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

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ltrager wants to merge 82 commits into

NVIDIA:26.04_linux-nvidia-bosfrom

ltrager:7.0-mpam-update

Commits on Aug 20, 2026

Revert "NVIDIA: SAUCE: arm_mpam: Apply T241-MPAM-6 to 63-bit counters"
ltrager
committed
09263f4
Revert "NVIDIA: SAUCE: Fix mbm_L3_assign and mon_local_bytes"
ltrager
committed
b7c92ce
Revert "NVIDIA: VR: SAUCE: resctrl: add MBA max_lim sysfs and visibility from init"
ltrager
committed
ce37081
Revert "NVIDIA: VR: SAUCE: resctrl/mpam: probe MPAMF_MBW_IDR MAX_LIM and hardlim_rw"
ltrager
committed
0525852
Revert "NVIDIA: SAUCE: resctrl/mpam: reset RIS by applying explicit default config"
ltrager
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eae554a
Revert "NVIDIA: SAUCE: arm_mpam: Include all associated MSC components during domain setup"
ltrager
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f9e6a10
Revert "NVIDIA: VR: SAUCE: arm_mpam: Avoid MSC teardown for the SW programming errors"
ltrager
committed
095e99b
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Determine if any exposed counter can overflow"
ltrager
committed
2affafd
Revert "NVIDIA: VR: SAUCE: fs/resctrl: Add support for assigning iommu_groups to resctrl groups"
ltrager
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34a5067
Revert "NVIDIA: VR: SAUCE: iommu: Add helpers to get and set the QoS state"
ltrager
committed
c46332d
Revert "NVIDIA: VR: SAUCE: iommu/arm-smmu-v3: Add mpam helpers to query and set state"
ltrager
committed
8fceac6
Revert "NVIDIA: VR: SAUCE: iommu/arm-smmu-v3: Register SMMU capabilities with MPAM"
ltrager
committed
64fa409
Revert "NVIDIA: VR: SAUCE: fs/resctrl: Add this_is_not_abi mount option"
ltrager
committed
6d100b5
Revert "NVIDIA: VR: SAUCE: arm_mpam: Allow MSC to be forced to have an unknown location"
ltrager
committed
ab1751f
Revert "NVIDIA: VR: SAUCE: arm_mpam: Allow the maximum partid to be overridden from the command line"
ltrager
committed
7ee46e4
Revert "NVIDIA: VR: SAUCE: arm_mpam: Split the locking around the mon_sel registers"
ltrager
committed
b920998
Revert "NVIDIA: VR: SAUCE: arm_mpam: Expose the number of NRDY retries in debugfs"
ltrager
committed
51c6838
Revert "NVIDIA: VR: SAUCE: arm_mpam: Add debugfs entries to show the MSC/RIS the driver discovered"
ltrager
committed
6779cce
Revert "NVIDIA: VR: SAUCE: fs/resctrl: Avoid a race with dom_data_exit() and rmid_ptrs[]"
ltrager
committed
74f3c29
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Add resctrl_arch_cntr_read() & resctrl_arch_reset_cntr()"
ltrager
committed
35f4231
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Add resctrl_arch_rmid_read() and resctrl_arch_reset_rmid()"
ltrager
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14f92c3
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Add resctrl_arch_config_cntr() for ABMC use"
ltrager
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e37378a
Revert "NVIDIA: VR: SAUCE: arm_mpam: resctrl: Add kunit test for ABMC/CDP interactions"
ltrager
committed
76ae65b
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Pre-allocate assignable monitors"
ltrager
committed
dd82919
Revert "NVIDIA: SAUCE: arm_mpam: resctrl: Pre-allocate free running monitors"
ltrager
committed
bc73fff
Revert "NVIDIA: SAUCE: untested: arm_mpam: resctrl: pick classes for use as mbm counters"
ltrager
committed
577c602
KVM: arm64: Force guest EL1 to use user-space's partid configuration

James Morse
authored and
ltrager
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16f3fd4
arm_mpam: Update architecture version check for MPAM MSC

henryZe
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d39607f
NVIDIA: SAUCE: arm_mpam: let low level MSC accessors return an error

Andre-ARM
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ltrager
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67708c5
NVIDIA: SAUCE: resctrl/mpam: probe MPAMF_MBW_IDR MAX_LIM and hardlim_rw

fyu1
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7e1ef6b
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for hw_probe functions

Andre-ARM
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9e0fd0a
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for MBWU counters

Andre-ARM
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7443bf8
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for msmon helpers

Andre-ARM
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e5b9448
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for __ris_msmon_read()

Andre-ARM
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09786fe
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for state saving function

Andre-ARM
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495047d
NVIDIA: SAUCE: resctrl/mpam: reset RIS by applying explicit default config

shankerd04
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6a927ec
arm_mpam: Fix MPAMCFG_MBW_PBM register setting

fyu1
authored and
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0e441ef
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for mpam_reprogram_ris_partid()

Andre-ARM
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fce72db
NVIDIA: SAUCE: arm_mpam: propagate MSC access errors for interrupt control

Andre-ARM
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0931e0d
NVIDIA: SAUCE: arm_mpam: prepare mon_sel locking for MPAM-Fb

Andre-ARM
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922cf3f
NVIDIA: SAUCE: arm_mpam: add MPAM-Fb MSC firmware access support

Andre-ARM
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78cd82f
NVIDIA: SAUCE: arm_mpam: Avoid MSC teardown for the SW programming errors

shankerd04
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c55d66e
NVIDIA: SAUCE: arm_mpam: change MPAM-Fb error IRQ to use a threaded IRQ handler

