diff options
author | Paul Mundt <lethal@linux-sh.org> | 2007-11-10 05:46:31 -0500 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-27 23:18:42 -0500 |
commit | a62a3861e0adfd2612372883b5b1fc05a5182796 (patch) | |
tree | d3ff2c41f2a059173c8959f006bef770de528a0b | |
parent | 36bcd39dbca824daffe16d607ae574b6edc7d31a (diff) |
sh: Split out system.h in to _32 and _64 variants.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
-rw-r--r-- | include/asm-sh/system.h | 97 | ||||
-rw-r--r-- | include/asm-sh/system_32.h | 97 | ||||
-rw-r--r-- | include/asm-sh/system_64.h | 39 | ||||
-rw-r--r-- | include/asm-sh64/system.h | 190 |
4 files changed, 144 insertions, 279 deletions
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index 288abeb5476f..0cfa96aa5844 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h | |||
@@ -12,60 +12,9 @@ | |||
12 | #include <asm/types.h> | 12 | #include <asm/types.h> |
13 | #include <asm/ptrace.h> | 13 | #include <asm/ptrace.h> |
14 | 14 | ||
15 | struct task_struct *__switch_to(struct task_struct *prev, | ||
16 | struct task_struct *next); | ||
17 | |||
18 | #define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */ | 15 | #define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */ |
19 | /* | ||
20 | * switch_to() should switch tasks to task nr n, first | ||
21 | */ | ||
22 | |||
23 | #define switch_to(prev, next, last) do { \ | ||
24 | struct task_struct *__last; \ | ||
25 | register unsigned long *__ts1 __asm__ ("r1") = &prev->thread.sp; \ | ||
26 | register unsigned long *__ts2 __asm__ ("r2") = &prev->thread.pc; \ | ||
27 | register unsigned long *__ts4 __asm__ ("r4") = (unsigned long *)prev; \ | ||
28 | register unsigned long *__ts5 __asm__ ("r5") = (unsigned long *)next; \ | ||
29 | register unsigned long *__ts6 __asm__ ("r6") = &next->thread.sp; \ | ||
30 | register unsigned long __ts7 __asm__ ("r7") = next->thread.pc; \ | ||
31 | __asm__ __volatile__ (".balign 4\n\t" \ | ||
32 | "stc.l gbr, @-r15\n\t" \ | ||
33 | "sts.l pr, @-r15\n\t" \ | ||
34 | "mov.l r8, @-r15\n\t" \ | ||
35 | "mov.l r9, @-r15\n\t" \ | ||
36 | "mov.l r10, @-r15\n\t" \ | ||
37 | "mov.l r11, @-r15\n\t" \ | ||
38 | "mov.l r12, @-r15\n\t" \ | ||
39 | "mov.l r13, @-r15\n\t" \ | ||
40 | "mov.l r14, @-r15\n\t" \ | ||
41 | "mov.l r15, @r1 ! save SP\n\t" \ | ||
42 | "mov.l @r6, r15 ! change to new stack\n\t" \ | ||
43 | "mova 1f, %0\n\t" \ | ||
44 | "mov.l %0, @r2 ! save PC\n\t" \ | ||
45 | "mov.l 2f, %0\n\t" \ | ||
46 | "jmp @%0 ! call __switch_to\n\t" \ | ||
47 | " lds r7, pr ! with return to new PC\n\t" \ | ||
48 | ".balign 4\n" \ | ||
49 | "2:\n\t" \ | ||
50 | ".long __switch_to\n" \ | ||
51 | "1:\n\t" \ | ||
52 | "mov.l @r15+, r14\n\t" \ | ||
53 | "mov.l @r15+, r13\n\t" \ | ||
54 | "mov.l @r15+, r12\n\t" \ | ||
55 | "mov.l @r15+, r11\n\t" \ | ||
56 | "mov.l @r15+, r10\n\t" \ | ||
57 | "mov.l @r15+, r9\n\t" \ | ||
58 | "mov.l @r15+, r8\n\t" \ | ||
