Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.12, take #1

- Fix pKVM error path on init, making sure we do not chang

Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.12, take #1

- Fix pKVM error path on init, making sure we do not change critical
system registers as we're about to fail

- Make sure that the host's vector length is at capped by a value
common to all CPUs

- Fix kvm_has_feat*() handling of "negative" features, as the current
code is pretty broken

- Promote Joey to the status of official reviewer, while James steps
down -- hopefully only temporarly

show more ...

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.12

A bunch of fixes here that came in during the merge window and t

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.12

A bunch of fixes here that came in during the merge window and the first
week of release, plus some new quirks and device IDs. There's nothing
major here, it's a bit bigger than it might've been due to there being
no fixes sent during the merge window due to your vacation.

show more ...

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.

Signed-off-by: Maarten L

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts and no adjacent changes.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Merge tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
"Regular fixes for the week to end the merge window, i915 and xe have a
few each, amd

Merge tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
"Regular fixes for the week to end the merge window, i915 and xe have a
few each, amdgpu makes up most of it with a bunch of SR-IOV related
fixes amongst others.

i915:
- Fix BMG support to UHBR13.5
- Two PSR fixes
- Fix colorimetry detection for DP

xe:
- Fix macro for checking minimum GuC version
- Fix CCS offset calculation for some BMG SKUs
- Fix locking on memory usage reporting via fdinfo and BO destroy
- Fix GPU page fault handler on a closed VM
- Fix overflow in oa batch buffer

amdgpu:
- MES 12 fix
- KFD fence sync fix
- SR-IOV fixes
- VCN 4.0.6 fix
- SDMA 7.x fix
- Bump driver version to note cleared VRAM support
- SWSMU fix
- CU occupancy logic fix
- SDMA queue fix"

* tag 'drm-next-2024-09-28' of https://gitlab.freedesktop.org/drm/kernel: (79 commits)
drm/amd/pm: update workload mask after the setting
drm/amdgpu: bump driver version for cleared VRAM
drm/amdgpu: fix vbios fetching for SR-IOV
drm/amdgpu: fix PTE copy corruption for sdma 7
drm/amdkfd: Add SDMA queue quantum support for GFX12
drm/amdgpu/vcn: enable AV1 on both instances
drm/amdkfd: Fix CU occupancy for GFX 9.4.3
drm/amdkfd: Update logic for CU occupancy calculations
drm/amdgpu: skip coredump after job timeout in SRIOV
drm/amdgpu: sync to KFD fences before clearing PTEs
drm/amdgpu/mes12: set enable_level_process_quantum_check
drm/i915/dp: Fix colorimetry detection
drm/amdgpu/mes12: reduce timeout
drm/amdgpu/mes11: reduce timeout
drm/amdgpu: use GEM references instead of TTMs v2
drm/amd/display: Allow backlight to go below `AMDGPU_DM_DEFAULT_MIN_BACKLIGHT`
drm/amd/display: Fix kdoc entry for 'tps' in 'dc_process_dmub_dpia_set_tps_notification'
drm/amdgpu: update golden regs for gfx12
drm/amdgpu: clean up vbios fetching code
drm/amd/display: handle nulled pipe context in DCE110's set_drr()
...

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Merge tag 'amd-drm-fixes-6.12-2024-09-27' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-fixes-6.12-2024-09-27:

amdgpu:
- MES 12 fix
- KFD fence sync fix
- SR-IOV fixes
- VCN 4

Merge tag 'amd-drm-fixes-6.12-2024-09-27' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-fixes-6.12-2024-09-27:

amdgpu:
- MES 12 fix
- KFD fence sync fix
- SR-IOV fixes
- VCN 4.0.6 fix
- SDMA 7.x fix
- Bump driver version to note cleared VRAM support
- SWSMU fix

amdgpu:
- CU occupancy logic fix
- SDMA queue fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240927202819.2978109-1-alexander.deucher@amd.com

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drm/amdgpu: nuke the VM PD/PT shadow handling

This was only used as workaround for recovering the page tables after
VRAM was lost and is no longer necessary after the function
amdgpu_vm_bo_reset_sta

drm/amdgpu: nuke the VM PD/PT shadow handling

This was only used as workaround for recovering the page tables after
VRAM was lost and is no longer necessary after the function
amdgpu_vm_bo_reset_state_machine() started to do the same.

