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22 months agoMerge drm/drm-next into drm-misc-next-fixes
Thomas Zimmermann [Thu, 14 Jul 2022 07:57:37 +0000 (09:57 +0200)] 
Merge drm/drm-next into drm-misc-next-fixes

Backmerging from drm/drm-next for the final fixes that will go
into v5.20.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
22 months agoMerge tag 'topic/nouveau-misc-2022-07-13-1' of git://anongit.freedesktop.org/drm...
Dave Airlie [Wed, 13 Jul 2022 04:26:24 +0000 (14:26 +1000)] 
Merge tag 'topic/nouveau-misc-2022-07-13-1' of git://anongit.freedesktop.org/drm/drm into drm-next

drm/nouveau next misc

This is a set of misc nouveau patches skeggsb left queued up, just
flushing some of them out.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Dave Airlie <airlied@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAPM=9txSS9Pdagpi=3JJeFOGy6ALWC31WZdQxLBkfGeL3O+T1A@mail.gmail.com
22 months agoMerge tag 'exynos-drm-next-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel...
Dave Airlie [Wed, 13 Jul 2022 04:17:01 +0000 (14:17 +1000)] 
Merge tag 'exynos-drm-next-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Two cleanups
- Remove Joonyoung Shim from MAINTAINERS and relevant yaml files.
  He left from Samsung so his email address isn't valid anymore.

Fixup
- Fix resume function issue of exynos decon driver by calling
  clk_disable_unprepare() properly if clk_prepare_enable() failed.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220712061008.199961-1-inki.dae@samsung.com
22 months agodrm/nouveau/kms/nv50-: remove unused functions
Ben Skeggs [Wed, 1 Jun 2022 10:46:06 +0000 (20:46 +1000)] 
drm/nouveau/kms/nv50-: remove unused functions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/flcn: remove unused functions
Ben Skeggs [Wed, 1 Jun 2022 10:46:05 +0000 (20:46 +1000)] 
drm/nouveau/flcn: remove unused functions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau: remove double WFI when destroying channels
Ben Skeggs [Wed, 1 Jun 2022 10:46:05 +0000 (20:46 +1000)] 
drm/nouveau: remove double WFI when destroying channels

This is particularly irritating when the channel has hung.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/ce/gv100-: move method buffer to ce ctx
Ben Skeggs [Wed, 1 Jun 2022 10:46:04 +0000 (20:46 +1000)] 
drm/nouveau/ce/gv100-: move method buffer to ce ctx

Didn't really know what this buffer was when initially implemented,
but these days we do, so move it somewhere more appropriate.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/fifo: remove rd32/wr32 accessors from channels
Ben Skeggs [Wed, 1 Jun 2022 10:46:04 +0000 (20:46 +1000)] 
drm/nouveau/fifo: remove rd32/wr32 accessors from channels

No need for these, we always map USERD to the client.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/fifo: rip out cevent, never used
Ben Skeggs [Wed, 1 Jun 2022 10:46:03 +0000 (20:46 +1000)] 
drm/nouveau/fifo: rip out cevent, never used

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/device: remove pwrsrc notify in favour of a direct call to clk
Ben Skeggs [Wed, 1 Jun 2022 10:46:03 +0000 (20:46 +1000)] 
drm/nouveau/device: remove pwrsrc notify in favour of a direct call to clk

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/nvkm: remove unused header
Ben Skeggs [Wed, 1 Jun 2022 10:46:02 +0000 (20:46 +1000)] 
drm/nouveau/nvkm: remove unused header

Left-over from secboot->acr transition.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/nvkm: zero out engine pointer for subdev-provided classes
Ben Skeggs [Wed, 1 Jun 2022 10:46:02 +0000 (20:46 +1000)] 
drm/nouveau/nvkm: zero out engine pointer for subdev-provided classes

Doesn't fix any known issue, but noticed fifo being initialised in
logs in response to mmu allocation.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/nvkm: use list_add_tail() when building object tree
Ben Skeggs [Wed, 1 Jun 2022 10:46:02 +0000 (20:46 +1000)] 
drm/nouveau/nvkm: use list_add_tail() when building object tree

Fixes resume from hibernate failing on (at least) TU102, where cursor
channel init failed due to being performed before the core channel.

Not solid idea why suspend-to-ram worked, but, presumably HW being in
an entirely clean state has something to do with it.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/nvkm: rip out event uapi
Ben Skeggs [Wed, 1 Jun 2022 10:46:01 +0000 (20:46 +1000)] 
drm/nouveau/nvkm: rip out event uapi

Userspace never ended up using this to be clever about dealing with
channel death, and it won't be, not like this anyway.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agodrm/nouveau/nvif: add wrapper for open-coded nvif_object_constructed()
Ben Skeggs [Wed, 1 Jun 2022 10:46:00 +0000 (20:46 +1000)] 
drm/nouveau/nvif: add wrapper for open-coded nvif_object_constructed()

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agoMerge tag 'drm-msm-next-2022-07-10' of https://gitlab.freedesktop.org/drm/msm into...
Dave Airlie [Wed, 13 Jul 2022 00:55:52 +0000 (10:55 +1000)] 
Merge tag 'drm-msm-next-2022-07-10' of https://gitlab.freedesktop.org/drm/msm into drm-next

Next for v5.20

GPU:
- a619 support
- Fix for unclocked GMU register access
- Devcore dump enhancements

Core:

- client utilization via fdinfo support
- fix fence rollover issue
- gem: Lockdep false-positive warning fix
- gem: Switch to pfn mappings

DPU:

- constification of HW catalog
- support for using encoder as CRC source
- WB support on sc7180
- WB resolution fixes

DP:

- dropped custom bulk clock implementation
- made dp_bridge_mode_valid() return MODE_CLOCK_HIGH where applicable
- fix link retraining on resolution change

MDP5:

- MSM8953 perf data

HDMI:

- YAML'ification of schema
- dropped obsolete GPIO support
- misc cleanups

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGtuqswBGPw-kCYzJvckK2RR1XTeUEgaXwVG_mvpbv3gPA@mail.gmail.com
22 months agoBackmerge tag 'v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds...
Dave Airlie [Wed, 13 Jul 2022 00:54:56 +0000 (10:54 +1000)] 
Backmerge tag 'v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next

Backmerge in rc6 so I can merge msm next easier.

Linux 5.19-rc6

Signed-off-by: Dave Airlie <airlied@redhat.com>
22 months agoMerge tag 'mediatek-drm-next-5.20' of https://git.kernel.org/pub/scm/linux/kernel...
Dave Airlie [Tue, 12 Jul 2022 06:54:19 +0000 (16:54 +1000)] 
Merge tag 'mediatek-drm-next-5.20' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-next

Mediatek DRM Next for Linux 5.20

1. Add Mediatek Soc DRM (vdosys0) support for mt8195
2. Cooperate with DSI RX devices to modify dsi funcs and delay mipi high to cooperate with panel sequence
3. Add mt8186 dsi compatible and convert dsi_dtbinding to .yaml
4. Add MediaTek SoC DRM (vdosys1) support for mt8195
5. Add MT8195 dp_intf driver

Signed-off-by: Dave Airlie <airlied@redhat.com>
[airlied: fix drm_edid.h include]
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220709142021.24260-1-chunkuang.hu@kernel.org
22 months agoMerge tag 'drm/tegra/for-5.20-rc1' of https://gitlab.freedesktop.org/drm/tegra into...
Dave Airlie [Tue, 12 Jul 2022 05:50:41 +0000 (15:50 +1000)] 
Merge tag 'drm/tegra/for-5.20-rc1' of https://gitlab.freedesktop.org/drm/tegra into drm-next

drm/tegra: Changes for v5.20-rc1

The bulk of these changes adds support for context isolation for the
various supported host1x engines, as well as support for the hardware
found on the new Tegra234 SoC generation.

