| Message ID | 20191024093716.49420-10-steven.price@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Generic page walk and ptdump | expand |
From: Steven Price <steven.price@arm.com> Date: Thu, 24 Oct 2019 10:37:03 +0100 > walk_page_range() is going to be allowed to walk page tables other than > those of user space. For this it needs to know when it has reached a > 'leaf' entry in the page tables. This information is provided by the > p?d_leaf() functions/macros. > > For sparc 64 bit, pmd_large() and pud_large() are already provided, so > add macros to provide the p?d_leaf names required by the generic code. > > CC: "David S. Miller" <davem@davemloft.net> > CC: sparclinux@vger.kernel.org > Signed-off-by: Steven Price <steven.price@arm.com> Acked-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index 6ae8016ef4ec..43206652eaf5 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -683,6 +683,7 @@ static inline unsigned long pte_special(pte_t pte) return pte_val(pte) & _PAGE_SPECIAL; } +#define pmd_leaf pmd_large static inline unsigned long pmd_large(pmd_t pmd) { pte_t pte = __pte(pmd_val(pmd)); @@ -867,6 +868,7 @@ static inline unsigned long pud_page_vaddr(pud_t pud) /* only used by the stubbed out hugetlb gup code, should never be called */ #define pgd_page(pgd) NULL +#define pud_leaf pud_large static inline unsigned long pud_large(pud_t pud) { pte_t pte = __pte(pud_val(pud));
walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information is provided by the p?d_leaf() functions/macros. For sparc 64 bit, pmd_large() and pud_large() are already provided, so add macros to provide the p?d_leaf names required by the generic code. CC: "David S. Miller" <davem@davemloft.net> CC: sparclinux@vger.kernel.org Signed-off-by: Steven Price <steven.price@arm.com> --- arch/sparc/include/asm/pgtable_64.h | 2 ++ 1 file changed, 2 insertions(+)