add mqd support based on queue of for each client-id so the gpu address could be used to dump the mqd.
Signed-off-by: Sunil Khatri <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 50 +++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c index 295e7186e156..50b9df9caf00 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c @@ -343,6 +343,46 @@ 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 = (struct amdgpu_usermode_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 0; + } + + 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 +392,8 @@ 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; + struct dentry *debugfs_queue; bool skip_map_queue; uint64_t index; int qid, r = 0; @@ -475,6 +517,14 @@ 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; + + /* Create a debugfs directory for the client in root on drm debugfs */ + debugfs_queue = debugfs_create_dir(queue_name, filp->debugfs_client); + debugfs_create_file("mqd_info", 0444, debugfs_queue, queue, &amdgpu_mqd_info_fops); + kfree(queue_name); args->out.queue_id = qid; -- 2.34.1
