[src/trunk]: src/sys/arch/arm/cortex Print the GICC_IIDR when AB_DEBUG

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

details:   https://anonhg.NetBSD.org/src/rev/f5371ef84d6e
branches:  trunk
changeset: 354569:f5371ef84d6e
user:      skrll <skrll%NetBSD.org@localhost>
date:      Thu Jun 22 07:56:40 2017 +0000

description:
Print the GICC_IIDR when AB_DEBUG

diffstat:

 sys/arch/arm/cortex/gic.c |  13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diffs (41 lines):

diff -r c6cf45449765 -r f5371ef84d6e sys/arch/arm/cortex/gic.c
--- a/sys/arch/arm/cortex/gic.c Thu Jun 22 07:02:14 2017 +0000
+++ b/sys/arch/arm/cortex/gic.c Thu Jun 22 07:56:40 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: gic.c,v 1.25 2017/06/22 06:51:30 skrll Exp $   */
+/*     $NetBSD: gic.c,v 1.26 2017/06/22 07:56:40 skrll Exp $   */
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -35,7 +35,7 @@
 #define _INTR_PRIVATE
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: gic.c,v 1.25 2017/06/22 06:51:30 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: gic.c,v 1.26 2017/06/22 07:56:40 skrll Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -577,6 +577,12 @@
        uint32_t pmr = gicc_read(sc, GICC_PMR);
        u_int priorities = 1 << popcount32(pmr);
 
+       const uint32_t iidr = gicc_read(sc, GICC_IIDR);
+       const int iidr_prod = __SHIFTOUT(iidr, GICC_IIDR_ProductID);
+       const int iidr_arch = __SHIFTOUT(iidr, GICC_IIDR_ArchVersion);
+       const int iidr_rev = __SHIFTOUT(iidr, GICC_IIDR_Revision);
+       const int iidr_imp = __SHIFTOUT(iidr, GICC_IIDR_Implementer);
+
        /*
         * Find the boot processor's CPU interface number.
         */
@@ -611,6 +617,9 @@
        aprint_normal(": Generic Interrupt Controller, "
            "%zu sources (%zu valid)\n",
            sc->sc_pic.pic_maxsources, sc->sc_gic_lines);
+       aprint_debug_dev(sc->sc_dev, "Architecture version %d"
+           " (0x%x:%d rev %d)\n", iidr_arch, iidr_imp, iidr_prod,
+           iidr_rev);
 
 #ifdef MULTIPROCESSOR
        sc->sc_pic.pic_cpus = kcpuset_running;