There's also a couple of fixes and cleanups. To round things off, the
device tree bindings are converted to the new json-schema format that
allows DTBs to be validated.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220708181136.673789-1-thierry.reding@gmail.com
22 months agodrm/exynos/exynos7_drm_decon: free resources when clk_set_parent() failed.
Jian Zhang [Tue, 12 Jul 2022 04:56:11 +0000 (13:56 +0900)] 
drm/exynos/exynos7_drm_decon: free resources when clk_set_parent() failed.

In exynos7_decon_resume, When it fails, we must use clk_disable_unprepare()
to free resource that have been used.

Fixes: 6f83d20838c09 ("drm/exynos: use DRM_DEV_ERROR to print out error
message")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jian Zhang <zhangjian210@huawei.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
22 months agodt-bindings: remove Joonyoung Shim from maintainers
Krzysztof Kozlowski [Fri, 1 Jul 2022 00:31:23 +0000 (09:31 +0900)] 
dt-bindings: remove Joonyoung Shim from maintainers

Emails to Joonyoung Shim bounce ("550 5.1.1 Recipient address rejected:
User unknown"), so remove him from maintainers of DT bindings (display,
phy).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
22 months agodrm/exynos: MAINTAINERS: move Joonyoung Shim to credits
Krzysztof Kozlowski [Thu, 30 Jun 2022 04:12:17 +0000 (13:12 +0900)] 
drm/exynos: MAINTAINERS: move Joonyoung Shim to credits

Emails to Joonyoung Shim bounce ("550 5.1.1 Recipient address rejected:
User unknown"), so move him to credits file.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
22 months agoMerge tag 'drm-misc-next-2022-07-07' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Tue, 12 Jul 2022 03:27:47 +0000 (13:27 +1000)] 
Merge tag 'drm-misc-next-2022-07-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for $kernel-version:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:

 * crtc: Remove unnessary include statements from drm_crtc.h, plus
   fallout in drivers

 * edid: More use of struct drm_edid; implement HF-EEODB extension

Driver Changes:

 * bridge:
   * anx7625: Implement HDP timeout via callback; Cleanups
   * fsl-ldb: Drop DE flip; Modesetting fixes
   * imx: Depend on ARCH_MXC
   * sil8620: Fix off-by-one
   * ti-sn65dsi86: Convert to atomic modesetting

 * ingenic: Fix display at maximum resolution

 * panel:
   * simple: Add support for HannStar HSD101PWW2, plus DT bindings; Add
     support for ETML0700Y5DHA, plus DT bindings

 * rockchip: Fixes

 * vc4: Cleanups

 * vmwgfx: Cleanups

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YsaHq1pvE699NtOM@linux-uq9g
22 months agoMerge tag 'drm-intel-next-2022-07-06' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Tue, 12 Jul 2022 02:54:42 +0000 (12:54 +1000)] 
Merge tag 'drm-intel-next-2022-07-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- Suspend fixes for Display (Jose)
- Properly block D3Cold for now (Anshuman)
- Eliminate PIPECONF RMWs from .color_commit()(Ville)
- Display info clean-up (Ville)
- Fix error code (Dan)
- Fix possible refcount leak on DP MST (Hangyu)
- Other general display clean-ups (Jani, Tom)
- Add bios debug logs (Jani)
- PCH type clean-up (Ville)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YsZNJUVh0iHOtORz@intel.com
22 months agoMerge tag 'amd-drm-next-5.20-2022-07-05' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Tue, 12 Jul 2022 01:07:30 +0000 (11:07 +1000)] 
Merge tag 'amd-drm-next-5.20-2022-07-05' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-5.20-2022-07-05:

amdgpu:
- Various spelling and grammer fixes
- Various eDP fixes
- Various DMCUB fixes
- VCN fixes
- GMC 11 fixes
- RAS fixes
- TMZ support for GC 10.3.7
- GPUVM TLB flush fixes
- SMU 13.0.x updates
- DCN 3.2 Support
- DCN 3.2.1 Support
- MES updates
- GFX11 modifiers support
- USB-C fixes
- MMHUB 3.0.1 support
- SDMA 6.0 doorbell fixes
- Initial devcoredump support
- Enable high priority gfx queue on asics which support it
- Enable GPU reset for SMU 13.0.4
- OLED display fixes
- MPO fixes
- DC frame size fixes
- ASPM support for PCIE 7.4/7.6
- GPU reset support for SMU 13.0.0
- GFX11 updates
- VCN JPEG fix
- BACO support for SMU 13.0.7
- VCN instance handling fix
- GFX8 GPUVM TLB flush fix
- GPU reset rework
- VCN 4.0.2 support
- GTT size fixes
- DP link training fixes
- LSDMA 6.0.1 support
- Various backlight fixes
- Color encoding fixes
- Backlight config cleanup
- VCN 4.x unified queue cleanup

amdkfd:
- MMU notifier fixes
- Updates for GC 10.3.6 and 10.3.7
- P2P DMA support using dma-buf
- Add available memory IOCTL
- SDMA 6.0.1 fix
- MES fixes
- HMM profiler support

radeon:
- License fix
- Backlight config cleanup

UAPI:
- Add available memory IOCTL to amdkfd
  Proposed userspace: https://www.mail-archive.com/amd-gfx@lists.freedesktop.org/msg75743.html
- HMM profiler support for amdkfd
  Proposed userspace: https://lists.freedesktop.org/archives/amd-gfx/2022-June/080805.html

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220705212633.6037-1-alexander.deucher@amd.com
22 months agoLinux 5.19-rc6
Linus Torvalds [Sun, 10 Jul 2022 21:40:51 +0000 (14:40 -0700)] 
Linux 5.19-rc6

22 months agoMerge branch 'hot-fixes' (fixes for rc6)
Linus Torvalds [Sun, 10 Jul 2022 21:26:49 +0000 (14:26 -0700)] 
Merge branch 'hot-fixes' (fixes for rc6)

This is a collection of three fixes for small annoyances.

Two of these are already pending in other trees, but I really don't want
to release another -rc with these issues pending, so I picked up the
patches for these things directly.  We'll end up with duplicate commits
eventually, I prefer that over having these issues pending.

The third one is just me getting rid of another BUG_ON() just because it
was reported and I dislike those things so much.

* merge 'hot-fixes' branch:
  ida: don't use BUG_ON() for debugging
  drm/aperture: Run fbdev removal before internal helpers
  ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()

22 months agoida: don't use BUG_ON() for debugging
Linus Torvalds [Sun, 10 Jul 2022 20:55:49 +0000 (13:55 -0700)] 
ida: don't use BUG_ON() for debugging

This is another old BUG_ON() that just shouldn't exist (see also commit
a382f8fee42c: "signal handling: don't use BUG_ON() for debugging").

In fact, as Matthew Wilcox points out, this condition shouldn't really
even result in a warning, since a negative id allocation result is just
a normal allocation failure:

  "I wonder if we should even warn here -- sure, the caller is trying to
   free something that wasn't allocated, but we don't warn for
   kfree(NULL)"

and goes on to point out how that current error check is only causing
people to unnecessarily do their own index range checking before freeing
it.

This was noted by Itay Iellin, because the bluetooth HCI socket cookie
code does *not* do that range checking, and ends up just freeing the
error case too, triggering the BUG_ON().

The HCI code requires CAP_NET_RAW, and seems to just result in an ugly
splat, but there really is no reason to BUG_ON() here, and we have
generally striven for allocation models where it's always ok to just do

    free(alloc());

even if the allocation were to fail for some random reason (usually
obviously that "random" reason being some resource limit).

Fixes: 88eca0207cf1 ("ida: simplified functions for id allocation")
Reported-by: Itay Iellin <ieitayie@gmail.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
22 months agoMerge tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul...
Linus Torvalds [Sun, 10 Jul 2022 18:23:01 +0000 (11:23 -0700)] 
Merge tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine fixes from Vinod Koul:
 "One core fix for DMA_INTERRUPT and rest driver fixes.

