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Mon, 12 Jun 2023 14:05:36 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::16]) by smtp.googlemail.com with ESMTPSA id s125-20020a817783000000b00569eb609458sm2757115ywc.81.2023.06.12.14.05.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jun 2023 14:05:36 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Hugh Dickins , "Vishal Moola (Oracle)" , Geert Uytterhoeven Subject: [PATCH v4 25/34] m68k: Convert various functions to use ptdescs Date: Mon, 12 Jun 2023 14:04:14 -0700 Message-Id: <20230612210423.18611-26-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230612210423.18611-1-vishal.moola@gmail.com> References: <20230612210423.18611-1-vishal.moola@gmail.com> MIME-Version: 1.0 X-Stat-Signature: 3wnmzgrujmxji1frb49yjjgg1p9p9i4p X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: CCF9C14001D X-Rspam-User: X-HE-Tag: 1686603937-29603 X-HE-Meta: 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 fn5EvLA7 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. Some of the functions use the *get*page*() helper functions. Convert these to use pagetable_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) Acked-by: Geert Uytterhoeven Acked-by: Mike Rapoport (IBM) --- arch/m68k/include/asm/mcf_pgalloc.h | 41 ++++++++++++++-------------- arch/m68k/include/asm/sun3_pgalloc.h | 8 +++--- arch/m68k/mm/motorola.c | 4 +-- 3 files changed, 27 insertions(+), 26 deletions(-) diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h index 5c2c0a864524..857949ac9431 100644 --- a/arch/m68k/include/asm/mcf_pgalloc.h +++ b/arch/m68k/include/asm/mcf_pgalloc.h @@ -7,20 +7,19 @@ extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - free_page((unsigned long) pte); + pagetable_free(virt_to_ptdesc(pte)); } extern const char bad_pmd_string[]; extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) { - unsigned long page = __get_free_page(GFP_DMA); + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | __GFP_ZERO, 0); - if (!page) + if (!ptdesc) return NULL; - memset((void *)page, 0, PAGE_SIZE); - return (pte_t *) (page); + return ptdesc_address(ptdesc); } extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) @@ -35,36 +34,36 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, unsigned long address) { - struct page *page = virt_to_page(pgtable); + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { - struct page *page = alloc_pages(GFP_DMA, 0); + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA, 0); pte_t *pte; - if (!page) + if (!ptdesc) return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); + if (!pagetable_pte_ctor(ptdesc)) { + pagetable_free(ptdesc); return NULL; } - pte = page_address(page); - clear_page(pte); + pte = ptdesc_address(ptdesc); + pagetable_clear(pte); return pte; } static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) { - struct page *page = virt_to_page(pgtable); + struct ptdesc *ptdesc = virt_to_ptdesc(pgtable); - pgtable_pte_page_dtor(page); - __free_page(page); + pagetable_pte_dtor(ptdesc); + pagetable_free(ptdesc); } /* @@ -75,16 +74,18 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - free_page((unsigned long) pgd); + pagetable_free(virt_to_ptdesc(pgd)); } static inline pgd_t *pgd_alloc(struct mm_struct *mm) { pgd_t *new_pgd; + struct ptdesc *ptdesc = pagetable_alloc(GFP_DMA | GFP_NOWARN, 0); - new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); - if (!new_pgd) + if (!ptdesc) return NULL; + new_pgd = ptdesc_address(ptdesc); + memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t)); memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT); return new_pgd; diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h index 198036aff519..ff48573db2c0 100644 --- a/arch/m68k/include/asm/sun3_pgalloc.h +++ b/arch/m68k/include/asm/sun3_pgalloc.h @@ -17,10 +17,10 @@ extern const char bad_pmd_string[]; -#define __pte_free_tlb(tlb,pte,addr) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ +#define __pte_free_tlb(tlb, pte, addr) \ +do { \ + pagetable_pte_dtor(page_ptdesc(pte)); \ + tlb_remove_page_ptdesc((tlb), page_ptdesc(pte)); \ } while (0) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index c75984e2d86b..594575a0780c 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -161,7 +161,7 @@ void *get_pointer_table(int type) * m68k doesn't have SPLIT_PTE_PTLOCKS for not having * SMP. */ - pgtable_pte_page_ctor(virt_to_page(page)); + pagetable_pte_ctor(virt_to_ptdesc(page)); } mmu_page_ctor(page); @@ -201,7 +201,7 @@ int free_pointer_table(void *table, int type) list_del(dp); mmu_page_dtor((void *)page); if (type == TABLE_PTE) - pgtable_pte_page_dtor(virt_to_page((void *)page)); + pagetable_pte_dtor(virt_to_ptdesc((void *)page)); free_page (page); return 1; } else if (ptable_list[type].next != dp) {