Commit graph

932,869 commits

Author SHA1 Message Date
Maxime Ripard
655c0f429f
ARM: sunxi: dts: Split USB PHY cells into an array
Even though it doesn't make any difference at the binary level, the reg
property is an array of cells, and should be represented as such.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:28 +01:00
Maxime Ripard
939b665434
ARM: dts: sun8i: tbs-a711: Fix typo in regulators
The regulator properties suffix is -supply, yet a _supply slipped in.

This was working because the regulator framework will provide a dummy
regulator when none is provided in the device tree, and the regulator
itself was always enabled.

Fixes: 90c5d7cdae ("ARM: dts: sun8i: a711: Add regulator support")
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:28 +01:00
Maxime Ripard
09f29dcc22
ARM: dts: sunxi: Fix the TCON output clock
Even though we shouldn't really have any external user of the clock
provided by the TCON, if clock-output-names is set, then #clock-cells must
be there as well.

Fix this.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:27 +01:00
Maxime Ripard
033914f877
ARM: sunxi: Fix the USB PHY VBUS detect GPIO properties
While the USB PHY Device Tree mandates that the name of the VBUS detect pin
should be usb0_vbus_det-gpios, a significant number of device tree use
usb0_vbus_det-gpio instead.

This was functional because the GPIO framework falls back to the gpio
suffix that is legacy, but we should fix this.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:27 +01:00
Maxime Ripard
2c515b0d05
ARM: sunxi: Fix the USB PHY ID detect GPIO properties
While the USB PHY Device Tree mandates that the name of the ID detect pin
should be usb0_id_det-gpios, a significant number of device tree use
usb0_id_det-gpio instead.

This was functional because the GPIO framework falls back to the gpio
suffix that is legacy, but we should fix this.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:27 +01:00
Maxime Ripard
0c64f75d89
ARM: dts: sunxi: Switch to new GPIOs properties for i2c-gpio
The i2c-gpio driver uses named gpios now and the array of GPIOs is
deprecated. Switch to the new binding.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:26 +01:00
Maxime Ripard
5400cdc141
ARM: dts: sunxi: Fix GIC compatible
As can be shown by the YAML schema now, the combination of GIC compatibles
we were using has never been an option.

Switch to the gic-400 variant, which is the more correct option.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:26 +01:00
Maxime Ripard
1cf0444a23
ARM: dts: sun5i: lichee-pi one: Remove stale pinctrl-names entry
Some nodes still have pinctrl-names entry, yet they don't have any pinctrl
group anymore. Drop them.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:26 +01:00
Maxime Ripard
c2a5b55475
ARM: dts: sun9i: optimus: Fix fixed-regulators
Commit 1848f3f444 ("ARM: dts: sun9i: Remove GPIO pinctrl nodes to avoid
warnings") was wrong on the optimus, and instead of droping the
pinctrl-names property, it dropped the regulator-name one.

Obviously, that wasn't what was intended. Reinstate regulator-name and drop
pinctrl-names.

Fixes: 1848f3f444 ("ARM: dts: sun9i: Remove GPIO pinctrl nodes to avoid warnings")
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:25 +01:00
Maxime Ripard
be354500c1
dt-bindings: arm: Remove the CPU compatible documentation
Commit 1f8afea8fee0 ("dt-bindings: Add YAML description for Allwinner
boards") added an exhaustive list of the valid compatibles used for both
the SoCs and boards.

We can therefore remove the old documentation, that never got as well
updated as it should have.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:25 +01:00
Maxime Ripard
ebc42b478b
ARM: dts: sun8i: a23/a33: Add R_I2C Controller
The A23 and A33 both have an I2C controller in the ARISC domain, that share
the same pins with the RSB bus.

Even if it's an unusual configuration, that device can be used to drive the
PMIC, so let's use it.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:25 +01:00
Maxime Ripard
4f6faf7864
ARM: dts: sun8i: a33: Add default address and size cells to the DSI node
The DSI bindings require that an address cell size of 1, and a size cell of
0. Instead of duplicating it in each and every board DTS file, let's put it
in the DTSI.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:25 +01:00
Maxime Ripard
7ee02cb56c
dt-bindings: Add YAML description for Allwinner boards
We've never had a board compatibles documentation for the Allwinner boards
so far.

