Author: neel
Date: Thu Mar 4 05:37:19 2010
New Revision: 204690
URL: http://svn.freebsd.org/changeset/base/204690
Log:
Remove some unused cruft.
Modified:
head/sys/mips/include/cpuinfo.h
Modified: head/sys/mips/include/cpuinfo.h
==============================================================================
--- head/sys/mips/include/cpuinfo.h Thu Mar 4 05:23:08 2010
(r204689)
+++ head/sys/mips/include/cpuinfo.h Thu Mar 4 05:37:19 2010
(r204690)
@@ -71,53 +71,6 @@ struct mips_cpuinfo {
extern struct mips_cpuinfo cpuinfo;
-/* TODO: Merge above structure with NetBSD's below. */
-
-struct cpu_info {
-#ifdef notyet
- struct schedstate_percpu ci_schedstate; /* scheduler state */
-#endif
- u_long ci_cpu_freq; /* CPU frequency */
- u_long ci_cycles_per_hz; /* CPU freq / hz */
- u_long ci_divisor_delay; /* for delay/DELAY */
- u_long ci_divisor_recip; /* scaled reciprocal of previous;
- see below */
-#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
- u_long ci_spin_locks; /* # of spin locks held */
- u_long ci_simple_locks; /* # of simple locks held */
-#endif
-};
-
-/*
- * To implement a more accurate microtime using the CP0 COUNT register
- * we need to divide that register by the number of cycles per MHz.
- * But...
- *
- * DIV and DIVU are expensive on MIPS (eg 75 clocks on the R4000). MULT
- * and MULTU are only 12 clocks on the same CPU.
- *
- * The strategy we use is to calculate the reciprical of cycles per MHz,
- * scaled by 1<<32. Then we can simply issue a MULTU and pluck of the
- * HI register and have the results of the division.
- */
-#define MIPS_SET_CI_RECIPRICAL(cpu)
\
-do { \
- KASSERT((cpu)->ci_divisor_delay != 0, ("divisor delay"));
\
- (cpu)->ci_divisor_recip = 0x100000000ULL / (cpu)->ci_divisor_delay; \
-} while (0)
-
-#define MIPS_COUNT_TO_MHZ(cpu, count, res)
\
- __asm __volatile ("multu %1,%2 ; mfhi %0" \
- : "=r"((res)) : "r"((count)), "r"((cpu)->ci_divisor_recip))
-
-
-extern struct cpu_info cpu_info_store;
-
-#if 0
-#define curcpu() (&cpu_info_store)
-#define cpu_number() (0)
-#endif
-
#endif /* !LOCORE */
#endif /* _KERNEL */
#endif /* _CPUINFO_H_ */
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