Commit graph

753663 commits

Author SHA1 Message Date
Vitaly Kuznetsov
5a48580322 x86/hyper-v: move hyperv.h out of uapi
hyperv.h is not part of uapi, there are no (known) users outside of kernel.
We are making changes to this file to match current Hyper-V Hypervisor
Top-Level Functional Specification (TLFS, see:
https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs)
and we don't want to maintain backwards compatibility.

Move the file renaming to hyperv-tlfs.h to avoid confusing it with
mshyperv.h. In future, all definitions from TLFS should go to it and
all kernel objects should go to mshyperv.h or include/linux/hyperv.h.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Andrew Jones
21e94acaaa KVM: trivial documentation cleanups
Add missing entries to the index and ensure the entries are in
alphabetical order. Also amd-memory-encryption.rst is an .rst
not a .txt.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Wanpeng Li
34226b6b70 KVM: X86: Fix setup the virt_spin_lock_key before static key get initialized
static_key_disable_cpuslocked(): static key 'virt_spin_lock_key+0x0/0x20' used before call to jump_label_init()
 WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:161 static_key_disable_cpuslocked+0x61/0x80
 RIP: 0010:static_key_disable_cpuslocked+0x61/0x80
 Call Trace:
  static_key_disable+0x16/0x20
  start_kernel+0x192/0x4b3
  secondary_startup_64+0xa5/0xb0

Qspinlock will be choosed when dedicated pCPUs are available, however, the
static virt_spin_lock_key is set in kvm_spinlock_init() before jump_label_init()
has been called, which will result in a WARN(). This patch fixes it by delaying
the virt_spin_lock_key setup to .smp_prepare_cpus().

Reported-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Fixes: b2798ba0b8 ("KVM: X86: Choose qspinlock when dedicated physical CPUs are available")
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Cole Robinson
1f97e01a38 tools/kvm_stat: Remove unused function
Unused since added in 18e8f4100

Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-and-tested-by: Stefan Raspl <stefan.raspl@linux.vnet.ibm.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Cole Robinson
0866c31bf3 tools/kvm_stat: Don't use deprecated file()
$ python3 tools/kvm/kvm_stat/kvm_stat
Traceback (most recent call last):
  File "tools/kvm/kvm_stat/kvm_stat", line 1668, in <module>
    main()
  File "tools/kvm/kvm_stat/kvm_stat", line 1639, in main
    assign_globals()
  File "tools/kvm/kvm_stat/kvm_stat", line 1618, in assign_globals
    for line in file('/proc/mounts'):
NameError: name 'file' is not defined

open() is the python3 way, and works on python2.6+

Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-and-tested-by: Stefan Raspl <stefan.raspl@linux.vnet.ibm.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Cole Robinson
6ade1ae84c tools/kvm_stat: Fix python3 syntax
$ python3 tools/kvm/kvm_stat/kvm_stat
  File "tools/kvm/kvm_stat/kvm_stat", line 1137
    def sortkey((_k, v)):
                ^
SyntaxError: invalid syntax

Fix it in a way that's compatible with python2 and python3

Signed-off-by: Cole Robinson <crobinso@redhat.com>
Tested-by: Stefan Raspl <stefan.raspl@linux.vnet.ibm.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Babu Moger
8566ac8b8e KVM: SVM: Implement pause loop exit logic in SVM
Bring the PLE(pause loop exit) logic to AMD svm driver.

While testing, we found this helping in situations where numerous
pauses are generated. Without these patches we could see continuos
VMEXITS due to pause interceptions. Tested it on AMD EPYC server with
boot parameter idle=poll on a VM with 32 vcpus to simulate extensive
pause behaviour. Here are VMEXITS in 10 seconds interval.

Pauses                  810199                  504
Total                   882184                  325415

Signed-off-by: Babu Moger <babu.moger@amd.com>
[Prevented the window from dropping below the initial value. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Babu Moger
1d8fb44a72 KVM: SVM: Add pause filter threshold
This patch adds the support for pause filtering threshold. This feature
support is indicated by CPUID Fn8000_000A_EDX. See AMD APM Vol 2 Section
15.14.4 Pause Intercept Filtering for more details.

