219d14fe5f
Executive is a library that can be used by standalone applications and kernels to abstract access to Octeon SoC and board-specific hardware and facilities. The FreeBSD port to Octeon will be updated to use this where possible.
128 lines
4.0 KiB
C
128 lines
4.0 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* * Neither the name of Cavium Networks nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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*
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
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* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
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* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
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* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
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* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
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* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
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* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET
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* POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT
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* OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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*
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*
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* For any questions regarding licensing please contact marketing@caviumnetworks.com
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*
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***********************license end**************************************/
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/**
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* @file
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*
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* Source file for the zip (deflate) block
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*
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* <hr>$Revision: 41586 $<hr>
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*/
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#include "executive-config.h"
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#include "cvmx-config.h"
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#include "cvmx.h"
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#include "cvmx-cmd-queue.h"
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#include "cvmx-zip.h"
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#ifdef CVMX_ENABLE_PKO_FUNCTIONS
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/**
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* Initialize the ZIP block
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*
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* @return Zero on success, negative on failure
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*/
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int cvmx_zip_initialize(void)
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{
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cvmx_zip_cmd_buf_t zip_cmd_buf;
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cvmx_cmd_queue_result_t result;
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result = cvmx_cmd_queue_initialize(CVMX_CMD_QUEUE_ZIP, 0,
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CVMX_FPA_OUTPUT_BUFFER_POOL,
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CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE);
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if (result != CVMX_CMD_QUEUE_SUCCESS)
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return -1;
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zip_cmd_buf.u64 = 0;
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zip_cmd_buf.s.dwb = CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE/128;
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zip_cmd_buf.s.pool = CVMX_FPA_OUTPUT_BUFFER_POOL;
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zip_cmd_buf.s.size = CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE/8;
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zip_cmd_buf.s.ptr = cvmx_ptr_to_phys(cvmx_cmd_queue_buffer(CVMX_CMD_QUEUE_ZIP))>>7;
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cvmx_write_csr(CVMX_ZIP_CMD_BUF, zip_cmd_buf.u64);
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cvmx_write_csr(CVMX_ZIP_ERROR, 1);
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cvmx_read_csr(CVMX_ZIP_CMD_BUF); /* Read to make sure setup is complete */
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return 0;
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}
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/**
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* Shutdown the ZIP block. ZIP must be idle when
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* this function is called.
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*
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* @return Zero on success, negative on failure
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*/
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int cvmx_zip_shutdown(void)
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{
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cvmx_zip_cmd_ctl_t zip_cmd_ctl;
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if (cvmx_cmd_queue_length(CVMX_CMD_QUEUE_ZIP))
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{
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cvmx_dprintf("ERROR: cvmx_zip_shutdown: ZIP not idle.\n");
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return -1;
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}
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zip_cmd_ctl.u64 = cvmx_read_csr(CVMX_ZIP_CMD_CTL);
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zip_cmd_ctl.s.reset = 1;
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cvmx_write_csr(CVMX_ZIP_CMD_CTL, zip_cmd_ctl.u64);
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cvmx_wait(100);
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cvmx_cmd_queue_shutdown(CVMX_CMD_QUEUE_ZIP);
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return 0;
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}
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/**
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* Submit a command to the ZIP block
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*
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* @param command Zip command to submit
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*
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* @return Zero on success, negative on failure
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*/
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int cvmx_zip_submit(cvmx_zip_command_t *command)
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{
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cvmx_cmd_queue_result_t result = cvmx_cmd_queue_write(CVMX_CMD_QUEUE_ZIP, 1, 8, command->u64);
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if (result == CVMX_CMD_QUEUE_SUCCESS)
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cvmx_write_csr(CVMX_ADDR_DID(CVMX_FULL_DID(7, 0)), 8);
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return result;
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}
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#endif
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