From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/powerpc/math-emu/fnmsubs.c | 58 ++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 kernel/arch/powerpc/math-emu/fnmsubs.c (limited to 'kernel/arch/powerpc/math-emu/fnmsubs.c') diff --git a/kernel/arch/powerpc/math-emu/fnmsubs.c b/kernel/arch/powerpc/math-emu/fnmsubs.c new file mode 100644 index 000000000..9021dacc0 --- /dev/null +++ b/kernel/arch/powerpc/math-emu/fnmsubs.c @@ -0,0 +1,58 @@ +#include +#include +#include + +#include +#include +#include +#include + +int +fnmsubs(void *frD, void *frA, void *frB, void *frC) +{ + FP_DECL_D(R); + FP_DECL_D(A); + FP_DECL_D(B); + FP_DECL_D(C); + FP_DECL_D(T); + FP_DECL_EX; + +#ifdef DEBUG + printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC); +#endif + + FP_UNPACK_DP(A, frA); + FP_UNPACK_DP(B, frB); + FP_UNPACK_DP(C, frC); + +#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); + printk("C: %ld %lu %lu %ld (%ld)\n", C_s, C_f1, C_f0, C_e, C_c); +#endif + + if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) || + (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF)) + FP_SET_EXCEPTION(EFLAG_VXIMZ); + + FP_MUL_D(T, A, C); + + if (B_c != FP_CLS_NAN) + B_s ^= 1; + + if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF) + FP_SET_EXCEPTION(EFLAG_VXISI); + + FP_ADD_D(R, T, B); + + if (R_c != FP_CLS_NAN) + R_s ^= 1; + +#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; +} -- cgit 1.2.3-korg