From: Ben Skeggs Date: Thu, 8 Mar 2012 00:41:45 +0000 (+1000) Subject: drm/nve0/fifo: initial implementation X-Git-Tag: v3.5-rc1~100^2^2~44 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=5132f37700210740117f5163b5df7aa1c8469a55;p=~emulex%2Finfiniband.git drm/nve0/fifo: initial implementation Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile index 01f13351a47..a0e22ef1a7d 100644 --- a/drivers/gpu/drm/nouveau/Makefile +++ b/drivers/gpu/drm/nouveau/Makefile @@ -17,6 +17,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \ nv04_fb.o nv10_fb.o nv20_fb.o nv30_fb.o nv40_fb.o \ nv50_fb.o nvc0_fb.o \ nv04_fifo.o nv10_fifo.o nv40_fifo.o nv50_fifo.o nvc0_fifo.o \ + nve0_fifo.o \ nv04_graph.o nv10_graph.o nv20_graph.o \ nv40_graph.o nv50_graph.o nvc0_graph.o \ nv40_grctx.o nv50_grctx.o nvc0_grctx.o \ diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 92c9a8a648d..5c4e015692d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -70,7 +70,7 @@ struct nouveau_mem; #define MAX_NUM_DCB_ENTRIES 16 -#define NOUVEAU_MAX_CHANNEL_NR 128 +#define NOUVEAU_MAX_CHANNEL_NR 4096 #define NOUVEAU_MAX_TILE_NR 15 struct nouveau_mem { @@ -1260,6 +1260,14 @@ extern void nvc0_fifo_destroy_context(struct nouveau_channel *); extern int nvc0_fifo_load_context(struct nouveau_channel *); extern int nvc0_fifo_unload_context(struct drm_device *); +/* nve0_fifo.c */ +extern int nve0_fifo_init(struct drm_device *); +extern void nve0_fifo_takedown(struct drm_device *); +extern int nve0_fifo_channel_id(struct drm_device *); +extern int nve0_fifo_create_context(struct nouveau_channel *); +extern void nve0_fifo_destroy_context(struct nouveau_channel *); +extern int nve0_fifo_unload_context(struct drm_device *); + /* nv04_graph.c */ extern int nv04_graph_create(struct drm_device *); extern int nv04_graph_object_new(struct nouveau_channel *, int, u32, u16); diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index 298c09b7556..64f9d42bfb7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -496,13 +496,17 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->timer.takedown = nv04_timer_takedown; engine->fb.init = nvc0_fb_init; engine->fb.takedown = nvc0_fb_takedown; - engine->fifo.channels = 0; - engine->fifo.init = nouveau_stub_init; - engine->fifo.takedown = nouveau_stub_takedown; + engine->fifo.channels = 4096; + engine->fifo.init = nve0_fifo_init; + engine->fifo.takedown = nve0_fifo_takedown; engine->fifo.disable = nvc0_fifo_disable; engine->fifo.enable = nvc0_fifo_enable; engine->fifo.reassign = nvc0_fifo_reassign; - engine->fifo.unload_context = nouveau_stub_init; + engine->fifo.channel_id = nve0_fifo_channel_id; + engine->fifo.create_context = nve0_fifo_create_context; + engine->fifo.destroy_context = nve0_fifo_destroy_context; + engine->fifo.load_context = nvc0_fifo_load_context; + engine->fifo.unload_context = nve0_fifo_unload_context; engine->display.early_init = nouveau_stub_init; engine->display.late_takedown = nouveau_stub_takedown; engine->display.create = nvd0_display_create; diff --git a/drivers/gpu/drm/nouveau/nve0_fifo.c b/drivers/gpu/drm/nouveau/nve0_fifo.c new file mode 100644 index 00000000000..82ad47cdeab --- /dev/null +++ b/drivers/gpu/drm/nouveau/nve0_fifo.c @@ -0,0 +1,459 @@ +/* + * 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" + +#define NVE0_FIFO_ENGINE_NUM 32 + +static void nve0_fifo_isr(struct drm_device *); + +struct nve0_fifo_engine { + struct nouveau_gpuobj *playlist[2]; + int cur_playlist; +}; + +struct nve0_fifo_priv { + struct nve0_fifo_engine engine[NVE0_FIFO_ENGINE_NUM]; + struct { + struct