diff options
Diffstat (limited to 'sys/include/vm')
| -rw-r--r-- | sys/include/vm/physmem.h | 39 | ||||
| -rw-r--r-- | sys/include/vm/vm.h | 4 |
2 files changed, 43 insertions, 0 deletions
diff --git a/sys/include/vm/physmem.h b/sys/include/vm/physmem.h new file mode 100644 index 0000000..196a9a8 --- /dev/null +++ b/sys/include/vm/physmem.h @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * 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. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. + */ + +#ifndef _VM_PHYSMEM_H_ +#define _VM_PHYSMEM_H_ + +#include <sys/types.h> + +void vm_physmem_init(void); +uintptr_t vm_alloc_frame(size_t count); +void vm_free_frame(uintptr_t base, size_t count); + +#endif /* !_VM_PHYSMEM_H_ */ diff --git a/sys/include/vm/vm.h b/sys/include/vm/vm.h index a4a073f..a2caa8c 100644 --- a/sys/include/vm/vm.h +++ b/sys/include/vm/vm.h @@ -39,4 +39,8 @@ extern volatile struct limine_hhdm_request g_hhdm_request; #define PHYS_TO_VIRT(phys) (void *)((uintptr_t)phys + VM_HIGHER_HALF) #define VIRT_TO_PHYS(virt) ((uintptr_t)virt - VM_HIGHER_HALF) +#define DEFAULT_PAGESIZE 4096 + +void vm_init(void); + #endif |