radeon_atombios_sideport_present
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
bool radeon_atombios_sideport_present(struct radeon_device *rdev);
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);