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2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/arch/hexagon/include/asm/pgtable.h
....@@ -1,21 +1,8 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * Page table support for the Hexagon architecture
34  *
45  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
5
- *
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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 and
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- * only version 2 as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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- * 02110-1301, USA.
196  */
207 
218 #ifndef _ASM_PGTABLE_H
....@@ -25,7 +12,6 @@
2512  * Page table definitions for Qualcomm Hexagon processor.
2613  */
2714 #include <asm/page.h>
28
-#define __ARCH_USE_5LEVEL_HACK
2915 #include <asm-generic/pgtable-nopmd.h>
3016 
3117 /* A handy thing to have if one has the RAM. Declared in head.S */
....@@ -171,8 +157,6 @@
171157 
172158 /* Seems to be zero even in architectures where the zero page is firewalled? */
173159 #define FIRST_USER_ADDRESS 0UL
174
-#define pte_special(pte)	0
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-#define pte_mkspecial(pte)	(pte)
176160 
177161 /*  HUGETLB not working currently  */
178162 #ifdef CONFIG_HUGETLB_PAGE
....@@ -221,33 +205,6 @@
221205 {
222206 	pte_val(*ptep) = _NULL_PTE;
223207 }
224
-
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-#ifdef NEED_PMD_INDEX_DESPITE_BEING_2_LEVEL
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-/**
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- * pmd_index - returns the index of the entry in the PMD page
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- * which would control the given virtual address
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- */
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-#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
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-
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-#endif
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-
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-/**
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- * pgd_index - returns the index of the entry in the PGD page
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- * which would control the given virtual address
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- *
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- * This returns the *index* for the address in the pgd_t
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- */
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-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
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-
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-/*
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- * pgd_offset - find an offset in a page-table-directory
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- */
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-#define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr))
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-
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-/*
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- * pgd_offset_k - get kernel (init_mm) pgd entry pointer for addr
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- */
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-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
251208 
252209 /**
253210  * pmd_none - check if pmd_entry is mapped
....@@ -419,33 +376,13 @@
419376  */
420377 #define set_pte_at(mm, addr, ptep, pte) set_pte(ptep, pte)
421378 
422
-/*
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- * May need to invoke the virtual machine as well...
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- */
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-#define pte_unmap(pte)		do { } while (0)
426
-#define pte_unmap_nested(pte)	do { } while (0)
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-
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-/*
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- * pte_offset_map - returns the linear address of the page table entry
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- * corresponding to an address
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- */
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-#define pte_offset_map(dir, address)                                    \
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-	((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
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-
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-#define pte_offset_map_nested(pmd, addr) pte_offset_map(pmd, addr)
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-
437
-/* pte_offset_kernel - kernel version of pte_offset */
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-#define pte_offset_kernel(dir, address) \
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-	((pte_t *) (unsigned long) __va(pmd_val(*dir) & PAGE_MASK) \
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-				+  __pte_offset(address))
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+static inline unsigned long pmd_page_vaddr(pmd_t pmd)
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+{
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+	return (unsigned long)__va(pmd_val(pmd) & PAGE_MASK);
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+}
441383 
442384 /* ZERO_PAGE - returns the globally shared zero page */
443385 #define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))
444
-
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-#define __pte_offset(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
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-
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-/*  I think this is in case we have page table caches; needed by init/main.c  */
448
-#define pgtable_cache_init()    do { } while (0)
449386 
450387 /*
451388  * Swap/file PTE definitions.  If _PAGE_PRESENT is zero, the rest of the PTE is
....@@ -478,8 +415,5 @@
478415 	((swp_entry_t)	{ \
479416 		((type << 1) | \
480417 		 ((offset & 0x7ffff0) << 9) | ((offset & 0xf) << 6)) })
481
-
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-/*  Oh boy.  There are a lot of possible arch overrides found in this file.  */
483
-#include <asm-generic/pgtable.h>
484418 
485419 #endif