In this mode, a 16-bit pause filter threshold field is added in VMCB.
The threshold value is a cycle count that is used to reset the pause
counter.  As with simple pause filtering, VMRUN loads the pause count
value from VMCB into an internal counter. Then, on each pause instruction
the hardware checks the elapsed number of cycles since the most recent
pause instruction against the pause Filter Threshold. If the elapsed cycle
count is greater than the pause filter threshold, then the internal pause
count is reloaded from VMCB and execution continues. If the elapsed cycle
count is less than the pause filter threshold, then the internal pause
count is decremented. If the count value is less than zero and pause
intercept is enabled, a #VMEXIT is triggered. If advanced pause filtering
is supported and pause filter threshold field is set to zero, the filter
will operate in the simpler, count only mode.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Babu Moger
c8e88717cf KVM: VMX: Bring the common code to header file
This patch brings some of the code from vmx to x86.h header file. Now, we
can share this code between vmx and svm. Modified couple functions to make
it common.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Babu Moger
18abdc3425 KVM: VMX: Remove ple_window_actual_max
Get rid of ple_window_actual_max, because its benefits are really
minuscule and the logic is complicated.

The overflows(and underflow) are controlled in __ple_window_grow
and _ple_window_shrink respectively.

Suggested-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Babu Moger <babu.moger@amd.com>
[Fixed potential wraparound and change the max to UINT_MAX. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Babu Moger
7fbc85a5fb KVM: VMX: Fix the module parameters for vmx
The vmx module parameters are supposed to be unsigned variants.

Also fixed the checkpatch errors like the one below.

WARNING: Symbolic permissions 'S_IRUGO' are not preferred. Consider using octal permissions '0444'.
+module_param(ple_gap, uint, S_IRUGO);

Signed-off-by: Babu Moger <babu.moger@amd.com>
[Expanded uint to unsigned int in code. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-28 22:47:06 +02:00
Luca Scalabrino
8aeaf4a0d2 ARM: 8751/1: Add support for Cortex-R8 processor
Cortex-R8 has identical initialisation requirements to Cortex-R7, so
hook it up in proc-v7.S in the same way.

Signed-off-by: Luca Scalabrino <luca.scalabrino@arm.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-03-28 21:30:59 +01:00
Jinbum Park
ee333554fe ARM: 8749/1: Kconfig: Add ARCH_HAS_FORTIFY_SOURCE
CONFIG_FORTIFY_SOURCE detects various overflows at compile-time.
(6974f0c455 ("include/linux/string.h:
add the option of fortified string.h functions)

ARCH_HAS_FORTIFY_SOURCE means that the architecture can be built and
run with CONFIG_FORTIFY_SOURCE.

Since ARM can be built and run with that flag like other architectures,
select ARCH_HAS_FORTIFY_SOURCE as default.

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-03-28 21:30:58 +01:00
Eric Biggers
53fedcc09c f2fs: reserve bits for fs-verity
Reserve an F2FS feature flag and inode flag for fs-verity.  This is an
in-development feature that is planned be discussed at LSF/MM 2018 [1].
It will provide file-based integrity and authenticity for read-only
files.  Most code will be in a filesystem-independent module, with
smaller changes needed to individual filesystems that opt-in to
supporting the feature.  An early prototype supporting F2FS is available
[2].  Reserving the F2FS on-disk bits for fs-verity will prevent users
of the prototype from conflicting with other new F2FS features.

Note that we're reserving the inode flag in f2fs_inode.i_advise, which
isn't really appropriate since it's not a hint or advice.  But
->i_advise is already being used to hold the 'encrypt' flag; and F2FS's
->i_flags uses the generic FS_* values, so it seems ->i_flags can't be
used for an F2FS-specific flag without additional work to remove the
assumption that ->i_flags uses the generic flags namespace.

[1] https://marc.info/?l=linux-fsdevel&m=151690752225644
[2] https://git.kernel.org/pub/scm/linux/kernel/git/mhalcrow/linux.git/log/?h=fs-verity-dev

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-03-28 12:56:49 -07:00
Shahar S Matityahu
378c893134 iwlwifi: wrt: add fw force restart via triggers
We can set triggers that cause a debug data collection when something
of interest happens (e.g. when too many probes are lost conscutively).
Normally, this triggers don't cause the FW to be restarted, but in
some cases that may be desired, so we recover from the problem.  To
support this, add a flag that indicates that the FW should be
restarted when the trigger fires.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:43:40 +03:00
Sara Sharon
9b137866f9 iwlwifi: mvm: save low latency causes in an enum
Currently we have a boolean variable for each cause.

