1232809Sjmallett/***********************license start*************** 2232809Sjmallett * Copyright (c) 2011 Cavium Inc. (support@cavium.com). All rights 3232809Sjmallett * reserved. 4232809Sjmallett * 5232809Sjmallett * 6232809Sjmallett * Redistribution and use in source and binary forms, with or without 7232809Sjmallett * modification, are permitted provided that the following conditions are 8232809Sjmallett * met: 9232809Sjmallett * 10232809Sjmallett * * Redistributions of source code must retain the above copyright 11232809Sjmallett * notice, this list of conditions and the following disclaimer. 12232809Sjmallett * 13232809Sjmallett * * Redistributions in binary form must reproduce the above 14232809Sjmallett * copyright notice, this list of conditions and the following 15232809Sjmallett * disclaimer in the documentation and/or other materials provided 16232809Sjmallett * with the distribution. 17232809Sjmallett 18232809Sjmallett * * Neither the name of Cavium Inc. nor the names of 19232809Sjmallett * its contributors may be used to endorse or promote products 20232809Sjmallett * derived from this software without specific prior written 21232809Sjmallett * permission. 22232809Sjmallett 23232809Sjmallett * This Software, including technical data, may be subject to U.S. export control 24232809Sjmallett * laws, including the U.S. Export Administration Act and its associated 25232809Sjmallett * regulations, and may be subject to export or import regulations in other 26232809Sjmallett * countries. 27232809Sjmallett 28232809Sjmallett * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 29232809Sjmallett * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR 30232809Sjmallett * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO 31232809Sjmallett * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR 32232809Sjmallett * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM 33232809Sjmallett * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, 34232809Sjmallett * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF 35232809Sjmallett * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR 36232809Sjmallett * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR 37232809Sjmallett * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 38232809Sjmallett ***********************license end**************************************/ 39232809Sjmallett 40232809Sjmallett 41232809Sjmallett 42232809Sjmallett 43232809Sjmallett 44232809Sjmallett 45232809Sjmallett 46232809Sjmallett/** 47232809Sjmallett * @file 48232809Sjmallett * 49232809Sjmallett * Support library for the CN63XX, CN68XX hardware HFA engine. 50232809Sjmallett * 51232809Sjmallett */ 52232809Sjmallett#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 53232809Sjmallett#include <asm/octeon/cvmx.h> 54232809Sjmallett#include <asm/octeon/cvmx-config.h> 55232809Sjmallett#include <asm/octeon/cvmx-pko.h> 56232809Sjmallett#include <asm/octeon/cvmx-helper.h> 57232809Sjmallett#include <asm/octeon/cvmx-clock.h> 58232809Sjmallett#include <asm/octeon/cvmx-dfa-defs.h> 59232809Sjmallett#include <asm/octeon/cvmx-hfa.h> 60232809Sjmallett#else 61232809Sjmallett#include "executive-config.h" 62232809Sjmallett#ifdef CVMX_ENABLE_DFA_FUNCTIONS 63232809Sjmallett 64232809Sjmallett#include "cvmx-config.h" 65232809Sjmallett#include "cvmx.h" 66232809Sjmallett#include "cvmx-fau.h" 67232809Sjmallett#include "cvmx-cmd-queue.h" 68232809Sjmallett#include "cvmx-hfa.h" 69232809Sjmallett#endif 70232809Sjmallett#endif 71232809Sjmallett 72232809Sjmallett#ifdef CVMX_ENABLE_DFA_FUNCTIONS 73232809Sjmallett 74232809Sjmallett/** 75232809Sjmallett * Initialize the DFA block 76232809Sjmallett * 77232809Sjmallett * @return Zero on success, negative on failure 78232809Sjmallett */ 79232809Sjmallettint cvmx_hfa_initialize(void) 80232809Sjmallett{ 81232809Sjmallett cvmx_dfa_difctl_t control; 82232809Sjmallett cvmx_cmd_queue_result_t result; 83232809Sjmallett void *initial_base_address; 