/* * Copyright 2014 Advanced Micro Devices, Inc. * * 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 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 HOLDER(S) OR AUTHOR(S) 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. * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #include #include #ifdef HAVE_ALLOCA_H # include #endif #include "xf86drm.h" #include "amdgpu_drm.h" #include "amdgpu_internal.h" static int amdgpu_cs_unreference_sem(amdgpu_semaphore_handle sem); static int amdgpu_cs_reset_sem(amdgpu_semaphore_handle sem); /** * Create command submission context * * \param dev - \c [in] amdgpu device handle * \param context - \c [out] amdgpu context handle * * \return 0 on success otherwise POSIX Error code */ int amdgpu_cs_ctx_create(amdgpu_device_handle dev, amdgpu_context_handle *context) { struct amdgpu_context *gpu_context; union drm_amdgpu_ctx args; int i, j, k; int r; if (!dev || !context) return -EINVAL; gpu_context = calloc(1, sizeof(struct amdgpu_context)); if (!gpu_context) return -ENOMEM; gpu_context->dev = dev; r = pthread_mutex_init(&gpu_context->sequence_mutex, NULL); if (r) goto error; /* Create the context */ memset(&args, 0, sizeof(args)); args.in.op = AMDGPU_CTX_OP_ALLOC_CTX; r = drmCommandWriteRead(dev->fd, DRM_AMDGPU_CTX, &args, sizeof(args)); if (r) goto error; gpu_context->id = args.out.alloc.ctx_id; for (i = 0; i < AMDGPU_HW_IP_NUM; i++) for (j = 0; j < AMDGPU_HW_IP_INSTANCE_MAX_COUNT; j++) for (k = 0; k < AMDGPU_CS_MAX_RINGS; k++) list_inithead(&gpu_context->sem_list[i][j][k]); *context = (amdgpu_context_handle)gpu_context; return 0; error: pthread_mutex_destroy(&gpu_context->sequence_mutex); free(gpu_context); return r; } /** * Release command submission context * * \param dev - \c [in] amdgpu device handle * \param context - \c [in] amdgpu context handle * * \return 0 on success otherwise POSIX Error code */ int amdgpu_cs_ctx_free(amdgpu_context_handle context) { union drm_amdgpu_ctx args; int i, j, k; int r; if (!context) return -EINVAL; pthread_mutex_destroy(&context->sequence_mutex); /* now deal with kernel side */ memset(&args, 0, sizeof(args)); args.in.op = AMDGPU_CTX_OP_FREE_CTX; args.in.ctx_id = context->id; r = drmCommandWriteRead(context->dev->fd, DRM_AMDGPU_CTX, &args, sizeof(args)); for (i = 0; i < AMDGPU_HW_IP_NUM; i++) { for (j = 0; j < AMDGPU_HW_IP_INSTANCE_MAX_COUNT; j++) { for (k = 0; k < AMDGPU_CS_MAX_RINGS; k++) { amdgpu_semaphore_handle sem; LIST_FOR_EACH_ENTRY(sem, &context->sem_list[i][j][k], list) { list_del(&sem->list); amdgpu_cs_reset_sem(sem); amdgpu_cs_unreference_sem(sem); } } } } free(context); return r; } int amdgpu_cs_query_reset_state(amdgpu_context_handle context, uint32_t *state, uint32_t *hangs) { union drm_amdgpu_ctx args; int r; if (!context) return -EINVAL; memset(&args, 0, sizeof(args)); args.in.op = AMDGPU_CTX_OP_QUERY_STATE; args.in.ctx_id = context->id; r = drmCommandWriteRead(context->dev->fd, DRM_AMDGPU_CTX, &args, sizeof(args)); if (!r) { *state = args.out.state.reset_status; *hangs = args.out.state.hangs; } return r; } /** * Submit command to kernel DRM * \param dev - \c [in] Device handle * \param context - \c [in] GPU Context * \param