openwrt/staging/blogic.git
7 years agodrm/nouveau/i2c: modify aux interface to return length actually transferred
Ben Skeggs [Tue, 28 Feb 2017 23:01:08 +0000 (09:01 +1000)]
drm/nouveau/i2c: modify aux interface to return length actually transferred

Apparently sinks are allows to respond with ACK even if they didn't
fully complete a transaction...  It seems like a missed opportunity
for DEFER to me, but what do I know :)

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/gp10x: enable secboot and GR
Alexandre Courbot [Thu, 16 Feb 2017 06:50:27 +0000 (15:50 +0900)]
drm/nouveau/gp10x: enable secboot and GR

All the bricks are in place for secure boot to be enabled. This in turn
makes GR usable so enable them all.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/gr/gp102: initial support
Ben Skeggs [Wed, 30 Nov 2016 05:48:00 +0000 (15:48 +1000)]
drm/nouveau/gr/gp102: initial support

Differences from GP100:
- 3 PPCs/GPC.
- Another random reg to calculate/write.
- Attrib CB setup a little different.
- PascalB
- PascalComputeB

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: support for gp10x msgqueue
Alexandre Courbot [Thu, 16 Feb 2017 06:46:25 +0000 (15:46 +0900)]
drm/nouveau/falcon: support for gp10x msgqueue

Add support for the msgqueue firmware used to process SEC2 commands
for gp10x chips.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: add gp102/gp104/gp106/gp107 support
Alexandre Courbot [Thu, 26 Jan 2017 06:18:25 +0000 (15:18 +0900)]
drm/nouveau/secboot: add gp102/gp104/gp106/gp107 support

These gp10x chips are supporting using (roughly) the same firmware.
Compared to previous secure chips, ACR runs on SEC2 and so does the
low-secure msgqueue.

ACR for these chips is based on r367.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: put HS code loading code into own file
Alexandre Courbot [Thu, 16 Feb 2017 09:57:03 +0000 (18:57 +0900)]
drm/nouveau/secboot: put HS code loading code into own file

We will also need to load HS blobs outside of acr_r352 (for instance, to
run the NVDEC VPR scrubber), so make this code reusable.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support for r375 ACR
Alexandre Courbot [Tue, 15 Nov 2016 07:30:52 +0000 (16:30 +0900)]
drm/nouveau/secboot: support for r375 ACR

r375 ACR uses a unified bootloader descriptor for the GR and PMU
firmwares.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support for r367 ACR
Alexandre Courbot [Tue, 15 Nov 2016 07:30:26 +0000 (16:30 +0900)]
drm/nouveau/secboot: support for r367 ACR

r367 uses a different hsflcn_desc layout and LS firmware signature
format, requiring a rewrite of some functions.

It also makes use of the shadow region, and uses SEC as the boot falcon.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support for r364 ACR
Alexandre Courbot [Tue, 15 Nov 2016 06:34:29 +0000 (15:34 +0900)]
drm/nouveau/secboot: support for r364 ACR

r364 is similar to r361, but uses a different hsflcn_desc structure to
introduce the shadow region address (even though it is not yet used by
this version).

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: workaround bug when starting SEC2 firmware
Alexandre Courbot [Thu, 16 Feb 2017 06:13:49 +0000 (15:13 +0900)]
drm/nouveau/secboot: workaround bug when starting SEC2 firmware

For some unknown reason the LS SEC2 firmware needs to be started twice
to operate. Detect and address that condition.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support standard NVIDIA HS binaries
Alexandre Courbot [Thu, 26 Jan 2017 07:12:10 +0000 (16:12 +0900)]
drm/nouveau/secboot: support standard NVIDIA HS binaries

I had the brilliant idea to "improve" the binary format by removing
a useless indirection in the HS binary files. In the end it just
makes things more complicated than they ought to be as NVIDIA-provided
files need to be adapted. Since the format used can be identified by the
header, support both.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support for unload blob bootloader
Alexandre Courbot [Thu, 26 Jan 2017 08:23:11 +0000 (17:23 +0900)]
drm/nouveau/secboot: support for unload blob bootloader

If the load and unload falcons are different, then a different
bootloader must also be used. Support this case.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: let callers interpret return value of blobs
Alexandre Courbot [Thu, 23 Feb 2017 04:05:27 +0000 (13:05 +0900)]
drm/nouveau/secboot: let callers interpret return value of blobs

Since the HS blobs are provided and signed by NVIDIA, we cannot expect
always-consistent behavior. In this case, on GP10x the unload blob may
return 0x1d even though things have run perfectly well. This behavior
has been confirmed by NVIDIA.

So let the callers of the run_blob() hook receive the blob return's
value (a positive integer) and decide what it means. This allows us to
workaround the 0x1d code instead of issuing an error.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support for different load and unload falcons
Alexandre Courbot [Thu, 26 Jan 2017 08:18:49 +0000 (17:18 +0900)]
drm/nouveau/secboot: support for different load and unload falcons

On some secure boot instances (e.g. gp10x) the load and unload blobs do
not run on the same falcon. Support this case by introducing a new
member to the ACR structure and making related functions take the falcon
to use as an argument instead of assuming the boot falcon is to be used.

The rule is that the load blob can be run on either the SEC or PMU
falcons, but the unload blob must be always run on PMU.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: share r361 BL structures and functions
Alexandre Courbot [Thu, 16 Feb 2017 11:13:59 +0000 (20:13 +0900)]
drm/nouveau/secboot: share r361 BL structures and functions

Share elements of r361 that will be reused in other ACRs.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: add support for SEC LS firmware
Alexandre Courbot [Thu, 26 Jan 2017 07:57:24 +0000 (16:57 +0900)]
drm/nouveau/secboot: add support for SEC LS firmware

Support running a message queue firmware on SEC.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support running ACR on SEC
Alexandre Courbot [Thu, 26 Jan 2017 07:56:45 +0000 (16:56 +0900)]
drm/nouveau/secboot: support running ACR on SEC

Add support for running the ACR binary on the SEC falcon.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: get start address of blob from ACR
Alexandre Courbot [Thu, 26 Jan 2017 07:04:14 +0000 (16:04 +0900)]
drm/nouveau/secboot: get start address of blob from ACR

The start address used for secure blobs is not unique to the ACR, but
rather blob-dependent. Remove the unique member stored in the ACR
structure and make the load function return the start address for the
current blob instead.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: add shadow blob argument
Alexandre Courbot [Tue, 15 Nov 2016 07:28:37 +0000 (16:28 +0900)]
drm/nouveau/secboot: add shadow blob argument

ACR firmware from r364 on need a shadow region for the ACR to copy the
WPR region into. Add a flag to indicate that a shadow region is required
and manage memory allocations accordingly.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon/msgqueue: add SEC2 support
Alexandre Courbot [Thu, 23 Feb 2017 09:14:30 +0000 (18:14 +0900)]
drm/nouveau/falcon/msgqueue: add SEC2 support

Add support for running a msgqueue on the SEC2 falcon.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: support for EMEM
Alexandre Courbot [Tue, 14 Feb 2017 06:56:10 +0000 (15:56 +0900)]
drm/nouveau/falcon: support for EMEM

On SEC, DMEM is unaccessible by the CPU when the falcon is running in LS
mode. This makes communication with the firmware using DMEM impossible.

For this purpose, a new kind of memory (EMEM) has been added. It works
similarly to DMEM, with the difference that its address space starts at
0x1000000. For this reason, it makes sense to treat it like a special
case of DMEM.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: fix base address of FBIF registers
Alexandre Courbot [Thu, 26 Jan 2017 07:49:43 +0000 (16:49 +0900)]
drm/nouveau/falcon: fix base address of FBIF registers

All falcons have their FBIF registers starting at offset 0x600, with the
exception of the PMU and NVENC engines.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: better detection of debug register
Alexandre Courbot [Wed, 22 Feb 2017 11:50:09 +0000 (20:50 +0900)]
drm/nouveau/falcon: better detection of debug register

Not all falcons have a debug register, and it is not always found at the
same offset.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/core: add SEC2 engine
Alexandre Courbot [Thu, 23 Feb 2017 09:41:41 +0000 (18:41 +0900)]
drm/nouveau/core: add SEC2 engine

SEC2 is the name given by NVIDIA to the SEC engine post-Fermi (reasons
unknown). Even though it shares the same address range as SEC, its usage
is quite different and this justifies a new engine. Add this engine and
make TOP use it all post-TOP devices should use this implementation and
not the older SEC.

