diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/Makefile | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_object.c | 132 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_ramht.c | 160 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_ramht.h | 31 |
4 files changed, 193 insertions, 132 deletions
diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile index e9b06e4ef2a2..d6cfbf259876 100644 --- a/drivers/gpu/drm/nouveau/Makefile +++ b/drivers/gpu/drm/nouveau/Makefile @@ -9,7 +9,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \ nouveau_bo.o nouveau_fence.o nouveau_gem.o nouveau_ttm.o \ nouveau_hw.o nouveau_calc.o nouveau_bios.o nouveau_i2c.o \ nouveau_display.o nouveau_connector.o nouveau_fbcon.o \ - nouveau_dp.o \ + nouveau_dp.o nouveau_ramht.o \ nv04_timer.o \ nv04_mc.o nv40_mc.o nv50_mc.o \ nv04_fb.o nv10_fb.o nv30_fb.o nv40_fb.o nv50_fb.o nvc0_fb.o \ diff --git a/drivers/gpu/drm/nouveau/nouveau_object.c b/drivers/gpu/drm/nouveau/nouveau_object.c index b6bcb254f4ab..e658aa2dbe67 100644 --- a/drivers/gpu/drm/nouveau/nouveau_object.c +++ b/drivers/gpu/drm/nouveau/nouveau_object.c @@ -34,6 +34,7 @@ #include "drm.h" #include "nouveau_drv.h" #include "nouveau_drm.h" +#include "nouveau_ramht.h" /* NVidia uses context objects to drive drawing operations. @@ -65,137 +66,6 @@ The key into the hash table depends on the object handle and channel id and is given as: */ -static uint32_t -nouveau_ramht_hash_handle(struct drm_device *dev, int channel, uint32_t handle) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - uint32_t hash = 0; - int i; - - NV_DEBUG(dev, "ch%d handle=0x%08x\n", channel, handle); - - for (i = 32; i > 0; i -= dev_priv->ramht_bits) { - hash ^= (handle & ((1 << dev_priv->ramht_bits) - 1)); - handle >>= dev_priv->ramht_bits; - } - - if (dev_priv->card_type < NV_50) - hash ^= channel << (dev_priv->ramht_bits - 4); - hash <<= 3; - - NV_DEBUG(dev, "hash=0x%08x\n", hash); - return hash; -} - -static int -nouveau_ramht_entry_valid(struct drm_device *dev, struct nouveau_gpuobj *ramht, - uint32_t offset) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - uint32_t ctx = nv_ro32(dev, ramht, (offset + 4)/4); - - if (dev_priv->card_type < NV_40) - return ((ctx & NV_RAMHT_CONTEXT_VALID) != 0); - return (ctx != 0); -} - -static int -nouveau_ramht_insert(struct drm_device *dev, struct nouveau_gpuobj_ref *ref) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem; - struct nouveau_channel *chan = ref->channel; - struct nouveau_gpuobj *ramht = chan->ramht ? chan->ramht->gpuobj : NULL; - uint32_t ctx, co, ho; - - if (!ramht) { - NV_ERROR(dev, "No hash table!\n"); - return -EINVAL; - } - - if (dev_priv->card_type < NV_40) { - ctx = NV_RAMHT_CONTEXT_VALID | (ref->instance >> 4) | - (chan->id << NV_RAMHT_CONTEXT_CHANNEL_SHIFT) | - (ref->gpuobj->engine << NV_RAMHT_CONTEXT_ENGINE_SHIFT); - } else - if (dev_priv->card_type < NV_50) { - ctx = (ref->instance >> 4) | - (chan->id << NV40_RAMHT_CONTEXT_CHANNEL_SHIFT) | - (ref->gpuobj->engine << NV40_RAMHT_CONTEXT_ENGINE_SHIFT); - } else { - if (ref->gpuobj->engine == NVOBJ_ENGINE_DISPLAY) { - ctx = (ref->instance << 10) | 2; - } else { - ctx = (ref->instance >> 4) | - ((ref->gpuobj->engine << - NV40_RAMHT_CONTEXT_ENGINE_SHIFT)); - } - } - - co = ho = nouveau_ramht_hash_handle(dev, chan->id, ref->handle); - do { - if (!nouveau_ramht_entry_valid(dev, ramht, co)) { - NV_DEBUG(dev, - "insert ch%d 0x%08x: h=0x%08x, c=0x%08x\n", - chan->id, co, ref->handle, ctx); - nv_wo32(dev, ramht, (co + 0)/4, ref->handle); - nv_wo32(dev, ramht, (co + 4)/4, ctx); - - list_add_tail(&ref->list, &chan->ramht_refs); - instmem->flush(dev); - return 0; - } - NV_DEBUG(dev, "collision ch%d 0x%08x: h=0x%08x\n", - chan->id, co, nv_ro32(dev, ramht, co/4)); - - co += 8; - if (co >= dev_priv->ramht_size) - co = 0; - } while (co != ho); - - NV_ERROR(dev, "RAMHT space exhausted. ch=%d\n", chan->id); - return -ENOMEM; -} - -static void -nouveau_ramht_remove(struct drm_device *dev, struct nouveau_gpuobj_ref *ref) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem; - struct nouveau_channel *chan = ref->channel; - struct nouveau_gpuobj *ramht = chan->ramht ? chan->ramht->gpuobj : NULL; - uint32_t co, ho; - - if (!ramht) { - NV_ERROR(dev, "No hash table!\n"); - return; - } - - co = ho = nouveau_ramht_hash_handle(dev, chan->id, ref->handle); - do { - if (nouveau_ramht_entry_valid(dev, ramht, co) && - (ref->handle == nv_ro32(dev, ramht, (co/4)))) { - NV_DEBUG(dev, - "remove ch%d 0x%08x: h=0x%08x, c=0x%08x\n", - chan->id, co, ref->handle, - nv_ro32(dev, ramht, (co + 4))); - nv_wo32(dev, ramht, (co + 0)/4, 0x00000000); - nv_wo32(dev, ramht, (co + 4)/4, 0x00000000); - - list_del(&ref->list); - instmem->flush(dev); - return; - } - - co += 8; - if (co >= dev_priv->ramht_size) - co = 0; - } while (co != ho); - list_del(&ref->list); - - NV_ERROR(dev, "RAMHT entry not found. ch=%d, handle=0x%08x\n", - chan->id, ref->handle); -} int nouveau_gpuobj_new(struct drm_device *dev, struct nouveau_channel *chan, diff --git a/drivers/gpu/drm/nouveau/nouveau_ramht.c b/drivers/gpu/drm/nouveau/nouveau_ramht.c new file mode 100644 index 000000000000..8b27ee5411b3 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_ramht.c @@ -0,0 +1,160 @@ +/* + * 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_ramht.h" + +static uint32_t +nouveau_ramht_hash_handle(struct drm_device *dev, int channel, uint32_t handle) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t hash = 0; + int i; + + NV_DEBUG(dev, "ch%d handle=0x%08x\n", channel, handle); + + for (i = 32; i > 0; i -= dev_priv->ramht_bits) { + hash ^= (handle & ((1 << dev_priv->ramht_bits) - 1)); + handle >>= dev_priv->ramht_bits; + } + + if (dev_priv->card_type < NV_50) + hash ^= channel << (dev_priv->ramht_bits - 4); + hash <<= 3; + + NV_DEBUG(dev, "hash=0x%08x\n", hash); + return hash; +} + +static int +nouveau_ramht_entry_valid(struct drm_device *dev, struct nouveau_gpuobj *ramht, + uint32_t offset) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t ctx = nv_ro32(dev, ramht, (offset + 4)/4); + + if (dev_priv->card_type < NV_40) + return ((ctx & NV_RAMHT_CONTEXT_VALID) != 0); + return (ctx != 0); +} + +int +nouveau_ramht_insert(struct drm_device *dev, struct nouveau_gpuobj_ref *ref) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem; + struct nouveau_channel *chan = ref->channel; + struct nouveau_gpuobj *ramht = chan->ramht ? chan->ramht->gpuobj : NULL; + uint32_t ctx, co, ho; + + if (!ramht) { + NV_ERROR(dev, "No hash table!