1c39f472eSBen Skeggs /* 2c39f472eSBen Skeggs * Copyright 2013 Red Hat Inc. 3c39f472eSBen Skeggs * 4c39f472eSBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a 5c39f472eSBen Skeggs * copy of this software and associated documentation files (the "Software"), 6c39f472eSBen Skeggs * to deal in the Software without restriction, including without limitation 7c39f472eSBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8c39f472eSBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the 9c39f472eSBen Skeggs * Software is furnished to do so, subject to the following conditions: 10c39f472eSBen Skeggs * 11c39f472eSBen Skeggs * The above copyright notice and this permission notice shall be included in 12c39f472eSBen Skeggs * all copies or substantial portions of the Software. 13c39f472eSBen Skeggs * 14c39f472eSBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15c39f472eSBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16c39f472eSBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17c39f472eSBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18c39f472eSBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19c39f472eSBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20c39f472eSBen Skeggs * OTHER DEALINGS IN THE SOFTWARE. 21c39f472eSBen Skeggs * 22c39f472eSBen Skeggs * Authors: Ben Skeggs 23c39f472eSBen Skeggs */ 24d36a99d2SBen Skeggs #include "ramnv40.h" 25c39f472eSBen Skeggs 26d36a99d2SBen Skeggs int 27d36a99d2SBen Skeggs nv41_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) 28c39f472eSBen Skeggs { 296758745bSBen Skeggs struct nvkm_device *device = fb->subdev.device; 30d36a99d2SBen Skeggs u32 size = nvkm_rd32(device, 0x10020c) & 0xff000000; 31d36a99d2SBen Skeggs u32 tags = nvkm_rd32(device, 0x100320); 326758745bSBen Skeggs u32 fb474 = nvkm_rd32(device, 0x100474); 33d36a99d2SBen Skeggs enum nvkm_ram_type type = NVKM_RAM_TYPE_UNKNOWN; 34c39f472eSBen Skeggs int ret; 35c39f472eSBen Skeggs 36d36a99d2SBen Skeggs if (fb474 & 0x00000004) 37d36a99d2SBen Skeggs type = NVKM_RAM_TYPE_GDDR3; 38d36a99d2SBen Skeggs if (fb474 & 0x00000002) 39d36a99d2SBen Skeggs type = NVKM_RAM_TYPE_DDR2; 40d36a99d2SBen Skeggs if (fb474 & 0x00000001) 41d36a99d2SBen Skeggs type = NVKM_RAM_TYPE_DDR1; 42d36a99d2SBen Skeggs 43d36a99d2SBen Skeggs ret = nv40_ram_new_(fb, type, size, tags, pram); 44c39f472eSBen Skeggs if (ret) 45c39f472eSBen Skeggs return ret; 46c39f472eSBen Skeggs 47d36a99d2SBen Skeggs (*pram)->parts = (nvkm_rd32(device, 0x100200) & 0x00000003) + 1; 48c39f472eSBen Skeggs return 0; 49c39f472eSBen Skeggs } 50