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freebsd-skq/cvmx-tra.c

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/***********************license start***************
* Copyright (c) 2003-2008 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.
*
* 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.
*
*
* For any questions regarding licensing please contact marketing@caviumnetworks.com
*
***********************license end**************************************/
/**
* @file
*
* Interface to the Trace buffer hardware.
*
* <hr>$Revision: 30644 $<hr>
*/
#include "cvmx.h"
#include "cvmx-tra.h"
static const char *TYPE_ARRAY[] = {
"DWB - Don't write back",
"PL2 - Prefetch into L2",
"PSL1 - Dcache fill, skip L2",
"LDD - Dcache fill",
"LDI - Icache/IO fill",
"LDT - Icache/IO fill, skip L2",
"STF - Store full",
"STC - Store conditional",
"STP - Store partial",
"STT - Store full, skip L2",
"IOBLD8 - IOB 8bit load",
"IOBLD16 - IOB 16bit load",
"IOBLD32 - IOB 32bit load",
"IOBLD64 - IOB 64bit load",
"IOBST - IOB store",
"IOBDMA - Async IOB",
"SAA - Store atomic add",
"RSVD17",
"RSVD18",
"RSVD19",
"RSVD20",
"RSVD21",
"RSVD22",
"RSVD23",
"RSVD24",
"RSVD25",
"RSVD26",
"RSVD27",
"RSVD28",
"RSVD29",
"RSVD30",
"RSVD31"
};
static const char *SOURCE_ARRAY[] = {
"PP0",
"PP1",
"PP2",
"PP3",
"PP4",
"PP5",
"PP6",
"PP7",
"PP8",
"PP9",
"PP10",
"PP11",
"PP12",
"PP13",
"PP14",
"PP15",
"PIP/IPD",
"PKO-R",
"FPA/TIM/DFA/PCI/ZIP/POW/PKO-W",
"DWB",
"RSVD20",
"RSVD21",
"RSVD22",
"RSVD23",
"RSVD24",
"RSVD25",
"RSVD26",
"RSVD27",
"RSVD28",
"RSVD29",
"RSVD30",
"RSVD31"
};
static const char *DEST_ARRAY[] = {
"CIU/GPIO",
"RSVD1",
"RSVD2",
"PCI/PCIe",
"KEY",
"FPA",
"DFA",
"ZIP",
"RNG",
"IPD",
"PKO",
"RSVD11",
"POW",
"RSVD13",
"RSVD14",
"RSVD15",
"RSVD16",
"RSVD17",
"RSVD18",
"RSVD19",
"RSVD20",
"RSVD21",
"RSVD22",
"RSVD23",
"RSVD24",
"RSVD25",
"RSVD26",
"RSVD27",
"RSVD28",
"RSVD29",
"RSVD30",
"RSVD31"
};
/**
* Setup the TRA buffer for use
*
* @param control TRA control setup
* @param filter Which events to log
* @param source_filter
* Source match
* @param dest_filter
* Destination match
* @param address Address compare
* @param address_mask
* Address mask
*/
void cvmx_tra_setup(cvmx_tra_ctl_t control, cvmx_tra_filt_cmd_t filter,
cvmx_tra_filt_sid_t source_filter, cvmx_tra_filt_did_t dest_filter,
uint64_t address, uint64_t address_mask)
{
cvmx_write_csr(CVMX_TRA_CTL, control.u64);
cvmx_write_csr(CVMX_TRA_FILT_CMD, filter.u64);
cvmx_write_csr(CVMX_TRA_FILT_SID, source_filter.u64);
cvmx_write_csr(CVMX_TRA_FILT_DID, dest_filter.u64);
cvmx_write_csr(CVMX_TRA_FILT_ADR_ADR, address);
cvmx_write_csr(CVMX_TRA_FILT_ADR_MSK, address_mask);
}
/**
* Setup a TRA trigger. How the triggers are used should be
* setup using cvmx_tra_setup.
