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提交 7bf14c28 编写于 作者: R Radim Krčmář
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Merge branch 'x86/hyperv' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 

Topic branch for stable KVM clockource under Hyper-V.

Thanks to Christoffer Dall for resolving the ARM conflict.
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文本差异 电子邮件补丁
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......@@ -107,6 +107,7 @@ Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>
Maciej W. Rozycki <macro@mips.com> <macro@imgtec.com>
Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
Mark Brown <broonie@sirena.org.uk>
Mark Yao <markyao0591@gmail.com> <mark.yao@rock-chips.com>
Martin Kepplinger <martink@posteo.de> <martin.kepplinger@theobroma-systems.com>
Martin Kepplinger <martink@posteo.de> <martin.kepplinger@ginzinger.com>
Matthieu CASTET <castet.matthieu@free.fr>
......
Documentation/ABI/testing/sysfs-bus-iio-dfsdm-adc-stm32 0 → 100644
浏览文件 @ 7bf14c28
What: /sys/bus/iio/devices/iio:deviceX/in_voltage_spi_clk_freq
KernelVersion: 4.14
Contact: arnaud.pouliquen@st.com
Description:
For audio purpose only.
Used by audio driver to set/get the spi input frequency.
This is mandatory if DFSDM is slave on SPI bus, to
provide information on the SPI clock frequency during runtime
Notice that the SPI frequency should be a multiple of sample
frequency to ensure the precision.
if DFSDM input is SPI master
Reading SPI clkout frequency,
error on writing
If DFSDM input is SPI Slave:
Reading returns value previously set.
Writing value before starting conversions.
\ No newline at end of file
Documentation/ABI/testing/sysfs-devices-system-cpu
浏览文件 @ 7bf14c28
......@@ -375,3 +375,19 @@ Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: information about CPUs heterogeneity.
cpu_capacity: capacity of cpu#.
What: /sys/devices/system/cpu/vulnerabilities
/sys/devices/system/cpu/vulnerabilities/meltdown
/sys/devices/system/cpu/vulnerabilities/spectre_v1
/sys/devices/system/cpu/vulnerabilities/spectre_v2
Date: January 2018
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Information about CPU vulnerabilities
The files are named after the code names of CPU
vulnerabilities. The output of those files reflects the
state of the CPUs in the system. Possible output values:
"Not affected" CPU is not affected by the vulnerability
"Vulnerable" CPU is affected and no mitigation in effect
"Mitigation: $M" CPU is affected and mitigation $M is in effect
Documentation/IRQ-domain.txt
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......@@ -265,37 +265,5 @@ support other architectures, such as ARM, ARM64 etc.
=== Debugging ===
If you switch on CONFIG_IRQ_DOMAIN_DEBUG (which depends on
CONFIG_IRQ_DOMAIN and CONFIG_DEBUG_FS), you will find a new file in
your debugfs mount point, called irq_domain_mapping. This file
contains a live snapshot of all the IRQ domains in the system:
name mapped linear-max direct-max devtree-node
pl061 8 8 0 /smb/gpio@e0080000
pl061 8 8 0 /smb/gpio@e1050000
pMSI 0 0 0 /interrupt-controller@e1101000/v2m@e0080000
MSI 37 0 0 /interrupt-controller@e1101000/v2m@e0080000
GICv2m 37 0 0 /interrupt-controller@e1101000/v2m@e0080000
GICv2 448 448 0 /interrupt-controller@e1101000
it also iterates over the interrupts to display their mapping in the
domains, and makes the domain stacking visible:
irq hwirq chip name chip data active type domain
1 0x00019 GICv2 0xffff00000916bfd8 * LINEAR GICv2
2 0x0001d GICv2 0xffff00000916bfd8 LINEAR GICv2
3 0x0001e GICv2 0xffff00000916bfd8 * LINEAR GICv2
4 0x0001b GICv2 0xffff00000916bfd8 * LINEAR GICv2
5 0x0001a GICv2 0xffff00000916bfd8 LINEAR GICv2
[...]
96 0x81808 MSI 0x (null) RADIX MSI
96+ 0x00063 GICv2m 0xffff8003ee116980 RADIX GICv2m
96+ 0x00063 GICv2 0xffff00000916bfd8 LINEAR GICv2
97 0x08800 MSI 0x (null) * RADIX MSI
97+ 0x00064 GICv2m 0xffff8003ee116980 * RADIX GICv2m
97+ 0x00064 GICv2 0xffff00000916bfd8 * LINEAR GICv2
Here, interrupts 1-5 are only using a single domain, while 96 and 97
are build out of a stack of three domain, each level performing a
particular function.
Most of the internals of the IRQ subsystem are exposed in debugfs by
turning CONFIG_GENERIC_IRQ_DEBUGFS on.
Documentation/RCU/Design/Data-Structures/Data-Structures.html
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......@@ -1097,7 +1097,8 @@ will cause the CPU to disregard the values of its counters on
its next exit from idle.
Finally, the <tt>rcu_qs_ctr_snap</tt> field is used to detect
cases where a given operation has resulted in a quiescent state
for all flavors of RCU, for example, <tt>cond_resched_rcu_qs()</tt>.
for all flavors of RCU, for example, <tt>cond_resched()</tt>
when RCU has indicated a need for quiescent states.
<h5>RCU Callback Handling</h5>
......@@ -1182,8 +1183,8 @@ CPU (and from tracing) unless otherwise stated.
Its fields are as follows:
<pre>
1 int dynticks_nesting;
2 int dynticks_nmi_nesting;
1 long dynticks_nesting;
2 long dynticks_nmi_nesting;
3 atomic_t dynticks;
4 bool rcu_need_heavy_qs;
5 unsigned long rcu_qs_ctr;
......@@ -1191,15 +1192,31 @@ Its fields are as follows:
</pre>
<p>The <tt>-&gt;dynticks_nesting</tt> field counts the
nesting depth of normal interrupts.
In addition, this counter is incremented when exiting dyntick-idle
mode and decremented when entering it.
nesting depth of process execution, so that in normal circumstances
this counter has value zero or one.
NMIs, irqs, and tracers are counted by the <tt>-&gt;dynticks_nmi_nesting</tt>
field.
Because NMIs cannot be masked, changes to this variable have to be
undertaken carefully using an algorithm provided by Andy Lutomirski.
The initial transition from idle adds one, and nested transitions
add two, so that a nesting level of five is represented by a
<tt>-&gt;dynticks_nmi_nesting</tt> value of nine.
This counter can therefore be thought of as counting the number
of reasons why this CPU cannot be permitted to enter dyntick-idle
mode, aside from non-maskable interrupts (NMIs).
NMIs are counted by the <tt>-&gt;dynticks_nmi_nesting</tt>
field, except that NMIs that interrupt non-dyntick-idle execution
are not counted.
mode, aside from process-level transitions.
<p>However, it turns out that when running in non-idle kernel context,
the Linux kernel is fully capable of entering interrupt handlers that
never exit and perhaps also vice versa.
Therefore, whenever the <tt>-&gt;dynticks_nesting</tt> field is
incremented up from zero, the <tt>-&gt;dynticks_nmi_nesting</tt> field
is set to a large positive number, and whenever the
<tt>-&gt;dynticks_nesting</tt> field is decremented down to zero,
the the <tt>-&gt;dynticks_nmi_nesting</tt> field is set to zero.
Assuming that the number of misnested interrupts is not sufficient
to overflow the counter, this approach corrects the
<tt>-&gt;dynticks_nmi_nesting</tt> field every time the corresponding
CPU enters the idle loop from process context.
</p><p>The <tt>-&gt;dynticks</tt> field counts the corresponding
CPU's transitions to and from dyntick-idle mode, so that this counter
......@@ -1231,14 +1248,16 @@ in response.
<tr><th>&nbsp;</th></tr>
<tr><th align="left">Quick Quiz:</th></tr>
<tr><td>
Why not just count all NMIs?
Wouldn't that be simpler and less error prone?
Why not simply combine the <tt>-&gt;dynticks_nesting</tt>
and <tt>-&gt;dynticks_nmi_nesting</tt> counters into a
single counter that just counts the number of reasons that
the corresponding CPU is non-idle?
</td></tr>
<tr><th align="left">Answer:</th></tr>
<tr><td bgcolor="#ffffff"><font color="ffffff">
It seems simpler only until you think hard about how to go about
updating the <tt>rcu_dynticks</tt> structure's
<tt>-&gt;dynticks</tt> field.
Because this would fail in the presence of interrupts whose
handlers never return and of handlers that manage to return
from a made-up interrupt.
</font></td></tr>
<tr><td>&nbsp;</td></tr>
</table>
......
Documentation/RCU/Design/Requirements/Requirements.html
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......@@ -581,7 +581,8 @@ This guarantee was only partially premeditated.
DYNIX/ptx used an explicit memory barrier for publication, but had nothing
resembling <tt>rcu_dereference()</tt> for subscription, nor did it
have anything resembling the <tt>smp_read_barrier_depends()</tt>
that was later subsumed into <tt>rcu_dereference()</tt>.
that was later subsumed into <tt>rcu_dereference()</tt> and later
still into <tt>READ_ONCE()</tt>.
The need for these operations made itself known quite suddenly at a
late-1990s meeting with the DEC Alpha architects, back in the days when
DEC was still a free-standing company.
......@@ -2797,7 +2798,7 @@ RCU must avoid degrading real-time response for CPU-bound threads, whether
executing in usermode (which is one use case for
<tt>CONFIG_NO_HZ_FULL=y</tt>) or in the kernel.
That said, CPU-bound loops in the kernel must execute
<tt>cond_resched_rcu_qs()</tt> at least once per few tens of milliseconds
<tt>cond_resched()</tt> at least once per few tens of milliseconds
in order to avoid receiving an IPI from RCU.
<p>
......@@ -3128,7 +3129,7 @@ The solution, in the form of
is to have implicit
read-side critical sections that are delimited by voluntary context
switches, that is, calls to <tt>schedule()</tt>,
<tt>cond_resched_rcu_qs()</tt>, and
<tt>cond_resched()</tt>, and
<tt>synchronize_rcu_tasks()</tt>.
In addition, transitions to and from userspace execution also delimit
tasks-RCU read-side critical sections.
......
Documentation/RCU/rcu_dereference.txt
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......@@ -122,11 +122,7 @@ o Be very careful about comparing pointers obtained from
Note that if checks for being within an RCU read-side
critical section are not required and the pointer is never
dereferenced, rcu_access_pointer() should be used in place
of rcu_dereference(). The rcu_access_pointer() primitive
does not require an enclosing read-side critical section,
and also omits the smp_read_barrier_depends() included in
rcu_dereference(), which in turn should provide a small
performance gain in some CPUs (e.g., the DEC Alpha).
of rcu_dereference().
o The comparison is against a pointer that references memory
that was initialized "a long time ago." The reason
......
Documentation/RCU/stallwarn.txt
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......@@ -23,12 +23,10 @@ o A CPU looping with preemption disabled. This condition can
o A CPU looping with bottom halves disabled. This condition can
result in RCU-sched and RCU-bh stalls.
o For !CONFIG_PREEMPT kernels, a CPU looping anywhere in the
kernel without invoking schedule(). Note that cond_resched()
does not necessarily prevent RCU CPU stall warnings. Therefore,
if the looping in the kernel is really expected and desirable
behavior, you might need to replace some of the cond_resched()
calls with calls to cond_resched_rcu_qs().
o For !CONFIG_PREEMPT kernels, a CPU looping anywhere in the kernel
without invoking schedule(). If the looping in the kernel is
really expected and desirable behavior, you might need to add
some calls to cond_resched().
o Booting Linux using a console connection that is too slow to
keep up with the boot-time console-message rate. For example,
......
Documentation/RCU/whatisRCU.txt
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......@@ -600,8 +600,7 @@ don't forget about them when submitting patches making use of RCU!]
#define rcu_dereference(p) \
({ \
typeof(p) _________p1 = p; \
smp_read_barrier_depends(); \
typeof(p) _________p1 = READ_ONCE(p); \
(_________p1); \
})
......
Documentation/admin-guide/kernel-parameters.rst
浏览文件 @ 7bf14c28
......@@ -109,6 +109,7 @@ parameter is applicable::
IPV6 IPv6 support is enabled.
ISAPNP ISA PnP code is enabled.
ISDN Appropriate ISDN support is enabled.
ISOL CPU Isolation is enabled.
JOY Appropriate joystick support is enabled.
KGDB Kernel debugger support is enabled.
KVM Kernel Virtual Machine support is enabled.
......
Documentation/admin-guide/kernel-parameters.txt
浏览文件 @ 7bf14c28
......@@ -114,7 +114,6 @@
This facility can be used to prevent such uncontrolled
GPE floodings.
Format: <int>
Support masking of GPEs numbered from 0x00 to 0x7f.
acpi_no_auto_serialize [HW,ACPI]
Disable auto-serialization of AML methods
......@@ -223,7 +222,7 @@
acpi_sleep= [HW,ACPI] Sleep options
Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
old_ordering, nonvs, sci_force_enable }
old_ordering, nonvs, sci_force_enable, nobl }
See Documentation/power/video.txt for information on
s3_bios and s3_mode.
s3_beep is for debugging; it makes the PC's speaker beep
......@@ -239,6 +238,9 @@
sci_force_enable causes the kernel to set SCI_EN directly
on resume from S1/S3 (which is against the ACPI spec,
but some broken systems don't work without it).
nobl causes the internal blacklist of systems known to
behave incorrectly in some ways with respect to system
suspend and resume to be ignored (use wisely).
acpi_use_timer_override [HW,ACPI]
Use timer override. For some broken Nvidia NF5 boards
......@@ -328,11 +330,15 @@
not play well with APC CPU idle - disable it if you have
APC and your system crashes randomly.
apic= [APIC,X86-32] Advanced Programmable Interrupt Controller
apic= [APIC,X86] Advanced Programmable Interrupt Controller
Change the output verbosity whilst booting
Format: { quiet (default) | verbose | debug }
Change the amount of debugging information output
when initialising the APIC and IO-APIC components.
For X86-32, this can also be used to specify an APIC
driver name.
Format: apic=driver_name
Examples: apic=bigsmp
apic_extnmi= [APIC,X86] External NMI delivery setting
Format: { bsp (default) | all | none }
......@@ -709,9 +715,6 @@
It will be ignored when crashkernel=X,high is not used
or memory reserved is below 4G.
crossrelease_fullstack
[KNL] Allow to record full stack trace in cross-release
cryptomgr.notests
[KNL] Disable crypto self-tests
......@@ -1737,7 +1740,7 @@
isapnp= [ISAPNP]
Format: <RDP>,<reset>,<pci_scan>,<verbosity>
isolcpus= [KNL,SMP] Isolate a given set of CPUs from disturbance.
isolcpus= [KNL,SMP,ISOL] Isolate a given set of CPUs from disturbance.
[Deprecated - use cpusets instead]
Format: [flag-list,]<cpu-list>
......@@ -2049,9 +2052,6 @@
This tests the locking primitive's ability to
transition abruptly to and from idle.
locktorture.torture_runnable= [BOOT]
Start locktorture running at boot time.
locktorture.torture_type= [KNL]
Specify the locking implementation to test.
......@@ -2622,6 +2622,11 @@
nosmt [KNL,S390] Disable symmetric multithreading (SMT).
Equivalent to smt=1.
nospectre_v2 [X86] Disable all mitigations for the Spectre variant 2
(indirect branch prediction) vulnerability. System may
allow data leaks with this option, which is equivalent
to spectre_v2=off.
noxsave [BUGS=X86] Disables x86 extended register state save
and restore using xsave. The kernel will fallback to
enabling legacy floating-point and sse state.
......@@ -2662,7 +2667,7 @@
Valid arguments: on, off
Default: on
nohz_full= [KNL,BOOT]
nohz_full= [KNL,BOOT,SMP,ISOL]
The argument is a cpu list, as described above.
In kernels built with CONFIG_NO_HZ_FULL=y, set
the specified list of CPUs whose tick will be stopped
......@@ -3094,6 +3099,12 @@
pcie_scan_all Scan all possible PCIe devices. Otherwise we
only look for one device below a PCIe downstream
port.
big_root_window Try to add a big 64bit memory window to the PCIe
root complex on AMD CPUs. Some GFX hardware
can resize a BAR to allow access to all VRAM.
Adding the window is slightly risky (it may
conflict with unreported devices), so this
taints the kernel.
pcie_aspm= [PCIE] Forcibly enable or disable PCIe Active State Power
Management.
......@@ -3282,6 +3293,21 @@
pt. [PARIDE]
See Documentation/blockdev/paride.txt.
pti= [X86_64] Control Page Table Isolation of user and
kernel address spaces. Disabling this feature
removes hardening, but improves performance of
system calls and interrupts.
on - unconditionally enable
off - unconditionally disable
auto - kernel detects whether your CPU model is
vulnerable to issues that PTI mitigates
Not specifying this option is equivalent to pti=auto.
nopti [X86_64]
Equivalent to pti=off
pty.legacy_count=
[KNL] Number of legacy pty's. Overwrites compiled-in
default number.
......@@ -3459,9 +3485,6 @@
the same as for rcuperf.nreaders.
N, where N is the number of CPUs
rcuperf.perf_runnable= [BOOT]
Start rcuperf running at boot time.
rcuperf.perf_type= [KNL]
Specify the RCU implementation to test.
......@@ -3595,9 +3618,6 @@
Test RCU's dyntick-idle handling. See also the
rcutorture.shuffle_interval parameter.
rcutorture.torture_runnable= [BOOT]
Start rcutorture running at boot time.
rcutorture.torture_type= [KNL]
Specify the RCU implementation to test.
......@@ -3655,7 +3675,8 @@
rdt= [HW,X86,RDT]
Turn on/off individual RDT features. List is:
cmt, mbmtotal, mbmlocal, l3cat, l3cdp, l2cat, mba.
cmt, mbmtotal, mbmlocal, l3cat, l3cdp, l2cat, l2cdp,
mba.
E.g. to turn on cmt and turn off mba use:
rdt=cmt,!mba
......@@ -3931,6 +3952,29 @@
sonypi.*= [HW] Sony Programmable I/O Control Device driver
See Documentation/laptops/sonypi.txt
spectre_v2= [X86] Control mitigation of Spectre variant 2
(indirect branch speculation) vulnerability.
on - unconditionally enable
off - unconditionally disable
auto - kernel detects whether your CPU model is
vulnerable
Selecting 'on' will, and 'auto' may, choose a
mitigation method at run time according to the
CPU, the available microcode, the setting of the
CONFIG_RETPOLINE configuration option, and the
compiler with which the kernel was built.
Specific mitigations can also be selected manually:
retpoline - replace indirect branches
retpoline,generic - google's original retpoline
retpoline,amd - AMD-specific minimal thunk
Not specifying this option is equivalent to
spectre_v2=auto.
spia_io_base= [HW,MTD]
spia_fio_base=
spia_pedr=
......
Documentation/admin-guide/thunderbolt.rst
浏览文件 @ 7bf14c28
......@@ -230,7 +230,7 @@ If supported by your machine this will be exposed by the WMI bus with
a sysfs attribute called "force_power".
For example the intel-wmi-thunderbolt driver exposes this attribute in:
/sys/devices/platform/PNP0C14:00/wmi_bus/wmi_bus-PNP0C14:00/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power
/sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power
To force the power to on, write 1 to this attribute file.
To disable force power, write 0 to this attribute file.
......
Documentation/arm64/silicon-errata.txt
浏览文件 @ 7bf14c28
......@@ -75,3 +75,4 @@ stable kernels.
| Qualcomm Tech. | Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 |
| Qualcomm Tech. | Falkor v1 | E1009 | QCOM_FALKOR_ERRATUM_1009 |
| Qualcomm Tech. | QDF2400 ITS | E0065 | QCOM_QDF2400_ERRATUM_0065 |
| Qualcomm Tech. | Falkor v{1,2} | E1041 | QCOM_FALKOR_ERRATUM_1041 |
Documentation/cgroup-v2.txt
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......@@ -898,6 +898,13 @@ controller implements weight and absolute bandwidth limit models for
normal scheduling policy and absolute bandwidth allocation model for
realtime scheduling policy.
WARNING: cgroup2 doesn't yet support control of realtime processes and
the cpu controller can only be enabled when all RT processes are in
the root cgroup. Be aware that system management software may already
have placed RT processes into nonroot cgroups during the system boot
process, and these processes may need to be moved to the root cgroup
before the cpu controller can be enabled.
CPU Interface Files
~~~~~~~~~~~~~~~~~~~
......
Documentation/circular-buffers.txt
浏览文件 @ 7bf14c28
......@@ -220,8 +220,7 @@ before it writes the new tail pointer, which will erase the item.
Note the use of READ_ONCE() and smp_load_acquire() to read the
opposition index. This prevents the compiler from discarding and
reloading its cached value - which some compilers will do across
smp_read_barrier_depends(). This isn't strictly needed if you can
reloading its cached value. This isn't strictly needed if you can
be sure that the opposition index will _only_ be used the once.
The smp_load_acquire() additionally forces the CPU to order against
subsequent memory references. Similarly, smp_store_release() is used
......
Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
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......@@ -14,3 +14,22 @@ following property before the previous one:
Example:
compatible = "marvell,armada-3720-db", "marvell,armada3720", "marvell,armada3710";
Power management
----------------
For power management (particularly DVFS and AVS), the North Bridge
Power Management component is needed:
Required properties:
- compatible : should contain "marvell,armada-3700-nb-pm", "syscon";
- reg : the register start and length for the North Bridge
Power Management
Example:
nb_pm: syscon@14000 {
compatible = "marvell,armada-3700-nb-pm", "syscon";
reg = <0x14000 0x60>;
}
Documentation/devicetree/bindings/hwmon/aspeed-pwm-tacho.txt
浏览文件 @ 7bf14c28
......@@ -22,8 +22,9 @@ Required properties for pwm-tacho node:
- compatible : should be "aspeed,ast2400-pwm-tacho" for AST2400 and
"aspeed,ast2500-pwm-tacho" for AST2500.
- clocks : a fixed clock providing input clock frequency(PWM
and Fan Tach clock)
- clocks : phandle to clock provider with the clock number in the second cell
- resets : phandle to reset controller with the reset number in the second cell
fan subnode format:
===================
......@@ -48,19 +49,14 @@ Required properties for each child node:
Examples:
pwm_tacho_fixed_clk: fixedclk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <24000000>;
};
pwm_tacho: pwmtachocontroller@1e786000 {
#address-cells = <1>;
#size-cells = <1>;
#cooling-cells = <2>;
reg = <0x1E786000 0x1000>;
compatible = "aspeed,ast2500-pwm-tacho";
clocks = <&pwm_tacho_fixed_clk>;
clocks = <&syscon ASPEED_CLK_APB>;
resets = <&syscon ASPEED_RESET_PWM>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm0_default &pinctrl_pwm1_default>;
......
Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt 0 → 100644
浏览文件 @ 7bf14c28
Device-Tree bindings for sigma delta modulator
Required properties:
- compatible: should be "ads1201", "sd-modulator". "sd-modulator" can be use
as a generic SD modulator if modulator not specified in compatible list.
- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers".
Example node:
ads1202: adc@0 {
compatible = "sd-modulator";
#io-channel-cells = <1>;
};
Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt 0 → 100644
浏览文件 @ 7bf14c28
STMicroelectronics STM32 DFSDM ADC device driver
STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
interface external sigma delta modulators to STM32 micro controllers.
It is mainly targeted for:
- Sigma delta modulators (motor control, metering...)
- PDM microphones (audio digital microphone)
It features up to 8 serial digital interfaces (SPI or Manchester) and
up to 4 filters on stm32h7.
Each child node match with a filter instance.
Contents of a STM32 DFSDM root node:
------------------------------------
Required properties:
- compatible: Should be "st,stm32h7-dfsdm".
- reg: Offset and length of the DFSDM block register set.
- clocks: IP and serial interfaces clocking. Should be set according
to rcc clock ID and "clock-names".
- clock-names: Input clock name "dfsdm" must be defined,
"audio" is optional. If defined CLKOUT is based on the audio
clock, else "dfsdm" is used.
- #interrupt-cells = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
Optional properties:
- spi-max-frequency: Requested only for SPI master mode.
SPI clock OUT frequency (Hz). This clock must be set according
to "clock" property. Frequency must be a multiple of the rcc
clock frequency. If not, SPI CLKOUT frequency will not be
accurate.
Contents of a STM32 DFSDM child nodes:
--------------------------------------
Required properties:
- compatible: Must be:
"st,stm32-dfsdm-adc" for sigma delta ADCs
"st,stm32-dfsdm-dmic" for audio digital microphone.
- reg: Specifies the DFSDM filter instance used.
- interrupts: IRQ lines connected to each DFSDM filter instance.
- st,adc-channels: List of single-ended channels muxed for this ADC.
valid values:
"st,stm32h7-dfsdm" compatibility: 0 to 7.
- st,adc-channel-names: List of single-ended channel names.
- st,filter-order: SinC filter order from 0 to 5.
0: FastSinC
[1-5]: order 1 to 5.
For audio purpose it is recommended to use order 3 to 5.
- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers".
Required properties for "st,stm32-dfsdm-adc" compatibility:
- io-channels: From common IIO binding. Used to pipe external sigma delta
modulator or internal ADC output to DFSDM channel.
This is not required for "st,stm32-dfsdm-pdm" compatibility as
PDM microphone is binded in Audio DT node.
Required properties for "st,stm32-dfsdm-pdm" compatibility:
- #sound-dai-cells: Must be set to 0.
- dma: DMA controller phandle and DMA request line associated to the
filter instance (specified by the field "reg")
- dma-names: Must be "rx"
Optional properties:
- st,adc-channel-types: Single-ended channel input type.
- "SPI_R": SPI with data on rising edge (default)
- "SPI_F": SPI with data on falling edge
- "MANCH_R": manchester codec, rising edge = logic 0
- "MANCH_F": manchester codec, falling edge = logic 1
- st,adc-channel-clk-src: Conversion clock source.
- "CLKIN": external SPI clock (CLKIN x)
- "CLKOUT": internal SPI clock (CLKOUT) (default)
- "CLKOUT_F": internal SPI clock divided by 2 (falling edge).
- "CLKOUT_R": internal SPI clock divided by 2 (rising edge).
- st,adc-alt-channel: Must be defined if two sigma delta modulator are
connected on same SPI input.
If not set, channel n is connected to SPI input n.
If set, channel n is connected to SPI input n + 1.
- st,filter0-sync: Set to 1 to synchronize with DFSDM filter instance 0.
Used for multi microphones synchronization.
Example of a sigma delta adc connected on DFSDM SPI port 0
and a pdm microphone connected on DFSDM SPI port 1:
ads1202: simple_sd_adc@0 {
compatible = "ads1202";
#io-channel-cells = <1>;
};
dfsdm: dfsdm@40017000 {
compatible = "st,stm32h7-dfsdm";
reg = <0x40017000 0x400>;
clocks = <&rcc DFSDM1_CK>;
clock-names = "dfsdm";
#interrupt-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
dfsdm_adc0: filter@0 {
compatible = "st,stm32-dfsdm-adc";
#io-channel-cells = <1>;
reg = <0>;
interrupts = <110>;
st,adc-channels = <0>;
st,adc-channel-names = "sd_adc0";
st,adc-channel-types = "SPI_F";
st,adc-channel-clk-src = "CLKOUT";
io-channels = <&ads1202 0>;
st,filter-order = <3>;
};
dfsdm_pdm1: filter@1 {
compatible = "st,stm32-dfsdm-dmic";
reg = <1>;
interrupts = <111>;
dmas = <&dmamux1 102 0x400 0x00>;
dma-names = "rx";
st,adc-channels = <1>;
st,adc-channel-names = "dmic1";
st,adc-channel-types = "SPI_R";
st,adc-channel-clk-src = "CLKOUT";
st,filter-order = <5>;
};
}
Documentation/devicetree/bindings/interrupt-controller/brcm,bcm2836-l1-intc.txt
浏览文件 @ 7bf14c28
......@@ -12,7 +12,7 @@ Required properties:
registers
- interrupt-controller: Identifies the node as an interrupt controller
- #interrupt-cells: Specifies the number of cells needed to encode an
interrupt source. The value shall be 1
interrupt source. The value shall be 2
Please refer to interrupts.txt in this directory for details of the common
Interrupt Controllers bindings used by client devices.
......@@ -32,6 +32,6 @@ local_intc: local_intc {
compatible = "brcm,bcm2836-l1-intc";
reg = <0x40000000 0x100>;
interrupt-controller;
#interrupt-cells = <1>;
#interrupt-cells = <2>;
interrupt-parent = <&local_intc>;
};
Documentation/devicetree/bindings/interrupt-controller/google,goldfish-pic.txt 0 → 100644
浏览文件 @ 7bf14c28
Android Goldfish PIC
Android Goldfish programmable interrupt device used by Android
emulator.
Required properties:
- compatible : should contain "google,goldfish-pic"
- reg : <registers mapping>
- interrupts : <interrupt mapping>
Example for mips when used in cascade mode:
cpuintc {
#interrupt-cells = <0x1>;
#address-cells = <0>;
interrupt-controller;
compatible = "mti,cpu-interrupt-controller";
};
interrupt-controller@1f000000 {
compatible = "google,goldfish-pic";
reg = <0x1f000000 0x1000>;
interrupt-controller;
#interrupt-cells = <0x1>;
interrupt-parent = <&cpuintc>;
interrupts = <0x2>;
};
Documentation/devicetree/bindings/mfd/mc13xxx.txt
浏览文件 @ 7bf14c28
......@@ -130,7 +130,7 @@ ecspi@70010000 { /* ECSPI1 */
#size-cells = <0>;
led-control = <0x000 0x000 0x0e0 0x000>;
sysled {
sysled@3 {
reg = <3>;
label = "system:red:live";
linux,default-trigger = "heartbeat";
......
Documentation/devicetree/bindings/mfd/syscon.txt
浏览文件 @ 7bf14c28
......@@ -16,9 +16,17 @@ Required properties:
Optional property:
- reg-io-width: the size (in bytes) of the IO accesses that should be
performed on the device.
- hwlocks: reference to a phandle of a hardware spinlock provider node.
Examples:
gpr: iomuxc-gpr@20e0000 {
compatible = "fsl,imx6q-iomuxc-gpr", "syscon";
reg = <0x020e0000 0x38>;
hwlocks = <&hwlock1 1>;
};
hwlock1: hwspinlock@40500000 {
...
reg = <0x40500000 0x1000>;
#hwlock-cells = <1>;
};
Documentation/devicetree/bindings/mmc/mtk-sd.txt
浏览文件 @ 7bf14c28
......@@ -12,6 +12,8 @@ Required properties:
"mediatek,mt8173-mmc": for mmc host ip compatible with mt8173
"mediatek,mt2701-mmc": for mmc host ip compatible with mt2701
"mediatek,mt2712-mmc": for mmc host ip compatible with mt2712
"mediatek,mt7623-mmc", "mediatek,mt2701-mmc": for MT7623 SoC
- reg: physical base address of the controller and length
- interrupts: Should contain MSDC interrupt number
- clocks: Should contain phandle for the clock feeding the MMC controller
......
Documentation/devicetree/bindings/mmc/tmio_mmc.txt
浏览文件 @ 7bf14c28
......@@ -26,6 +26,7 @@ Required properties:
"renesas,sdhi-r8a7794" - SDHI IP on R8A7794 SoC
"renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC
"renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC
"renesas,sdhi-r8a77995" - SDHI IP on R8A77995 SoC
"renesas,sdhi-shmobile" - a generic sh-mobile SDHI controller
"renesas,rcar-gen1-sdhi" - a generic R-Car Gen1 SDHI controller
"renesas,rcar-gen2-sdhi" - a generic R-Car Gen2 or RZ/G1
......
Documentation/devicetree/bindings/mtd/fsl-quadspi.txt
浏览文件 @ 7bf14c28
......@@ -12,7 +12,7 @@ Required properties:
- reg-names: Should contain the reg names "QuadSPI" and "QuadSPI-memory"
- interrupts : Should contain the interrupt for the device
- clocks : The clocks needed by the QuadSPI controller
- clock-names : the name of the clocks
- clock-names : Should contain the name of the clocks: "qspi_en" and "qspi".
Optional properties:
- fsl,qspi-has-second-chip: The controller has two buses, bus A and bus B.
......
Documentation/devicetree/bindings/mtd/gpmc-onenand.txt
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......@@ -9,13 +9,14 @@ Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
Required properties:
- compatible: "ti,omap2-onenand"
- reg: The CS line the peripheral is connected to
- gpmc,device-width Width of the ONENAND device connected to the GPMC
- gpmc,device-width: Width of the ONENAND device connected to the GPMC
in bytes. Must be 1 or 2.
Optional properties:
- dma-channel: DMA Channel index
- int-gpios: GPIO specifier for the INT pin.
For inline partition table parsing (optional):
......@@ -35,6 +36,7 @@ Example for an OMAP3430 board:
#size-cells = <1>;
onenand@0 {
compatible = "ti,omap2-onenand";
reg = <0 0 0>; /* CS0, offset 0 */
gpmc,device-width = <2>;
......
Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt
浏览文件 @ 7bf14c28
......@@ -13,7 +13,6 @@ Required properties:
at25df321a
at25df641
at26df081a
en25s64
mr25h128
mr25h256
mr25h10
......@@ -33,7 +32,6 @@ Required properties:
s25fl008k
s25fl064k
sst25vf040b
sst25wf040b
m25p40
m25p80
m25p16
......
Documentation/devicetree/bindings/mtd/marvell-nand.txt 0 → 100644
浏览文件 @ 7bf14c28
Marvell NAND Flash Controller (NFC)
Required properties:
- compatible: can be one of the following:
* "marvell,armada-8k-nand-controller"
* "marvell,armada370-nand-controller"
* "marvell,pxa3xx-nand-controller"
* "marvell,armada-8k-nand" (deprecated)
* "marvell,armada370-nand" (deprecated)
* "marvell,pxa3xx-nand" (deprecated)
Compatibles marked deprecated support only the old bindings described
at the bottom.
- reg: NAND flash controller memory area.
- #address-cells: shall be set to 1. Encode the NAND CS.
- #size-cells: shall be set to 0.
- interrupts: shall define the NAND controller interrupt.
- clocks: shall reference the NAND controller clock.
- marvell,system-controller: Set to retrieve the syscon node that handles
NAND controller related registers (only required with the
"marvell,armada-8k-nand[-controller]" compatibles).
Optional properties:
- label: see partition.txt. New platforms shall omit this property.
- dmas: shall reference DMA channel associated to the NAND controller.
This property is only used with "marvell,pxa3xx-nand[-controller]"
compatible strings.
- dma-names: shall be "rxtx".
This property is only used with "marvell,pxa3xx-nand[-controller]"
compatible strings.
Optional children nodes:
Children nodes represent the available NAND chips.
Required properties:
- reg: shall contain the native Chip Select ids (0-3).
- nand-rb: see nand.txt (0-1).
Optional properties:
- marvell,nand-keep-config: orders the driver not to take the timings
from the core and leaving them completely untouched. Bootloader
timings will then be used.
- label: MTD name.
- nand-on-flash-bbt: see nand.txt.
- nand-ecc-mode: see nand.txt. Will use hardware ECC if not specified.
- nand-ecc-algo: see nand.txt. This property is essentially useful when
not using hardware ECC. Howerver, it may be added when using hardware
ECC for clarification but will be ignored by the driver because ECC
mode is chosen depending on the page size and the strength required by
the NAND chip. This value may be overwritten with nand-ecc-strength
property.
- nand-ecc-strength: see nand.txt.
- nand-ecc-step-size: see nand.txt. Marvell's NAND flash controller does
use fixed strength (1-bit for Hamming, 16-bit for BCH), so the actual
step size will shrink or grow in order to fit the required strength.
Step sizes are not completely random for all and follow certain
patterns described in AN-379, "Marvell SoC NFC ECC".
See Documentation/devicetree/bindings/mtd/nand.txt for more details on
generic bindings.
Example:
nand_controller: nand-controller@d0000 {
compatible = "marvell,armada370-nand-controller";
reg = <0xd0000 0x54>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&coredivclk 0>;
nand@0 {
reg = <0>;
label = "main-storage";
nand-rb = <0>;
nand-ecc-mode = "hw";
marvell,nand-keep-config;
nand-on-flash-bbt;
nand-ecc-strength = <4>;
nand-ecc-step-size = <512>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "Rootfs";
reg = <0x00000000 0x40000000>;
};
};
};
};
Note on legacy bindings: One can find, in not-updated device trees,
bindings slightly different than described above with other properties
described below as well as the partitions node at the root of a so
called "nand" node (without clear controller/chip separation).
Legacy properties:
- marvell,nand-enable-arbiter: To enable the arbiter, all boards blindly
used it, this bit was set by the bootloader for many boards and even if
it is marked reserved in several datasheets, it might be needed to set
it (otherwise it is harmless) so whether or not this property is set,
the bit is selected by the driver.
- num-cs: Number of chip-select lines to use, all boards blindly set 1
to this and for a reason, other values would have failed. The value of
this property is ignored.
Example:
nand0: nand@43100000 {
compatible = "marvell,pxa3xx-nand";
reg = <0x43100000 90>;
interrupts = <45>;
dmas = <&pdma 97 0>;
dma-names = "rxtx";
#address-cells = <1>;
marvell,nand-keep-config;
marvell,nand-enable-arbiter;
num-cs = <1>;
/* Partitions (optional) */
};
Documentation/devicetree/bindings/mtd/mtk-nand.txt
浏览文件 @ 7bf14c28
......@@ -12,8 +12,10 @@ tree nodes.
The first part of NFC is NAND Controller Interface (NFI) HW.
Required NFI properties:
- compatible: Should be one of "mediatek,mt2701-nfc",
"mediatek,mt2712-nfc".
- compatible: Should be one of
"mediatek,mt2701-nfc",
"mediatek,mt2712-nfc",
"mediatek,mt7622-nfc".
- reg: Base physical address and size of NFI.
- interrupts: Interrupts of NFI.
- clocks: NFI required clocks.
......@@ -142,7 +144,10 @@ Example:
==============
Required BCH properties:
- compatible: Should be one of "mediatek,mt2701-ecc", "mediatek,mt2712-ecc".
- compatible: Should be one of
"mediatek,mt2701-ecc",
"mediatek,mt2712-ecc",
"mediatek,mt7622-ecc".
- reg: Base physical address and size of ECC.
- interrupts: Interrupts of ECC.
- clocks: ECC required clocks.
......
Documentation/devicetree/bindings/mtd/nand.txt
浏览文件 @ 7bf14c28
......@@ -43,6 +43,7 @@ Optional NAND chip properties:
This is particularly useful when only the in-band area is
used by the upper layers, and you want to make your NAND
as reliable as possible.
- nand-rb: shall contain the native Ready/Busy ids.
The ECC strength and ECC step size properties define the correction capability
of a controller. Together, they say a controller can correct "{strength} bit
......
Documentation/devicetree/bindings/opp/opp.txt
浏览文件 @ 7bf14c28
......@@ -45,6 +45,11 @@ Devices supporting OPPs must set their "operating-points-v2" property with
phandle to a OPP table in their DT node. The OPP core will use this phandle to
find the operating points for the device.
This can contain more than one phandle for power domain providers that provide
multiple power domains. That is, one phandle for each power domain. If only one
phandle is available, then the same OPP table will be used for all power domains
provided by the power domain provider.
If required, this can be extended for SoC vendor specific bindings. Such bindings
should be documented as Documentation/devicetree/bindings/power/<vendor>-opp.txt
and should have a compatible description like: "operating-points-v2-<vendor>".
......@@ -154,6 +159,14 @@ Optional properties:
- status: Marks the node enabled/disabled.
- required-opp: This contains phandle to an OPP node in another device's OPP
table. It may contain an array of phandles, where each phandle points to an
OPP of a different device. It should not contain multiple phandles to the OPP
nodes in the same OPP table. This specifies the minimum required OPP of the
device(s), whose OPP's phandle is present in this property, for the
functioning of the current device at the current OPP (where this property is
present).
Example 1: Single cluster Dual-core ARM cortex A9, switch DVFS states together.
/ {
......
Documentation/devicetree/bindings/opp/ti-omap5-opp-supply.txt 0 → 100644
浏览文件 @ 7bf14c28
Texas Instruments OMAP compatible OPP supply description
OMAP5, DRA7, and AM57 family of SoCs have Class0 AVS eFuse registers which
contain data that can be used to adjust voltages programmed for some of their
supplies for more efficient operation. This binding provides the information
needed to read these values and use them to program the main regulator during
an OPP transitions.
Also, some supplies may have an associated vbb-supply which is an Adaptive Body
Bias regulator which much be transitioned in a specific sequence with regards
to the vdd-supply and clk when making an OPP transition. By supplying two
regulators to the device that will undergo OPP transitions we can make use
of the multi regulator binding that is part of the OPP core described here [1]
to describe both regulators needed by the platform.
[1] Documentation/devicetree/bindings/opp/opp.txt
Required Properties for Device Node:
- vdd-supply: phandle to regulator controlling VDD supply
- vbb-supply: phandle to regulator controlling Body Bias supply
(Usually Adaptive Body Bias regulator)
Required Properties for opp-supply node:
- compatible: Should be one of:
"ti,omap-opp-supply" - basic OPP supply controlling VDD and VBB
"ti,omap5-opp-supply" - OMAP5+ optimized voltages in efuse(class0)VDD
along with VBB
"ti,omap5-core-opp-supply" - OMAP5+ optimized voltages in efuse(class0) VDD
but no VBB.
- reg: Address and length of the efuse register set for the device (mandatory
only for "ti,omap5-opp-supply")
- ti,efuse-settings: An array of u32 tuple items providing information about
optimized efuse configuration. Each item consists of the following:
volt: voltage in uV - reference voltage (OPP voltage)
efuse_offseet: efuse offset from reg where the optimized voltage is stored.
- ti,absolute-max-voltage-uv: absolute maximum voltage for the OPP supply.
