Ice Lake Neural Network Processor for deep learning inference a.k.a.
ICL-NNPI can re-use Ice Lake Mobile regmap to enable Intel PMC Core
driver on it.
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: platform-driver-x86@vger.kernel.org
Link: https://lkml.org/lkml/2019/6/5/1034
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The SPI bus creates a device with the modalias of "xo1.75-ec". This
fixes XO-1.75 EC driver autoloading
Fixes: 0c3d931b3a ("Platform: OLPC: Add XO-1.75 EC driver")
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Despite a proper NULL-termination after strncpy(..., ..., IFNAMSIZ - 1),
GCC8 still complains about *expected* string truncation:
xsk.c:330:2: error: 'strncpy' output may be truncated copying 15 bytes
from a string of length 15 [-Werror=stringop-truncation]
strncpy(ifr.ifr_name, xsk->ifname, IFNAMSIZ - 1);
This patch gets rid of the issue altogether by using memcpy instead.
There is no performance regression, as strncpy will still copy and fill
all of the bytes anyway.
v1->v2:
- rebase against bpf tree.
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Now that IB core supports RDMA device binding with specific net namespace,
enable IB core to accept netlink commands in non init_net namespaces.
This is done by having per net namespace netlink socket.
At present only netlink device handling client RDMA_NL_NLDEV supports
device handling in multiple net namespaces. Hence do not accept netlink
messages for other clients in non init_net net namespaces.
Link: https://lore.kernel.org/r/20190723070205.6247-1-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Add a description for the context parameter in the struct wmi_device_id.
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: a48e23385f ("platform/x86: wmi: add context pointer field to struct wmi_device_id")
Signed-off-by: Mattias Jacobsson <2pi@mok.nu>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Only first MODULE_SOFTDEP statement is handled per module.
Multiple dependencies must be expressed in a single statement.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: "Enrico Weigelt, metux IT consult" <info@metux.net>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andy Shevchenko <andy@infradead.org>
[andy: massaged commit message]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Information provided by qp_has_rq() and used latter is boolean, so update
callers to proper type.
Link: https://lore.kernel.org/r/20190704130936.8705-3-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The mlx4 WQ is implemented with HW QP without special HW object. Current
implementation which tried to reuse the code did it with common QP
creation flows. Such decision caused to the absence of mlx4_ib_wq struct,
which is needed to ensure proper allocation of ib_wq inside of IB/core.
Separate create_qp_common() to pure QP flow and to create_rq() for RWQ.
Link: https://lore.kernel.org/r/20190704130936.8705-2-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Instead of using to_pci_dev + pci_get_drvdata, use dev_get_drvdata to make
the code simpler.
Link: https://lore.kernel.org/r/20190723114928.18424-1-hslester96@gmail.com
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Fix the below warning reported by coccicheck:
drivers/infiniband/hw/qedr/verbs.c:2454:5-7: Unneeded variable: "rc".
Return "0" on line 2499
Link: https://lore.kernel.org/r/20190716173712.GA12949@hari-Inspiron-1545
Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Fix the below warning reported by coccicheck:
drivers/infiniband/hw/qib/qib_file_ops.c:1792:5-8: Unneeded variable:
"ret". Return "0" on line 1876
Link: https://lore.kernel.org/r/20190716172924.GA12241@hari-Inspiron-1545
Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
drivers/regulator/act8865-regulator.c:447:8-14: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Fixes: 2d09a79bf6 ("regulator: act8865: Add support for act8600 charger")
CC: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: kbuild test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20190724092236.witxtfmubun25l2t@1905cc33b6dd
Signed-off-by: Mark Brown <broonie@kernel.org>
Adds the codec driver for the CS47L92 SmartCodec. This is a
multi-functional codec based on the Cirrus Logic Madera platform.
Signed-off-by: Stuart Henderson <stuarth@opensource.wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20190725163931.24964-3-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Adds the codec driver for the CS47L15 SmartCodec. This is a
multi-functional codec based on the Cirrus Logic Madera platform.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Jaswinder Jassal <jjassal@opensource.wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20190725163931.24964-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There is no need for end drivers to add helper functions to allow the
bus error handler to be called, simply update the prototype so it can be
called directly.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20190725163931.24964-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use the proper module name. The objs assignments are already there.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Mark Brown <broonie@kernel.org>0
Link: https://lore.kernel.org/r/20190725133743.22145-1-perex@perex.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
Use the videodev-$(CONFIG_FOO) syntax to simplify the Makefile.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Rename:
vp8_dec_mc_filter -> hantro_vp8_dec_mc_filter
As other drivers may end implementing something with the same
name.
So, prepend driver's name here, in order to make symbol namespace
cleaner.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Rockchip RK3399 SoC has the same Hantro G1 IP block
as RK3288, but the registers are entirely different.
In a similar fashion as MPEG-2 decoding, it's simpler
to just add a separate implementation.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
In order to introduce support for RK3399 VP8 decoding,
move some common VP8 code. This will be reused by
the RK3399 implementation, reducing code duplication.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Pull NVMe fixes from Christoph.
