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freebsd/sys/contrib/octeon-sdk/cvmx-tra.c
Juli Mallett 04b6fa8330 Merge Cavium Octeon SDK 2.0 Simple Executive; this brings some fixes and new 
facilities as well as support for the Octeon 2 family of SoCs.

XXX Note that with our antediluvian assembler, we can't support some Octeon 2
    instructions and fall back to using the old ones instead.
2010-11-28 08:18:16 +00:00

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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 the Trace buffer hardware.
*
* <hr>$Revision: 30644 $<hr>
*/
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
#include <linux/module.h>
#include <asm/octeon/cvmx.h>
#include <asm/octeon/cvmx-tra.h>
#else
#include "cvmx.h"
#include "cvmx-tra.h"
#endif
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 *TYPE_ARRAY2[] = {
"NOP - None",
"LDT - Icache/IO fill, skip L2",
"LDI - Icache/IO fill",
"PL2 - Prefetch into L2",
"RPL2 - Mark for replacement in L2",
"DWB - Don't write back",
"RSVD6",
"RSVD7",
"LDD - Dcache fill",
"PSL1 - Prefetch L1, skip L2",
"RSVD10",
"RSVD11",
"RSVD12",
"RSVD13",
"RSVD14",
"IOBDMA - Async IOB",
"STF - Store full",
"STT - Store full, skip L2",
"STP - Store partial",
"STC - Store conditional",
"STFIL1 - Store full, invalidate L1",
"STTIL1 - Store full, skip L2, invalidate L1",
"FAS32 - Atomic 32bit swap",
"FAS64 - Atomic 64bit swap",
"WBIL2i - Writeback, invalidate, by index/way",
"LTGL2i - Read tag@index/way",
"STGL2i - Write tag@index/way",
"RSVD27",
"INVL2 - Invalidate, by address",
"WBIL2 - Writeback, invalidate, by address",
"WBL2 - Writeback, by address",
"LCKL2 - Allocate, lock, by address",
"IOBLD8 - IOB 8bit load",
"IOBLD16 - IOB 16bit load",
"IOBLD32 - IOB 32bit load",
"IOBLD64 - IOB 64bit load",
"IOBST8 - IOB 8bit store",
"IOBST16 - IOB 16bit store",
"IOBST32 - IOB 32bit store",
"IOBST64 - IOB 64bit store",
"SET8 - 8bit Atomic swap with 1's",
"SET16 - 16bit Atomic swap with 1's",
"SET32 - 32bit Atomic swap with 1's",
"SET64 - 64bit Atomic swap with 1's",
"CLR8 - 8bit Atomic swap with 0's",
"CLR16 - 16bit Atomic swap with 0's",
"CLR32 - 32bit Atomic swap with 0's",
"CLR64 - 64bit Atomic swap with 0's",
"INCR8 - 8bit Atomic fetch & add by 1",
"INCR16 - 16bit Atomic fetch & add by 1",
"INCR32 - 32bit Atomic fetch & add by 1",
"INCR64 - 64bit Atomic fetch & add by 1",
"DECR8 - 8bit Atomic fetch & add by -1",
"DECR16 - 16bit Atomic fetch & add by -1",
"DECR32 - 32bit Atomic fetch & add by -1",
"DECR64 - 64bit Atomic fetch & add by -1",
"RSVD56",
"RSVD57",
"FAA32 - 32bit Atomic fetch and add",
"FAA64 - 64bit Atomic fetch and add",
"RSVD60",
"RSVD61",
"SAA32 - 32bit Atomic add",
"SAA64 - 64bit Atomic add"
};
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/SLI",
"KEY",
"FPA",
"DFA",
"ZIP",
"RNG",
"IPD",
"PKO",
"RSVD11",
"POW",
"USB0",
"RAD",
"RSVD15",
"RSVD16",
"RSVD17",
"RSVD18",
"RSVD19",
"RSVD20",
"RSVD21",
"RSVD22",
"RSVD23",
"RSVD24",
"RSVD25",
"RSVD26",
"DPI",
"RSVD28",
"RSVD29",
"FAU",
"RSVD31"
};
#define CVMX_TRA_SOURCE_MASK (OCTEON_IS_MODEL(OCTEON_CN63XX) ? 0xf00ff : 0xfffff)
#define CVMX_TRA_DESTINATION_MASK 0xfffffffful
/**
* @INTERNAL
* Setup the trace buffer filter command mask. The bit position of filter commands
* are different for each Octeon model.
