Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
The etnaviv authors | 1766 | 58.65% | 1 | 1.75% |
Lucas Stach | 547 | 18.17% | 29 | 50.88% |
Christian Gmeiner | 344 | 11.42% | 3 | 5.26% |
Philipp Zabel | 170 | 5.65% | 2 | 3.51% |
Daniel Vetter | 46 | 1.53% | 2 | 3.51% |
Russell King | 40 | 1.33% | 3 | 5.26% |
Rob Herring | 27 | 0.90% | 1 | 1.75% |
Michal Hocko | 17 | 0.56% | 2 | 3.51% |
Christian König | 16 | 0.53% | 5 | 8.77% |
Sam Ravnborg | 12 | 0.40% | 1 | 1.75% |
Sharat Masetty | 8 | 0.27% | 1 | 1.75% |
Dan Carpenter | 7 | 0.23% | 1 | 1.75% |
Gustavo Padovan | 3 | 0.10% | 1 | 1.75% |
Danilo Krummrich | 2 | 0.07% | 1 | 1.75% |
Thomas Gleixner | 2 | 0.07% | 1 | 1.75% |
Wladimir J. van der Laan | 2 | 0.07% | 1 | 1.75% |
Cihangir Akturk | 1 | 0.03% | 1 | 1.75% |
Emil Velikov | 1 | 0.03% | 1 | 1.75% |
Total | 3011 | 57 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2015 Etnaviv Project */ #include <drm/drm_file.h> #include <linux/dma-fence-array.h> #include <linux/file.h> #include <linux/pm_runtime.h> #include <linux/dma-resv.h> #include <linux/sync_file.h> #include <linux/uaccess.h> #include <linux/vmalloc.h> #include "etnaviv_cmdbuf.h" #include "etnaviv_drv.h" #include "etnaviv_gpu.h" #include "etnaviv_gem.h" #include "etnaviv_perfmon.h" #include "etnaviv_sched.h" /* * Cmdstream submission: */ #define BO_INVALID_FLAGS ~(ETNA_SUBMIT_BO_READ | ETNA_SUBMIT_BO_WRITE) /* make sure these don't conflict w/ ETNAVIV_SUBMIT_BO_x */ #define BO_LOCKED 0x4000 #define BO_PINNED 0x2000 static struct etnaviv_gem_submit *submit_create(struct drm_device *dev, struct etnaviv_gpu *gpu, size_t nr_bos, size_t nr_pmrs) { struct etnaviv_gem_submit *submit; size_t sz = size_vstruct(nr_bos, sizeof(submit->bos[0]), sizeof(*submit)); submit = kzalloc(sz, GFP_KERNEL); if (!submit) return NULL; submit->pmrs = kcalloc(nr_pmrs, sizeof(struct etnaviv_perfmon_request), GFP_KERNEL); if (!submit->pmrs) { kfree(submit); return NULL; } submit->nr_pmrs = nr_pmrs; submit->gpu = gpu; kref_init(&submit->refcount); return submit; } static int submit_lookup_objects(struct etnaviv_gem_submit *submit, struct drm_file *file, struct drm_etnaviv_gem_submit_bo *submit_bos, unsigned nr_bos) { struct drm_etnaviv_gem_submit_bo *bo; unsigned i; int ret = 0; spin_lock(&file->table_lock); for (i = 0, bo = submit_bos; i < nr_bos; i++, bo++) { struct drm_gem_object *obj; if (bo->flags & BO_INVALID_FLAGS) { DRM_ERROR("invalid flags: %x\n", bo->flags); ret = -EINVAL; goto out_unlock; } submit->bos[i].flags = bo->flags; if (submit->flags & ETNA_SUBMIT_SOFTPIN) { if (bo->presumed < ETNAVIV_SOFTPIN_START_ADDRESS) { DRM_ERROR("invalid softpin address\n"); ret = -EINVAL; goto out_unlock; } submit->bos[i].va = bo->presumed; } /* normally use drm_gem_object_lookup(), but for bulk lookup * all under single table_lock just hit object_idr directly: */ obj = idr_find(&file->object_idr, bo->handle); if (!obj) { DRM_ERROR("invalid handle %u at index %u\n", bo->handle, i); ret = -EINVAL; goto out_unlock; } /* * Take a refcount on the object. The