| /* |
| * 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 "drmP.h" |
| #include "drm.h" |
| |
| #include "nouveau_drv.h" |
| #include "nouveau_drm.h" |
| #include "nouveau_dma.h" |
| |
| #define nouveau_gem_pushbuf_sync(chan) 0 |
| |
| 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->cpu_filp)) |
| ttm_bo_synccpu_write_release(bo); |
| |
| if (unlikely(nvbo->pin_refcnt)) { |
| nvbo->pin_refcnt = 1; |
| nouveau_bo_unpin(nvbo); |
| } |
| |
| ttm_bo_unref(&bo); |
| } |
| |
| int |
| nouveau_gem_new(struct drm_device *dev, struct nouveau_channel *chan, |
| int size, int align, uint32_t flags, uint32_t tile_mode, |
| uint32_t tile_flags, bool no_vm, bool mappable, |
| struct nouveau_bo **pnvbo) |
| { |
| struct nouveau_bo *nvbo; |
| int ret; |
| |
| ret = nouveau_bo_new(dev, chan, size, align, flags, tile_mode, |
| tile_flags, no_vm, mappable, pnvbo); |
| if (ret) |
| return ret; |
| nvbo = *pnvbo; |
| |
| nvbo->gem = drm_gem_object_alloc(dev, nvbo->bo.mem.size); |
| if (!nvbo->gem) { |
| nouveau_bo_ref(NULL, pnvbo); |
| return -ENOMEM; |
| } |
| |
| nvbo->bo.persistant_swap_storage = nvbo->gem->filp; |
| nvbo->gem->driver_private = nvbo; |
| return 0; |
| } |
| |
| static int |
| nouveau_gem_info(struct drm_gem_object *gem, struct drm_nouveau_gem_info *rep) |
| { |
| struct nouveau_bo *nvbo = nouveau_gem_object(gem); |
| |
| if (nvbo->bo.mem.mem_type == TTM_PL_TT) |
| rep->domain = NOUVEAU_GEM_DOMAIN_GART; |
| else |
| rep->domain = NOUVEAU_GEM_DOMAIN_VRAM; |
| |
| rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT; |
| rep->offset = nvbo->bo.offset; |
| rep->map_handle = nvbo->mappable ? nvbo->bo.addr_space_offset : 0; |
| rep->tile_mode = nvbo->tile_mode; |
| rep->tile_flags = nvbo->tile_flags; |
| return 0; |
| } |
| |
| static bool |
| nouveau_gem_tile_flags_valid(struct drm_device *dev, uint32_t tile_flags) { |
| switch (tile_flags) { |
| case 0x0000: |
| case 0x1800: |
| case 0x2800: |
| case 0x4800: |
| case 0x7000: |
| case 0x7400: |
| case 0x7a00: |
| case 0xe000: |
| break; |
| default: |
| NV_ERROR(dev, "bad page flags: 0x%08x\n", tile_flags); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| int |
| nouveau_gem_ioctl_new(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct drm_nouveau_gem_new *req = data; |
| struct nouveau_bo *nvbo = NULL; |
| struct nouveau_channel *chan = NULL; |
| uint32_t flags = 0; |
| int ret = 0; |
| |
| NOUVEAU_CHECK_INITIALISED_WITH_RETURN; |
| |
| if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL)) |
| dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping; |
| |
| if (req->channel_hint) { |
| NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint, |
| file_priv, chan); |
| } |
| |
| if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM) |
| flags |= TTM_PL_FLAG_VRAM; |
| if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART) |
| flags |= TTM_PL_FLAG_TT; |
| if (!flags || req->info.domain & NOUVEAU_GEM_DOMAIN_CPU) |
| flags |= TTM_PL_FLAG_SYSTEM; |
| |
