2 * Copyright 2012 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
28 struct nouveau_fb base;
29 struct page *r100c10_page;
33 extern const u8 nvc0_pte_storage_type_map[256];
36 nvc0_fb_memtype_valid(struct nouveau_fb *pfb, u32 tile_flags)
38 u8 memtype = (tile_flags & 0x0000ff00) >> 8;
39 return likely((nvc0_pte_storage_type_map[memtype] != 0xff));
43 nvc0_fb_init(struct nouveau_object *object)
45 struct nvc0_fb_priv *priv = (void *)object;
48 ret = nouveau_fb_init(&priv->base);
52 if (priv->r100c10_page)
53 nv_wr32(priv, 0x100c10, priv->r100c10 >> 8);
58 nvc0_fb_dtor(struct nouveau_object *object)
60 struct nouveau_device *device = nv_device(object);
61 struct nvc0_fb_priv *priv = (void *)object;
63 if (priv->r100c10_page) {
64 pci_unmap_page(device->pdev, priv->r100c10, PAGE_SIZE,
65 PCI_DMA_BIDIRECTIONAL);
66 __free_page(priv->r100c10_page);
69 nouveau_fb_destroy(&priv->base);
73 nvc0_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
74 struct nouveau_oclass *oclass, void *data, u32 size,
75 struct nouveau_object **pobject)
77 struct nouveau_device *device = nv_device(parent);
78 struct nvc0_fb_priv *priv;
81 ret = nouveau_fb_create(parent, engine, oclass, &nvc0_ram_oclass, &priv);
82 *pobject = nv_object(priv);
86 priv->base.memtype_valid = nvc0_fb_memtype_valid;
88 priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
89 if (priv->r100c10_page) {
90 priv->r100c10 = pci_map_page(device->pdev, priv->r100c10_page,
92 PCI_DMA_BIDIRECTIONAL);
93 if (pci_dma_mapping_error(device->pdev, priv->r100c10))
101 struct nouveau_oclass *
102 nvc0_fb_oclass = &(struct nouveau_oclass) {
103 .handle = NV_SUBDEV(FB, 0xc0),
104 .ofuncs = &(struct nouveau_ofuncs) {
105 .ctor = nvc0_fb_ctor,
106 .dtor = nvc0_fb_dtor,
107 .init = nvc0_fb_init,
108 .fini = _nouveau_fb_fini,