linux-stable.git/drivers/accel/amdxdna, branch master

accel/amdxdna: Block running when IOMMU is off

2026-05-21T17:23:00+00:00

The AIE2 device firmware requires IOMMU on.

Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5319
Reviewed-by: Mario Limonciello 
Signed-off-by: Lizhi Hou 
Link: https://patch.msgid.link/20260520223531.1403302-1-lizhi.hou@amd.com

accel/amdxdna: Remove mmap and export support for ubuf

2026-05-19T15:47:59+00:00

Ubuf pages should not be mmaped or exported. Remove the ubuf mmap callback
and return -EOPNOTSUPP when exporting ubuf objects.

ubuf vmap is also removed for there is not a real use case yet.

Fixes: bd72d4acda10 ("accel/amdxdna: Support user space allocated buffer")
Reviewed-by: Christian König 
Reviewed-by: Mario Limonciello (AMD) 
Signed-off-by: Lizhi Hou 
Link: https://patch.msgid.link/20260518155706.937461-1-lizhi.hou@amd.com

Merge tag 'drm-misc-next-2026-03-26' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2026-03-27T02:45:54+00:00

drm-misc-next for v7.1:

UAPI Changes:

amdxdna:
- support per-BO memory-usage queries

docs:
- Improve UAPI documentation

panthor:
- extend timestamp query with flags

Core Changes:

edid:
- provide enum drm_output_color_format; mass-convert drivers

gem-dma:
- use drm_dev_dma_dev() for DMA mappings
- set VM_DONTDUMP on mmap

mipi-dbi:
- drop simple-display; mass-convert drivers

prime:
- use drm_dev_dma_dev() for DMA mappings

ttm:
- improve handling of gfp_retry_mayfail

Driver Changes:

amdgpu:
- use atomic_create_state for private_obj

amdxdna:
- refactor GEM implementation
- fixes

bridge:
- provide clear-and-put helper for reliable cleanup
- analogix_dp: Use DP helpers for link training
- lontium-lt8713sx: Fix 64-bit division and Kconfig
- samsung-dsim: Use clear-and-put

imagination:
- improve power-off sequence
- support context-reset notification from firmware

komeda:
- support Arm China Linlon D6 plus DT bindings

mediatek:
- use drm_dev_dma_dev() for DMA mappings

panel:
- support Himax HX83121A plus DT bindings
- support JuTouch JT070TM041 plus DT bindings
- support Samsung S6E8FC0 plus DT bindings
- himax-hx83102c: support Samsung S6E8FC0 plus DT bindings; support backlight
- ili9806e: support Rocktech RK050HR345-CT106A plus DT bindings
- simple: support Tianma TM050RDH03 plus DT bindings

panthor:
- support various sources for timestamp queries
- fixes

omapdrm:
- use atomic_create_state for private_obj

rcar-du:
- fix suspend/resume wrt VSP interface
- fix leak of device_link
- clean up

sun4i:
- use drm_dev_dma_dev() for DMA mappings

tegra:
- use atomic_create_state for private_obj

xe:
- send 'none' recovery method for XE_WEDGED_MODE_UPON_ANY_HANG_NO_RESET

Signed-off-by: Dave Airlie 

From: Thomas Zimmermann 
Link: https://patch.msgid.link/20260326151812.GA76082@linux.fritz.box

BackMerge tag 'v7.0-rc4' into drm-next

2026-03-25T23:41:26+00:00

Linux 7.0-rc4

Needed for rust tree.

Signed-off-by: Dave Airlie

accel/amdxdna: Add per-process BO memory usage query support

2026-03-25T18:41:24+00:00

Add support for querying per-process buffer object (BO) memory
usage through the amdxdna GET_ARRAY UAPI.

Introduce a new query type, DRM_AMDXDNA_BO_USAGE, along with
struct amdxdna_drm_bo_usage to report BO memory usage statistics,
including heap, total, and internal usage.

