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      1 /*	$NetBSD: malta_bus_io.c,v 1.9 2026/05/10 14:56:39 tls Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Platform-specific PCI bus I/O support for the MIPS Malta.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 __KERNEL_RCSID(0, "$NetBSD: malta_bus_io.c,v 1.9 2026/05/10 14:56:39 tls Exp $");
     38 
     39 #include <sys/param.h>
     40 
     41 #include <evbmips/malta/maltareg.h>
     42 #include <evbmips/malta/maltavar.h>
     43 
     44 #define	CHIP		malta
     45 #define	CHIP_IO		/* defined */
     46 
     47 /*
     48  * This platform's PCI I/O region is DEVICE_LITTLE_ENDIAN (tested on
     49  * QEMU 10, which has recently had what purports to be a thorough going
     50  * over to conform it to the actual hardware) so we need CHIP_LITTLE_ENDIAN
     51  * here to accommodate big-endian kernels.
     52  *
     53  */
     54 #define CHIP_LITTLE_ENDIAN
     55 
     56 #define	CHIP_EX_MALLOC_SAFE(v)	(((struct malta_config *)(v))->mc_mallocsafe)
     57 #define	CHIP_EXTENT(v)		(((struct malta_config *)(v))->mc_io_ex)
     58 
     59 /* IO region 1 */
     60 #define	CHIP_W1_BUS_START(v)	0x00000000UL
     61 #define	CHIP_W1_BUS_END(v)	MALTA_PCIMEM3_SIZE
     62 #define	CHIP_W1_SYS_START(v)	((u_long)MALTA_PCIMEM3_BASE)
     63 #define	CHIP_W1_SYS_END(v)	((u_long)MALTA_PCIMEM3_BASE + \
     64 					CHIP_W1_BUS_END(v))
     65 
     66 #include <mips/mips/bus_space_alignstride_chipdep.c>
     67