There is now a new LT9211 rev. U5, which reports chip ID 0x18 0x01 0xe4 .
The previous LT9211 reported chip ID 0x18 0x01 0xe3 , which is what the
driver checks for right now. Since there is a possibility there will be
yet another revision of the LT9211 in the future, drop the last version
nibble check to allow all future revisions of the chip to work with this
driver.
This fix makes LT9211 rev. U5 work with this driver.
Fixes: 8ce4129e3d ("drm/bridge: lt9211: Add Lontium LT9211 bridge driver")
Signed-off-by: Marek Vasut <marek.vasut@mailbox.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251011110017.12521-1-marek.vasut@mailbox.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Currently the Panthor driver needs the GPU to be powered down
between suspend and resume. If this is not done, then the
MCU_CONTROL register will be preserved as AUTO, which again will
cause a premature FW boot on resume. The FW will go directly into
fatal state in this case.
This case needs to be handled as there is no guarantee that the
GPU will be powered down after the suspend callback on all platforms.
The fix is to call panthor_fw_stop() in "pre-reset" path to ensure
the MCU_CONTROL register is cleared (set DISABLE). This matches
well with the already existing call to panthor_fw_start() from the
"post-reset" path.
Signed-off-by: Ketil Johnsen <ketil.johnsen@arm.com>
Acked-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Fixes: 2718d91816 ("drm/panthor: Add the FW logical block")
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20251008105112.4077015-1-ketil.johnsen@arm.com
In `nouveau_bo_move_prep`, if `nouveau_mem_map` fails, an error code
should be returned. Currently, it returns zero even if vmm addr is not
correctly mapped.
Cc: stable@vger.kernel.org
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Shuhao Fu <sfual@cse.ust.hk>
Fixes: 9ce523cc3b ("drm/nouveau: separate buffer object backing memory from nvkm structures")
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
'entry' should be 'val' which is the loop iterator.
Fixes: 9e931f2e09 ("drm/vmwgfx: Refactor resource validation hashtable to use linux/hashtable implementation.")
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://lore.kernel.org/r/20250926195427.1405237-2-ian.forbes@broadcom.com
Nodes stored in the validation duplicates hashtable come from an arena
allocator that is cleared at the end of vmw_execbuf_process. All nodes
are expected to be cleared in vmw_validation_drop_ht but this node escaped
because its resource was destroyed prematurely.
Fixes: 64ad2abfe9 ("drm/vmwgfx: Adapt validation code for reference-free lookups")
Reported-by: Kuzey Arda Bulut <kuzeyardabulut@gmail.com>
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://lore.kernel.org/r/20250926195427.1405237-1-ian.forbes@broadcom.com
Check that the resource which is converted to a surface exists before
trying to use the cursor snooper on it.
vmw_cmd_res_check allows explicit invalid (SVGA3D_INVALID_ID) identifiers
because some svga commands accept SVGA3D_INVALID_ID to mean "no surface",
unfortunately functions that accept the actual surfaces as objects might
(and in case of the cursor snooper, do not) be able to handle null
objects. Make sure that we validate not only the identifier (via the
vmw_cmd_res_check) but also check that the actual resource exists before
trying to do something with it.
Fixes unchecked null-ptr reference in the snooping code.
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Fixes: c0951b797e ("drm/vmwgfx: Refactor resource management")
Reported-by: Kuzey Arda Bulut <kuzeyardabulut@gmail.com>
Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Ian Forbes <ian.forbes@broadcom.com>
Link: https://lore.kernel.org/r/20250917153655.1968583-1-zack.rusin@broadcom.com
Commit de85488138 ("drm/panthor: Add the scheduler logical block")
handled destruction of a group's queues' drm scheduler entities early
into the group destruction procedure.
However, that races with the group submit ioctl, because by the time
entities are destroyed (through the group destroy ioctl), the submission
procedure might've already obtained a group handle, and therefore the
ability to push jobs into entities. This is met with a DRM error message
within the drm scheduler core as a situation that should never occur.
Fix by deferring drm scheduler entity destruction to queue release time.
