amdgpu_vm_init() initializes vm->last_update, vm->last_unlocked and
vm->last_tlb_flush with references to the stub fence taken via
dma_fence_get_stub(). The error label at the end of the function
releases the last_unlocked and last_tlb_flush references with
dma_fence_put(), but the reference stored in vm->last_update is never
dropped, so whenever the page table root creation, the reservation of
the root BO or the PASID registration fails, the stub fence reference
leaks.
Drop the vm->last_update reference together with the other stub fence
references on the error path.
Fixes: 187916e6ed ("drm/amdgpu: install stub fence into potential unused fence pointers")
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
amdgpu_acpi_enumerate_xcc() looks up each XCC ACPI device with
acpi_dev_get_first_match_dev(), which takes a reference to the device.
The reference is dropped with acpi_dev_put() after the XCC info is
initialized, but if the kzalloc_obj() allocation of the XCC info fails
the function returns -ENOMEM without releasing the reference, leaking
the last reference to the ACPI device.
Drop the ACPI device reference on the allocation failure path before
returning.
Fixes: 4d5275ab0b ("drm/amdgpu: Add parsing of acpi xcc objects")
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
amdgpu_ring_init() initializes ring->vmid_wait with a reference to the
stub fence taken via dma_fence_get_stub(). When a later step of the
initialization fails, e.g. amdgpu_fence_driver_init_ring(), a writeback
slot allocation or the ring buffer allocation, the function returns an
error without releasing the stub fence reference and the reference is
leaked if the ring is torn down without amdgpu_ring_fini().
Move the stub fence assignment to the end of the initialization, right
before the ring is registered with the GPU scheduler, where no further
failure is possible. The stub fence is only consumed by command
submission handling in amdgpu_ids.c once the ring is up and running, so
nothing reads it during the error-prone part of the initialization.
Fixes: 48e9fbd1a2 ("drm/amdgpu: initialize the vmid_wait with the stub fence")
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The size is stored and cleared in init/fini but never used to for
anything else like copy. Drop the size and use pointer for init/fini
checks.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Allocate the right power context objects in smu v14 and smu v15
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
kfd_dev_mapping caches the address_space of the first /dev/kfd opener
so that the GPU reset path can call unmap_mapping_range() to zap all
userspace mappings of doorbell and MMIO ranges. This design has two
bugs that both manifest under SRIOV with multiple containers:
1. Use-after-free / rwsem deadlock. The cached pointer refers to an
inode owned by the first opener's container. When that container
exits and its inode is released, kfd_dev_mapping becomes a dangling
pointer. A subsequent GPU reset dereferences it inside
unmap_mapping_range(), which takes i_mmap_rwsem on the freed inode,
causing a hard hang observable as an uninterruptible rwsem wait.
2. Multi-container gap. Only the first opener's address_space is cached;
VMAs created by later openers live in a different address_space and
are never reached by unmap_mapping_range(). After a GPU reset those
stale mappings keep doorbell and MMIO pages accessible to guest
userspace with no GPU behind them, risking PCIe transaction timeouts
and NMI panics.
Fix both bugs with the same approach used by DRM core (drm_drv.c):
create a private pseudo-filesystem at module init time and allocate one
anonymous inode from it. In kfd_open() redirect every opener's
file->f_mapping to that inode's address_space. The inode is
module-owned, lives exactly as long as the amdgpu module, and collects
VMAs from all openers in one address_space. A single
unmap_mapping_range() call in the reset path then correctly reaches
every container's mappings with no dangling pointer risk.
