diff options
Diffstat (limited to 'include/linux/scmi_protocol.h')
| -rw-r--r-- | include/linux/scmi_protocol.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index 464086b9d8c5..57d4b1c099e5 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -33,15 +33,57 @@ struct scmi_revision_info { char sub_vendor_id[SCMI_MAX_STR_SIZE]; }; +struct scmi_handle; + +/** + * struct scmi_perf_ops - represents the various operations provided + * by SCMI Performance Protocol + * + * @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 + * @level_get: gets the performance level of a domain + * @device_domain_id: gets the scmi domain id for a given device + * @get_transition_latency: gets the DVFS transition latency for a given device + * @add_opps_to_device: adds all the OPPs for a given device + * @freq_set: sets the frequency for a given device using sustained frequency + * to sustained performance level mapping + * @freq_get: gets the frequency for a given device using sustained frequency + * to sustained performance level mapping + */ +struct scmi_perf_ops { + int (*limits_set)(const struct scmi_handle *handle, u32 domain, + u32 max_perf, u32 min_perf); + int (*limits_get)(const struct scmi_handle *handle, u32 domain, + u32 *max_perf, u32 *min_perf); + int (*level_set)(const struct scmi_handle *handle, u32 domain, + u32 level); + int (*level_get)(const struct scmi_handle *handle, u32 domain, + u32 *level); + int (*device_domain_id)(struct device *dev); + int (*get_transition_latency)(const struct scmi_handle *handle, + struct device *dev); + int (*add_opps_to_device)(const struct scmi_handle *handle, + struct device *dev); + int (*freq_set)(const struct scmi_handle *handle, u32 domain, + unsigned long rate); + int (*freq_get)(const struct scmi_handle *handle, u32 domain, + unsigned long *rate); +}; + /** * struct scmi_handle - Handle returned to ARM SCMI clients for usage. * * @dev: pointer to the SCMI device * @version: pointer to the structure containing SCMI version information + * @perf_ops: pointer to set of performance protocol operations */ struct scmi_handle { struct device *dev; struct scmi_revision_info *version; + struct scmi_perf_ops *perf_ops; + /* for protocol internal use */ + void *perf_priv; }; enum scmi_std_protocol { |