Example:
/* Device Node (CPU) */
cpus {
cpu0: cpu@0 {
device_type = "cpu";
...
vdd-supply = <&vcc>;
vbb-supply = <&abb_mpu>;
};
};
/* OMAP OPP Supply with Class0 registers */
opp_supply_mpu: opp_supply@4a003b20 {
compatible = "ti,omap5-opp-supply";
reg = <0x4a003b20 0x8>;
ti,efuse-settings = <
/* uV offset */
1060000 0x0
1160000 0x4
1210000 0x8
>;
ti,absolute-max-voltage-uv = <1500000>;
};
Documentation/devicetree/bindings/power/power_domain.txt
浏览文件 @ 7bf14c28
......@@ -40,6 +40,12 @@ Optional properties:
domain's idle states. In the absence of this property, the domain would be
considered as capable of being powered-on or powered-off.
- operating-points-v2 : Phandles to the OPP tables of power domains provided by
a power domain provider. If the provider provides a single power domain only
or all the power domains provided by the provider have identical OPP tables,
then this shall contain a single phandle. Refer to ../opp/opp.txt for more
information.
Example:
power: power-controller@12340000 {
......@@ -120,4 +126,63 @@ The node above defines a typical PM domain consumer device, which is located
inside a PM domain with index 0 of a power controller represented by a node
with the label "power".
Optional properties:
- required-opp: This contains phandle to an OPP node in another device's OPP
table. It may contain an array of phandles, where each phandle points to an
OPP of a different device. It should not contain multiple phandles to the OPP
nodes in the same OPP table. This specifies the minimum required OPP of the
device(s), whose OPP's phandle is present in this property, for the
functioning of the current device at the current OPP (where this property is
present).
Example:
- OPP table for domain provider that provides two domains.
domain0_opp_table: opp-table0 {
compatible = "operating-points-v2";
domain0_opp_0: opp-1000000000 {
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <975000 970000 985000>;
};
domain0_opp_1: opp-1100000000 {
opp-hz = /bits/ 64 <1100000000>;
opp-microvolt = <1000000 980000 1010000>;
};
};
domain1_opp_table: opp-table1 {
compatible = "operating-points-v2";
domain1_opp_0: opp-1200000000 {
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <975000 970000 985000>;
};
domain1_opp_1: opp-1300000000 {
opp-hz = /bits/ 64 <1300000000>;
opp-microvolt = <1000000 980000 1010000>;
};
};
power: power-controller@12340000 {
compatible = "foo,power-controller";
reg = <0x12340000 0x1000>;
#power-domain-cells = <1>;
operating-points-v2 = <&domain0_opp_table>, <&domain1_opp_table>;
};
leaky-device0@12350000 {
compatible = "foo,i-leak-current";
reg = <0x12350000 0x1000>;
power-domains = <&power 0>;
required-opp = <&domain0_opp_0>;
};
leaky-device1@12350000 {
compatible = "foo,i-leak-current";
reg = <0x12350000 0x1000>;
power-domains = <&power 1>;
required-opp = <&domain1_opp_1>;
};
[1]. Documentation/devicetree/bindings/power/domain-idle-state.txt
Documentation/devicetree/bindings/regulator/regulator.txt
浏览文件 @ 7bf14c28
......@@ -42,8 +42,16 @@ Optional properties:
- regulator-state-[mem/disk] node has following common properties:
- regulator-on-in-suspend: regulator should be on in suspend state.
- regulator-off-in-suspend: regulator should be off in suspend state.
- regulator-suspend-microvolt: regulator should be set to this voltage
in suspend.
- regulator-suspend-min-microvolt: minimum voltage may be set in
suspend state.
- regulator-suspend-max-microvolt: maximum voltage may be set in
suspend state.
- regulator-suspend-microvolt: the default voltage which regulator
would be set in suspend. This property is now deprecated, instead
setting voltage for suspend mode via the API which regulator
driver provides is recommended.
- regulator-changeable-in-suspend: whether the default voltage and
the regulator on/off in suspend can be changed in runtime.
- regulator-mode: operating mode in the given suspend state.
The set of possible operating modes depends on the capabilities of
every hardware so the valid modes are documented on each regulator
......
Documentation/devicetree/bindings/regulator/sprd,sc2731-regulator.txt 0 → 100644
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Spreadtrum SC2731 Voltage regulators
The SC2731 integrates low-voltage and low quiescent current DCDC/LDO.
14 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have
their own bypass (power-down) control signals. External tantalum or MLCC
ceramic capacitors are recommended to use with these LDOs.
Required properties:
- compatible: should be "sprd,sc27xx-regulator".
List of regulators provided by this controller. It is named according to
its regulator type, BUCK_<name> and LDO_<name>. The definition for each
of these nodes is defined using the standard binding for regulators at
Documentation/devicetree/bindings/regulator/regulator.txt.
The valid names for regulators are:
BUCK:
BUCK_CPU0, BUCK_CPU1, BUCK_RF
LDO:
LDO_CAMA0, LDO_CAMA1, LDO_CAMMOT, LDO_VLDO, LDO_EMMCCORE, LDO_SDCORE,
LDO_SDIO, LDO_WIFIPA, LDO_USB33, LDO_CAMD0, LDO_CAMD1, LDO_CON,
LDO_CAMIO, LDO_SRAM
Example:
regulators {
compatible = "sprd,sc27xx-regulator";
vddarm0: BUCK_CPU0 {
regulator-name = "vddarm0";
regulator-min-microvolt = <400000>;
regulator-max-microvolt = <1996875>;
regulator-ramp-delay = <25000>;
regulator-always-on;
};
vddcama0: LDO_CAMA0 {
regulator-name = "vddcama0";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <3750000>;
regulator-enable-ramp-delay = <100>;
};
...
};
Documentation/devicetree/bindings/sound/da7218.txt
浏览文件 @ 7bf14c28
......@@ -73,7 +73,7 @@ Example:
compatible = "dlg,da7218";
reg = <0x1a>;
interrupt-parent = <&gpio6>;
interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
wakeup-source;
VDD-supply = <&reg_audio>;
......
Documentation/devicetree/bindings/sound/da7219.txt
浏览文件 @ 7bf14c28
......@@ -77,7 +77,7 @@ Example:
reg = <0x1a>;
interrupt-parent = <&gpio6>;
interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
VDD-supply = <&reg_audio>;
VDDMIC-supply = <&reg_audio>;
......
Documentation/devicetree/bindings/sound/dmic.txt
浏览文件 @ 7bf14c28
......@@ -7,10 +7,12 @@ Required properties:
Optional properties:
- dmicen-gpios: GPIO specifier for dmic to control start and stop
- num-channels: Number of microphones on this DAI
Example node:
dmic_codec: dmic@0 {
compatible = "dmic-codec";
dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
num-channels = <1>;
};
Documentation/devicetree/bindings/sound/max98373.txt 0 → 100644
浏览文件 @ 7bf14c28
Maxim Integrated MAX98373 Speaker Amplifier
This device supports I2C.
Required properties:
- compatible : "maxim,max98373"
- reg : the I2C address of the device.
Optional properties:
- maxim,vmon-slot-no : slot number used to send voltage information
or in inteleave mode this will be used as
interleave slot.
slot range : 0 ~ 15, Default : 0
- maxim,imon-slot-no : slot number used to send current information
slot range : 0 ~ 15, Default : 0
- maxim,spkfb-slot-no : slot number used to send speaker feedback information
slot range : 0 ~ 15, Default : 0
- maxim,interleave-mode : For cases where a single combined channel
for the I/V sense data is not sufficient, the device can also be configured
to share a single data output channel on alternating frames.
In this configuration, the current and voltage data will be frame interleaved
on a single output channel.
Boolean, define to enable the interleave mode, Default : false
Example:
codec: max98373@31 {
compatible = "maxim,max98373";
reg = <0x31>;
maxim,vmon-slot-no = <0>;
maxim,imon-slot-no = <1>;
maxim,spkfb-slot-no = <2>;
maxim,interleave-mode;
};
Documentation/devicetree/bindings/sound/mt2701-afe-pcm.txt
浏览文件 @ 7bf14c28
......@@ -2,153 +2,143 @@ Mediatek AFE PCM controller for mt2701
Required properties:
- compatible = "mediatek,mt2701-audio";
- reg: register location and size
- interrupts: should contain AFE and ASYS interrupts
- interrupt-names: should be "afe" and "asys"
- power-domains: should define the power domain
- clocks: Must contain an entry for each entry in clock-names
See ../clocks/clock-bindings.txt for details
- clock-names: should have these clock names:
"infra_sys_audio_clk",
"top_audio_mux1_sel",
"top_audio_mux2_sel",
"top_audio_mux1_div",
"top_audio_mux2_div",
"top_audio_48k_timing",
"top_audio_44k_timing",
"top_audpll_mux_sel",
"top_apll_sel",
"top_aud1_pll_98M",
"top_aud2_pll_90M",
"top_hadds2_pll_98M",
"top_hadds2_pll_294M",
"top_audpll",
"top_audpll_d4",
"top_audpll_d8",
"top_audpll_d16",
"top_audpll_d24",
"top_audintbus_sel",
"clk_26m",
"top_syspll1_d4",
"top_aud_k1_src_sel",
"top_aud_k2_src_sel",
"top_aud_k3_src_sel",
"top_aud_k4_src_sel",
"top_aud_k5_src_sel",
"top_aud_k6_src_sel",
"top_aud_k1_src_div",
"top_aud_k2_src_div",
"top_aud_k3_src_div",
"top_aud_k4_src_div",
"top_aud_k5_src_div",
"top_aud_k6_src_div",
"top_aud_i2s1_mclk",
"top_aud_i2s2_mclk",
"top_aud_i2s3_mclk",
"top_aud_i2s4_mclk",
"top_aud_i2s5_mclk",
"top_aud_i2s6_mclk",
"top_asm_m_sel",
"top_asm_h_sel",
"top_univpll2_d4",
"top_univpll2_d2",
"top_syspll_d5";
"top_audio_a1sys_hp",
"top_audio_a2sys_hp",
"i2s0_src_sel",
"i2s1_src_sel",
"i2s2_src_sel",
"i2s3_src_sel",
"i2s0_src_div",
"i2s1_src_div",
"i2s2_src_div",
"i2s3_src_div",
"i2s0_mclk_en",
"i2s1_mclk_en",
"i2s2_mclk_en",
"i2s3_mclk_en",
"i2so0_hop_ck",
"i2so1_hop_ck",
"i2so2_hop_ck",
"i2so3_hop_ck",
"i2si0_hop_ck",
"i2si1_hop_ck",
"i2si2_hop_ck",
"i2si3_hop_ck",
"asrc0_out_ck",
"asrc1_out_ck",
"asrc2_out_ck",
"asrc3_out_ck",
"audio_afe_pd",
"audio_afe_conn_pd",
"audio_a1sys_pd",
"audio_a2sys_pd",
"audio_mrgif_pd";
- assigned-clocks: list of input clocks and dividers for the audio system.
See ../clocks/clock-bindings.txt for details.
- assigned-clocks-parents: parent of input clocks of assigned clocks.
- assigned-clock-rates: list of clock frequencies of assigned clocks.
Must be a subnode of MediaTek audsys device tree node.
See ../arm/mediatek/mediatek,audsys.txt for details about the parent node.
Example:
afe: mt2701-afe-pcm@11220000 {
compatible = "mediatek,mt2701-audio";
reg = <0 0x11220000 0 0x2000>,
<0 0x112A0000 0 0x20000>;
interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_LOW>,
<GIC_SPI 132 IRQ_TYPE_LEVEL_LOW>;
interrupt-names = "afe", "asys";
power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
clocks = <&infracfg CLK_INFRA_AUDIO>,
<&topckgen CLK_TOP_AUD_MUX1_SEL>,
<&topckgen CLK_TOP_AUD_MUX2_SEL>,
<&topckgen CLK_TOP_AUD_MUX1_DIV>,
<&topckgen CLK_TOP_AUD_MUX2_DIV>,
<&topckgen CLK_TOP_AUD_48K_TIMING>,
<&topckgen CLK_TOP_AUD_44K_TIMING>,
<&topckgen CLK_TOP_AUDPLL_MUX_SEL>,
<&topckgen CLK_TOP_APLL_SEL>,
<&topckgen CLK_TOP_AUD1PLL_98M>,
<&topckgen CLK_TOP_AUD2PLL_90M>,
<&topckgen CLK_TOP_HADDS2PLL_98M>,
<&topckgen CLK_TOP_HADDS2PLL_294M>,
<&topckgen CLK_TOP_AUDPLL>,
<&topckgen CLK_TOP_AUDPLL_D4>,
<&topckgen CLK_TOP_AUDPLL_D8>,
<&topckgen CLK_TOP_AUDPLL_D16>,
<&topckgen CLK_TOP_AUDPLL_D24>,
<&topckgen CLK_TOP_AUDINTBUS_SEL>,
<&clk26m>,
<&topckgen CLK_TOP_SYSPLL1_D4>,
<&topckgen CLK_TOP_AUD_K1_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K2_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K3_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K4_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K5_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K6_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K1_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K2_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K3_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K4_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K5_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K6_SRC_DIV>,
<&topckgen CLK_TOP_AUD_I2S1_MCLK>,
<&topckgen CLK_TOP_AUD_I2S2_MCLK>,
<&topckgen CLK_TOP_AUD_I2S3_MCLK>,
<&topckgen CLK_TOP_AUD_I2S4_MCLK>,
<&topckgen CLK_TOP_AUD_I2S5_MCLK>,
<&topckgen CLK_TOP_AUD_I2S6_MCLK>,
<&topckgen CLK_TOP_ASM_M_SEL>,
<&topckgen CLK_TOP_ASM_H_SEL>,
<&topckgen CLK_TOP_UNIVPLL2_D4>,
<&topckgen CLK_TOP_UNIVPLL2_D2>,
<&topckgen CLK_TOP_SYSPLL_D5>;
audsys: audio-subsystem@11220000 {
compatible = "mediatek,mt2701-audsys", "syscon", "simple-mfd";
...
afe: audio-controller {
compatible = "mediatek,mt2701-audio";
interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_LOW>,
<GIC_SPI 132 IRQ_TYPE_LEVEL_LOW>;
interrupt-names = "afe", "asys";
power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
clocks = <&infracfg CLK_INFRA_AUDIO>,
<&topckgen CLK_TOP_AUD_MUX1_SEL>,
<&topckgen CLK_TOP_AUD_MUX2_SEL>,
<&topckgen CLK_TOP_AUD_48K_TIMING>,
<&topckgen CLK_TOP_AUD_44K_TIMING>,
<&topckgen CLK_TOP_AUD_K1_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K2_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K3_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K4_SRC_SEL>,
<&topckgen CLK_TOP_AUD_K1_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K2_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K3_SRC_DIV>,
<&topckgen CLK_TOP_AUD_K4_SRC_DIV>,
<&topckgen CLK_TOP_AUD_I2S1_MCLK>,
<&topckgen CLK_TOP_AUD_I2S2_MCLK>,
<&topckgen CLK_TOP_AUD_I2S3_MCLK>,
<&topckgen CLK_TOP_AUD_I2S4_MCLK>,
<&audsys CLK_AUD_I2SO1>,
<&audsys CLK_AUD_I2SO2>,
<&audsys CLK_AUD_I2SO3>,
<&audsys CLK_AUD_I2SO4>,
<&audsys CLK_AUD_I2SIN1>,
<&audsys CLK_AUD_I2SIN2>,
<&audsys CLK_AUD_I2SIN3>,
<&audsys CLK_AUD_I2SIN4>,
<&audsys CLK_AUD_ASRCO1>,
<&audsys CLK_AUD_ASRCO2>,
<&audsys CLK_AUD_ASRCO3>,
<&audsys CLK_AUD_ASRCO4>,
<&audsys CLK_AUD_AFE>,
<&audsys CLK_AUD_AFE_CONN>,
<&audsys CLK_AUD_A1SYS>,
<&audsys CLK_AUD_A2SYS>,
<&audsys CLK_AUD_AFE_MRGIF>;
clock-names = "infra_sys_audio_clk",
"top_audio_mux1_sel",
"top_audio_mux2_sel",
"top_audio_a1sys_hp",
"top_audio_a2sys_hp",
"i2s0_src_sel",
"i2s1_src_sel",
"i2s2_src_sel",
"i2s3_src_sel",
"i2s0_src_div",
"i2s1_src_div",
"i2s2_src_div",
"i2s3_src_div",
"i2s0_mclk_en",
"i2s1_mclk_en",
"i2s2_mclk_en",
"i2s3_mclk_en",
"i2so0_hop_ck",
"i2so1_hop_ck",
"i2so2_hop_ck",
"i2so3_hop_ck",
"i2si0_hop_ck",
"i2si1_hop_ck",
"i2si2_hop_ck",
"i2si3_hop_ck",
"asrc0_out_ck",
"asrc1_out_ck",
"asrc2_out_ck",
"asrc3_out_ck",
"audio_afe_pd",
"audio_afe_conn_pd",
"audio_a1sys_pd",
"audio_a2sys_pd",
"audio_mrgif_pd";
clock-names = "infra_sys_audio_clk",
"top_audio_mux1_sel",
"top_audio_mux2_sel",
"top_audio_mux1_div",
"top_audio_mux2_div",
"top_audio_48k_timing",
"top_audio_44k_timing",
"top_audpll_mux_sel",
"top_apll_sel",
"top_aud1_pll_98M",
"top_aud2_pll_90M",
"top_hadds2_pll_98M",
"top_hadds2_pll_294M",
"top_audpll",
"top_audpll_d4",
"top_audpll_d8",
"top_audpll_d16",
"top_audpll_d24",
"top_audintbus_sel",
"clk_26m",
"top_syspll1_d4",
"top_aud_k1_src_sel",
"top_aud_k2_src_sel",
"top_aud_k3_src_sel",
"top_aud_k4_src_sel",
"top_aud_k5_src_sel",
"top_aud_k6_src_sel",
"top_aud_k1_src_div",
"top_aud_k2_src_div",
"top_aud_k3_src_div",
"top_aud_k4_src_div",
"top_aud_k5_src_div",
"top_aud_k6_src_div",
"top_aud_i2s1_mclk",
"top_aud_i2s2_mclk",
"top_aud_i2s3_mclk",
"top_aud_i2s4_mclk",
"top_aud_i2s5_mclk",
"top_aud_i2s6_mclk",
"top_asm_m_sel",
"top_asm_h_sel",
"top_univpll2_d4",
"top_univpll2_d2",
"top_syspll_d5";
assigned-clocks = <&topckgen CLK_TOP_AUD_MUX1_SEL>,
<&topckgen CLK_TOP_AUD_MUX2_SEL>,
<&topckgen CLK_TOP_AUD_MUX1_DIV>,
<&topckgen CLK_TOP_AUD_MUX2_DIV>;
assigned-clock-parents = <&topckgen CLK_TOP_AUD1PLL_98M>,
<&topckgen CLK_TOP_AUD2PLL_90M>;
assigned-clock-rates = <0>, <0>, <49152000>, <45158400>;
};
};
Documentation/devicetree/bindings/sound/mxs-audio-sgtl5000.txt
浏览文件 @ 7bf14c28
* Freescale MXS audio complex with SGTL5000 codec
Required properties:
- compatible: "fsl,mxs-audio-sgtl5000"
- model: The user-visible name of this sound complex
- saif-controllers: The phandle list of the MXS SAIF controller
- audio-codec: The phandle of the SGTL5000 audio codec
- compatible : "fsl,mxs-audio-sgtl5000"
- model : The user-visible name of this sound complex
- saif-controllers : The phandle list of the MXS SAIF controller
- audio-codec : The phandle of the SGTL5000 audio codec
- audio-routing : A list of the connections between audio components.
Each entry is a pair of strings, the first being the
connection's sink, the second being the connection's
source. Valid names could be power supplies, SGTL5000
pins, and the jacks on the board:
Power supplies:
* Mic Bias
SGTL5000 pins:
* MIC_IN
* LINE_IN
* HP_OUT
* LINE_OUT
Board connectors:
* Mic Jack
* Line In Jack
* Headphone Jack
* Line Out Jack
* Ext Spk
Example:
......@@ -14,4 +35,8 @@ sound {
model = "imx28-evk-sgtl5000";
saif-controllers = <&saif0 &saif1>;
audio-codec = <&sgtl5000>;
audio-routing =
"MIC_IN", "Mic Jack",
"Mic Jack", "Mic Bias",
"Headphone Jack", "HP_OUT";
};
Documentation/devicetree/bindings/sound/nau8825.txt
浏览文件 @ 7bf14c28
......@@ -69,7 +69,7 @@ Optional properties:
- nuvoton,jack-insert-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
- nuvoton,jack-eject-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
- nuvoton,crosstalk-bypass: make crosstalk function bypass if set.
- nuvoton,crosstalk-enable: make crosstalk function enable if set.
- clocks: list of phandle and clock specifier pairs according to common clock bindings for the
clocks described in clock-names
......@@ -98,7 +98,7 @@ Example:
nuvoton,short-key-debounce = <2>;
nuvoton,jack-insert-debounce = <7>;
nuvoton,jack-eject-debounce = <7>;
nuvoton,crosstalk-bypass;
nuvoton,crosstalk-enable;
clock-names = "mclk";
clocks = <&tegra_car TEGRA210_CLK_CLK_OUT_2>;
......
Documentation/devicetree/bindings/sound/pcm186x.txt 0 → 100644
浏览文件 @ 7bf14c28
Texas Instruments PCM186x Universal Audio ADC
These devices support both I2C and SPI (configured with pin strapping
on the board).
Required properties:
- compatible : "ti,pcm1862",
"ti,pcm1863",
"ti,pcm1864",
"ti,pcm1865"
- reg : The I2C address of the device for I2C, the chip select
number for SPI.
