU=y
CONFIG_PLATFORM_MHU=y

2
arch/arm64/include/asm/atomic_lse.h
View File

@ -435,7 +435,7 @@ static inline long atomic64_dec_if_positive(atomic64_t *v)
" sub x30, x30, %[ret]\n"
" cbnz x30, 1b\n"
"2:")
: [ret] "+&r" (x0), [v] "+Q" (v->counter)
: [ret] "+r" (x0), [v] "+Q" (v->counter)
:
: __LL_SC_CLOBBERS, "cc", "memory");

6
arch/arm64/include/asm/memory.h
View File

@ -64,8 +64,10 @@
* TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area.
*/
#define VA_BITS (CONFIG_ARM64_VA_BITS)
#define VA_START (UL(0xffffffffffffffff) << VA_BITS)
#define PAGE_OFFSET (UL(0xffffffffffffffff) << (VA_BITS - 1))
#define VA_START (UL(0xffffffffffffffff) - \
(UL(1) << VA_BITS) + 1)
#define PAGE_OFFSET (UL(0xffffffffffffffff) - \
(UL(1) << (VA_BITS - 1)) + 1)
#define KIMAGE_VADDR (MODULES_END)
#define MODULES_END (MODULES_VADDR + MODULES_VSIZE)
#define MODULES_VADDR (VA_START + KASAN_SHADOW_SIZE)

4
arch/arm64/include/asm/sysreg.h
View File

@ -492,7 +492,7 @@ asm(
* the "%x0" template means XZR.
*/
#define write_sysreg(v, r) do { \
u64 __val = (u64)v; \
u64 __val = (u64)(v); \
asm volatile("msr " __stringify(r) ", %x0" \
: : "rZ" (__val)); \
} while (0)
@ -508,7 +508,7 @@ asm(
})
#define write_sysreg_s(v, r) do { \
u64 __val = (u64)v; \
u64 __val = (u64)(v); \
asm volatile("msr_s " __stringify(r) ", %x0" : : "rZ" (__val)); \
} while (0)

2
arch/arm64/include/asm/uaccess.h
View File

@ -69,7 +69,7 @@ static inline void set_fs(mm_segment_t fs)
*/
#define __range_ok(addr, size) \
({ \
unsigned long __addr = (unsigned long __force)(addr); \
unsigned long __addr = (unsigned long)(addr); \
unsigned long flag, roksum; \
__chk_user_ptr(addr); \
asm("adds %1, %1, %3; ccmp %1, %4, #2, cc; cset %0, ls" \

4
arch/arm64/kernel/cpu_ops.c
View File

@ -82,8 +82,8 @@ static const char *__init cpu_read_enable_method(int cpu)
* Don't warn spuriously.
*/
if (cpu != 0)
pr_err("%s: missing enable-method property\n",
dn->full_name);
pr_err("%pOF: missing enable-method property\n",
dn);
}
} else {
enable_method = acpi_get_enable_method(cpu);

12
arch/arm64/kernel/smp.c
View File

@ -469,7 +469,7 @@ static u64 __init of_get_cpu_mpidr(struct device_node *dn)
*/
cell = of_get_property(dn, "reg", NULL);
if (!cell) {
pr_err("%s: missing reg property\n", dn->full_name);
pr_err("%pOF: missing reg property\n", dn);
return INVALID_HWID;
}
@ -478,7 +478,7 @@ static u64 __init of_get_cpu_mpidr(struct device_node *dn)
* Non affinity bits must be set to 0 in the DT
*/
if (hwid & ~MPIDR_HWID_BITMASK) {
pr_err("%s: invalid reg property\n", dn->full_name);
pr_err("%pOF: invalid reg property\n", dn);
return INVALID_HWID;
}
return hwid;
@ -627,8 +627,8 @@ static void __init of_parse_and_init_cpus(void)
goto next;
if (is_mpidr_duplicate(cpu_count, hwid)) {
pr_err("%s: duplicate cpu reg properties in the DT\n",
dn->full_name);
pr_err("%pOF: duplicate cpu reg properties in the DT\n",
dn);
goto next;
}
@ -640,8 +640,8 @@ static void __init of_parse_and_init_cpus(void)
*/
if (hwid == cpu_logical_map(0)) {
if (bootcpu_valid) {
pr_err("%s: duplicate boot cpu reg property in DT\n",
dn->full_name);
pr_err("%pOF: duplicate boot cpu reg property in DT\n",
dn);
goto next;
}

