98bb5304e1
to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/*-
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* Copyright (c) 2001 Jake Burkholder.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* $FreeBSD$
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*/
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#ifndef _MACHINE_PMAP_H_
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#define _MACHINE_PMAP_H_
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struct md_page {
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};
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struct pmap {
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struct pmap_statistics pm_stats;
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};
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typedef struct pmap *pmap_t;
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extern struct pmap __kernel_pmap;
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#define kernel_pmap (&__kernel_pmap)
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#define pmap_resident_count(pm) (pm->pm_stats.resident_count)
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#ifdef _KERNEL
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vm_offset_t pmap_kextract(vm_offset_t va);
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extern vm_offset_t avail_start;
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extern vm_offset_t avail_end;
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extern vm_offset_t phys_avail[];
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extern vm_offset_t virtual_avail;
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extern vm_offset_t virtual_end;
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#endif
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#endif /* !_MACHINE_PMAP_H_ */
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