diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_gem.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_gem.c | 890 |
1 files changed, 890 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c new file mode 100644 index 0000000..b4b4d0c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -0,0 +1,890 @@ +/* + * Copyright (C) 2008 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 <subdev/fb.h> + +#include "nouveau_drm.h" +#include "nouveau_dma.h" +#include "nouveau_fence.h" +#include "nouveau_abi16.h" + +#include "nouveau_ttm.h" +#include "nouveau_gem.h" + +int +nouveau_gem_object_new(struct drm_gem_object *gem) +{ + return 0; +} + +void +nouveau_gem_object_del(struct drm_gem_object *gem) +{ + struct nouveau_bo *nvbo = gem->driver_private; + struct ttm_buffer_object *bo = &nvbo->bo; + + if (!nvbo) + return; + nvbo->gem = NULL; + + if (unlikely(nvbo->pin_refcnt)) { + nvbo->pin_refcnt = 1; + nouveau_bo_unpin(nvbo); + } + + if (gem->import_attach) + drm_prime_gem_destroy(gem, nvbo->bo.sg); + + ttm_bo_unref(&bo); + + drm_gem_object_release(gem); + kfree(gem); +} + +int +nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv) +{ + struct nouveau_cli *cli = nouveau_cli(file_priv); + struct nouveau_bo *nvbo = nouveau_gem_object(gem); + struct nouveau_vma *vma; + int ret; + + if (!cli->base.vm) + return 0; + + ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0); + if (ret) + return ret; + + vma = nouveau_bo_vma_find(nvbo, cli->base.vm); + if (!vma) { + vma = kzalloc(sizeof(*vma), GFP_KERNEL); + if (!vma) { + ret = -ENOMEM; + goto out; + } + + ret = nouveau_bo_vma_add(nvbo, cli->base.vm, vma); + if (ret) { + kfree(vma); + goto out; + } + } else { + vma->refcount++; + } + +out: + ttm_bo_unreserve(&nvbo->bo); + return ret; +} + +void +nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) +{ + struct nouveau_cli *cli = nouveau_cli(file_priv); + struct nouveau_bo *nvbo = nouveau_gem_object(gem); + struct nouveau_vma *vma; + int ret; + + if (!cli->base.vm) + return; + + ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0); + if (ret) + return; + + vma = nouveau_bo_vma_find(nvbo, cli->base.vm); + if (vma) { + if (--vma->refcount == 0) { + nouveau_bo_vma_del(nvbo, vma); + kfree(vma); + } + } + ttm_bo_unreserve(&nvbo->bo); +} + +int +nouveau_gem_new(struct drm_device *dev, int size, int align, uint32_t domain, + uint32_t tile_mode, uint32_t tile_flags, + struct nouveau_bo **pnvbo) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nouveau_bo *nvbo; + u32 flags = 0; + int ret; + + if (domain & NOUVEAU_GEM_DOMAIN_VRAM) + flags |= TTM_PL_FLAG_VRAM; + if (domain & NOUVEAU_GEM_DOMAIN_GART) + flags |= TTM_PL_FLAG_TT; + if (!flags || domain & NOUVEAU_GEM_DOMAIN_CPU) + flags |= TTM_PL_FLAG_SYSTEM; + + ret = nouveau_bo_new(dev, size, align, flags, tile_mode, + tile_flags, NULL, pnvbo); + if (ret) + return ret; + nvbo = *pnvbo; + + /* we restrict allowed domains on nv50+ to only the types + * that were requested at creation time. not possibly on + * earlier chips without busting the ABI. + */ + nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_VRAM | + NOUVEAU_GEM_DOMAIN_GART; + if (nv_device(drm->device)->card_type >= NV_50) + nvbo->valid_domains &= domain; + + nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size); + if (!nvbo->gem) { + nouveau_bo_ref(NULL, pnvbo); + return -ENOMEM; + } + + nvbo->bo.persistent_swap_storage = nvbo->gem->filp; + nvbo->gem->driver_private = nvbo; + return 0; +} + +static int +nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem, + struct drm_nouveau_gem_info *rep) +{ + struct nouveau_cli *cli = nouveau_cli(file_priv); + struct nouveau_bo *nvbo = nouveau_gem_object(gem); + struct nouveau_vma *vma; + + if (nvbo->bo.mem.mem_type == TTM_PL_TT) + rep->domain = NOUVEAU_GEM_DOMAIN_GART; + else + rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; + + rep->offset = nvbo->bo.offset; + if (cli->base.vm) { + vma = nouveau_bo_vma_find(nvbo, cli->base.vm); + if (!vma) + return -EINVAL; + + rep->offset = vma->offset; + } + + rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; + rep->map_handle = nvbo->bo.addr_space_offset; + rep->tile_mode = nvbo->tile_mode; + rep->tile_flags = nvbo->tile_flags; + return 0; +} + +int +nouveau_gem_ioctl_new(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nouveau_cli *cli = nouveau_cli(file_priv); + struct nouveau_fb *pfb = nouveau_fb(drm->device); + struct drm_nouveau_gem_new *req = data; + struct nouveau_bo *nvbo = NULL; + int ret = 0; + + drm->ttm.bdev.dev_mapping = drm->dev->dev_mapping; + + if (!pfb->memtype_valid(pfb, req->info.tile_flags)) { + NV_ERROR(cli, "bad page flags: 0x%08x\n", req->info.tile_flags); + return -EINVAL; + } + + ret = nouveau_gem_new(dev, req->info.size, req->align, + req->info.domain, req->info.tile_mode, + req->info.tile_flags, &nvbo); + if (ret) + return ret; + + ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle); + if (ret == 0) { + ret = nouveau_gem_info(file_priv, nvbo->gem, &req->info); + if (ret) + drm_gem_handle_delete(file_priv, req->info.handle); + } + + /* drop reference from allocate - handle holds it now */ + drm_gem_object_unreference_unlocked(nvbo->gem); + return ret; +} + +static int +nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, + uint32_t write_domains, uint32_t valid_domains) +{ + struct nouveau_bo *nvbo = gem->driver_private; + struct ttm_buffer_object *bo = &nvbo->bo; + uint32_t domains = valid_domains & nvbo->valid_domains & + (write_domains ? write_domains : read_domains); + uint32_t pref_flags = 0, valid_flags = 0; + + if (!domains) + return -EINVAL; + + if (valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) + valid_flags |= TTM_PL_FLAG_VRAM; + + if (valid_domains & NOUVEAU_GEM_DOMAIN_GART) + valid_flags |= TTM_PL_FLAG_TT; + + if ((domains & NOUVEAU_GEM_DOMAIN_VRAM) && + bo->mem.mem_type == TTM_PL_VRAM) + pref_flags |= TTM_PL_FLAG_VRAM; + + else if ((domains & NOUVEAU_GEM_DOMAIN_GART) && + bo->mem.mem_type == TTM_PL_TT) + pref_flags |= TTM_PL_FLAG_TT; + + else if (domains & NOUVEAU_GEM_DOMAIN_VRAM) + pref_flags |= TTM_PL_FLAG_VRAM; + + else + pref_flags |= TTM_PL_FLAG_TT; + + nouveau_bo_placement_set(nvbo, pref_flags, valid_flags); + + return 0; +} + +struct validate_op { + struct list_head vram_list; + struct list_head gart_list; + struct list_head both_list; +}; + +static void +validate_fini_list(struct list_head *list, struct nouveau_fence *fence) +{ + struct list_head *entry, *tmp; + struct nouveau_bo *nvbo; + + list_for_each_safe(entry, tmp, list) { + nvbo = list_entry(entry, struct nouveau_bo, entry); + + nouveau_bo_fence(nvbo, fence); + + if (unlikely(nvbo->validate_mapped)) { + ttm_bo_kunmap(&nvbo->kmap); + nvbo->validate_mapped = false; + } + + list_del(&nvbo->entry); + nvbo->reserved_by = NULL; + ttm_bo_unreserve(&nvbo->bo); + drm_gem_object_unreference_unlocked(nvbo->gem); + } +} + +static void +validate_fini(struct validate_op *op, struct nouveau_fence* fence) +{ + validate_fini_list(&op->vram_list, fence); + validate_fini_list(&op->gart_list, fence); + validate_fini_list(&op->both_list, fence); +} + +static int +validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, + struct drm_nouveau_gem_pushbuf_bo *pbbo, + int nr_buffers, struct validate_op *op) +{ + struct nouveau_cli *cli = nouveau_cli(file_priv); + struct drm_device *dev = chan->drm->dev; + struct nouveau_drm *drm = nouveau_drm(dev); + uint32_t sequence; + int trycnt = 0; + int ret, i; + struct nouveau_bo *res_bo = NULL; + + sequence = atomic_add_return(1, &drm->ttm.validate_sequence); +retry: + if (++trycnt > 100000) { + NV_ERROR(cli, "%s failed and gave up.