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[v3,05/15] riscv/pgtable: define PFN_PTE_SHIFT

Message ID 20240129124649.189745-6-david@redhat.com (mailing list archive)
State New
Headers show
Series mm/memory: optimize fork() with PTE-mapped THP | expand

Commit Message

David Hildenbrand Jan. 29, 2024, 12:46 p.m. UTC 
We want to make use of pte_next_pfn() outside of set_ptes(). Let's
simply define PFN_PTE_SHIFT, required by pte_next_pfn().

Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 arch/riscv/include/asm/pgtable.h | 2 ++
 1 file changed, 2 insertions(+)

Comments

Mike Rapoport Feb. 8, 2024, 6:14 a.m. UTC | #1 
On Mon, Jan 29, 2024 at 01:46:39PM +0100, David Hildenbrand wrote:
> We want to make use of pte_next_pfn() outside of set_ptes(). Let's
> simply define PFN_PTE_SHIFT, required by pte_next_pfn().
> 
> Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
> Signed-off-by: David Hildenbrand <david@redhat.com>

Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>

> ---
>  arch/riscv/include/asm/pgtable.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
> index 0c94260b5d0c..add5cd30ab34 100644
> --- a/arch/riscv/include/asm/pgtable.h
> +++ b/arch/riscv/include/asm/pgtable.h
> @@ -523,6 +523,8 @@ static inline void __set_pte_at(pte_t *ptep, pte_t pteval)
>  	set_pte(ptep, pteval);
>  }
>  
> +#define PFN_PTE_SHIFT		_PAGE_PFN_SHIFT
> +
>  static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
>  		pte_t *ptep, pte_t pteval, unsigned int nr)
>  {
> -- 
> 2.43.0
> 
>
diff mbox series

Patch

diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 0c94260b5d0c..add5cd30ab34 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -523,6 +523,8 @@  static inline void __set_pte_at(pte_t *ptep, pte_t pteval)
 	set_pte(ptep, pteval);
 }
 
+#define PFN_PTE_SHIFT		_PAGE_PFN_SHIFT
+
 static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
 		pte_t *ptep, pte_t pteval, unsigned int nr)
 {