Also quickly add the short gp102 implementation which will be used for
falcon booting purposes.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/nvdec: add gp102 support
Alexandre Courbot [Thu, 26 Jan 2017 06:16:32 +0000 (15:16 +0900)]
drm/nouveau/nvdec: add gp102 support

gp10x' secure boot requires a blob to be run on NVDEC. Expose the falcon
through a dummy device.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: delay construction of falcons to oneinit()
Alexandre Courbot [Wed, 22 Feb 2017 11:48:30 +0000 (20:48 +0900)]
drm/nouveau/falcon: delay construction of falcons to oneinit()

Reading registers at device construction time can be harmful, as there
is no guarantee the underlying engine will be up, or in its runtime
configuration. Defer register reading to the oneinit() hook and update
users accordingly.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: use NXTCTX register instead of NEW_INSTBLK
Alexandre Courbot [Thu, 26 Jan 2017 06:00:45 +0000 (15:00 +0900)]
drm/nouveau/falcon: use NXTCTX register instead of NEW_INSTBLK

Both registers allow to bind a new context, but NXTCTX will work on all
falcons, while legacy NEW_INSTBLK is reserved to PMU.

After setting NXTCTX we trigger a context switch by writing 0x090 and
0x0a4.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot/gm20b: enable PMU firmware
Alexandre Courbot [Wed, 26 Oct 2016 04:08:14 +0000 (13:08 +0900)]
drm/nouveau/secboot/gm20b: enable PMU firmware

Enable the PMU firmware in gm20b, managed by secure boot.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/pmu/gm20b: add msgqueue support
Alexandre Courbot [Fri, 10 Feb 2017 07:29:01 +0000 (16:29 +0900)]
drm/nouveau/pmu/gm20b: add msgqueue support

gm20b PMU firmware is driven by a msgqueue, so connect relevant PMU
hooks to their msgqueue counterparts.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: check that WPR region is properly set
Alexandre Courbot [Tue, 15 Nov 2016 07:26:09 +0000 (16:26 +0900)]
drm/nouveau/secboot: check that WPR region is properly set

The ACR firmware may return no error but fail nonetheless. Such cases
can be detected by verifying that the WPR region has been properly set
in FB. If this is not the case, this is an error, but the unload
firmware should still not be run.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support optional falcons
Alexandre Courbot [Fri, 18 Nov 2016 08:47:08 +0000 (17:47 +0900)]
drm/nouveau/secboot: support optional falcons

PMU support has been enabled for r352 ACR, but it must remain optional
if we want to preserve existing user-space that do not include it. Allow
ACR to be instanciated with a list of optional LS falcons, that will not
produce a fatal error if their firmware is not loaded. Also change the
secure boot bootstrap logic to be able to fall back to legacy behavior
if it turns out the boot falcon's LS firmware cannot be loaded.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support PMU LS firmware
Alexandre Courbot [Thu, 27 Oct 2016 05:25:02 +0000 (14:25 +0900)]
drm/nouveau/secboot: support PMU LS firmware

Add the PMU bootloader generator and PMU LS ops that will enable proper
PMU operation if the PMU falcon is designated as managed.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: base support for PMU falcon
Alexandre Courbot [Thu, 27 Oct 2016 05:24:34 +0000 (14:24 +0900)]
drm/nouveau/secboot: base support for PMU falcon

Adapt secboot's behavior if a PMU firmware is present, in particular
the way LS falcons are reset. Without PMU firmware, secboot needs to be
performed again from scratch so all LS falcons are reset. With PMU
firmware, we can ask the PMU's ACR unit to reset a specific falcon
through a PMU message.

As we must preserve the old behavior to avoid breaking user-space, add a
few conditionals to the way falcons are reset.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: support for loading LS PMU firmware
Alexandre Courbot [Thu, 27 Oct 2016 05:22:28 +0000 (14:22 +0900)]
drm/nouveau/secboot: support for loading LS PMU firmware

Allow secboot to load a LS PMU firmware. LS PMU is one instance of
firmwares based on the message queue mechanism, which is also used for
other firmwares like SEC, so name its source file accordingly.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/pmu: add msgqueue member
Alexandre Courbot [Thu, 19 Jan 2017 04:16:40 +0000 (13:16 +0900)]
drm/nouveau/pmu: add msgqueue member

NVIDIA-provided PMU firmware is controlled by a msgqueue. Add a member
to the PMU structure as well as the required cleanup code if this
feature is used.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: support for gm20b msgqueue
Alexandre Courbot [Thu, 16 Feb 2017 08:25:59 +0000 (17:25 +0900)]
drm/nouveau/falcon: support for gm20b msgqueue

Add support for the msgqueue firmware used to process PMU commands for
gm20b.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: add msgqueue interface
Alexandre Courbot [Thu, 19 Jan 2017 03:52:50 +0000 (12:52 +0900)]
drm/nouveau/falcon: add msgqueue interface

A message queue firmware implements a specific protocol allowing the
host to send "commands" to a falcon, and the falcon to reply using
"messages". This patch implements the common part of this protocol and
defines the interface that the host can use.

Due to the way the firmware is developped internally at NVIDIA (where
kernel driver and firmware evolve in lockstep), firmwares taken at
different points in time can have frustratingly subtle differences that
must be taken into account. This code is architectured to make
implementing such differences as easy as possible.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: add LS firmware post-run hooks
Alexandre Courbot [Wed, 26 Oct 2016 06:15:42 +0000 (15:15 +0900)]
drm/nouveau/secboot: add LS firmware post-run hooks

Add the ability for LS firmwares to declare a post-run hook that is
invoked right after the HS firmware is executed. This allows them to
e.g. write some initialization data into the falcon's DMEM.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: abstract fixup_hs_desc function
Alexandre Courbot [Tue, 1 Nov 2016 06:05:03 +0000 (15:05 +0900)]
drm/nouveau/secboot: abstract fixup_hs_desc function

As different firmare versions use different HS descriptor formats, we
need to abstract this part as well.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: make specialized ls_ucode_img struct private
Alexandre Courbot [Fri, 20 Jan 2017 02:59:23 +0000 (11:59 +0900)]
drm/nouveau/secboot: make specialized ls_ucode_img struct private

This structure does not need to be shared anymore.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: store ucode offset in base image structure
Alexandre Courbot [Tue, 15 Nov 2016 06:02:27 +0000 (15:02 +0900)]
drm/nouveau/secboot: store ucode offset in base image structure

This allows the bootloader descriptor generation code to not rely on
specialized ls_ucode_img structures, making it reusable in other
instances.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: fix usage of hsf_load_header
Alexandre Courbot [Tue, 15 Nov 2016 07:29:02 +0000 (16:29 +0900)]
drm/nouveau/secboot: fix usage of hsf_load_header

Offsets were not properly computed. This went unnoticed because we are
only using one app for now.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: prevent address trimming
Alexandre Courbot [Tue, 24 Jan 2017 10:29:39 +0000 (19:29 +0900)]
drm/nouveau/secboot: prevent address trimming

Using 32-bit integers would trim the WPR address if it is allocated above 4GB.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: fix WPR region alignment
Alexandre Courbot [Thu, 26 Jan 2017 05:55:56 +0000 (14:55 +0900)]
drm/nouveau/secboot: fix WPR region alignment

A WPR region smaller than 256K will result in secure boot failure.
Adjust the minimal size.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: fix WPR address to be 64-bit
Alexandre Courbot [Tue, 31 Jan 2017 09:16:08 +0000 (18:16 +0900)]
drm/nouveau/secboot: fix WPR address to be 64-bit

The WPR address parameter of the ls_write_wpr hook was defined as a u32,
which will very likely overflow on boards with more than 4GB VRAM.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: make sure requested falcons are supported
Alexandre Courbot [Mon, 23 Jan 2017 03:48:09 +0000 (12:48 +0900)]
drm/nouveau/secboot: make sure requested falcons are supported

Check at contruction time that we have support for all the LS firmwares
asked by the caller.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: remove unused hook
Alexandre Courbot [Fri, 16 Dec 2016 09:00:44 +0000 (18:00 +0900)]
drm/nouveau/secboot: remove unused hook

Remove a leftover that became obsolete with the falcon interface.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: fix IMEM port access
Alexandre Courbot [Tue, 14 Feb 2017 06:55:23 +0000 (15:55 +0900)]
drm/nouveau/falcon: fix IMEM port access

All IMEM registers are duplicated per port.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: fix port offset for DMEM register
Alexandre Courbot [Tue, 14 Feb 2017 06:52:54 +0000 (15:52 +0900)]
drm/nouveau/falcon: fix port offset for DMEM register