59 | "lds.l @r15+, pr\n\t" \ | ||
60 | "ldc.l @r15+, gbr\n\t" \ | ||
61 | : "=z" (__last) \ | ||
62 | : "r" (__ts1), "r" (__ts2), "r" (__ts4), \ | ||
63 | "r" (__ts5), "r" (__ts6), "r" (__ts7) \ | ||
64 | : "r3", "t"); \ | ||
65 | last = __last; \ | ||
66 | } while (0) | ||
67 | 16 | ||
68 | #ifdef CONFIG_CPU_SH4A | 17 | #if defined(CONFIG_CPU_SH4A) || defined(CONFIG_CPU_SH5) |
69 | #define __icbi() \ | 18 | #define __icbi() \ |
70 | { \ | 19 | { \ |
71 | unsigned long __addr; \ | 20 | unsigned long __addr; \ |
@@ -91,7 +40,7 @@ struct task_struct *__switch_to(struct task_struct *prev, | |||
91 | * Historically we have only done this type of barrier for the MMUCR, but | 40 | * Historically we have only done this type of barrier for the MMUCR, but |
92 | * it's also necessary for the CCR, so we make it generic here instead. | 41 | * it's also necessary for the CCR, so we make it generic here instead. |
93 | */ | 42 | */ |
94 | #ifdef CONFIG_CPU_SH4A | 43 | #if defined(CONFIG_CPU_SH4A) || defined(CONFIG_CPU_SH5) |
95 | #define mb() __asm__ __volatile__ ("synco": : :"memory") | 44 | #define mb() __asm__ __volatile__ ("synco": : :"memory") |
96 | #define rmb() mb() | 45 | #define rmb() mb() |
97 | #define wmb() __asm__ __volatile__ ("synco": : :"memory") | 46 | #define wmb() __asm__ __volatile__ ("synco": : :"memory") |
@@ -119,42 +68,6 @@ struct task_struct *__switch_to(struct task_struct *prev, | |||
119 | 68 | ||
120 | #define set_mb(var, value) do { (void)xchg(&var, value); } while (0) | 69 | #define set_mb(var, value) do { (void)xchg(&var, value); } while (0) |
121 | 70 | ||
122 | /* | ||
123 | * Jump to P2 area. | ||
124 | * When handling TLB or caches, we need to do it from P2 area. | ||
125 | */ | ||
126 | #define jump_to_P2() \ | ||
127 | do { \ | ||
128 | unsigned long __dummy; \ | ||
129 | __asm__ __volatile__( \ | ||
130 | "mov.l 1f, %0\n\t" \ | ||
131 | "or %1, %0\n\t" \ | ||
132 | "jmp @%0\n\t" \ | ||
133 | " nop\n\t" \ | ||
134 | ".balign 4\n" \ | ||
135 | "1: .long 2f\n" \ | ||
136 | "2:" \ | ||
137 | : "=&r" (__dummy) \ | ||
138 | : "r" (0x20000000)); \ | ||
139 | } while (0) | ||
140 | |||
141 | /* | ||
142 | * Back to P1 area. | ||
143 | */ | ||
144 | #define back_to_P1() \ | ||
145 | do { \ | ||
146 | unsigned long __dummy; \ | ||
147 | ctrl_barrier(); \ | ||
148 | __asm__ __volatile__( \ | ||
149 | "mov.l 1f, %0\n\t" \ | ||
150 | "jmp @%0\n\t" \ | ||
151 | " nop\n\t" \ | ||
152 | ".balign 4\n" \ | ||
153 | "1: .long 2f\n" \ | ||
154 | "2:" \ | ||
155 | : "=&r" (__dummy)); \ | ||
156 | } while (0) | ||
157 | |||
158 | static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val) | 71 | static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val) |
159 | { | 72 | { |
160 | unsigned long flags, retval; | 73 | unsigned long flags, retval; |
@@ -281,4 +194,10 @@ asmlinkage void bug_trap_handler(unsigned long r4, unsigned long r5, | |||
281 | 194 | ||