Let's create a json-schema for them.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:24 +01:00
Maxime Ripard
927489b157
ARM: dts: sun9i: Add missing unit address
The soc node in the A80 DTSI has a ranges property, but no matching unit
address, which results in a DTC warning. Add the unit address to remove
that warning.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:24 +01:00
Maxime Ripard
c4953ba1ed
ARM: dts: sun9i: Fix Display Engine DTC warnings
Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:24 +01:00
Maxime Ripard
109b7bfa77
ARM: dts: sun8i: r40: Fix Display Engine DTC warnings
Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:24 +01:00
Maxime Ripard
56975bfbb7
ARM: dts: sun8i: a83t: Fix Display Engine DTC warnings
Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:23 +01:00
Maxime Ripard
f79d79534d
ARM: dts: sun8i: v3s: Fix Display Engine DTC warnings
Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:23 +01:00
Maxime Ripard
5bab80efb7
ARM: dts: sun8i: a23/a33: Fix Display Engine DTC warnings
Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:23 +01:00
Maxime Ripard
73b65f45bc
ARM: dts: sun6i: Fix Display Engine DTC warnings
Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:23 +01:00
Maxime Ripard
a873565695
ARM: dts: sun5i: Fix Display Engine DTC warnings
Our display engine endpoints trigger some DTC warnings due to the fact that
we're having a single endpoint that doesn't need any reg property, and
since we don't have a reg property, we don't need the address-cells and
size-cells properties anymore.

Fix those

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:23 +01:00
Maxime Ripard
9d803c1cf8
ARM: dts: sun5i: Fix display pipeline endpoint warnings in DTC
Since most of the display IPs have a single endpoint, having a reg
property, a unit-address and #address-cells and #size-cells will emit a
warning.

Let's remove those.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:22 +01:00
Maxime Ripard
67fec9db60
ARM: dts: sun8i: a83t: Add cross links for the mixers
Unlike what the binding for multiple pipeline documents, the A83t doesn't
have the cross links between the TCON and the mixers.

Let's add them.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:22 +01:00
Priit Laes
cd42ca0515
ARM: dts: sun7i: olimex-lime2: Add regulators for GPIO banks
Make sure that A20 Olimex Lime2 pin bank regulators are
properly represented.

While pin banks A, B and F are connected to 3.3V static
regulator, pin banks E and G tied with LDO3 and LDO4 regulators
with 2.8V reference.

Signed-off-by: Priit Laes <priit.laes@paf.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:22 +01:00
Mans Rullgard
ff8e860249
ARM: dts: sun7i: add /omit-if-no-ref/ tags to pin group nodes
Since only one alternative at a time is used, and some functions may not
be used at all, this cuts down the size of the board dtb files a bit.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:22 +01:00
Mans Rullgard
cfec64e8f2
ARM: dts: sun7i: add pinctrl for EMAC in PH bank
This adds pinctrl settings the EMAC using pins in the PH block.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:22 +01:00
Mans Rullgard
7a13e1820a
ARM: dts: sun7i: add pinctrl for CAN in PA bank
This adds pinctrl settings for the CAN controller using pins
PA16 and PA17.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:21 +01:00
Mans Rullgard
73b6700233
ARM: dts: sun7i: add pinctrl for missing uart mux options
This adds pinctrl settings for various missing uart options.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:26:21 +01:00
Dave Airlie
f144e67b0e Merge tag 'drm-intel-next-2019-03-20' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Report an error early instead of SIGBUS later when mmap beyond BO size

Core Changes:
- This includes backmerge of drm-next and two merges of Maarten's
  topic/hdr-formats

Driver Changes:
- Add Comet Lake (Gen9) PCI IDs to Coffee Lake ID list (Anusha)
- Add missing ICL PCI ID (Jose)
- Fix legacy gamma mode for ICL (Ville)
- Assume eDP is present on port A when there is no VBT (Thomas)
- Corrections to eDP training patterns (Jose)
- Fix PSR2 selective update corruption after PSR1 setup (Jose)
- Fix CRC mismatch error for DP link layer compliance (Aditya)
- Fix CNL DPLL readout and clean up code (Ville)
- Turn off the CUS when turning off a HDR plane (Ville)
- Avoid a race with execlist tasklet during race (Chris)
- Add missing CSC readout and clean up code (Ville)
- Avoid unnecessary wakeref during debugfs/drop_caches/set (Chris, Caz)
- Hold references to ring/HW context/context explicitly when used (Chris)