nouveau_gpuobj *mem; + struct nouveau_vma bar; + } user; + int spoon_nr; +}; + +struct nve0_fifo_chan { + struct nouveau_gpuobj *ramfc; + u32 engine; +}; + +static void +nve0_fifo_playlist_update(struct drm_device *dev, u32 engine) +{ + 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 nve0_fifo_priv *priv = pfifo->priv; + struct nve0_fifo_engine *peng = &priv->engine[engine]; + struct nouveau_gpuobj *cur; + u32 match = (engine << 16) | 0x00000001; + int ret, i, p; + + cur = peng->playlist[peng->cur_playlist]; + if (unlikely(cur == NULL)) { + ret = nouveau_gpuobj_new(dev, NULL, 0x8000, 0x1000, 0, &cur); + if (ret) { + NV_ERROR(dev, "PFIFO: playlist alloc failed\n"); + return; + } + + peng->playlist[peng->cur_playlist] = cur; + } + + peng->cur_playlist = !peng->cur_playlist; + + for (i = 0, p = 0; i < pfifo->channels; i++) { + u32 ctrl = nv_rd32(dev, 0x800004 + (i * 8)) & 0x001f0001; + if (ctrl != match) + continue; + nv_wo32(cur, p + 0, i); + nv_wo32(cur, p + 4, 0x00000000); + p += 8; + } + pinstmem->flush(dev); + + nv_wr32(dev, 0x002270, cur->vinst >> 12); + nv_wr32(dev, 0x002274, (engine << 20) | (p >> 3)); + if (!nv_wait(dev, 0x002284 + (engine * 4), 0x00100000, 0x00000000)) + NV_ERROR(dev, "PFIFO: playlist %d update timeout\n", engine); +} + +int +nve0_fifo_channel_id(struct drm_device *dev) +{ + return 4095; +} + +int +nve0_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 nve0_fifo_priv *priv = pfifo->priv; + struct nve0_fifo_chan *fifoch; + u64 usermem = priv->user.mem->vinst + chan->id * 512; + 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; + fifoch->engine = 0; /* PGRAPH */ + + /* allocate vram for control regs, map into polling area */ + chan->user = ioremap_wc(pci_resource_start(dev->pdev, 1) + + priv->user.bar.offset + (chan->id * 512), 512); + 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(usermem)); + nv_wo32(fifoch->ramfc, 0x0c, upper_32_bits(usermem)); + 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, 0x84, 0x20400000); + nv_wo32(fifoch->ramfc, 0x94, 0x30000001); + nv_wo32(fifoch->ramfc, 0x9c, 0x00000100); + nv_wo32(fifoch->ramfc, 0xac, 0x0000001f); + nv_wo32(fifoch->ramfc, 0xe4, 0x00000000); + nv_wo32(fifoch->ramfc, 0xe8, chan->id); + nv_wo32(fifoch->ramfc, 0xf8, 0x10003080); /* 0x002310 */ + nv_wo32(fifoch->ramfc, 0xfc, 0x10000010); /* 0x002350 */ + pinstmem->flush(dev); + + nv_wr32(dev, 0x800000 + (chan->id * 8), 0x80000000 | + (chan->ramin->vinst >> 12)); + nv_mask(dev, 0x800004 + (chan->id * 8), 0x00000400, 0x00000400); + nve0_fifo_playlist_update(dev, fifoch->engine); + nv_mask(dev, 0x800004 + (chan->id * 8), 0x00000400, 0x00000400); + return 0; + +error: + pfifo->destroy_context(chan); + return ret; +} + +void +nve0_fifo_destroy_context(struct nouveau_channel *chan) +{ + struct nve0_fifo_chan *fifoch = chan->fifo_priv; + struct drm_device *dev = chan->dev; + + if (!fifoch) + return; + + nv_mask(dev, 0x800004 + (chan->id * 8), 0x00000800, 0x00000800); + 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)); + nve0_fifo_playlist_update(dev, fifoch->engine); + nv_wr32(dev, 0x800000 + (chan->id * 8), 0x00000000); + + if (chan->user) { + iounmap(chan->user); + chan->user = NULL; + } + + nouveau_gpuobj_ref(NULL, &fifoch->ramfc); + chan->fifo_priv = NULL; + kfree(fifoch); +} + +int +nve0_fifo_load_context(struct nouveau_channel *chan) +{ + return 0; +} + +int +nve0_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; + int i; + + for (i = 0; i < pfifo->channels; i++) { + if (!