- avdd-supply: Analog core power supply (3.3v)
- dvdd-supply: Digital core power supply
- iovdd-supply: Digital IO power supply
See regulator/regulator.txt for more information
CODEC input pins:
* VINL1
* VINR1
* VINL2
* VINR2
* VINL3
* VINR3
* VINL4
* VINR4
The pins can be used in referring sound node's audio-routing property.
Example:
pcm186x: audio-codec@4a {
compatible = "ti,pcm1865";
reg = <0x4a>;
avdd-supply = <&reg_3v3_analog>;
dvdd-supply = <&reg_3v3>;
iovdd-supply = <&reg_1v8>;
};
Documentation/devicetree/bindings/sound/renesas,rsnd.txt
浏览文件 @ 7bf14c28
......@@ -4,7 +4,7 @@ Renesas R-Car sound
* Modules
=============================================
Renesas R-Car sound is constructed from below modules
Renesas R-Car and RZ/G sound is constructed from below modules
(for Gen2 or later)
SCU : Sampling Rate Converter Unit
......@@ -197,12 +197,17 @@ Ex)
[MEM] -> [SRC2] -> [CTU03] -+
sound {
#address-cells = <1>;
#size-cells = <0>;
compatible = "simple-scu-audio-card";
...
simple-audio-card,cpu-0 {
simple-audio-card,cpu@0 {
reg = <0>;
sound-dai = <&rcar_sound 0>;
};
simple-audio-card,cpu-1 {
simple-audio-card,cpu@1 {
reg = <1>;
sound-dai = <&rcar_sound 1>;
};
simple-audio-card,codec {
......@@ -334,9 +339,11 @@ Required properties:
- compatible : "renesas,rcar_sound-<soctype>", fallbacks
"renesas,rcar_sound-gen1" if generation1, and
"renesas,rcar_sound-gen2" if generation2
"renesas,rcar_sound-gen2" if generation2 (or RZ/G1)
"renesas,rcar_sound-gen3" if generation3
Examples with soctypes are:
- "renesas,rcar_sound-r8a7743" (RZ/G1M)
- "renesas,rcar_sound-r8a7745" (RZ/G1E)
- "renesas,rcar_sound-r8a7778" (R-Car M1A)
- "renesas,rcar_sound-r8a7779" (R-Car H1)
- "renesas,rcar_sound-r8a7790" (R-Car H2)
......
Documentation/devicetree/bindings/sound/simple-card.txt
浏览文件 @ 7bf14c28
......@@ -140,6 +140,7 @@ sound {
simple-audio-card,name = "Cubox Audio";
simple-audio-card,dai-link@0 { /* I2S - HDMI */
reg = <0>;
format = "i2s";
cpu {
sound-dai = <&audio1 0>;
......@@ -150,6 +151,7 @@ sound {
};
simple-audio-card,dai-link@1 { /* S/PDIF - HDMI */
reg = <1>;
cpu {
sound-dai = <&audio1 1>;
};
......@@ -159,6 +161,7 @@ sound {
};
simple-audio-card,dai-link@2 { /* S/PDIF - S/PDIF */
reg = <2>;
cpu {
sound-dai = <&audio1 1>;
};
......
Documentation/devicetree/bindings/sound/st,stm32-adfsdm.txt 0 → 100644
浏览文件 @ 7bf14c28
STMicroelectronics Audio Digital Filter Sigma Delta modulators(DFSDM)
The DFSDM allows PDM microphones capture through SPI interface. The Audio
interface is seems as a sub block of the DFSDM device.
For details on DFSDM bindings refer to ../iio/adc/st,stm32-dfsdm-adc.txt
Required properties:
- compatible: "st,stm32h7-dfsdm-dai".
- #sound-dai-cells : Must be equal to 0
- io-channels : phandle to iio dfsdm instance node.
Example of a sound card using audio DFSDM node.
sound_card {
compatible = "audio-graph-card";
dais = <&cpu_port>;
};
dfsdm: dfsdm@40017000 {
compatible = "st,stm32h7-dfsdm";
reg = <0x40017000 0x400>;
clocks = <&rcc DFSDM1_CK>;
clock-names = "dfsdm";
#interrupt-cells = <1>;
#address-cells = <1>;
#size-cells = <0>;
dfsdm_adc0: filter@0 {
compatible = "st,stm32-dfsdm-dmic";
reg = <0>;
interrupts = <110>;
dmas = <&dmamux1 101 0x400 0x00>;
dma-names = "rx";
st,adc-channels = <1>;
st,adc-channel-names = "dmic0";
st,adc-channel-types = "SPI_R";
st,adc-channel-clk-src = "CLKOUT";
st,filter-order = <5>;
dfsdm_dai0: dfsdm-dai {
compatible = "st,stm32h7-dfsdm-dai";
#sound-dai-cells = <0>;
io-channels = <&dfsdm_adc0 0>;
cpu_port: port {
dfsdm_endpoint: endpoint {
remote-endpoint = <&dmic0_endpoint>;
};
};
};
};
dmic0: dmic@0 {
compatible = "dmic-codec";
#sound-dai-cells = <0>;
port {
dmic0_endpoint: endpoint {
remote-endpoint = <&dfsdm_endpoint>;
};
};
};
Documentation/devicetree/bindings/sound/st,stm32-sai.txt
浏览文件 @ 7bf14c28
......@@ -20,11 +20,6 @@ Required properties:
Optional properties:
- resets: Reference to a reset controller asserting the SAI
- st,sync: specify synchronization mode.
By default SAI sub-block is in asynchronous mode.
This property sets SAI sub-block as slave of another SAI sub-block.
Must contain the phandle and index of the sai sub-block providing
the synchronization.
SAI subnodes:
Two subnodes corresponding to SAI sub-block instances A et B can be defined.
......@@ -44,6 +39,13 @@ SAI subnodes required properties:
- pinctrl-names: should contain only value "default"
- pinctrl-0: see Documentation/devicetree/bindings/pinctrl/pinctrl-stm32.txt
SAI subnodes Optional properties:
- st,sync: specify synchronization mode.
By default SAI sub-block is in asynchronous mode.
This property sets SAI sub-block as slave of another SAI sub-block.
Must contain the phandle and index of the sai sub-block providing
the synchronization.
The device node should contain one 'port' child node with one child 'endpoint'
node, according to the bindings defined in Documentation/devicetree/bindings/
graph.txt.
......
Documentation/devicetree/bindings/sound/sun4i-i2s.txt
浏览文件 @ 7bf14c28
......@@ -8,6 +8,7 @@ Required properties:
- compatible: should be one of the following:
- "allwinner,sun4i-a10-i2s"
- "allwinner,sun6i-a31-i2s"
- "allwinner,sun8i-a83t-i2s"
- "allwinner,sun8i-h3-i2s"
- reg: physical base address of the controller and length of memory mapped
region.
......@@ -23,6 +24,7 @@ Required properties:
Required properties for the following compatibles:
- "allwinner,sun6i-a31-i2s"
- "allwinner,sun8i-a83t-i2s"
- "allwinner,sun8i-h3-i2s"
- resets: phandle to the reset line for this codec
......
Documentation/devicetree/bindings/sound/tas5720.txt
浏览文件 @ 7bf14c28
......@@ -6,10 +6,12 @@ audio playback. For more product information please see the links below:
http://www.ti.com/product/TAS5720L
http://www.ti.com/product/TAS5720M
http://www.ti.com/product/TAS5722L
Required properties:
- compatible : "ti,tas5720"
- compatible : "ti,tas5720",
"ti,tas5722"
- reg : I2C slave address
- dvdd-supply : phandle to a 3.3-V supply for the digital circuitry
- pvdd-supply : phandle to a supply used for the Class-D amp and the analog
......
Documentation/devicetree/bindings/sound/tfa9879.txt
浏览文件 @ 7bf14c28
......@@ -6,18 +6,18 @@ Required properties:
- reg : the I2C address of the device
- #sound-dai-cells : must be 0.
Example:
&i2c1 {
clock-frequency = <100000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
status = "okay";
codec: tfa9879@6c {
amp: amp@6c {
#sound-dai-cells = <0>;
compatible = "nxp,tfa9879";
reg = <0x6c>;
};
};
};
Documentation/devicetree/bindings/sound/ti,tas6424.txt 0 → 100644
浏览文件 @ 7bf14c28
Texas Instruments TAS6424 Quad-Channel Audio amplifier
The TAS6424 serial control bus communicates through I2C protocols.
Required properties:
- compatible: "ti,tas6424" - TAS6424
- reg: I2C slave address
- sound-dai-cells: must be equal to 0
Example:
tas6424: tas6424@6a {
compatible = "ti,tas6424";
reg = <0x6a>;
#sound-dai-cells = <0>;
};
For more product information please see the link below:
http://www.ti.com/product/TAS6424-Q1
Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
浏览文件 @ 7bf14c28
......@@ -22,7 +22,7 @@ Required properties:
Optional properties:
- gpio-reset - gpio pin number used for codec reset
- reset-gpios - GPIO specification for the active low RESET input.
- ai31xx-micbias-vg - MicBias Voltage setting
1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
......@@ -30,6 +30,10 @@ Optional properties:
If this node is not mentioned or if the value is unknown, then
micbias is set to 2.0V.
Deprecated properties:
- gpio-reset - gpio pin number used for codec reset
CODEC output pins:
* HPL
* HPR
......@@ -48,6 +52,7 @@ CODEC input pins:
The pins can be used in referring sound node's audio-routing property.
Example:
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/sound/tlv320aic31xx-micbias.h>
tlv320aic31xx: tlv320aic31xx@18 {
......@@ -56,6 +61,8 @@ tlv320aic31xx: tlv320aic31xx@18 {
ai31xx-micbias-vg = <MICBIAS_OFF>;
reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
HPVDD-supply = <&regulator>;
SPRVDD-supply = <&regulator>;
SPLVDD-supply = <&regulator>;
......
Documentation/devicetree/bindings/sound/tlv320aic3x.txt
浏览文件 @ 7bf14c28
......@@ -17,7 +17,7 @@ Required properties:
Optional properties:
- gpio-reset - gpio pin number used for codec reset
- reset-gpios - GPIO specification for the active low RESET input.
- ai3x-gpio-func - <array of 2 int> - AIC3X_GPIO1 & AIC3X_GPIO2 Functionality
- Not supported on tlv320aic3104
- ai3x-micbias-vg - MicBias Voltage required.
......@@ -34,6 +34,10 @@ Optional properties:
- AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
device as covered in Documentation/devicetree/bindings/regulator/regulator.txt
Deprecated properties:
- gpio-reset - gpio pin number used for codec reset
CODEC output pins:
* LLOUT
* RLOUT
......@@ -61,10 +65,14 @@ The pins can be used in referring sound node's audio-routing property.
Example:
#include <dt-bindings/gpio/gpio.h>
tlv320aic3x: tlv320aic3x@1b {
compatible = "ti,tlv320aic3x";
reg = <0x1b>;
reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
AVDD-supply = <&regulator>;
IOVDD-supply = <&regulator>;
DRVDD-supply = <&regulator>;
......
Documentation/devicetree/bindings/sound/tscs42xx.txt 0 → 100644
浏览文件 @ 7bf14c28
TSCS42XX Audio CODEC
Required Properties:
- compatible : "tempo,tscs42A1" for analog mic
"tempo,tscs42A2" for digital mic
- reg : <0x71> for analog mic
<0x69> for digital mic
Example:
wookie: codec@69 {
compatible = "tempo,tscs42A2";
reg = <0x69>;
};
Documentation/devicetree/bindings/sound/uniphier,evea.txt 0 → 100644
浏览文件 @ 7bf14c28
Socionext EVEA - UniPhier SoC internal codec driver
Required properties:
- compatible : should be "socionext,uniphier-evea".
- reg : offset and length of the register set for the device.
- clock-names : should include following entries:
"evea", "exiv"
- clocks : a list of phandle, should contain an entry for each
entries in clock-names.
- reset-names : should include following entries:
"evea", "exiv", "adamv"
- resets : a list of phandle, should contain reset entries of
reset-names.
- #sound-dai-cells: should be 1.
Example:
codec {
compatible = "socionext,uniphier-evea";
reg = <0x57900000 0x1000>;
clock-names = "evea", "exiv";
clocks = <&sys_clk 41>, <&sys_clk 42>;
reset-names = "evea", "exiv", "adamv";
resets = <&sys_rst 41>, <&sys_rst 42>, <&adamv_rst 0>;
#sound-dai-cells = <1>;
};
Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
浏览文件 @ 7bf14c28
......@@ -12,24 +12,30 @@ Required properties:
- "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53 and later Soc
- reg : Offset and length of the register set for the device
- interrupts : Should contain CSPI/eCSPI interrupt
- cs-gpios : Specifies the gpio pins to be used for chipselects.
- clocks : Clock specifiers for both ipg and per clocks.
- clock-names : Clock names should include both "ipg" and "per"
See the clock consumer binding,
Documentation/devicetree/bindings/clock/clock-bindings.txt
- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
Documentation/devicetree/bindings/dma/dma.txt
- dma-names: DMA request names should include "tx" and "rx" if present.
Obsolete properties:
- fsl,spi-num-chipselects : Contains the number of the chipselect
Recommended properties:
- cs-gpios : GPIOs to use as chip selects, see spi-bus.txt. While the native chip
select lines can be used, they appear to always generate a pulse between each
word of a transfer. Most use cases will require GPIO based chip selects to
generate a valid transaction.
Optional properties:
- num-cs : Number of total chip selects, see spi-bus.txt.
- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
Documentation/devicetree/bindings/dma/dma.txt.
- dma-names: DMA request names, if present, should include "tx" and "rx".
- fsl,spi-rdy-drctl: Integer, representing the value of DRCTL, the register
controlling the SPI_READY handling. Note that to enable the DRCTL consideration,
the SPI_READY mode-flag needs to be set too.
Valid values are: 0 (disabled), 1 (edge-triggered burst) and 2 (level-triggered burst).
Obsolete properties:
- fsl,spi-num-chipselects : Contains the number of the chipselect
Example:
ecspi@70010000 {
......
Documentation/devicetree/bindings/spi/sh-msiof.txt
浏览文件 @ 7bf14c28
......@@ -36,7 +36,21 @@ Required properties:
Optional properties:
- clocks : Must contain a reference to the functional clock.
- num-cs : Total number of chip-selects (default is 1)
- num-cs : Total number of chip selects (default is 1).
Up to 3 native chip selects are supported:
0: MSIOF_SYNC
1: MSIOF_SS1
2: MSIOF_SS2
Hardware limitations related to chip selects:
- Native chip selects are always deasserted in
between transfers that are part of the same
message. Use cs-gpios to work around this.
- All slaves using native chip selects must use the
same spi-cs-high configuration. Use cs-gpios to
work around this.
- When using GPIO chip selects, at least one native
chip select must be left unused, as it will be
driven anyway.
- dmas : Must contain a list of two references to DMA
specifiers, one for transmission, and one for
reception.
......
Documentation/devicetree/bindings/spi/spi-meson.txt
浏览文件 @ 7bf14c28
......@@ -27,7 +27,9 @@ The Meson SPICC is generic SPI controller for general purpose Full-Duplex
communications with dedicated 16 words RX/TX PIO FIFOs.
Required properties:
- compatible: should be "amlogic,meson-gx-spicc" on Amlogic GX SoCs.
- compatible: should be:
"amlogic,meson-gx-spicc" on Amlogic GX and compatible SoCs.
"amlogic,meson-axg-spicc" on Amlogic AXG and compatible SoCs
- reg: physical base address and length of the controller registers
- interrupts: The interrupt specifier
- clock-names: Must contain "core"
......
Documentation/devicetree/bindings/spi/spi-orion.txt
浏览文件 @ 7bf14c28
......@@ -18,8 +18,17 @@ Required properties:
The eight register sets following the control registers refer to
chip-select lines 0 through 7 respectively.
- cell-index : Which of multiple SPI controllers is this.
- clocks : pointers to the reference clocks for this device, the first
one is the one used for the clock on the spi bus, the
second one is optional and is the clock used for the
functional part of the controller
Optional properties:
- interrupts : Is currently not used.
- clock-names : names of used clocks, mandatory if the second clock is
used, the name must be "core", and "axi" (the latter
is only for Armada 7K/8K).
Example:
spi@10600 {
......
Documentation/devicetree/bindings/spi/spi-xilinx.txt
浏览文件 @ 7bf14c28
......@@ -2,7 +2,7 @@ Xilinx SPI controller Device Tree Bindings
-------------------------------------------------
Required properties:
- compatible : Should be "xlnx,xps-spi-2.00.a" or "xlnx,xps-spi-2.00.b"
- compatible : Should be "xlnx,xps-spi-2.00.a", "xlnx,xps-spi-2.00.b" or "xlnx,axi-quad-spi-1.00.a"
- reg : Physical base address and size of SPI registers map.
- interrupts : Property with a value describing the interrupt
number.
......
Documentation/devicetree/bindings/timer/actions,owl-timer.txt
浏览文件 @ 7bf14c28
......@@ -2,6 +2,7 @@ Actions Semi Owl Timer
Required properties:
- compatible : "actions,s500-timer" for S500
"actions,s700-timer" for S700
"actions,s900-timer" for S900
- reg : Offset and length of the register set for the device.
- interrupts : Should contain the interrupts.
......
Documentation/devicetree/bindings/timer/spreadtrum,sprd-timer.txt 0 → 100644
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Spreadtrum timers
The Spreadtrum SC9860 platform provides 3 general-purpose timers.
These timers can support 32bit or 64bit counter, as well as supporting
period mode or one-shot mode, and they are can be wakeup source
during deep sleep.
Required properties:
- compatible: should be "sprd,sc9860-timer" for SC9860 platform.
- reg: The register address of the timer device.
- interrupts: Should contain the interrupt for the timer device.
- clocks: The phandle to the source clock (usually a 32.768 KHz fixed clock).
Example:
timer@40050000 {
compatible = "sprd,sc9860-timer";
reg = <0 0x40050000 0 0x20>;
interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ext_32k>;
};
Documentation/devicetree/bindings/vendor-prefixes.txt
浏览文件 @ 7bf14c28
......@@ -347,6 +347,7 @@ tcg Trusted Computing Group
tcl Toby Churchill Ltd.
technexion TechNexion
technologic Technologic Systems
tempo Tempo Semiconductor
terasic Terasic Inc.
thine THine Electronics, Inc.
ti Texas Instruments
......
Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt 0 → 100644
浏览文件 @ 7bf14c28
Zodiac Inflight Innovations RAVE Supervisory Processor Watchdog Bindings
RAVE SP watchdog device is a "MFD cell" device corresponding to
watchdog functionality of RAVE Supervisory Processor. It is expected
that its Device Tree node is specified as a child of the node
corresponding to the parent RAVE SP device (as documented in
Documentation/devicetree/bindings/mfd/zii,rave-sp.txt)
Required properties:
- compatible: Depending on wire protocol implemented by RAVE SP
firmware, should be one of:
- "zii,rave-sp-watchdog"
- "zii,rave-sp-watchdog-legacy"
Optional properties:
- wdt-timeout: Two byte nvmem cell specified as per
Documentation/devicetree/bindings/nvmem/nvmem.txt
Example:
rave-sp {
compatible = "zii,rave-sp-rdu1";
current-speed = <38400>;
eeprom {
wdt_timeout: wdt-timeout@8E {
reg = <0x8E 2>;
};
};
watchdog {
compatible = "zii,rave-sp-watchdog";
nvmem-cells = <&wdt_timeout>;
nvmem-cell-names = "wdt-timeout";
};
}
Documentation/driver-api/iio/hw-consumer.rst 0 → 100644
浏览文件 @ 7bf14c28
===========
HW consumer
===========
An IIO device can be directly connected to another device in hardware. in this
case the buffers between IIO provider and IIO consumer are handled by hardware.
The Industrial I/O HW consumer offers a way to bond these IIO devices without
software buffer for data. The implementation can be found under
:file:`drivers/iio/buffer/hw-consumer.c`
* struct :c:type:`iio_hw_consumer` — Hardware consumer structure
* :c:func:`iio_hw_consumer_alloc` — Allocate IIO hardware consumer
* :c:func:`iio_hw_consumer_free` — Free IIO hardware consumer
* :c:func:`iio_hw_consumer_enable` — Enable IIO hardware consumer
* :c:func:`iio_hw_consumer_disable` — Disable IIO hardware consumer
HW consumer setup
=================
As standard IIO device the implementation is based on IIO provider/consumer.
