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firmware: arm_scmi: Add SCMI v3.1 perf power-cost in microwatts 

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>
This commit is contained in:
Cristian Marussi 2022-03-30 16:05:50 +01:00 committed by Sudeep Holla
parent 79d2ea9244
commit 3630cd8130
1 changed files with 4 additions and 0 deletions
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4
drivers/firmware/arm_scmi/perf.c
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@ -45,6 +45,7 @@ struct scmi_msg_resp_perf_attributes {
__le16 num_domains;
__le16 flags;
#define POWER_SCALE_IN_MILLIWATT(x) ((x) & BIT(0))
#define POWER_SCALE_IN_MICROWATT(x) ((x) & BIT(1))
__le32 stats_addr_low;
__le32 stats_addr_high;
__le32 stats_size;
@ -170,6 +171,7 @@ struct scmi_perf_info {
u32 version;
int num_domains;
bool power_scale_mw;
bool power_scale_uw;
u64 stats_addr;
u32 stats_size;
struct perf_dom_info *dom_info;
@ -200,6 +202,8 @@ static int scmi_perf_attributes_get(const struct scmi_protocol_handle *ph,
pi->num_domains = le16_to_cpu(attr->num_domains);
pi->power_scale_mw = POWER_SCALE_IN_MILLIWATT(flags);
if (PROTOCOL_REV_MAJOR(pi->version) >= 0x3)
pi->power_scale_uw = POWER_SCALE_IN_MICROWATT(flags);
pi->stats_addr = le32_to_cpu(attr->stats_addr_low) |
(u64)le32_to_cpu(attr->stats_addr_high) << 32;
pi->stats_size = le32_to_cpu(attr->stats_size);