diff options
Diffstat (limited to 'include/apos/vmem.h')
| -rw-r--r-- | include/apos/vmem.h | 78 |
1 files changed, 10 insertions, 68 deletions
diff --git a/include/apos/vmem.h b/include/apos/vmem.h index 8057631..bd6b89e 100644 --- a/include/apos/vmem.h +++ b/include/apos/vmem.h @@ -1,89 +1,31 @@ #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/pmem.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) -#define __page(x) ((x) / BASE_PAGE_SIZE) -#define __addr(x) ((x) * BASE_PAGE_SIZE) -#define __pages(x) (aligned((x), BASE_PAGE_SIZE) ? __page((x)) : __page((x) + BASE_PAGE_SIZE)) -#define __bytes(x) (__addr(x)) - -/* general overview of the different functions: - * internally they all work with pages, but they are called and return usable - * addresses, though within page bounds of course. - */ - -/* defined by arch */ -void map_vmem(struct vm_branch *branch, - pm_t paddr, vm_t vaddr, uint8_t flags, enum mm_order order); - -void unmap_vmem(struct vm_branch *branch, vm_t vaddr); - -int mod_vmem(struct vm_branch *branch, vm_t vaddr, pm_t paddr, uint8_t flags); -int stat_vmem(struct vm_branch *branch, vm_t vaddr, pm_t *paddr, - enum mm_order *order, uint8_t *flags); - -int setup_kernel_io(struct vm_branch *b, vm_t paddr); -void populate_root_branch(struct vm_branch *b); -struct vm_branch *init_vmem(void *fdt); - -void flush_tlb(); -void flush_tlb_all(); - -/* defined in common */ - -int sp_mem_init(struct sp_reg_root *r, vm_t start, size_t nums); - -vm_t alloc_region(struct sp_reg_root *r, size_t size, size_t *actual_size); -vm_t alloc_fixed_region(struct sp_reg_root *r, vm_t start, size_t size, size_t *actual_size); -void free_region(struct sp_reg_root *r, vm_t start); +#include <arch/vmem.h> vm_t alloc_uvmem(struct tcb *r, size_t size, uint8_t flags); vm_t alloc_fixed_uvmem(struct tcb *r, vm_t start, size_t size, uint8_t flags); -void free_uvmem(struct tcb *r, vm_t a); + +stat_t free_uvmem(struct tcb *r, vm_t a); +stat_t init_uvmem(struct tcb *r, vm_t base, vm_t top); vm_t map_fill_region(struct vm_branch *b, int (*vmem_handler)(struct vm_branch *, pm_t *, vm_t, uint8_t, enum mm_order), pm_t offset, vm_t start, size_t bytes, uint8_t flags); +stat_t alloc_uvmem_wrapper(struct vm_branch *b, pm_t *offset, vm_t vaddr, uint8_t flags, enum mm_order order); +stat_t free_uvmem_wrapper(struct vm_branch *b, pm_t *offset, vm_t vaddr, uint8_t flags, enum mm_order order); + #define map_allocd_region(b, start, bytes, flags)\ - map_fill_region(b, &alloc_mem_wrapper, 0, start, bytes, flags) + map_fill_region(b, &alloc_uvmem_wrapper, 0, start, bytes, flags) #define unmap_freed_region(b, start, bytes)\ - map_fill_region(b, &free_mem_wrapper, 0, start, bytes, 0) - -int alloc_mem_wrapper(struct vm_branch *b, pm_t *offset, vm_t vaddr, uint8_t flags, enum mm_order order); -int free_mem_wrapper(struct vm_branch *b, pm_t *offset, vm_t vaddr, uint8_t flags, enum mm_order order); + map_fill_region(b, &free_uvmem_wrapper, 0, start, bytes, 0) size_t uvmem_size(); void set_uvmem_size(size_t s); -/* not entirely sure if this is clean enough, but it'll do for now. */ -struct sp_mem *sp_used_find(struct sp_reg_root *r, vm_t start); - #endif /* APOS_VMEM_H */ |