| if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags)) |
| return -EINVAL; |
| |
| ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags, |
| req->info.tile_mode, req->info.tile_flags, false, |
| (req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE), |
| &nvbo); |
| if (ret) |
| return ret; |
| |
| ret = nouveau_gem_info(nvbo->gem, &req->info); |
| if (ret) |
| goto out; |
| |
| ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle); |
| out: |
| mutex_lock(&dev->struct_mutex); |
| drm_gem_object_handle_unreference(nvbo->gem); |
| mutex_unlock(&dev->struct_mutex); |
| |
| if (ret) |
| drm_gem_object_unreference(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; |
| uint64_t flags; |
| |
| if (!valid_domains || (!read_domains && !write_domains)) |
| return -EINVAL; |
| |
| if (write_domains) { |
| if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && |
| (write_domains & NOUVEAU_GEM_DOMAIN_VRAM)) |
| flags = TTM_PL_FLAG_VRAM; |
| else |
| if ((valid_domains & NOUVEAU_GEM_DOMAIN_GART) && |
| (write_domains & NOUVEAU_GEM_DOMAIN_GART)) |
| flags = TTM_PL_FLAG_TT; |
| else |
| return -EINVAL; |
| } else { |
| if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && |
| (read_domains & NOUVEAU_GEM_DOMAIN_VRAM) && |
| bo->mem.mem_type == TTM_PL_VRAM) |
| flags = TTM_PL_FLAG_VRAM; |
| else |
| if ((valid_domains & NOUVEAU_GEM_DOMAIN_GART) && |
| (read_domains & NOUVEAU_GEM_DOMAIN_GART) && |
| bo->mem.mem_type == TTM_PL_TT) |
| flags = TTM_PL_FLAG_TT; |
| else |
| if ((valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && |
| (read_domains & NOUVEAU_GEM_DOMAIN_VRAM)) |
| flags = TTM_PL_FLAG_VRAM; |
| else |
| flags = TTM_PL_FLAG_TT; |
| } |
| |
| nouveau_bo_placement_set(nvbo, flags); |
| return 0; |
| } |
| |
| struct validate_op { |
| struct nouveau_fence *fence; |
| 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); |
| if (likely(fence)) { |
| struct nouveau_fence *prev_fence; |
| |
| spin_lock(&nvbo->bo.lock); |
| prev_fence = nvbo->bo.sync_obj; |
| nvbo->bo.sync_obj = nouveau_fence_ref(fence); |
| spin_unlock(&nvbo->bo.lock); |
| nouveau_fence_unref((void *)&prev_fence); |
| } |
| |
| list_del(&nvbo->entry); |
| nvbo->reserved_by = NULL; |
| ttm_bo_unreserve(&nvbo->bo); |
| drm_gem_object_unreference(nvbo->gem); |
| } |
| } |
| |
| static void |
| validate_fini(struct validate_op *op, bool success) |
| { |
| struct nouveau_fence *fence = op->fence; |
| |
| if (unlikely(!success)) |
| op->fence = NULL; |
| |
| validate_fini_list(&op->vram_list, op->fence); |
| validate_fini_list(&op->gart_list, op->fence); |
| validate_fini_list(&op->both_list, op->fence); |
| nouveau_fence_unref((void *)&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 drm_device *dev = chan->dev; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| uint32_t sequence; |
| int trycnt = 0; |
| int ret, i; |
| |
| sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence); |
| retry: |
| if (++trycnt > 100000) { |
| NV_ERROR(dev, "%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(dev, "Unknown handle 0x%08x\n", b->handle); |
