2 * Copyright 2012 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
24 #define nv04_disp_root(p) container_of((p), struct nv04_disp_root, object)
27 #include <core/client.h>
29 #include <nvif/class.h>
30 #include <nvif/cl0046.h>
31 #include <nvif/unpack.h>
33 struct nv04_disp_root {
34 struct nvkm_object object;
35 struct nvkm_disp *disp;
39 nv04_disp_scanoutpos(struct nv04_disp_root *root,
40 void *data, u32 size, int head)
42 struct nvkm_device *device = root->disp->engine.subdev.device;
43 struct nvkm_object *object = &root->object;
44 const u32 hoff = head * 0x2000;
46 struct nv04_disp_scanoutpos_v0 v0;
51 nvif_ioctl(object, "disp scanoutpos size %d\n", size);
52 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
53 nvif_ioctl(object, "disp scanoutpos vers %d\n",
55 args->v0.vblanks = nvkm_rd32(device, 0x680800 + hoff) & 0xffff;
56 args->v0.vtotal = nvkm_rd32(device, 0x680804 + hoff) & 0xffff;
57 args->v0.vblanke = args->v0.vtotal - 1;
59 args->v0.hblanks = nvkm_rd32(device, 0x680820 + hoff) & 0xffff;
60 args->v0.htotal = nvkm_rd32(device, 0x680824 + hoff) & 0xffff;
61 args->v0.hblanke = args->v0.htotal - 1;
64 * If output is vga instead of digital then vtotal/htotal is
65 * invalid so we have to give up and trigger the timestamping
66 * fallback in the drm core.
68 if (!args->v0.vtotal || !args->v0.htotal)
71 args->v0.time[0] = ktime_to_ns(ktime_get());
72 line = nvkm_rd32(device, 0x600868 + hoff);
73 args->v0.time[1] = ktime_to_ns(ktime_get());
74 args->v0.hline = (line & 0xffff0000) >> 16;
75 args->v0.vline = (line & 0x0000ffff);
83 nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
85 struct nv04_disp_root *root = nv04_disp_root(object);
87 struct nv04_disp_mthd_v0 v0;
89 int head, ret = -ENOSYS;
91 nvif_ioctl(object, "disp mthd size %d\n", size);
92 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
93 nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n",
94 args->v0.version, args->v0.method, args->v0.head);
95 mthd = args->v0.method;
100 if (head < 0 || head >= 2)
104 case NV04_DISP_SCANOUTPOS:
105 return nv04_disp_scanoutpos(root, data, size, head);
113 static const struct nvkm_object_func
115 .mthd = nv04_disp_mthd,
116 .ntfy = nvkm_disp_ntfy,
120 nv04_disp_root_new(struct nvkm_disp *disp, const struct nvkm_oclass *oclass,
121 void *data, u32 size, struct nvkm_object **pobject)
123 struct nv04_disp_root *root;
125 if (!(root = kzalloc(sizeof(*root), GFP_KERNEL)))
128 *pobject = &root->object;
130 nvkm_object_ctor(&nv04_disp_root, oclass, &root->object);
134 const struct nvkm_disp_oclass
135 nv04_disp_root_oclass = {
136 .base.oclass = NV04_DISP,
139 .ctor = nv04_disp_root_new,