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-rw-r--r--sys/amd64/include/bus.h151
1 files changed, 149 insertions, 2 deletions
diff --git a/sys/amd64/include/bus.h b/sys/amd64/include/bus.h
index f1af2cf6168c..7594eb4e7826 100644
--- a/sys/amd64/include/bus.h
+++ b/sys/amd64/include/bus.h
@@ -1,6 +1,153 @@
/*-
- * This file is in the public domain.
+ * Copyright (c) 2012 Intel Corporation
+ * Copyright (c) 2009 Marcel Moolenaar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
*/
-/* $FreeBSD$ */
+#ifndef _MACHINE_BUS_H_
+#define _MACHINE_BUS_H_
+
+#include <sys/systm.h>
#include <x86/bus.h>
+
+#define KASSERT_BUS_SPACE_MEM_ONLY(tag) \
+ KASSERT((tag) == X86_BUS_SPACE_MEM, \
+ ("%s: can only handle mem space", __func__))
+
+static __inline uint64_t
+bus_space_read_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+ bus_size_t ofs)
+{
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ return (*(volatile uint64_t *)(bsh + ofs));
+}
+
+static __inline void
+bus_space_write_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+ bus_size_t ofs, uint64_t val)
+{
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ *(volatile uint64_t *)(bsh + ofs) = val;
+}
+
+static __inline void
+bus_space_read_region_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+ bus_size_t ofs, uint64_t *bufp, size_t count)
+{
+ volatile uint64_t *bsp;
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ bsp = (void *)(bsh + ofs);
+ while (count-- > 0)
+ *bufp++ = *bsp++;
+}
+
+static __inline void
+bus_space_write_region_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+ bus_size_t ofs, uint64_t const *bufp, size_t count)
+{
+ volatile uint64_t *bsp;
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ bsp = (void *)(bsh + ofs);
+ while (count-- > 0)
+ *bsp++ = *bufp++;
+}
+
+static __inline void
+bus_space_set_region_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+ bus_size_t ofs, uint64_t val, size_t count)
+{
+ volatile uint64_t *bsp;
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ bsp = (void *)(bsh + ofs);
+ while (count-- > 0)
+ *bsp++ = val;
+}
+
+static __inline void
+bus_space_copy_region_8(bus_space_tag_t tag, bus_space_handle_t sbsh,
+ bus_size_t sofs, bus_space_handle_t dbsh, bus_size_t dofs, size_t count)
+{
+ volatile uint64_t *dst, *src;
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ src = (void *)(sbsh + sofs);
+ dst = (void *)(dbsh + dofs);
+ if (src < dst) {
+ src += count - 1;
+ dst += count - 1;
+ while (count-- > 0)
+ *dst-- = *src--;
+ } else {
+ while (count-- > 0)
+ *dst++ = *src++;
+ }
+}
+
+static __inline void
+bus_space_read_multi_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+ bus_size_t ofs, uint64_t *bufp, size_t count)
+{
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ while (count-- > 0)
+ *bufp++ = *(volatile uint64_t *)(bsh + ofs);
+}
+
+static __inline void
+bus_space_write_multi_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+ bus_size_t ofs, uint64_t const *bufp, size_t count)
+{
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ while (count-- > 0)
+ *(volatile uint64_t *)(bsh + ofs) = *bufp++;
+}
+
+static __inline void
+bus_space_set_multi_8(bus_space_tag_t tag, bus_space_handle_t bsh,
+ bus_size_t ofs, uint64_t val, size_t count)
+{
+
+ KASSERT_BUS_SPACE_MEM_ONLY(tag);
+
+ while (count-- > 0)
+ *(volatile uint64_t *)(bsh + ofs) = val;
+}
+
+#endif /*_MACHINE_BUS_H_*/