282 | #define arch_align_stack(x) (x) | 195 | #define arch_align_stack(x) (x) |
283 | 196 | ||
197 | #ifdef CONFIG_SUPERH32 | ||
198 | # include "system_32.h" | ||
199 | #else | ||
200 | # include "system_64.h" | ||
201 | #endif | ||
202 | |||
284 | #endif | 203 | #endif |
diff --git a/include/asm-sh/system_32.h b/include/asm-sh/system_32.h new file mode 100644 index 000000000000..ad37e8d5f31e --- /dev/null +++ b/include/asm-sh/system_32.h | |||
@@ -0,0 +1,97 @@ | |||
1 | #ifndef __ASM_SH_SYSTEM_32_H | ||
2 | #define __ASM_SH_SYSTEM_32_H | ||
3 | |||
4 | #include <linux/types.h> | ||
5 | |||
6 | struct task_struct *__switch_to(struct task_struct *prev, | ||
7 | struct task_struct *next); | ||
8 | |||
9 | /* | ||
10 | * switch_to() should switch tasks to task nr n, first | ||
11 | */ | ||
12 | #define switch_to(prev, next, last) \ | ||
13 | do { \ | ||
14 | register u32 *__ts1 __asm__ ("r1") = &prev->thread.sp; \ | ||
15 | register u32 *__ts2 __asm__ ("r2") = &prev->thread.pc; \ | ||
16 | register u32 *__ts4 __asm__ ("r4") = (u32 *)prev; \ | ||
17 | register u32 *__ts5 __asm__ ("r5") = (u32 *)next; \ | ||
18 | register u32 *__ts6 __asm__ ("r6") = &next->thread.sp; \ | ||
19 | register u32 __ts7 __asm__ ("r7") = next->thread.pc; \ | ||
20 | struct task_struct *__last; \ | ||
21 | \ | ||
22 | __asm__ __volatile__ ( \ | ||
23 | ".balign 4\n\t" \ | ||
24 | "stc.l gbr, @-r15\n\t" \ | ||
25 | "sts.l pr, @-r15\n\t" \ | ||
26 | "mov.l r8, @-r15\n\t" \ | ||
27 | "mov.l r9, @-r15\n\t" \ | ||
28 | "mov.l r10, @-r15\n\t" \ | ||
29 | "mov.l r11, @-r15\n\t" \ | ||
30 | "mov.l r12, @-r15\n\t" \ | ||
31 | "mov.l r13, @-r15\n\t" \ | ||
32 | "mov.l r14, @-r15\n\t" \ | ||
33 | "mov.l r15, @r1\t! save SP\n\t" \ | ||
34 | "mov.l @r6, r15\t! change to new stack\n\t" \ | ||
35 | "mova 1f, %0\n\t" \ | ||
36 | "mov.l %0, @r2\t! save PC\n\t" \ | ||
37 | "mov.l 2f, %0\n\t" \ | ||
38 | "jmp @%0\t! call __switch_to\n\t" \ | ||
39 | " lds r7, pr\t! with return to new PC\n\t" \ | ||
40 | ".balign 4\n" \ | ||
41 | "2:\n\t" \ | ||
42 | ".long __switch_to\n" \ | ||
43 | "1:\n\t" \ | ||
44 | "mov.l @r15+, r14\n\t" \ | ||
45 | "mov.l @r15+, r13\n\t" \ | ||
46 | "mov.l @r15+, r12\n\t" \ | ||
47 | "mov.l @r15+, r11\n\t" \ | ||
48 | "mov.l @r15+, r10\n\t" \ | ||
49 | "mov.l @r15+, r9\n\t" \ | ||
50 | "mov.l @r15+, r8\n\t" \ | ||
51 | "lds.l @r15+, pr\n\t" \ | ||
52 | "ldc.l @r15+, gbr\n\t" \ | ||
53 | : "=z" (__last) \ | ||
54 | : "r" (__ts1), "r" (__ts2), "r" (__ts4), \ | ||
55 | "r" (__ts5), "r" (__ts6), "r" (__ts7) \ | ||
56 | : "r3", "t"); \ | ||
57 | \ | ||
58 | last = __last; \ | ||
59 | } while (0) | ||
60 | |||
61 | /* | ||
62 | * Jump to P2 area. | ||
63 | * When handling TLB or caches, we need to do it from P2 area. | ||
64 | */ | ||
65 | #define jump_to_P2() \ | ||
66 | do { \ | ||
67 | unsigned long __dummy; \ | ||
68 | __asm__ __volatile__( \ | ||
69 | "mov.l 1f, %0\n\t" \ | ||
