search for: pte_free

...t_op op; + + kmap_flush_unused(); + op.cmd = MMUEXT_PIN_L1_TABLE; + op.arg1.mfn = pfn_to_mfn(page_to_pfn(pte)); + BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0); + } #else pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); +#endif if (pte) { SetPageForeign(pte, pte_free); set_page_count(pte, 1); } -#endif return pte; } void pte_free(struct page *pte) { - unsigned long va = (unsigned long)__va(page_to_pfn(pte)<<PAGE_SHIFT); + unsigned long pfn = page_to_pfn(pte); - if (!pte_write(*virt_to_ptep(va))) - BUG_ON(HYPERVISOR_update_va_mapping( - va...

...\ + SetPagePTE(pte); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -33,7 +41,11 @@ static inline void pte_free(struct page } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + tlb_remove_page((tlb),(pte)); \ + ClearPagePTE(pte); \ +} while (0) #ifdef CONFIG_X86_PAE /* Index: linux-2.6.13/include/asm-i386/mach-default/mach_pgalloc.h...

...\ + SetPagePTE(pte); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -33,7 +41,11 @@ static inline void pte_free(struct page } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + tlb_remove_page((tlb),(pte)); \ + ClearPagePTE(pte); \ +} while (0) #ifdef CONFIG_X86_PAE /* Index: linux-2.6.13/include/asm-i386/mach-default/mach_pgalloc.h...

...if (!is_huge_zero_pmd(*pmdp)) + goto unlock_abort; + flush = true; + } else if (!pmd_none(*pmdp)) + goto unlock_abort; + + get_page(page); + page_add_new_anon_rmap(page, vma, haddr, true); + if (!is_device_private_page(page)) + lru_cache_add_active_or_unevictable(page, vma); + if (flush) { + pte_free(mm, pgtable); + flush_cache_range(vma, haddr, haddr + HPAGE_PMD_SIZE); + pmdp_invalidate(vma, haddr, pmdp); + } else { + pgtable_trans_huge_deposit(mm, pmdp, pgtable); + mm_inc_nr_ptes(mm); + } + set_pmd_at(mm, haddr, pmdp, entry); + update_mmu_cache_pmd(vma, haddr, pmdp); + add_mm_counter(mm,...

...lloc_pt(page_to_pfn(pte)); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -32,7 +50,11 @@ static inline void pte_free(struct page } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + paravirt_release_pt(page_to_pfn(pte)); \ + tlb_remove_page((tlb),(pte)); \ +} while (0) #ifdef CONFIG_X86_PAE /*

...lloc_pt(page_to_pfn(pte)); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -32,7 +50,11 @@ static inline void pte_free(struct page } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + paravirt_release_pt(page_to_pfn(pte)); \ + tlb_remove_page((tlb),(pte)); \ +} while (0) #ifdef CONFIG_X86_PAE /*

...lloc_pt(page_to_pfn(pte)); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -32,7 +50,11 @@ static inline void pte_free(struct page } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + paravirt_release_pt(page_to_pfn(pte)); \ + tlb_remove_page((tlb),(pte)); \ +} while (0) #ifdef CONFIG_X86_PAE /*

...lloc_pt(page_to_pfn(pte)); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -32,7 +50,11 @@ static inline void pte_free(struct page } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + paravirt_release_pt(page_to_pfn(pte)); \ + tlb_remove_page((tlb),(pte)); \ +} while (0) #ifdef CONFIG_X86_PAE /*

...rt; > + flush = true; > + } else if (!pmd_none(*pmdp)) > + goto unlock_abort; > + > + get_page(page); > + page_add_new_anon_rmap(page, vma, haddr, true); > + if (!is_device_private_page(page)) > + lru_cache_add_active_or_unevictable(page, vma); > + if (flush) { > + pte_free(mm, pgtable); > + flush_cache_range(vma, haddr, haddr + HPAGE_PMD_SIZE); > + pmdp_invalidate(vma, haddr, pmdp); > + } else { > + pgtable_trans_huge_deposit(mm, pmdp, pgtable); > + mm_inc_nr_ptes(mm); > + } > + set_pmd_at(mm, haddr, pmdp, entry); > + update_mmu_cache_pmd(...