The hang manifests as an NMI backtrace on the GPU reset workqueue stuck
spinning in rwsem_down_read_slowpath() with a corrupted i_mmap_rwsem:
Workqueue: amdgpu-reset-dev xgpu_ai_mailbox_flr_work [amdgpu]
Call Trace:
<TASK>
kvm_wait+0x1f/0x40
__pv_queued_spin_lock_slowpath+0x31d/0x3a0
_raw_spin_lock_irq+0x51/0x80
rwsem_down_read_slowpath+0xb3/0x550
down_read+0x48/0xd0
unmap_mapping_range+0x71/0x140
kfd_dev_unmap_mapping_range+0x5b/0x140 [amdgpu]
amdgpu_amdkfd_clear_kfd_mapping+0xd8/0x190 [amdgpu]
amdgpu_device_gpu_recover+0x232/0x450 [amdgpu]
xgpu_ai_mailbox_flr_work+0xb5/0xc0 [amdgpu]
process_one_work+0x18e/0x3e0
worker_thread+0x2e3/0x420
kthread+0x10a/0x230
Fixes: 70cadefcc6 ("drm/amdgpu: unmap all user mappings of framebuffer and doorbell before mode1 reset")
Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
GC reset is not released during sw init and hence it shouldn't be
accessed. Move spm vmid programming to hw init phase. This programming
may later be overridden with the job's vmid.
Fixes: ad5f1ee0a9 ("drm/amdgpu: Add initial support for gfx v12_1")
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Use the common mp1 ras manager interface for MP1 v13_0.
Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add a generic MP1 interface to query the status of RAS-related
SMU features, including the PMFW EEPROM feature.
Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When MES fails to respond to a packet, the existing failure log only
prints the op name. Add fence_wait_ret and the packet's status word to
the same message. status_ptr is written directly by MES as part of
completing the packet, independently of the ring fence that
fence_wait_ret waits on, so a nonzero status despite a timed-out
fence_wait_ret narrows the failure to the trailing ring/query-status
packet rather than the original request.
Assisted-by: Claude:claude-sonnet-5
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When MES fails to respond to a packet, the existing failure log only
prints the op name. Add fence_wait_ret and the packet's status word to
the same message. status_ptr is written directly by MES as part of
completing the packet, independently of the ring fence that
fence_wait_ret waits on, so a nonzero status despite a timed-out
fence_wait_ret narrows the failure to the trailing ring/query-status
packet rather than the original request.
Assisted-by: Claude:claude-sonnet-5
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When MES fails to respond to a packet, the existing failure log only
prints the op name. Add fence_wait_ret and the packet's status word to
the same message, so a fence-wait timeout (MES itself stalled) can be
told apart from a fast explicit rejection (fence signaled, but the low
status word is 0) directly from the log, along with the MES-reported
error code carried in the high status word for the latter case.
Assisted-by: Claude:claude-sonnet-5
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
vcn_v4_0_3_reset_jpeg_pre_helper() passes adev->video_timeout directly
to amdgpu_fence_wait_polling(), whose timeout parameter is documented
and implemented in usecs (busy-wait loop decrementing by udelay(2)).
adev->video_timeout is set in jiffies by
amdgpu_device_get_job_timeout_settings(), via msecs_to_jiffies().
Passing it unconverted means the intended ~2s wait for outstanding
JPEG fences to complete before the JPEG queue is torn down actually
lasts only a couple of microseconds (HZ jiffies interpreted as usecs),
so pending jobs are almost never given a real chance to finish before
the reset path forces completion in the following helper.
Convert the jiffies value to usecs with jiffies_to_usecs() before
passing it to amdgpu_fence_wait_polling().
Fixes: d25c67fd9d ("drm/amdgpu/vcn4.0.3: rework reset handling")
Cc: Jesse.Zhang <Jesse.Zhang@amd.com>
Assisted-by: Claude:claude-sonnet-5
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
vcn_v5_0_1_reset_jpeg_pre_helper() passes adev->video_timeout directly
to amdgpu_fence_wait_polling(), whose timeout parameter is documented
and implemented in usecs (busy-wait loop decrementing by udelay(2)).
adev->video_timeout is set in jiffies by
amdgpu_device_get_job_timeout_settings(), via msecs_to_jiffies().
Passing it unconverted means the intended ~2s wait for outstanding
JPEG fences to complete before the JPEG queue is torn down actually
lasts only a couple of microseconds (HZ jiffies interpreted as usecs),
so pending jobs are almost never given a real chance to finish before
the reset path forces completion in the following helper.
Convert the jiffies value to usecs with jiffies_to_usecs() before
passing it to amdgpu_fence_wait_polling().
