Add the capability to query information from a submit queue.
The first available parameter is for querying the number of GPU faults
(hangs) that can be attributed to the queue.

This is useful for implementing context robustness. A user context can
regularly query the number of faults to see if it is responsible for any
and if so it can invalidate itself.

This is also helpful for testing by confirming to the user  driver if a
particular command stream caused a fault (or not as the case may be).
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

For KHR_robustness, userspace wants to know two things, the count of GPU
faults globally, and the count of faults attributed to a given context.
This patch providees the former, and the next patch provides the latter.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>

For now it always returns '0' (false), but once the iommu work is in
place to enable per-process pagetables we can update the value returned.

Userspace needs to know this to make an informed decision about exposing
KHR_robustness.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>

The call to of_get_child_by_name returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.

Detected by coccinelle with the following warnings:
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:57:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 47, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:66:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 47, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:118:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 47, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:57:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 51, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:66:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 51, but without a corresponding object release within this function.
drivers/gpu/drm/msm/adreno/a5xx_gpu.c:118:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 51, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Mamta Shukla <mamtashukla555@gmail.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Sharat Masetty <smasetty@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: freedreno@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org (open list)
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>

The patch ("OPP: Add support for parsing the 'opp-level' property")
adds an API enabling a cleaner way to read the opp-level.  Let's use
the new API.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>

Removing unwanted access of crtc_state for finding this information.
Use split role information to know whether we have slave ctl.
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-8-git-send-email-jsanka@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

Iterate and assign HW intf block to physical encoders
in encoder modeset. Moving all the HW block assignments
to encoder modeset to allow easy switching to state
based resource management.
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-7-git-send-email-jsanka@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

After resource allocation, iterate and populate mixer/ctl
hw blocks in encoder modeset thereby centralizing all
the resource mapping to the CRTC. This change is made
for easy switching to state based allocation using
private objects later in this series.
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-6-git-send-email-jsanka@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

encoder->crtc is not really meaningful for atomic path. Use
crtc->encoder_mask to identify the crtc attached with
an encoder.
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-5-git-send-email-jsanka@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

release resources allocated in mode_set if any of
the hw check fails. Most of these checks are not
necessary and they will be removed in the follow up
patches with state based resource allocations.
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-4-git-send-email-jsanka@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

Not holding any video encoder specific data. Get rid of it.
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-3-git-send-email-jsanka@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

Both video and command physical encoders will have
a hw interface assigned to it. So there is really no
need to track the hw block in specific encoder subclass.
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1550107156-17625-2-git-send-email-jsanka@codeaurora.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

The frame_busy mask is used in frame_done event handling, which is not
invoked for async commits. So an async commit will leave the
frame_busy mask populated after it completes and future commits will start
with the busy mask incorrect.

This showed up on disable after cursor move. I was hitting the "this should
not happen" comment in the frame event worker since frame_busy was set,
we queued the event, but there were no frames pending (since async
also doesn't set that).
Reviewed-by: Fritz Koenig <frkoenig@google.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190130163220.138637-1-sean@poorly.runSigned-off-by: Rob Clark <robdclark@chromium.org>

In the case of an async/cursor update, we don't wait for the frame_done
event, which means handle_frame_done is never called, and the frame_done
watchdog isn't canceled. Currently, this results in a frame_done timeout
every time the cursor moves without a synchronous frame following it up
before the timeout expires. Since we don't wait for frame_done, and
don't handle it, we shouldn't modify the watchdog.
Reviewed-by: Fritz Koenig <frkoenig@google.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-4-sean@poorly.runSigned-off-by: Rob Clark <robdclark@chromium.org>

There exists a bunch of confusion as to what the actual units of
frame_done is:

- The definition states it's in # of frames
- CRTC treats it like it's ms
- frame_done_timeout comment thinks it's Hz, but it stores ms
- frame_done timer is setup such that it _should_ be in frames, but the
  timeout is super long

So this patch tries to interpret what the driver really wants. I've
de-centralized the #define since the consumers are expecting different
units.

