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NVIDIA: SAUCE: sound/hda: add runtime PM suspend/resume to ACPI controller - #496

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NVIDIA: SAUCE: sound/hda: add runtime PM suspend/resume to ACPI controller#496
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@dcemin-nv dcemin-nv commented Jul 22, 2026

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The hda-acpi platform driver never enables runtime PM, so
pm_runtime_force_suspend() in hda_acpi_suspend() skips the runtime
callbacks. On resume the controller is therefore never re-initialised:
azx_init_chip() is called only at probe time, so after S3 the codec
verbs time out and audio is dead until the driver is rebound.

Add explicit runtime_suspend/runtime_resume callbacks and invoke them
from the system-sleep paths, mirroring the pattern used by snd-hda-intel.
Board-tested on N1x (NVDA2014): resume latency drops from 81.5s to 3.6s
and audio is live immediately after wake.

nvmochs and others added 30 commits June 18, 2026 18:19
@nvmochs @jacobmartin0
NVIDIA: SAUCE: arm64: configs: Build CONFIG_NVGRACE_EGM as LKM
e6da477 
BugLink: https://bugs.launchpad.net/bugs/2119656

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 5bb23c1 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 7d2ea55 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 077c834 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit f5a03d0 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@ankita-nv @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Move the egm header file to include
05fb6ae 
BugLink: https://bugs.launchpad.net/bugs/2119656

nvgrace-egm exposes the API register_egm_node & unregister_egm_node
to manage EGM (Extended GPU Memory) present on the system.

To allow out-of-tree driver such as nvidia-vgpu-vfio make use of them,
move the declaration to a new nvgrace-egm.h in include.

Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit bed340f https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit a961663 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 020c46c noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
(cherry picked from commit 739457a noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Free region memory during unregistra…
afd2b1b 
…tion

BugLink: https://bugs.launchpad.net/bugs/2119656

Free the kmalloc'd region when the EGM is unregistered.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit fc592b9 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit f24760c https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 374b166 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 8f781d0 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Move region hash initialization
14f29cf 
BugLink: https://bugs.launchpad.net/bugs/2119656

Move region hash initiaization alongside the other region initialization
statements to avoid situations where the hash table was not properly
initialized.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 8021c1d https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit e1264a6 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 0f8a098 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 22f790a noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Handle and convey EGM registration e…
1222f90 
…rrors

BugLink: https://bugs.launchpad.net/bugs/2119656

Update error handling within EGM regiration routine to catch and
return errors to the caller.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit a57210c https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit a706ff8 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit edc0ac0 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit e7a177e noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-gpu: Handle EGM registration failure
e3d7a6b 
BugLink: https://bugs.launchpad.net/bugs/2119656

Detect and handle a failure from the EGM registration service.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit f18eee3 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 8371b68 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit be5ae8f noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 2dd5903 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Address sparse errors
155c2c4 
BugLink: https://bugs.launchpad.net/bugs/2119656

Fix minor syntax errors from sparse.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit bbb64e6 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit fe78194 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit b192960 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit c1d3f21 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-gpu: Address smatch errors
5ddf259 
BugLink: https://bugs.launchpad.net/bugs/2119656

Use the correct macro and types for overflow checking.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit afa8f63 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit d110330 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit a6c0508 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 8ec6da2 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Ensure ACPI value reads are successful
b281da4 
BugLink: https://bugs.launchpad.net/bugs/2119656

Ensure ACPI table reads are successful prior to using the value.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit b2947b0 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 9258355 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 2c5b472 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 3f72f24 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Avoid invalid retired pages base
f51e2fb 
BugLink: https://bugs.launchpad.net/bugs/2119656

Some environments may provide a "nvidia,egm-retired-pages-data-base” but
fail to populate it with a base address, leaving it NULL. Mapping this
invalid value results in a synchronous exception when the region is first
touched. Detect a NULL value, generate a warning to draw attention to the
firmware bug, and return without mapping.

