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drm/lima: save process info for debug usage

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When task fail, we can find its process with this information.

Tested-by: Andreas Baierl <ichgeh@imkreisrum.de>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200222024210.18697-2-yuq825@gmail.com
This commit is contained in:
Qiang Yu 2020-02-22 10:42:06 +08:00
parent f019190b7d
commit 6ebd24b6bf
2 changed files with 8 additions and 0 deletions
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3
drivers/gpu/drm/lima/lima_ctx.c
View file

@ -27,6 +27,9 @@ int lima_ctx_create(struct lima_device *dev, struct lima_ctx_mgr *mgr, u32 *id)
if (err < 0)
goto err_out0;
ctx->pid = task_pid_nr(current);
get_task_comm(ctx->pname, current);
return 0;
err_out0:

5
drivers/gpu/drm/lima/lima_ctx.h
View file

@ -5,6 +5,7 @@
#define __LIMA_CTX_H__
#include <linux/xarray.h>
#include <linux/sched.h>
#include "lima_device.h"
@ -13,6 +14,10 @@ struct lima_ctx {
struct lima_device *dev;
struct lima_sched_context context[lima_pipe_num];
atomic_t guilty;
/* debug info */
char pname[TASK_COMM_LEN];
pid_t pid;
};
struct lima_ctx_mgr {