[src/trunk]: src/sys/arch/arm/fdt Add arm_fdt_memory_dump helper for dumping ...

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

details:   https://anonhg.NetBSD.org/src/rev/4cc60328e132
branches:  trunk
changeset: 825086:4cc60328e132
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Thu Jun 29 20:55:10 2017 +0000

description:
Add arm_fdt_memory_dump helper for dumping physical addresses from ddb

diffstat:

 sys/arch/arm/fdt/arm_fdt.c    |  27 +++++++++++++++++++++++++--
 sys/arch/arm/fdt/arm_fdtvar.h |   4 +++-
 2 files changed, 28 insertions(+), 3 deletions(-)

diffs (61 lines):

diff -r 0e0ca691c000 -r 4cc60328e132 sys/arch/arm/fdt/arm_fdt.c
--- a/sys/arch/arm/fdt/arm_fdt.c        Thu Jun 29 20:54:28 2017 +0000
+++ b/sys/arch/arm/fdt/arm_fdt.c        Thu Jun 29 20:55:10 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: arm_fdt.c,v 1.3 2017/05/30 22:00:25 jmcneill Exp $ */
+/* $NetBSD: arm_fdt.c,v 1.4 2017/06/29 20:55:10 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2017 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: arm_fdt.c,v 1.3 2017/05/30 22:00:25 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: arm_fdt.c,v 1.4 2017/06/29 20:55:10 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -143,3 +143,26 @@
 {
        _arm_fdt_irq_handler(tf);
 }
+
+void
+arm_fdt_memory_dump(paddr_t pa)
+{
+       const struct arm_platform *plat = arm_fdt_platform();
+       struct fdt_attach_args faa;
+       bus_space_tag_t bst;
+       bus_space_handle_t bsh;
+
+       plat->init_attach_args(&faa);
+
+       bst = faa.faa_bst;
+       bus_space_map(bst, pa, 0x100, 0, &bsh);
+
+       for (int i = 0; i < 0x100; i += 0x10) {
+                printf("%" PRIxPTR ": %08x %08x %08x %08x\n",
+                    (uintptr_t)(pa + i),
+                   bus_space_read_4(bst, bsh, i + 0),
+                   bus_space_read_4(bst, bsh, i + 4),
+                   bus_space_read_4(bst, bsh, i + 8),
+                   bus_space_read_4(bst, bsh, i + 12));
+       }
+}
diff -r 0e0ca691c000 -r 4cc60328e132 sys/arch/arm/fdt/arm_fdtvar.h
--- a/sys/arch/arm/fdt/arm_fdtvar.h     Thu Jun 29 20:54:28 2017 +0000
+++ b/sys/arch/arm/fdt/arm_fdtvar.h     Thu Jun 29 20:55:10 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: arm_fdtvar.h,v 1.5 2017/06/02 13:53:28 jmcneill Exp $ */
+/* $NetBSD: arm_fdtvar.h,v 1.6 2017/06/29 20:55:10 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2017 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -71,4 +71,6 @@
 void   arm_fdt_irq_set_handler(void (*)(void *));
 void   arm_fdt_irq_handler(void *);
 
+void   arm_fdt_memory_dump(paddr_t);
+
 #endif /* !_ARM_ARM_FDTVAR_H */