84232809Sjmallett int cmdsize; 85232809Sjmallett 86232809Sjmallett cmdsize = ((CVMX_FPA_DFA_POOL_SIZE - 8) / sizeof (cvmx_dfa_command_t)) * 87232809Sjmallett sizeof (cvmx_dfa_command_t); 88232809Sjmallett result = cvmx_cmd_queue_initialize(CVMX_CMD_QUEUE_DFA, 0, 89232809Sjmallett CVMX_FPA_DFA_POOL, cmdsize + 8); 90232809Sjmallett if (result != CVMX_CMD_QUEUE_SUCCESS) 91232809Sjmallett return -1; 92232809Sjmallett 93232809Sjmallett control.u64 = 0; 94232809Sjmallett control.s.dwbcnt = CVMX_FPA_DFA_POOL_SIZE / 128; 95232809Sjmallett control.s.pool = CVMX_FPA_DFA_POOL; 96232809Sjmallett control.s.size = cmdsize / sizeof(cvmx_dfa_command_t); 97232809Sjmallett CVMX_SYNCWS; 98232809Sjmallett cvmx_write_csr(CVMX_DFA_DIFCTL, control.u64); 99232809Sjmallett initial_base_address = cvmx_cmd_queue_buffer(CVMX_CMD_QUEUE_DFA); 100232809Sjmallett CVMX_SYNCWS; 101232809Sjmallett cvmx_write_csr(CVMX_DFA_DIFRDPTR, cvmx_ptr_to_phys(initial_base_address)); 102232809Sjmallett cvmx_read_csr(CVMX_DFA_DIFRDPTR); /* Read to make sure setup is complete */ 103232809Sjmallett return 0; 104232809Sjmallett} 105232809Sjmallett#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 106232809SjmallettEXPORT_SYMBOL(cvmx_hfa_initialize); 107232809Sjmallett#endif 108232809Sjmallett 109232809Sjmallett/** 110232809Sjmallett * Shutdown the DFA block. DFA must be idle when 111232809Sjmallett * this function is called. 112232809Sjmallett * 113232809Sjmallett * @return Zero on success, negative on failure 114232809Sjmallett */ 115232809Sjmallettint cvmx_hfa_shutdown(void) 116232809Sjmallett{ 117232809Sjmallett if (cvmx_cmd_queue_length(CVMX_CMD_QUEUE_DFA)) 118232809Sjmallett { 119232809Sjmallett cvmx_dprintf("ERROR: cvmx_hfa_shutdown: DFA not idle.\n"); 120232809Sjmallett return -1; 121232809Sjmallett } 122232809Sjmallett cvmx_cmd_queue_shutdown(CVMX_CMD_QUEUE_DFA); 123232809Sjmallett return 0; 124232809Sjmallett} 125232809Sjmallett#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 126232809SjmallettEXPORT_SYMBOL(cvmx_hfa_shutdown); 127232809Sjmallett#endif 128232809Sjmallett 129232809Sjmallett/** 130232809Sjmallett * Submit a command to the DFA block 131232809Sjmallett * 132232809Sjmallett * @param command DFA command to submit 133232809Sjmallett * 134232809Sjmallett * @return Zero on success, negative on failure 135232809Sjmallett */ 136232809Sjmallettint cvmx_hfa_submit(cvmx_dfa_command_t *command) 137232809Sjmallett{ 138232809Sjmallett cvmx_cmd_queue_result_t result = cvmx_cmd_queue_write(CVMX_CMD_QUEUE_DFA, 1, 4, command->u64); 139232809Sjmallett if (result == CVMX_CMD_QUEUE_SUCCESS) 140232809Sjmallett cvmx_write_csr(CVMX_DFA_DBELL, 1); 141232809Sjmallett return result; 142232809Sjmallett} 143232809Sjmallett#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 144232809SjmallettEXPORT_SYMBOL(cvmx_hfa_submit); 145232809Sjmallett#endif 146232809Sjmallett 147232809Sjmallettvoid *hfa_bootmem_alloc (uint64_t size, uint64_t alignment) 148232809Sjmallett{ 149232809Sjmallett int64_t address; 150232809Sjmallett 151232809Sjmallett address = cvmx_bootmem_phy_alloc(size, 0, 0, alignment, 0); 152232809Sjmallett 153232809Sjmallett if (address > 0) 154232809Sjmallett return cvmx_phys_to_ptr(address); 155232809Sjmallett else 156232809Sjmallett return NULL; 157232809Sjmallett} 158232809Sjmallett 159232809Sjmallett#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 160232809SjmallettEXPORT_SYMBOL(hfa_bootmem_alloc); 161232809Sjmallett#endif 162232809Sjmallett 163232809Sjmallettint hfa_bootmem_free (void *ptr, uint64_t size) 164232809Sjmallett{ 165232809Sjmallett uint64_t address; 166232809Sjmallett address = cvmx_ptr_to_phys (ptr); 167232809Sjmallett return __cvmx_bootmem_phy_free (address, size, 0); 168232809Sjmallett} 169232809Sjmallett 170232809Sjmallett#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 171232809SjmallettEXPORT_SYMBOL(hfa_bootmem_free); 172232809Sjmallett#endif 173232809Sjmallett 174232809Sjmallett#endif 175