drm/amdgpu: enable 48-bit IH timestamp counter

By default this timestamp is 32 bit counter. It gets
overflowed in around 10 minutes.

Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Sierra 2021-01-15 17:03:18 -06:00 • committed by Alex Deucher
commit 9a9c59a8f4