review.tizen.org Git - platform/kernel/linux-rpi.git/log

gpu/drm: Eliminate DRM_SCHED_PRIORITY_UNSET

Eliminate DRM_SCHED_PRIORITY_UNSET, value of -2, whose only user was
amdgpu. Furthermore, eliminate an index bug, in that when amdgpu boots, it
calls drm_sched_entity_init() with DRM_SCHED_PRIORITY_UNSET, which uses it to
index sched->sched_rq[].

Cc: Alex Deucher <Alexander.Deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Alex Deucher <Alexander.Deucher@amd.com>
Link: https://lore.kernel.org/r/20231017035656.8211-2-luben.tuikov@amd.com

drm/amdgpu: Unset context priority is now invalid

A context priority value of AMD_CTX_PRIORITY_UNSET is now invalid--instead of
carrying it around and passing it to the Direct Rendering Manager--and it
becomes AMD_CTX_PRIORITY_NORMAL in amdgpu_ctx_ioctl(), the gateway to context
creation.

Cc: Alex Deucher <Alexander.Deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Alex Deucher <Alexander.Deucher@amd.com>
Link: https://lore.kernel.org/r/20231017035656.8211-1-luben.tuikov@amd.com

drm/edid: add 8 bpc quirk to the BenQ GW2765

The BenQ GW2765 reports that it supports higher (> 8) bpc modes, but
when trying to set them we end up with a black screen. So, limit it to 8
bpc modes.

Cc: stable@vger.kernel.org # 6.5+
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2610
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231012184927.133137-1-hamza.mahfooz@amd.com

drm/ttm: Reorder sys manager cleanup step

With the current cleanup flow, we could trigger a NULL pointer
dereference if there is a delayed destruction of a BO with a
system resource that gets executed on drain_workqueue() call,
as we attempt to free a resource using an already released
resource manager.

Remove the device from the device list and drain its workqueue
before releasing the system domain manager in ttm_device_fini().

Signed-off-by: Karolina Stolarek <karolina.stolarek@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231016121525.2237838-1-karolina.stolarek@intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>

drm/nouveau/disp: fix DP capable DSM connectors

Just special case DP DSM connectors until we properly figure out how to
deal with this.

This resolves user regressions on GPUs with such connectors without
reverting the original fix.

Cc: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org # 6.4+
Closes: https://gitlab.freedesktop.org/drm/nouveau/-/issues/255
Fixes: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231011114134.861818-1-kherbst@redhat.com

drm/nouveau: exec: fix ioctl kernel-doc warning

kernel-doc emits a warning:

include/uapi/drm/nouveau_drm.h:49: warning: Cannot understand * @NOUVEAU_GETPARAM_EXEC_PUSH_MAX
on line 49 - I thought it was a doc line

We don't have a way to document a macro value via kernel-doc, so
change the "/**" kernel-doc marker to a C comment and format the comment
more like a kernel-doc comment for consistency.

Fixes: d59e75eef52d ("drm/nouveau: exec: report max pushs through getparam")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Danilo Krummrich <dakr@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: Bragatheswaran Manickavel <bragathemanick0908@gmail.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231008140231.17921-1-rdunlap@infradead.org

drm/panel: Move AUX B116XW03 out of panel-edp back to panel-simple

In commit 5f04e7ce392d ("drm/panel-edp: Split eDP panels out of
panel-simple") I moved a pile of panels out of panel-simple driver
into the newly created panel-edp driver. One of those panels, however,
shouldn't have been moved.

As is clear from commit e35e305eff0f ("drm/panel: simple: Add AUO
B116XW03 panel support"), AUX B116XW03 is an LVDS panel. It's used in
exynos5250-snow and exynos5420-peach-pit where it's clear that the
panel is hooked up with LVDS. Furthermore, searching for datasheets I
found one that makes it clear that this panel is LVDS.

As far as I can tell, I got confused because in commit 88d3457ceb82
("drm/panel: auo,b116xw03: fix flash backlight when power on") Jitao
Shi added "DRM_MODE_CONNECTOR_eDP". That seems wrong. Looking at the
downstream ChromeOS trees, it seems like some Mediatek boards are
using a panel that they call "auo,b116xw03" that's an eDP panel. The
best I can guess is that they actually have a different panel that has
similar timing. If so then the proper panel should be used or they
should switch to the generic "edp-panel" compatible.

When moving this back to panel-edp, I wasn't sure what to use for
.bus_flags and .bus_format and whether to add the extra "enable" delay
from commit 88d3457ceb82 ("drm/panel: auo,b116xw03: fix flash
backlight when power on"). I've added formats/flags/delays based on my
(inexpert) analysis of the datasheet. These are untested.

NOTE: if/when this is backported to stable, we might run into some
trouble. Specifically, before 474c162878ba ("arm64: dts: mt8183:
jacuzzi: Move panel under aux-bus") this panel was used by
"mt8183-kukui-jacuzzi", which assumed it was an eDP panel. I don't
know what to suggest for that other than someone making up a bogus
panel for jacuzzi that's just for the stable channel.

Fixes: 88d3457ceb82 ("drm/panel: auo,b116xw03: fix flash backlight when power on")
Fixes: 5f04e7ce392d ("drm/panel-edp: Split eDP panels out of panel-simple")
Tested-by: Anton Bambura <jenneron@postmarketos.org>
Acked-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230925150010.1.Iff672233861bcc4cf25a7ad0a81308adc3bda8a4@changeid

drm/bridge: ti-sn65dsi86: Associate DSI device lifetime with auxiliary device

The kernel produces a warning splat and the DSI device fails to register
in this driver if the i2c driver probes, populates child auxiliary
devices, and then somewhere in ti_sn_bridge_probe() a function call
returns -EPROBE_DEFER. When the auxiliary driver probe defers, the dsi
device created by devm_mipi_dsi_device_register_full() is left
registered because the devm managed device used to manage the lifetime
of the DSI device is the parent i2c device, not the auxiliary device
that is being probed.

Associate the DSI device created and managed by this driver to the
lifetime of the auxiliary device, not the i2c device, so that the DSI
device is removed when the auxiliary driver unbinds. Similarly change
the device pointer used for dev_err_probe() so the deferred probe errors
are associated with the auxiliary device instead of the parent i2c
device so we can narrow down future problems faster.

Cc: Douglas Anderson <dianders@chromium.org>
Cc: Maxime Ripard <maxime@cerno.tech>
Fixes: c3b75d4734cb ("drm/bridge: sn65dsi86: Register and attach our DSI device at probe")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231002235407.769399-1-swboyd@chromium.org

drm/tiny: correctly print `struct resource *` on error

The `res` variable is already a `struct resource *`, don't take the address of it.

Fixes incorrect output:

simple-framebuffer 9e20dc000.framebuffer: [drm] *ERROR* could not acquire memory range [??? 0xffff4be88a387d00-0xfffffefffde0a240 flags 0x0]: -16

To be correct:

simple-framebuffer 9e20dc000.framebuffer: [drm] *ERROR* could not acquire memory range [mem 0x9e20dc000-0x9e307bfff flags 0x200]: -16

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Fixes: 9a10c7e6519b ("drm/simpledrm: Add support for system memory framebuffers")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v6.3+
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20231010174652.2439513-1-joey.gouly@arm.com

drm: Do not overrun array in drm_gem_get_pages()

If the shared memory object is larger than the DRM object that it backs,
we can overrun the page array. Limit the number of pages we install
from each folio to prevent this.

Signed-off-by: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Link: https://lore.kernel.org/lkml/13360591.uLZWGnKmhe@natalenko.name/
Fixes: 3291e09a4638 ("drm: convert drm_gem_put_pages() to use a folio_batch")
Cc: stable@vger.kernel.org # 6.5.x
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231005135648.2317298-1-willy@infradead.org

drm/atomic-helper: relax unregistered connector check

The driver might pull connectors which weren't submitted by
user-space into the atomic state. For instance,
intel_dp_mst_atomic_master_trans_check() pulls in connectors
sharing the same DP-MST stream. However, if the connector is
unregistered, this later fails with:

[ 559.425658] i915 0000:00:02.0: [drm:drm_atomic_helper_check_modeset] [CONNECTOR:378:DP-7] is not registered

Skip the unregistered connector check to allow user-space to turn
off connectors one-by-one.

See this wlroots issue:
https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3407

Previous discussion:
https://lore.kernel.org/intel-gfx/Y6GX7z17WmDSKwta@ideak-desk.fi.intel.com/

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: stable@vger.kernel.org
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231005131623.114379-1-contact@emersion.fr

drm/panel: boe-tv101wum-nl6: Completely pull GPW to VGL before TP term

The sta_himax83102 panel sometimes shows abnormally flickering
horizontal lines. The front gate output will precharge the X point of
the next pole circuit before TP(TouchPanel Enable) term starts, and wait
until the end of the TP term to resume the CLK. For this reason, the X
point must be maintained during the TP term. In abnormal case, we
measured a slight leakage at point X. This because during the TP term,
the GPW does not fully pull the VGL low, causing the TFT to not be
closed tightly.

To fix this, we completely pull GPW to VGL before entering the TP term.
This will ensure that the TFT is closed tightly and prevent the abnormal
display.

Fixes: 1bc2ef065f13 ("drm/panel: Support for Starry-himax83102-j02 TDDI MIPI-DSI panel")
Signed-off-by: Ruihai Zhou <zhouruihai@huaqin.corp-partner.google.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231007064949.22668-1-zhouruihai@huaqin.corp-partner.google.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231007064949.22668-1-zhouruihai@huaqin.corp-partner.google.com

drm/vmwgfx: Keep a gem reference to user bos in surfaces

Surfaces can be backed (i.e. stored in) memory objects (mob's) which
are created and managed by the userspace as GEM buffers. Surfaces
grab only a ttm reference which means that the gem object can
be deleted underneath us, especially in cases where prime buffer
export is used.

Make sure that all userspace surfaces which are backed by gem objects
hold a gem reference to make sure they're not deleted before vmw
surfaces are done with them, which fixes:
------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 2 PID: 2632 at lib/refcount.c:28 refcount_warn_saturate+0xfb/0x150
Modules linked in: overlay vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock snd_ens1371 snd_ac97_codec ac97_bus snd_pcm gameport>
CPU: 2 PID: 2632 Comm: vmw_ref_count Not tainted 6.5.0-rc2-vmwgfx #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
RIP: 0010:refcount_warn_saturate+0xfb/0x150
Code: eb 9e 0f b6 1d 8b 5b a6 01 80 fb 01 0f 87 ba e4 80 00 83 e3 01 75 89 48 c7 c7 c0 3c f9 a3 c6 05 6f 5b a6 01 01 e8 15 81 98 ff <0f> 0b e9 6f ff ff ff 0f b>
RSP: 0018:ffffbdc34344bba0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000027
RDX: ffff960475ea1548 RSI: 0000000000000001 RDI: ffff960475ea1540
RBP: ffffbdc34344bba8 R08: 0000000000000003 R09: 65646e75203a745f
R10: ffffffffa5b32b20 R11: 72657466612d6573 R12: ffff96037d6a6400
R13: ffff9603484805b0 R14: 000000000000000b R15: ffff9603bed06060
FS: 00007f5fd8520c40(0000) GS:ffff960475e80000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5fda755000 CR3: 000000010d012005 CR4: 00000000003706e0
Call Trace:
<TASK>
? show_regs+0x6e/0x80
? refcount_warn_saturate+0xfb/0x150
? __warn+0x91/0x150
? refcount_warn_saturate+0xfb/0x150
? report_bug+0x19d/0x1b0
? handle_bug+0x46/0x80
? exc_invalid_op+0x1d/0x80
? asm_exc_invalid_op+0x1f/0x30
? refcount_warn_saturate+0xfb/0x150
drm_gem_object_handle_put_unlocked+0xba/0x110 [drm]
drm_gem_object_release_handle+0x6e/0x80 [drm]
drm_gem_handle_delete+0x6a/0xc0 [drm]
? __pfx_vmw_bo_unref_ioctl+0x10/0x10 [vmwgfx]
vmw_bo_unref_ioctl+0x33/0x40 [vmwgfx]
drm_ioctl_kernel+0xbc/0x160 [drm]
drm_ioctl+0x2d2/0x580 [drm]
? __pfx_vmw_bo_unref_ioctl+0x10/0x10 [vmwgfx]
? do_vmi_munmap+0xee/0x180
vmw_generic_ioctl+0xbd/0x180 [vmwgfx]
vmw_unlocked_ioctl+0x19/0x20 [vmwgfx]
__x64_sys_ioctl+0x99/0xd0
do_syscall_64+0x5d/0x90
? syscall_exit_to_user_mode+0x2a/0x50
? do_syscall_64+0x6d/0x90
? handle_mm_fault+0x16e/0x2f0
? exit_to_user_mode_prepare+0x34/0x170
? irqentry_exit_to_user_mode+0xd/0x20
? irqentry_exit+0x3f/0x50
? exc_page_fault+0x8e/0x190
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f5fda51aaff
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 7>
RSP: 002b:00007ffd536a4d30 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffd536a4de0 RCX: 00007f5fda51aaff
RDX: 00007ffd536a4de0 RSI: 0000000040086442 RDI: 0000000000000003
RBP: 0000000040086442 R08: 000055fa603ada50 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffd536a51b8
R13: 0000000000000003 R14: 000055fa5ebb4c80 R15: 00007f5fda90f040
</TASK>
---[ end trace 0000000000000000 ]---

A lot of the analyis on the bug was done by Murray McAllister and
Ian Forbes.

Reported-by: Murray McAllister <murray.mcallister@gmail.com>
Cc: Ian Forbes <iforbes@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Fixes: a950b989ea29 ("drm/vmwgfx: Do not drop the reference to the handle too soon")
Cc: <stable@vger.kernel.org> # v6.2+
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230928041355.737635-1-zack@kde.org

drm/vmwgfx: fix typo of sizeof argument

Since size of 'header' pointer and '*header' structure is equal on 64-bit
machines issue probably didn't cause any wrong behavior. But anyway,
fixing typo is required.