Track BO memory usage on a per-client basis by maintaining counters
in GEM open/close and heap allocation/free paths. This ensures the
reported statistics reflect the current memory footprint of each
process.

Wire the new query into the GET_ARRAY implementation to expose
the usage information to userspace.

Link: https://github.com/amd/xdna-driver/commit/0546f2aaadbdacf1c3556410ecd71622044cd916
Signed-off-by: Max Zhen 
Reviewed-by: Lizhi Hou 
Reviewed-by: Mario Limonciello (AMD) 
Signed-off-by: Lizhi Hou 
Link: https://patch.msgid.link/20260324163159.2425461-1-lizhi.hou@amd.com

accel/amdxdna: Return ERR_PTR on dma_alloc_noncoherent failure

2026-03-23T20:29:22+00:00

dma_alloc_noncoherent() returns NULL on failure, but callers of
aie2_alloc_msg_buffer() check for IS_ERR(). Return ERR_PTR(-ENOMEM)
instead of NULL to match the amdxdna_iommu_alloc() path and the
caller's error checking convention.

Fixes: ece3e8980907 ("accel/amdxdna: Allow forcing IOVA-based DMA via module parameter")
Signed-off-by: Wendy Liang 
Reviewed-by: Karol Wachowski 
Reviewed-by: Mario Limonciello (AMD) 
Signed-off-by: Lizhi Hou 
Link: https://patch.msgid.link/20260323173719.2311474-1-lizhi.hou@amd.com

accel/amdxdna: fix missing newline in pr_err message

2026-03-23T16:36:51+00:00

Add missing newline to pr_err message in amdxdna_mailbox.c.

Fixes: b87f920b9344 ("accel/amdxdna: Support hardware mailbox")
Signed-off-by: haoyu.lu 
Reviewed-by: Lizhi.hou 
Signed-off-by: Lizhi.hou 
Signed-off-by: Lizhi Hou 
Link: https://patch.msgid.link/20260323034933.216-1-hechushiguitu666@gmail.com

accel/amdxdna: Refactor GEM BO handling and add helper APIs for address retrieval

2026-03-21T05:12:49+00:00

Refactor amdxdna GEM buffer object (BO) handling to simplify address
management and unify BO type semantics.

Introduce helper APIs to retrieve commonly used BO addresses:
- User virtual address (UVA)
- Kernel virtual address (KVA)
- Device address (IOVA/PA)

These helpers centralize address lookup logic and avoid duplicating
BO-specific handling across submission and execution paths. This also
improves readability and reduces the risk of inconsistent address
handling in future changes.

As part of the refactor:
- Rename SHMEM BO type to SHARE to better reflect its usage.
- Merge CMD BO handling into SHARE, removing special-case logic for
  command buffers.
- Consolidate BO type handling paths to reduce code duplication and
  simplify maintenance.

No functional change is intended. The refactor prepares the driver for
future enhancements by providing a cleaner abstraction for BO address
management.

Reviewed-by: Mario Limonciello (AMD) 
Signed-off-by: Max Zhen 
Signed-off-by: Lizhi Hou 
Link: https://patch.msgid.link/20260320210615.1973016-1-lizhi.hou@amd.com

accel/amdxdna: Support retrieving hardware context debug information

2026-03-17T21:08:57+00:00

The firmware implements the GET_APP_HEALTH command to collect debug
information for a specific hardware context.

When a command times out, the driver issues this command to collect the
relevant debug information. User space tools can also retrieve this
information through the hardware context query IOCTL.

Reviewed-by: Mario Limonciello 
Signed-off-by: Lizhi Hou 
Link: https://patch.msgid.link/20260317044906.1513133-1-lizhi.hou@amd.com

accel/amdxdna: Add debug prints for command submission

2026-03-16T19:53:22+00:00

Add debug prints to help diagnose issues with incoming command submissions.

Reviewed-by: Mario Limonciello 
Signed-off-by: Lizhi Hou 
Link: https://patch.msgid.link/20260316175642.1451749-1-lizhi.hou@amd.com