Proxmox-Port/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-08-27 15:50:48 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/amdgpu: add support of debugfs for mqd information

Browse Source 
Add debugfs support for mqd for each queue of the client.

The address exposed to debugfs could be used to dump
the mqd.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20250704075548.1549849-5-sunil.khatri@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Sunil Khatri 2025-07-04 13:25:48 +05:30 committed by Christian König
parent 719b378d37
commit c03ea34cbf
2 changed files with 53 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
View File

@ -318,6 +318,9 @@ amdgpu_userq_destroy(struct drm_file *filp, int queue_id)
amdgpu_bo_unreserve(queue->db_obj.obj);
}
amdgpu_bo_unref(&queue->db_obj.obj);
debugfs_remove_recursive(queue->debugfs_queue);
r = amdgpu_userq_unmap_helper(uq_mgr, queue);
amdgpu_userq_cleanup(uq_mgr, queue, queue_id);
mutex_unlock(&uq_mgr->userq_mutex);
@ -343,6 +346,46 @@ static int amdgpu_userq_priority_permit(struct drm_file *filp,
return -EACCES;
}
#if defined(CONFIG_DEBUG_FS)
static int amdgpu_mqd_info_read(struct seq_file *m, void *unused)
{
struct amdgpu_usermode_queue *queue = m->private;
struct amdgpu_bo *bo;
int r;
if (!queue || !queue->mqd.obj)
return -EINVAL;
bo = amdgpu_bo_ref(queue->mqd.obj);
r = amdgpu_bo_reserve(bo, true);
if (r) {
amdgpu_bo_unref(&bo);
return -EINVAL;
}
seq_printf(m, "queue_type %d\n", queue->queue_type);
seq_printf(m, "mqd_gpu_address: 0x%llx\n", amdgpu_bo_gpu_offset(queue->mqd.obj));
amdgpu_bo_unreserve(bo);
amdgpu_bo_unref(&bo);
return 0;
}
static int amdgpu_mqd_info_open(struct inode *inode, struct file *file)
{
return single_open(file, amdgpu_mqd_info_read, inode->i_private);
}
static const struct file_operations amdgpu_mqd_info_fops = {
.owner = THIS_MODULE,
.open = amdgpu_mqd_info_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif
static int
amdgpu_userq_create(struct drm_file *filp, union drm_amdgpu_userq *args)
{
@ -352,6 +395,7 @@ amdgpu_userq_create(struct drm_file *filp, union drm_amdgpu_userq *args)
const struct amdgpu_userq_funcs *uq_funcs;
struct amdgpu_usermode_queue *queue;
struct amdgpu_db_info db_info;
char *queue_name;
bool skip_map_queue;
uint64_t index;
int qid, r = 0;
@ -475,6 +519,14 @@ amdgpu_userq_create(struct drm_file *filp, union drm_amdgpu_userq *args)
}
}
queue_name = kasprintf(GFP_KERNEL, "queue-%d", qid);
if (!queue_name)
return -ENOMEM;
/* Queue dentry per client to hold MQD information */
queue->debugfs_queue = debugfs_create_dir(queue_name, filp->debugfs_client);
debugfs_create_file("mqd_info", 0444, queue->debugfs_queue, queue, &amdgpu_mqd_info_fops);
kfree(queue_name);
args->out.queue_id = qid;

1
drivers/gpu/drm/amd/amdgpu/amdgpu_userq.h
View File

@ -65,6 +65,7 @@ struct amdgpu_usermode_queue {
struct dma_fence *last_fence;
u32 xcp_id;
int priority;
struct dentry *debugfs_queue;
};
struct amdgpu_userq_funcs {