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Pull NFS client fixes from Anna Schumaker:
- SUNRPC:
- Release lower rpc_clnt if killed waiting for XPRT_LOCKED
- Pin upper rpc_clnt across the TLS connect_worker
- NFS:
- Include MAY_WRITE in open permission mask for O_TRUNC
- Charge unstable writes by request size, not folio size
* tag 'nfs-for-7.2-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: Charge unstable writes by request size, not folio size
NFSv4: include MAY_WRITE in open permission mask for O_TRUNC
SUNRPC: pin upper rpc_clnt across the TLS connect_worker
SUNRPC: release lower rpc_clnt if killed waiting for XPRT_LOCKED
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Add clock ID for the UFS refclk clock in SpacemiT K3 SoC.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260630-06-clk-ufs-support-v1-2-cf7521d1d0fe@kernel.org
Signed-off-by: Yixun Lan <dlan@kernel.org>
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sched_ext schedulers have state in BPF programs and kernel. scx_dump
provides kernel state and BPF program state on error, but this is static
in what it can provide.
Add a sched_ext_exit tracepoint in scx_claim_exit() so that BPF programs
can dynamically inspect scheduler specific state at the moment of exit.
Pass the exiting scx_sched so attached programs can read its state, and,
since exits propagate through a hierarchy of sub-schedulers, identify
which scheduler each event belongs to.
Signed-off-by: Pat Somaru <patso@likewhatevs.io>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> says:
Simple Card has removed platform data support.
We can cleanup and more sync Simple-Card/Audio-Graph-Card/Audio-Graph-Card2.
Link: https://patch.msgid.link/87ik6yxj0t.wl-kuninori.morimoto.gx@renesas.com
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Current code makes old style / new style conversion difficult.
To make future conversions easier to understand, this patch clean up the
code a little. but no functional change.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/871pdmxixq.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Current code makes old style / new style conversion difficult.
To make future conversions easier to understand, this patch clean up the
code a little. but no functional change.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/8733y2xixy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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We are using snd_soc_of_parse_aux_devs() directly, but can use
simple_util_parse_property(). use it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/878q7uxiyr.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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We have simple_util_parse_{routing/widgets/pin_switches}().
These are doing almost same things, but has each own implementation.
Les't adds new simple_util_parse_property() and share the code.
To be more easy cleanup later, change the required parameter from
"card" to "priv".
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/87bjcqxiza.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Wire up a gmem_invalidate_range() call for SNP VMs, and use it to force
vCPUs to reload/recheck their guest-provided VMSA if the backing gmem
page is being invalidated, e.g. is being PUNCH_HOLE'd. Use the same core
logic to handle invalidations as VMX does for the APIC-access page, as the
two concepts are nearly identical: shove the physical address of a page
into the vCPU's control structure:
1. Snapshot the invalidation sequence counter
2. Grab the pfn (from guest_memfd in this case)
3. Acquire mmu_lock for read
4. Re-request reload if retry is needed, otherwise commit the change.
Note, the re-request action in #4 is necessary as KVM's retry logic is
fuzzy, i.e. can get false positives. If the guest_memfd page has been
dropped, at some point a subsequent reload will fail to get a PFN from
guest_memfd, and KVM will fail KVM_RUN. If the retry was due to a false
positive, KVM will retry until there are no relevant MMU notifier events
(and will retry in the "outer" loop, i.e. will drop locks and resched as
needed).
Note #2! Take care to invalidate the VMSA when a relevant memslot is
DELETED or MOVED, as invalidations in response to PUNCH_HOLE are predicated
on memslot bindings (KVM doesn't know what GFN range(s) to invalidate
without a binding). And more importantly, the VMSA mapping requires a
memslot, i.e. must be invalidated if its memslots disappears, regardless of
the state of the underlying guest_memfd inode.
Failure to invalidate the vCPU's control.vmsa_pa (which is checked by
pre_sev_run()) can prevent KVM from properly freeing the page as firmware
will reject the RMPUPDATE to reclaim the page with FAIL_INUSE if the vCPU
is actively running, i.e. if VMSA page is in-use. That in turn leads to an
RMP #PF on the next use, as the page will still be assigned to the SNP VM.
SEV-SNP: RMPUPDATE failed for PFN 78d198, pg_level: 1, ret: 3
SEV-SNP: PFN 0x78d198, RMP entry: [0xfff0000000144001 - 0x000000000000000f]
CPU: 3 UID: 0 PID: 31345 Comm: sev_snp_vmsa_pu Tainted: G U O
Tainted: [U]=USER, [O]=OOT_MODULE
Hardware name: Google, Inc. Arcadia_IT_80/Arcadia_IT_80, BIOS 34.86.0-102 01/25/2026
Call Trace:
<TASK>
dump_stack_lvl+0x54/0x70
rmpupdate+0x12c/0x140
rmp_make_shared+0x3b/0x60
sev_gmem_invalidate+0xe0/0x170 [kvm_amd]
delete_from_page_cache_batch+0x1d8/0x220
truncate_inode_pages_range+0x120/0x3d0
kvm_gmem_fallocate+0x19a/0x270 [kvm]
vfs_fallocate+0x1bc/0x1f0
__x64_sys_fallocate+0x48/0x70
do_syscall_64+0x10a/0x480
entry_SYSCALL_64_after_hwframe+0x4b/0x53
RIP: 0033:0x496c7e
</TASK>
------------[ cut here ]------------
SEV: Failed to update RMP entry for PFN 0x78d198 error -14