INFO:    th500_ras_intr_handler: External Abort reason=1 syndrome=0x92000410 flags=0x1
[   82.104493] Internal error: synchronous external abort: 0000000096000410 [NVIDIA#1] SMP
[   82.114898] Modules linked in: nvgrace_gpu_vfio_pci(E) nvgrace_egm(E)
[   82.257218] CPU: 0 PID: 10 Comm: kworker/0:1 Tainted: G           OE      6.8.12+ NVIDIA#5
[   82.265135] Hardware name: NVIDIA GH200 P5042, BIOS 24103110 20241031
[   82.271720] Workqueue: events work_for_cpu_fn
[   82.276180] pstate: 03400009 (nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
[   82.283298] pc : register_egm_node+0x2cc/0x440 [nvgrace_egm]
[   82.289087] lr : register_egm_node+0x2c4/0x440 [nvgrace_egm]
[   82.294872] sp : ffff8000802ebc30
[   82.298254] x29: ffff8000802ebc60 x28: 00000000000000ff x27: 0000000000000000
[   82.305550] x26: ffff000087a320c8 x25: ffff0000a5700000 x24: ffff000087a32000
[   82.312846] x23: ffffa77cd758e368 x22: 0000000000000000 x21: ffffa77cd758c640
[   82.320141] x20: ffffa77cd758e170 x19: ffff800081e7d000 x18: ffff800080293038
[   82.327437] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[   82.334732] x14: 0000000000000000 x13: 65203a65646f6e5f x12: 0000000000000000
[   82.342027] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
[   82.349322] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000
[   82.356618] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[   82.363913] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff800081e7d000
[   82.371210] Call trace:
[   82.373705]  register_egm_node+0x2cc/0x440 [nvgrace_egm]
[   82.379135]  nvgrace_gpu_probe+0x2ac/0x528 [nvgrace_gpu_vfio_pci]
[   82.385366]  local_pci_probe+0x4c/0xe0
[   82.389198]  work_for_cpu_fn+0x28/0x58
[   82.393026]  process_one_work+0x168/0x3f0
[   82.397123]  worker_thread+0x360/0x480
[   82.400952]  kthread+0x11c/0x128
[   82.404248]  ret_from_fork+0x10/0x20
[   82.407906] Code: d2820001 940002b3 aa0003f3 b4fffac0 (f9400017)
[   82.414134] ---[ end trace 0000000000000000 ]---

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 7ba2930 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 349fb1c https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 6e9c94a noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit c5992d5 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Update EGM unregistration API
8f65e20 
BugLink: https://bugs.launchpad.net/bugs/2119656

In an effort to simplify the programming model, use a symmetrical model
for the the EGM regsiration APIs. This avoids the caller needing to keep
a cookie or even have knowlege of if EGM is supported. Update the EGM
unregisration API to use the PCI device as its parameter.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit d8903ec https://github.com/nvmochs/NV-Kernels/tree/vegm_01232025)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 5839fc5 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit f6fb40e noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 0e607bc noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@ankita-nv @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: track GPUs associated with the EGM r…
b82121b 
…egions

BugLink: https://bugs.launchpad.net/bugs/2119656

GB200 systems could have multiple GPUs associated with
an EGM region. For proper EGM functionality the host
topology in terms of GPU affinity has to be replicated
in the VM. Hence the EGM region structure must track the
GPU devices belonging to the same socket.

On the device probe, the device pci_dev struct is added to a
linked list of the appropriate EGM region.

Similarly on device remove, the pci_dev struct for the GPU
is removed from the EGM region.

Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Ref: sj24: /home/nvidia/ankita/kernel_patches/0001_vfio_nvgrace-egm_track_GPUs_associated_with_the_EGM_regions.patch
(koba: Enhance error handling, Remove egm_node from unregister_egm_node
and move destroy_egm_chardev a little forward)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 0222c35 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 5ba1a1f noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit c167095 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@ankita-nv @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: list gpus through sysfs
bf7b7e6 
BugLink: https://bugs.launchpad.net/bugs/2119656

To replicate the host EGM topology in the VM in terms of
the GPU affinity, the userspace need to be aware of which
GPUs belong to the same socket as the EGM region.

Expose the list of GPUs associated with an EGM region
through sysfs. The list can be queried from the location
/sys/devices/virtual/egm/egmX/gpu_devices.

Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Ref: sj24: /home/nvidia/ankita/kernel_patches/0002_vfio_nvgrace-egm_list_gpus_through_sysfs.patch
(koba: Enchance error handling for sysfs_create_group)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit fec2356 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 5dde2f0 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit a5284ca noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@ankita-nv @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: expose the egm size through sysfs
36e294f 
BugLink: https://bugs.launchpad.net/bugs/2119656

To allocate the EGM, the userspace need to know it's size. Currently,
there is no easy way for the userspace to determine that.

Make nvgrace-egm expose the size through sysfs that can be queried
by the userspace from /sys/devices/virtual/egm/egmX/egm_size.

Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Ref: sj24: /home/nvidia/ankita/kernel_patches/0003_vfio_nvgrace-egm_expose_the_egm_size_through_sysfs.patch
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit dcdcef2 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 9940157 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit e025c29 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@ankita-nv @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: register EGM PFNMAP range with memor…
438251f 
…y_failure

BugLink: https://bugs.launchpad.net/bugs/2138892

EGM carveout memory is mapped directly into userspace (QEMU) and is not
added to the kernel. It is not managed by the kernel page allocator and
has no struct pages. The module can thus utilize the Linux memory manager's
memory_failure mechanism for regions with no struct pages. The Linux MM
code exposes register/unregister APIs allowing modules to register such
memory regions for memory_failure handling.

Register the EGM PFN range with the MM memory_failure infrastructure on
open, and unregister it on the last close. Provide a PFN-to-VMA offset
callback that validates the PFN is within the EGM region and the VMA,
then converts it to a file offset and records the poisoned offset in the
existing hashtable for reporting to userspace.

Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Signed-off-by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 3fde504 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvmochs @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Address smatch errors
c8f6ef7 
BugLink: https://bugs.launchpad.net/bugs/2119656

Return the intended errno upon a copyout fault, remove unnecessary
checks following container_of pointer derivation, and use the correct
macro and types for overflow checking.

Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Acked-by: Koba Ko <kobak@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 429910b https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.8-next)
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit bda63f3 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 942bf3b noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 63dd059 noble:linux-nvidia-6.17)
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
@kobak2026 @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: Add null pointer checks after memory…
5c1b135 
… allocations

BugLink: https://bugs.launchpad.net/bugs/2119656

Add missing null pointer checks after vzalloc() calls in the NVIDIA
Grace GPU driver's EGM (External GPU Memory) handling code. This
prevents potential null pointer dereferences in the memory failure
handling and bad page fetching functions, providing proper error
handling for allocation failures.

Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L. Soto <csoto@nvidia.com>
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
(cherry picked from commit 63127e2 https://github.com/NVIDIA/NV-Kernels/tree/24.04_linux-nvidia-adv-6.11-next)
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit e5f0c8d noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(backported from commit 862ed5a noble:linux-nvidia-6.17)
[mochs: Addressed collission for a null pointer check that is no longer needed]
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
@ankita-nv @jacobmartin0
NVIDIA: SAUCE: vfio/nvgrace-egm: split zapping EGM into 1GB chunks
ee813ff 
BugLink: https://bugs.launchpad.net/bugs/2142160

When initializing EGM (Extended GPU Memory) regions, the current
implementation performs a single memset operation over the entire
memory region. For very large regions, this can result in long-running
uninterruptible operations that may cause system responsiveness issues
or trigger watchdog timeouts.

Split the memset operation into 1GB chunks.

Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 3554744 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nirmoy @jacobmartin0
NVIDIA: SAUCE: arm64: configs: enable NVGRACE_EGM as module
f7b2b52 
BugLink: https://bugs.launchpad.net/bugs/2119656

Add CONFIG_NVGRACE_EGM with policy 'm' for arm64 architecture.

Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matt Ochs <mochs@nvidia.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit ddf68d0 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
(cherry picked from commit 9ef26d9 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: [Config] nvidia: Use performance CPU frequency governor on amd64
e520e82 
BugLink: https://bugs.launchpad.net/bugs/2028576

The bug indicates NVIDIA wanted to enable the performance governor by
default on all arches for the NVIDIA kernels. However, this was
mistakenly only configured for arm64 systems. Fix this by also using the
performance CPU frequency governor as the default on amd64 systems.

Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
(cherry picked from commit a530411)

(cherry picked from commit a530411 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 93d3ca3 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@abhsahu @jacobmartin0
NVIDIA: SAUCE: Fix FFA notification count initialization
c96cb83 
BugLink: https://bugs.launchpad.net/bugs/2123861

In nvidia_ffa_create_notifications(), it invokes
nvidia_ffa_fill_notification_map(), which fills the virtual notification
IDs array supported by the current FFA device. This function updates
notification_count after traversing the notification array in the _DSD
method. For FFA devices without an entry in the _DSD method,
notification_count is assumed to be zero initialized.

However, nvidia_ffa_ec_service_probe() uses kmalloc() instead of kzalloc(),
so notification_count may contain random values. This causes FFA device
probe failures.

This patch fixes this by using kzalloc() to zero initialize the
nvidia_ec_ffa_device structure.

Fixes: ae87187 ("NVIDIA: SAUCE: Add support for notifications from secure EC services")
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 518a89b noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit bf0587b noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
Us Chien @jacobmartin0
NVIDIA: SAUCE: MEDIATEK: usb: host: xhci-hub: fix MT89xx SoCs return …
7f30c8c 
…PORTLI value

BugLink: https://bugs.launchpad.net/bugs/2125126

For DIGITS GB10, USB SuperSpeed Plus Gen2x1 device enumeration speed is
being shown as Gen2x2 in the dmesg log.

  usb 4-1: new SuperSpeed Plus Gen 2x2 USB device number 2 using xhci-hcd

The USB3 link lanes count is recorded in the read-only
TLC and RLC fields of the PORTLI register. In MT89xx SoCs (used by GB10),
the lane count can be wrongly set to 2 instead of 1 for USB Gen2x1
devices due to HW Bug. As per Table 7-13 in USB xHCI revision 1.2
specification, the value 0x5 is for SuperSpeedPlus Gen2x1.

This patch adds a SW WAR to read the port speed in PORTSC register.
If port speed value is 0x5, then the lane count can be updated to 1.

Signed-off-by: Us Chien <us.chien@mediatek.com>
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Kai-Heng Feng <kaihengf@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit b5b3a58 noble:linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit c654995 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@aritger @jacobmartin0
NVIDIA: SAUCE: iommu/io-pgtable-arm: backport contiguous bit support
0725241 
BugLink: https://bugs.launchpad.net/bugs/2112600

iommu/io-pgtable-arm: Support contiguous bit in translation tables

The contiguous bit in translation table entries can be used as a hint to
SMMU that a group of adjacent translation table entries have consistent
attributes and point to a contiguous and properly aligned output address
range. This enables SMMU to predict the properties of the remaining
translation table entries in the same group without accessing them. It
also allows an SMMU implementation to make more efficient use of its TLB
by using a single TLB entry to cover all translation table entries in
the same group.

In the case of 4KB granule size, there are 16 translation table entries
in one group.

This change sets the contiguous bit for such groups of entries that are
completely covered by a single call to map_pages. As it stands, the code
wouldn't set the contiguous bit if a group of adjacent descriptors is
completed by separate calls to map_pages.

Signed-off-by: Daniel Mentz <danielmentz@google.com>
Link: https://lore.kernel.org/linux-iommu/20250430231924.1481493-1-danielmentz@google.com/
[aritger: For the backport: updated the __arm_lpae_init_pte() callsite in
arm_lpae_split_blk_unmap() (arm_lpae_split_blk_unmap() is no longer
present at top of tree where the original commit was written).]
Signed-off-by: Andy Ritger <aritger@nvidia.com>
Acked-by: Jamie Nguyen <jamien@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>
(backported from commit 990fa55 linux-nvidia-6.11)
[kobak: arm_lpae_split_blk_unmap is removed since https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=33729a5fc0caf7a97d20507acbeee6b012e7e519
iommu/io-pgtable-arm: Remove split on unmap behavior so modify as per functions]
Signed-off-by: Koba Ko <kobak@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Jamie Nguyen <jamien@nvidia.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Signed-off-by: Ian May <ianm@nvidia.com>

(cherry picked from commit c601e60 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@leon-yen @jacobmartin0
NVIDIA: SAUCE: wifi: mt76: mt7925: introduce CSA support in non-MLO mode
466c092 
BugLink: https://bugs.launchpad.net/bugs/2129209

Add CSA (Channel Switch Announcement) related implementation
in collaboration with mac80211 to deal with dynamic channel
switching.

