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| Current File : //usr/src/sys/contrib/octeon-sdk/octeon-model.c |
/***********************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
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*
* * 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
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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***********************license end**************************************/
/**
* @file
*
* File defining functions for working with different Octeon
* models.
*
* <hr>$Revision: 49922 $<hr>
*/
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-clock.h>
#else
#include "cvmx.h"
#include "cvmx-pow.h"
#include "cvmx-warn.h"
#endif
#if defined(CVMX_BUILD_FOR_LINUX_USER) || defined(CVMX_BUILD_FOR_STANDALONE)
#include <octeon-app-init.h>
#include "cvmx-sysinfo.h"
/**
* This function checks to see if the software is compatible with the
* chip it is running on. This is called in the application startup code
* and does not need to be called directly by the application.
* Does not return if software is incompatible.
*
* @param chip_id chip id that the software is being run on.
*
* @return 0: runtime checking or exact version match
* 1: chip is newer revision than compiled for, but software will run properly.
*/
int octeon_model_version_check(uint32_t chip_id)
{
//printf("Model Number: %s\n", octeon_model_get_string(chip_id));
#if !OCTEON_IS_COMMON_BINARY()
/* Check for special case of mismarked 3005 samples, and adjust cpuid */
if (chip_id == OCTEON_CN3010_PASS1 && (cvmx_read_csr(0x80011800800007B8ull) & (1ull << 34)))
chip_id |= 0x10;
if ((OCTEON_MODEL & 0xffffff) != chip_id)
{
if (!OCTEON_IS_MODEL((OM_IGNORE_REVISION | chip_id)) || (OCTEON_MODEL & 0xffffff) > chip_id || (((OCTEON_MODEL & 0xffffff) ^ chip_id) & 0x10))
{
printf("ERROR: Software not configured for this chip\n"
" Expecting ID=0x%08x, Chip is 0x%08x\n", (OCTEON_MODEL & 0xffffff), (unsigned int)chip_id);
if ((OCTEON_MODEL & 0xffffff) > chip_id)
printf("Refusing to run on older revision than program was compiled for.\n");
exit(-1);
}
else
{
printf("\n###################################################\n");
printf("WARNING: Software configured for older revision than running on.\n"
" Compiled for ID=0x%08x, Chip is 0x%08x\n", (OCTEON_MODEL & 0xffffff), (unsigned int)chip_id);
printf("###################################################\n\n");
return(1);
}
}
#endif
cvmx_warn_if(CVMX_ENABLE_PARAMETER_CHECKING, "Parameter checks are enabled. Expect some performance loss due to the extra checking\n");
cvmx_warn_if(CVMX_ENABLE_CSR_ADDRESS_CHECKING, "CSR address checks are enabled. Expect some performance loss due to the extra checking\n");
cvmx_warn_if(CVMX_ENABLE_POW_CHECKS, "POW state checks are enabled. Expect some performance loss due to the extra checking\n");
/* Core-14449 errata check. Generate a warning message if application
compiled for OcteonPlus/Octeon models are run on Octeon II Pass1 chip */
{
uint32_t insn;
asm volatile (
".set push\n" \
".set noreorder\n" \
"pref_errata:\tpref 0,0($zero)\n" \
"lw %0, pref_errata\n" \
".set pop" : "=r" (insn) : : "memory");
if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X) && ((insn >> 16) & 0x1f) != 28)
{
printf("\n###################################################\n");
printf("WARNING: Application not compiled for cn63xx pass1.x chips, use of\n"
" certain prefetch operations can cause dcache corruption.\n");
printf("###################################################\n\n");
return -1;
}
else if (!OCTEON_IS_MODEL(OCTEON_CN63XX) && ((insn >> 16) & 0x1f) == 28)
{
printf("\n###################################################\n");
printf("WARNING: Software configured with -mfix-cn63xxp1 (Core-14449 errata), expect some performance loss.\n");
printf("###################################################\n\n");
}
}
return(0);
}
#endif
/**
* Given the chip processor ID from COP0, this function returns a
* string representing the chip model number. The string is of the
* form CNXXXXpX.X-FREQ-SUFFIX.