ibs_request - \c [in] Pointer to submission requests * \param fence - \c [out] return fence for this submission * * \return 0 on success otherwise POSIX Error code * \sa amdgpu_cs_submit() */ static int amdgpu_cs_submit_one(amdgpu_context_handle context, struct amdgpu_cs_request *ibs_request) { union drm_amdgpu_cs cs; uint64_t *chunk_array; struct drm_amdgpu_cs_chunk *chunks; struct drm_amdgpu_cs_chunk_data *chunk_data; struct drm_amdgpu_cs_chunk_dep *dependencies = NULL; struct drm_amdgpu_cs_chunk_dep *sem_dependencies = NULL; struct list_head *sem_list; amdgpu_semaphore_handle sem, tmp; uint32_t i, size, sem_count = 0; bool user_fence; int r = 0; if (ibs_request->ip_type >= AMDGPU_HW_IP_NUM) return -EINVAL; if (ibs_request->ring >= AMDGPU_CS_MAX_RINGS) return -EINVAL; if (ibs_request->number_of_ibs > AMDGPU_CS_MAX_IBS_PER_SUBMIT) return -EINVAL; if (ibs_request->number_of_ibs == 0) { ibs_request->seq_no = AMDGPU_NULL_SUBMIT_SEQ; return 0; } user_fence = (ibs_request->fence_info.handle != NULL); size = ibs_request->number_of_ibs + (user_fence ? 2 : 1) + 1; chunk_array = alloca(sizeof(uint64_t) * size); chunks = alloca(sizeof(struct drm_amdgpu_cs_chunk) * size); size = ibs_request->number_of_ibs + (user_fence ? 1 : 0); chunk_data = alloca(sizeof(struct drm_amdgpu_cs_chunk_data) * size); memset(&cs, 0, sizeof(cs)); cs.in.chunks = (uint64_t)(uintptr_t)chunk_array; cs.in.ctx_id = context->id; if (ibs_request->resources) cs.in.bo_list_handle = ibs_request->resources->handle; cs.in.num_chunks = ibs_request->number_of_ibs; /* IB chunks */ for (i = 0; i < ibs_request->number_of_ibs; i++) { struct amdgpu_cs_ib_info *ib; chunk_array[i] = (uint64_t)(uintptr_t)&chunks[i]; chunks[i].chunk_id = AMDGPU_CHUNK_ID_IB; chunks[i].length_dw = sizeof(struct drm_amdgpu_cs_chunk_ib) / 4; chunks[i].chunk_data = (uint64_t)(uintptr_t)&chunk_data[i]; ib = &ibs_request->ibs[i]; chunk_data[i].ib_data._pad = 0; chunk_data[i].ib_data.va_start = ib->ib_mc_address; chunk_data[i].ib_data.ib_bytes = ib->size * 4; chunk_data[i].ib_data.ip_type = ibs_request->ip_type; chunk_data[i].ib_data.ip_instance = ibs_request->ip_instance; chunk_data[i].ib_data.ring = ibs_request->ring; chunk_data[i].ib_data.flags = ib->flags; } pthread_mutex_lock(&context->sequence_mutex); if (user_fence) { i = cs.in.num_chunks++; /* fence chunk */ chunk_array[i] = (uint64_t)(uintptr_t)&chunks[i]; chunks[i].chunk_id = AMDGPU_CHUNK_ID_FENCE; chunks[i].length_dw = sizeof(struct drm_amdgpu_cs_chunk_fence) / 4; chunks[i].chunk_data = (uint64_t)(uintptr_t)&chunk_data[i]; /* fence bo handle */ chunk_data[i].fence_data.handle = ibs_request->fence_info.handle->handle; /* offset */ chunk_data[i].fence_data.offset = ibs_request->fence_info.offset * sizeof(uint64_t); } if (ibs_request->number_of_dependencies) { dependencies = malloc(sizeof(struct drm_amdgpu_cs_chunk_dep) * ibs_request->number_of_dependencies); if (!dependencies) { r = -ENOMEM; goto error_unlock; } for (i = 0; i < ibs_request->number_of_dependencies; ++i) { struct amdgpu_cs_fence *info = &ibs_request->dependencies[i]; struct drm_amdgpu_cs_chunk_dep *dep = &dependencies[i]; dep->ip_type = info->ip_type; dep->ip_instance = info->ip_instance; dep->ring = info->ring; dep->ctx_id = info->context->id; dep->handle = info->fence; } i = cs.in.num_chunks++; /* dependencies chunk */ chunk_array[i] = (uint64_t)(uintptr_t)&chunks[i]; chunks[i].chunk_id = AMDGPU_CHUNK_ID_DEPENDENCIES; chunks[i].length_dw = sizeof(struct drm_amdgpu_cs_chunk_dep) / 4 * ibs_request->number_of_dependencies; chunks[i].chunk_data = (uint64_t)(uintptr_t)dependencies; } sem_list = &context->sem_list[ibs_request->ip_type][ibs_request->ip_instance][ibs_request->ring]; LIST_FOR_EACH_ENTRY(sem, sem_list, list) sem_count++; if (sem_count) { sem_dependencies = malloc(sizeof(struct drm_amdgpu_cs_chunk_dep) * sem_count); if (!sem_dependencies) { r = -ENOMEM; goto error_unlock; } sem_count = 0; LIST_FOR_EACH_ENTRY_SAFE(sem, tmp, sem_list, list) { struct amdgpu_cs_fence *info = &sem->signal_fence; struct drm_amdgpu_cs_chunk_dep *dep = &sem_dependencies[sem_count++]; dep->ip_type = info->ip_type; dep->ip_instance = info->ip_instance; dep->ring = info->ring; dep->ctx_id = info->context->id; dep->handle = info->fence; list_del(&sem->list); amdgpu_cs_reset_sem(sem); amdgpu_cs_unreference_sem(sem); } i = cs.in.num_chunks++; /* dependencies chunk */ chunk_array[i] = (uint64_t)(uintptr_t)&chunks[i]; chunks[i].chunk_id = AMDGPU_CHUNK_ID_DEPENDENCIES; chunks[i].length_dw = sizeof(struct drm_amdgpu_cs_chunk_dep) / 4 * sem_count; chunks[i].chunk_data = (uint64_t)(uintptr_t)sem_dependencies; } r = drmCommandWriteRead(context->dev->fd, DRM_AMDGPU_CS, &cs, sizeof(cs)); if (r) goto error_unlock; ibs_request->seq_no = cs.out.handle; context->last_seq[ibs_request->ip_type][ibs_request->ip_instance][ibs_request->ring] = ibs_request->seq_no; error_unlock: pthread_mutex_unlock(&context->sequence_mutex); free(dependencies); free(sem_dependencies); return r; } int amdgpu_cs_submit(amdgpu_context_handle context, uint64_t flags, struct amdgpu_cs_request *ibs_request, uint32_t number_of_requests) { uint32_t i; int r; if (!context || !ibs_request) return -EINVAL; r = 0; for (i = 0; i < number_of_requests; i++) { r = amdgpu_cs_submit_one(context, ibs_request); if (r) break; ibs_request++; } return r; } /** * Calculate absolute timeout. * * \param timeout - \c [in] timeout in nanoseconds. * * \return absolute timeout in nanoseconds */ drm_private uint64_t amdgpu_cs_calculate_timeout(uint64_t timeout) { int r; if (timeout != AMDGPU_TIMEOUT_INFINITE) { struct timespec current; uint64_t current_ns; r = clock_gettime(CLOCK_MONOTONIC, ¤t); if (r) { fprintf(stderr, "clock_gettime() returned error (%d)!", errno); return AMDGPU_TIMEOUT_INFINITE; } current_ns = ((uint64_t)current.tv_sec) * 1000000000ull; current_ns += current.tv_nsec; timeout += current_ns; if (timeout < current_ns) timeout = AMDGPU_TIMEOUT_INFINITE; } return timeout; } static int amdgpu_ioctl_wait_cs(amdgpu_context_handle context, unsigned ip, unsigned ip_instance, uint32_t ring, uint64_t handle, uint64_t timeout_ns, uint64_t flags, bool *busy) { amdgpu_device_handle dev = context->dev; union drm_amdgpu_wait_cs args; int r; memset(&args, 0, sizeof(args)); args.in.handle = handle; args.in.ip_type = ip; args.in.ip_instance = ip_instance; args.in.ring = ring; args.in.ctx_id = context->id; if (flags & AMDGPU_QUERY_FENCE_TIMEOUT_IS_ABSOLUTE) args.in.timeout = timeout_ns; else args.in.timeout = amdgpu_cs_calculate_timeout(timeout_ns); r = drmIoctl(dev->fd, DRM_IOCTL_AMDGPU_WAIT_CS, &args); if (r) return -errno; *busy = args.out.status; return 0; } int amdgpu_cs_query_fence_status(struct amdgpu_cs_fence *fence, uint64_t timeout_ns, uint64_t flags, uint32_t *expired) { bool busy = true; int r; if (!fence || !expired || !fence->context) return -EINVAL; if (fence->ip_type >= AMDGPU_HW_IP_NUM) return -EINVAL; if (fence->ring >= AMDGPU_CS_MAX_RINGS) return -EINVAL; if (fence->fence == AMDGPU_NULL_SUBMIT_SEQ) { *expired = true; return 0; } *expired = false; r = amdgpu_ioctl_wait_cs(fence->context, fence->ip_type, fence->ip_instance, fence->ring, fence->fence, timeout_ns, flags, &busy); if (!r && !busy) *expired = true; return r; } static int amdgpu_ioctl_wait_fences(struct amdgpu_cs_fence *fences, uint32_t fence_count, bool wait_all, uint64_t timeout_ns, uint32_t *status, uint32_t *first) { struct drm_amdgpu_fence *drm_fences; amdgpu_device_handle dev = fences[0].context->dev; union drm_amdgpu_wait_fences args; int r; uint32_t i; drm_fences = alloca(sizeof(struct drm_amdgpu_fence) * fence_count); for (i = 0; i < fence_count; i++) { drm_fences[i].ctx_id = fences[i].context->id; drm_fences[i].ip_type = fences[i].ip_type; drm_fences[i].ip_instance = fences[i].ip_instance; drm_fences[i].ring = fences[i].ring; drm_fences[i].seq_no = fences[i].fence; } memset(&args, 0, sizeof(args)); args.in.fences = (uint64_t)(uintptr_t)drm_fences; args.in.fence_count = fence_count; args.in.wait_all = wait_all; args.in.timeout_ns = amdgpu_cs_calculate_timeout(timeout_ns); r = drmIoctl(dev->fd, DRM_IOCTL_AMDGPU_WAIT_FENCES, &args); if (r) return -errno; *status = args.out.status; if (first) *first = args.out.first_signaled; return 0; } int amdgpu_cs_wait_fences(struct amdgpu_cs_fence *fences, uint32_t fence_count, bool wait_all, uint64_t timeout_ns, uint32_t *status, uint32_t *first) { uint32_t i; /* Sanity check */ if (!fences || !status || !fence_count) return -EINVAL; for (i = 0; i < fence_count; i++) { if (NULL == fences[i].context) return -EINVAL; if (fences[i].ip_type >= AMDGPU_HW_IP_NUM) return -EINVAL; if (fences[i].ring >= AMDGPU_CS_MAX_RINGS) return -EINVAL; } *status = 0; return amdgpu_ioctl_wait_fences(fences, fence_count, wait_all, timeout_ns, status, first); } int amdgpu_cs_create_semaphore(amdgpu_semaphore_handle *sem) { struct amdgpu_semaphore *gpu_semaphore; if (!sem) return -EINVAL; gpu_semaphore = calloc(1, sizeof(struct amdgpu_semaphore)); if (!gpu_semaphore) return -ENOMEM; atomic_set(&gpu_semaphore->refcount, 1); *sem = gpu_semaphore; return 0; } int amdgpu_cs_signal_semaphore(amdgpu_context_handle ctx, uint32_t ip_type, uint32_t ip_instance, uint32_t ring, amdgpu_semaphore_handle sem) { if (!ctx || !sem) return -EINVAL; if (ip_type >= AMDGPU_HW_IP_NUM) return -EINVAL; if (ring >= AMDGPU_CS_MAX_RINGS) return -EINVAL; /* sem has been signaled */ if (sem->signal_fence.context) return -EINVAL; pthread_mutex_lock(&ctx->sequence_mutex); sem->signal_fence.context = ctx; sem->signal_fence.ip_type = ip_type; sem->signal_fence.ip_instance = ip_instance; sem->signal_fence.ring = ring; sem->signal_fence.fence = ctx->last_seq[ip_type][ip_instance][ring]; update_references(NULL, &sem->refcount); pthread_mutex_unlock(&ctx->sequence_mutex); return 0; } int amdgpu_cs_wait_semaphore(amdgpu_context_handle ctx, uint32_t ip_type, uint32_t ip_instance, uint32_t ring, amdgpu_semaphore_handle sem) { if (!ctx || !sem) return -EINVAL; if (ip_type >= AMDGPU_HW_IP_NUM) return -EINVAL; if (ring >= AMDGPU_CS_MAX_RINGS) return -EINVAL; /* must signal first */ if (!sem->signal_fence.context) return -EINVAL; pthread_mutex_lock(&ctx->sequence_mutex); list_add(&sem->list, &ctx->sem_list[ip_type][ip_instance][ring]); pthread_mutex_unlock(&ctx->sequence_mutex); return 0; } static int amdgpu_cs_reset_sem(amdgpu_semaphore_handle sem) { if (!sem || !sem->signal_fence.context) return -EINVAL; sem->signal_fence.context = NULL;; sem->signal_fence.ip_type = 0; sem->signal_fence.ip_instance = 0; sem->signal_fence.ring = 0; sem->signal_fence.fence = 0; return 0; } static int amdgpu_cs_unreference_sem(amdgpu_semaphore_handle sem) { if (!sem) return -EINVAL; if (update_references(&sem->refcount, NULL)) free(sem); return 0; } int amdgpu_cs_destroy_semaphore(amdgpu_semaphore_handle sem) { return amdgpu_cs_unreference_sem(sem); } int amdgpu_cs_create_syncobj(amdgpu_device_handle dev, uint32_t *handle) { if (NULL == dev) return -EINVAL; return drmSyncobjCreate(dev->fd, 0, handle); } int amdgpu_cs_destroy_syncobj(amdgpu_device_handle dev, uint32_t handle) { if (NULL == dev) return -EINVAL; return drmSyncobjDestroy(dev->fd, handle); } int amdgpu_cs_export_syncobj(amdgpu_device_handle dev, uint32_t handle, int *shared_fd) { if (NULL == dev) return -EINVAL; return drmSyncobjHandleToFD(dev->fd, handle, shared_fd); } int amdgpu_cs_import_syncobj(amdgpu_device_handle dev, int shared_fd, uint32_t *handle) { if (NULL == dev) return -EINVAL; return drmSyncobjFDToHandle(dev->fd, shared_fd, handle); } int amdgpu_cs_submit_raw(amdgpu_device_handle dev, amdgpu_context_handle context, amdgpu_bo_list_handle bo_list_handle, int num_chunks, struct drm_amdgpu_cs_chunk *chunks, uint64_t *seq_no) { union drm_amdgpu_cs cs = {0}; uint64_t *chunk_array; int i, r; if (num_chunks == 0) return -EINVAL; chunk_array = alloca(sizeof(uint64_t) * num_chunks); for (i = 0; i < num_chunks; i++) chunk_array[i] = (uint64_t)(uintptr_t)&chunks[i]; cs.in.chunks = (uint64_t)(uintptr_t)chunk_array; cs.in.ctx_id = context->id; cs.in.bo_list_handle = bo_list_handle ? bo_list_handle->handle : 0; cs.in.num_chunks = num_chunks; r = drmCommandWriteRead(dev->fd, DRM_AMDGPU_CS, &cs, sizeof(cs)); if (r) return r; if (seq_no) *seq_no = cs.out.handle; return 0; } void amdgpu_cs_chunk_fence_info_to_data(struct amdgpu_cs_fence_info *fence_info, struct drm_amdgpu_cs_chunk_data *data) { data->fence_data.handle = fence_info->handle->handle; data->fence_data.offset = fence_info->offset * sizeof(uint64_t); } void amdgpu_cs_chunk_fence_to_dep(struct amdgpu_cs_fence *fence, struct drm_amdgpu_cs_chunk_dep *dep) { dep->ip_type = fence->ip_type; dep->ip_instance = fence->ip_instance; dep->ring = fence->ring; dep->ctx_id = fence->context->id; dep->handle = fence->fence; }