| validate_fini(op, NULL); |
| return -EINVAL; |
| } |
| nvbo = gem->driver_private; |
| |
| if (nvbo->reserved_by && nvbo->reserved_by == file_priv) { |
| NV_ERROR(dev, "multiple instances of buffer %d on " |
| "validation list\n", b->handle); |
| validate_fini(op, NULL); |
| return -EINVAL; |
| } |
| |
| ret = ttm_bo_reserve(&nvbo->bo, false, false, true, sequence); |
| if (ret) { |
| validate_fini(op, NULL); |
| if (ret == -EAGAIN) |
| ret = ttm_bo_wait_unreserved(&nvbo->bo, false); |
| drm_gem_object_unreference(gem); |
| if (ret) |
| return ret; |
| goto retry; |
| } |
| |
| 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(dev, "invalid valid domains: 0x%08x\n", |
| b->valid_domains); |
| validate_fini(op, NULL); |
| return -EINVAL; |
| } |
| |
| if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) { |
| validate_fini(op, NULL); |
| |
| if (nvbo->cpu_filp == file_priv) { |
| NV_ERROR(dev, "bo %p mapped by process trying " |
| "to validate it!\n", nvbo); |
| return -EINVAL; |
| } |
| |
| ret = ttm_bo_wait_cpu(&nvbo->bo, false); |
| if (ret) |
| return ret; |
| goto retry; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int |
| validate_list(struct nouveau_channel *chan, struct list_head *list, |
| struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr) |
| { |
| 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]; |
| struct nouveau_fence *prev_fence = nvbo->bo.sync_obj; |
| |
| if (prev_fence && nouveau_fence_channel(prev_fence) != chan) { |
| spin_lock(&nvbo->bo.lock); |
| ret = ttm_bo_wait(&nvbo->bo, false, false, false); |
| spin_unlock(&nvbo->bo.lock); |
| if (unlikely(ret)) |
| return ret; |
| } |
| |
| ret = nouveau_gem_set_domain(nvbo->gem, b->read_domains, |
| b->write_domains, |
| b->valid_domains); |
| if (unlikely(ret)) |
| return ret; |
| |
| nvbo->channel = chan; |
| ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, |
| false, false); |
| nvbo->channel = NULL; |
| if (unlikely(ret)) |
| return ret; |
| |
| 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_ok = 0; |
| relocs++; |
| |
| if (DRM_COPY_TO_USER(&upbbo[nvbo->pbbo_index], b, sizeof(*b))) |
| 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) |
| { |
| int ret, relocs = 0; |
| |
| INIT_LIST_HEAD(&op->vram_list); |
| INIT_LIST_HEAD(&op->gart_list); |
| INIT_LIST_HEAD(&op->both_list); |
| |
| ret = nouveau_fence_new(chan, &op->fence, false); |
| if (ret) |
| return ret; |
| |
| if (nr_buffers == 0) |
| return 0; |
| |
| ret = validate_init(chan, file_priv, pbbo, nr_buffers, op); |
| if (unlikely(ret)) |
| return ret; |
| |
| ret = validate_list(chan, &op->vram_list, pbbo, user_buffers); |
| if (unlikely(ret < 0)) { |
| validate_fini(op, NULL); |
| return ret; |
| } |
| relocs += ret; |
| |
| ret = validate_list(chan, &op->gart_list, pbbo, user_buffers); |
| if (unlikely(ret < 0)) { |
| validate_fini(op, NULL); |
| return ret; |
| } |
| relocs += ret; |
| |
| ret = validate_list(chan, &op->both_list, pbbo, user_buffers); |