*
* @param filter Which event to log
* @return Bitmask of filter command based on the event.
*/
static uint64_t __cvmx_tra_set_filter_cmd_mask(cvmx_tra_filt_t filter)
{
cvmx_tra_filt_cmd_t filter_command;
if (OCTEON_IS_MODEL(OCTEON_CN3XXX) || OCTEON_IS_MODEL(OCTEON_CN5XXX))
{
/* Bit positions of filter commands are different, map it accordingly */
uint64_t cmd = 0;
if ((filter & CVMX_TRA_FILT_ALL) == -1ull)
{
if (OCTEON_IS_MODEL(OCTEON_CN5XXX))
cmd = 0x1ffff;
else
cmd = 0xffff;
}
if (filter & CVMX_TRA_FILT_DWB)
cmd |= 1ull<<0;
if (filter & CVMX_TRA_FILT_PL2)
cmd |= 1ull<<1;
if (filter & CVMX_TRA_FILT_PSL1)
cmd |= 1ull<<2;
if (filter & CVMX_TRA_FILT_LDD)
cmd |= 1ull<<3;
if (filter & CVMX_TRA_FILT_LDI)
cmd |= 1ull<<4;
if (filter & CVMX_TRA_FILT_LDT)
cmd |= 1ull<<5;
if (filter & CVMX_TRA_FILT_STF)
cmd |= 1ull<<6;
if (filter & CVMX_TRA_FILT_STC)
cmd |= 1ull<<7;
if (filter & CVMX_TRA_FILT_STP)
cmd |= 1ull<<8;
if (filter & CVMX_TRA_FILT_STT)
cmd |= 1ull<<9;
if (filter & CVMX_TRA_FILT_IOBLD8)
cmd |= 1ull<<10;
if (filter & CVMX_TRA_FILT_IOBLD16)
cmd |= 1ull<<11;
if (filter & CVMX_TRA_FILT_IOBLD32)
cmd |= 1ull<<12;
if (filter & CVMX_TRA_FILT_IOBLD64)
cmd |= 1ull<<13;
if (filter & CVMX_TRA_FILT_IOBST)
cmd |= 1ull<<14;
if (filter & CVMX_TRA_FILT_IOBDMA)
cmd |= 1ull<<15;
if (OCTEON_IS_MODEL(OCTEON_CN5XXX) && (filter & CVMX_TRA_FILT_SAA))
cmd |= 1ull<<16;
filter_command.u64 = cmd;
}
else
{
if ((filter & CVMX_TRA_FILT_ALL) == -1ull)
filter_command.u64 = CVMX_TRA_FILT_ALL;
else
filter_command.u64 = filter;
filter_command.cn63xx.reserved_60_61 = 0;
filter_command.cn63xx.reserved_56_57 = 0;
filter_command.cn63xx.reserved_10_14 = 0;
filter_command.cn63xx.reserved_6_7 = 0;
}
return filter_command.u64;
}
/**
* 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_t filter,
cvmx_tra_sid_t source_filter, cvmx_tra_did_t dest_filter,
uint64_t address, uint64_t address_mask)
{
cvmx_tra_filt_cmd_t filt_cmd;
cvmx_tra_filt_sid_t filt_sid;
cvmx_tra_filt_did_t filt_did;
filt_cmd.u64 = __cvmx_tra_set_filter_cmd_mask(filter);
filt_sid.u64 = source_filter & CVMX_TRA_SOURCE_MASK;
filt_did.u64 = dest_filter & CVMX_TRA_DESTINATION_MASK;
cvmx_write_csr(CVMX_TRA_CTL, control.u64);
cvmx_write_csr(CVMX_TRA_FILT_CMD, filt_cmd.u64);
cvmx_write_csr(CVMX_TRA_FILT_SID, filt_sid.u64);
cvmx_write_csr(CVMX_TRA_FILT_DID, filt_did.u64);
cvmx_write_csr(CVMX_TRA_FILT_ADR_ADR, address);
cvmx_write_csr(CVMX_TRA_FILT_ADR_MSK, address_mask);
}
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
EXPORT_SYMBOL(cvmx_tra_setup);
#endif
/**
* 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_t filter,
cvmx_tra_sid_t source_filter, cvmx_tra_did_t dest_filter,
uint64_t address, uint64_t address_mask)
{
cvmx_tra_filt_cmd_t tra_filt_cmd;
cvmx_tra_filt_sid_t tra_filt_sid;
cvmx_tra_filt_did_t tra_filt_did;
tra_filt_cmd.u64 = __cvmx_tra_set_filter_cmd_mask(filter);
tra_filt_sid.u64 = source_filter & CVMX_TRA_SOURCE_MASK;
