[coreboot] New patch to review for coreboot: ea119cc Add a helper function to determine the number of enabled CPUs

[Stefan Reinauer (stefan.reinauer@coreboot.org)]

Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/821

-gerrit

commit ea119ccdfd79f8373abf1b0b2717718e5d97d05d
Author: Stefan Reinauer <reinauer at chromium.org>
Date:   Fri Mar 30 13:52:58 2012 -0700

    Add a helper function to determine the number of enabled CPUs
    
    Change-Id: Ia72926002571e0f250849fa5db048bd8b2e92400
    Signed-off-by: Duncan Laurie <dlaurie at google.com>
---
 src/devices/device_util.c   |   18 ++++++++++++++++++
 src/include/device/device.h |    1 +
 2 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/src/devices/device_util.c b/src/devices/device_util.c
index 526490a..5225938 100644
--- a/src/devices/device_util.c
+++ b/src/devices/device_util.c
@@ -850,3 +850,21 @@ u32 find_pci_tolm(struct bus *bus)
 
 	return tolm;
 }
+
+/* Count of enabled CPUs */
+int dev_count_cpu(void)
+{
+	device_t cpu;
+	int count = 0;
+
+	for (cpu = all_devices; cpu; cpu = cpu->next) {
+		if ((cpu->path.type != DEVICE_PATH_APIC) ||
+		    (cpu->bus->dev->path.type != DEVICE_PATH_APIC_CLUSTER))
+			continue;
+		if (!cpu->enabled)
+			continue;
+		count++;
+	}
+
+	return count;
+}
diff --git a/src/include/device/device.h b/src/include/device/device.h
index c097f57..0aea1d6 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -133,6 +133,7 @@ device_t dev_find_class (unsigned int class, device_t from);
 device_t dev_find_slot (unsigned int bus, unsigned int devfn);
 device_t dev_find_slot_on_smbus (unsigned int bus, unsigned int addr);
 device_t dev_find_lapic(unsigned apic_id);
+int dev_count_cpu(void);
 
 /* Debug functions */
 void print_resource_tree(struct device * root, int debug_level,