diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_object.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_object.c | 1294 |
1 files changed, 1294 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_object.c b/drivers/gpu/drm/nouveau/nouveau_object.c new file mode 100644 index 00000000000..93379bb81be --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_object.c @@ -0,0 +1,1294 @@ +/* + * Copyright (C) 2006 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. + * + */ + +/* + * Authors: + * Ben Skeggs <darktama@iinet.net.au> + */ + +#include "drmP.h" +#include "drm.h" +#include "nouveau_drv.h" +#include "nouveau_drm.h" + +/* NVidia uses context objects to drive drawing operations. + + Context objects can be selected into 8 subchannels in the FIFO, + and then used via DMA command buffers. + + A context object is referenced by a user defined handle (CARD32). The HW + looks up graphics objects in a hash table in the instance RAM. + + An entry in the hash table consists of 2 CARD32. The first CARD32 contains + the handle, the second one a bitfield, that contains the address of the + object in instance RAM. + + The format of the second CARD32 seems to be: + + NV4 to NV30: + + 15: 0 instance_addr >> 4 + 17:16 engine (here uses 1 = graphics) + 28:24 channel id (here uses 0) + 31 valid (use 1) + + NV40: + + 15: 0 instance_addr >> 4 (maybe 19-0) + 21:20 engine (here uses 1 = graphics) + I'm unsure about the other bits, but using 0 seems to work. + + 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)); + } + } + + instmem->prepare_access(dev, true); + 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->finish_access(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); + instmem->finish_access(dev); + + 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; + } + + instmem->prepare_access(dev, true); + 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->finish_access(dev); + return; + } + + co += 8; + if (co >= dev_priv->ramht_size) + co = 0; + } while (co != ho); + list_del(&ref->list); + instmem->finish_access(dev); + + 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, + uint32_t size, int align, uint32_t flags, + struct nouveau_gpuobj **gpuobj_ret) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_engine *engine = &dev_priv->engine; + struct nouveau_gpuobj *gpuobj; + struct mem_block *pramin = NULL; + int ret; + + NV_DEBUG(dev, "ch%d size=%u align=%d flags=0x%08x\n", + chan ? chan->id : -1, size, align, flags); + + if (!dev_priv || !gpuobj_ret || *gpuobj_ret != NULL) + return -EINVAL; + + gpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL); + if (!gpuobj) + return -ENOMEM; + NV_DEBUG(dev, "gpuobj %p\n", gpuobj); + gpuobj->flags = flags; + gpuobj->im_channel = chan; + + list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list); + + /* Choose between global instmem heap, and per-channel private + * instmem heap. On <NV50 allow requests for private instmem + * to be satisfied from global heap if no per-channel area + * available. + */ + if (chan) { + if (chan->ramin_heap) { + NV_DEBUG(dev, "private heap\n"); + pramin = chan->ramin_heap; + } else + if (dev_priv->card_type < NV_50) { + NV_DEBUG(dev, "global heap fallback\n"); + pramin = dev_priv->ramin_heap; + } + } else { + NV_DEBUG(dev, "global heap\n"); + pramin = dev_priv->ramin_heap; + } + + if (!pramin) { + NV_ERROR(dev, "No PRAMIN heap!