This costs space, and requires to check each separately
when determining low latency.

Since we have another cause incoming, convert it to an enum.

While at it, move the retrieval of the prev value and the
assignment of the new value to be inside iwl_mvm_update_low_latency
and save the need for each caller to do it separately.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:43:40 +03:00
Emmanuel Grumbach
8f27036a0e iwlwifi: bump the max API version for 9000 and 22000 devices
We are now ready to load 38.ucode

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:43:39 +03:00
Haim Dreyfuss
976ea7b2c6 iwlwifi: api: Add geographic profile information to MCC_UPDATE_CMD
Some geographic profiles require specific handling.  For example ETSI
profile requires special channel access handling.  Add geographic
profile information to MCC_UPDATE response to allow it.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:43:38 +03:00
Luca Coelho
9e5053ad9d iwlwifi: add a bunch of new 9000 PCI IDs
A lot of new PCI IDs were added for the 9000 series.  Add them to the
list of supported PCI IDs.

Cc: stable@vger.kernel.org # 4.13+
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:43:38 +03:00
Ayala Beker
66fa2424df iwlwifi: fw api: support the new scan request FW API version
Remove fragmented_dwell_time and add num_of_fragments to support
the new API version.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:43:37 +03:00
Ilan Peer
d270e7b8fa iwlwifi: mvm: Allow iwl_mvm_mac_mgd_prepare_tx() when associated
The FW does not allocate quota air time for the binding of a station
MAC before iwlmvm indicates that it is associated. Currently iwlmvm
indicates that the MAC is associated only after hearing a beacon from
the AP. In case a deauthentication frame is sent before the MAC is
associated, the frame might not be sent as the corresponding binding
is not scheduled.

To handle such cases, set IEEE80211_HW_DEAUTH_NEED_MGD_TX_PREP in the
HW flags, requesting mac80211 to call the mgd_prepare_tx() callback
before transmitting a deauthentication frame if associated but no
beacon was heard from the AP.

In addition, do not warn in iwl_mvm_mac_mgd_prepare_tx() when already
associated as now the callback can be called also when associated.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:43:37 +03:00
Zamir, Roee
8f691af967 iwlwifi: mvm: add support for oce
Add support for Optimized Connectivity Experience (OCE).  Get
capabilities from the fw, expose them with nl80211, and enable them in
UMAC scan if the relevant nl80211 flags are set by the userspace.

Signed-off-by: Roee Zamir <roee.zamir@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:36:00 +03:00
Zamir, Roee
c1a7515393 iwlwifi: mvm: add adaptive dwell support
Update the scan command API with support for adaptive dwell.  Adaptive
dwell is a type of scan that dynamically changes the time it remains
on each channel listening for beacons or probe responses.

Signed-off-by: Roee Zamir <roee.zamir@intel.com>
Signed-off-by: Beni Lev <beni.lev@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-03-28 22:34:51 +03:00
Nikita V. Shirokov
6f5c39fa5c bpf: Add sock_ops R/W access to ipv4 tos
Sample usage for tos ...

  bpf_getsockopt(skops, SOL_IP, IP_TOS, &v, sizeof(v))

... where skops is a pointer to the ctx (struct bpf_sock_ops).

Signed-off-by: Nikita V. Shirokov <tehnerd@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-03-28 21:05:35 +02:00
Yazen Ghannam
e2efacb6a5 Revert "x86/mce/AMD: Collect error info even if valid bits are not set"
This reverts commit 4b1e84276a.

Software uses the valid bits to decide if the values can be used for
further processing or other actions. So setting the valid bits will have
software act on values that it shouldn't be acting on.

The recommendation to save all the register values does not mean that
the values are always valid.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: tony.luck@intel.com
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: bp@suse.de
Cc: linux-edac@vger.kernel.org
Link: https://lkml.kernel.org/r/20180326191526.64314-1-Yazen.Ghannam@amd.com
2018-03-28 20:34:59 +02:00
Stephen Rothwell
8ecd2953d0 ipc/shm: fix up for struct file no longer being available in shm.h
Stephen Rothewell <sfr@canb.auug.org.au> wrote:

> After merging the userns tree, today's linux-next build (powerpc
> ppc64_defconfig) produced this warning:
>
> In file included from include/linux/sched.h:16:0,
>                  from arch/powerpc/lib/xor_vmx_glue.c:14:
> include/linux/shm.h:17:35: error: 'struct file' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>  bool is_file_shm_hugepages(struct file *file);
>                                    ^~~~
>
> and many, many more (most warnings, but some errors - arch/powerpc is
> mostly built with -Werror)