Is there any real use in having a ctor/dtor for the pgd cache? Given that all pgd allocation happens via pgd_alloc/pgd_free, why not just fold the [cd]tor in? I'm asking because Xen wants pgd[3] to be unshared in the PAE case, and it looks to me like the easiest way to handle that is by making pgd_alloc/free pv-ops and doing the appropriate thing in the Xen code. Would need to sort out the

Is there any real use in having a ctor/dtor for the pgd cache? Given that all pgd allocation happens via pgd_alloc/pgd_free, why not just fold the [cd]tor in? I'm asking because Xen wants pgd[3] to be unshared in the PAE case, and it looks to me like the easiest way to handle that is by making pgd_alloc/free pv-ops and doing the appropriate thing in the Xen code. Would need to sort out the

...if (!is_huge_zero_pmd(*pmdp)) + goto unlock_abort; + flush = true; + } else if (!pmd_none(*pmdp)) + goto unlock_abort; + + get_page(page); + page_add_new_anon_rmap(page, vma, haddr, true); + if (!is_zone_device_page(page)) + lru_cache_add_inactive_or_unevictable(page, vma); + if (flush) { + pte_free(mm, pgtable); + flush_cache_range(vma, haddr, haddr + HPAGE_PMD_SIZE); + pmdp_invalidate(vma, haddr, pmdp); + } else { + pgtable_trans_huge_deposit(mm, pmdp, pgtable); + mm_inc_nr_ptes(mm); + } + set_pmd_at(mm, haddr, pmdp, entry); + update_mmu_cache_pmd(vma, haddr, pmdp); + add_mm_counter(mm,...

These patches apply to linux-5.8.0-rc1. Patches 1-3 should probably go into 5.8, the others can be queued for 5.9. Patches 4-6 improve the HMM self tests. Patch 7-8 prepare nouveau for the meat of this series which adds support and testing for compound page mapping of system memory (patches 9-11) and compound page migration to device private memory (patches 12-16). Since these changes are split

...tup_pte(page_to_pfn(pte)); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -33,7 +41,11 @@ static inline void pte_free(struct page } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + tlb_remove_page((tlb),(pte)); \ + mach_release_pte(page_to_pfn(pte)); \ +} while (0) #ifdef CONFIG_X86_PAE /* Index: linux-2.6.16-rc5/include/asm-i386/pgtable-2...

...tup_pte(page_to_pfn(pte)); \ set_pmd(pmd, __pmd(_PAGE_TABLE + \ ((unsigned long long)page_to_pfn(pte) << \ - (unsigned long long) PAGE_SHIFT))) + (unsigned long long) PAGE_SHIFT))); \ +} while (0) + /* * Allocate and free page tables. */ @@ -33,7 +41,11 @@ static inline void pte_free(struct page } -#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) +#define __pte_free_tlb(tlb,pte) \ +do { \ + tlb_remove_page((tlb),(pte)); \ + mach_release_pte(page_to_pfn(pte)); \ +} while (0) #ifdef CONFIG_X86_PAE /* Index: linux-2.6.16-rc5/include/asm-i386/pgtable-2...

This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. Earlier versions were posted previously [1] and [2]. The patches apply cleanly to the linux-mm 5.10.0-rc2 tree. There are a lot of other THP patches being posted. I don't think there are any semantic conflicts but there may be some merge conflicts depending on

This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. An earlier version was posted previously [1]. This version now supports splitting a THP midway in the migration process which led to a number of changes. The patches apply cleanly to the current linux-mm tree. Since there are a couple of patches in linux-mm from Dan

I''m sure everyone has seen the drop of VMI patches for Linux at this point, but just in case, the link is included below. I''ve read this version of the VMI spec and have made my way through most of the patches. While I wasn''t really that impressed with the first spec wrt Xen, the second version seems to be much more palatable. Specifically, the code inlining and