  Core:

   - Revert verification of DMA_INTERRUPT capability as that was
     incorrect

  Bunch of driver fixes for:

   - ti: refcount and put_device leak

   - qcom_bam: runtime pm overflow

   - idxd: force wq context cleanup and call idxd_enable_system_pasid()
     on success

   - dw-axi-dmac: RMW on channel suspend register

   - imx-sdma: restart cyclic channel when enabled

   - at_xdma: error handling for at_xdmac_alloc_desc

   - pl330: lockdep warning

   - lgm: error handling path in probe

   - allwinner: Fix min/max typo in binding"

* tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
  dt-bindings: dma: allwinner,sun50i-a64-dma: Fix min/max typo
  dmaengine: lgm: Fix an error handling path in intel_ldma_probe()
  dmaengine: pl330: Fix lockdep warning about non-static key
  dmaengine: idxd: Only call idxd_enable_system_pasid() if succeeded in enabling SVA feature
  dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
  dmaengine: imx-sdma: only restart cyclic channel when enabled
  dmaengine: dw-axi-dmac: Fix RMW on channel suspend register
  dmaengine: idxd: force wq context cleanup on device disable path
  dmaengine: qcom: bam_dma: fix runtime PM underflow
  dmaengine: imx-sdma: Allow imx8m for imx7 FW revs
  dmaengine: Revert "dmaengine: add verification of DMA_INTERRUPT capability for dmatest"
  dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
  dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate

22 months agoMerge tag 'staging-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 10 Jul 2022 16:51:56 +0000 (09:51 -0700)] 
Merge tag 'staging-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fix from Greg KH:
 "Here is a single staging driver fix for a reported problem that showed
  up in 5.19-rc1 in the wlan-ng driver. It has been in linux-next for a
  week with no reported problems"

* tag 'staging-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging/wlan-ng: get the correct struct hfa384x in work callback

22 months agoMerge tag 'char-misc-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sun, 10 Jul 2022 16:45:29 +0000 (09:45 -0700)] 
Merge tag 'char-misc-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are four small char/misc driver fixes for 5.19-rc6 to resolve
  some reported issues. They only affect two drivers:

   - rtsx_usb: fix for of-reported DMA warning error, the driver was
     handling memory buffers in odd ways, it has now been fixed up to be
     much simpler and correct by Shuah.

   - at25 eeprom driver bugfix for reported problem

  All of these have been in linux-next for a week with no reported
  problems"

* tag 'char-misc-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: rtsx_usb: set return value in rsp_buf alloc err path
  misc: rtsx_usb: use separate command and response buffers
  misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
  eeprom: at25: Rework buggy read splitting

22 months agoMerge tag 'io_uring-5.19-2022-07-09' of git://git.kernel.dk/linux-block
Linus Torvalds [Sun, 10 Jul 2022 16:14:54 +0000 (09:14 -0700)] 
Merge tag 'io_uring-5.19-2022-07-09' of git://git.kernel.dk/linux-block

Pull io_uring fix from Jens Axboe:
 "A single fix for an issue that came up yesterday that we should plug
  for -rc6.

  This is a regression introduced in this cycle"

* tag 'io_uring-5.19-2022-07-09' of git://git.kernel.dk/linux-block:
  io_uring: check that we have a file table when allocating update slots

22 months agoMerge tag 'kbuild-fixes-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 10 Jul 2022 15:59:02 +0000 (08:59 -0700)] 
Merge tag 'kbuild-fixes-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Adjust gen_compile_commands.py to the format change of *.mod files

 - Remove unused macro in scripts/Makefile.modinst

* tag 'kbuild-fixes-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: remove unused cmd_none in scripts/Makefile.modinst
  gen_compile_commands: handle multiple lines per .mod file

22 months agoMerge tag 'irq_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 10 Jul 2022 15:52:12 +0000 (08:52 -0700)] 
Merge tag 'irq_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Borislav Petkov:

 - Gracefully handle failure to request MMIO resources in the GICv3
   driver

 - Make a static key static in the Apple AIC driver

 - Fix the Xilinx intc driver dependency on OF_ADDRESS

* tag 'irq_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/apple-aic: Make symbol 'use_fast_ipi' static
  irqchip/xilinx: Add explicit dependency on OF_ADDRESS
  irqchip/gicv3: Handle resource request failure consistently

22 months agoMerge tag 'x86_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 10 Jul 2022 15:43:52 +0000 (08:43 -0700)] 
Merge tag 'x86_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Prepare for and clear .brk early in order to address XenPV guests
   failures where the hypervisor verifies page tables and uninitialized
   data in that range leads to bogus failures in those checks

 - Add any potential setup_data entries supplied at boot to the identity
   pagetable mappings to prevent kexec kernel boot failures. Usually,
   this is not a problem for the normal kernel as those mappings are
   part of the initially mapped 2M pages but if kexec gets to allocate
   the second kernel somewhere else, those setup_data entries need to be
   mapped there too.

 - Fix objtool not to discard text references from the __tracepoints
   section so that ENDBR validation still works

 - Correct the setup_data types limit as it is user-visible, before 5.19
   releases

* tag 'x86_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Fix the setup data types max limit
  x86/ibt, objtool: Don't discard text references from tracepoint section
  x86/compressed/64: Add identity mappings for setup_data entries
  x86: Fix .brk attribute in linker script
  x86: Clear .brk area at early boot
  x86/xen: Use clear_bss() for Xen PV guests

22 months agokbuild: remove unused cmd_none in scripts/Makefile.modinst
Masahiro Yamada [Thu, 30 Jun 2022 08:09:35 +0000 (17:09 +0900)] 
kbuild: remove unused cmd_none in scripts/Makefile.modinst

Commit 65ce9c38326e ("kbuild: move module strip/compression code into
scripts/Makefile.modinst") added this unused code.

Perhaps, I thought cmd_none was useful for CONFIG_MODULE_COMPRESS_NONE,
but I did not use it after all.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
22 months agox86/boot: Fix the setup data types max limit
Borislav Petkov [Sun, 10 Jul 2022 09:15:47 +0000 (11:15 +0200)] 
x86/boot: Fix the setup data types max limit

Commit in Fixes forgot to change the SETUP_TYPE_MAX definition which
contains the highest valid setup data type.

Correct that.

Fixes: 5ea98e01ab52 ("x86/boot: Add Confidential Computing type to setup_data")
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/ddba81dd-cc92-699c-5274-785396a17fb5@zytor.com
22 months agoMerge tag 'i2c-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 9 Jul 2022 18:20:15 +0000 (11:20 -0700)] 
Merge tag 'i2c-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two I2C driver bugfixes preventing resource leaks"

* tag 'i2c-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: cadence: Unregister the clk notifier in error path
  i2c: piix4: Fix a memory leak in the EFCH MMIO support

22 months agodrm/aperture: Run fbdev removal before internal helpers
Thomas Zimmermann [Fri, 17 Jun 2022 12:10:27 +0000 (14:10 +0200)] 
drm/aperture: Run fbdev removal before internal helpers

Always run fbdev removal first to remove simpledrm via sysfb_disable().
This clears the internal state.

The later call to drm_aperture_detach_drivers() then does nothing.
Otherwise, with drm_aperture_detach_drivers() running first, the call to
sysfb_disable() uses inconsistent state.