A typical IIO HW consumer setup looks like this::
static struct iio_hw_consumer *hwc;
static const struct iio_info adc_info = {
.read_raw = adc_read_raw,
};
static int adc_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val,
int *val2, long mask)
{
ret = iio_hw_consumer_enable(hwc);
/* Acquire data */
ret = iio_hw_consumer_disable(hwc);
}
static int adc_probe(struct platform_device *pdev)
{
hwc = devm_iio_hw_consumer_alloc(&iio->dev);
}
More details
============
.. kernel-doc:: include/linux/iio/hw-consumer.h
.. kernel-doc:: drivers/iio/buffer/industrialio-hw-consumer.c
:export:
Documentation/driver-api/iio/index.rst
浏览文件 @ 7bf14c28
......@@ -15,3 +15,4 @@ Contents:
buffers
triggers
triggered-buffers
hw-consumer
Documentation/driver-api/pm/devices.rst
浏览文件 @ 7bf14c28
......@@ -777,17 +777,51 @@ The driver can indicate that by setting ``DPM_FLAG_SMART_SUSPEND`` in
runtime suspend at the beginning of the ``suspend_late`` phase of system-wide
suspend (or in the ``poweroff_late`` phase of hibernation), when runtime PM
has been disabled for it, under the assumption that its state should not change
after that point until the system-wide transition is over. If that happens, the
driver's system-wide resume callbacks, if present, may still be invoked during
the subsequent system-wide resume transition and the device's runtime power
management status may be set to "active" before enabling runtime PM for it,
so the driver must be prepared to cope with the invocation of its system-wide
resume callbacks back-to-back with its ``->runtime_suspend`` one (without the
intervening ``->runtime_resume`` and so on) and the final state of the device
must reflect the "active" status for runtime PM in that case.
after that point until the system-wide transition is over (the PM core itself
does that for devices whose "noirq", "late" and "early" system-wide PM callbacks
are executed directly by it). If that happens, the driver's system-wide resume
callbacks, if present, may still be invoked during the subsequent system-wide
resume transition and the device's runtime power management status may be set
to "active" before enabling runtime PM for it, so the driver must be prepared to
cope with the invocation of its system-wide resume callbacks back-to-back with
its ``->runtime_suspend`` one (without the intervening ``->runtime_resume`` and
so on) and the final state of the device must reflect the "active" runtime PM
status in that case.
During system-wide resume from a sleep state it's easiest to put devices into
the full-power state, as explained in :file:`Documentation/power/runtime_pm.txt`.
Refer to that document for more information regarding this particular issue as
[Refer to that document for more information regarding this particular issue as
well as for information on the device runtime power management framework in
general.
general.]
However, it often is desirable to leave devices in suspend after system
transitions to the working state, especially if those devices had been in
runtime suspend before the preceding system-wide suspend (or analogous)
transition. Device drivers can use the ``DPM_FLAG_LEAVE_SUSPENDED`` flag to
indicate to the PM core (and middle-layer code) that they prefer the specific
devices handled by them to be left suspended and they have no problems with
skipping their system-wide resume callbacks for this reason. Whether or not the
devices will actually be left in suspend may depend on their state before the
given system suspend-resume cycle and on the type of the system transition under
way. In particular, devices are not left suspended if that transition is a
restore from hibernation, as device states are not guaranteed to be reflected
by the information stored in the hibernation image in that case.
The middle-layer code involved in the handling of the device is expected to
indicate to the PM core if the device may be left in suspend by setting its
:c:member:`power.may_skip_resume` status bit which is checked by the PM core
during the "noirq" phase of the preceding system-wide suspend (or analogous)
transition. The middle layer is then responsible for handling the device as
appropriate in its "noirq" resume callback, which is executed regardless of
whether or not the device is left suspended, but the other resume callbacks
(except for ``->complete``) will be skipped automatically by the PM core if the
device really can be left in suspend.
For devices whose "noirq", "late" and "early" driver callbacks are invoked
directly by the PM core, all of the system-wide resume callbacks are skipped if
``DPM_FLAG_LEAVE_SUSPENDED`` is set and the device is in runtime suspend during
the ``suspend_noirq`` (or analogous) phase or the transition under way is a
proper system suspend (rather than anything related to hibernation) and the
device's wakeup settings are suitable for runtime PM (that is, it cannot
generate wakeup signals at all or it is allowed to wake up the system from
sleep).
Documentation/driver-model/devres.txt
浏览文件 @ 7bf14c28
......@@ -384,6 +384,9 @@ RESET
devm_reset_control_get()
devm_reset_controller_register()
SERDEV
devm_serdev_device_open()
SLAVE DMA ENGINE
devm_acpi_dma_controller_register()
......
Documentation/features/debug/KASAN/arch-support.txt
浏览文件 @ 7bf14c28
......@@ -35,5 +35,5 @@
| um: | TODO |
| unicore32: | TODO |
| x86: | ok | 64-bit only
| xtensa: | TODO |
| xtensa: | ok |
-----------------------
Documentation/features/debug/stackprotector/arch-support.txt
浏览文件 @ 7bf14c28
......@@ -35,5 +35,5 @@
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
| xtensa: | ok |
-----------------------
Documentation/filesystems/nilfs2.txt
浏览文件 @ 7bf14c28
......@@ -25,8 +25,8 @@ available from the following download page. At least "mkfs.nilfs2",
cleaner or garbage collector) are required. Details on the tools are
described in the man pages included in the package.
Project web page: http://nilfs.sourceforge.net/
Download page: http://nilfs.sourceforge.net/en/download.html
Project web page: https://nilfs.sourceforge.io/
Download page: https://nilfs.sourceforge.io/en/download.html
List info: http://vger.kernel.org/vger-lists.html#linux-nilfs
Caveats
......
Documentation/filesystems/overlayfs.txt
浏览文件 @ 7bf14c28
......@@ -156,6 +156,40 @@ handle it in two different ways:
root of the overlay. Finally the directory is moved to the new
location.
There are several ways to tune the "redirect_dir" feature.
Kernel config options:
- OVERLAY_FS_REDIRECT_DIR:
If this is enabled, then redirect_dir is turned on by default.
- OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW:
If this is enabled, then redirects are always followed by default. Enabling
this results in a less secure configuration. Enable this option only when
worried about backward compatibility with kernels that have the redirect_dir
feature and follow redirects even if turned off.
Module options (can also be changed through /sys/module/overlay/parameters/*):
- "redirect_dir=BOOL":
See OVERLAY_FS_REDIRECT_DIR kernel config option above.
- "redirect_always_follow=BOOL":
See OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW kernel config option above.
- "redirect_max=NUM":
The maximum number of bytes in an absolute redirect (default is 256).
Mount options:
- "redirect_dir=on":
Redirects are enabled.
- "redirect_dir=follow":
Redirects are not created, but followed.
- "redirect_dir=off":
Redirects are not created and only followed if "redirect_always_follow"
feature is enabled in the kernel/module config.
- "redirect_dir=nofollow":
Redirects are not created and not followed (equivalent to "redirect_dir=off"
if "redirect_always_follow" feature is not enabled).
Non-directories
---------------
......
Documentation/gpu/i915.rst
浏览文件 @ 7bf14c28
......@@ -341,10 +341,7 @@ GuC
GuC-specific firmware loader
----------------------------
.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c
:doc: GuC-specific firmware loader
.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c
.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_fw.c
:internal:
GuC-based command submission
......
Documentation/hwmon/lm25066
浏览文件 @ 7bf14c28
......@@ -8,11 +8,6 @@ Supported chips:
Datasheets:
http://www.ti.com/lit/gpn/lm25056
http://www.ti.com/lit/gpn/lm25056a
* TI LM25063
Prefix: 'lm25063'
Addresses scanned: -
Datasheet:
To be announced
* National Semiconductor LM25066
Prefix: 'lm25066'
Addresses scanned: -
......@@ -42,7 +37,7 @@ Description
-----------
This driver supports hardware monitoring for National Semiconductor / TI LM25056,
LM25063, LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
LM25066, LM5064, and LM5066/LM5066I Power Management, Monitoring,
Control, and Protection ICs.
The driver is a client driver to the core PMBus driver. Please see
......@@ -74,12 +69,8 @@ in1_input Measured input voltage.
in1_average Average measured input voltage.
in1_min Minimum input voltage.
in1_max Maximum input voltage.
in1_crit Critical high input voltage (LM25063 only).
in1_lcrit Critical low input voltage (LM25063 only).
in1_min_alarm Input voltage low alarm.
in1_max_alarm Input voltage high alarm.
in1_lcrit_alarm Input voltage critical low alarm (LM25063 only).
in1_crit_alarm Input voltage critical high alarm. (LM25063 only).
in2_label "vmon"
in2_input Measured voltage on VAUX pin
......@@ -94,16 +85,12 @@ in3_input Measured output voltage.
in3_average Average measured output voltage.
in3_min Minimum output voltage.
in3_min_alarm Output voltage low alarm.
in3_highest Historical minimum output voltage (LM25063 only).
in3_lowest Historical maximum output voltage (LM25063 only).
curr1_label "iin"
curr1_input Measured input current.
curr1_average Average measured input current.
curr1_max Maximum input current.
curr1_crit Critical input current (LM25063 only).
curr1_max_alarm Input current high alarm.
curr1_crit_alarm Input current critical high alarm (LM25063 only).
power1_label "pin"
power1_input Measured input power.
......@@ -113,11 +100,6 @@ power1_alarm Input power alarm
power1_input_highest Historical maximum power.
power1_reset_history Write any value to reset maximum power history.
power2_label "pout". LM25063 only.
power2_input Measured output power.
power2_max Maximum output power limit.
power2_crit Critical output power limit.
temp1_input Measured temperature.
temp1_max Maximum temperature.
temp1_crit Critical high temperature.
......
Documentation/hwmon/max31785
浏览文件 @ 7bf14c28
......@@ -17,8 +17,9 @@ management with temperature and remote voltage sensing. Various fan control
features are provided, including PWM frequency control, temperature hysteresis,
dual tachometer measurements, and fan health monitoring.
For dual rotor fan configuration, the MAX31785 exposes the slowest rotor of the
two in the fan[1-4]_input attributes.
For dual-rotor configurations the MAX31785A exposes the second rotor tachometer
readings in attributes fan[5-8]_input. By contrast the MAX31785 only exposes
the slowest rotor measurement, and does so in the fan[1-4]_input attributes.
Usage Notes
-----------
......@@ -31,7 +32,9 @@ Sysfs attributes
fan[1-4]_alarm Fan alarm.
fan[1-4]_fault Fan fault.
fan[1-4]_input Fan RPM.
fan[1-8]_input Fan RPM. On the MAX31785A, inputs 5-8 correspond to the
second rotor of fans 1-4
fan[1-4]_target Fan input target
in[1-6]_crit Critical maximum output voltage
in[1-6]_crit_alarm Output voltage critical high alarm
......@@ -44,6 +47,12 @@ in[1-6]_max_alarm Output voltage high alarm
in[1-6]_min Minimum output voltage
in[1-6]_min_alarm Output voltage low alarm
pwm[1-4] Fan target duty cycle (0..255)
pwm[1-4]_enable 0: Full-speed
1: Manual PWM control
2: Automatic PWM (tach-feedback RPM fan-control)
3: Automatic closed-loop (temp-feedback fan-control)
temp[1-11]_crit Critical high temperature
temp[1-11]_crit_alarm Chip temperature critical high alarm
temp[1-11]_input Measured temperature
......
Documentation/hwmon/w83773g 0 → 100644
浏览文件 @ 7bf14c28
Kernel driver w83773g
====================
Supported chips:
* Nuvoton W83773G
Prefix: 'w83773g'
Addresses scanned: I2C 0x4c and 0x4d
Datasheet: https://www.nuvoton.com/resource-files/W83773G_SG_DatasheetV1_2.pdf
Authors:
Lei YU <mine260309@gmail.com>
Description
-----------
This driver implements support for Nuvoton W83773G temperature sensor
chip. This chip implements one local and two remote sensors.
The chip also features offsets for the two remote sensors which get added to
the input readings. The chip does all the scaling by itself and the driver
therefore reports true temperatures that don't need any user-space adjustments.
Temperature is measured in degrees Celsius.
The chip is wired over I2C/SMBus and specified over a temperature
range of -40 to +125 degrees Celsius (for local sensor) and -40 to +127
degrees Celsius (for remote sensors).
Resolution for both the local and remote channels is 0.125 degree C.
The chip supports only temperature measurement. The driver exports
the temperature values via the following sysfs files:
temp[1-3]_input
temp[2-3]_fault
temp[2-3]_offset
update_interval
Documentation/kbuild/kconfig-language.txt
浏览文件 @ 7bf14c28
......@@ -200,10 +200,14 @@ module state. Dependency expressions have the following syntax:
<expr> ::= <symbol> (1)
<symbol> '=' <symbol> (2)
<symbol> '!=' <symbol> (3)
'(' <expr> ')' (4)
'!' <expr> (5)
<expr> '&&' <expr> (6)
<expr> '||' <expr> (7)
<symbol1> '<' <symbol2> (4)
<symbol1> '>' <symbol2> (4)
<symbol1> '<=' <symbol2> (4)
<symbol1> '>=' <symbol2> (4)
'(' <expr> ')' (5)
'!' <expr> (6)
<expr> '&&' <expr> (7)
<expr> '||' <expr> (8)
Expressions are listed in decreasing order of precedence.
......@@ -214,10 +218,13 @@ Expressions are listed in decreasing order of precedence.
otherwise 'n'.
(3) If the values of both symbols are equal, it returns 'n',
otherwise 'y'.
(4) Returns the value of the expression. Used to override precedence.
(5) Returns the result of (2-/expr/).
(6) Returns the result of min(/expr/, /expr/).
(7) Returns the result of max(/expr/, /expr/).
(4) If value of <symbol1> is respectively lower, greater, lower-or-equal,
or greater-or-equal than value of <symbol2>, it returns 'y',
otherwise 'n'.
(5) Returns the value of the expression. Used to override precedence.
(6) Returns the result of (2-/expr/).
(7) Returns the result of min(/expr/, /expr/).
(8) Returns the result of max(/expr/, /expr/).
An expression can have a value of 'n', 'm' or 'y' (or 0, 1, 2
respectively for calculations). A menu entry becomes visible when its
......
Documentation/locking/crossrelease.txt 已删除 100644 → 0
浏览文件 @ 87cedc6b
此差异已折叠。
Documentation/locking/locktorture.txt
浏览文件 @ 7bf14c28
......@@ -57,11 +57,6 @@ torture_type Type of lock to torture. By default, only spinlocks will
o "rwsem_lock": read/write down() and up() semaphore pairs.
torture_runnable Start locktorture at boot time in the case where the
module is built into the kernel, otherwise wait for
torture_runnable to be set via sysfs before starting.
By default it will begin once the module is loaded.
** Torture-framework (RCU + locking) **
......
Documentation/memory-barriers.txt
浏览文件 @ 7bf14c28
......@@ -227,17 +227,20 @@ There are some minimal guarantees that may be expected of a CPU:
(*) On any given CPU, dependent memory accesses will be issued in order, with
respect to itself. This means that for:
Q = READ_ONCE(P); smp_read_barrier_depends(); D = READ_ONCE(*Q);
Q = READ_ONCE(P); D = READ_ONCE(*Q);
the CPU will issue the following memory operations:
Q = LOAD P, D = LOAD *Q
and always in that order. On most systems, smp_read_barrier_depends()
does nothing, but it is required for DEC Alpha. The READ_ONCE()
is required to prevent compiler mischief. Please note that you
should normally use something like rcu_dereference() instead of
open-coding smp_read_barrier_depends().
and always in that order. However, on DEC Alpha, READ_ONCE() also
emits a memory-barrier instruction, so that a DEC Alpha CPU will
instead issue the following memory operations:
Q = LOAD P, MEMORY_BARRIER, D = LOAD *Q, MEMORY_BARRIER
Whether on DEC Alpha or not, the READ_ONCE() also prevents compiler
mischief.
(*) Overlapping loads and stores within a particular CPU will appear to be
ordered within that CPU. This means that for:
......@@ -1815,7 +1818,7 @@ The Linux kernel has eight basic CPU memory barriers:
GENERAL mb() smp_mb()
WRITE wmb() smp_wmb()
READ rmb() smp_rmb()
DATA DEPENDENCY read_barrier_depends() smp_read_barrier_depends()
DATA DEPENDENCY READ_ONCE()
All memory barriers except the data dependency barriers imply a compiler
......@@ -2864,7 +2867,10 @@ access depends on a read, not all do, so it may not be relied on.
Other CPUs may also have split caches, but must coordinate between the various
cachelets for normal memory accesses. The semantics of the Alpha removes the
need for coordination in the absence of memory barriers.
need for hardware coordination in the absence of memory barriers, which
permitted Alpha to sport higher CPU clock rates back in the day. However,
please note that smp_read_barrier_depends() should not be used except in
Alpha arch-specific code and within the READ_ONCE() macro.
CACHE COHERENCY VS DMA
......
Documentation/mtd/spi-nor.txt
浏览文件 @ 7bf14c28
......@@ -60,3 +60,6 @@ The main API is spi_nor_scan(). Before you call the hook, a driver should
initialize the necessary fields for spi_nor{}. Please see
drivers/mtd/spi-nor/spi-nor.c for detail. Please also refer to fsl-quadspi.c
when you want to write a new driver for a SPI NOR controller.
Another API is spi_nor_restore(), this is used to restore the status of SPI
flash chip such as addressing mode. Call it whenever detach the driver from
device or reboot the system.
Documentation/networking/index.rst
浏览文件 @ 7bf14c28
......@@ -9,6 +9,7 @@ Contents:
batman-adv
kapi
z8530book
msg_zerocopy
.. only:: subproject
......@@ -16,4 +17,3 @@ Contents:
=======
* :ref:`genindex`
Documentation/networking/msg_zerocopy.rst
浏览文件 @ 7bf14c28
......@@ -72,6 +72,10 @@ this flag, a process must first signal intent by setting a socket option:
if (setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY, &one, sizeof(one)))
error(1, errno, "setsockopt zerocopy");
Setting the socket option only works when the socket is in its initial
(TCP_CLOSED) state. Trying to set the option for a socket returned by accept(),
for example, will lead to an EBUSY error. In this case, the option should be set
to the listening socket and it will be inherited by the accepted sockets.
Transmission
------------
......
Documentation/power/pci.txt
浏览文件 @ 7bf14c28
......@@ -994,6 +994,17 @@ into D0 going forward), but if it is in runtime suspend in pci_pm_thaw_noirq(),
the function will set the power.direct_complete flag for it (to make the PM core
skip the subsequent "thaw" callbacks for it) and return.
Setting the DPM_FLAG_LEAVE_SUSPENDED flag means that the driver prefers the
device to be left in suspend after system-wide transitions to the working state.
This flag is checked by the PM core, but the PCI bus type informs the PM core
which devices may be left in suspend from its perspective (that happens during
the "noirq" phase of system-wide suspend and analogous transitions) and next it
uses the dev_pm_may_skip_resume() helper to decide whether or not to return from
pci_pm_resume_noirq() early, as the PM core will skip the remaining resume
callbacks for the device during the transition under way and will set its
runtime PM status to "suspended" if dev_pm_may_skip_resume() returns "true" for
it.
3.2. Device Runtime Power Management
------------------------------------
In addition to providing device power management callbacks PCI device drivers
......
Documentation/power/regulator/machine.txt
浏览文件 @ 7bf14c28
......@@ -23,16 +23,12 @@ struct regulator_consumer_supply {
e.g. for the machine above
static struct regulator_consumer_supply regulator1_consumers[] = {
{
.dev_name = "dev_name(consumer B)",
.supply = "Vcc",
},};
REGULATOR_SUPPLY("Vcc", "consumer B"),
};
static struct regulator_consumer_supply regulator2_consumers[] = {
{
.dev = "dev_name(consumer A"),
.supply = "Vcc",
},};
REGULATOR_SUPPLY("Vcc", "consumer A"),
};
This maps Regulator-1 to the 'Vcc' supply for Consumer B and maps Regulator-2
to the 'Vcc' supply for Consumer A.
......@@ -78,20 +74,20 @@ static struct regulator_init_data regulator2_data = {
Finally the regulator devices must be registered in the usual manner.
static struct platform_device regulator_devices[] = {
{
.name = "regulator",
.id = DCDC_1,
.dev = {
.platform_data = &regulator1_data,
{
.name = "regulator",
.id = DCDC_1,
.dev = {
.platform_data = &regulator1_data,
},
},
},
{
.name = "regulator",
.id = DCDC_2,
.dev = {
.platform_data = &regulator2_data,
{
.name = "regulator",
.id = DCDC_2,
.dev = {
.platform_data = &regulator2_data,
},
},
},
};
/* register regulator 1 device */
platform_device_register(&regulator_devices[0]);
......
Documentation/process/kernel-enforcement-statement.rst
浏览文件 @ 7bf14c28
......@@ -118,6 +118,7 @@ we might work for today, have in the past, or will in the future.
- Mike Marshall
- Chris Mason
- Paul E. McKenney
- Arnaldo Carvalho de Melo
- David S. Miller
- Ingo Molnar
- Kuninori Morimoto
......
Documentation/thermal/cpu-cooling-api.txt
浏览文件 @ 7bf14c28
......@@ -26,39 +26,16 @@ the user. The registration APIs returns the cooling device pointer.
clip_cpus: cpumask of cpus where the frequency constraints will happen.
1.1.2 struct thermal_cooling_device *of_cpufreq_cooling_register(
struct device_node *np, const struct cpumask *clip_cpus)
struct cpufreq_policy *policy)
This interface function registers the cpufreq cooling device with
the name "thermal-cpufreq-%x" linking it with a device tree node, in
order to bind it via the thermal DT code. This api can support multiple
instances of cpufreq cooling devices.
np: pointer to the cooling device device tree node
clip_cpus: cpumask of cpus where the frequency constraints will happen.
policy: CPUFreq policy.
