drm/amdkfd: expose pasid of secondary contexts by debugfs

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Current kfd debugfs interfaces only expose pasid
of the primary process, this commit exposes
pasid of secondary contexts by debugfs

Just like entries under sysfs,
the secondary contexts are named as
context_<id> under its primary kfd process.

The layout:
/sys/kernel/debug/kfd/proc# tree
.
└── 5802
    ├── context_0
    │   ├── pasid_1025
    │   └── pasid_63266
    ├── context_1
    │   ├── pasid_1025
    │   └── pasid_63266
    ├── pasid_1025
    └── pasid_63266

Another fix is, kfd_debugfs_add_process may fail,
this commit change it to return a meaningful
value other than void

Signed-off-by: Zhu Lingshan <lingshan.zhu@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Zhu Lingshan 2026-07-01 11:03:09 +08:00 • committed by Alex Deucher

parent c936b8126b

commit 325de6bf33

4 changed files with 104 additions and 23 deletions

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5

drivers/gpu/drm/amd/amdkfd/kfd_chardev.c

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119

drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c

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4

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

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5

drivers/gpu/drm/amd/amdkfd/kfd_process.c

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