https://bugs.freedesktop.org/show_bug.cgi?id=100304
Bug ID: 100304 Summary: [bisected] Kernel oops on startup Product: DRI Version: DRI git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: mike@fireburn.co.uk
Created attachment 130353 --> https://bugs.freedesktop.org/attachment.cgi?id=130353&action=edit Screen shot
Bisected back to:
2d38d25554b739b50eec254205f769580751fb02 is the first bad commit commit 2d38d25554b739b50eec254205f769580751fb02 Author: David Panariti David.Panariti@amd.com Date: Mon Mar 13 13:33:18 2017 -0400
drm/amdgpu: Switch baremetal to use KIQ for compute ring management.
KIQ is the Kernel Interface Queue for managing the MEC. Rather than setting up rings via direct MMIO of ring registers, the rings are configured via special packets sent to the KIQ. The allows the MEC to better manage shared resources and certain power events.
Signed-off-by: David Panariti David.Panariti@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Acked-by: Tom St Denis tom.stdenis@amd.com Signed-off-by: Alex Deucher <alexander.deucher@amd.com