Fixes: de85488138 ("drm/panthor: Add the scheduler logical block")
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250919164436.531930-1-adrian.larumbe@collabora.com
Commit 1a194e6c8e ("fbcon: fix integer overflow in fbcon_do_set_font")
introduced an out-of-bounds access by storing data and allocation sizes
in the same variable. Restore the old size calculation and use the new
variable 'alloc_size' for the allocation.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 1a194e6c8e ("fbcon: fix integer overflow in fbcon_do_set_font")
Reported-by: Jani Nikula <jani.nikula@linux.intel.com>
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/15020
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6201
Cc: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: George Kennedy <george.kennedy@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Qianqiang Liu <qianqiang.liu@163.com>
Cc: Shixiong Ou <oushixiong@kylinos.cn>
Cc: Kees Cook <kees@kernel.org>
Cc: <stable@vger.kernel.org> # v5.9+
Cc: Zsolt Kajtar <soci@c64.rulez.org>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Qianqiang Liu <qianqiang.liu@163.com>
Link: https://lore.kernel.org/r/20250922134619.257684-1-tzimmermann@suse.de
Fix integer overflow vulnerabilities in fbcon_do_set_font() where font
size calculations could overflow when handling user-controlled font
parameters.
The vulnerabilities occur when:
1. CALC_FONTSZ(h, pitch, charcount) performs h * pith * charcount
multiplication with user-controlled values that can overflow.
2. FONT_EXTRA_WORDS * sizeof(int) + size addition can also overflow
3. This results in smaller allocations than expected, leading to buffer
overflows during font data copying.
Add explicit overflow checking using check_mul_overflow() and
check_add_overflow() kernel helpers to safety validate all size
calculations before allocation.
Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 39b3cffb8c ("fbcon: prevent user font height or width change from causing potential out-of-bounds access")
Cc: George Kennedy <george.kennedy@oracle.com>
Cc: stable <stable@vger.kernel.org>
Cc: syzbot+38a3699c7eaf165b97a6@syzkaller.appspotmail.com
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Qianqiang Liu <qianqiang.liu@163.com>
Cc: Shixiong Ou <oushixiong@kylinos.cn>
Cc: Kees Cook <kees@kernel.org>
Cc: <stable@vger.kernel.org> # v5.9+
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250912170023.3931881-1-samasth.norway.ananda@oracle.com
pci_set_drvdata sets the value of pdev->driver_data to NULL,
after which the driver_data obtained from the same dev is
dereferenced in oaktrail_hdmi_i2c_exit, and the i2c_dev is
extracted from it. To prevent this, swap these calls.
Found by Linux Verification Center (linuxtesting.org) with Svacer.
Fixes: 1b082ccf59 ("gma500: Add Oaktrail support")
Signed-off-by: Zabelin Nikita <n.zabelin@mt-integration.ru>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://lore.kernel.org/r/20250918150703.2562604-1-n.zabelin@mt-integration.ru
The busy-waiting in `mdelay()` can cause CPU stalls and kernel timeouts
during boot.
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Carol L Soto csoto@nvidia.com<mailto:csoto@nvidia.com>
Fixes: 594e9c04b5 ("drm/ast: Create the driver for ASPEED proprietory Display-Port")
Cc: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.19+
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250917194346.2905522-1-nirmoyd@nvidia.com
If the interrupt occurs before resource initialization is complete, the
interrupt handler/worker may access uninitialized data such as the I2C
tcpc_client device, potentially leading to NULL pointer dereference.
Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Fixes: 8bdfc5dae4 ("drm/bridge: anx7625: Add anx7625 MIPI DSI/DPI to DP")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250709085438.56188-1-loic.poulain@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Commit 6cc44e9618 ("drm: Add directive to format code in comment")
fixes original Sphinx indentation warning as introduced in
471920ce25 ("drm/gpuvm: Add locking helpers"), by means of using
code-block:: directive. It semantically conflicts with earlier
bb324f85f7 ("drm/gpuvm: Wrap drm_gpuvm_sm_map_exec_lock() expected
usage in literal code block") that did the same using double colon
syntax instead. These duplicated literal code block directives causes
the original warnings not being fixed.
Revert 6cc44e9618 to keep things rolling without these warnings.