Example backtrace show below:

  BUG: KASAN: use-after-free in device_del+0x79/0x5f0
  Read of size 8 at addr ffff888108185050 by task systemd-udevd/311
  CPU: 0 PID: 311 Comm: systemd-udevd Tainted: G            E     5.19.0-rc2-1-default+ #1689
  Hardware name: HP ProLiant DL120 G7, BIOS J01 04/21/2011
  Call Trace:
    device_del+0x79/0x5f0
    platform_device_del.part.0+0x19/0xe0
    platform_device_unregister+0x1c/0x30
    sysfb_disable+0x2d/0x70
    remove_conflicting_framebuffers+0x1c/0xf0
    remove_conflicting_pci_framebuffers+0x130/0x1a0
    drm_aperture_remove_conflicting_pci_framebuffers+0x86/0xb0
    mgag200_pci_probe+0x2d/0x140 [mgag200]

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 873eb3b11860 ("fbdev: Disable sysfb device registration when removing conflicting FBs")
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Changcheng Deng <deng.changcheng@zte.com.cn>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
22 months agoptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()
Sven Schnelle [Wed, 6 Jul 2022 10:16:25 +0000 (12:16 +0200)] 
ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()

CI reported the following splat while running the strace testsuite:

  WARNING: CPU: 1 PID: 3570031 at kernel/ptrace.c:272 ptrace_check_attach+0x12e/0x178
  CPU: 1 PID: 3570031 Comm: strace Tainted: G           OE     5.19.0-20220624.rc3.git0.ee819a77d4e7.300.fc36.s390x #1
  Hardware name: IBM 3906 M04 704 (z/VM 7.1.0)
  Call Trace:
   [<00000000ab4b645a>] ptrace_check_attach+0x132/0x178
  ([<00000000ab4b6450>] ptrace_check_attach+0x128/0x178)
   [<00000000ab4b6cde>] __s390x_sys_ptrace+0x86/0x160
   [<00000000ac03fcec>] __do_syscall+0x1d4/0x200
   [<00000000ac04e312>] system_call+0x82/0xb0
  Last Breaking-Event-Address:
   [<00000000ab4ea3c8>] wait_task_inactive+0x98/0x190

This is because JOBCTL_TRACED is set, but the task is not in TASK_TRACED
state. Caused by ptrace_unfreeze_traced() which does:

task->jobctl &= ~TASK_TRACED

but it should be:

task->jobctl &= ~JOBCTL_TRACED

Fixes: 31cae1eaae4f ("sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Tested-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
22 months agoMerge tag 'powerpc-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sat, 9 Jul 2022 17:34:08 +0000 (10:34 -0700)] 
Merge tag 'powerpc-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:

 - On Power8 bare metal, fix creation of RNG platform devices, which are
   needed for the /dev/hwrng driver to probe correctly.

Thanks to Jason A. Donenfeld, and Sachin Sant.

* tag 'powerpc-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv: delay rng platform device creation until later in boot

22 months agoio_uring: check that we have a file table when allocating update slots
Jens Axboe [Sat, 9 Jul 2022 13:02:10 +0000 (07:02 -0600)] 
io_uring: check that we have a file table when allocating update slots

If IORING_FILE_INDEX_ALLOC is set asking for an allocated slot, the
helper doesn't check if we actually have a file table or not. The non
alloc path does do that correctly, and returns -ENXIO if we haven't set
one up.

Do the same for the allocated path, avoiding a NULL pointer dereference
when trying to find a free bit.

Fixes: a7c41b4687f5 ("io_uring: let IORING_OP_FILES_UPDATE support choosing fixed file slots")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
22 months agoMerge tag 'fscache-fixes-20220708' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 8 Jul 2022 23:08:48 +0000 (16:08 -0700)] 
Merge tag 'fscache-fixes-20220708' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull fscache fixes from David Howells:

 - Fix a check in fscache_wait_on_volume_collision() in which the
   polarity is reversed. It should complain if a volume is still marked
   acquisition-pending after 20s, but instead complains if the mark has
   been cleared (ie. the condition has cleared).

   Also switch an open-coded test of the ACQUIRE_PENDING volume flag to
   use the helper function for consistency.

 - Not a fix per se, but neaten the code by using a helper to check for
   the DROPPED state.

 - Fix cachefiles's support for erofs to only flush requests associated
   with a released control file, not all requests.

 - Fix a race between one process invalidating an object in the cache
   and another process trying to look it up.

* tag 'fscache-fixes-20220708' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  fscache: Fix invalidation/lookup race
  cachefiles: narrow the scope of flushed requests when releasing fd
  fscache: Introduce fscache_cookie_is_dropped()
  fscache: Fix if condition in fscache_wait_on_volume_collision()

22 months agoMerge tag 'acpi-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 8 Jul 2022 20:05:56 +0000 (13:05 -0700)] 
Merge tag 'acpi-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix two recent regressions related to CPPC support.

  Specifics:

   - Prevent _CPC from being used if the platform firmware does not
     confirm CPPC v2 support via _OSC (Mario Limonciello)

   - Allow systems with X86_FEATURE_CPPC set to use _CPC even if CPPC
     support cannot be agreed on via _OSC (Mario Limonciello)"

* tag 'acpi-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: CPPC: Don't require _OSC if X86_FEATURE_CPPC is supported
  ACPI: CPPC: Only probe for _CPC if CPPC v2 is acked

22 months agoMerge tag 'pm-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 8 Jul 2022 20:01:04 +0000 (13:01 -0700)] 
Merge tag 'pm-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix a NULL pointer dereference in a devfreq driver and a runtime
  PM framework issue that may cause a supplier device to be suspended
  before its consumer.

  Specifics:

   - Fix NULL pointer dereference related to printing a diagnostic
     message in the exynos-bus devfreq driver (Christian Marangi)

   - Fix race condition in the runtime PM framework which in some cases
     may cause a supplier device to be suspended when its consumer is
     still active (Rafael Wysocki)"

* tag 'pm-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / devfreq: exynos-bus: Fix NULL pointer dereference
  PM: runtime: Fix supplier device management during consumer probe
  PM: runtime: Redefine pm_runtime_release_supplier()

22 months agoMerge tag 'cxl-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 8 Jul 2022 19:55:25 +0000 (12:55 -0700)] 
Merge tag 'cxl-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl fixes from Vishal Verma:

 - Update MAINTAINERS for Ben's email

 - Fix cleanup of port devices on failure to probe driver

 - Fix endianness in get/set LSA mailbox command structures

 - Fix memregion_free() fallback definition

 - Fix missing variable payload checks in CXL cmd size validation

* tag 'cxl-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/mbox: Fix missing variable payload checks in cmd size validation
  memregion: Fix memregion_free() fallback definition
  cxl/mbox: Use __le32 in get,set_lsa mailbox structures
  cxl/core: Use is_endpoint_decoder
  cxl: Fix cleanup of port devices on failure to probe driver.
  MAINTAINERS: Update Ben's email address

22 months agoMerge tag 'iommu-fixes-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 8 Jul 2022 19:49:00 +0000 (12:49 -0700)] 
Merge tag 'iommu-fixes-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - fix device setup failures in the Intel VT-d driver when the PASID
   table is shared

 - fix Intel VT-d device hot-add failure due to wrong device notifier
   order

 - remove the old IOMMU mailing list from the MAINTAINERS file now that
   it has been retired

* tag 'iommu-fixes-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  MAINTAINERS: Remove iommu@lists.linux-foundation.org
  iommu/vt-d: Fix RID2PASID setup/teardown failure
  iommu/vt-d: Fix PCI bus rescan device hot add

22 months agoMerge tag 'gpio-fixes-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 8 Jul 2022 19:39:52 +0000 (12:39 -0700)] 
Merge tag 'gpio-fixes-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix a build error in gpio-vf610

 - fix a null-pointer dereference in the GPIO character device code

* tag 'gpio-fixes-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: cdev: fix null pointer dereference in linereq_free()
  gpio: vf610: fix compilation error

22 months agoMerge branch 'pm-core'
Rafael J. Wysocki [Fri, 8 Jul 2022 18:38:51 +0000 (20:38 +0200)] 
Merge branch 'pm-core'

Merge a runtime PM framework cleanup and fix related to device links.

