| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #include <linux/kernel.h> |
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| 3 | #include <linux/sched.h> |
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| 4 | #include <linux/types.h> |
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| 5 | #include <asm/byteorder.h> |
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| 6 | #include <asm/fpu.h> |
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| 7 | |
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| 8 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |
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| 9 | ((sl) = (al) + (bl), (sh) = (ah) + (bh) + ((sl) < (al))) |
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| 10 | |
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| 11 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ |
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| 12 | ((sl) = (al) - (bl), (sh) = (ah) - (bh) - ((al) < (bl))) |
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| 13 | |
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| 14 | #define umul_ppmm(wh, wl, u, v) \ |
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| 15 | __asm__ ("mulq %2,%3,%1; umulh %2,%3,%0" \ |
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| 16 | : "=r" ((UDItype)(wh)), \ |
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| 17 | "=&r" ((UDItype)(wl)) \ |
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| 18 | : "r" ((UDItype)(u)), \ |
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| 19 | "r" ((UDItype)(v))) |
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| 20 | |
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| 21 | #define udiv_qrnnd(q, r, n1, n0, d) \ |
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| 22 | do { unsigned long __r; \ |
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| 23 | (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \ |
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| 24 | (r) = __r; \ |
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| 25 | } while (0) |
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| 26 | extern unsigned long __udiv_qrnnd (unsigned long *, unsigned long, |
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| 27 | unsigned long , unsigned long); |
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| 28 | |
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| 29 | #define UDIV_NEEDS_NORMALIZATION 1 |
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| 30 | |
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| 31 | #define abort() goto bad_insn |
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| 32 | |
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| 33 | #ifndef __LITTLE_ENDIAN |
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| 34 | #define __LITTLE_ENDIAN -1 |
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| 35 | #endif |
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| 36 | #define __BYTE_ORDER __LITTLE_ENDIAN |
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| 37 | |
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