From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/arch/mips/mm/pgtable-32.c | 29 +++++++++++++++++++++++++----
1 files changed, 25 insertions(+), 4 deletions(-)
diff --git a/kernel/arch/mips/mm/pgtable-32.c b/kernel/arch/mips/mm/pgtable-32.c
index b19a3c5..bd4b065 100644
--- a/kernel/arch/mips/mm/pgtable-32.c
+++ b/kernel/arch/mips/mm/pgtable-32.c
@@ -7,11 +7,11 @@
*/
#include <linux/init.h>
#include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/highmem.h>
#include <asm/fixmap.h>
-#include <asm/pgtable.h>
#include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
void pgd_init(unsigned long page)
{
@@ -30,12 +30,32 @@
}
}
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE)
+pmd_t mk_pmd(struct page *page, pgprot_t prot)
+{
+ pmd_t pmd;
+
+ pmd_val(pmd) = (page_to_pfn(page) << _PFN_SHIFT) | pgprot_val(prot);
+
+ return pmd;
+}
+
+
+void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp, pmd_t pmd)
+{
+ *pmdp = pmd;
+ flush_tlb_all();
+}
+#endif /* defined(CONFIG_TRANSPARENT_HUGEPAGE) */
+
void __init pagetable_init(void)
{
unsigned long vaddr;
pgd_t *pgd_base;
#ifdef CONFIG_HIGHMEM
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
@@ -61,8 +81,9 @@
vaddr = PKMAP_BASE;
fixrange_init(vaddr & PMD_MASK, vaddr + PAGE_SIZE*LAST_PKMAP, pgd_base);
- pgd = swapper_pg_dir + __pgd_offset(vaddr);
- pud = pud_offset(pgd, vaddr);
+ pgd = swapper_pg_dir + pgd_index(vaddr);
+ p4d = p4d_offset(pgd, vaddr);
+ pud = pud_offset(p4d, vaddr);
pmd = pmd_offset(pud, vaddr);
pte = pte_offset_kernel(pmd, vaddr);
pkmap_page_table = pte;
--
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