patacongo commented on a change in pull request #1958:
URL: https://github.com/apache/incubator-nuttx/pull/1958#discussion_r503966963
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File path: arch/xtensa/include/arch.h
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@@ -91,6 +91,18 @@ extern "C"
#define EXTERN extern
#endif
+#ifdef CONFIG_XTENSA_USE_SEPERATE_IMEM
+
+struct mallinfo; /* Forward reference, see malloc.h */
+
+void up_imm_initialize(void);
+FAR void *up_imm_malloc(size_t size);
+void up_imm_free(FAR void *mem);
+FAR void *up_imm_memalign(size_t alignment, size_t size);
+bool up_imm_heapmember(FAR void *mem);
+int up_imm_mallinfo(FAR struct mallinfo *info);
+#endif
+
Review comment:
The prefix up_ is reserved only for MCU interfaces called directly by
the OS and prototyped in included/nuttx/*.h (usually arch.h)
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