306 lines
9.0 KiB
C
306 lines
9.0 KiB
C
/*
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* Copyright (C) 2007 Ben Skeggs.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "nouveau_drv.h"
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#define NV04_RAMFC(c) (dev_priv->ramfc_offset + ((c) * NV04_RAMFC__SIZE))
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#define NV04_RAMFC__SIZE 32
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#define NV04_RAMFC_DMA_PUT 0x00
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#define NV04_RAMFC_DMA_GET 0x04
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#define NV04_RAMFC_DMA_INSTANCE 0x08
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#define NV04_RAMFC_DMA_STATE 0x0C
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#define NV04_RAMFC_DMA_FETCH 0x10
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#define NV04_RAMFC_ENGINE 0x14
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#define NV04_RAMFC_PULL1_ENGINE 0x18
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#define RAMFC_WR(offset, val) nv_wo32(dev, chan->ramfc->gpuobj, \
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NV04_RAMFC_##offset/4, (val))
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#define RAMFC_RD(offset) nv_ro32(dev, chan->ramfc->gpuobj, \
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NV04_RAMFC_##offset/4)
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void
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nv04_fifo_disable(struct drm_device *dev)
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{
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uint32_t tmp;
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tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUSH);
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nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUSH, tmp & ~1);
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nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 0);
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tmp = nv_rd32(dev, NV03_PFIFO_CACHE1_PULL1);
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nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, tmp & ~1);
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}
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void
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nv04_fifo_enable(struct drm_device *dev)
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{
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nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 1);
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nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1);
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}
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bool
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nv04_fifo_reassign(struct drm_device *dev, bool enable)
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{
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uint32_t reassign = nv_rd32(dev, NV03_PFIFO_CACHES);
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nv_wr32(dev, NV03_PFIFO_CACHES, enable ? 1 : 0);
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return (reassign == 1);
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}
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bool
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nv04_fifo_cache_flush(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
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uint64_t start = ptimer->read(dev);
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do {
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if (nv_rd32(dev, NV03_PFIFO_CACHE1_GET) ==
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nv_rd32(dev, NV03_PFIFO_CACHE1_PUT))
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return true;
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} while (ptimer->read(dev) - start < 100000000);
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NV_ERROR(dev, "Timeout flushing the PFIFO cache.\n");
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return false;
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}
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bool
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nv04_fifo_cache_pull(struct drm_device *dev, bool enable)
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{
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uint32_t pull = nv_rd32(dev, NV04_PFIFO_CACHE1_PULL0);
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if (enable) {
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nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, pull | 1);
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} else {
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nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, pull & ~1);
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nv_wr32(dev, NV04_PFIFO_CACHE1_HASH, 0);
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}
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return !!(pull & 1);
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}
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int
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nv04_fifo_channel_id(struct drm_device *dev)
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{
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return nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH1) &
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NV03_PFIFO_CACHE1_PUSH1_CHID_MASK;
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}
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int
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nv04_fifo_create_context(struct nouveau_channel *chan)
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{
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struct drm_device *dev = chan->dev;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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int ret;
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ret = nouveau_gpuobj_new_fake(dev, NV04_RAMFC(chan->id), ~0,
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NV04_RAMFC__SIZE,
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NVOBJ_FLAG_ZERO_ALLOC |
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NVOBJ_FLAG_ZERO_FREE,
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NULL, &chan->ramfc);
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if (ret)
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return ret;
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/* Setup initial state */
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dev_priv->engine.instmem.prepare_access(dev, true);
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RAMFC_WR(DMA_PUT, chan->pushbuf_base);
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RAMFC_WR(DMA_GET, chan->pushbuf_base);
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RAMFC_WR(DMA_INSTANCE, chan->pushbuf->instance >> 4);
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RAMFC_WR(DMA_FETCH, (NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
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NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
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NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8 |
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#ifdef __BIG_ENDIAN
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NV_PFIFO_CACHE1_BIG_ENDIAN |
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#endif
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0));
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dev_priv->engine.instmem.finish_access(dev);
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/* enable the fifo dma operation */
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nv_wr32(dev, NV04_PFIFO_MODE,
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nv_rd32(dev, NV04_PFIFO_MODE) | (1 << chan->id));
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return 0;
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}
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void
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nv04_fifo_destroy_context(struct nouveau_channel *chan)
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{
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struct drm_device *dev = chan->dev;
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nv_wr32(dev, NV04_PFIFO_MODE,
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nv_rd32(dev, NV04_PFIFO_MODE) & ~(1 << chan->id));
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nouveau_gpuobj_ref_del(dev, &chan->ramfc);
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}
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static void
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nv04_fifo_do_load_context(struct drm_device *dev, int chid)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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uint32_t fc = NV04_RAMFC(chid), tmp;
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dev_priv->engine.instmem.prepare_access(dev, false);
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nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUT, nv_ri32(dev, fc + 0));