DMEM registers are replicated with a stride of 8 bytes.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: protect against concurrent DMEM accesses
Alexandre Courbot [Thu, 19 Jan 2017 03:11:15 +0000 (12:11 +0900)]
drm/nouveau/falcon: protect against concurrent DMEM accesses

The falcon library may be used concurrently, especially after the
introduction of the msgqueue interface. Make it safe to use it that way.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/falcon: add missing context binding memory target
Alexandre Courbot [Thu, 26 Jan 2017 05:59:56 +0000 (14:59 +0900)]
drm/nouveau/falcon: add missing context binding memory target

This is not used currently, but is added for the sake of completeness.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/pmu: make sure the reset hook exists before running it
Alexandre Courbot [Thu, 17 Nov 2016 07:37:29 +0000 (16:37 +0900)]
drm/nouveau/pmu: make sure the reset hook exists before running it

Some PMU implementations (in particular the ones managed by secure
boot) may not have a reset() hook. Make sure we don't crash in that
case.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/secboot: make nvkm_secboot_falcon_name visible
Alexandre Courbot [Thu, 15 Dec 2016 05:40:25 +0000 (14:40 +0900)]
drm/nouveau/secboot: make nvkm_secboot_falcon_name visible

Make nvkm_secboot_falcon_name publicly visible as other subdevs will
need to use it for debug messages.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agodrm/nouveau/priv: punt messages to debug level
Ben Skeggs [Tue, 21 Feb 2017 00:05:58 +0000 (10:05 +1000)]
drm/nouveau/priv: punt messages to debug level

Ideally we'd be able to keep these at a more obvious error level, as
they're a good indication of us doing something wrong.

However, NVIDIA's FECS/GPCCS firmware touches registers that trigger
priv ring faults, and we can't do anything to fix that ourselves due
to the need for them to be signed by NVIDIA.

This issue was reported a while back, but hasn't been fixed, so, for
now we will hide the messages to prevent spamming Optimus users with
messages whenever the NVIDIA GPU is powered off and on again.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
7 years agoMerge tag 'drm-misc-next-fixes-2017-02-27' of git://anongit.freedesktop.org/git/drm...
Dave Airlie [Tue, 28 Feb 2017 02:28:00 +0000 (12:28 +1000)]
Merge tag 'drm-misc-next-fixes-2017-02-27' of git://anongit.freedesktop.org/git/drm-misc into drm-next

Misc fixes for the 4.11 merge window.

- vmwgfx drm_control node compat patch
- rockchip&zte fix
- compat32 support for dma-buf ioctl (cc: stable ofc, since this is a
  massive fumble. oops)

* tag 'drm-misc-next-fixes-2017-02-27' of git://anongit.freedesktop.org/git/drm-misc:
  dma-buf: add support for compat ioctl
  drm/vmwgfx: Work around drm removal of control nodes
  drm/rockchip: cdn-dp: Fix error handling
  drm/rockchip: add extcon dependency for DP
  drm: zte: fix static checker warning on variable 'fmt'

7 years agoMerge tag 'trace-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Mon, 27 Feb 2017 21:36:19 +0000 (13:36 -0800)]
Merge tag 'trace-v4.11-2' of git://git./linux/kernel/git/rostedt/linux-trace

Pull another tracing update from Steven Rostedt:
 "Commit 79c6f448c8b79c ("tracing: Fix hwlat kthread migration") fixed a
  bug that was caused by a race condition in initializing the hwlat
  thread. When fixing this code, I realized that it should have been
  done differently. Instead of doing the rewrite and sending that to
  stable, I just sent the above commit to fix the bug that should be
  back ported.

  This commit is on top of the quick fix commit to rewrite the code the
  way it should have been written in the first place"

* tag 'trace-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Clean up the hwlat binding code

7 years agoMerge tag 'trace-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Mon, 27 Feb 2017 21:26:17 +0000 (13:26 -0800)]
Merge tag 'trace-v4.11' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "This release has no new tracing features, just clean ups, minor fixes
  and small optimizations"

* tag 'trace-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (25 commits)
  tracing: Remove outdated ring buffer comment
  tracing/probes: Fix a warning message to show correct maximum length
  tracing: Fix return value check in trace_benchmark_reg()
  tracing: Use modern function declaration
  jump_label: Reduce the size of struct static_key
  tracing/probe: Show subsystem name in messages
  tracing/hwlat: Update old comment about migration
  timers: Make flags output in the timer_start tracepoint useful
  tracing: Have traceprobe_probes_write() not access userspace unnecessarily
  tracing: Have COMM event filter key be treated as a string
  ftrace: Have set_graph_function handle multiple functions in one write
  ftrace: Do not hold references of ftrace_graph_{notrace_}hash out of graph_lock
  tracing: Reset parser->buffer to allow multiple "puts"
  ftrace: Have set_graph_functions handle write with RDWR
  ftrace: Reset fgd->hash in ftrace_graph_write()
  ftrace: Replace (void *)1 with a meaningful macro name FTRACE_GRAPH_EMPTY
  ftrace: Create a slight optimization on searching the ftrace_hash
  tracing: Add ftrace_hash_key() helper function
  ftrace: Convert graph filter to use hash tables
  ftrace: Expose ftrace_hash_empty and ftrace_lookup_ip
  ...

7 years agodma-buf: add support for compat ioctl
Marek Szyprowski [Tue, 21 Feb 2017 13:21:01 +0000 (14:21 +0100)]
dma-buf: add support for compat ioctl

Add compat ioctl support to dma-buf. This lets one to use DMA_BUF_IOCTL_SYNC
ioctl from 32bit application on 64bit kernel. Data structures for both 32
and 64bit modes are same, so there is no need for additional translation
layer.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1487683261-2655-1-git-send-email-m.szyprowski@samsung.com
7 years agodrm/vmwgfx: Work around drm removal of control nodes
Thomas Hellstrom [Tue, 21 Feb 2017 10:42:27 +0000 (17:42 +0700)]
drm/vmwgfx: Work around drm removal of control nodes

vmware tools has a daemon that gets layout information from the GUI and
forwards it to DRM so that the modesetting code can set preferred connector
locations and modes. This daemon was using control nodes but since control
nodes were just removed, make it possible for the daemon to use render- or
primary nodes instead. This is a bit ugly but will allow drm to proceed with
removal of the mostly unused control-node code and allow vmware to proceed
with fixing up automatic layout settings for gnome-shell/wayland.

We bump minor to inform user-space about the api change.

Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170221104227.2854-1-thellstrom@vmware.com
7 years agoMerge tag 'watchdog-for-linus-v4.11' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 26 Feb 2017 21:19:17 +0000 (13:19 -0800)]
Merge tag 'watchdog-for-linus-v4.11' of git://git./linux/kernel/git/groeck/linux-staging

Pull watchdog updates from Guenter Roeck:
 "Wim asked me to handle the watchdog pull request this time around.

  Key changes:

   - New drivers: Cortina Gemini, ZTE's zx2967 family, NIC7018

   - Convert to use device managed functions: ebc-c384_wdt, tegra_wdt,
     da9063_wdt, da9062_wdt, da9055_wdt, da9052_wdt, bcm2835_wdt,
     mena21_wdt, wm831x_wdt, digicolor_wdt, intel-mid_wdt, meson_wdt,
     sunxi_wdt, aspeed_wdt, coh901327_wdt, iTCO_wdt

   - Use watchdog core to install restart handler: tangox, dw_wdt,
     bcm2835_wdt, asm9260_wdt, bcm47xx_wdt

   - Convert ts72xx_wdt driver to watchdog core

   - Let core handle heartbeat in ep93xx_wdt driver

   - Enable COMPILE_TEST where possible

   - Various other improvements"

* tag 'watchdog-for-linus-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (54 commits)
  watchdog: s3c2410: Add prefix to local function
  watchdog: s3c2410: Select MFD_SYSCON on all Exynos platforms
  watchdog: s3c2410: Use dev_dbg instead of pr_info
  watchdog: s3c2410: Fix infinite interrupt in soft mode
  watchdog: s3c2410: Remove confusing CONFIG prefix from local defines
  watchdog: softdog: make pretimeout support a compile option
  watchdog: zx2967: add watchdog controller driver for ZTE's zx2967 family
  dt: bindings: add documentation for zx2967 family watchdog controller
  watchdog: sama5d4: Implement resume hook
  watchdog: sama5d4: Cache MR instead of a partial config
  watchdog: ts72xx_wdt: convert driver to watchdog core
  watchdog: ep93xx_wdt: cleanup and let the core handle the heartbeat
  watchdog: RDC321X_WDT always depends on PCI
  watchdog: add driver for Cortina Gemini watchdog
  watchdog: add DT bindings for Cortina Gemini
  watchdog: constify watchdog_ops structures
  watchdog: Introduce watchdog_stop_on_unregister helper
  watchdog: ebc-c384_wdt: Utilize devm_ functions in driver probe callback
  watchdog: tegra_wdt: Convert to use device managed functions
  watchdog: da9063_wdt: Convert to use device managed functions
  ...

