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Differential D23110 Diff 66776 sys/dev/acpica/acpi_cpu.c

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sys/dev/acpica/acpi_cpu.c

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/* Assume we won't be using generic Cx mode by default */ /* Assume we won't be using generic Cx mode by default */
cpu_cx_generic = FALSE; cpu_cx_generic = FALSE;
/* Install hw.acpi.cpu sysctl tree */ /* Install hw.acpi.cpu sysctl tree */
acpi_sc = acpi_device_get_parent_softc(dev); acpi_sc = acpi_device_get_parent_softc(dev);
sysctl_ctx_init(&cpu_sysctl_ctx); sysctl_ctx_init(&cpu_sysctl_ctx);
cpu_sysctl_tree = SYSCTL_ADD_NODE(&cpu_sysctl_ctx, cpu_sysctl_tree = SYSCTL_ADD_NODE(&cpu_sysctl_ctx,
SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "cpu", SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "cpu",
CTLFLAG_RD, 0, "node for CPU children"); CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "node for CPU children");
} }
/* /*
* Before calling any CPU methods, collect child driver feature hints * Before calling any CPU methods, collect child driver feature hints
* and notify ACPI of them. We support unified SMP power control * and notify ACPI of them. We support unified SMP power control
* so advertise this ourselves. Note this is not the same as independent * so advertise this ourselves. Note this is not the same as independent
* SMP control where each CPU can have different settings. * SMP control where each CPU can have different settings.
*/ */
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/* Perform Cx final initialization. */ /* Perform Cx final initialization. */
for (i = 0; i < cpu_ndevices; i++) { for (i = 0; i < cpu_ndevices; i++) {
sc = device_get_softc(cpu_devices[i]); sc = device_get_softc(cpu_devices[i]);
acpi_cpu_startup_cx(sc); acpi_cpu_startup_cx(sc);
} }
/* Add a sysctl handler to handle global Cx lowest setting */ /* Add a sysctl handler to handle global Cx lowest setting */
SYSCTL_ADD_PROC(&cpu_sysctl_ctx, SYSCTL_CHILDREN(cpu_sysctl_tree), SYSCTL_ADD_PROC(&cpu_sysctl_ctx, SYSCTL_CHILDREN(cpu_sysctl_tree),
OID_AUTO, "cx_lowest", CTLTYPE_STRING | CTLFLAG_RW, OID_AUTO, "cx_lowest", CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
NULL, 0, acpi_cpu_global_cx_lowest_sysctl, "A", NULL, 0, acpi_cpu_global_cx_lowest_sysctl, "A",
"Global lowest Cx sleep state to use"); "Global lowest Cx sleep state to use");
/* Take over idling from cpu_idle_default(). */ /* Take over idling from cpu_idle_default(). */
cpu_cx_lowest_lim = 0; cpu_cx_lowest_lim = 0;
for (i = 0; i < cpu_ndevices; i++) { for (i = 0; i < cpu_ndevices; i++) {
sc = device_get_softc(cpu_devices[i]); sc = device_get_softc(cpu_devices[i]);
enable_idle(sc); enable_idle(sc);
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acpi_cpu_cx_list(sc); acpi_cpu_cx_list(sc);
SYSCTL_ADD_STRING(&sc->cpu_sysctl_ctx, SYSCTL_ADD_STRING(&sc->cpu_sysctl_ctx,
SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)),
OID_AUTO, "cx_supported", CTLFLAG_RD, OID_AUTO, "cx_supported", CTLFLAG_RD,
sc->cpu_cx_supported, 0, sc->cpu_cx_supported, 0,
"Cx/microsecond values for supported Cx states"); "Cx/microsecond values for supported Cx states");
SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx, SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx,
SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), OID_AUTO,
OID_AUTO, "cx_lowest", CTLTYPE_STRING | CTLFLAG_RW, "cx_lowest", CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
(void *)sc, 0, acpi_cpu_cx_lowest_sysctl, "A", (void *)sc, 0, acpi_cpu_cx_lowest_sysctl, "A",
"lowest Cx sleep state to use"); "lowest Cx sleep state to use");
SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx, SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx,
SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), OID_AUTO,
OID_AUTO, "cx_usage", CTLTYPE_STRING | CTLFLAG_RD, "cx_usage", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
(void *)sc, 0, acpi_cpu_usage_sysctl, "A", (void *)sc, 0, acpi_cpu_usage_sysctl, "A",
"percent usage for each Cx state"); "percent usage for each Cx state");
SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx, SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx,
SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), OID_AUTO,
OID_AUTO, "cx_usage_counters", CTLTYPE_STRING | CTLFLAG_RD, "cx_usage_counters", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
(void *)sc, 0, acpi_cpu_usage_counters_sysctl, "A", (void *)sc, 0, acpi_cpu_usage_counters_sysctl, "A",
"Cx sleep state counters"); "Cx sleep state counters");
#if defined(__i386__) || defined(__amd64__) #if defined(__i386__) || defined(__amd64__)
SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx, SYSCTL_ADD_PROC(&sc->cpu_sysctl_ctx,
SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), SYSCTL_CHILDREN(device_get_sysctl_tree(sc->cpu_dev)), OID_AUTO,
OID_AUTO, "cx_method", CTLTYPE_STRING | CTLFLAG_RD, "cx_method", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
(void *)sc, 0, acpi_cpu_method_sysctl, "A", (void *)sc, 0, acpi_cpu_method_sysctl, "A",
"Cx entrance methods"); "Cx entrance methods");
#endif #endif
/* Signal platform that we can handle _CST notification. */ /* Signal platform that we can handle _CST notification. */
if (!cpu_cx_generic && cpu_cst_cnt != 0) { if (!cpu_cx_generic && cpu_cst_cnt != 0) {
ACPI_LOCK(acpi); ACPI_LOCK(acpi);
AcpiOsWritePort(cpu_smi_cmd, cpu_cst_cnt, 8); AcpiOsWritePort(cpu_smi_cmd, cpu_cst_cnt, 8);
ACPI_UNLOCK(acpi); ACPI_UNLOCK(acpi);
} }
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