diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv17_fifo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv17_fifo.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv17_fifo.c b/drivers/gpu/drm/nouveau/nv17_fifo.c new file mode 100644 index 00000000000..d9e482e4abe --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv17_fifo.c @@ -0,0 +1,177 @@ +/* + * 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 "drmP.h" +#include "drm.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; +} nv17_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 }, + { 32, 0, 0x20, 0, NV10_PFIFO_CACHE1_ACQUIRE_VALUE }, + { 32, 0, 0x24, 0, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP }, + { 32, 0, 0x28, 0, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT }, + { 32, 0, 0x2c, 0, NV10_PFIFO_CACHE1_SEMAPHORE }, + { 32, 0, 0x30, 0, NV10_PFIFO_CACHE1_DMA_SUBROUTINE }, + {} +}; + +struct nv17_fifo_priv { + struct nouveau_fifo_priv base; + struct ramfc_desc *ramfc_desc; +}; + +struct nv17_fifo_chan { + struct nouveau_fifo_chan base; + struct nouveau_gpuobj *ramfc; +}; + +static int +nv17_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 nv17_fifo_priv *priv = nv_engine(dev, engine); + struct nv17_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 * 64, ~0, 64, + NVOBJ_FLAG_ZERO_ALLOC | + 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, 0x0c, chan->pushbuf->pinst >> 4); + 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); + + /* 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; +} + +static int +nv17_fifo_init(struct drm_device *dev, int engine) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv17_fifo_priv *priv = nv_engine(dev, engine); + int i; + + nv_mask(dev, NV03_PMC_ENABLE, NV_PMC_ENABLE_PFIFO, 0); + nv_mask(dev, NV03_PMC_ENABLE, NV_PMC_ENABLE_PFIFO, NV_PMC_ENABLE_PFIFO); + + nv_wr32(dev, NV04_PFIFO_DELAY_0, 0x000000ff); + nv_wr32(dev, NV04_PFIFO_DMA_TIMESLICE, 0x0101ffff); + + 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); + nv_wr32(dev, NV03_PFIFO_RAMFC, 0x00010000 | + dev_priv->ramfc->pinst >> 8); + + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, priv->base.channels); + + nv_wr32(dev, NV03_PFIFO_INTR_0, 0xffffffff); + nv_wr32(dev, NV03_PFIFO_INTR_EN_0, 0xffffffff); + + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 1); + nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1); + nv_wr32(dev, NV03_PFIFO_CACHES, 1); + + for (i = 0; i < priv->base.channels; i++) { + if (dev_priv->channels.ptr[i]) + nv_mask(dev, NV04_PFIFO_MODE, (1 << i), (1 << i)); + } + + return 0; +} + +int +nv17_fifo_create(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv17_fifo_priv *priv; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->base.base.destroy = nv04_fifo_destroy; + priv->base.base.init = nv17_fifo_init; + priv->base.base.fini = nv04_fifo_fini; + priv->base.base.context_new = nv17_fifo_context_new; + priv->base.base.context_del = nv04_fifo_context_del; + priv->base.channels = 31; + priv->ramfc_desc = nv17_ramfc; + dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base; + + nouveau_irq_register(dev, 8, nv04_fifo_isr); + return 0; +} |