add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/arch/s390/mm/pgtable.c
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@@ -19,12 +19,30 @@
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 #include <linux/ksm.h>
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 #include <linux/mman.h>
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21
 
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-#include <asm/pgtable.h>
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-#include <asm/pgalloc.h>
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 #include <asm/tlb.h>
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 #include <asm/tlbflush.h>
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 #include <asm/mmu_context.h>
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 #include <asm/page-states.h>
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+
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+pgprot_t pgprot_writecombine(pgprot_t prot)
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+{
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+	/*
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+	 * mio_wb_bit_mask may be set on a different CPU, but it is only set
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+	 * once at init and only read afterwards.
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+	 */
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+	return __pgprot(pgprot_val(prot) | mio_wb_bit_mask);
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+}
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+EXPORT_SYMBOL_GPL(pgprot_writecombine);
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+
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+pgprot_t pgprot_writethrough(pgprot_t prot)
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+{
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+	/*
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+	 * mio_wb_bit_mask may be set on a different CPU, but it is only set
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+	 * once at init and only read afterwards.
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+	 */
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+	return __pgprot(pgprot_val(prot) & ~mio_wb_bit_mask);
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+}
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+EXPORT_SYMBOL_GPL(pgprot_writethrough);
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 static inline void ptep_ipte_local(struct mm_struct *mm, unsigned long addr,
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 				   pte_t *ptep, int nodat)
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@@ -301,12 +319,13 @@
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 }
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 EXPORT_SYMBOL(ptep_xchg_lazy);
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-pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
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+pte_t ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr,
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 			     pte_t *ptep)
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 {
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 	pgste_t pgste;
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 	pte_t old;
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 	int nodat;
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+	struct mm_struct *mm = vma->vm_mm;
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 	preempt_disable();
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 	pgste = ptep_xchg_start(mm, addr, ptep);
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@@ -318,12 +337,12 @@
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 	}
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 	return old;
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 }
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-EXPORT_SYMBOL(ptep_modify_prot_start);
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-void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
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-			     pte_t *ptep, pte_t pte)
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+void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
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+			     pte_t *ptep, pte_t old_pte, pte_t pte)
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 {
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 	pgste_t pgste;
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+	struct mm_struct *mm = vma->vm_mm;
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 	if (!MACHINE_HAS_NX)
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 		pte_val(pte) &= ~_PAGE_NOEXEC;
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@@ -337,7 +356,6 @@
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 	}
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 	preempt_enable();
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 }
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-EXPORT_SYMBOL(ptep_modify_prot_commit);
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 static inline void pmdp_idte_local(struct mm_struct *mm,
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 				   unsigned long addr, pmd_t *pmdp)
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@@ -716,7 +734,7 @@
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 	pgste_val(pgste) |= PGSTE_GR_BIT | PGSTE_GC_BIT;
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 	ptev = pte_val(*ptep);
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 	if (!(ptev & _PAGE_INVALID) && (ptev & _PAGE_WRITE))
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-		page_set_storage_key(ptev & PAGE_MASK, PAGE_DEFAULT_KEY, 1);
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+		page_set_storage_key(ptev & PAGE_MASK, PAGE_DEFAULT_KEY, 0);
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 	pgste_set_unlock(ptep, pgste);
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 	preempt_enable();
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 }