Lines Matching +full:page +full:- +full:offset
71 pgprot_t tmp = vm_get_page_prot(vma->vm_flags); in drm_io_prot()
78 if (map->type == _DRM_REGISTERS && !(map->flags & _DRM_WRITE_COMBINING)) in drm_io_prot()
83 if (efi_range_is_wc(vma->vm_start, vma->vm_end - in drm_io_prot()
84 vma->vm_start)) in drm_io_prot()
96 pgprot_t tmp = vm_get_page_prot(vma->vm_flags); in drm_dma_prot()
109 * \return pointer to the page structure.
111 * Find the right map and if it's AGP memory find the real physical page to
112 * map, get the page, increment the use count and return it.
117 struct vm_area_struct *vma = vmf->vma; in drm_vm_fault()
118 struct drm_file *priv = vma->vm_file->private_data; in drm_vm_fault()
119 struct drm_device *dev = priv->minor->dev; in drm_vm_fault()
127 if (!dev->agp) in drm_vm_fault()
130 if (!dev->agp || !dev->agp->cant_use_aperture) in drm_vm_fault()
133 if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) in drm_vm_fault()
137 map = r_list->map; in drm_vm_fault()
139 if (map && map->type == _DRM_AGP) { in drm_vm_fault()
144 resource_size_t offset = vmf->address - vma->vm_start; in drm_vm_fault() local
145 resource_size_t baddr = map->offset + offset; in drm_vm_fault()
147 struct page *page; in drm_vm_fault() local
151 * Adjust to a bus-relative address in drm_vm_fault()
153 baddr -= dev->hose->mem_space->start; in drm_vm_fault()
157 * It's AGP memory - find the real physical page to map in drm_vm_fault()
159 list_for_each_entry(agpmem, &dev->agp->memory, head) { in drm_vm_fault()
160 if (agpmem->bound <= baddr && in drm_vm_fault()
161 agpmem->bound + agpmem->pages * PAGE_SIZE > baddr) in drm_vm_fault()
165 if (&agpmem->head == &dev->agp->memory) in drm_vm_fault()
169 * Get the page, inc the use count, and return it in drm_vm_fault()
171 offset = (baddr - agpmem->bound) >> PAGE_SHIFT; in drm_vm_fault()
172 page = agpmem->memory->pages[offset]; in drm_vm_fault()
173 get_page(page); in drm_vm_fault()
174 vmf->page = page; in drm_vm_fault()
177 ("baddr = 0x%llx page = 0x%p, offset = 0x%llx, count=%d\n", in drm_vm_fault()
179 agpmem->memory->pages[offset], in drm_vm_fault()
180 (unsigned long long)offset, in drm_vm_fault()
181 page_count(page)); in drm_vm_fault()
199 * \return pointer to the page structure.
201 * Get the mapping, find the real physical page to map, get the page, and
206 struct vm_area_struct *vma = vmf->vma; in drm_vm_shm_fault()
207 struct drm_local_map *map = vma->vm_private_data; in drm_vm_shm_fault()
208 unsigned long offset; in drm_vm_shm_fault() local
210 struct page *page; in drm_vm_shm_fault() local
215 offset = vmf->address - vma->vm_start; in drm_vm_shm_fault()
216 i = (unsigned long)map->handle + offset; in drm_vm_shm_fault()
217 page = vmalloc_to_page((void *)i); in drm_vm_shm_fault()
218 if (!page) in drm_vm_shm_fault()
220 get_page(page); in drm_vm_shm_fault()
221 vmf->page = page; in drm_vm_shm_fault()
223 DRM_DEBUG("shm_fault 0x%lx\n", offset); in drm_vm_shm_fault()
237 struct drm_file *priv = vma->vm_file->private_data; in drm_vm_shm_close()
238 struct drm_device *dev = priv->minor->dev; in drm_vm_shm_close()
245 vma->vm_start, vma->vm_end - vma->vm_start); in drm_vm_shm_close()
247 map = vma->vm_private_data; in drm_vm_shm_close()
249 mutex_lock(&dev->struct_mutex); in drm_vm_shm_close()
250 list_for_each_entry_safe(pt, temp, &dev->vmalist, head) { in drm_vm_shm_close()
251 if (pt->vma->vm_private_data == map) in drm_vm_shm_close()
253 if (pt->vma == vma) { in drm_vm_shm_close()
254 list_del(&pt->head); in drm_vm_shm_close()
260 if (found_maps == 1 && map->flags & _DRM_REMOVABLE) { in drm_vm_shm_close()
265 list_for_each_entry(r_list, &dev->maplist, head) { in drm_vm_shm_close()
266 if (r_list->map == map) in drm_vm_shm_close()
271 switch (map->type) { in drm_vm_shm_close()
274 arch_phys_wc_del(map->mtrr); in drm_vm_shm_close()
275 iounmap(map->handle); in drm_vm_shm_close()
278 vfree(map->handle); in drm_vm_shm_close()
284 dma_free_coherent(&dev->pdev->dev, in drm_vm_shm_close()
285 map->size, in drm_vm_shm_close()
286 map->handle, in drm_vm_shm_close()
287 map->offset); in drm_vm_shm_close()
293 mutex_unlock(&dev->struct_mutex); in drm_vm_shm_close()
300 * \return pointer to the page structure.