7 years agoMerge tag 'linux-kselftest-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 25 Feb 2017 23:32:53 +0000 (15:32 -0800)]
Merge tag 'linux-kselftest-4.11-rc1' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull Kselftest update from Shuah Khan:
 "This update consists of:

   - fixes to several existing tests from Stafford Horne

   - cpufreq tests from Viresh Kumar

   - Selftest build and install fixes from Bamvor Jian Zhang and Michael
     Ellerman

   - Fixes to protection-keys tests from Dave Hansen

   - Warning fixes from Shuah Khan"

* tag 'linux-kselftest-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (28 commits)
  selftests/powerpc: Fix remaining fallout from recent changes
  selftests/powerpc: Fix the clean rule since recent changes
  selftests: Fix the .S and .S -> .o rules
  selftests: Fix the .c linking rule
  selftests: Fix selftests build to just build, not run tests
  selftests, x86, protection_keys: fix wrong offset in siginfo
  selftests, x86, protection_keys: fix uninitialized variable warning
  selftest: cpufreq: Update MAINTAINERS file
  selftest: cpufreq: Add special tests
  selftest: cpufreq: Add support to test cpufreq modules
  selftest: cpufreq: Add suspend/resume/hibernate support
  selftest: cpufreq: Add support for cpufreq tests
  selftests: Add intel_pstate to TARGETS
  selftests/intel_pstate: Update makefile to match new style
  selftests/intel_pstate: Fix warning on loop index overflow
  cpupower: Restore format of frequency-info limit
  selftests/futex: Add headers to makefile dependencies
  selftests/futex: Add stdio used for logging
  selftests: x86 protection_keys remove dead code
  selftests: x86 protection_keys fix unused variable compile warnings
  ...

7 years agoMerge tag 'for-linus-4.11-ofs2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 25 Feb 2017 23:02:10 +0000 (15:02 -0800)]
Merge tag 'for-linus-4.11-ofs2' of git://git./linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:
 "Orangefs: cleanups, a protocol fix and an added configuration button.

  Cleanups:

   - silence harmless integer overflow warning (from
     dan.carpenter@oracle.com)

   - Dan Carpenter influenced debugfs cleanups.

   - remove orangefs_backing_dev_info (from jack@suse.cz)

  Protocol fix:

   - fix buffer size mis-match between kernel space and user space

  New configuration button:

   - support readahead_readcnt parameter"

* tag 'for-linus-4.11-ofs2' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: fix buffer size mis-match between kernel space and user space.
  orangefs: Dan Carpenter influenced cleanups...
  orangefs: Remove orangefs_backing_dev_info
  orangefs: Support readahead_readcnt parameter.
  orangefs: silence harmless integer overflow warning

7 years agoMerge branch 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
Linus Torvalds [Sat, 25 Feb 2017 22:53:58 +0000 (14:53 -0800)]
Merge branch 'for-linus-4.11' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs updates from Chris Mason:
 "This has a series of fixes and cleanups that Dave Sterba has been
  collecting.

  There is a pretty big variety here, cleaning up internal APIs and
  fixing corner cases"

* 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (124 commits)
  Btrfs: use the correct type when creating cow dio extent
  Btrfs: fix deadlock between dedup on same file and starting writeback
  btrfs: use btrfs_debug instead of pr_debug in transaction abort
  btrfs: btrfs_truncate_free_space_cache always allocates path
  btrfs: free-space-cache, clean up unnecessary root arguments
  btrfs: convert btrfs_inc_block_group_ro to accept fs_info
  btrfs: flush_space always takes fs_info->fs_root
  btrfs: pass fs_info to (more) routines that are only called with extent_root
  btrfs: qgroup: Move half of the qgroup accounting time out of commit trans
  btrfs: remove unused parameter from adjust_slots_upwards
  btrfs: remove unused parameters from __btrfs_write_out_cache
  btrfs: remove unused parameter from cleanup_write_cache_enospc
  btrfs: remove unused parameter from __add_inode_ref
  btrfs: remove unused parameter from clone_copy_inline_extent
  btrfs: remove unused parameters from btrfs_cmp_data
  btrfs: remove unused parameter from __add_inline_refs
  btrfs: remove unused parameters from scrub_setup_wr_ctx
  btrfs: remove unused parameter from create_snapshot
  btrfs: remove unused parameter from init_first_rw_device
  btrfs: remove unused parameter from __btrfs_alloc_chunk
  ...

7 years agoMerge tag 'platform-drivers-x86-v4.11-1' of git://git.infradead.org/linux-platform...
Linus Torvalds [Sat, 25 Feb 2017 22:35:37 +0000 (14:35 -0800)]
Merge tag 'platform-drivers-x86-v4.11-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Darren Hart:
 "Big picture:

   - New intel_turbo_max_3 driver, providing max core frequency
     information to the scheduler. Intel PMC APL support, s0ix read API,
     and fixes.

   - New Silead touchscreen platform touchscreen descriptions.
     Additional hotkey support for the intel-hid driver.

   - New model support for dell-laptop and hp_accel.

   - Several cleanups, especially to the fujitsu-laptop and
     intel_mid_powerbtn drivers.

  Detail summary:

  platorm/x86:
   - silead depends on I2C being built-in
   - add support for devices with Silead touchscreens
   - Support Turbo Boost Max 3.0 for non HWP systems

  intel_turbo_max_3:
   - make it explicitly non-modular

  dell-laptop:
   - Add Latitude 7480 and others to the DMI whitelist

  intel-hid:
   - Support 5 button array

  thinkpad_acpi:
   - Call led_classdev_notify_brightness_hw_changed on kbd brightness change
   - Use brightness_set_blocking callback for LEDs
   - Stop setting led_classdev brightness directly

  acer-wmi:
   - add another KEY_WLAN keycode
   - Inform firmware that RF Button Driver is active
   - setup accelerometer when machine has appropriate notify event

  asus-wireless:
   - Fix indentation
   - Use per-HID HSWC parameters

  intel_pmc_ipc:
   - Add APL PMC PCI Id
   - read s0ix residency API
   - Remove unused iTCO_version variable

  alienware-wmi:
   - Remove header duplicate

  intel_pmc_core:
   - fix out-of-bounds accesses on stack

  intel_mid_powerbtn:
   - Use SCU IPC directly
   - Unify IRQ acknowledgment
   - Move comment to where it belongs
   - Unify PBSTATUS access
   - Remove snail address
   - Sort headers alphabetically
   - Join string literals
   - Enable driver for Merrifield
   - Acknowledge interrupts
   - Factor out mfld_ack()
   - Introduce driver data
   - Substitute mfld by mid
   - Convert to use devm_*()

  fujitsu-laptop:
   - make hotkey handling functions more similar
   - break up complex loop condition
   - move keycode processing to separate functions
   - decrease indentation in acpi_fujitsu_hotkey_notify()
   - simplify logolamp_get()
   - rework logolamp_set() to properly handle errors
   - set default trigger for radio LED to rfkill-any

  dell-smbios:
   - Auto-select as needed

  intel_mid_thermal:
   - Fix module autoload
   - Remove duplicated platform device ID

  mlx-platform:
   - mlxcpld-hotplug driver style fixes

  hp_accel:
   - Add support for HP ZBook 17"

* tag 'platform-drivers-x86-v4.11-1' of git://git.infradead.org/linux-platform-drivers-x86: (45 commits)
  platform/x86: intel_turbo_max_3: make it explicitly non-modular
  platform/x86: dell-laptop: Add Latitude 7480 and others to the DMI whitelist
  platform/x86: intel-hid: Support 5 button array
  platform/x86: thinkpad_acpi: Call led_classdev_notify_brightness_hw_changed on kbd brightness change
  platform/x86: thinkpad_acpi: Use brightness_set_blocking callback for LEDs
  platform/x86: thinkpad_acpi: Stop setting led_classdev brightness directly
  leds: class: Add new optional brightness_hw_changed attribute
  platform/x86: acer-wmi: add another KEY_WLAN keycode
  platform/x86: acer-wmi: Inform firmware that RF Button Driver is active
  platform/x86: asus-wireless: Fix indentation
  platform/x86: asus-wireless: Use per-HID HSWC parameters
  platform/x86: intel_pmc_ipc: Add APL PMC PCI Id
  platform/x86: intel_pmc_ipc: read s0ix residency API
  platform/x86: alienware-wmi: Remove header duplicate
  platform/x86: intel_mid_powerbtn: Use SCU IPC directly
  platform/x86: intel_mid_powerbtn: Unify IRQ acknowledgment
  platform/x86: intel_mid_powerbtn: Move comment to where it belongs
  platform/x86: intel_mid_powerbtn: Unify PBSTATUS access
  platform/x86: intel_pmc_core: fix out-of-bounds accesses on stack
  platform/x86: silead depends on I2C being built-in
  ...

