1 /* 2 * Copyright (c) 2019 NVIDIA Corporation. 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: Thierry Reding 23 */ 24 25 #include "priv.h" 26 27 static void 28 gp10b_ltc_init(struct nvkm_ltc *ltc) 29 { 30 struct nvkm_device *device = ltc->subdev.device; 31 struct iommu_fwspec *spec; 32 33 nvkm_wr32(device, 0x17e27c, ltc->ltc_nr); 34 nvkm_wr32(device, 0x17e000, ltc->ltc_nr); 35 nvkm_wr32(device, 0x100800, ltc->ltc_nr); 36 37 spec = dev_iommu_fwspec_get(device->dev); 38 if (spec) { 39 u32 sid = spec->ids[0] & 0xffff; 40 41 /* stream ID */ 42 nvkm_wr32(device, 0x160000, sid << 2); 43 } 44 } 45 46 static const struct nvkm_ltc_func 47 gp10b_ltc = { 48 .oneinit = gp100_ltc_oneinit, 49 .init = gp10b_ltc_init, 50 .intr = gp100_ltc_intr, 51 .cbc_clear = gm107_ltc_cbc_clear, 52 .cbc_wait = gm107_ltc_cbc_wait, 53 .zbc_color = 16, 54 .zbc_depth = 16, 55 .zbc_clear_color = gm107_ltc_zbc_clear_color, 56 .zbc_clear_depth = gm107_ltc_zbc_clear_depth, 57 .zbc_clear_stencil = gp102_ltc_zbc_clear_stencil, 58 .invalidate = gf100_ltc_invalidate, 59 .flush = gf100_ltc_flush, 60 }; 61 62 int 63 gp10b_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 64 struct nvkm_ltc **pltc) 65 { 66 return nvkm_ltc_new_(&gp10b_ltc, device, type, inst, pltc); 67 } 68