I dug through this and I discovered that the error was caused by the
removal of struct shmid_kernel from shm.h when building on powerpc.
Except for observing the existence of "struct file *shm_file" in
struct shmid_kernel I have no clue why the structure move would cause
such a failure.  I suspect shm.h always needed the forward declaration
and someting had been confusing gcc into not issuing the warning. --EWB

Fixes: a2e102cd3c ("shm: Move struct shmid_kernel into ipc/shm.c")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2018-03-28 13:29:57 -05:00
mike.travis@hpe.com
bd47a85acd x86/platform/UV: Fix critical UV MMR address error
A critical error was found testing the fixed UV4 HUB in that an MMR address
was found to be incorrect.  This causes the virtual address space for
accessing the MMIOH1 region to be allocated with the incorrect size.

Fixes: 673aa20c55 ("x86/platform/UV: Update uv_mmrs.h to prepare for UV4A fixes")
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Russ Anderson <russ.anderson@hpe.com>
Cc: Andrew Banman <andrew.banman@hpe.com>
Link: https://lkml.kernel.org/r/20180328174011.041801248@stormcage.americas.sgi.com
2018-03-28 20:19:45 +02:00
Dan Williams
466d1493ea acpi, nfit: rework NVDIMM leaf method detection
Some BIOSen do not handle 0-byte transfer lengths for the _LSR and _LSW
(label storage read/write) methods. This causes Linux to fallback to the
deprecated _DSM path, or otherwise disable label support.

Introduce acpi_nvdimm_has_method() to detect whether a method is
available rather than calling the method, require _LSI and _LSR to be
paired, and require read support before enabling write support.

Cc: <stable@vger.kernel.org>
Fixes: 4b27db7e26 ("acpi, nfit: add support for the _LS...")
Suggested-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-03-28 10:44:50 -07:00
Arnd Bergmann
5717cb89ed i.MX device tree updates for 4.17, round 2:
- Add missing property '#sound-dai-cells' for sgtl5000 codec node
    in imx6ul-isiot board to fix warning seen with DTC 1.4.6.
  - Use stdout-path instead of linux,stdout-path to fix DTC warning
    reported by DTC 1.4.6.
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Merge tag 'imx-dt-4.17-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt

Pull "i.MX device tree updates for 4.17, round 2" Shawn Guo:

 - Add missing property '#sound-dai-cells' for sgtl5000 codec node
   in imx6ul-isiot board to fix warning seen with DTC 1.4.6.
 - Use stdout-path instead of linux,stdout-path to fix DTC warning
   reported by DTC 1.4.6.

* tag 'imx-dt-4.17-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx6ul-isiot: Pass the required '#sound-dai-cells'
  ARM: dts: imx6-phytec: Use the standard 'stdout-path' property
2018-03-28 18:09:29 +02:00
Alexander Shishkin
ebc57e399b intel_th: Add ACPI glue layer
The Trace Hub devices now can be enumerated as ACPI devices, which
translates into "Host Debugger mode". There are two IDs: one for
PCH Trace Hub, and one for the uncore Trace Hub. These are expected
to stay the same across all platforms.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
2018-03-28 18:47:23 +03:00
Alexander Shishkin
282ffec565 intel_th: Allow forcing host mode through drvdata
Some devices can only operate in host mode, so we need means of
communicating this to the core driver on per-device basis. This
adds a flag to drvdata to signal host-only capability to the core.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
2018-03-28 18:47:21 +03:00
Alexander Shishkin
661b0df848 intel_th: Pick up irq number from resources
Platform devices pass their IRQs around as resources, so as a convenience
for the glue layer code, allow them pass the IRQ to the core driver in
the resources array.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
2018-03-28 18:47:21 +03:00
Alexander Shishkin
c2d2c7de97 intel_th: Don't touch switch routing in host mode
When the Trace Hub is operating in Host Debugger mode, it is up to the
debugger to configure master routing even for the software sources. Do
not do this in the driver in this case.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
2018-03-28 18:47:20 +03:00
Alexander Shishkin
9ad5770871 intel_th: Use correct method of finding hub
Since commit 8edc514b01 ("intel_th: Make SOURCE devices children of the
root device") the hub is not the parent of SOURCE devices any more, so the
new helper function should be used for that instead of always using the
parent. The intel_th_set_output() path, however, still uses the old
logic, leading to the hub driver structure being aliased with something
else, like struct pci_driver or struct acpi_driver, and an incorrect call
to an address inferred from that, potentially resulting in a crash.

