| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Ben Skeggs |
| */ |
| #include "channv50.h" |
| #include "rootnv50.h" |
| |
| #include <subdev/timer.h> |
| |
| static void |
| gf119_disp_pioc_fini(struct nv50_disp_chan *chan) |
| { |
| struct nv50_disp *disp = chan->disp; |
| struct nvkm_subdev *subdev = &disp->base.engine.subdev; |
| struct nvkm_device *device = subdev->device; |
| int ctrl = chan->chid.ctrl; |
| int user = chan->chid.user; |
| |
| nvkm_mask(device, 0x610490 + (ctrl * 0x10), 0x00000001, 0x00000000); |
| if (nvkm_msec(device, 2000, |
| if (!(nvkm_rd32(device, 0x610490 + (ctrl * 0x10)) & 0x00030000)) |
| break; |
| ) < 0) { |
| nvkm_error(subdev, "ch %d fini: %08x\n", user, |
| nvkm_rd32(device, 0x610490 + (ctrl * 0x10))); |
| } |
| } |
| |
| static int |
| gf119_disp_pioc_init(struct nv50_disp_chan *chan) |
| { |
| struct nv50_disp *disp = chan->disp; |
| struct nvkm_subdev *subdev = &disp->base.engine.subdev; |
| struct nvkm_device *device = subdev->device; |
| int ctrl = chan->chid.ctrl; |
| int user = chan->chid.user; |
| |
| /* activate channel */ |
| nvkm_wr32(device, 0x610490 + (ctrl * 0x10), 0x00000001); |
| if (nvkm_msec(device, 2000, |
| u32 tmp = nvkm_rd32(device, 0x610490 + (ctrl * 0x10)); |
| if ((tmp & 0x00030000) == 0x00010000) |
| break; |
| ) < 0) { |
| nvkm_error(subdev, "ch %d init: %08x\n", user, |
| nvkm_rd32(device, 0x610490 + (ctrl * 0x10))); |
| return -EBUSY; |
| } |
| |
| return 0; |
| } |
| |
| const struct nv50_disp_chan_func |
| gf119_disp_pioc_func = { |
| .init = gf119_disp_pioc_init, |
| .fini = gf119_disp_pioc_fini, |
| .intr = gf119_disp_chan_intr, |
| .user = nv50_disp_chan_user, |
| }; |