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1/*2 * Copyright 2013 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */24#include "ramnv40.h"25 26int27nv41_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)28{29 struct nvkm_device *device = fb->subdev.device;30 u32 size = nvkm_rd32(device, 0x10020c) & 0xff000000;31 u32 fb474 = nvkm_rd32(device, 0x100474);32 enum nvkm_ram_type type = NVKM_RAM_TYPE_UNKNOWN;33 int ret;34 35 if (fb474 & 0x00000004)36 type = NVKM_RAM_TYPE_GDDR3;37 if (fb474 & 0x00000002)38 type = NVKM_RAM_TYPE_DDR2;39 if (fb474 & 0x00000001)40 type = NVKM_RAM_TYPE_DDR1;41 42 ret = nv40_ram_new_(fb, type, size, pram);43 if (ret)44 return ret;45 46 (*pram)->parts = (nvkm_rd32(device, 0x100200) & 0x00000003) + 1;47 return 0;48}49