file table lock * prevents the object_idr's refcount on this being dropped. */ drm_gem_object_get(obj); submit->bos[i].obj = to_etnaviv_bo(obj); } out_unlock: submit->nr_bos = i; spin_unlock(&file->table_lock); return ret; } static void submit_unlock_object(struct etnaviv_gem_submit *submit, int i) { if (submit->bos[i].flags & BO_LOCKED) { struct drm_gem_object *obj = &submit->bos[i].obj->base; dma_resv_unlock(obj->resv); submit->bos[i].flags &= ~BO_LOCKED; } } static int submit_lock_objects(struct etnaviv_gem_submit *submit, struct ww_acquire_ctx *ticket) { int contended, slow_locked = -1, i, ret = 0; retry: for (i = 0; i < submit->nr_bos; i++) { struct drm_gem_object *obj = &submit->bos[i].obj->base; if (slow_locked == i) slow_locked = -1; contended = i; if (!(submit->bos[i].flags & BO_LOCKED)) { ret = dma_resv_lock_interruptible(obj->resv, ticket); if (ret == -EALREADY) DRM_ERROR("BO at index %u already on submit list\n", i); if (ret) goto fail; submit->bos[i].flags |= BO_LOCKED; } } ww_acquire_done(ticket); return 0; fail: for (; i >= 0; i--) submit_unlock_object(submit, i); if (slow_locked > 0) submit_unlock_object(submit, slow_locked); if (ret == -EDEADLK) { struct drm_gem_object *obj; obj = &submit->bos[contended].obj->base; /* we lost out in a seqno race, lock and retry.. */ ret = dma_resv_lock_slow_interruptible(obj->resv, ticket); if (!ret) { submit->bos[contended].flags |= BO_LOCKED; slow_locked = contended; goto retry; } } return ret; } static int submit_fence_sync(struct etnaviv_gem_submit *submit) { int i, ret = 0; for (i = 0; i < submit->nr_bos; i++) { struct etnaviv_gem_submit_bo *bo = &submit->bos[i]; struct dma_resv *robj = bo->obj->base.resv; ret = dma_resv_reserve_fences(robj, 1); if (ret) return ret; if (submit->flags & ETNA_SUBMIT_NO_IMPLICIT) continue; ret = drm_sched_job_add_implicit_dependencies(&submit->sched_job, &bo->obj->base, bo->flags & ETNA_SUBMIT_BO_WRITE); if (ret) return ret; } return ret; } static void submit_attach_object_fences(struct etnaviv_gem_submit *submit) { int i; for (i = 0; i < submit->nr_bos; i++) { struct drm_gem_object *obj = &submit->bos[i].obj->base; bool write = submit->bos[i].flags & ETNA_SUBMIT_BO_WRITE; dma_resv_add_fence(obj->resv, submit->out_fence, write ? DMA_RESV_USAGE_WRITE : DMA_RESV_USAGE_READ); submit_unlock_object(submit, i); } } static int submit_pin_objects(struct etnaviv_gem_submit *submit) { int i, ret = 0; for (i = 0; i < submit->nr_bos; i++) { struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj; struct etnaviv_vram_mapping *mapping; mapping = etnaviv_gem_mapping_get(&etnaviv_obj->base, submit->mmu_context, submit->bos[i].va); if (IS_ERR(mapping)) { ret = PTR_ERR(mapping); break; } if ((submit->flags & ETNA_SUBMIT_SOFTPIN) && submit->bos[i].va != mapping->iova) { etnaviv_gem_mapping_unreference(mapping); return -EINVAL; } atomic_inc(&etnaviv_obj->gpu_active); submit->bos[i].flags |= BO_PINNED; submit->bos[i].mapping = mapping; } return ret; } static int submit_bo(struct etnaviv_gem_submit *submit, u32 