1/* $NetBSD: nouveau_nvkm_engine_disp_dmacgf119.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_dmacgf119.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $"); 28 29#include "channv50.h" 30 31#include <core/ramht.h> 32#include <subdev/timer.h> 33 34int 35gf119_disp_dmac_bind(struct nv50_disp_chan *chan, 36 struct nvkm_object *object, u32 handle) 37{ 38 return nvkm_ramht_insert(chan->disp->ramht, object, 39 chan->chid.user, -9, handle, 40 chan->chid.user << 27 | 0x00000001); 41} 42 43void 44gf119_disp_dmac_fini(struct nv50_disp_chan *chan) 45{ 46 struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev; 47 struct nvkm_device *device = subdev->device; 48 int ctrl = chan->chid.ctrl; 49 int user = chan->chid.user; 50 51 /* deactivate channel */ 52 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00001010, 0x00001000); 53 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000003, 0x00000000); 54 if (nvkm_msec(device, 2000, 55 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x001e0000)) 56 break; 57 ) < 0) { 58 nvkm_error(subdev, "ch %d fini: %08x\n", user, 59 nvkm_rd32(device, 0x610490 + (ctrl * 0x10))); 60 } 61} 62 63static int 64gf119_disp_dmac_init(struct nv50_disp_chan *chan) 65{ 66 struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev; 67 struct nvkm_device *device = subdev->device; 68 int ctrl = chan->chid.ctrl; 69 int user = chan->chid.user; 70 71 /* initialise channel for dma command submission */ 72 nvkm_wr32(device, 0x610494 + (ctrl * 0x0010), chan->push); 73 nvkm_wr32(device, 0x610498 + (ctrl * 0x0010), 0x00010000); 74 nvkm_wr32(device, 0x61049c + (ctrl * 0x0010), 0x00000001); 75 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000010, 0x00000010); 76 nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), 0x00000000); 77 nvkm_wr32(device, 0x610490 + (ctrl * 0x0010), 0x00000013); 78 79 /* wait for it to go inactive */ 80 if (nvkm_msec(device, 2000, 81 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x80000000)) 82 break; 83 ) < 0) { 84 nvkm_error(subdev, "ch %d init: %08x\n", user, 85 nvkm_rd32(device, 0x610490 + (ctrl * 0x10))); 86 return -EBUSY; 87 } 88 89 return 0; 90} 91 92const struct nv50_disp_chan_func 93gf119_disp_dmac_func = { 94 .init = gf119_disp_dmac_init, 95 .fini = gf119_disp_dmac_fini, 96 .intr = gf119_disp_chan_intr, 97 .user = nv50_disp_chan_user, 98 .bind = gf119_disp_dmac_bind, 99}; 100