diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvc0_fifo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvc0_fifo.c | 536 |
1 files changed, 536 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c new file mode 100644 index 00000000..50d68a7a --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c @@ -0,0 +1,536 @@ +/* + * Copyright 2010 Red Hat Inc. + * + * 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 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 HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: Ben Skeggs + */ + +#include "drmP.h" + +#include "nouveau_drv.h" +#include "nouveau_mm.h" + +static void nvc0_fifo_isr(struct drm_device *); + +struct nvc0_fifo_priv { + struct nouveau_gpuobj *playlist[2]; + int cur_playlist; + struct nouveau_vma user_vma; + int spoon_nr; +}; + +struct nvc0_fifo_chan { + struct nouveau_gpuobj *user; + struct nouveau_gpuobj *ramfc; +}; + +static void +nvc0_fifo_playlist_update(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem; + struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; + struct nvc0_fifo_priv *priv = pfifo->priv; + struct nouveau_gpuobj *cur; + int i, p; + + cur = priv->playlist[priv->cur_playlist]; + priv->cur_playlist = !priv->cur_playlist; + + for (i = 0, p = 0; i < 128; i++) { + if (!(nv_rd32(dev, 0x3004 + (i * 8)) & 1)) + continue; + nv_wo32(cur, p + 0, i); + nv_wo32(cur, p + 4, 0x00000004); + p += 8; + } + pinstmem->flush(dev); + + nv_wr32(dev, 0x002270, cur->vinst >> 12); + nv_wr32(dev, 0x002274, 0x01f00000 | (p >> 3)); + if (!nv_wait(dev, 0x00227c, 0x00100000, 0x00000000)) + NV_ERROR(dev, "PFIFO - playlist update failed\n"); +} + +void +nvc0_fifo_disable(struct drm_device *dev) +{ +} + +void +nvc0_fifo_enable(struct drm_device *dev) +{ +} + +bool +nvc0_fifo_reassign(struct drm_device *dev, bool enable) +{ + return false; +} + +bool +nvc0_fifo_cache_pull(struct drm_device *dev, bool enable) +{ + return false; +} + +int +nvc0_fifo_channel_id(struct drm_device *dev) +{ + return 127; +} + +int +nvc0_fifo_create_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem; + struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; + struct nvc0_fifo_priv *priv = pfifo->priv; + struct nvc0_fifo_chan *fifoch; + u64 ib_virt = chan->pushbuf_base + chan->dma.ib_base * 4; + int ret; + + chan->fifo_priv = kzalloc(sizeof(*fifoch), GFP_KERNEL); + if (!chan->fifo_priv) + return -ENOMEM; + fifoch = chan->fifo_priv; + + /* allocate vram for control regs, map into polling area */ + ret = nouveau_gpuobj_new(dev, NULL, 0x1000, 0x1000, + NVOBJ_FLAG_ZERO_ALLOC, &fifoch->user); + if (ret) + goto error; + + nouveau_vm_map_at(&priv->user_vma, chan->id * 0x1000, + *(struct nouveau_mem **)fifoch->user->node); + + chan->user = ioremap_wc(pci_resource_start(dev->pdev, 1) + + priv->user_vma.offset + (chan->id * 0x1000), + PAGE_SIZE); + if (!chan->user) { + ret = -ENOMEM; + goto error; + } + + /* ramfc */ + ret = nouveau_gpuobj_new_fake(dev, chan->ramin->pinst, + chan->ramin->vinst, 0x100, + NVOBJ_FLAG_ZERO_ALLOC, &fifoch->ramfc); + if (ret) + goto error; + + nv_wo32(fifoch->ramfc, 0x08, lower_32_bits(fifoch->user->vinst)); + nv_wo32(fifoch->ramfc, 0x0c, upper_32_bits(fifoch->user->vinst)); + nv_wo32(fifoch->ramfc, 