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drm/lima: recover task by enlarging heap buffer

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Increase heap buffer backup memory when GP receive PLBU
out of memory interrupt, then resume the task.

Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Andreas Baierl <ichgeh@imkreisrum.de>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116131157.13346-5-yuq825@gmail.com
This commit is contained in:
Qiang Yu
2020-01-16 21:11:56 +08:00
parent 6aebc51d7a
commit 2081e8dcf1
5 changed files with 97 additions and 6 deletions
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33
drivers/gpu/drm/lima/lima_sched.c
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@@ -312,6 +312,26 @@ static const struct drm_sched_backend_ops lima_sched_ops = {
.free_job = lima_sched_free_job,
};
static void lima_sched_recover_work(struct work_struct *work)
{
struct lima_sched_pipe *pipe =
container_of(work, struct lima_sched_pipe, recover_work);
int i;
for (i = 0; i < pipe->num_l2_cache; i++)
lima_l2_cache_flush(pipe->l2_cache[i]);
if (pipe->bcast_mmu) {
lima_mmu_flush_tlb(pipe->bcast_mmu);
} else {
for (i = 0; i < pipe->num_mmu; i++)
lima_mmu_flush_tlb(pipe->mmu[i]);
}
if (pipe->task_recover(pipe))
drm_sched_fault(&pipe->base);
}
int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name)
{
unsigned int timeout = lima_sched_timeout_ms > 0 ?
@@ -320,6 +340,8 @@ int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name)
pipe->fence_context = dma_fence_context_alloc(1);
spin_lock_init(&pipe->fence_lock);
INIT_WORK(&pipe->recover_work, lima_sched_recover_work);
return drm_sched_init(&pipe->base, &lima_sched_ops, 1, 0,
msecs_to_jiffies(timeout), name);
}
@@ -331,11 +353,14 @@ void lima_sched_pipe_fini(struct lima_sched_pipe *pipe)
void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe)
{
if (pipe->error)
drm_sched_fault(&pipe->base);
else {
struct lima_sched_task *task = pipe->current_task;
struct lima_sched_task *task = pipe->current_task;
if (pipe->error) {
if (task && task->recoverable)
schedule_work(&pipe->recover_work);
else
drm_sched_fault(&pipe->base);
} else {
pipe->task_fini(pipe);
dma_fence_signal(task->fence);
}