85a50ea3f4
Replace the body of the MIT license with a reference to the LICENSE file and a URL with the MIT license. Replaces 20 something lines with 3. No functional change.
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/*
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* Copyright (c) 2015 Google, Inc. All rights reserved
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*
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* Use of this source code is governed by a MIT-style
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* license that can be found in the LICENSE file or at
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* https://opensource.org/licenses/MIT
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*/
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#ifndef __KERNEL_NOVM_H
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#define __KERNEL_NOVM_H
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#include <stddef.h>
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#include <stdlib.h>
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#include <arch.h>
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#define PAGE_ALIGN(x) ALIGN(x, PAGE_SIZE)
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#define IS_PAGE_ALIGNED(x) IS_ALIGNED(x, PAGE_SIZE)
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// arena bitmaps for novm_alloc_pages
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#define NOVM_ARENA_ANY (UINT32_MAX)
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#define NOVM_ARENA_MAIN (1<<0)
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#define NOVM_ARENA_SECONDARY (~NOVM_ARENA_MAIN)
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void *novm_alloc_pages(size_t pages, uint32_t arena_bitmap);
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void novm_free_pages(void *address, size_t pages);
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status_t novm_alloc_specific_pages(void *address, size_t pages);
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// You can call this once and it will give you some possibly unaligned memory
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// that would otherwise go to waste. The memory can't be freed.
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void *novm_alloc_unaligned(size_t *size_return);
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void novm_add_arena(const char *name, uintptr_t arena_start, uintptr_t arena_size);
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struct page_range {
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void *address;
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size_t size;
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};
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int novm_get_arenas(struct page_range *ranges, int number_of_ranges);
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#endif
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