diff options
Diffstat (limited to 'drivers/char/drm/drm_vm.c')
| -rw-r--r-- | drivers/char/drm/drm_vm.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c index 675d2397def..99b5c86f751 100644 --- a/drivers/char/drm/drm_vm.c +++ b/drivers/char/drm/drm_vm.c @@ -73,12 +73,13 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma, r_list = list_entry(list, drm_map_list_t, head); map = r_list->map; if (!map) continue; - if (map->offset == VM_OFFSET(vma)) break; + if (r_list->user_token == VM_OFFSET(vma)) + break; } if (map && map->type == _DRM_AGP) { unsigned long offset = address - vma->vm_start; - unsigned long baddr = VM_OFFSET(vma) + offset; + unsigned long baddr = map->offset + offset; struct drm_agp_mem *agpmem; struct page *page; @@ -304,7 +305,7 @@ static __inline__ struct page *drm_do_vm_sg_nopage(struct vm_area_struct *vma, offset = address - vma->vm_start; - map_offset = map->offset - dev->sg->handle; + map_offset = map->offset - (unsigned long)dev->sg->virtual; page_offset = (offset >> PAGE_SHIFT) + (map_offset >> PAGE_SHIFT); page = entry->pagelist[page_offset]; get_page(page); @@ -568,13 +569,12 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma) for performance, even if the list was a bit longer. */ list_for_each(list, &dev->maplist->head) { - unsigned long off; r_list = list_entry(list, drm_map_list_t, head); map = r_list->map; if (!map) continue; - off = dev->driver->get_map_ofs(map); - if (off == VM_OFFSET(vma)) break; + if (r_list->user_token == VM_OFFSET(vma)) + break; } if (!map || ((map->flags&_DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN))) @@ -613,7 +613,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma) /* fall through to _DRM_FRAME_BUFFER... */ case _DRM_FRAME_BUFFER: case _DRM_REGISTERS: - if (VM_OFFSET(vma) >= __pa(high_memory)) { + if (map->offset >= __pa(high_memory)) { #if defined(__i386__) || defined(__x86_64__) if (boot_cpu_data.x86 > 3 && map->type != _DRM_AGP) { pgprot_val(vma->vm_page_prot) |= _PAGE_PCD; @@ -636,12 +636,12 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma) offset = dev->driver->get_reg_ofs(dev); #ifdef __sparc__ if (io_remap_pfn_range(DRM_RPR_ARG(vma) vma->vm_start, - (VM_OFFSET(vma) + offset) >> PAGE_SHIFT, + (map->offset + offset) >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot)) #else if (io_remap_pfn_range(vma, vma->vm_start, - (VM_OFFSET(vma) + offset) >> PAGE_SHIFT, + (map->offset + offset) >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot)) #endif @@ -649,7 +649,7 @@ int drm_mmap(struct file *filp, struct vm_area_struct *vma) DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx," " offset = 0x%lx\n", map->type, - vma->vm_start, vma->vm_end, VM_OFFSET(vma) + offset); + vma->vm_start, vma->vm_end, map->offset + offset); vma->vm_ops = &drm_vm_ops; break; case _DRM_SHM: |