dmacgf119.c (3305B)
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 "channv50.h" 25 26#include <core/ramht.h> 27#include <subdev/timer.h> 28 29int 30gf119_disp_dmac_bind(struct nv50_disp_chan *chan, 31 struct nvkm_object *object, u32 handle) 32{ 33 return nvkm_ramht_insert(chan->disp->ramht, object, 34 chan->chid.user, -9, handle, 35 chan->chid.user << 27 | 0x00000001); 36} 37 38void 39gf119_disp_dmac_fini(struct nv50_disp_chan *chan) 40{ 41 struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev; 42 struct nvkm_device *device = subdev->device; 43 int ctrl = chan->chid.ctrl; 44 int user = chan->chid.user; 45 46 /* deactivate channel */ 47 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00001010, 0x00001000); 48 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000003, 0x00000000); 49 if (nvkm_msec(device, 2000, 50 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x001e0000)) 51 break; 52 ) < 0) { 53 nvkm_error(subdev, "ch %d fini: %08x\n", user, 54 nvkm_rd32(device, 0x610490 + (ctrl * 0x10))); 55 } 56 57 chan->suspend_put = nvkm_rd32(device, 0x640000 + (ctrl * 0x1000)); 58} 59 60static int 61gf119_disp_dmac_init(struct nv50_disp_chan *chan) 62{ 63 struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev; 64 struct nvkm_device *device = subdev->device; 65 int ctrl = chan->chid.ctrl; 66 int user = chan->chid.user; 67 68 /* initialise channel for dma command submission */ 69 nvkm_wr32(device, 0x610494 + (ctrl * 0x0010), chan->push); 70 nvkm_wr32(device, 0x610498 + (ctrl * 0x0010), 0x00010000); 71 nvkm_wr32(device, 0x61049c + (ctrl * 0x0010), 0x00000001); 72 nvkm_mask(device, 0x610490 + (ctrl * 0x0010), 0x00000010, 0x00000010); 73 nvkm_wr32(device, 0x640000 + (ctrl * 0x1000), chan->suspend_put); 74 nvkm_wr32(device, 0x610490 + (ctrl * 0x0010), 0x00000013); 75 76 /* wait for it to go inactive */ 77 if (nvkm_msec(device, 2000, 78 if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x80000000)) 79 break; 80 ) < 0) { 81 nvkm_error(subdev, "ch %d init: %08x\n", user, 82 nvkm_rd32(device, 0x610490 + (ctrl * 0x10))); 83 return -EBUSY; 84 } 85 86 return 0; 87} 88 89const struct nv50_disp_chan_func 90gf119_disp_dmac_func = { 91 .init = gf119_disp_dmac_init, 92 .fini = gf119_disp_dmac_fini, 93 .intr = gf119_disp_chan_intr, 94 .user = nv50_disp_chan_user, 95 .bind = gf119_disp_dmac_bind, 96};