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 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 struct dma_fence *
etnaviv_sched_dependency(struct drm_sched_job *sched_job,
struct drm_sched_entity *entity)
{
struct etnaviv_gem_submit *submit = to_etnaviv_submit(sched_job);
struct dma_fence *fence;
int i;
if (unlikely(submit->in_fence)) {
fence = submit->in_fence;
submit->in_fence = NULL;
if (!dma_fence_is_signaled(fence))
return fence;
dma_fence_put(fence);
}
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_submit_bo *bo = &submit->bos[i];
int j;
if (bo->excl) {
fence = bo->excl;
bo->excl = NULL;
if (!dma_fence_is_signaled(fence))
return fence;
dma_fence_put(fence);
}
for (j = 0; j < bo->nr_shared; j++) {
if (!bo->shared[j])
continue;
fence = bo->shared[j];
bo->shared[j] = NULL;
if (!dma_fence_is_signaled(fence))
return fence;
dma_fence_put(fence);
}
kfree(bo->shared);
bo->nr_shared = 0;
bo->shared = NULL;
}
return NULL;
}
static void 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;
/* block scheduler */
kthread_park(gpu->sched.thread);
drm_sched_hw_job_reset(&gpu->sched, sched_job);
/* get the GPU back into the init state */
etnaviv_core_dump(gpu);
etnaviv_gpu_recover_hang(gpu);
/* restart scheduler after GPU is usable again */
drm_sched_job_recovery(&gpu->sched);
kthread_unpark(gpu->sched.thread);
}
static void 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;
/*
* If the GPU managed to complete this jobs fence, the timout is
* spurious. Bail out.
*/
if (dma_fence_is_signaled(submit->out_fence))
return;
/*
* 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 (change < 0 || change > 16) {
gpu->hangcheck_dma_addr = dma_addr;
return;
}
/* block scheduler */
drm_sched_stop(&gpu->sched);
if(sched_job)
drm_sched_increase_karma(sched_job);
/* get the GPU back into the init state */
etnaviv_core_dump(gpu);
etnaviv_gpu_recover_hang(gpu);
drm_sched_resubmit_jobs(&gpu->sched);
/* restart scheduler after GPU is usable again */
drm_sched_start(&gpu->sched, true);
}