* 'nvme-5.3' of git://git.infradead.org/nvme:
Revert "nvme-pci: don't create a read hctx mapping without read queues"
nvme: fix multipath crash when ANA is deactivated
nvme: fix memory leak caused by incorrect subsystem free
nvme: ignore subnqn for ADATA SX6000LNP
Daniel reports that when testing an http server that uses io_uring
to poll for incoming connections, sometimes it hard crashes. This is
due to an uninitialized list member for the io_uring request. Normally
this doesn't trigger and none of the test cases caught it.
Reported-by: Daniel Kozak <kozzi11@gmail.com>
Tested-by: Daniel Kozak <kozzi11@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
GCC8 started emitting warning about using strncpy with number of bytes
exactly equal destination size which could lead to non-zero terminated
string being copied. Use "SYSFS_PATH_MAX - 1" & "SYSFS_BUS_ID_SIZE - 1"
as number of bytes to ensure name is always zero-terminated.
Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190725132209.GA27590@jerryopenix
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
And use them where appropriate.
We might want to move hantro_{prepare,finish}_run() calls to
device_run() and have a 2-step approach similar to cedrus (prepare +
trigger) at some point, but let's keep that for later.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
And replace all calls to v4l2_m2m_next_{src,dst}_buf() by
hantro_get_{src,dst}_buf() one.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
controls[] is not supposed to be modified at runtime, let's make it
explicit by adding a const specifier.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
- Initialize the power capping subsystem and the RAPL driver earlier
in case the int340X thermal driver is built-in and attempts to
register an MMIO interface for RAPL which must not happen before
the requisite infrastructure is ready (Zhang Rui).
- Fix the int340X thermal driver's RAPL MMIO interface registration
error path (Rafael Wysocki).
- Fix possible use-after-free in the pasemi cpufreq driver (Wen Yang).
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Merge tag 'pm-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki
"These fix two issues related to the RAPL MMIO interface support added
recently and one cpufreq driver issue.
Specifics:
- Initialize the power capping subsystem and the RAPL driver earlier
in case the int340X thermal driver is built-in and attempts to
register an MMIO interface for RAPL which must not happen before
the requisite infrastructure is ready (Zhang Rui)
- Fix the int340X thermal driver's RAPL MMIO interface registration
error path (Rafael Wysocki)
- Fix possible use-after-free in the pasemi cpufreq driver (Wen
Yang)"
* tag 'pm-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
int340X/processor_thermal_device: Fix proc_thermal_rapl_remove()
powercap: Invoke powercap_init() and rapl_init() earlier
Four minor RISC-V-related changes for v5.3-rc2:
- Add support for the new clone3 syscall for RV64, relying on the
generic support
- Add DT data for the gigabit Ethernet controller on the SiFive FU540
and the HiFive Unleashed board
- Update MAINTAINERS to add me to the arch/riscv maintainers' list
- Add support for PCIe message-signaled interrupts by reusing the
generic header file
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Merge tag 'riscv/for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"Four minor RISC-V-related changes:
- Add support for the new clone3 syscall for RV64, relying on the
generic support
- Add DT data for the gigabit Ethernet controller on the SiFive FU540
and the HiFive Unleashed board
- Update MAINTAINERS to add me to the arch/riscv maintainers' list
- Add support for PCIe message-signaled interrupts by reusing the
generic header file"
* tag 'riscv/for-v5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: dts: Add DT node for SiFive FU540 Ethernet controller driver
riscv: include generic support for MSI irqdomains
MAINTAINERS: Add Paul as a RISC-V maintainer
riscv: enable sys_clone3 syscall for rv64
v4l2_ctrl_new_custom() should work for any kind of control, including
standard ones. With that change, we automatically get support for
menu controls.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The Hantro codec is typically used in platforms with an IOMMU,
so we need to set a proper DMA segment size. Devices without an
IOMMU will still fallback to default 64KiB segments.
Cc: stable@vger.kernel.org
Fixes: 775fec6900 ("media: add Rockchip VPU JPEG encoder driver")
Signed-off-by: Francois Buergisser <fbuergisser@chromium.org>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Merge tag 'ktest-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest fixlets from Steven Rostedt:
"This contains only simple spelling fixes"
* tag 'ktest-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Fix some typos in config-bisect.pl
fix below issue reported by coccicheck
/drivers/staging/media/hantro/hantro_vp8.c:149:16-34: WARNING:
dma_alloc_coherent use in aux_buf -> cpu already zeroes out memory, so
memset is not needed
Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Instead of using kmalloc + memcpy, use kmemdup
to simplify the code.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Admittedly, it's not easy to say what CONFIG_EMBEDDED really should be
doing, just as it's not easy to say what is "embedded".
In any case, the very description of MEDIA_SUBDRV_AUTOSELECT
specifies that embedded systems usually don't want
to enable this autoselect option.
