[26.04_linux-nvidia-bos] MPAM update - #543

Closed

ltrager wants to merge 91 commits into

NVIDIA:26.04_linux-nvidia-bosfrom

ltrager:7.0-mpam-update

Commits on Sep 2, 2026

Revert "NVIDIA: SAUCE: PCI/MSI: Enable memory decoding before restoring MSI-X messages"
ltrager
committed
b7b0256
Revert "NVIDIA: SAUCE: arm_mpam: Apply T241-MPAM-6 to 63-bit counters"
ltrager
committed
1b61958
Revert "NVIDIA: SAUCE: Fix mbm_L3_assign and mon_local_bytes"
ltrager
committed
f40b9a8
Revert "NVIDIA: VR: SAUCE: resctrl: add MBA max_lim sysfs and visibility from init"
ltrager
committed
bd1954e
Revert "NVIDIA: VR: SAUCE: resctrl/mpam: probe MPAMF_MBW_IDR MAX_LIM and hardlim_rw"
ltrager
committed
96e7092
Revert "NVIDIA: SAUCE: resctrl/mpam: reset RIS by applying explicit default config"
ltrager
committed
5bd6f5b
Revert "NVIDIA: SAUCE: arm_mpam: Include all associated MSC components during domain setup"
ltrager
committed
61f08b9
Revert "NVIDIA: VR: SAUCE: arm_mpam: Avoid MSC teardown for the SW programming errors"
ltrager
committed
bc011e5
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Determine if any exposed counter can overflow"
ltrager
committed
f9761a5
Revert "NVIDIA: VR: SAUCE: fs/resctrl: Add support for assigning iommu_groups to resctrl groups"
ltrager
committed
2604f45
Revert "NVIDIA: VR: SAUCE: iommu: Add helpers to get and set the QoS state"
ltrager
committed
28a2c02
Revert "NVIDIA: VR: SAUCE: iommu/arm-smmu-v3: Add mpam helpers to query and set state"
ltrager
committed
9bc7ea2
Revert "NVIDIA: VR: SAUCE: iommu/arm-smmu-v3: Register SMMU capabilities with MPAM"
ltrager
committed
bfcd3f8
Revert "NVIDIA: VR: SAUCE: fs/resctrl: Add this_is_not_abi mount option"
ltrager
committed
d7d0bff
Revert "NVIDIA: VR: SAUCE: arm_mpam: Allow MSC to be forced to have an unknown location"
ltrager
committed
fd499ed
Revert "NVIDIA: VR: SAUCE: arm_mpam: Allow the maximum partid to be overridden from the command line"
ltrager
committed
804e76b
Revert "NVIDIA: VR: SAUCE: arm_mpam: Split the locking around the mon_sel registers"
ltrager
committed
5687093
Revert "NVIDIA: VR: SAUCE: arm_mpam: Expose the number of NRDY retries in debugfs"
ltrager
committed
93b5824
Revert "NVIDIA: VR: SAUCE: arm_mpam: Add debugfs entries to show the MSC/RIS the driver discovered"
ltrager
committed
662bb49
Revert "NVIDIA: VR: SAUCE: fs/resctrl: Avoid a race with dom_data_exit() and rmid_ptrs[]"
ltrager
committed
e872eb5
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Add resctrl_arch_cntr_read() & resctrl_arch_reset_cntr()"
ltrager
committed
01eec3c
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Add resctrl_arch_rmid_read() and resctrl_arch_reset_rmid()"
ltrager
committed
b6d1315
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Add resctrl_arch_config_cntr() for ABMC use"
ltrager
committed
8bfa6ef
Revert "NVIDIA: VR: SAUCE: arm_mpam: resctrl: Add kunit test for ABMC/CDP interactions"
ltrager
committed
a096b2a
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Pre-allocate assignable monitors"
ltrager
committed
33c8444
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Pre-allocate free running monitors"
ltrager
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d86ca40
Revert "NVIDIA: SAUCE: untested: arm_mpam: resctrl: pick classes for use as mbm counters"
ltrager
committed
a6f40d2

Commits on Sep 4, 2026

PCI: Introduce PCI_SLOT_PLACEHOLDER constant for slot_nr placeholder value

Farhan Ali
authored and
ltrager
committed
873912d
PCI: Allow per function PCI slots to fix slot reset on s390

