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Diffstat (limited to 'sys/powerpc/include/param.h')
| -rw-r--r-- | sys/powerpc/include/param.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/sys/powerpc/include/param.h b/sys/powerpc/include/param.h new file mode 100644 index 000000000000..e79e92f76ec2 --- /dev/null +++ b/sys/powerpc/include/param.h @@ -0,0 +1,150 @@ +/*- + * SPDX-License-Identifier: BSD-4-Clause + * + * Copyright (c) 2001 David E. O'Brien + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _POWERPC_INCLUDE_PARAM_H_ +#define _POWERPC_INCLUDE_PARAM_H_ + +/* + * Machine dependent constants for PowerPC + */ + +#include <machine/_align.h> + +#ifndef MACHINE +#define MACHINE "powerpc" +#endif +#ifndef MACHINE_ARCH +#ifdef __powerpc64__ +#if defined(__LITTLE_ENDIAN__) +#define MACHINE_ARCH "powerpc64le" +#else +#define MACHINE_ARCH "powerpc64" +#endif +#else +#ifdef __SPE__ +#define MACHINE_ARCH "powerpcspe" +#else +#define MACHINE_ARCH "powerpc" +#endif +#endif +#endif +#define MID_MACHINE MID_POWERPC +#ifdef __powerpc64__ +#ifndef MACHINE_ARCH32 +#define MACHINE_ARCH32 "powerpc" +#endif +#endif + +#ifdef SMP +#ifndef MAXCPU +#define MAXCPU 256 +#endif +#else +#define MAXCPU 1 +#endif + +#ifndef MAXMEMDOM +#define MAXMEMDOM 8 +#endif + +#define ALIGNBYTES _ALIGNBYTES +#define ALIGN(p) _ALIGN(p) +/* + * ALIGNED_POINTER is a boolean macro that checks whether an address + * is valid to fetch data elements of type t from on this architecture. + * This does not reflect the optimal alignment, just the possibility + * (within reasonable limits). + */ +#define ALIGNED_POINTER(p, t) ((((uintptr_t)(p)) & (sizeof (t) - 1)) == 0) + +/* + * CACHE_LINE_SIZE is the compile-time maximum cache line size for an + * architecture. It should be used with appropriate caution. + */ +#define CACHE_LINE_SHIFT 7 +#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) + +#define PAGE_SHIFT 12 +#define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */ +#define PAGE_MASK (PAGE_SIZE - 1) +#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) +#define NPDEPG (PAGE_SIZE/(sizeof (pt_entry_t))) + +#define L1_PAGE_SIZE_SHIFT 39 +#define L1_PAGE_SIZE (1UL<<L1_PAGE_SIZE_SHIFT) +#define L1_PAGE_MASK (L1_PAGE_SIZE-1) + +#define L2_PAGE_SIZE_SHIFT 30 +#define L2_PAGE_SIZE (1UL<<L2_PAGE_SIZE_SHIFT) +#define L2_PAGE_MASK (L2_PAGE_SIZE-1) + +#define L3_PAGE_SIZE_SHIFT 21 +#define L3_PAGE_SIZE (1UL<<L3_PAGE_SIZE_SHIFT) +#define L3_PAGE_MASK (L3_PAGE_SIZE-1) + +#define MAXPAGESIZES 3 /* maximum number of supported page sizes */ + +#define RELOCATABLE_KERNEL 1 /* kernel may relocate during startup */ + +#ifndef KSTACK_PAGES +#ifdef __powerpc64__ +#define KSTACK_PAGES 12 /* includes pcb */ +#else +#define KSTACK_PAGES 4 /* includes pcb */ +#endif +#endif +#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ +#define USPACE (kstack_pages * PAGE_SIZE) /* total size of pcb */ + +#define COPYFAULT 0x1 +#define FUSUFAULT 0x2 + +/* + * Mach derived conversion macros + */ +#define trunc_2mpage(x) ((unsigned long)(x) & ~L3_PAGE_MASK) +#define round_2mpage(x) ((((unsigned long)(x)) + L3_PAGE_MASK) & ~L3_PAGE_MASK) +#define trunc_1gpage(x) ((unsigned long)(x) & ~L2_PAGE_MASK) + +#define powerpc_btop(x) ((x) >> PAGE_SHIFT) +#define powerpc_ptob(x) ((x) << PAGE_SHIFT) + +#define btoc(x) ((vm_offset_t)(((x)+PAGE_MASK)>>PAGE_SHIFT)) + +#endif /* !_POWERPC_INCLUDE_PARAM_H_ */ |