WARNING: arch/x86/kvm/svm/sev.c:5160 at sev_gmem_invalidate+0x126/0x170 [kvm_amd], CPU#3: sev_snp_vmsa_pu/31345
CPU: 3 UID: 0 PID: 31345 Comm: sev_snp_vmsa_pu Tainted: G U O
Tainted: [U]=USER, [O]=OOT_MODULE
Hardware name: Google, Inc. Arcadia_IT_80/Arcadia_IT_80, BIOS 34.86.0-102 01/25/2026
RIP: 0010:sev_gmem_invalidate+0x12b/0x170 [kvm_amd]
Call Trace:
<TASK>
delete_from_page_cache_batch+0x1d8/0x220
truncate_inode_pages_range+0x120/0x3d0
kvm_gmem_fallocate+0x19a/0x270 [kvm]
vfs_fallocate+0x1bc/0x1f0
__x64_sys_fallocate+0x48/0x70
do_syscall_64+0x10a/0x480
entry_SYSCALL_64_after_hwframe+0x4b/0x53
RIP: 0033:0x496c7e
</TASK>
irq event stamp: 20689
hardirqs last enabled at (20699): [<ffffffff8e76092c>] __console_unlock+0x5c/0x60
hardirqs last disabled at (20708): [<ffffffff8e760911>] __console_unlock+0x41/0x60
softirqs last enabled at (20722): [<ffffffff8e6cd74e>] __irq_exit_rcu+0x7e/0x140
softirqs last disabled at (20717): [<ffffffff8e6cd74e>] __irq_exit_rcu+0x7e/0x140
---[ end trace 0000000000000000 ]---
BUG: unable to handle page fault for address: ffff99a64d198000
#PF: supervisor write access in kernel mode
#PF: error_code(0x80000003) - RMP violation
PGD 13eb001067 P4D 13eb001067 PUD 78d1d1063 PMD 1184e0063 PTE 800000078d198163
SEV-SNP: PFN 0x78d198, RMP entry: [0x6030000000144001 - 0x000000000000000f]
Oops: Oops: 0003 [#1] SMP
CPU: 3 UID: 0 PID: 31407 Comm: highlanderd_hea Tainted: G U W O
Tainted: [U]=USER, [W]=WARN, [O]=OOT_MODULE
Hardware name: Google, Inc. Arcadia_IT_80/Arcadia_IT_80, BIOS 34.86.0-102 01/25/2026
RIP: 0010:prep_new_page+0x67/0x220
Call Trace:
<TASK>
get_page_from_freelist+0x1c40/0x1c70
__alloc_frozen_pages_noprof+0xca/0x1f0
alloc_pages_mpol+0x10b/0x1b0
alloc_pages_noprof+0x81/0x90
pte_alloc_one+0x1b/0xd0
do_pte_missing+0xdf/0x1020
handle_mm_fault+0x7c7/0xb20
do_user_addr_fault+0x268/0x6b0
exc_page_fault+0x67/0xa0
asm_exc_page_fault+0x26/0x30
RIP: 0033:0x4a6b1e
</TASK>
gsmi: Log Shutdown Reason 0x03
CR2: ffff99a64d198000
---[ end trace 0000000000000000 ]---
RIP: 0010:prep_new_page+0x67/0x220
Drop the pseudo-TODO comment about needing to pin the page if guest_memfd
every supports migration, as integrating with invalidations events means
KVM will Just Work if/when page migration is ever supported (assuming SNP
hardware supports migrating VMSA pages).
Note #3, invalidate() and invalidate_range() have _completely_ different
semantics; the new invalidate_range() is a true invalidation, whereas the
existing invalidate() is really a "make shared" operation. Ignore the
confusing naming and poor Kconfig bundling for the moment to minimize the
delta for LTS kernels, the mess will be cleaned up shortly.
Reported-by: Hyunwoo Kim <imv4bel@gmail.com>
Closes: https://lore.kernel.org/all/aimMWzAf5b3luM0b@v4bel
Fixes: e366f92ea99e ("KVM: SEV: Support SEV-SNP AP Creation NAE event")
Cc: stable@vger.kernel.org
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Cc: Jörg Rödel <joro@8bytes.org>
Cc: Fuad Tabba <tabba@google.com>
Cc: Ackerley Tng <ackerleytng@google.com>
Reviewed-by: Michael Roth <michael.roth@amd.com>
Link: https://patch.msgid.link/20260709204948.1988414-11-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
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Pull drm fixes from Dave Airlie:
"Weekly fixes pull for drm, amdgpu, amdxdna, xe leading the way, some
small core fixes and a nouveau stability fix along with some minor
changes in other drivers.
Seems to be a bit quiter than last week at least.
fb-helper:
- Sync on first active crtc in fb_dirty, rather than first crtc
drm_exec:
- Use direct label in drm_exec
buddy:
- Rework try_harder in the buddy allocator
i915:
- fix underrun on panthor lake
- LT PHY SSC programming fix
- fix some NULL derefs and leaks
nouveau:
- fix a vmm large/small page table update race
xe:
- Fix PTE index in xe_vm_populate_pgtable for chunked binds
- Wait on external BO kernel fences in exec IOCTL
- Remove duplicate include
- Free madvise VMA array on L2 flush failure
- Stub notifier_lock helpers when DRM_GPUSVM=n
amdgpu:
- PSP 15.0.9 update
- SMU 15.0.9 update
- VCN 5.3 fix
- VI ASPM fix
- Userq fix
- lifetime fix for amdgpu_vm_get_task_info_pasid()
- Gfx10 fix
- SMU 14 fix
amdkfd:
- CRIU bounds checking fixes
- secondary context id fix
- Event bounds checking fix
amdxdna:
- Fix uaf in mmap failure path
- A lot of deadlocks, access races and return value fixes
analogix_dp:
- Fix analogix_dp bitshifts during link training
v3d:
- Fix absent indirect bo handling
imagination:
- Make function static to solve compiler warning
- Fix error checking"
* tag 'drm-fixes-2026-07-10' of https://gitlab.freedesktop.org/drm/kernel: (44 commits)
nouveau/vmm: fix another SPT/LPT race
drm/imagination: fix error checking of pvr_vm_context_lookup()
drm/imagination: make pvr_fw_trace_init_mask_ops static
gpu/buddy: bail out of try_harder when alignment cannot be honoured
drm/xe/userptr: Stub notifier_lock helpers when DRM_GPUSVM=n
drm/xe: free madvise VMA array on L2 flush failure
drm/xe: remove duplicate <kunit/test-bug.h> include
drm/xe: Wait on external BO kernel fences in exec IOCTL
drm/xe: Fix PTE index in xe_vm_populate_pgtable() for chunked binds
drm/fb-helper: Only consider active CRTCs for vblank sync
drm/amdkfd: Check bounds on CRIU restore queue type and mqd size
drm/amd/pm: fix smu14 power limit range calculation
drm/amdkfd: Check bounds in allocate_event_notification_slot
amdkfd: properly free secondary context id
drm/amdkfd: Don't acquire buffers during CRIU queue restore
drm/amdkfd: Check bounds on CRIU restore event id
drm/gfx10: Program DB_RING_CONTROL
drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()
drm/amdgpu: trigger GPU recovery when userq destroy fails to unmap a hung queue
drm/amd/amdgpu: disable ASPM on VI if pcie dpm is disabled
...