Fixes: fab47d2db5 ("drm/amdgpu/vcn5.0.1: rework reset handling")
Cc: Jesse.Zhang <Jesse.Zhang@amd.com>
Assisted-by: Claude:claude-sonnet-5
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When one side of UALink nodes reboots, its ring wptr resets to 0 while
the peer keeps a stale value. Read the remote wptr and adopt it as the
local wptr and rptr to resync, before the first message is sent. Either
side can notice first, so do this both when setting up the connection
and when receiving the HELLO from the peer.
On the sdma path, read the wptr in a fence callback because the IB buffer
holding the result is recycled once the fence signals, so reading it
after dma_fence_wait_timeout() is too late. The lsdma path copies
synchronously, so it reads the wptr directly.
Take peer->lock in the callers (amdgpu_ualink_remote_interrupt and
amdgpu_ualink_remote_shootdown) instead of in amdgpu_ualink_send_command,
so the ring->ready check and the send are atomic against a concurrent
ring reset.
Move the rptr refresh and ring-full check out of amdgpu_ualink_send_command()
into amdgpu_ualink_ring_check_space(), so it runs under the caller's
peer->lock before the job is allocated.
On a failed NPA-REQ send, reset the connection like the NPA-RSP timeout path
already does, so the next attempt resyncs the ring wptr.
On connection reset, amdgpu_ualink_reset_peer_rings() only clears
ring->ready, so the writeback address is re-registered on the next send.
v10:
- Fix the resync missed on the receiving side: after a reboot the peer
may send HELLO before we set up the connection, so resync the ring
wptr in amdgpu_ualink_process_hello_msg() too.
v9:
- Fix the unnecessary connection reset after an app exits: the peer is
idle here but still busy handling NPA revokes on the remote, so the
HELLO reset a healthy connection. Only send it if the wptr changed.
- Resync both rings together under peer->lock, read both remote wptr
before updating either so a failed read changes nothing.
v8:
- Fix regression with concurrent import ioctls: do the idle check and
ring reset in amdgpu_ualink_setup_connection() under conn_state->lock,
and return -EAGAIN for IN_PROGRESS/PENDING first.
- Reset the peer rings only, the imp/exp xarray cleanup is not needed to
resync wptr.
v7:
- With v6 reboot one node of vPOD test passed on minirack.
- Use the per-remote imported and exported handle lists for the idle
check instead of walking the xarrays.
- Rename amdgpu_ualink_resync_peer_rings() to
amdgpu_ualink_reset_peer_rings(), it only clears ring->ready.
v6:
- Check idleness per remote accelerator instead of globally, and reset
the stale connection at the import ioctl so the peer re-runs the
HELLO handshake after a reboot.
v5:
- Resync the ring pointers at the import ioctl when the connection is
completely idle (no exported or imported BOs), so the first command
from a new application after a remote reboot/reset succeeds.
- Put the sdma wptr read fence callback on the stack instead of
allocating it; it is cancelled on timeout so it never outlives the
call.
v4:
- Cancel the sdma fence callback on the wait timeout/failure path so it
cannot write into the caller's stack after the function returns, and
free the callback state in one place.
v3:
- Resync both rings at connection setup instead of on the send path.
- Set the writeback rptr too, the stale value disagrees with the
resynced wptr until the remote FW writes it back.
v2:
- Match the FW change: resync wptr only on the first send or after a
timeout, instead of checking the remote periodically.
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Mukul Joshi <mukul.joshi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
amdgpu_generate_ualink_handle() continues when handle_lo is zero. For
accelerator ID 0, the random value can become zero after the low 10 bits
are cleared. This path reaches while (!unique) without assigning unique.
Clang's -Wconditional-uninitialized reports the read. A reduced
MemorySanitizer test reports use-of-uninitialized-value at the loop
condition.
If the uninitialized value ends the loop, handle 0 is inserted into
exp_xa while robj->ualink_handle_lo still says that the BO has no handle.
A later export can create another entry for the same BO.
Initialize unique to false so the zero-handle path repeats the loop.
Fixes: c67cb19811 ("drm/amdgpu: Implement UALink handle export")
Assisted-by: LLM
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Function amdgpu_userq_start_hang_detect_work() calls msecs_to_jiffies()
on adev->gfx_timeout/compute_timeout/sdma_timeout before arming
hang_detect_work. These timeout values already hold jiffies values from
amdgpu_device_get_job_timeout_settings() at device init.
