linux/drivers/gpu/drm/i915/gvt/firmware.c

/*
 * Copyright(c) 2011-2016 Intel 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 (including the next
 * paragraph) 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.
 *
 * Authors:
 *    Zhi Wang <[email protected]>
 *
 * Contributors:
 *    Changbin Du <[email protected]>
 *
 */

#include <linux/firmware.h>
#include <linux/crc32.h>
#include <linux/vmalloc.h>

#include "i915_drv.h"
#include "gvt.h"
#include "i915_pvinfo.h"

#define FIRMWARE_VERSION …

struct gvt_firmware_header { … };

#define dev_to_drm_minor(d) …

static BIN_ATTR_SIMPLE_ADMIN_RO(gvt_firmware);

static int expose_firmware_sysfs(struct intel_gvt *gvt)
{ … }

static void clean_firmware_sysfs(struct intel_gvt *gvt)
{ … }

/**
 * intel_gvt_free_firmware - free GVT firmware
 * @gvt: intel gvt device
 *
 */
void intel_gvt_free_firmware(struct intel_gvt *gvt)
{ … }

static int verify_firmware(struct intel_gvt *gvt,
			   const struct firmware *fw)
{ … }

#define GVT_FIRMWARE_PATH …

/**
 * intel_gvt_load_firmware - load GVT firmware
 * @gvt: intel gvt device
 *
 */
int intel_gvt_load_firmware(struct intel_gvt *gvt)
{ … }