feat: ability to evict dnode and inode cache

[lunaix-os.git] / lunaix-os / includes / lunaix / mm / vmm.h

diff --git a/lunaix-os/includes/lunaix/mm/vmm.h b/lunaix-os/includes/lunaix/mm/vmm.h
index bd074c54d41b2466e1455fa7c0e8aee365d6384a..182058bf9835b444d9d56e8a5dbdac25fe1b2528 100644 (file)
--- a/lunaix-os/includes/lunaix/mm/vmm.h
+++ b/lunaix-os/includes/lunaix/mm/vmm.h
@@ -18,6 +18,12 @@
  */
 #define VMAP_NOMAP 2
 
+/**
+ * @brief 规定下一个可用页映射应当限定在指定的4MB地址空间内
+ *
+ */
+#define VALLOC_PDE 1
+
 /**
  * @brief 初始化虚拟内存管理器
  *
@@ -97,4 +103,23 @@ vmm_mount_pd(uintptr_t mnt, void* pde);
 void*
 vmm_unmount_pd(uintptr_t mnt);
 
+void*
+vmm_ioremap(uintptr_t paddr, size_t size);
+
+void*
+vmm_next_free(uintptr_t start, int options);
+
+/**
+ * @brief 将连续的物理地址空间映射到内核虚拟地址空间
+ *
+ * @param paddr 物理地址空间的基地址
+ * @param size 物理地址空间的大小
+ * @return void*
+ */
+void*
+vmm_vmap(uintptr_t paddr, size_t size, pt_attr attr);
+
+void*
+vmm_v2p(void* va);
+
 #endif /* __LUNAIX_VMM_H */