7 years agoMerge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Linus Torvalds [Sat, 25 Feb 2017 22:28:06 +0000 (14:28 -0800)]
Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The usual collection of new drivers, non-critical fixes, and updates
  to existing clk drivers. The bulk of the work is on Allwinner and
  Rockchip SoCs, but there's also an Intel Atom driver in here too.

  New Drivers:
   - Tegra BPMP firmware
   - Hisilicon hi3660 SoCs
   - Rockchip rk3328 SoCs
   - Intel Atom PMC
   - STM32F746
   - IDT VersaClock 5P49V5923 and 5P49V5933
   - Marvell mv98dx3236 SoCs
   - Allwinner V3s SoCs

  Removed Drivers:
   - Samsung Exynos4415 SoCs

  Updates:
   - Migrate ABx500 to OF
   - Qualcomm IPQ4019 CPU clks and general PLL support
   - Qualcomm MSM8974 RPM
   - Rockchip non-critical fixes and clk id additions
   - Samsung Exynos4412 CPUs
   - Socionext UniPhier NAND and eMMC support
   - ZTE zx296718 i2s and other audio clks
   - Renesas CAN and MSIOF clks for R-Car M3-W
   - Renesas resets for R-Car Gen2 and Gen3 and RZ/G1
   - TI CDCE913CDCE937, and CDCE949 clk generators
   - Marvell Armada ap806 CPU frequencies
   - STM32F4* I2S/SAI support
   - Broadcom BCM2835 DSI support
   - Allwinner sun5i and A80 conversion to new style clk bindings"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (130 commits)
  clk: renesas: mstp: ensure register writes complete
  clk: qcom: Do not drop device node twice
  clk: mvebu: adjust clock handling for the CP110 system controller
  clk: mvebu: Expand mv98dx3236-core-clock support
  clk: zte: add i2s clocks for zx296718
  clk: sunxi-ng: sun9i-a80: Fix wrong pointer passed to PTR_ERR()
  clk: sunxi-ng: select SUNXI_CCU_MULT for sun5i
  clk: sunxi-ng: Check kzalloc() for errors and cleanup error path
  clk: tegra: Add BPMP clock driver
  clk: uniphier: add eMMC clock for LD11 and LD20 SoCs
  clk: uniphier: add NAND clock for all UniPhier SoCs
  ARM: dts: sun9i: Switch to new clock bindings
  clk: sunxi-ng: Add A80 Display Engine CCU
  clk: sunxi-ng: Add A80 USB CCU
  clk: sunxi-ng: Add A80 CCU
  clk: sunxi-ng: Support separately grouped PLL lock status register
  clk: sunxi-ng: mux: Get closest parent rate possible with CLK_SET_RATE_PARENT
  clk: sunxi-ng: mux: honor CLK_SET_RATE_NO_REPARENT flag
  clk: sunxi-ng: mux: Fix determine_rate for mux clocks with pre-dividers
  clk: qcom: SDHCI enablement on Nexus 5X / 6P
  ...

7 years agoMerge branch 'i2c/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 25 Feb 2017 22:21:18 +0000 (14:21 -0800)]
Merge branch 'i2c/for-4.11' of git://git./linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "I2C has for you two new drivers (Tegra BPMP and STM32F4), interrupt
  support for pca954x muxes, and a bunch of driver bugfixes and
  improvements. Nothing really special this cycle.

  A few commits have been added to my tree just recently. Those are the
  Tegra BPMP driver and a few straightforward bugfixes or cleanups which
  I prefer to have upstream rather soonish. The rest had proper
  linux-next exposure"

* 'i2c/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (25 commits)
  i2c: thunderx: Replace pci_enable_msix()
  i2c: exynos5: fix arbitration lost handling
  i2c: exynos5: disable fifo-almost-empty irq signal when necessary
  i2c: at91: ensure state is restored after suspending
  i2c: bcm2835: Avoid possible NULL ptr dereference
  i2c: Add Tegra BPMP I2C proxy driver
  dt-bindings: Add Tegra186 BPMP I2C binding
  misc: eeprom: at24: use device_property_*() functions instead of of_get_property()
  i2c: mux: pca954x: Add interrupt controller support
  dt: bindings: i2c-mux-pca954x: Add documentation for interrupt controller
  i2c: mux: pca954x: Add missing pca9542 definition to chip_desc
  i2c: riic: correctly finish transfers
  i2c: i801: Add support for Intel Gemini Lake
  i2c: mux: pca9541: Export OF device ID table as module aliases
  i2c: mux: pca954x: Export OF device ID table as module aliases
  i2c: mux: mlxcpld: remove unused including <linux/version.h>
  i2c: busses: constify i2c_algorithm structures
  i2c: i2c-mux-gpio: rename i2c-gpio-mux to i2c-mux-gpio
  i2c: sh_mobile: document support for r8a7796 (R-Car M3-W)
  i2c: i2c-cros-ec-tunnel: Reduce logging noise
  ...

7 years agoMerge tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledfor...
Linus Torvalds [Sat, 25 Feb 2017 21:45:43 +0000 (13:45 -0800)]
Merge tag 'for-next-dma_ops' of git://git./linux/kernel/git/dledford/rdma

Pull rdma DMA mapping updates from Doug Ledford:
 "Drop IB DMA mapping code and use core DMA code instead.

  Bart Van Assche noted that the ib DMA mapping code was significantly
  similar enough to the core DMA mapping code that with a few changes it
  was possible to remove the IB DMA mapping code entirely and switch the
  RDMA stack to use the core DMA mapping code.

  This resulted in a nice set of cleanups, but touched the entire tree
  and has been kept separate for that reason."

* tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits)
  IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it
  IB/core: Remove ib_device.dma_device
  nvme-rdma: Switch from dma_device to dev.parent
  RDS: net: Switch from dma_device to dev.parent
  IB/srpt: Modify a debug statement
  IB/srp: Switch from dma_device to dev.parent
  IB/iser: Switch from dma_device to dev.parent
  IB/IPoIB: Switch from dma_device to dev.parent
  IB/rxe: Switch from dma_device to dev.parent
  IB/vmw_pvrdma: Switch from dma_device to dev.parent
  IB/usnic: Switch from dma_device to dev.parent
  IB/qib: Switch from dma_device to dev.parent
  IB/qedr: Switch from dma_device to dev.parent
  IB/ocrdma: Switch from dma_device to dev.parent
  IB/nes: Remove a superfluous assignment statement
  IB/mthca: Switch from dma_device to dev.parent
  IB/mlx5: Switch from dma_device to dev.parent
  IB/mlx4: Switch from dma_device to dev.parent
  IB/i40iw: Remove a superfluous assignment statement
  IB/hns: Switch from dma_device to dev.parent
  ...

7 years agoMerge tag 'fbdev-v4.11' of git://github.com/bzolnier/linux
Linus Torvalds [Sat, 25 Feb 2017 21:20:22 +0000 (13:20 -0800)]
Merge tag 'fbdev-v4.11' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:

 - fix for font color when console is switched to another fb driver

 - deferred probing fixes for simplefb driver

 - preparations to add support of an optional GPIO to enable panel for
   ARM CLCD driver

 - some improvements for ssd1307fb driver

 - cleanups for OMAP fbdev LCD drivers

 - misc fixes/cleanups for various fb drivers

* tag 'fbdev-v4.11' of git://github.com/bzolnier/linux: (30 commits)
  video: fbdev: fsl-diu-fb: fix spelling mistake "palette"
  fbdev: ssd1307fb: include linux/gpio/consumer.h
  video: fbdev: fsl-diu-fb: remove impossible condition
  video: fbdev: amifb: remove impossible condition
  fbdev/ssd1307fb: clear screen in probe
  fbdev/ssd1307fb: add support to enable VBAT
  fbdev: ssd1307fb: Make reset gpio devicetree property optional
  fbdev: ssd1307fb: Remove reset-active-low from the DT binding document
  fbdev: ssd1307fb: Start to use gpiod API for reset gpio
  video: fbdev: sh_mobile_lcdcfb: fix error return code in sh_mobile_lcdc_probe()
  video: fbdev: offb: switch to using for_each_node_by_type
  video/console: use setup_timer and mod_timer instead of init_timer
  fbdev: omap/lcd: Make callbacks optional
  fbdev: omap/lcd: Staticize non-exported lcd_panel structs
  fbdev: omap/lcd: Remove no-op driver callbacks
  video/mbx: use simple_open()
  video: fbdev: stifb: handle NULL return value from ioremap_nocache
  video: fbdev: pmagb-b-fb: Remove bad `__init' annotation
  video: fbdev: pmag-ba-fb: Remove bad `__init' annotation
  video: ARM CLCD: use panel device node for getting backlight and mode
  ...

