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5a392e991d
The generic implementation of pte_{alloc_one,free}_kernel now calls the
[cd]tor. Align the m68k/ColdFire implementation of those functions by
calling the [cd]tor explicitly.
Link: https://lkml.kernel.org/r/20250408095222.860601-5-kevin.brodsky@arm.com
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Linus Waleij <linus.walleij@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: <x86@kernel.org>
Cc: Yang Shi <yang@os.amperecomputing.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef M68K_MCF_PGALLOC_H
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#define M68K_MCF_PGALLOC_H
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#include <asm/tlb.h>
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#include <asm/tlbflush.h>
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static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
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{
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pagetable_dtor_free(virt_to_ptdesc(pte));
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}
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extern const char bad_pmd_string[];
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static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
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{
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struct ptdesc *ptdesc = pagetable_alloc((GFP_DMA | __GFP_ZERO) &
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~__GFP_HIGHMEM, 0);
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if (!ptdesc)
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return NULL;
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if (!pagetable_pte_ctor(mm, ptdesc)) {
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pagetable_free(ptdesc);
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return NULL;
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}
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return ptdesc_address(ptdesc);
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}
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extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address)
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{
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return (pmd_t *) pgd;
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}
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#define pmd_populate(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte))
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#define pmd_populate_kernel pmd_populate
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static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable,
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unsigned long address)
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{
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struct ptdesc *ptdesc = virt_to_ptdesc(pgtable);
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pagetable_dtor(ptdesc);
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pagetable_free(ptdesc);
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}
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static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
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{
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struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0);
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pte_t *pte;
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if (!ptdesc)
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return NULL;
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if (!pagetable_pte_ctor(mm, ptdesc)) {
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pagetable_free(ptdesc);
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return NULL;
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}
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pte = ptdesc_address(ptdesc);
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return pte;
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}
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static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable)
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{
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struct ptdesc *ptdesc = virt_to_ptdesc(pgtable);
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pagetable_dtor(ptdesc);
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pagetable_free(ptdesc);
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}
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/*
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* In our implementation, each pgd entry contains 1 pmd that is never allocated
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* or freed. pgd_present is always 1, so this should never be called. -NL
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*/
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#define pmd_free(mm, pmd) BUG()
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static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
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{
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pagetable_dtor_free(virt_to_ptdesc(pgd));
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}
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static inline pgd_t *pgd_alloc(struct mm_struct *mm)
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{
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pgd_t *new_pgd;
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struct ptdesc *ptdesc = pagetable_alloc((GFP_DMA | __GFP_NOWARN) &
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~__GFP_HIGHMEM, 0);
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if (!ptdesc)
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return NULL;
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pagetable_pgd_ctor(ptdesc);
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new_pgd = ptdesc_address(ptdesc);
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memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t));
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memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT);
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return new_pgd;
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}
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#endif /* M68K_MCF_PGALLOC_H */
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