mirror of https://github.com/F-Stack/f-stack.git
175 lines
5.0 KiB
C
175 lines
5.0 KiB
C
/***********************license start***************
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* Copyright (c) 2011 Cavium Inc. (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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* * Neither the name of Cavium Inc. 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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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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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 INC. MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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/**
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* @file
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*
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* Support library for the CN63XX, CN68XX hardware HFA engine.
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*
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*/
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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#include <asm/octeon/cvmx.h>
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#include <asm/octeon/cvmx-config.h>
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#include <asm/octeon/cvmx-pko.h>
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#include <asm/octeon/cvmx-helper.h>
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#include <asm/octeon/cvmx-clock.h>
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#include <asm/octeon/cvmx-dfa-defs.h>
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#include <asm/octeon/cvmx-hfa.h>
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#else
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#include "executive-config.h"
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#ifdef CVMX_ENABLE_DFA_FUNCTIONS
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#include "cvmx-config.h"
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#include "cvmx.h"
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#include "cvmx-fau.h"
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#include "cvmx-cmd-queue.h"
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#include "cvmx-hfa.h"
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#endif
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#endif
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#ifdef CVMX_ENABLE_DFA_FUNCTIONS
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/**
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* Initialize the DFA 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_hfa_initialize(void)
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{
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cvmx_dfa_difctl_t control;
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cvmx_cmd_queue_result_t result;
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void *initial_base_address;
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int cmdsize;
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cmdsize = ((CVMX_FPA_DFA_POOL_SIZE - 8) / sizeof (cvmx_dfa_command_t)) *
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sizeof (cvmx_dfa_command_t);
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result = cvmx_cmd_queue_initialize(CVMX_CMD_QUEUE_DFA, 0,
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CVMX_FPA_DFA_POOL, cmdsize + 8);
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if (result != CVMX_CMD_QUEUE_SUCCESS)
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return -1;
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control.u64 = 0;
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control.s.dwbcnt = CVMX_FPA_DFA_POOL_SIZE / 128;
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control.s.pool = CVMX_FPA_DFA_POOL;
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control.s.size = cmdsize / sizeof(cvmx_dfa_command_t);
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CVMX_SYNCWS;
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cvmx_write_csr(CVMX_DFA_DIFCTL, control.u64);
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initial_base_address = cvmx_cmd_queue_buffer(CVMX_CMD_QUEUE_DFA);
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CVMX_SYNCWS;
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cvmx_write_csr(CVMX_DFA_DIFRDPTR, cvmx_ptr_to_phys(initial_base_address));
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cvmx_read_csr(CVMX_DFA_DIFRDPTR); /* Read to make sure setup is complete */
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return 0;
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}
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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EXPORT_SYMBOL(cvmx_hfa_initialize);
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#endif
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/**
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* Shutdown the DFA block. DFA 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_hfa_shutdown(void)
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{
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if (cvmx_cmd_queue_length(CVMX_CMD_QUEUE_DFA))
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{
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cvmx_dprintf("ERROR: cvmx_hfa_shutdown: DFA not idle.\n");
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return -1;
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}
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cvmx_cmd_queue_shutdown(CVMX_CMD_QUEUE_DFA);
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return 0;
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}
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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EXPORT_SYMBOL(cvmx_hfa_shutdown);
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#endif
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/**
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* Submit a command to the DFA block
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*
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* @param command DFA 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_hfa_submit(cvmx_dfa_command_t *command)
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{
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cvmx_cmd_queue_result_t result = cvmx_cmd_queue_write(CVMX_CMD_QUEUE_DFA, 1, 4, command->u64);
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if (result == CVMX_CMD_QUEUE_SUCCESS)
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cvmx_write_csr(CVMX_DFA_DBELL, 1);
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return result;
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}
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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EXPORT_SYMBOL(cvmx_hfa_submit);
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#endif
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void *hfa_bootmem_alloc (uint64_t size, uint64_t alignment)
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{
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int64_t address;
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address = cvmx_bootmem_phy_alloc(size, 0, 0, alignment, 0);
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if (address > 0)
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return cvmx_phys_to_ptr(address);
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else
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return NULL;
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}
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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EXPORT_SYMBOL(hfa_bootmem_alloc);
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#endif
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int hfa_bootmem_free (void *ptr, uint64_t size)
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{
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uint64_t address;
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address = cvmx_ptr_to_phys (ptr);
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return __cvmx_bootmem_phy_free (address, size, 0);
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}
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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EXPORT_SYMBOL(hfa_bootmem_free);
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#endif
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#endif
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