0x10, 0x0000face); + nv_wo32(fifoch->ramfc, 0x30, 0xfffff902); + nv_wo32(fifoch->ramfc, 0x48, lower_32_bits(ib_virt)); + nv_wo32(fifoch->ramfc, 0x4c, drm_order(chan->dma.ib_max + 1) << 16 | + upper_32_bits(ib_virt)); + nv_wo32(fifoch->ramfc, 0x54, 0x00000002); + nv_wo32(fifoch->ramfc, 0x84, 0x20400000); + nv_wo32(fifoch->ramfc, 0x94, 0x30000001); + nv_wo32(fifoch->ramfc, 0x9c, 0x00000100); + nv_wo32(fifoch->ramfc, 0xa4, 0x1f1f1f1f); + nv_wo32(fifoch->ramfc, 0xa8, 0x1f1f1f1f); + nv_wo32(fifoch->ramfc, 0xac, 0x0000001f); + nv_wo32(fifoch->ramfc, 0xb8, 0xf8000000); + nv_wo32(fifoch->ramfc, 0xf8, 0x10003080); /* 0x002310 */ + nv_wo32(fifoch->ramfc, 0xfc, 0x10000010); /* 0x002350 */ + pinstmem->flush(dev); + + nv_wr32(dev, 0x003000 + (chan->id * 8), 0xc0000000 | + (chan->ramin->vinst >> 12)); + nv_wr32(dev, 0x003004 + (chan->id * 8), 0x001f0001); + nvc0_fifo_playlist_update(dev); + return 0; + +error: + pfifo->destroy_context(chan); + return ret; +} + +void +nvc0_fifo_destroy_context(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + struct nvc0_fifo_chan *fifoch; + + nv_mask(dev, 0x003004 + (chan->id * 8), 0x00000001, 0x00000000); + nv_wr32(dev, 0x002634, chan->id); + if (!nv_wait(dev, 0x0002634, 0xffffffff, chan->id)) + NV_WARN(dev, "0x2634 != chid: 0x%08x\n", nv_rd32(dev, 0x2634)); + + nvc0_fifo_playlist_update(dev); + + nv_wr32(dev, 0x003000 + (chan->id * 8), 0x00000000); + + if (chan->user) { + iounmap(chan->user); + chan->user = NULL; + } + + fifoch = chan->fifo_priv; + chan->fifo_priv = NULL; + if (!fifoch) + return; + + nouveau_gpuobj_ref(NULL, &fifoch->ramfc); + nouveau_gpuobj_ref(NULL, &fifoch->user); + kfree(fifoch); +} + +int +nvc0_fifo_load_context(struct nouveau_channel *chan) +{ + return 0; +} + +int +nvc0_fifo_unload_context(struct drm_device *dev) +{ + int i; + + for (i = 0; i < 128; i++) { + if (!(nv_rd32(dev, 0x003004 + (i * 8)) & 1)) + continue; + + nv_mask(dev, 0x003004 + (i * 8), 0x00000001, 0x00000000); + nv_wr32(dev, 0x002634, i); + if (!nv_wait(dev, 0x002634, 0xffffffff, i)) { + NV_INFO(dev, "PFIFO: kick ch %d failed: 0x%08x\n", + i, nv_rd32(dev, 0x002634)); + return -EBUSY; + } + } + + return 0; +} + +static void +nvc0_fifo_destroy(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; + struct nvc0_fifo_priv *priv; + + priv = pfifo->priv; + if (!priv) + return; + + nouveau_vm_put(&priv->user_vma); + nouveau_gpuobj_ref(NULL, &priv->playlist[1]); + nouveau_gpuobj_ref(NULL, &priv->playlist[0]); + kfree(priv); +} + +void +nvc0_fifo_takedown(struct drm_device *dev) +{ + nv_wr32(dev, 0x002140, 0x00000000); + nvc0_fifo_destroy(dev); +} + +static int +nvc0_fifo_create(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo; + struct nvc0_fifo_priv *priv; + int ret; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + pfifo->priv = priv; + + ret = nouveau_gpuobj_new(dev, NULL, 0x1000, 0x1000, 0, + &priv->playlist[0]); + if (ret) + goto error; + + ret = nouveau_gpuobj_new(dev, NULL, 0x1000, 0x1000, 0, + &priv->playlist[1]); + if (ret) + goto error; + + ret = nouveau_vm_get(dev_priv->bar1_vm, pfifo->channels * 0x1000, + 12, NV_MEM_ACCESS_RW, &priv->user_vma); + if (ret) + goto error; + + nouveau_irq_register(dev, 8, nvc0_fifo_isr); + NVOBJ_CLASS(dev, 0x506e, SW); /* nvsw */ + return 0; + +error: + nvc0_fifo_destroy(dev); + return ret; +} + +int +nvc0_fifo_init(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; + struct nvc0_fifo_priv *priv; + int ret, i; + + if (!pfifo->priv) { + ret = nvc0_fifo_create(dev); + if (ret) + return ret; + } + priv = pfifo->priv; + + /* reset PFIFO, enable all available PSUBFIFO areas */ + nv_mask(dev, 0x000200, 0x00000100, 0x00000000); + nv_mask(dev, 0x000200, 0x00000100, 0x00000100); + nv_wr32(dev, 0x000204, 0xffffffff); + nv_wr32(dev, 0x002204, 0xffffffff); + + priv->spoon_nr = hweight32(nv_rd32(dev, 0x002204)); + NV_DEBUG(dev, "PFIFO: %d subfifo(s)\n", priv->spoon_nr); + + /* assign engines to subfifos */ + if (priv->spoon_nr >= 3) { + nv_wr32(dev, 0x002208, ~(1 << 0)); /* PGRAPH */ + nv_wr32(dev, 0x00220c, ~(1 << 1)); /* PVP */ + nv_wr32(dev, 0x002210, ~(1 << 1)); /* PPP */ + nv_wr32(dev, 0x002214, ~(1 << 1)); /* PBSP */ + nv_wr32(dev, 0x002218, ~(1 << 2)); /* PCE0 */ + nv_wr32(dev, 0x00221c, ~(1 << 1)); /* PCE1 */ + } + + /* PSUBFIFO[n] */ + for (i = 0; i < priv->spoon_nr; i++) { + nv_mask(dev, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000); + nv_wr32(dev, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */ + nv_wr32(dev, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTR_EN */ + } + + nv_mask(dev, 0x002200, 0x00000001, 0x00000001); + nv_wr32(dev, 0x002254, 0x10000000 | priv->user_vma.offset >> 12); + + nv_wr32(dev, 0x002a00, 0xffffffff); /* clears PFIFO.INTR bit 30 */ + nv_wr32(dev, 0x002100, 0xffffffff); + nv_wr32(dev, 0x002140, 0xbfffffff); + + /* restore PFIFO context table */ + for (i = 0; i < 128; i++) { + chan = dev_priv->channels.ptr[i]; + if (!chan || !chan->fifo_priv) + continue; + + nv_wr32(dev, 0x003000 + (i * 8), 0xc0000000 | + (chan->ramin->vinst >> 12)); + nv_wr32(dev, 0x003004 + (i * 8), 0x001f0001); + } + nvc0_fifo_playlist_update(dev); + + return 0; +} + +struct nouveau_enum nvc0_fifo_fault_unit[] = { + { 0x00, "PGRAPH" }, + { 0x03, "PEEPHOLE" }, + { 0x04, "BAR1" }, + { 0x05, "BAR3" }, + { 0x07, "PFIFO" }, + { 0x10, "PBSP" }, + { 0x11, "PPPP" }, + { 0x13, "PCOUNTER" }, + { 0x14, "PVP" }, + { 0x15, "PCOPY0" }, + { 0x16, "PCOPY1" }, + { 0x17, "PDAEMON" }, + {} +}; + +struct nouveau_enum nvc0_fifo_fault_reason[] = { + { 0x00, "PT_NOT_PRESENT" }, + { 0x01, "PT_TOO_SHORT" }, + { 0x02, "PAGE_NOT_PRESENT" }, + { 0x03, "VM_LIMIT_EXCEEDED" }, + { 0x04, "NO_CHANNEL" }, + { 0x05, "PAGE_SYSTEM_ONLY" }, + { 0x06, "PAGE_READ_ONLY" }, + { 0x0a, "COMPRESSED_SYSRAM" }, + { 0x0c, "INVALID_STORAGE_TYPE" }, + {} +}; + +struct nouveau_enum nvc0_fifo_fault_hubclient[] = { + { 0x01, "PCOPY0" }, + { 0x02, "PCOPY1" }, + { 0x04, "DISPATCH" }, + { 0x05, "CTXCTL" }, + { 0x06, "PFIFO" }, + { 0x07, "BAR_READ" }, + { 0x08, "BAR_WRITE" }, + { 0x0b, "PVP" }, + { 0x0c, "PPPP" }, + { 0x0d, "PBSP" }, + { 0x11, "PCOUNTER" }, + { 0x12, "PDAEMON" }, + { 0x14, "CCACHE" }, + { 0x15, "CCACHE_POST" }, + {} +}; + +struct nouveau_enum nvc0_fifo_fault_gpcclient[] = { + { 0x01, "TEX" }, + { 0x0c, "ESETUP" }, + { 0x0e, "CTXCTL" }, + { 0x0f, "PROP" }, + {} +}; + +struct nouveau_bitfield nvc0_fifo_subfifo_intr[] = { +/* { 0x00008000, "" } seen with null ib push */ + { 0x00200000, "ILLEGAL_MTHD" }, + { 