diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_fifo.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nv50_fifo.c | 506 |
1 files changed, 506 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_fifo.c b/drivers/gpu/drm/nouveau/nv50_fifo.c new file mode 100644 index 00000000..3bc2a565 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv50_fifo.c @@ -0,0 +1,506 @@ +/* + * 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" +#include "nouveau_ramht.h" +#include "nouveau_vm.h" + +static void +nv50_fifo_playlist_update(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; + struct nouveau_gpuobj *cur; + int i, nr; + + NV_DEBUG(dev, "\n"); + + cur = pfifo->playlist[pfifo->cur_playlist]; + pfifo->cur_playlist = !pfifo->cur_playlist; + + /* We never schedule channel 0 or 127 */ + for (i = 1, nr = 0; i < 127; i++) { + if (dev_priv->channels.ptr[i] && + dev_priv->channels.ptr[i]->ramfc) { + nv_wo32(cur, (nr * 4), i); + nr++; + } + } + dev_priv->engine.instmem.flush(dev); + + nv_wr32(dev, 0x32f4, cur->vinst >> 12); + nv_wr32(dev, 0x32ec, nr); + nv_wr32(dev, 0x2500, 0x101); +} + +static void +nv50_fifo_channel_enable(struct drm_device *dev, int channel) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_channel *chan = dev_priv->channels.ptr[channel]; + uint32_t inst; + + NV_DEBUG(dev, "ch%d\n", channel); + + if (dev_priv->chipset == 0x50) + inst = chan->ramfc->vinst >> 12; + else + inst = chan->ramfc->vinst >> 8; + + nv_wr32(dev, NV50_PFIFO_CTX_TABLE(channel), inst | + NV50_PFIFO_CTX_TABLE_CHANNEL_ENABLED); +} + +static void +nv50_fifo_channel_disable(struct drm_device *dev, int channel) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t inst; + + NV_DEBUG(dev, "ch%d\n", channel); + + if (dev_priv->chipset == 0x50) + inst = NV50_PFIFO_CTX_TABLE_INSTANCE_MASK_G80; + else + inst = NV50_PFIFO_CTX_TABLE_INSTANCE_MASK_G84; + nv_wr32(dev, NV50_PFIFO_CTX_TABLE(channel), inst); +} + +static void +nv50_fifo_init_reset(struct drm_device *dev) +{ + uint32_t pmc_e = NV_PMC_ENABLE_PFIFO; + + NV_DEBUG(dev, "\n"); + + nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) & ~pmc_e); + nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) | pmc_e); +} + +static void +nv50_fifo_init_intr(struct drm_device *dev) +{ + NV_DEBUG(dev, "\n"); + + nouveau_irq_register(dev, 8, nv04_fifo_isr); + nv_wr32(dev, NV03_PFIFO_INTR_0, 0xFFFFFFFF); + nv_wr32(dev, NV03_PFIFO_INTR_EN_0, 0xFFFFFFFF); +} + +static void +nv50_fifo_init_context_table(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + int i; + + NV_DEBUG(dev, "\n"); + + for (i = 0; i < NV50_PFIFO_CTX_TABLE__SIZE; i++) { + if (dev_priv->channels.ptr[i]) + nv50_fifo_channel_enable(dev, i); + else + nv50_fifo_channel_disable(dev, i); + } + + nv50_fifo_playlist_update(dev); +} + +static void +nv50_fifo_init_regs__nv(struct drm_device *dev) +{ + NV_DEBUG(dev, "\n"); + + nv_wr32(dev, 0x250c, 0x6f3cfc34); +} + +static void +nv50_fifo_init_regs(struct drm_device *dev) +{ + NV_DEBUG(dev, "\n"); + + nv_wr32(dev, 0x2500, 0); + nv_wr32(dev, 0x3250, 0); + nv_wr32(dev, 0x3220, 0); + nv_wr32(dev, 0x3204, 0); + nv_wr32(dev, 0x3210, 0); + nv_wr32(dev, 0x3270, 0); + nv_wr32(dev, 0x2044, 0x01003fff); + + /* Enable dummy channels setup by nv50_instmem.c */ + nv50_fifo_channel_enable(dev, 0); + nv50_fifo_channel_enable(dev, 127); +} + +int +nv50_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 ret; + + NV_DEBUG(dev, "\n"); + + if (pfifo->playlist[0]) { + pfifo->cur_playlist = !pfifo->cur_playlist; + goto just_reset; + } + + ret = nouveau_gpuobj_new(dev, NULL, 128*4, 0x1000, + NVOBJ_FLAG_ZERO_ALLOC, + &pfifo->playlist[0]); + if (ret) { + NV_ERROR(dev, "error creating playlist 0: %d\n", ret); + return ret; + } + + ret = nouveau_gpuobj_new(dev, NULL, 128*4, 0x1000, + NVOBJ_FLAG_ZERO_ALLOC, + &pfifo->playlist[1]); + if (ret) { + nouveau_gpuobj_ref(NULL, &pfifo->playlist[0]); + NV_ERROR(dev, "error creating playlist 1: %d\n", ret); + return ret; + } + +just_reset: + nv50_fifo_init_reset(dev); + nv50_fifo_init_intr(dev); + nv50_fifo_init_context_table(dev); + nv50_fifo_init_regs__nv(dev); + nv50_fifo_init_regs(dev); + dev_priv->engine.fifo.enable(dev); + dev_priv->engine.fifo.reassign(dev, true); + + return 0; +} + +void +nv50_fifo_takedown(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; + + NV_DEBUG(dev, "\n"); + + if (!pfifo->playlist[0]) + return; + + nv_wr32(dev, 0x2140, 0x00000000); + nouveau_irq_unregister(dev, 8); + + nouveau_gpuobj_ref(NULL, &pfifo->playlist[0]); + nouveau_gpuobj_ref(NULL, &pfifo->playlist[1]); +} + +int +nv50_fifo_channel_id(struct drm_device *dev) +{ + return nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH1) & + NV50_PFIFO_CACHE1_PUSH1_CHID_MASK; +} + +int +nv50_fifo_create_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *ramfc = NULL; + uint64_t ib_offset = chan->pushbuf_base + chan->dma.ib_base * 4; + unsigned long flags; + int ret; + + NV_DEBUG(dev, "ch%d\n", chan->id); + + if (dev_priv->chipset == 0x50) { + ret = nouveau_gpuobj_new_fake(dev, chan->ramin->pinst, + chan->ramin->vinst, 0x100, + NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, + &chan->ramfc); + if (ret) + return ret; + + ret = nouveau_gpuobj_new_fake(dev, chan->ramin->pinst + 0x0400, + chan->ramin->vinst + 0x0400, + 4096, 0, &chan->cache); + if (ret) + return ret; + } else { + ret = nouveau_gpuobj_new(dev, chan, 0x100, 256, + NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, &chan->ramfc); + if (ret) + return ret; + + ret = nouveau_gpuobj_new(dev, chan, 4096, 1024, + 0, &chan->cache); + if (ret) + return ret; + } + ramfc = chan->ramfc; + + chan->user = ioremap(pci_resource_start(dev->pdev, 0) + + NV50_USER(chan->id), PAGE_SIZE); + if (!chan->user) + return -ENOMEM; + + spin_lock_irqsave(&dev_priv->context_switch_lock, flags); + + nv_wo32(ramfc, 0x48, chan->pushbuf->cinst >> 4); + nv_wo32(ramfc, 0x80, ((chan->ramht->bits - 9) << 27) | + (4 << 24) /* SEARCH_FULL */ | + (chan->ramht->gpuobj->cinst >> 4)); + nv_wo32(ramfc, 0x44, 0x01003fff); + nv_wo32(ramfc, 0x60, 0x7fffffff); + nv_wo32(ramfc, 0x40, 0x00000000); + nv_wo32(ramfc, 0x7c, 0x30000001); + nv_wo32(ramfc, 0x78, 0x00000000); + nv_wo32(ramfc, 0x3c, 0x403f6078); + nv_wo32(ramfc, 0x50, lower_32_bits(ib_offset)); + nv_wo32(ramfc, 0x54, upper_32_bits(ib_offset) | + drm_order(chan->dma.ib_max + 1) << 16); + + if (dev_priv->chipset != 0x50) { + nv_wo32(chan->ramin, 0, chan->id); + nv_wo32(chan->ramin, 4, chan->ramfc->vinst >> 8); + + nv_wo32(ramfc, 0x88, chan->cache->vinst >> 10); + nv_wo32(ramfc, 0x98, chan->ramin->vinst >> 12); + } + + dev_priv->engine.instmem.flush(dev); + + nv50_fifo_channel_enable(dev, chan->id); + nv50_fifo_playlist_update(dev); + spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); + return 0; +} + +void +nv50_fifo_destroy_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; + struct nouveau_gpuobj *ramfc = NULL; + unsigned long flags; + + NV_DEBUG(dev, "ch%d\n", chan->id); + + spin_lock_irqsave(&dev_priv->context_switch_lock, flags); + pfifo->reassign(dev, false); + + /* Unload the context if it's the currently active one */ + if (pfifo->channel_id(dev) == chan->id) { + pfifo->disable(dev); + pfifo->unload_context(dev); + pfifo->enable(dev); + } + + /* This will ensure the channel is seen as disabled. */ + nouveau_gpuobj_ref(chan->ramfc, &ramfc); + nouveau_gpuobj_ref(NULL, &chan->ramfc); + nv50_fifo_channel_disable(dev, chan->id); + + /* Dummy channel, also used on ch 127 */ + if (chan->id == 0) + nv50_fifo_channel_disable(dev, 127); + nv50_fifo_playlist_update(dev); + + pfifo->reassign(dev, true); + spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); + + /* Free the channel resources */ + if (chan->user) { + iounmap(chan->user); + chan->user = NULL; + } + nouveau_gpuobj_ref(NULL, &ramfc); + nouveau_gpuobj_ref(NULL, &chan->cache); +} + +int +nv50_fifo_load_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *ramfc = chan->ramfc; + struct nouveau_gpuobj *cache = chan->cache; + int