The radeon files in /sys/kernel/debug/dri/*/ are only available for the first GPU. Possible solution is to move the static _radeon_debugfs array into rdev, so that each GPU get its own. ls -l /sys/kernel/debug/dri/0/ -r--r--r-- 1 root root 0 2010-02-14 10:11 bufs -r--r--r-- 1 root root 0 2010-02-14 10:11 clients -r--r--r-- 1 root root 0 2010-02-14 10:11 gem_names -r--r--r-- 1 root root 0 2010-02-14 10:11 gem_objects -r--r--r-- 1 root root 0 2010-02-14 10:11 name -r--r--r-- 1 root root 0 2010-02-14 10:11 queues -r--r--r-- 1 root root 0 2010-02-14 10:11 r600_mc_info -r--r--r-- 1 root root 0 2010-02-14 10:11 r600_ring_info -r--r--r-- 1 root root 0 2010-02-14 10:11 radeon_fence_info [...] -r--r--r-- 1 root root 0 2010-02-14 10:11 vm -r--r--r-- 1 root root 0 2010-02-14 10:11 vma ls -l /sys/kernel/debug/dri/1/ -r--r--r-- 1 root root 0 2010-02-14 10:11 bufs -r--r--r-- 1 root root 0 2010-02-14 10:11 clients -r--r--r-- 1 root root 0 2010-02-14 10:11 gem_names -r--r--r-- 1 root root 0 2010-02-14 10:11 gem_objects -r--r--r-- 1 root root 0 2010-02-14 10:11 name -r--r--r-- 1 root root 0 2010-02-14 10:11 queues -r--r--r-- 1 root root 0 2010-02-14 10:11 vm -r--r--r-- 1 root root 0 2010-02-14 10:11 vma
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