Therefore, drop the default-yes, when the CONFIG_EMBEDDED is chosen.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Now that both Gen2 (video device centric) and Gen3 (media device
centric) modes of the driver have controls it is required to always
setup the controls when opening the devices. Remove the check which only
calls v4l2_ctrl_handler_setup() for Gen2 and call it unconditionally.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The R-Car VIN module supports V4L2_PIX_FMT_ARGB555 and
V4L2_PIX_FMT_ABGR32 pixel formats. Add the hardware register setup and
allow the alpha component to be changed while streaming using the
V4L2_CID_ALPHA_COMPONENT control.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix checkpatch warning for macro VNDMR_A8BIT]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
In preparation to adding support for RGB pixel formats with an alpha
component add a control to allow the user to control which alpha value
should be used.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The value have nothing to do with ARGB1555, it controls if the alpha
component should be filled in for ARGB1555 or ARGB888. Rename it to
reflect this.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Device nodes of type VFL_TYPE_SUBDEV have a 0 device_caps, so they
trigger this warning. Add a check against VFL_TYPE_SUBDEV.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 3c1350501c ("media: v4l2-dev/ioctl: require non-zero device_caps, verify sane querycap results")
Reported-by: Jan Kotas <jank@cadence.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The access() (and faccessat()) credentials change can cause an
unnecessary load on the RCU machinery because every access() call ends
up freeing the temporary access credential using RCU.
This isn't really noticeable on small machines, but if you have hundreds
of cores you can cause huge slowdowns due to RCU storms.
It's easy to avoid: the temporary access crededntials aren't actually
normally accessed using RCU at all, so we can avoid the whole issue by
just marking them as such.
* access-creds:
access: avoid the RCU grace period for the temporary subjective credentials
Drop use of the deprecated drmP.h header.
While touching the files divide include files in blocks
and sort the files alphabetically.
v2:
- Replace all uses of DRM_WAIT_ON() with VIA_WAIT_ON()
and thus avoiding to pull in drm_os_linux.h
v3:
- DRM_WAIT_ON replacement moved to earlier patch (Emil)
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Kevin Brace <kevinbrace@gmx.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: Mike Marshall <hubcap@omnibond.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Michel Dänzer <michel@daenzer.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-5-sam@ravnborg.org
Added include of header files to make via_drv.h self-contained.
v3:
- Reworded changelog a little - to reflect that more than one
header files are added
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Kevin Brace <kevinbrace@gmx.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: Mike Marshall <hubcap@omnibond.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Michel Dänzer <michel@daenzer.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-4-sam@ravnborg.org
VIA_WAIT_ON() is a direct copy of DRM_WAIT_ON() from
drm_os_linux.h.
The copy is made so we can avoid the dependency on the legacy header.
A more involved approach had been to introduce wait_event_* but for this
legacy driver the simpler and more safe approach with a copy of the
macro was selected.
Added the relevant header files for the functions used in VIA_WAIT_ON.
v3:
- Updated users of DRM_WAIT_ON => VIA_WAIT_ON (Emil)
- Updated $subject (Emil)
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Kevin Brace <kevinbrace@gmx.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: Mike Marshall <hubcap@omnibond.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Michel Dänzer <michel@daenzer.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-3-sam@ravnborg.org
Commit 06297d8cef ("btrfs: switch extent_buffer blocking_writers from
atomic to int") changed the type of blocking_writers but forgot to
adjust relevant code in btrfs_tree_unlock by converting the
smp_mb__after_atomic to smp_mb. This opened up the possibility of a
deadlock due to re-ordering of setting blocking_writers and
checking/waking up the waiter. This particular lockup is explained in a
comment above waitqueue_active() function.
Fix it by converting the memory barrier to a full smp_mb, accounting
for the fact that blocking_writers is a simple integer.
Fixes: 06297d8cef ("btrfs: switch extent_buffer blocking_writers from atomic to int")
Tested-by: Johannes Thumshirn <jthumshirn@suse.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The DRM_READ, DRM_WRITE macros comes from the deprecated drm_os_linux.h
header file. Remove their use to remove this dependency.
Replace the use of the macros with static inline variants.
v4:
- Use a more standard via_write8_mask() function (Emil)
v3:
- Use static inline functions, rather than macros (Emil)
- Use dedicated mask variants for byte access (Emil)
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Kevin Brace <kevinbrace@gmx.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Cc: Mike Marshall <hubcap@omnibond.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Michel Dänzer <michel@daenzer.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-2-sam@ravnborg.org
To make the code more readable, move the part of naming irq and request
irq out of eq table init into a separate function.
Link: https://lore.kernel.org/r/1562593285-8037-10-git-send-email-oulijun@huawei.com
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
The calculation of mhop for hem is duplicated in hns_roce_init_hem_table
and hns_roce_calc_hem_mhop, extracting it from them to a separate
function. Moreover, this patch refactors hns_roce_check_whether_mhop to
reduce complexity.
Link: https://lore.kernel.org/r/1562593285-8037-9-git-send-email-oulijun@huawei.com
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Move some code of the hns_roce_rereg_user_mr() function into an
independent function in oder to improve readability.
Link: https://lore.kernel.org/r/1562593285-8037-8-git-send-email-oulijun@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Move some lines for allocating multi-hop addressing into independent
functions in order to improve readability.
Link: https://lore.kernel.org/r/1562593285-8037-7-git-send-email-oulijun@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