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https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
Too many robustness fixes to list. Mostly for
- slight out-of-bounds reads of SKBs,
- leaks on error conditions, and
- malformed netlink input rejection.
* tag 'wireless-2026-07-09' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: (46 commits)
wifi: cfg80211: bound element ID read when checking non-inheritance
wifi: brcmfmac: cyw: fix heap overflow on a short auth frame
wifi: brcmfmac: initialize SDIO data work before cleanup
wifi: cfg80211: validate assoc response length before status and IE access
wifi: cfg80211: validate rx/tx MLME callback frame lengths before access
wifi: mac80211: ibss: wait for in-flight TX on disconnect
wifi: mac80211: recalculate rx_nss on IBSS peer capability update
wifi: cfg80211: use wiphy work for socket owner autodisconnect
wifi: mac80211: fix memory leak in ieee80211_register_hw()
wifi: mac80211: free AP_VLAN bc_buf SKBs outside IRQ lock
wifi: mac80211: validate deauth frame length before reason access
wifi: mac80211: avoid non-S1G AID fallback for S1G assoc
wifi: cfg80211: reject empty PMSR peer lists
wifi: cfg80211: reject unsupported PMSR FTM location requests
wifi: cfg80211: validate PMSR FTM preamble range
wifi: cfg80211: validate PMSR measurement type data
wifi: nl80211: constrain MBSSID TX link ID range
wifi: nl80211: validate nested MBSSID IE blobs
wifi: ieee80211: validate MLE common info length
wifi: cfg80211: derive S1G beacon TSF from S1G fields
...
====================
Link: https://patch.msgid.link/20260709115038.243870-3-johannes@sipsolutions.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Provide a platform-specific variant of device_set_of_node_from_dev(). In
addition to bumping the reference count of the OF node being assigned,
it also assigns the fwnode of the platform device.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260706-pdev-fwnode-ref-v3-4-1ff028e33779@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Provide a helper function encapsulating the logic of assigning firmware
nodes to platform devices created with platform_device_alloc(). Make the
kerneldoc state that this is the proper interface for assigning firmware
nodes to dynamically allocated platform devices. This will allow us to
switch to counting the references of the device's firmware nodes in the
future, not only the OF nodes.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260706-pdev-fwnode-ref-v3-3-1ff028e33779@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Encapsulate the reference counting logic for OF nodes assigned to
platform devices created with platform_device_alloc() in a helper
function. Make the kerneldoc state that this is the proper interface for
assigning OF nodes to dynamically allocated platform devices. This will
allow us to switch to counting the references of the device's firmware
nodes, not only the OF nodes.
Reviewed-by: Manuel Ebner <manuelebner@mailbox.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260706-pdev-fwnode-ref-v3-2-1ff028e33779@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Dynamic IDs are only guaranteed to be valid when usb_dynids_lock is held,
as remove_id_store can free the node. Thus, make a copy in
usb_probe_interface. Clarify the documentation that the id parameter is
only valid during the probe.
USB serial has the same pattern, but it does not need fixing as the IDs
cannot be removed via sysfs.
Fixes: 0c7a2b72746a ("USB: add remove_id sysfs attr for usb drivers")
Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260707-usb_dyn_id_uaf-v2-7-632dcf3adfba@garyguo.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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pdo_epr_avs_apdo_max_voltage_mv() extracts the EPR AVS minimum-voltage
field instead of the maximum-voltage field. As a result, an EPR AVS APDO
with different minimum and maximum voltages is decoded as having
identical limits. The currently visible effect is that
tcpm_log_source_caps() reports a min-min voltage range.
Extract PDO_EPR_AVS_APDO_MAX_VOLT in the maximum-voltage accessor.
Fixes: f82890c98f3e ("tcpm: Parse and log AVS APDO")
Signed-off-by: Xu Rao <raoxu@uniontech.com>
Link: https://patch.msgid.link/48301FCEC9F3CA14+20260616085439.987664-1-raoxu@uniontech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently, FunctionFS exposes each USB endpoint as a separate,
unidirectional file descriptor (e.g., `ep1` for IN, `ep2` for OUT).
While this mirrors the underlying hardware structure, it forces
userspace daemons implementing bidirectional protocols to manage
multiple file descriptors. When dealing with legacy protocols which
require exposing a single, bi-directional fd to userspace, this becomes
problematic.
This patch introduces the `FUNCTIONFS_RW_PROXY_EPS` UAPI flag. When
passed in the descriptor header during initialization, FunctionFS
provisions a "rw_proxy" bidirectional file descriptor (e.g., `ep1_rw`)
alongside every pair of IN/OUT endpoints.
Implementation details:
- RW proxy files act as a pure VFS alias, proxying operations
directly to the base ffs_epfile instances. A `read()` proxies to
the OUT endpoint's file, and a `write()` proxies to the IN file.
- Because operations are proxied natively, they reuse the underlying
base endpoint's lock (`epfile->mutex`) and tracking state. This
serializes concurrent I/O, preventing buffer corruption or races
even if userspace mixes transfers across both the rw_proxy and base files
while allowing full-duplex synchronous operations to occur concurrently
without serializing on a single lock.
