From 625bf73ed27f337ccc7d750087423df679a7f733 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Wed, 3 Jun 2020 15:57:37 -0700 Subject: parisc: simplify detection of memory zone boundaries free_area_init() only requires the definition of maximal PFN for each of the supported zone rater than calculation of actual zone sizes and the sizes of the holes between the zones. After removal of CONFIG_HAVE_MEMBLOCK_NODE_MAP the free_area_init() is available to all architectures. Using this function instead of free_area_init_node() simplifies the zone detection. Signed-off-by: Mike Rapoport Signed-off-by: Andrew Morton Tested-by: Hoan Tran [arm64] Cc: Baoquan He Cc: Brian Cain Cc: Catalin Marinas Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Ungerer Cc: Guan Xuetao Cc: Guo Ren Cc: Heiko Carstens Cc: Helge Deller Cc: "James E.J. Bottomley" Cc: Jonathan Corbet Cc: Ley Foon Tan Cc: Mark Salter Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Hocko Cc: Michal Simek Cc: Nick Hu Cc: Paul Walmsley Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Stafford Horne Cc: Thomas Bogendoerfer Cc: Tony Luck Cc: Vineet Gupta Cc: Yoshinori Sato Link: http://lkml.kernel.org/r/20200412194859.12663-12-rppt@kernel.org Signed-off-by: Linus Torvalds --- arch/parisc/mm/init.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) (limited to 'arch/parisc') diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 01d7071b23f7..cdd760d39e7c 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -675,27 +675,11 @@ static void __init gateway_init(void) static void __init parisc_bootmem_free(void) { - unsigned long zones_size[MAX_NR_ZONES] = { 0, }; - unsigned long holes_size[MAX_NR_ZONES] = { 0, }; - unsigned long mem_start_pfn = ~0UL, mem_end_pfn = 0, mem_size_pfn = 0; - int i; - - for (i = 0; i < npmem_ranges; i++) { - unsigned long start = pmem_ranges[i].start_pfn; - unsigned long size = pmem_ranges[i].pages; - unsigned long end = start + size; - - if (mem_start_pfn > start) - mem_start_pfn = start; - if (mem_end_pfn < end) - mem_end_pfn = end; - mem_size_pfn += size; - } + unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0, }; - zones_size[0] = mem_end_pfn - mem_start_pfn; - holes_size[0] = zones_size[0] - mem_size_pfn; + max_zone_pfn[0] = memblock_end_of_DRAM(); - free_area_init_node(0, zones_size, mem_start_pfn, holes_size); + free_area_init(max_zone_pfn); } void __init paging_init(void) -- cgit v1.2.3 From b0eae98c66fe4ccac3a5a79a1479c057f2c7cdd7 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Wed, 3 Jun 2020 16:01:01 -0700 Subject: mm/hugetlb: define a generic fallback for is_hugepage_only_range() There are multiple similar definitions for is_hugepage_only_range() on various platforms. Lets just add it's generic fallback definition for platforms that do not override. This help reduce code duplication. Signed-off-by: Anshuman Khandual Signed-off-by: Andrew Morton Acked-by: Mike Kravetz Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Tony Luck Cc: Fenghua Yu Cc: Thomas Bogendoerfer Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: Yoshinori Sato Cc: Rich Felker Cc: "David S. Miller" Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Link: http://lkml.kernel.org/r/1588907271-11920-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds --- arch/arm/include/asm/hugetlb.h | 6 ------ arch/arm64/include/asm/hugetlb.h | 6 ------ arch/ia64/include/asm/hugetlb.h | 1 + arch/mips/include/asm/hugetlb.h | 7 ------- arch/parisc/include/asm/hugetlb.h | 6 ------ arch/powerpc/include/asm/hugetlb.h | 1 + arch/riscv/include/asm/hugetlb.h | 6 ------ arch/s390/include/asm/hugetlb.h | 7 ------- arch/sh/include/asm/hugetlb.h | 6 ------ arch/sparc/include/asm/hugetlb.h | 6 ------ arch/x86/include/asm/hugetlb.h | 6 ------ include/linux/hugetlb.h | 9 +++++++++ 12 files changed, 11 insertions(+), 56 deletions(-) (limited to 'arch/parisc') diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h index 318dcf5921ab..9ecd516d1ff7 100644 --- a/arch/arm/include/asm/hugetlb.h +++ b/arch/arm/include/asm/hugetlb.h @@ -14,12 +14,6 @@ #include #include -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, unsigned long len) -{ - return 0; -} - static inline void arch_clear_hugepage_flags(struct page *page) { clear_bit(PG_dcache_clean, &page->flags); diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h index b88878ddc88b..8f58e052697a 100644 --- a/arch/arm64/include/asm/hugetlb.h +++ b/arch/arm64/include/asm/hugetlb.h @@ -17,12 +17,6 @@ extern bool arch_hugetlb_migration_supported(struct hstate *h); #endif -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, unsigned long len) -{ - return 0; -} - static inline void arch_clear_hugepage_flags(struct page *page) { clear_bit(PG_dcache_clean, &page->flags); diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h index 