0x00800000, "EMPTY_SUBC" }, + {} +}; + +static void +nvc0_fifo_isr_vm_fault(struct drm_device *dev, int unit) +{ + u32 inst = nv_rd32(dev, 0x2800 + (unit * 0x10)); + u32 valo = nv_rd32(dev, 0x2804 + (unit * 0x10)); + u32 vahi = nv_rd32(dev, 0x2808 + (unit * 0x10)); + u32 stat = nv_rd32(dev, 0x280c + (unit * 0x10)); + u32 client = (stat & 0x00001f00) >> 8; + + NV_INFO(dev, "PFIFO: %s fault at 0x%010llx [", + (stat & 0x00000080) ? "write" : "read", (u64)vahi << 32 | valo); + nouveau_enum_print(nvc0_fifo_fault_reason, stat & 0x0000000f); + printk("] from "); + nouveau_enum_print(nvc0_fifo_fault_unit, unit); + if (stat & 0x00000040) { + printk("/"); + nouveau_enum_print(nvc0_fifo_fault_hubclient, client); + } else { + printk("/GPC%d/", (stat & 0x1f000000) >> 24); + nouveau_enum_print(nvc0_fifo_fault_gpcclient, client); + } + printk(" on channel 0x%010llx\n", (u64)inst << 12); +} + +static int +nvc0_fifo_page_flip(struct drm_device *dev, u32 chid) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_channel *chan = NULL; + unsigned long flags; + int ret = -EINVAL; + + spin_lock_irqsave(&dev_priv->channels.lock, flags); + if (likely(chid >= 0 && chid < dev_priv->engine.fifo.channels)) { + chan = dev_priv->channels.ptr[chid]; + if (likely(chan)) + ret = nouveau_finish_page_flip(chan, NULL); + } + spin_unlock_irqrestore(&dev_priv->channels.lock, flags); + return ret; +} + +static void +nvc0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit) +{ + u32 stat = nv_rd32(dev, 0x040108 + (unit * 0x2000)); + u32 addr = nv_rd32(dev, 0x0400c0 + (unit * 0x2000)); + u32 data = nv_rd32(dev, 0x0400c4 + (unit * 0x2000)); + u32 chid = nv_rd32(dev, 0x040120 + (unit * 0x2000)) & 0x7f; + u32 subc = (addr & 0x00070000); + u32 mthd = (addr & 0x00003ffc); + u32 show = stat; + + if (stat & 0x00200000) { + if (mthd == 0x0054) { + if (!nvc0_fifo_page_flip(dev, chid)) + show &= ~0x00200000; + } + } + + if (show) { + NV_INFO(dev, "PFIFO%d:", unit); + nouveau_bitfield_print(nvc0_fifo_subfifo_intr, show); + NV_INFO(dev, "PFIFO%d: ch %d subc %d mthd 0x%04x data 0x%08x\n", + unit, chid, subc, mthd, data); + } + + nv_wr32(dev, 0x0400c0 + (unit * 0x2000), 0x80600008); + nv_wr32(dev, 0x040108 + (unit * 0x2000), stat); +} + +static void +nvc0_fifo_isr(struct drm_device *dev) +{ + u32 stat = nv_rd32(dev, 0x002100); + + if (stat & 0x00000100) { + NV_INFO(dev, "PFIFO: unknown status 0x00000100\n"); + nv_wr32(dev, 0x002100, 0x00000100); + stat &= ~0x00000100; + } + + if (stat & 0x10000000) { + u32 units = nv_rd32(dev, 0x00259c); + u32 u = units; + + while (u) { + int i = ffs(u) - 1; + nvc0_fifo_isr_vm_fault(dev, i); + u &= ~(1 << i); + } + + nv_wr32(dev, 0x00259c, units); + stat &= ~0x10000000; + } + + if (stat & 0x20000000) { + u32 units = nv_rd32(dev, 0x0025a0); + u32 u = units; + + while (u) { + int i = ffs(u) - 1; + nvc0_fifo_isr_subfifo_intr(dev, i); + u &= ~(1 << i); + } + + nv_wr32(dev, 0x0025a0, units); + stat &= ~0x20000000; + } + + if (stat & 0x40000000) { + NV_INFO(dev, "PFIFO: unknown status 0x40000000\n"); + nv_mask(dev, 0x002a00, 0x00000000, 0x00000000); + stat &= ~0x40000000; + } + + if (stat) { + NV_INFO(dev, "PFIFO: unhandled status 0x%08x\n", stat); + nv_wr32(dev, 0x002100, stat); + nv_wr32(dev, 0x002140, 0); + } +} |