diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/drm_gem_shmem_helper.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index c989459eb215..00807039f8d7 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -597,9 +597,13 @@ static vm_fault_t try_insert_pfn(struct vm_fault *vmf, unsigned int order, #ifdef CONFIG_ARCH_SUPPORTS_PMD_PFNMAP } else if (order == PMD_ORDER) { unsigned long paddr = pfn << PAGE_SHIFT; + struct vm_area_struct *vma = vmf->vma; + unsigned long start = ALIGN_DOWN(vmf->address, PMD_SIZE); + unsigned long end = start + PMD_SIZE; + bool in_range = vma->vm_start <= start && end <= vma->vm_end; bool aligned = (vmf->address & ~PMD_MASK) == (paddr & ~PMD_MASK); - if (aligned && + if (aligned && in_range && folio_test_pmd_mappable(page_folio(pfn_to_page(pfn)))) { vm_fault_t ret; |