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2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da 
 kernel/arch/openrisc/include/asm/pgtable.h
....@@ -1,3 +1,4 @@
1
+/* SPDX-License-Identifier: GPL-2.0-or-later */
12 /*
23  * OpenRISC Linux
34  *
....@@ -9,11 +10,6 @@
910  * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
1011  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
1112  * et al.
12
- *
13
- * 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 as published by
15
- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
1713  */
1814 
1915 /* or32 pgtable.h - macros and functions to manipulate page tables
....@@ -25,7 +21,6 @@
2521 #ifndef __ASM_OPENRISC_PGTABLE_H
2622 #define __ASM_OPENRISC_PGTABLE_H
2723 
28
-#define __ARCH_USE_5LEVEL_HACK
2924 #include <asm-generic/pgtable-nopmd.h>
3025 
3126 #ifndef __ASSEMBLY__
....@@ -101,7 +96,7 @@
10196 /* Define some higher level generic page attributes.
10297  *
10398  * If you change _PAGE_CI definition be sure to change it in
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- * io.h for ioremap_nocache() too.
99
+ * io.h for ioremap() too.
105100  */
106101 
107102 /*
....@@ -240,8 +235,6 @@
240235 static inline int pte_exec(pte_t pte)  { return pte_val(pte) & _PAGE_EXEC; }
241236 static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
242237 static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
243
-static inline int pte_special(pte_t pte) { return 0; }
244
-static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
245238 
246239 static inline pte_t pte_wrprotect(pte_t pte)
247240 {
....@@ -370,38 +363,15 @@
370363 }
371364 
372365 #define pmd_page(pmd)		(pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
373
-#define pmd_page_kernel(pmd)    ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK))
374366 
375
-/* to find an entry in a page-table-directory. */
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-#define pgd_index(address)      ((address >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
377
-
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-#define __pgd_offset(address)   pgd_index(address)
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-
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-#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
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-
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-/* to find an entry in a kernel page-table-directory */
383
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
367
+static inline unsigned long pmd_page_vaddr(pmd_t pmd)
368
+{
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+	return ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK));
370
+}
384371 
385372 #define __pmd_offset(address) \
386373 	(((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
387374 
388
-/*
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- * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE]
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- *
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- * this macro returns the index of the entry in the pte page which would
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- * control the given virtual address
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- */
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-#define __pte_offset(address)                   \
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-	(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
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-#define pte_offset_kernel(dir, address)         \
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-	((pte_t *) pmd_page_kernel(*(dir)) +  __pte_offset(address))
398
-#define pte_offset_map(dir, address)	        \
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-	((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
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-#define pte_offset_map_nested(dir, address)     \
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-	pte_offset_map(dir, address)
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-
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-#define pte_unmap(pte)          do { } while (0)
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-#define pte_unmap_nested(pte)   do { } while (0)
405375 #define pte_pfn(x)		((unsigned long)(((x).pte)) >> PAGE_SHIFT)
406376 #define pfn_pte(pfn, prot)  __pte((((pfn) << PAGE_SHIFT)) | pgprot_val(prot))
407377 
....@@ -444,13 +414,6 @@
444414 #define __swp_entry_to_pte(x)		((pte_t) { (x).val })
445415 
446416 #define kern_addr_valid(addr)           (1)
447
-
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-#include <asm-generic/pgtable.h>
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-
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-/*
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- * No page table caches to initialise
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- */
453
-#define pgtable_cache_init()		do { } while (0)
454417 
455418 typedef pte_t *pte_addr_t;
456419