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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/um/include/asm/pgalloc.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--arch/um/include/asm/pgalloc.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
new file mode 100644
index 000000000..8ec7cd46d
--- /dev/null
+++ b/arch/um/include/asm/pgalloc.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright 2003 PathScale, Inc.
+ * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h
+ */
+
+#ifndef __UM_PGALLOC_H
+#define __UM_PGALLOC_H
+
+#include <linux/mm.h>
+
+#include <asm-generic/pgalloc.h>
+
+#define pmd_populate_kernel(mm, pmd, pte) \
+ set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))
+
+#define pmd_populate(mm, pmd, pte) \
+ set_pmd(pmd, __pmd(_PAGE_TABLE + \
+ ((unsigned long long)page_to_pfn(pte) << \
+ (unsigned long long) PAGE_SHIFT)))
+
+/*
+ * Allocate and free page tables.
+ */
+extern pgd_t *pgd_alloc(struct mm_struct *);
+
+#define __pte_free_tlb(tlb,pte, address) \
+do { \
+ pgtable_pte_page_dtor(pte); \
+ tlb_remove_page((tlb),(pte)); \
+} while (0)
+
+#ifdef CONFIG_3_LEVEL_PGTABLES
+
+#define __pmd_free_tlb(tlb, pmd, address) \
+do { \
+ pgtable_pmd_page_dtor(virt_to_page(pmd)); \
+ tlb_remove_page((tlb),virt_to_page(pmd)); \
+} while (0) \
+
+#endif
+
+#endif
+