\n"); + return -EINVAL; + } + + if (!chan) { + ret = engine->instmem.populate(dev, gpuobj, &size); + if (ret) { + nouveau_gpuobj_del(dev, &gpuobj); + return ret; + } + } + + /* Allocate a chunk of the PRAMIN aperture */ + gpuobj->im_pramin = nouveau_mem_alloc_block(pramin, size, + drm_order(align), + (struct drm_file *)-2, 0); + if (!gpuobj->im_pramin) { + nouveau_gpuobj_del(dev, &gpuobj); + return -ENOMEM; + } + + if (!chan) { + ret = engine->instmem.bind(dev, gpuobj); + if (ret) { + nouveau_gpuobj_del(dev, &gpuobj); + return ret; + } + } + + if (gpuobj->flags & NVOBJ_FLAG_ZERO_ALLOC) { + int i; + + engine->instmem.prepare_access(dev, true); + for (i = 0; i < gpuobj->im_pramin->size; i += 4) + nv_wo32(dev, gpuobj, i/4, 0); + engine->instmem.finish_access(dev); + } + + *gpuobj_ret = gpuobj; + return 0; +} + +int +nouveau_gpuobj_early_init(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + + NV_DEBUG(dev, "\n"); + + INIT_LIST_HEAD(&dev_priv->gpuobj_list); + + return 0; +} + +int +nouveau_gpuobj_init(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + int ret; + + NV_DEBUG(dev, "\n"); + + if (dev_priv->card_type < NV_50) { + ret = nouveau_gpuobj_new_fake(dev, + dev_priv->ramht_offset, ~0, dev_priv->ramht_size, + NVOBJ_FLAG_ZERO_ALLOC | NVOBJ_FLAG_ALLOW_NO_REFS, + &dev_priv->ramht, NULL); + if (ret) + return ret; + } + + return 0; +} + +void +nouveau_gpuobj_takedown(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + + NV_DEBUG(dev, "\n"); + + nouveau_gpuobj_del(dev, &dev_priv->ramht); +} + +void +nouveau_gpuobj_late_takedown(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *gpuobj = NULL; + struct list_head *entry, *tmp; + + NV_DEBUG(dev, "\n"); + + list_for_each_safe(entry, tmp, &dev_priv->gpuobj_list) { + gpuobj = list_entry(entry, struct nouveau_gpuobj, list); + + NV_ERROR(dev, "gpuobj %p still exists at takedown, refs=%d\n", + gpuobj, gpuobj->refcount); + gpuobj->refcount = 0; + nouveau_gpuobj_del(dev, &gpuobj); + } +} + +int +nouveau_gpuobj_del(struct drm_device *dev, struct nouveau_gpuobj **pgpuobj) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_engine *engine = &dev_priv->engine; + struct nouveau_gpuobj *gpuobj; + int i; + + NV_DEBUG(dev, "gpuobj %p\n", pgpuobj ? *pgpuobj : NULL); + + if (!dev_priv || !pgpuobj || !(*pgpuobj)) + return -EINVAL; + gpuobj = *pgpuobj; + + if (gpuobj->refcount != 0) { + NV_ERROR(dev, "gpuobj refcount is %d\n", gpuobj->refcount); + return -EINVAL; + } + + if (gpuobj->im_pramin && (gpuobj->flags & NVOBJ_FLAG_ZERO_FREE)) { + engine->instmem.prepare_access(dev, true); + for (i = 0; i < gpuobj->im_pramin->size; i += 4) + nv_wo32(dev, gpuobj, i/4, 0); + engine->instmem.finish_access(dev); + } + + if (gpuobj->dtor) + gpuobj->dtor(dev, gpuobj); + + if (gpuobj->im_backing && !(gpuobj->flags & NVOBJ_FLAG_FAKE)) + engine->instmem.clear(dev, gpuobj); + + if (gpuobj->im_pramin) { + if (gpuobj->flags & NVOBJ_FLAG_FAKE) + kfree(gpuobj->im_pramin); + else + nouveau_mem_free_block(gpuobj->im_pramin); + } + + list_del(&gpuobj->list); + + *pgpuobj = NULL; + kfree(gpuobj); + return 0; +} + +static int +nouveau_gpuobj_instance_get(struct drm_device *dev, + struct nouveau_channel *chan, + struct nouveau_gpuobj *gpuobj, uint32_t *inst) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *cpramin; + + /* <NV50 use PRAMIN address everywhere */ + if (dev_priv->card_type < NV_50) { + *inst = gpuobj->im_pramin->start; + return 0; + } + + if (chan && gpuobj->im_channel != chan) { + NV_ERROR(dev, "Channel mismatch: obj %d, ref %d\n", + gpuobj->im_channel->id, chan->id); + return -EINVAL; + } + + /* NV50 channel-local instance */ + if (chan) { + cpramin = chan->ramin->gpuobj; + *inst = gpuobj->im_pramin->start - cpramin->im_pramin->start; + return 0; + } + + /* NV50 global (VRAM) instance */ + if (!gpuobj->im_channel) { + /* ...from global heap */ + if (!gpuobj->im_backing) { + NV_ERROR(dev, "AII, no VRAM backing gpuobj\n"); + return -EINVAL; + } + *inst = gpuobj->im_backing_start; + return 0; + } else { + /* ...from local heap */ + cpramin = gpuobj->im_channel->ramin->gpuobj; + *inst = cpramin->im_backing_start + + (gpuobj->im_pramin->start - cpramin->im_pramin->start); + return 0; + } + + return -EINVAL; +} + +int +nouveau_gpuobj_ref_add(struct drm_device *dev, struct nouveau_channel *chan, + uint32_t handle, struct nouveau_gpuobj *gpuobj, + struct nouveau_gpuobj_ref **ref_ret) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj_ref *ref; + uint32_t instance; + int ret; + + NV_DEBUG(dev, "ch%d h=0x%08x gpuobj=%p\n", + chan ? chan->id : -1, handle, gpuobj); + + if (!dev_priv || !gpuobj || (ref_ret && *ref_ret != NULL)) + return -EINVAL; + + if (!chan && !ref_ret) + return -EINVAL; + + if (gpuobj->engine == NVOBJ_ENGINE_SW && !gpuobj->im_pramin) { + /* sw object */ + instance = 0x40; + } else { + ret = nouveau_gpuobj_instance_get(dev, chan, gpuobj, &instance); + if (ret) + return ret; + } + + ref = kzalloc(sizeof(*ref), GFP_KERNEL); + if (!ref) + return -ENOMEM; + INIT_LIST_HEAD(&ref->list); + ref->gpuobj = gpuobj; + ref->channel = chan; + ref->instance = instance; + + if (!ref_ret) { + ref->handle = handle; + + ret = nouveau_ramht_insert(dev, ref); + if (ret) { + kfree(ref); + return ret; + } + } else { + ref->handle = ~0; + *ref_ret = ref; + } + + ref->gpuobj->refcount++; + return 0; +} + +int nouveau_gpuobj_ref_del(struct drm_device *dev, struct nouveau_gpuobj_ref **pref) +{ + struct nouveau_gpuobj_ref *ref; + + NV_DEBUG(dev, "ref %p\n", pref ? *pref : NULL); + + if (!dev || !pref || *pref == NULL) + return -EINVAL; + ref = *pref; + + if (ref->handle != ~0) + nouveau_ramht_remove(dev, ref); + + if (ref->gpuobj) { + ref->gpuobj->refcount--; + + if (ref->gpuobj->refcount == 0) { + if (!(ref->gpuobj->flags & NVOBJ_FLAG_ALLOW_NO_REFS)) + nouveau_gpuobj_del(dev, &ref->gpuobj); + } + } + + *pref = NULL; + kfree(ref); + return 0; +} + +int +nouveau_gpuobj_new_ref(struct drm_device *dev, + struct nouveau_channel *oc, struct nouveau_channel *rc, + uint32_t handle, uint32_t size, int align, + uint32_t flags, struct nouveau_gpuobj_ref **ref) +{ + struct nouveau_gpuobj *gpuobj = NULL; + int ret; + + ret = nouveau_gpuobj_new(dev, oc, size, align, flags, &gpuobj); + if (ret) + return ret; + + ret = nouveau_gpuobj_ref_add(dev, rc, handle, gpuobj, ref); + if (ret) { + nouveau_gpuobj_del(dev, &gpuobj); + return ret; + } + + return 0; +} + +int +nouveau_gpuobj_ref_find(struct nouveau_channel *chan, uint32_t handle, + struct nouveau_gpuobj_ref **ref_ret) +{ + struct nouveau_gpuobj_ref *ref; + struct list_head *entry, *tmp; + + list_for_each_safe(entry, tmp, &chan->ramht_refs) { + ref = list_entry(entry, struct nouveau_gpuobj_ref, list); + + if (ref->handle == handle) { + if (ref_ret) + *ref_ret = ref; + return 0; + } + } + + return -EINVAL; +} + +int +nouveau_gpuobj_new_fake(struct drm_device *dev, uint32_t p_offset, + uint32_t b_offset, uint32_t size, + uint32_t flags, struct nouveau_gpuobj **pgpuobj, + struct nouveau_gpuobj_ref **pref) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *gpuobj = NULL; + int i; + + NV_DEBUG(dev, + "p_offset=0x%08x b_offset=0x%08x size=0x%08x