ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/arm/include/asm/tlb.h b/marvell/linux/arch/arm/include/asm/tlb.h
new file mode 100644
index 0000000..669474a
--- /dev/null
+++ b/marvell/linux/arch/arm/include/asm/tlb.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm/include/asm/tlb.h
+ *
+ * Copyright (C) 2002 Russell King
+ *
+ * Experimentation shows that on a StrongARM, it appears to be faster
+ * to use the "invalidate whole tlb" rather than "invalidate single
+ * tlb" for this.
+ *
+ * This appears true for both the process fork+exit case, as well as
+ * the munmap-large-area case.
+ */
+#ifndef __ASMARM_TLB_H
+#define __ASMARM_TLB_H
+
+#include <asm/cacheflush.h>
+
+#ifndef CONFIG_MMU
+
+#include <linux/pagemap.h>
+
+#define tlb_flush(tlb) ((void) tlb)
+
+#include <asm-generic/tlb.h>
+
+#else /* !CONFIG_MMU */
+
+#include <linux/swap.h>
+#include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
+
+static inline void __tlb_remove_table(void *_table)
+{
+ free_page_and_swap_cache((struct page *)_table);
+}
+
+#include <asm-generic/tlb.h>
+
+#ifndef CONFIG_HAVE_RCU_TABLE_FREE
+#define tlb_remove_table(tlb, entry) tlb_remove_page(tlb, entry)
+#endif
+
+static inline void
+__pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr)
+{
+ pgtable_pte_page_dtor(pte);
+
+#ifndef CONFIG_ARM_LPAE
+ /*
+ * With the classic ARM MMU, a pte page has two corresponding pmd
+ * entries, each covering 1MB.
+ */
+ addr = (addr & PMD_MASK) + SZ_1M;
+ __tlb_adjust_range(tlb, addr - PAGE_SIZE, 2 * PAGE_SIZE);
+#endif
+
+ tlb_remove_table(tlb, pte);
+}
+
+static inline void
+__pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr)
+{
+#ifdef CONFIG_ARM_LPAE
+ struct page *page = virt_to_page(pmdp);
+
+ tlb_remove_table(tlb, page);
+#endif
+}
+
+#endif /* CONFIG_MMU */
+#endif