Compute never used shadows either, so the only proplematic case left is
SVM and that is most likely not recoverable in any way when VRAM is
lost.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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drm/amdgpu: Fix missing check pcie_p2p module param

The module param pcie_p2p should be checked for kfd p2p feature, so add it.

Fixes: 75f0efbc4b3b ("drm/amdgpu: Take IOMMU remapping into account f

drm/amdgpu: Fix missing check pcie_p2p module param

The module param pcie_p2p should be checked for kfd p2p feature, so add it.

Fixes: 75f0efbc4b3b ("drm/amdgpu: Take IOMMU remapping into account for p2p checks")
Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Merge branch 'next' into for-linus

Prepare input updates for 6.12 merge window.

Merge branch 'ib/6.11-rc6-matrix-keypad-spitz' into next

Bring in changes removing support for platform data from matrix-keypad
driver.

Merge tag 'v6.10' into next

Sync up with mainline to bring in device_for_each_child_node_scoped()
and other newer APIs.

Merge tag 'v6.11-rc1' into clk-meson-next

Linux 6.11-rc1

Merge tag 'v6.11-rc3' into trace/ring-buffer/core

The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be a

Merge tag 'v6.11-rc3' into trace/ring-buffer/core

The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be able to be mapped at the address specified by the "reserve_mem" command
line parameter.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

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Merge tag 'v6.11-rc1' into for-6.12

Linux 6.11-rc1

Merge branch 'bpf/for-next' into sched_ext-base

Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
"This adds a couple of patches outside the drm core, all should be
acked appropriat

Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
"This adds a couple of patches outside the drm core, all should be
acked appropriately, the string and pstore ones are the main ones that
come to mind.

Otherwise it's the usual drivers, xe is getting enabled by default on
some new hardware, we've changed the device number handling to allow
more devices, and we added some optional rust code to create QR codes
in the panic handler, an idea first suggested I think 10 years ago :-)

string:
- add mem_is_zero()

core:
- support more device numbers
- use XArray for minor ids
- add backlight constants
- Split dma fence array creation into alloc and arm

fbdev:
- remove usage of old fbdev hooks

kms:
- Add might_fault() to drm_modeset_lock priming
- Add dynamic per-crtc vblank configuration support

dma-buf:
- docs cleanup

buddy:
- Add start address support for trim function

printk:
- pass description to kmsg_dump

scheduler:
- Remove full_recover from drm_sched_start

ttm:
- Make LRU walk restartable after dropping locks
- Allow direct reclaim to allocate local memory

panic:
- add display QR code (in rust)

displayport:
- mst: GUID improvements

bridge:
- Silence error message on -EPROBE_DEFER
- analogix: Clean aup
- bridge-connector: Fix double free
- lt6505: Disable interrupt when powered off
- tc358767: Make default DP port preemphasis configurable
- lt9611uxc: require DRM_BRIDGE_ATTACH_NO_CONNECTOR
- anx7625: simplify OF array handling
- dw-hdmi: simplify clock handling
- lontium-lt8912b: fix mode validation
- nwl-dsi: fix mode vsync/hsync polarity

xe:
- Enable LunarLake and Battlemage support
- Introducing Xe2 ccs modifiers for integrated and discrete graphics
- rename xe perf to xe observation
- use wb caching on DGFX for system memory
- add fence timeouts
- Lunar Lake graphics/media/display workarounds
- Battlemage workarounds
- Battlemage GSC support
- GSC and HuC fw updates for LL/BM
- use dma_fence_chain_free
- refactor hw engine lookup and mmio access
- enable priority mem read for Xe2
- Add first GuC BMG fw
- fix dma-resv lock
- Fix DGFX display suspend/resume
- Use xe_managed for kernel BOs
- Use reserved copy engine for user binds on faulting devices
- Allow mixing dma-fence jobs and long-running faulting jobs
- fix media TLB invalidation
- fix rpm in TTM swapout path
- track resources and VF state by PF

