diff options
Diffstat (limited to 'kernel/include')
| -rw-r--r-- | kernel/include/region.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/kernel/include/region.h b/kernel/include/region.h index bc26bfe..4bc8917 100644 --- a/kernel/include/region.h +++ b/kernel/include/region.h @@ -8,9 +8,10 @@ // Region types #define REGION_T_KERNEL_BASE 0x00000001 // base kernel code & data #define REGION_T_DESCRIPTORS 0x00000002 // contains more region descriptors -#define REGION_T_PAGETABLE 0x00000010 // used to map a page table/page directory #define REGION_T_CORE_HEAP 0x00000100 // used for the core kernel heap -#define REGION_T_PROC_HEAP 0x00000200 // used for a kernel process' heap +#define REGION_T_KPROC_HEAP 0x00000200 // used for a kernel process' heap +#define REGION_T_KPROC_STACK 0x00000400 // used for a kernel process' heap +#define REGION_T_PROC_KSTACK 0x00000800 // used for a process' kernel heap #define REGION_T_CACHE 0x00001000 // used for cache #define REGION_T_HW 0x00002000 // used for hardware access @@ -30,4 +31,16 @@ void* region_alloc(size_t size, uint32_t type, page_fault_handler_t pf); // retu region_info_t *find_region(void* addr); void region_free(void* addr); +// some usefull PF handlers +// stack_pf_handler : allocates new frames and panics on access to first page of region (stack overflow) +void stack_pf_handler(pagedir_t *pd, struct region_info *r, void* addr); +// default_allocator_pf_handler : just allocates new frames on page faults +void default_allocator_pf_handler(pagedir_t *pd, struct region_info *r, void* addr); + +// some functions for freeing regions and frames +// region_free_unmap_free : deletes a region and frees all frames that were mapped in it +void region_free_unmap_free(void* addr); +// region_free_unmap : deletes a region and unmaps all frames that were mapped in it, without freeing them +void region_free_unmap(void* addr); + void dbg_print_region_stats(); |