diff options
Diffstat (limited to 'shared-core/nv10_fifo.c')
| -rw-r--r-- | shared-core/nv10_fifo.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/shared-core/nv10_fifo.c b/shared-core/nv10_fifo.c new file mode 100644 index 00000000..2d8d5a0d --- /dev/null +++ b/shared-core/nv10_fifo.c @@ -0,0 +1,161 @@ +/* + * 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 RAMFC_WR(offset,val) INSTANCE_WR(chan->ramfc->gpuobj, \ + NV10_RAMFC_##offset/4, (val)) +#define RAMFC_RD(offset) INSTANCE_RD(chan->ramfc->gpuobj, \ + NV10_RAMFC_##offset/4) +#define NV10_RAMFC(c) (dev_priv->ramfc_offset + NV10_RAMFC__SIZE) +#define NV10_RAMFC__SIZE ((dev_priv->chipset) >= 0x17 ? 64 : 32) + +int +nv10_fifo_create_context(drm_device_t *dev, int channel) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + struct nouveau_fifo *chan = dev_priv->fifos[channel]; + int ret; + + if ((ret = nouveau_gpuobj_new_fake(dev, NV10_RAMFC(channel), + NV10_RAMFC__SIZE, + NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, + NULL, &chan->ramfc))) + return ret; + + /* Fill entries that are seen filled in dumps of nvidia driver just + * after channel's is put into DMA mode + */ + 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); + + /* enable the fifo dma operation */ + NV_WRITE(NV04_PFIFO_MODE,NV_READ(NV04_PFIFO_MODE)|(1<<channel)); + return 0; +} + +void +nv10_fifo_destroy_context(drm_device_t *dev, int channel) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + struct nouveau_fifo *chan = dev_priv->fifos[channel]; + + NV_WRITE(NV04_PFIFO_MODE, NV_READ(NV04_PFIFO_MODE)&~(1<<channel)); + + if (chan->ramfc) + nouveau_gpuobj_ref_del(dev, &chan->ramfc); +} + +int +nv10_fifo_load_context(drm_device_t *dev, int channel) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + struct nouveau_fifo *chan = dev_priv->fifos[channel]; + uint32_t tmp; + + NV_WRITE(NV03_PFIFO_CACHE1_PUSH1 , 0x00000100 | channel); + + NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET , RAMFC_RD(DMA_GET)); + NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUT , RAMFC_RD(DMA_PUT)); + NV_WRITE(NV10_PFIFO_CACHE1_REF_CNT , RAMFC_RD(REF_CNT)); + + tmp = RAMFC_RD(DMA_INSTANCE); + NV_WRITE(NV04_PFIFO_CACHE1_DMA_INSTANCE , tmp & 0xFFFF); + NV_WRITE(NV04_PFIFO_CACHE1_DMA_DCOUNT , tmp >> 16); + + NV_WRITE(NV04_PFIFO_CACHE1_DMA_STATE , RAMFC_RD(DMA_STATE)); + NV_WRITE(NV04_PFIFO_CACHE1_DMA_FETCH , RAMFC_RD(DMA_FETCH)); + NV_WRITE(NV04_PFIFO_CACHE1_ENGINE , RAMFC_RD(ENGINE)); + NV_WRITE(NV04_PFIFO_CACHE1_PULL1 , RAMFC_RD(PULL1_ENGINE)); + + if (dev_priv->chipset >= 0x17) { + NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_VALUE, + RAMFC_RD(ACQUIRE_VALUE)); + NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP, + RAMFC_RD(ACQUIRE_TIMESTAMP)); + NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT, + RAMFC_RD(ACQUIRE_TIMEOUT)); + NV_WRITE(NV10_PFIFO_CACHE1_SEMAPHORE, + RAMFC_RD(SEMAPHORE)); + NV_WRITE(NV10_PFIFO_CACHE1_DMA_SUBROUTINE, + RAMFC_RD(DMA_SUBROUTINE)); + } + + /* Reset NV04_PFIFO_CACHE1_DMA_CTL_AT_INFO to INVALID */ + tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_CTL) & ~(1<<31); + NV_WRITE(NV04_PFIFO_CACHE1_DMA_CTL, tmp); + + return 0; +} + +int +nv10_fifo_save_context(drm_device_t *dev, int channel) +{ + drm_nouveau_private_t *dev_priv = dev->dev_private; + struct nouveau_fifo *chan = dev_priv->fifos[channel]; + uint32_t tmp; + + RAMFC_WR(DMA_PUT , NV_READ(NV04_PFIFO_CACHE1_DMA_PUT)); + RAMFC_WR(DMA_GET , NV_READ(NV04_PFIFO_CACHE1_DMA_GET)); + RAMFC_WR(REF_CNT , NV_READ(NV10_PFIFO_CACHE1_REF_CNT)); + + tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_INSTANCE) & 0xFFFF; + tmp |= (NV_READ(NV04_PFIFO_CACHE1_DMA_DCOUNT) << 16); + RAMFC_WR(DMA_INSTANCE , tmp); + + RAMFC_WR(DMA_STATE , NV_READ(NV04_PFIFO_CACHE1_DMA_STATE)); + RAMFC_WR(DMA_FETCH , NV_READ(NV04_PFIFO_CACHE1_DMA_FETCH)); + RAMFC_WR(ENGINE , NV_READ(NV04_PFIFO_CACHE1_ENGINE)); + RAMFC_WR(PULL1_ENGINE , NV_READ(NV04_PFIFO_CACHE1_PULL1)); + + if (dev_priv->chipset >= 0x17) { + RAMFC_WR(ACQUIRE_VALUE, + NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_VALUE)); + RAMFC_WR(ACQUIRE_TIMESTAMP, + NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP)); + RAMFC_WR(ACQUIRE_TIMEOUT, + NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT)); + RAMFC_WR(SEMAPHORE, + NV_READ(NV10_PFIFO_CACHE1_SEMAPHORE)); + RAMFC_WR(DMA_SUBROUTINE, + NV_READ(NV04_PFIFO_CACHE1_DMA_GET)); + } + + return 0; +} + |