EVERGREEN_GRPH_SWAP_CONTROL 2198 drivers/gpu/drm/amd/amdgpu/sid.h #define EVERGREEN_GRPH_SWAP_CONTROL                     0x1a03
EVERGREEN_GRPH_SWAP_CONTROL  121 drivers/gpu/drm/radeon/evergreen_reg.h #define EVERGREEN_GRPH_SWAP_CONTROL                     0x680c