\n"); + return -EINVAL; + } + + if (dev_priv->card_type < NV_40) { + ctx = NV_RAMHT_CONTEXT_VALID | (ref->instance >> 4) | + (chan->id << NV_RAMHT_CONTEXT_CHANNEL_SHIFT) | + (ref->gpuobj->engine << NV_RAMHT_CONTEXT_ENGINE_SHIFT); + } else + if (dev_priv->card_type < NV_50) { + ctx = (ref->instance >> 4) | + (chan->id << NV40_RAMHT_CONTEXT_CHANNEL_SHIFT) | + (ref->gpuobj->engine << NV40_RAMHT_CONTEXT_ENGINE_SHIFT); + } else { + if (ref->gpuobj->engine == NVOBJ_ENGINE_DISPLAY) { + ctx = (ref->instance << 10) | 2; + } else { + ctx = (ref->instance >> 4) | + ((ref->gpuobj->engine << + NV40_RAMHT_CONTEXT_ENGINE_SHIFT)); + } + } + + co = ho = nouveau_ramht_hash_handle(dev, chan->id, ref->handle); + do { + if (!nouveau_ramht_entry_valid(dev, ramht, co)) { + NV_DEBUG(dev, + "insert ch%d 0x%08x: h=0x%08x, c=0x%08x\n", + chan->id, co, ref->handle, ctx); + nv_wo32(dev, ramht, (co + 0)/4, ref->handle); + nv_wo32(dev, ramht, (co + 4)/4, ctx); + + list_add_tail(&ref->list, &chan->ramht_refs); + instmem->flush(dev); + return 0; + } + NV_DEBUG(dev, "collision ch%d 0x%08x: h=0x%08x\n", + chan->id, co, nv_ro32(dev, ramht, co/4)); + + co += 8; + if (co >= dev_priv->ramht_size) + co = 0; + } while (co != ho); + + NV_ERROR(dev, "RAMHT space exhausted. ch=%d\n", chan->id); + return -ENOMEM; +} + +void +nouveau_ramht_remove(struct drm_device *dev, struct nouveau_gpuobj_ref *ref) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem; + struct nouveau_channel *chan = ref->channel; + struct nouveau_gpuobj *ramht = chan->ramht ? chan->ramht->gpuobj : NULL; + uint32_t co, ho; + + if (!ramht) { + NV_ERROR(dev, "No hash table!\n"); + return; + } + + co = ho = nouveau_ramht_hash_handle(dev, chan->id, ref->handle); + do { + if (nouveau_ramht_entry_valid(dev, ramht, co) && + (ref->handle == nv_ro32(dev, ramht, (co/4)))) { + NV_DEBUG(dev, + "remove ch%d 0x%08x: h=0x%08x, c=0x%08x\n", + chan->id, co, ref->handle, + nv_ro32(dev, ramht, (co + 4))); + nv_wo32(dev, ramht, (co + 0)/4, 0x00000000); + nv_wo32(dev, ramht, (co + 4)/4, 0x00000000); + + list_del(&ref->list); + instmem->flush(dev); + return; + } + + co += 8; + if (co >= dev_priv->ramht_size) + co = 0; + } while (co != ho); + list_del(&ref->list); + + NV_ERROR(dev, "RAMHT entry not found. ch=%d, handle=0x%08x\n", + chan->id, ref->handle); +} diff --git a/drivers/gpu/drm/nouveau/nouveau_ramht.h b/drivers/gpu/drm/nouveau/nouveau_ramht.h new file mode 100644 index 000000000000..e10455c6e7ff --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_ramht.h @@ -0,0 +1,31 @@ +/* + * 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 + */ + +#ifndef __NOUVEAU_RAMHT_H__ +#define __NOUVEAU_RAMHT_H__ + +extern int nouveau_ramht_insert(struct drm_device *, struct nouveau_gpuobj_ref *); +extern void nouveau_ramht_remove(struct drm_device *, struct nouveau_gpuobj_ref *); + +#endif |
