X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/61bcf0c65dac58d2f29ab40e016489c89ec8eec0..df61e9d0fec3d5e75820e27e7a2459d132364585:/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 4a22cd7..182058b 100644
--- a/lunaix-os/includes/lunaix/mm/vmm.h
+++ b/lunaix-os/includes/lunaix/mm/vmm.h
@@ -6,6 +6,24 @@
 #include <stdint.h>
 // Virtual memory manager
 
+#define VMAP_NULL 0
+/**
+ * @brief 映射模式：忽略已存在映射
+ *
+ */
+#define VMAP_IGNORE 1
+/**
+ * @brief 映射模式：不作实际映射。该功能用于预留出特定的地址空间
+ *
+ */
+#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
  *
@@ -31,7 +49,11 @@ vmm_init_pd();
  * @return int
  */
 int
-vmm_set_mapping(uintptr_t mnt, uintptr_t va, uintptr_t pa, pt_attr attr);
+vmm_set_mapping(uintptr_t mnt,
+                uintptr_t va,
+                uintptr_t pa,
+                pt_attr attr,
+                int options);
 
 /**
  * @brief 删除一个映射
@@ -41,7 +63,7 @@ vmm_set_mapping(uintptr_t mnt, uintptr_t va, uintptr_t pa, pt_attr attr);
  * @param va
  * @return int
  */
-int
+uintptr_t
 vmm_del_mapping(uintptr_t mnt, uintptr_t va);
 
 /**
@@ -62,6 +84,9 @@ vmm_lookup(uintptr_t va, v_mapping* mapping);
 void*
 vmm_dup_page(pid_t pid, void* pa);
 
+void*
+vmm_dup_vmspace(pid_t pid);
+
 /**
  * @brief 挂载另一个虚拟地址空间至当前虚拟地址空间
  *
@@ -78,4 +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 */