LinuxKPI: Add linux/ioport.h header

Sponsored by:	Serenity Cyber Security, LLC
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D42817

(cherry picked from commit 9903d83d67ea5eed7c36fbe8b4afe6c4dd148d0e)

2 files changed, 57 insertions, 0 deletions

diff --git a/sys/compat/linuxkpi/common/include/linux/ioport.h b/sys/compat/linuxkpi/common/include/linux/ioport.h
new file mode 100644
index 000000000000..444f3ad94602
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/linux/ioport.h
@@ -0,0 +1,57 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2023 Serenity Cyber Security, LLC.
+ *
+ * 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.
+ */
+
+#ifndef _LINUXKPI_LINUX_IOPORT_H
+#define _LINUXKPI_LINUX_IOPORT_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+#define DEFINE_RES_MEM(_start, _size)		\
+	(struct resource) {			\
+		.start = (_start),		\
+		.end = (_start) + (_size) - 1,	\
+	}
+
+struct resource {
+	resource_size_t start;
+	resource_size_t end;
+};
+
+static inline resource_size_t
+resource_size(const struct resource *r)
+{
+	return (r->end - r->start + 1);
+}
+
+static inline bool
+resource_contains(struct resource *a, struct resource *b)
+{
+	return (a->start <= b->start && a->end >= b->end);
+}
+
+#endif
diff --git a/sys/compat/linuxkpi/dummy/include/linux/ioport.h b/sys/compat/linuxkpi/dummy/include/linux/ioport.h
deleted file mode 100644
index e69de29bb2d1..000000000000
--- a/sys/compat/linuxkpi/dummy/include/linux/ioport.h
+++ /dev/null