302 * Determine the page number from the page offset and get it from drm_device_dma::pagelist.
306 struct vm_area_struct *vma = vmf->vma; in drm_vm_dma_fault()
307 struct drm_file *priv = vma->vm_file->private_data; in drm_vm_dma_fault()
308 struct drm_device *dev = priv->minor->dev; in drm_vm_dma_fault()
309 struct drm_device_dma *dma = dev->dma; in drm_vm_dma_fault()
310 unsigned long offset; in drm_vm_dma_fault() local
312 struct page *page; in drm_vm_dma_fault() local
316 if (!dma->pagelist) in drm_vm_dma_fault()
319 offset = vmf->address - vma->vm_start; in drm_vm_dma_fault()
321 page_nr = offset >> PAGE_SHIFT; /* page_nr could just be vmf->pgoff */ in drm_vm_dma_fault()
322 page = virt_to_page((void *)dma->pagelist[page_nr]); in drm_vm_dma_fault()
324 get_page(page); in drm_vm_dma_fault()
325 vmf->page = page; in drm_vm_dma_fault()
327 DRM_DEBUG("dma_fault 0x%lx (page %lu)\n", offset, page_nr); in drm_vm_dma_fault()
332 * \c fault method for scatter-gather virtual memory.
335 * \return pointer to the page structure.
337 * Determine the map offset from the page offset and get it from drm_sg_mem::pagelist.
341 struct vm_area_struct *vma = vmf->vma; in drm_vm_sg_fault()
342 struct drm_local_map *map = vma->vm_private_data; in drm_vm_sg_fault()
343 struct drm_file *priv = vma->vm_file->private_data; in drm_vm_sg_fault()
344 struct drm_device *dev = priv->minor->dev; in drm_vm_sg_fault()
345 struct drm_sg_mem *entry = dev->sg; in drm_vm_sg_fault()
346 unsigned long offset; in drm_vm_sg_fault() local
349 struct page *page; in drm_vm_sg_fault() local
353 if (!entry->pagelist) in drm_vm_sg_fault()
356 offset = vmf->address - vma->vm_start; in drm_vm_sg_fault()
357 map_offset = map->offset - (unsigned long)dev->sg->virtual; in drm_vm_sg_fault()
358 page_offset = (offset >> PAGE_SHIFT) + (map_offset >> PAGE_SHIFT); in drm_vm_sg_fault()
359 page = entry->pagelist[page_offset]; in drm_vm_sg_fault()
360 get_page(page); in drm_vm_sg_fault()
361 vmf->page = page; in drm_vm_sg_fault()
387 /** Scatter-gather virtual memory operations */
400 vma->vm_start, vma->vm_end - vma->vm_start); in drm_vm_open_locked()
404 vma_entry->vma = vma; in drm_vm_open_locked()
405 vma_entry->pid = current->pid; in drm_vm_open_locked()
406 list_add(&vma_entry->head, &dev->vmalist); in drm_vm_open_locked()
412 struct drm_file *priv = vma->vm_file->private_data; in drm_vm_open()
413 struct drm_device *dev = priv->minor->dev; in drm_vm_open()
415 mutex_lock(&dev->struct_mutex); in drm_vm_open()
417 mutex_unlock(&dev->struct_mutex); in drm_vm_open()
426 vma->vm_start, vma->vm_end - vma->vm_start); in drm_vm_close_locked()
428 list_for_each_entry_safe(pt, temp, &dev->vmalist, head) { in drm_vm_close_locked()
429 if (pt->vma == vma) { in drm_vm_close_locked()
430 list_del(&pt->head); in drm_vm_close_locked()
447 struct drm_file *priv = vma->vm_file->private_data; in drm_vm_close()
448 struct drm_device *dev = priv->minor->dev; in drm_vm_close()
450 mutex_lock(&dev->struct_mutex); in drm_vm_close()
452 mutex_unlock(&dev->struct_mutex); in drm_vm_close()
467 struct drm_file *priv = filp->private_data; in drm_mmap_dma()
470 unsigned long length = vma->vm_end - vma->vm_start; in drm_mmap_dma()
472 dev = priv->minor->dev; in drm_mmap_dma()
473 dma = dev->dma; in drm_mmap_dma()
474 DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n", in drm_mmap_dma()
475 vma->vm_start, vma->vm_end, vma->vm_pgoff); in drm_mmap_dma()
477 /* Length must match exact page count */ in drm_mmap_dma()
478 if (!dma || (length >> PAGE_SHIFT) != dma->page_count) { in drm_mmap_dma()
479 return -EINVAL; in drm_mmap_dma()
483 (dma->flags & _DRM_DMA_USE_PCI_RO)) { in drm_mmap_dma()
484 vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE); in drm_mmap_dma()
486 pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW; in drm_mmap_dma()
491 vma->vm_page_prot = in drm_mmap_dma()