* pm-core:
  PM: runtime: Fix supplier device management during consumer probe
  PM: runtime: Redefine pm_runtime_release_supplier()

22 months agoMerge tag 'block-5.19-2022-07-08' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 8 Jul 2022 18:32:23 +0000 (11:32 -0700)] 
Merge tag 'block-5.19-2022-07-08' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "NVMe pull request with another id quirk addition, and a tracing fix"

* tag 'block-5.19-2022-07-08' of git://git.kernel.dk/linux-block:
  nvme: use struct group for generic command dwords
  nvme-pci: phison e16 has bogus namespace ids

22 months agoMerge tag 'io_uring-5.19-2022-07-08' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 8 Jul 2022 18:25:01 +0000 (11:25 -0700)] 
Merge tag 'io_uring-5.19-2022-07-08' of git://git.kernel.dk/linux-block

Pull io_uring tweak from Jens Axboe:
 "Just a minor tweak to an addition made in this release cycle: padding
  a 32-bit value that's in a 64-bit union to avoid any potential
  funkiness from that"

* tag 'io_uring-5.19-2022-07-08' of git://git.kernel.dk/linux-block:
  io_uring: explicit sqe padding for ioctl commands

22 months agoMerge tag 'for-5.19/fbdev-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Fri, 8 Jul 2022 18:03:26 +0000 (11:03 -0700)] 
Merge tag 'for-5.19/fbdev-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev fixes from Helge Deller:

 - fbcon now prevents switching to screen resolutions which are smaller
   than the font size, and prevents enabling a font which is bigger than
   the current screen resolution. This fixes vmalloc-out-of-bounds
   accesses found by KASAN.

 - Guiling Deng fixed a bug where the centered fbdev logo wasn't
   displayed correctly if the screen size matched the logo size.

 - Hsin-Yi Wang provided a patch to include errno.h to fix build when
   CONFIG_OF isn't enabled.

* tag 'for-5.19/fbdev-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbcon: Use fbcon_info_from_console() in fbcon_modechange_possible()
  fbmem: Check virtual screen sizes in fb_set_var()
  fbcon: Prevent that screen size is smaller than font size
  fbcon: Disallow setting font bigger than screen size
  video: of_display_timing.h: include errno.h
  fbdev: fbmem: Fix logo center image dx issue

22 months agodrm/tegra: vic: Use devm_platform_ioremap_resource()
Lv Ruyi [Thu, 21 Apr 2022 08:45:42 +0000 (08:45 +0000)] 
drm/tegra: vic: Use devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of calling
platform_get_resource() and devm_ioremap_resource() separately. Make the
code simpler without functional changes.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Use the bitmap API to allocate bitmaps
Christophe JAILLET [Mon, 4 Jul 2022 20:31:51 +0000 (22:31 +0200)] 
gpu: host1x: Use the bitmap API to allocate bitmaps

Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

While at it, remove a useless bitmap_zero() call. The bitmap is already
zero'ed when allocated.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Generalize host1x_cdma_push_wide()
Mikko Perttunen [Fri, 8 Jul 2022 15:18:02 +0000 (18:18 +0300)] 
gpu: host1x: Generalize host1x_cdma_push_wide()

host1x_cdma_push_wide() had the assumptions that the last parameter word
was a NOP opcode, and that NOP opcodes could be used in all situations.

Neither are true with the new job opcode sequence, so adjust the
function to not have these assumptions, and instead place an early
RESTART opcode when necessary to jump back to the beginning of the
pushbuffer.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Initialize syncval in channel_submit()
Mikko Perttunen [Fri, 8 Jul 2022 15:18:01 +0000 (18:18 +0300)] 
gpu: host1x: Initialize syncval in channel_submit()

During the refactoring of channel_submit(), assignment of syncval was
moved but it is also used in channel_submit(). Add this assignment back
to channel_submit() as well.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/msm/dpu: Fix for non-visible planes
Rob Clark [Thu, 7 Jul 2022 21:20:00 +0000 (14:20 -0700)] 
drm/msm/dpu: Fix for non-visible planes

Fixes `kms_cursor_crc --run-subtest cursor-offscreen`.. when the cursor
moves offscreen the plane becomes non-visible, so we need to skip over
it in crtc atomic test and mixer setup.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/492819/
Link: https://lore.kernel.org/r/20220707212003.1710163-1-robdclark@gmail.com
22 months agodrm/tegra: Include DMA API header where used
Robin Murphy [Mon, 11 Apr 2022 19:49:10 +0000 (20:49 +0100)] 
drm/tegra: Include DMA API header where used

Even though the IOVA API never actually needed it, iova.h is still
carrying an include of dma-mapping.h, now solely for the sake of not
breaking tegra-drm. Fix that properly.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/tegra: Fix vmapping of prime buffers
Dmitry Osipenko [Tue, 28 Jun 2022 22:42:39 +0000 (01:42 +0300)] 
drm/tegra: Fix vmapping of prime buffers

The code assumes that Tegra GEM is permanently vmapped, which is not
true for the scattered buffers. After converting Tegra video decoder
driver to V4L API, we're now getting a BUG_ON from dma-buf core on playing
video using libvdpau-tegra on T30+ because tegra_gem_prime_vmap() sets
vaddr to NULL. Older pre-V4L video decoder driver wasn't vmapping dma-bufs.
Fix it by actually vmapping the exported GEMs.

Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/tegra: vic: Fix build warning when CONFIG_PM=n
YueHaibing [Sat, 5 Mar 2022 12:32:00 +0000 (20:32 +0800)] 
drm/tegra: vic: Fix build warning when CONFIG_PM=n

drivers/gpu/drm/tegra/vic.c:326:12: error: â€˜vic_runtime_suspend’ defined but not used [-Werror=unused-function]
 static int vic_runtime_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/tegra/vic.c:292:12: error: â€˜vic_runtime_resume’ defined but not used [-Werror=unused-function]
 static int vic_runtime_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~

Mark it as __maybe_unused.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Register context bus unconditionally
Robin Murphy [Thu, 7 Jul 2022 17:30:44 +0000 (18:30 +0100)] 
gpu: host1x: Register context bus unconditionally

Conditional registration is a problem for other subsystems which may
unwittingly try to interact with host1x_context_device_bus_type in an
uninitialised state on non-Tegra platforms. A look under /sys/bus on a
typical system already reveals plenty of entries from enabled but
otherwise irrelevant configs, so lets keep things simple and register
our context bus unconditionally too.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/tegra: vic: Add Tegra234 support
Mikko Perttunen [Mon, 27 Jun 2022 14:20:08 +0000 (17:20 +0300)] 
drm/tegra: vic: Add Tegra234 support

Add Tegra234 support for VIC. It is backwards compatible with
Tegra194.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Use RESTART_W to skip timed out jobs on Tegra186+
Mikko Perttunen [Mon, 27 Jun 2022 14:20:07 +0000 (17:20 +0300)] 
gpu: host1x: Use RESTART_W to skip timed out jobs on Tegra186+

When MLOCK enforcement is enabled, the 0-word write currently done
is rejected by the hardware outside of an MLOCK region. As such,
on these chips, which also have the newer, more convenient RESTART_W
opcode, use that instead to skip over the timed out job.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Add MLOCK release code on Tegra234
Mikko Perttunen [Mon, 27 Jun 2022 14:20:06 +0000 (17:20 +0300)] 
gpu: host1x: Add MLOCK release code on Tegra234

With the full-featured opcode sequence using MLOCKs, we need to also
unlock those MLOCKs in the event of a timeout. However, it turns out
that on Tegra186/Tegra194, by default, we don't need to do this;
furthermore, on Tegra234 it is much simpler to do; so only implement
this on Tegra234 for the time being.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Rewrite job opcode sequence
Mikko Perttunen [Mon, 27 Jun 2022 14:20:05 +0000 (17:20 +0300)] 
gpu: host1x: Rewrite job opcode sequence

For new (Tegra186+) SoCs, use a new ('full-featured') job opcode
sequence that is compatible with virtualization. In particular,
the Host1x hardware in Tegra234 is more strict regarding the sequence,
requiring ACQUIRE_MLOCK-SETCLASS-SETSTREAMID opcodes to occur in
that sequence without gaps (except for SETPAYLOAD), so let's do it
properly in one go now.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Tegra234 device data and headers
Mikko Perttunen [Mon, 27 Jun 2022 14:20:04 +0000 (17:20 +0300)] 
gpu: host1x: Tegra234 device data and headers

Add device data and chip headers for Tegra234.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Program interrupt destinations on Tegra234
Mikko Perttunen [Mon, 27 Jun 2022 14:20:03 +0000 (17:20 +0300)] 
gpu: host1x: Program interrupt destinations on Tegra234

On Tegra234, each Host1x VM has 8 interrupt lines. Each syncpoint
can be configured with which interrupt line should be used for
threshold interrupt, allowing for load balancing.

