1/* $NetBSD: ttwogavar.h,v 1.8 2023/12/04 00:32:10 thorpej Exp $ */
2
3/*-
4 * Copyright (c) 1999 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#include <sys/extent.h>
33#include <sys/vmem_impl.h>
34
35#include <dev/isa/isavar.h>
36#include <dev/pci/pcivar.h>
37#include <alpha/pci/pci_sgmap_pte64.h>
38
39#define	TTWOGA_NBTS	VMEM_EST_BTCOUNT(1, 8)
40
41/*
42 * T2 System Address Map info.
43 */
44struct ttwoga_sysmap {
45	bus_addr_t	tsmap_sio_base;
46	bus_size_t	tsmap_sio_syssize;
47	bus_size_t	tsmap_sio_bussize;
48
49	bus_addr_t	tsmap_smem_base;
50	bus_size_t	tsmap_smem_syssize;
51	bus_size_t	tsmap_smem_bussize;
52
53	bus_addr_t	tsmap_dmem_base;
54	bus_size_t	tsmap_dmem_syssize;
55	bus_size_t	tsmap_dmem_bussize;
56
57	bus_addr_t	tsmap_conf_base;
58};
59
60/*
61 * A T2 Gate Array's configuration.
62 *
63 * All of the information that the T2-specific functions need to
64 * do their dirty work (and more!).
65 */
66struct ttwoga_config {
67	int	tc_initted;
68
69	int	tc_rev;
70
71	int	tc_hose;
72
73	bus_addr_t tc_io_bus_start, tc_d_mem_bus_start, tc_s_mem_bus_start;
74
75	const struct ttwoga_sysmap *tc_sysmap;
76
77	struct alpha_bus_space tc_iot, tc_memt;
78	struct alpha_pci_chipset tc_pc;
79
80	struct alpha_bus_dma_tag tc_dmat_direct;
81	struct alpha_bus_dma_tag tc_dmat_sgmap;
82
83	struct alpha_sgmap tc_sgmap;
84	int tc_use_tlb;			/* Gamma hardware bug */
85
86	struct vmem tc_io_arena_store;
87	struct vmem tc_d_mem_arena_store;
88	struct vmem tc_s_mem_arena_store;
89	struct vmem_btag tc_io_btag_store[TTWOGA_NBTS];
90	struct vmem_btag tc_d_mem_btag_store[TTWOGA_NBTS];
91	struct vmem_btag tc_s_mem_btag_store[TTWOGA_NBTS];
92
93	vmem_t *tc_io_arena;
94	vmem_t *tc_d_mem_arena;
95	vmem_t *tc_s_mem_arena;
96
97	struct alpha_shared_intr *tc_intrtab;
98
99	void	(*tc_enable_intr)(struct ttwoga_config *, int, int);
100	void	(*tc_setlevel)(struct ttwoga_config *, int, int);
101	void	(*tc_eoi)(struct ttwoga_config *, int);
102};
103
104extern cpuid_t ttwoga_conf_cpu;
105
106struct ttwoga_config *ttwoga_init(int);
107void	ttwoga_pci_init(pci_chipset_tag_t, void *);
108void	ttwoga_dma_init(struct ttwoga_config *);
109
110void	ttwoga_bus_io_init(bus_space_tag_t, void *);
111void	ttwoga_bus_mem_init(bus_space_tag_t, void *);
112