- Control operations (like IOCTLs) and intentional stalls (via
reverse-direction I/O) must still be issued on the base endpoints, as the
rw_proxy returns `-ENOTTY` for IOCTLs and cannot trigger stalls.
Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Neill Kapron <nkapron@google.com>
Link: https://patch.msgid.link/20260619040609.4010746-5-nkapron@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When transferring data from a USB gadget to a host, a transfer is
considered complete when the host receives a short packet (a packet
smaller than wMaxPacketSize). If the total transfer length is an
exact multiple of wMaxPacketSize, a Zero-Length Packet (ZLP) must
be appended to signal the end of the transfer.
FunctionFS currently provides no mechanism for userspace to instruct
the kernel to set the `req->zero` flag on transfers. Userspace
workarounds, such as manually submitting separate 0-byte requests,
may not be available for legacy protocols which must maintain write
behavior compatibility when moved to functionfs implementations.
To resolve this, introduce a new ioctl, FUNCTIONFS_ENDPOINT_ENABLE_ZLP,
which takes a pointer to a __u32 flag. When enabled, all subsequent
transfers on that endpoint will have the `req->zero` flag set, allowing
the underlying USB Device Controller (UDC) hardware to automatically
append a ZLP only when mathematically required. For logical transfers
chunked across multiple requests, userspace can dynamically toggle this
flag, enabling it only prior to submitting the final chunk.
The flag defaults to false to maintain backward compatibility. Once
enabled, the state is persistent for the lifetime of the endpoint and
will not be reset by opening or closing the endpoint file descriptors.
Assisted-by: Gemini-CLI:gemini-3.1-pro-preview
Signed-off-by: Neill Kapron <nkapron@google.com>
Link: https://patch.msgid.link/20260619040609.4010746-4-nkapron@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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I2C/SPI serial drivers don't use the following struct uart_port variables:
port->membase
port->mapbase
port->iobase
However, they are forced to set membase to a non-zero value so that
uart_configure_port() will succeed because of the following check:
/* If there isn't a port here, don't do anything further. */
if (!port->iobase && !port->mapbase && !port->membase)
return;
Add a new I/O type for SPI and I2C bus devices to remove the need to
implement the kind of above-mentioned ambiguous workarounds to make them
work. Now that UART report functions are using uart_iotype_*() functions,
no more irrelevant I/O information are being printed for UPIO_BUS iotypes.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://patch.msgid.link/20260521-tty-upio-v3-7-bf74567994a0@dimonoff.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Uniformize serial port I/O infos display from three different functions
that display mostly the same information, but with some variations, by
adding a common function.
This make use of new functions uart_iotype_mmio() and
uart_iotype_legacy_io() to simplify and improve code readability.
This will prevent displaying irrelevant information for future IO types
(ex: UPIO_BUS), while also addressing the (eventually) invalid check for
"iotype >= UPIO_MEM".
This also allows us to remove the confusing cast to (unsigned long long)
for iobase which is defined as an unsigned long, and use %pa to display the
mapbase pointer, as it is done in earlycon_print_info().
Replace snprintf with more robust scnprintf so we could perhaps one day get
rid of snprintf() entirely.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://patch.msgid.link/20260521-tty-upio-v3-4-bf74567994a0@dimonoff.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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To help simplify code that check on the io type mode of the port.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://patch.msgid.link/20260521-tty-upio-v3-2-bf74567994a0@dimonoff.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The dynamic array stored in the ring buffer already carries its own
length in the array metadata. There is no need to also store it as a
separate scalar field in the entry struct.
Drop __field(unsigned int, len) and the corresponding __entry->len
assignment, and use __get_dynamic_array_len(data) in the TP_printk for
both the len=%u format argument and the __print_hex() size argument.
This saves 4 bytes per event on the ring buffer.
Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260615-add-tracepoints-for-qcom-geni-serial-v5-1-2efa4c97e0e2@oss.qualcomm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/fixes
soc/tegra: pmc: Fixes for v7.2
This contains two fixes, one for a bad error unwinding path and another
for an #ifdef block that wasn't covering all the combinations correctly.
* tag 'tegra-for-7.2-pmc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: fix #ifdef block in header
drm/tegra: Fix a strange error handling path
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/pza/linux into arm/fixes
Reset controller fixes for v7.2
* Fix the SpacemiT K3 USB2 AHB reset bit location.
* Add missing COMBOPHY_RESET definition for Altera Agilex5.
* Fix the reset-sunxi initialization error path to release the
requested memory region.
* Correct polarity of MIPI CSI resets on NXP i.MX8MQ. The corresponding
fix in the CSI2 driver, 6d79bb8fd2aa, is already contained in v7.2-rc1.
* tag 'reset-fixes-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/pza/linux:
reset: imx7: Correct polarity of MIPI CSI resets on i.MX8MQ
reset: sunxi: fix memory region leak on ioremap failure
dt-bindings: reset: altr: add COMBOPHY_RESET for Agilex5
reset: spacemit: k3: fix USB2 ahb reset
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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These debug helper functions convert enumerated values to appropriate
message and can be useful for userspace tools and other kernel components
that need to interpret AMD PMF state values.
By making them inline functions in the UAPI header, they become available
to both kernel and userspace without code duplication. Also, prefix the
function names with amd_pmf_.
Also, include a case to cover unused enum entries.
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20260609081044.2416731-5-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Relocate commonly used enums from multiple source files into a shared
header file to simplify code structure, improve readability, and
enhance maintainability. Also, remove the initialization of the first
enum member, since it is not needed.
Add the AMD_PMF_ prefix to the laptop_placement and platform_type enums
since these names are overly generic for inclusion in a UAPI header
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20260609081044.2416731-4-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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util IOCTL
Add a bios_output[] to amd_pmf_dev struct and store the latest values for
BIOS output policies when applying PMF policies. This enables the AMD PMF
util layer to expose these BIOS outputs alongside selected thermal and
power metrics to user space via /dev/amdpmf_interface and a new IOCTL,
supporting real-time monitoring tools such as SystemDeck.
