1 files changed, 72 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/firmware.h b/drivers/gpu/nvgpu/include/nvgpu/firmware.h
new file mode 100644
index 00000000..b541947a
--- /dev/null
+++ b/drivers/gpu/nvgpu/include/nvgpu/firmware.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#ifndef _NVGPU_FIRMWARE_H_
+#define _NVGPU_FIRMWARE_H_
+
+struct gk20a;
+
+#define NVGPU_REQUEST_FIRMWARE_NO_WARN          (1UL << 0)
+#define NVGPU_REQUEST_FIRMWARE_NO_SOC           (1UL << 1)
+
+struct nvgpu_firmware {
+        u8 *data;
+        size_t size;
+};
+
+/**
+ * nvgpu_request_firmware - load a firmware blob from filesystem.
+ *
+ * @g           The GPU driver struct for device to load firmware for
+ * @fw_name     The base name of the firmware file.
+ * @flags       Flags for loading;
+ *
+ *              NVGPU_REQUEST_FIRMWARE_NO_WARN: Do not display warning on
+ *              failed load.
+ *
+ *              NVGPU_REQUEST_FIRMWARE_NO_SOC: Do not attempt loading from
+ *              path <SOC_NAME>.
+ *
+ * nvgpu_request_firmware() will load firmware from:
+ *
+ * <system firmware load path>/<GPU name>/<fw_name>
+ *
+ * If that fails and NO_SOC is not enabled, it'll try next from:
+ *
+ * <system firmware load path>/<SOC name>/<fw_name>
+ *
+ * It'll allocate a nvgpu_firmware structure and initializes it and returns
+ * it to caller.
+ */
+struct nvgpu_firmware *nvgpu_request_firmware(struct gk20a *g,
+                                              const char *fw_name,
+                                              int flags);
+
+/**
+ * nvgpu_release_firmware - free firmware and associated nvgpu_firmware blob
+ *
+ * @g           The GPU driver struct for device to free firmware for
+ * @fw          The firmware to free. fw blob will also be freed.
+ */
+void nvgpu_release_firmware(struct gk20a *g, struct nvgpu_firmware *fw);
+
+#endif