[PATCH v2 20/34] arm: Convert various functions to use ptdescs
From: Vishal Moola (Oracle) <hidden>
Date: 2023-05-01 19:29:13
Also in:
kvm, linux-arch, linux-arm-kernel, linux-m68k, linux-mips, linux-mm, linux-s390, linux-sh, linux-um, linuxppc-dev, loongarch, sparclinux, xen-devel
Subsystem:
arm port, mmu gather and tlb invalidation, the rest · Maintainers:
Russell King, Will Deacon, "Aneesh Kumar K.V", Andrew Morton, Nick Piggin, Peter Zijlstra, Linus Torvalds
As part of the conversions to replace pgtable constructor/destructors with ptdesc equivalents, convert various page table functions to use ptdescs. late_alloc() also uses the __get_free_pages() helper function. Convert this to use ptdesc_alloc() and ptdesc_address() instead to help standardize page tables further. Signed-off-by: Vishal Moola (Oracle) <redacted> --- arch/arm/include/asm/tlb.h | 12 +++++++----- arch/arm/mm/mmu.c | 6 +++--- 2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
index b8cbe03ad260..9ab8a6929d35 100644
--- a/arch/arm/include/asm/tlb.h
+++ b/arch/arm/include/asm/tlb.h@@ -39,7 +39,9 @@ static inline void __tlb_remove_table(void *_table) static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr) { - pgtable_pte_page_dtor(pte); + struct ptdesc *ptdesc = page_ptdesc(pte); + + ptdesc_pte_dtor(ptdesc); #ifndef CONFIG_ARM_LPAE /*
@@ -50,17 +52,17 @@ __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr) __tlb_adjust_range(tlb, addr - PAGE_SIZE, 2 * PAGE_SIZE); #endif - tlb_remove_table(tlb, pte); + tlb_remove_ptdesc(tlb, ptdesc); } static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr) { #ifdef CONFIG_ARM_LPAE - struct page *page = virt_to_page(pmdp); + struct ptdesc *ptdesc = virt_to_ptdesc(pmdp); - pgtable_pmd_page_dtor(page); - tlb_remove_table(tlb, page); + ptdesc_pmd_dtor(ptdesc); + tlb_remove_ptdesc(tlb, ptdesc); #endif }
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 463fc2a8448f..7add505bd797 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c@@ -737,11 +737,11 @@ static void __init *early_alloc(unsigned long sz) static void *__init late_alloc(unsigned long sz) { - void *ptr = (void *)__get_free_pages(GFP_PGTABLE_KERNEL, get_order(sz)); + void *ptdesc = ptdesc_alloc(GFP_PGTABLE_KERNEL, get_order(sz)); - if (!ptr || !pgtable_pte_page_ctor(virt_to_page(ptr))) + if (!ptdesc || !ptdesc_pte_ctor(ptdesc)) BUG(); - return ptr; + return ptdesc; } static pte_t * __init arm_pte_alloc(pmd_t *pmd, unsigned long addr,
--
2.39.2
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