- Assume next platforms inherit old platform (Rodrigo)
- Use HWS indices rather than addresses for breadcrumbs (Chris)
- Add REG_BIT/REG_GENMASK and REG_FIELD_PREP macros (Jani)
- Convert crept in C99 types to kernel fixed size types (Jani)
- Avoid passing full dev_priv in forcewake functions (Daniele)
- Reset GuC on GPU reset (Sujaritha)
- Rework MG and Combo PLLs to vfuncs (Lucas)
- Explicitly track ppGTT size (Chris, Bob)
- Coding style improvements and code modularization (Ville)
- Selftest and debugging improvements (Chris)

Signed-off-by: Dave Airlie <airlied@redhat.com>

# Conflicts:
#	drivers/gpu/drm/i915/intel_hdmi.c
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190325124925.GA12726@jlahtine-desk.ger.corp.intel.com
2019-03-26 06:15:27 +10:00
Maxime Ripard
a4dc791974
ARM: dts: sun8i: h3: Refactor the pinctrl node names
The H3 and H5 have never been converted to the new convention we want to
have for the pinctrl nodes.

Convert them.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:05:42 +01:00
Maxime Ripard
75f9a05883
ARM: dts: sunxi: h3/h5: Remove stale pinctrl-names entry
Some nodes still have pinctrl-names entry, yet they don't have any pinctrl
group anymore. Drop them.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 21:01:38 +01:00
Maxime Ripard
54eac67bbe
arm64: dts: allwinner: Fix pinctrl node names
Some pinctrl node names for the A64 and H6 do not follow the convention
that we switched to and enforced, most notably by using underscores in node
names, which also trigger a DTC warning.

Let's change that.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 20:59:09 +01:00
Maxime Ripard
562bf19611
arm64: dts: allwinner: a64: Add missing PIO clocks
The pinctrl binding mandates that we have the three clocks fed into the PIO
described.

Even though the old case is still supported for backward compatibility, we
should update our DTs to fix this.

Fixes: 6bc37fac30 ("arm64: dts: add Allwinner A64 SoC .dtsi")
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 20:58:22 +01:00
Maxime Ripard
d41a43a0d3
arm64: dts: allwinner: a64: Fix display pipeline endpoints
Commit a7f7047ffc ("arm64: dts: allwinner: a64: Add cross links for the
mixers") introduced a few errors while fixing the cross links. Make sure to
correct them.

Fixes: a7f7047ffc ("arm64: dts: allwinner: a64: Add cross links for the mixers")
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 20:58:13 +01:00
Maxime Ripard
26c609d5d2
arm64: dts: allwinner: a64: Fix the TCON output clock
Even though we shouldn't really have any external user of the clock
provided by the TCON, if clock-output-names is set, then #clock-cells must
be there as well.

Fix this.

Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-25 20:48:06 +01:00
Roman Penyaev
9bf7933fc3 io_uring: offload write to async worker in case of -EAGAIN
In case of direct write -EAGAIN will be returned if page cache was
previously populated.  To avoid immediate completion of a request
with -EAGAIN error write has to be offloaded to the async worker,
like io_read() does.

Signed-off-by: Roman Penyaev <rpenyaev@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-03-25 13:13:21 -06:00
Ming Lei
e6d1fa584e sbitmap: order READ/WRITE freed instance and setting clear bit
Inside sbitmap_queue_clear(), once the clear bit is set, it will be
visiable to allocation path immediately. Meantime READ/WRITE on old
associated instance(such as request in case of blk-mq) may be
out-of-order with the setting clear bit, so race with re-allocation
may be triggered.

Adds one memory barrier for ordering READ/WRITE of the freed associated
instance with setting clear bit for avoiding race with re-allocation.

