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📁 ..
📄 cvmip.h(5.88 KB)
📄 cvmx-abi.h(3.67 KB)
📄 cvmx-access-native.h(26.79 KB)
📄 cvmx-access.h(7.82 KB)
📄 cvmx-address.h(10.26 KB)
📄 cvmx-agl-defs.h(213.66 KB)
📄 cvmx-app-hotplug.c(27.64 KB)
📄 cvmx-app-hotplug.h(5.77 KB)
📄 cvmx-app-init-linux.c(14.29 KB)
📄 cvmx-app-init.c(22.54 KB)
📄 cvmx-app-init.h(19.32 KB)
📄 cvmx-asm.h(39.3 KB)
📄 cvmx-asx0-defs.h(5.19 KB)
📄 cvmx-asxx-defs.h(50.57 KB)
📄 cvmx-atomic.h(21.71 KB)
📄 cvmx-bootloader.h(5.64 KB)
📄 cvmx-bootmem.c(40.91 KB)
📄 cvmx-bootmem.h(18.88 KB)
📄 cvmx-ciu-defs.h(702.5 KB)
📄 cvmx-ciu2-defs.h(487.31 KB)
📄 cvmx-clock.c(4.48 KB)
📄 cvmx-clock.h(4.43 KB)
📄 cvmx-cmd-queue.c(11.84 KB)
📄 cvmx-cmd-queue.h(22 KB)
📄 cvmx-cn3010-evb-hs5.c(6.05 KB)
📄 cvmx-cn3010-evb-hs5.h(2.3 KB)
📄 cvmx-compactflash.c(12.8 KB)
📄 cvmx-compactflash.h(3.05 KB)
📄 cvmx-core.c(5.3 KB)
📄 cvmx-core.h(9.46 KB)
📄 cvmx-coremask.c(4.12 KB)
📄 cvmx-coremask.h(8.11 KB)
📄 cvmx-crypto.c(2.6 KB)
📄 cvmx-crypto.h(2.54 KB)
📄 cvmx-csr-enums.h(8.45 KB)
📄 cvmx-csr-typedefs.h(3.92 KB)
📄 cvmx-csr.h(11.46 KB)
📄 cvmx-dbg-defs.h(6.28 KB)
📄 cvmx-debug-handler.S(7.44 KB)
📄 cvmx-debug-remote.c(3.24 KB)
📄 cvmx-debug-uart.c(7.88 KB)
📄 cvmx-debug.c(55.98 KB)
📄 cvmx-debug.h(22.2 KB)
📄 cvmx-dfa-defs.h(383.08 KB)
📄 cvmx-dfa.c(3.7 KB)
📄 cvmx-dfa.h(34.87 KB)
📄 cvmx-dfm-defs.h(205.93 KB)
📄 cvmx-dma-engine.c(20.25 KB)
📄 cvmx-dma-engine.h(24.06 KB)
📄 cvmx-dpi-defs.h(107.61 KB)
📄 cvmx-ebt3000.c(3.82 KB)
📄 cvmx-ebt3000.h(2.25 KB)
📄 cvmx-endor-defs.h(311.42 KB)
📄 cvmx-eoi-defs.h(26.27 KB)
📄 cvmx-fau.h(20.31 KB)
📄 cvmx-flash.c(22.46 KB)
📄 cvmx-flash.h(3.8 KB)
📄 cvmx-fpa-defs.h(157.78 KB)
📄 cvmx-fpa.c(6.63 KB)
📄 cvmx-fpa.h(10.39 KB)
📄 cvmx-gmx.h(3.07 KB)
📄 cvmx-gmxx-defs.h(505.27 KB)
📄 cvmx-gpio-defs.h(36.89 KB)
📄 cvmx-gpio.h(5.48 KB)
📄 cvmx-helper-board.c(58 KB)
📄 cvmx-helper-board.h(7.82 KB)
📄 cvmx-helper-cfg.c(18.68 KB)
📄 cvmx-helper-cfg.h(8.1 KB)
📄 cvmx-helper-check-defines.h(4.1 KB)
📄 cvmx-helper-errata.c(11.91 KB)