Farhan Ali
authored and
ltrager
committed
f2d7fc8
PCI: Avoid saving config space state if inaccessible

Farhan Ali
authored and
ltrager
committed
c7d80f7
PCI: Fail FLR when config space is inaccessible

Farhan Ali
authored and
ltrager
committed
9a746be
PCI/MSI: Enable memory decoding before restoring MSI-X messages

Farhan Ali
authored and
ltrager
committed
5b3608f
KVM: arm64: Force guest EL1 to use user-space's partid configuration

James Morse
authored and
ltrager
committed
d461c80
arm_mpam: Update architecture version check for MPAM MSC

henryZe
authored and
ltrager
committed
8aa034e
NVIDIA: SAUCE: arm_mpam: let low level MSC accessors return an error

Andre-ARM
authored and
ltrager
committed
327caad
NVIDIA: SAUCE: resctrl/mpam: probe MPAMF_MBW_IDR MAX_LIM and hardlim_rw

fyu1
authored and
ltrager
committed
297f385
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for hw_probe functions

Andre-ARM
authored and
ltrager
committed
56c93a9
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for MBWU counters

Andre-ARM
authored and
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committed
907a57a
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for msmon helpers

Andre-ARM
authored and
ltrager
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0713150
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for __ris_msmon_read()

Andre-ARM
authored and
ltrager
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177f691
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for state saving function

Andre-ARM
authored and
ltrager
committed
08e1cb3
NVIDIA: SAUCE: resctrl/mpam: reset RIS by applying explicit default config

shankerd04
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ltrager
committed
96c5c51
arm_mpam: Fix MPAMCFG_MBW_PBM register setting

fyu1
authored and
ltrager
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685d533
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for mpam_reprogram_ris_partid()

Andre-ARM
authored and
ltrager
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77d0ad3
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for interrupt control

Andre-ARM
authored and
ltrager
committed
ed56cd7
NVIDIA: SAUCE: arm_mpam: prepare mon_sel locking for MPAM-Fb

Andre-ARM
authored and
ltrager
committed
bd39639
NVIDIA: SAUCE: arm_mpam: add MPAM-Fb MSC firmware access support

Andre-ARM
authored and
ltrager
committed
0b48c7c
NVIDIA: SAUCE: arm_mpam: Avoid MSC teardown for the SW programming errors

shankerd04
authored and
ltrager
committed
600430a
NVIDIA: SAUCE: arm_mpam: change MPAM-Fb error IRQ to use a threaded IRQ handler

Andre-ARM
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ltrager
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00d1d8a
NVIDIA: SAUCE: arm_mpam: detect and enable MPAM-Fb PCC support

Andre-ARM
authored and
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54eeb89
fs/resctrl: Tidy up the error path in resctrl_mkdir_event_configs()

benhor01
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9aaf440
x86,fs/resctrl: Create 'event_filter' files read only if they're not configurable

benhor01
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bfdc2da
fs/resctrl: Disallow the software controller when MBM counters are assignable

benhor01
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89e5cca
fs/resctrl: Add monitor property 'mbm_cntr_assign_fixed'

benhor01
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a007316
fs/resctrl: Continue counter allocation after failure

benhor01
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749ed1c
fs/resctrl: Document that automatic counter assignment is best effort

benhor01
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e997f96
fs/resctrl: Document tasks file behaviour for task id 0 and idle tasks

benhor01
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2485711
arm_mpam: resctrl: Pick classes for use as MBM counters

James Morse
authored and
ltrager
committed
82d9158
arm_mpam: resctrl: Pre-allocate assignable monitors

benhor01
authored and
ltrager
committed
2d6022c
arm_mpam: resctrl: Add resctrl_arch_config_cntr() for ABMC use

James Morse
authored and
ltrager
committed
7e94f2d
arm_mpam: resctrl: Add resctrl_arch_cntr_read() & resctrl_arch_reset_cntr()

James Morse
authored and
ltrager
committed
8be70bc
arm64: mpam: Add memory bandwidth usage (MBWU) documentation

benhor01
authored and
ltrager
committed
3c28eeb
NVIDIA: SAUCE: arm_mpam: resctrl: Add kunit test for ABMC/CDP interactions

