149 lines
3.9 KiB
C
149 lines
3.9 KiB
C
/*
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* Copyright 2007 Nouveau Project
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <stdlib.h>
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#include <errno.h>
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#include "nouveau_private.h"
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int
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nouveau_grobj_alloc(struct nouveau_channel *chan, uint32_t handle,
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int class, struct nouveau_grobj **grobj)
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{
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struct nouveau_device_priv *nvdev = nouveau_device(chan->device);
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struct nouveau_grobj_priv *nvgrobj;
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struct drm_nouveau_grobj_alloc g;
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int ret;
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if (!nvdev || !grobj || *grobj)
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return -EINVAL;
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nvgrobj = calloc(1, sizeof(*nvgrobj));
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if (!nvgrobj)
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return -ENOMEM;
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nvgrobj->base.channel = chan;
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nvgrobj->base.handle = handle;
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nvgrobj->base.grclass = class;
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nvgrobj->base.bound = NOUVEAU_GROBJ_UNBOUND;
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nvgrobj->base.subc = -1;
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g.channel = chan->id;
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g.handle = handle;
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g.class = class;
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ret = drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GROBJ_ALLOC,
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&g, sizeof(g));
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if (ret) {
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nouveau_grobj_free((void *)&nvgrobj);
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return ret;
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}
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*grobj = &nvgrobj->base;
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return 0;
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}
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int
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nouveau_grobj_ref(struct nouveau_channel *chan, uint32_t handle,
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struct nouveau_grobj **grobj)
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{
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struct nouveau_grobj_priv *nvgrobj;
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if (!chan || !grobj || *grobj)
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return -EINVAL;
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nvgrobj = calloc(1, sizeof(struct nouveau_grobj_priv));
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if (!nvgrobj)
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return -ENOMEM;
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nvgrobj->base.channel = chan;
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nvgrobj->base.handle = handle;
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nvgrobj->base.grclass = 0;
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*grobj = &nvgrobj->base;
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return 0;
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}
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void
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nouveau_grobj_free(struct nouveau_grobj **grobj)
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{
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struct nouveau_device_priv *nvdev;
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struct nouveau_channel_priv *chan;
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struct nouveau_grobj_priv *nvgrobj;
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if (!grobj || !*grobj)
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return;
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nvgrobj = nouveau_grobj(*grobj);
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*grobj = NULL;
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chan = nouveau_channel(nvgrobj->base.channel);
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nvdev = nouveau_device(chan->base.device);
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if (nvgrobj->base.grclass) {
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struct drm_nouveau_gpuobj_free f;
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FIRE_RING(&chan->base);
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f.channel = chan->drm.channel;
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f.handle = nvgrobj->base.handle;
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drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GPUOBJ_FREE,
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&f, sizeof(f));
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}
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if (nvgrobj->base.bound != NOUVEAU_GROBJ_UNBOUND)
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chan->base.subc[nvgrobj->base.subc].gr = NULL;
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free(nvgrobj);
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}
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void
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nouveau_grobj_autobind(struct nouveau_grobj *grobj)
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{
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struct nouveau_channel *chan = grobj->channel;
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struct nouveau_subchannel *subc = NULL;
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int i;
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for (i = 0; i < 8; i++) {
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struct nouveau_subchannel *scc = &grobj->channel->subc[i];
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if (scc->gr && scc->gr->bound == NOUVEAU_GROBJ_BOUND_EXPLICIT)
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continue;
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if (!subc || scc->sequence < subc->sequence)
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subc = scc;
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}
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if (subc->gr) {
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subc->gr->bound = NOUVEAU_GROBJ_UNBOUND;
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subc->gr->subc = -1;
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}
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subc->gr = grobj;
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subc->gr->bound = NOUVEAU_GROBJ_BOUND;
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subc->gr->subc = subc - &grobj->channel->subc[0];
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WAIT_RING(chan, 2);
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if (chan->device->chipset < 0xc0) {
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OUT_RING (chan, (1 << 18) | (grobj->subc << 13));
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OUT_RING (chan, grobj->handle);
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} else {
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OUT_RING (chan, (2 << 28) | (1 << 16) | (grobj->subc << 13));
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OUT_RING (chan, grobj->grclass);
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}
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}
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