Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/821
-gerrit
commit 5a56dc038f16242e624c493bffeb0d9b38b85cad Author: Stefan Reinauer reinauer@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@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,