Fixes: 8edc514b01 ("intel_th: Make SOURCE devices children of the root device")
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
2018-03-28 18:47:19 +03:00
Alexander Shishkin
50352fa730 intel_th: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate
This adds SPDX GPL-2.0 header to the Trace Hub driver and removes the
GPLv2 boilerplate text.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
2018-03-28 18:47:19 +03:00
Alexander Shishkin
4f0c7c6a12 stm class: Make dummy's master/channel ranges configurable
To allow for more flexible testing of the stm class, make it possible
to specify the ranges of masters and channels that the dummy_stm devices
cover. This is done via module parameters.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
2018-03-28 18:47:18 +03:00
Alexander Shishkin
9ea393d8d8 stm class: Add SPDX GPL-2.0 header to replace GPLv2 boilerplate
This adds SPDX GPL-2.0 header to to stm core files and removes the
GPLv2 boilerplate text.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
2018-03-28 18:47:17 +03:00
Linus Torvalds
f67b15037a perf/hwbp: Simplify the perf-hwbp code, fix documentation
Annoyingly, modify_user_hw_breakpoint() unnecessarily complicates the
modification of a breakpoint - simplify it and remove the pointless
local variables.

Also update the stale Docbook while at it.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-03-28 17:41:50 +02:00
Christoph Hellwig
e89f5b3701 dma-mapping: Don't clear GFP_ZERO in dma_alloc_attrs
Revert the clearing of __GFP_ZERO in dma_alloc_attrs and move it to
dma_direct_alloc for now.  While most common architectures always zero dma
cohereny allocations (and x86 did so since day one) this is not documented
and at least arc and s390 do not zero without the explicit __GFP_ZERO
argument.

Fixes: 57bf5a8963 ("dma-mapping: clear harmful GFP_* flags in common code")
Reported-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
Reported-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
Cc: iommu@lists.linux-foundation.org
Link: https://lkml.kernel.org/r/20180328133535.17302-2-hch@lst.de
2018-03-28 17:34:23 +02:00
Arnd Bergmann
3ac3a2f9b2 UniPhier ARM SoC DT updates for v4.17 (2nd)
- add syscon property to sound nodes
 - add more ethernet pin groups
 - add ethernet support for PXs3 SoC
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Merge tag 'uniphier-dt-v4.17-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier into next/dt

Pull "UniPhier ARM SoC DT updates for v4.17 (2nd)" from Masahiro Yamada:

- add syscon property to sound nodes
- add more ethernet pin groups
- add ethernet support for PXs3 SoC

* tag 'uniphier-dt-v4.17-2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier:
  arm64: dts: uniphier: add ethernet node for PXs3
  ARM: dts: uniphier: add pinctrl groups of ethernet for second instance
  ARM: dts: uniphier: add syscon property for UniPhier sound system
  arm64: dts: uniphier: add syscon property for UniPhier sound system
2018-03-28 17:17:49 +02:00
Arnd Bergmann
fd553821a9 The rk3399 gained support its Cadence displayport controller and some
minor additions like pins for 2ch i2s0 and the cif test clocks as well
 as a default rate for ACLK_VIO that should be 400MHz according to the TRM.
 
 The rk3328 got uart dmas fixed - a non-critical fix, as nobody was using
 that so far.
 
 New boards are the rk3328-based roc-rk3328-cc, the rk3368-based Lion-SOM
 + baseborad from Theobroma Systems and a standalone variant of the Sapphire
 board, as a lot of people where using that without the Exkavator baseboard.
 
 Sapphire also saw a lot of small cleanups of things that are not part
 of the actual Sapphire board, but the baseboard instead. The rk3399-puma
 board got i2s and tsadc support and Gru got its DP node enabled.
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Merge tag 'v4.17-rockchip-dts64-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt

Pull "Rockchip dts64 changes for 4.17" from Heiko Stübner:

The rk3399 gained support its Cadence displayport controller and some
minor additions like pins for 2ch i2s0 and the cif test clocks as well
as a default rate for ACLK_VIO that should be 400MHz according to the TRM.