| if (unlikely(ret < 0)) { |
| 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_channel *chan, int nr_bo, |
| struct drm_nouveau_gem_pushbuf_bo *bo, |
| int nr_relocs, uint64_t ptr_relocs, |
| int nr_dwords, int first_dword, |
| uint32_t *pushbuf, bool is_iomem) |
| { |
| struct drm_nouveau_gem_pushbuf_reloc *reloc = NULL; |
| struct drm_device *dev = chan->dev; |
| int ret = 0, i; |
| |
| reloc = u_memcpya(ptr_relocs, nr_relocs, sizeof(*reloc)); |
| if (IS_ERR(reloc)) |
| return PTR_ERR(reloc); |
| |
| for (i = 0; i < nr_relocs; i++) { |
| struct drm_nouveau_gem_pushbuf_reloc *r = &reloc[i]; |
| struct drm_nouveau_gem_pushbuf_bo *b; |
| uint32_t data; |
| |
| if (r->bo_index >= nr_bo || r->reloc_index < first_dword || |
| r->reloc_index >= first_dword + nr_dwords) { |
| NV_ERROR(dev, "Bad relocation %d\n", i); |
| NV_ERROR(dev, " bo: %d max %d\n", r->bo_index, nr_bo); |
| NV_ERROR(dev, " id: %d max %d\n", r->reloc_index, nr_dwords); |
| ret = -EINVAL; |
| break; |
| } |
| |
| b = &bo[r->bo_index]; |
| if (b->presumed_ok) |
| continue; |
| |
| 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; |
| } |
| |
| if (is_iomem) |
| iowrite32_native(data, (void __force __iomem *) |
| &pushbuf[r->reloc_index]); |
| else |
| pushbuf[r->reloc_index] = data; |
| } |
| |
| kfree(reloc); |
| return ret; |
| } |
| |
| int |
| nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_nouveau_gem_pushbuf *req = data; |
| struct drm_nouveau_gem_pushbuf_bo *bo = NULL; |
| struct nouveau_channel *chan; |
| struct validate_op op; |
| uint32_t *pushbuf = NULL; |
| int ret = 0, do_reloc = 0, i; |
| |
| NOUVEAU_CHECK_INITIALISED_WITH_RETURN; |
| NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan); |
| |
| if (req->nr_dwords >= chan->dma.max || |
| req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS || |
| req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS) { |
| NV_ERROR(dev, "Pushbuf config exceeds limits:\n"); |
| NV_ERROR(dev, " dwords : %d max %d\n", req->nr_dwords, |
| chan->dma.max - 1); |
| NV_ERROR(dev, " buffers: %d max %d\n", req->nr_buffers, |
| NOUVEAU_GEM_MAX_BUFFERS); |
| NV_ERROR(dev, " relocs : %d max %d\n", req->nr_relocs, |
| NOUVEAU_GEM_MAX_RELOCS); |
| return -EINVAL; |
| } |
| |
| pushbuf = u_memcpya(req->dwords, req->nr_dwords, sizeof(uint32_t)); |
| if (IS_ERR(pushbuf)) |
| return PTR_ERR(pushbuf); |
| |
| bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); |
| if (IS_ERR(bo)) { |
| kfree(pushbuf); |
| return PTR_ERR(bo); |
| } |
| |
| mutex_lock(&dev->struct_mutex); |
| |
| /* Validate buffer list */ |
| ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, |
| req->nr_buffers, &op, &do_reloc); |
| if (ret) |
| goto out; |
| |
| /* Apply any relocations that are required */ |
| if (do_reloc) { |
| ret = nouveau_gem_pushbuf_reloc_apply(chan, req->nr_buffers, |
| bo, req->nr_relocs, |
| req->relocs, |
| req->nr_dwords, 0, |
| pushbuf, false); |
| if (ret) |
| goto out; |
| } |
| |
| /* Emit push buffer to the hw |
| */ |
