Hi folks.
Why I cannot read content of some debugfs files which are should be readable.
https://lists.freedesktop.org/archives/amd-gfx/2018-December/029918.html
[mikhail@localhost ~]$ sudo bash
[sudo] password for mikhail:
[root@localhost mikhail]# cd /sys/kernel/debug/dri/0
[root@localhost 0]# xxd -e amdgpu_gca_config
xxd: amdgpu_gca_config: Operation not permitted
[root@localhost 0]# getenforce
Enforcing
[root@localhost 0]# setenforce 0
[root@localhost 0]# xxd -e amdgpu_gca_config
xxd: amdgpu_gca_config: Operation not permitted
[root@localhost 0]#
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Best Regards,
Mike Gavrilov.