// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2014-2018 Broadcom * Copyright (C) 2023 Raspberry Pi */ #include #include "v3d_drv.h" #include "v3d_regs.h" #include "v3d_trace.h" /* Takes the reservation lock on all the BOs being referenced, so that * we can attach fences and update the reservations after pushing the job * to the queue. * * We don't lock the RCL the tile alloc/state BOs, or overflow memory * (all of which are on render->unref_list). They're entirely private * to v3d, so we don't attach dma-buf fences to them. */ static int v3d_lock_bo_reservations(struct v3d_job *job, struct ww_acquire_ctx *acquire_ctx) { int i, ret; ret = drm_gem_lock_reservations(job->bo, job->bo_count, acquire_ctx); if (ret) return ret; for (i = 0; i < job->bo_count; i++) { ret = dma_resv_reserve_fences(job->bo[i]->resv, 1); if (ret) goto fail; ret = drm_sched_job_add_implicit_dependencies(&job->base, job->bo[i], true); if (ret) goto fail; } return 0; fail: drm_gem_unlock_reservations(job->bo, job->bo_count, acquire_ctx); return ret; } /** * v3d_lookup_bos() - Sets up job->bo[] with the GEM objects * referenced by the job. * @dev: DRM device * @file_priv: DRM file for this fd * @job: V3D job being set up * @bo_handles: GEM handles * @bo_count: Number of GEM handles passed in * * The command validator needs to reference BOs by their index within * the submitted job's BO list. This does the validation of the job's * BO list and reference counting for the lifetime of the job. * * Note that this function doesn't need to unreference the BOs on * failure, because that will happen at `v3d_job_free()`. */ static int v3d_lookup_bos(struct drm_device *dev, struct drm_file *file_priv, struct v3d_job *job, u64 bo_handles, u32 bo_count) { job->bo_count = bo_count; if (!job->bo_count) { /* See comment on bo_index for why we have to check * this. */ DRM_DEBUG("Rendering requires BOs\n"); return -EINVAL; } return drm_gem_objects_lookup(file_priv, (void __user *)(uintptr_t)bo_handles, job->bo_count, &job->bo); } static void v3d_job_free(struct kref *ref) { struct v3d_job *job = container_of(ref, struct v3d_job, refcount); int i; if (job->bo) { for (i = 0; i < job->bo_count; i++) drm_gem_object_put(job->bo[i]); kvfree(job->bo); } dma_fence_put(job->irq_fence); dma_fence_put(job->done_fence); if (job->perfmon) v3d_perfmon_put(job->perfmon); kfree(job); } static void v3d_render_job_free(struct kref *ref) { struct v3d_render_job *job = container_of(ref, struct v3d_render_job, base.refcount); struct v3d_bo *bo, *save; list_for_each_entry_safe(bo, save, &job->unref_list, unref_head) { drm_gem_object_put(&bo->base.base); } v3d_job_free(ref); } void v3d_job_cleanup(struct v3d_job *job) { if (!job) return; drm_sched_job_cleanup(&job->base); v3d_job_put(job); } void v3d_job_put(struct v3d_job *job) { if (!job) return; kref_put(&job->refcount, job->free); } static int v3d_job_allocate(void **container, size_t size) { *container = kcalloc(1, size, GFP_KERNEL); if (!*container) { DRM_ERROR("Cannot allocate memory for V3D job.\n"); return -ENOMEM; } return 0; } static void v3d_job_deallocate(void **container) { kfree(*container); *container = NULL; } static int v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv, struct v3d_job *job, void (*free)(struct kref *ref), u32 in_sync, struct v3d_submit_ext *se, enum v3d_queue queue) { struct v3d_file_priv *v3d_priv = file_priv->driver_priv; bool has_multisync = se && (se->flags & DRM_V3D_EXT_ID_MULTI_SYNC); int ret, i; job->v3d = v3d; job->free = free; job->file_priv = v3d_priv; ret = drm_sched_job_init(&job->base, &v3d_priv->sched_entity[queue], 1, v3d_priv, file_priv->client_id); if (ret) return ret; if (has_multisync) { if (se->in_sync_count && se->wait_stage == queue) { struct drm_v3d_sem __user *handle = u64_to_user_ptr(se->in_syncs); for (i = 0; i < se->in_sync_count; i++) { struct drm_v3d_sem in; if (copy_from_user(&in, handle++, sizeof(in))) { ret = -EFAULT; DRM_DEBUG("Failed to copy wait dep handle.