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 25 #include "priv.h" 26 27 static int 28 nv20_ram_create(struct nouveau_object *parent, struct nouveau_object *engine, 29 struct nouveau_oclass *oclass, void *data, u32 size, 30 struct nouveau_object **pobject) 31 { 32 struct nouveau_fb *pfb = nouveau_fb(parent); 33 struct nouveau_ram *ram; 34 u32 pbus1218 = nv_rd32(pfb, 0x001218); 35 int ret; 36 37 ret = nouveau_ram_create(parent, engine, oclass, &ram); 38 *pobject = nv_object(ram); 39 if (ret) 40 return ret; 41 42 switch (pbus1218 & 0x00000300) { 43 case 0x00000000: ram->type = NV_MEM_TYPE_SDRAM; break; 44 case 0x00000100: ram->type = NV_MEM_TYPE_DDR1; break; 45 case 0x00000200: ram->type = NV_MEM_TYPE_GDDR3; break; 46 case 0x00000300: ram->type = NV_MEM_TYPE_GDDR2; break; 47 } 48 ram->size = (nv_rd32(pfb, 0x10020c) & 0xff000000); 49 ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1; 50 ram->tags = nv_rd32(pfb, 0x100320); 51 return 0; 52 } 53 54 struct nouveau_oclass 55 nv20_ram_oclass = { 56 .handle = 0, 57 .ofuncs = &(struct nouveau_ofuncs) { 58 .ctor = nv20_ram_create, 59 .dtor = _nouveau_ram_dtor, 60 .init = _nouveau_ram_init, 61 .fini = _nouveau_ram_fini, 62 } 63 }; 64