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-rw-r--r--arch/arm/vfp/vfpsingle.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/arm/vfp/vfpsingle.c b/arch/arm/vfp/vfpsingle.c
index 6849fe35cb2e..14dd696ddeb1 100644
--- a/arch/arm/vfp/vfpsingle.c
+++ b/arch/arm/vfp/vfpsingle.c
@@ -32,6 +32,8 @@
32 */ 32 */
33#include <linux/kernel.h> 33#include <linux/kernel.h>
34#include <linux/bitops.h> 34#include <linux/bitops.h>
35
36#include <asm/div64.h>
35#include <asm/ptrace.h> 37#include <asm/ptrace.h>
36#include <asm/vfp.h> 38#include <asm/vfp.h>
37 39
@@ -303,7 +305,11 @@ u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand)
303 if (z <= a) 305 if (z <= a)
304 return (s32)a >> 1; 306 return (s32)a >> 1;
305 } 307 }
306 return (u32)(((u64)a << 31) / z) + (z >> 1); 308 {
309 u64 v = (u64)a << 31;
310 do_div(v, z);
311 return v + (z >> 1);
312 }
307} 313}
308 314
309static u32 vfp_single_fsqrt(int sd, int unused, s32 m, u32 fpscr) 315static u32 vfp_single_fsqrt(int sd, int unused, s32 m, u32 fpscr)
@@ -1107,7 +1113,11 @@ static u32 vfp_single_fdiv(int sd, int sn, s32 m, u32 fpscr)
1107 vsn.significand >>= 1; 1113 vsn.significand >>= 1;
1108 vsd.exponent++; 1114 vsd.exponent++;
1109 } 1115 }
1110 vsd.significand = ((u64)vsn.significand << 32) / vsm.significand; 1116 {
1117 u64 significand = (u64)vsn.significand << 32;
1118 do_div(significand, vsm.significand);
1119 vsd.significand = significand;
1120 }
1111 if ((vsd.significand & 0x3f) == 0) 1121 if ((vsd.significand & 0x3f) == 0)
1112 vsd.significand |= ((u64)vsm.significand * vsd.significand != (u64)vsn.significand << 32); 1122 vsd.significand |= ((u64)vsm.significand * vsd.significand != (u64)vsn.significand << 32);
1113 1123