diff options
| -rw-r--r-- | drivers/firmware/arm_scmi/perf.c | 28 | ||||
| -rw-r--r-- | include/linux/scmi_protocol.h | 4 |
2 files changed, 32 insertions, 0 deletions
diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c index 87c99d296ecd..3c8ae7cc35de 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -427,6 +427,33 @@ static int scmi_dvfs_freq_get(const struct scmi_handle *handle, u32 domain, return ret; } +static int scmi_dvfs_est_power_get(const struct scmi_handle *handle, u32 domain, + unsigned long *freq, unsigned long *power) +{ + struct scmi_perf_info *pi = handle->perf_priv; + struct perf_dom_info *dom; + unsigned long opp_freq; + int idx, ret = -EINVAL; + struct scmi_opp *opp; + + dom = pi->dom_info + domain; + if (!dom) + return -EIO; + + for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) { + opp_freq = opp->perf * dom->mult_factor; + if (opp_freq < *freq) + continue; + + *freq = opp_freq; + *power = opp->power; + ret = 0; + break; + } + + return ret; +} + static struct scmi_perf_ops perf_ops = { .limits_set = scmi_perf_limits_set, .limits_get = scmi_perf_limits_get, @@ -437,6 +464,7 @@ static struct scmi_perf_ops perf_ops = { .device_opps_add = scmi_dvfs_device_opps_add, .freq_set = scmi_dvfs_freq_set, .freq_get = scmi_dvfs_freq_get, + .est_power_get = scmi_dvfs_est_power_get, }; static int scmi_perf_protocol_init(struct scmi_handle *handle) diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index f4c9fc0fc755..3105055c00a7 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -91,6 +91,8 @@ struct scmi_clk_ops { * to sustained performance level mapping * @freq_get: gets the frequency for a given device using sustained frequency * to sustained performance level mapping + * @est_power_get: gets the estimated power cost for a given performance domain + * at a given frequency */ struct scmi_perf_ops { int (*limits_set)(const struct scmi_handle *handle, u32 domain, @@ -110,6 +112,8 @@ struct scmi_perf_ops { unsigned long rate, bool poll); int (*freq_get)(const struct scmi_handle *handle, u32 domain, unsigned long *rate, bool poll); + int (*est_power_get)(const struct scmi_handle *handle, u32 domain, + unsigned long *rate, unsigned long *power); }; /** |