acpi_rsdp
if (acpi_checksum(ptr, sizeof(struct acpi_rsdp)) == 0)
struct acpi_rsdp *rsdp = NULL;
if (acpi_checksum(ptr, sizeof(struct acpi_rsdp)) == 0)
struct acpi_rsdp *rsdp;
if (acpi_map(base, sizeof(struct acpi_rsdp), &handle)) {
rsdp = (struct acpi_rsdp *)handle.va;
acpi_loadtables(struct acpi_softc *sc, struct acpi_rsdp *rsdp)
int acpi_loadtables(struct acpi_softc *, struct acpi_rsdp *);