(nv_rd32(dev, 0x800004 + (i * 8)) & 1)) + continue; + + nv_mask(dev, 0x800004 + (i * 8), 0x00000800, 0x00000800); + 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 +nve0_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 nve0_fifo_priv *priv; + int i; + + priv = pfifo->priv; + if (!priv) + return; + + nouveau_vm_put(&priv->user.bar); + nouveau_gpuobj_ref(NULL, &priv->user.mem); + + for (i = 0; i < NVE0_FIFO_ENGINE_NUM; i++) { + nouveau_gpuobj_ref(NULL, &priv->engine[i].playlist[0]); + nouveau_gpuobj_ref(NULL, &priv->engine[i].playlist[1]); + } + kfree(priv); +} + +void +nve0_fifo_takedown(struct drm_device *dev) +{ + nv_wr32(dev, 0x002140, 0x00000000); + nve0_fifo_destroy(dev); +} + +static int +nve0_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 nve0_fifo_priv *priv; + int ret; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + pfifo->priv = priv; + + ret = nouveau_gpuobj_new(dev, NULL, pfifo->channels * 512, 0x1000, + NVOBJ_FLAG_ZERO_ALLOC, &priv->user.mem); + if (ret) + goto error; + + ret = nouveau_vm_get(dev_priv->bar1_vm, priv->user.mem->size, + 12, NV_MEM_ACCESS_RW, &priv->user.bar); + if (ret) + goto error; + + nouveau_vm_map(&priv->user.bar, *(struct nouveau_mem **)priv->user.mem->node); + + nouveau_irq_register(dev, 8, nve0_fifo_isr); + return 0; + +error: + nve0_fifo_destroy(dev); + return ret; +} + +int +nve0_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 nve0_fifo_chan *fifoch; + struct nve0_fifo_priv *priv; + int ret, i; + + if (!pfifo->priv) { + ret = nve0_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); + + priv->spoon_nr = hweight32(nv_rd32(dev, 0x000204)); + NV_DEBUG(dev, "PFIFO: %d subfifo(s)\n", priv->spoon_nr); + + /* 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_wr32(dev, 0x002254, 0x10000000 | priv->user.bar.offset >> 12); + + nv_wr32(dev, 0x002a00, 0xffffffff); + nv_wr32(dev, 0x002100, 0xffffffff); + nv_wr32(dev, 0x002140, 0xbfffffff); + + /* restore PFIFO context table */ + for (i = 0; i < pfifo->channels; i++) { + chan = dev_priv->channels.ptr[i]; + if (!chan || !chan->fifo_priv) + continue; + fifoch = chan->fifo_priv; + + nv_wr32(dev, 0x800000 + (i * 8), 0x80000000 | + (chan->ramin->vinst >> 12)); + nv_mask(dev, 0x800004 + (i * 8), 0x00000400, 0x00000400); + nve0_fifo_playlist_update(dev, fifoch->engine); + nv_mask(dev, 0x800004 + (i * 8), 0x00000400, 0x00000400); + } + + return 0; +} + +struct nouveau_enum nve0_fifo_fault_unit[] = { + {} +}; + +struct nouveau_enum nve0_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 nve0_fifo_fault_hubclient[] = { + {} +}; + +struct nouveau_enum nve0_fifo_fault_gpcclient[] = { + {} +}; + +struct nouveau_bitfield nve0_fifo_subfifo_intr[] = { + { 0x00200000, "ILLEGAL_MTHD" }, + { 0x00800000, "EMPTY_SUBC" }, + {} +}; + +static void +nve0_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(nve0_fifo_fault_reason, stat & 0x0000000f); + printk("] from "); + nouveau_enum_print(nve0_fifo_fault_unit, unit); + if (stat & 0x00000040) { + printk("/"); + nouveau_enum_print(nve0_fifo_fault_hubclient, client); + } else { + printk("/GPC%d/", (stat & 0x1f000000) >> 24); + nouveau_enum_print(nve0_fifo_fault_gpcclient, client); + } + printk(" on channel 0x%010llx\n", (u64)inst << 12); +} + +static void +nve0_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); + + NV_INFO(dev, "PSUBFIFO %d:", unit); + nouveau_bitfield_print(nve0_fifo_subfifo_intr, stat); + NV_INFO(dev, "PSUBFIFO %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 +nve0_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; + nve0_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; + nve0_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); + } +}