7 years agotreewide: Remove remaining executable attributes from source files
Joe Perches [Fri, 24 Feb 2017 06:29:40 +0000 (22:29 -0800)]
treewide: Remove remaining executable attributes from source files

These are the current source files that should not have
executable attributes set.

[ Normally this would be sent through Andrew Morton's tree
  but his quilt tools don't like permission only patches. ]

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Sat, 25 Feb 2017 18:29:09 +0000 (10:29 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge more updates from Andrew Morton:

 - almost all of the rest of MM

 - misc bits

 - KASAN updates

 - procfs

 - lib/ updates

 - checkpatch updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (124 commits)
  checkpatch: remove false unbalanced braces warning
  checkpatch: notice unbalanced else braces in a patch
  checkpatch: add another old address for the FSF
  checkpatch: update $logFunctions
  checkpatch: warn on logging continuations
  checkpatch: warn on embedded function names
  lib/lz4: remove back-compat wrappers
  fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version
  crypto: change LZ4 modules to work with new LZ4 module version
  lib/decompress_unlz4: change module to work with new LZ4 module version
  lib: update LZ4 compressor module
  lib/test_sort.c: make it explicitly non-modular
  lib: add CONFIG_TEST_SORT to enable self-test of sort()
  rbtree: use designated initializers
  linux/kernel.h: fix DIV_ROUND_CLOSEST to support negative divisors
  lib/find_bit.c: micro-optimise find_next_*_bit
  lib: add module support to atomic64 tests
  lib: add module support to glob tests
  lib: add module support to crc32 tests
  kernel/ksysfs.c: add __ro_after_init to bin_attribute structure
  ...

7 years agomac80211_hwsim: Replace bogus hrtimer clockid
Thomas Gleixner [Sat, 25 Feb 2017 10:27:37 +0000 (11:27 +0100)]
mac80211_hwsim: Replace bogus hrtimer clockid

mac80211_hwsim initializes a hrtimer with clockid CLOCK_MONOTONIC_RAW.
That's not supported.

Use CLOCK_MONOTNIC instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agoMerge tag 'v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux...
Mike Marshall [Sat, 25 Feb 2017 16:12:48 +0000 (11:12 -0500)]
Merge tag 'v4.10' of git://git./linux/kernel/git/torvalds/linux into for-next

Linux 4.10

7 years agoplatform/x86: intel_turbo_max_3: make it explicitly non-modular
Paul Gortmaker [Tue, 14 Feb 2017 00:37:00 +0000 (19:37 -0500)]
platform/x86: intel_turbo_max_3: make it explicitly non-modular

The Kconfig currently controlling compilation of this code is:

drivers/platform/x86/Kconfig:config INTEL_TURBO_MAX_3
drivers/platform/x86/Kconfig:   bool "Intel Turbo Boost Max Technology 3.0 enumeration driver"

...meaning that it currently is not being built as a module by anyone.

Lets remove the couple traces of modular infrastructure use, so that
when reading the driver there is no doubt it is builtin-only.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

We do uncover some implicit includes during build coverage that
were hidden behind the module.h which pulls in a lot of dependants.

Cc: Andy Shevchenko <andy@infradead.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
7 years agoplatform/x86: dell-laptop: Add Latitude 7480 and others to the DMI whitelist
Alex Hung [Thu, 16 Feb 2017 12:58:03 +0000 (20:58 +0800)]
platform/x86: dell-laptop: Add Latitude 7480 and others to the DMI whitelist

This is to support Latitude 7480 and many other newer Dell laptops.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
7 years agoplatform/x86: intel-hid: Support 5 button array
Alex Hung [Tue, 14 Feb 2017 07:20:34 +0000 (15:20 +0800)]
platform/x86: intel-hid: Support 5 button array

New firmwares include a feature called 5 button array that supports
super key, volume up/down, rotation lock and power button. Support
for this feature is required to fix power button on some recent
systems.

This patch was tested on a Dell Latitude 7480.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Reviewed-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
7 years agoplatform/x86: thinkpad_acpi: Call led_classdev_notify_brightness_hw_changed on kbd...
Hans de Goede [Thu, 9 Feb 2017 15:44:13 +0000 (16:44 +0100)]
platform/x86: thinkpad_acpi: Call led_classdev_notify_brightness_hw_changed on kbd brightness change

Make thinkpad_acpi call led_classdev_notify_brightness_hw_changed on the
kbd_led led_classdev registered by thinkpad_acpi when the kbd backlight
brightness is changed through the hotkey.

This will allow userspace to monitor (poll) for brightness changes on
these LEDs caused by the hotkey.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
7 years agoplatform/x86: thinkpad_acpi: Use brightness_set_blocking callback for LEDs
Hans de Goede [Thu, 9 Feb 2017 15:44:12 +0000 (16:44 +0100)]
platform/x86: thinkpad_acpi: Use brightness_set_blocking callback for LEDs

Now a days the LED core can take care of executing brightness_set from
a workqueue if it needs to sleep, make use of this and remove a bunch
of DIY code for this.

Since this commit removes the workqueue usage for LEDs, the
led_sysfs_blink_set callback may now also sleep, this is fine.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
7 years agoplatform/x86: thinkpad_acpi: Stop setting led_classdev brightness directly
Hans de Goede [Thu, 9 Feb 2017 15:44:11 +0000 (16:44 +0100)]
platform/x86: thinkpad_acpi: Stop setting led_classdev brightness directly

There is no need to set the led_classdev's brightness value from
its set_brightness callback, this is taken care of by the led-core and
thinkpad_acpi really should not be mucking with it.

Note that kbdlight_set_level_and_update() is still used by the old
thinpad_acpi specific sysfs interface for the led, so we cannot
remove it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
7 years agoleds: class: Add new optional brightness_hw_changed attribute
Hans de Goede [Sun, 29 Jan 2017 13:42:52 +0000 (14:42 +0100)]
leds: class: Add new optional brightness_hw_changed attribute

Some LEDs may have their brightness level changed autonomously
(outside of kernel control) by hardware / firmware. This commit
adds support for an optional brightness_hw_changed attribute to
signal such changes to userspace (if a driver can detect them):

What: /sys/class/leds/<led>/brightness_hw_changed
Date: January 2017
KernelVersion: 4.11
Description:
Last hardware set brightness level for this LED. Some LEDs
may be changed autonomously by hardware/firmware. Only LEDs
where this happens and the driver can detect this, will
have this file.

This file supports poll() to detect when the hardware
changes the brightness.

Reading this file will return the last brightness level set
by the hardware, this may be different from the current
brightness.

Drivers which want to support this, simply add LED_BRIGHT_HW_CHANGED to
their flags field and call led_classdev_notify_brightness_hw_changed()
with the hardware set brightness when they detect a hardware / firmware
triggered brightness change.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
7 years agoplatform/x86: acer-wmi: add another KEY_WLAN keycode
Chris Chiu [Wed, 8 Feb 2017 13:51:41 +0000 (07:51 -0600)]
platform/x86: acer-wmi: add another KEY_WLAN keycode

Now that we have informed the firmware that the RF Button driver is
active, laptops such as the Acer TravelMate P238-M will generate
a WMI key event with code 0x86 when the Fn+F3 airplane mode key is
pressed.

Add this keycode to the table so that it is converted to an appropriate
input event.

Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoplatform/x86: acer-wmi: Inform firmware that RF Button Driver is active
Chris Chiu [Wed, 8 Feb 2017 13:51:40 +0000 (07:51 -0600)]
platform/x86: acer-wmi: Inform firmware that RF Button Driver is active

The same method to activate LM(Launch Manager) can also be used to
activate the RF Button driver with different bit toggled in the same
lm_status. To express that many functions this byte field can achieve,
rename the lm_status to app_status. And also the app_mask is the bit
mask which specifically indicate which bits are going to be changed.

