1 /* 2 * Copyright 2012 Red Hat Inc. 3 * 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: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 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. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include "nv04.h" 25 #include "regsnv04.h" 26 27 bool 28 nv04_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags) 29 { 30 if (!(tile_flags & 0xff00)) 31 return true; 32 33 return false; 34 } 35 36 static int 37 nv04_fb_init(struct nvkm_object *object) 38 { 39 struct nvkm_fb *fb = (void *)object; 40 struct nvkm_device *device = fb->subdev.device; 41 int ret; 42 43 ret = nvkm_fb_init(fb); 44 if (ret) 45 return ret; 46 47 /* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows 48 * nvidia reading PFB_CFG_0, then writing back its original value. 49 * (which was 0x701114 in this case) 50 */ 51 nvkm_wr32(device, NV04_PFB_CFG0, 0x1114); 52 return 0; 53 } 54 55 int 56 nv04_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 57 struct nvkm_oclass *oclass, void *data, u32 size, 58 struct nvkm_object **pobject) 59 { 60 struct nv04_fb_impl *impl = (void *)oclass; 61 struct nvkm_fb *fb; 62 int ret; 63 64 ret = nvkm_fb_create(parent, engine, oclass, &fb); 65 *pobject = nv_object(fb); 66 if (ret) 67 return ret; 68 69 fb->tile.regions = impl->tile.regions; 70 fb->tile.init = impl->tile.init; 71 fb->tile.comp = impl->tile.comp; 72 fb->tile.fini = impl->tile.fini; 73 fb->tile.prog = impl->tile.prog; 74 return 0; 75 } 76 77 struct nvkm_oclass * 78 nv04_fb_oclass = &(struct nv04_fb_impl) { 79 .base.base.handle = NV_SUBDEV(FB, 0x04), 80 .base.base.ofuncs = &(struct nvkm_ofuncs) { 81 .ctor = nv04_fb_ctor, 82 .dtor = _nvkm_fb_dtor, 83 .init = nv04_fb_init, 84 .fini = _nvkm_fb_fini, 85 }, 86 .base.memtype = nv04_fb_memtype_valid, 87 .base.ram = &nv04_ram_oclass, 88 }.base.base; 89