flags=0x%08x\n", + p_offset, b_offset, size, flags); + + gpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL); + if (!gpuobj) + return -ENOMEM; + NV_DEBUG(dev, "gpuobj %p\n", gpuobj); + gpuobj->im_channel = NULL; + gpuobj->flags = flags | NVOBJ_FLAG_FAKE; + + list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list); + + if (p_offset != ~0) { + gpuobj->im_pramin = kzalloc(sizeof(struct mem_block), + GFP_KERNEL); + if (!gpuobj->im_pramin) { + nouveau_gpuobj_del(dev, &gpuobj); + return -ENOMEM; + } + gpuobj->im_pramin->start = p_offset; + gpuobj->im_pramin->size = size; + } + + if (b_offset != ~0) { + gpuobj->im_backing = (struct nouveau_bo *)-1; + gpuobj->im_backing_start = b_offset; + } + + if (gpuobj->flags & NVOBJ_FLAG_ZERO_ALLOC) { + dev_priv->engine.instmem.prepare_access(dev, true); + for (i = 0; i < gpuobj->im_pramin->size; i += 4) + nv_wo32(dev, gpuobj, i/4, 0); + dev_priv->engine.instmem.finish_access(dev); + } + + if (pref) { + i = nouveau_gpuobj_ref_add(dev, NULL, 0, gpuobj, pref); + if (i) { + nouveau_gpuobj_del(dev, &gpuobj); + return i; + } + } + + if (pgpuobj) + *pgpuobj = gpuobj; + return 0; +} + + +static uint32_t +nouveau_gpuobj_class_instmem_size(struct drm_device *dev, int class) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + + /*XXX: dodgy hack for now */ + if (dev_priv->card_type >= NV_50) + return 24; + if (dev_priv->card_type >= NV_40) + return 32; + return 16; +} + +/* + DMA objects are used to reference a piece of memory in the + framebuffer, PCI or AGP address space. Each object is 16 bytes big + and looks as follows: + + entry[0] + 11:0 class (seems like I can always use 0 here) + 12 page table present? + 13 page entry linear? + 15:14 access: 0 rw, 1 ro, 2 wo + 17:16 target: 0 NV memory, 1 NV memory tiled, 2 PCI, 3 AGP + 31:20 dma adjust (bits 0-11 of the address) + entry[1] + dma limit (size of transfer) + entry[X] + 1 0 readonly, 1 readwrite + 31:12 dma frame address of the page (bits 12-31 of the address) + entry[N] + page table terminator, same value as the first pte, as does nvidia + rivatv uses 0xffffffff + + Non linear page tables need a list of frame addresses afterwards, + the rivatv project has some info on this. + + The method below creates a DMA object in instance RAM and returns a handle + to it that can be used to set up context objects. +*/ +int +nouveau_gpuobj_dma_new(struct nouveau_channel *chan, int class, + uint64_t offset, uint64_t size, int access, + int target, struct nouveau_gpuobj **gpuobj) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem; + int ret; + + NV_DEBUG(dev, "ch%d class=0x%04x offset=0x%llx size=0x%llx\n", + chan->id, class, offset, size); + NV_DEBUG(dev, "access=%d target=%d\n", access, target); + + switch (target) { + case NV_DMA_TARGET_AGP: + offset += dev_priv->gart_info.aper_base; + break; + default: + break; + } + + ret = nouveau_gpuobj_new(dev, chan, + nouveau_gpuobj_class_instmem_size(dev, class), + 16, NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, gpuobj); + if (ret) { + NV_ERROR(dev, "Error creating gpuobj: %d\n", ret); + return ret; + } + + instmem->prepare_access(dev, true); + + if (dev_priv->card_type < NV_50) { + uint32_t frame, adjust, pte_flags = 0; + + if (access != NV_DMA_ACCESS_RO) + pte_flags |= (1<<1); + adjust = offset & 0x00000fff; + frame = offset & ~0x00000fff; + + nv_wo32(dev, *gpuobj, 0, ((1<<12) | (1<<13) | + (adjust << 20) | + (access << 14) | + (target << 16) | + class)); + nv_wo32(dev, *gpuobj, 1, size - 1); + nv_wo32(dev, *gpuobj, 2, frame | pte_flags); + nv_wo32(dev, *gpuobj, 