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/***********************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__ */
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