\n", __func__); + return -EINVAL; + } + + for (i = 0; i < nr_buffers; i++) { + struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[i]; + struct drm_gem_object *gem; + struct nouveau_bo *nvbo; + + gem = drm_gem_object_lookup(dev, file_priv, b->handle); + if (!gem) { + NV_ERROR(cli, "Unknown handle 0x%08x\n", b->handle); + validate_fini(op, NULL); + return -ENOENT; + } + nvbo = gem->driver_private; + if (nvbo == res_bo) { + res_bo = NULL; + drm_gem_object_unreference_unlocked(gem); + continue; + } + + if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { + NV_ERROR(cli, "multiple instances of buffer %d on " + "validation list\n", b->handle); + drm_gem_object_unreference_unlocked(gem); + validate_fini(op, NULL); + return -EINVAL; + } + + ret = ttm_bo_reserve(&nvbo->bo, true, false, true, sequence); + if (ret) { + validate_fini(op, NULL); + if (unlikely(ret == -EAGAIN)) { + sequence = atomic_add_return(1, &drm->ttm.validate_sequence); + ret = ttm_bo_reserve_slowpath(&nvbo->bo, true, + sequence); + if (!ret) + res_bo = nvbo; + } + if (unlikely(ret)) { + drm_gem_object_unreference_unlocked(gem); + if (ret != -ERESTARTSYS) + NV_ERROR(cli, "fail reserve\n"); + return ret; + } + } + + b->user_priv = (uint64_t)(unsigned long)nvbo; + nvbo->reserved_by = file_priv; + nvbo->pbbo_index = i; + if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && + (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) + list_add_tail(&nvbo->entry, &op->both_list); + else + if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) + list_add_tail(&nvbo->entry, &op->vram_list); + else + if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) + list_add_tail(&nvbo->entry, &op->gart_list); + else { + NV_ERROR(cli, "invalid valid domains: 0x%08x\n", + b->valid_domains); + list_add_tail(&nvbo->entry, &op->both_list); + validate_fini(op, NULL); + return -EINVAL; + } + if (nvbo == res_bo) + goto retry; + } + + return 0; +} + +static int +validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo) +{ + struct nouveau_fence *fence = NULL; + int ret = 0; + + spin_lock(&nvbo->bo.bdev->fence_lock); + if (nvbo->bo.sync_obj) + fence = nouveau_fence_ref(nvbo->bo.sync_obj); + spin_unlock(&nvbo->bo.bdev->fence_lock); + + if (fence) { + ret = nouveau_fence_sync(fence, chan); + nouveau_fence_unref(&fence); + } + + return ret; +} + +static int +validate_list(struct nouveau_channel *chan, struct nouveau_cli *cli, + struct list_head *list, struct drm_nouveau_gem_pushbuf_bo *pbbo, + uint64_t user_pbbo_ptr) +{ + struct nouveau_drm *drm = chan->drm; + struct drm_nouveau_gem_pushbuf_bo __user *upbbo = + (void __force __user *)(uintptr_t)user_pbbo_ptr; + struct nouveau_bo *nvbo; + int ret, relocs = 0; + + list_for_each_entry(nvbo, list, entry) { + struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index]; + + ret = validate_sync(chan, nvbo); + if (unlikely(ret)) { + NV_ERROR(cli, "fail pre-validate sync\n"); + return ret; + } + + ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains, + b->write_domains, + b->valid_domains); + if (unlikely(ret)) { + NV_ERROR(cli, "fail set_domain\n"); + return ret; + } + + ret = nouveau_bo_validate(nvbo, true, false); + if (unlikely(ret)) { + if (ret != -ERESTARTSYS) + NV_ERROR(cli, "fail ttm_validate\n"); + return ret; + } + + ret = validate_sync(chan, nvbo); + if (unlikely(ret)) { + NV_ERROR(cli, "fail post-validate sync\n"); + return ret; + } + + if (nv_device(drm->device)->card_type < NV_50) { + if (nvbo->bo.offset == b->presumed.offset && + ((nvbo->bo.mem.mem_type == TTM_PL_VRAM && + b->presumed.domain & NOUVEAU_GEM_DOMAIN_VRAM) || + (nvbo->bo.mem.mem_type == TTM_PL_TT && + b->presumed.domain & NOUVEAU_GEM_DOMAIN_GART))) + continue; + + if (nvbo->bo.mem.mem_type == TTM_PL_TT) + b->presumed.domain = NOUVEAU_GEM_DOMAIN_GART; + else + b->presumed.domain = NOUVEAU_GEM_DOMAIN_VRAM; + b->presumed.offset = nvbo->bo.offset; + b->presumed.valid = 0; + relocs++; + + if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index].presumed, + &b->presumed, sizeof(b->presumed))) + return -EFAULT; + } + } + + return relocs; +} + +static int +nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, + struct drm_file *file_priv, + struct drm_nouveau_gem_pushbuf_bo *pbbo, + uint64_t user_buffers, int nr_buffers, + struct validate_op *op, int *apply_relocs) +{ + struct nouveau_cli *cli = nouveau_cli(file_priv); + int ret, relocs = 0; + + INIT_LIST_HEAD(&op->vram_list); + INIT_LIST_HEAD(&op->gart_list); + INIT_LIST_HEAD(&op->both_list); + + if (nr_buffers == 0) + return 0; + + ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); + if (unlikely(ret)) { + if (ret != -ERESTARTSYS) + NV_ERROR(cli, "validate_init\n"); + return ret; + } + + ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers); + if (unlikely(ret < 0)) { + if (ret != -ERESTARTSYS) + NV_ERROR(cli, "validate vram_list\n"); + validate_fini(op, NULL); + return ret; + } + relocs += ret; + + ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers); + if (unlikely(ret < 0)) { + if (ret != -ERESTARTSYS) + NV_ERROR(cli, "validate gart_list\n"); + validate_fini(op, NULL); + return ret; + } + relocs += ret; + + ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers); + if (unlikely(ret < 0)) { + if (ret != -ERESTARTSYS) + NV_ERROR(cli, "validate both_list\n"); + validate_fini(op, NULL); + return ret; + } + relocs += ret; + + *apply_relocs = relocs; + return 0; +} + +static inline void * +u_memcpya(uint64_t user, unsigned nmemb, unsigned size) +{ + void *mem; + void __user *userptr = (void __force __user *)(uintptr_t)user; + + mem = kmalloc(nmemb * size, GFP_KERNEL); + if (!mem) + return ERR_PTR(-ENOMEM); + + if (DRM_COPY_FROM_USER(mem, userptr, nmemb * size)) { + kfree(mem); + return ERR_PTR(-EFAULT); + } + + return mem; +} + +static int +nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli, + struct drm_nouveau_gem_pushbuf *req, + struct drm_nouveau_gem_pushbuf_bo *bo) +{ + struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; + int ret = 0; + unsigned i; + + reloc = u_memcpya(req->relocs, req->nr_relocs, sizeof(*reloc)); + if (IS_ERR(reloc)) + return PTR_ERR(reloc); + + for (i = 0; i < req->nr_relocs; i++) { + struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; + struct drm_nouveau_gem_pushbuf_bo *b; + struct nouveau_bo *nvbo; + uint32_t data; + + if (unlikely(r->bo_index > req->nr_buffers)) { + NV_ERROR(cli, "reloc bo index invalid\n"); + ret = -EINVAL; + break; + } + + b = &bo[r->bo_index]; + if (b->presumed.valid) + continue; + + if (unlikely(r->reloc_bo_index > req->nr_buffers)) { + NV_ERROR(cli, "reloc container bo index invalid\n"); + ret = -EINVAL; + break; + } + nvbo = (void *)(unsigned long)bo[r->reloc_bo_index].user_priv; + + if (unlikely(r->reloc_bo_offset + 4 > + nvbo->bo.mem.num_pages << PAGE_SHIFT)) { + NV_ERROR(cli, "reloc outside of bo\n"); + ret = -EINVAL; + break; + } + + if (!nvbo->kmap.virtual) { + ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, + &nvbo->kmap); + if (ret) { + NV_ERROR(cli, "failed kmap for reloc\n"); + break; + } + nvbo->validate_mapped = true; + } + + if (r->flags & NOUVEAU_GEM_RELOC_LOW) + data = b->presumed.offset + r->data; + else + if (r->flags & NOUVEAU_GEM_RELOC_HIGH) + data = (b->presumed.offset + r->data) >> 32; + else + data = r->data; + + if (r->flags & NOUVEAU_GEM_RELOC_OR) { + if (b->presumed.domain == NOUVEAU_GEM_DOMAIN_GART) + data |= r->tor; + else + data |= r->vor; + } + + spin_lock(&nvbo->bo.bdev->fence_lock); + ret = ttm_bo_wait(&nvbo->bo, false, false, false); + spin_unlock(&nvbo->bo.bdev->fence_lock); + if (ret) { + NV_ERROR(cli, "reloc wait_idle failed: %d\n", ret); + break; + } + + nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data); + } + + kfree(reloc); + return ret; +} + +int +nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev); + struct nouveau_cli *cli = nouveau_cli(file_priv); + struct nouveau_abi16_chan *temp; + struct nouveau_drm *drm = nouveau_drm(dev); + struct drm_nouveau_gem_pushbuf *req = data; + struct drm_nouveau_gem_pushbuf_push *push; + struct drm_nouveau_gem_pushbuf_bo *bo; + struct nouveau_channel *chan = NULL; + struct validate_op op; + struct nouveau_fence *fence = NULL; + int i, j, ret = 0, do_reloc = 0; + + if (unlikely(!abi16)) + return -ENOMEM; + + list_for_each_entry(temp, &abi16->channels, head) { + if (temp->chan->handle == (NVDRM_CHAN | req->channel)) { + chan = temp->chan; + break; + } + } + + if (!chan) + return nouveau_abi16_put(abi16, -ENOENT); + + req->vram_available = drm->gem.vram_available; + req->gart_available = drm->gem.gart_available; + if (unlikely(req->nr_push == 0)) + goto out_next; + + if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { + NV_ERROR(cli, "pushbuf push count exceeds limit: %d max %d\n", + req->nr_push, NOUVEAU_GEM_MAX_PUSH); + return nouveau_abi16_put(abi16, -EINVAL); + } + + if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { + NV_ERROR(cli, "pushbuf bo count exceeds limit: %d max %d\n", + req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); + return nouveau_abi16_put(abi16, -EINVAL); + } + + if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { + NV_ERROR(cli, "pushbuf reloc count exceeds limit: %d max %d\n", + req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); + return nouveau_abi16_put(abi16, -EINVAL); + } + + push = u_memcpya(req->push, req->nr_push, sizeof(*push)); + if (IS_ERR(push)) + return nouveau_abi16_put(abi16, PTR_ERR(push)); + + bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); + if (IS_ERR(bo)) { + kfree(push); + return nouveau_abi16_put(abi16, PTR_ERR(bo)); + } + + /* Ensure all push buffers are on validate list */ + for (i = 0; i < req->nr_push; i++) { + if (push[i].bo_index >= req->nr_buffers) { + NV_ERROR(cli, "push %d buffer not in list\n", i); + ret = -EINVAL; + goto out_prevalid; + } + } + + /* Validate buffer list */ + ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, + req->nr_buffers, &op, &do_reloc); + if (ret) { + if (ret != -ERESTARTSYS) + NV_ERROR(cli, "validate: %d\n", ret); + goto out_prevalid; + } + + /* Apply any relocations that are required */ + if (do_reloc) { + ret = nouveau_gem_pushbuf_reloc_apply(cli, req, bo); + if (ret) { + NV_ERROR(cli, "reloc apply: %d\n", ret); + goto out; + } + } + + if (chan->dma.ib_max) { + ret = nouveau_dma_wait(chan, req->nr_push + 1, 16); + if (ret) { + NV_ERROR(cli, "nv50cal_space: %d\n", ret); + goto out; + } + + for (i = 0; i < req->nr_push; i++) { + struct nouveau_bo *nvbo = (void *)(unsigned long) + bo[push[i].bo_index].user_priv; + + nv50_dma_push(chan, nvbo, push[i].offset, + push[i].length); + } + } else + if (nv_device(drm->device)->chipset >= 0x25) { + ret = RING_SPACE(chan, req->nr_push * 2); + if (ret) { + NV_ERROR(cli, "cal_space: %d\n", ret); + goto out; + } + + for (i = 0; i < req->nr_push; i++) { + struct nouveau_bo *nvbo = (void *)(unsigned long) + bo[push[i].bo_index].user_priv; + + OUT_RING(chan, (nvbo->bo.offset + push[i].offset) | 2); + OUT_RING(chan, 0); + } + } else { + ret = RING_SPACE(chan, req->nr_push * (2 + NOUVEAU_DMA_SKIPS)); + if (ret) { + NV_ERROR(cli, "jmp_space: %d\n", ret); + goto out; + } + + for (i = 0; i < req->nr_push; i++) { + struct nouveau_bo *nvbo = (void *)(unsigned long) + bo[push[i].bo_index].user_priv; + uint32_t cmd; + + cmd = chan->push.vma.offset + ((chan->dma.cur + 2) << 2); + cmd |= 0x20000000; + if (unlikely(cmd != req->suffix0)) { + if (!nvbo->kmap.virtual) { + ret = ttm_bo_kmap(&nvbo->bo, 0, + nvbo->bo.mem. + num_pages, + &nvbo->kmap); + if (ret) { + WIND_RING(chan); + goto out; + } + nvbo->validate_mapped = true; + } + + nouveau_bo_wr32(nvbo, (push[i].offset + + push[i].length - 8) / 4, cmd); + } + + OUT_RING(chan, 0x20000000 | + (nvbo->bo.offset + push[i].offset)); + OUT_RING(chan, 0); + for (j = 0; j < NOUVEAU_DMA_SKIPS; j++) + OUT_RING(chan, 0); + } + } + + ret = nouveau_fence_new(chan, false, &fence); + if (ret) { + NV_ERROR(cli, "error fencing pushbuf: %d\n", ret); + WIND_RING(chan); + goto out; + } + +out: + validate_fini(&op, fence); + nouveau_fence_unref(&fence); + +out_prevalid: + kfree(bo); + kfree(push); + +out_next: + if (chan->dma.ib_max) { + req->suffix0 = 0x00000000; + req->suffix1 = 0x00000000; + } else + if (nv_device(drm->device)->chipset >= 0x25) { + req->suffix0 = 0x00020000; + req->suffix1 = 0x00000000; + } else { + req->suffix0 = 0x20000000 | + (chan->push.vma.offset + ((chan->dma.cur + 2) << 2)); + req->suffix1 = 0x00000000; + } + + return nouveau_abi16_put(abi16, ret); +} + +static inline uint32_t +domain_to_ttm(struct nouveau_bo *nvbo, uint32_t domain) +{ + uint32_t flags = 0; + + if (domain & NOUVEAU_GEM_DOMAIN_VRAM) + flags |= TTM_PL_FLAG_VRAM; + if (domain & NOUVEAU_GEM_DOMAIN_GART) + flags |= TTM_PL_FLAG_TT; + + return flags; +} + +int +nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_nouveau_gem_cpu_prep *req = data; + struct drm_gem_object *gem; + struct nouveau_bo *nvbo; + bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT); + int ret = -EINVAL; + + gem = drm_gem_object_lookup(dev, file_priv, req->handle); + if (!gem) + return -ENOENT; + nvbo = nouveau_gem_object(gem); + + spin_lock(&nvbo->bo.bdev->fence_lock); + ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait); + spin_unlock(&nvbo->bo.bdev->fence_lock); + drm_gem_object_unreference_unlocked(gem); + return ret; +} + +int +nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + return 0; +} + +int +nouveau_gem_ioctl_info(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_nouveau_gem_info *req = data; + struct drm_gem_object *gem; + int ret; + + gem = drm_gem_object_lookup(dev, file_priv, req->handle); + if (!gem) + return -ENOENT; + + ret = nouveau_gem_info(file_priv, gem, req); + drm_gem_object_unreference_unlocked(gem); + return ret; +} + |