diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv40_fifo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv40_fifo.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv40_fifo.c b/drivers/gpu/drm/nouveau/nv40_fifo.c new file mode 100644 index 000000000000..b4f19ccb8b41 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv40_fifo.c @@ -0,0 +1,314 @@ +/* + * 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 "nouveau_drv.h" +#include "nouveau_drm.h" + +#define NV40_RAMFC(c) (dev_priv->ramfc_offset + ((c) * NV40_RAMFC__SIZE)) +#define NV40_RAMFC__SIZE 128 + +int +nv40_fifo_create_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t fc = NV40_RAMFC(chan->id); + int ret; + + ret = nouveau_gpuobj_new_fake(dev, NV40_RAMFC(chan->id), ~0, + NV40_RAMFC__SIZE, NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, NULL, &chan->ramfc); + if (ret) + return ret; + + dev_priv->engine.instmem.prepare_access(dev, true); + nv_wi32(dev, fc + 0, chan->pushbuf_base); + nv_wi32(dev, fc + 4, chan->pushbuf_base); + nv_wi32(dev, fc + 12, chan->pushbuf->instance >> 4); + nv_wi32(dev, fc + 24, 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 + 0x30000000 /* no idea.. */); + nv_wi32(dev, fc + 56, chan->ramin_grctx->instance >> 4); + nv_wi32(dev, fc + 60, 0x0001FFFF); + 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 +nv40_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)); + + if (chan->ramfc) + nouveau_gpuobj_ref_del(dev, &chan->ramfc); +} + +static void +nv40_fifo_do_load_context(struct drm_device *dev, int chid) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t fc = NV40_RAMFC(chid), tmp, tmp2; + + 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)); + nv_wr32(dev, NV10_PFIFO_CACHE1_REF_CNT, nv_ri32(dev, fc + 8)); + nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE, nv_ri32(dev, fc + 12)); + nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT, nv_ri32(dev, fc + 16)); + nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_STATE, nv_ri32(dev, fc + 20)); + + /* No idea what 0x2058 is.. */ + tmp = nv_ri32(dev, fc + 24); + tmp2 = nv_rd32(dev, 0x2058) & 0xFFF; + tmp2 |= (tmp & 0x30000000); + nv_wr32(dev, 0x2058, tmp2); + tmp &= ~0x30000000; + nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_FETCH, tmp); + + nv_wr32(dev, NV04_PFIFO_CACHE1_ENGINE, nv_ri32(dev, fc + 28)); + nv_wr32(dev, NV04_PFIFO_CACHE1_PULL1, nv_ri32(dev, fc + 32)); + nv_wr32(dev, NV10_PFIFO_CACHE1_ACQUIRE_VALUE, nv_ri32(dev, fc + 36)); + tmp = nv_ri32(dev, fc + 40); + nv_wr32(dev, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP, tmp); + nv_wr32(dev, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT, nv_ri32(dev, fc + 44)); + nv_wr32(dev, NV10_PFIFO_CACHE1_SEMAPHORE, nv_ri32(dev, fc + 48)); + nv_wr32(dev, NV10_PFIFO_CACHE1_DMA_SUBROUTINE, nv_ri32(dev, fc + 52)); + nv_wr32(dev, NV40_PFIFO_GRCTX_INSTANCE, nv_ri32(dev, fc + 56)); + + /* Don't clobber the TIMEOUT_ENABLED flag when restoring from RAMFC */ + tmp = nv_rd32(dev, NV04_PFIFO_DMA_TIMESLICE) & ~0x1FFFF; + tmp |= nv_ri32(dev, fc + 60) & 0x1FFFF; + nv_wr32(dev, NV04_PFIFO_DMA_TIMESLICE, tmp); + + nv_wr32(dev, 0x32e4, nv_ri32(dev, fc + 64)); + /* NVIDIA does this next line twice... */ + nv_wr32(dev, 0x32e8, nv_ri32(dev, fc + 68)); + nv_wr32(dev, 0x2088, nv_ri32(dev, fc + 76)); + nv_wr32(dev, 0x3300, nv_ri32(dev, fc + 80)); + + dev_priv->engine.instmem.finish_access(dev); + + nv_wr32(dev, NV03_PFIFO_CACHE1_GET, 0); + nv_wr32(dev, NV03_PFIFO_CACHE1_PUT, 0); +} + +int +nv40_fifo_load_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + uint32_t tmp; + + nv40_fifo_do_load_context(dev, chan->id); + + /* Set channel active, and in DMA mode */ + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, + NV40_PFIFO_CACHE1_PUSH1_DMA | chan->id); + nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUSH, 1); + + /* Reset DMA_CTL_AT_INFO to INVALID */ + tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_CTL) & ~(1 << 31); + nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_CTL, tmp); + + return 0; +} + +int +nv40_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; + uint32_t fc, tmp; + int chid; + + chid = pfifo->channel_id(dev); + if (chid < 0 || chid >= dev_priv->engine.fifo.channels) + return 0; + fc = NV40_RAMFC(chid); + + dev_priv->engine.instmem.prepare_access(dev, true); + nv_wi32(dev, fc + 0, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUT)); + nv_wi32(dev, fc + 4, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_GET)); + nv_wi32(dev, fc + 8, nv_rd32(dev, NV10_PFIFO_CACHE1_REF_CNT)); + nv_wi32(dev, fc + 12, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE)); + nv_wi32(dev, fc + 16, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT)); + nv_wi32(dev, fc + 20, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_STATE)); + tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_FETCH); + tmp |= nv_rd32(dev, 0x2058) & 0x30000000; + nv_wi32(dev, fc + 24, tmp); + nv_wi32(dev, fc + 28, nv_rd32(dev, NV04_PFIFO_CACHE1_ENGINE)); + nv_wi32(dev, fc + 32, nv_rd32(dev, NV04_PFIFO_CACHE1_PULL1)); + nv_wi32(dev, fc + 36, nv_rd32(dev, NV10_PFIFO_CACHE1_ACQUIRE_VALUE)); + tmp = nv_rd32(dev, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP); + nv_wi32(dev, fc + 40, tmp); + nv_wi32(dev, fc + 44, nv_rd32(dev, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT)); + nv_wi32(dev, fc + 48, nv_rd32(dev, NV10_PFIFO_CACHE1_SEMAPHORE)); + /* NVIDIA read 0x3228 first, then write DMA_GET here.. maybe something + * more involved depending on the value of 0x3228? + */ + nv_wi32(dev, fc + 52, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_GET)); + nv_wi32(dev, fc + 56, nv_rd32(dev, NV40_PFIFO_GRCTX_INSTANCE)); + nv_wi32(dev, fc + 60, nv_rd32(dev, NV04_PFIFO_DMA_TIMESLICE) & 0x1ffff); + /* No idea what the below is for exactly, ripped from a mmio-trace */ + nv_wi32(dev, fc + 64, nv_rd32(dev, NV40_PFIFO_UNK32E4)); + /* NVIDIA do this next line twice.. bug? */ + nv_wi32(dev, fc + 68, nv_rd32(dev, 0x32e8)); + nv_wi32(dev, fc + 76, nv_rd32(dev, 0x2088)); + nv_wi32(dev, fc + 80, nv_rd32(dev, 0x3300)); +#if 0 /* no real idea which is PUT/GET in UNK_48.. */ + tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_GET); + tmp |= (nv_rd32(dev, NV04_PFIFO_CACHE1_PUT) << 16); + nv_wi32(dev, fc + 72, tmp); +#endif + dev_priv->engine.instmem.finish_access(dev); + + nv40_fifo_do_load_context(dev, pfifo->channels - 1); + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, + NV40_PFIFO_CACHE1_PUSH1_DMA | (pfifo->channels - 1)); + return 0; +} + +static void +nv40_fifo_init_reset(struct drm_device *dev) +{ + int i; + + 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, 0x003210, 0x00000000); + nv_wr32(dev, 0x003270, 0x00000000); + nv_wr32(dev, 0x003240, 0x00000000); + nv_wr32(dev, 0x003244, 0x00000000); + nv_wr32(dev, 0x003258, 0x00000000); + nv_wr32(dev, 0x002504, 0x00000000); + for (i = 0; i < 16; i++) + nv_wr32(dev, 0x002510 + (i * 4), 0x00000000); + nv_wr32(dev, 0x00250c, 0x0000ffff); + nv_wr32(dev, 0x002048, 0x00000000); + nv_wr32(dev, 0x003228, 0x00000000); + nv_wr32(dev, 0x0032e8, 0x00000000); + nv_wr32(dev, 0x002410, 0x00000000); + nv_wr32(dev, 0x002420, 0x00000000); + nv_wr32(dev, 0x002058, 0x00000001); + nv_wr32(dev, 0x00221c, 0x00000000); + /* something with 0x2084, read/modify/write, no change */ + nv_wr32(dev, 0x002040, 0x000000ff); + nv_wr32(dev, 0x002500, 0x00000000); + nv_wr32(dev, 0x003200, 0x00000000); + + nv_wr32(dev, NV04_PFIFO_DMA_TIMESLICE, 0x2101ffff); +} + +static void +nv40_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); + + switch (dev_priv->chipset) { + case 0x47: + case 0x49: + case 0x4b: + nv_wr32(dev, 0x2230, 1); + break; + default: + break; + } + + switch (dev_priv->chipset) { + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x45: + case 0x47: + case 0x48: + case 0x49: + case 0x4b: + nv_wr32(dev, NV40_PFIFO_RAMFC, 0x30002); + break; + default: + nv_wr32(dev, 0x2230, 0); + nv_wr32(dev, NV40_PFIFO_RAMFC, + ((nouveau_mem_fb_amount(dev) - 512 * 1024 + + dev_priv->ramfc_offset) >> 16) | (3 << 16)); + break; + } +} + +static void +nv40_fifo_init_intr(struct drm_device *dev) +{ + nv_wr32(dev, 0x002100, 0xffffffff); + nv_wr32(dev, 0x002140, 0xffffffff); +} + +int +nv40_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; + + nv40_fifo_init_reset(dev); + nv40_fifo_init_ramxx(dev); + + nv40_fifo_do_load_context(dev, pfifo->channels - 1); + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1); + + nv40_fifo_init_intr(dev); + pfifo->enable(dev); + pfifo->reassign(dev, true); + + 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; +} |