Fixes: 7a73ba7469cb ("drm/vmwgfx: Use TTM handles instead of SIDs as user-space surface handles.")
Co-developed-by: Ivanov Mikhail <ivanov.mikhail1@huawei-partners.com>
Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230905100203.1716731-1-konstantin.meskhidze@huawei.com

dma-buf: add dma_fence_timestamp helper

When a fence signals there is a very small race window where the timestamp
isn't updated yet. sync_file solves this by busy waiting for the
timestamp to appear, but on other ocassions didn't handled this
correctly.

Provide a dma_fence_timestamp() helper function for this and use it in
all appropriate cases.

Another alternative would be to grab the spinlock when that happens.

v2 by teddy: add a wait parameter to wait for the timestamp to show up, in case
the accurate timestamp is needed and/or the timestamp is not based on
ktime (e.g. hw timestamp)
v3 chk: drop the parameter again for unified handling

Signed-off-by: Yunxiang Li <Yunxiang.Li@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: 1774baa64f93 ("drm/scheduler: Change scheduled fence track v2")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20230929104725.2358-1-christian.koenig@amd.com

drm/nouveau: exec: report max pushs through getparam

Report the maximum number of IBs that can be pushed with a single
DRM_IOCTL_NOUVEAU_EXEC through DRM_IOCTL_NOUVEAU_GETPARAM.

While the maximum number of IBs per ring might vary between chipsets,
the kernel will make sure that userspace can only push a fraction of the
maximum number of IBs per ring per job, such that we avoid a situation
where there's only a single job occupying the ring, which could
potentially lead to the ring run dry.

Using DRM_IOCTL_NOUVEAU_GETPARAM to report the maximum number of IBs
that can be pushed with a single DRM_IOCTL_NOUVEAU_EXEC implies that
all channels of a given device have the same ring size.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231002135008.10651-3-dakr@redhat.com

drm/nouveau: chan: use channel class definitions

Use channel class definitions instead of magic numbers.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231002135008.10651-2-dakr@redhat.com

drm/nouveau: chan: use struct nvif_mclass

Use actual struct nvif_mclass instead of identical anonymous struct.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231002135008.10651-1-dakr@redhat.com

drm: panel-orientation-quirks: Add quirk for One Mix 2S

The One Mix 2S is a mini laptop with a 1200x1920 portrait screen
mounted in a landscape oriented clamshell case. Because of the too
generic DMI strings this entry is also doing bios-date matching.

Signed-off-by: Kai Uwe Broulik <foss-linux@broulik.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231001114710.336172-1-foss-linux@broulik.de

drm/tests: Fix kunit_release_action ctx argument

The kunit_action_platform_driver_unregister is added with
&fake_platform_driver as ctx, but the kunit_release_action is called
pdev as ctx. Fix that by replacing it with &fake_platform_driver.

Fixes: 4f2b0b583baa ("drm/tests: helpers: Switch to kunit actions")
Signed-off-by: Arthur Grillo <arthurgrillo@riseup.net>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230920-kunit-kasan-fixes-v1-1-1a0fc261832d@riseup.net

accel/ivpu: Use cached buffers for FW loading

Create buffers with cache coherency on the CPU side (write-back) while
disabling snooping on the VPU side. These buffers require an explicit
cache flush after each CPU-side modification.

Configuring pages as write-combined may introduce significant delays,
potentially taking hundreds of milliseconds for 64 MB buffers.

Added internal DRM_IVPU_BO_NOSNOOP mask which disables snooping on the
VPU side. Allocate FW runtime memory buffer (64 MB) as cached with
snooping-disabled.

This fixes random long FW loading times and boot params memory
corruption on warmboot (due to missed wmb).

Fixes: 02d5b0aacd05 ("accel/ivpu: Implement firmware parsing and booting")
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230926120943.GD846747@linux.intel.com

accel/ivpu/40xx: Fix missing VPUIP interrupts

Move sequence of masking and unmasking global interrupts from buttress
interrupt handler to generic one that handles both VPUIP and BTRS
interrupts.

Unmasking global interrupts will re-trigger MSI for any pending interrupts.
Lack of this sequence can randomly cause to miss any VPUIP interrupt that
comes after reading VPU_40XX_HOST_SS_ICB_STATUS_0 and before clearing
all active interrupt sources.

Fixes: 79cdc56c4a54 ("accel/ivpu: Add initial support for VPU 4")
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230925121137.872158-6-stanislaw.gruszka@linux.intel.com

accel/ivpu/40xx: Disable frequency change interrupt

Do not enable frequency change interrupt on 40xx as it might
lead to an interrupt storm in current design.

FREQ_CHANGE interrupt is triggered on D0I2 entry which will cause
KMD to check VPU interrupt sources by reading VPUIP registers.
Access to those registers will toggle necessary clocks and trigger
another FREQ_CHANGE interrupt possibly ending in an infinite loop.

FREQ_CHANGE interrupt has only debug purposes and can be permanently
disabled.

Fixes: 79cdc56c4a54 ("accel/ivpu: Add initial support for VPU 4")
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230925121137.872158-5-stanislaw.gruszka@linux.intel.com

accel/ivpu/40xx: Ensure clock resource ownership Ack before Power-Up

We need to wait for the CLOCK_RESOURCE_OWN_ACK bit to be set
after configuring the workpoint. This step ensures that the VPU
microcontroller clock is actively toggling and ready for operation.

Previously, we relied solely on the READY bit in the VPU_STATUS
register, which indicated the completion of the workpoint download.
However, this approach was insufficient, as the READY bit could be set
while the device was still running on a sideband clock until the PLL
locked. To guarantee that the PLL is locked and the device is running on
the main clock source, we now wait for the CLOCK_RESOURCE_OWN_ACK before
proceeding with the remainder of the power-up sequence.

Fixes: 79cdc56c4a54 ("accel/ivpu: Add initial support for VPU 4")
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230925121137.872158-4-stanislaw.gruszka@linux.intel.com

accel/ivpu: Don't flood dmesg with VPU ready message

Use ivpu_dbg() to print the VPU ready message so it doesn't pollute
the dmesg.

Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230925121137.872158-3-stanislaw.gruszka@linux.intel.com

accel/ivpu: Do not use wait event interruptible

If we receive signal when waiting for IPC message response in
ivpu_ipc_receive() we return error and continue to operate.
Then the driver can send another IPC messages and re-use occupied
slot of the message still processed by the firmware. This can result
in corrupting firmware memory and following FW crash with messages:

[ 3698.569719] intel_vpu 0000:00:0b.0: [drm] ivpu_ipc_send_receive_internal(): IPC receive failed: type 0x1103, ret -512
[ 3698.569747] intel_vpu 0000:00:0b.0: [drm] ivpu_jsm_unregister_db(): Failed to unregister doorbell 3: -512
[ 3698.569756] intel_vpu 0000:00:0b.0: [drm] ivpu_ipc_tx_prepare(): IPC message vpu:0x88980000 not released by firmware
[ 3698.569763] intel_vpu 0000:00:0b.0: [drm] ivpu_ipc_tx_prepare(): JSM message vpu:0x88980040 not released by firmware
[ 3698.570234] intel_vpu 0000:00:0b.0: [drm] ivpu_ipc_send_receive_internal(): IPC receive failed: type 0x110e, ret -512
[ 3698.570318] intel_vpu 0000:00:0b.0: [drm] *ERROR* ivpu_mmu_dump_event(): MMU EVTQ: 0x10 (Translation fault) SSID: 0 SID: 3, e[2] 00000000, e[3] 00000208, in addr: 0x88988000, fetch addr: 0x0

To fix the issue don't use interruptible variant of wait event to
allow firmware to finish IPC processing.

Fixes: 5d7422cfb498 ("accel/ivpu: Add IPC driver and JSM messages")
Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230925121137.872158-2-stanislaw.gruszka@linux.intel.com

accel/ivpu: Add Arrow Lake pci id

Enable VPU on Arrow Lake CPUs.

Reviewed-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com>
Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230922132206.812817-1-stanislaw.gruszka@linux.intel.com

fbdev/sh7760fb: Depend on FB=y

Fix linker error if FB=m about missing fb_io_read and fb_io_write. The
linker's error message suggests that this config setting has already
been broken for other symbols.

  All errors (new ones prefixed by >>):

     sh4-linux-ld: drivers/video/fbdev/sh7760fb.o: in function `sh7760fb_probe':
     sh7760fb.c:(.text+0x374): undefined reference to `framebuffer_alloc'
     sh4-linux-ld: sh7760fb.c:(.text+0x394): undefined reference to `fb_videomode_to_var'
     sh4-linux-ld: sh7760fb.c:(.text+0x39c): undefined reference to `fb_alloc_cmap'
     sh4-linux-ld: sh7760fb.c:(.text+0x3a4): undefined reference to `register_framebuffer'
     sh4-linux-ld: sh7760fb.c:(.text+0x3ac): undefined reference to `fb_dealloc_cmap'
     sh4-linux-ld: sh7760fb.c:(.text+0x434): undefined reference to `framebuffer_release'
     sh4-linux-ld: drivers/video/fbdev/sh7760fb.o: in function `sh7760fb_remove':
     sh7760fb.c:(.text+0x800): undefined reference to `unregister_framebuffer'
     sh4-linux-ld: sh7760fb.c:(.text+0x804): undefined reference to `fb_dealloc_cmap'
     sh4-linux-ld: sh7760fb.c:(.text+0x814): undefined reference to `framebuffer_release'
  >> sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0xc): undefined reference to `fb_io_read'
  >> sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0x10): undefined reference to `fb_io_write'
     sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0x2c): undefined reference to `cfb_fillrect'
     sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0x30): undefined reference to `cfb_copyarea'
     sh4-linux-ld: drivers/video/fbdev/sh7760fb.o:(.rodata+0x34): undefined reference to `cfb_imageblit'

Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309130632.LS04CPWu-lkp@intel.com/
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918090400.13264-1-tzimmermann@suse.de

drm/virtio: clean out_fence on complete_submit

The removed line prevents the following cleanup function
to execute a dma_fence_put on the out_fence to free its
memory, producing the following output in kmemleak:

unreferenced object 0xffff888126d8ee00 (size 128):
  comm "kwin_wayland", pid 981, jiffies 4295380296 (age 390.060s)
  hex dump (first 32 bytes):
    c8 a1 c2 27 81 88 ff ff e0 14 a9 c0 ff ff ff ff  ...'............
    30 1a e1 2e a6 00 00 00 28 fc 5b 17 81 88 ff ff  0.......(.[.....
  backtrace:
    [<0000000011655661>] kmalloc_trace+0x26/0xa0
    [<0000000055f15b82>] virtio_gpu_fence_alloc+0x47/0xc0 [virtio_gpu]
    [<00000000fa6d96f9>] virtio_gpu_execbuffer_ioctl+0x1a8/0x800 [virtio_gpu]
    [<00000000e6cb5105>] drm_ioctl_kernel+0x169/0x240 [drm]
    [<000000005ad33e27>] drm_ioctl+0x399/0x6b0 [drm]
    [<00000000a19dbf65>] __x64_sys_ioctl+0xc5/0x100
    [<0000000011fa801e>] do_syscall_64+0x5b/0xc0
    [<0000000065c76d8a>] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
unreferenced object 0xffff888121930500 (size 128):
  comm "kwin_wayland", pid 981, jiffies 4295380313 (age 390.096s)
  hex dump (first 32 bytes):
    c8 a1 c2 27 81 88 ff ff e0 14 a9 c0 ff ff ff ff  ...'............
    f9 ec d7 2f a6 00 00 00 28 fc 5b 17 81 88 ff ff  .../....(.[.....
  backtrace:
    [<0000000011655661>] kmalloc_trace+0x26/0xa0
    [<0000000055f15b82>] virtio_gpu_fence_alloc+0x47/0xc0 [virtio_gpu]
    [<00000000fa6d96f9>] virtio_gpu_execbuffer_ioctl+0x1a8/0x800 [virtio_gpu]
    [<00000000e6cb5105>] drm_ioctl_kernel+0x169/0x240 [drm]
    [<000000005ad33e27>] drm_ioctl+0x399/0x6b0 [drm]
    [<00000000a19dbf65>] __x64_sys_ioctl+0xc5/0x100
    [<0000000011fa801e>] do_syscall_64+0x5b/0xc0
    [<0000000065c76d8a>] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[...]

This memleak will grow quickly, being possible to see the
following line in dmesg after few minutes of life in the
virtual machine:

[  706.217388] kmemleak: 10731 new suspected memory leaks (see /sys/kernel/debug/kmemleak)

The patch will remove the line to allow the cleanup
function do its job.

Signed-off-by: José Pekkarinen <jose.pekkarinen@foxhound.fi>
Fixes: e4812ab8e6b1 ("drm/virtio: Refactor and optimize job submission code path")
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230912060824.5210-1-jose.pekkarinen@foxhound.fi

drm/meson: fix memory leak on ->hpd_notify callback

The EDID returned by drm_bridge_get_edid() needs to be freed.

Fixes: 0af5e0b41110 ("drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR")
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: stable@vger.kernel.org # v5.17+
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230914131015.2472029-1-jani.nikula@intel.com

accel/ivpu/40xx: Fix buttress interrupt handling

Buttress spec requires that the interrupt status is cleared at
the source first (before clearing MTL_BUTTRESS_INTERRUPT_STAT),
that implies that we have to mask out the global interrupt while
handling buttress interrupts.

Fixes: 79cdc56c4a54 ("accel/ivpu: Add initial support for VPU 4")
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230822095238.3722815-1-stanislaw.gruszka@linux.intel.com

nouveau/u_memcpya: fix NULL vs error pointer bug

The u_memcpya() function is supposed to return error pointers on
error. Returning NULL will lead to an Oops.