Fixes: 6cc44e9618 ("drm: Add directive to format code in comment")
Fixes: 471920ce25 ("drm/gpuvm: Add locking helpers")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
A panthor group can have at most MAX_CS_PER_CSG panthor queues.
Fixes: 4bdca11507 ("drm/panthor: Add the driver frontend block")
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> # v1
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250903192133.288477-1-olvaffe@gmail.com
This reverts:
commit bead880022 ("drm/nouveau: Remove waitque for sched teardown")
commit 5f46f5c7af ("drm/nouveau: Add new callback for scheduler teardown")
from the drm/sched teardown leak fix series:
https://lore.kernel.org/dri-devel/20250710125412.128476-2-phasta@kernel.org/
The aforementioned series removed a blocking waitqueue from
nouveau_sched_fini(). It was mistakenly assumed that this waitqueue only
prevents jobs from leaking, which the series fixed.
The waitqueue, however, also guarantees that all VM_BIND related jobs
are finished in order, cleaning up mappings in the GPU's MMU. These jobs
must be executed sequentially. Without the waitqueue, this is no longer
guaranteed, because entity and scheduler teardown can race with each
other.
Revert all patches related to the waitqueue removal.
Fixes: bead880022 ("drm/nouveau: Remove waitque for sched teardown")
Suggested-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://lore.kernel.org/r/20250901083107.10206-2-phasta@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
The bridge has three bootstrap pins which are sampled to determine the
frequency of the external reference clock. The driver will also
(over)write that setting. But it seems this is racy after the bridge is
enabled. It was observed that although the driver write the correct
value (by sniffing on the I2C bus), the register has the wrong value.
The datasheet states that the GPIO lines have to be stable for at least
5us after asserting the EN signal. Thus, there seems to be some logic
which samples the GPIO lines and this logic appears to overwrite the
register value which was set by the driver. Waiting 20us after
asserting the EN line resolves this issue.
Fixes: a095f15c00 ("drm/bridge: add support for sn65dsi86 bridge driver")
Signed-off-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20250821122341.1257286-1-mwalle@kernel.org
The drm_sched_job_unschedulable trace point can access
entity->dependency after it was cleared by the callback
installed in drm_sched_entity_add_dependency_cb, causing:
BUG: kernel NULL pointer dereference, address: 0000000000000020
[...]
Workqueue: comp_1.1.0 drm_sched_run_job_work [gpu_sched]
RIP: 0010:trace_event_raw_event_drm_sched_job_unschedulable+0x70/0xd0 [gpu_sched]
To fix this we either need to keep a reference to the fence before
setting up the callbacks, or move the trace_drm_sched_job_unschedulable
calls into drm_sched_entity_add_dependency_cb where they can be
done earlier.
Fixes: 76d97c870f ("drm/sched: Trace dependencies for GPU jobs")
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://lore.kernel.org/r/20250901124032.1955-1-pierre-eric.pelloux-prayer@amd.com
(cherry picked from commit b2b8af21fe)
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Use disable_work_sync() instead of cancel_work_sync() in ivpu_dev_fini()
to ensure that no new recovery work items can be queued after device
removal has started. Previously, recovery work could be scheduled even
after canceling existing work, potentially leading to use-after-free
bugs if recovery accessed freed resources.
Rename ivpu_pm_cancel_recovery() to ivpu_pm_disable_recovery() to better
reflect its new behavior.
Fixes: 58cde80f45 ("accel/ivpu: Use dedicated work for job timeout detection")
Cc: stable@vger.kernel.org # v6.8+
Signed-off-by: Karol Wachowski <karol.wachowski@intel.com>
Reviewed-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://lore.kernel.org/r/20250808110939.328366-1-jacek.lawrynowicz@linux.intel.com
This ensures that the memory write and the interrupt are properly
ordered and we won't wake up the kernel before the semaphore write has
hit memory.
Fixes: b1ca384772 ("drm/nouveau/gv100-: switch to volta semaphore methods")
Cc: stable@vger.kernel.org
Signed-off-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://lore.kernel.org/r/20250829021633.1674524-2-airlied@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Nouveau has code that when it gets an IRQ with no allowed handler
it disables it to avoid storms.
However with nonstall interrupts, we often disable them from
the drm driver, but still request their emission via the push submission.
