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	acpi_get_root_from_loader(void)			acpi_get_root_from_loader(void)
	{			{
	long acpi_root;			long acpi_root;

	if (TUNABLE_ULONG_FETCH("acpi.rsdp", &acpi_root))			if (TUNABLE_ULONG_FETCH("acpi.rsdp", &acpi_root))
	return (acpi_root);			return (acpi_root);

	/*			/*
	* The hints mechanism is unreliable (it fails if anybody ever			* The hints mechanism is considered legacy and has been replaced
	* compiled in hints to the kernel). It has been replaced
	* by the tunable method, but is used here as a fallback to			* by the tunable method, but is used here as a fallback to
	* retain maximum compatibility between old loaders and new			* retain maximum compatibility between old loaders and new
	* kernels. It can be removed after 14.0R.			* kernels. It can be removed after 14.0R.
	*/			*/
	if (resource_long_value("acpi", 0, "rsdp", &acpi_root) == 0)			if (resource_long_value("acpi", 0, "rsdp", &acpi_root) == 0)
	return (acpi_root);			return (acpi_root);

	return (0);			return (0);
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