Fixes: e3885f712134 ("nouveau/u_memcpya: use vmemdup_user")
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/10fd258b-466f-4c5b-9d48-fe61a3f21424@moroto.mountain

nouveau/u_memcpya: use vmemdup_user

I think there are limit checks in place for most things but the
new uAPI wants to not have them.

Add a limit check and use the vmemdup_user helper instead.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230810185020.231135-1-airlied@gmail.com

drm/nouveau: sched: fix leaking memory of timedout job

Always stop and re-start the scheduler in order to let the scheduler
free up the timedout job in case it got signaled. In case of exec jobs
the job type specific callback will take care to signal all fences and
tear down the channel.

Fixes: b88baab82871 ("drm/nouveau: implement new VM_BIND uAPI")
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230916162835.5719-1-dakr@redhat.com

drm/nouveau: fence: fix type cast warning in nouveau_fence_emit()

Fix the following warning.

  drivers/gpu/drm/nouveau/nouveau_fence.c:210:45: sparse: sparse:
  incorrect type in initializer (different address spaces)
  @@     expected struct nouveau_channel *chan
  @@     got struct nouveau_channel [noderef] __rcu *channel

We're just about to emit the fence, there is nothing to protect against
yet, hence it is safe to just cast __rcu away.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309140340.BwKXzaDx-lkp@intel.com/
Fixes: 978474dc8278 ("drm/nouveau: fence: fix undefined fence state after emit")
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230916011501.15813-1-dakr@redhat.com

drm: fix up fbdev Kconfig defaults

As a result of the recent Kconfig reworks, the default settings for the
framebuffer interfaces changed in unexpected ways:

Configurations that leave CONFIG_FB disabled but use DRM now get
DRM_FBDEV_EMULATION by default. This also turns on the deprecated /dev/fb
device nodes for machines that don't actually want it.

In turn, configurations that previously had DRM_FBDEV_EMULATION enabled
now only get the /dev/fb front-end but not the more useful framebuffer
console, which is not selected any more.

We had previously decided that any combination of the three frontends
(FB_DEVICE, FRAMEBUFFER_CONSOLE and LOGO) should be selectable, but the
new default settings mean that a lot of defconfig files would have to
get adapted.

Change the defaults back to what they were in Linux 6.5:

- Leave DRM_FBDEV_EMULATION turned off unless CONFIG_FB
   is enabled. Previously this was a hard dependency but now the two are
   independent. However, configurations that enable CONFIG_FB probably
   also want to keep the emulation for DRM, while those without FB
   presumably did that intentionally in the past.

- Leave FB_DEVICE turned off for FB=n. Following the same
   logic, the deprecated option should not automatically get enabled
   here, most users that had FB turned off in the past do not want it,
   even if they want the console

- Turn the FRAMEBUFFER_CONSOLE option on if
   DRM_FBDEV_EMULATION is set to avoid having to change defconfig
   files that relied on it being selected unconditionally in the past.
   This also makes sense since both LOGO and FB_DEVICE are now disabled
   by default for builds without CONFIG_FB, but DRM_FBDEV_EMULATION
   would make no sense if all three are disabled.

Fixes: a5ae331edb02b ("drm: Drop select FRAMEBUFFER_CONSOLE for DRM_FBDEV_EMULATION")
Fixes: 701d2054fa317 ("fbdev: Make support for userspace interfaces configurable")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230911205338.2385278-1-arnd@kernel.org

drm/tests: Fix incorrect argument in drm_test_mm_insert_range

While drm_mm test was converted form igt selftest to kunit, unexpected
value of "end" argument equal "start" was introduced to one of calls to a
function that executes the drm_test_mm_insert_range for specific start/end
pair of arguments. As a consequence, DRM_MM_BUG_ON(end <= start) is
triggered. Fix it by restoring the original value.

Fixes: fc8d29e298cf ("drm: selftest: convert drm_mm selftest to KUnit")
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Cc: "Maíra Canal" <mairacanal@riseup.net>
Cc: Arthur Grillo <arthurgrillo@riseup.net>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Daniel Latypov <dlatypov@google.com>
Cc: stable@vger.kernel.org # v6.1+
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230911130323.7037-2-janusz.krzysztofik@linux.intel.com

drm/tests: helpers: Avoid a driver uaf

when using __drm_kunit_helper_alloc_drm_device() the driver may be
dereferenced by device-managed resources up until the device is
freed, which is typically later than the kunit-managed resource code
frees it. Fix this by simply make the driver device-managed as well.

In short, the sequence leading to the UAF is as follows:

INIT:
Code allocates a struct device as a kunit-managed resource.
Code allocates a drm driver as a kunit-managed resource.
Code allocates a drm device as a device-managed resource.

EXIT:
Kunit resource cleanup frees the drm driver
Kunit resource cleanup puts the struct device, which starts a
      device-managed resource cleanup
device-managed cleanup calls drm_dev_put()
drm_dev_put() dereferences the (now freed) drm driver -> Boom.

Related KASAN message:
[55272.551542] ==================================================================
[55272.551551] BUG: KASAN: slab-use-after-free in drm_dev_put.part.0+0xd4/0xe0 [drm]
[55272.551603] Read of size 8 at addr ffff888127502828 by task kunit_try_catch/10353

[55272.551612] CPU: 4 PID: 10353 Comm: kunit_try_catch Tainted: G     U           N 6.5.0-rc7+ #155
[55272.551620] Hardware name: ASUS System Product Name/PRIME B560M-A AC, BIOS 0403 01/26/2021
[55272.551626] Call Trace:
[55272.551629]  <TASK>
[55272.551633]  dump_stack_lvl+0x57/0x90
[55272.551639]  print_report+0xcf/0x630
[55272.551645]  ? _raw_spin_lock_irqsave+0x5f/0x70
[55272.551652]  ? drm_dev_put.part.0+0xd4/0xe0 [drm]
[55272.551694]  kasan_report+0xd7/0x110
[55272.551699]  ? drm_dev_put.part.0+0xd4/0xe0 [drm]
[55272.551742]  drm_dev_put.part.0+0xd4/0xe0 [drm]
[55272.551783]  devres_release_all+0x15d/0x1f0
[55272.551790]  ? __pfx_devres_release_all+0x10/0x10
[55272.551797]  device_unbind_cleanup+0x16/0x1a0
[55272.551802]  device_release_driver_internal+0x3e5/0x540
[55272.551808]  ? kobject_put+0x5d/0x4b0
[55272.551814]  bus_remove_device+0x1f1/0x3f0
[55272.551819]  device_del+0x342/0x910
[55272.551826]  ? __pfx_device_del+0x10/0x10
[55272.551830]  ? lock_release+0x339/0x5e0
[55272.551836]  ? kunit_remove_resource+0x128/0x290 [kunit]
[55272.551845]  ? __pfx_lock_release+0x10/0x10
[55272.551851]  platform_device_del.part.0+0x1f/0x1e0
[55272.551856]  ? _raw_spin_unlock_irqrestore+0x30/0x60
[55272.551863]  kunit_remove_resource+0x195/0x290 [kunit]
[55272.551871]  ? _raw_spin_unlock_irqrestore+0x30/0x60
[55272.551877]  kunit_cleanup+0x78/0x120 [kunit]
[55272.551885]  ? __kthread_parkme+0xc1/0x1f0
[55272.551891]  ? __pfx_kunit_try_run_case_cleanup+0x10/0x10 [kunit]
[55272.551900]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [kunit]
[55272.551909]  kunit_generic_run_threadfn_adapter+0x4a/0x90 [kunit]
[55272.551919]  kthread+0x2e7/0x3c0
[55272.551924]  ? __pfx_kthread+0x10/0x10
[55272.551929]  ret_from_fork+0x2d/0x70
[55272.551935]  ? __pfx_kthread+0x10/0x10
[55272.551940]  ret_from_fork_asm+0x1b/0x30
[55272.551948]  </TASK>

[55272.551953] Allocated by task 10351:
[55272.551956]  kasan_save_stack+0x1c/0x40
[55272.551962]  kasan_set_track+0x21/0x30
[55272.551966]  __kasan_kmalloc+0x8b/0x90
[55272.551970]  __kmalloc+0x5e/0x160
[55272.551976]  kunit_kmalloc_array+0x1c/0x50 [kunit]
[55272.551984]  drm_exec_test_init+0xfa/0x2c0 [drm_exec_test]
[55272.551991]  kunit_try_run_case+0xdd/0x250 [kunit]
[55272.551999]  kunit_generic_run_threadfn_adapter+0x4a/0x90 [kunit]
[55272.552008]  kthread+0x2e7/0x3c0
[55272.552012]  ret_from_fork+0x2d/0x70
[55272.552017]  ret_from_fork_asm+0x1b/0x30

[55272.552024] Freed by task 10353:
[55272.552027]  kasan_save_stack+0x1c/0x40
[55272.552032]  kasan_set_track+0x21/0x30
[55272.552036]  kasan_save_free_info+0x27/0x40
[55272.552041]  __kasan_slab_free+0x106/0x180
[55272.552046]  slab_free_freelist_hook+0xb3/0x160
[55272.552051]  __kmem_cache_free+0xb2/0x290
[55272.552056]  kunit_remove_resource+0x195/0x290 [kunit]
[55272.552064]  kunit_cleanup+0x78/0x120 [kunit]
[55272.552072]  kunit_generic_run_threadfn_adapter+0x4a/0x90 [kunit]
[55272.552080]  kthread+0x2e7/0x3c0
[55272.552085]  ret_from_fork+0x2d/0x70
[55272.552089]  ret_from_fork_asm+0x1b/0x30

[55272.552096] The buggy address belongs to the object at ffff888127502800
                which belongs to the cache kmalloc-512 of size 512
[55272.552105] The buggy address is located 40 bytes inside of
                freed 512-byte region [ffff888127502800, ffff888127502a00)

[55272.552115] The buggy address belongs to the physical page:
[55272.552119] page:00000000af6c70ff refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x127500
[55272.552127] head:00000000af6c70ff order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[55272.552133] anon flags: 0x17ffffc0010200(slab|head|node=0|zone=2|lastcpupid=0x1fffff)
[55272.552141] page_type: 0xffffffff()
[55272.552145] raw: 0017ffffc0010200 ffff888100042c80 0000000000000000 dead000000000001
[55272.552152] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
[55272.552157] page dumped because: kasan: bad access detected

[55272.552163] Memory state around the buggy address:
[55272.552167]  ffff888127502700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[55272.552173]  ffff888127502780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[55272.552178] >ffff888127502800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[55272.552184]                                   ^
[55272.552187]  ffff888127502880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[55272.552193]  ffff888127502900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[55272.552198] ==================================================================
[55272.552203] Disabling lock debugging due to kernel taint

v2:
- Update commit message, add Fixes: tag and Cc stable.
v3:
- Further commit message updates (Maxime Ripard).

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: stable@vger.kernel.org # v6.3+
Fixes: d98780310719 ("drm/tests: helpers: Allow to pass a custom drm_driver")
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230907135339.7971-2-thomas.hellstrom@linux.intel.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>

Revert "drm/vkms: Fix race-condition between the hrtimer and the atomic commit"

This reverts commit a0e6a017ab56936c0405fe914a793b241ed25ee0.

Unlocking a mutex in the context of a hrtimer callback is violating mutex
locking rules, as mutex_unlock() from interrupt context is not permitted.

Link: https://lore.kernel.org/dri-devel/ZQLAc%2FFwkv%2FGiVoK@phenom.ffwll.local/T/#t
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230914102024.1789154-1-mcanal@igalia.com

Merge drm/drm-fixes into drm-misc-fixes

Forwarding to v6.6-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge tag 'drm-misc-next-fixes-2023-09-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Short summary of fixes pull:

* nouveau: Lockdep workaround
* fbdev/g364fb: Build fix

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230911141915.GA983@linux-uq9g

Linux 6.6-rc1

Merge tag 'topic/drm-ci-2023-08-31-1' of git://anongit.freedesktop.org/drm/drm

Pull drm ci scripts from Dave Airlie:
"This is a bunch of ci integration for the freedesktop gitlab instance
  where we currently do upstream userspace testing on diverse sets of
  GPU hardware. From my perspective I think it's an experiment worth
  going with and seeing how the benefits/noise playout keeping these
  files useful.

  Ideally I'd like to get this so we can do pre-merge testing on PRs
  eventually.

  Below is some info from danvet on why we've ended up making the
  decision and how we can roll it back if we decide it was a bad plan.

  Why in upstream?

   - like documentation, testcases, tools CI integration is one of these
     things where you can waste endless amounts of time if you
     accidentally have a version that doesn't match your source code

   - but also like the above, there's a balance, this is the initial cut
     of what we think makes sense to keep in sync vs out-of-tree,
     probably needs adjustment

   - gitlab supports out-of-repo gitlab integration and that's what's
     been used for the kernel in drm, but it results in per-driver
     fragmentation and lots of duplicated effort. the simple act of
     smashing an arbitrary winner into a topic branch already started
     surfacing patches on dri-devel and sparking good cross driver team
     discussions

  Why gitlab?

   - it's not any more shit than any of the other CI

   - drm userspace uses it extensively for everything in userspace, we
     have a lot of people and experience with this, including
     integration of hw testing labs

   - media userspace like gstreamer is also on gitlab.fd.o, and there's
     discussion to extend this to the media subsystem in some fashion

  Can this be shared?

   - there's definitely a pile of code that could move to scripts/ if
     other subsystem adopt ci integration in upstream kernel git. other
     bits are more drm/gpu specific like the igt-gpu-tests/tools
     integration

   - docker images can be run locally or in other CI runners

  Will we regret this?

