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/*
* Copyright 2007 Ben Skeggs
* Copyright 2007 Stephane Marchesin
*
* 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 <errno.h>
#include "nv_include.h"
static void
NVLockedUp(ScrnInfoPtr pScrn)
{
NVPtr pNv = NVPTR(pScrn);
/* avoid re-entering FatalError on shutdown */
if (pNv->LockedUp)
return;
pNv->LockedUp = TRUE;
FatalError("Detected GPU lockup\n");
}
static void
NVChannelHangNotify(struct nouveau_channel *chan)
{
ScrnInfoPtr pScrn = chan->user_private;
NVLockedUp(pScrn);
}
void NVSync(ScrnInfoPtr pScrn)
{
NVPtr pNv = NVPTR(pScrn);
struct nouveau_channel *chan = pNv->chan;
struct nouveau_grobj *gr = pNv->Nv2D ? pNv->Nv2D : pNv->NvImageBlit;
if (pNv->NoAccel)
return;
return; /* XXX */
/* Wait for nvchannel to go completely idle */
nouveau_notifier_reset(pNv->notify0, 0);
if (pNv->Architecture >= NV_ARCH_C0) {
BEGIN_RING_NVC0(chan, NvSub2D, 0x0104, 1);
OUT_RING (chan, 0);
BEGIN_RING_NVC0(chan, NvSub2D, 0x0100, 1);
OUT_RING (chan, 0);
} else {
BEGIN_RING(chan, gr, 0x104, 1);
OUT_RING (chan, 0);
BEGIN_RING(chan, gr, 0x100, 1);
OUT_RING (chan, 0);
}
FIRE_RING (chan);
if (nouveau_notifier_wait_status(pNv->notify0, 0,
NV_NOTIFY_STATE_STATUS_COMPLETED, 2.0))
NVLockedUp(pScrn);
}
Bool
NVInitDma(ScrnInfoPtr pScrn)
{
NVPtr pNv = NVPTR(pScrn);
int ret;
ret = nouveau_channel_alloc(pNv->dev, NvDmaFB, NvDmaTT, 24*1024,
&pNv->chan);
if (ret) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Error creating GPU channel: %d\n", ret);
return FALSE;
}
pNv->chan->user_private = pScrn;
pNv->chan->hang_notify = NVChannelHangNotify;
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Opened GPU channel %d\n", pNv->chan->id);
return TRUE;
}
void
NVTakedownDma(ScrnInfoPtr pScrn)
{
NVPtr pNv = NVPTR(pScrn);
if (!pNv->chan)
return;
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Closed GPU channel %d\n", pNv->chan->id);
nouveau_channel_free(&pNv->chan);
}
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