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amdkfd: Introduce kfd_create_process_sysfs as a separate function

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KFD creates sysfs entries for a kfd_process in
function kfd_create_process when creating it.

This commit extracts the code creating sysfs
entries to a separate function because it
would be invoked in other code path like
creating secondary kfd contexts (kfd_process).

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>
This commit is contained in:
Zhu Lingshan 2025-04-22 17:28:41 +08:00 committed by Alex Deucher
parent f433db9c4b
commit 4cd255b969
2 changed files with 42 additions and 25 deletions
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1
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
View File

@ -1053,6 +1053,7 @@ int kfd_process_create_wq(void);
void kfd_process_destroy_wq(void);
void kfd_cleanup_processes(void);
struct kfd_process *kfd_create_process(struct task_struct *thread);
int kfd_create_process_sysfs(struct kfd_process *process);
struct kfd_process *kfd_get_process(const struct task_struct *task);
struct kfd_process *kfd_lookup_process_by_pasid(u32 pasid,
struct kfd_process_device **pdd);

66
drivers/gpu/drm/amd/amdkfd/kfd_process.c
View File

@ -825,6 +825,44 @@ static void kfd_process_device_destroy_ib_mem(struct kfd_process_device *pdd)
kfd_process_free_gpuvm(qpd->ib_mem, pdd, &qpd->ib_kaddr);
}
int kfd_create_process_sysfs(struct kfd_process *process)
{
int ret;
if (process->kobj) {
pr_warn("kobject already exsists for the kfd_process\n");
return -EINVAL;
}
process->kobj = kfd_alloc_struct(process->kobj);
if (!process->kobj) {
pr_warn("Creating procfs kobject failed");
return -ENOMEM;
}
ret = kobject_init_and_add(process->kobj, &procfs_type,
procfs.kobj, "%d",
(int)process->lead_thread->pid);
if (ret) {
pr_warn("Creating procfs pid directory failed");
kobject_put(process->kobj);
return ret;
}
kfd_sysfs_create_file(process->kobj, &process->attr_pasid,
"pasid");
process->kobj_queues = kobject_create_and_add("queues",
process->kobj);
if (!process->kobj_queues)
pr_warn("Creating KFD proc/queues folder failed");
kfd_procfs_add_sysfs_stats(process);
kfd_procfs_add_sysfs_files(process);
kfd_procfs_add_sysfs_counters(process);
return 0;
}
struct kfd_process *kfd_create_process(struct task_struct *thread)
{
struct kfd_process *process;
@ -874,31 +912,9 @@ struct kfd_process *kfd_create_process(struct task_struct *thread)
if (!procfs.kobj)
goto out;
process->kobj = kfd_alloc_struct(process->kobj);
if (!process->kobj) {
pr_warn("Creating procfs kobject failed");
goto out;
}
ret = kobject_init_and_add(process->kobj, &procfs_type,
procfs.kobj, "%d",
(int)process->lead_thread->pid);
if (ret) {
pr_warn("Creating procfs pid directory failed");
kobject_put(process->kobj);
goto out;
}
kfd_sysfs_create_file(process->kobj, &process->attr_pasid,
"pasid");
process->kobj_queues = kobject_create_and_add("queues",
process->kobj);
if (!process->kobj_queues)
pr_warn("Creating KFD proc/queues folder failed");
kfd_procfs_add_sysfs_stats(process);
kfd_procfs_add_sysfs_files(process);
kfd_procfs_add_sysfs_counters(process);
ret = kfd_create_process_sysfs(process);
if (ret)
pr_warn("Failed to create sysfs entry for the kfd_process");
kfd_debugfs_add_process(process);