For crtc, we just use 60ms since that's what it was doing before.
Perhaps we could get fancy and scale with vrefresh, but that's for
another time.

For encoder, fix the comments and rename frame_done_timeout so it's
obvious what the units are. In practice, frame_done_timeout is really
just checked against 0 || !0, which I guess is why the units being wrong
didn't matter. I've also dropped the timeout from the previous 60 frames
to 5. That seems like more than enough time to give up on a frame, and
my guess is that no one intended for the timeout to _actually_ be 60
frames.
Reviewed-by: Fritz Koenig <frkoenig@google.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-3-sean@poorly.runSigned-off-by: Rob Clark <robdclark@chromium.org>

Instead of setting the timeout and then immediately reading it back
(along with the hand-rolled msecs_to_jiffies calculation), just
calculate it once and set it in both places at the same time.
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-2-sean@poorly.runSigned-off-by: Rob Clark <robdclark@chromium.org>

Use the drm_mode_vrefresh helper where we need refresh rate in case
vrefresh is empty.
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-1-sean@poorly.runSigned-off-by: Rob Clark <robdclark@chromium.org>

[    3.707412] Unable to handle kernel NULL pointer dereference at virtual address 0000009c
[    3.714511] pgd = (ptrval)
[    3.722742] [0000009c] *pgd=00000000
[    3.725238] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[    3.728968] Modules linked in:
[    3.734265] CPU: 3 PID: 112 Comm: kworker/3:2 Tainted: G        W         5.0.0-rc7-00183-g06a1c31df9eb #4
[    3.737142] Hardware name: Generic DT based system
[    3.746778] Workqueue: events deferred_probe_work_func
[    3.751542] PC is at msm_gem_map_vma+0x3c/0xac
[    3.756669] LR is at msm_gem_get_and_pin_iova+0xd8/0x134
[    3.761086] pc : [<c07d3b7c>]    lr : [<c07d14f8>]    psr: 60000013
[    3.766560] sp : ee297be8  ip : ed9ab1c0  fp : ed93b800
[    3.772546] r10: ee35e180  r9 : 00000000  r8 : ee297c80
[    3.777752] r7 : 00000000  r6 : 7c100000  r5 : 00000000  r4 : ee35e180
[    3.782968] r3 : 00000001  r2 : 00000003  r1 : ee35e180  r0 : 00000000
[    3.789562] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[    3.796079] Control: 10c5787d  Table: 2e3a806a  DAC: 00000051
[    3.803282] Process kworker/3:2 (pid: 112, stack limit = 0x(ptrval))
[    3.809006] Stack: (0xee297be8 to 0xee298000)
[    3.815445] 7be0:                   00000000 c1108c48 eda8c000 00000003 eda8c0fc c1108c48
[    3.819715] 7c00: eda8c000 00000003 eda8c0fc c07d14f8 00000001 c07d1100 7c100000 00000000
