Messages in this thread Patch in this message |  | | From | Steven Price <> | Subject | [PATCH v17 06/23] powerpc: mm: Add p?d_leaf() definitions | Date | Wed, 18 Dec 2019 16:23:45 +0000 |
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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 powerpc p?d_is_leaf() functions already exist. Export them using the new p?d_leaf() name.
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: Paul Mackerras <paulus@samba.org> CC: Michael Ellerman <mpe@ellerman.id.au> CC: linuxppc-dev@lists.ozlabs.org CC: kvm-ppc@vger.kernel.org Signed-off-by: Steven Price <steven.price@arm.com> --- arch/powerpc/include/asm/book3s/64/pgtable.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index b01624e5c467..201a69e6a355 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -1355,18 +1355,21 @@ static inline bool is_pte_rw_upgrade(unsigned long old_val, unsigned long new_va * Like pmd_huge() and pmd_large(), but works regardless of config options */ #define pmd_is_leaf pmd_is_leaf +#define pmd_leaf pmd_is_leaf static inline bool pmd_is_leaf(pmd_t pmd) { return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE)); } #define pud_is_leaf pud_is_leaf +#define pud_leaf pud_is_leaf static inline bool pud_is_leaf(pud_t pud) { return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE)); } #define pgd_is_leaf pgd_is_leaf +#define pgd_leaf pgd_is_leaf static inline bool pgd_is_leaf(pgd_t pgd) { return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE)); -- 2.20.1
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