22
arch/arm64/kernel/topology.c
View File

@ -45,7 +45,7 @@ static int __init get_cpu_for_node(struct device_node *node)
}
}
pr_crit("Unable to find CPU node for %s\n", cpu_node->full_name);
pr_crit("Unable to find CPU node for %pOF\n", cpu_node);
of_node_put(cpu_node);
return -1;
@ -71,8 +71,8 @@ static int __init parse_core(struct device_node *core, int cluster_id,
cpu_topology[cpu].core_id = core_id;
cpu_topology[cpu].thread_id = i;
} else {
pr_err("%s: Can't get CPU for thread\n",
t->full_name);
pr_err("%pOF: Can't get CPU for thread\n",
t);
of_node_put(t);
return -EINVAL;
}
@ -84,15 +84,15 @@ static int __init parse_core(struct device_node *core, int cluster_id,
cpu = get_cpu_for_node(core);
if (cpu >= 0) {
if (!leaf) {
pr_err("%s: Core has both threads and CPU\n",
core->full_name);
pr_err("%pOF: Core has both threads and CPU\n",
core);
return -EINVAL;
}
cpu_topology[cpu].cluster_id = cluster_id;
cpu_topology[cpu].core_id = core_id;
} else if (leaf) {
pr_err("%s: Can't get CPU for leaf core\n", core->full_name);
pr_err("%pOF: Can't get CPU for leaf core\n", core);
return -EINVAL;
}
@ -137,8 +137,8 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
has_cores = true;
if (depth == 0) {
pr_err("%s: cpu-map children should be clusters\n",
c->full_name);
pr_err("%pOF: cpu-map children should be clusters\n",
c);
of_node_put(c);
return -EINVAL;
}
@ -146,8 +146,8 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
if (leaf) {
ret = parse_core(c, cluster_id, core_id++);
} else {
pr_err("%s: Non-leaf cluster with core %s\n",
cluster->full_name, name);
pr_err("%pOF: Non-leaf cluster with core %s\n",
cluster, name);
ret = -EINVAL;
}
@ -159,7 +159,7 @@ static int __init parse_cluster(struct device_node *cluster, int depth)
} while (c);
if (leaf && !has_cores)
pr_warn("%s: empty cluster\n", cluster->full_name);
pr_warn("%pOF: empty cluster\n", cluster);
if (leaf)
cluster_id++;

10
arch/arm64/kernel/traps.c
View File

@ -274,10 +274,12 @@ static DEFINE_RAW_SPINLOCK(die_lock);
void die(const char *str, struct pt_regs *regs, int err)
{
int ret;
unsigned long flags;
raw_spin_lock_irqsave(&die_lock, flags);
oops_enter();
raw_spin_lock_irq(&die_lock);
console_verbose();
bust_spinlocks(1);
ret = __die(str, err, regs);
@ -287,13 +289,15 @@ void die(const char *str, struct pt_regs *regs, int err)
bust_spinlocks(0);
add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
raw_spin_unlock_irq(&die_lock);
oops_exit();
if (in_interrupt())
panic("Fatal exception in interrupt");
if (panic_on_oops)
panic("Fatal exception");
raw_spin_unlock_irqrestore(&die_lock, flags);
if (ret != NOTIFY_STOP)
do_exit(SIGSEGV);
}
@ -519,7 +523,7 @@ static void cntfrq_read_handler(unsigned int esr, struct pt_regs *regs)
{
int rt = (esr & ESR_ELx_SYS64_ISS_RT_MASK) >> ESR_ELx_SYS64_ISS_RT_SHIFT;
pt_regs_write_reg(regs, rt, read_sysreg(cntfrq_el0));
pt_regs_write_reg(regs, rt, arch_timer_get_rate());
regs->pc += 4;
}

2
arch/arm64/kvm/sys_regs.c
View File

@ -764,7 +764,7 @@ static bool access_pmovs(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
if (p->is_write) {
if (r->CRm & 0x2)
/* accessing PMOVSSET_EL0 */
kvm_pmu_overflow_set(vcpu, p->regval & mask);
vcpu_sys_reg(vcpu, PMOVSSET_EL0) |= (p->regval & mask);
else
/* accessing PMOVSCLR_EL0 */
vcpu_sys_reg(vcpu, PMOVSSET_EL0) &= ~(p->regval & mask);

3
arch/arm64/lib/copy_page.S
View File

@ -30,9 +30,10 @@
*/
ENTRY(copy_page)
alternative_if ARM64_HAS_NO_HW_PREFETCH
# Prefetch two cache lines ahead.
// Prefetch three cache lines ahead.
prfm pldl1strm, [x1, #128]
prfm pldl1strm, [x1, #256]
prfm pldl1strm, [x1, #384]
alternative_else_nop_endif
ldp x2, x3, [x1]

4
arch/arm64/mm/dma-mapping.c
View File

@ -329,7 +329,7 @@ static int __swiotlb_mmap(struct device *dev,
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
is_device_dma_coherent(dev));
if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
return __swiotlb_mmap_pfn(vma, pfn, size);
@ -706,7 +706,7 @@ static int __iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma,
vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
is_device_dma_coherent(dev));
if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))
return ret;
if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {

