From 72505d2af3a818bff5bd0ec7c712997f96417b03 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Tue, 9 Jul 2024 15:23:43 -0400 Subject: kernel/amd64: bus: Add bus abstraction layer Signed-off-by: Ian Moffett --- sys/include/arch/amd64/bus.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 sys/include/arch/amd64/bus.h (limited to 'sys/include') diff --git a/sys/include/arch/amd64/bus.h b/sys/include/arch/amd64/bus.h new file mode 100644 index 0000000..8f9bc39 --- /dev/null +++ b/sys/include/arch/amd64/bus.h @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * 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. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 _MACHINE_BUS_H_ +#define _MACHINE_BUS_H_ + +#include + +typedef uint64_t bus_addr_t; + +int bus_map(bus_addr_t addr, size_t size, int flags, void **vap); + +#endif /* !_MACHINE_BUS_H_ */ -- cgit v1.2.3