From 1f523bf36734375dd6e986c9f47f010d00a8caca Mon Sep 17 00:00:00 2001 From: Kusanagi Kouichi Date: Fri, 5 Nov 2010 20:04:42 +0900 Subject: [PATCH] x86, pvclock: Remove leftover scale_delta() function Commit 92580d64e16402762e2acc3022f065397c780425 ("x86: pvclock: Move scale_delta into common header") forgot to remove scale_delta. Signed-off-by: Kusanagi Kouichi Cc: Zachary Amsden Cc: Marcelo Tosatti Cc: Glauber Costa LKML-Reference: <20101105110444.BAF6D6FC03B@msa105.auone-net.jp> Signed-off-by: Ingo Molnar --- arch/x86/kernel/pvclock.c | 38 -------------------------------------- 1 file changed, 38 deletions(-) diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index bab3b9e6f66..008b91eefa1 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -41,44 +41,6 @@ void pvclock_set_flags(u8 flags) valid_flags = flags; } -/* - * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction, - * yielding a 64-bit result. - */ -static inline u64 scale_delta(u64 delta, u32 mul_frac, int shift) -{ - u64 product; -#ifdef __i386__ - u32 tmp1, tmp2; -#endif - - if (shift < 0) - delta >>= -shift; - else - delta <<= shift; - -#ifdef __i386__ - __asm__ ( - "mul %5 ; " - "mov %4,%%eax ; " - "mov %%edx,%4 ; " - "mul %5 ; " - "xor %5,%5 ; " - "add %4,%%eax ; " - "adc %5,%%edx ; " - : "=A" (product), "=r" (tmp1), "=r" (tmp2) - : "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (mul_frac) ); -#elif defined(__x86_64__) - __asm__ ( - "mul %%rdx ; shrd $32,%%rdx,%%rax" - : "=a" (product) : "0" (delta), "d" ((u64)mul_frac) ); -#else -#error implement me! -#endif - - return product; -} - static u64 pvclock_get_nsec_offset(struct pvclock_shadow_time *shadow) { u64 delta = native_read_tsc() - shadow->tsc_timestamp; -- 2.11.4.GIT