1 /* 2 * Copyright 2013 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 "nv40.h" 25 26 static int 27 nv44_ram_create(struct nvkm_object *parent, struct nvkm_object *engine, 28 struct nvkm_oclass *oclass, void *data, u32 size, 29 struct nvkm_object **pobject) 30 { 31 struct nvkm_fb *fb = nvkm_fb(parent); 32 struct nv40_ram *ram; 33 struct nvkm_device *device = fb->subdev.device; 34 u32 fb474 = nvkm_rd32(device, 0x100474); 35 int ret; 36 37 ret = nvkm_ram_create(parent, engine, oclass, &ram); 38 *pobject = nv_object(ram); 39 if (ret) 40 return ret; 41 42 if (fb474 & 0x00000004) 43 ram->base.type = NV_MEM_TYPE_GDDR3; 44 if (fb474 & 0x00000002) 45 ram->base.type = NV_MEM_TYPE_DDR2; 46 if (fb474 & 0x00000001) 47 ram->base.type = NV_MEM_TYPE_DDR1; 48 49 ram->base.size = nvkm_rd32(device, 0x10020c) & 0xff000000; 50 ram->base.calc = nv40_ram_calc; 51 ram->base.prog = nv40_ram_prog; 52 ram->base.tidy = nv40_ram_tidy; 53 return 0; 54 } 55 56 struct nvkm_oclass 57 nv44_ram_oclass = { 58 .handle = 0, 59 .ofuncs = &(struct nvkm_ofuncs) { 60 .ctor = nv44_ram_create, 61 .dtor = _nvkm_ram_dtor, 62 .init = _nvkm_ram_init, 63 .fini = _nvkm_ram_fini, 64 } 65 }; 66