diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/nv04.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/disp/nv04.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv04.c new file mode 100644 index 000000000000..ff09b2659c17 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv04.c @@ -0,0 +1,205 @@ +/* + * 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 "priv.h" + +#include <core/client.h> +#include <core/device.h> + +#include <nvif/class.h> +#include <nvif/unpack.h> + +struct nv04_disp_priv { + struct nvkm_disp base; +}; + +static int +nv04_disp_scanoutpos(struct nvkm_object *object, struct nv04_disp_priv *priv, + void *data, u32 size, int head) +{ + const u32 hoff = head * 0x2000; + union { + struct nv04_disp_scanoutpos_v0 v0; + } *args = data; + u32 line; + int ret; + + nv_ioctl(object, "disp scanoutpos size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "disp scanoutpos vers %d\n", args->v0.version); + args->v0.vblanks = nv_rd32(priv, 0x680800 + hoff) & 0xffff; + args->v0.vtotal = nv_rd32(priv, 0x680804 + hoff) & 0xffff; + args->v0.vblanke = args->v0.vtotal - 1; + + args->v0.hblanks = nv_rd32(priv, 0x680820 + hoff) & 0xffff; + args->v0.htotal = nv_rd32(priv, 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 = nv_rd32(priv, 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) +{ + union { + struct nv04_disp_mthd_v0 v0; + } *args = data; + struct nv04_disp_priv *priv = (void *)object->engine; + int head, ret; + + nv_ioctl(object, "disp mthd size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, true)) { + nv_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(object, priv, data, size, head); + default: + break; + } + + return -EINVAL; +} + +static struct nvkm_ofuncs +nv04_disp_ofuncs = { + .ctor = _nvkm_object_ctor, + .dtor = nvkm_object_destroy, + .init = nvkm_object_init, + .fini = nvkm_object_fini, + .mthd = nv04_disp_mthd, + .ntfy = nvkm_disp_ntfy, +}; + +static struct nvkm_oclass +nv04_disp_sclass[] = { + { NV04_DISP, &nv04_disp_ofuncs }, + {}, +}; + +/******************************************************************************* + * Display engine implementation + ******************************************************************************/ + +static void +nv04_disp_vblank_init(struct nvkm_event *event, int type, int head) +{ + struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); + nv_wr32(disp, 0x600140 + (head * 0x2000) , 0x00000001); +} + +static void +nv04_disp_vblank_fini(struct nvkm_event *event, int type, int head) +{ + struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); + nv_wr32(disp, 0x600140 + (head * 0x2000) , 0x00000000); +} + +static const struct nvkm_event_func +nv04_disp_vblank_func = { + .ctor = nvkm_disp_vblank_ctor, + .init = nv04_disp_vblank_init, + .fini = nv04_disp_vblank_fini, +}; + +static void +nv04_disp_intr(struct nvkm_subdev *subdev) +{ + struct nv04_disp_priv *priv = (void *)subdev; + u32 crtc0 = nv_rd32(priv, 0x600100); + u32 crtc1 = nv_rd32(priv, 0x602100); + u32 pvideo; + + if (crtc0 & 0x00000001) { + nvkm_disp_vblank(&priv->base, 0); + nv_wr32(priv, 0x600100, 0x00000001); + } + + if (crtc1 & 0x00000001) { + nvkm_disp_vblank(&priv->base, 1); + nv_wr32(priv, 0x602100, 0x00000001); + } + + if (nv_device(priv)->chipset >= 0x10 && + nv_device(priv)->chipset <= 0x40) { + pvideo = nv_rd32(priv, 0x8100); + if (pvideo & ~0x11) + nv_info(priv, "PVIDEO intr: %08x\n", pvideo); + nv_wr32(priv, 0x8100, pvideo); + } +} + +static int +nv04_disp_ctor(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, void *data, u32 size, + struct nvkm_object **pobject) +{ + struct nv04_disp_priv *priv; + int ret; + + ret = nvkm_disp_create(parent, engine, oclass, 2, "DISPLAY", + "display", &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + nv_engine(priv)->sclass = nv04_disp_sclass; + nv_subdev(priv)->intr = nv04_disp_intr; + return 0; +} + +struct nvkm_oclass * +nv04_disp_oclass = &(struct nvkm_disp_impl) { + .base.handle = NV_ENGINE(DISP, 0x04), + .base.ofuncs = &(struct nvkm_ofuncs) { + .ctor = nv04_disp_ctor, + .dtor = _nvkm_disp_dtor, + .init = _nvkm_disp_init, + .fini = _nvkm_disp_fini, + }, + .vblank = &nv04_disp_vblank_func, +}.base; |