/*
* Copyright (C) 2012 Ben Skeggs.
* All Rights Reserved.
*
* 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 (including the
* next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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 <drm/drmP.h>
#include "nouveau_drv.h"
#include "nouveau_fifo.h"
#include "nouveau_util.h"
#include "nouveau_ramht.h"
static struct ramfc_desc {
unsigned bits:6;
unsigned ctxs:5;
unsigned ctxp:8;
unsigned regs:5;
unsigned regp;
} nv10_ramfc[] = {
{ 32, 0, 0x00, 0, NV04_PFIFO_CACHE1_DMA_PUT },
{ 32, 0, 0x04, 0, NV04_PFIFO_CACHE1_DMA_GET },
{ 32, 0, 0x08, 0, NV10_PFIFO_CACHE1_REF_CNT },
{ 16, 0, 0x0c, 0, NV04_PFIFO_CACHE1_DMA_INSTANCE },
{ 16, 16, 0x0c, 0, NV04_PFIFO_CACHE1_DMA_DCOUNT },
{ 32, 0, 0x10, 0, NV04_PFIFO_CACHE1_DMA_STATE },
{ 32, 0, 0x14, 0, NV04_PFIFO_CACHE1_DMA_FETCH },
{ 32, 0, 0x18, 0, NV04_PFIFO_CACHE1_ENGINE },
{ 32, 0, 0x1c, 0, NV04_PFIFO_CACHE1_PULL1 },
{}
};
struct nv10_fifo_priv {
struct nouveau_fifo_priv base;
struct ramfc_desc *ramfc_desc;
};
struct nv10_fifo_chan {
struct nouveau_fifo_chan base;
struct nouveau_gpuobj *ramfc;
};
static int
nv10_fifo_context_new(struct nouveau_channel *chan, int engine)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv10_fifo_priv *priv = nv_engine(dev, engine);
struct nv10_fifo_chan *fctx;
unsigned long flags;
int ret;
fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL);
if (!fctx)
return -ENOMEM;
/* map channel control registers */
chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
NV03_USER(chan->id), PAGE_SIZE);
if (!chan->user) {
ret = -ENOMEM;
goto error;
}
/* initialise default fifo context */
ret = nouveau_gpuobj_new_fake(dev, dev_priv->ramfc->pinst +
chan->id * 32, ~0, 32,
NVOBJ_FLAG_ZERO_FREE, &fctx->ramfc);
if (ret)
goto error;
nv_wo32(fctx->ramfc, 0x00, chan->pushbuf_base);
nv_wo32(fctx->ramfc, 0x04, chan->pushbuf_base);
nv_wo32(fctx->ramfc, 0x08, 0x00000000);
nv_wo32(fctx->ramfc, 0x0c, chan->pushbuf->pinst >> 4);
nv_wo32(fctx->ramfc, 0x10, 0x00000000);
nv_wo32(fctx->ramfc, 0x14, NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
#ifdef __BIG_ENDIAN
NV_PFIFO_CACHE1_BIG_ENDIAN |
#endif
NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8);
nv_wo32(fctx->ramfc, 0x18, 0x00000000);
nv_wo32(fctx->ramfc, 0x1c, 0x00000000);
/* enable dma mode on the channel */
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
nv_mask(dev, NV04_PFIFO_MODE, (1 << chan->id), (1 << chan->id));
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
error:
if (ret)
priv->base.base.context_del(chan, engine);
return ret;
}
int
nv10_fifo_create(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv10_fifo_priv *priv;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->base.base.destroy = nv04_fifo_destroy;
priv->base.base.init = nv04_fifo_init;
priv->base.base.fini = nv04_fifo_fini;
priv->base.base.context_new = nv10_fifo_context_new;
priv->base.base.context_del = nv04_fifo_context_del;
priv->base.channels = 31;
priv->ramfc_desc = nv10_ramfc;
dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base;
nouveau_irq_register(dev, 8, nv04_fifo_isr);
return 0;
}