   - it's all in one directory, intentionally, for easy deletion

   - probably 1-2 years in upstream to see whether this is worth it or a
     Big Mistake. that's roughly what it took to _really_ roll out solid
     CI in the bigger userspace projects we have on gitlab.fd.o like
     mesa3d"

* tag 'topic/drm-ci-2023-08-31-1' of git://anongit.freedesktop.org/drm/drm:
  drm: ci: docs: fix build warning - add missing escape
  drm: Add initial ci/ subdirectory

Merge tag 'x86-urgent-2023-09-10' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
"Fix preemption delays in the SGX code, remove unnecessarily
  UAPI-exported code, fix a ld.lld linker (in)compatibility quirk and
  make the x86 SMP init code a bit more conservative to fix kexec()
  lockups"

* tag 'x86-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Break up long non-preemptible delays in sgx_vepc_release()
  x86: Remove the arch_calc_vm_prot_bits() macro from the UAPI
  x86/build: Fix linker fill bytes quirk/incompatibility for ld.lld
  x86/smp: Don't send INIT to non-present and non-booted CPUs

Merge tag 'perf-urgent-2023-09-10' of git://git./linux/kernel/git/tip/tip

Pull x86 perf event fix from Ingo Molnar:
"Work around a firmware bug in the uncore PMU driver, affecting certain
Intel systems"

* tag 'perf-urgent-2023-09-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/uncore: Correct the number of CHAs on EMR

Merge tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git./linux/kernel/git/perf/perf-tools

Pull perf tools updates from Arnaldo Carvalho de Melo:
"perf tools maintainership:

   - Add git information for perf-tools and perf-tools-next trees and
     branches to the MAINTAINERS file. That is where development now
     takes place and myself and Namhyung Kim have write access, more
     people to come as we emulate other maintainer groups.

  perf record:

   - Record kernel data maps when 'perf record --data' is used, so that
     global variables can be resolved and used in tools that do data
     profiling.

  perf trace:

   - Remove the old, experimental support for BPF events in which a .c
     file was passed as an event: "perf trace -e hello.c" to then get
     compiled and loaded.

     The only known usage for that, that shipped with the kernel as an
     example for such events, augmented the raw_syscalls tracepoints and
     was converted to a libbpf skeleton, reusing all the user space
     components and the BPF code connected to the syscalls.

     In the end just the way to glue the BPF part and the user space
     type beautifiers changed, now being performed by libbpf skeletons.

     The next step is to use BTF to do pretty printing of all syscall
     types, as discussed with Alan Maguire and others.

     Now, on a perf built with BUILD_BPF_SKEL=1 we get most if not all
     path/filenames/strings, some of the networking data structures,
     perf_event_attr, etc, i.e. systemwide tracing of nanosleep calls
     and perf_event_open syscalls while 'perf stat' runs 'sleep' for 5
     seconds:

      # perf trace -a -e *nanosleep,perf* perf stat -e cycles,instructions sleep 5
         0.000 (   9.034 ms): perf/327641 perf_event_open(attr_uptr: { type: 0 (PERF_TYPE_HARDWARE), size: 136, config: 0 (PERF_COUNT_HW_CPU_CYCLES), sample_type: IDENTIFIER, read_format: TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING, disabled: 1, inherit: 1, enable_on_exec: 1, exclude_guest: 1 }, pid: 327642 (perf), cpu: -1, group_fd: -1, flags: FD_CLOEXEC) = 3
         9.039 (   0.006 ms): perf/327641 perf_event_open(attr_uptr: { type: 0 (PERF_TYPE_HARDWARE), size: 136, config: 0x1 (PERF_COUNT_HW_INSTRUCTIONS), sample_type: IDENTIFIER, read_format: TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING, disabled: 1, inherit: 1, enable_on_exec: 1, exclude_guest: 1 }, pid: 327642 (perf-exec), cpu: -1, group_fd: -1, flags: FD_CLOEXEC) = 4
             ? (           ): gpm/991  ... [continued]: clock_nanosleep())               = 0
        10.133 (           ): sleep/327642 clock_nanosleep(rqtp: { .tv_sec: 5, .tv_nsec: 0 }, rmtp: 0x7ffd36f83ed0) ...
             ? (           ): pool-gsd-smart/3051  ... [continued]: clock_nanosleep())   = 0
        30.276 (           ): gpm/991 clock_nanosleep(rqtp: { .tv_sec: 2, .tv_nsec: 0 }, rmtp: 0x7ffcc6f73710) ...
       223.215 (1000.430 ms): pool-gsd-smart/3051 clock_nanosleep(rqtp: { .tv_sec: 1, .tv_nsec: 0 }, rmtp: 0x7f6e7fffec90) = 0
        30.276 (2000.394 ms): gpm/991  ... [continued]: clock_nanosleep())               = 0
      1230.814 (           ): pool-gsd-smart/3051 clock_nanosleep(rqtp: { .tv_sec: 1, .tv_nsec: 0 }, rmtp: 0x7f6e7fffec90) ...
      1230.814 (1000.404 ms): pool-gsd-smart/3051  ... [continued]: clock_nanosleep())   = 0
      2030.886 (           ): gpm/991 clock_nanosleep(rqtp: { .tv_sec: 2, .tv_nsec: 0 }, rmtp: 0x7ffcc6f73710) ...
      2237.709 (1000.153 ms): pool-gsd-smart/3051 clock_nanosleep(rqtp: { .tv_sec: 1, .tv_nsec: 0 }, rmtp: 0x7f6e7fffec90) = 0
             ? (           ): crond/1172  ... [continued]: clock_nanosleep())            = 0
      3242.699 (           ): pool-gsd-smart/3051 clock_nanosleep(rqtp: { .tv_sec: 1, .tv_nsec: 0 }, rmtp: 0x7f6e7fffec90) ...
      2030.886 (2000.385 ms): gpm/991  ... [continued]: clock_nanosleep())               = 0
      3728.078 (           ): crond/1172 clock_nanosleep(rqtp: { .tv_sec: 60, .tv_nsec: 0 }, rmtp: 0x7ffe0971dcf0) ...
      3242.699 (1000.158 ms): pool-gsd-smart/3051  ... [continued]: clock_nanosleep())   = 0
      4031.409 (           ): gpm/991 clock_nanosleep(rqtp: { .tv_sec: 2, .tv_nsec: 0 }, rmtp: 0x7ffcc6f73710) ...
        10.133 (5000.375 ms): sleep/327642  ... [continued]: clock_nanosleep())          = 0

      Performance counter stats for 'sleep 5':

             2,617,347      cycles
             1,855,997      instructions                     #    0.71  insn per cycle

           5.002282128 seconds time elapsed

           0.000855000 seconds user
           0.000852000 seconds sys

  perf annotate:

   - Building with binutils' libopcode now is opt-in (BUILD_NONDISTRO=1)
     for licensing reasons, and we missed a build test on
     tools/perf/tests makefile.

     Since we now default to NDEBUG=1, we ended up segfaulting when
     building with BUILD_NONDISTRO=1 because a needed initialization
     routine was being "error checked" via an assert.

     Fix it by explicitly checking the result and aborting instead if it
     fails.

     We better back propagate the error, but at least 'perf annotate' on
     samples collected for a BPF program is back working when perf is
     built with BUILD_NONDISTRO=1.

  perf report/top:

   - Add back TUI hierarchy mode header, that is seen when using 'perf
     report/top --hierarchy'.

   - Fix the number of entries for 'e' key in the TUI that was
     preventing navigation of lines when expanding an entry.

  perf report/script:

   - Support cross platform register handling, allowing a perf.data file
     collected on one architecture to have registers sampled correctly
     displayed when analysis tools such as 'perf report' and 'perf
     script' are used on a different architecture.

   - Fix handling of event attributes in pipe mode, i.e. when one uses:

   perf record -o - | perf report -i -

     When no perf.data files are used.

   - Handle files generated via pipe mode with a version of perf and
     then read also via pipe mode with a different version of perf,
     where the event attr record may have changed, use the record size
     field to properly support this version mismatch.

  perf probe:

   - Accessing global variables from uprobes isn't supported, make the
     error message state that instead of stating that some minimal
     kernel version is needed to have that feature. This seems just a
     tool limitation, the kernel probably has all that is needed.

  perf tests:

   - Fix a reference count related leak in the dlfilter v0 API where the
     result of a thread__find_symbol_fb() is not matched with an
     addr_location__exit() to drop the reference counts of the resolved
     components (machine, thread, map, symbol, etc). Add a dlfilter test
     to make sure that doesn't regresses.

   - Lots of fixes for the 'perf test' written in shell script related
     to problems found with the shellcheck utility.

   - Fixes for 'perf test' shell scripts testing features enabled when
     perf is built with BUILD_BPF_SKEL=1, such as 'perf stat' bpf
     counters.

   - Add perf record sample filtering test, things like the following
     example, that gets implemented as a BPF filter attached to the
     event:

       # perf record -e task-clock -c 10000 --filter 'ip < 0xffffffff00000000'

   - Improve the way the task_analyzer test checks if libtraceevent is
     linked, using 'perf version --build-options' instead of the more
     expensinve 'perf record -e "sched:sched_switch"'.

   - Add support for riscv in the mmap-basic test. (This went as well
     via the RiscV tree, same contents).

  libperf:

   - Implement riscv mmap support (This went as well via the RiscV tree,
     same contents).

  perf script:

   - New tool that converts perf.data files to the firefox profiler
     format so that one can use the visualizer at
     https://profiler.firefox.com/. Done by Anup Sharma as part of this
     year's Google Summer of Code.

     One can generate the output and upload it to the web interface but
     Anup also automated everything:

       perf script gecko -F 99 -a sleep 60

   - Support syscall name parsing on arm64.

   - Print "cgroup" field on the same line as "comm".

  perf bench:

   - Add new 'uprobe' benchmark to measure the overhead of uprobes
     with/without BPF programs attached to it.

   - breakpoints are not available on power9, skip that test.

  perf stat:

   - Add #num_cpus_online literal to be used in 'perf stat' metrics, and
     add this extra 'perf test' check that exemplifies its purpose:

   TEST_ASSERT_VAL("#num_cpus_online",
                         expr__parse(&num_cpus_online, ctx, "#num_cpus_online") == 0);
   TEST_ASSERT_VAL("#num_cpus", expr__parse(&num_cpus, ctx, "#num_cpus") == 0);
   TEST_ASSERT_VAL("#num_cpus >= #num_cpus_online", num_cpus >= num_cpus_online);

  Miscellaneous:

   - Improve tool startup time by lazily reading PMU, JSON, sysfs data.

   - Improve error reporting in the parsing of events, passing YYLTYPE
     to error routines, so that the output can show were the parsing
     error was found.

   - Add 'perf test' entries to check the parsing of events
     improvements.

   - Fix various leak for things detected by -fsanitize=address, mostly
     things that would be freed at tool exit, including:

       - Free evsel->filter on the destructor.

       - Allow tools to register a thread->priv destructor and use it in
         'perf trace'.

       - Free evsel->priv in 'perf trace'.

       - Free string returned by synthesize_perf_probe_point() when the
         caller fails to do all it needs.

   - Adjust various compiler options to not consider errors some
     warnings when building with broken headers found in things like
     python, flex, bison, as we otherwise build with -Werror. Some for
     gcc, some for clang, some for some specific version of those, some
     for some specific version of flex or bison, or some specific
     combination of these components, bah.

   - Allow customization of clang options for BPF target, this helps
     building on gentoo where there are other oddities where BPF targets
     gets passed some compiler options intended for the native build, so
     building with WERROR=0 helps while these oddities are fixed.

   - Dont pass ERR_PTR() values to perf_session__delete() in 'perf top'
     and 'perf lock', fixing some segfaults when handling some odd
     failures.

   - Add LTO build option.

   - Fix format of unordered lists in the perf docs
     (tools/perf/Documentation)

   - Overhaul the bison files, using constructs such as YYNOMEM.

   - Remove unused tokens from the bison .y files.

   - Add more comments to various structs.

   - A few LoongArch enablement patches.

  Vendor events (JSON):

   - Add JSON metrics for Yitian 710 DDR (aarch64). Things like:

   EventName, BriefDescription
   visible_window_limit_reached_rd, "At least one entry in read queue reaches the visible window limit.",
   visible_window_limit_reached_wr, "At least one entry in write queue reaches the visible window limit.",
   op_is_dqsosc_mpc        , "A DQS Oscillator MPC command to DRAM.",
   op_is_dqsosc_mrr        , "A DQS Oscillator MRR command to DRAM.",
   op_is_tcr_mrr        , "A Temperature Compensated Refresh(TCR) MRR command to DRAM.",

   - Add AmpereOne metrics (aarch64).

   - Update N2 and V2 metrics (aarch64) and events using Arm telemetry
     repo.

   - Update scale units and descriptions of common topdown metrics on
     aarch64. Things like:
       - "MetricExpr": "stall_slot_frontend / (#slots * cpu_cycles)",
       - "BriefDescription": "Frontend bound L1 topdown metric",
       + "MetricExpr": "100 * (stall_slot_frontend / (#slots * cpu_cycles))",
       + "BriefDescription": "This metric is the percentage of total slots that were stalled due to resource constraints in the frontend of the processor.",

   - Update events for intel: meteorlake to 1.04, sapphirerapids to
     1.15, Icelake+ metric constraints.

   - Update files for the power10 platform"

* tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (217 commits)
  perf parse-events: Fix driver config term
  perf parse-events: Fixes relating to no_value terms
  perf parse-events: Fix propagation of term's no_value when cloning
  perf parse-events: Name the two term enums
  perf list: Don't print Unit for "default_core"
  perf vendor events intel: Fix modifier in tma_info_system_mem_parallel_reads for skylake
  perf dlfilter: Avoid leak in v0 API test use of resolve_address()
  perf metric: Add #num_cpus_online literal
  perf pmu: Remove str from perf_pmu_alias
  perf parse-events: Make common term list to strbuf helper
  perf parse-events: Minor help message improvements
  perf pmu: Avoid uninitialized use of alias->str
  perf jevents: Use "default_core" for events with no Unit
  perf test stat_bpf_counters_cgrp: Enhance perf stat cgroup BPF counter test
  perf test shell stat_bpf_counters: Fix test on Intel
  perf test shell record_bpf_filter: Skip 6.2 kernel
  libperf: Get rid of attr.id field
  perf tools: Convert to perf_record_header_attr_id()
  libperf: Add perf_record_header_attr_id()
  perf tools: Handle old data in PERF_RECORD_ATTR
  ...

