--- /dev/null
+/*
+ * 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 "nouveau_drm.h"
+#include "nouveau_dma.h"
+#include "nouveau_fence.h"
+#include "nouveau_abi16.h"
+
+#include "nouveau_ttm.h"
+#include "nouveau_gem.h"
+
+void
+nouveau_gem_object_del(struct drm_gem_object *gem)
+{
+ struct nouveau_bo *nvbo = nouveau_gem_object(gem);
+ struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
+ struct ttm_buffer_object *bo = &nvbo->bo;
+ struct device *dev = drm->dev->dev;
+ int ret;
+
+ ret = pm_runtime_get_sync(dev);
+ if (WARN_ON(ret < 0 && ret != -EACCES))
+ return;
+
+ if (gem->import_attach)
+ drm_prime_gem_destroy(gem, nvbo->bo.sg);
+
+ drm_gem_object_release(gem);
+
+ /* reset filp so nouveau_bo_del_ttm() can test for it */
+ gem->filp = NULL;
+ ttm_bo_unref(&bo);
+
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+}
+
+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_drm *drm = nouveau_bdev(nvbo->bo.bdev);
+ struct nvkm_vma *vma;
+ struct device *dev = drm->dev->dev;
+ int ret;
+
+ if (!cli->vm)
+ return 0;
+
+ ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
+ if (ret)
+ return ret;
+
+ vma = nouveau_bo_vma_find(nvbo, cli->vm);
+ if (!vma) {
+ vma = kzalloc(sizeof(*vma), GFP_KERNEL);
+ if (!vma) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ret = pm_runtime_get_sync(dev);
+ if (ret < 0 && ret != -EACCES)
+ goto out;
+
+ ret = nouveau_bo_vma_add(nvbo, cli->vm, vma);
+ if (ret)
+ kfree(vma);
+
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+ } else {
+ vma->refcount++;
+ }
+
+out:
+ ttm_bo_unreserve(&nvbo->bo);
+ return ret;
+}
+
+static void
+nouveau_gem_object_delete(void *data)
+{
+ struct nvkm_vma *vma = data;
+ nvkm_vm_unmap(vma);
+ nvkm_vm_put(vma);
+ kfree(vma);
+}
+
+static void
+nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nvkm_vma *vma)
+{
+ const bool mapped = nvbo->bo.mem.mem_type != TTM_PL_SYSTEM;
+ struct reservation_object *resv = nvbo->bo.resv;
+ struct reservation_object_list *fobj;
+ struct fence *fence = NULL;
+
+ fobj = reservation_object_get_list(resv);
+
+ list_del(&vma->head);
+
+ if (fobj && fobj->shared_count > 1)
+ ttm_bo_wait(&nvbo->bo, true, false, false);
+ else if (fobj && fobj->shared_count == 1)
+ fence = rcu_dereference_protected(fobj->shared[0],
+ reservation_object_held(resv));
+ else
+ fence = reservation_object_get_excl(nvbo->bo.resv);
+
+ if (fence && mapped) {
+ nouveau_fence_work(fence, nouveau_gem_object_delete, vma);
+ } else {
+ if (mapped)
+ nvkm_vm_unmap(vma);
+ nvkm_vm_put(vma);
+ kfree(vma);
+ }
+}
+
+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_drm *drm = nouveau_bdev(nvbo->bo.bdev);
+ struct device *dev = drm->dev->dev;
+ struct nvkm_vma *vma;
+ int ret;
+
+ if (!cli->vm)
+ return;
+
+ ret = ttm_bo_reserve(&nvbo->bo, false, false, false, NULL);
+ if (ret)
+ return;
+
+ vma = nouveau_bo_vma_find(nvbo, cli->vm);
+ if (vma) {
+ if (--vma->refcount == 0) {
+ ret = pm_runtime_get_sync(dev);
+ if (!WARN_ON(ret < 0 && ret != -EACCES)) {
+ nouveau_gem_object_unmap(nvbo, vma);
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+ }
+ }
+ }
+ 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;
+
+ if (domain & NOUVEAU_GEM_DOMAIN_COHERENT)
+ flags |= TTM_PL_FLAG_UNCACHED;
+
+ ret = nouveau_bo_new(dev, size, align, flags, tile_mode,
+ tile_flags, NULL, 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 (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
+ nvbo->valid_domains &= domain;
+
+ /* Initialize the embedded gem-object. We return a single gem-reference
+ * to the caller, instead of a normal nouveau_bo ttm reference. */
+ ret = drm_gem_object_init(dev, &nvbo->gem, nvbo->bo.mem.size);
+ if (ret) {
+ nouveau_bo_ref(NULL, pnvbo);
+ return -ENOMEM;
+ }
+
+ nvbo->bo.persistent_swap_storage = nvbo->gem.filp;
+ 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 nvkm_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->vm) {
+ vma = nouveau_bo_vma_find(nvbo, cli->vm);
+ if (!vma)