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20260609081044.2416731-3-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Add a util layer to AMD PMF that exposes a minimal userspace interface
via a character device for metrics monitoring and feature discovery.
This creates /dev/amdpmf_interface with basic ioctl support to retrieve
PMF metrics such as:
* Power source and power slider position
* Platform type, lid state, and user presence
* Skin temperature and ambient light
* BIOS input parameters (1-10)
* Graphics workload metrics
* CPU C-state residency (average and maximum)
* Socket power consumption
* Auto Mode: Automatic power profile switching based on system activity
* Static Power Slider: User-selectable power profiles
* Policy Builder (Smart PC): Action based policy management
* Dynamic Power Slider AC: Adaptive power profiles when on AC power
* Dynamic Power Slider DC: Adaptive power profiles when on battery
The interface enables smoother integration with userspace tools such as
AMD SystemDeck [1], which is widely used for monitoring and controlling
power and thermal behavior on AMD platforms. These tools help designers
keep major components within thermal limits to ensure proper operation
and enhance overall system stability and reliability.
The feature is gated behind the CONFIG_AMD_PMF_UTIL_SUPPORT Kconfig
option, allowing it to be disabled if not needed. The implementation
uses existing PMF infrastructure to populate data from the TA (Trusted
Application) shared memory buffer.
Link: https://docs.amd.com/v/u/en-US/68773_0.50 [1]
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20260609081044.2416731-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The video_ioctl2() kernel-doc comment says "hancle" and
refers to v4l2_ioctl_ops.unlocked_ioctl.
Fix the typo and refer to v4l2_file_operations.unlocked_ioctl
instead. The unlocked_ioctl member belongs to struct
v4l2_file_operations.
Signed-off-by: Binglin Zhao <1311165354@qq.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Cross-merge networking fixes after downstream PR (net-7.2-rc3).
Conflicts:
tools/testing/selftests/net/lib.sh
dd6a23bac306b ("selftests: net: make busywait timeout clock portable")
895bad9cc4cec ("selftests: net: make busywait timeout clock portable")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The driver and platform data refers to the legacy GPIO API,
doesn't really use it, and also calls some GPIO-related functions
passed as platform data.
This platform data is not used anywhere in the kernel.
I'm not outright deleting the driver, just deleting the bogus
GPIO handling. If outoftree developers want to fix up the
driver the GPIOs should be defined in some kind of firmware
node and be obtained using the gpiod_get*() APIs directly
in the driver, but I don't even know what these GPIOs are
since they are hidden in platform data that is not in the
mainline kernel, so what can I do.
Signed-off-by: Linus Walleij <linusw@kernel.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Currently, the phase offset of time_offset and time_adjust is delivered
by adjusting tick_length in second_overflow(), and immediately draining
time_offset/time_adjust by the amount that the tick_length adjustment is
*estimated* to cause. This is fairly approximate, in part because it is
not always correct to assume that precisely NTP_INTERVAL_FREQ ticks will
occur between one call to second_overflow() and the next. It could also
over and under-run in the final second of delivery.
Instead of inflating tick_length, transfer the intended skew directly
into ntp_error each tick to achieve the desired rate.
In second_overflow(), calculate skew_delta which is the per-tick slew
rate, in the same units as time_offset: (ns << NTP_SCALE_SHIFT) / HZ.
In logarithmic_accumulation(), drain up to 'skew_delta' time units from
time_offset into ntp_error to drive the overall effective rate. The new
ntp_drain_skew() function returns the amount which is actually 'claimed'
by time_offset (and in a future patch, time_adjust). Any overrun which
is delivered by the changed 'mult' (as described below) but not claimed
by ntp_drain_skew() will remain in ntp_error to be corrected away in
subsequent ticks.
Simply transferring the precise amount from time_offset to ntp_error
would be sufficent to make the time *eventually* converge, however the
skew delivered is limited by the choice of { mult, mult+1 } each tick
and thus the convergence would be extremely slow.
In theory we could inflate ntp_err_mult with the magnitude of ntp_error
in the general case — but that would cause overcorrection in a tickless
kernel. Instead, in timekeeping_adjust(), take skew_delta into account
when calculating 'mult', such that the available {mult, mult+1} choices
bracket the overall effective rate *including* the skew, to avoid the
delta just building up in ntp_error.
The effect is that the inflated 'mult' causes ntp_error to grow because
xtime_interval is (e.g.) longer than the true tick_length. But then the
same delta is removed again as it's drained from time_offset.
This gives behaviour equivalent to the old tick_length += delta approach
but with exact per-tick accounting of the time_offset actually imparted
to the clock, and no overrun.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Assisted-by: Kiro:claude-opus-4.8
Link: https://patch.msgid.link/20260621220051.1030462-5-dwmw2@infradead.org
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cycle_interval is an integer number of counter cycles per NTP interval,
so the real time it represents differs from the nominal
NTP_INTERVAL_LENGTH by up to half a counter period. For coarse
clocksources this is significant: the 3.579545 MHz ACPI PM timer at
HZ=1000 rounds 3579.545 cycles up to 3580, making each tick 1.000127 ms
(+127 PPM).
Commit a386b5af8edd ("time: Compensate for rounding on odd-frequency
clocksources") introduced xtime_remainder to compensate for exactly
this, citing the same 127 PPM ACPI PM example. The compensation is
correct and necessary, but it was applied inside the timekeeping
accumulation in timekeeping.c: subtracted in the mult computation in
timekeeping_adjust() and folded into the ntp_error update in
logarithmic_accumulation(). That keeps the base rate correct and leaves
NTP its full symmetric +/-MAXFREQ range rather than +373/-627 PPM, but
the NTP code in ntp.c never sees it: tick_length is computed without the
correction, so ntp.c's notion of how long a tick is disagrees with the
rate timekeeping actually produces.