Just don't disable nonstall irqs ever in normal operation, the
event handling code will filter them out, and the driver will
just enable/disable them at load time.
This fixes timeouts we've been seeing on/off for a long time,
but they became a lot more noticeable on Blackwell.
This doesn't fix all of them, there is a subsequent fence emission
fix to fix the last few.
Fixes: 3ebd64aa3c ("drm/nouveau/intr: support multiple trees, and explicit interfaces")
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://lore.kernel.org/r/20250829021633.1674524-1-airlied@gmail.com
[ Fix a typo and a minor checkpatch.pl warning; remove "v2" from commit
subject. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This reverts commit 482c7e296e.
The dma_buf field in struct drm_gem_object is not stable over the
object instance's lifetime. The field becomes NULL when user space
releases the final GEM handle on the buffer object. This resulted
in a NULL-pointer deref.
Workarounds in commit 5307dce878 ("drm/gem: Acquire references on
GEM handles for framebuffers") and commit f6bfc9afc7 ("drm/framebuffer:
Acquire internal references on GEM handles") only solved the problem
partially. They especially don't work for buffer objects without a DRM
framebuffer associated.
Hence, this revert to going back to using .import_attach->dmabuf.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Link: https://lore.kernel.org/r/20250715084549.41473-1-tzimmermann@suse.de
The memory target check is a hold-over from a refactor. It's harmless
but distracting, so just remove it.
Fixes: 2541626cfb ("drm/nouveau/acr: use common falcon HS FW code for ACR FWs")
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Link: https://lore.kernel.org/r/20250813001004.2986092-3-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
The 'tag' parameter is passed by value and is not actually used after
being incremented, so remove the increment. It's the function that calls
gm200_flcn_pio_imem_wr that is supposed to (and does) increment 'tag'.
Fixes: 0e44c21708 ("drm/nouveau/flcn: new code to load+boot simple HS FWs (VPR scrubber)")
Reviewed-by: Philipp Stanner <phasta@kernel.org>
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Link: https://lore.kernel.org/r/20250813001004.2986092-2-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Function nvkm_gsp_fwsec_v2() sets 'ret' if the kmemdup() call fails, but
it never uses or returns 'ret' after that point. We always need to release
the firmware regardless, so do that and then check for error.
Fixes: 176fdcbddf ("drm/nouveau/gsp/r535: add support for booting GSP-RM")
Cc: stable@vger.kernel.org # v6.7+
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Link: https://lore.kernel.org/r/20250813001004.2986092-1-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
On some chipsets, which block-linear modifiers are
supported is format-specific. However, linear
modifiers are always be supported. The prior
modifier filtering logic was not accounting for
the linear case.
Cc: stable@vger.kernel.org
Fixes: c586f30bf7 ("drm/nouveau/kms: Add format mod prop to base/ovly/nvdisp")
Signed-off-by: James Jones <jajones@nvidia.com>
Link: https://lore.kernel.org/r/20250811220017.1337-3-jajones@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Current dma-buf vmap semantics require that the mapped buffer remains
in place until the corresponding vunmap has completed.
For GEM-SHMEM, this used to be guaranteed by a pin operation while creating
an S/G table in import. GEM-SHMEN can now import dma-buf objects without
creating the S/G table, so the pin is missing. Leads to page-fault errors,
such as the one shown below.
[ 102.101726] BUG: unable to handle page fault for address: ffffc90127000000
[...]
[ 102.157102] RIP: 0010:udl_compress_hline16+0x219/0x940 [udl]
[...]