This silently shrinks the real hang-detect deadline to (2 * HZ) ms
instead of the intended timeout. e.g. 500ms instead of the 2000ms
default on a CONFIG_HZ=250 kernel, only coincidentally correct at
HZ=1000. The shortened window is easily exceeded by ordinary
fence-completion latency, causing hang_detect_work to fire and
trigger a per-queue or full GPU reset for queues that are not
actually hung.
Pass the jiffies value directly to queue_delayed_work() instead of
converting it a second time.
Fixes: fc3336be9c ("drm/amd/amdgpu: Add independent hang detect work for user queue fence")
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Commit 0a6da5dcfe ("drm/amdgpu: Improve ualink state transitions")
introduced an access to info->accel_state before checking whether info
is NULL.
Move the access after the NULL check to avoid a potential NULL pointer
dereference.
Fixes: 0a6da5dcfe ("drm/amdgpu: Improve ualink state transitions")
Reported-by: Dan Carpenter <error27@gmail.com>
Cc: Lijo Lazar <lijo.lazar@amd.com>
Cc: Felix Kuehling <felix.kuehling@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Use uniras generic mp1 message to enable/disable
aca debug mode on mp1 v13_0.
Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add pmfw-managed eeprom support for mp1_v13_0.
Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Retrieve ras error info via common interface and message for mp1_v13_0.
Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The eviction fence suspend worker waits for every pending userq fence
from inside a dma_fence_begin_signalling() critical section. Waiting on
another DMA fence while responsible for signalling one violates the
cross-driver fence contract and is reported by lockdep as a
dma_fence_map dependency.
Move the wait before dma_fence_begin_signalling(). Keep userq_mutex held
so queue lifetime remains stable while inspecting last_fence.
Fixes: fc61df1516 ("drm/amdgpu: annotate eviction fence signaling path")
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add GetRmaStatus message for smu_v13_0_12 and smu_v15_0_8.
Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Kevin Wang <kevin.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The MES event-log/MSCRATCH region is only zeroed once at sw_init. On the
resume path (hw_init without sw_init) it retains stale data, so with
mes_log_enable=1 the MES firmware walks stale pointers on activation and
triggers a recoverable CPC page fault:
[gfxhub] page fault (src_id:0 ring:153 vmid:0 pasid:0)
in page starting at address 0x000000855c237000 from client 10
GCVM_L2_PROTECTION_FAULT_STATUS:0x00000B33
Faulty UTCL2 client ID: CPC (0x5)
MORE_FAULTS: 0x1 WALKER_ERROR: 0x1 PERMISSION_FAULTS: 0x3
MAPPING_ERROR: 0x1 RW: 0x0
Re-clear it before unhalting MES.
Reviewed-by: James Zhu <James.Zhu@amd.com>
Tested-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
In dm_update_crtc_state(), when a modeset is required the newly created
stream is stored in dm_new_crtc_state->stream and an extra reference is
taken with dc_stream_retain(). The reference returned by
create_validate_stream_for_sink() is released as an extra reference at
the skip_modeset label, leaving the stream owned by the new CRTC state.
If amdgpu_dm_check_crtc_color_mgmt() fails afterwards, the code jumps
to the fail label which releases new_stream again. Since the extra
reference was already released at skip_modeset, this drops the
reference owned by dm_new_crtc_state->stream and the stream is
released while the atomic state still points to it, leading to a
premature free of the dc stream.
Set new_stream to NULL after releasing the extra reference at the
skip_modeset label so that a later goto fail cannot release the
reference owned by the new CRTC state.
Fixes: 7cd4b70091 ("drm/amd/display: Rework CRTC color management")
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The critical region v2 patches clear the fw_reserve.p_pf2vf variable after
pf2vf data is read the first time. have_atomics_support relies on that
variable to check for PCIe atomic ops support.
Move have_atomics_support check for SRIOV VFs to be when pf2vf data is
read.
Signed-off-by: Victor Lu <victorchengchi.lu@amd.com>
Reviewed-by: Ellen Pan <yunru.pan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Enable UniRAS for psp v15_0_8.
Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The previous change set CP_HQD_PQ_CONTROL.SCOPE=3 (SYSTEM) only for KFD
AQL queues, but PM4 queues and the kernel-managed compute (KCQ) queues
can also use non-coherently cached ring buffers and hit the same
stale-packet problem.
Set the scope for both PM4 queues and KCQs as well.
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Backmerge tag 'v7.3-rc4' into drm-next
Linux 7.3-rc4
Requested by Philipp Stanner for
2ab510e631 would be needed as a groundlayer
for further patches that extend the locking in drm_sched
Signed-off-by: Dave Airlie <airlied@redhat.com>
Since the MHI HELLO exchange was relocated, it is sent only at device
registration. During a suspend-resume cycle, the firmware in WiFi
cards such as WCN7850 indefinitely waits for another HELLO,
triggering:
ath12k_wifi7_pci 0004:01:00.0: timeout while waiting for restart complete
ath12k_wifi7_pci 0004:01:00.0: failed to resume core: -110
Fix this by triggering the handshake from resume_early in the MHI
transport.
Validated on Qualcomm X1E-801800 on Lenovo Slim 7x across 10
suspend-resume cycles.
Fixes: 544d85de4d ("net: qrtr: Send HELLO message on endpoint register")
Signed-off-by: Daniel J Blueman <daniel@quora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Reported-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Link: https://lore.kernel.org/all/6257c447-788d-4362-851e-0d552bcf7c56@oss.qualcomm.com/
Tested-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Reported-by: Vlastimil Babka (SUSE) <vbabka@suse.com>
Link: https://lore.kernel.org/all/ab1491bb-cca5-4145-ac7d-31c966abf7b4@suse.com/
Tested-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Reported-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/all/87a4plsg4w.wl-tiwai@suse.de/
Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bunch of core and driver fixes:
- Couple of fixes in core around dma_chan_put() for kref underflow, user
after free bug and waiting for rcu readers for dma devices
- mmp sg length and wrong extended DRCMR base for SpacemiT K3
- hardware buffer descriptor chain fix for xilinx dma
- sun6i fixes for status behaviour and dma position registers
- runtime pm reference leak fix for sprd driver
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Merge tag 'dmaengine-fix-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
- A couple of fixes in core around dma_chan_put() for kref underflow,
use-after-free and waiting for rcu readers for dma devices
- mmp sg length and wrong extended DRCMR base for SpacemiT K3
- hardware buffer descriptor chain fix for xilinx dma
- sun6i fixes for status behaviour and dma position registers
- runtime pm reference leak fix for sprd driver
* tag 'dmaengine-fix-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
dmaengine: mmp_pdma: fix wrong sg length in mmp_pdma_prep_slave_sg()
dmaengine: xilinx_dma: Fix hardware buffer descriptor chain after cyclic DMA
dmaengine: pxa: fix double counting of the hw descriptors
dmaengine: sun6i: fix undefined behaviour in sun6i_dma_tx_status
dmaengine: sun6i: fix non-atomic read of DMA position registers
dmaengine: xilinx_dma: Fix hardware buffer descriptor reuse order
dmaengine: wait for RCU readers before releasing dma_device
dmaengine: fix use-after-free in dma_chan_put() and dma_release_channel()
dmaengine: Fix device kref underflow in dma_chan_put()
dmaengine: add dma_device_get() helper
dmaengine: sprd: Fix runtime PM reference leak in probe
dmaengine: ti: k3-udma-glue: fix NULL dereference in k3_udma_glue_release_rx_chn()
dmaengine: mmp_pdma: fix wrong extended DRCMR base for SpacemiT K3
- Cadence ensure work completion before clock stop
- Disable ghost Realtek on Asus GX651AX
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Merge tag 'soundwire-7.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire fixes from Vinod Koul:
