1/* $NetBSD: nouveau_nvkm_engine_disp_piocgf119.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $ */ 2 3/* 4 * Copyright 2012 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Ben Skeggs 25 */ 26#include <sys/cdefs.h> 27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_piocgf119.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $"); 28 29#include "channv50.h" 30#include "rootnv50.h" 31 32#include <subdev/timer.h> 33 34static void 35gf119_disp_pioc_fini(struct nv50_disp_chan *chan) 36{ 37 struct nv50_disp *disp = chan->disp; 38 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 39 struct nvkm_device *device = subdev->device; 40 int ctrl = chan->chid.ctrl; 41 int user = chan->chid.user; 42 43 nvkm_mask(device, 0x610490 + (ctrl * 0x10), 0x00000001, 0x00000000); 44 if (nvkm_msec(device, 2000, 45 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x00030000)) 46 break; 47 ) < 0) { 48 nvkm_error(subdev, "ch %d fini: %08x\n", user, 49 nvkm_rd32(device, 0x610490 + (ctrl * 0x10))); 50 } 51} 52 53static int 54gf119_disp_pioc_init(struct nv50_disp_chan *chan) 55{ 56 struct nv50_disp *disp = chan->disp; 57 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 58 struct nvkm_device *device = subdev->device; 59 int ctrl = chan->chid.ctrl; 60 int user = chan->chid.user; 61 62 /* activate channel */ 63 nvkm_wr32(device, 0x610490 + (ctrl * 0x10), 0x00000001); 64 if (nvkm_msec(device, 2000, 65 u32 tmp = nvkm_rd32(device, 0x610490 + (ctrl * 0x10)); 66 if ((tmp & 0x00030000) == 0x00010000) 67 break; 68 ) < 0) { 69 nvkm_error(subdev, "ch %d init: %08x\n", user, 70 nvkm_rd32(device, 0x610490 + (ctrl * 0x10))); 71 return -EBUSY; 72 } 73 74 return 0; 75} 76 77const struct nv50_disp_chan_func 78gf119_disp_pioc_func = { 79 .init = gf119_disp_pioc_init, 80 .fini = gf119_disp_pioc_fini, 81 .intr = gf119_disp_chan_intr, 82 .user = nv50_disp_chan_user, 83}; 84