49439183ce
The arm_physmem interface found in arm's MD code provides a convenient
set of routines for adding/excluding physical memory regions and
initializing important kernel globals such as Maxmem, realmem,
phys_avail[], and dump_avail[]. It is especially convenient for FDT
systems, since we can use FDT parsing functions and pass the result
directly to one of these physmem routines. This interface is already in
use on arm and arm64, and can be used to simplify this early
initialization on RISC-V as well.
This requires only a couple trivial changes:
- Move arm_physmem_kernel_addr to arm/machdep.c. It is unused on arm64,
and manipulated entirely in arm MD code.
- Convert arm32_btop/arm64_btop to atop. This is equivalently defined
on all architectures.
- Drop the "arm" prefix.
Reviewed by: manu, emaste ("looks reasonable")
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D24153
82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1995 Bruce D. Evans.
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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. Neither the name of the author nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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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* from: FreeBSD: src/sys/i386/include/md_var.h,v 1.40 2001/07/12
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* $FreeBSD$
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*/
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#ifndef _MACHINE_MD_VAR_H_
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#define _MACHINE_MD_VAR_H_
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extern long Maxmem;
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extern char sigcode[];
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extern int szsigcode;
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extern uint32_t *vm_page_dump;
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extern int vm_page_dump_size;
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extern u_long elf_hwcap;
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extern u_long elf_hwcap2;
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extern vm_paddr_t arm_physmem_kernaddr;
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extern int (*_arm_memcpy)(void *, void *, int, int);
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extern int (*_arm_bzero)(void *, int, int);
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extern int _min_memcpy_size;
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extern int _min_bzero_size;
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#define DST_IS_USER 0x1
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#define SRC_IS_USER 0x2
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#define IS_PHYSICAL 0x4
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enum cpu_class {
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CPU_CLASS_NONE,
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CPU_CLASS_ARM9TDMI,
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CPU_CLASS_ARM9ES,
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CPU_CLASS_ARM9EJS,
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CPU_CLASS_ARM10E,
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CPU_CLASS_ARM10EJ,
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CPU_CLASS_CORTEXA,
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CPU_CLASS_KRAIT,
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CPU_CLASS_XSCALE,
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CPU_CLASS_ARM11J,
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CPU_CLASS_MARVELL
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};
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extern enum cpu_class cpu_class;
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struct dumperinfo;
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extern int busdma_swi_pending;
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void busdma_swi(void);
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void dump_add_page(vm_paddr_t);
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void dump_drop_page(vm_paddr_t);
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int minidumpsys(struct dumperinfo *);
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extern uint32_t initial_fpscr;
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#endif /* !_MACHINE_MD_VAR_H_ */
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