For now, to keep backwards compatibility, just set all syncpoints
to the first interrupt.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Allow reset to be missing
Mikko Perttunen [Mon, 27 Jun 2022 14:20:02 +0000 (17:20 +0300)] 
gpu: host1x: Allow reset to be missing

Host1x on Tegra234 does not have a software-controllable reset line.
As such, don't bail out if we don't find one in the device tree.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Program virtualization tables
Mikko Perttunen [Mon, 27 Jun 2022 14:20:01 +0000 (17:20 +0300)] 
gpu: host1x: Program virtualization tables

Program virtualization tables specifying which VMs have access to which
Host1x hardware resources. Programming these has become mandatory in
Tegra234.

For now, since the driver does not operate as a Host1x hypervisor, we
basically allow access to everything to everyone.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Simplify register mapping and add common aperture
Mikko Perttunen [Mon, 27 Jun 2022 14:20:00 +0000 (17:20 +0300)] 
gpu: host1x: Simplify register mapping and add common aperture

Refactor 'regs' property loading using devm_platform_ioremap_*
and add loading of the 'common' region found on Tegra234.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Deduplicate hardware headers
Mikko Perttunen [Mon, 27 Jun 2022 14:19:59 +0000 (17:19 +0300)] 
gpu: host1x: Deduplicate hardware headers

Host1x class information and opcodes are unchanged or backwards
compatible across SoCs so let's not duplicate them for each one
but have them in a shared header file.

At the same time, add opcode functions for acquire/release_mlock.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/tegra: Implement stream ID related callbacks on engines
Mikko Perttunen [Mon, 27 Jun 2022 14:19:54 +0000 (17:19 +0300)] 
drm/tegra: Implement stream ID related callbacks on engines

Implement the get_streamid_offset and can_use_memory_ctx callbacks
required for supporting context isolation. Since old firmware on VIC
cannot support context isolation without hacks that we don't want to
implement, check the firmware binary to see if context isolation
should be enabled.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/tegra: Support context isolation
Mikko Perttunen [Mon, 27 Jun 2022 14:19:53 +0000 (17:19 +0300)] 
drm/tegra: Support context isolation

For engines that support context isolation, allocate a context when
opening a channel, and set up stream ID offset and context fields
when submitting a job.

As of this commit, the stream ID offset and fallback stream ID
are not used when context isolation is disabled. However, with
upcoming patches that enable a full featured job opcode sequence,
these will be necessary.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/tegra: nvdec: Fix TRANSCFG register offset
Mikko Perttunen [Mon, 27 Jun 2022 14:19:52 +0000 (17:19 +0300)] 
drm/tegra: nvdec: Fix TRANSCFG register offset

NVDEC's TRANSCFG register is at a different offset than VIC.
This becomes a problem now when context isolation is enabled and
the reset value of the register is no longer sufficient.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/tegra: falcon: Set DMACTX field on DMA transactions
Mikko Perttunen [Mon, 27 Jun 2022 14:19:51 +0000 (17:19 +0300)] 
drm/tegra: falcon: Set DMACTX field on DMA transactions

The DMACTX field determines which context, as specified in the
TRANSCFG register, is used. While during boot it doesn't matter
which is used, later on it matters and this value is reused by
the firmware.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Program context stream ID on submission
Mikko Perttunen [Mon, 27 Jun 2022 14:19:49 +0000 (17:19 +0300)] 
gpu: host1x: Program context stream ID on submission

Add code to do stream ID switching at the beginning of a job. The
stream ID is switched to the stream ID specified by the context
passed in the job structure.

Before switching the stream ID, an OP_DONE wait is done on the
channel's engine to ensure that there is no residual ongoing
work that might do DMA using the new stream ID.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agogpu: host1x: Add context device management code
Mikko Perttunen [Mon, 27 Jun 2022 14:19:48 +0000 (17:19 +0300)] 
gpu: host1x: Add context device management code

Add code to register context devices from device tree, allocate them
out and manage their refcounts.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodt-bindings: host1x: Fix bracketing in example
Mikko Perttunen [Mon, 27 Jun 2022 14:19:56 +0000 (17:19 +0300)] 
dt-bindings: host1x: Fix bracketing in example

The bracketing for the interrupts property in the device tree
example is incorrect. Fix it.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodt-bindings: Add bindings for Tegra234 Host1x and VIC
Mikko Perttunen [Mon, 27 Jun 2022 14:19:55 +0000 (17:19 +0300)] 
dt-bindings: Add bindings for Tegra234 Host1x and VIC

Update VIC and Host1x bindings for changes in Tegra234.

Namely,
- New compatible strings
- Sharded syncpoint interrupts
- Optional reset.

Also, fix the order of descriptions for VM/hypervisor
register apertures -- while the reg-names specification
was correct, the descriptions for these were switched.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodt-bindings: host1x: Add iommu-map property
Mikko Perttunen [Mon, 27 Jun 2022 14:19:47 +0000 (17:19 +0300)] 
dt-bindings: host1x: Add iommu-map property

Add schema information for specifying context stream IDs. This uses
the standard iommu-map property.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agoMAINTAINERS: Remove iommu@lists.linux-foundation.org
Joerg Roedel [Wed, 6 Jul 2022 10:33:31 +0000 (12:33 +0200)] 
MAINTAINERS: Remove iommu@lists.linux-foundation.org

The IOMMU mailing list has moved to iommu@lists.linux.dev
and the old list should bounce by now. Remove it from the
MAINTAINERS file.

Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20220706103331.10215-1-joro@8bytes.org
22 months agoMerge tag 'nvme-5.19-2022-07-07' of git://git.infradead.org/nvme into block-5.19
Jens Axboe [Thu, 7 Jul 2022 23:38:19 +0000 (17:38 -0600)] 
Merge tag 'nvme-5.19-2022-07-07' of git://git.infradead.org/nvme into block-5.19

Pull NVMe fixes from Christoph:

"nvme fixes for Linux 5.19

 - another bogus identifier quirk (Keith Busch)
 - use struct group in the tracer to avoid a gcc warning (Keith Busch)"

* tag 'nvme-5.19-2022-07-07' of git://git.infradead.org/nvme:
  nvme: use struct group for generic command dwords
  nvme-pci: phison e16 has bogus namespace ids

22 months agoio_uring: explicit sqe padding for ioctl commands
Pavel Begunkov [Thu, 7 Jul 2022 14:00:38 +0000 (15:00 +0100)] 
io_uring: explicit sqe padding for ioctl commands

32 bit sqe->cmd_op is an union with 64 bit values. It's always a good
idea to do padding explicitly. Also zero check it in prep, so it can be
used in the future if needed without compatibility concerns.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/e6b95a05e970af79000435166185e85b196b2ba2.1657202417.git.asml.silence@gmail.com
[axboe: turn bitwise OR into logical variant]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
22 months agoi2c: cadence: Unregister the clk notifier in error path
Satish Nagireddy [Tue, 28 Jun 2022 19:12:16 +0000 (12:12 -0700)] 
i2c: cadence: Unregister the clk notifier in error path

This patch ensures that the clock notifier is unregistered
when driver probe is returning error.

Fixes: df8eb5691c48 ("i2c: Add driver for Cadence I2C controller")
Signed-off-by: Satish Nagireddy <satish.nagireddy@getcruise.com>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
22 months agoMerge tag 'devfreq-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel...
Rafael J. Wysocki [Thu, 7 Jul 2022 19:46:05 +0000 (21:46 +0200)] 
Merge tag 'devfreq-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux

Pull a devfreq fix for 5.19-rc6 from Chanwoo Choi:

"- Fix exynos-bus NULL pointer dereference by correctly using the local
   generated freq_table to output the debug values instead of using the
   profile freq_table that is not used in the driver."

