amdkfd: introduce new ioctl AMDKFD_IOC_CREATE_PROCESS

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This commit implemetns a new ioctl AMDKFD_IOC_CREATE_PROCESS
that creates a new secondary kfd_progress on the FD.

To keep backward compatibility, userspace programs need to invoke
this ioctl explicitly on a FD to create a secondary
kfd_process which replacing its primary kfd_process.

This commit bumps ioctl minor version.

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 2025-08-21 17:22:44 +08:00 • committed by Alex Deucher

parent e3491fa3f3

commit cc6b66d661

4 changed files with 53 additions and 4 deletions

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45

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

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1

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

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3

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

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8

include/uapi/linux/kfd_ioctl.h

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