diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv04_fifo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv04_fifo.c | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv04_fifo.c b/drivers/gpu/drm/nouveau/nv04_fifo.c new file mode 100644 index 00000000000..0c3cd53c731 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv04_fifo.c @@ -0,0 +1,271 @@ +/* + * 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" + +#define NV04_RAMFC(c) (dev_priv->ramfc_offset + ((c) * NV04_RAMFC__SIZE)) +#define NV04_RAMFC__SIZE 32 +#define NV04_RAMFC_DMA_PUT 0x00 +#define NV04_RAMFC_DMA_GET 0x04 +#define NV04_RAMFC_DMA_INSTANCE 0x08 +#define NV04_RAMFC_DMA_STATE 0x0C +#define NV04_RAMFC_DMA_FETCH 0x10 +#define NV04_RAMFC_ENGINE 0x14 +#define NV04_RAMFC_PULL1_ENGINE 0x18 + +#define RAMFC_WR(offset, val) nv_wo32(dev, chan->ramfc->gpuobj, \ + NV04_RAMFC_##offset/4, (val)) +#define RAMFC_RD(offset) nv_ro32(dev, chan->ramfc->gpuobj, \ + NV04_RAMFC_##offset/4) + +void +nv04_fifo_disable(struct drm_device *dev) +{ + uint32_t tmp; + + tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUSH); + nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUSH, tmp & ~1); + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 0); + tmp = nv_rd32(dev, NV03_PFIFO_CACHE1_PULL1); + nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, tmp & ~1); +} + +void +nv04_fifo_enable(struct drm_device *dev) +{ + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 1); + nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1); +} + +bool +nv04_fifo_reassign(struct drm_device *dev, bool enable) +{ + uint32_t reassign = nv_rd32(dev, NV03_PFIFO_CACHES); + + nv_wr32(dev, NV03_PFIFO_CACHES, enable ? 1 : 0); + return (reassign == 1); +} + +int +nv04_fifo_channel_id(struct drm_device *dev) +{ + return nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH1) & + NV03_PFIFO_CACHE1_PUSH1_CHID_MASK; +} + +int +nv04_fifo_create_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + int ret; + + ret = nouveau_gpuobj_new_fake(dev, NV04_RAMFC(chan->id), ~0, + NV04_RAMFC__SIZE, + NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, + NULL, &chan->ramfc); + if (ret) + return ret; + + /* Setup initial state */ + dev_priv->engine.instmem.prepare_access(dev, true); + RAMFC_WR(DMA_PUT, chan->pushbuf_base); + RAMFC_WR(DMA_GET, chan->pushbuf_base); + RAMFC_WR(DMA_INSTANCE, chan->pushbuf->instance >> 4); + RAMFC_WR(DMA_FETCH, (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)); + dev_priv->engine.instmem.finish_access(dev); + + /* enable the fifo dma operation */ + nv_wr32(dev, NV04_PFIFO_MODE, + nv_rd32(dev, NV04_PFIFO_MODE) | (1 << chan->id)); + return 0; +} + +void +nv04_fifo_destroy_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + + nv_wr32(dev, NV04_PFIFO_MODE, + nv_rd32(dev, NV04_PFIFO_MODE) & ~(1 << chan->id)); + + nouveau_gpuobj_ref_del(dev, &chan->ramfc); +} + +static void +nv04_fifo_do_load_context(struct drm_device *dev, int chid) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t fc = NV04_RAMFC(chid), tmp; + + dev_priv->engine.instmem.prepare_access(dev, false); + + 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)); + tmp = nv_ri32(dev, fc + 8); + 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 + 12)); + nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_FETCH, nv_ri32(dev, fc + 16)); + nv_wr32(dev, NV04_PFIFO_CACHE1_ENGINE, nv_ri32(dev, fc + 20)); + nv_wr32(dev, NV04_PFIFO_CACHE1_PULL1, nv_ri32(dev, fc + 24)); + + dev_priv->engine.instmem.finish_access(dev); + + nv_wr32(dev, NV03_PFIFO_CACHE1_GET, 0); + nv_wr32(dev, NV03_PFIFO_CACHE1_PUT, 0); +} + +int +nv04_fifo_load_context(struct nouveau_channel *chan) +{ + uint32_t tmp; + + nv_wr32(chan->dev, NV03_PFIFO_CACHE1_PUSH1, + NV03_PFIFO_CACHE1_PUSH1_DMA | chan->id); + nv04_fifo_do_load_context(chan->dev, chan->id); + nv_wr32(chan->dev, NV04_PFIFO_CACHE1_DMA_PUSH, 1); + + /* Reset NV04_PFIFO_CACHE1_DMA_CTL_AT_INFO to INVALID */ + tmp = nv_rd32(chan->dev, NV04_PFIFO_CACHE1_DMA_CTL) & ~(1 << 31); + nv_wr32(chan->dev, NV04_PFIFO_CACHE1_DMA_CTL, tmp); + + return 0; +} + +int +nv04_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; + struct nouveau_channel *chan = NULL; + uint32_t tmp; + int chid; + + chid = pfifo->channel_id(dev); + if (chid < 0 || chid >= dev_priv->engine.fifo.channels) + return 0; + + chan = dev_priv->fifos[chid]; + if (!chan) { + NV_ERROR(dev, "Inactive channel on PFIFO: %d\n", chid); + return -EINVAL; + } + + dev_priv->engine.instmem.prepare_access(dev, true); + RAMFC_WR(DMA_PUT, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUT)); + RAMFC_WR(DMA_GET, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_GET)); + tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT) << 16; + tmp |= nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE); + RAMFC_WR(DMA_INSTANCE, tmp); + RAMFC_WR(DMA_STATE, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_STATE)); + RAMFC_WR(DMA_FETCH, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_FETCH)); + RAMFC_WR(ENGINE, nv_rd32(dev, NV04_PFIFO_CACHE1_ENGINE)); + RAMFC_WR(PULL1_ENGINE, nv_rd32(dev, NV04_PFIFO_CACHE1_PULL1)); + dev_priv->engine.instmem.finish_access(dev); + + nv04_fifo_do_load_context(dev, pfifo->channels - 1); + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1); + return 0; +} + +static void +nv04_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, 0x003200, 0x00000000); + nv_wr32(dev, 0x003250, 0x00000000); + nv_wr32(dev, 0x003220, 0x00000000); + + nv_wr32(dev, 0x003250, 0x00000000); + nv_wr32(dev, 0x003270, 0x00000000); + nv_wr32(dev, 0x003210, 0x00000000); +} + +static void +nv04_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_offset >> 8)); + nv_wr32(dev, NV03_PFIFO_RAMRO, dev_priv->ramro_offset>>8); + nv_wr32(dev, NV03_PFIFO_RAMFC, dev_priv->ramfc_offset >> 8); +} + +static void +nv04_fifo_init_intr(struct drm_device *dev) +{ + nv_wr32(dev, 0x002100, 0xffffffff); + nv_wr32(dev, 0x002140, 0xffffffff); +} + +int +nv04_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; + + nv04_fifo_init_reset(dev); + nv04_fifo_init_ramxx(dev); + + nv04_fifo_do_load_context(dev, pfifo->channels - 1); + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1); + + nv04_fifo_init_intr(dev); + pfifo->enable(dev); + + for (i = 0; i < dev_priv->engine.fifo.channels; i++) { + if (dev_priv->fifos[i]) { + uint32_t mode = nv_rd32(dev, NV04_PFIFO_MODE); + nv_wr32(dev, NV04_PFIFO_MODE, mode | (1 << i)); + } + } + + return 0; +} + |