[ 102.243250] Call Trace:
[ 102.245695] <TASK>
[ 102.2477V95] ? validate_chain+0x24e/0x5e0
[ 102.251805] ? __lock_acquire+0x568/0xae0
[ 102.255807] udl_render_hline+0x165/0x341 [udl]
[ 102.260338] ? __pfx_udl_render_hline+0x10/0x10 [udl]
[ 102.265379] ? local_clock_noinstr+0xb/0x100
[ 102.269642] ? __lock_release.isra.0+0x16c/0x2e0
[ 102.274246] ? mark_held_locks+0x40/0x70
[ 102.278177] udl_primary_plane_helper_atomic_update+0x43e/0x680 [udl]
[ 102.284606] ? __pfx_udl_primary_plane_helper_atomic_update+0x10/0x10 [udl]
[ 102.291551] ? lockdep_hardirqs_on_prepare.part.0+0x92/0x170
[ 102.297208] ? lockdep_hardirqs_on+0x88/0x130
[ 102.301554] ? _raw_spin_unlock_irq+0x24/0x50
[ 102.305901] ? wait_for_completion_timeout+0x2bb/0x3a0
[ 102.311028] ? drm_atomic_helper_calc_timestamping_constants+0x141/0x200
[ 102.317714] ? drm_atomic_helper_commit_planes+0x3b6/0x1030
[ 102.323279] drm_atomic_helper_commit_planes+0x3b6/0x1030
[ 102.328664] drm_atomic_helper_commit_tail+0x41/0xb0
[ 102.333622] commit_tail+0x204/0x330
[...]
[ 102.529946] ---[ end trace 0000000000000000 ]---
[ 102.651980] RIP: 0010:udl_compress_hline16+0x219/0x940 [udl]
In this stack strace, udl (based on GEM-SHMEM) imported and vmap'ed a
dma-buf from amdgpu. Amdgpu relocated the buffer, thereby invalidating the
mapping.
Provide a custom dma-buf vmap method in amdgpu that pins the object before
mapping it's buffer's pages into kernel address space. Do the opposite in
vunmap.
Note that dma-buf vmap differs from GEM vmap in how it handles relocation.
While dma-buf vmap keeps the buffer in place, GEM vmap requires the caller
to keep the buffer in place. Hence, this fix is in amdgpu's dma-buf code
instead of its GEM code.
A discussion of various approaches to solving the problem is available
at [1].
v3:
- try (GTT | VRAM); drop CPU domain (Christian)
v2:
- only use mapable domains (Christian)
- try pinning to domains in preferred order
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 660cd44659 ("drm/shmem-helper: Import dmabuf without mapping its sg_table")
Reported-by: Thomas Zimmermann <tzimmermann@suse.de>
Closes: https://lore.kernel.org/dri-devel/ba1bdfb8-dbf7-4372-bdcb-df7e0511c702@suse.de/
Cc: Shixiong Ou <oushixiong@kylinos.cn>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://lore.kernel.org/dri-devel/9792c6c3-a2b8-4b2b-b5ba-fba19b153e21@suse.de/ # [1]
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20250821064031.39090-1-tzimmermann@suse.de
If VGA and DP connected together, there will be only one can get crtc.
Add encoder possible_clones to support two connectors enable.
Fixes: 3c7623fb5b ("drm/hisilicon/hibmc: Enable this hot plug detect of irq feature")
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250813094238.3722345-8-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
In some case, the dp link training success at 8.1Gbps, but the sink's
maximum supported rate is less than 8.1G. So change the default 8.1Gbps
link rate to the rate that reads from devices' capabilities.
Fixes: 54063d86e0 ("drm/hisilicon/hibmc: add dp link moduel in hibmc drivers")
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250813094238.3722345-6-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
When hibmc loaded failed, the driver use hibmc_unload to free the
resource, but the mutexes in mode.config are not init, which will
access an NULL pointer. Just change goto statement to return, because
hibnc_hw_init() doesn't need to free anything.
Fixes: b3df5e65cc ("drm/hibmc: Drop drm_vblank_cleanup")
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250813094238.3722345-5-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
The local variable is passed in request_irq (), and there will be use
after free problem, which will make request_irq failed. Using the global
irq name instead of it to fix.
Fixes: b11bc1ae46 ("drm/hisilicon/hibmc: Add MSI irq getting and requesting for HPD")
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250813094238.3722345-4-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Currently the driver missed to clean the i2c adapter when vdac init failed.
It may cause resource leak.
