From 9999e48639b3cecb08ffb37358bcba3b48161b29 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 08:50:17 +0000
Subject: [PATCH] add ax88772_rst
---
kernel/arch/mips/include/asm/pgtable-64.h | 71 +++++++++--------------------------
1 files changed, 18 insertions(+), 53 deletions(-)
diff --git a/kernel/arch/mips/include/asm/pgtable-64.h b/kernel/arch/mips/include/asm/pgtable-64.h
index 813dfe5..b865edf 100644
--- a/kernel/arch/mips/include/asm/pgtable-64.h
+++ b/kernel/arch/mips/include/asm/pgtable-64.h
@@ -17,13 +17,12 @@
#include <asm/cachectl.h>
#include <asm/fixmap.h>
-#define __ARCH_USE_5LEVEL_HACK
#if CONFIG_PGTABLE_LEVELS == 2
#include <asm-generic/pgtable-nopmd.h>
#elif CONFIG_PGTABLE_LEVELS == 3
#include <asm-generic/pgtable-nopud.h>
#else
-#include <asm-generic/5level-fixup.h>
+#include <asm-generic/pgtable-nop4d.h>
#endif
/*
@@ -188,47 +187,42 @@
/*
* Empty pgd entries point to the invalid_pud_table.
*/
-static inline int pgd_none(pgd_t pgd)
+static inline int p4d_none(p4d_t p4d)
{
- return pgd_val(pgd) == (unsigned long)invalid_pud_table;
+ return p4d_val(p4d) == (unsigned long)invalid_pud_table;
}
-static inline int pgd_bad(pgd_t pgd)
+static inline int p4d_bad(p4d_t p4d)
{
- if (unlikely(pgd_val(pgd) & ~PAGE_MASK))
+ if (unlikely(p4d_val(p4d) & ~PAGE_MASK))
return 1;
return 0;
}
-static inline int pgd_present(pgd_t pgd)
+static inline int p4d_present(p4d_t p4d)
{
- return pgd_val(pgd) != (unsigned long)invalid_pud_table;
+ return p4d_val(p4d) != (unsigned long)invalid_pud_table;
}
-static inline void pgd_clear(pgd_t *pgdp)
+static inline void p4d_clear(p4d_t *p4dp)
{
- pgd_val(*pgdp) = (unsigned long)invalid_pud_table;
+ p4d_val(*p4dp) = (unsigned long)invalid_pud_table;
}
-#define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))
-
-static inline unsigned long pgd_page_vaddr(pgd_t pgd)
+static inline pud_t *p4d_pgtable(p4d_t p4d)
{
- return pgd_val(pgd);
+ return (pud_t *)p4d_val(p4d);
}
-#define pgd_phys(pgd) virt_to_phys((void *)pgd_val(pgd))
-#define pgd_page(pgd) (pfn_to_page(pgd_phys(pgd) >> PAGE_SHIFT))
+#define p4d_phys(p4d) virt_to_phys((void *)p4d_val(p4d))
+#define p4d_page(p4d) (pfn_to_page(p4d_phys(p4d) >> PAGE_SHIFT))
-static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
-{
- return (pud_t *)pgd_page_vaddr(*pgd) + pud_index(address);
-}
+#define p4d_index(address) (((address) >> P4D_SHIFT) & (PTRS_PER_P4D - 1))
-static inline void set_pgd(pgd_t *pgd, pgd_t pgdval)
+static inline void set_p4d(p4d_t *p4d, p4d_t p4dval)
{
- *pgd = pgdval;
+ *p4d = p4dval;
}
#endif
@@ -319,44 +313,15 @@
#define pfn_pmd(pfn, prot) __pmd(((pfn) << _PFN_SHIFT) | pgprot_val(prot))
#endif
-#define __pgd_offset(address) pgd_index(address)
-#define __pud_offset(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
-#define __pmd_offset(address) pmd_index(address)
-
-/* to find an entry in a kernel page-table-directory */
-#define pgd_offset_k(address) pgd_offset(&init_mm, address)
-
-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
-#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
-
-/* to find an entry in a page-table-directory */
-#define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr))
-
#ifndef __PAGETABLE_PMD_FOLDED
-static inline unsigned long pud_page_vaddr(pud_t pud)
+static inline pmd_t *pud_pgtable(pud_t pud)
{
- return pud_val(pud);
+ return (pmd_t *)pud_val(pud);
}
#define pud_phys(pud) virt_to_phys((void *)pud_val(pud))
#define pud_page(pud) (pfn_to_page(pud_phys(pud) >> PAGE_SHIFT))
-/* Find an entry in the second-level page table.. */
-static inline pmd_t *pmd_offset(pud_t * pud, unsigned long address)
-{
- return (pmd_t *) pud_page_vaddr(*pud) + pmd_index(address);
-}
#endif
-
-/* Find an entry in the third-level page table.. */
-#define __pte_offset(address) \
- (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
-#define pte_offset(dir, address) \
- ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
-#define pte_offset_kernel(dir, address) \
- ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
-#define pte_offset_map(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_unmap(pte) ((void)(pte))
/*
* Initialize a new pgd / pmd table with invalid pointers.
--
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