Symbol: BIOS_SCRATCH_4
sys/dev/pci/drm/amd/pm/legacy-dpm/si_dpm.c
3412
return (u8) ((RREG32(BIOS_SCRATCH_4) >> 16) & 0xff);
sys/dev/pci/drm/radeon/rv770_dpm.c
1307
return (u8) ((RREG32(BIOS_SCRATCH_4) >> 16) & 0xff);