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Diffstat (limited to 'sys/contrib/octeon-sdk/cvmx-power-throttle.h')
| -rw-r--r-- | sys/contrib/octeon-sdk/cvmx-power-throttle.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/sys/contrib/octeon-sdk/cvmx-power-throttle.h b/sys/contrib/octeon-sdk/cvmx-power-throttle.h new file mode 100644 index 0000000..7f921af --- /dev/null +++ b/sys/contrib/octeon-sdk/cvmx-power-throttle.h @@ -0,0 +1,137 @@ +/***********************license start*************** + * Copyright (c) 2003-2010 Cavium Networks (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 Networks 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 NETWORKS 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 + * + * Interface to power-throttle control, measurement, and debugging + * facilities. + * + * <hr>$Revision<hr> + * + */ + +#ifndef __CVMX_POWER_THROTTLE_H__ +#define __CVMX_POWER_THROTTLE_H__ +#ifdef __cplusplus +extern "C" { +#endif + +/** + * a field of the POWTHROTTLE register + */ +static struct cvmx_power_throttle_rfield_t { + char name[16]; /* the field's name */ + int32_t pos; /* position of the field's LSb */ + int32_t len; /* the field's length */ +} cvmx_power_throttle_rfield[] = { +#define CVMX_PTH_INDEX_MAXPOW 0 + {"MAXPOW", 56, 8}, +#define CVMX_PTH_INDEX_POWER 1 + {"POWER" , 48, 8}, +#define CVMX_PTH_INDEX_THROTT 2 + {"THROTT", 40, 8}, +#define CVMX_PTH_INDEX_RESERVED 3 + {"Reserved", 28, 12}, +#define CVMX_PTH_INDEX_DISTAG 4 + {"DISTAG", 27, 1}, +#define CVMX_PTH_INDEX_PERIOD 5 + {"PERIOD", 24, 3}, +#define CVMX_PTH_INDEX_POWLIM 6 + {"POWLIM", 16, 8}, +#define CVMX_PTH_INDEX_MAXTHR 7 + {"MAXTHR", 8, 8}, +#define CVMX_PTH_INDEX_MINTHR 8 + {"MINTHR", 0, 8} +#define CVMX_PTH_INDEX_MAX 9 +}; + +#define CVMX_PTH_GET_MASK(len, pos) \ + ((((uint64_t)1 << (len)) - 1) << (pos)) + +/** + * Get the i'th field of power-throttle register r. + */ +static inline uint64_t cvmx_power_throttle_get_field(int i, uint64_t r) +{ + if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) + { + uint64_t m; + struct cvmx_power_throttle_rfield_t *p; + + assert((i >= 0) && (i < CVMX_PTH_INDEX_MAX)); + + p = &cvmx_power_throttle_rfield[i]; + m = CVMX_PTH_GET_MASK(p->len, p->pos); + + return((r & m) >> p->pos); + } + return 0; +} + +/** + * Set the i'th field of power-throttle register r to v. + */ +static inline int cvmx_power_throttle_set_field(int i, uint64_t r, uint64_t v) +{ + if (OCTEON_IS_MODEL(OCTEON_CN6XXX)) + { + uint64_t m; + struct cvmx_power_throttle_rfield_t *p; + + assert((i >= 0) && (i < CVMX_PTH_INDEX_MAX)); + + p = &cvmx_power_throttle_rfield[i]; + m = CVMX_PTH_GET_MASK(p->len, p->pos); + + return((~m & r) | ((v << p->pos) & m)); + } + return 0; +} + +/** + * API Function Prototypes + */ +extern int cvmx_power_throttle_self(uint8_t percentage); +extern int cvmx_power_throttle(uint8_t percentage, uint64_t coremask); + +#ifdef __cplusplus +} +#endif +#endif /* __CVMX_POWER_THROTTLE_H__ */ |
