drm/amdkfd: Limit per-process xnack support for GFX12.1

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GFX12.1 doesn't support different processes with different xnack
setting. Hence, xnack changes from its default setting needs driver
reload with noretry module parameter.

However, if driver boots-up with xnack on and process sets xnack off,
this condition is supported. In this case, only driver takes xnack off
path whereas hardware / firmware considers xnack is on.

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Philip.Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Harish Kasiviswanathan 2025-12-09 13:47:09 -05:00 • committed by Alex Deucher

parent bfeb7b28e9

commit 05c0109e12

2 changed files with 12 additions and 10 deletions

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19

drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v12_1.c

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3

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

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