| /* |
| * 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 |
| */ |
| #define nv04_disp_root(p) container_of((p), struct nv04_disp_root, object) |
| #include "priv.h" |
| |
| #include <core/client.h> |
| |
| #include <nvif/class.h> |
| #include <nvif/unpack.h> |
| |
| struct nv04_disp_root { |
| struct nvkm_object object; |
| struct nvkm_disp *disp; |
| }; |
| |
| static int |
| nv04_disp_scanoutpos(struct nv04_disp_root *root, |
| void *data, u32 size, int head) |
| { |
| struct nvkm_device *device = root->disp->engine.subdev.device; |
| struct nvkm_object *object = &root->object; |
| const u32 hoff = head * 0x2000; |
| union { |
| struct nv04_disp_scanoutpos_v0 v0; |
| } *args = data; |
| u32 line; |
| int ret; |
| |
| nvif_ioctl(object, "disp scanoutpos size %d\n", size); |
| if (nvif_unpack(args->v0, 0, 0, false)) { |
| nvif_ioctl(object, "disp scanoutpos vers %d\n", |
| args->v0.version); |
| args->v0.vblanks = nvkm_rd32(device, 0x680800 + hoff) & 0xffff; |
| args->v0.vtotal = nvkm_rd32(device, 0x680804 + hoff) & 0xffff; |
| args->v0.vblanke = args->v0.vtotal - 1; |
| |
| args->v0.hblanks = nvkm_rd32(device, 0x680820 + hoff) & 0xffff; |
| args->v0.htotal = nvkm_rd32(device, 0x680824 + hoff) & 0xffff; |
| args->v0.hblanke = args->v0.htotal - 1; |
| |
| /* |
| * If output is vga instead of digital then vtotal/htotal is |
| * invalid so we have to give up and trigger the timestamping |
| * fallback in the drm core. |
| */ |
| if (!args->v0.vtotal || !args->v0.htotal) |
| return -ENOTSUPP; |
| |
| args->v0.time[0] = ktime_to_ns(ktime_get()); |
| line = nvkm_rd32(device, 0x600868 + hoff); |
| args->v0.time[1] = ktime_to_ns(ktime_get()); |
| args->v0.hline = (line & 0xffff0000) >> 16; |
| args->v0.vline = (line & 0x0000ffff); |
| } else |
| return ret; |
| |
| return 0; |
| } |
| |
| static int |
| nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) |
| { |
| struct nv04_disp_root *root = nv04_disp_root(object); |
| union { |
| struct nv04_disp_mthd_v0 v0; |
| } *args = data; |
| int head, ret; |
| |
| nvif_ioctl(object, "disp mthd size %d\n", size); |
| if (nvif_unpack(args->v0, 0, 0, true)) { |
| nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n", |
| args->v0.version, args->v0.method, args->v0.head); |
| mthd = args->v0.method; |
| head = args->v0.head; |
| } else |
| return ret; |
| |
| if (head < 0 || head >= 2) |
| return -ENXIO; |
| |
| switch (mthd) { |
| case NV04_DISP_SCANOUTPOS: |
| return nv04_disp_scanoutpos(root, data, size, head); |
| default: |
| break; |
| } |
| |
| return -EINVAL; |
| } |
| |
| static struct nvkm_object_func |
| nv04_disp_root = { |
| .mthd = nv04_disp_mthd, |
| .ntfy = nvkm_disp_ntfy, |
| }; |
| |
| static int |
| nv04_disp_root_new(struct nvkm_disp *disp, const struct nvkm_oclass *oclass, |
| void *data, u32 size, struct nvkm_object **pobject) |
| { |
| struct nv04_disp_root *root; |
| |
| if (!(root = kzalloc(sizeof(*root), GFP_KERNEL))) |
| return -ENOMEM; |
| root->disp = disp; |
| *pobject = &root->object; |
| |
| nvkm_object_ctor(&nv04_disp_root, oclass, &root->object); |
| return 0; |
| } |
| |
| const struct nvkm_disp_oclass |
| nv04_disp_root_oclass = { |
| .base.oclass = NV04_DISP, |
| .base.minver = -1, |
| .base.maxver = -1, |
| .ctor = nv04_disp_root_new, |
| }; |