Fixes: a0d078d06e ("drm/hisilicon: Features to support reading resolutions from EDID")
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250813094238.3722345-2-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
a fallback during cpuid helpers reorg
- Initialize reserved fields in the SVSM page validation calls structure
to zero in order to allow for future structure extensions
- Have the sev-guest driver's buffers used in encryption operations be
in linear mapping space as the encryption operation can be offloaded
to an accelerator
- Have a read-only MSR write when in an AMD SNP guest trap to the
hypervisor as it is usually done. This makes the guest user experience
better by simply raising a #GP instead of terminating said guest
- Do not output AVX512 elapsed time for kernel threads because the data
is wrong and fix a NULL pointer dereferencing in the process
- Adjust the SRSO mitigation selection to the new attack vectors
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Merge tag 'x86_urgent_for_v6.17_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Remove a transitional asm/cpuid.h header which was added only as a
fallback during cpuid helpers reorg
- Initialize reserved fields in the SVSM page validation calls
structure to zero in order to allow for future structure extensions
- Have the sev-guest driver's buffers used in encryption operations be
in linear mapping space as the encryption operation can be offloaded
to an accelerator
- Have a read-only MSR write when in an AMD SNP guest trap to the
hypervisor as it is usually done. This makes the guest user
experience better by simply raising a #GP instead of terminating said
guest
- Do not output AVX512 elapsed time for kernel threads because the data
is wrong and fix a NULL pointer dereferencing in the process
- Adjust the SRSO mitigation selection to the new attack vectors
* tag 'x86_urgent_for_v6.17_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpuid: Remove transitional <asm/cpuid.h> header
x86/sev: Ensure SVSM reserved fields in a page validation entry are initialized to zero
virt: sev-guest: Satisfy linear mapping requirement in get_derived_key()
x86/sev: Improve handling of writes to intercepted TSC MSRs
x86/fpu: Fix NULL dereference in avx512_status()
x86/bugs: Select best SRSO mitigation
type of task so that they don't trigger falsely
- Use the write unsafe user access pairs when writing a futex value to prevent
an error on PowerPC which does user read and write accesses differently
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Merge tag 'locking_urgent_for_v6.17_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Borislav Petkov:
- Make sure sanity checks down in the mutex lock path happen on the
correct type of task so that they don't trigger falsely
- Use the write unsafe user access pairs when writing a futex value to
prevent an error on PowerPC which does user read and write accesses
differently
* tag 'locking_urgent_for_v6.17_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking: Fix __clear_task_blocked_on() warning from __ww_mutex_wound() path
futex: Use user_write_access_begin/_end() in futex_put_value()
Commit fde578c862 ("rust: alloc: replace aligned_size() with
Kmalloc::aligned_layout()") provides a public `aligned_layout` function
in `Kamlloc`, but not in `Cmalloc`, and thus uses of it will trigger an
error in `rusttest`.
Such a user appeared in the following commit 22ab0641b9 ("rust: drm:
ensure kmalloc() compatible Layout"):
error[E0599]: no function or associated item named `aligned_layout` found for struct `alloc::allocator_test::Cmalloc` in the current scope
--> rust/kernel/drm/device.rs💯31
|
100 | let layout = Kmalloc::aligned_layout(Layout:🆕:<Self>());
| ^^^^^^^^^^^^^^ function or associated item not found in `Cmalloc`
|
::: rust/kernel/alloc/allocator_test.rs:19:1
|
19 | pub struct Cmalloc;
| ------------------ function or associated item `aligned_layout` not found for this struct
Thus add an equivalent one for `Cmalloc`.
Fixes: fde578c862 ("rust: alloc: replace aligned_size() with Kmalloc::aligned_layout()")
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250816204215.2719559-1-ojeda@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Toolchain and infrastructure:
- Workaround 'rustdoc' target modifiers bug in Rust >= 1.88.0. It will
be fixed in Rust 1.90.0 (expected 2025-09-18).
- Clean 'rustdoc' output before running it to avoid confusing the tool
when files from previous versions remain.
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Merge tag 'rust-fixes-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull rust fixes from Miguel Ojeda:
- Workaround 'rustdoc' target modifiers bug in Rust >= 1.88.0. It will
be fixed in Rust 1.90.0 (expected 2025-09-18).
- Clean 'rustdoc' output before running it to avoid confusing the tool
when files from previous versions remain.
* tag 'rust-fixes-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: kbuild: clean output before running `rustdoc`
rust: workaround `rustdoc` target modifiers bug
- Fix a regression affecting old IDE/PATA device scan and introduced by
the recent link power management cleanups & fixes. The regression
prevented devices from being properly detected (me).