1.1.3 struct thermal_cooling_device *cpufreq_power_cooling_register(
const struct cpumask *clip_cpus, u32 capacitance,
get_static_t plat_static_func)
Similar to cpufreq_cooling_register, this function registers a cpufreq
cooling device. Using this function, the cooling device will
implement the power extensions by using a simple cpu power model. The
cpus must have registered their OPPs using the OPP library.
The additional parameters are needed for the power model (See 2. Power
models). "capacitance" is the dynamic power coefficient (See 2.1
Dynamic power). "plat_static_func" is a function to calculate the
static power consumed by these cpus (See 2.2 Static power).
1.1.4 struct thermal_cooling_device *of_cpufreq_power_cooling_register(
struct device_node *np, const struct cpumask *clip_cpus, u32 capacitance,
get_static_t plat_static_func)
Similar to cpufreq_power_cooling_register, this function register a
cpufreq cooling device with power extensions using the device tree
information supplied by the np parameter.
1.1.5 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
1.1.3 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
This interface function unregisters the "thermal-cpufreq-%x" cooling device.
......@@ -67,20 +44,14 @@ information supplied by the np parameter.
2. Power models
The power API registration functions provide a simple power model for
CPUs. The current power is calculated as dynamic + (optionally)
static power. This power model requires that the operating-points of
CPUs. The current power is calculated as dynamic power (static power isn't
supported currently). This power model requires that the operating-points of
the CPUs are registered using the kernel's opp library and the
`cpufreq_frequency_table` is assigned to the `struct device` of the
cpu. If you are using CONFIG_CPUFREQ_DT then the
`cpufreq_frequency_table` should already be assigned to the cpu
device.
The `plat_static_func` parameter of `cpufreq_power_cooling_register()`
and `of_cpufreq_power_cooling_register()` is optional. If you don't
provide it, only dynamic power will be considered.
2.1 Dynamic power
The dynamic power consumption of a processor depends on many factors.
For a given processor implementation the primary factors are:
......@@ -119,79 +90,3 @@ mW/MHz/uVolt^2. Typical values for mobile CPUs might lie in range
from 100 to 500. For reference, the approximate values for the SoC in
ARM's Juno Development Platform are 530 for the Cortex-A57 cluster and
140 for the Cortex-A53 cluster.
2.2 Static power
Static leakage power consumption depends on a number of factors. For a
given circuit implementation the primary factors are:
- Time the circuit spends in each 'power state'
- Temperature
- Operating voltage
- Process grade
The time the circuit spends in each 'power state' for a given
evaluation period at first order means OFF or ON. However,
'retention' states can also be supported that reduce power during
inactive periods without loss of context.
Note: The visibility of state entries to the OS can vary, according to
platform specifics, and this can then impact the accuracy of a model
based on OS state information alone. It might be possible in some
cases to extract more accurate information from system resources.
The temperature, operating voltage and process 'grade' (slow to fast)
of the circuit are all significant factors in static leakage power
consumption. All of these have complex relationships to static power.
Circuit implementation specific factors include the chosen silicon
process as well as the type, number and size of transistors in both
the logic gates and any RAM elements included.
The static power consumption modelling must take into account the
power managed regions that are implemented. Taking the example of an
ARM processor cluster, the modelling would take into account whether
each CPU can be powered OFF separately or if only a single power
region is implemented for the complete cluster.
In one view, there are others, a static power consumption model can
then start from a set of reference values for each power managed
region (e.g. CPU, Cluster/L2) in each state (e.g. ON, OFF) at an
arbitrary process grade, voltage and temperature point. These values
are then scaled for all of the following: the time in each state, the
process grade, the current temperature and the operating voltage.
However, since both implementation specific and complex relationships
dominate the estimate, the appropriate interface to the model from the
cpu cooling device is to provide a function callback that calculates
the static power in this platform. When registering the cpu cooling
device pass a function pointer that follows the `get_static_t`
prototype:
int plat_get_static(cpumask_t *cpumask, int interval,
unsigned long voltage, u32 &power);
`cpumask` is the cpumask of the cpus involved in the calculation.
`voltage` is the voltage at which they are operating. The function
should calculate the average static power for the last `interval`
milliseconds. It returns 0 on success, -E* on error. If it
succeeds, it should store the static power in `power`. Reading the
temperature of the cpus described by `cpumask` is left for
plat_get_static() to do as the platform knows best which thermal
sensor is closest to the cpu.
If `plat_static_func` is NULL, static power is considered to be
negligible for this platform and only dynamic power is considered.
The platform specific callback can then use any combination of tables
and/or equations to permute the estimated value. Process grade
information is not passed to the model since access to such data, from
on-chip measurement capability or manufacture time data, is platform
specific.
Note: the significance of static power for CPUs in comparison to
dynamic power is highly dependent on implementation. Given the
potential complexity in implementation, the importance and accuracy of
its inclusion when using cpu cooling devices should be assessed on a
case by case basis.
Documentation/usb/gadget-testing.txt
浏览文件 @ 7bf14c28
......@@ -693,7 +693,7 @@ such specification consists of a number of lines with an inverval value
in each line. The rules stated above are best illustrated with an example:
# mkdir functions/uvc.usb0/control/header/h
# cd functions/uvc.usb0/control/header/h
# cd functions/uvc.usb0/control/
# ln -s header/h class/fs
# ln -s header/h class/ss
# mkdir -p functions/uvc.usb0/streaming/uncompressed/u/360p
......
Documentation/virtual/kvm/api.txt
浏览文件 @ 7bf14c28
......@@ -3403,7 +3403,53 @@ invalid, if invalid pages are written to (e.g. after the end of memory)
or if no page table is present for the addresses (e.g. when using
hugepages).
4.109 KVM_MEMORY_ENCRYPT_OP
4.109 KVM_PPC_GET_CPU_CHAR
Capability: KVM_CAP_PPC_GET_CPU_CHAR
Architectures: powerpc
Type: vm ioctl
Parameters: struct kvm_ppc_cpu_char (out)
Returns: 0 on successful completion
-EFAULT if struct kvm_ppc_cpu_char cannot be written
This ioctl gives userspace information about certain characteristics
of the CPU relating to speculative execution of instructions and
possible information leakage resulting from speculative execution (see
CVE-2017-5715, CVE-2017-5753 and CVE-2017-5754). The information is
returned in struct kvm_ppc_cpu_char, which looks like this:
struct kvm_ppc_cpu_char {
__u64 character; /* characteristics of the CPU */
__u64 behaviour; /* recommended software behaviour */
__u64 character_mask; /* valid bits in character */
__u64 behaviour_mask; /* valid bits in behaviour */
};
For extensibility, the character_mask and behaviour_mask fields
indicate which bits of character and behaviour have been filled in by
the kernel. If the set of defined bits is extended in future then
userspace will be able to tell whether it is running on a kernel that
knows about the new bits.
The character field describes attributes of the CPU which can help
with preventing inadvertent information disclosure - specifically,
whether there is an instruction to flash-invalidate the L1 data cache
(ori 30,30,0 or mtspr SPRN_TRIG2,rN), whether the L1 data cache is set
to a mode where entries can only be used by the thread that created
them, whether the bcctr[l] instruction prevents speculation, and
whether a speculation barrier instruction (ori 31,31,0) is provided.
The behaviour field describes actions that software should take to
prevent inadvertent information disclosure, and thus describes which
vulnerabilities the hardware is subject to; specifically whether the
L1 data cache should be flushed when returning to user mode from the
kernel, and whether a speculation barrier should be placed between an
array bounds check and the array access.
These fields use the same bit definitions as the new
H_GET_CPU_CHARACTERISTICS hypercall.
4.110 KVM_MEMORY_ENCRYPT_OP
Capability: basic
Architectures: x86
......@@ -3419,7 +3465,7 @@ Currently, this ioctl is used for issuing Secure Encrypted Virtualization
(SEV) commands on AMD Processors. The SEV commands are defined in
Documentation/virtual/kvm/amd-memory-encryption.txt.
4.110 KVM_MEMORY_ENCRYPT_REG_REGION
4.111 KVM_MEMORY_ENCRYPT_REG_REGION
Capability: basic
Architectures: x86
......@@ -3442,7 +3488,7 @@ Note: The current SEV key management spec does not provide commands to
swap or migrate (move) ciphertext pages. Hence, for now we pin the guest
memory region registered with the ioctl.
4.111 KVM_MEMORY_ENCRYPT_UNREG_REGION
4.112 KVM_MEMORY_ENCRYPT_UNREG_REGION
Capability: basic
Architectures: x86
......@@ -3453,6 +3499,7 @@ Returns: 0 on success; -1 on error
This ioctl can be used to unregister the guest memory region registered
with KVM_MEMORY_ENCRYPT_REG_REGION ioctl above.
5. The kvm_run structure
------------------------
......
Documentation/vm/zswap.txt
浏览文件 @ 7bf14c28
......@@ -98,5 +98,25 @@ request is made for a page in an old zpool, it is uncompressed using its
original compressor. Once all pages are removed from an old zpool, the zpool
and its compressor are freed.
Some of the pages in zswap are same-value filled pages (i.e. contents of the
page have same value or repetitive pattern). These pages include zero-filled
pages and they are handled differently. During store operation, a page is
checked if it is a same-value filled page before compressing it. If true, the
compressed length of the page is set to zero and the pattern or same-filled
value is stored.
Same-value filled pages identification feature is enabled by default and can be
disabled at boot time by setting the "same_filled_pages_enabled" attribute to 0,
e.g. zswap.same_filled_pages_enabled=0. It can also be enabled and disabled at
runtime using the sysfs "same_filled_pages_enabled" attribute, e.g.
echo 1 > /sys/module/zswap/parameters/same_filled_pages_enabled
When zswap same-filled page identification is disabled at runtime, it will stop
checking for the same-value filled pages during store operation. However, the
existing pages which are marked as same-value filled pages remain stored
unchanged in zswap until they are either loaded or invalidated.
A debugfs interface is provided for various statistic about pool size, number
of pages stored, and various counters for the reasons pages are rejected.
of pages stored, same-value filled pages and various counters for the reasons
pages are rejected.
Documentation/x86/intel_rdt_ui.txt
浏览文件 @ 7bf14c28
......@@ -7,15 +7,24 @@ Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@intel.com>
This feature is enabled by the CONFIG_INTEL_RDT Kconfig and the
X86 /proc/cpuinfo flag bits "rdt", "cqm", "cat_l3" and "cdp_l3".
X86 /proc/cpuinfo flag bits:
RDT (Resource Director Technology) Allocation - "rdt_a"
CAT (Cache Allocation Technology) - "cat_l3", "cat_l2"
CDP (Code and Data Prioritization ) - "cdp_l3", "cdp_l2"
CQM (Cache QoS Monitoring) - "cqm_llc", "cqm_occup_llc"
MBM (Memory Bandwidth Monitoring) - "cqm_mbm_total", "cqm_mbm_local"
MBA (Memory Bandwidth Allocation) - "mba"
To use the feature mount the file system:
# mount -t resctrl resctrl [-o cdp] /sys/fs/resctrl
# mount -t resctrl resctrl [-o cdp[,cdpl2]] /sys/fs/resctrl
mount options are:
"cdp": Enable code/data prioritization in L3 cache allocations.
"cdpl2": Enable code/data prioritization in L2 cache allocations.
L2 and L3 CDP are controlled seperately.
RDT features are orthogonal. A particular system may support only
monitoring, only control, or both monitoring and control.
......
Documentation/x86/pti.txt 0 → 100644
浏览文件 @ 7bf14c28
Overview
========
Page Table Isolation (pti, previously known as KAISER[1]) is a
countermeasure against attacks on the shared user/kernel address
space such as the "Meltdown" approach[2].
To mitigate this class of attacks, we create an independent set of
page tables for use only when running userspace applications. When
the kernel is entered via syscalls, interrupts or exceptions, the
page tables are switched to the full "kernel" copy. When the system
switches back to user mode, the user copy is used again.
The userspace page tables contain only a minimal amount of kernel
data: only what is needed to enter/exit the kernel such as the
entry/exit functions themselves and the interrupt descriptor table
(IDT). There are a few strictly unnecessary things that get mapped
such as the first C function when entering an interrupt (see
comments in pti.c).
This approach helps to ensure that side-channel attacks leveraging
the paging structures do not function when PTI is enabled. It can be
enabled by setting CONFIG_PAGE_TABLE_ISOLATION=y at compile time.
Once enabled at compile-time, it can be disabled at boot with the
'nopti' or 'pti=' kernel parameters (see kernel-parameters.txt).
Page Table Management
=====================
When PTI is enabled, the kernel manages two sets of page tables.
The first set is very similar to the single set which is present in
kernels without PTI. This includes a complete mapping of userspace
that the kernel can use for things like copy_to_user().
Although _complete_, the user portion of the kernel page tables is
crippled by setting the NX bit in the top level. This ensures
that any missed kernel->user CR3 switch will immediately crash
userspace upon executing its first instruction.
The userspace page tables map only the kernel data needed to enter
and exit the kernel. This data is entirely contained in the 'struct
cpu_entry_area' structure which is placed in the fixmap which gives
each CPU's copy of the area a compile-time-fixed virtual address.
For new userspace mappings, the kernel makes the entries in its
page tables like normal. The only difference is when the kernel
makes entries in the top (PGD) level. In addition to setting the
entry in the main kernel PGD, a copy of the entry is made in the
userspace page tables' PGD.
This sharing at the PGD level also inherently shares all the lower
layers of the page tables. This leaves a single, shared set of
userspace page tables to manage. One PTE to lock, one set of
accessed bits, dirty bits, etc...
Overhead
========
Protection against side-channel attacks is important. But,
this protection comes at a cost:
1. Increased Memory Use
a. Each process now needs an order-1 PGD instead of order-0.
(Consumes an additional 4k per process).
b. The 'cpu_entry_area' structure must be 2MB in size and 2MB
aligned so that it can be mapped by setting a single PMD
entry. This consumes nearly 2MB of RAM once the kernel
is decompressed, but no space in the kernel image itself.
2. Runtime Cost
a. CR3 manipulation to switch between the page table copies
must be done at interrupt, syscall, and exception entry
and exit (it can be skipped when the kernel is interrupted,
though.) Moves to CR3 are on the order of a hundred
cycles, and are required at every entry and exit.
b. A "trampoline" must be used for SYSCALL entry. This
trampoline depends on a smaller set of resources than the
non-PTI SYSCALL entry code, so requires mapping fewer
things into the userspace page tables. The downside is
that stacks must be switched at entry time.
c. Global pages are disabled for all kernel structures not
mapped into both kernel and userspace page tables. This
feature of the MMU allows different processes to share TLB
entries mapping the kernel. Losing the feature means more
TLB misses after a context switch. The actual loss of
performance is very small, however, never exceeding 1%.
d. Process Context IDentifiers (PCID) is a CPU feature that
allows us to skip flushing the entire TLB when switching page
tables by setting a special bit in CR3 when the page tables
are changed. This makes switching the page tables (at context
switch, or kernel entry/exit) cheaper. But, on systems with
PCID support, the context switch code must flush both the user
and kernel entries out of the TLB. The user PCID TLB flush is
deferred until the exit to userspace, minimizing the cost.
See intel.com/sdm for the gory PCID/INVPCID details.
e. The userspace page tables must be populated for each new
process. Even without PTI, the shared kernel mappings
are created by copying top-level (PGD) entries into each
new process. But, with PTI, there are now *two* kernel
mappings: one in the kernel page tables that maps everything
and one for the entry/exit structures. At fork(), we need to
copy both.
f. In addition to the fork()-time copying, there must also
be an update to the userspace PGD any time a set_pgd() is done
on a PGD used to map userspace. This ensures that the kernel
and userspace copies always map the same userspace
memory.
g. On systems without PCID support, each CR3 write flushes
the entire TLB. That means that each syscall, interrupt
or exception flushes the TLB.
h. INVPCID is a TLB-flushing instruction which allows flushing
of TLB entries for non-current PCIDs. Some systems support
PCIDs, but do not support INVPCID. On these systems, addresses
can only be flushed from the TLB for the current PCID. When
flushing a kernel address, we need to flush all PCIDs, so a
single kernel address flush will require a TLB-flushing CR3
write upon the next use of every PCID.
Possible Future Work
====================
1. We can be more careful about not actually writing to CR3
unless its value is actually changed.
2. Allow PTI to be enabled/disabled at runtime in addition to the
boot-time switching.
Testing
========
To test stability of PTI, the following test procedure is recommended,
ideally doing all of these in parallel:
1. Set CONFIG_DEBUG_ENTRY=y
2. Run several copies of all of the tools/testing/selftests/x86/ tests
(excluding MPX and protection_keys) in a loop on multiple CPUs for
several minutes. These tests frequently uncover corner cases in the
kernel entry code. In general, old kernels might cause these tests
themselves to crash, but they should never crash the kernel.
3. Run the 'perf' tool in a mode (top or record) that generates many
frequent performance monitoring non-maskable interrupts (see "NMI"
in /proc/interrupts). This exercises the NMI entry/exit code which
is known to trigger bugs in code paths that did not expect to be
interrupted, including nested NMIs. Using "-c" boosts the rate of
NMIs, and using two -c with separate counters encourages nested NMIs
and less deterministic behavior.
while true; do perf record -c 10000 -e instructions,cycles -a sleep 10; done
4. Launch a KVM virtual machine.
5. Run 32-bit binaries on systems supporting the SYSCALL instruction.
This has been a lightly-tested code path and needs extra scrutiny.
Debugging
=========
Bugs in PTI cause a few different signatures of crashes
that are worth noting here.
* Failures of the selftests/x86 code. Usually a bug in one of the
more obscure corners of entry_64.S
* Crashes in early boot, especially around CPU bringup. Bugs
in the trampoline code or mappings cause these.
* Crashes at the first interrupt. Caused by bugs in entry_64.S,
like screwing up a page table switch. Also caused by
incorrectly mapping the IRQ handler entry code.
* Crashes at the first NMI. The NMI code is separate from main
interrupt handlers and can have bugs that do not affect
normal interrupts. Also caused by incorrectly mapping NMI
code. NMIs that interrupt the entry code must be very
careful and can be the cause of crashes that show up when
running perf.
* Kernel crashes at the first exit to userspace. entry_64.S
bugs, or failing to map some of the exit code.
* Crashes at first interrupt that interrupts userspace. The paths
in entry_64.S that return to userspace are sometimes separate
from the ones that return to the kernel.
* Double faults: overflowing the kernel stack because of page
faults upon page faults. Caused by touching non-pti-mapped
data in the entry code, or forgetting to switch to kernel
CR3 before calling into C functions which are not pti-mapped.
* Userspace segfaults early in boot, sometimes manifesting
as mount(8) failing to mount the rootfs. These have
tended to be TLB invalidation issues. Usually invalidating
the wrong PCID, or otherwise missing an invalidation.
1. https://gruss.cc/files/kaiser.pdf
2. https://meltdownattack.com/meltdown.pdf
Documentation/x86/x86_64/mm.txt
浏览文件 @ 7bf14c28
<previous description obsolete, deleted>
Virtual memory map with 4 level page tables:
0000000000000000 - 00007fffffffffff (=47 bits) user space, different per mm
......@@ -14,13 +12,17 @@ ffffea0000000000 - ffffeaffffffffff (=40 bits) virtual memory map (1TB)
... unused hole ...
ffffec0000000000 - fffffbffffffffff (=44 bits) kasan shadow memory (16TB)
... unused hole ...
vaddr_end for KASLR
fffffe0000000000 - fffffe7fffffffff (=39 bits) cpu_entry_area mapping
fffffe8000000000 - fffffeffffffffff (=39 bits) LDT remap for PTI
ffffff0000000000 - ffffff7fffffffff (=39 bits) %esp fixup stacks
... unused hole ...
ffffffef00000000 - fffffffeffffffff (=64 GB) EFI region mapping space
... unused hole ...
ffffffff80000000 - ffffffff9fffffff (=512 MB) kernel text mapping, from phys 0
ffffffffa0000000 - ffffffffff5fffff (=1526 MB) module mapping space (variable)
ffffffffff600000 - ffffffffffdfffff (=8 MB) vsyscalls
ffffffffa0000000 - [fixmap start] (~1526 MB) module mapping space (variable)
[fixmap start] - ffffffffff5fffff kernel-internal fixmap range
ffffffffff600000 - ffffffffff600fff (=4 kB) legacy vsyscall ABI
ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole
Virtual memory map with 5 level page tables:
......@@ -29,26 +31,31 @@ Virtual memory map with 5 level page tables:
hole caused by [56:63] sign extension
ff00000000000000 - ff0fffffffffffff (=52 bits) guard hole, reserved for hypervisor
ff10000000000000 - ff8fffffffffffff (=55 bits) direct mapping of all phys. memory
ff90000000000000 - ff91ffffffffffff (=49 bits) hole
ff92000000000000 - ffd1ffffffffffff (=54 bits) vmalloc/ioremap space
ff90000000000000 - ff9fffffffffffff (=52 bits) LDT remap for PTI
ffa0000000000000 - ffd1ffffffffffff (=54 bits) vmalloc/ioremap space (12800 TB)
ffd2000000000000 - ffd3ffffffffffff (=49 bits) hole
ffd4000000000000 - ffd5ffffffffffff (=49 bits) virtual memory map (512TB)
... unused hole ...
ffdf000000000000 - fffffc0000000000 (=53 bits) kasan shadow memory (8PB)
... unused hole ...
vaddr_end for KASLR
fffffe0000000000 - fffffe7fffffffff (=39 bits) cpu_entry_area mapping
... unused hole ...
ffffff0000000000 - ffffff7fffffffff (=39 bits) %esp fixup stacks
... unused hole ...
ffffffef00000000 - fffffffeffffffff (=64 GB) EFI region mapping space
... unused hole ...
ffffffff80000000 - ffffffff9fffffff (=512 MB) kernel text mapping, from phys 0
ffffffffa0000000 - ffffffffff5fffff (=1526 MB) module mapping space
ffffffffff600000 - ffffffffffdfffff (=8 MB) vsyscalls
ffffffffa0000000 - fffffffffeffffff (1520 MB) module mapping space
[fixmap start] - ffffffffff5fffff kernel-internal fixmap range
ffffffffff600000 - ffffffffff600fff (=4 kB) legacy vsyscall ABI
ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole
Architecture defines a 64-bit virtual address. Implementations can support
less. Currently supported are 48- and 57-bit virtual addresses. Bits 63
through to the most-significant implemented bit are set to either all ones
or all zero. This causes hole between user space and kernel addresses.
through to the most-significant implemented bit are sign extended.
