| Message ID | 20240122194200.381241-5-david@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mm/memory: optimize fork() with PTE-mapped THP | expand |
Hi David, On 22/01/2024 20:41, David Hildenbrand wrote: > We want to make use of pte_next_pfn() outside of set_ptes(). Let's > simpliy define PFN_PTE_SHIFT, required by pte_next_pfn(). > > Signed-off-by: David Hildenbrand <david@redhat.com> > --- > 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 0c94260b5d0c1..add5cd30ab34d 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) > { There is a typo in the commit title: risc -> riscv. Otherwise, this is right so: Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Thanks, Alex
On 22.01.24 21:03, Alexandre Ghiti wrote: > Hi David, > > On 22/01/2024 20:41, David Hildenbrand wrote: >> We want to make use of pte_next_pfn() outside of set_ptes(). Let's >> simpliy define PFN_PTE_SHIFT, required by pte_next_pfn(). >> >> Signed-off-by: David Hildenbrand <david@redhat.com> >> --- >> 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 0c94260b5d0c1..add5cd30ab34d 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) >> { > > > There is a typo in the commit title: risc -> riscv. Otherwise, this is > right so: Whops :) > > Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Thanks!
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 0c94260b5d0c1..add5cd30ab34d 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) {
We want to make use of pte_next_pfn() outside of set_ptes(). Let's simpliy define PFN_PTE_SHIFT, required by pte_next_pfn(). Signed-off-by: David Hildenbrand <david@redhat.com> --- arch/riscv/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+)