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| author | Qiang Yu <yuq825@gmail.com> | 2020-02-22 05:42:06 +0300 |
|---|---|---|
| committer | Qiang Yu <yuq825@gmail.com> | 2020-03-22 04:34:33 +0300 |
| commit | 6ebd24b6bf106d3195bdbfeaa1ac77571e3dc670 (patch) | |
| tree | f46407c3e1eaf3e09df0ddbcd690dc6da66c1bc1 | |
| parent | f019190b7d2708baec0732c5e915923430eab8dc (diff) | |
| download | linux-6ebd24b6bf106d3195bdbfeaa1ac77571e3dc670.tar.xz | |
drm/lima: save process info for debug usage
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
| -rw-r--r-- | drivers/gpu/drm/lima/lima_ctx.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/lima/lima_ctx.h | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/lima/lima_ctx.c b/drivers/gpu/drm/lima/lima_ctx.c index 22fff6caa961..891d5cd5019a 100644 --- a/drivers/gpu/drm/lima/lima_ctx.c +++ b/drivers/gpu/drm/lima/lima_ctx.c @@ -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: diff --git a/drivers/gpu/drm/lima/lima_ctx.h b/drivers/gpu/drm/lima/lima_ctx.h index 6154e5c9bfe4..74e2be09090f 100644 --- a/drivers/gpu/drm/lima/lima_ctx.h +++ b/drivers/gpu/drm/lima/lima_ctx.h @@ -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 { |