From: Ulf Hansson Date: Fri, 25 Aug 2023 11:26:21 +0000 (+0200) Subject: firmware: arm_scmi: Extend perf protocol ops to get number of domains X-Git-Tag: v6.6.7~143 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9c78a21a5a528af4e0167c9dfa5d10ba41515328;p=platform%2Fkernel%2Flinux-starfive.git firmware: arm_scmi: Extend perf protocol ops to get number of domains [ Upstream commit e9090e70e618cd62ab7bf2914511e5eea31a2535 ] Similar to other protocol ops, it's useful for an scmi module driver to get the number of supported performance domains, hence let's make this available by adding a new perf protocol callback. Note that, a user is being added from subsequent changes. Signed-off-by: Ulf Hansson Link: https://lore.kernel.org/r/20230825112633.236607-2-ulf.hansson@linaro.org Signed-off-by: Sudeep Holla Stable-dep-of: 8e3c98d9187e ("firmware: arm_scmi: Fix frequency truncation by promoting multiplier type") Signed-off-by: Sasha Levin --- diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c index 30dedd6..da901c6 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -423,6 +423,13 @@ scmi_perf_describe_levels_get(const struct scmi_protocol_handle *ph, return ret; } +static int scmi_perf_num_domains_get(const struct scmi_protocol_handle *ph) +{ + struct scmi_perf_info *pi = ph->get_priv(ph); + + return pi->num_domains; +} + static int scmi_perf_msg_limits_set(const struct scmi_protocol_handle *ph, u32 domain, u32 max_perf, u32 min_perf) { @@ -948,6 +955,7 @@ scmi_power_scale_get(const struct scmi_protocol_handle *ph) } static const struct scmi_perf_proto_ops perf_proto_ops = { + .num_domains_get = scmi_perf_num_domains_get, .limits_set = scmi_perf_limits_set, .limits_get = scmi_perf_limits_get, .level_set = scmi_perf_level_set, diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index e6fe4f7..71b39cb 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -101,6 +101,7 @@ struct scmi_clk_proto_ops { * struct scmi_perf_proto_ops - represents the various operations provided * by SCMI Performance Protocol * + * @num_domains_get: gets the number of supported performance domains * @limits_set: sets limits on the performance level of a domain * @limits_get: gets limits on the performance level of a domain * @level_set: sets the performance level of a domain @@ -120,6 +121,7 @@ struct scmi_clk_proto_ops { * or in some other (abstract) scale */ struct scmi_perf_proto_ops { + int (*num_domains_get)(const struct scmi_protocol_handle *ph); int (*limits_set)(const struct scmi_protocol_handle *ph, u32 domain, u32 max_perf, u32 min_perf); int (*limits_get)(const struct scmi_protocol_handle *ph, u32 domain,