/* * Copyright © 2018 Google, Inc. * Copyright © 2015 Intel Corporation * SPDX-License-Identifier: MIT * * Kernel interface layer for turnip running on virtio_gpu (aka virtgpu) */ #include "tu_knl.h" #include #include #include #include #include #include "vk_util.h" #include "drm-uapi/msm_drm.h" #include "drm-uapi/virtgpu_drm.h" #include "util/u_debug.h" #include "util/hash_table.h" #include "util/libsync.h" #include "util/u_process.h" #include "tu_cmd_buffer.h" #include "tu_cs.h" #include "tu_device.h" #include "tu_dynamic_rendering.h" #include "tu_knl_drm.h" #include "virglrenderer_hw.h" #include "msm_proto.h" #include "vdrm.h" struct tu_userspace_fence_cmd { uint32_t pkt[4]; /* first 4 dwords of packet */ uint32_t fence; /* fifth dword is fence value which is plugged in at runtime */ uint32_t _pad[11]; }; struct tu_userspace_fence_cmds { struct tu_userspace_fence_cmd cmds[64]; }; struct tu_virtio_queue_submit { struct vk_queue_submit *vk_submit; struct tu_u_trace_submission_data *u_trace_submission_data; struct tu_cmd_buffer **cmd_buffers; struct drm_msm_gem_submit_cmd *cmds; struct drm_virtgpu_execbuffer_syncobj *in_syncobjs; struct drm_virtgpu_execbuffer_syncobj *out_syncobjs; uint32_t nr_cmd_buffers; uint32_t nr_in_syncobjs; uint32_t nr_out_syncobjs; uint32_t entry_count; uint32_t perf_pass_index; bool autotune_fence; }; struct tu_u_trace_syncobj { uint32_t msm_queue_id; uint32_t fence; }; struct tu_virtio_device { struct vdrm_device *vdrm; struct msm_shmem *shmem; uint32_t next_blob_id; struct tu_userspace_fence_cmds *fence_cmds; struct tu_bo *fence_cmds_mem; /** * Processing zombie VMAs is a two step process, first we clear the iova * and then we close the handles. But to minimize waste of virtqueue * space (and associated stalling and ping-ponging between guest and host) * we want to batch up all the GEM_SET_IOVA ccmds before we flush them to * the host and start closing handles. * * This gives us a place to stash the VMAs between the two steps. */ struct u_vector zombie_vmas_stage_2; }; static int tu_drm_get_param(struct tu_device *dev, uint32_t param, uint64_t *value); /** * Helper for simple pass-thru ioctls */ static int virtio_simple_ioctl(struct tu_device *dev, unsigned cmd, void *_req) { MESA_TRACE_FUNC(); struct vdrm_device *vdrm = dev->vdev->vdrm; unsigned req_len = sizeof(struct msm_ccmd_ioctl_simple_req); unsigned rsp_len = sizeof(struct msm_ccmd_ioctl_simple_rsp); req_len += _IOC_SIZE(cmd); if (cmd & IOC_OUT) rsp_len += _IOC_SIZE(cmd); uint8_t buf[req_len]; struct msm_ccmd_ioctl_simple_req *req = (struct msm_ccmd_ioctl_simple_req *)buf; struct msm_ccmd_ioctl_simple_rsp *rsp; req->hdr = MSM_CCMD(IOCTL_SIMPLE, req_len); req->cmd = cmd; memcpy(req->payload, _req, _IOC_SIZE(cmd)); rsp = (struct msm_ccmd_ioctl_simple_rsp *) vdrm_alloc_rsp(vdrm, &req->hdr, rsp_len); int ret = vdrm_send_req(vdrm, &req->hdr, true); if (cmd & IOC_OUT) memcpy(_req, rsp->payload, _IOC_SIZE(cmd)); ret = rsp->ret; return ret; } static int set_iova(struct tu_device *device, uint32_t res_id, uint64_t iova) { struct msm_ccmd_gem_set_iova_req req = { .hdr = MSM_CCMD(GEM_SET_IOVA, sizeof(req)), .iova = iova, .res_id = res_id, }; return vdrm_send_req(device->vdev->vdrm, &req.hdr, false); } static int query_faults(struct tu_device *dev, uint64_t *value) { struct tu_virtio_device *vdev = dev->vdev; uint32_t async_error = 0; uint64_t global_faults; if (vdrm_shmem_has_field(vdev->shmem, async_error)) async_error = vdev->shmem->async_error; if (vdrm_shmem_has_field(vdev->shmem, global_faults)) { global_faults = vdev->shmem->global_faults; } else { int ret = tu_drm_get_param(dev, MSM_PARAM_FAULTS, &global_faults); if (ret) return ret; } *value = global_faults + async_error; return 0; } static void set_debuginfo(struct tu_device *dev) { const char *comm = util_get_process_name(); static char cmdline[0x1000+1]; int fd = open("/proc/self/cmdline", O_RDONLY); if (fd < 0) return; int n = read(fd, cmdline, sizeof(cmdline) - 1); if (n < 0) return; /* arguments are separated by NULL, convert to spaces: */ for (int i = 0; i < n; i++) { if (cmdline[i] == '\0') { cmdline[i] = ' '; } } cmdline[n] = '\0'; unsigned comm_len = strlen(comm) + 1; unsigned cmdline_len = strlen(cmdline) + 1; struct msm_ccmd_set_debuginfo_req *req; unsigned req_len = align(sizeof(*req) + comm_len + cmdline_len, 4); req = (struct msm_ccmd_set_debuginfo_req *)malloc(req_len); req->hdr = MSM_CCMD(SET_DEBUGINFO, req_len); req->comm_len = comm_len; req->cmdline_len = cmdline_len; memcpy(&req->payload[0], comm, comm_len); memcpy(&req->payload[comm_len], cmdline, cmdline_len); vdrm_send_req(dev->vdev->vdrm, &req->hdr, false); free(req); } static