From 4e0475b7dbf0859b1e07a98e05eb47c2854b57a4 Mon Sep 17 00:00:00 2001
From: kettenis <kettenis@openbsd.org>
Date: Mon, 20 Aug 2018 19:38:07 +0000
Subject: [PATCH] Implement bus_space_mmap(9).

ok patrick@
---
 sys/arch/arm64/dev/arm64_bus_space.c | 12 ++++++++++--
 sys/arch/arm64/include/bus.h         |  7 ++++++-
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/sys/arch/arm64/dev/arm64_bus_space.c b/sys/arch/arm64/dev/arm64_bus_space.c
index c09ee5f4405..34c57e64c74 100644
--- a/sys/arch/arm64/dev/arm64_bus_space.c
+++ b/sys/arch/arm64/dev/arm64_bus_space.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: arm64_bus_space.c,v 1.6 2018/05/15 11:12:35 kettenis Exp $ */
+/*	$OpenBSD: arm64_bus_space.c,v 1.7 2018/08/20 19:38:07 kettenis Exp $ */
 
 /*
  * Copyright (c) 2001-2003 Opsycon AB  (www.opsycon.se / www.opsycon.com)
@@ -56,7 +56,8 @@ bus_space_t arm64_bs_tag = {
 	._space_map =		generic_space_map,
 	._space_unmap =		generic_space_unmap,
 	._space_subregion =	generic_space_region,
-	._space_vaddr =		generic_space_vaddr
+	._space_vaddr =		generic_space_vaddr,
+	._space_mmap =		generic_space_mmap
 };
 bus_space_t *fdt_cons_bs_tag = &arm64_bs_tag;
 
@@ -236,3 +237,10 @@ generic_space_vaddr(bus_space_tag_t t, bus_space_handle_t h)
 {
 	return (void *)h;
 }
+
+paddr_t
+generic_space_mmap(bus_space_tag_t t, bus_addr_t addr, off_t off,
+    int prot, int flags)
+{
+	return (addr + off);
+}
diff --git a/sys/arch/arm64/include/bus.h b/sys/arch/arm64/include/bus.h
index d479faaaa76..0e2b68b4084 100644
--- a/sys/arch/arm64/include/bus.h
+++ b/sys/arch/arm64/include/bus.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: bus.h,v 1.4 2018/05/15 11:12:35 kettenis Exp $ */
+/* $OpenBSD: bus.h,v 1.5 2018/08/20 19:38:07 kettenis Exp $ */
 /*
  * Copyright (c) 2003-2004 Opsycon AB Sweden.  All rights reserved.
  *
@@ -82,6 +82,8 @@ struct bus_space {
 	int		(*_space_subregion)(bus_space_tag_t, bus_space_handle_t,
 			  bus_size_t, bus_size_t, bus_space_handle_t *);
 	void *		(*_space_vaddr)(bus_space_tag_t, bus_space_handle_t);
+	paddr_t		(*_space_mmap)(bus_space_tag_t, bus_addr_t, off_t,
+			  int, int);
 };
 
 #define	bus_space_read_1(t, h, o) (*(t)->_space_read_1)((t), (h), (o))
@@ -119,6 +121,8 @@ struct bus_space {
 #define	BUS_SPACE_MAP_PREFETCHABLE	0x08
 
 #define	bus_space_vaddr(t, h)	(*(t)->_space_vaddr)((t), (h))
+#define	bus_space_mmap(t, a, o, p, f) \
+    (*(t)->_space_mmap)((t), (a), (o), (p), (f))
 
 /*----------------------------------------------------------------------------*/
 #define bus_space_read_multi(n,m)					      \
@@ -479,6 +483,7 @@ void	generic_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t);
 int	generic_space_region(bus_space_tag_t, bus_space_handle_t, bus_size_t,
 	    bus_size_t, bus_space_handle_t *);
 void	*generic_space_vaddr(bus_space_tag_t, bus_space_handle_t);
+paddr_t	generic_space_mmap(bus_space_tag_t, bus_addr_t, off_t, int, int);
 uint8_t generic_space_read_1(bus_space_tag_t, bus_space_handle_t, bus_size_t);
 uint16_t generic_space_read_2(bus_space_tag_t, bus_space_handle_t, bus_size_t);
 uint32_t generic_space_read_4(bus_space_tag_t, bus_space_handle_t, bus_size_t);
-- 
2.20.1