ptr, cnt; + + NV_DEBUG(dev, "ch%d\n", chan->id); + + nv_wr32(dev, 0x3330, nv_ro32(ramfc, 0x00)); + nv_wr32(dev, 0x3334, nv_ro32(ramfc, 0x04)); + nv_wr32(dev, 0x3240, nv_ro32(ramfc, 0x08)); + nv_wr32(dev, 0x3320, nv_ro32(ramfc, 0x0c)); + nv_wr32(dev, 0x3244, nv_ro32(ramfc, 0x10)); + nv_wr32(dev, 0x3328, nv_ro32(ramfc, 0x14)); + nv_wr32(dev, 0x3368, nv_ro32(ramfc, 0x18)); + nv_wr32(dev, 0x336c, nv_ro32(ramfc, 0x1c)); + nv_wr32(dev, 0x3370, nv_ro32(ramfc, 0x20)); + nv_wr32(dev, 0x3374, nv_ro32(ramfc, 0x24)); + nv_wr32(dev, 0x3378, nv_ro32(ramfc, 0x28)); + nv_wr32(dev, 0x337c, nv_ro32(ramfc, 0x2c)); + nv_wr32(dev, 0x3228, nv_ro32(ramfc, 0x30)); + nv_wr32(dev, 0x3364, nv_ro32(ramfc, 0x34)); + nv_wr32(dev, 0x32a0, nv_ro32(ramfc, 0x38)); + nv_wr32(dev, 0x3224, nv_ro32(ramfc, 0x3c)); + nv_wr32(dev, 0x324c, nv_ro32(ramfc, 0x40)); + nv_wr32(dev, 0x2044, nv_ro32(ramfc, 0x44)); + nv_wr32(dev, 0x322c, nv_ro32(ramfc, 0x48)); + nv_wr32(dev, 0x3234, nv_ro32(ramfc, 0x4c)); + nv_wr32(dev, 0x3340, nv_ro32(ramfc, 0x50)); + nv_wr32(dev, 0x3344, nv_ro32(ramfc, 0x54)); + nv_wr32(dev, 0x3280, nv_ro32(ramfc, 0x58)); + nv_wr32(dev, 0x3254, nv_ro32(ramfc, 0x5c)); + nv_wr32(dev, 0x3260, nv_ro32(ramfc, 0x60)); + nv_wr32(dev, 0x3264, nv_ro32(ramfc, 0x64)); + nv_wr32(dev, 0x3268, nv_ro32(ramfc, 0x68)); + nv_wr32(dev, 0x326c, nv_ro32(ramfc, 0x6c)); + nv_wr32(dev, 0x32e4, nv_ro32(ramfc, 0x70)); + nv_wr32(dev, 0x3248, nv_ro32(ramfc, 0x74)); + nv_wr32(dev, 0x2088, nv_ro32(ramfc, 0x78)); + nv_wr32(dev, 0x2058, nv_ro32(ramfc, 0x7c)); + nv_wr32(dev, 0x2210, nv_ro32(ramfc, 0x80)); + + cnt = nv_ro32(ramfc, 0x84); + for (ptr = 0; ptr < cnt; ptr++) { + nv_wr32(dev, NV40_PFIFO_CACHE1_METHOD(ptr), + nv_ro32(cache, (ptr * 8) + 0)); + nv_wr32(dev, NV40_PFIFO_CACHE1_DATA(ptr), + nv_ro32(cache, (ptr * 8) + 4)); + } + nv_wr32(dev, NV03_PFIFO_CACHE1_PUT, cnt << 2); + nv_wr32(dev, NV03_PFIFO_CACHE1_GET, 0); + + /* guessing that all the 0x34xx regs aren't on NV50 */ + if (dev_priv->chipset != 0x50) { + nv_wr32(dev, 0x340c, nv_ro32(ramfc, 0x88)); + nv_wr32(dev, 0x3400, nv_ro32(ramfc, 0x8c)); + nv_wr32(dev, 0x3404, nv_ro32(ramfc, 0x90)); + nv_wr32(dev, 0x3408, nv_ro32(ramfc, 0x94)); + nv_wr32(dev, 0x3410, nv_ro32(ramfc, 0x98)); + } + + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, chan->id | (1<<16)); + return 0; +} + +int +nv50_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_gpuobj *ramfc, *cache; + struct nouveau_channel *chan = NULL; + int chid, get, put, ptr; + + NV_DEBUG(dev, "\n"); + + chid = pfifo->channel_id(dev); + if (chid < 1 || chid >= dev_priv->engine.fifo.channels - 1) + return 0; + + chan = dev_priv->channels.ptr[chid]; + if (!chan) { + NV_ERROR(dev, "Inactive channel on PFIFO: %d\n", chid); + return -EINVAL; + } + NV_DEBUG(dev, "ch%d\n", chan->id); + ramfc = chan->ramfc; + cache = chan->cache; + + nv_wo32(ramfc, 0x00, nv_rd32(dev, 0x3330)); + nv_wo32(ramfc, 0x04, nv_rd32(dev, 0x3334)); + nv_wo32(ramfc, 0x08, nv_rd32(dev, 0x3240)); + nv_wo32(ramfc, 0x0c, nv_rd32(dev, 0x3320)); + nv_wo32(ramfc, 0x10, nv_rd32(dev, 0x3244)); + nv_wo32(ramfc, 0x14, nv_rd32(dev, 0x3328)); + nv_wo32(ramfc, 0x18, nv_rd32(dev, 0x3368)); + nv_wo32(ramfc, 0x1c, nv_rd32(dev, 0x336c)); + nv_wo32(ramfc, 0x20, nv_rd32(dev, 0x3370)); + nv_wo32(ramfc, 0x24, nv_rd32(dev, 0x3374)); + nv_wo32(ramfc, 0x28, nv_rd32(dev, 0x3378)); + nv_wo32(ramfc, 0x2c, nv_rd32(dev, 0x337c)); + nv_wo32(ramfc, 0x30, nv_rd32(dev, 0x3228)); + nv_wo32(ramfc, 0x34, nv_rd32(dev, 0x3364)); + nv_wo32(ramfc, 0x38, nv_rd32(dev, 0x32a0)); + nv_wo32(ramfc, 0x3c, nv_rd32(dev, 0x3224)); + nv_wo32(ramfc, 0x40, nv_rd32(dev, 0x324c)); + nv_wo32(ramfc, 0x44, nv_rd32(dev, 0x2044)); + nv_wo32(ramfc, 0x48, nv_rd32(dev, 0x322c)); + nv_wo32(ramfc, 0x4c, nv_rd32(dev, 0x3234)); + nv_wo32(ramfc, 0x50, nv_rd32(dev, 0x3340)); + nv_wo32(ramfc, 0x54, nv_rd32(dev, 0x3344)); + nv_wo32(ramfc, 0x58, nv_rd32(dev, 0x3280)); + nv_wo32(ramfc, 0x5c, nv_rd32(dev, 0x3254)); + nv_wo32(ramfc, 0x60, nv_rd32(dev, 0x3260)); + nv_wo32(ramfc, 0x64, nv_rd32(dev, 0x3264)); + nv_wo32(ramfc, 0x68, nv_rd32(dev, 0x3268)); + nv_wo32(ramfc, 0x6c, nv_rd32(dev, 0x326c)); + nv_wo32(ramfc, 0x70, nv_rd32(dev, 0x32e4)); + nv_wo32(ramfc, 0x74, nv_rd32(dev, 0x3248)); + nv_wo32(ramfc, 0x78, nv_rd32(dev, 0x2088)); + nv_wo32(ramfc, 0x7c, nv_rd32(dev, 0x2058)); + nv_wo32(ramfc, 0x80, nv_rd32(dev, 0x2210)); + + put = (nv_rd32(dev, NV03_PFIFO_CACHE1_PUT) & 0x7ff) >> 2; + get = (nv_rd32(dev, NV03_PFIFO_CACHE1_GET) & 0x7ff) >> 2; + ptr = 0; + while (put != get) { + nv_wo32(cache, ptr + 0, + nv_rd32(dev, NV40_PFIFO_CACHE1_METHOD(get))); + nv_wo32(cache, ptr + 4, + nv_rd32(dev, NV40_PFIFO_CACHE1_DATA(get))); + get = (get + 1) & 0x1ff; + ptr += 8; + } + + /* guessing that all the 0x34xx regs aren't on NV50 */ + if (dev_priv->chipset != 0x50) { + nv_wo32(ramfc, 0x84, ptr >> 3); + nv_wo32(ramfc, 0x88, nv_rd32(dev, 0x340c)); + nv_wo32(ramfc, 0x8c, nv_rd32(dev, 0x3400)); + nv_wo32(ramfc, 0x90, nv_rd32(dev, 0x3404)); + nv_wo32(ramfc, 0x94, nv_rd32(dev, 0x3408)); + nv_wo32(ramfc, 0x98, nv_rd32(dev, 0x3410)); + } + + dev_priv->engine.instmem.flush(dev); + + /*XXX: probably reload ch127 (NULL) state back too */ + nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, 127); + return 0; +} + +void +nv50_fifo_tlb_flush(struct drm_device *dev) +{ + nv50_vm_flush_engine(dev, 5); +} |