| ret = RING_SPACE(chan, req->nr_dwords); |
| if (ret) |
| goto out; |
| |
| OUT_RINGp(chan, pushbuf, req->nr_dwords); |
| |
| ret = nouveau_fence_emit(op.fence); |
| if (ret) { |
| NV_ERROR(dev, "error fencing pushbuf: %d\n", ret); |
| WIND_RING(chan); |
| goto out; |
| } |
| |
| if (nouveau_gem_pushbuf_sync(chan)) { |
| ret = nouveau_fence_wait(op.fence, NULL, false, false); |
| if (ret) { |
| for (i = 0; i < req->nr_dwords; i++) |
| NV_ERROR(dev, "0x%08x\n", pushbuf[i]); |
| NV_ERROR(dev, "^^ above push buffer is fail :(\n"); |
| } |
| } |
| |
| out: |
| validate_fini(&op, ret == 0); |
| mutex_unlock(&dev->struct_mutex); |
| kfree(pushbuf); |
| kfree(bo); |
| return ret; |
| } |
| |
| #define PUSHBUF_CAL (dev_priv->card_type >= NV_20) |
| |
| int |
| nouveau_gem_ioctl_pushbuf_call(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct drm_nouveau_gem_pushbuf_call *req = data; |
| struct drm_nouveau_gem_pushbuf_bo *bo = NULL; |
| struct nouveau_channel *chan; |
| struct drm_gem_object *gem; |
| struct nouveau_bo *pbbo; |
| struct validate_op op; |
| int i, ret = 0, do_reloc = 0; |
| |
| NOUVEAU_CHECK_INITIALISED_WITH_RETURN; |
| NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan); |
| |
| if (unlikely(req->handle == 0)) |
| goto out_next; |
| |
| if (req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS || |
| req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS) { |
| NV_ERROR(dev, "Pushbuf config exceeds limits:\n"); |
| NV_ERROR(dev, " buffers: %d max %d\n", req->nr_buffers, |
| NOUVEAU_GEM_MAX_BUFFERS); |
| NV_ERROR(dev, " relocs : %d max %d\n", req->nr_relocs, |
| NOUVEAU_GEM_MAX_RELOCS); |
| return -EINVAL; |
| } |
| |
| bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); |
| if (IS_ERR(bo)) |
| return PTR_ERR(bo); |
| |
| mutex_lock(&dev->struct_mutex); |
| |
| /* Validate buffer list */ |
| ret = nouveau_gem_pushbuf_validate(chan, file_priv, bo, req->buffers, |
| req->nr_buffers, &op, &do_reloc); |
| if (ret) { |
| NV_ERROR(dev, "validate: %d\n", ret); |
| goto out; |
| } |
| |
| /* Validate DMA push buffer */ |
| gem = drm_gem_object_lookup(dev, file_priv, req->handle); |
| if (!gem) { |
| NV_ERROR(dev, "Unknown pb handle 0x%08x\n", req->handle); |
| ret = -EINVAL; |
| goto out; |
| } |
| pbbo = nouveau_gem_object(gem); |
| |
| ret = ttm_bo_reserve(&pbbo->bo, false, false, true, |
| chan->fence.sequence); |
| if (ret) { |
| NV_ERROR(dev, "resv pb: %d\n", ret); |
| drm_gem_object_unreference(gem); |
| goto out; |
| } |
| |
| nouveau_bo_placement_set(pbbo, 1 << chan->pushbuf_bo->bo.mem.mem_type); |
| ret = ttm_bo_validate(&pbbo->bo, &pbbo->placement, false, false); |
| if (ret) { |
| NV_ERROR(dev, "validate pb: %d\n", ret); |
| ttm_bo_unreserve(&pbbo->bo); |
| drm_gem_object_unreference(gem); |
| goto out; |
| } |
| |
| list_add_tail(&pbbo->entry, &op.both_list); |
| |
| /* If presumed return address doesn't match, we need to map the |
| * push buffer and fix it.. |
| */ |
| if (!PUSHBUF_CAL) { |
| uint32_t retaddy; |
| |