i915:
- Type-C programming fix for MTL+
- FBC cleanup
- Calc vblank delay more accurately
- On DP MST, Enable LT fallback for UHBR<->non-UHBR rates
- Fix DP LTTPR detection
- limit relocations to INT_MAX
- fix long hangs in buddy allocator on DG2/A380

amdgpu:
- Per-queue reset support
- SDMA devcoredump support
- DCN 4.0.1 updates
- GFX12/VCN4/JPEG4 updates
- Convert vbios embedded EDID to drm_edid
- GFX9.3/9.4 devcoredump support
- process isolation framework for GFX 9.4.3/4
- take IOMMU mappings into account for P2P DMA

amdkfd:
- CRIU fixes
- HMM fix
- Enable process isolation support for GFX 9.4.3/4
- Allow users to target recommended SDMA engines
- KFD support for targetting queues on recommended SDMA engines

radeon:
- remove .load and drm_dev_alloc
- Fix vbios embedded EDID size handling
- Convert vbios embedded EDID to drm_edid
- Use GEM references instead of TTM
- r100 cp init cleanup
- Fix potential overflows in evergreen CS offset tracking

msm:
- DPU:
- implement DP/PHY mapping on SC8180X
- Enable writeback on SM8150, SC8180X, SM6125, SM6350
- DP:
- Enable widebus on all relevant chipsets
- MSM8998 HDMI support
- GPU:
- A642L speedbin support
- A615/A306/A621 support
- A7xx devcoredump support

ast:
- astdp: Support AST2600 with VGA
- Clean up HPD
- Fix timeout loop for DP link training
- reorganize output code by type (VGA, DP, etc)
- convert to struct drm_edid
- fix BMC handling for all outputs

exynos:
- drop stale MAINTAINERS pattern
- constify struct

loongson:
- use GEM refcount over TTM

mgag200:
- Improve BMC handling
- Support VBLANK intterupts
- transparently support BMC outputs

nouveau:
- Refactor and clean up internals
- Use GEM refcount over TTM's

gm12u320:
- convert to struct drm_edid

gma500:
- update i2c terms

lcdif:
- pixel clock fix

host1x:
- fix syncpoint IRQ during resume
- use iommu_paging_domain_alloc()

imx:
- ipuv3: convert to struct drm_edid

omapdrm:
- improve error handling
- use common helper for_each_endpoint_of_node()

panel:
- add support for BOE TV101WUM-LL2 plus DT bindings
- novatek-nt35950: improve error handling
- nv3051d: improve error handling
- panel-edp:
- add support for BOE NE140WUM-N6G
- revert support for SDC ATNA45AF01
- visionox-vtdr6130:
- improve error handling
- use devm_regulator_bulk_get_const()
- boe-th101mb31ig002:
- Support for starry-er88577 MIPI-DSI panel plus DT
- Fix porch parameter
- edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1, BOE
NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
CMN N116BCP-EA2, CSW MNB601LS1-4
- himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
- ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
- jd9365da:
- Support Melfas lmfbx101117480 MIPI-DSI panel plus DT
- Refactor for code sharing
- panel-edp: fix name for HKC MB116AN01
- jd9365da: fix "exit sleep" commands
- jdi-fhd-r63452: simplify error handling with DSI multi-style
helpers
- mantix-mlaf057we51: simplify error handling with DSI multi-style
helpers
- simple:
- support Innolux G070ACE-LH3 plus DT bindings
- support On Tat Industrial Company KD50G21-40NT-A1 plus DT
bindings
- st7701:
- decouple DSI and DRM code
- add SPI support
- support Anbernic RG28XX plus DT bindings

mediatek:
- support alpha blending
- remove cl in struct cmdq_pkt
- ovl adaptor fix
- add power domain binding for mediatek DPI controller

