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#ifndef APOS_VMEM_H
#define APOS_VMEM_H
struct sp_mem;
/* arch-specific data */
#include <vmem.h>
/* common */
#include <apos/pmem.h>
#include <apos/tcb.h>
#include <apos/sp_tree.h>
struct sp_mem {
struct sp_node sp_n;
struct sp_mem *next;
struct sp_mem *prev;
char flags;
vm_t end;
vm_t start;
};
#define mem_container(ptr)\
container_of(ptr, struct sp_mem, sp_n)
#define __va(x) (((char *)(x)) + VM_DMAP - RAM_BASE)
#define __pa(x) (((char *)(x)) + RAM_BASE - VM_DMAP)
/* general overview of the different functions:
* (un)map_vmem: map one known page of physical memory to one known page of
* virtual memory
*
* (un)map_vregion: map known physical region to unknown virtual region within
* start and end
*
* (un)map_vsize: map unknown physical region to unknown virtual region
*/
/* defined by arch */
void map_vmem(struct vm_branch_t *branch,
pm_t paddr, vm_t vaddr, uint8_t flags, enum mm_order_t order);
void unmap_vmem(struct vm_branch_t *branch,
vm_t vaddr, enum mm_order_t order);
int sp_mem_init(struct sp_reg_root *r, vm_t start, size_t nums);
vm_t alloc_uvmem(struct tcb *r, size_t s, uint8_t flags);
void free_uvmem(struct tcb *r, vm_t a);
vm_t map_fill_region(struct vm_branch_t *b, vm_t start, size_t bytes, uint8_t flags);
size_t uvmem_size();
void set_uvmem_size(size_t s);
#endif /* APOS_VMEM_H */
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