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head/sys/sys/physmem.h
Property | Old Value | New Value |
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svn:eol-style | null | native \ No newline at end of property |
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
svn:mime-type | null | text/plain \ No newline at end of property |
/*- | |||||
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
* | |||||
* Copyright (c) 2014 Ian Lepore <ian@freebsd.org> | |||||
* All rights reserved. | |||||
* | |||||
* 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. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#ifndef _SYS_PHYSMEM_H_ | |||||
#define _SYS_PHYSMEM_H_ | |||||
/* | |||||
* Routines to help configure physical ram. | |||||
* | |||||
* Multiple regions of contiguous physical ram can be added (in any order). | |||||
* | |||||
* Multiple regions of physical ram that should be excluded from crash dumps, or | |||||
* memory allocation, or both, can be added (in any order). | |||||
* | |||||
* After all early kernel init is done and it's time to configure all | |||||
* remainining non-excluded physical ram for use by other parts of the kernel, | |||||
* physmem_init_kernel_globals() processes the hardware regions and | |||||
* exclusion regions to generate the global dump_avail and phys_avail arrays | |||||
* that communicate physical ram configuration to other parts of the kernel. | |||||
*/ | |||||
#define EXFLAG_NODUMP 0x01 | |||||
#define EXFLAG_NOALLOC 0x02 | |||||
void physmem_hardware_region(uint64_t pa, uint64_t sz); | |||||
void physmem_exclude_region(vm_paddr_t pa, vm_size_t sz, uint32_t flags); | |||||
size_t physmem_avail(vm_paddr_t *avail, size_t maxavail); | |||||
void physmem_init_kernel_globals(void); | |||||
void physmem_print_tables(void); | |||||
/* | |||||
* Convenience routines for FDT. | |||||
*/ | |||||
#ifdef FDT | |||||
#include <machine/ofw_machdep.h> | |||||
static inline void | |||||
physmem_hardware_regions(struct mem_region * mrptr, int mrcount) | |||||
{ | |||||
while (mrcount--) { | |||||
physmem_hardware_region(mrptr->mr_start, mrptr->mr_size); | |||||
++mrptr; | |||||
} | |||||
} | |||||
static inline void | |||||
physmem_exclude_regions(struct mem_region * mrptr, int mrcount, | |||||
uint32_t exflags) | |||||
{ | |||||
while (mrcount--) { | |||||
physmem_exclude_region(mrptr->mr_start, mrptr->mr_size, | |||||
exflags); | |||||
++mrptr; | |||||
} | |||||
} | |||||
#endif /* FDT */ | |||||
#endif /* !_SYS_PHYSMEM_H_ */ |