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An #ifndef _LOCORE to make this file safe to include in locore.s.

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Introduce a couple of `CPU-type' helper macros to reduce the preprocessor
tangos in many a source file.
This commit is contained in:
pk 1996-02-22 21:59:08 +00:00
parent db7d722c4b
commit 2f3ad94f8d
1 changed files with 70 additions and 11 deletions
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81
sys/arch/sparc/include/param.h
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@ -1,4 +1,4 @@
/* $NetBSD: param.h,v 1.20 1996/02/16 22:13:34 pk Exp $ */
/* $NetBSD: param.h,v 1.21 1996/02/22 21:59:08 pk Exp $ */
/*
* Copyright (c) 1992, 1993
@ -52,8 +52,20 @@
#define MID_MACHINE MID_SPARC
#ifdef _KERNEL /* XXX */
#ifndef _LOCORE /* XXX */
#include <machine/cpu.h> /* XXX */
#endif /* XXX */
#endif /* XXX */
#if defined(SUN4M)
/*
* The sun4m supports multiple CPUs. Currently, we only support uniprocessor
* operations, but we map in the interrupt registers for everybody just for
* kicks. This constant affects the `fixed' virtual device addresses
* defined in <sparc/vaddrs.h>.
*/
#define NCPU_MAX 4 /* XXX: are there 4m's with > 4 CPUs? */
#endif
/*
* Round p (pointer or byte index) up to a correctly-aligned value for
@ -172,7 +184,6 @@ extern int nbpg, pgofset, pgshift;
extern vm_offset_t dvma_base;
extern vm_offset_t dvma_end;
extern struct map *dvmamap;
#endif
/*
* The dvma resource map is defined in page units, which are numbered 1 to N.
* Use these macros to convert to/from virtual addresses.
@ -183,22 +194,16 @@ extern struct map *dvmamap;
extern caddr_t kdvma_mapin __P((caddr_t, int, int));
extern caddr_t dvma_malloc __P((size_t, void *, int));
extern void dvma_free __P((caddr_t, size_t, void *));
#endif
#ifdef _KERNEL
#ifndef _LOCORE
extern void delay __P((unsigned int));
#define DELAY(n) delay(n)
#endif
#endif
#ifdef _KERNEL
#ifndef _LOCORE
extern int cputyp;
extern int cpumod;
#endif
#endif
#endif /* _LOCORE */
#endif /* _KERNEL */
/*
* Values for the cputyp variable.
*/
@ -212,3 +217,57 @@ extern int cpumod;
#define SUN4_200 0x21
#define SUN4_300 0x23
#define SUN4_400 0x24
/*
* Shorthand CPU-type macros. Enumerate all eight cases.
* Let compiler optimize away code conditionals on constants.
*/
#if defined(SUN4M) && defined(SUN4C) && defined(SUN4)
# define CPU_ISSUN4M (cputyp == CPU_SUN4M)
# define CPU_ISSUN4C (cputyp == CPU_SUN4C)
# define CPU_ISSUN4 (cputyp == CPU_SUN4)
# define CPU_ISSUN4OR4C (cputyp == CPU_SUN4 || cputyp == CPU_SUN4C)
# define CPU_ISSUN4COR4M (cputyp == CPU_SUN4C || cputyp == CPU_SUN4M)
#elif defined(SUN4M) && defined(SUN4C) && !defined(SUN4)
# define CPU_ISSUN4M (cputyp == CPU_SUN4M)
# define CPU_ISSUN4C (cputyp == CPU_SUN4C)
# define CPU_ISSUN4 (0)
# define CPU_ISSUN4OR4C (cputyp == CPU_SUN4C)
# define CPU_ISSUN4COR4M (cputyp == CPU_SUN4C || cputyp == CPU_SUN4M)
#elif defined(SUN4M) && !defined(SUN4C) && defined(SUN4)
# define CPU_ISSUN4M (cputyp == CPU_SUN4M)
# define CPU_ISSUN4C (0)
# define CPU_ISSUN4 (cputyp == CPU_SUN4)
# define CPU_ISSUN4OR4C (cputyp == CPU_SUN4)
# define CPU_ISSUN4COR4M (cputyp == CPU_SUN4M)
#elif defined(SUN4M) && !defined(SUN4C) && !defined(SUN4)
# define CPU_ISSUN4M (1)
# define CPU_ISSUN4C (0)
# define CPU_ISSUN4 (0)
# define CPU_ISSUN4OR4C (0)
# define CPU_ISSUN4COR4M (1)
#elif !defined(SUN4M) && defined(SUN4C) && defined(SUN4)
# define CPU_ISSUN4M (0)
# define CPU_ISSUN4C (cputyp == CPU_SUN4C)
# define CPU_ISSUN4 (cputyp == CPU_SUN4)
# define CPU_ISSUN4OR4C (1)
# define CPU_ISSUN4COR4M (cputyp == CPU_SUN4C)
#elif !defined(SUN4M) && defined(SUN4C) && !defined(SUN4)
# define CPU_ISSUN4M (0)
# define CPU_ISSUN4C (1)
# define CPU_ISSUN4 (0)
# define CPU_ISSUN4OR4C (1)
# define CPU_ISSUN4COR4M (1)
#elif !defined(SUN4M) && !defined(SUN4C) && defined(SUN4)
# define CPU_ISSUN4M (0)
# define CPU_ISSUN4C (0)
# define CPU_ISSUN4 (1)
# define CPU_ISSUN4OR4C (1)
# define CPU_ISSUN4COR4M (0)
#elif !defined(SUN4M) && !defined(SUN4C) && !defined(SUN4)
# define CPU_ISSUN4M (0)
# define CPU_ISSUN4C (0)
# define CPU_ISSUN4 (0)
# define CPU_ISSUN4OR4C (0)
# define CPU_ISSUN4COR4M (0)
#endif