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/***********************license start***************
* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
* reserved.
*
*
* 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**************************************/
/**
* @file
*
* Source file for the zip (deflate) block
*
* <hr>$Revision: 70030 $<hr>
*/
#include "executive-config.h"
#include "cvmx-config.h"
#include "cvmx.h"
#include "cvmx-cmd-queue.h"
#include "cvmx-zip.h"
#ifdef CVMX_ENABLE_PKO_FUNCTIONS
/**
* Initialize the ZIP block
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_initialize(void)
{
cvmx_zip_cmd_buf_t zip_cmd_buf;
cvmx_cmd_queue_result_t result;
result = cvmx_cmd_queue_initialize(CVMX_CMD_QUEUE_ZIP, 0,
CVMX_FPA_OUTPUT_BUFFER_POOL,
CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE);
if (result != CVMX_CMD_QUEUE_SUCCESS)
return -1;
zip_cmd_buf.u64 = 0;
zip_cmd_buf.s.dwb = CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE/128;
zip_cmd_buf.s.pool = CVMX_FPA_OUTPUT_BUFFER_POOL;
zip_cmd_buf.s.size = CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE/8;
zip_cmd_buf.s.ptr = cvmx_ptr_to_phys(cvmx_cmd_queue_buffer(CVMX_CMD_QUEUE_ZIP))>>7;
cvmx_write_csr(CVMX_ZIP_CMD_BUF, zip_cmd_buf.u64);
cvmx_write_csr(CVMX_ZIP_ERROR, 1);
cvmx_read_csr(CVMX_ZIP_CMD_BUF); /* Read to make sure setup is complete */
return 0;
}
/**
* Initialize the ZIP QUEUE buffer
*
* @param queue : ZIP instruction queue
* @param zcoremask : ZIP coremask to use for this queue
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_queue_initialize(int queue, int zcoremask)
{
cvmx_zip_quex_buf_t zip_que_buf;
cvmx_cmd_queue_result_t result;
cvmx_zip_quex_map_t que_map;
cvmx_zip_que_ena_t que_ena;
cvmx_zip_int_reg_t int_reg;
/* Previous Octeon models has only one instruction queue, call
cvmx_zip_inititalize() to initialize the ZIP block */
if (!OCTEON_IS_MODEL(OCTEON_CN68XX))
return -1;
result = cvmx_cmd_queue_initialize(CVMX_CMD_QUEUE_ZIP_QUE(queue), 0,
CVMX_FPA_OUTPUT_BUFFER_POOL,
CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE);
if (result != CVMX_CMD_QUEUE_SUCCESS)
return -1;
/* 1. Program ZIP_QUE0/1_BUF to have the correct buffer pointer and
size configured for each instruction queue */
zip_que_buf.u64 = 0;
zip_que_buf.s.dwb = CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE/128;
zip_que_buf.s.pool = CVMX_FPA_OUTPUT_BUFFER_POOL;
zip_que_buf.s.size = CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE/8;
zip_que_buf.s.ptr = cvmx_ptr_to_phys(cvmx_cmd_queue_buffer(CVMX_CMD_QUEUE_ZIP_QUE(queue)))>>7;
cvmx_write_csr(CVMX_ZIP_QUEX_BUF(queue), zip_que_buf.u64);
/* 2. Change the queue-to-ZIP core mapping by programming ZIP_QUE0/1_MAP. */
que_map.u64 = cvmx_read_csr(CVMX_ZIP_QUEX_MAP(queue));
que_map.s.zce = zcoremask;
cvmx_write_csr(CVMX_ZIP_QUEX_MAP(queue), que_map.u64);
/* Enable the queue */
que_ena.u64 = cvmx_read_csr(CVMX_ZIP_QUE_ENA);
que_ena.s.ena |= (1<<queue);
cvmx_write_csr(CVMX_ZIP_QUE_ENA, que_ena.u64);
/* Use round robin to have equal priority for each instruction queue */
cvmx_write_csr(CVMX_ZIP_QUE_PRI, 0x3);
int_reg.u64 = cvmx_read_csr(CVMX_ZIP_INT_REG);
if (queue)
int_reg.s.doorbell1 = 1;
else
int_reg.s.doorbell0 = 1;
cvmx_write_csr(CVMX_ZIP_INT_REG, int_reg.u64);
/* Read back to make sure the setup is complete */
cvmx_read_csr(CVMX_ZIP_QUEX_BUF(queue));
return 0;
}
/**
* Shutdown the ZIP block. ZIP must be idle when
* this function is called.
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_shutdown(void)
{
cvmx_zip_cmd_ctl_t zip_cmd_ctl;
if (cvmx_cmd_queue_length(CVMX_CMD_QUEUE_ZIP))
{
cvmx_dprintf("ERROR: cvmx_zip_shutdown: ZIP not idle.\n");
return -1;
}
zip_cmd_ctl.u64 = cvmx_read_csr(CVMX_ZIP_CMD_CTL);
zip_cmd_ctl.s.reset = 1;
cvmx_write_csr(CVMX_ZIP_CMD_CTL, zip_cmd_ctl.u64);
cvmx_wait(100);
cvmx_cmd_queue_shutdown(CVMX_CMD_QUEUE_ZIP);
return 0;
}
/**
* Shutdown the ZIP block for a queue. ZIP must be idle when
* this function is called.
*
* @param queue Zip instruction queue of the command
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_queue_shutdown(int queue)
{
cvmx_zip_cmd_ctl_t zip_cmd_ctl;
if (cvmx_cmd_queue_length(CVMX_CMD_QUEUE_ZIP_QUE(queue)))
{
cvmx_dprintf("ERROR: cvmx_zip_shutdown: ZIP not idle.\n");
return -1;
}
zip_cmd_ctl.u64 = cvmx_read_csr(CVMX_ZIP_CMD_CTL);
zip_cmd_ctl.s.reset = 1;
cvmx_write_csr(CVMX_ZIP_CMD_CTL, zip_cmd_ctl.u64);
cvmx_wait(100);
cvmx_cmd_queue_shutdown(CVMX_CMD_QUEUE_ZIP_QUE(queue));
return 0;
}
/**
* Submit a command to the ZIP block
*
* @param command Zip command to submit
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_submit(cvmx_zip_command_t *command)
{
cvmx_cmd_queue_result_t result = cvmx_cmd_queue_write(CVMX_CMD_QUEUE_ZIP, 1, 8, command->u64);
if (result == CVMX_CMD_QUEUE_SUCCESS)
cvmx_write_csr(CVMX_ADDR_DID(CVMX_FULL_DID(7, 0)), 8);
return result;
}
/**
* Submit a command to the ZIP block
*
* @param command Zip command to submit
* @param queue Zip instruction queue of the command
*
* @return Zero on success, negative on failure
*/
int cvmx_zip_queue_submit(cvmx_zip_command_t *command, int queue)
{
cvmx_cmd_queue_result_t result = cvmx_cmd_queue_write(CVMX_CMD_QUEUE_ZIP_QUE(queue), 1, 8, command->u64);
if (result == CVMX_CMD_QUEUE_SUCCESS)
cvmx_write_csr((CVMX_ADDR_DID(CVMX_FULL_DID(7, 0)) | queue << 3), 8);
return result;
}
#endif
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