Signed-off-by: Leon Yen <leon.yen@mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>

Conflicts:
- drivers/net/wireless/mediatek/mt76/mt7925/main.c
  Code is different in mt7925_add_interface()

- drivers/net/wireless/mediatek/mt76/mt792x_core.c
  Code organization is different

Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
[Backported from https://patchwork.kernel.org/project/linux-wireless/patch/20250926053447.4036650-1-mingyen.hsieh@mediatek.com/]
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Ian May <ianm@nvidia.com>

(cherry picked from commit 060dc92 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nirmoy @jacobmartin0
NVIDIA: SAUCE: iommu/arm-smmu-v3: Set DGX Spark iGPU default domain t…
8fb5682 
…ype to DMA

BugLink: https://bugs.launchpad.net/bugs/2129776

Force DGX Spark systems to use DMA translation as current drivers
require this.

Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Ian May <ianm@nvidia.com>

(cherry picked from commit 54575cf noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nirmoy @jacobmartin0
UBUNTU: [Config] nvidia: Update annotations to set CONFIG_IOMMU_DEFAU…
c069047 
…LT_PASSTHROUGH

BugLink: https://bugs.launchpad.net/bugs/2129776

Default to CONFIG_IOMMU_DEFAULT_PASSTHROUGH on NVIDIA CPU on kernel
above 6.11 as suggested by perf team. x86 always defaults to
CONFIG_IOMMU_DEFAULT_DMA_LAZY so remove redundant amd64 setting.

Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Ian May <ianm@nvidia.com>

(backported from commit e74a7d8 noble:linux-nvidia-6.17)
[mochs: Addressed minor context collission]
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
@RealtekNIC @jacobmartin0
NVIDIA: SAUCE: r8127: fix a kernel panic when dump all registers
5369065 
BugLink: https://bugs.launchpad.net/bugs/2130445

The call to cat registers2 will acquire rtnl_lock and dump all
mapped mmio. Due to acquire rtnl_lock too long, it will cause a
kernel panic "not syncing: SBSA Generic Watchdog timeout". Fix this
issue by acquiring rtnl_lock every 16 byte when dump all mapped
mmio.

Signed-off-by: ChunHao Lin <hau@realtek.com>
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Ian May <ian.may@canonical.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 9737b84 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@RealtekNIC @jacobmartin0
NVIDIA: SAUCE: r8127: add support for RTL8127 cable diagnostic test
2415881 
BugLink: https://bugs.launchpad.net/bugs/2130445

Use following command to do the test.

cat /proc/net/r8127/<devname>/test/cdt

Signed-off-by: ChunHao Lin <hau@realtek.com>
Signed-off-by: Abhishek Sahu <abhsahu@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Ian May <ian.may@canonical.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit aaf12ca noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nirmoy @jacobmartin0
NVIDIA: SAUCE: iommu/arm-smmu-v3: Add two more DGX Spark iGPU IDs for…
924a7a9 
… existing iommu quirk

BugLink: https://bugs.launchpad.net/bugs/2132033

Add two more device IDs for the existing Spark iommu quirk.

Link: https://bugs.launchpad.net/ubuntu/+source/linux-nvidia-6.14/+bug/2132033

Signed-off-by: Nirmoy Das <nirmoyd@nvidia.com>
Acked-by: Jamie Nguyen <jamien@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Acked-by: Noah Wager <noah.wager@canonical.com>
Signed-off--by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit ba93154 noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@RealtekNIC @jacobmartin0
NVIDIA: SAUCE: r8127: Remove registers2 proc entry
857693f 
BugLink: https://bugs.launchpad.net/bugs/2134991

Remove registers2 proc entry as it is causing system crash on running
opensource LTP test suite.

