17 constexpr auto PCAP_INTERFACE = "xyz.openbmc_project.Control.Power.Cap";
39 // Saves the power cap data in the filesystem.
65 // Loads the power cap data from the filesystem
106     // Build the hwmon string to write the power cap bounds  in updatePcapBounds()
116     // Read the power cap bounds from sysfs files (from OCC)  in updatePcapBounds()
117     uint64_t cap;  in updatePcapBounds()  local
122         softMinFile >> cap;  in updatePcapBounds()
125         capSoftMin = ((cap / (PS_DERATING_FACTOR / 100.0) / 1000000) + 0.9);  in updatePcapBounds()
138         minFile >> cap;  in updatePcapBounds()
141         capHardMin = ((cap / (PS_DERATING_FACTOR / 100.0) / 1000000) + 0.9);  in updatePcapBounds()
154         maxFile >> cap;  in updatePcapBounds()
157         capMax = cap / (PS_DERATING_FACTOR / 100.0) / 1000000;  in updatePcapBounds()
169         // Save the power cap bounds to dbus  in updatePcapBounds()
174     // Validate user power cap (if enabled) is within the bounds  in updatePcapBounds()
185                 // User power cap is enabled, but does not match dbus  in updatePcapBounds()
195             // User power cap is outside of current bounds  in updatePcapBounds()
202                 "updatePcapBounds: user powercap {CAP}W is outside bounds "  in updatePcapBounds()
204                 "CAP", dbusUserCap, "SMIN", capSoftMin, "MIN", capHardMin,  in updatePcapBounds()
226 // Get value of power cap to send to the OCC (output/DC power)
298         lg2::error("Power Cap base filename not found: {FILE}", "FILE",  in getPcapFilename()
306 // Write the user power cap to sysfs (output/DC power)
307 // This will trigger the driver to send the cap to the OCC
316     // Build the hwmon string to write the user power cap  in writeOcc()
320         lg2::error("Could not find a power cap file to write to: {FILE})",  in writeOcc()
329     // Open the hwmon file and write the power cap  in writeOcc()
333         lg2::info("Writing {CAP}uW to {FILE}", "CAP", pcapString, "FILE",  in writeOcc()
340         lg2::error("Failed writing {CAP}uW to {FILE} (errno={ERR})", "CAP",  in writeOcc()
347 // Read the current user power cap from sysfs as input/AC power
352     // Get the sysfs filename for the user power cap  in readUserCapHwmon()
357             "readUserCapHwmon: Could not find a power cap file to read: {FILE})",  in readUserCapHwmon()
362     // Open the sysfs file and read the power cap  in readUserCapHwmon()
366         uint64_t cap;  in readUserCapHwmon()  local
367         file >> cap;  in readUserCapHwmon()
370         userCap = (cap / (PS_DERATING_FACTOR / 100.0) / 1000000);  in readUserCapHwmon()
415                 "pcapChanged: Unknown power cap property changed {PROP} to {VAL}",  in pcapChanged()
420     // Validate the cap is within supported range  in pcapChanged()
426 …"pcapChanged: Power cap of {CAP}W is lower than allowed (soft min:{SMIN}, min:{MIN}) - using soft …  in pcapChanged()
427             "CAP", pcap, "SMIN", capSoftMin, "MIN", capHardMin);  in pcapChanged()
434             "pcapChanged: Power cap of {CAP}W is higher than allowed (max:{MAX}) - using max",  in pcapChanged()
435             "CAP", pcap, "MAX", capMax);  in pcapChanged()
443             "Power Cap Property Change (cap={CAP}W (input), enabled={ENABLE})",  in pcapChanged()
444             "CAP", pcap, "ENABLE", pcapEnabled);  in pcapChanged()
455 // Update the Power Cap bounds on DBus