import RT-Thread@9217865c without bsp, libcpu and components/net

2023-05-20 16:23:33 +08:00 · 2023-05-20 16:23:33 +08:00 · e2376a3709
commit e2376a3709
1414 changed files with 390370 additions and 0 deletions
--- a/components/mm/mm_page.h
+++ b/components/mm/mm_page.h
@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-11-01     Jesven       The first version
+ * 2022-12-13     WangXiaoyao  Hot-pluggable, extensible
+ *                             page management algorithm
+ */
+#ifndef __MM_PAGE_H__
+#define __MM_PAGE_H__
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <stdint.h>
+
+#define GET_FLOOR(type) \
+    (1ul << (8 * sizeof(rt_size_t) - __builtin_clzl(2 * sizeof(type) - 1) - 1))
+#define DEF_PAGE_T(fields) \
+    typedef struct rt_page {\
+        union {struct {fields}; char _padding[GET_FLOOR(struct {fields})];};\
+    } *rt_page_t
+
+/**
+ * @brief PAGE ALLOC FLAGS
+ *
+ * @info PAGE_ANY_AVAILABLE
+ * page allocation default to use lower region, this behavior can change by setting
+ * PAGE_ANY_AVAILABLE
+ */
+
+#define PAGE_ANY_AVAILABLE 0x1ul
+
+
+#ifdef RT_DEBUG_PAGE_LEAK
+#define DEBUG_FIELD {           \
+    /* trace list */            \
+    struct rt_page *tl_next;    \
+    struct rt_page *tl_prev;    \
+    void *caller;               \
+    size_t trace_size;          \
+}
+#else
+#define DEBUG_FIELD
+#endif
+
+DEF_PAGE_T(
+    struct rt_page *next;   /* same level next */
+    struct rt_page *pre;    /* same level pre  */
+
+    DEBUG_FIELD
+
+    rt_uint32_t size_bits;     /* if is ARCH_ADDRESS_WIDTH_BITS, means not free */
+    rt_uint32_t ref_cnt;       /* page group ref count */
+);
+
+#undef GET_FLOOR
+#undef DEF_PAGE_T
+
+typedef struct tag_region
+{
+    rt_size_t start;
+    rt_size_t end;
+} rt_region_t;
+
+extern const rt_size_t rt_mpr_size;
+extern void *rt_mpr_start;
+
+void rt_page_init(rt_region_t reg);
+
+void rt_page_cleanup(void);
+
+void *rt_pages_alloc(rt_uint32_t size_bits);
+
+void *rt_pages_alloc_ext(rt_uint32_t size_bits, size_t flags);
+
+void rt_page_ref_inc(void *addr, rt_uint32_t size_bits);
+
+int rt_page_ref_get(void *addr, rt_uint32_t size_bits);
+
+int rt_pages_free(void *addr, rt_uint32_t size_bits);
+
+void rt_page_list(void);
+
+rt_size_t rt_page_bits(rt_size_t size);
+
+void rt_page_get_info(rt_size_t *total_nr, rt_size_t *free_nr);
+
+void *rt_page_page2addr(struct rt_page *p);
+
+struct rt_page *rt_page_addr2page(void *addr);
+
+/**
+ * @brief Install page frames at run-time
+ * Region size must be aligned to 2^(RT_PAGE_MAX_ORDER + ARCH_PAGE_SHIFT - 1)
+ * bytes currently (typically 2 MB).
+ *
+ * !WARNING this API will NOT check whether region is valid or not in list
+ *
+ * @param region region.start as first page frame(inclusive),
+ *               region.end as first page frame after free region
+ * @return int 0 on success
+ */
+int rt_page_install(rt_region_t region);
+
+void rt_page_leak_trace_start(void);
+
+void rt_page_leak_trace_stop(void);
+
+#endif /* __MM_PAGE_H__ */