diff options
Diffstat (limited to 'drivers/char/drm/drm_vm.c')
-rw-r--r-- | drivers/char/drm/drm_vm.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c index f7d4e29d5073..2d83b0b3a514 100644 --- a/drivers/char/drm/drm_vm.c +++ b/drivers/char/drm/drm_vm.c | |||
@@ -175,8 +175,7 @@ static __inline__ struct page *drm_do_vm_shm_nopage(struct vm_area_struct *vma, | |||
175 | 175 | ||
176 | offset = address - vma->vm_start; | 176 | offset = address - vma->vm_start; |
177 | i = (unsigned long)map->handle + offset; | 177 | i = (unsigned long)map->handle + offset; |
178 | page = (map->type == _DRM_CONSISTENT) ? | 178 | page = vmalloc_to_page((void *)i); |
179 | virt_to_page((void *)i) : vmalloc_to_page((void *)i); | ||
180 | if (!page) | 179 | if (!page) |
181 | return NOPAGE_SIGBUS; | 180 | return NOPAGE_SIGBUS; |
182 | get_page(page); | 181 | get_page(page); |
@@ -651,10 +650,15 @@ static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) | |||
651 | vma->vm_start, vma->vm_end, map->offset + offset); | 650 | vma->vm_start, vma->vm_end, map->offset + offset); |
652 | vma->vm_ops = &drm_vm_ops; | 651 | vma->vm_ops = &drm_vm_ops; |
653 | break; | 652 | break; |
654 | case _DRM_SHM: | ||
655 | case _DRM_CONSISTENT: | 653 | case _DRM_CONSISTENT: |
656 | /* Consistent memory is really like shared memory. It's only | 654 | /* Consistent memory is really like shared memory. But |
657 | * allocate in a different way */ | 655 | * it's allocated in a different way, so avoid nopage */ |
656 | if (remap_pfn_range(vma, vma->vm_start, | ||
657 | page_to_pfn(virt_to_page(map->handle)), | ||
658 | vma->vm_end - vma->vm_start, vma->vm_page_prot)) | ||
659 | return -EAGAIN; | ||
660 | /* fall through to _DRM_SHM */ | ||
661 | case _DRM_SHM: | ||
658 | vma->vm_ops = &drm_vm_shm_ops; | 662 | vma->vm_ops = &drm_vm_shm_ops; |
659 | vma->vm_private_data = (void *)map; | 663 | vma->vm_private_data = (void *)map; |
660 | /* Don't let this area swap. Change when | 664 | /* Don't let this area swap. Change when |