3, frame | pte_flags); + } else { + uint64_t limit = offset + size - 1; + uint32_t flags0, flags5; + + if (target == NV_DMA_TARGET_VIDMEM) { + flags0 = 0x00190000; + flags5 = 0x00010000; + } else { + flags0 = 0x7fc00000; + flags5 = 0x00080000; + } + + nv_wo32(dev, *gpuobj, 0, flags0 | class); + nv_wo32(dev, *gpuobj, 1, lower_32_bits(limit)); + nv_wo32(dev, *gpuobj, 2, lower_32_bits(offset)); + nv_wo32(dev, *gpuobj, 3, ((upper_32_bits(limit) & 0xff) << 24) | + (upper_32_bits(offset) & 0xff)); + nv_wo32(dev, *gpuobj, 5, flags5); + } + + instmem->finish_access(dev); + + (*gpuobj)->engine = NVOBJ_ENGINE_SW; + (*gpuobj)->class = class; + return 0; +} + +int +nouveau_gpuobj_gart_dma_new(struct nouveau_channel *chan, + uint64_t offset, uint64_t size, int access, + struct nouveau_gpuobj **gpuobj, + uint32_t *o_ret) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + int ret; + + if (dev_priv->gart_info.type == NOUVEAU_GART_AGP || + (dev_priv->card_type >= NV_50 && + dev_priv->gart_info.type == NOUVEAU_GART_SGDMA)) { + ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, + offset + dev_priv->vm_gart_base, + size, access, NV_DMA_TARGET_AGP, + gpuobj); + if (o_ret) + *o_ret = 0; + } else + if (dev_priv->gart_info.type == NOUVEAU_GART_SGDMA) { + *gpuobj = dev_priv->gart_info.sg_ctxdma; + if (offset & ~0xffffffffULL) { + NV_ERROR(dev, "obj offset exceeds 32-bits\n"); + return -EINVAL; + } + if (o_ret) + *o_ret = (uint32_t)offset; + ret = (*gpuobj != NULL) ? 0 : -EINVAL; + } else { + NV_ERROR(dev, "Invalid GART type %d\n", dev_priv->gart_info.type); + return -EINVAL; + } + + return ret; +} + +/* Context objects in the instance RAM have the following structure. + * On NV40 they are 32 byte long, on NV30 and smaller 16 bytes. + + NV4 - NV30: + + entry[0] + 11:0 class + 12 chroma key enable + 13 user clip enable + 14 swizzle enable + 17:15 patch config: + scrcopy_and, rop_and, blend_and, scrcopy, srccopy_pre, blend_pre + 18 synchronize enable + 19 endian: 1 big, 0 little + 21:20 dither mode + 23 single step enable + 24 patch status: 0 invalid, 1 valid + 25 context_surface 0: 1 valid + 26 context surface 1: 1 valid + 27 context pattern: 1 valid + 28 context rop: 1 valid + 29,30 context beta, beta4 + entry[1] + 7:0 mono format + 15:8 color format + 31:16 notify instance address + entry[2] + 15:0 dma 0 instance address + 31:16 dma 1 instance address + entry[3] + dma method traps + + NV40: + No idea what the exact format is. Here's what can be deducted: + + entry[0]: + 11:0 class (maybe uses more bits here?) + 17 user clip enable + 21:19 patch config + 25 patch status valid ? + entry[1]: + 15:0 DMA notifier (maybe 20:0) + entry[2]: + 15:0 DMA 0 instance (maybe 20:0) + 24 big endian + entry[3]: + 15:0 DMA 1 instance (maybe 20:0) + entry[4]: + entry[5]: + set to 0? +*/ +int +nouveau_gpuobj_gr_new(struct nouveau_channel *chan, int class, + struct nouveau_gpuobj **gpuobj) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + int ret; + + NV_DEBUG(dev, "ch%d class=0x%04x\n", chan->id, class); + + ret = nouveau_gpuobj_new(dev, chan, + nouveau_gpuobj_class_instmem_size(dev, class), + 16, + NVOBJ_FLAG_ZERO_ALLOC | NVOBJ_FLAG_ZERO_FREE, + gpuobj); + if (ret) { + NV_ERROR(dev, "Error creating gpuobj: %d\n", ret); + return ret; + } + + dev_priv->engine.instmem.prepare_access(dev, true); + if (dev_priv->card_type >= NV_50) { + nv_wo32(dev, *gpuobj, 0, class); + nv_wo32(dev, *gpuobj, 5, 0x00010000); + } else { + switch (class) { + case NV_CLASS_NULL: + nv_wo32(dev, *gpuobj, 0, 