The rk3328 got uart dmas fixed - a non-critical fix, as nobody was using
that so far.

New boards are the rk3328-based roc-rk3328-cc, the rk3368-based Lion-SOM
+ baseborad from Theobroma Systems and a standalone variant of the Sapphire
board, as a lot of people where using that without the Exkavator baseboard.

Sapphire also saw a lot of small cleanups of things that are not part
of the actual Sapphire board, but the baseboard instead. The rk3399-puma
board got i2s and tsadc support and Gru got its DP node enabled.

* tag 'v4.17-rockchip-dts64-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: remove keep-power-in-suspend from sdhci of rk3399-sapphire
  arm64: dts: rockchip: assign clock rate for ACLK_VIO on rk3399
  arm64: dts: rockchip: add a standalone version of the rk3399 sapphire
  arm64: dts: rockchip: move rk3399-sapphire pwr_btn to daughterboard
  arm64: dts: rockchip: move rk3399-sapphire i2s2 to daughterboard
  arm64: dts: rockchip: move rk3399-sapphire sdio to excavator baseboard
  arm64: dts: rockchip: enable I2S codec on rk3399-puma-haikou
  arm64: dts: rockchip: move i2s0 node from baseboard to SoM on rk3399-puma
  arm64: dts: rockchip: vdd_log on rk3399-sapphire is not an i2c slave
  arm64: dts: rockchip: add Haikou baseboard with RK3368-uQ7 SoM
  arm64: dts: rockchip: add RK3368-uQ7 (Lion) SoM
  dt-bindings: add RK3368-uQ7 SoM and EVK base board
  arm64: dts: rockchip: Fix RK3328 UART DMAs
  arm64: dts: rockchip: enable DP for rk3399-gru
  arm64: dts: rockchip: add cdn-dp node for rk3399.
  arm64: dts: rockchip: add i2s0-2ch-bus pins on rk3399
  arm64: dts: rockchip: enable tsadc on rk3399-puma
  arm64: dts: rockchip: add roc-rk3328-cc board
  arm64: dts: rockchip: Add cif test clocks for rk3399
2018-03-28 17:17:00 +02:00
Arnd Bergmann
3eb8d21ac6 For general soc-specific changes the rk322x socs got their correct grf
compatible set. Other than that there are some board-specific changes
 like the Rock2 getting its otg port, recovery and power keys enabled.
 
 The vyasa board gained an enabled emmc node and the phyCORE boards
 got UHS speeds in their sd card and a fixed sd-card power supply.
 
 Finally the veyron boards dropped a nonstandard and unused property.
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Merge tag 'v4.17-rockchip-dts32-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt

Pull "Rockchip dts32 changes for 4.17" from Heiko Stübner:

For general soc-specific changes the rk322x socs got their correct grf
compatible set. Other than that there are some board-specific changes
like the Rock2 getting its otg port, recovery and power keys enabled.

The vyasa board gained an enabled emmc node and the phyCORE boards
got UHS speeds in their sd card and a fixed sd-card power supply.

Finally the veyron boards dropped a nonstandard and unused property.

* tag 'v4.17-rockchip-dts32-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: enable USB-OTG port on Radxa Rock2 Square
  ARM: dts: rockchip: add recovery button for Rock2 Square
  ARM: dts: rockchip: add power key for Rock2 Square
  ARM: dts: rockchip: Add eMMC node for rk3288-vyasa
  ARM: dts: rockchip: Support UHS mode for SD card on phyCORE-RK3288 RDK
  ARM: dts: rockchip: Fix supply node for card's power on phycore som
  ARM: dts: rockchip: add "rockchip,rk3228-grf" compatible for rk322x grf node
  ARM: dts: rockchip: drop veyron's nonstandard 'backlight-boot-off'
2018-03-28 17:15:43 +02:00
Arnd Bergmann
8498546056 Fix for the legacy pmu-regmap in the smp-code to have a real name
and therefore not create a dummy* entry in debugfs.
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Merge tag 'v4.17-rockchip-soc32-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/soc

Pull "Rockchip soc32 changes for 4.17" from Heiko Stübner:

Fix for the legacy pmu-regmap in the smp-code to have a real name
and therefore not create a dummy* entry in debugfs.

