Author: andrew
Date: Wed Jun 13 12:32:04 2018
New Revision: 335055
URL: https://svnweb.freebsd.org/changeset/base/335055

Log:
  Find and cache the PSCI version on driver attach.
  
  Sponsored by: DARPA, AFRL

Modified:
  head/sys/dev/psci/psci.c

Modified: head/sys/dev/psci/psci.c
==============================================================================
--- head/sys/dev/psci/psci.c    Wed Jun 13 12:26:37 2018        (r335054)
+++ head/sys/dev/psci/psci.c    Wed Jun 13 12:32:04 2018        (r335055)
@@ -74,6 +74,7 @@ __FBSDID("$FreeBSD$");
 struct psci_softc {
        device_t        dev;
 
+       uint32_t        psci_version;
        uint32_t        psci_fnids[PSCI_FN_MAX];
 };
 
@@ -493,6 +494,7 @@ psci_v0_1_init(device_t dev)
                sc->psci_fnids[PSCI_FN_MIGRATE] = psci_fnid;
        }
 
+       sc->psci_version = (0 << 16) | 1;
        if (bootverbose)
                device_printf(dev, "PSCI version 0.1 available\n");
 
@@ -523,6 +525,7 @@ psci_v0_2_init(device_t dev)
        if (version == PSCI_RETVAL_NOT_SUPPORTED)
                return (1);
 
+       sc->psci_version = version;
        if ((PSCI_VER_MAJOR(version) == 0 && PSCI_VER_MINOR(version) == 2) ||
            PSCI_VER_MAJOR(version) == 1) {
                if (bootverbose)
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