70 | "or %1, %0\n\t" \ | ||
71 | "jmp @%0\n\t" \ | ||
72 | " nop\n\t" \ | ||
73 | ".balign 4\n" \ | ||
74 | "1: .long 2f\n" \ | ||
75 | "2:" \ | ||
76 | : "=&r" (__dummy) \ | ||
77 | : "r" (0x20000000)); \ | ||
78 | } while (0) | ||
79 | |||
80 | /* | ||
81 | * Back to P1 area. | ||
82 | */ | ||
83 | #define back_to_P1() \ | ||
84 | do { \ | ||
85 | unsigned long __dummy; \ | ||
86 | ctrl_barrier(); \ | ||
87 | __asm__ __volatile__( \ | ||
88 | "mov.l 1f, %0\n\t" \ | ||
89 | "jmp @%0\n\t" \ | ||
90 | " nop\n\t" \ | ||
91 | ".balign 4\n" \ | ||
92 | "1: .long 2f\n" \ | ||
93 | "2:" \ | ||
94 | : "=&r" (__dummy)); \ | ||
95 | } while (0) | ||
96 | |||
97 | #endif /* __ASM_SH_SYSTEM_32_H */ | ||
diff --git a/include/asm-sh/system_64.h b/include/asm-sh/system_64.h new file mode 100644 index 000000000000..0e466e991f7d --- /dev/null +++ b/include/asm-sh/system_64.h | |||
@@ -0,0 +1,39 @@ | |||
1 | #ifndef __ASM_SH_SYSTEM_64_H | ||
2 | #define __ASM_SH_SYSTEM_64_H | ||
3 | |||
4 | /* | ||
5 | * include/asm-sh/system_64.h | ||
6 | * | ||
7 | * Copyright (C) 2000, 2001 Paolo Alberelli | ||
8 | * Copyright (C) 2003 Paul Mundt | ||
9 | * Copyright (C) 2004 Richard Curnow | ||
10 | * | ||
11 | * This file is subject to the terms and conditions of the GNU General Public | ||
12 | * License. See the file "COPYING" in the main directory of this archive | ||
13 | * for more details. | ||
14 | */ | ||
15 | #include <asm/processor.h> | ||
16 | |||
17 | /* | ||
18 | * switch_to() should switch tasks to task nr n, first | ||
19 | */ | ||
20 | struct task_struct *sh64_switch_to(struct task_struct *prev, | ||
21 | struct thread_struct *prev_thread, | ||
22 | struct task_struct *next, | ||
23 | struct thread_struct *next_thread); | ||
24 | |||
25 | #define switch_to(prev,next,last) \ | ||
26 | do { \ | ||
27 | if (last_task_used_math != next) { \ | ||
28 | struct pt_regs *regs = next->thread.uregs; \ | ||
29 | if (regs) regs->sr |= SR_FD; \ | ||
30 | } \ | ||
31 | last = sh64_switch_to(prev, &prev->thread, next, \ | ||
32 | &next->thread); \ | ||
33 | } while (0) | ||
34 | |||
35 | /* No segmentation.. */ | ||
36 | #define jump_to_P2() do { } while (0) | ||
37 | #define back_to_P1() do { } while (0) | ||
38 | |||
39 | #endif /* __ASM_SH_SYSTEM_64_H */ | ||
diff --git a/include/asm-sh64/system.h b/include/asm-sh64/system.h deleted file mode 100644 index be2a15ffcc55..000000000000 --- a/include/asm-sh64/system.h +++ /dev/null | |||
@@ -1,190 +0,0 @@ | |||
1 | #ifndef __ASM_SH64_SYSTEM_H | ||
2 | #define __ASM_SH64_SYSTEM_H | ||
3 | |||
4 | /* | ||
5 | * This file is subject to the terms and conditions of the GNU General Public | ||
6 | * License. See the file "COPYING" in the main directory of this archive | ||
7 | * for more details. | ||
8 | * | ||
9 | * include/asm-sh64/system.h | ||
10 | * | ||
11 | * Copyright (C) 2000, 2001 Paolo Alberelli | ||
12 | * Copyright (C) 2003 Paul Mundt | ||
