1 /* $NetBSD: cpuvar.h,v 1.21 2020/07/06 10:54:56 rin Exp $ */
2 /*-
3 * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Raytheon BBN Technologies Corp and Defense Advanced Research Projects
8 * Agency and which was developed by Matt Thomas of 3am Software Foundry.
9 *
10 * This material is based upon work supported by the Defense Advanced Research
11 * Projects Agency and Space and Naval Warfare Systems Center, Pacific, under
12 * Contract No. N66001-09-C-2073.
13 * Approved for Public Release, Distribution Unlimited
14 *
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
17 * are met:
18 * 1. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37 #ifndef _POWERPC_BOOKE_CPUVAR_H_
38 #define _POWERPC_BOOKE_CPUVAR_H_
39
40 #ifdef _KERNEL_OPT
41 #include "opt_multiprocessor.h"
42 #endif
43
44 #include <sys/bus.h>
45 #include <prop/proplib.h>
46 #include <powerpc/psl.h>
47
48 struct cpunode_softc {
49 device_t sc_dev;
50 u_int sc_children;
51 };
52
53 struct cpu_softc {
54 struct cpu_info *cpu_ci;
55 struct evcnt *cpu_evcnt_intrs;
56 bus_space_tag_t cpu_bst;
57 bus_space_tag_t cpu_le_bst;
58 bus_space_handle_t cpu_bsh;
59 bus_addr_t cpu_clock_gtbcr;
60
61 paddr_t cpu_highmem;
62
63 u_int cpu_pcpls[5];
64 struct evcnt cpu_evcnt_spurious_intr;
65
66 struct evcnt cpu_ev_late_clock;
67 u_long cpu_ticks_per_clock_intr;
68 struct evcnt cpu_ev_exec_trap_sync;
69
70 uint64_t cpu_spl_tb[NIPL][NIPL];
71 };
72
73 struct cpunode_locators {
74 const char *cnl_name;
75 bus_addr_t cnl_addr;
76 bus_size_t cnl_size;
77 uint8_t cnl_instance;
78 uint8_t cnl_nintr;
79 uint8_t cnl_intrs[4];
80 uint32_t cnl_flags;
81 uint16_t cnl_ids[6];
82 };
83
84 struct cpunode_attach_args {
85 const char *cna_busname;
86 bus_space_tag_t cna_memt;
87 bus_space_tag_t cna_le_memt;
88 bus_dma_tag_t cna_dmat;
89 struct cpunode_locators cna_locs;
90 u_int cna_childmask;
91 };
92
93 struct mainbus_attach_args {
94 const char *ma_name;
95 bus_space_tag_t ma_memt;
96 bus_space_tag_t ma_le_memt;
97 bus_dma_tag_t ma_dmat;
98 int ma_node;
99 };
100
101 struct generic_attach_args {
102 const char *ga_name;
103 bus_space_tag_t ga_bst;
104 bus_dma_tag_t ga_dmat;
105 bus_addr_t ga_addr;
106 bus_size_t ga_size;
107 int ga_cs;
108 int ga_irq;
109 };
110
111 #ifndef __BSD_PT_ENTRY_T
112 #define __BSD_PT_ENTRY_T __uint32_t
113 typedef __BSD_PT_ENTRY_T pt_entry_t;
114 #define PRIxPTE PRIx32
115 #endif
116
117 #include <uvm/pmap/tlb.h>
118
119 struct tlb_md_io_ops {
120 /*
121 * We need mapiodev to be first so we can easily override it in
122 * early boot by doing cpu_md_ops.tlb_md_ops = (const struct
123 * tlb_md_ops *) &<variable containing mapiodev pointer>.
124 */
125 void *(*md_tlb_mapiodev)(paddr_t, psize_t, bool);
126 void (*md_tlb_unmapiodev)(vaddr_t, vsize_t);
127 int (*md_tlb_ioreserve)(vaddr_t, vsize_t, uint32_t);
128 int (*md_tlb_iorelease)(vaddr_t);
129 };
130
131 struct cpu_md_ops {
132 const struct cpunode_locators *md_cpunode_locs;
133 void (*md_cpu_attach)(device_t, u_int);
134
135 void (*md_device_register)(device_t, void *);
136 void (*md_cpu_startup)(void);
137 void (*md_cpu_reset)(void);
138 void (*md_cpunode_attach)(device_t, device_t, void *);
139
140 const struct tlb_md_ops *md_tlb_ops;
141 const struct tlb_md_io_ops *md_tlb_io_ops;
142 };
143
144
145 #ifdef _KERNEL
146
147 static __inline register_t
wrtee(register_t msr)148 wrtee(register_t msr)
149 {
150 register_t old_msr;
151 __asm("mfmsr\t%0" : "=r"(old_msr));
152
153 if (__builtin_constant_p(msr)) {
154 __asm __volatile("wrteei\t%0" :: "n"((msr & PSL_EE) ? 1 : 0));
155 } else {
156 __asm __volatile("wrtee\t%0" :: "r"(msr));
157 }
158 return old_msr;
159 }
160
161 struct trapframe;
162 void booke_sstep(struct trapframe *);
163
164 void booke_cpu_startup(const char *); /* model name */
165 extern struct powerpc_bus_dma_tag booke_bus_dma_tag;
166
167 extern struct cpu_info cpu_info[];
168 #ifdef MULTIPROCESSOR
169 extern volatile struct cpu_hatch_data cpu_hatch_data;
170 #endif
171
172 void cpu_evcnt_attach(struct cpu_info *);
173 uint32_t cpu_read_4(bus_size_t);
174 uint8_t cpu_read_1(bus_size_t);
175 void cpu_write_4(bus_size_t, uint32_t);
176 void cpu_write_1(bus_size_t, uint8_t);
177
178 void dump_splhist(struct cpu_info *, void (*)(const char *, ...));
179 void calc_delayconst(void);
180
181 struct intrsw;
182 void exception_init(const struct intrsw *);
183
184 void *tlb_mapiodev(paddr_t, psize_t, bool);
185 void tlb_unmapiodev(vaddr_t, vsize_t);
186 int tlb_ioreserve(vaddr_t, vsize_t, pt_entry_t);
187 int tlb_iorelease(vaddr_t);
188
189 extern struct cpu_md_ops cpu_md_ops;
190
191 void board_info_init(void);
192 void board_info_add_number(const char *, uint64_t);
193 void board_info_add_data(const char *, const void *, size_t);
194 void board_info_add_string(const char *, const char *);
195 void board_info_add_bool(const char *);
196 void board_info_add_object(const char *, void *);
197 uint64_t board_info_get_number(const char *);
198 bool board_info_get_bool(const char *);
199 void *board_info_get_object(const char *);
200 const void *
201 board_info_get_data(const char *, size_t *);
202
203 /* trap.c */
204 void dump_trapframe(const struct trapframe *, void (*)(const char *, ...));
205
206 extern char root_string[];
207 extern paddr_t msgbuf_paddr;
208 extern prop_dictionary_t board_properties;
209 extern psize_t pmemsize;
210 #endif
211
212 #endif /* !_POWERPC_BOOKE_CPUVAR_H_ */
213