This solves a problem where the AR9565 wifi included in the
Acer Aspire ES1-421 is permanently hard blocked according to the rfkill
GPIO read by ath9k.

Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoplatform/x86: asus-wireless: Fix indentation
João Paulo Rechi Vita [Mon, 6 Feb 2017 15:20:21 +0000 (10:20 -0500)]
platform/x86: asus-wireless: Fix indentation

Fix indentation problem introduced when this driver was first merged into
the kernel.

Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoplatform/x86: asus-wireless: Use per-HID HSWC parameters
João Paulo Rechi Vita [Tue, 7 Feb 2017 21:45:10 +0000 (16:45 -0500)]
platform/x86: asus-wireless: Use per-HID HSWC parameters

Some Asus machines use 0x4/0x5 as their LED on/off values, while others
use 0x0/0x1, as shown in the DSDT excerpts below. Luckily it seems this
behavior is tied to different HIDs, after looking at 44 DSDTs from
different Asus models.

Another small difference is that a few of them call GWBL instead of
OWGS, and SWBL instead of OWGD. That does not seem to make a difference
for asus-wireless, and is additional reasoning to not try to call these
methods directly.

Device (ASHS)                       | Device (ASHS)
{                                   | {
    Name (_HID, "ATK4002")          |     Name (_HID, "ATK4001")
    Method (HSWC, 1, Serialized)    |     Method (HSWC, 1, Serialized)
    {                               |     {
        If ((Arg0 < 0x02))          |         If ((Arg0 < 0x02))
        {                           |         {
            OWGD (Arg0)             |             OWGD (Arg0)
            Return (One)            |             Return (One)
        }                           |         }
        If ((Arg0 == 0x02))         |
        {                           |         If ((Arg0 == 0x02))
            Local0 = OWGS ()        |         {
            If (Local0)             |             Return (OWGS ())
            {                       |         }
                    Return (0x05)   |
            }                       |         If ((Arg0 == 0x03))
            Else                    |         {
            {                       |             Return (0xFF)
                    Return (0x04)   |         }
            }                       |
        }                           |         If ((Arg0 == 0x80))
        If ((Arg0 == 0x03))         |         {
        {                           |            Return (One)
            Return (0xFF)           |         }
        }                           |     }
        If ((Arg0 == 0x04))         |     Method (_STA, 0, NotSerialized)
        {                           |     {
            OWGD (Zero)             |         If ((MSOS () >= OSW8))
            Return (One)            |         {
        }                           |             Return (0x0F)
        If ((Arg0 == 0x05))         |         }
        {                           |         Else
            OWGD (One)              |         {
            Return (One)            |             Return (Zero)
        }                           |         }
        If ((Arg0 == 0x80))         |     }
        {                           | }
            Return (One)            |
        }                           |
    }                               |
    Method (_STA, 0, NotSerialized) |
    {                               |
        If ((MSOS () >= OSW8))      |
        {                           |
            Return (0x0F)           |
        }                           |
        Else                        |
        {                           |
            Return (Zero)           |
        }                           |
    }                               |
}                                   |

Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoplatform/x86: intel_pmc_ipc: Add APL PMC PCI Id
Rajneesh Bhardwaj [Mon, 13 Feb 2017 10:41:47 +0000 (16:11 +0530)]
platform/x86: intel_pmc_ipc: Add APL PMC PCI Id

This patch adds the PCI Device id for Power Management Controller on Intel
Apollo Lake platforms.

Intel PMC IPC Driver loads as a platform driver on Apollo Lake platforms
since Intel BIOS hides the PCI Configuration space for 0:13:1 and
re-enumerates it as ACPI device (INT34D2). The correct PCI Device ID should
be added if some platform firmware choses to enumerate the device via PCI
space.

Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoplatform/x86: intel_pmc_ipc: read s0ix residency API
Shanth Murthy [Mon, 13 Feb 2017 12:02:52 +0000 (04:02 -0800)]
platform/x86: intel_pmc_ipc: read s0ix residency API

This patch adds a new API to indicate S0ix residency in usec. It utilizes
the PMC Global Control Registers (GCR) to read deep and shallow
S0ix residency.

PMC MMIO resources:
        o Lower 4kB: IPC1 (PMC inter-processor communication) interface
        o Upper 4kB: GCR (Global Control Registers)

This enables the power management framework to take corrective actions when
the platform fails to enter S0ix after kernel freeze as part of the suspend
to idle flow. (echo freeze > /sys/power/state).

This is expected to be used with a S0ix failsafe framework such as:
<https://lwn.net/Articles/689505/>

[rajneesh: folded in "fix division in 32-bit case" from Andy Shevchenko]
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Signed-off-by: Shanth Murthy <shanth.murthy@intel.com>
[andy: fixed kbuild error, removed "total" from variables, fixed macro]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoplatform/x86: alienware-wmi: Remove header duplicate
Andy Shevchenko [Wed, 8 Feb 2017 15:33:01 +0000 (17:33 +0200)]
platform/x86: alienware-wmi: Remove header duplicate

No need to #include <linux/acpi.h> twice. Remove second occurrence.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoplatform/x86: intel_mid_powerbtn: Use SCU IPC directly
Andy Shevchenko [Wed, 8 Feb 2017 17:03:19 +0000 (19:03 +0200)]
platform/x86: intel_mid_powerbtn: Use SCU IPC directly

On older Intel MID platforms is using SCU IPC library beneath MSIC
calls.

To make access unified between old and new platforms use SCU IPC library
directly. It's safe since serialization is done in the library.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoplatform/x86: intel_mid_powerbtn: Unify IRQ acknowledgment
Andy Shevchenko [Thu, 2 Feb 2017 17:54:28 +0000 (19:54 +0200)]
platform/x86: intel_mid_powerbtn: Unify IRQ acknowledgment

The IRQ on Intel Merrifield can be acknowledged in the similar way it's
done for previous MID platforms. Unify acknowledgment via SCU IPC.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7 years agoMerge tag 'openrisc-for-linus' of git://github.com/openrisc/linux
Linus Torvalds [Sat, 25 Feb 2017 02:37:03 +0000 (18:37 -0800)]
Merge tag 'openrisc-for-linus' of git://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
 "Highlights include:

   - optimized memset and memcpy routines, ~20% boot time saving

   - support for cpu idling

   - adding support for l.swa and l.lwa atomic operations (in spec from
     2014)

   - use atomics to implement: bitops, cmpxchg, futex

   - the atomics are in preparation for SMP support"

* tag 'openrisc-for-linus' of git://github.com/openrisc/linux: (25 commits)
  openrisc: head: Init r0 to 0 on start
  openrisc: Export ioremap symbols used by modules
  arch/openrisc/lib/memcpy.c: use correct OR1200 option
  openrisc: head: Remove unused strings
  openrisc: head: Move init strings to rodata section
  openrisc: entry: Fix delay slot detection
  openrisc: entry: Whitespace and comment cleanups
  scripts/checkstack.pl: Add openrisc support
  MAINTAINERS: Add the openrisc official repository
  openrisc: Add .gitignore
  openrisc: Add optimized memcpy routine
  openrisc: Add optimized memset
  openrisc: Initial support for the idle state
  openrisc: Fix the bitmask for the unit present register
  openrisc: remove unnecessary stddef.h include
  openrisc: add futex_atomic_* implementations
  openrisc: add optimized atomic operations
  openrisc: add cmpxchg and xchg implementations
  openrisc: add atomic bitops
  openrisc: add l.lwa/l.swa emulation
  ...

7 years agocheckpatch: remove false unbalanced braces warning
Sven Eckelmann [Fri, 24 Feb 2017 23:01:43 +0000 (15:01 -0800)]
checkpatch: remove false unbalanced braces warning

Lines containing "} else {" should not be detected as unbalanced braces.
But the second check can be reduced to ".+else\s*{" and it therefore
never checked if the beginning of a line contains any other character
(like the relevant "}").  This check would also return true for "} else
{" and create warnings like

    CHECK: Unbalanced braces around else statement
    #391: FILE: ./net/batman-adv/tvlv.c:391:
    +   } else {

The check can be changed to check the whole line for the missing "}" to
avoid this false positive.

Fixes: 0d1532456c26 ("checkpatch: notice unbalanced else braces in a patch")
Link: http://lkml.kernel.org/r/20170220121644.12209-1-sven@narfation.org
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agocheckpatch: notice unbalanced else braces in a patch
Joe Perches [Fri, 24 Feb 2017 23:01:41 +0000 (15:01 -0800)]
checkpatch: notice unbalanced else braces in a patch

Patches that add or modify code like

} else
<foo>
or
else {
<bar>

where one branch appears to have a brace and the other branch does not
have a brace should emit a --strict style message.