This causes hole between user space and kernel addresses if you interpret them
as unsigned.
The direct mapping covers all memory in the system up to the highest
memory address (this means in some cases it can also include PCI memory
......@@ -58,19 +65,15 @@ vmalloc space is lazily synchronized into the different PML4/PML5 pages of
the processes using the page fault handler, with init_top_pgt as
reference.
Current X86-64 implementations support up to 46 bits of address space (64 TB),
which is our current limit. This expands into MBZ space in the page tables.
We map EFI runtime services in the 'efi_pgd' PGD in a 64Gb large virtual
memory window (this size is arbitrary, it can be raised later if needed).
The mappings are not part of any other kernel PGD and are only available
during EFI runtime calls.
The module mapping space size changes based on the CONFIG requirements for the
following fixmap section.
Note that if CONFIG_RANDOMIZE_MEMORY is enabled, the direct mapping of all
physical memory, vmalloc/ioremap space and virtual memory map are randomized.
Their order is preserved but their base will be offset early at boot time.
-Andi Kleen, Jul 2004
Be very careful vs. KASLR when changing anything here. The KASLR address
range must not overlap with anything except the KASAN shadow area, which is
correct as KASAN disables KASLR.
Documentation/xtensa/mmu.txt
浏览文件 @ 7bf14c28
......@@ -69,19 +69,10 @@ Default MMUv2-compatible layout.
| Userspace | 0x00000000 TASK_SIZE
+------------------+ 0x40000000
+------------------+
| Page table | 0x80000000
+------------------+ 0x80400000
| Page table | XCHAL_PAGE_TABLE_VADDR 0x80000000 XCHAL_PAGE_TABLE_SIZE
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0xbffff000
| KASAN shadow map | KASAN_SHADOW_START 0x80400000 KASAN_SHADOW_SIZE
+------------------+ 0x8e400000
+------------------+
| VMALLOC area | VMALLOC_START 0xc0000000 128MB - 64KB
+------------------+ VMALLOC_END
......@@ -92,6 +83,17 @@ Default MMUv2-compatible layout.
| remap area 2 |
+------------------+
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0xcffff000
+------------------+
| Cached KSEG | XCHAL_KSEG_CACHED_VADDR 0xd0000000 128MB
+------------------+
| Uncached KSEG | XCHAL_KSEG_BYPASS_VADDR 0xd8000000 128MB
......@@ -109,19 +111,10 @@ Default MMUv2-compatible layout.
| Userspace | 0x00000000 TASK_SIZE
+------------------+ 0x40000000
+------------------+
| Page table | 0x80000000
+------------------+ 0x80400000
| Page table | XCHAL_PAGE_TABLE_VADDR 0x80000000 XCHAL_PAGE_TABLE_SIZE
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0x9ffff000
| KASAN shadow map | KASAN_SHADOW_START 0x80400000 KASAN_SHADOW_SIZE
+------------------+ 0x8e400000
+------------------+
| VMALLOC area | VMALLOC_START 0xa0000000 128MB - 64KB
+------------------+ VMALLOC_END
......@@ -132,6 +125,17 @@ Default MMUv2-compatible layout.
| remap area 2 |
+------------------+
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0xaffff000
+------------------+
| Cached KSEG | XCHAL_KSEG_CACHED_VADDR 0xb0000000 256MB
+------------------+
| Uncached KSEG | XCHAL_KSEG_BYPASS_VADDR 0xc0000000 256MB
......@@ -150,19 +154,10 @@ Default MMUv2-compatible layout.
| Userspace | 0x00000000 TASK_SIZE
+------------------+ 0x40000000
+------------------+
| Page table | 0x80000000
+------------------+ 0x80400000
| Page table | XCHAL_PAGE_TABLE_VADDR 0x80000000 XCHAL_PAGE_TABLE_SIZE
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0x8ffff000
| KASAN shadow map | KASAN_SHADOW_START 0x80400000 KASAN_SHADOW_SIZE
+------------------+ 0x8e400000
+------------------+
| VMALLOC area | VMALLOC_START 0x90000000 128MB - 64KB
+------------------+ VMALLOC_END
......@@ -173,6 +168,17 @@ Default MMUv2-compatible layout.
| remap area 2 |
+------------------+
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0x9ffff000
+------------------+
| Cached KSEG | XCHAL_KSEG_CACHED_VADDR 0xa0000000 512MB
+------------------+
| Uncached KSEG | XCHAL_KSEG_BYPASS_VADDR 0xc0000000 512MB
......
MAINTAINERS
浏览文件 @ 7bf14c28
......@@ -62,7 +62,15 @@ trivial patch so apply some common sense.
7. When sending security related changes or reports to a maintainer
please Cc: security@kernel.org, especially if the maintainer
does not respond.
does not respond. Please keep in mind that the security team is
a small set of people who can be efficient only when working on
verified bugs. Please only Cc: this list when you have identified
that the bug would present a short-term risk to other users if it
were publicly disclosed. For example, reports of address leaks do
not represent an immediate threat and are better handled publicly,
and ideally, should come with a patch proposal. Please do not send
automated reports to this list either. Such bugs will be handled
better and faster in the usual public places.
8. Happy hacking.
......@@ -321,7 +329,7 @@ F: drivers/acpi/apei/
ACPI COMPONENT ARCHITECTURE (ACPICA)
M: Robert Moore <robert.moore@intel.com>
M: Lv Zheng <lv.zheng@intel.com>
M: Erik Schmauss <erik.schmauss@intel.com>
M: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
L: linux-acpi@vger.kernel.org
L: devel@acpica.org
......@@ -867,6 +875,12 @@ S: Supported
F: drivers/android/
F: drivers/staging/android/
ANDROID GOLDFISH PIC DRIVER
M: Miodrag Dinic <miodrag.dinic@mips.com>
S: Supported
F: Documentation/devicetree/bindings/interrupt-controller/google,goldfish-pic.txt
F: drivers/irqchip/irq-goldfish-pic.c
ANDROID GOLDFISH RTC DRIVER
M: Miodrag Dinic <miodrag.dinic@mips.com>
S: Supported
......@@ -1313,7 +1327,8 @@ F: tools/perf/arch/arm/util/pmu.c
F: tools/perf/arch/arm/util/auxtrace.c
F: tools/perf/arch/arm/util/cs-etm.c
F: tools/perf/arch/arm/util/cs-etm.h
F: tools/perf/util/cs-etm.h
F: tools/perf/util/cs-etm.*
F: tools/perf/util/cs-etm-decoder/*
ARM/CORGI MACHINE SUPPORT
M: Richard Purdie <rpurdie@rpsys.net>
......@@ -1583,6 +1598,7 @@ F: arch/arm/boot/dts/kirkwood*
F: arch/arm/configs/mvebu_*_defconfig
F: arch/arm/mach-mvebu/
F: arch/arm64/boot/dts/marvell/armada*
F: drivers/cpufreq/armada-37xx-cpufreq.c
F: drivers/cpufreq/mvebu-cpufreq.c
F: drivers/irqchip/irq-armada-370-xp.c
F: drivers/irqchip/irq-mvebu-*
......@@ -2383,13 +2399,6 @@ F: Documentation/devicetree/bindings/input/atmel,maxtouch.txt
F: drivers/input/touchscreen/atmel_mxt_ts.c
F: include/linux/platform_data/atmel_mxt_ts.h
ATMEL NAND DRIVER
M: Wenyou Yang <wenyou.yang@atmel.com>
M: Josh Wu <rainyfeeling@outlook.com>
L: linux-mtd@lists.infradead.org
S: Supported
F: drivers/mtd/nand/atmel/*
ATMEL SAMA5D2 ADC DRIVER
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-iio@vger.kernel.org
......@@ -2621,24 +2630,22 @@ F: fs/bfs/
F: include/uapi/linux/bfs_fs.h
BLACKFIN ARCHITECTURE
M: Steven Miao <realmz6@gmail.com>
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
T: git git://git.code.sf.net/p/adi-linux/code
W: http://blackfin.uclinux.org
S: Supported
S: Orphan
F: arch/blackfin/
BLACKFIN EMAC DRIVER
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
S: Orphan
F: drivers/net/ethernet/adi/
BLACKFIN MEDIA DRIVER
M: Scott Jiang <scott.jiang.linux@gmail.com>
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org/
S: Supported
S: Orphan
F: drivers/media/platform/blackfin/
F: drivers/media/i2c/adv7183*
F: drivers/media/i2c/vs6624*
......@@ -2646,25 +2653,25 @@ F: drivers/media/i2c/vs6624*
BLACKFIN RTC DRIVER
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
S: Orphan
F: drivers/rtc/rtc-bfin.c
BLACKFIN SDH DRIVER
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
S: Orphan
F: drivers/mmc/host/bfin_sdh.c
BLACKFIN SERIAL DRIVER
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
S: Orphan
F: drivers/tty/serial/bfin_uart.c
BLACKFIN WATCHDOG DRIVER
L: adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
W: http://blackfin.uclinux.org
S: Supported
S: Orphan
F: drivers/watchdog/bfin_wdt.c
BLINKM RGB LED DRIVER
......@@ -5141,6 +5148,12 @@ L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/skx_edac.c
EDAC-TI
M: Tero Kristo <t-kristo@ti.com>
L: linux-edac@vger.kernel.org
S: Maintained
F: drivers/edac/ti_edac.c
EDIROL UA-101/UA-1000 DRIVER
M: Clemens Ladisch <clemens@ladisch.de>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
......@@ -5151,15 +5164,15 @@ F: sound/usb/misc/ua101.c
EFI TEST DRIVER
L: linux-efi@vger.kernel.org
M: Ivan Hu <ivan.hu@canonical.com>
M: Matt Fleming <matt@codeblueprint.co.uk>
M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
S: Maintained
F: drivers/firmware/efi/test/
EFI VARIABLE FILESYSTEM
M: Matthew Garrett <matthew.garrett@nebula.com>
M: Jeremy Kerr <jk@ozlabs.org>
M: Matt Fleming <matt@codeblueprint.co.uk>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git
M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
L: linux-efi@vger.kernel.org
S: Maintained
F: fs/efivarfs/
......@@ -5320,7 +5333,6 @@ S: Supported
F: security/integrity/evm/
EXTENSIBLE FIRMWARE INTERFACE (EFI)
M: Matt Fleming <matt@codeblueprint.co.uk>
M: Ard Biesheuvel <ard.biesheuvel@linaro.org>
L: linux-efi@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git
......@@ -5431,7 +5443,7 @@ F: drivers/media/tuners/fc2580*
FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
M: Johannes Thumshirn <jth@kernel.org>
L: fcoe-devel@open-fcoe.org
L: linux-scsi@vger.kernel.org
W: www.Open-FCoE.org
S: Supported
F: drivers/scsi/libfc/
......@@ -6612,16 +6624,6 @@ L: linux-i2c@vger.kernel.org
S: Maintained
F: drivers/i2c/i2c-stub.c
i386 BOOT CODE
M: "H. Peter Anvin" <hpa@zytor.com>
S: Maintained
F: arch/x86/boot/
i386 SETUP CODE / CPU ERRATA WORKAROUNDS
M: "H. Peter Anvin" <hpa@zytor.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup.git
S: Maintained
IA64 (Itanium) PLATFORM
M: Tony Luck <tony.luck@intel.com>
M: Fenghua Yu <fenghua.yu@intel.com>
......@@ -8197,6 +8199,7 @@ F: arch/*/include/asm/rwsem.h
F: include/linux/seqlock.h
F: lib/locking*.[ch]
F: kernel/locking/
X: kernel/locking/locktorture.c
LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP/Vista Dynamic Disks)
M: "Richard Russon (FlatCap)" <ldm@flatcap.org>
......@@ -8412,6 +8415,13 @@ L: linux-wireless@vger.kernel.org
S: Odd Fixes
F: drivers/net/wireless/marvell/mwl8k.c
MARVELL NAND CONTROLLER DRIVER
M: Miquel Raynal <miquel.raynal@free-electrons.com>
L: linux-mtd@lists.infradead.org
S: Maintained
F: drivers/mtd/nand/marvell_nand.c
F: Documentation/devicetree/bindings/mtd/marvell-nand.txt
MARVELL SOC MMC/SD/SDIO CONTROLLER DRIVER
M: Nicolas Pitre <nico@fluxnic.net>
S: Odd Fixes
......@@ -8959,7 +8969,7 @@ L: linux-mtd@lists.infradead.org
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
T: git git://git.infradead.org/linux-mtd.git master
T: git git://git.infradead.org/l2-mtd.git master
T: git git://git.infradead.org/linux-mtd.git mtd/next
S: Maintained
F: Documentation/devicetree/bindings/mtd/
F: drivers/mtd/
......@@ -9048,6 +9058,14 @@ F: drivers/media/platform/atmel/atmel-isc.c
F: drivers/media/platform/atmel/atmel-isc-regs.h
F: devicetree/bindings/media/atmel-isc.txt
MICROCHIP / ATMEL NAND DRIVER
M: Wenyou Yang <wenyou.yang@microchip.com>
M: Josh Wu <rainyfeeling@outlook.com>
L: linux-mtd@lists.infradead.org
S: Supported
F: drivers/mtd/nand/atmel/*
F: Documentation/devicetree/bindings/mtd/atmel-nand.txt
MICROCHIP KSZ SERIES ETHERNET SWITCH DRIVER
M: Woojung Huh <Woojung.Huh@microchip.com>
M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
......@@ -9090,6 +9108,7 @@ F: drivers/usb/image/microtek.*
MIPS
M: Ralf Baechle <ralf@linux-mips.org>
M: James Hogan <jhogan@kernel.org>
L: linux-mips@linux-mips.org
W: http://www.linux-mips.org/
T: git git://git.linux-mips.org/pub/scm/ralf/linux.git
......@@ -9347,7 +9366,7 @@ L: linux-mtd@lists.infradead.org
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
T: git git://git.infradead.org/linux-mtd.git nand/fixes
T: git git://git.infradead.org/l2-mtd.git nand/next
T: git git://git.infradead.org/linux-mtd.git nand/next
S: Maintained
F: drivers/mtd/nand/
F: include/linux/mtd/*nand*.h
......@@ -9643,8 +9662,8 @@ F: include/uapi/linux/sunrpc/
NILFS2 FILESYSTEM
M: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
L: linux-nilfs@vger.kernel.org
W: http://nilfs.sourceforge.net/
W: http://nilfs.osdn.jp/
W: https://nilfs.sourceforge.io/
W: https://nilfs.osdn.jp/
T: git git://github.com/konis/nilfs2.git
S: Supported
F: Documentation/filesystems/nilfs2.txt
......@@ -9748,6 +9767,15 @@ S: Supported
F: Documentation/filesystems/ntfs.txt
F: fs/ntfs/
NUBUS SUBSYSTEM
M: Finn Thain <fthain@telegraphics.com.au>
L: linux-m68k@lists.linux-m68k.org
S: Maintained
F: arch/*/include/asm/nubus.h
F: drivers/nubus/
F: include/linux/nubus.h
F: include/uapi/linux/nubus.h
NVIDIA (rivafb and nvidiafb) FRAMEBUFFER DRIVER
M: Antonino Daplas <adaplas@gmail.com>
L: linux-fbdev@vger.kernel.org
......@@ -9808,6 +9836,7 @@ NXP TFA9879 DRIVER
M: Peter Rosin <peda@axentia.se>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Maintained
F: Documentation/devicetree/bindings/sound/tfa9879.txt
F: sound/soc/codecs/tfa9879*
NXP-NCI NFC DRIVER
......@@ -10139,7 +10168,7 @@ F: drivers/irqchip/irq-ompic.c
F: drivers/irqchip/irq-or1k-*
OPENVSWITCH
M: Pravin Shelar <pshelar@nicira.com>
M: Pravin B Shelar <pshelar@ovn.org>
L: netdev@vger.kernel.org
L: dev@openvswitch.org
W: http://openvswitch.org
......@@ -10894,6 +10923,7 @@ F: include/linux/pm.h
F: include/linux/pm_*
F: include/linux/powercap.h
F: drivers/powercap/
F: kernel/configs/nopm.config
POWER STATE COORDINATION INTERFACE (PSCI)
M: Mark Rutland <mark.rutland@arm.com>
......@@ -11454,15 +11484,6 @@ L: linux-wireless@vger.kernel.org
S: Orphan
F: drivers/net/wireless/ray*
RCUTORTURE MODULE
M: Josh Triplett <josh@joshtriplett.org>
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
L: linux-kernel@vger.kernel.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
F: Documentation/RCU/torture.txt
F: kernel/rcu/rcutorture.c
RCUTORTURE TEST FRAMEWORK
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
M: Josh Triplett <josh@joshtriplett.org>
......@@ -11655,8 +11676,8 @@ F: drivers/mtd/nand/r852.h
RISC-V ARCHITECTURE
M: Palmer Dabbelt <palmer@sifive.com>
M: Albert Ou <albert@sifive.com>
L: patches@groups.riscv.org
T: git https://github.com/riscv/riscv-linux
L: linux-riscv@lists.infradead.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux.git
S: Supported
F: arch/riscv/
K: riscv
......@@ -12238,7 +12259,7 @@ M: Security Officers <security@kernel.org>
S: Supported
SECURITY SUBSYSTEM
M: James Morris <james.l.morris@oracle.com>
M: James Morris <jmorris@namei.org>
M: "Serge E. Hallyn" <serge@hallyn.com>
L: linux-security-module@vger.kernel.org (suggested Cc:)
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git
......@@ -12597,6 +12618,12 @@ F: include/media/soc*
F: drivers/media/i2c/soc_camera/
F: drivers/media/platform/soc_camera/
SOCIONEXT UNIPHIER SOUND DRIVER
M: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Maintained
F: sound/soc/uniphier/
SOEKRIS NET48XX LED SUPPORT
M: Chris Boot <bootc@bootc.net>
S: Maintained
......@@ -12785,7 +12812,7 @@ L: linux-mtd@lists.infradead.org
W: http://www.linux-mtd.infradead.org/
Q: http://patchwork.ozlabs.org/project/linux-mtd/list/
T: git git://git.infradead.org/linux-mtd.git spi-nor/fixes
T: git git://git.infradead.org/l2-mtd.git spi-nor/next
T: git git://git.infradead.org/linux-mtd.git spi-nor/next
S: Maintained
F: drivers/mtd/spi-nor/
F: include/linux/mtd/spi-nor.h
......@@ -13120,6 +13147,7 @@ F: drivers/dma/dw/
SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER
M: Jie Deng <jiedeng@synopsys.com>
M: Jose Abreu <Jose.Abreu@synopsys.com>
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/synopsys/
......@@ -13495,6 +13523,7 @@ M: Mika Westerberg <mika.westerberg@linux.intel.com>
M: Yehezkel Bernat <yehezkel.bernat@intel.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git
S: Maintained
F: Documentation/admin-guide/thunderbolt.rst
F: drivers/thunderbolt/
F: include/linux/thunderbolt.h
......@@ -13770,6 +13799,18 @@ L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/topstar-laptop.c
TORTURE-TEST MODULES
M: Davidlohr Bueso <dave@stgolabs.net>
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
M: Josh Triplett <josh@joshtriplett.org>
L: linux-kernel@vger.kernel.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
F: Documentation/RCU/torture.txt
F: kernel/torture.c
F: kernel/rcu/rcutorture.c
F: kernel/locking/locktorture.c
TOSHIBA ACPI EXTRAS DRIVER
M: Azael Avalos <coproscefalo@gmail.com>
L: platform-driver-x86@vger.kernel.org
......@@ -13853,6 +13894,13 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial.git
S: Maintained
K: ^Subject:.*(?i)trivial
TEMPO SEMICONDUCTOR DRIVERS
M: Steven Eckhoff <steven.eckhoff.opensource@gmail.com>
S: Maintained
F: sound/soc/codecs/tscs*.c
F: sound/soc/codecs/tscs*.h
F: Documentation/devicetree/bindings/sound/tscs*.txt
TTY LAYER
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
M: Jiri Slaby <jslaby@suse.com>
......@@ -14651,6 +14699,7 @@ W: http://www.slimlogic.co.uk/?p=48
T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git
S: Supported
F: Documentation/devicetree/bindings/regulator/
F: Documentation/power/regulator/
F: drivers/regulator/
F: include/dt-bindings/regulator/
F: include/linux/regulator/
......@@ -14861,7 +14910,7 @@ F: net/x25/
X86 ARCHITECTURE (32-BIT AND 64-BIT)
M: Thomas Gleixner <tglx@linutronix.de>
M: Ingo Molnar <mingo@redhat.com>
M: "H. Peter Anvin" <hpa@zytor.com>
R: "H. Peter Anvin" <hpa@zytor.com>
M: x86@kernel.org
L: linux-kernel@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
......
