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 "priv.h" 25 26 #include <core/client.h> 27 28 #include <nvif/class.h> 29 #include <nvif/unpack.h> 30 31 static int 32 nv04_disp_scanoutpos(struct nvkm_object *object, struct nvkm_disp *disp, 33 void *data, u32 size, int head) 34 { 35 struct nvkm_device *device = disp->engine.subdev.device; 36 const u32 hoff = head * 0x2000; 37 union { 38 struct nv04_disp_scanoutpos_v0 v0; 39 } *args = data; 40 u32 line; 41 int ret; 42 43 nvif_ioctl(object, "disp scanoutpos size %d\n", size); 44 if (nvif_unpack(args->v0, 0, 0, false)) { 45 nvif_ioctl(object, "disp scanoutpos vers %d\n", 46 args->v0.version); 47 args->v0.vblanks = nvkm_rd32(device, 0x680800 + hoff) & 0xffff; 48 args->v0.vtotal = nvkm_rd32(device, 0x680804 + hoff) & 0xffff; 49 args->v0.vblanke = args->v0.vtotal - 1; 50 51 args->v0.hblanks = nvkm_rd32(device, 0x680820 + hoff) & 0xffff; 52 args->v0.htotal = nvkm_rd32(device, 0x680824 + hoff) & 0xffff; 53 args->v0.hblanke = args->v0.htotal - 1; 54 55 /* 56 * If output is vga instead of digital then vtotal/htotal is 57 * invalid so we have to give up and trigger the timestamping 58 * fallback in the drm core. 59 */ 60 if (!args->v0.vtotal || !args->v0.htotal) 61 return -ENOTSUPP; 62 63 args->v0.time[0] = ktime_to_ns(ktime_get()); 64 line = nvkm_rd32(device, 0x600868 + hoff); 65 args->v0.time[1] = ktime_to_ns(ktime_get()); 66 args->v0.hline = (line & 0xffff0000) >> 16; 67 args->v0.vline = (line & 0x0000ffff); 68 } else 69 return ret; 70 71 return 0; 72 } 73 74 static int 75 nv04_disp_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) 76 { 77 union { 78 struct nv04_disp_mthd_v0 v0; 79 } *args = data; 80 struct nvkm_disp *disp = (void *)object->engine; 81 int head, ret; 82 83 nvif_ioctl(object, "disp mthd size %d\n", size); 84 if (nvif_unpack(args->v0, 0, 0, true)) { 85 nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n", 86 args->v0.version, args->v0.method, args->v0.head); 87 mthd = args->v0.method; 88 head = args->v0.head; 89 } else 90 return ret; 91 92 if (head < 0 || head >= 2) 93 return -ENXIO; 94 95 switch (mthd) { 96 case NV04_DISP_SCANOUTPOS: 97 return nv04_disp_scanoutpos(object, disp, data, size, head); 98 default: 99 break; 100 } 101 102 return -EINVAL; 103 } 104 105 static struct nvkm_ofuncs 106 nv04_disp_ofuncs = { 107 .ctor = _nvkm_object_ctor, 108 .dtor = nvkm_object_destroy, 109 .init = _nvkm_object_init, 110 .fini = _nvkm_object_fini, 111 .mthd = nv04_disp_mthd, 112 .ntfy = nvkm_disp_ntfy, 113 }; 114 115 static struct nvkm_oclass 116 nv04_disp_sclass[] = { 117 { NV04_DISP, &nv04_disp_ofuncs }, 118 {}, 119 }; 120 121 /******************************************************************************* 122 * Display engine implementation 123 ******************************************************************************/ 124 125 static void 126 nv04_disp_vblank_init(struct nvkm_event *event, int type, int head) 127 { 128 struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); 129 struct nvkm_device *device = disp->engine.subdev.device; 130 nvkm_wr32(device, 0x600140 + (head * 0x2000) , 0x00000001); 131 } 132 133 static void 134 nv04_disp_vblank_fini(struct nvkm_event *event, int type, int head) 135 { 136 struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); 137 struct nvkm_device *device = disp->engine.subdev.device; 138 nvkm_wr32(device, 0x600140 + (head * 0x2000) , 0x00000000); 139 } 140 141 static const struct nvkm_event_func 142 nv04_disp_vblank_func = { 143 .ctor = nvkm_disp_vblank_ctor, 144 .init = nv04_disp_vblank_init, 145 .fini = nv04_disp_vblank_fini, 146 }; 147 148 static void 149 nv04_disp_intr(struct nvkm_subdev *subdev) 150 { 151 struct nvkm_disp *disp = (void *)subdev; 152 struct nvkm_device *device = disp->engine.subdev.device; 153 u32 crtc0 = nvkm_rd32(device, 0x600100); 154 u32 crtc1 = nvkm_rd32(device, 0x602100); 155 u32 pvideo; 156 157 if (crtc0 & 0x00000001) { 158 nvkm_disp_vblank(disp, 0); 159 nvkm_wr32(device, 0x600100, 0x00000001); 160 } 161 162 if (crtc1 & 0x00000001) { 163 nvkm_disp_vblank(disp, 1); 164 nvkm_wr32(device, 0x602100, 0x00000001); 165 } 166 167 if (nv_device(disp)->chipset >= 0x10 && 168 nv_device(disp)->chipset <= 0x40) { 169 pvideo = nvkm_rd32(device, 0x8100); 170 if (pvideo & ~0x11) 171 nvkm_info(subdev, "PVIDEO intr: %08x\n", pvideo); 172 nvkm_wr32(device, 0x8100, pvideo); 173 } 174 } 175 176 static int 177 nv04_disp_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 178 struct nvkm_oclass *oclass, void *data, u32 size, 179 struct nvkm_object **pobject) 180 { 181 struct nvkm_disp *disp; 182 int ret; 183 184 ret = nvkm_disp_create(parent, engine, oclass, 2, "DISPLAY", 185 "display", &disp); 186 *pobject = nv_object(disp); 187 if (ret) 188 return ret; 189 190 nv_engine(disp)->sclass = nv04_disp_sclass; 191 nv_subdev(disp)->intr = nv04_disp_intr; 192 return 0; 193 } 194 195 struct nvkm_oclass * 196 nv04_disp_oclass = &(struct nvkm_disp_impl) { 197 .base.handle = NV_ENGINE(DISP, 0x04), 198 .base.ofuncs = &(struct nvkm_ofuncs) { 199 .ctor = nv04_disp_ctor, 200 .dtor = _nvkm_disp_dtor, 201 .init = _nvkm_disp_init, 202 .fini = _nvkm_disp_fini, 203 }, 204 .vblank = &nv04_disp_vblank_func, 205 }.base; 206