2 * Copyright (c) 1998 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _MACHINE_CHIPSET_H_
30 #define _MACHINE_CHIPSET_H_
32 typedef u_int64_t alpha_chipset_read_hae_t(void);
33 typedef void alpha_chipset_write_hae_t(u_int64_t);
37 typedef struct alpha_chipset {
39 * Access the HAE register
41 alpha_chipset_read_hae_t* read_hae;
42 alpha_chipset_write_hae_t* write_hae;
45 * Scatter-Gather map for ISA dma.
50 * Scatter-Gather map for PCI dma.
52 struct sgmap* pci_sgmap;
61 extern alpha_chipset_t chipset;
64 * Exported sysctl variables describing the PCI chipset.
66 extern char chipset_type[10];
67 extern int chipset_bwx;
68 extern long chipset_ports;
69 extern long chipset_memory;
70 extern long chipset_dense;
71 extern long chipset_hae_mask;
73 #endif /* !_MACHINE_CHIPSET_H_ */