X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/cd09c4b222e4ddf45a42522563ae2471a829d1c8..69777bdcab284335651a8002e2896f3862fa423d:/lunaix-os/includes/lunaix/mm/page.h diff --git a/lunaix-os/includes/lunaix/mm/page.h b/lunaix-os/includes/lunaix/mm/page.h deleted file mode 100644 index c981839..0000000 --- a/lunaix-os/includes/lunaix/mm/page.h +++ /dev/null @@ -1,62 +0,0 @@ -#ifndef __LUNAIX_PAGE_H -#define __LUNAIX_PAGE_H -#include -#include - -#define PG_MAX_ENTRIES 1024U -#define PG_LAST_TABLE PG_MAX_ENTRIES - 1 -#define PG_FIRST_TABLE 0 - -#define P2V(paddr) ((uintptr_t)(paddr) + HIGHER_HLF_BASE) -#define V2P(vaddr) ((uintptr_t)(vaddr) - HIGHER_HLF_BASE) - -#define PG_ALIGN(addr) ((uintptr_t)(addr) & 0xFFFFF000UL) - -#define PD_INDEX(vaddr) (((uintptr_t)(vaddr) & 0xFFC00000UL) >> 22) -#define PT_INDEX(vaddr) (((uintptr_t)(vaddr) & 0x003FF000UL) >> 12) -#define PG_OFFSET(vaddr) ((uintptr_t)(vaddr) & 0x00000FFFUL) - -#define GET_PT_ADDR(pde) PG_ALIGN(pde) -#define GET_PG_ADDR(pte) PG_ALIGN(pte) - -#define PG_DIRTY(pte) ((pte & (1 << 6)) >> 6) -#define PG_ACCESSED(pte) ((pte & (1 << 5)) >> 5) - -#define IS_CACHED(entry) ((entry & 0x1)) - -#define PG_PRESENT (0x1) -#define PG_WRITE (0x1 << 1) -#define PG_ALLOW_USER (0x1 << 2) -#define PG_WRITE_THROUGHT (1 << 3) -#define PG_DISABLE_CACHE (1 << 4) -#define PG_PDE_4MB (1 << 7) - -#define PDE(flags, pt_addr) (PG_ALIGN(pt_addr) | ((flags) & 0xfff)) -#define PTE(flags, pg_addr) (PG_ALIGN(pg_addr) | ((flags) & 0xfff)) - -#define V_ADDR(pd, pt, offset) ((pd) << 22 | (pt) << 12 | (offset)) -#define P_ADDR(ppn, offset) ((ppn << 12) | (offset)) - -// 用于对PD进行循环映射,因为我们可能需要对PD进行频繁操作,我们在这里禁用TLB缓存 -#define PG_PREM_R PG_PRESENT -#define PG_PREM_RW PG_PRESENT | PG_WRITE -#define PG_PREM_UR PG_PRESENT | PG_ALLOW_USER -#define PG_PREM_URW PG_PRESENT | PG_WRITE | PG_ALLOW_USER -#define T_SELF_REF_PERM PG_PREM_RW | PG_DISABLE_CACHE - - -// 页目录的虚拟基地址,可以用来访问到各个PDE -#define PTD_BASE_VADDR 0xFFFFF000U - -// 页表的虚拟基地址,可以用来访问到各个PTE -#define PT_BASE_VADDR 0xFFC00000U - -// 用来获取特定的页表的虚拟地址 -#define PT_VADDR(pd_offset) (PT_BASE_VADDR | (pd_offset << 12)) - -typedef unsigned int ptd_t; -typedef unsigned int pt_t; -typedef unsigned int pt_attr; - - -#endif /* __LUNAIX_PAGE_H */