494 (__pte(pgprot_val(vma->vm_page_prot))))); in drm_mmap_dma()
498 vma->vm_ops = &drm_vm_dma_ops; in drm_mmap_dma()
500 vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; in drm_mmap_dma()
509 return dev->hose->dense_mem_base; in drm_core_get_reg_ofs()
522 * If the virtual memory area has no offset associated with it then it's a DMA
530 struct drm_file *priv = filp->private_data; in drm_mmap_locked()
531 struct drm_device *dev = priv->minor->dev; in drm_mmap_locked()
533 resource_size_t offset = 0; in drm_mmap_locked() local
536 DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n", in drm_mmap_locked()
537 vma->vm_start, vma->vm_end, vma->vm_pgoff); in drm_mmap_locked()
539 if (!priv->authenticated) in drm_mmap_locked()
540 return -EACCES; in drm_mmap_locked()
544 * --BenH. in drm_mmap_locked()
546 if (!vma->vm_pgoff in drm_mmap_locked()
548 && (!dev->agp in drm_mmap_locked()
549 || dev->agp->agp_info.device->vendor != PCI_VENDOR_ID_APPLE) in drm_mmap_locked()
554 if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) { in drm_mmap_locked()
556 return -EINVAL; in drm_mmap_locked()
559 map = drm_hash_entry(hash, struct drm_map_list, hash)->map; in drm_mmap_locked()
560 if (!map || ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN))) in drm_mmap_locked()
561 return -EPERM; in drm_mmap_locked()
564 if (map->size < vma->vm_end - vma->vm_start) in drm_mmap_locked()
565 return -EINVAL; in drm_mmap_locked()
567 if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) { in drm_mmap_locked()
568 vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE); in drm_mmap_locked()
570 pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW; in drm_mmap_locked()
575 vma->vm_page_prot = in drm_mmap_locked()
578 (__pte(pgprot_val(vma->vm_page_prot))))); in drm_mmap_locked()
582 switch (map->type) { in drm_mmap_locked()
585 if (dev->agp && dev->agp->cant_use_aperture) { in drm_mmap_locked()
592 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); in drm_mmap_locked()
594 vma->vm_ops = &drm_vm_ops; in drm_mmap_locked()
601 offset = drm_core_get_reg_ofs(dev); in drm_mmap_locked()
602 vma->vm_page_prot = drm_io_prot(map, vma); in drm_mmap_locked()
603 if (io_remap_pfn_range(vma, vma->vm_start, in drm_mmap_locked()
604 (map->offset + offset) >> PAGE_SHIFT, in drm_mmap_locked()
605 vma->vm_end - vma->vm_start, in drm_mmap_locked()
606 vma->vm_page_prot)) in drm_mmap_locked()
607 return -EAGAIN; in drm_mmap_locked()
609 " offset = 0x%llx\n", in drm_mmap_locked()
610 map->type, in drm_mmap_locked()
611 vma->vm_start, vma->vm_end, (unsigned long long)(map->offset + offset)); in drm_mmap_locked()
613 vma->vm_ops = &drm_vm_ops; in drm_mmap_locked()
618 if (remap_pfn_range(vma, vma->vm_start, in drm_mmap_locked()
619 page_to_pfn(virt_to_page(map->handle)), in drm_mmap_locked()
620 vma->vm_end - vma->vm_start, vma->vm_page_prot)) in drm_mmap_locked()
621 return -EAGAIN; in drm_mmap_locked()
622 vma->vm_page_prot = drm_dma_prot(map->type, vma); in drm_mmap_locked()
625 vma->vm_ops = &drm_vm_shm_ops; in drm_mmap_locked()
626 vma->vm_private_data = (void *)map; in drm_mmap_locked()
629 vma->vm_ops = &drm_vm_sg_ops; in drm_mmap_locked()
630 vma->vm_private_data = (void *)map; in drm_mmap_locked()
631 vma->vm_page_prot = drm_dma_prot(map->type, vma); in drm_mmap_locked()
634 return -EINVAL; /* This should never happen. */ in drm_mmap_locked()
636 vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; in drm_mmap_locked()
644 struct drm_file *priv = filp->private_data; in drm_legacy_mmap()
645 struct drm_device *dev = priv->minor->dev; in drm_legacy_mmap()
649 return -ENODEV; in drm_legacy_mmap()
651 mutex_lock(&dev->struct_mutex); in drm_legacy_mmap()
653 mutex_unlock(&dev->struct_mutex); in drm_legacy_mmap()
665 list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { in drm_legacy_vma_flush()
666 list_del(&vma->head); in drm_legacy_vma_flush()