kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/arch/riscv/include/asm/pgalloc.h
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@@ -1,15 +1,7 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2009 Chen Liqin <liqin.chen@sunplusct.com>
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  * Copyright (C) 2012 Regents of the University of California
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- *
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- *   This program is free software; you can redistribute it and/or
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- *   modify it under the terms of the GNU General Public License
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- *   as published by the Free Software Foundation, version 2.
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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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 #ifndef _ASM_RISCV_PGALLOC_H
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@@ -17,6 +9,9 @@
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 #include <linux/mm.h>
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 #include <asm/tlb.h>
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+
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+#ifdef CONFIG_MMU
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+#include <asm-generic/pgalloc.h>
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 static inline void pmd_populate_kernel(struct mm_struct *mm,
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 	pmd_t *pmd, pte_t *pte)
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@@ -60,65 +55,17 @@
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 	return pgd;
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 }
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-static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
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-{
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-	free_page((unsigned long)pgd);
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-}
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-
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 #ifndef __PAGETABLE_PMD_FOLDED
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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_free_page(
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-		GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO);
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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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-	free_page((unsigned long)pmd);
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-}
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 #define __pmd_free_tlb(tlb, pmd, addr)  pmd_free((tlb)->mm, pmd)
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 #endif /* __PAGETABLE_PMD_FOLDED */
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-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
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-	unsigned long address)
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-{
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-	return (pte_t *)__get_free_page(
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-		GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO);
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-}
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-
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-static inline struct page *pte_alloc_one(struct mm_struct *mm,
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-	unsigned long address)
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-{
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-	struct page *pte;
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-
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-	pte = alloc_page(GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_ZERO);
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-	if (likely(pte != NULL))
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-		pgtable_page_ctor(pte);
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-	return pte;
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-}
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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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-	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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-
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 #define __pte_free_tlb(tlb, pte, buf)   \
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 do {                                    \
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-	pgtable_page_dtor(pte);         \
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+	pgtable_pte_page_dtor(pte);     \
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 	tlb_remove_page((tlb), pte);    \
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 } while (0)
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-
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-static inline void check_pgt_cache(void)
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-{
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-}
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+#endif /* CONFIG_MMU */
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 #endif /* _ASM_RISCV_PGALLOC_H */