\n"); goto fail_deps; } ret = drm_sched_job_add_syncobj_dependency(&job->base, file_priv, in.handle, 0); // TODO: Investigate why this was filtered out for the IOCTL. if (ret && ret != -ENOENT) goto fail_deps; } } } else { ret = drm_sched_job_add_syncobj_dependency(&job->base, file_priv, in_sync, 0); // TODO: Investigate why this was filtered out for the IOCTL. if (ret && ret != -ENOENT) goto fail_deps; } kref_init(&job->refcount); return 0; fail_deps: drm_sched_job_cleanup(&job->base); return ret; } static void v3d_push_job(struct v3d_job *job) { drm_sched_job_arm(&job->base); job->done_fence = dma_fence_get(&job->base.s_fence->finished); /* put by scheduler job completion */ kref_get(&job->refcount); drm_sched_entity_push_job(&job->base); } static void v3d_attach_fences_and_unlock_reservation(struct drm_file *file_priv, struct v3d_job *job, struct ww_acquire_ctx *acquire_ctx, u32 out_sync, struct v3d_submit_ext *se, struct dma_fence *done_fence) { struct drm_syncobj *sync_out; bool has_multisync = se && (se->flags & DRM_V3D_EXT_ID_MULTI_SYNC); int i; for (i = 0; i < job->bo_count; i++) { /* XXX: Use shared fences for read-only objects. */ dma_resv_add_fence(job->bo[i]->resv, job->done_fence, DMA_RESV_USAGE_WRITE); } drm_gem_unlock_reservations(job->bo, job->bo_count, acquire_ctx); /* Update the return sync object for the job */ /* If it only supports a single signal semaphore*/ if (!has_multisync) { sync_out = drm_syncobj_find(file_priv, out_sync); if (sync_out) { drm_syncobj_replace_fence(sync_out, done_fence); drm_syncobj_put(sync_out); } return; } /* If multiple semaphores extension is supported */ if (se->out_sync_count) { for (i = 0; i < se->out_sync_count; i++) { drm_syncobj_replace_fence(se->out_syncs[i].syncobj, done_fence); drm_syncobj_put(se->out_syncs[i].syncobj); } kvfree(se->out_syncs); } } static int v3d_setup_csd_jobs_and_bos(struct drm_file *file_priv, struct v3d_dev *v3d, struct drm_v3d_submit_csd *args, struct v3d_csd_job **job, struct v3d_job **clean_job, struct v3d_submit_ext *se, struct ww_acquire_ctx *acquire_ctx) { int ret; ret = v3d_job_allocate((void *)job, sizeof(**job)); if (ret) return ret; ret = v3d_job_init(v3d, file_priv, &(*job)->base, v3d_job_free, args->in_sync, se, V3D_CSD); if (ret) { v3d_job_deallocate((void *)job); return ret; } ret = v3d_job_allocate((void *)clean_job, sizeof(**clean_job)); if (ret) return ret; ret = v3d_job_init(v3d, file_priv, *clean_job, v3d_job_free, 0, NULL, V3D_CACHE_CLEAN); if (ret) { v3d_job_deallocate((void *)clean_job); return ret; } (*job)->args = *args; ret = v3d_lookup_bos(&v3d->drm, file_priv, *clean_job, args->bo_handles, args->bo_handle_count); if (ret) return ret; return v3d_lock_bo_reservations(*clean_job, acquire_ctx); } static void v3d_put_multisync_post_deps(struct v3d_submit_ext *se) { unsigned int i; if (!(se && se->out_sync_count)) return; for (i = 0; i < se->out_sync_count; i++) drm_syncobj_put(se->out_syncs[i].syncobj); kvfree(se->out_syncs); } static int v3d_get_multisync_post_deps(struct drm_file *file_priv, struct v3d_submit_ext *se, u32 count, u64 handles) { struct drm_v3d_sem __user *post_deps; int i, ret; if (!count) return 0; se->out_syncs = (struct v3d_submit_outsync *) kvmalloc_array(count, sizeof(struct v3d_submit_outsync), GFP_KERNEL); if (!se->out_syncs) return -ENOMEM; post_deps = u64_to_user_ptr(handles); for (i = 0; i < count; i++) { struct drm_v3d_sem out; if (copy_from_user(&out, post_deps++, sizeof(out))) { ret = -EFAULT; DRM_DEBUG("Failed to copy post dep handles\n"); goto fail; } se->out_syncs[i].syncobj = drm_syncobj_find(file_priv, out.handle); if (!se->out_syncs[i].syncobj) { ret = -EINVAL; goto fail; } } se->out_sync_count = count; return 0; fail: for (i--; i >= 0; i--) drm_syncobj_put(se->out_syncs[i].syncobj); kvfree(se->out_syncs); return ret; } /* Get data for multiple binary semaphores synchronization. Parse syncobj * to be signaled when job completes (out_sync). */ static int v3d_get_multisync_submit_deps(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_submit_ext *se) { struct drm_v3d_multi_sync multisync; int ret; if (se->in_sync_count || se->out_sync_count) { DRM_DEBUG("Two multisync extensions were added to the same job."); return -EINVAL; } if (copy_from_user(&multisync, ext, sizeof(multisync))) return -EFAULT; if (multisync.pad) return -EINVAL; ret = v3d_get_multisync_post_deps(file_priv, se, multisync.out_sync_count, multisync.out_syncs); if (ret) return ret; se->in_sync_count = multisync.in_sync_count; se->in_syncs = multisync.in_syncs; se->flags |= DRM_V3D_EXT_ID_MULTI_SYNC; se->wait_stage = multisync.wait_stage; return 0; } /* Get data for the indirect CSD job submission. */ static int v3d_get_cpu_indirect_csd_params(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_cpu_job *job) { struct v3d_file_priv *v3d_priv = file_priv->driver_priv; struct v3d_dev *v3d = v3d_priv->v3d; struct drm_v3d_indirect_csd indirect_csd; struct v3d_indirect_csd_info *info = &job->indirect_csd; if (!job) { DRM_DEBUG("CPU job extension was attached to a GPU job.\n"); return -EINVAL; } if (job->job_type) { DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n"); return -EINVAL; } if (copy_from_user(&indirect_csd, ext, sizeof(indirect_csd))) return -EFAULT; if (!v3d_has_csd(v3d)) { DRM_DEBUG("Attempting CSD submit on non-CSD hardware.\n"); return -EINVAL; } job->job_type = V3D_CPU_JOB_TYPE_INDIRECT_CSD; info->offset = indirect_csd.offset; info->wg_size = indirect_csd.wg_size; memcpy(&info->wg_uniform_offsets, &indirect_csd.wg_uniform_offsets, sizeof(indirect_csd.wg_uniform_offsets)); info->indirect = drm_gem_object_lookup(file_priv, indirect_csd.indirect); return v3d_setup_csd_jobs_and_bos(file_priv, v3d, &indirect_csd.submit, &info->job, &info->clean_job, NULL, &info->acquire_ctx); } /* Get data for the query timestamp job submission. */ static int v3d_get_cpu_timestamp_query_params(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_cpu_job *job) { u32 __user *offsets, *syncs; struct drm_v3d_timestamp_query timestamp; struct v3d_timestamp_query_info *query_info = &job->timestamp_query; unsigned int i; int err; if (!job) { DRM_DEBUG("CPU job extension was attached to a GPU job.\n"); return -EINVAL; } if (job->job_type) { DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n"); return -EINVAL; } if (copy_from_user(×tamp, ext, sizeof(timestamp))) return -EFAULT; if (timestamp.pad) return -EINVAL; job->job_type = V3D_CPU_JOB_TYPE_TIMESTAMP_QUERY; query_info->queries = kvmalloc_array(timestamp.count, sizeof(struct v3d_timestamp_query), GFP_KERNEL); if (!query_info->queries) return -ENOMEM; offsets = u64_to_user_ptr(timestamp.offsets); syncs = u64_to_user_ptr(timestamp.syncs); for (i = 0; i < timestamp.count; i++) { u32 offset, sync; if (get_user(offset, offsets++)) { err = -EFAULT; goto error; } query_info->queries[i].offset = offset; if (get_user(sync, syncs++)) { err = -EFAULT; goto error; } query_info->queries[i].syncobj = drm_syncobj_find(file_priv, sync); if (!query_info->queries[i].syncobj) { err = -ENOENT; goto error; } } query_info->count = timestamp.count; return 0; error: v3d_timestamp_query_info_free(&job->timestamp_query, i); return err; } static int v3d_get_cpu_reset_timestamp_params(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_cpu_job *job) { u32 __user *syncs; struct drm_v3d_reset_timestamp_query reset; struct v3d_timestamp_query_info *query_info = &job->timestamp_query; unsigned int i; int err; if (!job) { DRM_DEBUG("CPU job extension was attached to a GPU job.