void
k8pnow_acpi_pss_changed(struct acpicpu_pss * pss, int npss)
{
int curs, needtran;
struct k8pnow_cpu_state *cstate, *nstate;
uint32_t ctrl;
uint64_t status;
status = rdmsr(MSR_AMDK7_FIDVID_STATUS);
cstate = k8pnow_current_state;
nstate = malloc(sizeof(struct k8pnow_cpu_state), M_DEVBUF, M_NOWAIT);
if (!nstate)
return;
curs = k8pnow_acpi_states(nstate, pss, npss, status);
needtran = 0;
if (curs < 0) {
/* Our current opearting state is not among the ones found the new PSS */
curs = ((perflevel * npss) + 1) / 101;
if (curs >= npss)
curs = npss - 1;
needtran = 1;
}
ctrl = pss[curs].pss_ctrl;
nstate->rvo = PN8_ACPI_CTRL_TO_RVO(ctrl);
nstate->vst = PN8_ACPI_CTRL_TO_VST(ctrl);
nstate->mvs = PN8_ACPI_CTRL_TO_MVS(ctrl);
nstate->pll = PN8_ACPI_CTRL_TO_PLL(ctrl);
nstate->irt = PN8_ACPI_CTRL_TO_IRT(ctrl);
nstate->low = 0;
nstate->n_states = npss;
if (needtran)
k8pnow_transition(nstate, curs);
free(cstate, M_DEVBUF, sizeof(*cstate));
k8pnow_current_state = nstate;
}
void
k8pnow_acpi_pss_changed(struct acpicpu_pss * pss, int npss)
{
int curs;
struct k8pnow_cpu_state * cstate;
uint32_t ctrl;
uint64_t status;
status = rdmsr(MSR_AMDK7_FIDVID_STATUS);
cstate = k8pnow_current_state;
curs = k8pnow_acpi_states(cstate, pss, npss, status);
ctrl = pss[curs].pss_ctrl;
cstate->rvo = PN8_ACPI_CTRL_TO_RVO(ctrl);
cstate->vst = PN8_ACPI_CTRL_TO_VST(ctrl);
cstate->mvs = PN8_ACPI_CTRL_TO_MVS(ctrl);
cstate->pll = PN8_ACPI_CTRL_TO_PLL(ctrl);
cstate->irt = PN8_ACPI_CTRL_TO_IRT(ctrl);
cstate->low = 0;
cstate->n_states = npss;
}
int
k8pnow_acpi_init(struct k8pnow_cpu_state * cstate, uint64_t status)
{
int curs;
uint32_t ctrl;
struct acpicpu_pss *pss;
cstate->n_states = acpicpu_fetch_pss(&pss);
if (cstate->n_states == 0)
return 0;
acpicpu_set_notify(k8pnow_acpi_pss_changed);
curs = k8pnow_acpi_states(cstate, pss, cstate->n_states, status);
ctrl = pss[curs].pss_ctrl;
cstate->rvo = PN8_ACPI_CTRL_TO_RVO(ctrl);
cstate->vst = PN8_ACPI_CTRL_TO_VST(ctrl);
cstate->mvs = PN8_ACPI_CTRL_TO_MVS(ctrl);
cstate->pll = PN8_ACPI_CTRL_TO_PLL(ctrl);
cstate->irt = PN8_ACPI_CTRL_TO_IRT(ctrl);
cstate->low = 0;
return 1;
}