* tag 'devfreq-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
  PM / devfreq: exynos-bus: Fix NULL pointer dereference

22 months agoPM / devfreq: exynos-bus: Fix NULL pointer dereference
Christian Marangi [Fri, 1 Jul 2022 13:31:26 +0000 (15:31 +0200)] 
PM / devfreq: exynos-bus: Fix NULL pointer dereference

Fix exynos-bus NULL pointer dereference by correctly using the local
generated freq_table to output the debug values instead of using the
profile freq_table that is not used in the driver.

Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: b5d281f6c16d ("PM / devfreq: Rework freq_table to be local to devfreq struct")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
22 months agoMerge tag 'loongarch-fixes-5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 7 Jul 2022 17:41:27 +0000 (10:41 -0700)] 
Merge tag 'loongarch-fixes-5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "A fix for tinyconfig build error, a fix for section mismatch warning,
  and two cleanups of obsolete code"

* tag 'loongarch-fixes-5.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: Fix section mismatch warning
  LoongArch: Fix build errors for tinyconfig
  LoongArch: Remove obsolete mentions of vcsr
  LoongArch: Drop these obsolete selects in Kconfig

22 months agoMerge tag 'net-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 7 Jul 2022 17:08:20 +0000 (10:08 -0700)] 
Merge tag 'net-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf, netfilter, can, and bluetooth.

  Current release - regressions:

   - bluetooth: fix deadlock on hci_power_on_sync

  Previous releases - regressions:

   - sched: act_police: allow 'continue' action offload

   - eth: usbnet: fix memory leak in error case

   - eth: ibmvnic: properly dispose of all skbs during a failover

  Previous releases - always broken:

   - bpf:
       - fix insufficient bounds propagation from
         adjust_scalar_min_max_vals
       - clear page contiguity bit when unmapping pool

   - netfilter: nft_set_pipapo: release elements in clone from
     abort path

   - mptcp: netlink: issue MP_PRIO signals from userspace PMs

   - can:
       - rcar_canfd: fix data transmission failed on R-Car V3U
       - gs_usb: gs_usb_open/close(): fix memory leak

  Misc:

   - add Wenjia as SMC maintainer"

* tag 'net-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
  wireguard: Kconfig: select CRYPTO_CHACHA_S390
  crypto: s390 - do not depend on CRYPTO_HW for SIMD implementations
  wireguard: selftests: use microvm on x86
  wireguard: selftests: always call kernel makefile
  wireguard: selftests: use virt machine on m68k
  wireguard: selftests: set fake real time in init
  r8169: fix accessing unset transport header
  net: rose: fix UAF bug caused by rose_t0timer_expiry
  usbnet: fix memory leak in error case
  Revert "tls: rx: move counting TlsDecryptErrors for sync"
  mptcp: update MIB_RMSUBFLOW in cmd_sf_destroy
  mptcp: fix local endpoint accounting
  selftests: mptcp: userspace PM support for MP_PRIO signals
  mptcp: netlink: issue MP_PRIO signals from userspace PMs
  mptcp: Acquire the subflow socket lock before modifying MP_PRIO flags
  mptcp: Avoid acquiring PM lock for subflow priority changes
  mptcp: fix locking in mptcp_nl_cmd_sf_destroy()
  net/mlx5e: Fix matchall police parameters validation
  net/sched: act_police: allow 'continue' action offload
  net: lan966x: hardcode the number of external ports
  ...

22 months agoMerge tag 'pinctrl-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Thu, 7 Jul 2022 17:02:38 +0000 (10:02 -0700)] 
Merge tag 'pinctrl-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:

 - Tag Intel pin control as supported in MAINTAINERS

 - Fix a NULL pointer exception in the Aspeed driver

 - Correct some NAND functions in the Sunxi A83T driver

 - Use the right offset for some Sunxi pins

 - Fix a zero base offset in the Freescale (NXP) i.MX93

 - Fix the IRQ support in the STM32 driver

* tag 'pinctrl-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: stm32: fix optional IRQ support to gpios
  pinctrl: imx: Add the zero base flag for imx93
  pinctrl: sunxi: sunxi_pconf_set: use correct offset
  pinctrl: sunxi: a83t: Fix NAND function name for some pins
  pinctrl: aspeed: Fix potential NULL dereference in aspeed_pinmux_set_mux()
  MAINTAINERS: Update Intel pin control to Supported

22 months agodrm/msm/mdp5: Fix global state lock backoff
Rob Clark [Thu, 7 Jul 2022 16:20:37 +0000 (09:20 -0700)] 
drm/msm/mdp5: Fix global state lock backoff

We need to grab the lock after the early return for !hwpipe case.
Otherwise, we could have hit contention yet still returned 0.

Fixes an issue that the new CONFIG_DRM_DEBUG_MODESET_LOCK stuff flagged
in CI:

   WARNING: CPU: 0 PID: 282 at drivers/gpu/drm/drm_modeset_lock.c:296 drm_modeset_lock+0xf8/0x154
   Modules linked in:
   CPU: 0 PID: 282 Comm: kms_cursor_lega Tainted: G        W         5.19.0-rc2-15930-g875cc8bc536a #1
   Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
   pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
   pc : drm_modeset_lock+0xf8/0x154
   lr : drm_atomic_get_private_obj_state+0x84/0x170
   sp : ffff80000cfab6a0
   x29: ffff80000cfab6a0 x28: 0000000000000000 x27: ffff000083bc4d00
   x26: 0000000000000038 x25: 0000000000000000 x24: ffff80000957ca58
   x23: 0000000000000000 x22: ffff000081ace080 x21: 0000000000000001
   x20: ffff000081acec18 x19: ffff80000cfabb80 x18: 0000000000000038
   x17: 0000000000000000 x16: 0000000000000000 x15: fffffffffffea0d0
   x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47
   x11: ffff80000a386aa8 x10: 0000000000000029 x9 : ffff80000cfab610
   x8 : 0000000000000029 x7 : 0000000000000014 x6 : 0000000000000000
   x5 : 0000000000000001 x4 : ffff8000081ad904 x3 : 0000000000000029
   x2 : ffff0000801db4c0 x1 : ffff80000cfabb80 x0 : ffff000081aceb58
   Call trace:
    drm_modeset_lock+0xf8/0x154
    drm_atomic_get_private_obj_state+0x84/0x170
    mdp5_get_global_state+0x54/0x6c
    mdp5_pipe_release+0x2c/0xd4
    mdp5_plane_atomic_check+0x2ec/0x414
    drm_atomic_helper_check_planes+0xd8/0x210
    drm_atomic_helper_check+0x54/0xb0
    ...
   ---[ end trace 0000000000000000 ]---
   drm_modeset_lock attempting to lock a contended lock without backoff:
      drm_modeset_lock+0x148/0x154
      mdp5_get_global_state+0x30/0x6c
      mdp5_pipe_release+0x2c/0xd4
      mdp5_plane_atomic_check+0x290/0x414
      drm_atomic_helper_check_planes+0xd8/0x210
      drm_atomic_helper_check+0x54/0xb0
      drm_atomic_check_only+0x4b0/0x8f4
      drm_atomic_commit+0x68/0xe0

Fixes: d59be579fa93 ("drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/492701/
Link: https://lore.kernel.org/r/20220707162040.1594855-1-robdclark@gmail.com
22 months agosignal handling: don't use BUG_ON() for debugging
Linus Torvalds [Wed, 6 Jul 2022 19:20:59 +0000 (12:20 -0700)] 
signal handling: don't use BUG_ON() for debugging

These are indeed "should not happen" situations, but it turns out recent
changes made the 'task_is_stopped_or_trace()' case trigger (fix for that
exists, is pending more testing), and the BUG_ON() makes it
unnecessarily hard to actually debug for no good reason.

