On 06/10/2019 10:08 AM, Nicholas Piggin wrote: > Applying huge vmap to vmalloc requires vmalloc_to_page to walk huge > pages. Define pud_large and pmd_large to support this. > > Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx> > --- > arch/arm64/include/asm/pgtable.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h > index 2c41b04708fe..30fe7b344bf7 100644 > --- a/arch/arm64/include/asm/pgtable.h > +++ b/arch/arm64/include/asm/pgtable.h > @@ -428,6 +428,7 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, > PMD_TYPE_TABLE) > #define pmd_sect(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \ > PMD_TYPE_SECT) > +#define pmd_large(pmd) pmd_sect(pmd) > > #if defined(CONFIG_ARM64_64K_PAGES) || CONFIG_PGTABLE_LEVELS < 3 > #define pud_sect(pud) (0) > @@ -438,6 +439,7 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, > #define pud_table(pud) ((pud_val(pud) & PUD_TYPE_MASK) == \ > PUD_TYPE_TABLE) > #endif > +#define pud_large(pud) pud_sect(pud) > > extern pgd_t init_pg_dir[PTRS_PER_PGD]; > extern pgd_t init_pg_end[]; Another series (I guess not merged yet) is trying to add these wrappers on arm64 (https://patchwork.kernel.org/patch/10883887/).