VkResult virtio_device_init(struct tu_device *dev) { struct tu_instance *instance = dev->physical_device->instance; int fd; fd = open(dev->physical_device->fd_path, O_RDWR | O_CLOEXEC); if (fd < 0) { return vk_startup_errorf(instance, VK_ERROR_INITIALIZATION_FAILED, "failed to open device %s", dev->physical_device->fd_path); } struct tu_virtio_device *vdev = (struct tu_virtio_device *) vk_zalloc(&instance->vk.alloc, sizeof(*vdev), 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE); if (!vdev) { close(fd); return vk_error(instance, VK_ERROR_OUT_OF_HOST_MEMORY); }; u_vector_init(&vdev->zombie_vmas_stage_2, 64, sizeof(struct tu_zombie_vma)); dev->vdev = vdev; dev->fd = fd; vdev->vdrm = vdrm_device_connect(fd, VIRTGPU_DRM_CONTEXT_MSM); p_atomic_set(&vdev->next_blob_id, 1); vdev->shmem = to_msm_shmem(vdev->vdrm->shmem); query_faults(dev, &dev->fault_count); set_debuginfo(dev); return VK_SUCCESS; } static void virtio_device_finish(struct tu_device *dev) { struct tu_instance *instance = dev->physical_device->instance; struct tu_virtio_device *vdev = dev->vdev; u_vector_finish(&vdev->zombie_vmas_stage_2); vdrm_device_close(vdev->vdrm); vk_free(&instance->vk.alloc, vdev); dev->vdev = NULL; close(dev->fd); } static int tu_drm_get_param(struct tu_device *dev, uint32_t param, uint64_t *value) { /* Technically this requires a pipe, but the kernel only supports one pipe * anyway at the time of writing and most of these are clearly pipe * independent. */ struct drm_msm_param req = { .pipe = MSM_PIPE_3D0, .param = param, }; int ret = virtio_simple_ioctl(dev, DRM_IOCTL_MSM_GET_PARAM, &req); if (ret) return ret; *value = req.value; return 0; } static int virtio_device_get_gpu_timestamp(struct tu_device *dev, uint64_t *ts) { return tu_drm_get_param(dev, MSM_PARAM_TIMESTAMP, ts); } static int virtio_device_get_suspend_count(struct tu_device *dev, uint64_t *suspend_count) { int ret = tu_drm_get_param(dev, MSM_PARAM_SUSPENDS, suspend_count); return ret; } static VkResult virtio_device_check_status(struct tu_device *device) { uint64_t last_fault_count = device->fault_count; query_faults(device, &device->fault_count); if (last_fault_count != device->fault_count) return vk_device_set_lost(&device->vk, "GPU faulted or hung"); return VK_SUCCESS; } static int virtio_submitqueue_new(struct tu_device *dev, int priority, uint32_t *queue_id) { assert(priority >= 0 && priority < dev->physical_device->submitqueue_priority_count); struct drm_msm_submitqueue req = { .flags = 0, .prio = priority, }; int ret = virtio_simple_ioctl(dev, DRM_IOCTL_MSM_SUBMITQUEUE_NEW, &req); if (ret) return ret; *queue_id = req.id; return 0; } static void virtio_submitqueue_close(struct tu_device *dev, uint32_t queue_id) { virtio_simple_ioctl(dev, DRM_IOCTL_MSM_SUBMITQUEUE_CLOSE, &queue_id); } static VkResult tu_wait_fence(struct tu_device *dev, uint32_t queue_id, int fence, uint64_t timeout_ns) { struct vdrm_device *vdrm = dev->vdev->vdrm; if (!fence_before(dev->global_bo_map->userspace_fence, fence)) return VK_SUCCESS; if (!timeout_ns) return VK_TIMEOUT; MESA_TRACE_FUNC(); struct msm_ccmd_wait_fence_req req = { .hdr = MSM_CCMD(WAIT_FENCE, sizeof(req)), .queue_id = queue_id, .fence = fence, }; struct msm_ccmd_submitqueue_query_rsp *rsp; int64_t end_time = os_time_get_nano() + timeout_ns; int ret; do { rsp = (struct msm_ccmd_submitqueue_query_rsp *) vdrm_alloc_rsp(vdrm, &req.hdr, sizeof(*rsp)); ret = vdrm_send_req(vdrm, &req.hdr, true); if (ret) goto out; if (os_time_get_nano() >= end_time) break; ret = rsp->ret; } while (ret == -ETIMEDOUT); out: if (!ret) return VK_SUCCESS; if (ret == -ETIMEDOUT) return VK_TIMEOUT; return VK_ERROR_UNKNOWN; } static VkResult tu_free_zombie_vma_locked(struct tu_device *dev, bool wait) { struct tu_virtio_device *vdev = dev->vdev; if (!u_vector_length(&dev->zombie_vmas)) return VK_SUCCESS; if (wait) { struct tu_zombie_vma *vma = (struct tu_zombie_vma *) u_vector_head(&dev->zombie_vmas); /* Wait for 3s (arbitrary timeout) */ VkResult ret = tu_wait_fence(dev, dev->queues[0]->msm_queue_id, vma->fence, 3000000000); if (ret != VK_SUCCESS) return ret; } /* Clear the iova of all finished objects in first pass so the SET_IOVA * ccmd's can be buffered and sent together to the host. *Then* delete * the handles. This avoids filling up the virtqueue with tiny messages, * since each execbuf ends up needing to be page aligned. */ int last_signaled_fence = -1; while (u_vector_length(&dev->zombie_vmas) > 0) { struct tu_zombie_vma *vma = (struct tu_zombie_vma *) u_vector_tail(&dev->zombie_vmas); if (vma->fence > last_signaled_fence) { VkResult ret = tu_wait_fence(dev, dev->queues[0]->msm_queue_id, vma->fence, 0); if (ret != VK_SUCCESS) break; last_signaled_fence = vma->fence; } u_vector_remove(&dev->zombie_vmas); if (vma->gem_handle) { set_iova(dev, vma->res_id, 0); struct tu_zombie_vma *vma2 = (struct tu_zombie_vma *) u_vector_add(&vdev->zombie_vmas_stage_2); *vma2 = *vma; } } /* And _then_ close the GEM handles: */ while (u_vector_length(&vdev->zombie_vmas_stage_2) > 0) { struct tu_zombie_vma *vma = (struct tu_zombie_vma *) u_vector_remove(&vdev->zombie_vmas_stage_2); util_vma_heap_free(&dev->vma, vma->iova, vma->size); vdrm_bo_close(dev->vdev->vdrm, vma->gem_handle); } return VK_SUCCESS; } static bool tu_restore_from_zombie_vma_locked(struct tu_device *dev, uint32_t gem_handle, uint64_t *iova) { struct tu_zombie_vma *vma; u_vector_foreach (vma, &dev->zombie_vmas) { if (vma->gem_handle == gem_handle) { *iova = vma->iova; /* mark to skip later vdrm bo and iova cleanup */ vma->gem_handle = 0; return true; } } return false; } static VkResult virtio_allocate_userspace_iova_locked(struct tu_device *dev, uint32_t gem_handle, uint64_t size, uint64_t client_iova, enum tu_bo_alloc_flags flags, uint64_t *iova) { VkResult result; *iova = 0; if (flags & TU_BO_ALLOC_DMABUF) { assert(gem_handle); if (tu_restore_from_zombie_vma_locked(dev, gem_handle, iova)) return VK_SUCCESS; } tu_free_zombie_vma_locked(dev, false); result = tu_allocate_userspace_iova(dev, size, client_iova, flags, iova); if (result == VK_ERROR_INVALID_OPAQUE_CAPTURE_ADDRESS) { /* Address may be already freed by us, but not considered as * freed by the kernel. We have to wait until all work that * may hold the address is done. Since addresses are meant to * be replayed only by debug tooling, it should be ok to wait. */ tu_free_zombie_vma_locked(dev, true); result = tu_allocate_userspace_iova(dev, size, client_iova, flags, iova); } return result; } static VkResult tu_bo_init(struct tu_device *dev, struct vk_object_base *base, struct tu_bo *bo, uint32_t gem_handle, uint64_t size, uint64_t iova, enum tu_bo_alloc_flags flags, const char *name) { assert(dev->physical_device->has_set_iova); set_iova(dev, bo->res_id, iova); name = tu_debug_bos_add(dev, size, name); mtx_lock(&dev->bo_mutex); uint32_t idx = dev->bo_count++; /* grow the bo list if needed */ if (idx >= dev->bo_list_size) { uint32_t new_len = idx + 64; struct drm_msm_gem_submit_bo *new_ptr = (struct drm_msm_gem_submit_bo *) vk_realloc(&dev->vk.alloc, dev->bo_list, new_len * sizeof(*dev->bo_list), 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE); if (!new_ptr) { dev->bo_count--; mtx_unlock(&dev->bo_mutex); vdrm_bo_close(dev->vdev->vdrm, bo->gem_handle); return VK_ERROR_OUT_OF_HOST_MEMORY; } dev->bo_list = new_ptr; dev->bo_list_size = new_len; } bool dump = flags & TU_BO_ALLOC_ALLOW_DUMP; dev->bo_list[idx] = (struct drm_msm_gem_submit_bo) { .flags = MSM_SUBMIT_BO_READ | MSM_SUBMIT_BO_WRITE | COND(dump, MSM_SUBMIT_BO_DUMP), .handle = bo->res_id, .presumed = iova, }; *bo = (struct tu_bo) { .gem_handle = gem_handle, .res_id = bo->res_id, .size = size, .iova = iova, .name = name, .refcnt = 1, .bo_list_idx = idx, .base = base, }; mtx_unlock(&dev->bo_mutex); return VK_SUCCESS; } /** * Sets the name in the kernel so that the contents of /debug/dri/0/gem are more * useful. * * We skip this on release builds (when we're also not doing BO debugging) to * reduce overhead. */ static void tu_bo_set_kernel_name(struct tu_device *dev, struct tu_bo *bo, const char *name) { bool kernel_bo_names = dev->bo_sizes != NULL; #if MESA_DEBUG kernel_bo_names = true; #endif if (!kernel_bo_names) return; size_t sz = strlen(name); unsigned req_len = sizeof(struct msm_ccmd_gem_set_name_req) + align(sz, 4); uint8_t buf[req_len]; struct msm_ccmd_gem_set_name_req *req = (struct msm_ccmd_gem_set_name_req *)buf; req->hdr = MSM_CCMD(GEM_SET_NAME, req_len); req->res_id = bo->res_id; req->len = sz; memcpy(req->payload, name, sz); vdrm_send_req(dev->vdev->vdrm, &req->hdr, false); } static VkResult virtio_bo_init(struct tu_device *dev, struct vk_object_base *base, struct tu_bo **out_bo, uint64_t size, uint64_t client_iova, VkMemoryPropertyFlags mem_property, enum tu_bo_alloc_flags flags, const char *name) { struct tu_virtio_device *vdev = dev->vdev; struct msm_ccmd_gem_new_req req = { .hdr = MSM_CCMD(GEM_NEW, sizeof(req)), .size = size, }; VkResult result; uint32_t res_id; struct tu_bo *bo; if (mem_property & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) { if (mem_property & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) { req.flags |= MSM_BO_CACHED_COHERENT; } else { req.flags |= MSM_BO_CACHED; } } else { req.flags |= MSM_BO_WC; } uint32_t blob_flags = 0; if (mem_property & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) { blob_flags |= VIRTGPU_BLOB_FLAG_USE_MAPPABLE; } if (!