\n"); return -EINVAL; } if (job->job_type) { DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n"); return -EINVAL; } if (copy_from_user(&reset, ext, sizeof(reset))) return -EFAULT; job->job_type = V3D_CPU_JOB_TYPE_RESET_TIMESTAMP_QUERY; query_info->queries = kvmalloc_array(reset.count, sizeof(struct v3d_timestamp_query), GFP_KERNEL); if (!query_info->queries) return -ENOMEM; syncs = u64_to_user_ptr(reset.syncs); for (i = 0; i < reset.count; i++) { u32 sync; query_info->queries[i].offset = reset.offset + 8 * i; if (get_user(sync, syncs++)) { err = -EFAULT; goto error; } query_info->queries[i].syncobj = drm_syncobj_find(file_priv, sync); if (!query_info->queries[i].syncobj) { err = -ENOENT; goto error; } } query_info->count = reset.count; return 0; error: v3d_timestamp_query_info_free(&job->timestamp_query, i); return err; } /* Get data for the copy timestamp query results job submission. */ static int v3d_get_cpu_copy_query_results_params(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_cpu_job *job) { u32 __user *offsets, *syncs; struct drm_v3d_copy_timestamp_query copy; struct v3d_timestamp_query_info *query_info = &job->timestamp_query; unsigned int i; int err; if (!job) { DRM_DEBUG("CPU job extension was attached to a GPU job.\n"); return -EINVAL; } if (job->job_type) { DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n"); return -EINVAL; } if (copy_from_user(©, ext, sizeof(copy))) return -EFAULT; if (copy.pad) return -EINVAL; job->job_type = V3D_CPU_JOB_TYPE_COPY_TIMESTAMP_QUERY; query_info->queries = kvmalloc_array(copy.count, sizeof(struct v3d_timestamp_query), GFP_KERNEL); if (!query_info->queries) return -ENOMEM; offsets = u64_to_user_ptr(copy.offsets); syncs = u64_to_user_ptr(copy.syncs); for (i = 0; i < copy.count; i++) { u32 offset, sync; if (get_user(offset, offsets++)) { err = -EFAULT; goto error; } query_info->queries[i].offset = offset; if (get_user(sync, syncs++)) { err = -EFAULT; goto error; } query_info->queries[i].syncobj = drm_syncobj_find(file_priv, sync); if (!query_info->queries[i].syncobj) { err = -ENOENT; goto error; } } query_info->count = copy.count; job->copy.do_64bit = copy.do_64bit; job->copy.do_partial = copy.do_partial; job->copy.availability_bit = copy.availability_bit; job->copy.offset = copy.offset; job->copy.stride = copy.stride; return 0; error: v3d_timestamp_query_info_free(&job->timestamp_query, i); return err; } static int v3d_copy_query_info(struct v3d_performance_query_info *query_info, unsigned int count, unsigned int nperfmons, u32 __user *syncs, u64 __user *kperfmon_ids, struct drm_file *file_priv) { unsigned int i, j; int err; for (i = 0; i < count; i++) { struct v3d_performance_query *query = &query_info->queries[i]; u32 __user *ids_pointer; u32 sync, id; u64 ids; if (get_user(sync, syncs++)) { err = -EFAULT; goto error; } if (get_user(ids, kperfmon_ids++)) { err = -EFAULT; goto error; } query->kperfmon_ids = kvmalloc_array(nperfmons, sizeof(struct v3d_performance_query *), GFP_KERNEL); if (!query->kperfmon_ids) { err = -ENOMEM; goto error; } ids_pointer = u64_to_user_ptr(ids); for (j = 0; j < nperfmons; j++) { if (get_user(id, ids_pointer++)) { kvfree(query->kperfmon_ids); err = -EFAULT; goto error; } query->kperfmon_ids[j] = id; } query->syncobj = drm_syncobj_find(file_priv, sync); if (!query->syncobj) { kvfree(query->kperfmon_ids); err = -ENOENT; goto error; } } return 0; error: v3d_performance_query_info_free(query_info, i); return err; } static int v3d_get_cpu_reset_performance_params(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_cpu_job *job) { struct v3d_performance_query_info *query_info = &job->performance_query; struct drm_v3d_reset_performance_query reset; int err; if (!job) { DRM_DEBUG("CPU job extension was attached to a GPU job.