- Cadence: ensure work completion before clock stop
- Disable ghost Realtek on Asus GX651AX
* tag 'soundwire-7.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: cadence_master: wait and cancel cdns->work before clock stop
soundwire: dmi-quirks: Disable ghost Realtek on Asus GX651AX
- Reject the loading of a potentially problematic microcode version
on Intel Granite Rapids systems (Chang S. Bae)
- On FRED, reconstruct the proper #GP context for rejected INT
instructions, to fix a signal ABI regression (Matthew Schwartz)
- Add a test for this signal ABI regression the x86
self-test suite (Matthew Schwartz)
- Don't emit the new and not yet properly supported EGPR instructions
(%r16-%r31) on CONFIG_X86_NATIVE_CPU=y builds (Chang S. Bae)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Reject the loading of a potentially problematic microcode version
on Intel Granite Rapids systems (Chang S. Bae)
- On FRED, reconstruct the proper #GP context for rejected INT
instructions, to fix a signal ABI regression (Matthew Schwartz)
- Add a test for this signal ABI regression the x86
self-test suite (Matthew Schwartz)
- Don't emit the new and not yet properly supported EGPR instructions
(%r16-%r31) on CONFIG_X86_NATIVE_CPU=y builds (Chang S. Bae)
* tag 'x86-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/build/64: Prevent native builds from generating EGPR use
selftests/x86: Check signal state for rejected software interrupts
x86/fred: Reconstruct the #GP context for rejected INT instructions
x86/microcode/intel: Reject problematic loading on Granite Rapids systems
- Fix timer signal <-> exec() race, to prevent UAF (Thomas Gleixner)
- Clean up POSIX CPU timers right after de_thread(), to prevent UAF
(Hyunwoo Kim)
- Fix POSIX CPU timers race between expiry and timer_settime(),
to prevent UAF (Thomas Gleixner)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer race fixes from Ingo Molnar:
- Fix timer signal <-> exec() race, to prevent UAF (Thomas Gleixner)
- Clean up POSIX CPU timers right after de_thread(), to prevent UAF
(Hyunwoo Kim)
- Fix POSIX CPU timers race between expiry and timer_settime(),
to prevent UAF (Thomas Gleixner)
* tag 'timers-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list
exec: Cleanup POSIX timers right after de_thread()
signal: Prevent exec() race
present, but development headers (binutils-dev) are not
(Ulises Mendez Martinez)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix from Ingo Molnar:
- Fix objtool build error on systems where libopcodes is
present, but development headers (binutils-dev) are not
(Ulises Mendez Martinez)
* tag 'objtool-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Validate disassembler headers in libopcodes probe
as well, to avoid races with (private) futex waiters
(Peter Zijlstra)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex fix from Ingo Molnar:
- Also allocate a default private futex hash on vfork() as well, to
avoid races with (private) futex waiters (Peter Zijlstra)
* tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Also allocate private hash on vfork()
A few driver specific fixes, none of them particularly severe or
unusual.
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Merge tag 'spi-fix-v7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few driver specific fixes, none of them particularly severe or
unusual"
* tag 'spi-fix-v7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: fsl-qspi: Reprogram the clock rate when the operation frequency changes
spi: spi-zynqmp-gqspi: stop the controller on shutdown
spi: virtio: Use the per-transfer bits per word
spi: spi-qpic-snand: avoid writing QPIC_EBI2_ECC_BUF_CFG register
Fixes mainly for cleanup and error handling, a good part of them
around DMA resource management.