It's been that way for a long time, but let's make it clear: BUG_ON() is
not good for debugging, and should never be used in situations where you
could just say "this shouldn't happen, but we can continue".

Use WARN_ON_ONCE() instead to make sure it gets logged, and then just
continue running.  Instead of making the system basically unusuable
because you crashed the machine while potentially holding some very core
locks (eg this function is commonly called while holding 'tasklist_lock'
for writing).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
22 months agoMAINTAINERS: Rectify entry for NVIDIA TEGRA DRM and VIDEO DRIVER
Lukas Bulwahn [Thu, 23 Jun 2022 09:54:52 +0000 (11:54 +0200)] 
MAINTAINERS: Rectify entry for NVIDIA TEGRA DRM and VIDEO DRIVER

Commit fd27de58b0ad ("dt-bindings: display: tegra: Convert to json-schema")
converts nvidia,tegra20-host1x.txt to yaml, but missed to adjust its
references in MAINTAINERS.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.

Repair these file references in NVIDIA TEGRA DRM and VIDEO DRIVER.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodt-bindings: display: tegra: Convert to json-schema
Thierry Reding [Mon, 25 May 2020 15:32:08 +0000 (17:32 +0200)] 
dt-bindings: display: tegra: Convert to json-schema

Convert the Tegra host1x controller bindings from the free-form text
format to json-schema.

This also adds the missing display-hub DT bindings that were not
previously documented.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
22 months agodrm/msm: Make enable_eviction flag static
Rob Clark [Sat, 25 Jun 2022 22:54:37 +0000 (15:54 -0700)] 
drm/msm: Make enable_eviction flag static

No need for it to be visible outside of this one src file.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/491219/
Link: https://lore.kernel.org/r/20220625225454.81039-3-robdclark@gmail.com
22 months agox86/ibt, objtool: Don't discard text references from tracepoint section
Peter Zijlstra [Tue, 28 Jun 2022 10:57:42 +0000 (12:57 +0200)] 
x86/ibt, objtool: Don't discard text references from tracepoint section

On Tue, Jun 28, 2022 at 04:28:58PM +0800, Pengfei Xu wrote:

> # ./ftracetest
> === Ftrace unit tests ===
> [1] Basic trace file check      [PASS]
> [2] Basic test for tracers      [PASS]
> [3] Basic trace clock test      [PASS]
> [4] Basic event tracing check   [PASS]
> [5] Change the ringbuffer size  [PASS]
> [6] Snapshot and tracing setting        [PASS]
> [7] trace_pipe and trace_marker [PASS]
> [8] Test ftrace direct functions against tracers        [UNRESOLVED]
> [9] Test ftrace direct functions against kprobes        [UNRESOLVED]
> [10] Generic dynamic event - add/remove eprobe events   [FAIL]
> [11] Generic dynamic event - add/remove kprobe events
>
> It 100% reproduced in step 11 and then missing ENDBR BUG generated:
> "
> [ 9332.752836] mmiotrace: enabled CPU7.
> [ 9332.788612] mmiotrace: disabled.
> [ 9337.103426] traps: Missing ENDBR: syscall_regfunc+0x0/0xb0

It turns out that while syscall_regfunc() does have an ENDBR when
generated, it gets sealed by objtool's .ibt_endbr_seal list.

Since the only text references to this function:

  $ git grep syscall_regfunc
  include/linux/tracepoint.h:extern int syscall_regfunc(void);
  include/trace/events/syscalls.h:        syscall_regfunc, syscall_unregfunc
  include/trace/events/syscalls.h:        syscall_regfunc, syscall_unregfunc
  kernel/tracepoint.c:int syscall_regfunc(void)

appear in the __tracepoint section which is excluded by objtool.

Fixes: 3c6f9f77e618 ("objtool: Rework ibt and extricate from stack validation")
Reported-by: Pengfei Xu <pengfei.xu@intel.com
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/Yrrepdaow4F5kqG0@hirez.programming.kicks-ass.net
22 months agogpiolib: cdev: fix null pointer dereference in linereq_free()
Kent Gibson [Wed, 6 Jul 2022 08:45:07 +0000 (16:45 +0800)] 
gpiolib: cdev: fix null pointer dereference in linereq_free()

Fix a kernel NULL pointer dereference reported by gpio kselftests.

linereq_free() can be called as part of the cleanup of a failed request,
at which time the desc for a line may not have been determined, so it
is unsafe to dereference without a check.

Add a check prior to dereferencing the line desc.

Fixes: 2068339a6c35 ("gpiolib: cdev: Add hardware timestamp clock type")
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
22 months agoLoongArch: Fix section mismatch warning
Tiezhu Yang [Mon, 27 Jun 2022 06:57:35 +0000 (14:57 +0800)] 
LoongArch: Fix section mismatch warning

init_numa_memory() is annotated __init and not used by any module,
thus don't export it.

Remove not needed EXPORT_SYMBOL for init_numa_memory() to fix the
following section mismatch warning:

  MODPOST vmlinux.symvers
WARNING: modpost: vmlinux.o(___ksymtab+init_numa_memory+0x0): Section mismatch in reference
from the variable __ksymtab_init_numa_memory to the function .init.text:init_numa_memory()
The symbol init_numa_memory is exported and annotated __init
Fix this by removing the __init annotation of init_numa_memory or drop the export.

This is build on Linux 5.19-rc4.

Fixes: d4b6f1562a3c ("LoongArch: Add Non-Uniform Memory Access (NUMA) support")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
22 months agoLoongArch: Fix build errors for tinyconfig
Huacai Chen [Wed, 6 Jul 2022 03:03:09 +0000 (11:03 +0800)] 
LoongArch: Fix build errors for tinyconfig

Building loongarch:tinyconfig fails with the following error.

./arch/loongarch/include/asm/page.h: In function 'pfn_valid':
./arch/loongarch/include/asm/page.h:42:32: error: 'PHYS_OFFSET' undeclared

Add the missing include file and fix succeeding vdso errors.

Fixes: 09cfefb7fa70 ("LoongArch: Add memory management")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
22 months agoLoongArch: Remove obsolete mentions of vcsr
Qi Hu [Wed, 6 Jul 2022 11:29:37 +0000 (19:29 +0800)] 
LoongArch: Remove obsolete mentions of vcsr

The `vcsr` only exists in the old hardware design, it isn't used in any
shipped hardware from Loongson-3A5000 on. Both scalar FP and LSX/LASX
instructions use the `fcsr` as their control and status registers now.
For example, the RM control bit in fcsr0 is shared by FP, LSX and LASX
instructions.

Particularly, fcsr16 to fcsr31 are reserved for LSX/LASX now, access to
these registers has no visible effect if LSX/LASX is enabled, and will
cause SXD/ASXD exceptions if LSX/LASX is not enabled.

So, mentions of vcsr are obsolete in the first place (it was just used
for debugging), let's remove them.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Qi Hu <huqi@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
22 months agoLoongArch: Drop these obsolete selects in Kconfig
Lukas Bulwahn [Tue, 5 Jul 2022 07:34:05 +0000 (09:34 +0200)] 
LoongArch: Drop these obsolete selects in Kconfig

Commit fa96b57c1490 ("LoongArch: Add build infrastructure") adds the new
file arch/loongarch/Kconfig.

As the work on LoongArch was probably quite some time under development,
various config symbols have changed and disappeared from the time of
initial writing of the Kconfig file and its inclusion in the repository.

The following four commits:

  commit c126a53c2760 ("arch: remove GENERIC_FIND_FIRST_BIT entirely")
  commit 140c8180eb7c ("arch: remove HAVE_COPY_THREAD_TLS")
  commit aca52c398389 ("mm: remove CONFIG_HAVE_MEMBLOCK")
  commit 3f08a302f533 ("mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option")

remove the mentioned config symbol, and enable the intended setup by
default without configuration.

Drop these obsolete selects in loongarch's Kconfig.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>