📄 cvmx-helper-errata.h(3.24 KB)
📄 cvmx-helper-fpa.c(8.81 KB)
📄 cvmx-helper-fpa.h(3.21 KB)
📄 cvmx-helper-ilk.c(12.74 KB)
📄 cvmx-helper-ilk.h(3.58 KB)
📄 cvmx-helper-jtag.c(7.05 KB)
📄 cvmx-helper-jtag.h(3.91 KB)
📄 cvmx-helper-loop.c(4.35 KB)
📄 cvmx-helper-loop.h(2.78 KB)
📄 cvmx-helper-npi.c(5.72 KB)
📄 cvmx-helper-npi.h(2.82 KB)
📄 cvmx-helper-rgmii.c(19.12 KB)
📄 cvmx-helper-rgmii.h(4.5 KB)
📄 cvmx-helper-sgmii.c(27.09 KB)
📄 cvmx-helper-sgmii.h(4.3 KB)
📄 cvmx-helper-spi.c(8.4 KB)
📄 cvmx-helper-spi.h(3.68 KB)
📄 cvmx-helper-srio.c(11.58 KB)
📄 cvmx-helper-srio.h(3.6 KB)
📄 cvmx-helper-util.c(25.77 KB)
📄 cvmx-helper-util.h(9.88 KB)
📄 cvmx-helper-xaui.c(16.54 KB)
📄 cvmx-helper-xaui.h(4.29 KB)
📄 cvmx-helper.c(69.71 KB)
📄 cvmx-helper.h(12.7 KB)
📄 cvmx-hfa.c(5.04 KB)
📄 cvmx-hfa.h(10.3 KB)
📄 cvmx-higig.h(23.21 KB)
📄 cvmx-ilk-defs.h(170.31 KB)
📄 cvmx-ilk.c(45.16 KB)
📄 cvmx-ilk.h(5.89 KB)
📄 cvmx-interrupt-handler.S(5.87 KB)
📄 cvmx-interrupt.c(47.42 KB)
📄 cvmx-interrupt.h(8.07 KB)
📄 cvmx-iob-defs.h(89.11 KB)
📄 cvmx-iob1-defs.h(6.8 KB)
📄 cvmx-ipd-defs.h(186.51 KB)
📄 cvmx-ipd.c(12.88 KB)
📄 cvmx-ipd.h(6.3 KB)
📄 cvmx-ixf18201.c(12.8 KB)
📄 cvmx-ixf18201.h(3.54 KB)
📄 cvmx-key-defs.h(11 KB)
📄 cvmx-key.h(3.29 KB)
📄 cvmx-l2c-defs.h(353.27 KB)
📄 cvmx-l2c.c(52.95 KB)
📄 cvmx-l2c.h(19.72 KB)
📄 cvmx-l2d-defs.h(60.71 KB)
📄 cvmx-l2t-defs.h(50.68 KB)
📄 cvmx-led-defs.h(22.68 KB)
📄 cvmx-llm.c(36.51 KB)
📄 cvmx-llm.h(11.72 KB)
📄 cvmx-lmcx-defs.h(532.21 KB)
📄 cvmx-log-arc.S(5.67 KB)
📄 cvmx-log.c(18.26 KB)
📄 cvmx-log.h(4.95 KB)
📁 cvmx-malloc
📄 cvmx-malloc.h(7.2 KB)
📄 cvmx-mdio.h(15.99 KB)
📄 cvmx-mgmt-port.c(36.2 KB)
📄 cvmx-mgmt-port.h(7.23 KB)
📄 cvmx-mio-defs.h(454.14 KB)
📄 cvmx-mixx-defs.h(94.59 KB)
📄 cvmx-mpi-defs.h(33.42 KB)
📄 cvmx-nand.c(76.64 KB)
📄 cvmx-nand.h(26.85 KB)
📄 cvmx-ndf-defs.h(25.53 KB)
📄 cvmx-npei-defs.h(378.19 KB)
📄 cvmx-npi-defs.h(252.36 KB)
📄 cvmx-npi.h(4.69 KB)
📄 cvmx-packet.h(2.94 KB)
📄 cvmx-pci-defs.h(250.53 KB)
📄 cvmx-pci.h(2.37 KB)
