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legacy cpu: Add proper device_probe and device_attach routines

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Set a device description in probe and handle both adding and attaching
children in attach.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D47185
This commit is contained in:
John Baldwin 2024-10-21 10:24:28 -04:00
parent ce968b095e
commit ab4f969f8d
1 changed files with 19 additions and 2 deletions
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21
sys/x86/x86/legacy.c
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@ -267,6 +267,8 @@ legacy_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
* cpufreq(4) hang off this.
*/
static void cpu_identify(driver_t *driver, device_t parent);
static device_probe_t cpu_probe;
static device_attach_t cpu_attach;
static int cpu_read_ivar(device_t dev, device_t child, int index,
uintptr_t *result);
static device_t cpu_add_child(device_t bus, u_int order, const char *name,
@ -281,8 +283,8 @@ struct cpu_device {
static device_method_t cpu_methods[] = {
/* Device interface */
DEVMETHOD(device_identify, cpu_identify),
DEVMETHOD(device_probe, bus_generic_probe),
DEVMETHOD(device_attach, bus_generic_attach),
DEVMETHOD(device_probe, cpu_probe),
DEVMETHOD(device_attach, cpu_attach),
DEVMETHOD(device_detach, bus_generic_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
@ -330,6 +332,21 @@ cpu_identify(driver_t *driver, device_t parent)
}
}
static int
cpu_probe(device_t dev)
{
device_set_desc(dev, "legacy CPU");
return (BUS_PROBE_DEFAULT);
}
static int
cpu_attach(device_t dev)
{
bus_generic_probe(dev);
bus_generic_attach(dev);
return (0);
}
static device_t
cpu_add_child(device_t bus, u_int order, const char *name, int unit)
{