\n"); return -EINVAL; } if (job->job_type) { DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n"); return -EINVAL; } if (copy_from_user(&reset, ext, sizeof(reset))) return -EFAULT; job->job_type = V3D_CPU_JOB_TYPE_RESET_PERFORMANCE_QUERY; query_info->queries = kvmalloc_array(reset.count, sizeof(struct v3d_performance_query), GFP_KERNEL); if (!query_info->queries) return -ENOMEM; err = v3d_copy_query_info(query_info, reset.count, reset.nperfmons, u64_to_user_ptr(reset.syncs), u64_to_user_ptr(reset.kperfmon_ids), file_priv); if (err) return err; query_info->count = reset.count; query_info->nperfmons = reset.nperfmons; return 0; } static int v3d_get_cpu_copy_performance_query_params(struct drm_file *file_priv, struct drm_v3d_extension __user *ext, struct v3d_cpu_job *job) { struct v3d_performance_query_info *query_info = &job->performance_query; struct drm_v3d_copy_performance_query copy; int err; if (!job) { DRM_DEBUG("CPU job extension was attached to a GPU job.\n"); return -EINVAL; } if (job->job_type) { DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n"); return -EINVAL; } if (copy_from_user(©, ext, sizeof(copy))) return -EFAULT; if (copy.pad) return -EINVAL; job->job_type = V3D_CPU_JOB_TYPE_COPY_PERFORMANCE_QUERY; query_info->queries = kvmalloc_array(copy.count, sizeof(struct v3d_performance_query), GFP_KERNEL); if (!query_info->queries) return -ENOMEM; err = v3d_copy_query_info(query_info, copy.count, copy.nperfmons, u64_to_user_ptr(copy.syncs), u64_to_user_ptr(copy.kperfmon_ids), file_priv); if (err) return err; query_info->count = copy.count; query_info->nperfmons = copy.nperfmons; query_info->ncounters = copy.ncounters; job->copy.do_64bit = copy.do_64bit; job->copy.do_partial = copy.do_partial; job->copy.availability_bit = copy.availability_bit; job->copy.offset = copy.offset; job->copy.stride = copy.stride; return 0; } /* Whenever userspace sets ioctl extensions, v3d_get_extensions parses data * according to the extension id (name). */ static int v3d_get_extensions(struct drm_file *file_priv, u64 ext_handles, struct v3d_submit_ext *se, struct v3d_cpu_job *job) { struct drm_v3d_extension __user *user_ext; int ret; user_ext = u64_to_user_ptr(ext_handles); while (user_ext) { struct drm_v3d_extension ext; if (copy_from_user(&ext, user_ext, sizeof(ext))) { DRM_DEBUG("Failed to copy submit extension\n"); return -EFAULT; } switch (ext.id) { case DRM_V3D_EXT_ID_MULTI_SYNC: ret = v3d_get_multisync_submit_deps(file_priv, user_ext, se); break; case DRM_V3D_EXT_ID_CPU_INDIRECT_CSD: ret = v3d_get_cpu_indirect_csd_params(file_priv, user_ext, job); break; case DRM_V3D_EXT_ID_CPU_TIMESTAMP_QUERY: ret = v3d_get_cpu_timestamp_query_params(file_priv, user_ext, job); break; case DRM_V3D_EXT_ID_CPU_RESET_TIMESTAMP_QUERY: ret = v3d_get_cpu_reset_timestamp_params(file_priv, user_ext, job); break; case DRM_V3D_EXT_ID_CPU_COPY_TIMESTAMP_QUERY: ret = v3d_get_cpu_copy_query_results_params(file_priv, user_ext, job); break; case DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY: ret = v3d_get_cpu_reset_performance_params(file_priv, user_ext, job); break; case DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY: ret = v3d_get_cpu_copy_performance_query_params(file_priv, user_ext, job); break; default: DRM_DEBUG_DRIVER("Unknown extension id: %d\n", ext.id); return -EINVAL; } if (ret) return ret; user_ext = u64_to_user_ptr(ext.next); } return 0; } /** * v3d_submit_cl_ioctl() - Submits a job (frame) to the V3D. * @dev: DRM device * @data: ioctl argument * @file_priv: DRM file for this fd * * This is the main entrypoint for userspace to submit a 3D frame to * the GPU. Userspace provides the binner command list (if * applicable), and the kernel sets up the render command list to draw * to the framebuffer described in the