*
* @param trigger Trigger to setup (0 or 1)
* @param filter Which types of events to trigger on
* @param source_filter
* Source trigger match
* @param dest_filter
* Destination trigger match
* @param address Trigger address compare
* @param address_mask
* Trigger address mask
*/
void cvmx_tra_trig_setup(uint64_t trigger, cvmx_tra_filt_cmd_t filter,
cvmx_tra_filt_sid_t source_filter, cvmx_tra_trig0_did_t dest_filter,
uint64_t address, uint64_t address_mask)
{
cvmx_write_csr(CVMX_TRA_TRIG0_CMD + trigger * 64, filter.u64);
cvmx_write_csr(CVMX_TRA_TRIG0_SID + trigger * 64, source_filter.u64);
cvmx_write_csr(CVMX_TRA_TRIG0_DID + trigger * 64, dest_filter.u64);
cvmx_write_csr(CVMX_TRA_TRIG0_ADR_ADR + trigger * 64, address);
cvmx_write_csr(CVMX_TRA_TRIG0_ADR_MSK + trigger * 64, address_mask);
}
/**
* Read an entry from the TRA buffer
*
* @return Value return. High bit will be zero if there wasn't any data
*/
cvmx_tra_data_t cvmx_tra_read(void)
{
cvmx_tra_data_t result;
result.u64 = cvmx_read_csr(CVMX_TRA_READ_DAT);
return result;
}
/**
* Decode a TRA entry into human readable output
*
* @param tra_ctl Trace control setup
* @param data Data to decode
*/
void cvmx_tra_decode_text(cvmx_tra_ctl_t tra_ctl, cvmx_tra_data_t data)
{
/* The type is a five bit field for some entries and 4 for other. The four
bit entries can be mis-typed if the top is set */
int type = data.cmn.type;
if (type >= 0x1a)
type &= 0xf;
switch (type)
{
case CVMX_TRA_DATA_DWB:
case CVMX_TRA_DATA_PL2:
case CVMX_TRA_DATA_PSL1:
case CVMX_TRA_DATA_LDD:
case CVMX_TRA_DATA_LDI:
case CVMX_TRA_DATA_LDT:
cvmx_dprintf("0x%016llx %c%+10d %s %s 0x%016llx\n",
(unsigned long long)data.u64,
(data.cmn.discontinuity) ? 'D' : ' ',
data.cmn.timestamp << (tra_ctl.s.time_grn*3),
TYPE_ARRAY[type],
SOURCE_ARRAY[data.cmn.source],
(unsigned long long)data.cmn.address);
break;
case CVMX_TRA_DATA_STC:
case CVMX_TRA_DATA_STF:
case CVMX_TRA_DATA_STP:
case CVMX_TRA_DATA_STT:
case CVMX_TRA_DATA_SAA:
cvmx_dprintf("0x%016llx %c%+10d %s %s mask=0x%02x 0x%016llx\n",
(unsigned long long)data.u64,
(data.cmn.discontinuity) ? 'D' : ' ',
data.cmn.timestamp << (tra_ctl.s.time_grn*3),
TYPE_ARRAY[type],
SOURCE_ARRAY[data.store.source],
(unsigned int)data.store.mask,
(unsigned long long)data.store.address << 3);
break;
case CVMX_TRA_DATA_IOBLD8:
case CVMX_TRA_DATA_IOBLD16:
case CVMX_TRA_DATA_IOBLD32:
case CVMX_TRA_DATA_IOBLD64:
case CVMX_TRA_DATA_IOBST:
cvmx_dprintf("0x%016llx %c%+10d %s %s->%s subdid=0x%x 0x%016llx\n",
(unsigned long long)data.u64,
(data.cmn.discontinuity) ? 'D' : ' ',
data.cmn.timestamp << (tra_ctl.s.time_grn*3),
TYPE_ARRAY[type],
SOURCE_ARRAY[data.iobld.source],
DEST_ARRAY[data.iobld.dest],
(unsigned int)data.iobld.subid,
(unsigned long long)data.iobld.address);
break;
case CVMX_TRA_DATA_IOBDMA:
cvmx_dprintf("0x%016llx %c%+10d %s %s->%s len=0x%x 0x%016llx\n",
(unsigned long long)data.u64,
(data.cmn.discontinuity) ? 'D' : ' ',
data.cmn.timestamp << (tra_ctl.s.time_grn*3),
TYPE_ARRAY[type],
SOURCE_ARRAY[data.iob.source],
DEST_ARRAY[data.iob.dest],
(unsigned int)data.iob.mask,
(unsigned long long)data.iob.address << 3);
break;
default:
cvmx_dprintf("0x%016llx %c%+10d Unknown format\n",
(unsigned long long)data.u64,
(data.cmn.discontinuity) ? 'D' : ' ',
data.cmn.timestamp << (tra_ctl.s.time_grn*3));
break;
}
}
/**
* Display the entire trace buffer. It is advised that you
* disable the trace buffer before calling this routine
* otherwise it could infinitely loop displaying trace data
* that it created.
*/
void cvmx_tra_display(void)
{
cvmx_tra_ctl_t tra_ctl;
cvmx_tra_data_t data;
tra_ctl.u64 = cvmx_read_csr(CVMX_TRA_CTL);
do
{
data = cvmx_tra_read();
if (data.cmn.valid)
cvmx_tra_decode_text(tra_ctl, data);
} while (data.cmn.valid);
}
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