(mem_property & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT)) { blob_flags |= VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE | VIRTGPU_BLOB_FLAG_USE_SHAREABLE; } if (flags & TU_BO_ALLOC_GPU_READ_ONLY) req.flags |= MSM_BO_GPU_READONLY; assert(!(flags & TU_BO_ALLOC_DMABUF)); mtx_lock(&dev->vma_mutex); result = virtio_allocate_userspace_iova_locked(dev, 0, size, client_iova, flags, &req.iova); mtx_unlock(&dev->vma_mutex); if (result != VK_SUCCESS) return result; /* tunneled cmds are processed separately on host side, * before the renderer->get_blob() callback.. the blob_id * is used to link the created bo to the get_blob() call */ req.blob_id = p_atomic_inc_return(&vdev->next_blob_id);; uint32_t handle = vdrm_bo_create(vdev->vdrm, size, blob_flags, req.blob_id, &req.hdr); if (!handle) { result = VK_ERROR_OUT_OF_DEVICE_MEMORY; goto fail; } res_id = vdrm_handle_to_res_id(vdev->vdrm, handle); bo = tu_device_lookup_bo(dev, res_id); assert(bo && bo->gem_handle == 0); bo->res_id = res_id; result = tu_bo_init(dev, base, bo, handle, size, req.iova, flags, name); if (result != VK_SUCCESS) { memset(bo, 0, sizeof(*bo)); goto fail; } *out_bo = bo; /* We don't use bo->name here because for the !TU_DEBUG=bo case bo->name is NULL. */ tu_bo_set_kernel_name(dev, bo, name); if ((mem_property & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) && !(mem_property & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) { tu_bo_map(dev, bo, NULL); /* Cached non-coherent memory may already have dirty cache lines, * we should clean the cache lines before GPU got the chance to * write into this memory. * * MSM already does this automatically for uncached (MSM_BO_WC) memory. */ tu_bo_sync_cache(dev, bo, 0, VK_WHOLE_SIZE, TU_MEM_SYNC_CACHE_TO_GPU); } return VK_SUCCESS; fail: mtx_lock(&dev->vma_mutex); util_vma_heap_free(&dev->vma, req.iova, size); mtx_unlock(&dev->vma_mutex); return result; } static VkResult virtio_bo_init_dmabuf(struct tu_device *dev, struct tu_bo **out_bo, uint64_t size, int prime_fd) { struct vdrm_device *vdrm = dev->vdev->vdrm; VkResult result; struct tu_bo* bo = NULL; /* lseek() to get the real size */ off_t real_size = lseek(prime_fd, 0, SEEK_END); lseek(prime_fd, 0, SEEK_SET); if (real_size < 0 || (uint64_t) real_size < size) return vk_error(dev, VK_ERROR_INVALID_EXTERNAL_HANDLE); /* iova allocation needs to consider the object's *real* size: */ size = real_size; /* Importing the same dmabuf several times would yield the same * gem_handle. Thus there could be a race when destroying * BO and importing the same dmabuf from different threads. * We must not permit the creation of dmabuf BO and its release * to happen in parallel. */ u_rwlock_wrlock(&dev->dma_bo_lock); mtx_lock(&dev->vma_mutex); uint32_t handle, res_id; uint64_t iova; handle = vdrm_dmabuf_to_handle(vdrm, prime_fd); if (!handle) { result = vk_error(dev, VK_ERROR_INVALID_EXTERNAL_HANDLE); goto out_unlock; } res_id = vdrm_handle_to_res_id(vdrm, handle); if (!res_id) { /* XXX gem_handle potentially leaked here since no refcnt */ result = vk_error(dev, VK_ERROR_INVALID_EXTERNAL_HANDLE); goto out_unlock; } bo = tu_device_lookup_bo(dev, res_id); if (bo->refcnt != 0) { p_atomic_inc(&bo->refcnt); assert(bo->res_id == res_id); *out_bo = bo; result = VK_SUCCESS; goto out_unlock; } bo->res_id = res_id; result = virtio_allocate_userspace_iova_locked(dev, handle, size, 0, TU_BO_ALLOC_DMABUF, &iova); if (result != VK_SUCCESS) { vdrm_bo_close(dev->vdev->vdrm, handle); goto out_unlock; } result = tu_bo_init(dev, NULL, bo, handle, size, iova, TU_BO_ALLOC_NO_FLAGS, "dmabuf"); if (result != VK_SUCCESS) { util_vma_heap_free(&dev->vma, iova, size); memset(bo, 0, sizeof(*bo)); } else { *out_bo = bo; } out_unlock: mtx_unlock(&dev->vma_mutex); u_rwlock_wrunlock(&dev->dma_bo_lock); return result; } static VkResult virtio_bo_map(struct tu_device *dev, struct tu_bo *bo, void *placed_addr) { bo->map = vdrm_bo_map(dev->vdev->vdrm, bo->gem_handle, bo->size, placed_addr); if (bo->map == MAP_FAILED) return vk_error(dev, VK_ERROR_MEMORY_MAP_FAILED); return VK_SUCCESS; } static void virtio_bo_allow_dump(struct tu_device *dev, struct tu_bo *bo) { mtx_lock(&dev->bo_mutex); dev->bo_list[bo->bo_list_idx].flags |= MSM_SUBMIT_BO_DUMP; mtx_unlock(&dev->bo_mutex); } static VkResult tu_queue_submit_create_locked(struct tu_queue *queue, struct vk_queue_submit *vk_submit, const uint32_t nr_in_syncobjs, const uint32_t nr_out_syncobjs, uint32_t perf_pass_index, struct tu_virtio_queue_submit *new_submit) { VkResult result; bool u_trace_enabled = u_trace_should_process(&queue->device->trace_context); bool has_trace_points = false; struct vk_command_buffer **vk_cmd_buffers = vk_submit->command_buffers; memset(new_submit, 0, sizeof(struct tu_virtio_queue_submit)); new_submit->cmd_buffers = (struct tu_cmd_buffer **) vk_cmd_buffers; new_submit->nr_cmd_buffers = vk_submit->command_buffer_count; tu_insert_dynamic_cmdbufs(queue->device, &new_submit->cmd_buffers, &new_submit->nr_cmd_buffers); uint32_t entry_count = 0; for (uint32_t j = 0; j < new_submit->nr_cmd_buffers; ++j) { struct tu_cmd_buffer *cmdbuf = new_submit->cmd_buffers[j]; if (perf_pass_index != ~0) entry_count++; entry_count += cmdbuf->cs.entry_count; if (u_trace_enabled && u_trace_has_points(&cmdbuf->trace)) { if (!(cmdbuf->usage_flags & VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT)) entry_count++; has_trace_points = true; } } new_submit->autotune_fence = tu_autotune_submit_requires_fence(new_submit->cmd_buffers, new_submit->nr_cmd_buffers); if (new_submit->autotune_fence) entry_count++; /* Add one for the userspace fence cmd: */ entry_count += 1; new_submit->cmds = (struct drm_msm_gem_submit_cmd *) vk_zalloc( &queue->device->vk.alloc, entry_count * sizeof(*new_submit->cmds), 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE); if (new_submit->cmds == NULL) { result = vk_error(queue, VK_ERROR_OUT_OF_HOST_MEMORY); goto fail_cmds; } if (has_trace_points) { result = tu_u_trace_submission_data_create( queue->device, new_submit->cmd_buffers, new_submit->nr_cmd_buffers, &new_submit->u_trace_submission_data); if (result != VK_SUCCESS) { goto fail_u_trace_submission_data; } } /* Allocate without wait timeline semaphores */ new_submit->in_syncobjs = (struct drm_virtgpu_execbuffer_syncobj *) vk_zalloc( &queue->device->vk.alloc, nr_in_syncobjs * sizeof(*new_submit->in_syncobjs), 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE); if (new_submit->in_syncobjs == NULL) { result = vk_error(queue, VK_ERROR_OUT_OF_HOST_MEMORY); goto fail_in_syncobjs; } /* Allocate with signal timeline semaphores considered */ new_submit->out_syncobjs = (struct drm_virtgpu_execbuffer_syncobj *) vk_zalloc( &queue->device->vk.alloc, nr_out_syncobjs * sizeof(*new_submit->out_syncobjs), 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE); if (new_submit->out_syncobjs == NULL) { result = vk_error(queue, VK_ERROR_OUT_OF_HOST_MEMORY); goto fail_out_syncobjs; } new_submit->entry_count = entry_count; new_submit->nr_in_syncobjs = nr_in_syncobjs; new_submit->nr_out_syncobjs = nr_out_syncobjs; new_submit->perf_pass_index = perf_pass_index; new_submit->vk_submit = vk_submit; return VK_SUCCESS; fail_out_syncobjs: vk_free(&queue->device->vk.alloc, new_submit->in_syncobjs); fail_in_syncobjs: if (new_submit->u_trace_submission_data) tu_u_trace_submission_data_finish(queue->device, new_submit->u_trace_submission_data); fail_u_trace_submission_data: vk_free(&queue->device->vk.alloc, new_submit->cmds); fail_cmds: return result; } static void tu_queue_submit_finish(struct tu_queue *queue, struct tu_virtio_queue_submit *submit) { vk_free(&queue->device->vk.alloc, submit->cmds); vk_free(&queue->device->vk.alloc, submit->in_syncobjs); vk_free(&queue->device->vk.alloc, submit->out_syncobjs); if (submit->cmd_buffers != (void *) submit->vk_submit->command_buffers) vk_free(&queue->device->vk.alloc, submit->cmd_buffers); } static void tu_fill_msm_gem_submit(struct tu_device *dev, struct drm_msm_gem_submit_cmd *cmd, struct tu_cs_entry *cs_entry) { cmd->type = MSM_SUBMIT_CMD_BUF; cmd->submit_idx = cs_entry->bo->bo_list_idx; cmd->submit_offset = cs_entry->offset; cmd->size = cs_entry->size; cmd->pad = 0; cmd->nr_relocs = 0; cmd->relocs = 0; } static void tu_queue_build_msm_gem_submit_cmds(struct tu_queue *queue, struct tu_virtio_queue_submit *submit, struct tu_cs *autotune_cs) { struct tu_device *dev = queue->device; struct tu_virtio_device *vdev = dev->vdev; struct drm_msm_gem_submit_cmd *cmds = submit->cmds; uint32_t entry_idx = 0; for (uint32_t j = 0; j < submit->nr_cmd_buffers; ++j) { struct tu_device *dev = queue->device; struct tu_cmd_buffer *cmdbuf = submit->cmd_buffers[j]; struct tu_cs *cs = &cmdbuf->cs; if (submit->perf_pass_index != ~0) { struct tu_cs_entry *perf_cs_entry = &dev->perfcntrs_pass_cs_entries[submit->perf_pass_index]; tu_fill_msm_gem_submit(dev, &cmds[entry_idx], perf_cs_entry); entry_idx++; } for (unsigned i = 0; i < cs->entry_count; ++i, ++entry_idx) { tu_fill_msm_gem_submit(dev, &cmds[entry_idx], &cs->entries[i]); } if (submit->u_trace_submission_data) { struct tu_cs *ts_cs = submit->u_trace_submission_data->cmd_trace_data[j].timestamp_copy_cs; if (ts_cs) { tu_fill_msm_gem_submit(dev, &cmds[entry_idx], &ts_cs->entries[0]); entry_idx++; } } } if (autotune_cs) { assert(autotune_cs->entry_count == 1); tu_fill_msm_gem_submit(dev, &cmds[entry_idx], &autotune_cs->entries[0]); entry_idx++; } /* Last, add the userspace fence cmd: */ struct tu_userspace_fence_cmds *fcmds = vdev->fence_cmds; if (queue->fence <= 0) queue->fence = 0; uint32_t fence = ++queue->fence; int idx = fence % ARRAY_SIZE(fcmds->cmds); /* Wait for previous usage of fence cmd to be idle.. in practice the table * of recycled cmds should be big enough to never stall here: */ tu_wait_fence(dev, dev->queues[0]->msm_queue_id, fcmds->cmds[idx].fence, 3000000000); fcmds->cmds[idx].fence = fence; cmds[entry_idx].type = MSM_SUBMIT_CMD_BUF; cmds[entry_idx].submit_idx = vdev->fence_cmds_mem->bo_list_idx; cmds[entry_idx].submit_offset = ((intptr_t)&fcmds->cmds[idx]) - (intptr_t)fcmds; cmds[entry_idx].size = 5 * 4; cmds[entry_idx].pad = 0; cmds[entry_idx].nr_relocs = 0; cmds[entry_idx].relocs = 0; } static VkResult setup_fence_cmds(struct tu_device *dev) { struct tu_virtio_device *vdev = dev->vdev; VkResult result; result = tu_bo_init_new(dev, NULL, &vdev->fence_cmds_mem, sizeof(*vdev->fence_cmds), (enum tu_bo_alloc_flags) (TU_BO_ALLOC_ALLOW_DUMP | TU_BO_ALLOC_GPU_READ_ONLY), "fence_cmds"); if (result != VK_SUCCESS) return result; result = tu_bo_map(dev, vdev->fence_cmds_mem, NULL); if (result != VK_SUCCESS) return result; vdev->fence_cmds = (struct tu_userspace_fence_cmds *)vdev->fence_cmds_mem->map; uint64_t fence_iova = dev->global_bo->iova + gb_offset(userspace_fence); for (int i = 0; i < ARRAY_SIZE(vdev->fence_cmds->cmds); i++) { struct tu_userspace_fence_cmd *c = &vdev->fence_cmds->cmds[i]; memset(c, 0, sizeof(*c)); if (fd_dev_gen(&dev->physical_device->dev_id) >= A7XX) { c->pkt[0] = pm4_pkt7_hdr((uint8_t)CP_EVENT_WRITE7, 4); c->pkt[1] = CP_EVENT_WRITE7_0(.event = CACHE_FLUSH_TS, .write_src = EV_WRITE_USER_32B, .write_dst = EV_DST_RAM, .write_enabled = true).value; } else { c->pkt[0] = pm4_pkt7_hdr((uint8_t)CP_EVENT_WRITE, 4); c->pkt[1] = CP_EVENT_WRITE_0_EVENT(CACHE_FLUSH_TS); } c->pkt[2] = fence_iova; c->pkt[3] = fence_iova >> 32; } return result; } static VkResult tu_queue_submit_locked(struct tu_queue *queue, struct tu_virtio_queue_submit *submit) { struct tu_virtio_device *vdev = queue->device->vdev; queue->device->submit_count++; /* It would be nice to not need to defer this, but virtio_device_init() * happens before the device is initialized enough to allocate normal * GEM buffers */ if (!vdev->fence_cmds) { VkResult result = setup_fence_cmds(queue->device); if (result != VK_SUCCESS) return result; } struct tu_cs *autotune_cs = NULL; if (submit->autotune_fence) { autotune_cs = tu_autotune_on_submit(queue->device, &queue->device->autotune, submit->cmd_buffers, submit->nr_cmd_buffers); } uint32_t flags = MSM_PIPE_3D0; if (submit->vk_submit->wait_count) flags |= MSM_SUBMIT_SYNCOBJ_IN; if (submit->vk_submit->signal_count) flags |= MSM_SUBMIT_SYNCOBJ_OUT; mtx_lock(&queue->device->bo_mutex); if (queue->device->implicit_sync_bo_count == 0) flags |= MSM_SUBMIT_NO_IMPLICIT; /* drm_msm_gem_submit_cmd requires index of bo which could change at any * time when bo_mutex is not locked. So we build submit cmds here the real * place to submit. */ tu_queue_build_msm_gem_submit_cmds(queue, submit, autotune_cs); /* TODO avoid extra memcpy, and populate bo's and cmds directly * into the req msg */ unsigned nr_cmds = submit->entry_count; unsigned nr_bos = nr_cmds ? queue->device->bo_count : 0; unsigned bos_len = nr_bos * sizeof(struct drm_msm_gem_submit_bo); unsigned cmd_len = nr_cmds * sizeof(struct drm_msm_gem_submit_cmd); unsigned req_len = sizeof(struct msm_ccmd_gem_submit_req) + bos_len + cmd_len; struct msm_ccmd_gem_submit_req *req = (struct msm_ccmd_gem_submit_req *)vk_alloc( &queue->device->vk.alloc, req_len, 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE); if (!req) { mtx_unlock(&queue->device->bo_mutex); return vk_error(queue, VK_ERROR_OUT_OF_HOST_MEMORY); } req->hdr = MSM_CCMD(GEM_SUBMIT, req_len); req->flags = flags; req->queue_id = queue->msm_queue_id; req->nr_bos = nr_bos; req->nr_cmds = nr_cmds; /* Use same kernel fence and userspace