From 10ebd8556b7990499c896a550e3d416b444211e6 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 02:23:07 +0000
Subject: [PATCH] add led
---
kernel/arch/arm/include/asm/pgalloc.h | 68 +++++++++------------------------
1 files changed, 19 insertions(+), 49 deletions(-)
diff --git a/kernel/arch/arm/include/asm/pgalloc.h b/kernel/arch/arm/include/asm/pgalloc.h
index 2d7344f..15f4674 100644
--- a/kernel/arch/arm/include/asm/pgalloc.h
+++ b/kernel/arch/arm/include/asm/pgalloc.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/pgalloc.h
*
* Copyright (C) 2000-2001 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef _ASMARM_PGALLOC_H
#define _ASMARM_PGALLOC_H
@@ -18,25 +15,12 @@
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
-#define check_pgt_cache() do { } while (0)
-
#ifdef CONFIG_MMU
#define _PAGE_USER_TABLE (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_USER))
#define _PAGE_KERNEL_TABLE (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_KERNEL))
#ifdef CONFIG_ARM_LPAE
-
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
-{
- return (pmd_t *)get_zeroed_page(GFP_KERNEL);
-}
-
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-{
- BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
- free_page((unsigned long)pmd);
-}
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
@@ -56,8 +40,6 @@
extern pgd_t *pgd_alloc(struct mm_struct *mm);
extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
-
-#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
static inline void clean_pte_table(pte_t *pte)
{
@@ -80,52 +62,40 @@
* | h/w pt 1 |
* +------------+
*/
-static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
-{
- pte_t *pte;
- pte = (pte_t *)__get_free_page(PGALLOC_GFP);
+#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL
+#define __HAVE_ARCH_PTE_ALLOC_ONE
+#define __HAVE_ARCH_PGD_FREE
+#include <asm-generic/pgalloc.h>
+
+static inline pte_t *
+pte_alloc_one_kernel(struct mm_struct *mm)
+{
+ pte_t *pte = __pte_alloc_one_kernel(mm);
+
if (pte)
clean_pte_table(pte);
return pte;
}
+#ifdef CONFIG_HIGHPTE
+#define PGTABLE_HIGHMEM __GFP_HIGHMEM
+#else
+#define PGTABLE_HIGHMEM 0
+#endif
+
static inline pgtable_t
-pte_alloc_one(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one(struct mm_struct *mm)
{
struct page *pte;
-#ifdef CONFIG_HIGHPTE
- pte = alloc_pages(PGALLOC_GFP | __GFP_HIGHMEM, 0);
-#else
- pte = alloc_pages(PGALLOC_GFP, 0);
-#endif
+ pte = __pte_alloc_one(mm, GFP_PGTABLE_USER | PGTABLE_HIGHMEM);
if (!pte)
return NULL;
if (!PageHighMem(pte))
clean_pte_table(page_address(pte));
- if (!pgtable_page_ctor(pte)) {
- __free_page(pte);
- return NULL;
- }
return pte;
-}
-
-/*
- * Free one PTE table.
- */
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- if (pte)
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
-{
- pgtable_page_dtor(pte);
- __free_page(pte);
}
static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
--
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