Release 4.14 arch/powerpc/math-emu/fdivs.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/uaccess.h>

#include <asm/sfp-machine.h>
#include <math-emu/soft-fp.h>
#include <math-emu/double.h>
#include <math-emu/single.h>


int

fdivs(void *frD, void *frA, void *frB)
{
	FP_DECL_D(A);
	FP_DECL_D(B);
	FP_DECL_D(R);
	FP_DECL_EX;

#ifdef DEBUG
	printk("%s: %p %p %p\n", __func__, frD, frA, frB);
#endif

	FP_UNPACK_DP(A, frA);
	FP_UNPACK_DP(B, frB);

#ifdef DEBUG
	printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
#endif

	if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) {
		FP_SET_EXCEPTION(EFLAG_VXZDZ);
#ifdef DEBUG
		printk("%s: FPSCR_VXZDZ raised\n", __func__);
#endif
	}
	if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) {
		FP_SET_EXCEPTION(EFLAG_VXIDI);
#ifdef DEBUG
		printk("%s: FPSCR_VXIDI raised\n", __func__);
#endif
	}

	if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) {
		FP_SET_EXCEPTION(EFLAG_DIVZERO);
		if (__FPU_TRAP_P(EFLAG_DIVZERO))
			return FP_CUR_EXCEPTIONS;
	}

	FP_DIV_D(R, A, B);

#ifdef DEBUG
	printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
#endif

	__FP_PACK_DS(frD, R);

	return FP_CUR_EXCEPTIONS;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
205
91.11%
1
25.00%
Liu Yu
10
4.44%
1
25.00%
Kumar Gala
7
3.11%
1
25.00%
Harvey Harrison
3
1.33%
1
25.00%
Total
225
100.00%
4
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
219
88.66%
1
16.67%
Kumar Gala
13
5.26%
1
16.67%
Liu Yu
10
4.05%
1
16.67%
Harvey Harrison
3
1.21%
1
16.67%
Linus Torvalds
1
0.40%
1
16.67%
Greg Kroah-Hartman
1
0.40%
1
16.67%
Total
247
100.00%
6
100.00%
Directory: arch/powerpc/math-emu

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