Make the offset an explicit part of the NTP tick_length instead. Add
ntp_data::cs_tick_adj, a fixed per-second addend that
ntp_update_frequency() includes alongside ntp_tick_adj and time_freq.
tk_setup_internals() computes it from the difference between the real
cycle_interval duration and the nominal interval, stores it in the
timekeeper, and hands it to NTP through a new argument to ntp_clear() --
which already recomputes the frequency and is invoked after every
clocksource (re)configuration. timekeeping_init() now uses TK_UPDATE_ALL
for this; clearing NTP there is otherwise redundant since ntp_init() has
just initialised it.
ntp.c now computes the true tick rate, giving a single source of truth.
Like ntp_tick_adj, cs_tick_adj stays internal to the kernel: userspace
still sees the nominal 1.000000 ms tick via adjtimex and is unaware of
the addends. timekeeping_adjust() and logarithmic_accumulation() use
ntp_tick / xtime_interval directly, and xtime_remainder is removed.
The base-rate arithmetic is unchanged: ntp_tick becomes
xtime_interval << ntp_error_shift, so the mult division yields the same
base mult and the ntp_error accumulation still nets to zero per tick.
Beyond the cleanup of treating all the tick_length contributions
(nominal interval, ntp_tick_adj, cs_tick_adj, time_freq) consistently
as addends in one place, it also prepares for feed-forward discipline:
a future timekeeping_set_reference() will set tick_length to track an
absolute external reference such as a vmclock, and that path needs
ntp.c to own a tick_length that already reflects the clocksource
quantisation, with no hidden correction applied elsewhere.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Assisted-by: Kiro:claude-opus-4.8
Acked-by: John Stultz <jstultz@google.com>
Link: https://patch.msgid.link/20260621220051.1030462-4-dwmw2@infradead.org
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
drm-misc-fixes for v7.2-rc3:
- Fix uaf in amdxdna mmap failure path.
- A lot of deadlocks, access races and return value fixes in amdxdna.
- Fix analogix_dp bitshifts during link training.
- Use direct label in drm_exec.
- Fix absent indirect bo handling in v3d.
- Sync on first active crtc in fb_dirty, rather than first crtc.
- Rework try_harder in the buddy allocator.
- Make imagination function static to solve compiler warning.
- Fix imagination error checking.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/71e5b48b-307f-47f5-8fd5-b60ea43e4196@linux.intel.com
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Commit 97f0b1345219 ("tracing: add trace event for memory-failure")
introduced memory_failure_event in ras subsystem. commit 31807483d395
("mm/memory-failure: remove the selection of RAS") changed
memory_failure_event to memory_failure subsystem. This breaks the
backward compatibility, some user programs rely on it.
Change memory_failure_event to ras subsystem to keep backward
compatibility.
Link: https://lore.kernel.org/20260605081213.154660-1-xieyuanbin1@huawei.com
Fixes: 31807483d395 ("mm/memory-failure: remove the selection of RAS")
Signed-off-by: Xie Yuanbin <xieyuanbin1@huawei.com>
Reported-by: Yi Lai <yi1.lai@intel.com>
Reported-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Closes: https://lore.kernel.org/linux-mm/CY8PR11MB7134346A3E4BB28ECA28D6E989132@CY8PR11MB7134.namprd11.prod.outlook.com
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Tested-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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At the moment, if a virtio balloon device has a page reporting vq but its
size is < PAGE_REPORTING_CAPACITY (32), the balloon driver fails probe.
But, there's no way for host to know this value, so it can easily create a
smaller vq and suddenly adding the reporting capability to the device
makes all of the driver fail. Not pretty.
Add a capacity field to page_reporting_dev_info so drivers can control the
maximum number of pages per report batch.
In virtio-balloon, set the capacity to the reporting virtqueue size,
letting page_reporting adapt to whatever the device provides.
Capacity need not be a power of two. Code previously called out division
by PAGE_REPORTING_CAPACITY as cheap since it was a power of 2, but no
performance difference was observed with non-power-of-2 values.
If capacity is 0 or exceeds PAGE_REPORTING_CAPACITY, it defaults to
PAGE_REPORTING_CAPACITY. The 0 check and the clamping is done in
page_reporting_register(), before the reporting work is scheduled, so we
never get division by 0.
Link: https://lore.kernel.org/444c24cf39f3f3620fc90ef4695bd6b0979f4c4b.1783232420.git.mst@redhat.com
Fixes: b0c504f15471 ("virtio-balloon: add support for providing free page reports to host")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Assisted-by: Claude:claude-opus-4-6
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Gregory Price <gourry@gourry.net>
Acked-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Eugenio Pérez <eperezma@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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My legal and preferred first names are SeongJae and SJ, respectively. I
was using the legal name for commits and tags, while using the preferred
name for conversations. It sometimes confuses people including myself.
Consistently use the preferred name.
Together remove copyright notes on files. Those are only confusing for
people who are not familiar with the law. Meanwhile, we can infer the
information in a better way from git logs and public information.
Link: https://lore.kernel.org/20260630013820.143366-1-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Acked-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Switch qcom_q6v5_pas client driver over to generic PAS TZ APIs. Generic PAS
TZ service allows to support multiple TZ implementation backends like QTEE
based SCM PAS service, OP-TEE based PAS service and any further future TZ
backend service.
Since qcom_q6v5_pas depends on MDT loader for PAS firmware loading, it
has to be switched over to generic PAS APIs in this commit to avoid any
build issues.
Reviewed-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Tested-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com> # Lemans
Tested-by: Vignesh Viswanathan <vignesh.viswanathan@oss.qualcomm.com> # IPQ9650
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260702115835.167602-5-sumit.garg@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into rproc-next
Merge Qualcomm generic pas service from SoC topic branch to faciliate
dependencies for the upcoming remoteproc driver changes.
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drivers-for-7.3
Merge the introduction of the generic Qualcomm Peripheral Authentication
Service abstraction through a topic branch, in order to allow it to be
pulled into other subsystems.
