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drm/lima: save task info dump when task fail

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Save all information to start a task which can be exported to user
for debug usage. Dump file data format is specified in lima_dump.h

v2:
Add include header to address build robot complain.

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/20200307134423.24329-1-yuq825@gmail.com
This commit is contained in:
Qiang Yu 2020-03-07 21:44:23 +08:00
parent c67a3d4f68
commit b78edd46f6
5 changed files with 235 additions and 0 deletions
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77
drivers/gpu/drm/lima/lima_dump.h Normal file
View file

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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2020 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_DUMP_H__
#define __LIMA_DUMP_H__
#include <linux/types.h>
/**
* dump file format for all the information to start a lima task
*
* top level format
* | magic code "LIMA" | format version | num tasks | data size |
* | reserved | reserved | reserved | reserved |
* | task 1 ID | task 1 size | num chunks | reserved | task 1 data |
* | task 2 ID | task 2 size | num chunks | reserved | task 2 data |
* ...
*
* task data format
* | chunk 1 ID | chunk 1 size | reserved | reserved | chunk 1 data |
* | chunk 2 ID | chunk 2 size | reserved | reserved | chunk 2 data |
* ...
*
*/
#define LIMA_DUMP_MAJOR 1
#define LIMA_DUMP_MINOR 0
#define LIMA_DUMP_MAGIC 0x414d494c
struct lima_dump_head {
__u32 magic;
__u16 version_major;
__u16 version_minor;
__u32 num_tasks;
__u32 size;
__u32 reserved[4];
};
#define LIMA_DUMP_TASK_GP 0
#define LIMA_DUMP_TASK_PP 1
#define LIMA_DUMP_TASK_NUM 2
struct lima_dump_task {
__u32 id;
__u32 size;
__u32 num_chunks;
__u32 reserved;
};
#define LIMA_DUMP_CHUNK_FRAME 0
#define LIMA_DUMP_CHUNK_BUFFER 1
#define LIMA_DUMP_CHUNK_PROCESS_NAME 2
#define LIMA_DUMP_CHUNK_PROCESS_ID 3
#define LIMA_DUMP_CHUNK_NUM 4
struct lima_dump_chunk {
__u32 id;
__u32 size;
__u32 reserved[2];
};
struct lima_dump_chunk_buffer {
__u32 id;
__u32 size;
__u32 va;
__u32 reserved;
};
struct lima_dump_chunk_pid {
__u32 id;
__u32 size;
__u32 pid;
__u32 reserved;
};
#endif