[    3.827873] 7c20: eda8c000 bb7ffb78 00000000 eda8c000 00000000 00000000 c0c8b1d4 ee3bfa00
[    3.836037] 7c40: ee3b9800 c07d1684 00000000 c1108c48 ee0d7810 ee3b9800 c0c8b1d4 c07d222c
[    3.844193] 7c60: ee3bfd84 ee297c80 00000000 c0b1d5b0 ee3bfc40 c07dcfd8 ee3bfd84 ee297c80
[    3.852357] 7c80: 0000006d ee3bfc40 ee0d7810 bb7ffb78 c0c8b1d4 00000000 ee3bfc40 c07ddb48
[    3.860516] 7ca0: 00002004 c0eba384 ee3bfc40 c079eba0 ee3bd040 ee3b9800 00000001 ed93b800
[    3.868673] 7cc0: ed9aa100 c07db7e8 ee3bf240 ed9a6500 00000001 ee3b9800 ee3bf2d4 c07a0a30
[    3.876834] 7ce0: ed93b800 7d100000 c1108c48 ee0d7610 ee3b9800 ed93b800 c1108c48 00000000
[    3.884991] 7d00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    3.893151] 7d20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bb7ffb78
[    3.901310] 7d40: c12113c4 ed93b800 ee3b9800 c1108c48 ee9eec10 00000000 ed93b800 7d100000
[    3.909472] 7d60: eff7b000 c07cf748 7d100000 00000000 c0e9a350 c0b1d5b0 c12113c4 c0961e40
[    3.917633] 7d80: c12113c4 40000113 eeff4bec c0ebe004 00000019 c0b1d230 ee9eeda8 60000113
[    3.925791] 7da0: ee35d300 ee9eeda8 c07ce260 bb7ffb78 c07ce260 ee35d2c0 00000028 00000002
[    3.933950] 7dc0: eeb76280 c118f884 ee0be640 c11c6128 c07ce260 c07ea4ac 00000000 c0962b48
[    3.942108] 7de0: c118f868 00000001 c0ebbc98 ee35d2c0 00000000 eeb76280 00000000 c118f87c
[    3.950270] 7e00: ee35d2c0 00000000 c11c63e0 c118f694 00000019 c07ea5d0 ee0d7810 00000000
[    3.958430] 7e20: c118f694 00000000 00000000 c07f2b0c c120f55c ee0d7810 c120f560 00000000
[    3.966590] 7e40: 00000000 c07f08c4 c07f0e8c ee0d7810 c11ba3d0 ee0d7810 c118f694 c07f0e8c
[    3.974748] 7e60: c1108c48 00000001 c0ebc3cc c11c63f8 c11ba3d0 c07f0c08 00000001 c07f2f8c
[    3.982908] 7e80: c118f694 00000000 ee297ed4 c07f0e8c c1108c48 00000001 c0ebc3cc c11c63f8
[    3.991068] 7ea0: c11ba3d0 c07ee8a0 c11ba3d0 ee82686c ee0baf38 bb7ffb78 ee0d7810 ee0d7810
[    3.999227] 7ec0: c1108c48 ee0d7844 c118faac c07f05b0 ee0d7810 ee0d7810 00000001 bb7ffb78
[    4.007389] 7ee0: ee0d7810 ee0d7810 c118fd18 c118faac c11c63e0 c07ef7d0 ee0d7810 c118fa90
[    4.015548] 7f00: c118fa90 c07efd68 c118fac8 ee27fe00 eefd9c80 eefdcd00 00000000 c118facc
[    4.023708] 7f20: 00000000 c033c038 eefd9c80 eefd9c80 00000008 ee27fe00 ee27fe14 eefd9c80
[    4.031866] 7f40: 00000008 c1103d00 eefd9c98 ee296000 eefd9c80 c033ce54 ee907eac c0b1d230
[    4.040026] 7f60: ee907eac eea24440 ee285000 00000000 ee296000 ee27fe00 c033ce24 eea2445c
[    4.048188] 7f80: ee907eac c0341db0 00000000 ee285000 c0341c8c 00000000 00000000 00000000
[    4.056346] 7fa0: 00000000 00000000 00000000 c03010e8 00000000 00000000 00000000 00000000