13 | * Copyright (C) 2004 Richard Curnow | ||
14 | * | ||
15 | */ | ||
16 | |||
17 | #include <asm/registers.h> | ||
18 | #include <asm/processor.h> | ||
19 | |||
20 | /* | ||
21 | * switch_to() should switch tasks to task nr n, first | ||
22 | */ | ||
23 | |||
24 | typedef struct { | ||
25 | unsigned long seg; | ||
26 | } mm_segment_t; | ||
27 | |||
28 | extern struct task_struct *sh64_switch_to(struct task_struct *prev, | ||
29 | struct thread_struct *prev_thread, | ||
30 | struct task_struct *next, | ||
31 | struct thread_struct *next_thread); | ||
32 | |||
33 | #define switch_to(prev,next,last) \ | ||
34 | do {\ | ||
35 | if (last_task_used_math != next) {\ | ||
36 | struct pt_regs *regs = next->thread.uregs;\ | ||
37 | if (regs) regs->sr |= SR_FD;\ | ||
38 | }\ | ||
39 | last = sh64_switch_to(prev, &prev->thread, next, &next->thread);\ | ||
40 | } while(0) | ||
41 | |||
42 | #define nop() __asm__ __volatile__ ("nop") | ||
43 | |||
44 | #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) | ||
45 | |||
46 | extern void __xchg_called_with_bad_pointer(void); | ||
47 | |||
48 | #define mb() __asm__ __volatile__ ("synco": : :"memory") | ||
49 | #define rmb() mb() | ||
50 | #define wmb() __asm__ __volatile__ ("synco": : :"memory") | ||
51 | #define read_barrier_depends() do { } while (0) | ||
52 | |||
53 | #ifdef CONFIG_SMP | ||
54 | #define smp_mb() mb() | ||
55 | #define smp_rmb() rmb() | ||
56 | #define smp_wmb() wmb() | ||
57 | #define smp_read_barrier_depends() read_barrier_depends() | ||
58 | #else | ||
59 | #define smp_mb() barrier() | ||
60 | #define smp_rmb() barrier() | ||
61 | #define smp_wmb() barrier() | ||
62 | #define smp_read_barrier_depends() do { } while (0) | ||
63 | #endif /* CONFIG_SMP */ | ||
64 | |||
65 | #define set_mb(var, value) do { (void)xchg(&var, value); } while (0) | ||
66 | |||
67 | /* Interrupt Control */ | ||
68 | #ifndef HARD_CLI | ||
69 | #define SR_MASK_L 0x000000f0L | ||
70 | #define SR_MASK_LL 0x00000000000000f0LL | ||
71 | #else | ||
72 | #define SR_MASK_L 0x10000000L | ||
73 | #define SR_MASK_LL 0x0000000010000000LL | ||
74 | #endif | ||
75 | |||
76 | static __inline__ void local_irq_enable(void) | ||
77 | { | ||
78 | /* cli/sti based on SR.BL */ | ||
79 | unsigned long long __dummy0, __dummy1=~SR_MASK_LL; | ||
80 | |||
81 | __asm__ __volatile__("getcon " __SR ", %0\n\t" | ||
82 | "and %0, %1, %0\n\t" | ||
83 | "putcon %0, " __SR "\n\t" | ||
84 | : "=&r" (__dummy0) | ||
85 | : "r" (__dummy1)); | ||
86 | } | ||
87 | |||
88 | static __inline__ void local_irq_disable(void) | ||
89 | { | ||
90 | /* cli/sti based on SR.BL */ | ||
91 | unsigned long long __dummy0, __dummy1=SR_MASK_LL; | ||
92 | __asm__ __volatile__("getcon " __SR ", %0\n\t" | ||
93 | "or %0, %1, %0\n\t" | ||
94 | "putcon %0, " __SR "\n\t" | ||
95 | : "=&r" (__dummy0) | ||
96 | : "r" (__dummy1)); | ||
97 | } | ||
98 | |||
99 | #define local_save_flags(x) \ | ||
