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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/xtensa/include/asm/pgtable.h
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@@ -1,9 +1,6 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * include/asm-xtensa/pgtable.h
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  *
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  * Copyright (C) 2001 - 2013 Tensilica Inc.
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  */
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@@ -11,7 +8,6 @@
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 #ifndef _XTENSA_PGTABLE_H
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 #define _XTENSA_PGTABLE_H
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-#define __ARCH_USE_5LEVEL_HACK
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 #include <asm/page.h>
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 #include <asm/kmem_layout.h>
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 #include <asm-generic/pgtable-nopmd.h>
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@@ -73,7 +69,7 @@
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  */
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 #define VMALLOC_START		(XCHAL_KSEG_CACHED_VADDR - 0x10000000)
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 #define VMALLOC_END		(VMALLOC_START + 0x07FEFFFF)
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-#define TLBTEMP_BASE_1		(VMALLOC_END + 1)
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+#define TLBTEMP_BASE_1		(VMALLOC_START + 0x08000000)
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 #define TLBTEMP_BASE_2		(TLBTEMP_BASE_1 + DCACHE_WAY_SIZE)
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 #if 2 * DCACHE_WAY_SIZE > ICACHE_WAY_SIZE
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 #define TLBTEMP_SIZE		(2 * DCACHE_WAY_SIZE)
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@@ -241,7 +237,6 @@
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 # define swapper_pg_dir NULL
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 static inline void paging_init(void) { }
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 #endif
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-static inline void pgtable_cache_init(void) { }
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 /*
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  * The pmd contains the kernel virtual address of the pte page.
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@@ -271,9 +266,8 @@
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 static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_WRITABLE; }
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 static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
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 static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
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-static inline int pte_special(pte_t pte) { return 0; }
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-static inline pte_t pte_wrprotect(pte_t pte)	
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+static inline pte_t pte_wrprotect(pte_t pte)
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 	{ pte_val(pte) &= ~(_PAGE_WRITABLE | _PAGE_HW_WRITE); return pte; }
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 static inline pte_t pte_mkclean(pte_t pte)
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 	{ pte_val(pte) &= ~(_PAGE_DIRTY | _PAGE_HW_WRITE); return pte; }
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@@ -285,8 +279,6 @@
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 	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
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 static inline pte_t pte_mkwrite(pte_t pte)
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 	{ pte_val(pte) |= _PAGE_WRITABLE; return pte; }
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-static inline pte_t pte_mkspecial(pte_t pte)
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-	{ return pte; }
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 #define pgprot_noncached(prot) (__pgprot(pgprot_val(prot) & ~_PAGE_CA_MASK))
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@@ -367,25 +359,6 @@
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 	update_pte(ptep, pte_wrprotect(pte));
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 }
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-/* to find an entry in a kernel page-table-directory */
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-#define pgd_offset_k(address)	pgd_offset(&init_mm, address)
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-
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-/* to find an entry in a page-table-directory */
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-#define pgd_offset(mm,address)	((mm)->pgd + pgd_index(address))
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-
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-#define pgd_index(address)	((address) >> PGDIR_SHIFT)
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-
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-/* Find an entry in the second-level page table.. */
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-#define pmd_offset(dir,address) ((pmd_t*)(dir))
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-
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-/* Find an entry in the third-level page table.. */
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-#define pte_index(address)	(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
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-#define pte_offset_kernel(dir,addr) 					\
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-	((pte_t*) pmd_page_vaddr(*(dir)) + pte_index(addr))
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-#define pte_offset_map(dir,addr)	pte_offset_kernel((dir),(addr))
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-#define pte_unmap(pte)		do { } while (0)
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-
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-
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 /*
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  * Encode and decode a swap and file entry.
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  */
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  * SHM area cache aliasing for userland.
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  */
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 #define HAVE_ARCH_UNMAPPED_AREA
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-
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-#include <asm-generic/pgtable.h>
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 #endif /* _XTENSA_PGTABLE_H */