[    4.064505] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    4.072665] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[    4.080828] [<c07d3b7c>] (msm_gem_map_vma) from [<c07d14f8>] (msm_gem_get_and_pin_iova+0xd8/0x134)
[    4.088983] [<c07d14f8>] (msm_gem_get_and_pin_iova) from [<c07d1684>] (_msm_gem_kernel_new+0x38/0xac)
[    4.097839] [<c07d1684>] (_msm_gem_kernel_new) from [<c07d222c>] (msm_gem_kernel_new+0x24/0x2c)
[    4.107130] [<c07d222c>] (msm_gem_kernel_new) from [<c07dcfd8>] (dsi_tx_buf_alloc_6g+0x44/0x90)
[    4.115631] [<c07dcfd8>] (dsi_tx_buf_alloc_6g) from [<c07ddb48>] (msm_dsi_host_modeset_init+0x80/0x104)
[    4.124313] [<c07ddb48>] (msm_dsi_host_modeset_init) from [<c07db7e8>] (msm_dsi_modeset_init+0x34/0x1c0)
[    4.133691] [<c07db7e8>] (msm_dsi_modeset_init) from [<c07a0a30>] (mdp5_kms_init+0x764/0x7e0)
[    4.143409] [<c07a0a30>] (mdp5_kms_init) from [<c07cf748>] (msm_drm_bind+0x56c/0x740)
[    4.151824] [<c07cf748>] (msm_drm_bind) from [<c07ea4ac>] (try_to_bring_up_master+0x238/0x2b4)
[    4.159636] [<c07ea4ac>] (try_to_bring_up_master) from [<c07ea5d0>] (component_add+0xa8/0x170)
[    4.168146] [<c07ea5d0>] (component_add) from [<c07f2b0c>] (platform_drv_probe+0x48/0x9c)
[    4.176737] [<c07f2b0c>] (platform_drv_probe) from [<c07f08c4>] (really_probe+0x278/0x404)
[    4.184981] [<c07f08c4>] (really_probe) from [<c07f0c08>] (driver_probe_device+0x78/0x1c0)
[    4.193147] [<c07f0c08>] (driver_probe_device) from [<c07ee8a0>] (bus_for_each_drv+0x74/0xb8)
[    4.201389] [<c07ee8a0>] (bus_for_each_drv) from [<c07f05b0>] (__device_attach+0xd0/0x164)
[    4.209984] [<c07f05b0>] (__device_attach) from [<c07ef7d0>] (bus_probe_device+0x84/0x8c)
[    4.218143] [<c07ef7d0>] (bus_probe_device) from [<c07efd68>] (deferred_probe_work_func+0x48/0xc4)
[    4.226398] [<c07efd68>] (deferred_probe_work_func) from [<c033c038>] (process_one_work+0x204/0x574)
[    4.235254] [<c033c038>] (process_one_work) from [<c033ce54>] (worker_thread+0x30/0x560)
[    4.244534] [<c033ce54>] (worker_thread) from [<c0341db0>] (kthread+0x124/0x154)
[    4.252606] [<c0341db0>] (kthread) from [<c03010e8>] (ret_from_fork+0x14/0x2c)
[    4.259966] Exception stack(0xee297fb0 to 0xee297ff8)
[    4.266998] 7fa0:                                     00000000 00000000 00000000 00000000
[    4.272143] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    4.280297] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    4.288451] Code: e5813080 1a000013 e3a03001 e5c4307c (e590009c)
[    4.294933] ---[ end trace 18729cc2bca2b4b3 ]---
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>

