mm: rename vmm api to mm

kernel-src/include/kernel/mm.h

@@ -1,9 +1,98 @@
 #ifndef _MM_H
 #define _MM_H
 
+#include <arch/mmu.h>
+#include <mutex.h>
 #include <kernel/page.h>
 #include <kernel/vfs.h>
-#include <kernel/vmm.h>
+#include <rbtree.h>
+
+#define MM_RANGE_FLAGS_PAGESIZE 1
+#define MM_RANGE_FLAGS_ALLOCATE 2
+#define MM_RANGE_FLAGS_PHYSICAL 4
+#define MM_RANGE_FLAGS_FILE     8
+#define MM_RANGE_FLAGS_EXACT   16
+#define MM_RANGE_FLAGS_SHARED  32
+#define MM_RANGE_FLAGS_REPLACE 64
+#define MM_RANGE_FLAGS_CREDCHECK 128
+
+#define MM_PERMANENT_RANGE_FLAGS_MASK (MM_RANGE_FLAGS_FILE | MM_RANGE_FLAGS_SHARED | MM_RANGE_FLAGS_PHYSICAL)
+
+#define MM_FAULT_ACTION_READ 1
+#define MM_FAULT_ACTION_WRITE 2
+#define MM_FAULT_ACTION_EXEC 4
+
+typedef struct {
+	vnode_t *node;
+	uintmax_t offset;
+} mm_map_file_desc_t;
+
+typedef struct mm_range_t{
+	rbtree_t rbtree_node;
+	void *start;
+	size_t size;
+	int flags;
+	mmuflags_t mmuflags;
+	union {
+		struct {
+			vnode_t *vnode;
+			size_t offset;
+		};
+	};
+} mm_range_t;
+
+typedef struct {
+	mutex_t lock;
+	rbtree_t *ranges;
+	void *start;
+	void *end;
+} mm_space_t;
+
+typedef struct {
+	mm_space_t space;
+	pagetableptr_t pagetable;
+} mm_context_t;
+
+extern mm_context_t mm_kernel_ctx;
+
+static inline mmuflags_t mm_vnode_flags_to_mmu_flags(int flags) {
+	mmuflags_t mmuflags = ARCH_MMU_FLAGS_USER;
+	if (flags & V_FFLAGS_READ)
+		mmuflags |= ARCH_MMU_FLAGS_READ;
+	if (flags & V_FFLAGS_WRITE)
+		mmuflags |= ARCH_MMU_FLAGS_WRITE;
+	if ((flags & V_FFLAGS_EXEC) == 0)
+		mmuflags |= ARCH_MMU_FLAGS_NOEXEC;
+
+	return mmuflags;
+}
+
+static inline int mm_mmu_flags_to_vnode_flags(mmuflags_t mmuflags) {
+	int flags = 0;
+	if (mmuflags & ARCH_MMU_FLAGS_READ)
+		flags |= V_FFLAGS_READ;
+	if (mmuflags & ARCH_MMU_FLAGS_WRITE)
+		flags |= V_FFLAGS_WRITE;
+	if ((mmuflags & ARCH_MMU_FLAGS_NOEXEC) == 0)
+		flags |= V_FFLAGS_EXEC;
+
+	return flags;
+}
+
+int mm_change_mmu_flags(void *base, size_t size, mmuflags_t mmuflags, int flags);
+void mm_destroy_context(mm_context_t *context);
+mm_context_t *mm_fork_context(mm_context_t *oldcontext);
+void *mm_map(void *addr, size_t size, int flags, mmuflags_t mmuflags, void *private);
+void mm_unmap(void *addr, size_t size, int flags);
+bool mm_handle_page_fault(void *addr, bool user, int actions);
+mm_context_t *mm_create_context();
+void mm_switch_context(mm_context_t *ctx);
+
+#define MM_GET_PHYSICAL_ADDRESS_FLAGS_HOLD 1
+#define MM_GET_PHYSICAL_ADDRESS_FLAGS_LOCK 2
+void *mm_get_physical_address(void *addr, int flags);
+void mm_apinit();
+void mm_init();
 
 extern size_t mm_cache_cached_pages;
 
@@ -18,12 +107,12 @@ int mm_cache_sync(void);
 int mm_cache_evict(page_t *page);
 
 void mm_range_init(void);
-vmmrange_t *mm_alloc_range(void);
-void mm_free_range(vmmrange_t *range);
-vmmrange_t *mm_get_range(vmmspace_t *space, void *addr);
-void *mm_get_free_range(vmmspace_t *space, void *addr, size_t size);
-void mm_insert_range(vmmspace_t *space, vmmrange_t *new_range);
-void mm_destroy_range(vmmrange_t *range, uintmax_t offset, size_t size, int flags);
-int mm_change_range(vmmspace_t *space, void *address, size_t size, bool free, int flags, mmuflags_t new_mmuflags);
+mm_range_t *mm_alloc_range(void);
+void mm_free_range(mm_range_t *range);
+mm_range_t *mm_get_range(mm_space_t *space, void *addr);
+void *mm_get_free_range(mm_space_t *space, void *addr, size_t size);
+void mm_insert_range(mm_space_t *space, mm_range_t *new_range);
+void mm_destroy_range(mm_range_t *range, uintmax_t offset, size_t size, int flags);
+int mm_change_range(mm_space_t *space, void *address, size_t size, bool free, int flags, mmuflags_t new_mmuflags);
 
 #endif