* - XXXX = The chip model number
* - X.X = Chip pass number
* - FREQ = Current frequency in Mhz
* - SUFFIX = NSP, EXP, SCP, SSP, or CP
*
* @param chip_id Chip ID
*
* @return Model string
*/
const char *octeon_model_get_string(uint32_t chip_id)
{
static char buffer[32];
return octeon_model_get_string_buffer(chip_id,buffer);
}
/* Version of octeon_model_get_string() that takes buffer as argument, as
** running early in u-boot static/global variables don't work when running from
** flash
*/
const char *octeon_model_get_string_buffer(uint32_t chip_id, char * buffer)
{
const char * family;
const char * core_model;
char pass[4];
int clock_mhz;
const char * suffix;
cvmx_l2d_fus3_t fus3;
int num_cores;
cvmx_mio_fus_dat2_t fus_dat2;
cvmx_mio_fus_dat3_t fus_dat3;
char fuse_model[10];
uint32_t fuse_data = 0;
if (!OCTEON_IS_MODEL(OCTEON_CN6XXX))
fus3.u64 = cvmx_read_csr(CVMX_L2D_FUS3);
fus_dat2.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT2);
fus_dat3.u64 = cvmx_read_csr(CVMX_MIO_FUS_DAT3);
num_cores = cvmx_pop(cvmx_read_csr(CVMX_CIU_FUSE));
/* Make sure the non existant devices look disabled */
switch ((chip_id >> 8) & 0xff)
{
case 6: /* CN50XX */
case 2: /* CN30XX */
fus_dat3.s.nodfa_dte = 1;
fus_dat3.s.nozip = 1;
break;
case 4: /* CN57XX or CN56XX */
fus_dat3.s.nodfa_dte = 1;
break;
default:
break;
}
/* Make a guess at the suffix */
/* NSP = everything */
/* EXP = No crypto */
/* SCP = No DFA, No zip */
/* CP = No DFA, No crypto, No zip */
if (fus_dat3.s.nodfa_dte)
{
if (fus_dat2.s.nocrypto)
suffix = "CP";
else
suffix = "SCP";
}
else if (fus_dat2.s.nocrypto)
suffix = "EXP";
else
suffix = "NSP";
/* Assume pass number is encoded using <5:3><2:0>. Exceptions will be
fixed later */
sprintf(pass, "%d.%d", (int)((chip_id>>3)&7)+1, (int)chip_id&7);
/* Use the number of cores to determine the last 2 digits of the model
number. There are some exceptions that are fixed later */
switch (num_cores)
{
case 16: core_model = "60"; break;
case 15: core_model = "58"; break;
case 14: core_model = "55"; break;
case 13: core_model = "52"; break;
case 12: core_model = "50"; break;
case 11: core_model = "48"; break;
case 10: core_model = "45"; break;
case 9: core_model = "42"; break;
case 8: core_model = "40"; break;
case 7: core_model = "38"; break;
case 6: core_model = "34"; break;
case 5: core_model = "32"; break;
case 4: core_model = "30"; break;
case 3: core_model = "25"; break;
case 2: core_model = "20"; break;
case 1: core_model = "10"; break;
default: core_model = "XX"; break;
}
/* Now figure out the family, the first two digits */
switch ((chip_id >> 8) & 0xff)
{
case 0: /* CN38XX, CN37XX or CN36XX */
if (fus3.cn38xx.crip_512k)
{
/* For some unknown reason, the 16 core one is called 37 instead of 36 */
if (num_cores >= 16)
family = "37";
else
family = "36";
}
else
family = "38";
/* This series of chips didn't follow the standard pass numbering */
switch (chip_id & 0xf)
{
case 0: strcpy(pass, "1.X"); break;
case 1: strcpy(pass, "2.X"); break;
case 3: strcpy(pass, "3.X"); break;
default:strcpy(pass, "X.X"); break;
}
break;
case 1: /* CN31XX or CN3020 */
