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- /*
- * Routines common for drivers handling Enhanced Speedstep Technology
- * Copyright (C) 2004 Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
- *
- * 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;
- }
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