Merge tag '6.6-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

- six smb3 client fixes including ones to allow controlling smb3
   directory caching timeout and limits, and one debugging improvement

- one fix for nls Kconfig (don't need to expose NLS_UCS2_UTILS option)

- one minor spnego registry update

* tag '6.6-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  spnego: add missing OID to oid registry
  smb3: fix minor typo in SMB2_GLOBAL_CAP_LARGE_MTU
  cifs: update internal module version number for cifs.ko
  smb3: allow controlling maximum number of cached directories
  smb3: add trace point for queryfs (statfs)
  nls: Hide new NLS_UCS2_UTILS
  smb3: allow controlling length of time directory entries are cached with dir leases
  smb: propagate error code of extract_sharename()

iov_iter: Kunit tests for page extraction

Add some kunit tests for page extraction for ITER_BVEC, ITER_KVEC and
ITER_XARRAY type iterators. ITER_UBUF and ITER_IOVEC aren't dealt with
as they require userspace VM interaction. ITER_DISCARD isn't dealt with
either as that can't be extracted.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

iov_iter: Kunit tests for copying to/from an iterator

Add some kunit tests for page extraction for ITER_BVEC, ITER_KVEC and
ITER_XARRAY type iterators. ITER_UBUF and ITER_IOVEC aren't dealt with
as they require userspace VM interaction. ITER_DISCARD isn't dealt with
either as that does nothing.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

iov_iter: Fix iov_iter_extract_pages() with zero-sized entries

iov_iter_extract_pages() doesn't correctly handle skipping over initial
zero-length entries in ITER_KVEC and ITER_BVEC-type iterators.

The problem is that it accidentally reduces maxsize to 0 when it
skipping and thus runs to the end of the array and returns 0.

Fix this by sticking the calculated size-to-copy in a new variable
rather than back in maxsize.

Fixes: 7d58fe731028 ("iov_iter: Add a function to extract a page list from an iterator")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'sh-for-v6.6-tag1' of git://git./linux/kernel/git/glaubitz/sh-linux

Pull sh updates from Adrian Glaubitz:

- Fix a use-after-free bug in the push-switch driver (Duoming Zhou)

- Fix calls to dma_declare_coherent_memory() that incorrectly passed
   the buffer end address instead of the buffer size as the size
   parameter

* tag 'sh-for-v6.6-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
  sh: push-switch: Reorder cleanup operations to avoid use-after-free bug
  sh: boards: Fix CEU buffer size passed to dma_declare_coherent_memory()

Merge tag 'riscv-for-linus-6.6-mw2-2' of git://git./linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:

- The kernel now dynamically probes for misaligned access speed, as
   opposed to relying on a table of known implementations.

- Support for non-coherent devices on systems using the Andes AX45MP
   core, including the RZ/Five SoCs.

- Support for the V extension in ptrace(), again.

- Support for KASLR.

- Support for the BPF prog pack allocator in RISC-V.

- A handful of bug fixes and cleanups.

* tag 'riscv-for-linus-6.6-mw2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (25 commits)
  soc: renesas: Kconfig: For ARCH_R9A07G043 select the required configs if dependencies are met
  riscv: Kconfig.errata: Add dependency for RISCV_SBI in ERRATA_ANDES config
  riscv: Kconfig.errata: Drop dependency for MMU in ERRATA_ANDES_CMO config
  riscv: Kconfig: Select DMA_DIRECT_REMAP only if MMU is enabled
  bpf, riscv: use prog pack allocator in the BPF JIT
  riscv: implement a memset like function for text
  riscv: extend patch_text_nosync() for multiple pages
  bpf: make bpf_prog_pack allocator portable
  riscv: libstub: Implement KASLR by using generic functions
  libstub: Fix compilation warning for rv32
  arm64: libstub: Move KASLR handling functions to kaslr.c
  riscv: Dump out kernel offset information on panic
  riscv: Introduce virtual kernel mapping KASLR
  RISC-V: Add ptrace support for vectors
  soc: renesas: Kconfig: Select the required configs for RZ/Five SoC
  cache: Add L2 cache management for Andes AX45MP RISC-V core
  dt-bindings: cache: andestech,ax45mp-cache: Add DT binding documentation for L2 cache controller
  riscv: mm: dma-noncoherent: nonstandard cache operations support
  riscv: errata: Add Andes alternative ports
  riscv: asm: vendorid_list: Add Andes Technology to the vendors list
  ...

sh: push-switch: Reorder cleanup operations to avoid use-after-free bug

The original code puts flush_work() before timer_shutdown_sync()
in switch_drv_remove(). Although we use flush_work() to stop
the worker, it could be rescheduled in switch_timer(). As a result,
a use-after-free bug can occur. The details are shown below:

      (cpu 0)                    |      (cpu 1)
switch_drv_remove()              |
flush_work()                    |
  ...                            |  switch_timer // timer
                                 |   schedule_work(&psw->work)
timer_shutdown_sync()           |
...                             |  switch_work_handler // worker
kfree(psw) // free              |
                                 |   psw->state = 0 // use

This patch puts timer_shutdown_sync() before flush_work() to
mitigate the bugs. As a result, the worker and timer will be
stopped safely before the deallocate operations.

Fixes: 9f5e8eee5cfe ("sh: generic push-switch framework.")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20230802033737.9738-1-duoming@zju.edu.cn
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

sh: boards: Fix CEU buffer size passed to dma_declare_coherent_memory()

In all these cases, the last argument to dma_declare_coherent_memory() is
the buffer end address, but the expected value should be the size of the
reserved region.

Fixes: 39fb993038e1 ("media: arch: sh: ap325rxa: Use new renesas-ceu camera driver")
Fixes: c2f9b05fd5c1 ("media: arch: sh: ecovec: Use new renesas-ceu camera driver")
Fixes: f3590dc32974 ("media: arch: sh: kfr2r09: Use new renesas-ceu camera driver")
Fixes: 186c446f4b84 ("media: arch: sh: migor: Use new renesas-ceu camera driver")
Fixes: 1a3c230b4151 ("media: arch: sh: ms7724se: Use new renesas-ceu camera driver")
Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20230724120742.2187-1-petrtesarik@huaweicloud.com
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
"Mostly small stragglers that missed the initial merge.

  Driver updates are qla2xxx and smartpqi (mp3sas has a high diffstat
  due to the volatile qualifier removal, fnic due to unused function
  removal and sd.c has a lot of code shuffling to remove forward
  declarations)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
  scsi: ufs: core: No need to update UPIU.header.flags and lun in advanced RPMB handler
  scsi: ufs: core: Add advanced RPMB support where UFSHCI 4.0 does not support EHS length in UTRD
  scsi: mpt3sas: Remove volatile qualifier
  scsi: mpt3sas: Perform additional retries if doorbell read returns 0
  scsi: libsas: Simplify sas_queue_reset() and remove unused code
  scsi: ufs: Fix the build for the old ARM OABI
  scsi: qla2xxx: Fix unused variable warning in qla2xxx_process_purls_pkt()
  scsi: fnic: Remove unused functions fnic_scsi_host_start/end_tag()
  scsi: qla2xxx: Fix spelling mistake "tranport" -> "transport"
  scsi: fnic: Replace sgreset tag with max_tag_id
  scsi: qla2xxx: Remove unused variables in qla24xx_build_scsi_type_6_iocbs()
  scsi: qla2xxx: Fix nvme_fc_rcv_ls_req() undefined error
  scsi: smartpqi: Change driver version to 2.1.24-046
  scsi: smartpqi: Enhance error messages
  scsi: smartpqi: Enhance controller offline notification
  scsi: smartpqi: Enhance shutdown notification
  scsi: smartpqi: Simplify lun_number assignment
  scsi: smartpqi: Rename pciinfo to pci_info
  scsi: smartpqi: Rename MACRO to clarify purpose
  scsi: smartpqi: Add abort handler
  ...

Merge tag 'driver-core-6.6-rc1-2' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver symbol lookup fix from Greg KH:
"Here is one last fixup for your tree for 6.6-rc1. It resolves a
  problem with the way that symbol_get was changed in the module tree
  merge in your tree to fix up the DVB drivers which rely on this old
  api to attach new devices.

  As the changelog comment says:

    In commit 9011e49d54dc ("modules: only allow symbol_get of
    EXPORT_SYMBOL_GPL modules") the use of symbol_get is properly
    restricted to GPL-only marked symbols. This interacts oddly with the
    DVB logic which only uses dvb_attach() to load the dvb driver which
    then uses symbol_get().

    Fix this up by properly marking all of the dvb_attach attach symbols
    as EXPORT_SYMBOL_GPL().

  This has been acked by Hans from the V4L driver side, Luis from the
  module side, Mauro on the media side, and Christoph said it was the
  correct solution, and was tested by the original reporter of the
  issue.

  It has passed 0-day testing, but has not been in linux-next due to it
  only being sent yesterday"

* tag 'driver-core-6.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  media: dvb: symbol fixup for dvb_attach()

Merge tag 'dma-mapping-6.6-2023-09-09' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fixes from Christoph Hellwig:

- move a dma-debug call that prints a message out from a lock that's
   causing problems with the lock order in serial drivers (Sergey
   Senozhatsky)

- fix the CONFIG_DMA_NUMA_CMA Kconfig entry to have the right
   dependency and not default to y (Christoph Hellwig)

- move an ifdef a bit to remove a __maybe_unused that seems to trip up
   some sensitivities (Christoph Hellwig)

- revert a bogus check in the CMA allocator (Zhenhua Huang)

* tag 'dma-mapping-6.6-2023-09-09' of git://git.infradead.org/users/hch/dma-mapping:
  Revert "dma-contiguous: check for memory region overlap"
  dma-pool: remove a __maybe_unused label in atomic_pool_expand
  dma-contiguous: fix the Kconfig entry for CONFIG_DMA_NUMA_CMA
  dma-debug: don't call __dma_entry_alloc_check_leak() under free_entries_lock

Merge tag 'pci-v6.6-fixes-1' of git://git./linux/kernel/git/pci/pci

Pull PCI fixes from Bjorn Helgaas:

- Add PCI_DYNAMIC_OF_NODES dependency on OF_IRQ to fix sparc64 build
   error (Lizhi Hou)

- After coalescing host bridge resources, free any released resources
   to avoid a leak (Ross Lagerwall)

- Revert a quirk that prevented NVIDIA T4 GPUs from using Secondary Bus
   Reset. The quirk worked around an issue that we now think is related
   to the Root Port, not the GPU (Bjorn Helgaas)

* tag 'pci-v6.6-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset"
  PCI: Free released resource after coalescing
  PCI: Fix CONFIG_PCI_DYNAMIC_OF_NODES kconfig dependencies

Merge tag 'ntb-6.6' of https://github.com/jonmason/ntb

Pull NTB updates from Jon Mason:
"Link toggling fixes and debugfs error path fixes"

[ And for everybody like me who always have to remind themselves what
  the TLA of the day is, and what NTB stands for - it's a PCIe
  "Non-Transparent Bridge" thing    - Linus ]

* tag 'ntb-6.6' of https://github.com/jonmason/ntb:
  ntb: Check tx descriptors outstanding instead of head/tail for tx queue
  ntb: Fix calculation ntb_transport_tx_free_entry()
  ntb: Drop packets when qp link is down
  ntb: Clean up tx tail index on link down
  ntb: amd: Drop unnecessary error check for debugfs_create_dir
  NTB: ntb_tool: Switch to memdup_user_nul() helper
  dtivers: ntb: fix parameter check in perf_setup_dbgfs()
  ntb: Remove error checking for debugfs_create_dir()

spnego: add missing OID to oid registry

Add missing OID to the registry. Some servers and clients (including
Windows) now request "NEGOEX - SPNEGEO Extended Negotiation Security")

See https://datatracker.ietf.org/doc/html/draft-zhu-negoex-02

Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

media: dvb: symbol fixup for dvb_attach()

In commit 9011e49d54dc ("modules: only allow symbol_get of
EXPORT_SYMBOL_GPL modules") the use of symbol_get is properly restricted
to GPL-only marked symbols. This interacts oddly with the DVB logic
which only uses dvb_attach() to load the dvb driver which then uses
symbol_get().

Fix this up by properly marking all of the dvb_attach attach symbols as
EXPORT_SYMBOL_GPL().