Link: http://lkml.kernel.org/r/c6be32747fc725cbc235802991746700a0f54fdc.1486754390.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agocheckpatch: add another old address for the FSF
Matthew Wilcox [Fri, 24 Feb 2017 23:01:38 +0000 (15:01 -0800)]
checkpatch: add another old address for the FSF

We still have a lot of old addresses for the FSF in the kernel.

  willy@harry:~/kernel/idr$ git grep '675 Mass' |wc -l
  1502
  willy@harry:~/kernel/idr$ git grep '59 Temple' |wc -l
  2825
  willy@harry:~/kernel/idr$ git grep '51 Franklin' |wc -l
  2020

Let's discourage adding the oldest one too.

Link: http://lkml.kernel.org/r/20170128173052.GA23532@bombadil.infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agocheckpatch: update $logFunctions
Miles Chen [Fri, 24 Feb 2017 23:01:34 +0000 (15:01 -0800)]
checkpatch: update $logFunctions

Currently checkpatch.pl does not recognize printk_deferred* functions as
log functions and complains about the line length of printk_deferred*
functions.  Add printk_deferred* to logFunctions to fix it.

Link: http://lkml.kernel.org/r/1484537124-18083-1-git-send-email-miles.chen@mediatek.com
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agocheckpatch: warn on logging continuations
Joe Perches [Fri, 24 Feb 2017 23:01:31 +0000 (15:01 -0800)]
checkpatch: warn on logging continuations

pr_cont(...) and printk(KERN_CONT ...) uses should be discouraged
as their output can be interleaved by multiple logging processes.

Link: http://lkml.kernel.org/r/7100ba00098694ec81471a299583ed068975fd05.1483465888.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agocheckpatch: warn on embedded function names
Joe Perches [Fri, 24 Feb 2017 23:01:28 +0000 (15:01 -0800)]
checkpatch: warn on embedded function names

Embedded function names are less appropriate to use when refactoring can
cause function renaming.  Prefer the use of "%s", __func__ to embedded
function names.

Link: http://lkml.kernel.org/r/ac9631fdbac5af3507c5bfe88ad9064f0ed764ec.1483510416.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agolib/lz4: remove back-compat wrappers
Sven Schmidt [Fri, 24 Feb 2017 23:01:25 +0000 (15:01 -0800)]
lib/lz4: remove back-compat wrappers

Remove the functions introduced as wrappers for providing backwards
compatibility to the prior LZ4 version.  They're not needed anymore
since there's no callers left.

Link: http://lkml.kernel.org/r/1486321748-19085-6-git-send-email-4sschmid@informatik.uni-hamburg.de
Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Bongkyu Kim <bongkyu.kim@lge.com>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agofs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version
Sven Schmidt [Fri, 24 Feb 2017 23:01:22 +0000 (15:01 -0800)]
fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version

Update fs/pstore and fs/squashfs to use the updated functions from the
new LZ4 module.

Link: http://lkml.kernel.org/r/1486321748-19085-5-git-send-email-4sschmid@informatik.uni-hamburg.de
Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Bongkyu Kim <bongkyu.kim@lge.com>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agocrypto: change LZ4 modules to work with new LZ4 module version
Sven Schmidt [Fri, 24 Feb 2017 23:01:19 +0000 (15:01 -0800)]
crypto: change LZ4 modules to work with new LZ4 module version

Update the crypto modules using LZ4 compression as well as the test
cases in testmgr.h to work with the new LZ4 module version.

Link: http://lkml.kernel.org/r/1486321748-19085-4-git-send-email-4sschmid@informatik.uni-hamburg.de
Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Bongkyu Kim <bongkyu.kim@lge.com>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agolib/decompress_unlz4: change module to work with new LZ4 module version
Sven Schmidt [Fri, 24 Feb 2017 23:01:16 +0000 (15:01 -0800)]
lib/decompress_unlz4: change module to work with new LZ4 module version

Update the unlz4 wrapper to work with the updated LZ4 kernel module
version.

Link: http://lkml.kernel.org/r/1486321748-19085-3-git-send-email-4sschmid@informatik.uni-hamburg.de
Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Cc: Bongkyu Kim <bongkyu.kim@lge.com>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 years agolib: update LZ4 compressor module
Sven Schmidt [Fri, 24 Feb 2017 23:01:12 +0000 (15:01 -0800)]
lib: update LZ4 compressor module

Patch series "Update LZ4 compressor module", v7.

This patchset updates the LZ4 compression module to a version based on
LZ4 v1.7.3 allowing to use the fast compression algorithm aka LZ4 fast
which provides an "acceleration" parameter as a tradeoff between high
compression ratio and high compression speed.

We want to use LZ4 fast in order to support compression in lustre and
(mostly, based on that) investigate data reduction techniques in behalf
of storage systems.

Also, it will be useful for other users of LZ4 compression, as with LZ4
fast it is possible to enable applications to use fast and/or high
compression depending on the usecase.  For instance, ZRAM is offering a
LZ4 backend and could benefit from an updated LZ4 in the kernel.

LZ4 homepage: http://www.lz4.org/
LZ4 source repository: https://github.com/lz4/lz4 Source version: 1.7.3

Benchmark (taken from [1], Core i5-4300U @1.9GHz):
----------------|--------------|----------------|----------
Compressor      | Compression  | Decompression  | Ratio
----------------|--------------|----------------|----------
memcpy          |  4200 MB/s   |  4200 MB/s     | 1.000
LZ4 fast 50     |  1080 MB/s   |  2650 MB/s     | 1.375
LZ4 fast 17     |   680 MB/s   |  2220 MB/s     | 1.607
LZ4 fast 5      |   475 MB/s   |  1920 MB/s     | 1.886
LZ4 default     |   385 MB/s   |  1850 MB/s     | 2.101

[1] http://fastcompression.blogspot.de/2015/04/sampling-or-faster-lz4.html

[PATCH 1/5] lib: Update LZ4 compressor module
[PATCH 2/5] lib/decompress_unlz4: Change module to work with new LZ4 module version
[PATCH 3/5] crypto: Change LZ4 modules to work with new LZ4 module version
[PATCH 4/5] fs/pstore: fs/squashfs: Change usage of LZ4 to work with new LZ4 version
[PATCH 5/5] lib/lz4: Remove back-compat wrappers

This patch (of 5):

Update the LZ4 kernel module to LZ4 v1.7.3 by Yann Collet.  The kernel
module is inspired by the previous work by Chanho Min.  The updated LZ4
module will not break existing code since the patchset contains
appropriate changes.

API changes:

New method LZ4_compress_fast which differs from the variant available in
kernel by the new acceleration parameter, allowing to trade compression
ratio for more compression speed and vice versa.

LZ4_decompress_fast is the respective decompression method, featuring a
very fast decoder (multiple GB/s per core), able to reach RAM speed in
multi-core systems.  The decompressor allows to decompress data
compressed with LZ4 fast as well as the LZ4 HC (high compression)
algorithm.

Also the useful functions LZ4_decompress_safe_partial and
LZ4_compress_destsize were added.  The latter reverses the logic by
trying to compress as much data as possible from source to dest while
the former aims to decompress partial blocks of data.

A bunch of streaming functions were also added which allow
compressig/decompressing data in multiple steps (so called "streaming
mode").

The methods lz4_compress and lz4_decompress_unknownoutputsize are now
known as LZ4_compress_default respectivley LZ4_decompress_safe.  The old
methods will be removed since there's no callers left in the code.

[arnd@arndb.de: fix KERNEL_LZ4 support]
Link: http://lkml.kernel.org/r/20170208211946.2839649-1-arnd@arndb.de
[akpm@linux-foundation.org: simplify]
[akpm@linux-foundation.org: fix the simplification]
[4sschmid@informatik.uni-hamburg.de: fix performance regressions]
Link: http://lkml.kernel.org/r/1486898178-17125-2-git-send-email-4sschmid@informatik.uni-hamburg.de
[4sschmid@informatik.uni-hamburg.de: v8]
Link: http://lkml.kernel.org/r/1487182598-15351-2-git-send-email-4sschmid@informatik.uni-hamburg.de
Link: http://lkml.kernel.org/r/1486321748-19085-2-git-send-email-4sschmid@informatik.uni-hamburg.de
Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Bongkyu Kim <bongkyu.kim@lge.com>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>