36cc0396b214..6ef50b9a4bdf 100644 --- a/arch/ia64/include/asm/hugetlb.h +++ b/arch/ia64/include/asm/hugetlb.h @@ -20,6 +20,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, return (REGION_NUMBER(addr) == RGN_HPAGE || REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE); } +#define is_hugepage_only_range is_hugepage_only_range #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h index 425bb6fc3bda..8b201e281f67 100644 --- a/arch/mips/include/asm/hugetlb.h +++ b/arch/mips/include/asm/hugetlb.h @@ -11,13 +11,6 @@ #include -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) -{ - return 0; -} - #define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE static inline int prepare_hugepage_range(struct file *file, unsigned long addr, diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h index 7cb595dcb7d7..411d9d867baa 100644 --- a/arch/parisc/include/asm/hugetlb.h +++ b/arch/parisc/include/asm/hugetlb.h @@ -12,12 +12,6 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - /* * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h index bd6504c28c2f..b167c869d72d 100644 --- a/arch/powerpc/include/asm/hugetlb.h +++ b/arch/powerpc/include/asm/hugetlb.h @@ -30,6 +30,7 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, return slice_is_hugepage_only_range(mm, addr, len); return 0; } +#define is_hugepage_only_range is_hugepage_only_range #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, diff --git a/arch/riscv/include/asm/hugetlb.h b/arch/riscv/include/asm/hugetlb.h index 728a5db66597..866f6ae6467c 100644 --- a/arch/riscv/include/asm/hugetlb.h +++ b/arch/riscv/include/asm/hugetlb.h @@ -5,12 +5,6 @@ #include #include -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - static inline void arch_clear_hugepage_flags(struct page *page) { } diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index de8f0bf5f238..7d27ea96ec2f 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -21,13 +21,6 @@ pte_t huge_ptep_get(pte_t *ptep); pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -static inline bool is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) -{ - return false; -} - /* * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h index 6f025fe18146..536ad2cb8aa4 100644 --- a/arch/sh/include/asm/hugetlb.h +++ b/arch/sh/include/asm/hugetlb.h @@ -5,12 +5,6 @@ #include #include -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - /* * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h index 3963f80d1cb3..a056fe1119f5 100644 --- a/arch/sparc/include/asm/hugetlb.h +++ b/arch/sparc/include/asm/hugetlb.h @@ -20,12 +20,6 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h index f65cfb48cfdd..cc98f79074d0 100644 --- a/arch/x86/include/asm/hugetlb.h +++ b/arch/x86/include/asm/hugetlb.h @@ -7,12 +7,6 @@ #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE) -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - static inline void arch_clear_hugepage_flags(struct page *page) { } diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 0c13706054ef..bf97b17ab206 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -591,6 +591,15 @@ static inline unsigned int blocks_per_huge_page(struct hstate *h) #include +#ifndef is_hugepage_only_range +static inline int is_hugepage_only_range(struct mm_struct *mm, + unsigned long addr, unsigned long len) +{ + return 0; +} +#define is_hugepage_only_range is_hugepage_only_range +#endif + #ifndef arch_make_huge_pte static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, struct page *page, int writable) -- cgit v1.2.3 From 5be993432821750f382809df5e20bf4c129b24f7 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Wed, 3 Jun 2020 16:01:05 -0700 Subject: mm/hugetlb: define a generic fallback for arch_clear_hugepage_flags() There are multiple similar definitions for arch_clear_hugepage_flags() on various platforms. Lets just add it's generic fallback definition for platforms that do not override. This help reduce code duplication. Signed-off-by: Anshuman Khandual Signed-off-by: Andrew Morton Acked-by: Mike Kravetz Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Tony Luck Cc: Fenghua Yu Cc: Thomas Bogendoerfer Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: Yoshinori Sato Cc: Rich Felker Cc: "David S. Miller" Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Link: http://lkml.kernel.org/r/1588907271-11920-4-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds --- arch/arm/include/asm/hugetlb.h | 1 + arch/arm64/include/asm/hugetlb.h | 1 + arch/ia64/include/asm/hugetlb.h | 4 ---- arch/mips/include/asm/hugetlb.h | 4 ---- arch/parisc/include/asm/hugetlb.h | 4 ---- arch/powerpc/include/asm/hugetlb.h | 4 ---- arch/riscv/include/asm/hugetlb.h | 4 ---- arch/s390/include/asm/hugetlb.h | 1 + arch/sh/include/asm/hugetlb.h | 1 + arch/sparc/include/asm/hugetlb.h | 4 ---- arch/x86/include/asm/hugetlb.h | 4 ---- include/linux/hugetlb.h | 5 +++++ 12 files changed, 9 insertions(+), 28 deletions(-) (limited to 'arch/parisc') diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h index 9ecd516d1ff7..d02d6ca88e92 100644 --- a/arch/arm/include/asm/hugetlb.h +++ b/arch/arm/include/asm/hugetlb.h @@ -18,5 +18,6 @@ static inline void arch_clear_hugepage_flags(struct page *page) { clear_bit(PG_dcache_clean, &page->flags); } +#define arch_clear_hugepage_flags arch_clear_hugepage_flags #endif /* _ASM_ARM_HUGETLB_H */ diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h index 8f58e052697a..94ba0c5bced2 100644 --- a/arch/arm64/include/asm/hugetlb.h +++ b/arch/arm64/include/asm/hugetlb.h @@ -21,6 +21,7 @@ static inline void arch_clear_hugepage_flags(struct page *page) { clear_bit(PG_dcache_clean, &page->flags); } +#define arch_clear_hugepage_flags arch_clear_hugepage_flags extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, struct page *page, int writable); diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h index 6ef50b9a4bdf..7e46ebde8c0c 100644 --- a/arch/ia64/include/asm/hugetlb.h +++ b/arch/ia64/include/asm/hugetlb.h @@ -28,10 +28,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } -static inline void arch_clear_hugepage_flags(struct page *page) -{ -} - #include #endif /* _ASM_IA64_HUGETLB_H */ diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h index 8b201e281f67..10e3be870df7 100644 --- a/arch/mips/include/asm/hugetlb.h +++ b/arch/mips/include/asm/hugetlb.h @@ -75,10 +75,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, return changed; } -static inline void arch_clear_hugepage_flags(struct page *page) -{ -} - #include #endif /* __ASM_HUGETLB_H */ diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h index 411d9d867baa..a69cf9efb0c1 100644 --- a/arch/parisc/include/asm/hugetlb.h +++ b/arch/parisc/include/asm/hugetlb.h @@ -42,10 +42,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty); -static inline void arch_clear_hugepage_flags(struct page *page) -{ -} - #include #endif /* _ASM_PARISC64_HUGETLB_H */ diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h index b167c869d72d..e6dfa63da552 100644 --- a/arch/powerpc/include/asm/hugetlb.h +++ b/arch/powerpc/include/asm/hugetlb.h @@ -61,10 +61,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty); -static inline void arch_clear_hugepage_flags(struct page *page) -{ -} - #include #else /* ! CONFIG_HUGETLB_PAGE */ diff --git a/arch/riscv/include/asm/hugetlb.h b/arch/riscv/include/asm/hugetlb.h index 866f6ae6467c..a5c2ca1d1cd8 100644 --- a/arch/riscv/include/asm/hugetlb.h +++ b/arch/riscv/include/asm/hugetlb.h @@ -5,8 +5,4 @@ #include #include -static inline void arch_clear_hugepage_flags(struct page *page) -{ -} - #endif /* _ASM_RISCV_HUGETLB_H */ diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index 7d27ea96ec2f..9ddf4a43a590 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -39,6 +39,7 @@ static inline void arch_clear_hugepage_flags(struct page *page) { clear_bit(PG_arch_1, &page->flags); } +#define arch_clear_hugepage_flags arch_clear_hugepage_flags static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned long sz) diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h index 536ad2cb8aa4..ae4de7b89210 100644 --- a/arch/sh/include/asm/hugetlb.h +++ b/arch/sh/include/asm/hugetlb.h @@ -30,6 +30,7 @@ static inline void arch_clear_hugepage_flags(struct page *page) { clear_bit(PG_dcache_clean, &page->flags); } +#define arch_clear_hugepage_flags arch_clear_hugepage_flags #include diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h index a056fe1119f5..53838a173f62 100644 --- a/arch/sparc/include/asm/hugetlb.h +++ b/arch/sparc/include/asm/hugetlb.h @@ -47,10 +47,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, return changed; } -static inline void arch_clear_hugepage_flags(struct page *page) -{ -} - #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h index cc98f79074d0..1721b1aadeb1 100644 --- a/arch/x86/include/asm/hugetlb.h +++ b/arch/x86/include/asm/hugetlb.h @@ -7,8 +7,4 @@ #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE) -static inline void arch_clear_hugepage_flags(struct page *page) -{ -} - #endif /* _ASM_X86_HUGETLB_H */ diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index bf97b17ab206..2e66b71c1236 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -600,6 +600,11 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, #define is_hugepage_only_range is_hugepage_only_range #endif +#ifndef arch_clear_hugepage_flags +static inline void arch_clear_hugepage_flags(struct page *page) { } +#define arch_clear_hugepage_flags arch_clear_hugepage_flags +#endif + #ifndef arch_make_huge_pte static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, struct page *page, int writable) -- cgit v1.2.3