Fixes: 9011e49d54dc ("modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules")
Cc: stable <stable@kernel.org>
Reported-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: linux-media@vger.kernel.org
Cc: linux-modules@vger.kernel.org
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Link: https://lore.kernel.org/r/20230908092035.3815268-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag '6.6-rc-ksmbd' of git://git.samba.org/ksmbd

Pull smb server update from Steve French:
"After two years, many fixes and much testing, ksmbd is no longer
experimental"

* tag '6.6-rc-ksmbd' of git://git.samba.org/ksmbd:
ksmbd: remove experimental warning

Merge tag 'xarray-6.6' of git://git.infradead.org/users/willy/xarray

Pull xarray fixes from Matthew Wilcox:

- Fix a bug encountered by people using bittorrent where they'd get
   NULL pointer dereferences on page cache lookups when using XFS

- Two documentation fixes

* tag 'xarray-6.6' of git://git.infradead.org/users/willy/xarray:
  idr: fix param name in idr_alloc_cyclic() doc
  xarray: Document necessary flag in alloc functions
  XArray: Do not return sibling entries from xa_load()

Merge tag 'block-6.6-2023-09-08' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

- Fix null_blk polled IO timeout handling (Chengming)

- Regression fix for swapped arguments in drbd bvec_set_page()
   (Christoph)

- String length handling fix for s390 dasd (Heiko)

- Fixes for blk-throttle accounting (Yu)

- Fix page pinning issue for same page segments (Christoph)

- Remove redundant file_remove_privs() call (Christoph)

- Fix a regression in partition handling for devices not supporting
   partitions (Li)

* tag 'block-6.6-2023-09-08' of git://git.kernel.dk/linux:
  drbd: swap bvec_set_page len and offset
  block: fix pin count management when merging same-page segments
  null_blk: fix poll request timeout handling
  s390/dasd: fix string length handling
  block: don't add or resize partition on the disk with GENHD_FL_NO_PART
  block: remove the call to file_remove_privs in blkdev_write_iter
  blk-throttle: consider 'carryover_ios/bytes' in throtl_trim_slice()
  blk-throttle: use calculate_io/bytes_allowed() for throtl_trim_slice()
  blk-throttle: fix wrong comparation while 'carryover_ios/bytes' is negative
  blk-throttle: print signed value 'carryover_bytes/ios' for user

Merge tag 'io_uring-6.6-2023-09-08' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:
"A few fixes that should go into the 6.6-rc merge window:

   - Fix for a regression this merge window caused by the SQPOLL
     affinity patch, where we can race with SQPOLL thread shutdown and
     cause an oops when trying to set affinity (Gabriel)

   - Fix for a regression this merge window where fdinfo reading with
     for a ring setup with IORING_SETUP_NO_SQARRAY will attempt to
     deference the non-existing SQ ring array (me)

   - Add the patch that allows more finegrained control over who can use
     io_uring (Matteo)

   - Locking fix for a regression added this merge window for IOPOLL
     overflow (Pavel)

   - IOPOLL fix for stable, breaking our loop if helper threads are
     exiting (Pavel)

  Also had a fix for unreaped iopoll requests from io-wq from Ming, but
  we found an issue with that and hence it got reverted. Will get this
  sorted for a future rc"

* tag 'io_uring-6.6-2023-09-08' of git://git.kernel.dk/linux:
  Revert "io_uring: fix IO hang in io_wq_put_and_exit from do_exit()"
  io_uring: fix unprotected iopoll overflow
  io_uring: break out of iowq iopoll on teardown
  io_uring: add a sysctl to disable io_uring system-wide
  io_uring/fdinfo: only print ->sq_array[] if it's there
  io_uring: fix IO hang in io_wq_put_and_exit from do_exit()
  io_uring: Don't set affinity on a dying sqpoll thread

smb3: fix minor typo in SMB2_GLOBAL_CAP_LARGE_MTU

There was a minor typo in the define for SMB2_GLOBAL_CAP_LARGE_MTU
0X00000004 instead of 0x00000004
make it consistent

Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

Merge tag 'thermal-6.6-rc1-3' of git://git./linux/kernel/git/rafael/linux-pm

Pull more thermal control updates from Rafael Wysocki:
"Eliminate an obsolete thermal zone registration function"

* tag 'thermal-6.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: core: Drop thermal_zone_device_register()
  thermal: Use thermal_tripless_zone_device_register()
  thermal: core: Add function for registering tripless thermal zones
  thermal: core: Clean up headers of thermal zone registration functions

Merge tag 'pm-6.6-rc1-3' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
"Fix an Intel RAPL power capping driver regression introduced during
the 6.5 development cycle (Srinivas Pandruvada)"

* tag 'pm-6.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
powercap: intel_rapl: Fix invalid setting of Power Limit 4

Merge tag 'gpio-fixes-for-v6.6-rc1' of git://git./linux/kernel/git/brgl/linux

Pull gpio fix from Bartosz Golaszewski:

- fix a regression in irqchip setup in gpio-zynq

* tag 'gpio-fixes-for-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: zynq: restore zynq_gpio_irq_reqres/zynq_gpio_irq_relres callbacks

Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset"

This reverts commit d5af729dc2071273f14cbb94abbc60608142fd83.

d5af729dc207 ("PCI: Mark NVIDIA T4 GPUs to avoid bus reset") avoided
Secondary Bus Reset on the T4 because the reset seemed to not work when the
T4 was directly attached to a Root Port.

But NVIDIA thinks the issue is probably related to some issue with the Root
Port, not with the T4. The T4 provides neither PM nor FLR reset, so
masking bus reset compromises this device for assignment scenarios.

Revert d5af729dc207 as requested by Wu Zongyong. This will leave SBR
broken in the specific configuration Wu tested, as it was in v6.5, so Wu
will debug that further.

Link: https://lore.kernel.org/r/ZPqMCDWvITlOLHgJ@wuzongyong-alibaba
Link: https://lore.kernel.org/r/20230908201104.GA305023@bhelgaas
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Merge tag 'sound-fix-6.6-rc1' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
"A collection of fixes for 6.6-rc1. All small and easy ones.

   - The corrections of the previous PCM iov_iter transitions

   - Regression fixes in MIDI 2.0 / USB changes

   - Various ASoC codec fixes for Cirrus, Realtek, WCD

   - ASoC AMD quirks and ASoC Intel AVS driver workaround"

* tag 'sound-fix-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
  ALSA: hda/realtek - ALC287 I2S speaker platform support
  ASoC: amd: yc: Fix a non-functional mic on Lenovo 82TL
  ASoC: Intel: avs: Provide support for fallback topology
  ALSA: seq: Fix snd_seq_expand_var_event() call to user-space
  ALSA: usb-audio: Fix potential memory leaks at error path for UMP open
  ALSA: hda/cirrus: Fix broken audio on hardware with two CS42L42 codecs.
  ASoC: rt5645: NULL pointer access when removing jack
  ASoC: amd: yc: Add DMI entries to support Victus by HP Gaming Laptop 15-fb0xxx (8A3E)
  MAINTAINERS: Update the MAINTAINERS enties for TEXAS INSTRUMENTS ASoC DRIVERS
  ALSA: sb: Fix wrong argument in commented code
  ALSA: pcm: Fix error checks of default read/write copy ops
  ASoC: Name iov_iter argument as iterator instead of buffer
  ASoC: dmaengine: Drop unused iov_iter for process callback
  ALSA: hda/tas2781: Use standard clamp() macro
  ASoC: cs35l56: Waiting for firmware to boot must be tolerant of I/O errors
  ASoC: dt-bindings: fsl_easrc: Add support for imx8mp-easrc
  ASoC: cs42l43: Fix missing error code in cs42l43_codec_probe()
  ASoC: cs35l45: Rename DACPCM1 Source control
  ASoC: cs35l45: Fix "Dead assigment" warning
  ASoC: cs35l45: Add support for Chip ID 0x35A460
  ...

Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
"The main one is a fix for a broken strscpy() conversion that landed in
  the merge window and broke early parsing of the kernel command line.

   - Fix an incorrect mask in the CXL PMU driver

   - Fix a regression in early parsing of the kernel command line

   - Fix an IP checksum OoB access reported by syzbot"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: csum: Fix OoB access in IP checksum code for negative lengths
  arm64/sysreg: Fix broken strncpy() -> strscpy() conversion
  perf: CXL: fix mismatched number of counters mask

Merge tag 'loongarch-6.6' of git://git./linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

- Allow usage of LSX/LASX in the kernel, and use them for
   SIMD-optimized RAID5/RAID6 routines

- Add Loongson Binary Translation (LBT) extension support

- Add basic KGDB & KDB support

- Add building with kcov coverage

- Add KFENCE (Kernel Electric-Fence) support

- Add KASAN (Kernel Address Sanitizer) support

- Some bug fixes and other small changes

- Update the default config file

* tag 'loongarch-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (25 commits)
  LoongArch: Update Loongson-3 default config file
  LoongArch: Add KASAN (Kernel Address Sanitizer) support
  LoongArch: Simplify the processing of jumping new kernel for KASLR
  kasan: Add (pmd|pud)_init for LoongArch zero_(pud|p4d)_populate process
  kasan: Add __HAVE_ARCH_SHADOW_MAP to support arch specific mapping
  LoongArch: Add KFENCE (Kernel Electric-Fence) support
  LoongArch: Get partial stack information when providing regs parameter
  LoongArch: mm: Add page table mapped mode support for virt_to_page()
  kfence: Defer the assignment of the local variable addr
  LoongArch: Allow building with kcov coverage
  LoongArch: Provide kaslr_offset() to get kernel offset
  LoongArch: Add basic KGDB & KDB support
  LoongArch: Add Loongson Binary Translation (LBT) extension support
  raid6: Add LoongArch SIMD recovery implementation
  raid6: Add LoongArch SIMD syndrome calculation
  LoongArch: Add SIMD-optimized XOR routines
  LoongArch: Allow usage of LSX/LASX in the kernel
  LoongArch: Define symbol 'fault' as a local label in fpu.S
  LoongArch: Adjust {copy, clear}_user exception handler behavior
  LoongArch: Use static defined zero page rather than allocated
  ...

Merge tag 'printk-for-6.6-fixup' of git://git./linux/kernel/git/printk/linux

Pull printk fix from Petr Mladek:

- Revert exporting symbols needed for dumping the raw printk buffer in
   panic().

   I pushed the export prematurely before the user was ready for merging
   into the mainline.

* tag 'printk-for-6.6-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  Revert "printk: export symbols for debug modules"

Merge tag 'landlock-6.6-rc1' of git://git./linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
"One test fix and a __counted_by annotation"

* tag 'landlock-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
selftests/landlock: Fix a resource leak
landlock: Annotate struct landlock_rule with __counted_by

soc: renesas: Kconfig: For ARCH_R9A07G043 select the required configs if dependencies are met

To prevent randconfig build issues when enabling the RZ/Five SoC, consider
selecting specific configurations only when their dependencies are
satisfied.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308311610.ec6bm2G8-lkp@intel.com/
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Fixes: 484861e09f3e ("soc: renesas: Kconfig: Select the required configs for RZ/Five SoC")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230901110936.313171-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

riscv: Kconfig.errata: Add dependency for RISCV_SBI in ERRATA_ANDES config

Andes errata uses sbi_ecalll() which is only available if RISCV_SBI is
enabled. So add an dependency for RISCV_SBI in ERRATA_ANDES config to
avoid any build failures.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308311610.ec6bm2G8-lkp@intel.com/
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230901110320.312674-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

riscv: Kconfig.errata: Drop dependency for MMU in ERRATA_ANDES_CMO config

Now that RISCV_DMA_NONCOHERENT conditionally selects DMA_DIRECT_REMAP
ie only if MMU is enabled, we no longer need the MMU dependency in
ERRATA_ANDES_CMO config.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230901105858.311745-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

riscv: Kconfig: Select DMA_DIRECT_REMAP only if MMU is enabled

kernel/dma/mapping.c has its use of pgprot_dmacoherent() inside
an #ifdef CONFIG_MMU block. kernel/dma/pool.c has its use of
pgprot_dmacoherent() inside an #ifdef CONFIG_DMA_DIRECT_REMAP block.
So select DMA_DIRECT_REMAP only if MMU is enabled for RISCV_DMA_NONCOHERENT
config.

This avoids users to explicitly select MMU.

Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20230901105111.311200-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Merge patch series "bpf, riscv: use BPF prog pack allocator in BPF JIT"

Puranjay Mohan <puranjay12@gmail.com> says:

Here is some data to prove the V2 fixes the problem:

Without this series:
root@rv-selftester:~/src/kselftest/bpf# time ./test_tag
test_tag: OK (40945 tests)

real    7m47.562s
user    0m24.145s
sys     6m37.064s

With this series applied:
root@rv-selftester:~/src/selftest/bpf# time ./test_tag
test_tag: OK (40945 tests)

real    7m29.472s
user    0m25.865s
sys     6m18.401s

BPF programs currently consume a page each on RISCV. For systems with many BPF
programs, this adds significant pressure to instruction TLB. High iTLB pressure
usually causes slow down for the whole system.

Song Liu introduced the BPF prog pack allocator[1] to mitigate the above issue.
It packs multiple BPF programs into a single huge page. It is currently only
enabled for the x86_64 BPF JIT.

I enabled this allocator on the ARM64 BPF JIT[2]. It is being reviewed now.

This patch series enables the BPF prog pack allocator for the RISCV BPF JIT.

======================================================
Performance Analysis of prog pack allocator on RISCV64
======================================================

Test setup:
===========

Host machine: Debian GNU/Linux 11 (bullseye)
Qemu Version: QEMU emulator version 8.0.3 (Debian 1:8.0.3+dfsg-1)
u-boot-qemu Version: 2023.07+dfsg-1
opensbi Version: 1.3-1

To test the performance of the BPF prog pack allocator on RV, a stresser
tool[4] linked below was built. This tool loads 8 BPF programs on the system and
triggers 5 of them in an infinite loop by doing system calls.

The runner script starts 20 instances of the above which loads 8*20=160 BPF
programs on the system, 5*20=100 of which are being constantly triggered.
The script is passed a command which would be run in the above environment.

The script was run with following perf command:
./run.sh "perf stat -a \
        -e iTLB-load-misses \
        -e dTLB-load-misses  \
        -e dTLB-store-misses \
        -e instructions \
        --timeout 60000"

The output of the above command is discussed below before and after enabling the
BPF prog pack allocator.

The tests were run on qemu-system-riscv64 with 8 cpus, 16G memory. The rootfs
was created using Bjorn's riscv-cross-builder[5] docker container linked below.

Results
=======

Before enabling prog pack allocator:
------------------------------------

Performance counter stats for 'system wide':

           4939048      iTLB-load-misses
           5468689      dTLB-load-misses
            465234      dTLB-store-misses
     1441082097998      instructions

      60.045791200 seconds time elapsed

After enabling prog pack allocator:
-----------------------------------

Performance counter stats for 'system wide':

           3430035      iTLB-load-misses
           5008745      dTLB-load-misses
            409944      dTLB-store-misses
     1441535637988      instructions

      60.046296600 seconds time elapsed

Improvements in metrics
=======================

It was expected that the iTLB-load-misses would decrease as now a single huge
page is used to keep all the BPF programs compared to a single page for each
program earlier.

--------------------------------------------
The improvement in iTLB-load-misses: -30.5 %
--------------------------------------------

I repeated this expriment more than 100 times in different setups and the
improvement was always greater than 30%.