- Fix command duration limits (CDL) feature control: attempting to
enable the feature while NCQ commands are being executed resulted in
a silent failure to enable CDL when needed (Igor).
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Merge tag 'ata-ata-6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Damien Le Moal:
- Fix a regression affecting old IDE/PATA device scan and introduced by
the recent link power management cleanups & fixes. The regression
prevented devices from being properly detected (me)
- Fix command duration limits (CDL) feature control: attempting to
enable the feature while NCQ commands are being executed resulted in
a silent failure to enable CDL when needed (Igor)
* tag 'ata-ata-6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-scsi: Fix CDL control
ata: libata-eh: Fix link state check for IDE/PATA ports
One core change removing the 'w' access flag of attributes that don't
have a set routine (and therefore can't be written to) which should
have no practical impact. The big scsi_debug update is caused by
reformatting lots of arrays and the rest of the bug fixes in drivers
are trivial.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"One core change removing the 'w' access flag of attributes that don't
have a set routine (and therefore can't be written to) which should
have no practical impact. The big scsi_debug update is caused by
reformatting lots of arrays and the rest of the bug fixes in drivers
are trivial"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Remove error print for devm_add_action_or_reset()
scsi: ufs: mediatek: Fix out-of-bounds access in MCQ IRQ mapping
scsi: lpfc: Remove redundant assignment to avoid memory leak
scsi: lpfc: Fix wrong function reference in a comment
scsi: ufs: core: Fix interrupt handling for MCQ Mode
scsi: scsi_debug: Make read-only arrays static const
scsi: core: sysfs: Correct sysfs attributes access rights
Use kvfree() to fix the following Coccinelle/coccicheck warning reported
by kfree_mismatch.cocci:
WARNING kvmalloc is used to allocate this memory at line 10398
Fixes: f728c17fc9 ("accel/habanalabs/gaudi2: move HMMU page tables to device memory")
Reported-by: Qianfeng Rong <rongqianfeng@vivo.com>
Closes: https://patch.msgid.link/20250808085530.233737-1-rongqianfeng@vivo.com
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
[lukas: acknowledge Qianfeng, adjust Thorsten's domain, add Fixes tag]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Cc: stable@vger.kernel.org # v6.9+
Link: https://patch.msgid.link/20240820231028.136126-1-thorsten.blum@toblux.com
I will be leaving Intel soon, Koby Elbaz & Konstantin Sinyuk will take
the role of habanalabs driver maintainers.
Signed-off-by: Yaron Avizrat <yaron.avizrat@intel.com>
Reviewed-by: Koby Elbaz <koby.elbaz@intel.com>
Reviewed-by: Konstantin Sinyuk <konstantin.sinyuk@intel.com>
Link: https://patch.msgid.link/DM4PR11MB55491ACAA33DF29CEF3C67DAE935A@DM4PR11MB5549.namprd11.prod.outlook.com
[lukas: wrap to 72 chars]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
bridge:
- fix OF-node leak
- fix documentation
fbdev-emulation:
- pass correct format info to drm_helper_mode_fill_fb_struct()
panfrost:
- print correct RSS size
amdgpu:
- PSP fix
- VRAM reservation fix
- CSA fix
- Process kill fix
i915:
- Fix the implementation of wa_18038517565 [fbc]
- Do not trigger Frame Change events from frontbuffer flush [psr]
xe:
- Some more xe_migrate_access_memory fixes (Auld)
- Defer buffer object shrinker write-backs and GPU waits (Thomas)
- HWMON fix for clamping limits (Karthik)
- SRIOV-PF: Set VF LMEM BAR size (Michal)
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Merge tag 'drm-fixes-2025-08-16' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Relatively quiet week, usual amdgpu/i915/xe fixes along with a set of
fixes for fbdev format info, which fix some regressions seen in with
rc1.
