From edcadca528154e21b25199c0df6f156471ead7a9 Mon Sep 17 00:00:00 2001 From: Hongbo Zhang Date: Tue, 13 Oct 2015 19:13:11 +0800 Subject: api: cpu: add new API to get per-CPU max frequency This patch adds new API odp_cpu_hz_max_id() to get the corresponding max frequency for each CPU indexed by CPU ID. Signed-off-by: Hongbo Zhang Reviewed-by: Petri Savolainen Signed-off-by: Maxim Uvarov --- include/odp/api/cpu.h | 11 +++++++++++ platform/linux-generic/odp_system_info.c | 10 +++++++++- 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/include/odp/api/cpu.h b/include/odp/api/cpu.h index ff63daa02..22b61e8bc 100644 --- a/include/odp/api/cpu.h +++ b/include/odp/api/cpu.h @@ -83,6 +83,17 @@ uint64_t odp_cpu_hz(void); */ uint64_t odp_cpu_hz_max(void); +/** + * Maximum CPU frequency of a CPU (in Hz) + * + * Returns maximum frequency of specified CPU + * + * @param id CPU ID + * + * @return CPU frequency in Hz + */ +uint64_t odp_cpu_hz_max_id(int id); + /** * Current CPU cycle count * diff --git a/platform/linux-generic/odp_system_info.c b/platform/linux-generic/odp_system_info.c index e105cab5e..e9c5898c7 100644 --- a/platform/linux-generic/odp_system_info.c +++ b/platform/linux-generic/odp_system_info.c @@ -379,7 +379,15 @@ uint64_t odp_cpu_hz(void) uint64_t odp_cpu_hz_max(void) { - return odp_global_data.system_info.cpu_hz[0]; + return odp_cpu_hz_max_id(0); +} + +uint64_t odp_cpu_hz_max_id(int id) +{ + if (id >= 0 && id < MAX_CPU_NUMBER) + return odp_global_data.system_info.cpu_hz[id]; + else + return -1; } uint64_t odp_sys_huge_page_size(void) -- cgit v1.2.3