renesas:
- rz-du: add support for RZ/G2UL plus DT bindings

rockchip:
- Improve DP sink-capability reporting
- dw_hdmi: Support 4k@60Hz
- vop:
- Support RGB display on Rockchip RK3066
- Support 4096px width

sti:
- convert to struct drm_edid

stm:
- Avoid UAF wih managed plane and CRTC helpers
- Fix module owner
- Fix error handling in probe
- Depend on COMMON_CLK
- ltdc:
- Fix transparency after disabling plane
- Remove unused interrupt

tegra:
- gr3d: improve PM domain handling
- convert to struct drm_edid
- Call drm_atomic_helper_shutdown()

vc4:
- fix PM during detect
- replace DRM_ERROR() with drm_error()
- v3d: simplify clock retrieval

v3d:
- Clean up perfmon

virtio:
- add DRM capset"

* tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel: (1326 commits)
drm/xe: Fix missing conversion to xe_display_pm_runtime_resume
drm/xe/xe2hpg: Add Wa_15016589081
drm/xe: Don't keep stale pointer to bo->ggtt_node
drm/xe: fix missing 'xe_vm_put'
drm/xe: fix build warning with CONFIG_PM=n
drm/xe: Suppress missing outer rpm protection warning
drm/xe: prevent potential UAF in pf_provision_vf_ggtt()
drm/amd/display: Add all planes on CRTC to state for overlay cursor
drm/i915/bios: fix printk format width
drm/i915/display: Fix BMG CCS modifiers
drm/amdgpu: get rid of bogus includes of fdtable.h
drm/amdkfd: CRIU fixes
drm/amdgpu: fix a race in kfd_mem_export_dmabuf()
drm: new helper: drm_gem_prime_handle_to_dmabuf()
drm/amdgpu/atomfirmware: Silence UBSAN warning
drm/amdgpu: Fix kdoc entry in 'amdgpu_vm_cpu_prepare'
drm/amd/amdgpu: apply command submission parser for JPEG v1
drm/amd/amdgpu: apply command submission parser for JPEG v2+
drm/amd/pm: fix the pp_dpm_pcie issue on smu v14.0.2/3
drm/amd/pm: update the features set on smu v14.0.2/3
...

show more ...

Merge tag 'amd-drm-next-6.12-2024-09-06' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.12-2024-09-06:

amdgpu:
- IPS updates
- Post divider fix
- DML2 updates
- Misc sta

Merge tag 'amd-drm-next-6.12-2024-09-06' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.12-2024-09-06:

amdgpu:
- IPS updates
- Post divider fix
- DML2 updates
- Misc static checker fixes
- DCN 3.5 fixes
- Replay fixes
- DMCUB updates
- SWSMU fixes
- DP MST fixes
- Add debug flag for per queue resets
- devcoredump updates
- SR-IOV fixes
- MES fixes
- Always allocate cleared VRAM for GEM
- Pipe reset for GC 9.4.3
- ODM policy fixes
- Per queue reset support for GC 10
- Per queue reset support for GC 11
- Per queue reset support for GC 12
- Display flickering fixes
- MPO fixes
- Display sharpening updates

amdkfd:
- SVM fix for IH for APUs

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240906211008.3072097-1-alexander.deucher@amd.com

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drm/amd/amdgpu: move drain_workqueue before shutdown is set

[background] when unloading amdgpu driver right after running a
workload, drain_workqueue is causing "Fence fallback timer
expired on ring

drm/amd/amdgpu: move drain_workqueue before shutdown is set

[background] when unloading amdgpu driver right after running a
workload, drain_workqueue is causing "Fence fallback timer
expired on ring sdma0.0". Under sriov, this issue will cause sriov
full access timeout and a reset happening.

move drain_workqueue before shutdown is set to allow ih process and
before enter full access under sriov to avoid full access time cost.

Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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drm/amdgpu: skip printing vram_lost if needed

The vm lost status can only be obtained after a GPU reset occurs, but
sometimes a dev core dump can be happened before GPU reset. So a new
argument is a

drm/amdgpu: skip printing vram_lost if needed

The vm lost status can only be obtained after a GPU reset occurs, but
sometimes a dev core dump can be happened before GPU reset. So a new
argument is added to tell the dev core dump implementation whether to
skip printing the vram_lost status in the dump.
And this patch is also trying to decouple the core dump function from
the GPU reset function, by replacing the argument amdgpu_reset_context
with amdgpu_job to specify the context for core dump.

V2: Inform user if VRAM lost check is skipped so users don't assume
VRAM wasn't lost (Alex)

Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Merge drm/drm-next into drm-intel-next

Need to take some Xe bo definition in here before
we can add the BMG display 64k aligned size restrictions.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.co

Merge drm/drm-next into drm-intel-next

Need to take some Xe bo definition in here before
we can add the BMG display 64k aligned size restrictions.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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Merge tag 'amd-drm-next-6.12-2024-08-26' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.12-2024-08-26:

amdgpu:
- SDMA devcoredump support
- DCN 4.0.1 updates
- DC SUBVP

Merge tag 'amd-drm-next-6.12-2024-08-26' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-6.12-2024-08-26:

amdgpu:
- SDMA devcoredump support
- DCN 4.0.1 updates
- DC SUBVP fixes
- Refactor OPP in DC
- Refactor MMHUBBUB in DC
- DC DML 2.1 updates
- DC FAMS2 updates
- RAS updates
- GFX12 updates
- VCN 4.0.3 updates
- JPEG 4.0.3 updates
- Enable wave kill (soft recovery) for compute queues
- Clean up CP error interrupt handling
- Enable CP bad opcode interrupts
- VCN 4.x fixes
- VCN 5.x fixes
- GPU reset fixes
- Fix vbios embedded EDID size handling
- SMU 14.x updates
- Misc code cleanups and spelling fixes
- VCN devcoredump support
- ISP MFD i2c support
- DC vblank fixes
- GFX 12 fixes
- PSR fixes
- Convert vbios embedded EDID to drm_edid
- DCN 3.5 updates
- DMCUB updates
- Cursor fixes
- Overdrive support for SMU 14.x
- GFX CP padding optimizations
- DCC fixes
- DSC fixes
- Preliminary per queue reset infrastructure
- Initial per queue reset support for GFX 9
- Initial per queue reset support for GFX 7, 8
- DCN 3.2 fixes
- DP MST fixes
- SR-IOV fixes
- GFX 9.4.3/4 devcoredump support
- Add process isolation framework
- Enable process isolation support for GFX 9.4.3/4
- Take IOMMU remapping into account for P2P DMA checks

amdkfd:
- CRIU fixes
- Improved input validation for user queues
- HMM fix
- Enable process isolation support for GFX 9.4.3/4
- Initial per queue reset support for GFX 9
- Allow users to target recommended SDMA engines

radeon:
- remove .load and drm_dev_alloc
- Fix vbios embedded EDID size handling
- Convert vbios embedded EDID to drm_edid
- Use GEM references instead of TTM
- r100 cp init cleanup
- Fix potential overflows in evergreen CS offset tracking

UAPI:
- KFD support for targetting queues on recommended SDMA engines
Proposed userspace:
https://github.com/ROCm/ROCR-Runtime/commit/2f588a24065f41c208c3701945e20be746d8faf7
https://github.com/ROCm/ROCR-Runtime/commit/eb30a5bbc7719c6ffcf2d2dd2878bc53a47b3f30

drm/buddy:
- Add start address support for trim function

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240826201528.55307-1-alexander.deucher@amd.com

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drm/amdgpu: Take IOMMU remapping into account for p2p checks

when trying to enable p2p the amdgpu_device_is_peer_accessible()
checks the condition where address_mask overlaps the aper_base
and hence

drm/amdgpu: Take IOMMU remapping into account for p2p checks

when trying to enable p2p the amdgpu_device_is_peer_accessible()
checks the condition where address_mask overlaps the aper_base
and hence returns 0, due to which the p2p disables for this platform