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nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_GET, nv_ri32(dev, fc + 4));
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tmp = nv_ri32(dev, fc + 8);
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nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE, tmp & 0xFFFF);
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nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT, tmp >> 16);
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nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_STATE, nv_ri32(dev, fc + 12));
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nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_FETCH, nv_ri32(dev, fc + 16));
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nv_wr32(dev, NV04_PFIFO_CACHE1_ENGINE, nv_ri32(dev, fc + 20));
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nv_wr32(dev, NV04_PFIFO_CACHE1_PULL1, nv_ri32(dev, fc + 24));
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dev_priv->engine.instmem.finish_access(dev);
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nv_wr32(dev, NV03_PFIFO_CACHE1_GET, 0);
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nv_wr32(dev, NV03_PFIFO_CACHE1_PUT, 0);
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}
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int
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nv04_fifo_load_context(struct nouveau_channel *chan)
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{
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uint32_t tmp;
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nv_wr32(chan->dev, NV03_PFIFO_CACHE1_PUSH1,
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NV03_PFIFO_CACHE1_PUSH1_DMA | chan->id);
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nv04_fifo_do_load_context(chan->dev, chan->id);
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nv_wr32(chan->dev, NV04_PFIFO_CACHE1_DMA_PUSH, 1);
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/* Reset NV04_PFIFO_CACHE1_DMA_CTL_AT_INFO to INVALID */
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tmp = nv_rd32(chan->dev, NV04_PFIFO_CACHE1_DMA_CTL) & ~(1 << 31);
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nv_wr32(chan->dev, NV04_PFIFO_CACHE1_DMA_CTL, tmp);
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return 0;
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}
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int
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nv04_fifo_unload_context(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
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struct nouveau_channel *chan = NULL;
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uint32_t tmp;
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int chid;
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chid = pfifo->channel_id(dev);
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if (chid < 0 || chid >= dev_priv->engine.fifo.channels)
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return 0;
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chan = dev_priv->fifos[chid];
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if (!chan) {
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NV_ERROR(dev, "Inactive channel on PFIFO: %d\n", chid);
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return -EINVAL;
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}
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dev_priv->engine.instmem.prepare_access(dev, true);
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RAMFC_WR(DMA_PUT, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUT));
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RAMFC_WR(DMA_GET, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_GET));
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tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT) << 16;
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tmp |= nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE);
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RAMFC_WR(DMA_INSTANCE, tmp);
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RAMFC_WR(DMA_STATE, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_STATE));
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RAMFC_WR(DMA_FETCH, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_FETCH));
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RAMFC_WR(ENGINE, nv_rd32(dev, NV04_PFIFO_CACHE1_ENGINE));
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RAMFC_WR(PULL1_ENGINE, nv_rd32(dev, NV04_PFIFO_CACHE1_PULL1));
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dev_priv->engine.instmem.finish_access(dev);
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nv04_fifo_do_load_context(dev, pfifo->channels - 1);
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nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1);
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return 0;
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}
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static void
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nv04_fifo_init_reset(struct drm_device *dev)
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{
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nv_wr32(dev, NV03_PMC_ENABLE,
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nv_rd32(dev, NV03_PMC_ENABLE) & ~NV_PMC_ENABLE_PFIFO);
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nv_wr32(dev, NV03_PMC_ENABLE,
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nv_rd32(dev, NV03_PMC_ENABLE) | NV_PMC_ENABLE_PFIFO);
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nv_wr32(dev, 0x003224, 0x000f0078);
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nv_wr32(dev, 0x002044, 0x0101ffff);
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nv_wr32(dev, 0x002040, 0x000000ff);
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nv_wr32(dev, 0x002500, 0x00000000);
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nv_wr32(dev, 0x003000, 0x00000000);
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nv_wr32(dev, 0x003050, 0x00000000);
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nv_wr32(dev, 0x003200, 0x00000000);
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nv_wr32(dev, 0x003250, 0x00000000);
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nv_wr32(dev, 0x003220, 0x00000000);
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nv_wr32(dev, 0x003250, 0x00000000);
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nv_wr32(dev, 0x003270, 0x00000000);
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nv_wr32(dev, 0x003210, 0x00000000);
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}
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static void
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nv04_fifo_init_ramxx(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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nv_wr32(dev, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
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((dev_priv->ramht_bits - 9) << 16) |
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(dev_priv->ramht_offset >> 8));
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nv_wr32(dev, NV03_PFIFO_RAMRO, dev_priv->ramro_offset>>8);
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nv_wr32(dev, NV03_PFIFO_RAMFC, dev_priv->ramfc_offset >> 8);
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}
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static void
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nv04_fifo_init_intr(struct drm_device *dev)
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{
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nv_wr32(dev, 0x002100, 0xffffffff);
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nv_wr32(dev, 0x002140, 0xffffffff);
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}
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int
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nv04_fifo_init(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
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int i;
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nv04_fifo_init_reset(dev);
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nv04_fifo_init_ramxx(dev);
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nv04_fifo_do_load_context(dev, pfifo->channels - 1);
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nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1);
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nv04_fifo_init_intr(dev);
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pfifo->enable(dev);
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for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
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if (dev_priv->fifos[i]) {
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uint32_t mode = nv_rd32(dev, NV04_PFIFO_MODE);
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nv_wr32(dev, NV04_PFIFO_MODE, mode | (1 << i));
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}
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}
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return 0;
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}
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