[src/trunk]: src/sys/arch/vax/uba Add code to probe the Q-bus/Unibus for memo...

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/018ba4fd1787
branches:  trunk
changeset: 809352:018ba4fd1787
user:      matt <matt%NetBSD.org@localhost>
date:      Sun Jul 05 03:03:00 2015 +0000

description:
Add code to probe the Q-bus/Unibus for memory.  (From Charles Dickman)

diffstat:

 sys/arch/vax/uba/uba_mainbus.c |  45 ++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 43 insertions(+), 2 deletions(-)

diffs (80 lines):

diff -r fc5f4af27ed8 -r 018ba4fd1787 sys/arch/vax/uba/uba_mainbus.c
--- a/sys/arch/vax/uba/uba_mainbus.c    Sun Jul 05 02:10:53 2015 +0000
+++ b/sys/arch/vax/uba/uba_mainbus.c    Sun Jul 05 03:03:00 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uba_mainbus.c,v 1.10 2010/12/14 23:38:30 matt Exp $       */
+/*     $NetBSD: uba_mainbus.c,v 1.11 2015/07/05 03:03:00 matt Exp $       */
 /*
  * Copyright (c) 1982, 1986 The Regents of the University of California.
  * All rights reserved.
@@ -68,7 +68,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uba_mainbus.c,v 1.10 2010/12/14 23:38:30 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uba_mainbus.c,v 1.11 2015/07/05 03:03:00 matt Exp $");
 
 #define _VAX_BUS_DMA_PRIVATE
 
@@ -91,6 +91,7 @@
 /* Some Qbus-specific defines */
 #define        QBASIZE (8192 * VAX_NBPG)
 #define        QBAMAP  0x20088000
+#define        QBAMEM  0x30000000
 #define        QIOPAGE 0x20000000
 
 /*
@@ -121,6 +122,12 @@
 {
        struct mainbus_attach_args * const ma = aux;
        struct uba_vsoftc * const sc = device_private(self);
+       paddr_t paddr;
+       vaddr_t vaddr;
+       int *mapp;
+       int pgnum;
+       //int val;
+       int start;
 
        aprint_normal(": Q22\n");
 
@@ -140,6 +147,40 @@
        sc->uv_addr = QBAMAP;   /* Physical address of map registers */
 
        uba_dma_init(sc);
+
+       mapp = (int *)vax_map_physmem(QBAMAP, QBASIZE/VAX_NBPG);
+       //val = 0;
+       
+       for (paddr = QBAMEM, pgnum = 0, start = -1;
+            paddr < QBAMEM + QBASIZE - 8192;
+            paddr += VAX_NBPG, pgnum += 1) {
+               //val = mapp[pgnum];
+               mapp[pgnum] = 0;
+               vaddr = vax_map_physmem(paddr, 1);
+               if (badaddr((void *)vaddr, 2) == 0) {
+                       if (start < 0)
+                               start = pgnum;
+               } else if (start >= 0) {
+                       aprint_normal("sgmap exclusion at %#x - %#x\n", 
+                           start*VAX_NBPG, pgnum*VAX_NBPG - 1);
+                       vax_sgmap_resserve(start*VAX_NBPG,
+                           (pgnum - start)*VAX_NBPG, &sc->uv_sgmap);
+                       start = -1;
+               }
+               vax_unmap_physmem(vaddr, 1);
+               //mapp[pgnum] = val;
+       }
+       vax_unmap_physmem((vaddr_t)mapp, QBASIZE/VAX_NBPG);
+       if (start >= 0) {
+               aprint_normal("sgmap exclusion at %#x - %#x\n", 
+                   start*VAX_NBPG, pgnum*VAX_NBPG - 1);
+               vax_sgmap_reserve(start*VAX_NBPG, (pgnum - start)*VAX_NBPG,
+                   &sc->uv_sgmap);
+       }
+
+       /* reserve I/O space within Qbus */
+       vax_sgmap_reserve(0x3fe000, 0x400000 - 0x3fe000, &sc->uv_sgmap);
+
        uba_attach(&sc->uv_sc, QIOPAGE);
 }