IOMMU should remap the BAR addresses so the device can access
them. Hence check if peer_adev is remapping DMA

v5: (Felix, Alex)
- fixing comment as per Alex feedback
- refactor code as per Felix

v4: (Alex)
- fix the comment and description

v3:
- remove iommu_remap variable

v2: (Alex)
- Fix as per review comments
- add new function amdgpu_device_check_iommu_remap to check if iommu
remap

Signed-off-by: Rahul Jain <Rahul.Jain@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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drm/amdgpu: Implement Enforce Isolation Handler for KGD/KFD serialization

This commit introduces the Enforce Isolation Handler designed to enforce
shader isolation on AMD GPUs, which helps to preven

drm/amdgpu: Implement Enforce Isolation Handler for KGD/KFD serialization

This commit introduces the Enforce Isolation Handler designed to enforce
shader isolation on AMD GPUs, which helps to prevent data leakage
between different processes.

The handler counts the number of emitted fences for each GFX and compute
ring. If there are any fences, it schedules the `enforce_isolation_work`
to be run after a delay of `GFX_SLICE_PERIOD`. If there are no fences,
it signals the Kernel Fusion Driver (KFD) to resume the runqueue.

The function is synchronized using the `enforce_isolation_mutex`.

This commit also introduces a reference count mechanism
(kfd_sch_req_count) to keep track of the number of requests to enable
the KFD scheduler. When a request to enable the KFD scheduler is made,
the reference count is decremented. When the reference count reaches
zero, a delayed work is scheduled to enforce isolation after a delay of
GFX_SLICE_PERIOD.

When a request to disable the KFD scheduler is made, the function first
checks if the reference count is zero. If it is, it cancels the delayed
work for enforcing isolation and checks if the KFD scheduler is active.
If the KFD scheduler is active, it sends a request to stop the KFD
scheduler and sets the KFD scheduler state to inactive. Then, it
increments the reference count.

The function is synchronized using the kfd_sch_mutex to ensure that the
KFD scheduler state and reference count are updated atomically.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>

show more ...

drm/amdgpu: Add enforce_isolation sysfs attribute

This commit adds a new sysfs attribute 'enforce_isolation' to control
the 'enforce_isolation' setting per GPU. The attribute can be read and
written

drm/amdgpu: Add enforce_isolation sysfs attribute

This commit adds a new sysfs attribute 'enforce_isolation' to control
the 'enforce_isolation' setting per GPU. The attribute can be read and
written, and accepts values 0 (disabled) and 1 (enabled).

When 'enforce_isolation' is enabled, reserved VMIDs are allocated for
each ring. When it's disabled, the reserved VMIDs are freed.

The set function locks a mutex before changing the 'enforce_isolation'
flag and the VMIDs, and unlocks it afterwards. This ensures that these
operations are atomic and prevents race conditions and other concurrency
issues.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

show more ...

drm/amdgpu: Make enforce_isolation setting per GPU

This commit makes enforce_isolation setting to be per GPU and per
partition by adding the enforce_isolation array to the adev structure.
The adev v

drm/amdgpu: Make enforce_isolation setting per GPU

This commit makes enforce_isolation setting to be per GPU and per
partition by adding the enforce_isolation array to the adev structure.
The adev variable is set based on the global enforce_isolation module
parameter during device initialization.

In amdgpu_ids.c, the adev->enforce_isolation value for the current GPU
is used to determine whether to enforce isolation between graphics and
compute processes on that GPU.

In amdgpu_ids.c, the adev->enforce_isolation value for the current GPU
and partition is used to determine whether to enforce isolation between
graphics and compute processes on that GPU and partition.

This allows the enforce_isolation setting to be controlled individually
for each GPU and each partition, which is useful in a system with
multiple GPUs and partitions where different isolation settings might be
desired for different GPUs and partitions.

v2: fix loop in amdgpu_vmid_mgr_init() (Alex)

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>

show more ...