From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- drivers/crypto/cavium/zip/zip_mem.c | 114 ++++++++++++++++++++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 drivers/crypto/cavium/zip/zip_mem.c (limited to 'drivers/crypto/cavium/zip/zip_mem.c') diff --git a/drivers/crypto/cavium/zip/zip_mem.c b/drivers/crypto/cavium/zip/zip_mem.c new file mode 100644 index 000000000..b3e0843a9 --- /dev/null +++ b/drivers/crypto/cavium/zip/zip_mem.c @@ -0,0 +1,114 @@ +/***********************license start************************************ + * Copyright (c) 2003-2017 Cavium, Inc. + * All rights reserved. + * + * License: one of 'Cavium License' or 'GNU General Public License Version 2' + * + * This file is provided under the terms of the Cavium License (see below) + * or under the terms of GNU General Public License, Version 2, as + * published by the Free Software Foundation. When using or redistributing + * this file, you may do so under either license. + * + * Cavium License: Redistribution and use in source and binary forms, with + * or without modification, are permitted provided that the following + * conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * * Neither the name of Cavium Inc. nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * This Software, including technical data, may be subject to U.S. export + * control laws, including the U.S. Export Administration Act and its + * associated regulations, and may be subject to export or import + * regulations in other countries. + * + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" + * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS + * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH + * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY + * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT + * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) + * WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A + * PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET + * ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE + * ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES + * WITH YOU. + ***********************license end**************************************/ + +#include +#include + +#include "common.h" + +/** + * zip_cmd_qbuf_alloc - Allocates a cmd buffer for ZIP Instruction Queue + * @zip: Pointer to zip device structure + * @q: Queue number to allocate bufffer to + * Return: 0 if successful, -ENOMEM otherwise + */ +int zip_cmd_qbuf_alloc(struct zip_device *zip, int q) +{ + zip->iq[q].sw_head = (u64 *)__get_free_pages((GFP_KERNEL | GFP_DMA), + get_order(ZIP_CMD_QBUF_SIZE)); + + if (!zip->iq[q].sw_head) + return -ENOMEM; + + memset(zip->iq[q].sw_head, 0, ZIP_CMD_QBUF_SIZE); + + zip_dbg("cmd_qbuf_alloc[%d] Success : %p\n", q, zip->iq[q].sw_head); + return 0; +} + +/** + * zip_cmd_qbuf_free - Frees the cmd Queue buffer + * @zip: Pointer to zip device structure + * @q: Queue number to free buffer of + */ +void zip_cmd_qbuf_free(struct zip_device *zip, int q) +{ + zip_dbg("Freeing cmd_qbuf 0x%lx\n", zip->iq[q].sw_tail); + + free_pages((u64)zip->iq[q].sw_tail, get_order(ZIP_CMD_QBUF_SIZE)); +} + +/** + * zip_data_buf_alloc - Allocates memory for a data bufffer + * @size: Size of the buffer to allocate + * Returns: Pointer to the buffer allocated + */ +u8 *zip_data_buf_alloc(u64 size) +{ + u8 *ptr; + + ptr = (u8 *)__get_free_pages((GFP_KERNEL | GFP_DMA), + get_order(size)); + + if (!ptr) + return NULL; + + memset(ptr, 0, size); + + zip_dbg("Data buffer allocation success\n"); + return ptr; +} + +/** + * zip_data_buf_free - Frees the memory of a data buffer + * @ptr: Pointer to the buffer + * @size: Buffer size + */ +void zip_data_buf_free(u8 *ptr, u64 size) +{ + zip_dbg("Freeing data buffer 0x%lx\n", ptr); + + free_pages((u64)ptr, get_order(size)); +} -- cgit v1.2.3