From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- .../i386/kernel/cpu/cpufreq/speedstep-est-common.h | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 arch/i386/kernel/cpu/cpufreq/speedstep-est-common.h (limited to 'arch/i386/kernel/cpu/cpufreq/speedstep-est-common.h') diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-est-common.h b/arch/i386/kernel/cpu/cpufreq/speedstep-est-common.h new file mode 100644 index 00000000000..5ce995c9d86 --- /dev/null +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-est-common.h @@ -0,0 +1,25 @@ +/* + * Routines common for drivers handling Enhanced Speedstep Technology + * Copyright (C) 2004 Venkatesh Pallipadi + * + * Licensed under the terms of the GNU GPL License version 2 -- see + * COPYING for details. + */ + +static inline int is_const_loops_cpu(unsigned int cpu) +{ + struct cpuinfo_x86 *c = cpu_data + cpu; + + if (c->x86_vendor != X86_VENDOR_INTEL || !cpu_has(c, X86_FEATURE_EST)) + return 0; + + /* + * on P-4s, the TSC runs with constant frequency independent of cpu freq + * when we use EST + */ + if (c->x86 == 0xf) + return 1; + + return 0; +} + -- cgit v1.2.3