The following kernel oops triggerd by block/006 on aarch64 may be fixed:

[  142.330954] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000330
[  142.338794] Mem abort info:
[  142.341554]   ESR = 0x96000005
[  142.344632]   Exception class = DABT (current EL), IL = 32 bits
[  142.350500]   SET = 0, FnV = 0
[  142.353544]   EA = 0, S1PTW = 0
[  142.356678] Data abort info:
[  142.359528]   ISV = 0, ISS = 0x00000005
[  142.363343]   CM = 0, WnR = 0
[  142.366305] user pgtable: 64k pages, 48-bit VAs, pgdp = 000000002a3c51c0
[  142.372983] [0000000000000330] pgd=0000000000000000, pud=0000000000000000
[  142.379777] Internal error: Oops: 96000005 [#1] SMP
[  142.384613] Modules linked in: null_blk ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp vfat fat rpcrdma sunrpc rdma_ucm ib_iser rdma_cm iw_cm libiscsi ib_umad scsi_transport_iscsi ib_ipoib ib_cm mlx5_ib ib_uverbs ib_core sbsa_gwdt crct10dif_ce ghash_ce ipmi_ssif sha2_ce ipmi_devintf sha256_arm64 sg sha1_ce ipmi_msghandler ip_tables xfs libcrc32c mlx5_core sdhci_acpi mlxfw ahci_platform at803x sdhci libahci_platform qcom_emac mmc_core hdma hdma_mgmt i2c_dev [last unloaded: null_blk]
[  142.429753] CPU: 7 PID: 1983 Comm: fio Not tainted 5.0.0.cki #2
[  142.449458] pstate: 00400005 (nzcv daif +PAN -UAO)
[  142.454239] pc : __blk_mq_free_request+0x4c/0xa8
[  142.458830] lr : blk_mq_free_request+0xec/0x118
[  142.463344] sp : ffff00003360f6a0
[  142.466646] x29: ffff00003360f6a0 x28: ffff000010e70000
[  142.471941] x27: ffff801729a50048 x26: 0000000000010000
[  142.477232] x25: ffff00003360f954 x24: ffff7bdfff021440
[  142.482529] x23: 0000000000000000 x22: 00000000ffffffff
[  142.487830] x21: ffff801729810000 x20: 0000000000000000
[  142.493123] x19: ffff801729a50000 x18: 0000000000000000
[  142.498413] x17: 0000000000000000 x16: 0000000000000001
[  142.503709] x15: 00000000000000ff x14: ffff7fe000000000
[  142.509003] x13: ffff8017dcde09a0 x12: 0000000000000000
[  142.514308] x11: 0000000000000001 x10: 0000000000000008
[  142.519597] x9 : ffff8017dcde09a0 x8 : 0000000000002000
[  142.524889] x7 : ffff8017dcde0a00 x6 : 000000015388f9be
[  142.530187] x5 : 0000000000000001 x4 : 0000000000000000
[  142.535478] x3 : 0000000000000000 x2 : 0000000000000000
[  142.540777] x1 : 0000000000000001 x0 : ffff00001041b194
[  142.546071] Process fio (pid: 1983, stack limit = 0x000000006460a0ea)
[  142.552500] Call trace:
[  142.554926]  __blk_mq_free_request+0x4c/0xa8
[  142.559181]  blk_mq_free_request+0xec/0x118
[  142.563352]  blk_mq_end_request+0xfc/0x120
[  142.567444]  end_cmd+0x3c/0xa8 [null_blk]
[  142.571434]  null_complete_rq+0x20/0x30 [null_blk]
[  142.576194]  blk_mq_complete_request+0x108/0x148
[  142.580797]  null_handle_cmd+0x1d4/0x718 [null_blk]
[  142.585662]  null_queue_rq+0x60/0xa8 [null_blk]
[  142.590171]  blk_mq_try_issue_directly+0x148/0x280
[  142.594949]  blk_mq_try_issue_list_directly+0x9c/0x108
[  142.600064]  blk_mq_sched_insert_requests+0xb0/0xd0
[  142.604926]  blk_mq_flush_plug_list+0x16c/0x2a0
[  142.609441]  blk_flush_plug_list+0xec/0x118
[  142.613608]  blk_finish_plug+0x3c/0x4c
[  142.617348]  blkdev_direct_IO+0x3b4/0x428
[  142.621336]  generic_file_read_iter+0x84/0x180
[  142.625761]  blkdev_read_iter+0x50/0x78
[  142.629579]  aio_read.isra.6+0xf8/0x190
[  142.633409]  __io_submit_one.isra.8+0x148/0x738
[  142.637912]  io_submit_one.isra.9+0x88/0xb8
[  142.642078]  __arm64_sys_io_submit+0xe0/0x238
[  142.646428]  el0_svc_handler+0xa0/0x128
[  142.650238]  el0_svc+0x8/0xc
[  142.653104] Code: b9402a63 f9000a7f 3100047f 540000a0 (f9419a81)
[  142.659202] ---[ end trace 467586bc175eb09d ]---

