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Diffstat (limited to 'include/asm-mips/div64.h')
-rw-r--r-- | include/asm-mips/div64.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/include/asm-mips/div64.h b/include/asm-mips/div64.h deleted file mode 100644 index d1d699105c11..000000000000 --- a/include/asm-mips/div64.h +++ /dev/null | |||
@@ -1,110 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2000, 2004 Maciej W. Rozycki | ||
3 | * Copyright (C) 2003, 07 Ralf Baechle (ralf@linux-mips.org) | ||
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 | #ifndef _ASM_DIV64_H | ||
10 | #define _ASM_DIV64_H | ||
11 | |||
12 | #include <linux/types.h> | ||
13 | |||
14 | #if (_MIPS_SZLONG == 32) | ||
15 | |||
16 | #include <asm/compiler.h> | ||
17 | |||
18 | /* | ||
19 | * No traps on overflows for any of these... | ||
20 | */ | ||
21 | |||
22 | #define do_div64_32(res, high, low, base) ({ \ | ||
23 | unsigned long __quot32, __mod32; \ | ||
24 | unsigned long __cf, __tmp, __tmp2, __i; \ | ||
25 | \ | ||
26 | __asm__(".set push\n\t" \ | ||
27 | ".set noat\n\t" \ | ||
28 | ".set noreorder\n\t" \ | ||
29 | "move %2, $0\n\t" \ | ||
30 | "move %3, $0\n\t" \ | ||
31 | "b 1f\n\t" \ | ||
32 | " li %4, 0x21\n" \ | ||
33 | "0:\n\t" \ | ||
34 | "sll $1, %0, 0x1\n\t" \ | ||
35 | "srl %3, %0, 0x1f\n\t" \ | ||
36 | "or %0, $1, %5\n\t" \ | ||
37 | "sll %1, %1, 0x1\n\t" \ | ||
38 | "sll %2, %2, 0x1\n" \ | ||
39 | "1:\n\t" \ | ||
40 | "bnez %3, 2f\n\t" \ | ||
41 | " sltu %5, %0, %z6\n\t" \ | ||
42 | "bnez %5, 3f\n" \ | ||
43 | "2:\n\t" \ | ||
44 | " addiu %4, %4, -1\n\t" \ | ||
45 | "subu %0, %0, %z6\n\t" \ | ||
46 | "addiu %2, %2, 1\n" \ | ||
47 | "3:\n\t" \ | ||
48 | "bnez %4, 0b\n\t" \ | ||
49 | " srl %5, %1, 0x1f\n\t" \ | ||
50 | ".set pop" \ | ||
51 | : "=&r" (__mod32), "=&r" (__tmp), \ | ||
52 | "=&r" (__quot32), "=&r" (__cf), \ | ||
53 | "=&r" (__i), "=&r" (__tmp2) \ | ||
54 | : "Jr" (base), "0" (high), "1" (low)); \ | ||
55 | \ | ||
56 | (res) = __quot32; \ | ||
57 | __mod32; }) | ||
58 | |||
59 | #define do_div(n, base) ({ \ | ||
60 | unsigned long long __quot; \ | ||
61 | unsigned long __mod; \ | ||
62 | unsigned long long __div; \ | ||
63 | unsigned long __upper, __low, __high, __base; \ | ||
64 | \ | ||
65 | __div = (n); \ | ||
66 | __base = (base); \ | ||
67 | \ | ||
68 | __high = __div >> 32; \ | ||
69 | __low = __div; \ | ||
70 | __upper = __high; \ | ||
71 | \ | ||
72 | if (__high) \ | ||
73 | __asm__("divu $0, %z2, %z3" \ | ||
74 | : "=h" (__upper), "=l" (__high) \ | ||
75 | : "Jr" (__high), "Jr" (__base) \ | ||
76 | : GCC_REG_ACCUM); \ | ||
77 | \ | ||
78 | __mod = do_div64_32(__low, __upper, __low, __base); \ | ||
79 | \ | ||
80 | __quot = __high; \ | ||
81 | __quot = __quot << 32 | __low; \ | ||
82 | (n) = __quot; \ | ||
83 | __mod; }) | ||
84 | |||
85 | #endif /* (_MIPS_SZLONG == 32) */ | ||
86 | |||
87 | #if (_MIPS_SZLONG == 64) | ||
88 | |||
89 | /* | ||
90 | * Hey, we're already 64-bit, no | ||
91 | * need to play games.. | ||
92 | */ | ||
93 | #define do_div(n, base) ({ \ | ||
94 | unsigned long __quot; \ | ||
95 | unsigned int __mod; \ | ||
96 | unsigned long __div; \ | ||
97 | unsigned int __base; \ | ||
98 | \ | ||
99 | __div = (n); \ | ||
100 | __base = (base); \ | ||
101 | \ | ||
102 | __mod = __div % __base; \ | ||
103 | __quot = __div / __base; \ | ||
104 | \ | ||
105 | (n) = __quot; \ | ||
106 | __mod; }) | ||
107 | |||
108 | #endif /* (_MIPS_SZLONG == 64) */ | ||
109 | |||
110 | #endif /* _ASM_DIV64_H */ | ||