+ if (!(td->flags & TD_F_MMAP_KEEP))
+ unlink(td->o.mmapfile);
+ free(td->o.mmapfile);
+ }
+}
+
+static int alloc_mem_malloc(struct thread_data *td, size_t total_mem)
+{
+ td->orig_buffer = malloc(total_mem);
+ dprint(FD_MEM, "malloc %llu %p\n", (unsigned long long) total_mem,
+ td->orig_buffer);
+
+ return td->orig_buffer == NULL;
+}
+
+static void free_mem_malloc(struct thread_data *td)
+{
+ dprint(FD_MEM, "free malloc mem %p\n", td->orig_buffer);
+ free(td->orig_buffer);
+}
+
+static int alloc_mem_cudamalloc(struct thread_data *td, size_t total_mem)
+{
+#ifdef CONFIG_CUDA
+ CUresult ret;
+ char name[128];
+
+ ret = cuInit(0);
+ if (ret != CUDA_SUCCESS) {
+ log_err("fio: failed initialize cuda driver api\n");
+ return 1;
+ }
+
+ ret = cuDeviceGetCount(&td->gpu_dev_cnt);
+ if (ret != CUDA_SUCCESS) {
+ log_err("fio: failed get device count\n");
+ return 1;
+ }
+ dprint(FD_MEM, "found %d GPU devices\n", td->gpu_dev_cnt);
+
+ if (td->gpu_dev_cnt == 0) {
+ log_err("fio: no GPU device found. "
+ "Can not perform GPUDirect RDMA.\n");
+ return 1;
+ }
+
+ td->gpu_dev_id = td->o.gpu_dev_id;
+ ret = cuDeviceGet(&td->cu_dev, td->gpu_dev_id);
+ if (ret != CUDA_SUCCESS) {
+ log_err("fio: failed get GPU device\n");
+ return 1;
+ }
+
+ ret = cuDeviceGetName(name, sizeof(name), td->gpu_dev_id);
+ if (ret != CUDA_SUCCESS) {
+ log_err("fio: failed get device name\n");
+ return 1;
+ }
+ dprint(FD_MEM, "dev_id = [%d], device name = [%s]\n", \
+ td->gpu_dev_id, name);
+
+ ret = cuCtxCreate(&td->cu_ctx, CU_CTX_MAP_HOST, td->cu_dev);
+ if (ret != CUDA_SUCCESS) {
+ log_err("fio: failed to create cuda context: %d\n", ret);
+ return 1;
+ }
+
+ ret = cuMemAlloc(&td->dev_mem_ptr, total_mem);
+ if (ret != CUDA_SUCCESS) {
+ log_err("fio: cuMemAlloc %zu bytes failed\n", total_mem);
+ return 1;
+ }
+ td->orig_buffer = (void *) td->dev_mem_ptr;
+
+ dprint(FD_MEM, "cudaMalloc %llu %p\n", \
+ (unsigned long long) total_mem, td->orig_buffer);
+ return 0;
+#else
+ return -EINVAL;
+#endif
+}
+
+static void free_mem_cudamalloc(struct thread_data *td)
+{
+#ifdef CONFIG_CUDA
+ if (td->dev_mem_ptr != NULL)
+ cuMemFree(td->dev_mem_ptr);
+
+ if (cuCtxDestroy(td->cu_ctx) != CUDA_SUCCESS)
+ log_err("fio: failed to destroy cuda context\n");
+#endif
+}
+
+/*
+ * Set up the buffer area we need for io.
+ */
+int allocate_io_mem(struct thread_data *td)
+{
+ size_t total_mem;
+ int ret = 0;
+
+ if (td_ioengine_flagged(td, FIO_NOIO))
+ return 0;
+
+ total_mem = td->orig_buffer_size;
+
+ if (td->o.odirect || td->o.mem_align || td->o.oatomic ||
+ td_ioengine_flagged(td, FIO_MEMALIGN)) {
+ total_mem += page_mask;
+ if (td->o.mem_align && td->o.mem_align > page_size)
+ total_mem += td->o.mem_align - page_size;
+ }
+
+ dprint(FD_MEM, "Alloc %llu for buffers\n", (unsigned long long) total_mem);
+
+ /*
+ * If the IO engine has hooks to allocate/free memory, use those. But
+ * error out if the user explicitly asked for something else.
+ */
+ if (td->io_ops->iomem_alloc) {
+ if (fio_option_is_set(&td->o, mem_type)) {
+ log_err("fio: option 'mem/iomem' conflicts with specified IO engine\n");
+ ret = 1;
+ } else
+ ret = td->io_ops->iomem_alloc(td, total_mem);
+ } else if (td->o.mem_type == MEM_MALLOC)
+ ret = alloc_mem_malloc(td, total_mem);
+ else if (td->o.mem_type == MEM_SHM || td->o.mem_type == MEM_SHMHUGE)
+ ret = alloc_mem_shm(td, total_mem);
+ else if (td->o.mem_type == MEM_MMAP || td->o.mem_type == MEM_MMAPHUGE ||
+ td->o.mem_type == MEM_MMAPSHARED)
+ ret = alloc_mem_mmap(td, total_mem);
+ else if (td->o.mem_type == MEM_CUDA_MALLOC)
+ ret = alloc_mem_cudamalloc(td, total_mem);
+ else {
+ log_err("fio: bad mem type: %d\n", td->o.mem_type);
+ ret = 1;
+ }
+
+ if (ret)
+ td_verror(td, ENOMEM, "iomem allocation");
+
+ return ret;
+}
+
+void free_io_mem(struct thread_data *td)
+{
+ unsigned int total_mem;
+
+ total_mem = td->orig_buffer_size;
+ if (td->o.odirect || td->o.oatomic)
+ total_mem += page_mask;
+
+ if (td->io_ops->iomem_alloc) {
+ if (td->io_ops->iomem_free)
+ td->io_ops->iomem_free(td);
+ } else if (td->o.mem_type == MEM_MALLOC)
+ free_mem_malloc(td);
+ else if (td->o.mem_type == MEM_SHM || td->o.mem_type == MEM_SHMHUGE)
+ free_mem_shm(td);
+ else if (td->o.mem_type == MEM_MMAP || td->o.mem_type == MEM_MMAPHUGE ||
+ td->o.mem_type == MEM_MMAPSHARED)
+ free_mem_mmap(td, total_mem);
+ else if (td->o.mem_type == MEM_CUDA_MALLOC)
+ free_mem_cudamalloc(td);
+ else
+ log_err("Bad memory type %u\n", td->o.mem_type);