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Qcom platforms has the legacy of using non-standard SCM calls
splintered over the various kernel drivers. These SCM calls aren't
compliant with the standard SMC calling conventions which is a
prerequisite to enable migration to the FF-A specifications from Arm.
OP-TEE as an alternative trusted OS to Qualcomm TEE (QTEE) can't
support these non-standard SCM calls. And even for newer architectures
using S-EL2 with Hafnium support, QTEE won't be able to support SCM
calls either with FF-A requirements coming in. And with both OP-TEE
and QTEE drivers well integrated in the TEE subsystem, it makes further
sense to reuse the TEE bus client drivers infrastructure.
The added benefit of TEE bus infrastructure is that there is support
for discoverable/enumerable services. With that client drivers don't
have to manually invoke a special SCM call to know the service status.
So enable the generic Peripheral Authentication Service (PAS) provided
by the firmware. It acts as the common layer with different TZ
backends plugged in whether it's an SCM implementation or a proper
TEE bus based PAS service implementation.
Reviewed-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Tested-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com> # Lemans
Reviewed-by: Harshal Dev <harshal.dev@oss.qualcomm.com>
Tested-by: Vignesh Viswanathan <vignesh.viswanathan@oss.qualcomm.com> # IPQ9650
Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260702115835.167602-2-sumit.garg@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter, Bluetooth and batman-adv.
Current release - regressions:
- bluetooth: fix using chan->conn as indication to no remote netdev
Current release - new code bugs:
- netfilter: cap to maximum number of expectation per master on
updates
Previous releases - regressions:
- bluetooth:
- fix UAF of hci_conn_params in add_device_complete
- fix null ptr deref in hci_abort_conn()
- igmp: remove multicast group from hash table on device destruction
- batman-adv: prevent TVLV OOB check overflow
- eth: mlx5/mlx5e:
- fix off-by-one in single-FDB error rollback
- skip peer flow cleanup when LAG seq is unavailable
- fix crashes in dynamic per-channel stats and HV VHCA agent
- eth: mana: Sync page pool RX frags for CPU
Previous releases - always broken:
- netfilter:
- mark malformed IPv6 extension headers for hotdrop
- terminate table name before find_table_lock()
- ipvs: use parsed transport offset in TCP state lookup
- sched: act_pedit: fix TOCTOU heap OOB write in tc offload
- ethtool: rss: fix hfunc and input_xfrm parsing on big endian
- ipv4/ipv6: fix UAF and memory leak in IGMP/MLD
- tls: consume empty data records in tls_sw_read_sock()
- eth:
- octeontx2-af: fix VF bringup affecting PF promiscuous state
- gue: validate REMCSUM private option length"
* tag 'net-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (94 commits)
macsec: don't read an unset MAC header in macsec_encrypt()
dibs: loopback: validate offset and size in move_data()
octeontx2-af: fix VF bringup affecting PF promiscuous state
ethtool: rss: Fix hfunc and input_xfrm parsing on big endian
net/mlx5: Fix L3 tunnel entropy refcount leak
net: macb: drop in-flight Tx SKBs on close
net: mana: Sync page pool RX frags for CPU
net: mana: Validate the packet length reported by the NIC
selftests/net: fix EVP_MD_CTX leak in tcp_mmap
ipvs: ensure inner headers in ICMP errors are in headroom
ipvs: use parsed transport offset in SCTP state lookup
ipvs: use parsed transport offset in TCP state lookup
ipvs: pass parsed transport offset to state handlers
netfilter: handle unreadable frags
netfilter: flowtable: support IPIP tunnel with direct xmit
netfilter: flowtable: IPIP tunnel hardware offload is not yet support
netfilter: flowtable: use dst in this direction when pushing IPIP header
netfilter: ipset: allocate the proper memory for the generic hash structure
netfilter: ipset: cleanup the add/del backlog when resize failed
netfilter: ipset: exclude gc when resize is in progress
...
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Implement an IORT ACPI hook to retrieve the acpi_handle of the interrupt
controller handling a specific GSI (if any, on GICv5 systems only the IWB
is represented in firmware with an ACPI device object) and add the IWB to
the list of devices whose dependencies can be detected (and cleared) in
ACPI core to guarantee that probe dependencies for the IWB can be
satisfied.
Enable autodep detection for arm64 by adding the arch_acpi_add_auto_dep()
callback in the ACPI IORT driver.
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-6-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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RISC-V implements arch code to detect probe dependencies for devices and
the interrupt controller the devices GSIs are routed to.
The code itself is arch agnostic apart from an arch specific helper
function required to retrieve the acpi_handle of the interrupt controller
that manages the device GSI interrupt.
In order to enable IRQ probe dependencies detection on other architectures,
move RISC-V IRQ probe dependency detection code to generic ACPI IRQ code.
Allow interrupt controller drivers to register an arch specific function to
determine the acpi_handle for a specific GSI number to use the mechanism if
needed by the respective interrupt controller drivers.
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Sunil V L <sunilvl@oss.qualcomm.com>
Tested-by: Sunil V L <sunilvl@oss.qualcomm.com>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-5-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Code clearing device dependencies in ACPI in drivers through
acpi_dev_clear_dependencies()
requires annoying ifdeffery to make sure it is compiled out on
!CONFIG_ACPI configurations.
Implement a wrapper function to clear device dependencies that can be used
in device drivers without conditional compilation.
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-1-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The core mechanism of drm_gpusvm is HMM, which is fundamentally an
MM side subsystem. A drm_device, enters the picture on the device side at
DMA mapping / GPU bind.
So move struct drm_device from struct drm_gpusvm in drm_gpusvm. Let
drm_gpusvm keep its core neutral and leave device side decisions to
the driver. Make drm_gpusvm a pure MM level object.
- Move the drm_device from struct drm_gpusvm. drm_device now stored in
drm_gpusvm_pages.