+ return -EINVAL;
+
+ rep->offset = vma->offset;
+ }
+
+ rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
+ rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
+ 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 nvkm_fb *pfb = nvxx_fb(&drm->device);
+ struct drm_nouveau_gem_new *req = data;
+ struct nouveau_bo *nvbo = NULL;
+ int ret = 0;
+
+ if (!pfb->memtype_valid(pfb, req->info.tile_flags)) {
+ NV_PRINTK(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 = nouveau_gem_object(gem);
+ 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 list;
+ struct ww_acquire_ctx ticket;
+};
+
+static void
+validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence,
+ struct drm_nouveau_gem_pushbuf_bo *pbbo)
+{
+ struct nouveau_bo *nvbo;
+ struct drm_nouveau_gem_pushbuf_bo *b;
+
+ while (!list_empty(&op->list)) {
+ nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
+ b = &pbbo[nvbo->pbbo_index];
+
+ if (likely(fence))
+ nouveau_bo_fence(nvbo, fence, !!b->write_domains);
+
+ 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_ticket(&nvbo->bo, &op->ticket);
+ drm_gem_object_unreference_unlocked(&nvbo->gem);
+ }
+}
+
+static void
+validate_fini(struct validate_op *op, struct nouveau_fence *fence,
+ struct drm_nouveau_gem_pushbuf_bo *pbbo)
+{
+ validate_fini_no_ticket(op, fence, pbbo);
+ ww_acquire_fini(&op->ticket);
+}
+
+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;
+ int trycnt = 0;
+ int ret, i;
+ struct nouveau_bo *res_bo = NULL;
+ LIST_HEAD(gart_list);
+ LIST_HEAD(vram_list);
+ LIST_HEAD(both_list);
+
+ ww_acquire_init(&op->ticket, &reservation_ww_class);
+retry:
+ if (++trycnt > 100000) {
+ NV_PRINTK(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_PRINTK(error, cli, "Unknown handle 0x%08x\n", b->handle);
+ ret = -ENOENT;
+ break;
+ }
+ nvbo = nouveau_gem_object(gem);
+ if (nvbo == res_bo) {
+ res_bo = NULL;
+ drm_gem_object_unreference_unlocked(gem);
+ continue;
+ }
+
+ if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
+ NV_PRINTK(error, cli, "multiple instances of buffer %d on "
+ "validation list\n", b->handle);
+ drm_gem_object_unreference_unlocked(gem);
+ ret = -EINVAL;
+ break;
+ }
+
+ ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
+ if (ret) {
+ list_splice_tail_init(&vram_list, &op->list);
+ list_splice_tail_init(&gart_list, &op->list);
+ list_splice_tail_init(&both_list, &op->list);
+ validate_fini_no_ticket(op, NULL, NULL);
+ if (unlikely(ret == -EDEADLK)) {
+ ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
+ &op->ticket);
+ if (!ret)
+ res_bo = nvbo;
+ }
+ if (unlikely(ret)) {
+ if (ret != -ERESTARTSYS)
+ NV_PRINTK(error, cli, "fail reserve\n");
+ break;
+ }
+ }
+
+ 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, &both_list);
+ else
+ if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
+ list_add_tail(&nvbo->entry, &vram_list);
+ else
+ if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
+ list_add_tail(&nvbo->entry, &gart_list);
+ else {
+ NV_PRINTK(error, cli, "invalid valid domains: 0x%08x\n",
+ b->valid_domains);
+ list_add_tail(&nvbo->entry, &both_list);
+ ret = -EINVAL;
+ break;
+ }
+ if (nvbo == res_bo)
+ goto retry;
+ }
+
+ ww_acquire_done(&op->ticket);
+ list_splice_tail(&vram_list, &op->list);
+ list_splice_tail(&gart_list, &op->list);
+ list_splice_tail(&both_list, &op->list);
+ if (ret)
+ validate_fini(op, NULL, NULL);
+ 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 = nouveau_gem_set_domain(&nvbo->gem, b->read_domains,
+ b->write_domains,
+ b->valid_domains);
+ if (unlikely(ret)) {
+ NV_PRINTK(error, cli, "fail set_domain\n");
+ return ret;
+ }
+
+ ret = nouveau_bo_validate(nvbo, true, false);
+ if (unlikely(ret)) {
+ if (ret != -ERESTARTSYS)
+ NV_PRINTK(error, cli, "fail ttm_validate\n");
+ return ret;
+ }
+
+ ret = nouveau_fence_sync(nvbo, chan, !!b->write_domains, true);
+ if (unlikely(ret)) {
+ if (ret != -ERESTARTSYS)
+ NV_PRINTK(error, cli, "fail post-validate sync\n");
+ return ret;
