[src/netbsd-9]: src/sys/arch/aarch64/aarch64 Pull up following revision(s) (r...

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

details:   https://anonhg.NetBSD.org/src/rev/ce6d2c2921e2
branches:  netbsd-9
changeset: 1002281:ce6d2c2921e2
user:      martin <martin%NetBSD.org@localhost>
date:      Fri Jun 04 14:00:17 2021 +0000

description:
Pull up following revision(s) (requested by skrll in ticket #1278):

        sys/arch/aarch64/aarch64/aarch64_machdep.c: revision 1.50
        sys/arch/aarch64/aarch64/aarch64_machdep.c: revision 1.60
        sys/arch/aarch64/aarch64/aarch64_machdep.c: revision 1.61

G/C

 -

More debug

 -

Two fixes for loading free pages into UVM

- Only consider a boot_physmem (inner loop) range that has its end
   (bp_end) after the bootconfig.dram (outer loop) range start (start).
   This was harmless as a later condition correctly checks there is only
   something to do if start < bp_end.

- Stop processing boot_physmem ranges if all the bootconfig.dram range has
   been passed to UVM.  This fixes a boot problem for simon@

diffstat:

 sys/arch/aarch64/aarch64/aarch64_machdep.c |  22 +++++++++++++++++-----
 1 files changed, 17 insertions(+), 5 deletions(-)

diffs (68 lines):

diff -r 378d5dbc1f6c -r ce6d2c2921e2 sys/arch/aarch64/aarch64/aarch64_machdep.c
--- a/sys/arch/aarch64/aarch64/aarch64_machdep.c        Tue Jun 01 10:41:23 2021 +0000
+++ b/sys/arch/aarch64/aarch64/aarch64_machdep.c        Fri Jun 04 14:00:17 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: aarch64_machdep.c,v 1.28.4.3 2020/02/12 20:10:09 martin Exp $ */
+/* $NetBSD: aarch64_machdep.c,v 1.28.4.4 2021/06/04 14:00:17 martin Exp $ */
 
 /*-
  * Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: aarch64_machdep.c,v 1.28.4.3 2020/02/12 20:10:09 martin Exp $");
+__KERNEL_RCSID(1, "$NetBSD: aarch64_machdep.c,v 1.28.4.4 2021/06/04 14:00:17 martin Exp $");
 
 #include "opt_arm_debug.h"
 #include "opt_ddb.h"
@@ -275,7 +275,7 @@
        vaddr_t kernstart, kernend;
        vaddr_t kernstart_l2 __unused, kernend_l2;      /* L2 table 2MB aligned */
        vaddr_t kernelvmstart;
-       int i;
+       size_t i;
 
        cputype = cpu_idnum();  /* for compatible arm */
 
@@ -398,17 +398,24 @@
                end = start + bootconfig.dram[i].pages;
 
                int vm_freelist = VM_FREELIST_DEFAULT;
+
+               VPRINTF("block %2zu start %08lx  end %08lx\n", i, ptoa(start),
+                   ptoa(end));
+
                /*
                 * This assumes the bp list is sorted in ascending
                 * order.
                 */
                paddr_t segend = end;
-               for (size_t j = 0; j < nbp; j++ /*, start = segend, segend = end */) {
+               for (size_t j = 0; j < nbp && start < end; j++) {
                        paddr_t bp_start = bp[j].bp_start;
                        paddr_t bp_end = bp_start + bp[j].bp_pages;
 
+                       VPRINTF("   bp %2zu start %08lx  end %08lx\n",
+                           j, ptoa(bp_start), ptoa(bp_end));
+
                        KASSERT(bp_start < bp_end);
-                       if (start > bp_end || segend < bp_start)
+                       if (start >= bp_end || segend < bp_start)
                                continue;
 
                        if (start < bp_start)
@@ -420,8 +427,13 @@
                                }
                                vm_freelist = bp[j].bp_freelist;
 
+                               VPRINTF("         start %08lx  end %08lx"
+                                   "... loading in freelist %d\n", ptoa(start),
+                                   ptoa(segend), vm_freelist);
+
                                uvm_page_physload(start, segend, start, segend,
                                    vm_freelist);
+
                                memsize_total += ptoa(segend - start);
                                start = segend;
                                segend = end;