mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-30 12:49:36 +00:00
![Christian Gmeiner](/assets/img/avatar_default.png)
Track the pid per submit, so we can print the name and cmdline of the task which submitted the batch that caused the gpu to hang. Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2017 Etnaviv Project
|
|
*/
|
|
|
|
#include <linux/moduleparam.h>
|
|
|
|
#include "etnaviv_drv.h"
|
|
#include "etnaviv_dump.h"
|
|
#include "etnaviv_gem.h"
|
|
#include "etnaviv_gpu.h"
|
|
#include "etnaviv_sched.h"
|
|
#include "state.xml.h"
|
|
|
|
static int etnaviv_job_hang_limit = 0;
|
|
module_param_named(job_hang_limit, etnaviv_job_hang_limit, int , 0444);
|
|
static int etnaviv_hw_jobs_limit = 4;
|
|
module_param_named(hw_job_limit, etnaviv_hw_jobs_limit, int , 0444);
|
|
|
|
static struct dma_fence *etnaviv_sched_run_job(struct drm_sched_job *sched_job)
|
|
{
|
|
struct etnaviv_gem_submit *submit = to_etnaviv_submit(sched_job);
|
|
struct dma_fence *fence = NULL;
|
|
|
|
if (likely(!sched_job->s_fence->finished.error))
|
|
fence = etnaviv_gpu_submit(submit);
|
|
else
|
|
dev_dbg(submit->gpu->dev, "skipping bad job\n");
|
|
|
|
return fence;
|
|
}
|
|
|
|
static enum drm_gpu_sched_stat etnaviv_sched_timedout_job(struct drm_sched_job
|
|
*sched_job)
|
|
{
|
|
struct etnaviv_gem_submit *submit = to_etnaviv_submit(sched_job);
|
|
struct etnaviv_gpu *gpu = submit->gpu;
|
|
u32 dma_addr;
|
|
int change;
|
|
|
|
/* block scheduler */
|
|
drm_sched_stop(&gpu->sched, sched_job);
|
|
|
|
/*
|
|
* If the GPU managed to complete this jobs fence, the timout is
|
|
* spurious. Bail out.
|
|
*/
|
|
if (dma_fence_is_signaled(submit->out_fence))
|
|
goto out_no_timeout;
|
|
|
|
/*
|
|
* If the GPU is still making forward progress on the front-end (which
|
|
* should never loop) we shift out the timeout to give it a chance to
|
|
* finish the job.
|
|
*/
|
|
dma_addr = gpu_read(gpu, VIVS_FE_DMA_ADDRESS);
|
|
change = dma_addr - gpu->hangcheck_dma_addr;
|
|
if (gpu->completed_fence != gpu->hangcheck_fence ||
|
|
change < 0 || change > 16) {
|
|
gpu->hangcheck_dma_addr = dma_addr;
|
|
gpu->hangcheck_fence = gpu->completed_fence;
|
|
goto out_no_timeout;
|
|
}
|
|
|
|
if(sched_job)
|
|
drm_sched_increase_karma(sched_job);
|
|
|
|
/* get the GPU back into the init state */
|
|
etnaviv_core_dump(submit);
|
|
etnaviv_gpu_recover_hang(submit);
|
|
|
|
drm_sched_resubmit_jobs(&gpu->sched);
|
|
|
|
drm_sched_start(&gpu->sched, true);
|
|
return DRM_GPU_SCHED_STAT_NOMINAL;
|
|
|
|
out_no_timeout:
|
|
/* restart scheduler after GPU is usable again */
|
|
drm_sched_start(&gpu->sched, true);
|
|
return DRM_GPU_SCHED_STAT_NOMINAL;
|
|
}
|
|
|
|
static void etnaviv_sched_free_job(struct drm_sched_job *sched_job)
|
|
{
|
|
struct etnaviv_gem_submit *submit = to_etnaviv_submit(sched_job);
|
|
|
|
drm_sched_job_cleanup(sched_job);
|
|
|
|
etnaviv_submit_put(submit);
|
|
}
|
|
|
|
static const struct drm_sched_backend_ops etnaviv_sched_ops = {
|
|
.run_job = etnaviv_sched_run_job,
|
|
.timedout_job = etnaviv_sched_timedout_job,
|
|
.free_job = etnaviv_sched_free_job,
|
|
};
|
|
|
|
int etnaviv_sched_push_job(struct etnaviv_gem_submit *submit)
|
|
{
|
|
int ret = 0;
|
|
|
|
/*
|
|
* Hold the fence lock across the whole operation to avoid jobs being
|
|
* pushed out of order with regard to their sched fence seqnos as
|
|
* allocated in drm_sched_job_arm.
|
|
*/
|
|
mutex_lock(&submit->gpu->fence_lock);
|
|
|
|
drm_sched_job_arm(&submit->sched_job);
|
|
|
|
submit->out_fence = dma_fence_get(&submit->sched_job.s_fence->finished);
|
|
submit->out_fence_id = idr_alloc_cyclic(&submit->gpu->fence_idr,
|
|
submit->out_fence, 0,
|
|
INT_MAX, GFP_KERNEL);
|
|
if (submit->out_fence_id < 0) {
|
|
drm_sched_job_cleanup(&submit->sched_job);
|
|
ret = -ENOMEM;
|
|
goto out_unlock;
|
|
}
|
|
|
|
/* the scheduler holds on to the job now */
|
|
kref_get(&submit->refcount);
|
|
|
|
drm_sched_entity_push_job(&submit->sched_job);
|
|
|
|
out_unlock:
|
|
mutex_unlock(&submit->gpu->fence_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int etnaviv_sched_init(struct etnaviv_gpu *gpu)
|
|
{
|
|
int ret;
|
|
|
|
ret = drm_sched_init(&gpu->sched, &etnaviv_sched_ops,
|
|
etnaviv_hw_jobs_limit, etnaviv_job_hang_limit,
|
|
msecs_to_jiffies(500), NULL, NULL,
|
|
dev_name(gpu->dev), gpu->dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void etnaviv_sched_fini(struct etnaviv_gpu *gpu)
|
|
{
|
|
drm_sched_fini(&gpu->sched);
|
|
}
|