- at91: ensure DMA channels are released on all exit paths
- imx: fix autosuspend cleanup on remove
- qcom-cci: fix device node reference leak
- atr, imx, qcom-geni: set adapter slot to NULL on registration
failure
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Merge tag 'i2c-fixes-7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux
Pull i2c fixes from Andi Shyti:
"Fixes mainly for cleanup and error handling, a good part of them
around DMA resource management:
- at91: ensure DMA channels are released on all exit paths
- imx: fix autosuspend cleanup on remove
- qcom-cci: fix device node reference leak
- atr, imx, qcom-geni: set adapter slot to NULL on registration
failure"
* tag 'i2c-fixes-7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux:
i2c: qcom-cci: fix device_node refcount leak in cci_probe()/cci_remove()
i2c: qcom-geni: release DMA channels on probe error
i2c: imx: release DMA channels on probe error
i2c: at91: release DMA channels on remove and probe error
i2c: atr: fix dangling adapter pointer on add failure
i2c: imx: disable autosuspend on remove
- Fixes for evdev and input compat handling to zero-initialize on-stack
absinfo and force-feedback effect structures before partial or compat
copies from userspace, preventing kernel stack memory disclosure
- Fixes for the Synaptics RMI4 driver to prevent an out-of-bounds read
when writing multi-chunk blocks over SMBus and to avoid a NULL pointer
dereference during suspend/resume when the RMI device is unbound
- Fixes for the soc_button_array driver to propagate -EPROBE_DEFER on
non-Bay Trail/Cherry Trail platforms (fixing broken power and volume
buttons on the Microsoft Surface Pro 11) and to validate the ACPI
package element count before dereferencing
- A fix for the adp5588-keys driver to cache the initial GPIO hardware
state before registering the gpiochip so pre-configured pin states are
not clobbered by GPIO hogs during registration
- A fix for the cyttsp5 touchscreen driver to clamp the device-supplied
HID report size before copying into the response buffer, preventing a
buffer overflow
- A fix for the HP SDC serio driver to use timer_shutdown_sync() on
module exit so the periodic kicker timer cannot rearm itself during
teardown
- A fix for the eeti_ts touchscreen driver to export its OF module alias
so the module autoloads on Device Tree platforms
- Updates to the xpad joystick driver adding support for the Victrix Pro
BFG controller and Azeron devices, and fixing the device type
classification for the PDP Marvel Xbox 360 controller
- Quirks for the i8042 and atkbd drivers to keep the built-in keyboards
functional on the Acer Aspire Go 15 AG15-42P and Xiaomi Redmi Book Pro
16 2026
- A quirk for the Synaptics PS/2 touchpad driver disabling SMBus
InterTouch on the Lenovo ThinkPad T440p (board ID 2722) so the
touchpad and TrackPoint respond immediately at boot
- Other minor updates and documentation fixes, including reading the
"ti,poll-period" property as u32 in tsc2007, adding the mt6572
compatible to the MediaTek keypad Device Tree binding, fixing an
attribute name typo in the trackpoint sysfs ABI documentation, and
documenting that no new LED codes should be added to the input
subsystem.
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Merge tag 'input-for-v7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- Fixes for evdev and input compat handling to zero-initialize on-stack
absinfo and force-feedback effect structures before partial or compat
copies from userspace, preventing kernel stack memory disclosure
- Fixes for the Synaptics RMI4 driver to prevent an out-of-bounds read
when writing multi-chunk blocks over SMBus and to avoid a NULL
pointer dereference during suspend/resume when the RMI device is
unbound
- Fixes for the soc_button_array driver to propagate -EPROBE_DEFER on
non-Bay Trail/Cherry Trail platforms (fixing broken power and volume
buttons on the Microsoft Surface Pro 11) and to validate the ACPI
package element count before dereferencing
- A fix for the adp5588-keys driver to cache the initial GPIO hardware
state before registering the gpiochip so pre-configured pin states
are not clobbered by GPIO hogs during registration
- A fix for the cyttsp5 touchscreen driver to clamp the device-supplied
HID report size before copying into the response buffer, preventing a
buffer overflow
- A fix for the HP SDC serio driver to use timer_shutdown_sync() on
module exit so the periodic kicker timer cannot rearm itself during
teardown
- A fix for the eeti_ts touchscreen driver to export its OF module
alias so the module autoloads on Device Tree platforms
- Updates to the xpad joystick driver adding support for the Victrix
Pro BFG controller and Azeron devices, and fixing the device type
classification for the PDP Marvel Xbox 360 controller
- Quirks for the i8042 and atkbd drivers to keep the built-in keyboards
functional on the Acer Aspire Go 15 AG15-42P and Xiaomi Redmi Book
