mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 04:46:32 +07:00
109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/*
|
|
* 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 <bskeggs@redhat.com>
|
|
*/
|
|
|
|
#include "nouveau_drv.h"
|
|
#include "nouveau_dma.h"
|
|
#include "nv10_fence.h"
|
|
|
|
int
|
|
nv10_fence_emit(struct nouveau_fence *fence)
|
|
{
|
|
struct nouveau_channel *chan = fence->channel;
|
|
int ret = RING_SPACE(chan, 2);
|
|
if (ret == 0) {
|
|
BEGIN_NV04(chan, 0, NV10_SUBCHAN_REF_CNT, 1);
|
|
OUT_RING (chan, fence->base.seqno);
|
|
FIRE_RING (chan);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int
|
|
nv10_fence_sync(struct nouveau_fence *fence,
|
|
struct nouveau_channel *prev, struct nouveau_channel *chan)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
u32
|
|
nv10_fence_read(struct nouveau_channel *chan)
|
|
{
|
|
return nvif_rd32(&chan->user, 0x0048);
|
|
}
|
|
|
|
void
|
|
nv10_fence_context_del(struct nouveau_channel *chan)
|
|
{
|
|
struct nv10_fence_chan *fctx = chan->fence;
|
|
nouveau_fence_context_del(&fctx->base);
|
|
nvif_object_fini(&fctx->sema);
|
|
chan->fence = NULL;
|
|
nouveau_fence_context_free(&fctx->base);
|
|
}
|
|
|
|
static int
|
|
nv10_fence_context_new(struct nouveau_channel *chan)
|
|
{
|
|
struct nv10_fence_chan *fctx;
|
|
|
|
fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);
|
|
if (!fctx)
|
|
return -ENOMEM;
|
|
|
|
nouveau_fence_context_new(chan, &fctx->base);
|
|
fctx->base.emit = nv10_fence_emit;
|
|
fctx->base.read = nv10_fence_read;
|
|
fctx->base.sync = nv10_fence_sync;
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
nv10_fence_destroy(struct nouveau_drm *drm)
|
|
{
|
|
struct nv10_fence_priv *priv = drm->fence;
|
|
nouveau_bo_unmap(priv->bo);
|
|
if (priv->bo)
|
|
nouveau_bo_unpin(priv->bo);
|
|
nouveau_bo_ref(NULL, &priv->bo);
|
|
drm->fence = NULL;
|
|
kfree(priv);
|
|
}
|
|
|
|
int
|
|
nv10_fence_create(struct nouveau_drm *drm)
|
|
{
|
|
struct nv10_fence_priv *priv;
|
|
|
|
priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
priv->base.dtor = nv10_fence_destroy;
|
|
priv->base.context_new = nv10_fence_context_new;
|
|
priv->base.context_del = nv10_fence_context_del;
|
|
spin_lock_init(&priv->lock);
|
|
return 0;
|
|
}
|