mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-01 14:44:12 +00:00
Code Issues Releases Wiki Activity

drm/lima: remove guilty drm_sched context handling

Browse source 
Marking the context as guilty currently only makes the application which
hits a single timeout problem to stop its rendering context entirely.
All jobs submitted later are dropped from the guilty context.

Lima runs on fairly underpowered hardware for modern standards and it is
not entirely unreasonable that a rendering job may time out occasionally
due to high system load or too demanding application stack. In this case
it would be generally preferred to report the error but try to keep the
application going.

Other similar embedded GPU drivers don't make use of the guilty context
flag. Now that there are reliability improvements to the lima timeout
recovery handling, drop the guilty contexts to let the application keep
running in this case.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240124025947.2110659-7-nunes.erico@gmail.com
This commit is contained in:
Erico Nunes 2024-01-24 03:59:45 +01:00 committed by Qiang Yu
parent 53cb55b202
commit e721d1cc81
4 changed files with 4 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/gpu/drm/lima/lima_ctx.c
View file

@ -19,7 +19,7 @@ int lima_ctx_create(struct lima_device *dev, struct lima_ctx_mgr *mgr, u32 *id)
kref_init(&ctx->refcnt);
for (i = 0; i < lima_pipe_num; i++) {
err = lima_sched_context_init(dev->pipe + i, ctx->context + i, &ctx->guilty);
err = lima_sched_context_init(dev->pipe + i, ctx->context + i);
if (err)
goto err_out0;
}

1
drivers/gpu/drm/lima/lima_ctx.h
View file

@ -13,7 +13,6 @@ struct lima_ctx {
struct kref refcnt;
struct lima_device *dev;
struct lima_sched_context context[lima_pipe_num];
atomic_t guilty;
/* debug info */
char pname[TASK_COMM_LEN];

5
drivers/gpu/drm/lima/lima_sched.c
View file

@ -154,13 +154,12 @@ void lima_sched_task_fini(struct lima_sched_task *task)
}
int lima_sched_context_init(struct lima_sched_pipe *pipe,
struct lima_sched_context *context,
atomic_t *guilty)
struct lima_sched_context *context)
{
struct drm_gpu_scheduler *sched = &pipe->base;
return drm_sched_entity_init(&context->base, DRM_SCHED_PRIORITY_NORMAL,
&sched, 1, guilty);
&sched, 1, NULL);
}
void lima_sched_context_fini(struct lima_sched_pipe *pipe,

3
drivers/gpu/drm/lima/lima_sched.h
View file

@ -91,8 +91,7 @@ int lima_sched_task_init(struct lima_sched_task *task,
void lima_sched_task_fini(struct lima_sched_task *task);
int lima_sched_context_init(struct lima_sched_pipe *pipe,
struct lima_sched_context *context,
atomic_t *guilty);
struct lima_sched_context *context);
void lima_sched_context_fini(struct lima_sched_pipe *pipe,
struct lima_sched_context *context);
struct dma_fence *lima_sched_context_queue_task(struct lima_sched_task *task);