Introduce a new method 'get_count' in the UCLASS_CPU ops to get the number of CPUs in the system.
Signed-off-by: Bin Meng <[email protected]> --- Changes in v3: - Drop patches already applied and rebase on u-boot-x86/master - New patch to add a new get_count method to cpu uclass Changes in v2: None drivers/cpu/cpu-uclass.c | 10 ++++++++++ include/cpu.h | 18 ++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/drivers/cpu/cpu-uclass.c b/drivers/cpu/cpu-uclass.c index d6be9d4..8efb17c 100644 --- a/drivers/cpu/cpu-uclass.c +++ b/drivers/cpu/cpu-uclass.c @@ -32,6 +32,16 @@ int cpu_get_info(struct udevice *dev, struct cpu_info *info) return ops->get_info(dev, info); } +int cpu_get_count(struct udevice *dev, int *count) +{ + struct cpu_ops *ops = cpu_get_ops(dev); + + if (!ops->get_count) + return -ENOSYS; + + return ops->get_count(dev, count); +} + U_BOOT_DRIVER(cpu_bus) = { .name = "cpu_bus", .id = UCLASS_SIMPLE_BUS, diff --git a/include/cpu.h b/include/cpu.h index 34c60bc..6fd735d 100644 --- a/include/cpu.h +++ b/include/cpu.h @@ -58,6 +58,15 @@ struct cpu_ops { * @return 0 if OK, -ve on error */ int (*get_info)(struct udevice *dev, struct cpu_info *info); + + /** + * get_count() - Get number of CPUs + * + * @dev: Device to check (UCLASS_CPU) + * @count: Returns CPU count + * @return 0 if OK, -ve on error + */ + int (*get_count)(struct udevice *dev, int *count); }; #define cpu_get_ops(dev) ((struct cpu_ops *)(dev)->driver->ops) @@ -81,4 +90,13 @@ int cpu_get_desc(struct udevice *dev, char *buf, int size); */ int cpu_get_info(struct udevice *dev, struct cpu_info *info); +/** + * cpu_get_count() - Get number of CPUs + * + * @dev: Device to check (UCLASS_CPU) + * @count: Returns CPU count + * @return 0 if OK, -ve on error + */ +int cpu_get_count(struct udevice *dev, int *count); + #endif -- 1.8.2.1 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
