diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_software.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_software.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_software.c b/drivers/gpu/drm/nouveau/nvc0_software.c new file mode 100644 index 00000000000..93e8c164fec --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvc0_software.c @@ -0,0 +1,153 @@ +/* + * 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" + +#include "nv50_display.h" + +struct nvc0_software_priv { + struct nouveau_software_priv base; +}; + +struct nvc0_software_chan { + struct nouveau_software_chan base; + struct nouveau_vma dispc_vma[4]; +}; + +u64 +nvc0_software_crtc(struct nouveau_channel *chan, int crtc) +{ + struct nvc0_software_chan *pch = chan->engctx[NVOBJ_ENGINE_SW]; + return pch->dispc_vma[crtc].offset; +} + +static int +nvc0_software_context_new(struct nouveau_channel *chan, int engine) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nvc0_software_priv *psw = nv_engine(dev, NVOBJ_ENGINE_SW); + struct nvc0_software_chan *pch; + int ret = 0, i; + + pch = kzalloc(sizeof(*pch), GFP_KERNEL); + if (!pch) + return -ENOMEM; + + nouveau_software_context_new(&pch->base); + chan->engctx[engine] = pch; + + /* map display semaphore buffers into channel's vm */ + for (i = 0; !ret && i < dev->mode_config.num_crtc; i++) { + struct nouveau_bo *bo; + if (dev_priv->card_type >= NV_D0) + bo = nvd0_display_crtc_sema(dev, i); + else + bo = nv50_display(dev)->crtc[i].sem.bo; + + ret = nouveau_bo_vma_add(bo, chan->vm, &pch->dispc_vma[i]); + } + + if (ret) + psw->base.base.context_del(chan, engine); + return ret; +} + +static void +nvc0_software_context_del(struct nouveau_channel *chan, int engine) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nvc0_software_chan *pch = chan->engctx[engine]; + int i; + + if (dev_priv->card_type >= NV_D0) { + for (i = 0; i < dev->mode_config.num_crtc; i++) { + struct nouveau_bo *bo = nvd0_display_crtc_sema(dev, i); + nouveau_bo_vma_del(bo, &pch->dispc_vma[i]); + } + } else + if (dev_priv->card_type >= NV_50) { + struct nv50_display *disp = nv50_display(dev); + for (i = 0; i < dev->mode_config.num_crtc; i++) { + struct nv50_display_crtc *dispc = &disp->crtc[i]; + nouveau_bo_vma_del(dispc->sem.bo, &pch->dispc_vma[i]); + } + } + + chan->engctx[engine] = NULL; + kfree(pch); +} + +static int +nvc0_software_object_new(struct nouveau_channel *chan, int engine, + u32 handle, u16 class) +{ + return 0; +} + +static int +nvc0_software_init(struct drm_device *dev, int engine) +{ + return 0; +} + +static int +nvc0_software_fini(struct drm_device *dev, int engine, bool suspend) +{ + return 0; +} + +static void +nvc0_software_destroy(struct drm_device *dev, int engine) +{ + struct nvc0_software_priv *psw = nv_engine(dev, engine); + + NVOBJ_ENGINE_DEL(dev, SW); + kfree(psw); +} + +int +nvc0_software_create(struct drm_device *dev) +{ + struct nvc0_software_priv *psw = kzalloc(sizeof(*psw), GFP_KERNEL); + if (!psw) + return -ENOMEM; + + psw->base.base.destroy = nvc0_software_destroy; + psw->base.base.init = nvc0_software_init; + psw->base.base.fini = nvc0_software_fini; + psw->base.base.context_new = nvc0_software_context_new; + psw->base.base.context_del = nvc0_software_context_del; + psw->base.base.object_new = nvc0_software_object_new; + nouveau_software_create(&psw->base); + + NVOBJ_ENGINE_ADD(dev, SW, &psw->base.base); + NVOBJ_CLASS(dev, 0x906e, SW); + return 0; +} |