diff options
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.c | 23 |
3 files changed, 22 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index 2771d15..9facd4b 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -86,6 +86,7 @@ struct msm_gem_submit { struct list_head bo_list; struct ww_acquire_ctx ticket; struct fence *fence; + struct pid *pid; /* submitting process */ bool valid; /* true if no cmdstream patching needed */ unsigned int nr_cmds; unsigned int nr_bos; diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 711a658c..a9a0011 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -45,6 +45,7 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev, submit->dev = dev; submit->gpu = gpu; + submit->pid = get_pid(task_pid(current)); /* initially, until copy_from_user() and bo lookup succeeds: */ submit->nr_bos = 0; @@ -60,6 +61,7 @@ void msm_gem_submit_free(struct msm_gem_submit *submit) { fence_put(submit->fence); list_del(&submit->node); + put_pid(submit->pid); kfree(submit); } diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 5aed93a..36ed53e 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -272,16 +272,30 @@ static void recover_worker(struct work_struct *work) { struct msm_gpu *gpu = container_of(work, struct msm_gpu, recover_work); struct drm_device *dev = gpu->dev; + struct msm_gem_submit *submit; uint32_t fence = gpu->funcs->last_fence(gpu); - dev_err(dev->dev, "%s: hangcheck recover!\n", gpu->name); - msm_update_fence(gpu->fctx, fence + 1); mutex_lock(&dev->struct_mutex); - if (msm_gpu_active(gpu)) { - struct msm_gem_submit *submit; + dev_err(dev->dev, "%s: hangcheck recover!\n", gpu->name); + list_for_each_entry(submit, &gpu->submit_list, node) { + if (submit->fence->seqno == (fence + 1)) { + struct task_struct *task; + + rcu_read_lock(); + task = pid_task(submit->pid, PIDTYPE_PID); + if (task) { + dev_err(dev->dev, "%s: offending task: %s\n", + gpu->name, task->comm); + } + rcu_read_unlock(); + break; + } + } + + if (msm_gpu_active(gpu)) { /* retire completed submits, plus the one that hung: */ retire_submits(gpu); @@ -293,6 +307,7 @@ static void recover_worker(struct work_struct *work) gpu->funcs->submit(gpu, submit, NULL); } } + mutex_unlock(&dev->struct_mutex); msm_gpu_retire(gpu); |
