From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/arch/m68k/include/asm/motorola_pgalloc.h | 88 ++++++++++++++++++--------------------------
1 files changed, 36 insertions(+), 52 deletions(-)
diff --git a/kernel/arch/m68k/include/asm/motorola_pgalloc.h b/kernel/arch/m68k/include/asm/motorola_pgalloc.h
index 7859a86..b4fc3b4 100644
--- a/kernel/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/kernel/arch/m68k/include/asm/motorola_pgalloc.h
@@ -5,93 +5,77 @@
#include <asm/tlb.h>
#include <asm/tlbflush.h>
-extern pmd_t *get_pointer_table(void);
-extern int free_pointer_table(pmd_t *);
+extern void mmu_page_ctor(void *page);
+extern void mmu_page_dtor(void *page);
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
+enum m68k_table_types {
+ TABLE_PGD = 0,
+ TABLE_PMD = 0, /* same size as PGD */
+ TABLE_PTE = 1,
+};
+
+extern void init_pointer_table(void *table, int type);
+extern void *get_pointer_table(int type);
+extern int free_pointer_table(void *table, int type);
+
+/*
+ * Allocate and free page tables. The xxx_kernel() versions are
+ * used to allocate a kernel page table - this turns on ASN bits
+ * if any.
+ */
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
{
- pte_t *pte;
-
- pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
- if (pte) {
- __flush_page_to_ram(pte);
- flush_tlb_kernel_page(pte);
- nocache_page(pte);
- }
-
- return pte;
+ return get_pointer_table(TABLE_PTE);
}
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
- cache_page(pte);
- free_page((unsigned long) pte);
+ free_pointer_table(pte, TABLE_PTE);
}
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
{
- struct page *page;
- pte_t *pte;
-
- page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
- if(!page)
- return NULL;
- if (!pgtable_page_ctor(page)) {
- __free_page(page);
- return NULL;
- }
-
- pte = kmap(page);
- __flush_page_to_ram(pte);
- flush_tlb_kernel_page(pte);
- nocache_page(pte);
- kunmap(page);
- return page;
+ return get_pointer_table(TABLE_PTE);
}
-static inline void pte_free(struct mm_struct *mm, pgtable_t page)
+static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable)
{
- pgtable_page_dtor(page);
- cache_page(kmap(page));
- kunmap(page);
- __free_page(page);
+ free_pointer_table(pgtable, TABLE_PTE);
}
-static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
+static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable,
unsigned long address)
{
- pgtable_page_dtor(page);
- cache_page(kmap(page));
- kunmap(page);
- __free_page(page);
+ free_pointer_table(pgtable, TABLE_PTE);
}
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
- return get_pointer_table();
+ return get_pointer_table(TABLE_PMD);
}
static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
- return free_pointer_table(pmd);
+ return free_pointer_table(pmd, TABLE_PMD);
}
static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
unsigned long address)
{
- return free_pointer_table(pmd);
+ return free_pointer_table(pmd, TABLE_PMD);
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
- pmd_free(mm, (pmd_t *)pgd);
+ free_pointer_table(pgd, TABLE_PGD);
}
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
- return (pgd_t *)get_pointer_table();
+ return get_pointer_table(TABLE_PGD);
}
@@ -102,13 +86,13 @@
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page)
{
- pmd_set(pmd, page_address(page));
+ pmd_set(pmd, page);
}
-#define pmd_pgtable(pmd) pmd_page(pmd)
+#define pmd_pgtable(pmd) ((pgtable_t)pmd_page_vaddr(pmd))
-static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
- pgd_set(pgd, pmd);
+ pud_set(pud, pmd);
}
#endif /* _MOTOROLA_PGALLOC_H */
--
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