Makefile
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......@@ -2,7 +2,7 @@
VERSION = 4
PATCHLEVEL = 15
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION =
NAME = Fearless Coyote
# *DOCUMENTATION*
......@@ -484,26 +484,6 @@ CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
endif
KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
# Quiet clang warning: comparison of unsigned expression < 0 is always false
KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
# source of a reference will be _MergedGlobals and not on of the whitelisted names.
# See modpost pattern 2
KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
else
# These warnings generated too much noise in a regular build.
# Use make W=1 to enable them (see scripts/Makefile.extrawarn)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)
endif
ifeq ($(config-targets),1)
......@@ -716,6 +696,29 @@ ifdef CONFIG_CC_STACKPROTECTOR
endif
KBUILD_CFLAGS += $(stackp-flag)
ifeq ($(cc-name),clang)
KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
# Quiet clang warning: comparison of unsigned expression < 0 is always false
KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
# source of a reference will be _MergedGlobals and not on of the whitelisted names.
# See modpost pattern 2
KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
else
# These warnings generated too much noise in a regular build.
# Use make W=1 to enable them (see scripts/Makefile.extrawarn)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)
endif
ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
else
......@@ -789,6 +792,9 @@ KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
# disable invalid "can't wrap" optimizations for signed / pointers
KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
# Make sure -fstack-check isn't enabled (like gentoo apparently did)
KBUILD_CFLAGS += $(call cc-option,-fno-stack-check,)
# conserve stack if available
KBUILD_CFLAGS += $(call cc-option,-fconserve-stack)
......
arch/Kconfig
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......@@ -234,8 +234,8 @@ config ARCH_HAS_FORTIFY_SOURCE
config ARCH_HAS_SET_MEMORY
bool
# Select if arch init_task initializer is different to init/init_task.c
config ARCH_INIT_TASK
# Select if arch init_task must go in the __init_task_data section
config ARCH_TASK_STRUCT_ON_STACK
bool
# Select if arch has its private alloc_task_struct() function
......
arch/alpha/include/asm/thread_info.h
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......@@ -39,9 +39,6 @@ struct thread_info {
.preempt_count = INIT_PREEMPT_COUNT, \
}
#define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack)
/* How to get the thread information struct from C. */
register struct thread_info *__current_thread_info __asm__("$8");
#define current_thread_info() __current_thread_info
......
arch/alpha/kernel/sys_sio.c
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......@@ -102,6 +102,15 @@ sio_pci_route(void)
alpha_mv.sys.sio.route_tab);
}
static bool sio_pci_dev_irq_needs_level(const struct pci_dev *dev)
{
if ((dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) &&
(dev->class >> 8 != PCI_CLASS_BRIDGE_PCMCIA))
return false;
return true;
}
static unsigned int __init
sio_collect_irq_levels(void)
{
......@@ -110,8 +119,7 @@ sio_collect_irq_levels(void)
/* Iterate through the devices, collecting IRQ levels. */
for_each_pci_dev(dev) {
if ((dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) &&
(dev->class >> 8 != PCI_CLASS_BRIDGE_PCMCIA))
if (!sio_pci_dev_irq_needs_level(dev))
continue;
if (dev->irq)
......@@ -120,8 +128,7 @@ sio_collect_irq_levels(void)
return level_bits;
}
static void __init
sio_fixup_irq_levels(unsigned int level_bits)
static void __sio_fixup_irq_levels(unsigned int level_bits, bool reset)
{
unsigned int old_level_bits;
......@@ -139,12 +146,21 @@ sio_fixup_irq_levels(unsigned int level_bits)
*/
old_level_bits = inb(0x4d0) | (inb(0x4d1) << 8);
level_bits |= (old_level_bits & 0x71ff);
if (reset)
old_level_bits &= 0x71ff;
level_bits |= old_level_bits;
outb((level_bits >> 0) & 0xff, 0x4d0);
outb((level_bits >> 8) & 0xff, 0x4d1);
}
static inline void
sio_fixup_irq_levels(unsigned int level_bits)
{
__sio_fixup_irq_levels(level_bits, true);
}
static inline int
noname_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
......@@ -181,7 +197,14 @@ noname_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
const long min_idsel = 6, max_idsel = 14, irqs_per_slot = 5;
int irq = COMMON_TABLE_LOOKUP, tmp;
tmp = __kernel_extbl(alpha_mv.sys.sio.route_tab, irq);
return irq >= 0 ? tmp : -1;
irq = irq >= 0 ? tmp : -1;
/* Fixup IRQ level if an actual IRQ mapping is detected */
if (sio_pci_dev_irq_needs_level(dev) && irq >= 0)
__sio_fixup_irq_levels(1 << irq, false);
return irq;
}
static inline int
......
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arch/x86/kernel/aperture_64.c
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arch/x86/kernel/apic/msi.c
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arch/x86/kernel/apic/vector.c
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arch/x86/kernel/apic/x2apic_uv_x.c
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arch/x86/mm/ioremap.c
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arch/x86/mm/kasan_init_64.c
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arch/x86/mm/kaslr.c
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arch/x86/mm/kmmio.c
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arch/x86/mm/mem_encrypt.c
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arch/x86/mm/mem_encrypt_boot.S
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arch/x86/mm/pgtable.c
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arch/x86/pci/common.c
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arch/x86/pci/fixup.c
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arch/x86/pci/intel_mid_pci.c
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arch/x86/platform/efi/efi_64.c
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arch/x86/platform/uv/tlb_uv.c
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arch/x86/platform/uv/uv_irq.c
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arch/x86/power/cpu.c
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arch/x86/tools/Makefile
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arch/x86/xen/apic.c
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arch/x86/xen/enlighten.c
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arch/x86/xen/setup.c
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arch/x86/xen/spinlock.c
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arch/xtensa/include/asm/current.h
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arch/xtensa/include/asm/fixmap.h
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arch/xtensa/include/asm/futex.h
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arch/xtensa/include/asm/highmem.h
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arch/xtensa/include/asm/page.h
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arch/xtensa/include/asm/pgtable.h
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arch/xtensa/include/asm/ptrace.h
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arch/xtensa/include/asm/regs.h
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arch/xtensa/include/asm/string.h
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arch/xtensa/include/asm/traps.h
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arch/xtensa/include/asm/uaccess.h
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arch/xtensa/kernel/Makefile
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arch/xtensa/kernel/align.S
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arch/xtensa/kernel/asm-offsets.c
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arch/xtensa/kernel/coprocessor.S
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arch/xtensa/kernel/entry.S
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arch/xtensa/kernel/head.S
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arch/xtensa/kernel/module.c
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arch/xtensa/kernel/pci.c
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arch/xtensa/kernel/process.c
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arch/xtensa/kernel/setup.c
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arch/xtensa/kernel/signal.c
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arch/xtensa/kernel/traps.c
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arch/xtensa/kernel/vectors.S
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arch/xtensa/kernel/vmlinux.lds.S
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arch/xtensa/kernel/xtensa_ksyms.c
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arch/xtensa/lib/checksum.S
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arch/xtensa/lib/memcopy.S
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arch/xtensa/lib/memset.S
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arch/xtensa/lib/pci-auto.c
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arch/xtensa/lib/strncpy_user.S
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arch/xtensa/lib/strnlen_user.S
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arch/xtensa/lib/usercopy.S
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arch/xtensa/mm/Makefile
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arch/xtensa/mm/cache.c
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arch/xtensa/mm/fault.c
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arch/xtensa/mm/init.c
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arch/xtensa/mm/mmu.c
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arch/xtensa/mm/tlb.c
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arch/xtensa/platforms/iss/console.c
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arch/xtensa/platforms/iss/network.c
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block/bfq-cgroup.c
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block/blk-mq-sysfs.c
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block/blk-sysfs.c
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block/blk-timeout.c
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block/blk.h
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block/bounce.c
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block/bsg-lib.c
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block/bsg.c
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block/deadline-iosched.c
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block/elevator.c
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block/genhd.c
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block/kyber-iosched.c
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block/mq-deadline.c
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block/partitions/msdos.c
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block/scsi_ioctl.c
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crypto/Kconfig
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crypto/af_alg.c
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crypto/algapi.c
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crypto/algif_aead.c
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crypto/algif_skcipher.c
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crypto/chacha20poly1305.c
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crypto/hmac.c
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crypto/mcryptd.c
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crypto/pcrypt.c
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crypto/rsa_helper.c
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crypto/salsa20_generic.c
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crypto/scompress.c
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crypto/shash.c
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crypto/skcipher.c
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drivers/acpi/Kconfig
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drivers/acpi/acpi_lpss.c
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drivers/acpi/acpi_video.c
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drivers/acpi/acpica/acapps.h
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drivers/acpi/acpica/acdebug.h
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drivers/acpi/acpica/acglobal.h
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drivers/acpi/acpica/aclocal.h
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drivers/acpi/acpica/acmacros.h
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drivers/acpi/acpica/acnamesp.h
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drivers/acpi/acpica/acutils.h
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drivers/acpi/acpica/dbexec.c
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drivers/acpi/acpica/dbfileio.c
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drivers/acpi/acpica/dbinput.c
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drivers/acpi/acpica/dscontrol.c
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drivers/acpi/acpica/dsfield.c
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drivers/acpi/acpica/dsobject.c
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drivers/acpi/acpica/dspkginit.c
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drivers/acpi/acpica/dsutils.c
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drivers/acpi/acpica/dswload.c
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drivers/acpi/acpica/dswload2.c
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drivers/acpi/acpica/evregion.c
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drivers/acpi/acpica/exdump.c
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drivers/acpi/acpica/hwtimer.c
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drivers/acpi/acpica/hwvalid.c
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drivers/acpi/acpica/nsaccess.c
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drivers/acpi/acpica/nsconvert.c
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drivers/acpi/acpica/nsnames.c
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drivers/acpi/acpica/nssearch.c
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drivers/acpi/acpica/nsxfeval.c
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drivers/acpi/acpica/psargs.c
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drivers/acpi/acpica/psobject.c
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drivers/acpi/acpica/psutils.c
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drivers/acpi/acpica/utdebug.c
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drivers/acpi/acpica/utdecode.c
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drivers/acpi/acpica/uterror.c
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drivers/acpi/acpica/utinit.c
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drivers/acpi/acpica/utmath.c
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drivers/acpi/acpica/utmutex.c
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drivers/acpi/acpica/utnonansi.c
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drivers/acpi/acpica/utosi.c
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drivers/acpi/acpica/utstrsuppt.c
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drivers/acpi/acpica/uttrack.c
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drivers/acpi/acpica/utxferror.c
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drivers/acpi/apei/erst.c
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drivers/acpi/apei/ghes.c
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drivers/acpi/battery.c
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drivers/acpi/button.c
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drivers/acpi/cppc_acpi.c
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drivers/acpi/device_pm.c
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drivers/acpi/ec.c
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drivers/acpi/ec_sys.c
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drivers/acpi/evged.c
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drivers/acpi/internal.h
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drivers/acpi/nfit/core.c
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drivers/acpi/numa.c
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drivers/acpi/pci_link.c
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drivers/acpi/pmic/intel_pmic_crc.c
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drivers/acpi/processor_idle.c
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drivers/acpi/sleep.c
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drivers/acpi/sysfs.c
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drivers/acpi/utils.c
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drivers/android/binder.c
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drivers/ata/ahci_mtk.c
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drivers/ata/ahci_qoriq.c
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drivers/ata/libata-core.c
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drivers/ata/pata_pdc2027x.c
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drivers/base/Kconfig
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drivers/base/cacheinfo.c
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drivers/base/cpu.c
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drivers/base/power/domain.c
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drivers/base/power/main.c
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drivers/base/power/power.h
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drivers/base/power/runtime.c
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drivers/base/power/sysfs.c
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drivers/base/power/wakeirq.c
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drivers/base/power/wakeup.c
浏览文件 @ 7bf14c28
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drivers/base/regmap/Kconfig
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drivers/base/regmap/Makefile
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drivers/base/regmap/internal.h
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drivers/base/regmap/regcache-flat.c
浏览文件 @ 7bf14c28
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drivers/base/regmap/regmap-sdw.c 0 → 100644
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drivers/base/regmap/regmap.c
浏览文件 @ 7bf14c28
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drivers/bcma/Kconfig
浏览文件 @ 7bf14c28
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drivers/block/DAC960.c
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drivers/block/Kconfig
浏览文件 @ 7bf14c28
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drivers/block/aoe/aoe.h
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drivers/block/aoe/aoecmd.c
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drivers/block/drbd/drbd_bitmap.c
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drivers/block/loop.c
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drivers/block/null_blk.c
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drivers/block/pktcdvd.c
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drivers/block/rbd.c
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drivers/block/smart1,2.h 已删除 100644 → 0
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drivers/block/zram/zram_drv.c
浏览文件 @ 7bf14c28
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drivers/bus/Kconfig
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drivers/bus/sunxi-rsb.c
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drivers/char/ipmi/ipmi_si_intf.c
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drivers/char/ipmi/ipmi_si_parisc.c
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drivers/char/ipmi/ipmi_si_pci.c
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drivers/clk/clk.c
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drivers/clk/sunxi/clk-sun9i-mmc.c
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drivers/clocksource/Kconfig
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drivers/clocksource/Makefile
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drivers/clocksource/owl-timer.c
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drivers/clocksource/tcb_clksrc.c
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drivers/clocksource/timer-of.c
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drivers/clocksource/timer-of.h
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drivers/clocksource/timer-sprd.c 0 → 100644
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drivers/clocksource/timer-stm32.c
浏览文件 @ 7bf14c28
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drivers/cpufreq/Kconfig.arm
浏览文件 @ 7bf14c28
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drivers/cpufreq/Makefile
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drivers/cpufreq/arm_big_little.c
浏览文件 @ 7bf14c28
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drivers/cpufreq/armada-37xx-cpufreq.c 0 → 100644
浏览文件 @ 7bf14c28
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drivers/cpufreq/cpufreq-dt.c
浏览文件 @ 7bf14c28
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drivers/cpufreq/cpufreq.c
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drivers/cpufreq/cpufreq_governor.c
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drivers/cpufreq/cpufreq_stats.c
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drivers/cpufreq/imx6q-cpufreq.c
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drivers/cpufreq/intel_pstate.c
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drivers/cpufreq/longhaul.c
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drivers/cpufreq/mediatek-cpufreq.c
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drivers/cpufreq/mvebu-cpufreq.c
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drivers/cpufreq/powernv-cpufreq.c
浏览文件 @ 7bf14c28
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drivers/cpufreq/qoriq-cpufreq.c
浏览文件 @ 7bf14c28
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drivers/cpufreq/scpi-cpufreq.c
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drivers/cpufreq/ti-cpufreq.c
浏览文件 @ 7bf14c28
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drivers/cpuidle/governor.c
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drivers/crypto/chelsio/Kconfig
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drivers/crypto/n2_core.c
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drivers/devfreq/devfreq.c
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drivers/dma/at_hdmac.c
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drivers/dma/dma-jz4740.c
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drivers/dma/dmatest.c
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drivers/dma/fsl-edma.c
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drivers/dma/ioat/dma.c
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drivers/dma/ioat/init.c
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drivers/dma/sh/rcar-dmac.c
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drivers/edac/Kconfig
浏览文件 @ 7bf14c28
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drivers/edac/Makefile
浏览文件 @ 7bf14c28
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drivers/edac/mv64x60_edac.c
浏览文件 @ 7bf14c28
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drivers/edac/octeon_edac-lmc.c
浏览文件 @ 7bf14c28
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drivers/edac/ti_edac.c 0 → 100644
浏览文件 @ 7bf14c28
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drivers/extcon/extcon-axp288.c
浏览文件 @ 7bf14c28
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drivers/firmware/efi/Kconfig
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drivers/firmware/efi/Makefile
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drivers/firmware/efi/cper-arm.c 0 → 100644
浏览文件 @ 7bf14c28
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drivers/firmware/efi/cper.c
浏览文件 @ 7bf14c28
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drivers/firmware/efi/efi.c
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drivers/firmware/psci_checker.c
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drivers/gpio/gpio-bcm-kona.c
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drivers/gpio/gpio-brcmstb.c
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drivers/gpio/gpio-merrifield.c
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drivers/gpio/gpio-mmio.c
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drivers/gpio/gpio-reg.c
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drivers/gpio/gpio-tegra.c
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drivers/gpio/gpio-xgene-sb.c
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drivers/gpio/gpiolib-acpi.c
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drivers/gpio/gpiolib-devprop.c
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drivers/gpio/gpiolib-of.c
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drivers/gpio/gpiolib.c
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drivers/gpio/gpiolib.h
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drivers/gpu/drm/drm_connector.c
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drivers/gpu/drm/drm_crtc_internal.h
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drivers/gpu/drm/drm_edid.c
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drivers/gpu/drm/drm_lease.c
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drivers/gpu/drm/drm_mm.c
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drivers/gpu/drm/drm_mode_config.c
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drivers/gpu/drm/drm_plane.c
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drivers/gpu/drm/drm_syncobj.c
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drivers/gpu/drm/i915/gvt/display.c
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drivers/gpu/drm/i915/gvt/gtt.c
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drivers/gpu/drm/i915/i915_drv.h
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drivers/gpu/drm/i915/i915_gem.c
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drivers/gpu/drm/i915/i915_reg.h
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drivers/gpu/drm/i915/intel_cdclk.c
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drivers/gpu/drm/i915/intel_ddi.c
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drivers/gpu/drm/i915/intel_drv.h
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drivers/gpu/drm/i915/intel_lrc.c
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drivers/gpu/drm/i915/intel_psr.c
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drivers/gpu/drm/i915/intel_sprite.c
浏览文件 @ 7bf14c28
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drivers/gpu/drm/nouveau/nvkm/subdev/mmu/mcp77.c 0 → 100644
浏览文件 @ 7bf14c28
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drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmmcp77.c 0 → 100644
浏览文件 @ 7bf14c28
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drivers/gpu/drm/sun4i/sun4i_tcon.c
浏览文件 @ 7bf14c28
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drivers/gpu/drm/tegra/sor.c
浏览文件 @ 7bf14c28
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drivers/gpu/drm/vc4/vc4_gem.c
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drivers/gpu/drm/vc4/vc4_irq.c
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drivers/gpu/drm/vc4/vc4_v3d.c
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drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
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drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
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drivers/hid/hid-core.c
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drivers/hid/hid-cp2112.c
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drivers/hid/hid-holtekff.c
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drivers/hv/vmbus_drv.c
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drivers/hwmon/Kconfig
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drivers/hwmon/Makefile
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drivers/hwmon/aspeed-pwm-tacho.c
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drivers/hwmon/coretemp.c
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drivers/hwmon/dell-smm-hwmon.c
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drivers/hwmon/hih6130.c
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drivers/hwmon/hwmon.c
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drivers/hwmon/iio_hwmon.c
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drivers/hwmon/ina2xx.c
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drivers/hwmon/k10temp.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/lm75.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/pmbus/Kconfig
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/pmbus/ibm-cffps.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/pmbus/ir35221.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/pmbus/lm25066.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/pmbus/max31785.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/pmbus/pmbus.h
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/pmbus/pmbus_core.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/sht15.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/sht21.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/sht3x.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwmon/w83773g.c 0 → 100644
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/hwtracing/stm/ftrace.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/i2c/busses/i2c-cht-wc.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/i2c/busses/i2c-piix4.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/i2c/busses/i2c-stm32.h
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/i2c/busses/i2c-stm32f4.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/i2c/busses/i2c-stm32f7.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/i2c/i2c-core-base.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/i2c/i2c-core-smbus.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/adc/Kconfig
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/adc/Makefile
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/adc/sd_adc_modulator.c 0 → 100644
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/adc/stm32-dfsdm-adc.c 0 → 100644
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/adc/stm32-dfsdm-core.c 0 → 100644
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/adc/stm32-dfsdm.h 0 → 100644
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/buffer/Kconfig
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/buffer/Makefile
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/buffer/industrialio-hw-consumer.c 0 → 100644
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/iio/inkern.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/Kconfig
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/core/cma.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/core/core_priv.h
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/core/device.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/core/iwcm.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/core/nldev.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/core/security.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/core/verbs.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/cxgb4/cq.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/cxgb4/qp.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/cxgb4/t4.h
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/hfi1/hfi.h
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/hfi1/pcie.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/hfi1/rc.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/hfi1/ruc.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/hfi1/sdma.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/hfi1/uc.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/hfi1/ud.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/mlx4/mr.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/mlx4/qp.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/mlx5/cmd.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/mlx5/cmd.h
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/mlx5/main.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/mlx5/mr.c
浏览文件 @ 7bf14c28
此差异已折叠。
drivers/infiniband/hw/mlx5/qp.c
浏览文件 @ 7bf14c28
此差异已折叠。
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