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ACPICA: Allow processor to be declared with the Device() instead of Processor()

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Allow processor to be declered with the Device(), such as:
Device(CPU1234) {
	Name(_HID, "ACPI007")
	Name(_UID, 1234)
}

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Starikovskiy 2007-02-02 19:48:23 +03:00 committed by Len Brown
parent f18c5a08bf
commit 11bf04c44f
2 changed files with 33 additions and 22 deletions
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53
drivers/acpi/processor_core.c
View file

@ -377,7 +377,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device)
/* Use the acpiid in MADT to map cpus in case of SMP */
#ifndef CONFIG_SMP
#define convert_acpiid_to_cpu(acpi_id) (-1)
static int get_cpu_id(acpi_handle handle, u32 acpi_id) {return -1;}
#else
static struct acpi_table_madt *madt;
@ -483,7 +483,7 @@ static int map_mat_entry(acpi_handle handle, u32 acpi_id)
return apic_id;
}
static int get_apic_id(acpi_handle handle, u32 acpi_id)
static int get_cpu_id(acpi_handle handle, u32 acpi_id)
{
int i;
int apic_id = -1;
@ -506,7 +506,7 @@ static int get_apic_id(acpi_handle handle, u32 acpi_id)
Driver Interface
-------------------------------------------------------------------------- */
static int acpi_processor_get_info(struct acpi_processor *pr)
static int acpi_processor_get_info(struct acpi_processor *pr, unsigned has_uid)
{
acpi_status status = 0;
union acpi_object object = { 0 };
@ -535,24 +535,35 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No bus mastering arbitration control\n"));
/*
* Evalute the processor object. Note that it is common on SMP to
* have the first (boot) processor with a valid PBLK address while
* all others have a NULL address.
*/
status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Evaluating processor object\n");
return -ENODEV;
/* Check if it is a Device with HID and UID */
if (has_uid) {
unsigned long value;
status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
NULL, &value);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Evaluating processor _UID\n");
return -ENODEV;
}
pr->acpi_id = value;
} else {
/*
* Evalute the processor object. Note that it is common on SMP to
* have the first (boot) processor with a valid PBLK address while
* all others have a NULL address.
*/
status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Evaluating processor object\n");
return -ENODEV;
}
/*
* TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
* >>> 'acpi_get_processor_id(acpi_id, &id)' in arch/xxx/acpi.c
*/
pr->acpi_id = object.processor.proc_id;
}
/*
* TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
* >>> 'acpi_get_processor_id(acpi_id, &id)' in arch/xxx/acpi.c
*/
pr->acpi_id = object.processor.proc_id;
cpu_index = get_apic_id(pr->handle, pr->acpi_id);
cpu_index = get_cpu_id(pr->handle, pr->acpi_id);
/* Handle UP system running SMP kernel, with no LAPIC in MADT */
if (!cpu0_initialized && (cpu_index == -1) &&
@ -621,7 +632,7 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
pr = acpi_driver_data(device);
result = acpi_processor_get_info(pr);
result = acpi_processor_get_info(pr, device->flags.unique_id);
if (result) {
/* Processor is physically not present */
return 0;

2
include/acpi/acpi_drivers.h
View file

@ -37,7 +37,7 @@
/* _HID definitions */
#define ACPI_POWER_HID "ACPI_PWR"
#define ACPI_PROCESSOR_HID "ACPI_CPU"
#define ACPI_PROCESSOR_HID "ACPI0007"
#define ACPI_SYSTEM_HID "ACPI_SYS"
#define ACPI_THERMAL_HID "ACPI_THM"
#define ACPI_BUTTON_HID_POWERF "ACPI_FPB"