Change-Id: I47846bca0401d4403fba026d4a348eef3d454f80
Signed-off-by: ChunHao Lin <hau@realtek.com>
Acked-by: Jamie Nguyen <jamien@nvidia.com>
Acked-by: Carol L Soto <csoto@nvidia.com>
Acked-by: Matthew R. Ochs <mochs@nvidia.com>
Acked-by: Abdur Rahman <abdur.rahman@canonical.com>
Acked-by: Jacob Martin <jacob.martin@canonical.com>
Signed-off-by: Brad Figg <bfigg@nvidia.com>

(cherry picked from commit 4ff6f9f noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
Abdur Rahman and others added 24 commits July 1, 2026 14:18
Abdur Rahman @jacobmartin0
UBUNTU: Start new release
53ddb12 
Ignore: yes
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
Abdur Rahman @jacobmartin0
UBUNTU: link-to-tracker: update tracking bug
8052245 
BugLink: https://bugs.launchpad.net/bugs/2150111
Properties: no-test-build
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
Abdur Rahman @jacobmartin0
UBUNTU: Ubuntu-nvidia-7.0-7.0.0-1005.5~24.04.6
6efec6b 
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
Abdur Rahman @jacobmartin0
UBUNTU: Start new release
b1157f4 
Ignore: yes
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
Abdur Rahman @jacobmartin0
UBUNTU: link-to-tracker: update tracking bug
e31edf8 
BugLink: https://bugs.launchpad.net/bugs/2150140
Properties: no-test-build
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
Abdur Rahman @jacobmartin0
UBUNTU: Ubuntu-nvidia-7.0-7.0.0-1006.6~24.04.1
be14fe3 
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
@jacobmartin0
UBUNTU: [Packaging] update variants
e3c897c 
BugLink: https://bugs.launchpad.net/bugs/1786013
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: Start new release
720909b 
Ignore: yes
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: [Packaging] debian.nvidia-7.0/dkms-versions -- update from ke…
cba1864 
…rnel-versions (adhoc/d2026.05.20)

BugLink: https://bugs.launchpad.net/bugs/1786013
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: Ubuntu-nvidia-7.0-7.0.0-1010.10~24.04.1
f087adc 
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: Start new release
90ec393 
Ignore: yes
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: link-to-tracker: update tracking bug
cec329d 
BugLink: https://bugs.launchpad.net/bugs/2153498
Properties: no-test-build
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: [Config] nvidia-7.0: update configs
34007cf 
Ignore: yes
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: Ubuntu-nvidia-7.0-7.0.0-1013.13~24.04.1
d649aa0 
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
Abdur Rahman @jacobmartin0
UBUNTU: [Packaging] Add do_tools_noble_hwe to include perf and bpftoo…
e943301 
…l in SRCPKGNAME-tools-$(abi_release)

BugLink: https://bugs.launchpad.net/bugs/2127953

The tools perf and bpftool are not built on Noble HWE 6.14 kernels
because the kernel packaging rules introduced in Plucky on which Noble
HWE 6.14 kernels are based expect perf and bpftool to be split out into
their own packages linux-perf and bpftool, which are only built by the
primary kernel.

Resolve this by adding a flag `do_tools_noble_hwe` to return to building
perf and bpftool into the SRCPKGNAME-tools-$(abi_release) package, which
are exec'd by the wrapper scripts provided by the linux-tools-common
package produced by the Noble primary kernel.

Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
Abdur Rahman @jacobmartin0
UBUNTU: [Packaging] enable do_tools_noble_hwe
bda0c53 
BugLink: https://bugs.launchpad.net/bugs/2127953

Enable do_tools_noble_hwe to build bpftool and perf tools into the
linux-nvidia-6.17-tools-$(abi_release) package so they can be used by
the linux-tools-common wrapper scripts in Noble.

Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>
@smb49 @jacobmartin0
UBUNTU: [Packaging] nvidia-7.0: Undo /lib/ -> /usr/lib changes
d0999ca 
Resolute changed /lib/modules/* and /lib/modprobe.d/ to be under /usr/.
Keep noble compatibility by reverting that.