idx, struct etnaviv_gem_submit_bo **bo) { if (idx >= submit->nr_bos) { DRM_ERROR("invalid buffer index: %u (out of %u)\n", idx, submit->nr_bos); return -EINVAL; } *bo = &submit->bos[idx]; return 0; } /* process the reloc's and patch up the cmdstream as needed: */ static int submit_reloc(struct etnaviv_gem_submit *submit, void *stream, u32 size, const struct drm_etnaviv_gem_submit_reloc *relocs, u32 nr_relocs) { u32 i, last_offset = 0; u32 *ptr = stream; int ret; /* Submits using softpin don't blend with relocs */ if ((submit->flags & ETNA_SUBMIT_SOFTPIN) && nr_relocs != 0) return -EINVAL; for (i = 0; i < nr_relocs; i++) { const struct drm_etnaviv_gem_submit_reloc *r = relocs + i; struct etnaviv_gem_submit_bo *bo; u32 off; if (unlikely(r->flags)) { DRM_ERROR("invalid reloc flags\n"); return -EINVAL; } if (r->submit_offset % 4) { DRM_ERROR("non-aligned reloc offset: %u\n", r->submit_offset); return -EINVAL; } /* offset in dwords: */ off = r->submit_offset / 4; if ((off >= size ) || (off < last_offset)) { DRM_ERROR("invalid offset %u at reloc %u\n", off, i); return -EINVAL; } ret = submit_bo(submit, r->reloc_idx, &bo); if (ret) return ret; if (r->reloc_offset > bo->obj->base.size - sizeof(*ptr)) { DRM_ERROR("relocation %u outside object\n", i); return -EINVAL; } ptr[off] = bo->mapping->iova + r->reloc_offset; last_offset = off; } return 0; } static int submit_perfmon_validate(struct etnaviv_gem_submit *submit, u32 exec_state, const struct drm_etnaviv_gem_submit_pmr *pmrs) { u32 i; for (i = 0; i < submit->nr_pmrs; i++) { const struct drm_etnaviv_gem_submit_pmr *r = pmrs + i; struct etnaviv_gem_submit_bo *bo; int ret; ret = submit_bo(submit, r->read_idx, &bo); if (ret) return ret; /* at offset 0 a sequence number gets stored used for userspace sync */ if (r->read_offset == 0) { DRM_ERROR("perfmon request: offset is 0"); return -EINVAL; } if (r->read_offset >= bo->obj->base.size - sizeof(u32)) { DRM_ERROR("perfmon request: offset %u outside object", i); return -EINVAL; } if (r->flags & ~(ETNA_PM_PROCESS_PRE | ETNA_PM_PROCESS_POST)) { DRM_ERROR("perfmon request: flags are not valid"); return -EINVAL; } if (etnaviv_pm_req_validate(r, exec_state)) { DRM_ERROR("perfmon request: domain or signal not valid"); return -EINVAL; } submit->pmrs[i].flags = r->flags; submit->pmrs[i].domain = r->domain; submit->pmrs[i].signal = r->signal; submit->pmrs[i].sequence = r->sequence; submit->pmrs[i].offset = r->read_offset; submit->pmrs[i].bo_vma = etnaviv_gem_vmap(&bo->obj->base); } return 0; } static void submit_cleanup(struct kref *kref) { struct etnaviv_gem_submit *submit = container_of(kref, struct etnaviv_gem_submit, refcount); unsigned i; if (submit->cmdbuf.suballoc) etnaviv_cmdbuf_free(&submit->cmdbuf); if (submit->mmu_context) etnaviv_iommu_context_put(submit->mmu_context); if (submit->prev_mmu_context) etnaviv_iommu_context_put(submit->prev_mmu_context); for (i = 0; i < submit->nr_bos; i++) { struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj; /* unpin all objects */ if (submit->bos[i].flags & BO_PINNED) { etnaviv_gem_mapping_unreference(submit->bos[i].mapping); atomic_dec(&etnaviv_obj->gpu_active); submit->bos[i].mapping = NULL; submit->bos[i].flags &= ~BO_PINNED; } /* if the GPU submit failed, objects might still be locked */ submit_unlock_object(submit, i); drm_gem_object_put(&etnaviv_obj->base); } wake_up_all(&submit->gpu->fence_event); if (submit->out_fence) { /* * Remove from user fence array before dropping the reference, * so fence can not be found in lookup anymore. */ xa_erase(&submit->gpu->user_fences, submit->out_fence_id); dma_fence_put(submit->out_fence); } put_pid(submit->pid); kfree(submit->pmrs); kfree(submit); } void etnaviv_submit_put(struct etnaviv_gem_submit *submit) { kref_put(&submit->refcount, submit_cleanup); } int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, struct drm_file *file) { struct etnaviv_file_private *ctx = file->driver_priv; struct etnaviv_drm_private *priv = dev->dev_private; struct drm_etnaviv_gem_submit *args = data; struct drm_etnaviv_gem_submit_reloc *relocs; struct drm_etnaviv_gem_submit_pmr *pmrs; struct drm_etnaviv_gem_submit_bo *bos; struct etnaviv_gem_submit *submit; struct etnaviv_gpu *gpu; struct sync_file *sync_file = NULL; struct ww_acquire_ctx ticket; int out_fence_fd = -1; struct pid *pid = get_pid(task_pid(current)); void *stream; int ret; if (args->pipe >= ETNA_MAX_PIPES) return -EINVAL; gpu = priv->gpu[args->pipe]; if (!gpu) return -ENXIO; if (args->stream_size % 4) { DRM_ERROR("non-aligned cmdstream buffer size: %u\n", args->stream_size); return -EINVAL; } if (args->exec_state != ETNA_PIPE_3D && args->exec_state != ETNA_PIPE_2D && args->exec_state != ETNA_PIPE_VG) { DRM_ERROR("invalid exec_state: 0x%x\n", args->exec_state); return -EINVAL; } if (args->flags & ~ETNA_SUBMIT_FLAGS) { DRM_ERROR("invalid flags: 0x%x\n", args->flags); return -EINVAL; } if ((args->flags & ETNA_SUBMIT_SOFTPIN) && priv->mmu_global->version != ETNAVIV_IOMMU_V2) { DRM_ERROR("softpin requested on incompatible MMU\n"); return -EINVAL; } if (args->stream_size > SZ_128K || args->nr_relocs > SZ_128K || args->nr_bos > SZ_128K || args->nr_pmrs > 128) { DRM_ERROR("submit arguments out of size limits\n"); return -EINVAL; } /* * Copy the command submission and bo array to kernel space in * one go, and do this outside of any locks. */ bos = kvmalloc_array(args->nr_bos, sizeof(*bos), GFP_KERNEL); relocs = kvmalloc_array(args->nr_relocs, sizeof(*relocs), GFP_KERNEL); pmrs = kvmalloc_array(args->nr_pmrs, sizeof(*pmrs), GFP_KERNEL); stream = kvmalloc_array(1, args->stream_size, GFP_KERNEL); if (!bos || !relocs || !pmrs || !stream) { ret = -ENOMEM; goto err_submit_cmds; } ret = copy_from_user(bos, u64_to_user_ptr(args->bos), args->nr_bos * sizeof(*bos)); if (ret) { ret = -EFAULT; goto err_submit_cmds; } ret = copy_from_user(relocs, u64_to_user_ptr(args->relocs), args->nr_relocs * sizeof(*relocs)); if (ret) { ret = -EFAULT; goto err_submit_cmds; } ret = copy_from_user(pmrs, u64_to_user_ptr(args->pmrs), args->nr_pmrs * sizeof(*pmrs)); if (ret) { ret = -EFAULT; goto err_submit_cmds; } ret = copy_from_user(stream, u64_to_user_ptr(args->stream), args->stream_size); if (ret) { ret = -EFAULT; goto err_submit_cmds; } if (args->flags & ETNA_SUBMIT_FENCE_FD_OUT) { out_fence_fd = get_unused_fd_flags(O_CLOEXEC); if (out_fence_fd < 0) { ret = out_fence_fd; goto err_submit_cmds; } } ww_acquire_init(&ticket, &reservation_ww_class); submit = submit_create(dev, gpu, args->nr_bos, args->nr_pmrs); if (!submit) { ret = -ENOMEM; goto err_submit_ww_acquire; } submit->pid = pid; ret = etnaviv_cmdbuf_init(priv->cmdbuf_suballoc, &submit->cmdbuf, ALIGN(args->stream_size, 8) + 8); if (ret) goto err_submit_put; submit->ctx = file->driver_priv; submit->mmu_context = etnaviv_iommu_context_get(submit->ctx->mmu); submit->exec_state = args->exec_state; submit->flags = args->flags; ret = drm_sched_job_init(&submit->sched_job, &ctx->sched_entity[args->pipe], 1, submit->ctx); if (ret) goto err_submit_put; ret = submit_lookup_objects(submit, file, bos, args->nr_bos); if (ret) goto err_submit_job; if ((priv->mmu_global->version != ETNAVIV_IOMMU_V2) && !etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4, relocs, args->nr_relocs)) { ret = -EINVAL; goto err_submit_job; } if (args->flags & ETNA_SUBMIT_FENCE_FD_IN) { struct dma_fence *in_fence = sync_file_get_fence(args->fence_fd); if (!in_fence) { ret = -EINVAL; goto err_submit_job; } ret = drm_sched_job_add_dependency(&submit->sched_job, in_fence); if (ret) goto err_submit_job; } ret = submit_pin_objects(submit); if (ret) goto err_submit_job; ret = submit_reloc(submit, stream, args->stream_size / 4, relocs, args->nr_relocs); if (ret) goto err_submit_job; ret = submit_perfmon_validate(submit, args->exec_state, pmrs); if (ret) goto err_submit_job; memcpy(submit->cmdbuf.vaddr, stream, args->stream_size); ret = submit_lock_objects(submit, &ticket); if (ret) goto err_submit_job; ret = submit_fence_sync(submit); if (ret) goto err_submit_job; ret = etnaviv_sched_push_job(submit); if (ret) goto err_submit_job; submit_attach_object_fences(submit); if (args->flags & ETNA_SUBMIT_FENCE_FD_OUT) { /* * This can be improved: ideally we want to allocate the sync * file before kicking off the GPU job and just attach the * fence to the sync file here, eliminating the ENOMEM * possibility at this stage. */ sync_file = sync_file_create(submit->out_fence); if (!sync_file) { ret = -ENOMEM; /* * When this late error is hit, the submit has already * been handed over to the scheduler. At this point * the sched_job must not be cleaned up. */ goto err_submit_put; } fd_install(out_fence_fd, sync_file->file); } args->fence_fd = out_fence_fd; args->fence = submit->out_fence_id; err_submit_job: if (ret) drm_sched_job_cleanup(&submit->sched_job); err_submit_put: etnaviv_submit_put(submit); err_submit_ww_acquire: ww_acquire_fini(&ticket); err_submit_cmds: if (ret && (out_fence_fd >= 0)) put_unused_fd(out_fence_fd); kvfree(stream); kvfree(bos); kvfree(relocs); kvfree(pmrs); return ret; }
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