/*
* 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 "nouveau_drv.h"
#include "nouveau_dma.h"
#include "nouveau_fence.h"
#include <nvif/if0004.h>
#include <nvif/push006c.h>
struct nv04_fence_chan {
struct nouveau_fence_chan base;
};
struct nv04_fence_priv {
struct nouveau_fence_priv base;
};
static int
nv04_fence_emit(struct nouveau_fence *fence)
{
struct nvif_push *push = &unrcu_pointer(fence->channel)->chan.push;
int ret = PUSH_WAIT(push, 2 );
if (ret == 0 ) {
PUSH_NVSQ(push, NV_SW, 0 x0150, fence->base.seqno);
PUSH_KICK(push);
}
return ret;
}
static int
nv04_fence_sync(struct nouveau_fence *fence,
struct nouveau_channel *prev, struct nouveau_channel *chan)
{
return -ENODEV;
}
static u32
nv04_fence_read(struct nouveau_channel *chan)
{
struct nv04_nvsw_get_ref_v0 args = {};
WARN_ON(nvif_object_mthd(&chan->nvsw, NV04_NVSW_GET_REF,
&args, sizeof (args)));
return args.ref;
}
static void
nv04_fence_context_del(struct nouveau_channel *chan)
{
struct nv04_fence_chan *fctx = chan->fence;
nouveau_fence_context_del(&fctx->base);
chan->fence = NULL;
nouveau_fence_context_free(&fctx->base);
}
static int
nv04_fence_context_new(struct nouveau_channel *chan)
{
struct nv04_fence_chan *fctx = kzalloc(sizeof (*fctx), GFP_KERNEL);
if (fctx) {
nouveau_fence_context_new(chan, &fctx->base);
fctx->base.emit = nv04_fence_emit;
fctx->base.sync = nv04_fence_sync;
fctx->base.read = nv04_fence_read;
chan->fence = fctx;
return 0 ;
}
return -ENOMEM;
}
static void
nv04_fence_destroy(struct nouveau_drm *drm)
{
struct nv04_fence_priv *priv = drm->fence;
drm->fence = NULL;
kfree(priv);
}
int
nv04_fence_create(struct nouveau_drm *drm)
{
struct nv04_fence_priv *priv;
priv = drm->fence = kzalloc(sizeof (*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->base.dtor = nv04_fence_destroy;
priv->base.context_new = nv04_fence_context_new;
priv->base.context_del = nv04_fence_context_del;
return 0 ;
}
Messung V0.5 in Prozent C=94 H=97 G=95
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-29)
¤
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