Fixes: ea86ea2cdc ("sbitmap: ammortize cost of clearing bits")
Reported-and-bisected_and_tested-by: Yi Zhang <yi.zhang@redhat.com>
Cc: Yi Zhang <yi.zhang@redhat.com>
Cc: "jianchao.wang" <jianchao.w.wang@oracle.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-03-25 13:05:47 -06:00
Jens Axboe
e861857545 blk-mq: fix sbitmap ws_active for shared tags
We now wrap sbitmap waitqueues in an active counter, so we can avoid
iterating wakeups unless we have waiters there. This works as long as
everyone that's manipulating the waitqueues use the proper helpers. For
the tag wait case for shared tags, however, we add ourselves to the
waitqueue without incrementing/decrementing the ->ws_active count. This
means that wakeups can take a long time to happen.

Fix this by manually doing the inc/dec as needed for the wait queue
handling.

Reported-by: Michael Leun <kbug@newton.leun.net>
Tested-by: Michael Leun <kbug@newton.leun.net>
Cc: stable@vger.kernel.org
Reviewed-by: Omar Sandoval <osandov@fb.com>
Fixes: 5d2ee7122c ("sbitmap: optimize wakeup check")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-03-25 13:05:47 -06:00
Matthew Wilcox
f254ba6ae5 cxgb4: Convert hwtid_idr to XArray
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-25 15:42:12 -03:00
Mauro Carvalho Chehab
153d11cc53 media: imx214: don't de-reference a NULL pointer
As warned by smatch:
	drivers/media/i2c/imx214.c:591 imx214_set_format() warn: variable dereferenced before check 'format' (see line 589)

It turns that the code at imx214_set_format() has support for being
called with the format being NULL. I've no idea why, as it is only
called internally with the pointer set, and via subdev API (with
should also set it).

Also, the entire logic there depends on having format != NULL, so
just remove the bogus broken support for a null format.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Ricardo Ribalda Delgado <ricardo@ribalda.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 14:40:56 -04:00
Matthew Wilcox
7a268a9397 cxgb4: Convert mmidr to XArray
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-25 15:40:37 -03:00
Matthew Wilcox
2f43129127 cxgb4: Convert qpidr to XArray
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-25 15:39:18 -03:00
Matthew Wilcox
52e124c27e cxgb4: Convert cqidr to XArray
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-25 15:38:18 -03:00
Matthew Wilcox
e64a7c02f1 cxgb3: Convert mmidr to XArray
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-25 15:36:29 -03:00
Matthew Wilcox
27114876ce cxgb3: Convert qpidr to XArray
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-25 15:35:08 -03:00
Matthew Wilcox
a2f409713e cxgb3: Convert cqidr to XArray
It would make sense to convert this to an allocating XArray and remove the
kfifo that is currently used to allocate the CQID, but that work is better
done by someone who has the hardware to test with.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-25 15:34:22 -03:00
Laurent Pinchart
149e31e90b media: v4l: rcar_fdp1: Fix indentation oddities
Indentation is odd in several places, especially when printing messages
to the kernel log. Fix it to match the usual coding style.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 14:14:56 -04:00
Dafna Hirschfeld
35e2e8b5fb media: vicodec: set pixelformat to V4L2_PIX_FMT_FWHT_STATELESS for stateless decoder
for stateless decoder, set the output pixelformat
to V4L2_PIX_FMT_FWHT_STATELESS and the pix info to
pixfmt_stateless_fwht

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 14:13:32 -04:00
Dafna Hirschfeld
997deb811b media: vicodec: Add support for stateless decoder.
Implement a stateless decoder for the new node.

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: add 'return 0;' before default case in vicodec_try_ctrl()]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 14:12:59 -04:00
Dafna Hirschfeld
fde649b418 media: vicodec: Register another node for stateless decoder
Add stateless decoder instance field to the dev struct and
register another node for the statelsess decoder.
The stateless API for the node will be implemented in further patches.

Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix typo: videdev-stateless-dec -> stateless-decoder]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-25 14:11:47 -04:00