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alistair23-linux/drivers/gpu/drm/nouveau/nv10_fifo.c
Ben Skeggs d908175cca drm/nouveau: make fifo.create_context() responsible for mapping control regs 
The regs belong to PFIFO, they're different for pretty much the same
generations we need different PFIFO control for, and NVC0 is going
to be even more different than the rest.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-12-08 03:00:34 +01:00

247 lines
7.8 KiB
C
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/*
* Copyright (C) 2007 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 "drmP.h"
#include "drm.h"
#include "nouveau_drv.h"
#include "nouveau_ramht.h"
#define NV10_RAMFC(c) (dev_priv->ramfc->pinst + ((c) * NV10_RAMFC__SIZE))
#define NV10_RAMFC__SIZE ((dev_priv->chipset) >= 0x17 ? 64 : 32)
int
nv10_fifo_channel_id(struct drm_device *dev)
{
return nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH1) &
NV10_PFIFO_CACHE1_PUSH1_CHID_MASK;
}
int
nv10_fifo_create_context(struct nouveau_channel *chan)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct drm_device *dev = chan->dev;
uint32_t fc = NV10_RAMFC(chan->id);
int ret;
ret = nouveau_gpuobj_new_fake(dev, NV10_RAMFC(chan->id), ~0,
NV10_RAMFC__SIZE, NVOBJ_FLAG_ZERO_ALLOC |
NVOBJ_FLAG_ZERO_FREE, &chan->ramfc);
if (ret)
return ret;
chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
NV03_USER(chan->id), PAGE_SIZE);
if (!chan->user)
return -ENOMEM;
/* Fill entries that are seen filled in dumps of nvidia driver just
* after channel's is put into DMA mode
*/
nv_wi32(dev, fc + 0, chan->pushbuf_base);
nv_wi32(dev, fc + 4, chan->pushbuf_base);
nv_wi32(dev, fc + 12, chan->pushbuf->pinst >> 4);
nv_wi32(dev, fc + 20, NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8 |
#ifdef __BIG_ENDIAN
NV_PFIFO_CACHE1_BIG_ENDIAN |
#endif
0);
/* enable the fifo dma operation */
nv_wr32(dev, NV04_PFIFO_MODE,
nv_rd32(dev, NV04_PFIFO_MODE) | (1 << chan->id));
return 0;
}
static void
nv10_fifo_do_load_context(struct drm_device *dev, int chid)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
uint32_t fc = NV10_RAMFC(chid), tmp;
nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUT, nv_ri32(dev, fc + 0));
nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_GET, nv_ri32(dev, fc + 4));
nv_wr32(dev, NV10_PFIFO_CACHE1_REF_CNT, nv_ri32(dev, fc + 8));
tmp = nv_ri32(dev, fc + 12);
nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE, tmp & 0xFFFF);
nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT, tmp >> 16);
nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_STATE, nv_ri32(dev, fc + 16));
nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_FETCH, nv_ri32(dev, fc + 20));
nv_wr32(dev, NV04_PFIFO_CACHE1_ENGINE, nv_ri32(dev, fc + 24));
nv_wr32(dev, NV04_PFIFO_CACHE1_PULL1, nv_ri32(dev, fc + 28));
if (dev_priv->chipset < 0x17)
goto out;
nv_wr32(dev, NV10_PFIFO_CACHE1_ACQUIRE_VALUE, nv_ri32(dev, fc + 32));
tmp = nv_ri32(dev, fc + 36);
nv_wr32(dev, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP, tmp);
nv_wr32(dev, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT, nv_ri32(dev, fc + 40));
nv_wr32(dev, NV10_PFIFO_CACHE1_SEMAPHORE, nv_ri32(dev, fc + 44));
nv_wr32(dev, NV10_PFIFO_CACHE1_DMA_SUBROUTINE, nv_ri32(dev, fc + 48));
out:
nv_wr32(dev, NV03_PFIFO_CACHE1_GET, 0);
nv_wr32(dev, NV03_PFIFO_CACHE1_PUT, 0);
}
int
nv10_fifo_load_context(struct nouveau_channel *chan)
{
struct drm_device *dev = chan->dev;
uint32_t tmp;
nv10_fifo_do_load_context(dev, chan->id);
nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1,
NV03_PFIFO_CACHE1_PUSH1_DMA | chan->id);
nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUSH, 1);
/* Reset NV04_PFIFO_CACHE1_DMA_CTL_AT_INFO to INVALID */
tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_CTL) & ~(1 << 31);
nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_CTL, tmp);
return 0;
}
int
nv10_fifo_unload_context(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
uint32_t fc, tmp;
int chid;
chid = pfifo->channel_id(dev);
if (chid < 0 || chid >= dev_priv->engine.fifo.channels)
return 0;
fc = NV10_RAMFC(chid);
nv_wi32(dev, fc + 0, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUT));
nv_wi32(dev, fc + 4, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_GET));
nv_wi32(dev, fc + 8, nv_rd32(dev, NV10_PFIFO_CACHE1_REF_CNT));
tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE) & 0xFFFF;
tmp |= (nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT) << 16);
nv_wi32(dev, fc + 12, tmp);
nv_wi32(dev, fc + 16, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_STATE));
nv_wi32(dev, fc + 20, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_FETCH));
nv_wi32(dev, fc + 24, nv_rd32(dev, NV04_PFIFO_CACHE1_ENGINE));
nv_wi32(dev, fc + 28, nv_rd32(dev, NV04_PFIFO_CACHE1_PULL1));
if (dev_priv->chipset < 0x17)
goto out;
nv_wi32(dev, fc + 32, nv_rd32(dev, NV10_PFIFO_CACHE1_ACQUIRE_VALUE));
tmp = nv_rd32(dev, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP);
nv_wi32(dev, fc + 36, tmp);
nv_wi32(dev, fc + 40, nv_rd32(dev, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT));
nv_wi32(dev, fc + 44, nv_rd32(dev, NV10_PFIFO_CACHE1_SEMAPHORE));
nv_wi32(dev, fc + 48, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_GET));
out:
nv10_fifo_do_load_context(dev, pfifo->channels - 1);
nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1);
return 0;
}
static void
nv10_fifo_init_reset(struct drm_device *dev)
{
nv_wr32(dev, NV03_PMC_ENABLE,
nv_rd32(dev, NV03_PMC_ENABLE) & ~NV_PMC_ENABLE_PFIFO);
nv_wr32(dev, NV03_PMC_ENABLE,
nv_rd32(dev, NV03_PMC_ENABLE) | NV_PMC_ENABLE_PFIFO);
nv_wr32(dev, 0x003224, 0x000f0078);
nv_wr32(dev, 0x002044, 0x0101ffff);
nv_wr32(dev, 0x002040, 0x000000ff);
nv_wr32(dev, 0x002500, 0x00000000);
nv_wr32(dev, 0x003000, 0x00000000);
nv_wr32(dev, 0x003050, 0x00000000);
nv_wr32(dev, 0x003258, 0x00000000);
nv_wr32(dev, 0x003210, 0x00000000);
nv_wr32(dev, 0x003270, 0x00000000);
}
static void
nv10_fifo_init_ramxx(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
nv_wr32(dev, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
((dev_priv->ramht->bits - 9) << 16) |
(dev_priv->ramht->gpuobj->pinst >> 8));
nv_wr32(dev, NV03_PFIFO_RAMRO, dev_priv->ramro->pinst >> 8);
if (dev_priv->chipset < 0x17) {
nv_wr32(dev, NV03_PFIFO_RAMFC, dev_priv->ramfc->pinst >> 8);
} else {
nv_wr32(dev, NV03_PFIFO_RAMFC, (dev_priv->ramfc->pinst >> 8) |
(1 << 16) /* 64 Bytes entry*/);
/* XXX nvidia blob set bit 18, 21,23 for nv20 & nv30 */
}
}
static void
nv10_fifo_init_intr(struct drm_device *dev)
{
nouveau_irq_register(dev, 8, nv04_fifo_isr);
nv_wr32(dev, 0x002100, 0xffffffff);
nv_wr32(dev, 0x002140, 0xffffffff);
}
int
nv10_fifo_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
int i;
nv10_fifo_init_reset(dev);
nv10_fifo_init_ramxx(dev);
nv10_fifo_do_load_context(dev, pfifo->channels - 1);
nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1);
nv10_fifo_init_intr(dev);
pfifo->enable(dev);
pfifo->reassign(dev, true);
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
if (dev_priv->channels.ptr[i]) {
uint32_t mode = nv_rd32(dev, NV04_PFIFO_MODE);
nv_wr32(dev, NV04_PFIFO_MODE, mode | (1 << i));
}
}
return 0;
}
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