date and time created 81/02/19 21:34:20 by wnj

SCCS-vsn: sys/vax/vax/nexus.h 4.1

diff --git a/usr/src/sys/vax/vax/nexus.h b/usr/src/sys/vax/vax/nexus.h
new file mode 100644 (file)
index 0000000..9e0074a
--- /dev/null
+++ b/usr/src/sys/vax/vax/nexus.h
@@ -0,0 +1,64 @@
+/*     nexus.h 4.1     %G%     */
+
+/*
+ * Information about nexus's.
+ */
+#if VAX780
+#define        NNEX780 16
+#define        NEX780  ((struct nexus *)0x20000000)
+#endif
+#if VAX750
+#define        NNEX750 4
+#define        NEX750  ((struct nexus *)0xf28000)
+#endif
+#define        NEXSIZE 0x2000
+
+struct nexus {
+       union nexcsr {
+               long    nex_csr;
+               u_char  nex_type;
+       } nexcsr;
+       long    nex_pad[NEXSIZE / sizeof (long) - 1];
+};
+#ifdef KERNEL
+extern struct nexus nexus[16];
+#endif
+
+/*
+ * Bits in high word of nexus's.
+ */
+#define        SBI_PARFLT      (1<<31)         /* sbi parity fault */
+#define        SBI_WSQFLT      (1<<30)         /* write sequence fault */
+#define        SBI_UIDFLT      (1<<29)         /* unexpected read data fault */
+#define        SBI_ISQFLT      (1<<28)         /* interlock sequence fault */
+#define        SBI_MXTFLT      (1<<27)         /* multiple transmitter fault */
+#define        SBI_XMTFLT      (1<<26)         /* transmit fault */
+
+#define        NEX_CFGFLT      (0xfc000000)
+
+#define        NEX_APD         (1<<23)         /* adaptor power down */
+#define        NEX_APU         (1<<22)         /* adaptor power up */
+
+#define        MBA_OT          (1<<21)         /* overtemperature */
+
+#define        UBA_UBINIT      (1<<18)         /* unibus init */
+#define        UBA_UBPDN       (1<<17)         /* unibus power down */
+#define        UBA_UBIC        (1<<16)         /* unibus initialization complete */
+
+/*
+ * Types for nex_type.
+ */
+#define        NEX_MEM4        0x08            /* 4K chips, non-interleaved mem */
+#define        NEX_MEM4I       0x09            /* 4K chips, interleaved mem */
+#define        NEX_MEM16       0x10            /* 16K chips, non-interleaved mem */
+#define        NEX_MEM16I      0x11            /* 16K chips, interleaved mem */
+#define        NEX_MBA         0x20            /* Massbus adaptor */
+#define        NEX_UBA0        0x28            /* Unibus adaptor */
+#define        NEX_UBA1        0x29            /* 4 flavours  for 4 addr spaces */
+#define        NEX_UBA2        0x2a
+#define        NEX_UBA3        0x2b
+#define        NEX_DR32        0x30            /* DR32 user i'face to SBI */
+#define        NEX_MPM0        0x40            /* Multi-port mem */
+#define        NEX_MPM1        0x41            /* Who knows why 4 different ones ? */
+#define        NEX_MPM2        0x42
+#define        NEX_MPM3        0x43