This patch series is boot tested on the Starfive VisionFive 2 board[6].
The performance analysis was not done on the board because it doesn't
expose iTLB-load-misses, etc. The stresser program was run on the board to test
the loading and unloading of BPF programs

[1] https://lore.kernel.org/bpf/20220204185742.271030-1-song@kernel.org/
[2] https://lore.kernel.org/all/20230626085811.3192402-1-puranjay12@gmail.com/
[3] https://lore.kernel.org/all/20230626085811.3192402-2-puranjay12@gmail.com/
[4] https://github.com/puranjaymohan/BPF-Allocator-Bench
[5] https://github.com/bjoto/riscv-cross-builder
[6] https://www.starfivetech.com/en/site/boards

* b4-shazam-merge:
  bpf, riscv: use prog pack allocator in the BPF JIT
  riscv: implement a memset like function for text
  riscv: extend patch_text_nosync() for multiple pages
  bpf: make bpf_prog_pack allocator portable

Link: https://lore.kernel.org/r/20230831131229.497941-1-puranjay12@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Merge patch series "riscv: Introduce KASLR"

Alexandre Ghiti <alexghiti@rivosinc.com> says:

The following KASLR implementation allows to randomize the kernel mapping:

- virtually: we expect the bootloader to provide a seed in the device-tree
- physically: only implemented in the EFI stub, it relies on the firmware to
  provide a seed using EFI_RNG_PROTOCOL. arm64 has a similar implementation
  hence the patch 3 factorizes KASLR related functions for riscv to take
  advantage.

The new virtual kernel location is limited by the early page table that only
has one PUD and with the PMD alignment constraint, the kernel can only take
< 512 positions.

* b4-shazam-merge:
  riscv: libstub: Implement KASLR by using generic functions
  libstub: Fix compilation warning for rv32
  arm64: libstub: Move KASLR handling functions to kaslr.c
  riscv: Dump out kernel offset information on panic
  riscv: Introduce virtual kernel mapping KASLR

Link: https://lore.kernel.org/r/20230722123850.634544-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Merge patch "RISC-V: Add ptrace support for vectors"

This resurrects the vector ptrace() support that was removed for 6.5 due
to some bugs cropping up as part of the GDB review process.

* b4-shazam-merge:
RISC-V: Add ptrace support for vectors

Link: https://lore.kernel.org/r/20230825050248.32681-1-andy.chiu@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Merge patch series "Add non-coherent DMA support for AX45MP"

Prabhakar <prabhakar.csengg@gmail.com> says:

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

non-coherent DMA support for AX45MP
====================================

On the Andes AX45MP core, cache coherency is a specification option so it
may not be supported. In this case DMA will fail. To get around with this
issue this patch series does the below:

1] Andes alternative ports is implemented as errata which checks if the
IOCP is missing and only then applies to CMO errata. One vendor specific
SBI EXT (ANDES_SBI_EXT_IOCP_SW_WORKAROUND) is implemented as part of
errata.

Below are the configs which Andes port provides (and are selected by
RZ/Five):
      - ERRATA_ANDES
      - ERRATA_ANDES_CMO

OpenSBI patch supporting ANDES_SBI_EXT_IOCP_SW_WORKAROUND SBI is now
part v1.3 release.

2] Andes AX45MP core has a Programmable Physical Memory Attributes (PMA)
block that allows dynamic adjustment of memory attributes in the runtime.
It contains a configurable amount of PMA entries implemented as CSR
registers to control the attributes of memory locations in interest.
OpenSBI configures the PMA regions as required and creates a reserve memory
node and propagates it to the higher boot stack.

Currently OpenSBI (upstream) configures the required PMA region and passes
this a shared DMA pool to Linux.

    reserved-memory {
        #address-cells = <2>;
        #size-cells = <2>;
        ranges;

        pma_resv0@58000000 {
            compatible = "shared-dma-pool";
            reg = <0x0 0x58000000 0x0 0x08000000>;
            no-map;
            linux,dma-default;
        };
    };

The above shared DMA pool gets appended to Linux DTB so the DMA memory
requests go through this region.

3] We provide callbacks to synchronize specific content between memory and
cache.

4] RZ/Five SoC selects the below configs
        - AX45MP_L2_CACHE
        - DMA_GLOBAL_POOL
        - ERRATA_ANDES
        - ERRATA_ANDES_CMO

----------x---------------------x--------------------x---------------x----

* b4-shazam-merge:
  soc: renesas: Kconfig: Select the required configs for RZ/Five SoC
  cache: Add L2 cache management for Andes AX45MP RISC-V core
  dt-bindings: cache: andestech,ax45mp-cache: Add DT binding documentation for L2 cache controller
  riscv: mm: dma-noncoherent: nonstandard cache operations support
  riscv: errata: Add Andes alternative ports
  riscv: asm: vendorid_list: Add Andes Technology to the vendors list

Link: https://lore.kernel.org/r/20230818135723.80612-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Merge patch series "riscv: dma-mapping: unify support for cache flushes"

Prabhakar <prabhakar.csengg@gmail.com> says:

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

This patch series is a subset from Arnd's original series [0]. Ive just
picked up the bits required for RISC-V unification of cache flushing.
Remaining patches from the series [0] will be taken care by Arnd soon.

* b4-shazam-merge:
  riscv: dma-mapping: switch over to generic implementation
  riscv: dma-mapping: skip invalidation before bidirectional DMA
  riscv: dma-mapping: only invalidate after DMA, not flush

Link: https://lore.kernel.org/r/20230816232336.164413-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Merge patch series "RISC-V: Probe for misaligned access speed"

Evan Green <evan@rivosinc.com> says:

The current setting for the hwprobe bit indicating misaligned access
speed is controlled by a vendor-specific feature probe function. This is
essentially a per-SoC table we have to maintain on behalf of each vendor
going forward. Let's convert that instead to something we detect at
runtime.

We have two assembly routines at the heart of our probe: one that
does a bunch of word-sized accesses (without aligning its input buffer),
and the other that does byte accesses. If we can move a larger number of
bytes using misaligned word accesses than we can with the same amount of
time doing byte accesses, then we can declare misaligned accesses as
"fast".

The tradeoff of reducing this maintenance burden is boot time. We spend
4-6 jiffies per core doing this measurement (0-2 on jiffie edge
alignment, and 4 on measurement). The timing loop was based on
raid6_choose_gen(), which uses (16+1)*N jiffies (where N is the number
of algorithms). By taking only the fastest iteration out of all
attempts for use in the comparison, variance between runs is very low.
On my THead C906, it looks like this:

[    0.047563] cpu0: Ratio of byte access time to unaligned word access is 4.34, unaligned accesses are fast

Several others have chimed in with results on slow machines with the
older algorithm, which took all runs into account, including noise like
interrupts. Even with this variation, results indicate that in all cases
(fast, slow, and emulated) the measured numbers are nowhere near each
other (always multiple factors away).

* b4-shazam-merge:
  RISC-V: alternative: Remove feature_probe_func
  RISC-V: Probe for unaligned access speed

Link: https://lore.kernel.org/r/20230818194136.4084400-1-evan@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Revert "dma-contiguous: check for memory region overlap"

This reverts commit 3fa6456ebe13adab3ba1817c8e515a5b88f95dce.

The Commit broke the CMA region creation through DT on arm64,
as showed below logs with "memblock=debug":
[    0.000000] memblock_phys_alloc_range: 41943040 bytes align=0x200000
from=0x0000000000000000 max_addr=0x00000000ffffffff
early_init_dt_alloc_reserved_memory_arch+0x34/0xa0
[    0.000000] memblock_reserve: [0x00000000fd600000-0x00000000ffdfffff]
memblock_alloc_range_nid+0xc0/0x19c
[    0.000000] Reserved memory: overlap with other memblock reserved region

>From call flow, region we defined in DT was always reserved before entering
into rmem_cma_setup. Also, rmem_cma_setup has one routine cma_init_reserved_mem
to ensure the region was reserved. Checking the region not reserved here seems
not correct.

early_init_fdt_scan_reserved_mem:
    fdt_scan_reserved_mem
        __reserved_mem_reserve_reg
early_init_dt_reserve_memory
memblock_reserve(using “reg” prop case)
        fdt_init_reserved_mem
__reserved_mem_alloc_size
*early_init_dt_alloc_reserved_memory_arch*
memblock_reserve(dynamic alloc case)
        __reserved_mem_init_node
rmem_cma_setup(region overlap check here should always fail)

Example DT can be used to reproduce issue:

    dump_mem: mem_dump_region {
            compatible = "shared-dma-pool";
            alloc-ranges = <0x0 0x00000000 0x0 0xffffffff>;
            reusable;
            size = <0 0x2800000>;
    };

Signed-off-by: Zhenhua Huang <quic_zhenhuah@quicinc.com>

Merge tag 'drm-next-2023-09-08' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
"Regular rounds of rc1 fixes, a large bunch for amdgpu since it's three
  weeks in one go, one i915, one nouveau and one ivpu.

  I think there might be a few more fixes in misc that I haven't pulled
  in yet, but we should get them all for rc2.

  amdgpu:
   - Display replay fixes
   - Fixes for headless boards
   - Fix documentation breakage
   - RAS fixes
   - Handle newer IP discovery tables
   - SMU 13.0.6 fixes
   - SR-IOV fixes
   - Display vstartup fixes
   - NBIO 7.9 fixes
   - Display scaling mode fixes
   - Debugfs power reporting fix
   - GC 9.4.3 fixes
   - Dirty framebuffer fixes for fbcon
   - eDP fixes
   - DCN 3.1.5 fix
   - Display ODM fixes
   - GPU core dump fix
   - Re-enable zops property now that IGT test is fixed
   - Fix possible UAF in CS code
   - Cursor degamma fix

  amdkfd:
   - HMM fixes
   - Interrupt masking fix
   - GFX11 MQD fixes

  i915:
   - Mark requests for GuC virtual engines to avoid use-after-free

  nouveau:
   - Fix fence state in nouveau_fence_emit()

  ivpu:
   - replace strncpy"

* tag 'drm-next-2023-09-08' of git://anongit.freedesktop.org/drm/drm: (51 commits)
  drm/amdgpu: Restrict bootloader wait to SMUv13.0.6
  drm/amd/display: prevent potential division by zero errors
  drm/amd/display: enable cursor degamma for DCN3+ DRM legacy gamma
  drm/amd/display: limit the v_startup workaround to ASICs older than DCN3.1
  Revert "drm/amd/display: Remove v_startup workaround for dcn3+"
  drm/amdgpu: fix amdgpu_cs_p1_user_fence
  Revert "Revert "drm/amd/display: Implement zpos property""
  drm/amdkfd: Add missing gfx11 MQD manager callbacks
  drm/amdgpu: Free ras cmd input buffer properly
  drm/amdgpu: Hide xcp partition sysfs under SRIOV
  drm/amdgpu: use read-modify-write mode for gfx v9_4_3 SQ setting
  drm/amdkfd: use mask to get v9 interrupt sq data bits correctly
  drm/amdgpu: Allocate coredump memory in a nonblocking way
  drm/amdgpu: Support query ecc cap for aqua_vanjaram
  drm/amdgpu: Add umc_info v4_0 structure
  drm/amd/display: always switch off ODM before committing more streams
  drm/amd/display: Remove wait while locked
  drm/amd/display: update blank state on ODM changes
  drm/amd/display: Add smu write msg id fail retry process
  drm/amdgpu: Add SMU v13.0.6 default reset methods
  ...

Merge tag 'net-6.6-rc1' of git://git./linux/kernel/git/netdev/net

Pull networking updates from Jakub Kicinski:
"Including fixes from netfilter and bpf.

  Current release - regressions:

   - eth: stmmac: fix failure to probe without MAC interface specified

  Current release - new code bugs:

   - docs: netlink: fix missing classic_netlink doc reference

  Previous releases - regressions:

   - deal with integer overflows in kmalloc_reserve()

   - use sk_forward_alloc_get() in sk_get_meminfo()

   - bpf_sk_storage: fix the missing uncharge in sk_omem_alloc

   - fib: avoid warn splat in flow dissector after packet mangling

   - skb_segment: call zero copy functions before using skbuff frags

   - eth: sfc: check for zero length in EF10 RX prefix

  Previous releases - always broken:

   - af_unix: fix msg_controllen test in scm_pidfd_recv() for
     MSG_CMSG_COMPAT

   - xsk: fix xsk_build_skb() dereferencing possible ERR_PTR()

   - netfilter:
      - nft_exthdr: fix non-linear header modification
      - xt_u32, xt_sctp: validate user space input
      - nftables: exthdr: fix 4-byte stack OOB write
      - nfnetlink_osf: avoid OOB read
      - one more fix for the garbage collection work from last release

   - igmp: limit igmpv3_newpack() packet size to IP_MAX_MTU

   - bpf, sockmap: fix preempt_rt splat when using raw_spin_lock_t

   - handshake: fix null-deref in handshake_nl_done_doit()

   - ip: ignore dst hint for multipath routes to ensure packets are
     hashed across the nexthops

   - phy: micrel:
      - correct bit assignments for cable test errata
      - disable EEE according to the KSZ9477 errata

  Misc:

   - docs/bpf: document compile-once-run-everywhere (CO-RE) relocations

   - Revert "net: macsec: preserve ingress frame ordering", it appears
     to have been developed against an older kernel, problem doesn't
     exist upstream"

* tag 'net-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (95 commits)
  net: enetc: distinguish error from valid pointers in enetc_fixup_clear_rss_rfs()
  Revert "net: team: do not use dynamic lockdep key"
  net: hns3: remove GSO partial feature bit
  net: hns3: fix the port information display when sfp is absent
  net: hns3: fix invalid mutex between tc qdisc and dcb ets command issue
  net: hns3: fix debugfs concurrency issue between kfree buffer and read
  net: hns3: fix byte order conversion issue in hclge_dbg_fd_tcam_read()
  net: hns3: Support query tx timeout threshold by debugfs
  net: hns3: fix tx timeout issue
  net: phy: Provide Module 4 KSZ9477 errata (DS80000754C)
  netfilter: nf_tables: Unbreak audit log reset
  netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
  netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction
  netfilter: nf_tables: uapi: Describe NFTA_RULE_CHAIN_ID
  netfilter: nfnetlink_osf: avoid OOB read
  netfilter: nftables: exthdr: fix 4-byte stack OOB write
  selftests/bpf: Check bpf_sk_storage has uncharged sk_omem_alloc
  bpf: bpf_sk_storage: Fix the missing uncharge in sk_omem_alloc
  bpf: bpf_sk_storage: Fix invalid wait context lockdep report
  s390/bpf: Pass through tail call counter in trampolines
  ...