ioctl, using the command lists * that the 3D engine's binner will produce. */ int v3d_submit_cl_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct v3d_dev *v3d = to_v3d_dev(dev); struct v3d_file_priv *v3d_priv = file_priv->driver_priv; struct drm_v3d_submit_cl *args = data; struct v3d_submit_ext se = {0}; struct v3d_bin_job *bin = NULL; struct v3d_render_job *render = NULL; struct v3d_job *clean_job = NULL; struct v3d_job *last_job; struct ww_acquire_ctx acquire_ctx; int ret = 0; trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end); if (args->pad) return -EINVAL; if (args->flags && args->flags & ~(DRM_V3D_SUBMIT_CL_FLUSH_CACHE | DRM_V3D_SUBMIT_EXTENSION)) { DRM_INFO("invalid flags: %d\n", args->flags); return -EINVAL; } if (args->flags & DRM_V3D_SUBMIT_EXTENSION) { ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL); if (ret) { DRM_DEBUG("Failed to get extensions.\n"); return ret; } } ret = v3d_job_allocate((void *)&render, sizeof(*render)); if (ret) return ret; ret = v3d_job_init(v3d, file_priv, &render->base, v3d_render_job_free, args->in_sync_rcl, &se, V3D_RENDER); if (ret) { v3d_job_deallocate((void *)&render); goto fail; } render->start = args->rcl_start; render->end = args->rcl_end; INIT_LIST_HEAD(&render->unref_list); if (args->bcl_start != args->bcl_end) { ret = v3d_job_allocate((void *)&bin, sizeof(*bin)); if (ret) goto fail; ret = v3d_job_init(v3d, file_priv, &bin->base, v3d_job_free, args->in_sync_bcl, &se, V3D_BIN); if (ret) { v3d_job_deallocate((void *)&bin); goto fail; } bin->start = args->bcl_start; bin->end = args->bcl_end; bin->qma = args->qma; bin->qms = args->qms; bin->qts = args->qts; bin->render = render; } if (args->flags & DRM_V3D_SUBMIT_CL_FLUSH_CACHE) { ret = v3d_job_allocate((void *)&clean_job, sizeof(*clean_job)); if (ret) goto fail; ret = v3d_job_init(v3d, file_priv, clean_job, v3d_job_free, 0, NULL, V3D_CACHE_CLEAN); if (ret) { v3d_job_deallocate((void *)&clean_job); goto fail; } last_job = clean_job; } else { last_job = &render->base; } ret = v3d_lookup_bos(dev, file_priv, last_job, args->bo_handles, args->bo_handle_count); if (ret) goto fail; ret = v3d_lock_bo_reservations(last_job, &acquire_ctx); if (ret) goto fail; if (args->perfmon_id) { if (v3d->global_perfmon) { ret = -EAGAIN; goto fail_perfmon; } render->base.perfmon = v3d_perfmon_find(v3d_priv, args->perfmon_id); if (!render->base.perfmon) { ret = -ENOENT; goto fail_perfmon; } } mutex_lock(&v3d->sched_lock); if (bin) { bin->base.perfmon = render->base.perfmon; v3d_perfmon_get(bin->base.perfmon); v3d_push_job(&bin->base); ret = drm_sched_job_add_dependency(&render->base.base, dma_fence_get(bin->base.done_fence)); if (ret) goto fail_unreserve; } v3d_push_job(&render->base); if (clean_job) { struct dma_fence *render_fence = dma_fence_get(render->base.done_fence); ret = drm_sched_job_add_dependency(&clean_job->base, render_fence); if (ret) goto fail_unreserve; clean_job->perfmon = render->base.perfmon; v3d_perfmon_get(clean_job->perfmon); v3d_push_job(clean_job); } mutex_unlock(&v3d->sched_lock); v3d_attach_fences_and_unlock_reservation(file_priv, last_job, &acquire_ctx, args->out_sync, &se, last_job->done_fence); v3d_job_put(&bin->base); v3d_job_put(&render->base); v3d_job_put(clean_job); return 0; fail_unreserve: mutex_unlock(&v3d->sched_lock); fail_perfmon: drm_gem_unlock_reservations(last_job->bo, last_job->bo_count, &acquire_ctx); fail: v3d_job_cleanup((void *)bin); v3d_job_cleanup((void *)render); v3d_job_cleanup(clean_job); v3d_put_multisync_post_deps(&se); return ret; } /** * v3d_submit_tfu_ioctl() - Submits a TFU (texture formatting) job to the V3D. * @dev: DRM device * @data: ioctl argument * @file_priv: DRM file for this fd * * Userspace provides the register setup for the TFU, which we don't * need to validate since the TFU is behind