100 | (__extension__ ({ unsigned long long __dummy=SR_MASK_LL; \ | ||
101 | __asm__ __volatile__( \ | ||
102 | "getcon " __SR ", %0\n\t" \ | ||
103 | "and %0, %1, %0" \ | ||
104 | : "=&r" (x) \ | ||
105 | : "r" (__dummy));})) | ||
106 | |||
107 | #define local_irq_save(x) \ | ||
108 | (__extension__ ({ unsigned long long __d2=SR_MASK_LL, __d1; \ | ||
109 | __asm__ __volatile__( \ | ||
110 | "getcon " __SR ", %1\n\t" \ | ||
111 | "or %1, r63, %0\n\t" \ | ||
112 | "or %1, %2, %1\n\t" \ | ||
113 | "putcon %1, " __SR "\n\t" \ | ||
114 | "and %0, %2, %0" \ | ||
115 | : "=&r" (x), "=&r" (__d1) \ | ||
116 | : "r" (__d2));})); | ||
117 | |||
118 | #define local_irq_restore(x) do { \ | ||
119 | if ( ((x) & SR_MASK_L) == 0 ) /* dropping to 0 ? */ \ | ||
120 | local_irq_enable(); /* yes...re-enable */ \ | ||
121 | } while (0) | ||
122 | |||
123 | #define irqs_disabled() \ | ||
124 | ({ \ | ||
125 | unsigned long flags; \ | ||
126 | local_save_flags(flags); \ | ||
127 | (flags != 0); \ | ||
128 | }) | ||
129 | |||
130 | static inline unsigned long xchg_u32(volatile int * m, unsigned long val) | ||
131 | { | ||
132 | unsigned long flags, retval; | ||
133 | |||
134 | local_irq_save(flags); | ||
135 | retval = *m; | ||
136 | *m = val; | ||
137 | local_irq_restore(flags); | ||
138 | return retval; | ||
139 | } | ||
140 | |||
141 | static inline unsigned long xchg_u8(volatile unsigned char * m, unsigned long val) | ||
142 | { | ||
143 | unsigned long flags, retval; | ||
144 | |||
145 | local_irq_save(flags); | ||
146 | retval = *m; | ||
147 | *m = val & 0xff; | ||
148 | local_irq_restore(flags); | ||
149 | return retval; | ||
150 | } | ||
151 | |||
152 | static __inline__ unsigned long __xchg(unsigned long x, volatile void * ptr, int size) | ||
153 | { | ||
154 | switch (size) { | ||
155 | case 4: | ||
156 | return xchg_u32(ptr, x); | ||
157 | break; | ||
158 | case 1: | ||
159 | return xchg_u8(ptr, x); | ||
160 | break; | ||
161 | } | ||
162 | __xchg_called_with_bad_pointer(); | ||
163 | return x; | ||
164 | } | ||
165 | |||
166 | /* XXX | ||
167 | * disable hlt during certain critical i/o operations | ||
168 | */ | ||
169 | #define HAVE_DISABLE_HLT | ||
170 | void disable_hlt(void); | ||
171 | void enable_hlt(void); | ||
172 | |||
173 | |||
174 | #define smp_mb() barrier() | ||
175 | #define smp_rmb() barrier() | ||
176 | #define smp_wmb() barrier() | ||
177 | |||
178 | #ifdef CONFIG_SH_ALPHANUMERIC | ||
179 | /* This is only used for debugging. */ | ||
180 | extern void print_seg(char *file,int line); | ||
181 | #define PLS() print_seg(__FILE__,__LINE__) | ||
182 | #else /* CONFIG_SH_ALPHANUMERIC */ | ||
183 | #define PLS() | ||
184 | #endif /* CONFIG_SH_ALPHANUMERIC */ | ||
185 | |||
186 | #define PL() printk("@ <%s,%s:%d>\n",__FILE__,__FUNCTION__,__LINE__) | ||
187 | |||
188 | #define arch_align_stack(x) (x) | ||
189 | |||
190 | #endif /* __ASM_SH64_SYSTEM_H */ | ||