tra_filt_did.u64 = dest_filter & CVMX_TRA_DESTINATION_MASK;
cvmx_write_csr(CVMX_TRA_TRIG0_CMD + trigger * 64, tra_filt_cmd.u64);
cvmx_write_csr(CVMX_TRA_TRIG0_SID + trigger * 64, tra_filt_sid.u64);
cvmx_write_csr(CVMX_TRA_TRIG0_DID + trigger * 64, tra_filt_did.u64);
cvmx_write_csr(CVMX_TRA_TRIG0_ADR_ADR + trigger * 64, address);
cvmx_write_csr(CVMX_TRA_TRIG0_ADR_MSK + trigger * 64, address_mask);
}
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
EXPORT_SYMBOL(cvmx_tra_trig_setup);
#endif
/**
* 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)
{
uint64_t address = CVMX_TRA_READ_DAT;
cvmx_tra_data_t result;
/* The trace buffer format is wider than 64-bits in Octeon2 model,
read the register again to get the second part of the data. */
if (!OCTEON_IS_MODEL(OCTEON_CN3XXX) && !OCTEON_IS_MODEL(OCTEON_CN5XXX))
{
/* These reads need to be as close as possible to each other */
result.u128.data = cvmx_read_csr(address);
result.u128.datahi = cvmx_read_csr(address);
}
else
{
result.u128.data = cvmx_read_csr(address);
result.u128.datahi = 0;
}
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)
{
if (OCTEON_IS_MODEL(OCTEON_CN3XXX) || OCTEON_IS_MODEL(OCTEON_CN5XXX))
{
/* 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 0: /* DWB */
case 1: /* PL2 */
case 2: /* PSL1 */
case 3: /* LDD */
case 4: /* LDI */
case 5: /* LDT */
cvmx_dprintf("0x%016llx %c%+10d %s %s 0x%016llx\n",
(unsigned long long)data.u128.data,
(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 6: /* STF */
case 7: /* STC */
case 8: /* STP */
case 9: /* STT */
case 16: /* SAA */
cvmx_dprintf("0x%016llx %c%+10d %s %s mask=0x%02x 0x%016llx\n",
(unsigned long long)data.u128.data,
(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 10: /* IOBLD8 */
case 11: /* IOBLD16 */
case 12: /* IOBLD32 */
case 13: /* IOBLD64 */
case 14: /* IOBST */
cvmx_dprintf("0x%016llx %c%+10d %s %s->%s subdid=0x%x 0x%016llx\n",
(unsigned long long)data.u128.data,
(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 15: /* IOBDMA */
cvmx_dprintf("0x%016llx %c%+10d %s %s->%s len=0x%x 0x%016llx\n",
(unsigned long long)data.u128.data,
(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.u128.data,
(data.cmn.discontinuity) ? 'D' : ' ',
data.cmn.timestamp << (tra_ctl.s.time_grn*3));
break;
}
}
else
{
int type;
type = data.cmn2.type;
switch (1ull<<type)
{
case CVMX_TRA_FILT_DECR64:
case CVMX_TRA_FILT_DECR32:
case CVMX_TRA_FILT_DECR16:
case CVMX_TRA_FILT_DECR8:
case CVMX_TRA_FILT_INCR64:
case CVMX_TRA_FILT_INCR32:
case CVMX_TRA_FILT_INCR16:
case CVMX_TRA_FILT_INCR8:
case CVMX_TRA_FILT_CLR64:
case CVMX_TRA_FILT_CLR32:
case CVMX_TRA_FILT_CLR16:
case CVMX_TRA_FILT_CLR8:
case CVMX_TRA_FILT_SET64:
case CVMX_TRA_FILT_SET32:
case CVMX_TRA_FILT_SET16:
case CVMX_TRA_FILT_SET8:
case CVMX_TRA_FILT_WBL2:
case CVMX_TRA_FILT_DWB:
case CVMX_TRA_FILT_RPL2:
case CVMX_TRA_FILT_PL2:
