waterDataFluctuationCorrelation fireHydrantDataOperation.h 李欣儒 commit at 2020-09-23

waterDataFluctuationCorrelation/databaseOperation/fireHydrantDataOperation.h

@@ -0,0 +1,40 @@
+#ifndef _ASM_M32R_PGTABLE_H
+#define _ASM_M32R_PGTABLE_H
+
+#include <asm-generic/4level-fixup.h>
+
+#ifdef __KERNEL__
+/*
+ * The Linux memory management assumes a three-level page table setup. On
+ * the M32R, we use that, but "fold" the mid level into the top-level page
+ * table, so that we physically have the same two-level page table as the
+ * M32R mmu expects.
+ *
+ * This file contains the functions and defines necessary to modify and use
+ * the M32R page table tree.
+ */
+
+/* CAUTION!: If you change macro definitions in this file, you might have to
+ * change arch/m32r/mmu.S manually.
+ */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/threads.h>
+#include <linux/bitops.h>
+#include <asm/processor.h>
+#include <asm/addrspace.h>
+#include <asm/page.h>
+
+struct mm_struct;
+struct vm_area_struct;
+
+extern pgd_t swapper_pg_dir[1024];
+extern void paging_init(void);
+
+/*
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+extern unsigned long empty_zero_page[1024];
+#define ZERO_PAGE(vaddr)	(virt_to_page(empty_zero_page))