| /* |
| * 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, \ |
| NV04_RAMFC_##offset/4, (val)) |
| #define RAMFC_RD(offset) INSTANCE_RD(chan->ramfc->gpuobj, \ |
| NV04_RAMFC_##offset/4) |
| #define NV04_RAMFC(c) (dev_priv->ramfc_offset + ((c) * NV04_RAMFC__SIZE)) |
| #define NV04_RAMFC__SIZE 32 |
| |
| int |
| nv04_fifo_channel_id(struct drm_device *dev) |
| { |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| |
| return (NV_READ(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; |
| |
| if ((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))) |
| return ret; |
| |
| /* Setup initial state */ |
| 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<<chan->id)); |
| return 0; |
| } |
| |
| void |
| nv04_fifo_destroy_context(struct nouveau_channel *chan) |
| { |
| struct drm_device *dev = chan->dev; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| |
| NV_WRITE(NV04_PFIFO_MODE, NV_READ(NV04_PFIFO_MODE)&~(1<<chan->id)); |
| |
| nouveau_gpuobj_ref_del(dev, &chan->ramfc); |
| } |
| |
| int |
| nv04_fifo_load_context(struct nouveau_channel *chan) |
| { |
| struct drm_device *dev = chan->dev; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| uint32_t tmp; |
| |
| NV_WRITE(NV03_PFIFO_CACHE1_PUSH1, |
| NV03_PFIFO_CACHE1_PUSH1_DMA | chan->id); |
| |
| NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET, RAMFC_RD(DMA_GET)); |
| NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUT, RAMFC_RD(DMA_PUT)); |
| |
| 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)); |
| |
| /* 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 |
| nv04_fifo_save_context(struct nouveau_channel *chan) |
| { |
| struct drm_device *dev = chan->dev; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| uint32_t tmp; |
| |
| RAMFC_WR(DMA_PUT, NV04_PFIFO_CACHE1_DMA_PUT); |
| RAMFC_WR(DMA_GET, NV04_PFIFO_CACHE1_DMA_GET); |
| |
| tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_DCOUNT) << 16; |
| tmp |= NV_READ(NV04_PFIFO_CACHE1_DMA_INSTANCE); |
| 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)); |
| |
| return 0; |
| } |