Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
amdkfd: introduce new helper kfd_lookup_process_by_id
This commit introduces a new helper function
kfd_lookup_process_by_id which can find a
kfd process that identified by its context id from
the kfd process table
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>
authored by
Zhu Lingshan
and committed by
Alex Deucher
07506945
2a667e26
+22
+1
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+1
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
···
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struct kfd_process *kfd_lookup_process_by_pasid(u32 pasid,
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struct kfd_process_device **pdd);
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struct kfd_process *kfd_lookup_process_by_mm(const struct mm_struct *mm);
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+
struct kfd_process *kfd_lookup_process_by_id(const struct mm_struct *mm, u16 id);
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int kfd_process_gpuidx_from_gpuid(struct kfd_process *p, uint32_t gpu_id);
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int kfd_process_gpuid_from_node(struct kfd_process *p, struct kfd_node *node,
+21
drivers/gpu/drm/amd/amdkfd/kfd_process.c
+21
drivers/gpu/drm/amd/amdkfd/kfd_process.c
···
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return p;
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}
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+
/* This increments the process->ref counter. */
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struct kfd_process *kfd_lookup_process_by_id(const struct mm_struct *mm, u16 id)
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{
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struct kfd_process *p, *ret_p = NULL;
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unsigned int temp;
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int idx = srcu_read_lock(&kfd_processes_srcu);
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hash_for_each_rcu(kfd_processes_table, temp, p, kfd_processes) {
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if (p->mm == mm && p->context_id == id) {
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kref_get(&p->ref);
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ret_p = p;
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break;
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}
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}
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srcu_read_unlock(&kfd_processes_srcu, idx);
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return ret_p;
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}
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+
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/* kfd_process_evict_queues - Evict all user queues of a process
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*
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* Eviction is reference-counted per process-device. This means multiple