James Morse
authored and
ltrager
committed
9924602
NVIDIA: SAUCE: fs/resctrl: Avoid a race with dom_data_exit() and rmid_ptrs[]

James Morse
authored and
ltrager
committed
b533453
NVIDIA: SAUCE: arm_mpam: Allow the maximum partid to be overridden from the command line

James Morse
authored and
ltrager
committed
c3c2f68
NVIDIA: SAUCE: fs/resctrl: Add this_is_not_abi mount option

James Morse
authored and
ltrager
committed
7852bb1
NVIDIA: SAUCE: arm_mpam: Allow MSC to be forced to have an unknown location

James Morse
authored and
ltrager
committed
41cfaf7
NVIDIA: SAUCE: iommu/arm-smmu-v3: Register SMMU capabilities with MPAM

James Morse
authored and
ltrager
committed
ef8e624
NVIDIA: SAUCE: iommu/arm-smmu-v3: Add mpam helpers to query and set state

James Morse
authored and
ltrager
committed
fa399d1
NVIDIA: SAUCE: iommu: Add helpers to get and set the QoS state

James Morse
authored and
ltrager
committed
a033786
NVIDIA: SAUCE: fs/resctrl: Add support for assigning iommu_groups to resctrl groups

James Morse
authored and
ltrager
committed
3ac007a
NVIDIA: SAUCE: arm_mpam: Add debugfs entries to show the MSC/RIS the driver discovered

James Morse
authored and
ltrager
committed
c7160da
NVIDIA: SAUCE: arm_mpam: Expose the number of NRDY retries in debugfs

James Morse
authored and
ltrager
committed
7fb251c
NVIDIA: SAUCE: arm_mpam: resctrl: Determine if any exposed counter can overflow

James Morse
authored and
ltrager
committed
615e83f
NVIDIA: SAUCE: resctrl: add MBA max_lim sysfs and visibility from init

fyu1
authored and
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committed
8b74e3e
NVIDIA: SAUCE: arm_mpam: Include all MSC components during domain setup

fyu1
authored and
ltrager
committed
4f948a1
NVIDIA: SAUCE: Fix mbm_L3_assign and mon_local_bytes

fyu1
authored and
ltrager
committed
9394770
NVIDIA: SAUCE: arm_mpam: Fix monitor capability and MBM assign for MB events

fyu1
authored and
ltrager
committed
2afbc1b
NVIDIA: SAUCE: fs/resctrl: Fix incorrect PID parsing after IOMMU group token

henryZe
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c038f48
NVIDIA: SAUCE: fs/resctrl: Remove unused 'of' parameter from rdtgroup_move_iommu()

henryZe
authored and
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bc1df06
NVIDIA: SAUCE: fs/resctrl: Migrate IOMMU groups when removing resource groups

henryZe
authored and
ltrager
committed
3bdc5d9
NVIDIA: SAUCE: fs/resctrl: Fix redefinition of iommu helpers with CONFIG_RESCTRL_IOMMU=n

ltrager
and
claude
committed
70690b5
NVIDIA: SAUCE: arm_mpam: Ensure MBWU counters are reset on restore

benhor01
authored and
ltrager
committed
2d685c1
NVIDIA: SAUCE: fs/resctrl: Fix iommu_group reference leaks when iterating groups
ltrager
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107ab4f
NVIDIA: SAUCE: arm_mpam: Use __ris_msmon_read() for saving MBWU state

benhor01
authored and
ltrager
committed
290e5b6
arm_mpam: Apply T241-MPAM-6 to 63-bit counters

shankerd04
authored and
ltrager
committed
baeb83c
NVIDIA: SAUCE: arm_mpam: Initialize all of struct mon_read in mpam_restore_mbwu_state()

benhor01
authored and
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committed
bf9a8df
NVIDIA: SAUCE: arm_mpam: resctrl: Correct check that existing class is L3

benhor01
authored and
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committed
7c9e4b8
NVIDIA: SAUCE: arm_mpam: Fix PCC channel lifetime during MSC removal
ltrager
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7700016
NVIDIA: SAUCE: arm_mpam: Quiesce error IRQ before MSC removal
ltrager
committed
778141d
NVIDIA: SAUCE: fs/resctrl: Continue IOMMU group migration after errors
ltrager
committed
c6f7a1c