diff options
| author | Nate Lawson <njl@FreeBSD.org> | 2007-06-03 00:40:56 +0000 |
|---|---|---|
| committer | Nate Lawson <njl@FreeBSD.org> | 2007-06-03 00:40:56 +0000 |
| commit | 3331373ce7338fbb7b8930814635c539ad2b0d4f (patch) | |
| tree | f81939e5fc00d06f5dc96830f602699549b315aa /sys/dev/acpica | |
| parent | 514e149910e2ddfb5d1c1bbbb6f1f8aaa4dc622a (diff) | |
Notes
Diffstat (limited to 'sys/dev/acpica')
| -rw-r--r-- | sys/dev/acpica/acpi_cpu.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/sys/dev/acpica/acpi_cpu.c b/sys/dev/acpica/acpi_cpu.c index a3a4a98bba7a..b9a89d390ed8 100644 --- a/sys/dev/acpica/acpi_cpu.c +++ b/sys/dev/acpica/acpi_cpu.c @@ -136,6 +136,8 @@ ACPI_SERIAL_DECL(cpu, "ACPI CPU"); static int acpi_cpu_probe(device_t dev); static int acpi_cpu_attach(device_t dev); +static int acpi_cpu_suspend(device_t dev); +static int acpi_cpu_resume(device_t dev); static int acpi_pcpu_get_id(uint32_t idx, uint32_t *acpi_id, uint32_t *cpu_id); static struct resource_list *acpi_cpu_get_rlist(device_t dev, device_t child); @@ -153,6 +155,7 @@ static void acpi_cpu_idle(void); static void acpi_cpu_notify(ACPI_HANDLE h, UINT32 notify, void *context); static int acpi_cpu_quirks(void); static int acpi_cpu_usage_sysctl(SYSCTL_HANDLER_ARGS); +static int acpi_cpu_set_cx_lowest(struct acpi_cpu_softc *sc, int val); static int acpi_cpu_cx_lowest_sysctl(SYSCTL_HANDLER_ARGS); static int acpi_cpu_global_cx_lowest_sysctl(SYSCTL_HANDLER_ARGS); @@ -162,8 +165,8 @@ static device_method_t acpi_cpu_methods[] = { DEVMETHOD(device_attach, acpi_cpu_attach), DEVMETHOD(device_detach, bus_generic_detach), DEVMETHOD(device_shutdown, acpi_cpu_shutdown), - DEVMETHOD(device_suspend, bus_generic_suspend), - DEVMETHOD(device_resume, bus_generic_resume), + DEVMETHOD(device_suspend, acpi_cpu_suspend), + DEVMETHOD(device_resume, acpi_cpu_resume), /* Bus interface */ DEVMETHOD(bus_add_child, acpi_cpu_add_child), @@ -357,6 +360,30 @@ acpi_cpu_attach(device_t dev) } /* + * Disable any entry to the idle function during suspend and re-enable it + * during resume. + */ +static int +acpi_cpu_suspend(device_t dev) +{ + int error; + + error = bus_generic_suspend(dev); + if (error) + return (error); + cpu_disable_idle = TRUE; + return (0); +} + +static int +acpi_cpu_resume(device_t dev) +{ + + cpu_disable_idle = FALSE; + return (bus_generic_resume(dev)); +} + +/* * Find the nth present CPU and return its pc_cpuid as well as set the * pc_acpi_id from the most reliable source. */ |