linux/drivers/gpu/drm/vboxvideo/vbox_hgsmi.c

// SPDX-License-Identifier: MIT
/*
 * Copyright (C) 2017 Oracle Corporation
 * Authors: Hans de Goede <[email protected]>
 */

#include "vbox_drv.h"
#include "vboxvideo_vbe.h"
#include "hgsmi_defs.h"

/* One-at-a-Time Hash from https://www.burtleburtle.net/bob/hash/doobs.html */
static u32 hgsmi_hash_process(u32 hash, const u8 *data, int size)
{ … }

static u32 hgsmi_hash_end(u32 hash)
{ … }

/* Not really a checksum but that is the naming used in all vbox code */
static u32 hgsmi_checksum(u32 offset,
			  const struct hgsmi_buffer_header *header,
			  const struct hgsmi_buffer_tail *tail)
{ … }

void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
			 u8 channel, u16 channel_info)
{ … }

void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf)
{ … }

int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf)
{ … }