Andre-ARM
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cfdd5b7
NVIDIA: SAUCE: arm_mpam: detect and enable MPAM-Fb PCC support

Andre-ARM
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66e8041
fs/resctrl: Tidy up the error path in resctrl_mkdir_event_configs()

benhor01
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dcc333a
x86,fs/resctrl: Create 'event_filter' files read only if they're not configurable

benhor01
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f5472a0
fs/resctrl: Disallow the software controller when MBM counters are assignable

benhor01
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558c84e
fs/resctrl: Add monitor property 'mbm_cntr_assign_fixed'

benhor01
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24a628f
fs/resctrl: Continue counter allocation after failure

benhor01
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e75f35a
fs/resctrl: Document that automatic counter assignment is best effort

benhor01
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55a8f06
fs/resctrl: Document tasks file behaviour for task id 0 and idle tasks

benhor01
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8ef04b9
NVIDIA: SAUCE: arm_mpam: resctrl: Pick classes for use as MBM counters

James Morse
authored and
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committed
7a7587d
NVIDIA: SAUCE: arm_mpam: resctrl: Pre-allocate assignable monitors

benhor01
authored and
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committed
28c18a8
NVIDIA: SAUCE: arm_mpam: resctrl: Add resctrl_arch_config_cntr() for ABMC use

James Morse
authored and
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committed
d6fe836
NVIDIA: SAUCE: arm_mpam: resctrl: Add resctrl_arch_cntr_read() & resctrl_arch_reset_cntr()

James Morse
authored and
ltrager
committed
de7e9c8
NVIDIA: SAUCE: arm64: mpam: Add memory bandwidth usage (MBWU) documentation

benhor01
authored and
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committed
c53d226
NVIDIA: SAUCE: arm_mpam: resctrl: Add kunit test for ABMC/CDP interactions

James Morse
authored and
ltrager
committed
a143e2d
NVIDIA: SAUCE: fs/resctrl: Avoid a race with dom_data_exit() and rmid_ptrs[]

James Morse
authored and
ltrager
committed
56ba388
NVIDIA: SAUCE: arm_mpam: Allow the maximum partid to be overridden from the command line

James Morse
authored and
ltrager
committed
3148381
NVIDIA: SAUCE: fs/resctrl: Add this_is_not_abi mount option

James Morse
authored and
ltrager
committed
3199f1b
NVIDIA: SAUCE: arm_mpam: Allow MSC to be forced to have an unknown location

James Morse
authored and
ltrager
committed
e1f9ee5
NVIDIA: SAUCE: iommu/arm-smmu-v3: Register SMMU capabilities with MPAM

James Morse
authored and
ltrager
committed
940fb21
NVIDIA: SAUCE: iommu/arm-smmu-v3: Add mpam helpers to query and set state

James Morse
authored and
ltrager
committed
a3fb2f1
NVIDIA: SAUCE: iommu: Add helpers to get and set the QoS state

James Morse
authored and
ltrager
committed
8c136a4
NVIDIA: SAUCE: fs/resctrl: Add support for assigning iommu_groups to resctrl groups

James Morse
authored and
ltrager
committed
97c1bf3
NVIDIA: SAUCE: arm_mpam: Add debugfs entries to show the MSC/RIS the driver discovered

James Morse
authored and
ltrager
committed
a6f922c
NVIDIA: SAUCE: arm_mpam: Expose the number of NRDY retries in debugfs

James Morse
authored and
ltrager
committed
ad925b6
NVIDIA: SAUCE: arm_mpam: resctrl: Determine if any exposed counter can overflow

James Morse
authored and
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committed
ff3f342
NVIDIA: SAUCE: resctrl: add MBA max_lim sysfs and visibility from init

fyu1
authored and
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committed
d26b8f6
NVIDIA: SAUCE: arm_mpam: Include all MSC components during domain setup

fyu1
authored and
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committed
1e4bb0b
NVIDIA: SAUCE: Fix mbm_L3_assign and mon_local_bytes

fyu1
authored and
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committed
96a12bd
NVIDIA: SAUCE: arm_mpam: Fix monitor capability and MBM assign for MB events

fyu1
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219aef7
NVIDIA: SAUCE: fs/resctrl: Fix incorrect PID parsing after IOMMU group token

henryZe
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f7fb8b9
NVIDIA: SAUCE: fs/resctrl: Remove unused 'of' parameter from rdtgroup_move_iommu()

henryZe
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805f2bb
NVIDIA: SAUCE: fs/resctrl: Migrate IOMMU groups when removing resource groups

henryZe
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committed
e8f43c4
NVIDIA: SAUCE: fs/resctrl: Fix redefinition of iommu helpers with CONFIG_RESCTRL_IOMMU=n

ltrager
and
claude
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a1100cb
NVIDIA: SAUCE: arm_mpam: Initialize mbwu_state values to 0
ltrager
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b6544b7
NVIDIA: SAUCE: fs/resctrl: Fix iommu_group reference leaks when iterating groups
ltrager
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7f09299
NVIDIA: SAUCE: arm_mpam: Skip NRDY values when saving MBWU state
ltrager
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13ddf9f
NVIDIA: SAUCE: arm_mpam: Apply T241-MPAM-6 to 63-bit counters

shankerd04
authored and
ltrager
committed
1e863fe
NVIDIA: SAUCE: arm_mpam: Scale saved MBWU state for T241-MPAM-6
ltrager
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4ca08ed
NVIDIA: SAUCE: arm_mpam: Fix PCC channel lifetime during MSC removal
ltrager
committed
01cb4e9