drm/amdkfd: change kfd process kref count at creation

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kfd process kref count(process->ref) is initialized to 1 by kref_init. After
it is created not need to increase its kref. Instad add kfd process kref at kfd
process mmu notifier allocation since we already decrease the kref at
free_notifier of mmu_notifier_ops, so pair them.

When user process opens kfd node multiple times the kfd process kref is
increased each time to balance with kfd node close operation.

Signed-off-by: Xiaogang Chen <xiaogang.chen@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Xiaogang Chen 2024-10-28 15:06:19 -05:00 • committed by Alex Deucher

parent 408d208127

commit 6cb6d437b5

1 changed files with 6 additions and 8 deletions

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

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