0x00001030); + nv_wo32(dev, *gpuobj, 1, 0xFFFFFFFF); + break; + default: + if (dev_priv->card_type >= NV_40) { + nv_wo32(dev, *gpuobj, 0, class); +#ifdef __BIG_ENDIAN + nv_wo32(dev, *gpuobj, 2, 0x01000000); +#endif + } else { +#ifdef __BIG_ENDIAN + nv_wo32(dev, *gpuobj, 0, class | 0x00080000); +#else + nv_wo32(dev, *gpuobj, 0, class); +#endif + } + } + } + dev_priv->engine.instmem.finish_access(dev); + + (*gpuobj)->engine = NVOBJ_ENGINE_GR; + (*gpuobj)->class = class; + return 0; +} + +static int +nouveau_gpuobj_sw_new(struct nouveau_channel *chan, int class, + struct nouveau_gpuobj **gpuobj_ret) +{ + struct drm_nouveau_private *dev_priv = chan->dev->dev_private; + struct nouveau_gpuobj *gpuobj; + + if (!chan || !gpuobj_ret || *gpuobj_ret != NULL) + return -EINVAL; + + gpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL); + if (!gpuobj) + return -ENOMEM; + gpuobj->engine = NVOBJ_ENGINE_SW; + gpuobj->class = class; + + list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list); + *gpuobj_ret = gpuobj; + return 0; +} + +static int +nouveau_gpuobj_channel_init_pramin(struct nouveau_channel *chan) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *pramin = NULL; + uint32_t size; + uint32_t base; + int ret; + + NV_DEBUG(dev, "ch%d\n", chan->id); + + /* Base amount for object storage (4KiB enough?) */ + size = 0x1000; + base = 0; + + /* PGRAPH context */ + + if (dev_priv->card_type == NV_50) { + /* Various fixed table thingos */ + size += 0x1400; /* mostly unknown stuff */ + size += 0x4000; /* vm pd */ + base = 0x6000; + /* RAMHT, not sure about setting size yet, 32KiB to be safe */ + size += 0x8000; + /* RAMFC */ + size += 0x1000; + /* PGRAPH context */ + size += 0x70000; + } + + NV_DEBUG(dev, "ch%d PRAMIN size: 0x%08x bytes, base alloc=0x%08x\n", + chan->id, size, base); + ret = nouveau_gpuobj_new_ref(dev, NULL, NULL, 0, size, 0x1000, 0, + &chan->ramin); + if (ret) { + NV_ERROR(dev, "Error allocating channel PRAMIN: %d\n", ret); + return ret; + } + pramin = chan->ramin->gpuobj; + + ret = nouveau_mem_init_heap(&chan->ramin_heap, + pramin->im_pramin->start + base, size); + if (ret) { + NV_ERROR(dev, "Error creating PRAMIN heap: %d\n", ret); + nouveau_gpuobj_ref_del(dev, &chan->ramin); + return ret; + } + + return 0; +} + +int +nouveau_gpuobj_channel_init(struct nouveau_channel *chan, + uint32_t vram_h, uint32_t tt_h) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem; + struct nouveau_gpuobj *vram = NULL, *tt = NULL; + int ret, i; + + INIT_LIST_HEAD(&chan->ramht_refs); + + NV_DEBUG(dev, "ch%d vram=0x%08x tt=0x%08x\n", chan->id, vram_h, tt_h); + + /* Reserve a block of PRAMIN for the channel + *XXX: maybe on <NV50 too at some point + */ + if (0 || dev_priv->card_type == NV_50) { + ret = nouveau_gpuobj_channel_init_pramin(chan); + if (ret) { + NV_ERROR(dev, "init pramin\n"); + return ret; + } + } + + /* NV50 VM + * - Allocate per-channel page-directory + * - Map GART and VRAM into the channel's address space at the + * locations determined during init. + */ + if (dev_priv->card_type >= NV_50) { + uint32_t vm_offset, pde; + + instmem->prepare_access(dev, true); + + vm_offset = (dev_priv->chipset & 0xf0) == 0x50 ? 