ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/arm64/include/asm/pgalloc.h b/marvell/linux/arch/arm64/include/asm/pgalloc.h
new file mode 100644
index 0000000..172d76f
--- /dev/null
+++ b/marvell/linux/arch/arm64/include/asm/pgalloc.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Based on arch/arm/include/asm/pgalloc.h
+ *
+ * Copyright (C) 2000-2001 Russell King
+ * Copyright (C) 2012 ARM Ltd.
+ */
+#ifndef __ASM_PGALLOC_H
+#define __ASM_PGALLOC_H
+
+#include <asm/pgtable-hwdef.h>
+#include <asm/processor.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+
+#include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */
+
+#define PGD_SIZE (PTRS_PER_PGD * sizeof(pgd_t))
+
+#if CONFIG_PGTABLE_LEVELS > 2
+
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+ gfp_t gfp = GFP_PGTABLE_USER;
+ struct page *page;
+
+ if (mm == &init_mm)
+ gfp = GFP_PGTABLE_KERNEL;
+
+ page = alloc_page(gfp);
+ if (!page)
+ return NULL;
+ if (!pgtable_pmd_page_ctor(page)) {
+ __free_page(page);
+ return NULL;
+ }
+ return page_address(page);
+}
+
+static inline void pmd_free(struct mm_struct *mm, pmd_t *pmdp)
+{
+ BUG_ON((unsigned long)pmdp & (PAGE_SIZE-1));
+ pgtable_pmd_page_dtor(virt_to_page(pmdp));
+ free_page((unsigned long)pmdp);
+}
+
+static inline void __pud_populate(pud_t *pudp, phys_addr_t pmdp, pudval_t prot)
+{
+ set_pud(pudp, __pud(__phys_to_pud_val(pmdp) | prot));
+}
+
+static inline void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmdp)
+{
+ __pud_populate(pudp, __pa(pmdp), PMD_TYPE_TABLE);
+}
+#else
+static inline void __pud_populate(pud_t *pudp, phys_addr_t pmdp, pudval_t prot)
+{
+ BUILD_BUG();
+}
+#endif /* CONFIG_PGTABLE_LEVELS > 2 */
+
+#if CONFIG_PGTABLE_LEVELS > 3
+
+static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+ return (pud_t *)__get_free_page(GFP_PGTABLE_USER);
+}
+
+static inline void pud_free(struct mm_struct *mm, pud_t *pudp)
+{
+ BUG_ON((unsigned long)pudp & (PAGE_SIZE-1));
+ free_page((unsigned long)pudp);
+}
+
+static inline void __pgd_populate(pgd_t *pgdp, phys_addr_t pudp, pgdval_t prot)
+{
+ set_pgd(pgdp, __pgd(__phys_to_pgd_val(pudp) | prot));
+}
+
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgdp, pud_t *pudp)
+{
+ __pgd_populate(pgdp, __pa(pudp), PUD_TYPE_TABLE);
+}
+#else
+static inline void __pgd_populate(pgd_t *pgdp, phys_addr_t pudp, pgdval_t prot)
+{
+ BUILD_BUG();
+}
+#endif /* CONFIG_PGTABLE_LEVELS > 3 */
+
+extern pgd_t *pgd_alloc(struct mm_struct *mm);
+extern void pgd_free(struct mm_struct *mm, pgd_t *pgdp);
+
+static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t ptep,
+ pmdval_t prot)
+{
+ set_pmd(pmdp, __pmd(__phys_to_pmd_val(ptep) | prot));
+}
+
+/*
+ * Populate the pmdp entry with a pointer to the pte. This pmd is part
+ * of the mm address space.
+ */
+static inline void
+pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
+{
+ /*
+ * The pmd must be loaded with the physical address of the PTE table
+ */
+ __pmd_populate(pmdp, __pa(ptep), PMD_TYPE_TABLE);
+}
+
+static inline void
+pmd_populate(struct mm_struct *mm, pmd_t *pmdp, pgtable_t ptep)
+{
+ __pmd_populate(pmdp, page_to_phys(ptep), PMD_TYPE_TABLE);
+}
+#define pmd_pgtable(pmd) pmd_page(pmd)
+
+#endif