the MMU. */ int v3d_submit_tfu_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct v3d_dev *v3d = to_v3d_dev(dev); struct drm_v3d_submit_tfu *args = data; struct v3d_submit_ext se = {0}; struct v3d_tfu_job *job = NULL; struct ww_acquire_ctx acquire_ctx; int ret = 0; trace_v3d_submit_tfu_ioctl(&v3d->drm, args->iia); if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) { DRM_DEBUG("invalid flags: %d\n", args->flags); return -EINVAL; } if (args->flags & DRM_V3D_SUBMIT_EXTENSION) { ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL); if (ret) { DRM_DEBUG("Failed to get extensions.\n"); return ret; } } ret = v3d_job_allocate((void *)&job, sizeof(*job)); if (ret) return ret; ret = v3d_job_init(v3d, file_priv, &job->base, v3d_job_free, args->in_sync, &se, V3D_TFU); if (ret) { v3d_job_deallocate((void *)&job); goto fail; } job->base.bo = kcalloc(ARRAY_SIZE(args->bo_handles), sizeof(*job->base.bo), GFP_KERNEL); if (!job->base.bo) { ret = -ENOMEM; goto fail; } job->args = *args; for (job->base.bo_count = 0; job->base.bo_count < ARRAY_SIZE(args->bo_handles); job->base.bo_count++) { struct drm_gem_object *bo; if (!args->bo_handles[job->base.bo_count]) break; bo = drm_gem_object_lookup(file_priv, args->bo_handles[job->base.bo_count]); if (!bo) { DRM_DEBUG("Failed to look up GEM BO %d: %d\n", job->base.bo_count, args->bo_handles[job->base.bo_count]); ret = -ENOENT; goto fail; } job->base.bo[job->base.bo_count] = bo; } ret = v3d_lock_bo_reservations(&job->base, &acquire_ctx); if (ret) goto fail; mutex_lock(&v3d->sched_lock); v3d_push_job(&job->base); mutex_unlock(&v3d->sched_lock); v3d_attach_fences_and_unlock_reservation(file_priv, &job->base, &acquire_ctx, args->out_sync, &se, job->base.done_fence); v3d_job_put(&job->base); return 0; fail: v3d_job_cleanup((void *)job); v3d_put_multisync_post_deps(&se); return ret; } /** * v3d_submit_csd_ioctl() - Submits a CSD (compute shader) job to the V3D. * @dev: DRM device * @data: ioctl argument * @file_priv: DRM file for this fd * * Userspace provides the register setup for the CSD, which we don't * need to validate since the CSD is behind the MMU. */ int v3d_submit_csd_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct v3d_dev *v3d = to_v3d_dev(dev); struct v3d_file_priv *v3d_priv = file_priv->driver_priv; struct drm_v3d_submit_csd *args = data; struct v3d_submit_ext se = {0}; struct v3d_csd_job *job = NULL; struct v3d_job *clean_job = NULL; struct ww_acquire_ctx acquire_ctx; int ret; trace_v3d_submit_csd_ioctl(&v3d->drm, args->cfg[5], args->cfg[6]); if (args->pad) return -EINVAL; if (!v3d_has_csd(v3d)) { DRM_DEBUG("Attempting CSD submit on non-CSD hardware\n"); return -EINVAL; } if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) { DRM_INFO("invalid flags: %d\n", args->flags); return -EINVAL; } if (args->flags & DRM_V3D_SUBMIT_EXTENSION) { ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL); if (ret) { DRM_DEBUG("Failed to get extensions.\n"); return ret; } } ret = v3d_setup_csd_jobs_and_bos(file_priv, v3d, args, &job, &clean_job, &se, &acquire_ctx); if (ret) goto fail; if (args->perfmon_id) { if (v3d->global_perfmon) { ret = -EAGAIN; goto fail_perfmon; } job->base.perfmon = v3d_perfmon_find(v3d_priv, args->perfmon_id); if (!job->base.perfmon) { ret = -ENOENT; goto fail_perfmon; } } mutex_lock(&v3d->sched_lock); v3d_push_job(&job->base); ret = drm_sched_job_add_dependency(&clean_job->base, dma_fence_get(job->base.done_fence)); if (ret) goto fail_unreserve; v3d_push_job(clean_job); mutex_unlock(&v3d->sched_lock); v3d_attach_fences_and_unlock_reservation(file_priv, clean_job, &acquire_ctx, args->out_sync, &se, clean_job->done_fence); v3d_job_put(&job->base); v3d_job_put(clean_job); return 0; fail_unreserve: mutex_unlock(&v3d->sched_lock); fail_perfmon: drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count, &acquire_ctx); fail: v3d_job_cleanup((void *)job); v3d_job_cleanup(clean_job); v3d_put_multisync_post_deps(&se); return ret; } static const unsigned int cpu_job_bo_handle_count[] = { [V3D_CPU_JOB_TYPE_INDIRECT_CSD] = 1, [V3D_CPU_JOB_TYPE_TIMESTAMP_QUERY] = 1, [V3D_CPU_JOB_TYPE_RESET_TIMESTAMP_QUERY] = 1, [V3D_CPU_JOB_TYPE_COPY_TIMESTAMP_QUERY] = 2, [V3D_CPU_JOB_TYPE_RESET_PERFORMANCE_QUERY] = 0, [V3D_CPU_JOB_TYPE_COPY_PERFORMANCE_QUERY] = 1, }; /** * v3d_submit_cpu_ioctl() - Submits a CPU job to the V3D. * @dev: DRM device * @data: ioctl argument * @file_priv: DRM file for this fd * * Userspace specifies the CPU job type and data required to perform its * operations through the drm_v3d_extension struct. */ int v3d_submit_cpu_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct v3d_dev *v3d = to_v3d_dev(dev); struct drm_v3d_submit_cpu *args = data; struct v3d_submit_ext se = {0}; struct v3d_submit_ext *out_se = NULL; struct v3d_cpu_job *cpu_job = NULL; struct v3d_csd_job *csd_job = NULL; struct v3d_job *clean_job = NULL; struct ww_acquire_ctx acquire_ctx; int ret; if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) { DRM_INFO("Invalid flags: %d\n", args->flags); return -EINVAL; } ret = v3d_job_allocate((void *)&cpu_job, sizeof(*cpu_job)); if (ret) return ret; if (args->flags & DRM_V3D_SUBMIT_EXTENSION) { ret = v3d_get_extensions(file_priv, args->extensions, &se, cpu_job); if (ret) { DRM_DEBUG("Failed to get extensions.\n"); goto fail; } } /* Every CPU job must have a CPU job user extension */ if (!cpu_job->job_type) { DRM_DEBUG("CPU job must have a CPU job user extension.\n"); ret = -EINVAL; goto fail; } if (args->bo_handle_count != cpu_job_bo_handle_count[cpu_job->job_type]) { DRM_DEBUG("This CPU job was not submitted with the proper number of BOs.\n"); ret = -EINVAL; goto fail; } trace_v3d_submit_cpu_ioctl(&v3d->drm, cpu_job->job_type); ret = v3d_job_init(v3d, file_priv, &cpu_job->base, v3d_job_free, 0, &se, V3D_CPU); if (ret) { v3d_job_deallocate((void *)&cpu_job); goto fail; } clean_job = cpu_job->indirect_csd.clean_job; csd_job = cpu_job->indirect_csd.job; if (args->bo_handle_count) { ret = v3d_lookup_bos(dev, file_priv, &cpu_job->base, args->bo_handles, args->bo_handle_count); if (ret) goto fail; ret = v3d_lock_bo_reservations(&cpu_job->base, &acquire_ctx); if (ret) goto fail; } mutex_lock(&v3d->sched_lock); v3d_push_job(&cpu_job->base); switch (cpu_job->job_type) { case V3D_CPU_JOB_TYPE_INDIRECT_CSD: ret = drm_sched_job_add_dependency(&csd_job->base.base, dma_fence_get(cpu_job->base.done_fence)); if (ret) goto fail_unreserve; v3d_push_job(&csd_job->base); ret = drm_sched_job_add_dependency(&clean_job->base, dma_fence_get(csd_job->base.done_fence)); if (ret) goto fail_unreserve; v3d_push_job(clean_job); break; default: break; } mutex_unlock(&v3d->sched_lock); out_se = (cpu_job->job_type == V3D_CPU_JOB_TYPE_INDIRECT_CSD) ? NULL : &se; v3d_attach_fences_and_unlock_reservation(file_priv, &cpu_job->base, &acquire_ctx, 0, out_se, cpu_job->base.done_fence); switch (cpu_job->job_type) { case V3D_CPU_JOB_TYPE_INDIRECT_CSD: v3d_attach_fences_and_unlock_reservation(file_priv, clean_job, &cpu_job->indirect_csd.acquire_ctx, 0, &se, clean_job->done_fence); break; default: break; } v3d_job_put(&cpu_job->base); v3d_job_put(&csd_job->base); v3d_job_put(clean_job); return 0; fail_unreserve: mutex_unlock(&v3d->sched_lock); drm_gem_unlock_reservations(cpu_job->base.bo, cpu_job->base.bo_count, &acquire_ctx); drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count, &cpu_job->indirect_csd.acquire_ctx); fail: v3d_job_cleanup((void *)cpu_job); v3d_job_cleanup((void *)csd_job); v3d_job_cleanup(clean_job); v3d_put_multisync_post_deps(&se); kvfree(cpu_job->timestamp_query.queries); kvfree(cpu_job->performance_query.queries); return ret; }