amdkfd: identify a secondary kfd process by its id

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This commit introduces a new id field for
struct kfd process, which helps identify
a kfd process among multiple contexts that
all belong to a single user space program.

The sysfs entry of a secondary kfd process
is placed under the sysfs entry folder of
its primary kfd process.

The naming format of the sysfs entry of a secondary
kfd process is "context_%u" where %u is the context id.

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>

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This commit is contained in:

Zhu Lingshan 2025-10-14 17:16:06 +08:00 • committed by Alex Deucher

parent 1707d5760c

commit fac682a1d1

2 changed files with 80 additions and 3 deletions

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5

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

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78

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

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