180 lines
7.0 KiB
C
180 lines
7.0 KiB
C
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/***********************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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#ifndef __CVMX_CSR_DB_H__
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#define __CVMX_CSR_DB_H__
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/**
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* @file
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* Interface for the Octeon CSR database.
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*
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*
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* <hr>$Revision: 41586 $<hr>
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*
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*/
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#include "cvmx-platform.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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CVMX_CSR_DB_TYPE_RSL, /**< Octeon internal address, but indirect and slow (not used for addresses) */
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CVMX_CSR_DB_TYPE_NCB, /**< Octeon internal address */
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CVMX_CSR_DB_TYPE_PCI_NCB, /**< Can be accessed through PCI BAR0, also an NCB alias (not used for addresses) */
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CVMX_CSR_DB_TYPE_PCICONFIG, /**< PCI Config, also an NCB alias */
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CVMX_CSR_DB_TYPE_PCI, /**< PCI BAR0 (only) */
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CVMX_CSR_DB_TYPE_PEXP, /**< PCIe BAR 0 address only */
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CVMX_CSR_DB_TYPE_PEXP_NCB, /**< NCB-direct and PCIe BAR0 address */
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CVMX_CSR_DB_TYPE_PCICONFIGEP, /**< PCIe config address (EP mode) + indirect through PESC*_CFG_RD/PESC*_CFG_WR */
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CVMX_CSR_DB_TYPE_PCICONFIGRC /**< PCICONFIGRC - PCIe config address (RC mode) + indirect through PESC*_CFG_RD/PESC*_CFG_WR */
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} CVMX_CSR_DB_TYPE_FIELD;
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/**
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* the structure for the cvmx_csr_db_addresses[] array that
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* holds all possible Octeon CSR addresses
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*/
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typedef struct {
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char * name; /**< CSR name at the supplied address */
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uint64_t address; /**< Address = octeon internal, PCI BAR0 relative, PCI CONFIG relative */
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CVMX_CSR_DB_TYPE_FIELD type:8; /**< the type */
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uint8_t widthbits; /**< the width of the CSR in bits */
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uint16_t csroff; /**< position of the CSR in cvmx_csr_db[] */
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} __attribute__ ((packed)) CVMX_CSR_DB_ADDRESS_TYPE;
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/**
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* the structure for the cvmx_csr_db_fields[] array that
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* holds all possible Octeon CSR fields
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*/
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typedef struct {
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char * name; /**< name of the field */
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uint8_t startbit; /**< starting bit position of the field */
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uint8_t sizebits; /**< the size of the field in bits */
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uint16_t csroff; /**< position of the CSR containing the field in cvmx_csr_db[] (get alias from there) */
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char * type; /**< the type of the field R/W, R/W1C, ... */
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uint8_t rst_unp; /**< set if the reset value is unknown */
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uint8_t typ_unp; /**< set if the typical value is unknown */
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uint64_t rst_val; /**< the reset value of the field */
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uint64_t typ_val; /**< the typical value of the field */
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} __attribute__ ((packed)) CVMX_CSR_DB_FIELD_TYPE;
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/**
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* the structure for the cvmx_csr_db[] array that holds all
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* possible Octeon CSR forms
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*/
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typedef struct {
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char *basename; /**< the base name of the CSR */
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CVMX_CSR_DB_TYPE_FIELD type:8; /**< the type */
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uint8_t widthbits; /**< the width of the CSR in bits */
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uint16_t addoff; /**< the position of the first address in cvmx_csr_db_csr_addresses[] (numblocks*indexnum is #) */
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uint8_t numfields; /**< the number of fields in the CSR (and in cvmx_csr_db_csr_fields[]) */
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uint16_t fieldoff; /**< the position of the first field in cvmx_csr_db_csr_fields[] */
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} __attribute__ ((packed)) CVMX_CSR_DB_TYPE;
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/**
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* This NULL terminated array contains the CVMX_CSR_DB_TYPE
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* arrays for each chip. Each array entry is another NULL
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* terminated array of CSRs.
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*/
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extern const CVMX_CSR_DB_TYPE *cvmx_csr_db[];
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/**
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* This NULL terminated array contains the CVMX_CSR_DB_ADDRESS_TYPE
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* arrays for each chip. Each array entry is another NULL
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* terminated array of CSR addresses.
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*/
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extern const CVMX_CSR_DB_ADDRESS_TYPE *cvmx_csr_db_addresses[];
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/**
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* This NULL terminated array contains the CVMX_CSR_DB_FIELD_TYPE
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* arrays for each chip. Each array entry is another NULL
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* terminated array of CSR fields.
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*/
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extern const CVMX_CSR_DB_FIELD_TYPE *cvmx_csr_db_fields[];
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/**
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* Figure out which database to use for this chip. The passed
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* identifier can be a processor ID or a PCI ID.
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*
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* @param identifier processor ID or a PCI ID
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*
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* @return index into the csr db
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*/
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extern int cvmx_db_get_chipindex(int identifier);
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/**
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* Get the CSR DB entry for the passed Octeon model and CSR name. The
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* model can either be specified as a processor id or PCI id.
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*
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* @param identifier Identifer to choose the CSR DB with
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* @param name CSR name to lookup
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*
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* @return CSR DB entry or NULL on failure
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*/
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extern const CVMX_CSR_DB_ADDRESS_TYPE *cvmx_csr_db_get(int identifier, const char *name);
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/**
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* Decode a CSR value into named bitfields. The model can either
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* be specified as a processor id or PCI id.
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*
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* @param identifier Identifer to choose the CSR DB with
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* @param address CSR address being decoded
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* @param value Value to decode
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*/
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extern void cvmx_csr_db_decode(int identifier, uint64_t address, uint64_t value);
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/**
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* Print a list of csrs begimning with a prefix. The
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* model can either be specified as a processor id or PCI id.
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*
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* @param identifier Identifer to choose the CSR DB with
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* @param prefix Beginning prefix to look for
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*/
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extern void cvmx_csr_db_display_list(int identifier, const char *prefix);
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#ifdef __cplusplus
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}
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#endif
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#endif
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