Merge tag 'devicetree-fixes-for-6.6-1' of git://git./linux/kernel/git/robh/linux

Pull more devicetree updates from Rob Herring:
"A couple of conversions which didn't get picked up by the subsystems
  and one fix:

   - Convert st,stih407-irq-syscfg and Omnivision OV7251 bindings to DT
     schema

   - Merge Omnivision OV5695 into OV5693 binding

   - Fix of_overlay_fdt_apply prototype when !CONFIG_OF_OVERLAY"

* tag 'devicetree-fixes-for-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: irqchip: convert st,stih407-irq-syscfg to DT schema
  media: dt-bindings: Convert Omnivision OV7251 to DT schema
  media: dt-bindings: Merge OV5695 into OV5693 binding
  of: overlay: Fix of_overlay_fdt_apply prototype when !CONFIG_OF_OVERLAY

Merge tag 'pwm/for-6.6-rc1' of git://git./linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
"Various cleanups and fixes across the board"

* tag 'pwm/for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (31 commits)
  pwm: lpc32xx: Remove handling of PWM channels
  pwm: atmel: Simplify using devm functions
  dt-bindings: pwm: brcm,kona-pwm: convert to YAML
  pwm: stmpe: Handle errors when disabling the signal
  pwm: stm32: Simplify using devm_pwmchip_add()
  pwm: stm32: Don't modify HW state in .remove() callback
  pwm: Fix order of freeing resources in pwmchip_remove()
  pwm: ntxec: Use device_set_of_node_from_dev()
  pwm: ntxec: Drop a write-only variable from driver data
  pwm: pxa: Don't reimplement of_device_get_match_data()
  pwm: lpc18xx-sct: Simplify using devm_clk_get_enabled()
  pwm: atmel-tcb: Don't track polarity in driver data
  pwm: atmel-tcb: Unroll atmel_tcb_pwm_set_polarity() into only caller
  pwm: atmel-tcb: Put per-channel data into driver data
  pwm: atmel-tcb: Fix resource freeing in error path and remove
  pwm: atmel-tcb: Harmonize resource allocation order
  pwm: Drop unused #include <linux/radix-tree.h>
  pwm: rz-mtu3: Fix build warning 'num_channel_ios' not described
  pwm: Remove outdated documentation for pwmchip_remove()
  pwm: atmel: Enable clk when pwm already enabled in bootloader
  ...

Merge tag 'amd-drm-fixes-6.6-2023-09-06' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-fixes-6.6-2023-09-06:

amdgpu:
- Display replay fixes
- Fixes for headless boards
- Fix documentation breakage
- RAS fixes
- Handle newer IP discovery tables
- SMU 13.0.6 fixes
- SR-IOV fixes
- Display vstartup fixes
- NBIO 7.9 fixes
- Display scaling mode fixes
- Debugfs power reporting fix
- GC 9.4.3 fixes
- Dirty framebuffer fixes for fbcon
- eDP fixes
- DCN 3.1.5 fix
- Display ODM fixes
- GPU core dump fix
- Re-enable zops property now that IGT test is fixed
- Fix possible UAF in CS code
- Cursor degamma fix

amdkfd:
- HMM fixes
- Interrupt masking fix
- GFX11 MQD fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230907033049.7811-1-alexander.deucher@amd.com

Merge tag 'drm-intel-next-fixes-2023-08-31' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- Mark requests for GuC virtual engines to avoid use-after-free (Andrzej).

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZPEGEeP2EwCtx9hM@intel.com

Merge tag 'rtc-6.6' of git://git./linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
"Subsystem:

   - Add a way for drivers to tell the core the supported alarm range is
     smaller than the date range. This is not used yet but will be
     useful for the alarmtimers in the next release.

   - fix Wvoid-pointer-to-enum-cast warnings

   - remove redundant of_match_ptr()

   - stop warning for invalid alarms when the alarm is disabled

  Drivers:

   - isl12022: allow setting the trip level for battery level detection

   - pcf2127: add support for PCF2131 and multiple timestamps

   - stm32: time precision improvement, many fixes

   - twl: NVRAM support"

* tag 'rtc-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (73 commits)
  dt-bindings: rtc: ds3231: Remove text binding
  rtc: wm8350: remove unnecessary messages
  rtc: twl: remove unnecessary messages
  rtc: sun6i: remove unnecessary message
  rtc: stop warning for invalid alarms when the alarm is disabled
  rtc: twl: add NVRAM support
  rtc: pcf85363: Allow to wake up system without IRQ
  rtc: m48t86: add DT support for m48t86
  dt-bindings: rtc: Add ST M48T86
  rtc: pcf2127: remove useless check
  rtc: rzn1: Report maximum alarm limit to rtc core
  rtc: ds1305: Report maximum alarm limit to rtc core
  rtc: tps6586x: Report maximum alarm limit to rtc core
  rtc: cmos: Report supported alarm limit to rtc infrastructure
  rtc: cros-ec: Detect and report supported alarm window size
  rtc: Add support for limited alarm timer offsets
  rtc: isl1208: Fix incorrect logic in isl1208_set_xtoscb()
  MAINTAINERS: remove obsolete pattern in RTC SUBSYSTEM section
  rtc: tps65910: Remove redundant dev_warn() and do not check for 0 return after calling platform_get_irq()
  rtc: omap: Do not check for 0 return after calling platform_get_irq()
  ...

Merge tag 'i3c/for-6.6' of git://git./linux/kernel/git/i3c/linux

Pull i3c updates from Alexandre Belloni:
"Core:
   - Fix SETDASA when static and dynamic adress are equal
   - Fix cmd_v1 DAA exit criteria

  Drivers:
   - svc: allow probing without any device"

* tag 'i3c/for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: svc: fix probe failure when no i3c device exist
  i3c: master: Fix SETDASA process
  dt-bindings: i3c: Fix description for assigned-address
  i3c: master: svc: Describe member 'saved_regs'
  i3c: master: svc: Do not check for 0 return after calling platform_get_irq()
  i3c/master: cmd_v1: Fix the exit criteria for the daa procedure
  i3c: Explicitly include correct DT includes

Merge tag 'regulator-fix-v6.6-merge-window' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
"A couple of fixes that came in during the merge window, both driver
  specific - one for a bug that came up in testing, one for a bug due
  to a misreading of the datasheet"

* tag 'regulator-fix-v6.6-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: tps6594-regulator: Fix random kernel crash
  regulator: tps6287x: Fix n_voltages

Merge tag 'spi-fix-v6.6-merge-window' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
"A couple of fixes for the sun6i driver. The patch to reduce DMA RX to
  single byte width all the time is *hopefully* excessively cautious but
  it's unclear which SoCs are affected so the fix just covers everything
  for safety"

* tag 'spi-fix-v6.6-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
  spi: sun6i: reduce DMA RX transfer width to single byte

Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
"ARM:

   - Clean up vCPU targets, always returning generic v8 as the preferred
     target

   - Trap forwarding infrastructure for nested virtualization (used for
     traps that are taken from an L2 guest and are needed by the L1
     hypervisor)

   - FEAT_TLBIRANGE support to only invalidate specific ranges of
     addresses when collapsing a table PTE to a block PTE. This avoids
     that the guest refills the TLBs again for addresses that aren't
     covered by the table PTE.

   - Fix vPMU issues related to handling of PMUver.

   - Don't unnecessary align non-stack allocations in the EL2 VA space

   - Drop HCR_VIRT_EXCP_MASK, which was never used...

   - Don't use smp_processor_id() in kvm_arch_vcpu_load(), but the cpu
     parameter instead

   - Drop redundant call to kvm_set_pfn_accessed() in user_mem_abort()

   - Remove prototypes without implementations

  RISC-V:

   - Zba, Zbs, Zicntr, Zicsr, Zifencei, and Zihpm support for guest

   - Added ONE_REG interface for SATP mode

   - Added ONE_REG interface to enable/disable multiple ISA extensions

   - Improved error codes returned by ONE_REG interfaces

   - Added KVM_GET_REG_LIST ioctl() implementation for KVM RISC-V

   - Added get-reg-list selftest for KVM RISC-V

  s390:

   - PV crypto passthrough enablement (Tony, Steffen, Viktor, Janosch)

     Allows a PV guest to use crypto cards. Card access is governed by
     the firmware and once a crypto queue is "bound" to a PV VM every
     other entity (PV or not) looses access until it is not bound
     anymore. Enablement is done via flags when creating the PV VM.

   - Guest debug fixes (Ilya)

  x86:

   - Clean up KVM's handling of Intel architectural events

   - Intel bugfixes

   - Add support for SEV-ES DebugSwap, allowing SEV-ES guests to use
     debug registers and generate/handle #DBs

   - Clean up LBR virtualization code

   - Fix a bug where KVM fails to set the target pCPU during an IRTE
     update

   - Fix fatal bugs in SEV-ES intrahost migration

   - Fix a bug where the recent (architecturally correct) change to
     reinject #BP and skip INT3 broke SEV guests (can't decode INT3 to
     skip it)

   - Retry APIC map recalculation if a vCPU is added/enabled

   - Overhaul emergency reboot code to bring SVM up to par with VMX, tie
     the "emergency disabling" behavior to KVM actually being loaded,
     and move all of the logic within KVM

   - Fix user triggerable WARNs in SVM where KVM incorrectly assumes the
     TSC ratio MSR cannot diverge from the default when TSC scaling is
     disabled up related code

   - Add a framework to allow "caching" feature flags so that KVM can
     check if the guest can use a feature without needing to search
     guest CPUID

   - Rip out the ancient MMU_DEBUG crud and replace the useful bits with
     CONFIG_KVM_PROVE_MMU

   - Fix KVM's handling of !visible guest roots to avoid premature
     triple fault injection

   - Overhaul KVM's page-track APIs, and KVMGT's usage, to reduce the
     API surface that is needed by external users (currently only
     KVMGT), and fix a variety of issues in the process

  Generic:

   - Wrap kvm_{gfn,hva}_range.pte in a union to allow mmu_notifier
     events to pass action specific data without needing to constantly
     update the main handlers.

   - Drop unused function declarations

  Selftests:

   - Add testcases to x86's sync_regs_test for detecting KVM TOCTOU bugs

   - Add support for printf() in guest code and covert all guest asserts
     to use printf-based reporting

   - Clean up the PMU event filter test and add new testcases

   - Include x86 selftests in the KVM x86 MAINTAINERS entry"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (279 commits)
  KVM: x86/mmu: Include mmu.h in spte.h
  KVM: x86/mmu: Use dummy root, backed by zero page, for !visible guest roots
  KVM: x86/mmu: Disallow guest from using !visible slots for page tables
  KVM: x86/mmu: Harden TDP MMU iteration against root w/o shadow page
  KVM: x86/mmu: Harden new PGD against roots without shadow pages
  KVM: x86/mmu: Add helper to convert root hpa to shadow page
  drm/i915/gvt: Drop final dependencies on KVM internal details
  KVM: x86/mmu: Handle KVM bookkeeping in page-track APIs, not callers
  KVM: x86/mmu: Drop @slot param from exported/external page-track APIs
  KVM: x86/mmu: Bug the VM if write-tracking is used but not enabled
  KVM: x86/mmu: Assert that correct locks are held for page write-tracking
  KVM: x86/mmu: Rename page-track APIs to reflect the new reality
  KVM: x86/mmu: Drop infrastructure for multiple page-track modes
  KVM: x86/mmu: Use page-track notifiers iff there are external users
  KVM: x86/mmu: Move KVM-only page-track declarations to internal header
  KVM: x86: Remove the unused page-track hook track_flush_slot()
  drm/i915/gvt: switch from ->track_flush_slot() to ->track_remove_region()
  KVM: x86: Add a new page-track hook to handle memslot deletion
  drm/i915/gvt: Don't bother removing write-protection on to-be-deleted slot
  KVM: x86: Reject memslot MOVE operations if KVMGT is attached
  ...

Merge tag 'drm-misc-next-fixes-2023-09-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

Short summary of fixes pull:

* ivpu: Replace strncpy
* nouveau: Fix fence state in nouveau_fence_emit()

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901070123.GA6987@linux-uq9g

net: enetc: distinguish error from valid pointers in enetc_fixup_clear_rss_rfs()

enetc_psi_create() returns an ERR_PTR() or a valid station interface
pointer, but checking for the non-NULL quality of the return code blurs
that difference away. So if enetc_psi_create() fails, we call
enetc_psi_destroy() when we shouldn't. This will likely result in
crashes, since enetc_psi_create() cleans up everything after itself when
it returns an ERR_PTR().

Fixes: f0168042a212 ("net: enetc: reimplement RFS/RSS memory clearing as PCI quirk")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/netdev/582183ef-e03b-402b-8e2d-6d9bb3c83bd9@moroto.mountain/
Suggested-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230906141609.247579-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Revert "net: team: do not use dynamic lockdep key"

This reverts commit 39285e124edbc752331e98ace37cc141a6a3747a.

Looks like the change has unintended consequences in exposing
objects before they are initialized. Let's drop this patch
and try again in net-next.

Reported-by: syzbot+44ae022028805f4600fc@syzkaller.appspotmail.com
Fixes: 39285e124edb ("net: team: do not use dynamic lockdep key")
Link: https://lore.kernel.org/all/20230907103124.6adb7256@kernel.org/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>