[src/trunk]: src/sys/arch/mips/mips Add more KASSERTs

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

details:   https://anonhg.NetBSD.org/src/rev/88fab3e01a53
branches:  trunk
changeset: 338751:88fab3e01a53
user:      matt <matt%NetBSD.org@localhost>
date:      Sat Jun 06 21:03:45 2015 +0000

description:
Add more KASSERTs
After each CPU is marked running, wait a small of time or until it shows
up in kcpuset_running.

diffstat:

 sys/arch/mips/mips/cpu_subr.c |  26 ++++++++++++++------------
 1 files changed, 14 insertions(+), 12 deletions(-)

diffs (83 lines):

diff -r 30a4f03a8a22 -r 88fab3e01a53 sys/arch/mips/mips/cpu_subr.c
--- a/sys/arch/mips/mips/cpu_subr.c     Sat Jun 06 20:55:45 2015 +0000
+++ b/sys/arch/mips/mips/cpu_subr.c     Sat Jun 06 21:03:45 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cpu_subr.c,v 1.22 2015/06/06 17:46:47 macallan Exp $   */
+/*     $NetBSD: cpu_subr.c,v 1.23 2015/06/06 21:03:45 matt Exp $       */
 
 /*-
  * Copyright (c) 2010 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpu_subr.c,v 1.22 2015/06/06 17:46:47 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpu_subr.c,v 1.23 2015/06/06 21:03:45 matt Exp $");
 
 #include "opt_cputype.h"
 #include "opt_ddb.h"
@@ -122,12 +122,10 @@
        KASSERT(cpu_id < MAXCPUS);
 
 #ifdef MIPS64_OCTEON
-       const vaddr_t cpu_info_offset = 0x800;
        vaddr_t exc_page = MIPS_UTLB_MISS_EXC_VEC + 0x1000*cpu_id;
-       __CTASSERT(sizeof(struct cpu_info) <= 0x800);
-       __CTASSERT(sizeof(struct pmap_tlb_info) <= 0x400);
+       __CTASSERT(sizeof(struct cpu_info) + sizeof(struct pmap_tlb_info) <= 0x1000 - 0x280);
        
-       struct cpu_info * const ci = (void *) (exc_page + cpu_info_offset);
+       struct cpu_info * const ci = ((struct cpu_info *)(exc_page + 0x1000)) - 1;
        memset((void *)exc_page, 0, PAGE_SIZE);
 
        if (ti == NULL) {
@@ -686,7 +684,7 @@
 static int
 cpu_ipi_wait(volatile __cpuset_t *watchset, u_long mask)
 {
-       u_long limit = curcpu()->ci_cpu_freq;   /* some finite amount of time */
+       u_long limit = curcpu()->ci_cpu_freq/10;/* some finite amount of time */
 
        while (limit--)
                if (*watchset == mask)
@@ -920,9 +918,11 @@
        (*mips_locoresw.lsw_cpu_run)(ci);
 
        /*
-        * Now turn on interrupts.
+        * Now turn on interrupts (and verify they are on).
         */
        spl0();
+       KASSERTMSG(ci->ci_cpl == IPL_NONE, "cpl %d", ci->ci_cpl);
+       KASSERT(mips_cp0_status_read() & MIPS_SR_INT_IE);
 
        /*
         * And do a tail call to idle_loop
@@ -935,8 +935,6 @@
 {
        CPU_INFO_ITERATOR cii;
        struct cpu_info *ci;
-       aprint_verbose("Booting secondary processors (%#"PRIxCPUSET")",
-           cpus_hatched);
        for (CPU_INFO_FOREACH(cii, ci)) {
                if (CPU_IS_PRIMARY(ci))
                        continue;
@@ -948,12 +946,16 @@
                if (! CPUSET_HAS_P(cpus_hatched, cpu_index(ci)))
                        continue;
 
-               aprint_verbose(" %s", cpu_name(ci));
                ci->ci_data.cpu_cc_skew = mips3_cp0_count_read();
                atomic_or_ulong(&ci->ci_flags, CPUF_RUNNING);
                CPUSET_ADD(cpus_running, cpu_index(ci));
+               // Spin until the cpu calls idle_loop
+               for (u_int i = 0; i < 100; i++) {
+                       if (kcpuset_isset(kcpuset_running, cpu_index(ci)))
+                               break;
+                       delay(1000);
+               }
        }
-       aprint_verbose("\n");
 }
 
 void