Author: eadler
Date: Thu Mar 1 05:54:39 2018
New Revision: 330177
URL: https://svnweb.freebsd.org/changeset/base/330177
Log:
MFC r313417:
[iwm] Very basic DTS thermal sensor support (prints temp as debug msg).
* Adds IWM_DEBUG_TEMP debug message type, for printing messages related
to temperature sensors and thermal/TDP infos.
* The firmware regularly sends us DTS measurement notifications, so just
print the temperature value as a debugging message.
(Adrian's addition):
* Eventually this can be used by the driver to limit transmit rate / power to
try and do some thermal throttling.
Modified:
stable/11/sys/dev/iwm/if_iwm.c
stable/11/sys/dev/iwm/if_iwm_debug.h
stable/11/sys/dev/iwm/if_iwmreg.h
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/dev/iwm/if_iwm.c
==============================================================================
--- stable/11/sys/dev/iwm/if_iwm.c Thu Mar 1 05:53:55 2018
(r330176)
+++ stable/11/sys/dev/iwm/if_iwm.c Thu Mar 1 05:54:39 2018
(r330177)
@@ -5425,8 +5425,20 @@ iwm_notif_intr(struct iwm_softc *sc)
notif->source_id, sc->sc_fw_mcc);
break; }
- case IWM_DTS_MEASUREMENT_NOTIFICATION:
+ case IWM_DTS_MEASUREMENT_NOTIFICATION: {
+ struct iwm_dts_measurement_notif_v1 *notif;
+
+ if (iwm_rx_packet_payload_len(pkt) < sizeof(*notif)) {
+ device_printf(sc->sc_dev,
+ "Invalid DTS_MEASUREMENT_NOTIFICATION\n");
+ break;
+ }
+ notif = (void *)pkt->data;
+ IWM_DPRINTF(sc, IWM_DEBUG_TEMP,
+ "IWM_DTS_MEASUREMENT_NOTIFICATION - %d\n",
+ notif->temp);
break;
+ }
case IWM_PHY_CONFIGURATION_CMD:
case IWM_TX_ANT_CONFIGURATION_CMD:
Modified: stable/11/sys/dev/iwm/if_iwm_debug.h
==============================================================================
--- stable/11/sys/dev/iwm/if_iwm_debug.h Thu Mar 1 05:53:55 2018
(r330176)
+++ stable/11/sys/dev/iwm/if_iwm_debug.h Thu Mar 1 05:54:39 2018
(r330177)
@@ -41,6 +41,7 @@ enum {
IWM_DEBUG_FIRMWARE_TLV = 0x00020000, /* Firmware TLV parsing */
IWM_DEBUG_TRANS = 0x00040000, /* Transport layer (eg PCIe) */
IWM_DEBUG_EEPROM = 0x00080000, /* EEPROM/channel information */
+ IWM_DEBUG_TEMP = 0x00100000, /* Thermal Sensor handling */
IWM_DEBUG_REGISTER = 0x20000000, /* print chipset register */
IWM_DEBUG_TRACE = 0x40000000, /* Print begin and start driver
function */
IWM_DEBUG_FATAL = 0x80000000, /* fatal errors */
Modified: stable/11/sys/dev/iwm/if_iwmreg.h
==============================================================================
--- stable/11/sys/dev/iwm/if_iwmreg.h Thu Mar 1 05:53:55 2018
(r330176)
+++ stable/11/sys/dev/iwm/if_iwmreg.h Thu Mar 1 05:54:39 2018
(r330177)
@@ -5978,6 +5978,30 @@ enum iwm_mcc_source {
IWM_MCC_SOURCE_GETTING_MCC_TEST_MODE = 0x11,
};
+/**
+ * struct iwm_dts_measurement_notif_v1 - measurements notification
+ *
+ * @temp: the measured temperature
+ * @voltage: the measured voltage
+ */
+struct iwm_dts_measurement_notif_v1 {
+ int32_t temp;
+ int32_t voltage;
+} __packed; /* TEMPERATURE_MEASUREMENT_TRIGGER_NTFY_S_VER_1*/
+
+/**
+ * struct iwm_dts_measurement_notif_v2 - measurements notification
+ *
+ * @temp: the measured temperature
+ * @voltage: the measured voltage
+ * @threshold_idx: the trip index that was crossed
+ */
+struct iwm_dts_measurement_notif_v2 {
+ int32_t temp;
+ int32_t voltage;
+ int32_t threshold_idx;
+} __packed; /* TEMPERATURE_MEASUREMENT_TRIGGER_NTFY_S_VER_2 */
+
/*
* Some cherry-picked definitions
*/
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