* tag 'v4.17-rockchip-soc32-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: rockchip: Set name of pmu regmap_config in smp code
2018-03-28 17:14:29 +02:00
Arnd Bergmann
7df3f0bb5f Rockchip soc drivers containing conversion of the power-domain driver
to use the clk-bulk APIs and two more socs to disable jtag-switching.
 On the plus-side the issue we see with that are _supposed_ to be fixed
 in hardware in upcoming socs, so maybe this can be the last of those.
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Merge tag 'v4.17-rockchip-drivers-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/drivers

Pull "Rockchip driver changes for 4.17" from Heiko Stübner:

Rockchip soc drivers containing conversion of the power-domain driver
to use the clk-bulk APIs and two more socs to disable jtag-switching.
On the plus-side the issue we see with that are _supposed_ to be fixed
in hardware in upcoming socs, so maybe this can be the last of those.

* tag 'v4.17-rockchip-drivers-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  soc: rockchip: power-domain: Add a sanity check on pd->num_clks
  soc: rockchip: power-domain: use clk_bulk APIs
  soc: rockchip: disable jtag switching for RK3128 SoCs
  soc: rockchip: disable jtag switching for RK3228/RK3229 SoCs
2018-03-28 17:08:34 +02:00
Arnd Bergmann
7f95de5e4a Reset controller changes for v4.17, part 2
This tag contains reset lookup support, similar to pwm lookups, for legacy
 non-DT platforms, a few new reset controls and a Kconfig fix for uniphier
 SoCs, as well as a new driver for the STM32MP1 peripheral reset controller.
 
 The reset lookups are merged from a separate, immutable branch, that may
 also be merged into the davinci tree.
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Merge tag 'reset-for-4.17-2' of git://git.pengutronix.de/git/pza/linux into next/drivers

Pull "Reset controller changes for v4.17, part 2" from Philipp Zabel:

This tag contains reset lookup support, similar to pwm lookups, for legacy
non-DT platforms, a few new reset controls and a Kconfig fix for uniphier
SoCs, as well as a new driver for the STM32MP1 peripheral reset controller.

The reset lookups are merged from a separate, immutable branch, that may
also be merged into the davinci tree.

* tag 'reset-for-4.17-2' of git://git.pengutronix.de/git/pza/linux:
  reset: uniphier: add ethernet reset control support for PXs3
  reset: stm32mp1: Enable stm32mp1 reset driver
  dt-bindings: reset: add STM32MP1 resets
  reset: uniphier: add Pro4/Pro5/PXs2 audio systems reset control
  reset: imx7: add 'depends on HAS_IOMEM' to fix unmet dependency
  reset: modify the way reset lookup works for board files
  reset: add support for non-DT systems
2018-03-28 17:02:22 +02:00
Wei Yongjun
ef1b204a70 drm/tegra: dc: Using NULL instead of plain integer
Fixes the following sparse warnings:

drivers/gpu/drm/tegra/dc.c:2181:69: warning:
  Using plain integer as NULL pointer

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-03-28 17:01:13 +02:00
Dan Haab
2726412061
MIPS: BCM47XX: Add Luxul XAP1500/XWR1750 WiFi LEDs
Some Luxul devices use PCIe connected GPIO LEDs that are not available
until the PCI subsytem and its drivers load. Using the same array for
these LEDs would block registering any LEDs until all GPIOs become
available. This may be undesired behavior as some LEDs should be
available as early as possible (e.g. system status LED). This patch will
allow registering available LEDs while deferring these PCIe GPIO
connected 'extra' LEDs until they become available.

Signed-off-by: Dan Haab <dan.haab@luxul.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/18952/
Signed-off-by: James Hogan <jhogan@kernel.org>
2018-03-28 15:59:36 +01:00
Bartlomiej Zolnierkiewicz
7c9b845e79 video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms
Exynos5, Exynos4 and S5PV210 platforms have been converted to
use Device Tree and Exynos DRM driver long time ago.  Remove
dead platform code for these platforms and update Kconfig
s3c-fb entry accordingly.

Acked-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-03-28 16:34:29 +02:00
Markus Elfring
46953e6aab video: au1100fb: Delete an unnecessary variable initialisation in au1100fb_drv_probe()
The local variable "fbdev" will be reassigned by a following statement.
Thus omit the explicit initialisation at the beginning.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-03-28 16:34:29 +02:00
Markus Elfring
db66f0252e video: au1100fb: Improve a size determination in au1100fb_drv_probe()
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-03-28 16:34:29 +02:00