From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp
---
kernel/arch/nios2/include/asm/pgtable.h | 33 +++++----------------------------
1 files changed, 5 insertions(+), 28 deletions(-)
diff --git a/kernel/arch/nios2/include/asm/pgtable.h b/kernel/arch/nios2/include/asm/pgtable.h
index db4f7d1..2600d76 100644
--- a/kernel/arch/nios2/include/asm/pgtable.h
+++ b/kernel/arch/nios2/include/asm/pgtable.h
@@ -22,7 +22,6 @@
#include <asm/tlbflush.h>
#include <asm/pgtable-bits.h>
-#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#define FIRST_USER_ADDRESS 0UL
@@ -100,12 +99,8 @@
*/
static inline void set_pmd(pmd_t *pmdptr, pmd_t pmdval)
{
- pmdptr->pud.pgd.pgd = pmdval.pud.pgd.pgd;
+ *pmdptr = pmdval;
}
-
-/* to find an entry in a page-table-directory */
-#define pgd_index(addr) (((addr) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
-#define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr))
static inline int pte_write(pte_t pte) \
{ return pte_val(pte) & _PAGE_WRITE; }
@@ -113,7 +108,6 @@
{ return pte_val(pte) & _PAGE_DIRTY; }
static inline int pte_young(pte_t pte) \
{ return pte_val(pte) & _PAGE_ACCESSED; }
-static inline int pte_special(pte_t pte) { return 0; }
#define pgprot_noncached pgprot_noncached
@@ -167,8 +161,6 @@
pte_val(pte) |= _PAGE_DIRTY;
return pte;
}
-
-static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
static inline pte_t pte_mkyoung(pte_t pte)
{
@@ -232,7 +224,6 @@
pte_val(null) = (addr >> PAGE_SHIFT) & 0xf;
set_pte_at(mm, addr, ptep, null);
- flush_tlb_one(addr);
}
/*
@@ -241,27 +232,17 @@
*/
#define mk_pte(page, prot) (pfn_pte(page_to_pfn(page), prot))
-#define pte_unmap(pte) do { } while (0)
-
/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.
*/
#define pmd_phys(pmd) virt_to_phys((void *)pmd_val(pmd))
#define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
-#define pmd_page_vaddr(pmd) pmd_val(pmd)
-#define pte_offset_map(dir, addr) \
- ((pte_t *) page_address(pmd_page(*dir)) + \
- (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
-
-/* to find an entry in a kernel page-table-directory */
-#define pgd_offset_k(addr) pgd_offset(&init_mm, addr)
-
-/* Get the address to the PTE for a vaddr in specific directory */
-#define pte_offset_kernel(dir, addr) \
- ((pte_t *) pmd_page_vaddr(*(dir)) + \
- (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
+static inline unsigned long pmd_page_vaddr(pmd_t pmd)
+{
+ return pmd_val(pmd);
+}
#define pte_ERROR(e) \
pr_err("%s:%d: bad pte %08lx.\n", \
@@ -289,10 +270,6 @@
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define kern_addr_valid(addr) (1)
-
-#include <asm-generic/pgtable.h>
-
-#define pgtable_cache_init() do { } while (0)
extern void __init paging_init(void);
extern void __init mmu_init(void);
--
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