Author: imp
Date: Mon Dec 16 21:34:57 2019
New Revision: 355823
URL: https://svnweb.freebsd.org/changeset/base/355823
Log:
Add slot number ivar to return which slot number the child is attached to.
This will always be 0 for pccbb, but may be non-zero for other kinds of
bridges,
should they show up in the tree. Make querying it generic.
Modified:
head/sys/dev/exca/excavar.h
head/sys/dev/pccbb/pccbb.c
Modified: head/sys/dev/exca/excavar.h
==============================================================================
--- head/sys/dev/exca/excavar.h Mon Dec 16 21:34:51 2019 (r355822)
+++ head/sys/dev/exca/excavar.h Mon Dec 16 21:34:57 2019 (r355823)
@@ -151,4 +151,17 @@ exca_clrb(struct exca_softc *sc, int reg, uint8_t mask
exca_putb(sc, reg, exca_getb(sc, reg) & ~mask);
}
+enum {
+ EXCA_IVAR_SLOT = 100,
+};
+
+#define EXCA_ACCESSOR(A, B, T) \
+static inline int \
+exca_get_ ## A(device_t dev, T *t) \
+{ \
+ return BUS_READ_IVAR(device_get_parent(dev), dev, \
+ EXCA_IVAR_ ## B, (uintptr_t *) t); \
+}
+
+EXCA_ACCESSOR(slot, SLOT, uint32_t)
#endif /* !_SYS_DEV_EXCA_EXCAVAR_H */
Modified: head/sys/dev/pccbb/pccbb.c
==============================================================================
--- head/sys/dev/pccbb/pccbb.c Mon Dec 16 21:34:51 2019 (r355822)
+++ head/sys/dev/pccbb/pccbb.c Mon Dec 16 21:34:57 2019 (r355823)
@@ -1565,6 +1565,9 @@ cbb_read_ivar(device_t brdev, device_t child, int whic
case PCIB_IVAR_BUS:
*result = sc->bus.sec;
return (0);
+ case EXCA_IVAR_SLOT:
+ *result = 0;
+ return (0);
}
return (ENOENT);
}
@@ -1577,6 +1580,8 @@ cbb_write_ivar(device_t brdev, device_t child, int whi
case PCIB_IVAR_DOMAIN:
return (EINVAL);
case PCIB_IVAR_BUS:
+ return (EINVAL);
+ case EXCA_IVAR_SLOT:
return (EINVAL);
}
return (ENOENT);
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