- Drop the drm parameter from drm_gpusvm_init()
- Update the xe call sites in xe_svm_init() and other callers.
drm_device does not disappear from the framework, it is
relocated onto each drm_gpusvm_pages where DMA actually happens.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-6-honghuan@amd.com
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Since the pages the physical pages and MM VA range has been abstractly
separated. Unbinding a single form of physical page from the MM VA
range, brings flexibility to the drm gpu SVM framework, transfer the
way of management of MM and device physical pages to the driver layer.
framework's range embedded pages object and its range level wrappers
have no users left. Remove the following:
- Drop pages in drm_gpusvm_range.
- Drop drm_gpusvm_range_pages_valid(), drm_gpusvm_range_get_pages()
and drm_gpusvm_range_unmap_pages(); drivers should use the
drm_gpusvm_pages helpers (drm_gpusvm_pages_valid,
drm_gpusvm_get_pages, drm_gpusvm_unmap_pages) directly on a
pages object they own.
- Drop the notifier_seq seeding in drm_gpusvm_range_alloc();
drivers initialise notifier_seq on their own pages object.
Update the DOC: overview to match the new model: document struct
drm_gpusvm_pages and the driver owned 1:1 / N:1 layouts, and rewrite the
usage examples to operate on a driver embedded pages object by the
drm_gpusvm_pages helpers instead of the removed range level wrappers.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-5-honghuan@amd.com
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With drm_gpusvm_pages now self contained, make xe stop relying
on the drm_gpusvm_range pages and take responsibility for the page
lifecycle on the driver side.
Driver side (xe):
- Embed struct drm_gpusvm_pages in xe_svm_range and route all
xe accesses through it instead of range->base.pages.
- Initialise the embedded pages via drm_gpusvm_init_pages(), which
binds the owning &xe->drm up front, and take over the page
lifecycle: xe_svm_range_get_pages() calls drm_gpusvm_get_pages()
directly; the notifier event_end and xe_svm_range_free() paths
drive unmap/free on the embedded pages object.
- Convert the open-coded userptr pages init in xe_userptr_setup()
to the same drm_gpusvm_init_pages() helper.
- Switch xe_svm_range_pages_valid() to drm_gpusvm_pages_valid().
Framework side (drm_gpusvm):
- Add a small inline drm_gpusvm_init_pages() helper that records the
owning drm_device and initialises the per-pages state, giving
drivers a single hook to extend.
- Export drm_gpusvm_pages_valid() to let driver owned pages
can query mapping state without going through a range.
- Lifecycle change: drm_gpusvm_range_remove() no longer *triggers*
unmap/free of the embedded pages. The unmap/free logic itself stays
in the framework -- drm_gpusvm_free_pages() still performs the DMA
unmap (as an idempotent backstop) and frees the dma_addr array --
but the driver now owns *when* it runs, since the driver owns the
drm_gpusvm_pages object.
Side effect / contract: a driver that owns a drm_gpusvm_pages is now
responsible for its lifecycle: drm_gpusvm_init_pages() before first
use, and drm_gpusvm_free_pages() when the owner goes away. Xe does the
latter from its ops->range_free callback, which the framework invokes
once the range refcount drops to zero in drm_gpusvm_range_remove().
The timely DMA unmap for the IOMMU security model still happens in the
notifier invalidate path via drm_gpusvm_unmap_pages(); the unmap inside
drm_gpusvm_free_pages() is only a backstop for pages that were never
invalidated.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-4-honghuan@amd.com
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drm_gpusvm_pages is the layer that actually represents physical
pages/mappings it owns the dma_addr array, the dma_iova_state...
With the previous patch, so drm_gpusvm_pages is now strictly about
physical pages and their DMA view.
Since now the drm_gpusvm_pages instance is inherently bound to one
specific drm_device, make that ownership explicit by giving
drm_gpusvm_pages its own drm_device handle, and drive all DMA through
it instead of through the gpusvm:
- Add drm to struct drm_gpusvm_pages and route all DMA in
drm_gpusvm_get_pages() / __drm_gpusvm_unmap_pages() through
svm_pages->drm instead of gpusvm->drm.
- Bind svm_pages->drm where the pages object is initialised
(drm_gpusvm_range_alloc() and the xe userptr setup) and require
it to be set on entry to drm_gpusvm_get_pages(); the dma device
is immutable for the lifetime of the pages instance. A later
patch introduces drm_gpusvm_init_pages() to centralise this.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-3-honghuan@amd.com
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drm_gpusvm_pages_flags currently mixes two status:
- MM / virtual-address state: whether the range has been (partially)
unmapped by the Linux MM, these follow the lifetime of the VMA and
are a single per VA range fact.
- Device mapping state: has_devmem_pages and has_dma_mapping,
which describe the current page mapping status held by device
itself.
Keeping both on the pages object blurs the semantics of the
abstraction of pages and VA range. So move the MM state flags onto the
range, and keep drm_gpusvm_pages_flags strictly for mapping state.
- Introduce drm_gpusvm_range_flags { migrate_devmem, unmapped,
partial_unmap } on drm_gpusvm_range.
- Shrink drm_gpusvm_pages_flags to just has_devmem_pages and
has_dma_mapping.
Side effect: drivers now need to check the unmap flags in the driver
itself to avoid handling the unmapped pages.
Mirror that bit onto drm_gpusvm_pages so the framework can
still short circuit drm_gpusvm_get_pages() under the notifier lock, and
make drm_gpusvm_range_set_unmapped() propagate it to the backing pages.
This follows Matt's review fixup for the v0 series; see the Link below.
Like drm_gpusvm_pages_flags, drm_gpusvm_range_flags unions its bits with
a u16 __flags member. Build the new value in a local copy and publish it
with a single WRITE_ONCE() on __flags, and have the lockless readers use
READ_ONCE(), so concurrent bitfield access stays data-race free and KCSAN
quiet.
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://gitlab.freedesktop.org/mbrost/xe-kernel-driver-svn-perf-6-15-2025/-/commit/623f6a50c037d9e44f6c9fbe6859a0ba7ad50177
Signed-off-by: Honglei Huang <honghuan@amd.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630102127.392396-2-honghuan@amd.com
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