| if (chan->dma.free < 4 + NOUVEAU_DMA_SKIPS) { |
| ret = nouveau_dma_wait(chan, 4 + NOUVEAU_DMA_SKIPS); |
| if (ret) { |
| NV_ERROR(dev, "jmp_space: %d\n", ret); |
| goto out; |
| } |
| } |
| |
| retaddy = chan->pushbuf_base + ((chan->dma.cur + 2) << 2); |
| retaddy |= 0x20000000; |
| if (retaddy != req->suffix0) { |
| req->suffix0 = retaddy; |
| do_reloc = 1; |
| } |
| } |
| |
| /* Apply any relocations that are required */ |
| if (do_reloc) { |
| void *pbvirt; |
| bool is_iomem; |
| ret = ttm_bo_kmap(&pbbo->bo, 0, pbbo->bo.mem.num_pages, |
| &pbbo->kmap); |
| if (ret) { |
| NV_ERROR(dev, "kmap pb: %d\n", ret); |
| goto out; |
| } |
| |
| pbvirt = ttm_kmap_obj_virtual(&pbbo->kmap, &is_iomem); |
| ret = nouveau_gem_pushbuf_reloc_apply(chan, req->nr_buffers, bo, |
| req->nr_relocs, |
| req->relocs, |
| req->nr_dwords, |
| req->offset / 4, |
| pbvirt, is_iomem); |
| |
| if (!PUSHBUF_CAL) { |
| nouveau_bo_wr32(pbbo, |
| req->offset / 4 + req->nr_dwords - 2, |
| req->suffix0); |
| } |
| |
| ttm_bo_kunmap(&pbbo->kmap); |
| if (ret) { |
| NV_ERROR(dev, "reloc apply: %d\n", ret); |
| goto out; |
| } |
| } |
| |
| if (PUSHBUF_CAL) { |
| ret = RING_SPACE(chan, 2); |
| if (ret) { |
| NV_ERROR(dev, "cal_space: %d\n", ret); |
| goto out; |
| } |
| OUT_RING(chan, ((pbbo->bo.mem.mm_node->start << PAGE_SHIFT) + |
| req->offset) | 2); |
| OUT_RING(chan, 0); |
| } else { |
| ret = RING_SPACE(chan, 2 + NOUVEAU_DMA_SKIPS); |
| if (ret) { |
| NV_ERROR(dev, "jmp_space: %d\n", ret); |
| goto out; |
| } |
| OUT_RING(chan, ((pbbo->bo.mem.mm_node->start << PAGE_SHIFT) + |
| req->offset) | 0x20000000); |
| OUT_RING(chan, 0); |
| |
| /* Space the jumps apart with NOPs. */ |
| for (i = 0; i < NOUVEAU_DMA_SKIPS; i++) |
| OUT_RING(chan, 0); |
| } |
| |
| ret = nouveau_fence_emit(op.fence); |
| if (ret) { |
| NV_ERROR(dev, "error fencing pushbuf: %d\n", ret); |
| WIND_RING(chan); |
| goto out; |
| } |
| |
| out: |
| validate_fini(&op, ret == 0); |
| mutex_unlock(&dev->struct_mutex); |
| kfree(bo); |
| |
| out_next: |
| if (PUSHBUF_CAL) { |
| req->suffix0 = 0x00020000; |
| req->suffix1 = 0x00000000; |
| } else { |
| req->suffix0 = 0x20000000 | |
| (chan->pushbuf_base + ((chan->dma.cur + 2) << 2)); |
| req->suffix1 = 0x00000000; |
| } |
| |
| return ret; |
| } |
| |
| int |
| nouveau_gem_ioctl_pushbuf_call2(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct drm_nouveau_gem_pushbuf_call *req = data; |
| |
| req->vram_available = dev_priv->fb_aper_free; |
| req->gart_available = dev_priv->gart_info.aper_free; |
| |
| return nouveau_gem_ioctl_pushbuf_call(dev, data, file_priv); |
| } |
| |
| 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_pin(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_nouveau_gem_pin *req = data; |
| struct drm_gem_object *gem; |
| struct nouveau_bo *nvbo; |
| int ret = 0; |
| |
| NOUVEAU_CHECK_INITIALISED_WITH_RETURN; |
| |
| if (drm_core_check_feature(dev, DRIVER_MODESET)) { |
| NV_ERROR(dev, "pin only allowed without kernel modesetting\n"); |
| return -EINVAL; |
| } |
| |