bridge:
- fix OF-node leak
- fix documentation
fbdev-emulation:
- pass correct format info to drm_helper_mode_fill_fb_struct()
panfrost:
- print correct RSS size
amdgpu:
- PSP fix
- VRAM reservation fix
- CSA fix
- Process kill fix
i915:
- Fix the implementation of wa_18038517565 [fbc]
- Do not trigger Frame Change events from frontbuffer flush [psr]
xe:
- Some more xe_migrate_access_memory fixes (Auld)
- Defer buffer object shrinker write-backs and GPU waits (Thomas)
- HWMON fix for clamping limits (Karthik)
- SRIOV-PF: Set VF LMEM BAR size (Michal)"
* tag 'drm-fixes-2025-08-16' of https://gitlab.freedesktop.org/drm/kernel:
drm/xe/pf: Set VF LMEM BAR size
drm/amdgpu: fix task hang from failed job submission during process kill
drm/amdgpu: fix incorrect vm flags to map bo
drm/amdgpu: fix vram reservation issue
drm/amdgpu: Add PSP fw version check for fw reserve GFX command
drm/xe/hwmon: Add SW clamp for power limits writes
drm/xe: Defer buffer object shrinker write-backs and GPU waits
drm/xe/migrate: prevent potential UAF
drm/xe/migrate: don't overflow max copy size
drm/xe/migrate: prevent infinite recursion
drm/i915/psr: Do not trigger Frame Change events from frontbuffer flush
drm/i915/fbc: fix the implementation of wa_18038517565
drm/panfrost: Print RSS for tiler heap BO's in debugfs GEMS file
drm/radeon: Pass along the format info from .fb_create() to drm_helper_mode_fill_fb_struct()
drm/nouveau: Pass along the format info from .fb_create() to drm_helper_mode_fill_fb_struct()
drm/omap: Pass along the format info from .fb_create() to drm_helper_mode_fill_fb_struct()
drm/bridge: document HDMI CEC callbacks
drm/bridge: Describe the newly introduced drm_connector parameter for drm_bridge_detect
drm/bridge: fix OF node leak
In 32-bit arm, the build fails with:
error[E0308]: mismatched types
--> drivers/gpu/drm/nova/file.rs:42:28
|
42 | getparam.set_value(value);
| --------- ^^^^^ expected `u64`, found `u32`
| |
| arguments to this method are incorrect
|
note: method defined here
--> drivers/gpu/drm/nova/uapi.rs:29:12
|
29 | pub fn set_value(&self, v: u64) {
| ^^^^^^^^^ ------
help: you can convert a `u32` to a `u64`
|
42 | getparam.set_value(value.into());
| +++++++
The reason is that `Getparam::set_value` takes a `u64` (from the UAPI),
but `pci::Device::resource_len()` returns a `resource_size_t`, which is a
`phys_addr_t`, which may be 32- or 64-bit.
Thus add an `into()` call to support the 32-bit case, while allowing the
Clippy lint that complains in the 64-bit case where the type is the same.
Fixes: cdeaeb9dd7 ("drm: nova-drm: add initial driver skeleton")
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Christian Schrefl <chrisi.schrefl@gmail.com>
Link: https://lore.kernel.org/r/20250724165441.2105632-1-ojeda@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-6.17-rc2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
- Fix an assert trigger introduced during the merge window
- Prevent atomic writes to be used with DAX
- Prevent users from using the max_atomic_write mount option without
reflink, as atomic writes > 1block are not supported without reflink
- Fix a null-pointer-deref in a tracepoint
* tag 'xfs-fixes-6.17-rc2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: split xfs_zone_record_blocks
xfs: fix scrub trace with null pointer in quotacheck
xfs: reject max_atomic_write mount option for no reflink
xfs: disallow atomic writes on DAX
fs/dax: Reject IOCB_ATOMIC in dax_iomap_rw()
xfs: remove XFS_IBULK_SAME_AG
xfs: fully decouple XFS_IBULK* flags from XFS_IWALK* flags
xfs: fix frozen file system assert in xfs_trans_alloc
Replace kfree() with kvfree() for memory allocated by kvmalloc().
Compile-tested only.
Cc: stable@vger.kernel.org
Fixes: 8a8b1ec526 ("drm/nouveau/gsp: split rpc handling out on its own")
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Reviewed-by: Timur Tabi <ttabi@nvidia.com>
Acked-by: Zhi Wang <zhiw@nvidia.com>
Link: https://lore.kernel.org/r/20250813125412.96178-1-rongqianfeng@vivo.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