+ }
+
+ if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
+ 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 (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;
+
+ INIT_LIST_HEAD(&op->list);
+
+ if (nr_buffers == 0)
+ return 0;
+
+ ret = validate_init(chan, file_priv, pbbo, nr_buffers, op);
+ if (unlikely(ret)) {
+ if (ret != -ERESTARTSYS)
+ NV_PRINTK(error, cli, "validate_init\n");
+ return ret;
+ }
+
+ ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
+ if (unlikely(ret < 0)) {
+ if (ret != -ERESTARTSYS)
+ NV_PRINTK(error, cli, "validating bo list\n");
+ validate_fini(op, NULL, NULL);
+ return ret;
+ }
+ *apply_relocs = ret;
+ return 0;
+}
+
+static inline void
+u_free(void *addr)
+{
+ if (!is_vmalloc_addr(addr))
+ kfree(addr);
+ else
+ vfree(addr);
+}
+
+static inline void *
+u_memcpya(uint64_t user, unsigned nmemb, unsigned size)
+{
+ void *mem;
+ void __user *userptr = (void __force __user *)(uintptr_t)user;
+
+ size *= nmemb;
+
+ mem = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
+ if (!mem)
+ mem = vmalloc(size);
+ if (!mem)
+ return ERR_PTR(-ENOMEM);
+
+ if (copy_from_user(mem, userptr, size)) {
+ u_free(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_PRINTK(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_PRINTK(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_PRINTK(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_PRINTK(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;
+ }
+
+ ret = ttm_bo_wait(&nvbo->bo, true, false, false);
+ if (ret) {
+ NV_PRINTK(error, cli, "reloc wait_idle failed: %d\n", ret);
+ break;
+ }
+
+ nouveau_bo_wr32(nvbo, r->reloc_bo_offset >> 2, data);
+ }
+
+ u_free(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->object->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_PRINTK(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_PRINTK(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_PRINTK(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)) {
+ u_free(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_PRINTK(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_PRINTK(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_PRINTK(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_PRINTK(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 (drm->device.info.chipset >= 0x25) {
+ ret = RING_SPACE(chan, req->nr_push * 2);
+ if (ret) {
+ NV_PRINTK(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_PRINTK(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_PRINTK(error, cli, "error fencing pushbuf: %d\n", ret);
+ WIND_RING(chan);
+ goto out;
+ }
+
+out:
+ validate_fini(&op, fence, bo);
+ nouveau_fence_unref(&fence);
+
+out_prevalid:
+ u_free(bo);
+ u_free(push);
+
+out_next:
+ if (chan->dma.ib_max) {
+ req->suffix0 = 0x00000000;
+ req->suffix1 = 0x00000000;
+ } else
+ if (drm->device.info.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);
+}
+
+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);
+ bool write = !!(req->flags & NOUVEAU_GEM_CPU_PREP_WRITE);
+ int ret;
+
+ gem = drm_gem_object_lookup(dev, file_priv, req->handle);
+ if (!gem)
+ return -ENOENT;
+ nvbo = nouveau_gem_object(gem);
+
+ if (no_wait)
+ ret = reservation_object_test_signaled_rcu(nvbo->bo.resv, write) ? 0 : -EBUSY;
+ else {
+ long lret;
+
+ lret = reservation_object_wait_timeout_rcu(nvbo->bo.resv, write, true, 30 * HZ);
+ if (!lret)
+ ret = -EBUSY;
+ else if (lret > 0)
+ ret = 0;
+ else
+ ret = lret;
+ }
+ nouveau_bo_sync_for_cpu(nvbo);
+ 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)
+{
+ struct drm_nouveau_gem_cpu_fini *req = data;
+ struct drm_gem_object *gem;
+ struct nouveau_bo *nvbo;
+
+ gem = drm_gem_object_lookup(dev, file_priv, req->handle);
+ if (!gem)
+ return -ENOENT;
+ nvbo = nouveau_gem_object(gem);
+
+ nouveau_bo_sync_for_device(nvbo);
+ drm_gem_object_unreference_unlocked(gem);
+ 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;
+}
+
Code Review / kvmfornfv.git / blobdiff