Linux kernel development work - see feature branches https://git.zx2c4.com/linux-dev/atom/drivers/firmware/arm_scmi/perf.c?h=linus%2Fmaster 2022-04-28T17:22:53Z 2022-04-28T17:22:53Z Cristian Marussi cristian.marussi@arm.com 2022-03-30T15:05:51Z urn:sha1:71bea05797b55d43c3cee8e2ee279ab510e0563c Starting with SCMI v3.1, the PERFORMANCE_LIMITS_SET command allows a user to request only one between max and min ranges to be changed, while leaving the other untouched if set to zero in the request. Anyway SCMI v3.1 states also explicitly that you cannot leave both of those unchanged (zeroed) when issuing such command, so add a proper check for this condition. Link: https://lore.kernel.org/r/20220330150551.2573938-23-cristian.marussi@arm.com Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> [sudeep.holla: Dropped check for v3.0 and above to make the check unconditional, updated the subject accordingly] Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2022-04-28T17:22:53Z Cristian Marussi cristian.marussi@arm.com 2022-03-30T15:05:50Z urn:sha1:3630cd8130ce0b2a607db09a1995e5bf99053ae1 Add SCMI v3.1 internal support for parsing message attributes reporting the capability of a performance domain to report power-cost in microwatts. Link: https://lore.kernel.org/r/20220330150551.2573938-22-cristian.marussi@arm.com Cc: Lukasz Luba <lukasz.luba@arm.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2022-04-28T17:22:53Z Cristian Marussi cristian.marussi@arm.com 2022-03-30T15:05:47Z urn:sha1:79d2ea9244180bf76537c23406d838db955a57b5 Make SCMI perf protocol use the common iterator protocol helpers for issuing the multi-part commands. Link: https://lore.kernel.org/r/20220330150551.2573938-19-cristian.marussi@arm.com Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2022-04-28T17:22:52Z Cristian Marussi cristian.marussi@arm.com 2022-03-30T15:05:40Z urn:sha1:b260fccaebdc2c838e62aaef24fedf497f181d10 Using the common protocol helper implementation add support for all new SCMIv3.1 extended names commands related to all protocols with the exception of SENSOR_AXIS_GET_NAME. Link: https://lore.kernel.org/r/20220330150551.2573938-12-cristian.marussi@arm.com Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2022-04-28T17:22:51Z Cristian Marussi cristian.marussi@arm.com 2022-03-30T15:05:38Z urn:sha1:23136bff80a7edbe7b5df2b7c327d6584879930b Move some SCMI protocol specific definitions from common.h into a the new dedicated protocols.h header so that SCMI protocols core code can include only what it needs; this is going to be useful to avoid the risk of growing indefinitely the dimension of common.h, especially when introducing some common protocols helper functions. Header common.h will continue to be included by SCMI core and transport layers. Link: https://lore.kernel.org/r/20220330150551.2573938-10-cristian.marussi@arm.com Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2022-04-28T09:47:19Z Cristian Marussi cristian.marussi@arm.com 2022-03-30T15:05:31Z urn:sha1:4de1b36fae866c02f264f6bcda7a9a9e00ec5306 Bail out of protocol initialisation routine early when basic information about protocol version and attributes could not be retrieved. Failing to act this way can lead to a successfully initialized SCMI protocol which is in fact not fully functional. Link: https://lore.kernel.org/r/20220330150551.2573938-3-cristian.marussi@arm.com Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2021-03-30T15:35:16Z Cristian Marussi cristian.marussi@arm.com 2021-03-16T12:49:02Z urn:sha1:f5800e0bf6f9b7ff7dfa4db8b0681bd062eb16a4 Extend SCMI protocols accounting mechanism to address possible module usage and add the support to possibly define new protocols as loadable modules. Keep the standard protocols built into the SCMI core. Link: https://lore.kernel.org/r/20210316124903.35011-38-cristian.marussi@arm.com Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2021-03-30T15:35:15Z Cristian Marussi cristian.marussi@arm.com 2021-03-16T12:48:59Z urn:sha1:3cb8c95f4b3055691db500ae7ab545074a771808 Remove all the events registration code used to ease the transition to the new interface based on protocol handles. Link: https://lore.kernel.org/r/20210316124903.35011-35-cristian.marussi@arm.com Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2021-03-29T09:00:35Z Cristian Marussi cristian.marussi@arm.com 2021-03-16T12:48:38Z urn:sha1:f58315a49ce98007870e1206ca5d79fee09cf36e Now that all the SCMI driver users have been migrated to the new interface remove the legacy interface and all the transient code. Link: https://lore.kernel.org/r/20210316124903.35011-14-cristian.marussi@arm.com Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> 2021-03-29T09:00:35Z Cristian Marussi cristian.marussi@arm.com 2021-03-16T12:48:36Z urn:sha1:1fec5e6b5233a08ebf43011703b8baf9c9856862 Convert internals of protocol implementation to use protocol handles and expose a new protocol operations interface for SCMI driver using the new get/put common operations, while keeping the old handle->perf_ops still around to ease transition. Remove handle->perf_priv now unused. Link: https://lore.kernel.org/r/20210316124903.35011-12-cristian.marussi@arm.com Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>