Currently the IOMMU code calls pm_runtime_get/put on the GPU or display
device before doing a IOMMU operation. This was because usually the
IOMMU driver didn't do power control of its own and since the hardware
used the same clocks and power as the respective multimedia device it
was a easy way to make sure that the power was available.

Now two things have changed. First, the SMMU devices can do their own power
control and more important bringing up the a6xx GPU isn't as easy as
turning on some clocks. To bring the GPU up we need the GMU which itself
needs the IOMMU so we have a chicken and egg problem.

Luckily this is easily fixed by removing the pm_runtime calls from the
functions and letting the device link to the IOMMU device handle the magic.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>

The pages backing the GEM objects are kept pinned in place as
long as they are alive, so they must not be allocated from the
MOVABLE zone. Blocking page migration for too long will cause
the VM subsystem headaches and will outright break CMA, as a
few pinned pages in CMA will lead to failure to find the
required large contiguous regions.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>

Pull ARM SoC fixes from Olof Johansson:
 "A collection of fixes from the last few weeks. Most of them are
  smaller tweaks and fixes to DT and hardware descriptions for boards.
  Some of the more significant ones are:

   - eMMC and RGMII stability tweaks for rk3288

   - DDC fixes for Rock PI 4

   - Audio fixes for two TI am335x eval boards

   - D_CAN clock fix for am335x

   - Compilation fixes for clang

   - !HOTPLUG_CPU compilation fix for one of the new platforms this
     release (milbeaut)

   - A revert of a gpio fix for nomadik that instead was fixed in the
     gpio subsystem

   - Whitespace fix for the DT JSON schema (no tabs allowed)"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (25 commits)
  ARM: milbeaut: fix build with !CONFIG_HOTPLUG_CPU
  ARM: iop: don't use using 64-bit DMA masks
  ARM: orion: don't use using 64-bit DMA masks
  Revert "ARM: dts: nomadik: Fix polarity of SPI CS"
  dt-bindings: cpu: Fix JSON schema
  arm/mach-at91/pm : fix possible object reference leak
  ARM: dts: at91: Fix typo in ISC_D0 on PC9
  ARM: dts: Fix dcan clkctrl clock for am3
  reset: meson-audio-arb: Fix missing .owner setting of reset_controller_dev
  dt-bindings: reset: meson-g12a: Add missing USB2 PHY resets
  ARM: dts: rockchip: Remove #address/#size-cells from rk3288-veyron gpio-keys
  ARM: dts: rockchip: Remove #address/#size-cells from rk3288 mipi_dsi
  ARM: dts: rockchip: Fix gpu opp node names for rk3288
  ARM: dts: am335x-evmsk: Correct the regulators for the audio codec
  ARM: dts: am335x-evm: Correct the regulators for the audio codec
  ARM: OMAP2+: add missing of_node_put after of_device_is_available
  ARM: OMAP1: ams-delta: Fix broken GPIO ID allocation
  arm64: dts: stratix10: add the sysmgr-syscon property from the gmac's
  arm64: dts: rockchip: fix rk3328 sdmmc0 write errors
  arm64: dts: rockchip: fix rk3328 rgmii high tx error rate
  ...

Pull block fixes from Jens Axboe:

 - Fixups for the pf/pcd queue handling (YueHaibing)

 - Revert of the three direct issue changes as they have been proven to
   cause an issue with dm-mpath (Bart)

 - Plug rq_count reset fix (Dongli)

 - io_uring double free in fileset registration error handling (me)

 - Make null_blk handle bad numa node passed in (John)

 - BFQ ifdef fix (Konstantin)

 - Flush queue leak fix (Shenghui)

 - Plug trace fix (Yufen)

* tag 'for-linus-20190407' of git://git.kernel.dk/linux-block:
  xsysace: Fix error handling in ace_setup
  null_blk: prevent crash from bad home_node value
  block: Revert v5.0 blk_mq_request_issue_directly() changes
  paride/pcd: Fix potential NULL pointer dereference and mem leak
  blk-mq: do not reset plug->rq_count before the list is sorted
  paride/pf: Fix potential NULL pointer dereference
  io_uring: fix double free in case of fileset regitration failure
  blk-mq: add trace block plug and unplug for multiple queues
  block: use blk_free_flush_queue() to free hctx->fq in blk_mq_init_hctx
  block/bfq: fix ifdef for CONFIG_BFQ_GROUP_IOSCHED=y

When HOTPLUG_CPU is disabled, some fields in the smp operations
are not available or needed:

arch/arm/mach-milbeaut/platsmp.c:90:3: error: field designator 'cpu_die' does not refer to any field in type
      'struct smp_operations'
        .cpu_die                = m10v_cpu_die,
         ^
arch/arm/mach-milbeaut/platsmp.c:91:3: error: field designator 'cpu_kill' does not refer to any field in type
      'struct smp_operations'
        .cpu_kill               = m10v_cpu_kill,
         ^

Hide them in an #ifdef like the other platforms do.

