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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/math-emu/fmuls.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
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 <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> 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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/powerpc/math-emu/fmuls.c')
-rw-r--r--kernel/arch/powerpc/math-emu/fmuls.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/math-emu/fmuls.c b/kernel/arch/powerpc/math-emu/fmuls.c
new file mode 100644
index 000000000..f5ad5c9c7
--- /dev/null
+++ b/kernel/arch/powerpc/math-emu/fmuls.c
@@ -0,0 +1,46 @@
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+
+#include <asm/sfp-machine.h>
+#include <math-emu/soft-fp.h>
+#include <math-emu/double.h>
+#include <math-emu/single.h>
+
+int
+fmuls(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) [%08lx.%08lx %lx]\n",
+ A_s, A_f1, A_f0, A_e, A_c, A_f1, A_f0, A_e + 1023);
+ printk("B: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
+ B_s, B_f1, B_f0, B_e, B_c, B_f1, B_f0, B_e + 1023);
+#endif
+
+ if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
+ (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
+ FP_SET_EXCEPTION(EFLAG_VXIMZ);
+
+ FP_MUL_D(R, A, B);
+
+#ifdef DEBUG
+ printk("D: %ld %lu %lu %ld (%ld) [%08lx.%08lx %lx]\n",
+ R_s, R_f1, R_f0, R_e, R_c, R_f1, R_f0, R_e + 1023);
+#endif
+
+ __FP_PACK_DS(frD, R);
+
+ return FP_CUR_EXCEPTIONS;
+}