| if (!DRM_SUSER(DRM_CURPROC)) |
| return -EPERM; |
| |
| gem = drm_gem_object_lookup(dev, file_priv, req->handle); |
| if (!gem) |
| return -EINVAL; |
| nvbo = nouveau_gem_object(gem); |
| |
| ret = nouveau_bo_pin(nvbo, domain_to_ttm(nvbo, req->domain)); |
| if (ret) |
| goto out; |
| |
| req->offset = nvbo->bo.offset; |
| if (nvbo->bo.mem.mem_type == TTM_PL_TT) |
| req->domain = NOUVEAU_GEM_DOMAIN_GART; |
| else |
| req->domain = NOUVEAU_GEM_DOMAIN_VRAM; |
| |
| out: |
| mutex_lock(&dev->struct_mutex); |
| drm_gem_object_unreference(gem); |
| mutex_unlock(&dev->struct_mutex); |
| |
| return ret; |
| } |
| |
| int |
| nouveau_gem_ioctl_unpin(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_nouveau_gem_pin *req = data; |
| struct drm_gem_object *gem; |
| int ret; |
| |
| NOUVEAU_CHECK_INITIALISED_WITH_RETURN; |
| |
| if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| return -EINVAL; |
| |
| gem = drm_gem_object_lookup(dev, file_priv, req->handle); |
| if (!gem) |
| return -EINVAL; |
| |
| ret = nouveau_bo_unpin(nouveau_gem_object(gem)); |
| |
| mutex_lock(&dev->struct_mutex); |
| drm_gem_object_unreference(gem); |
| mutex_unlock(&dev->struct_mutex); |
| |
| return ret; |
| } |
| |
| 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; |
| |
| NOUVEAU_CHECK_INITIALISED_WITH_RETURN; |
| |
| gem = drm_gem_object_lookup(dev, file_priv, req->handle); |
| if (!gem) |
| return ret; |
| nvbo = nouveau_gem_object(gem); |
| |
| if (nvbo->cpu_filp) { |
| if (nvbo->cpu_filp == file_priv) |
| goto out; |
| |
| ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait); |
| if (ret) |
| goto out; |
| } |
| |
| if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) { |
| ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait); |
| } else { |
| ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait); |
| if (ret == 0) |
| nvbo->cpu_filp = file_priv; |
| } |
| |
| out: |
| mutex_lock(&dev->struct_mutex); |
| drm_gem_object_unreference(gem); |
| mutex_unlock(&dev->struct_mutex); |
| return ret; |
| } |
| |
| int |
| nouveau_gem_ioctl_cpu_fini(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; |
| int ret = -EINVAL; |
| |
| NOUVEAU_CHECK_INITIALISED_WITH_RETURN; |
| |
| gem = drm_gem_object_lookup(dev, file_priv, req->handle); |
| if (!gem) |
| return ret; |
| nvbo = nouveau_gem_object(gem); |
| |
| if (nvbo->cpu_filp != file_priv) |
| goto out; |
| nvbo->cpu_filp = NULL; |
| |
| ttm_bo_synccpu_write_release(&nvbo->bo); |
| ret = 0; |
| |
| out: |
| mutex_lock(&dev->struct_mutex); |
| drm_gem_object_unreference(gem); |
| mutex_unlock(&dev->struct_mutex); |
| return ret; |
| } |
| |
| 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; |
| |
| NOUVEAU_CHECK_INITIALISED_WITH_RETURN; |
| |
| gem = drm_gem_object_lookup(dev, file_priv, req->handle); |
| if (!gem) |
| return -EINVAL; |
| |
| ret = nouveau_gem_info(gem, req); |
| mutex_lock(&dev->struct_mutex); |
| drm_gem_object_unreference(gem); |
| mutex_unlock(&dev->struct_mutex); |
| return ret; |
| } |
| |