diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_software.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_software.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_software.c b/drivers/gpu/drm/nouveau/nv50_software.c new file mode 100644 index 000000000000..0e64d80d5363 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv50_software.c @@ -0,0 +1,190 @@ +/* + * 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 "drmP.h" +#include "nouveau_drv.h" +#include "nouveau_ramht.h" +#include "nouveau_software.h" + +struct nv50_software_priv { + struct nouveau_software_priv base; +}; + +struct nv50_software_chan { + struct nouveau_software_chan base; + struct { + struct nouveau_gpuobj *object; + } vblank; +}; + +static int +mthd_dma_vblsem(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data) +{ + struct nv50_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW]; + struct nouveau_gpuobj *gpuobj; + + gpuobj = nouveau_ramht_find(chan, data); + if (!gpuobj) + return -ENOENT; + + if (nouveau_notifier_offset(gpuobj, NULL)) + return -EINVAL; + + pch->vblank.object = gpuobj; + pch->base.vblank.offset = ~0; + return 0; +} + +static int +mthd_vblsem_offset(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data) +{ + struct nv50_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW]; + + if (nouveau_notifier_offset(pch->vblank.object, &data)) + return -ERANGE; + + pch->base.vblank.offset = data >> 2; + return 0; +} + +static int +mthd_vblsem_value(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data) +{ + struct nv50_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW]; + pch->base.vblank.value = data; + return 0; +} + +static int +mthd_vblsem_release(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data) +{ + struct nv50_software_priv *psw = nv_engine(chan->dev, NVOBJ_ENGINE_SW); + struct nv50_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW]; + struct drm_device *dev = chan->dev; + + if (!pch->vblank.object || pch->base.vblank.offset == ~0 || data > 1) + return -EINVAL; + + drm_vblank_get(dev, data); + + pch->base.vblank.head = data; + list_add(&pch->base.vblank.list, &psw->base.vblank); + return 0; +} + +static int +mthd_flip(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data) +{ + nouveau_finish_page_flip(chan, NULL); + return 0; +} + +static int +nv50_software_context_new(struct nouveau_channel *chan, int engine) +{ + struct nv50_software_chan *pch; + + pch = kzalloc(sizeof(*pch), GFP_KERNEL); + if (!pch) + return -ENOMEM; + + nouveau_software_context_new(&pch->base); + pch->base.vblank.bo = chan->notifier_bo; + + chan->engctx[engine] = pch; + return 0; +} + +static void +nv50_software_context_del(struct nouveau_channel *chan, int engine) +{ + struct nv50_software_chan *pch = chan->engctx[engine]; + chan->engctx[engine] = NULL; + kfree(pch); +} + +static int +nv50_software_object_new(struct nouveau_channel *chan, int engine, + u32 handle, u16 class) +{ + struct drm_device *dev = chan->dev; + struct nouveau_gpuobj *obj = NULL; + int ret; + + ret = nouveau_gpuobj_new(dev, chan, 16, 16, 0, &obj); + if (ret) + return ret; + obj->engine = 0; + obj->class = class; + + ret = nouveau_ramht_insert(chan, handle, obj); + nouveau_gpuobj_ref(NULL, &obj); + return ret; +} + +static int +nv50_software_init(struct drm_device *dev, int engine) +{ + return 0; +} + +static int +nv50_software_fini(struct drm_device *dev, int engine, bool suspend) +{ + return 0; +} + +static void +nv50_software_destroy(struct drm_device *dev, int engine) +{ + struct nv50_software_priv *psw = nv_engine(dev, engine); + + NVOBJ_ENGINE_DEL(dev, SW); + kfree(psw); +} + +int +nv50_software_create(struct drm_device *dev) +{ + struct nv50_software_priv *psw = kzalloc(sizeof(*psw), GFP_KERNEL); + if (!psw) + return -ENOMEM; + + psw->base.base.destroy = nv50_software_destroy; + psw->base.base.init = nv50_software_init; + psw->base.base.fini = nv50_software_fini; + psw->base.base.context_new = nv50_software_context_new; + psw->base.base.context_del = nv50_software_context_del; + psw->base.base.object_new = nv50_software_object_new; + nouveau_software_create(&psw->base); + + NVOBJ_ENGINE_ADD(dev, SW, &psw->base.base); + NVOBJ_CLASS(dev, 0x506e, SW); + NVOBJ_MTHD (dev, 0x506e, 0x018c, mthd_dma_vblsem); + NVOBJ_MTHD (dev, 0x506e, 0x0400, mthd_vblsem_offset); + NVOBJ_MTHD (dev, 0x506e, 0x0404, mthd_vblsem_value); + NVOBJ_MTHD (dev, 0x506e, 0x0408, mthd_vblsem_release); + NVOBJ_MTHD (dev, 0x506e, 0x0500, mthd_flip); + return 0; +} |