Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ASM_SH_PROCESSOR_H
3#define __ASM_SH_PROCESSOR_H
4
5#include <asm/cpu-features.h>
6#include <asm/segment.h>
7#include <asm/cache.h>
8
9#ifndef __ASSEMBLY__
10/*
11 * CPU type and hardware bug flags. Kept separately for each CPU.
12 *
13 * Each one of these also needs a CONFIG_CPU_SUBTYPE_xxx entry
14 * in arch/sh/mm/Kconfig, as well as an entry in arch/sh/kernel/setup.c
15 * for parsing the subtype in get_cpu_subtype().
16 */
17enum cpu_type {
18 /* SH-2 types */
19 CPU_SH7619, CPU_J2,
20
21 /* SH-2A types */
22 CPU_SH7201, CPU_SH7203, CPU_SH7206, CPU_SH7263, CPU_SH7264, CPU_SH7269,
23 CPU_MXG,
24
25 /* SH-3 types */
26 CPU_SH7705, CPU_SH7706, CPU_SH7707,
27 CPU_SH7708, CPU_SH7708S, CPU_SH7708R,
28 CPU_SH7709, CPU_SH7709A, CPU_SH7710, CPU_SH7712,
29 CPU_SH7720, CPU_SH7721, CPU_SH7729,
30
31 /* SH-4 types */
32 CPU_SH7750, CPU_SH7750S, CPU_SH7750R, CPU_SH7751, CPU_SH7751R,
33 CPU_SH7760, CPU_SH4_202, CPU_SH4_501,
34
35 /* SH-4A types */
36 CPU_SH7763, CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785, CPU_SH7786,
37 CPU_SH7723, CPU_SH7724, CPU_SH7757, CPU_SH7734, CPU_SHX3,
38
39 /* SH4AL-DSP types */
40 CPU_SH7343, CPU_SH7722, CPU_SH7366, CPU_SH7372,
41
42 /* Unknown subtype */
43 CPU_SH_NONE
44};
45
46enum cpu_family {
47 CPU_FAMILY_SH2,
48 CPU_FAMILY_SH2A,
49 CPU_FAMILY_SH3,
50 CPU_FAMILY_SH4,
51 CPU_FAMILY_SH4A,
52 CPU_FAMILY_SH4AL_DSP,
53 CPU_FAMILY_UNKNOWN,
54};
55
56/*
57 * TLB information structure
58 *
59 * Defined for both I and D tlb, per-processor.
60 */
61struct tlb_info {
62 unsigned long long next;
63 unsigned long long first;
64 unsigned long long last;
65
66 unsigned int entries;
67 unsigned int step;
68
69 unsigned long flags;
70};
71
72struct sh_cpuinfo {
73 unsigned int type, family;
74 int cut_major, cut_minor;
75 unsigned long loops_per_jiffy;
76 unsigned long asid_cache;
77
78 struct cache_info icache; /* Primary I-cache */
79 struct cache_info dcache; /* Primary D-cache */
80 struct cache_info scache; /* Secondary cache */
81
82 /* TLB info */
83 struct tlb_info itlb;
84 struct tlb_info dtlb;
85
86 unsigned int phys_bits;
87 unsigned long flags;
88} __attribute__ ((aligned(L1_CACHE_BYTES)));
89
90extern struct sh_cpuinfo cpu_data[];
91#define boot_cpu_data cpu_data[0]
92#define current_cpu_data cpu_data[smp_processor_id()]
93#define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
94
95#define cpu_sleep() __asm__ __volatile__ ("sleep" : : : "memory")
96#define cpu_relax() barrier()
97
98void default_idle(void);
99void stop_this_cpu(void *);
100
101/* Forward decl */
102struct seq_operations;
103struct task_struct;
104
105extern struct pt_regs fake_swapper_regs;
106
107extern void cpu_init(void);
108extern void cpu_probe(void);
109
110/* arch/sh/kernel/process.c */
111extern unsigned int xstate_size;
112extern void free_thread_xstate(struct task_struct *);
113extern struct kmem_cache *task_xstate_cachep;
114
115/* arch/sh/mm/alignment.c */
116extern int get_unalign_ctl(struct task_struct *, unsigned long addr);
117extern int set_unalign_ctl(struct task_struct *, unsigned int val);
118
119#define GET_UNALIGN_CTL(tsk, addr) get_unalign_ctl((tsk), (addr))
120#define SET_UNALIGN_CTL(tsk, val) set_unalign_ctl((tsk), (val))
121
122/* arch/sh/mm/init.c */
123extern unsigned int mem_init_done;
124
125/* arch/sh/kernel/setup.c */
126const char *get_cpu_subtype(struct sh_cpuinfo *c);
127extern const struct seq_operations cpuinfo_op;
128
129/* thread_struct flags */
130#define SH_THREAD_UAC_NOPRINT (1 << 0)
131#define SH_THREAD_UAC_SIGBUS (1 << 1)
132#define SH_THREAD_UAC_MASK (SH_THREAD_UAC_NOPRINT | SH_THREAD_UAC_SIGBUS)
133
134/* processor boot mode configuration */
135#define MODE_PIN0 (1 << 0)
136#define MODE_PIN1 (1 << 1)
137#define MODE_PIN2 (1 << 2)
138#define MODE_PIN3 (1 << 3)
139#define MODE_PIN4 (1 << 4)
140#define MODE_PIN5 (1 << 5)
141#define MODE_PIN6 (1 << 6)
142#define MODE_PIN7 (1 << 7)
143#define MODE_PIN8 (1 << 8)
144#define MODE_PIN9 (1 << 9)
145#define MODE_PIN10 (1 << 10)
146#define MODE_PIN11 (1 << 11)
147#define MODE_PIN12 (1 << 12)
148#define MODE_PIN13 (1 << 13)
149#define MODE_PIN14 (1 << 14)
150#define MODE_PIN15 (1 << 15)
151
152int generic_mode_pins(void);
153int test_mode_pin(int pin);
154
155#ifdef CONFIG_VSYSCALL
156int vsyscall_init(void);
157#else
158#define vsyscall_init() do { } while (0)
159#endif
160
161/*
162 * SH-2A has both 16 and 32-bit opcodes, do lame encoding checks.
163 */
164#ifdef CONFIG_CPU_SH2A
165extern unsigned int instruction_size(unsigned int insn);
166#else
167#define instruction_size(insn) (2)
168#endif
169
170#endif /* __ASSEMBLY__ */
171
172#include <asm/processor_32.h>
173
174#endif /* __ASM_SH_PROCESSOR_H */