if ((chip_id & 0x10) || fus3.cn31xx.crip_128k)
family = "30";
else
family = "31";
/* This series of chips didn't follow the standard pass numbering */
switch (chip_id & 0xf)
{
case 0: strcpy(pass, "1.0"); break;
case 2: strcpy(pass, "1.1"); break;
default:strcpy(pass, "X.X"); break;
}
break;
case 2: /* CN3010 or CN3005 */
family = "30";
/* A chip with half cache is an 05 */
if (fus3.cn30xx.crip_64k)
core_model = "05";
/* This series of chips didn't follow the standard pass numbering */
switch (chip_id & 0xf)
{
case 0: strcpy(pass, "1.0"); break;
case 2: strcpy(pass, "1.1"); break;
default:strcpy(pass, "X.X"); break;
}
break;
case 3: /* CN58XX */
family = "58";
/* Special case. 4 core, no crypto */
if ((num_cores == 4) && fus_dat2.cn38xx.nocrypto)
core_model = "29";
/* Pass 1 uses different encodings for pass numbers */
if ((chip_id & 0xFF)< 0x8)
{
switch (chip_id & 0x3)
{
case 0: strcpy(pass, "1.0"); break;
case 1: strcpy(pass, "1.1"); break;
case 3: strcpy(pass, "1.2"); break;
default:strcpy(pass, "1.X"); break;
}
}
break;
case 4: /* CN57XX, CN56XX, CN55XX, CN54XX */
if (fus_dat2.cn56xx.raid_en)
{
if (fus3.cn56xx.crip_1024k)
family = "55";
else
family = "57";
if (fus_dat2.cn56xx.nocrypto)
suffix = "SP";
else
suffix = "SSP";
}
else
{
if (fus_dat2.cn56xx.nocrypto)
suffix = "CP";
else
{
suffix = "NSP";
if (fus_dat3.s.nozip)
suffix = "SCP";
}
if (fus3.cn56xx.crip_1024k)
family = "54";
else
family = "56";
}
break;
case 6: /* CN50XX */
family = "50";
break;
case 7: /* CN52XX */
if (fus3.cn52xx.crip_256k)
family = "51";
else
family = "52";
break;
case 0x90: /* CN63XX */
family = "63";
if (num_cores == 6)
core_model = "35";
if (fus_dat2.cn63xx.nocrypto)
suffix = "CP";
else if (fus_dat2.cn63xx.dorm_crypto)
suffix = "DAP";
else
suffix = "AAP";
break;
default:
family = "XX";
core_model = "XX";
strcpy(pass, "X.X");
suffix = "XXX";
break;
}
clock_mhz = cvmx_clock_get_rate(CVMX_CLOCK_RCLK) / 1000000;
if (family[0] != '3')
{
/* Check for model in fuses, overrides normal decode */
/* This is _not_ valid for Octeon CN3XXX models */
fuse_data |= cvmx_fuse_read_byte(51);
fuse_data = fuse_data << 8;
fuse_data |= cvmx_fuse_read_byte(50);
fuse_data = fuse_data << 8;
fuse_data |= cvmx_fuse_read_byte(49);
fuse_data = fuse_data << 8;
fuse_data |= cvmx_fuse_read_byte(48);
if (fuse_data & 0x7ffff)
{
int model = fuse_data & 0x3fff;
int suffix = (fuse_data >> 14) & 0x1f;
if (suffix && model) /* Have both number and suffix in fuses, so both */
{
sprintf(fuse_model, "%d%c",model, 'A' + suffix - 1);
core_model = "";
family = fuse_model;
}
else if (suffix && !model) /* Only have suffix, so add suffix to 'normal' model number */
{
sprintf(fuse_model, "%s%c", core_model, 'A' + suffix - 1);
core_model = fuse_model;
}
else /* Don't have suffix, so just use model from fuses */
{
sprintf(fuse_model, "%d",model);
core_model = "";
family = fuse_model;
}
}
}
#ifdef CVMX_BUILD_FOR_UBOOT
sprintf(buffer, "CN%s%s-%s pass %s", family, core_model, suffix, pass);
#else
sprintf(buffer, "CN%s%sp%s-%d-%s", family, core_model, pass, clock_mhz, suffix);
#endif
return buffer;
}