Fixes: 9fb29c73 ("ARM: milbeaut: Add basic support for Milbeaut m10v SoC")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>

clang warns about statically defined DMA masks from the DMA_BIT_MASK
macro with length 64:

 arch/arm/mach-iop13xx/setup.c:303:35: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
 static u64 iop13xx_adma_dmamask = DMA_BIT_MASK(64);
                                  ^~~~~~~~~~~~~~~~
 include/linux/dma-mapping.h:141:54: note: expanded from macro 'DMA_BIT_MASK'
 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
                                                      ^ ~~~

The ones in iop shouldn't really be 64 bit masks, so changing them
to what the driver can support avoids the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>

clang warns about statically defined DMA masks from the DMA_BIT_MASK
macro with length 64:

arch/arm/plat-orion/common.c:625:29: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
                .coherent_dma_mask      = DMA_BIT_MASK(64),
                                          ^~~~~~~~~~~~~~~~
include/linux/dma-mapping.h:141:54: note: expanded from macro 'DMA_BIT_MASK'
 #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))

The ones in orion shouldn't really be 64 bit masks, so changing them
to what the driver can support avoids the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>

This reverts commit fa946356.

Per Linus Walleij:

Dear ARM SoC maintainers,

can you please revert this patch. It was the wrong solution to the
wrong problem, and I must have acted in stress. Andrey fixed the
real bug in a proper way in these commits:

commit e5545c94
"gpio: of: Check propname before applying "cs-gpios" quirks"
commit 7ce40277
"gpio: of: Check for "spi-cs-high" in child instead of parent node"
Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'omap-for-v5.1/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Fixes for omaps for v5.1-rc cycle

Few small fixes for omap variants:

- Fix ams-delta gpio IDs
- Add missing of_node_put for omapdss platform init code
- Fix unconfigured audio regulators for two am335x boards
- Fix use of wrong offset for am335x d_can clocks

* tag 'omap-for-v5.1/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Fix dcan clkctrl clock for am3
  ARM: dts: am335x-evmsk: Correct the regulators for the audio codec
  ARM: dts: am335x-evm: Correct the regulators for the audio codec
  ARM: OMAP2+: add missing of_node_put after of_device_is_available
  ARM: OMAP1: ams-delta: Fix broken GPIO ID allocation
Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'at91-5.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/fixes

AT91 fixes for 5.1

- fix a typo in sama5d2 pinmuxing which concerns the ISC data 0 signal
- fix a kobject reference leak

* tag 'at91-5.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  arm/mach-at91/pm : fix possible object reference leak
  ARM: dts: at91: Fix typo in ISC_D0 on PC9
Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'v5.1-rockchip-dtfixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes

Fixes for dtc warnings, fixes for ethernet transfers on rk3328,
sd-card related fixes on both rk3328 ans rk3288-tinker and a
regulator fix on rock64 and making ddc actually work on the
Rock PI 4 due to missing the ddc bus.

* tag 'v5.1-rockchip-dtfixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: Remove #address/#size-cells from rk3288-veyron gpio-keys
  ARM: dts: rockchip: Remove #address/#size-cells from rk3288 mipi_dsi
  ARM: dts: rockchip: Fix gpu opp node names for rk3288
  arm64: dts: rockchip: fix rk3328 sdmmc0 write errors
  arm64: dts: rockchip: fix rk3328 rgmii high tx error rate
  ARM: dts: rockchip: Fix SD card detection on rk3288-tinker
  arm64: dts: rockchip: Fix vcc_host1_5v GPIO polarity on rk3328-rock64
  ARM: dts: rockchip: fix rk3288 cpu opp node reference
  arm64: dts: rockchip: add DDC bus on Rock Pi 4
  arm64: dts: rockchip: fix rk3328-roc-cc gmac2io tx/rx_delay
Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'stratix10_fix_for_v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/fixes

arm64: dts: stratix10: fix emac loading warning
- Add missing "altr,sysmgr-syscon" property to all gmac nodes

