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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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13
drivers/gpu/drm/lima/lima_device.c
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@@ -344,6 +344,12 @@ int lima_device_init(struct lima_device *ldev)
if (err)
goto err_out5;
ldev->dump.magic = LIMA_DUMP_MAGIC;
ldev->dump.version_major = LIMA_DUMP_MAJOR;
ldev->dump.version_minor = LIMA_DUMP_MINOR;
INIT_LIST_HEAD(&ldev->error_task_list);
mutex_init(&ldev->error_task_list_lock);
dev_info(ldev->dev, "bus rate = %lu\n", clk_get_rate(ldev->clk_bus));
dev_info(ldev->dev, "mod rate = %lu", clk_get_rate(ldev->clk_gpu));
@@ -370,6 +376,13 @@ err_out0:
void lima_device_fini(struct lima_device *ldev)
{
int i;
struct lima_sched_error_task *et, *tmp;
list_for_each_entry_safe(et, tmp, &ldev->error_task_list, list) {
list_del(&et->list);
kvfree(et);
}
mutex_destroy(&ldev->error_task_list_lock);
lima_fini_pp_pipe(ldev);
lima_fini_gp_pipe(ldev);