add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/arch/arm/include/asm/pgalloc.h
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@@ -1,11 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  *  arch/arm/include/asm/pgalloc.h
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  *
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  *  Copyright (C) 2000-2001 Russell King
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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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 #ifndef _ASMARM_PGALLOC_H
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 #define _ASMARM_PGALLOC_H
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@@ -18,25 +15,12 @@
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 #include <asm/cacheflush.h>
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 #include <asm/tlbflush.h>
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-#define check_pgt_cache()		do { } while (0)
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-
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 #ifdef CONFIG_MMU
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 #define _PAGE_USER_TABLE	(PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_USER))
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 #define _PAGE_KERNEL_TABLE	(PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_KERNEL))
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 #ifdef CONFIG_ARM_LPAE
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-
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-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
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-{
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-	return (pmd_t *)get_zeroed_page(GFP_KERNEL);
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-}
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-
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-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
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-{
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-	BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
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-	free_page((unsigned long)pmd);
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-}
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 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
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 {
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@@ -56,8 +40,6 @@
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 extern pgd_t *pgd_alloc(struct mm_struct *mm);
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 extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
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-
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-#define PGALLOC_GFP	(GFP_KERNEL | __GFP_ZERO)
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 static inline void clean_pte_table(pte_t *pte)
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 {
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@@ -80,52 +62,40 @@
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  *  |  h/w pt 1  |
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  *  +------------+
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  */
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-static inline pte_t *
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-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
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-{
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-	pte_t *pte;
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-	pte = (pte_t *)__get_free_page(PGALLOC_GFP);
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+#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL
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+#define __HAVE_ARCH_PTE_ALLOC_ONE
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+#define __HAVE_ARCH_PGD_FREE
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+#include <asm-generic/pgalloc.h>
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+
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+static inline pte_t *
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+pte_alloc_one_kernel(struct mm_struct *mm)
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+{
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+	pte_t *pte = __pte_alloc_one_kernel(mm);
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+
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 	if (pte)
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 		clean_pte_table(pte);
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 	return pte;
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 }
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+#ifdef CONFIG_HIGHPTE
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+#define PGTABLE_HIGHMEM __GFP_HIGHMEM
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+#else
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+#define PGTABLE_HIGHMEM 0
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+#endif
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+
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 static inline pgtable_t
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-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
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+pte_alloc_one(struct mm_struct *mm)
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 {
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 	struct page *pte;
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-#ifdef CONFIG_HIGHPTE
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-	pte = alloc_pages(PGALLOC_GFP | __GFP_HIGHMEM, 0);
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-#else
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-	pte = alloc_pages(PGALLOC_GFP, 0);
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-#endif
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+	pte = __pte_alloc_one(mm, GFP_PGTABLE_USER | PGTABLE_HIGHMEM);
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 	if (!pte)
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 		return NULL;
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 	if (!PageHighMem(pte))
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 		clean_pte_table(page_address(pte));
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-	if (!pgtable_page_ctor(pte)) {
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-		__free_page(pte);
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-		return NULL;
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-	}
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 	return pte;
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-}
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-
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-/*
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- * Free one PTE table.
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- */
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-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
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-{
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-	if (pte)
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-		free_page((unsigned long)pte);
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-}
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-
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-static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
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-{
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-	pgtable_page_dtor(pte);
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-	__free_page(pte);
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 }
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 static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,