case CVMX_TRA_FILT_LDI:
case CVMX_TRA_FILT_LDT:
cvmx_dprintf("0x%016llx%016llx %c%+10d %s %s 0x%016llx%llx\n",
(unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
(data.cmn2.discontinuity) ? 'D' : ' ',
data.cmn2.timestamp << (tra_ctl.s.time_grn*3),
TYPE_ARRAY2[type],
SOURCE_ARRAY[data.cmn2.source],
(unsigned long long)data.cmn2.addresshi,
(unsigned long long)data.cmn2.addresslo);
break;
case CVMX_TRA_FILT_PSL1:
case CVMX_TRA_FILT_LDD:
case CVMX_TRA_FILT_FAS64:
case CVMX_TRA_FILT_FAS32:
case CVMX_TRA_FILT_FAA64:
case CVMX_TRA_FILT_FAA32:
case CVMX_TRA_FILT_SAA64:
case CVMX_TRA_FILT_SAA32:
case CVMX_TRA_FILT_STC:
case CVMX_TRA_FILT_STF:
case CVMX_TRA_FILT_STP:
case CVMX_TRA_FILT_STT:
cvmx_dprintf("0x%016llx%016llx %c%+10d %s %s mask=0x%02x 0x%016llx%llx\n",
(unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
(data.cmn2.discontinuity) ? 'D' : ' ',
data.cmn2.timestamp << (tra_ctl.s.time_grn*3),
TYPE_ARRAY2[type],
SOURCE_ARRAY[data.store2.source],
(unsigned int)data.store2.mask,
(unsigned long long)data.store2.addresshi,
(unsigned long long)data.store2.addresslo);
break;
case CVMX_TRA_FILT_IOBST64:
case CVMX_TRA_FILT_IOBST32:
case CVMX_TRA_FILT_IOBST16:
case CVMX_TRA_FILT_IOBST8:
case CVMX_TRA_FILT_IOBLD64:
case CVMX_TRA_FILT_IOBLD32:
case CVMX_TRA_FILT_IOBLD16:
case CVMX_TRA_FILT_IOBLD8:
cvmx_dprintf("0x%016llx%016llx %c%+10d %s %s->%s subdid=0x%x 0x%016llx%llx\n",
(unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
(data.cmn2.discontinuity) ? 'D' : ' ',
data.cmn2.timestamp << (tra_ctl.s.time_grn*3),
TYPE_ARRAY2[type],
SOURCE_ARRAY[data.iobld2.source],
DEST_ARRAY[data.iobld2.dest],
(unsigned int)data.iobld2.subid,
(unsigned long long)data.iobld2.addresshi,
(unsigned long long)data.iobld2.addresslo);
break;
case CVMX_TRA_FILT_IOBDMA:
cvmx_dprintf("0x%016llx%016llx %c%+10d %s %s->%s len=0x%x 0x%016llx%llx\n",
(unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
(data.iob2.discontinuity) ? 'D' : ' ',
data.iob2.timestamp << (tra_ctl.s.time_grn*3),
TYPE_ARRAY2[type],
SOURCE_ARRAY[data.iob2.source],
DEST_ARRAY[data.iob2.dest],
(unsigned int)data.iob2.mask,
(unsigned long long)data.iob2.addresshi << 3,
(unsigned long long)data.iob2.addresslo << 3);
break;
default:
cvmx_dprintf("0x%016llx%016llx %c%+10d Unknown format\n",
(unsigned long long)data.u128.datahi, (unsigned long long)data.u128.data,
(data.cmn2.discontinuity) ? 'D' : ' ',
data.cmn2.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;
int valid = 0;
tra_ctl.u64 = cvmx_read_csr(CVMX_TRA_CTL);
do
{
data = cvmx_tra_read();
if ((OCTEON_IS_MODEL(OCTEON_CN3XXX) || OCTEON_IS_MODEL(OCTEON_CN5XXX)) && data.cmn.valid)
valid = 1;
else if (data.cmn2.valid)
valid = 1;
else
valid = 0;
if (valid)
cvmx_tra_decode_text(tra_ctl, data);
} while (valid);
}
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
EXPORT_SYMBOL(cvmx_tra_display);
#endif
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