// license that can be found in the LICENSE file.

package runtime

const (
	_VDSO_TH_ALGO_RISCV_RDTIME = 1
)

func getCntxct() uint32

//go:nosplit
func (th *vdsoTimehands) getTimecounter() (uint32, bool) {
	switch th.algo {
	case _VDSO_TH_ALGO_RISCV_RDTIME:
		return getCntxct(), true
	default:
		return 0, false
	}

// license that can be found in the LICENSE file.

package runtime

const (
	_VDSO_TH_ALGO_ARM_GENTIM = 1
)

func getCntxct(physical bool) uint32

//go:nosplit
func (th *vdsoTimehands) getTimecounter() (uint32, bool) {
	switch th.algo {
	case _VDSO_TH_ALGO_ARM_GENTIM:
		return getCntxct(th.physical != 0), true
	default:
		return 0, false
	}

// license that can be found in the LICENSE file.

package runtime

const (
	_VDSO_TH_ALGO_ARM_GENTIM = 1
)

func getCntxct(physical bool) uint32

//go:nosplit
func (th *vdsoTimehands) getTimecounter() (uint32, bool) {
	switch th.algo {
	case _VDSO_TH_ALGO_ARM_GENTIM:
		return getCntxct(th.physical != 0), true
	default:
		return 0, false
	}

	if mmapErr != 0 {
		newP = ^uintptr(0)
	}
	if !atomic.Casuintptr(&hpetDevMap[idx], 0, newP) && mmapErr == 0 {
		munmap(addr, physPageSize)
	}
}

//go:nosplit
func (th *vdsoTimehands) getTimecounter() (uint32, bool) {
	switch th.algo {
	case _VDSO_TH_ALGO_X86_TSC:
		return th.getTSCTimecounter(), true
	case _VDSO_TH_ALGO_X86_HPET:
		return th.getHPETTimecounter()
	default:
		return 0, false
	}

		}

		curr := atomic.Load(&timekeepSharedPage.current) // atomic_load_acq_32
		th := &timehands[curr]
		gen := atomic.Load(&th.gen) // atomic_load_acq_32
		bt = th.offset

		if tc, ok := th.getTimecounter(); !ok {
			return zeroBintime
		} else {
			delta := (tc - th.offset_count) & th.counter_mask
			bt.AddX(th.scale * uint64(delta))
		}
		if abs {
			bt.Add(&th.boottime)
		}