* tag 'stratix10_fix_for_v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  arm64: dts: stratix10: add the sysmgr-syscon property from the gmac's
Signed-off-by: Olof Johansson <olof@lixom.net>

Reset controller fixes for v5.1

This tag adds missing USB PHY reset lines to the Meson G12A reset
controller header and fixes the Meson Audio ARB driver to prevent
module unloading while it is in use.

* tag 'reset-fixes-for-v5.1' of git://git.pengutronix.de/pza/linux:
  reset: meson-audio-arb: Fix missing .owner setting of reset_controller_dev
  dt-bindings: reset: meson-g12a: Add missing USB2 PHY resets
Signed-off-by: Olof Johansson <olof@lixom.net>

Commit fd73403a ("dt-bindings: arm: Add SMP enable-method for
Milbeaut") added support for a new cpu enable-method, but did so using
tabulations to ident. This is however invalid in the syntax, and resulted
in a failure when trying to use that schemas for validation.

Use spaces instead of tabs to indent to fix this.

Fixes: fd73403a ("dt-bindings: arm: Add SMP enable-method for Milbeaut")
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Sugaya Taichi <sugaya.taichi@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

Pull xen fixes from Juergen Gross:
 "One minor fix and a small cleanup for the xen privcmd driver"

* tag 'for-linus-5.1b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: Prevent buffer overflow in privcmd ioctl
  xen: use struct_size() helper in kzalloc()

Pull MTD fix from Richard Weinberger:
 "A single fix for a possible infinite loop in the cfi_cmdset_0002
  driver"

* tag 'mtd/fixes-for-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: cfi: fix deadloop in cfi_cmdset_0002.c do_write_buffer

Pull SCSI fixes from James Bottomley:
 "Five small fixes. Four in three drivers: qedi, lpfc and storvsc. The
  final one is labelled core, but merely adds a dh rdac entry for Lenovo
  systems"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: lpfc: Fix missing wakeups on abort threads
  scsi: storvsc: Reduce default ring buffer size to 128 Kbytes
  scsi: storvsc: Fix calculation of sub-channel count
  scsi: core: add new RDAC LENOVO/DE_Series device
  scsi: qedi: remove declaration of nvm_image from stack

Pull i2c fix from Wolfram Sang:
 "A simple but wanted driver bugfix"

* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: imx: don't leak the i2c adapter on error

Pull parisc fixes from Helge Deller:
 "A 32-bit boot regression fix introduced in the merge window, a QEMU
  detection fix and two fixes by Sven regarding ptrace & kprobes"

* 'parisc-5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Detect QEMU earlier in boot process
  parisc: also set iaoq_b in instruction_pointer_set()
  parisc: regs_return_value() should return gpr28
  Revert: parisc: Use F_EXTEND() macro in iosapic code

While adding LASI support to QEMU, I noticed that the QEMU detection in
the kernel happens much too late. For example, when a LASI chip is found
by the kernel, it registers the LASI LED driver as well.  But when we
run on QEMU it makes sense to avoid spending unnecessary CPU cycles, so
we need to access the running_on_QEMU flag earlier than before.

This patch now makes the QEMU detection the fist task of the Linux
kernel by moving it to where the kernel enters the C-coding.

Fixes: 310d8278 ("parisc: qemu idle sleep support")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.14+

When setting the instruction pointer on PA-RISC we also need
to set the back of the instruction queue to the new offset, otherwise
we will execute on instruction from the new location, and jumping
back to the old location stored in iaoq_b.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 75ebedf1 ("parisc: Add HAVE_REGS_AND_STACK_ACCESS_API feature")
Cc: stable@vger.kernel.org # 4.19+