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9#ifndef __ASM_SH_PROCESSOR_32_H
10#define __ASM_SH_PROCESSOR_32_H
11#ifdef __KERNEL__
12
13#include <linux/compiler.h>
14#include <linux/linkage.h>
15#include <asm/page.h>
16#include <asm/types.h>
17#include <asm/hw_breakpoint.h>
18
19
20
21
22
23#define current_text_addr() ({ void *pc; __asm__("mova 1f, %0\n.align 2\n1:":"=z" (pc)); pc; })
24
25
26#define CCN_PVR 0xff000030
27#define CCN_CVR 0xff000040
28#define CCN_PRR 0xff000044
29
30
31
32
33
34
35#define TASK_SIZE 0x7c000000UL
36
37#define STACK_TOP TASK_SIZE
38#define STACK_TOP_MAX STACK_TOP
39
40
41
42
43#define TASK_UNMAPPED_BASE PAGE_ALIGN(TASK_SIZE / 3)
44
45
46
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52
53
54
55#define SR_DSP 0x00001000
56#define SR_IMASK 0x000000f0
57#define SR_FD 0x00008000
58#define SR_MD 0x40000000
59
60
61
62
63struct sh_dsp_struct {
64 unsigned long dsp_regs[14];
65 long status;
66};
67
68
69
70
71
72struct sh_fpu_hard_struct {
73 unsigned long fp_regs[16];
74 unsigned long xfp_regs[16];
75 unsigned long fpscr;
76 unsigned long fpul;
77
78 long status;
79};
80
81
82struct sh_fpu_soft_struct {
83 unsigned long fp_regs[16];
84 unsigned long xfp_regs[16];
85 unsigned long fpscr;
86 unsigned long fpul;
87
88 unsigned char lookahead;
89 unsigned long entry_pc;
90};
91
92union thread_xstate {
93 struct sh_fpu_hard_struct hardfpu;
94 struct sh_fpu_soft_struct softfpu;
95};
96
97struct thread_struct {
98
99 unsigned long sp;
100 unsigned long pc;
101
102
103 unsigned long flags;
104
105
106 struct perf_event *ptrace_bps[HBP_NUM];
107
108#ifdef CONFIG_SH_DSP
109
110 struct sh_dsp_struct dsp_status;
111#endif
112
113
114 union thread_xstate *xstate;
115
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118
119
120
121
122
123
124 unsigned char fpu_counter;
125};
126
127#define INIT_THREAD { \
128 .sp = sizeof(init_stack) + (long) &init_stack, \
129 .flags = 0, \
130}
131
132
133struct task_struct;
134
135extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned long new_sp);
136
137
138extern void release_thread(struct task_struct *);
139
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141
142
143
144static __inline__ void disable_fpu(void)
145{
146 unsigned long __dummy;
147
148
149 __asm__ __volatile__("stc sr, %0\n\t"
150 "or %1, %0\n\t"
151 "ldc %0, sr"
152 : "=&r" (__dummy)
153 : "r" (SR_FD));
154}
155
156static __inline__ void enable_fpu(void)
157{
158 unsigned long __dummy;
159
160
161 __asm__ __volatile__("stc sr, %0\n\t"
162 "and %1, %0\n\t"
163 "ldc %0, sr"
164 : "=&r" (__dummy)
165 : "r" (~SR_FD));
166}
167
168
169#define FPSCR_INIT 0x00080000
170
171#define FPSCR_CAUSE_MASK 0x0001f000
172#define FPSCR_FLAG_MASK 0x0000007c
173
174
175
176
177#define thread_saved_pc(tsk) (tsk->thread.pc)
178
179void show_trace(struct task_struct *tsk, unsigned long *sp,
180 struct pt_regs *regs);
181
182#ifdef CONFIG_DUMP_CODE
183void show_code(struct pt_regs *regs);
184#else
185static inline void show_code(struct pt_regs *regs)
186{
187}
188#endif
189
190extern unsigned long get_wchan(struct task_struct *p);
191
192#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
193#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[15])
194
195#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4)
196
197#define PREFETCH_STRIDE L1_CACHE_BYTES
198#define ARCH_HAS_PREFETCH
199#define ARCH_HAS_PREFETCHW
200
201static inline void prefetch(const void *x)
202{
203 __builtin_prefetch(x, 0, 3);
204}
205
206static inline void prefetchw(const void *x)
207{
208 __builtin_prefetch(x, 1, 3);
209}
210#endif
211
212#endif
213#endif
214