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
(cherry picked from commit e5f983de2f9ae429c27000994c02b24aa4068e02)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: Start new release
0708a15 
Ignore: yes
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: link-to-tracker: update tracking bug
c90fa86 
BugLink: https://bugs.launchpad.net/bugs/2158926
Properties: no-test-build
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: [Packaging] debian.nvidia-7.0/dkms-versions -- update from ke…
db80e7a 
…rnel-versions (main/d2026.06.30)

BugLink: https://bugs.launchpad.net/bugs/1786013
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@nvidia-bfigg @jacobmartin0
NVIDIA: [Packaging] Add nvidia-fs build dependencies
4075692 
BugLink: https://bugs.launchpad.net/bugs/2059814

Signed-off-by: Brad Figg <bfigg@nvidia.com>
Acked-by: Brad Figg <bfigg@nvidia.com>
Acked-by: Ian May <ian.may@canonical.com>
Signed-off-by: Ian May <ian.may@canonical.com>
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
(cherry picked from commit a64b597
linux-nvidia-6.14)
Signed-off-by: Abdur Rahman <abdur.rahman@canonical.com>

(cherry picked from commit 67713ae noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: [Packaging] Depend on 580 NVIDIA graphics driver components e…
ff2dada 
…xplicitly

The virtual nvidia-kernel-source and nvidia-dkms-kernel dependencies
would sometimes pull the 470 driver, which is incompatible with the
nvidia-fs build.

Stick to the latest LTS. This could be made to use the virtual packages
again once the 470 driver transitionals are released.

Ignore: yes
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>

(cherry picked from commit 73a27bb noble:linux-nvidia-6.17)
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@jacobmartin0
UBUNTU: Ubuntu-nvidia-7.0-7.0.0-1015.15~24.04.1
dfa0ae4 
Signed-off-by: Jacob Martin <jacob.martin@canonical.com>
@dcemin-nv
NVIDIA: SAUCE: sound/hda: add runtime PM suspend/resume to ACPI contr…
8a3b592 
…oller

The hda-acpi platform driver never enables runtime PM, so
pm_runtime_force_suspend() in hda_acpi_suspend() skips the runtime
callbacks.  On resume the controller is therefore never re-initialised:
azx_init_chip() is called only at probe time, so after S3 the codec
verbs time out and audio is dead until the driver is rebound.

Add explicit runtime_suspend/runtime_resume callbacks and invoke them
from the system-sleep paths, mirroring the pattern used by snd-hda-intel.
Board-tested on N1x (NVDA2014): resume latency drops from 81.5s to 3.6s
and audio is live immediately after wake.

Signed-off-by: David Cemin <dcemin@nvidia.com>
@nirmoy nirmoy added the help wanted Extra attention is needed label Jul 22, 2026
@jamieNguyenNVIDIA

jamieNguyenNVIDIA commented Jul 23, 2026

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Hi @dcemin-nv,

Is this a patch that you intend to send to the mailing list? If so, I'd suggest doing that first and then referencing the mailing list URL in this commit:

(backported from <lore URL>

Secondly, I suggest targeting this PR at the following branches instead of 24.04_linux-nvidia-7.0-next:

  1. 26.04_linux-nvidia-bos
  2. 26.04_linux-nvidia

Canonical helps ensure that the 24.04 kernel source is kept in sync with the 26.04 versions, so no need to target PRs at the 24.04+7.0 branches.

@nirmoy

nirmoy commented Jul 23, 2026

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BaseOS Kernel Review

Summary

No issues found across the reviewed commits.

Findings: no problems found

Latest watcher review: open review

Generated test plan: open test plan

Kernel deb build: successful (download debs, 4 files)

Head: 8a3b5920a6c3

This comment is maintained by nv-pr-bot. It is updated when the GitHub watcher publishes a newer review.

@nvidia-bfigg
nvidia-bfigg force-pushed the 24.04_linux-nvidia-7.0-next branch from dfa0ae4 to a625012 Compare July 27, 2026 15:25
nvidia-bfigg pushed a commit that referenced this pull request Jul 27, 2026
@borkmann @kuba-moo
selftests/bpf: Add test for redirect from qdisc qevent block
f789afe 
Add a regression test for the NULL current->bpf_net_context deref hit
when a BPF classifier attached to a qdisc qevent block asks for a
redirect. The classifier runs from tcf_qevent_handle() on the qdisc
enqueue path, outside any bpf_net_context.

  # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t qevent
  [...]
  + /etc/rcS.d/S50-startup
  ./test_progs -t qevent
  #496/1   tc_qevent/redirect_verdict:OK
  #496/2   tc_qevent/redirect_helper:OK
  #496     tc_qevent:OK
  Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20260706185609.330006-4-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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