0x1400 : 0x200; + vm_offset += chan->ramin->gpuobj->im_pramin->start; + + ret = nouveau_gpuobj_new_fake(dev, vm_offset, ~0, 0x4000, + 0, &chan->vm_pd, NULL); + if (ret) { + instmem->finish_access(dev); + return ret; + } + for (i = 0; i < 0x4000; i += 8) { + nv_wo32(dev, chan->vm_pd, (i+0)/4, 0x00000000); + nv_wo32(dev, chan->vm_pd, (i+4)/4, 0xdeadcafe); + } + + pde = (dev_priv->vm_gart_base / (512*1024*1024)) * 2; + ret = nouveau_gpuobj_ref_add(dev, NULL, 0, + dev_priv->gart_info.sg_ctxdma, + &chan->vm_gart_pt); + if (ret) { + instmem->finish_access(dev); + return ret; + } + nv_wo32(dev, chan->vm_pd, pde++, + chan->vm_gart_pt->instance | 0x03); + nv_wo32(dev, chan->vm_pd, pde++, 0x00000000); + + pde = (dev_priv->vm_vram_base / (512*1024*1024)) * 2; + for (i = 0; i < dev_priv->vm_vram_pt_nr; i++) { + ret = nouveau_gpuobj_ref_add(dev, NULL, 0, + dev_priv->vm_vram_pt[i], + &chan->vm_vram_pt[i]); + if (ret) { + instmem->finish_access(dev); + return ret; + } + + nv_wo32(dev, chan->vm_pd, pde++, + chan->vm_vram_pt[i]->instance | 0x61); + nv_wo32(dev, chan->vm_pd, pde++, 0x00000000); + } + + instmem->finish_access(dev); + } + + /* RAMHT */ + if (dev_priv->card_type < NV_50) { + ret = nouveau_gpuobj_ref_add(dev, NULL, 0, dev_priv->ramht, + &chan->ramht); + if (ret) + return ret; + } else { + ret = nouveau_gpuobj_new_ref(dev, chan, chan, 0, + 0x8000, 16, + NVOBJ_FLAG_ZERO_ALLOC, + &chan->ramht); + if (ret) + return ret; + } + + /* VRAM ctxdma */ + if (dev_priv->card_type >= NV_50) { + ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, + 0, dev_priv->vm_end, + NV_DMA_ACCESS_RW, + NV_DMA_TARGET_AGP, &vram); + if (ret) { + NV_ERROR(dev, "Error creating VRAM ctxdma: %d\n", ret); + return ret; + } + } else { + ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, + 0, dev_priv->fb_available_size, + NV_DMA_ACCESS_RW, + NV_DMA_TARGET_VIDMEM, &vram); + if (ret) { + NV_ERROR(dev, "Error creating VRAM ctxdma: %d\n", ret); + return ret; + } + } + + ret = nouveau_gpuobj_ref_add(dev, chan, vram_h, vram, NULL); + if (ret) { + NV_ERROR(dev, "Error referencing VRAM ctxdma: %d\n", ret); + return ret; + } + + /* TT memory ctxdma */ + if (dev_priv->card_type >= NV_50) { + tt = vram; + } else + if (dev_priv->gart_info.type != NOUVEAU_GART_NONE) { + ret = nouveau_gpuobj_gart_dma_new(chan, 0, + dev_priv->gart_info.aper_size, + NV_DMA_ACCESS_RW, &tt, NULL); + } else { + NV_ERROR(dev, "Invalid GART type %d\n", dev_priv->gart_info.type); + ret = -EINVAL; + } + + if (ret) { + NV_ERROR(dev, "Error creating TT ctxdma: %d\n", ret); + return ret; + } + + ret = nouveau_gpuobj_ref_add(dev, chan, tt_h, tt, NULL); + if (ret) { + NV_ERROR(dev, "Error referencing TT ctxdma: %d\n", ret); + return ret; + } + + return 0; +} + +void +nouveau_gpuobj_channel_takedown(struct nouveau_channel *chan) +{ + struct drm_nouveau_private *dev_priv = chan->dev->dev_private; + struct drm_device *dev = chan->dev; + struct list_head *entry, *tmp; + struct nouveau_gpuobj_ref *ref; + int i; + + NV_DEBUG(dev, "ch%d\n", chan->id); + + if (!chan->ramht_refs.next) + return; + + list_for_each_safe(entry, tmp, &chan->ramht_refs) { + ref = list_entry(entry, struct nouveau_gpuobj_ref, list); + + nouveau_gpuobj_ref_del(dev, &ref); + } + + nouveau_gpuobj_ref_del(dev, &chan->ramht); + + nouveau_gpuobj_del(dev, &chan->vm_pd); + nouveau_gpuobj_ref_del(dev, &chan->vm_gart_pt); + for (i = 0; i < dev_priv->vm_vram_pt_nr; i++) + nouveau_gpuobj_ref_del(dev, &chan->vm_vram_pt[i]); + + if (chan->ramin_heap) + nouveau_mem_takedown(&chan->ramin_heap); + if (chan->ramin) + nouveau_gpuobj_ref_del(dev, &chan->ramin); + +} + +int +nouveau_gpuobj_suspend(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *gpuobj; + int i; + + if (dev_priv->card_type < NV_50) { + dev_priv->susres.ramin_copy = vmalloc(dev_priv->ramin_rsvd_vram); + if (!dev_priv->susres.ramin_copy) + return -ENOMEM; + + for (i = 0; i < dev_priv->ramin_rsvd_vram; i += 4) + dev_priv->susres.ramin_copy[i/4] = nv_ri32(dev, i); + return 0; + } + + list_for_each_entry(gpuobj, &dev_priv->gpuobj_list, list) { + if (!gpuobj->im_backing || (gpuobj->flags & NVOBJ_FLAG_FAKE)) + continue; + + gpuobj->im_backing_suspend = vmalloc(gpuobj->im_pramin->size); + if (!gpuobj->im_backing_suspend) { + nouveau_gpuobj_resume(dev); + return -ENOMEM; + } + + dev_priv->engine.instmem.prepare_access(dev, false); + for (i = 0; i < gpuobj->im_pramin->size / 4; i++) + gpuobj->im_backing_suspend[i] = nv_ro32(dev, gpuobj, i); + dev_priv->engine.instmem.finish_access(dev); + } + + return 0; +} + +void +nouveau_gpuobj_suspend_cleanup(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *gpuobj; + + if (dev_priv->card_type < NV_50) { + vfree(dev_priv->susres.ramin_copy); + dev_priv->susres.ramin_copy = NULL; + return; + } + + list_for_each_entry(gpuobj, &dev_priv->gpuobj_list, list) { + if (!gpuobj->im_backing_suspend) + continue; + + vfree(gpuobj->im_backing_suspend); + gpuobj->im_backing_suspend = NULL; + } +} + +void +nouveau_gpuobj_resume(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *gpuobj; + int i; + + if (dev_priv->card_type < NV_50) { + for (i = 0; i < dev_priv->ramin_rsvd_vram; i += 4) + nv_wi32(dev, i, dev_priv->susres.ramin_copy[i/4]); + nouveau_gpuobj_suspend_cleanup(dev); + return; + } + + list_for_each_entry(gpuobj, &dev_priv->gpuobj_list, list) { + if (!gpuobj->im_backing_suspend) + continue; + + dev_priv->engine.instmem.prepare_access(dev, true); + for (i = 0; i < gpuobj->im_pramin->size / 4; i++) + nv_wo32(dev, gpuobj, i, gpuobj->im_backing_suspend[i]); + dev_priv->engine.instmem.finish_access(dev); + } + + nouveau_gpuobj_suspend_cleanup(dev); +} + +int nouveau_ioctl_grobj_alloc(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct drm_nouveau_grobj_alloc *init = data; + struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph; + struct nouveau_pgraph_object_class *grc; + struct nouveau_gpuobj *gr = NULL; + struct nouveau_channel *chan; + int ret; + + NOUVEAU_CHECK_INITIALISED_WITH_RETURN; + NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(init->channel, file_priv, chan); + + if (init->handle == ~0) + return -EINVAL; + + grc = pgraph->grclass; + while (grc->id) { + if (grc->id == init->class) + break; + grc++; + } + + if (!grc->id) { + NV_ERROR(dev, "Illegal object class: 0x%x\n", init->class); + return -EPERM; + } + + if (nouveau_gpuobj_ref_find(chan, init->handle, NULL) == 0) + return -EEXIST; + + if (!grc->software) + ret = nouveau_gpuobj_gr_new(chan, grc->id, &gr); + else + ret = nouveau_gpuobj_sw_new(chan, grc->id, &gr); + + if (ret) { + NV_ERROR(dev, "Error creating object: %d (%d/0x%08x)\n", + ret, init->channel, init->handle); + return ret; + } + + ret = nouveau_gpuobj_ref_add(dev, chan, init->handle, gr, NULL); + if (ret) { + NV_ERROR(dev, "Error referencing object: %d (%d/0x%08x)\n", + ret, init->channel, init->handle); + nouveau_gpuobj_del(dev, &gr); + return ret; + } + + return 0; +} + +int nouveau_ioctl_gpuobj_free(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_nouveau_gpuobj_free *objfree = data; + struct nouveau_gpuobj_ref *ref; + struct nouveau_channel *chan; + int ret; + + NOUVEAU_CHECK_INITIALISED_WITH_RETURN; + NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(objfree->channel, file_priv, chan); + + ret = nouveau_gpuobj_ref_find(chan, objfree->handle, &ref); + if (ret) + return ret; + nouveau_gpuobj_ref_del(dev, &ref); + + return 0; +} |