diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c new file mode 100644 index 00000000000..d93efbcf75b --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/engine/disp/nvd0.c @@ -0,0 +1,118 @@ +/* + * 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 <subdev/bar.h> + +#include <engine/software.h> +#include <engine/disp.h> + +struct nvd0_disp_priv { + struct nouveau_disp base; +}; + +static struct nouveau_oclass +nvd0_disp_sclass[] = { + {}, +}; + +static void +nvd0_disp_intr_vblank(struct nvd0_disp_priv *priv, int crtc) +{ + struct nouveau_bar *bar = nouveau_bar(priv); + struct nouveau_disp *disp = &priv->base; + struct nouveau_software_chan *chan, *temp; + unsigned long flags; + + spin_lock_irqsave(&disp->vblank.lock, flags); + list_for_each_entry_safe(chan, temp, &disp->vblank.list, vblank.head) { + if (chan->vblank.crtc != crtc) + continue; + + nv_wr32(priv, 0x001718, 0x80000000 | chan->vblank.channel); + bar->flush(bar); + nv_wr32(priv, 0x06000c, upper_32_bits(chan->vblank.offset)); + nv_wr32(priv, 0x060010, lower_32_bits(chan->vblank.offset)); + nv_wr32(priv, 0x060014, chan->vblank.value); + + list_del(&chan->vblank.head); + if (disp->vblank.put) + disp->vblank.put(disp->vblank.data, crtc); + } + spin_unlock_irqrestore(&disp->vblank.lock, flags); + + if (disp->vblank.notify) + disp->vblank.notify(disp->vblank.data, crtc); +} + +static void +nvd0_disp_intr(struct nouveau_subdev *subdev) +{ + struct nvd0_disp_priv *priv = (void *)subdev; + u32 intr = nv_rd32(priv, 0x610088); + int i; + + for (i = 0; i < 4; i++) { + u32 mask = 0x01000000 << i; + if (mask & intr) { + u32 stat = nv_rd32(priv, 0x6100bc + (i * 0x800)); + if (stat & 0x00000001) + nvd0_disp_intr_vblank(priv, i); + nv_mask(priv, 0x6100bc + (i * 0x800), 0, 0); + nv_rd32(priv, 0x6100c0 + (i * 0x800)); + } + } +} + +static int +nvd0_disp_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nvd0_disp_priv *priv; + int ret; + + ret = nouveau_disp_create(parent, engine, oclass, "PDISP", + "display", &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + nv_engine(priv)->sclass = nvd0_disp_sclass; + nv_subdev(priv)->intr = nvd0_disp_intr; + + INIT_LIST_HEAD(&priv->base.vblank.list); + spin_lock_init(&priv->base.vblank.lock); + return 0; +} + +struct nouveau_oclass +nvd0_disp_oclass = { + .handle = NV_ENGINE(DISP, 0xd0), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nvd0_disp_ctor, + .dtor = _nouveau_disp_dtor, + .init = _nouveau_disp_init, + .fini = _nouveau_disp_fini, + }, +}; |