15
arch/arm64/mm/fault.c
View File

@ -163,26 +163,27 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
/* only preserve the access flags and write permission */
pte_val(entry) &= PTE_AF | PTE_WRITE | PTE_DIRTY;
/*
* PTE_RDONLY is cleared by default in the asm below, so set it in
* back if necessary (read-only or clean PTE).
*/
/* set PTE_RDONLY if actual read-only or clean PTE */
if (!pte_write(entry) || !pte_sw_dirty(entry))
pte_val(entry) |= PTE_RDONLY;
/*
* Setting the flags must be done atomically to avoid racing with the
* hardware update of the access/dirty state.
* hardware update of the access/dirty state. The PTE_RDONLY bit must
* be set to the most permissive (lowest value) of *ptep and entry
* (calculated as: a & b == ~(~a | ~b)).
*/
pte_val(entry) ^= PTE_RDONLY;
asm volatile("// ptep_set_access_flags\n"
" prfm pstl1strm, %2\n"
"1: ldxr %0, %2\n"
" and %0, %0, %3 // clear PTE_RDONLY\n"
" eor %0, %0, %3 // negate PTE_RDONLY in *ptep\n"
" orr %0, %0, %4 // set flags\n"
" eor %0, %0, %3 // negate final PTE_RDONLY\n"
" stxr %w1, %0, %2\n"
" cbnz %w1, 1b\n"
: "=&r" (old_pteval), "=&r" (tmp), "+Q" (pte_val(*ptep))
: "L" (~PTE_RDONLY), "r" (pte_val(entry)));
: "L" (PTE_RDONLY), "r" (pte_val(entry)));
flush_tlb_fix_spurious_fault(vma, address);
return 1;

18
arch/arm64/mm/mmu.c
View File

@ -496,7 +496,7 @@ void mark_rodata_ro(void)
static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
pgprot_t prot, struct vm_struct *vma,
int flags)
int flags, unsigned long vm_flags)
{
phys_addr_t pa_start = __pa_symbol(va_start);
unsigned long size = va_end - va_start;
@ -507,10 +507,13 @@ static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
__create_pgd_mapping(pgd, pa_start, (unsigned long)va_start, size, prot,
early_pgtable_alloc, flags);
if (!(vm_flags & VM_NO_GUARD))
size += PAGE_SIZE;
vma->addr = va_start;
vma->phys_addr = pa_start;
vma->size = size;
vma->flags = VM_MAP;
vma->flags = VM_MAP | vm_flags;
vma->caller = __builtin_return_address(0);
vm_area_add_early(vma);
@ -541,14 +544,15 @@ static void __init map_kernel(pgd_t *pgd)
* Only rodata will be remapped with different permissions later on,
* all other segments are allowed to use contiguous mappings.
*/
map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0);
map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0,
VM_NO_GUARD);
map_kernel_segment(pgd, __start_rodata, __inittext_begin, PAGE_KERNEL,
&vmlinux_rodata, NO_CONT_MAPPINGS);
&vmlinux_rodata, NO_CONT_MAPPINGS, VM_NO_GUARD);
map_kernel_segment(pgd, __inittext_begin, __inittext_end, text_prot,
&vmlinux_inittext, 0);
&vmlinux_inittext, 0, VM_NO_GUARD);
map_kernel_segment(pgd, __initdata_begin, __initdata_end, PAGE_KERNEL,
&vmlinux_initdata, 0);
map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0);
&vmlinux_initdata, 0, VM_NO_GUARD);
map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0, 0);
if (!pgd_val(*pgd_offset_raw(pgd, FIXADDR_START))) {
/*

7
arch/arm64/mm/numa.c
View File

@ -208,8 +208,6 @@ int __init numa_add_memblk(int nid, u64 start, u64 end)
}
node_set(nid, numa_nodes_parsed);
pr_info("Adding memblock [0x%llx - 0x%llx] on node %d\n",
start, (end - 1), nid);
return ret;
}
@ -223,10 +221,7 @@ static void __init setup_node_data(int nid, u64 start_pfn, u64 end_pfn)
void *nd;
int tnid;
if (start_pfn < end_pfn)
pr_info("Initmem setup node %d [mem %#010Lx-%#010Lx]\n", nid,
start_pfn << PAGE_SHIFT, (end_pfn << PAGE_SHIFT) - 1);
else
if (start_pfn >= end_pfn)
pr_info("Initmem setup node %d [<memory-less node>]\n", nid);
nd_pa = memblock_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid);

8
arch/ia64/include/asm/tlb.h
View File

@ -168,7 +168,8 @@ static inline void __tlb_alloc_page(struct mmu_gather *tlb)
static inline void
tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->max = ARRAY_SIZE(tlb->local);
@ -185,8 +186,11 @@ tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start
* collected.
*/
static inline void
tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end)
arch_tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end, bool force)
{
if (force)
tlb->need_flush = 1;
/*
* Note: tlb->nr may be 0 at this point, so we can't rely on tlb->start_addr and
* tlb->end_addr.

2
arch/mips/Kconfig
View File

@ -2260,7 +2260,7 @@ config CPU_R4K_CACHE_TLB
config MIPS_MT_SMP
bool "MIPS MT SMP support (1 TC on each available VPE)"
depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6
depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
select SYNC_R4K

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