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 "priv.h" 25 26 static int 27 gk104_ltc_init(struct nvkm_object *object) 28 { 29 struct nvkm_ltc_priv *ltc = (void *)object; 30 struct nvkm_device *device = ltc->base.subdev.device; 31 u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001); 32 int ret; 33 34 ret = nvkm_ltc_init(ltc); 35 if (ret) 36 return ret; 37 38 nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr); 39 nvkm_wr32(device, 0x17e000, ltc->ltc_nr); 40 nvkm_wr32(device, 0x17e8d4, ltc->tag_base); 41 nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000); 42 return 0; 43 } 44 45 struct nvkm_oclass * 46 gk104_ltc_oclass = &(struct nvkm_ltc_impl) { 47 .base.handle = NV_SUBDEV(LTC, 0xe4), 48 .base.ofuncs = &(struct nvkm_ofuncs) { 49 .ctor = gf100_ltc_ctor, 50 .dtor = gf100_ltc_dtor, 51 .init = gk104_ltc_init, 52 .fini = _nvkm_ltc_fini, 53 }, 54 .intr = gf100_ltc_intr, 55 .cbc_clear = gf100_ltc_cbc_clear, 56 .cbc_wait = gf100_ltc_cbc_wait, 57 .zbc = 16, 58 .zbc_clear_color = gf100_ltc_zbc_clear_color, 59 .zbc_clear_depth = gf100_ltc_zbc_clear_depth, 60 }.base; 61