Pro 16 2026
- A quirk for the Synaptics PS/2 touchpad driver disabling SMBus
InterTouch on the Lenovo ThinkPad T440p (board ID 2722) so the
touchpad and TrackPoint respond immediately at boot
- Other minor updates and documentation fixes, including reading the
"ti,poll-period" property as u32 in tsc2007, adding the mt6572
compatible to the MediaTek keypad Device Tree binding, fixing an
attribute name typo in the trackpoint sysfs ABI documentation, and
documenting that no new LED codes should be added to the input
subsystem
* tag 'input-for-v7.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: hp_sdc - shut down kicker timer on module exit
Input: xpad - add support for Victrix Pro BFG Controller
Input: tsc2007 - read "ti,poll-period" as u32
Input: trackpoint - fix the inertia attribute name in the ABI document
Input: eeti_ts - publish the OF module alias
Input: xpad - add support for Azeron devices
Input: xpad - fix PDP Marvel Xbox 360 controller
Input: document that no new LED codes should be added
Input: soc_button_array - check btns_desc->package.count
Input: soc_button_array - fix MS Surface Pro 11 probe failure
Input: i8042 - add quirk for Acer Aspire Go 15 AG15-42P
Input: synaptics - disable InterTouch on ThinkPad T440p (board id 2722)
Input: cyttsp5 - clamp the HID report size before memcpy
Input: zero ff_effect before compat copy in input_ff_effect_from_user
Input: evdev - zero absinfo before partial copy in EVIOCSABS
Input: synaptics-rmi4 - fix GPF in suspend and resume when unbound
Input: rmi_smbus - fix out-of-bounds read in rmi_smb_write_block()
Input: atkbd - skip deactivate for Xiaomi Redmi Book Pro 16 2026
dt-bindings: input: mediatek,mt6779-keypad: add mt6572
Input: adp5588-keys - cache GPIO state before registering the gpiochip
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Merge tag 'selinux-pr-20260919' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux fixes from Paul Moore:
- Ensure that the cached SELinux access decisions are correct
- Fix the SELinux overlayfs code to properly track the top-level/user
information on multiple stacked overlayfs filesystems
- Fix the SELinux overlayfs code to properly enforce mprotect() access
control policy on all of the different layers in multiple stacked
overlayfs filesystems
* tag 'selinux-pr-20260919' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: recheck intermediate backing files on mprotect()
selinux: preserve user SID across nested backing files
selinux: always fill AVC decision in avc_has_perm_noaudit()
The of_node_put() matching of_node_get() runs after i2c_del_adapter(),
whose trailing memset() zeroes adap->dev and thus adap->dev.of_node,
making the put a no-op and leaking the node on every adapter removal
and error cleanup.
Use a devm action: the pointer is captured at registration, out of
reach of that memset(), and devres runs the put once on probe failure
and detach, replacing the three manual of_node_put() calls. The
setup loop uses the scoped iterator form so the child node is released
automatically if devm_add_action_or_reset() fails mid-loop.
Suggested-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Fixes: 02a4a69667 ("i2c: qcom-cci: don't put a device tree node before i2c_add_adapter()")
Assisted-by: Claude:claude-opus-5
Signed-off-by: Liu Zhenlong <dragonliu2018@gmail.com>
Cc: <stable@vger.kernel.org> # v5.17+
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260818175750.4205-1-dragonliu2018@gmail.com
geni_i2c_init() grabs exclusive GPI tx/rx DMA channels when the serial
engine runs in GPI mode. If i2c_add_adapter() subsequently fails, probe
returns without releasing the channels, because the remove callback is
not invoked after a failed probe.
The adapter-registration failure path used to release the channels via
its err_dma label; that release was dropped when the probe tail was
restructured into geni_i2c_init().
Release the channels on the adapter-registration failure path, mirroring
geni_i2c_remove().
Fixes: d8d3bb127a ("i2c: qcom-geni: Isolate serial engine setup")
Assisted-by: GLM:5.3
Signed-off-by: Shengzhuo Wei <me@cherr.cc>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260827-i2c-dma-channel-leak-v1-3-271d4adc03a0@cherr.cc
i2c_imx_dma_request() acquires exclusive tx/rx DMA channels and is
optional: on errors other than -EPROBE_DEFER the driver falls back to
PIO mode and probe continues. If i2c_add_numbered_adapter() then fails,
probe returns through clk_notifier_unregister without releasing the
channels, because the remove callback is not invoked after a failed
probe.
Release the channels on the probe error path, mirroring
i2c_imx_remove().
Fixes: ce1a78840f ("i2c: imx: add DMA support for freescale i2c driver")
Assisted-by: GLM:5.3
Signed-off-by: Shengzhuo Wei <me@cherr.cc>
Cc: <stable@vger.kernel.org> # v3.19+
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260827-i2c-dma-channel-leak-v1-2-271d4adc03a0@cherr.cc
