Differential D18894 Diff 52999 sys/i386/include/param.h

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sys/i386/include/param.h

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	/*			/*
	* CACHE_LINE_SIZE is the compile-time maximum cache line size for an			* CACHE_LINE_SIZE is the compile-time maximum cache line size for an
	* architecture. It should be used with appropriate caution.			* architecture. It should be used with appropriate caution.
	*/			*/
	#define CACHE_LINE_SHIFT 6			#define CACHE_LINE_SHIFT 6
	#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)			#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)

	#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */			#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */
	#define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */			#define PAGE_SIZE (1 << PAGE_SHIFT) /* bytes/page */
	#define PAGE_MASK (PAGE_SIZE-1)			#define PAGE_MASK (PAGE_SIZE - 1)
	#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))			#define NPTEPG (PAGE_SIZE / sizeof(pt_entry_t))

	#if defined(PAE) \|\| defined(PAE_TABLES)			/* Size in bytes of the page directory */
	#define NPGPTD 4
	#define PDRSHIFT 21 /* LOG2(NBPDR) */
	#define NPGPTD_SHIFT 9
	#else
	#define NPGPTD 1
	#define PDRSHIFT 22 /* LOG2(NBPDR) */
	#define NPGPTD_SHIFT 10
	#endif

	#define NBPTD (NPGPTD<<PAGE_SHIFT)			#define NBPTD (NPGPTD << PAGE_SHIFT)
	#define NPDEPTD (NBPTD/(sizeof (pd_entry_t)))			/* Number of PDEs in page directory, 2048 for PAE, 1024 for non-PAE */
	#define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t)))			#define NPDEPTD (NBPTD / sizeof(pd_entry_t))
	#define NBPDR (1<<PDRSHIFT) /* bytes/page dir */			/* Number of PDEs in one page of the page directory, 512 vs. 1024 */
				#define NPDEPG (PAGE_SIZE / sizeof(pd_entry_t))
	#define PDRMASK (NBPDR-1)			#define PDRMASK (NBPDR - 1)
				#ifndef PDRSHIFT
				#define PDRSHIFT i386_pmap_PDRSHIFT
				#endif
				#ifndef NBPDR
				#define NBPDR (1 << PDRSHIFT) /* bytes/page dir */
				#endif

	#define MAXPAGESIZES 2 /* maximum number of supported page sizes */			#define MAXPAGESIZES 2 /* maximum number of supported page sizes */

	#define IOPAGES 2 /* pages of i/o permission bitmap */			#define IOPAGES 2 /* pages of i/o permission bitmap */

	#ifndef KSTACK_PAGES			#ifndef KSTACK_PAGES
	#define KSTACK_PAGES 4 /* Includes pcb! */			#define KSTACK_PAGES 4 /* Includes pcb! */
	#endif			#endif
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