b1c4ba4ab6
Due to the ABI we are using we have to use the earm architecture moniker for the build system to behave correctly. This involves then some headers to move around. There is also a few related Makefile updates as well as minor source code corrections.
111 lines
3.8 KiB
C
111 lines
3.8 KiB
C
/* $NetBSD: param.h,v 1.17 2012/02/04 17:56:16 para Exp $ */
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/*
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* Copyright (c) 1994,1995 Mark Brinicombe.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the RiscBSD team.
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* 4. The name "RiscBSD" nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _ARM_ARM32_PARAM_H_
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#define _ARM_ARM32_PARAM_H_
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#ifdef _KERNEL
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# include <machine/cpu.h>
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#endif
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/*
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* Machine dependent constants for ARM6+ processors
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*/
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/* These are defined in the Port File before it includes
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* this file. */
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#define PGSHIFT 12 /* LOG2(NBPG) */
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#define NBPG (1 << PGSHIFT) /* bytes/page */
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#define PGOFSET (NBPG-1) /* byte offset into page */
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#define NPTEPG (NBPG/(sizeof (pt_entry_t)))
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#define SSIZE 1 /* initial stack size/NBPG */
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#define SINCR 1 /* increment of stack/NBPG */
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#define UPAGES 2 /* pages of u-area */
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#define USPACE (UPAGES * NBPG) /* total size of u-area */
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#ifndef MSGBUFSIZE
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#define MSGBUFSIZE NBPG /* default message buffer size */
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#endif
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/*
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* Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
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* logical pages.
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*/
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#define NKMEMPAGES_MIN_DEFAULT ((8 * 1024 * 1024) >> PAGE_SHIFT)
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#define NKMEMPAGES_MAX_DEFAULT ((128 * 1024 * 1024) >> PAGE_SHIFT)
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/* Constants used to divide the USPACE area */
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/*
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* The USPACE area contains :
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* 1. the pcb structure for the process
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* 2. the fp context for FP emulation
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* 3. the kernel (svc) stack
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*
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* The layout of the area looks like this
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*
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* | uarea | FP context | kernel stack |
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*
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* The size of the uarea is known.
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* The size of the FP context is variable depending of the FP emulator
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* in use and whether there is hardware FP support. However we can put
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* an upper limit on it.
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* The kernel stack should be at least 4K is size.
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*
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* The stack top addresses are used to set the stack pointers. The stack bottom
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* addresses at the addresses monitored by the diagnostic code for stack overflows
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*
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*/
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#define FPCONTEXTSIZE (0x100)
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#define USPACE_SVC_STACK_TOP (USPACE)
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#define USPACE_SVC_STACK_BOTTOM (sizeof(struct pcb) + FPCONTEXTSIZE + 10)
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#define arm_btop(x) ((x) >> PGSHIFT)
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#define arm_ptob(x) ((x) << PGSHIFT)
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#define arm_trunc_page(x) ((unsigned)(x) & ~PGOFSET)
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#ifdef _KERNEL
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#ifndef _LOCORE
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void delay(unsigned);
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#define DELAY(x) delay(x)
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#endif
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#endif
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#include <arm/param.h>
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#endif /* _ARM_ARM32_PARAM_H_ */
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