renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

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Diffstat (limited to 'linux-core/drm_crtc_helper.c')

0 files changed, 0 insertions, 0 deletions

/* * Copyright 2007 Nouveau Project * * 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 AUTHORS 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. */ #include <stdlib.h> #include <errno.h> #include "nouveau_private.h" int nouveau_grobj_alloc(struct nouveau_channel *chan, uint32_t handle, int class, struct nouveau_grobj **grobj) { struct nouveau_device_priv *nvdev = nouveau_device(chan->device); struct nouveau_grobj_priv *nvgrobj; struct drm_nouveau_grobj_alloc g; int ret; if (!nvdev || !grobj || *grobj) return -EINVAL; nvgrobj = calloc(1, sizeof(*nvgrobj)); if (!nvgrobj) return -ENOMEM; nvgrobj->base.channel = chan; nvgrobj->base.handle = handle; nvgrobj->base.grclass = class; nvgrobj->base.bound = NOUVEAU_GROBJ_UNBOUND; nvgrobj->base.subc = -1; g.channel = chan->id; g.handle = handle; g.class = class; ret = drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GROBJ_ALLOC, &g, sizeof(g)); if (ret) { nouveau_grobj_free((void *)&nvgrobj); return ret; } *grobj = &nvgrobj->base; return 0; } int nouveau_grobj_ref(struct nouveau_channel *chan, uint32_t handle, struct nouveau_grobj **grobj) { struct nouveau_grobj_priv *nvgrobj; if (!chan || !grobj || *grobj) return -EINVAL; nvgrobj = calloc(1, sizeof(struct nouveau_grobj_priv)); if (!nvgrobj) return -ENOMEM; nvgrobj->base.channel = chan; nvgrobj->base.handle = handle; nvgrobj->base.grclass = 0; *grobj = &nvgrobj->base; return 0; } void nouveau_grobj_free(struct nouveau_grobj **grobj) { struct nouveau_device_priv *nvdev; struct nouveau_channel_priv *chan; struct nouveau_grobj_priv *nvgrobj; if (!grobj || !*grobj) return; nvgrobj = nouveau_grobj(*grobj); *grobj = NULL; chan = nouveau_channel(nvgrobj->base.channel); nvdev = nouveau_device(chan->base.device); if (nvgrobj->base.grclass) { struct drm_nouveau_gpuobj_free f; FIRE_RING(&chan->base); f.channel = chan->drm.channel; f.handle = nvgrobj->base.handle; drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GPUOBJ_FREE, &f, sizeof(f)); } free(nvgrobj); } void nouveau_grobj_autobind(struct nouveau_grobj *grobj) { struct nouveau_channel *chan = grobj->channel; struct nouveau_subchannel *subc = NULL; int i; for (i = 0; i < 8; i++) { struct nouveau_subchannel *scc = &grobj->channel->subc[i]; if (scc->gr && scc->gr->bound == NOUVEAU_GROBJ_BOUND_EXPLICIT) continue; if (!subc || scc->sequence < subc->sequence) subc = scc; } if (subc->gr) { subc->gr->bound = NOUVEAU_GROBJ_UNBOUND; subc->gr->subc = -1; } subc->gr = grobj; subc->gr->bound = NOUVEAU_GROBJ_BOUND; subc->gr->subc = subc - &grobj->channel->subc[0]; WAIT_RING(chan, 2); if (chan->device->chipset < 0xc0) { OUT_RING (chan, (1 << 18) | (grobj->subc << 13)); OUT_RING (chan, grobj->handle); } else { OUT_RING (chan, (2 << 28) | (1 << 16) | (grobj->subc << 13)); OUT_RING (chan, grobj->grclass); } }


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