Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 64 insertions, 0 deletions

diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
new file mode 100644
index 0000000000..0fb2b6291d
--- /dev/null
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_IA64_PGALLOC_H
+#define _ASM_IA64_PGALLOC_H
+
+/*
+ * This file contains the functions and defines necessary to allocate
+ * page tables.
+ *
+ * This hopefully works with any (fixed) ia-64 page-size, as defined
+ * in <asm/page.h> (currently 8192).
+ *
+ * Copyright (C) 1998-2001 Hewlett-Packard Co
+ *	David Mosberger-Tang <davidm@hpl.hp.com>
+ * Copyright (C) 2000, Goutham Rao <goutham.rao@intel.com>
+ */
+
+
+#include <linux/compiler.h>
+#include <linux/mm.h>
+#include <linux/page-flags.h>
+#include <linux/threads.h>
+
+#include <asm-generic/pgalloc.h>
+
+#include <asm/mmu_context.h>
+
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+	return (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
+}
+
+#if CONFIG_PGTABLE_LEVELS == 4
+static inline void
+p4d_populate(struct mm_struct *mm, p4d_t * p4d_entry, pud_t * pud)
+{
+	p4d_val(*p4d_entry) = __pa(pud);
+}
+
+#define __pud_free_tlb(tlb, pud, address)	pud_free((tlb)->mm, pud)
+#endif /* CONFIG_PGTABLE_LEVELS == 4 */
+
+static inline void
+pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
+{
+	pud_val(*pud_entry) = __pa(pmd);
+}
+
+#define __pmd_free_tlb(tlb, pmd, address)	pmd_free((tlb)->mm, pmd)
+
+static inline void
+pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, pgtable_t pte)
+{
+	pmd_val(*pmd_entry) = page_to_phys(pte);
+}
+
+static inline void
+pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
+{
+	pmd_val(*pmd_entry) = __pa(pte);
+}
+
+#define __pte_free_tlb(tlb, pte, address)	pte_free((tlb)->mm, pte)
+
+#endif				/* _ASM_IA64_PGALLOC_H */