fence seqno to avoid having * to track both: */ req->fence = queue->fence; memcpy(req->payload, queue->device->bo_list, bos_len); memcpy(req->payload + bos_len, submit->cmds, cmd_len); int ring_idx = queue->priority + 1; int ret; struct vdrm_execbuf_params p = { .ring_idx = ring_idx, .req = &req->hdr, .in_syncobjs = submit->in_syncobjs, .out_syncobjs = submit->out_syncobjs, .num_in_syncobjs = submit->nr_in_syncobjs, .num_out_syncobjs = submit->nr_out_syncobjs, }; ret = vdrm_execbuf(vdev->vdrm, &p); mtx_unlock(&queue->device->bo_mutex); tu_debug_bos_print_stats(queue->device); if (ret) return vk_device_set_lost(&queue->device->vk, "submit failed: %m"); uint64_t gpu_offset = 0; #if HAVE_PERFETTO struct tu_perfetto_clocks clocks = tu_perfetto_submit(queue->device, queue->device->submit_count, NULL); gpu_offset = clocks.gpu_ts_offset; #endif if (submit->u_trace_submission_data) { struct tu_u_trace_submission_data *submission_data = submit->u_trace_submission_data; submission_data->submission_id = queue->device->submit_count; submission_data->gpu_ts_offset = gpu_offset; /* We have to allocate it here since it is different between drm/kgsl */ submission_data->syncobj = (struct tu_u_trace_syncobj *) vk_alloc(&queue->device->vk.alloc, sizeof(struct tu_u_trace_syncobj), 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE); submission_data->syncobj->fence = req->fence; submission_data->syncobj->msm_queue_id = queue->msm_queue_id; submit->u_trace_submission_data = NULL; for (uint32_t i = 0; i < submission_data->cmd_buffer_count; i++) { bool free_data = i == submission_data->last_buffer_with_tracepoints; if (submission_data->cmd_trace_data[i].trace) u_trace_flush(submission_data->cmd_trace_data[i].trace, submission_data, queue->device->vk.current_frame, free_data); if (!submission_data->cmd_trace_data[i].timestamp_copy_cs) { /* u_trace is owned by cmd_buffer */ submission_data->cmd_trace_data[i].trace = NULL; } } } for (uint32_t i = 0; i < submit->vk_submit->wait_count; i++) { if (!vk_sync_is_tu_timeline_sync(submit->vk_submit->waits[i].sync)) continue; struct tu_timeline_sync *sync = container_of(submit->vk_submit->waits[i].sync, struct tu_timeline_sync, base); assert(sync->state != TU_TIMELINE_SYNC_STATE_RESET); /* Set SIGNALED to the state of the wait timeline sync since this means the syncobj * is done and ready again so this can be garbage-collectioned later. */ sync->state = TU_TIMELINE_SYNC_STATE_SIGNALED; } for (uint32_t i = 0; i < submit->vk_submit->signal_count; i++) { if (!vk_sync_is_tu_timeline_sync(submit->vk_submit->signals[i].sync)) continue; struct tu_timeline_sync *sync = container_of(submit->vk_submit->signals[i].sync, struct tu_timeline_sync, base); assert(sync->state == TU_TIMELINE_SYNC_STATE_RESET); /* Set SUBMITTED to the state of the signal timeline sync so we could wait for * this timeline sync until completed if necessary. */ sync->state = TU_TIMELINE_SYNC_STATE_SUBMITTED; } pthread_cond_broadcast(&queue->device->timeline_cond); return VK_SUCCESS; } static VkResult virtio_device_wait_u_trace(struct tu_device *dev, struct tu_u_trace_syncobj *syncobj) { return tu_wait_fence(dev, syncobj->msm_queue_id, syncobj->fence, 1000000000); } static VkResult virtio_queue_submit(struct tu_queue *queue, struct vk_queue_submit *submit) { MESA_TRACE_FUNC(); uint32_t perf_pass_index = queue->device->perfcntrs_pass_cs ? submit->perf_pass_index : ~0; struct tu_virtio_queue_submit submit_req; if (TU_DEBUG(LOG_SKIP_GMEM_OPS)) { tu_dbg_log_gmem_load_store_skips(queue->device); } pthread_mutex_lock(&queue->device->submit_mutex); VkResult ret = tu_queue_submit_create_locked(queue, submit, submit->wait_count, submit->signal_count, perf_pass_index, &submit_req); if (ret != VK_SUCCESS) { pthread_mutex_unlock(&queue->device->submit_mutex); return ret; } /* note: assuming there won't be any very large semaphore counts */ struct drm_virtgpu_execbuffer_syncobj *in_syncobjs = submit_req.in_syncobjs; struct drm_virtgpu_execbuffer_syncobj *out_syncobjs = submit_req.out_syncobjs; uint32_t nr_in_syncobjs = 0, nr_out_syncobjs = 0; for (uint32_t i = 0; i < submit->wait_count; i++) { struct vk_sync *sync = submit->waits[i].sync; in_syncobjs[nr_in_syncobjs++] = (struct drm_virtgpu_execbuffer_syncobj) { .handle = tu_syncobj_from_vk_sync(sync), .flags = 0, .point = submit->waits[i].wait_value, }; } for (uint32_t i = 0; i < submit->signal_count; i++) { struct vk_sync *sync = submit->signals[i].sync; out_syncobjs[nr_out_syncobjs++] = (struct drm_virtgpu_execbuffer_syncobj) { .handle = tu_syncobj_from_vk_sync(sync), .flags = 0, .point = submit->signals[i].signal_value, }; } ret = tu_queue_submit_locked(queue, &submit_req); pthread_mutex_unlock(&queue->device->submit_mutex); tu_queue_submit_finish(queue, &submit_req); if (ret != VK_SUCCESS) return ret; u_trace_context_process(&queue->device->trace_context, false); return VK_SUCCESS; } static const struct tu_knl virtio_knl_funcs = { .name = "virtgpu", .device_init = virtio_device_init, .device_finish = virtio_device_finish, .device_get_gpu_timestamp = virtio_device_get_gpu_timestamp, .device_get_suspend_count = virtio_device_get_suspend_count, .device_check_status = virtio_device_check_status, .submitqueue_new = virtio_submitqueue_new, .submitqueue_close = virtio_submitqueue_close, .bo_init = virtio_bo_init, .bo_init_dmabuf = virtio_bo_init_dmabuf, .bo_export_dmabuf = tu_drm_export_dmabuf, .bo_map = virtio_bo_map, .bo_allow_dump = virtio_bo_allow_dump, .bo_finish = tu_drm_bo_finish, .device_wait_u_trace = virtio_device_wait_u_trace, .queue_submit = virtio_queue_submit, }; VkResult tu_knl_drm_virtio_load(struct tu_instance *instance, int fd, struct _drmVersion *version, struct tu_physical_device **out) { struct virgl_renderer_capset_drm caps; struct vdrm_device *vdrm; VkResult result = VK_SUCCESS; uint64_t val; /* Debug option to force fallback to venus: */ if (debug_get_bool_option("TU_NO_VIRTIO", false)) return VK_ERROR_INCOMPATIBLE_DRIVER; if (drmGetCap(fd, DRM_CAP_SYNCOBJ, &val) || !val) { return vk_startup_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER, "kernel driver for device %s does not support DRM_CAP_SYNC_OBJ", version->name); } vdrm = vdrm_device_connect(fd, VIRTGPU_DRM_CONTEXT_MSM); if (!vdrm) { return vk_startup_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER, "could not get connect vdrm: %s", strerror(errno)); } caps = vdrm->caps; vdrm_device_close(vdrm); mesa_logd("wire_format_version: %u", caps.wire_format_version); mesa_logd("version_major: %u", caps.version_major); mesa_logd("version_minor: %u", caps.version_minor); mesa_logd("version_patchlevel: %u", caps.version_patchlevel); mesa_logd("has_cached_coherent: %u", caps.u.msm.has_cached_coherent); mesa_logd("va_start: 0x%0" PRIx64, caps.u.msm.va_start); mesa_logd("va_size: 0x%0" PRIx64, caps.u.msm.va_size); mesa_logd("gpu_id: %u", caps.u.msm.gpu_id); mesa_logd("gmem_size: %u", caps.u.msm.gmem_size); mesa_logd("gmem_base: 0x%0" PRIx64, caps.u.msm.gmem_base); mesa_logd("chip_id: 0x%0" PRIx64, caps.u.msm.chip_id); mesa_logd("max_freq: %u", caps.u.msm.max_freq); if (caps.wire_format_version != 2) { return vk_startup_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER, "Unsupported protocol version: %u", caps.wire_format_version); } if ((caps.version_major != 1) || (caps.version_minor < 9)) { return vk_startup_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER, "unsupported version: %u.%u.%u", caps.version_major, caps.version_minor, caps.version_patchlevel); } if (!caps.u.msm.va_size) { return vk_startup_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER, "No address space"); } struct tu_physical_device *device = (struct tu_physical_device *) vk_zalloc(&instance->vk.alloc, sizeof(*device), 8, VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE); if (!device) { result = vk_error(instance, VK_ERROR_OUT_OF_HOST_MEMORY); goto fail; } device->msm_major_version = caps.version_major; device->msm_minor_version = caps.version_minor; device->instance = instance; device->local_fd = fd; device->dev_id.gpu_id = caps.u.msm.gpu_id; device->dev_id.chip_id = caps.u.msm.chip_id; device->gmem_size = caps.u.msm.gmem_size; device->gmem_base = caps.u.msm.gmem_base; device->va_start = caps.u.msm.va_start; device->va_size = caps.u.msm.va_size; device->has_set_iova = true; device->gmem_size = debug_get_num_option("TU_GMEM", device->gmem_size); device->has_cached_coherent_memory = caps.u.msm.has_cached_coherent; device->submitqueue_priority_count = caps.u.msm.priorities; device->syncobj_type = vk_drm_syncobj_get_type(fd); /* we don't support DRM_CAP_SYNCOBJ_TIMELINE, but drm-shim does */ if (!(device->syncobj_type.features & VK_SYNC_FEATURE_TIMELINE)) device->timeline_type = vk_sync_timeline_get_type(&tu_timeline_sync_type); device->sync_types[0] = &device->syncobj_type; device->sync_types[1] = &device->timeline_type.sync; device->sync_types[2] = NULL; device->heap.size = tu_get_system_heap_size(device); device->heap.used = 0u; device->heap.flags = VK_MEMORY_HEAP_DEVICE_LOCAL_BIT; instance->knl = &virtio_knl_funcs; *out = device; return VK_SUCCESS; fail: vk_free(&instance->vk.alloc, device); return result; }