📄 cvmx-pcie.c(63 KB)
📄 cvmx-pcie.h(10.08 KB)
📄 cvmx-pcieepx-defs.h(304.49 KB)
📄 cvmx-pciercx-defs.h(284.89 KB)
📄 cvmx-pcm-defs.h(12.34 KB)
📄 cvmx-pcmx-defs.h(46.12 KB)
📄 cvmx-pcsx-defs.h(71.23 KB)
📄 cvmx-pcsxx-defs.h(45.79 KB)
📄 cvmx-pemx-defs.h(68.97 KB)
📄 cvmx-pescx-defs.h(49.92 KB)
📄 cvmx-pexp-defs.h(97.89 KB)
📄 cvmx-pip-defs.h(315.91 KB)
📄 cvmx-pip.h(33.65 KB)
📄 cvmx-pko-defs.h(181.41 KB)
📄 cvmx-pko.c(32 KB)
📄 cvmx-pko.h(31.29 KB)
📄 cvmx-platform.h(7.45 KB)
📄 cvmx-pow-defs.h(93.02 KB)
📄 cvmx-pow.c(32.26 KB)
📄 cvmx-pow.h(100.93 KB)
📄 cvmx-power-throttle.c(7.25 KB)
📄 cvmx-power-throttle.h(3.85 KB)
📄 cvmx-profiler.c(7.81 KB)
📄 cvmx-profiler.h(3.15 KB)
📄 cvmx-qlm-tables.c(35.37 KB)
📄 cvmx-qlm.c(23.41 KB)
📄 cvmx-qlm.h(4.76 KB)
📄 cvmx-rad-defs.h(43.58 KB)
📄 cvmx-raid.c(4.71 KB)
📄 cvmx-raid.h(13.02 KB)
📄 cvmx-resources.config(7.66 KB)
📄 cvmx-rng.h(5.02 KB)
📄 cvmx-rnm-defs.h(13.03 KB)
📄 cvmx-rtc.h(4.21 KB)
📄 cvmx-rwlock.h(5.25 KB)
📄 cvmx-scratch.h(4.76 KB)
📄 cvmx-shared-linux-n32.ld(11.8 KB)
📄 cvmx-shared-linux-o32.ld(10.67 KB)
📄 cvmx-shared-linux.ld(11.77 KB)
📄 cvmx-shmem.c(18.89 KB)
📄 cvmx-shmem.h(4.11 KB)
📄 cvmx-sim-magic.h(5.59 KB)
📄 cvmx-sli-defs.h(312.94 KB)
📄 cvmx-smi-defs.h(4.09 KB)
📄 cvmx-smix-defs.h(21.71 KB)
📄 cvmx-spi.c(24.99 KB)
📄 cvmx-spi.h(10.22 KB)
📄 cvmx-spi4000.c(19.23 KB)
📄 cvmx-spinlock.h(11.73 KB)
📄 cvmx-spx0-defs.h(3.94 KB)
📄 cvmx-spxx-defs.h(62.44 KB)
📄 cvmx-srio.c(63.05 KB)
📄 cvmx-srio.h(26.68 KB)
📄 cvmx-sriomaintx-defs.h(222.52 KB)
📄 cvmx-sriox-defs.h(211.56 KB)
📄 cvmx-srxx-defs.h(14.41 KB)
📄 cvmx-sso-defs.h(87.33 KB)
📄 cvmx-stxx-defs.h(34.02 KB)
📄 cvmx-swap.h(4.11 KB)
📄 cvmx-sysinfo.c(8.78 KB)
📄 cvmx-sysinfo.h(6.45 KB)
📄 cvmx-thunder.c(9.22 KB)
📄 cvmx-thunder.h(4.54 KB)
📄 cvmx-tim-defs.h(58.36 KB)
📄 cvmx-tim.c(10.92 KB)
📄 cvmx-tim.h(12.1 KB)
📄 cvmx-tlb.c(10.12 KB)
📄 cvmx-tlb.h(5.07 KB)
📄 cvmx-tra-defs.h(4.59 KB)
📄 cvmx-tra.c(31.16 KB)
📄 cvmx-tra.h(34.28 KB)
📄 cvmx-trax-defs.h(197.09 KB)
📄 cvmx-twsi.c(16.25 KB)
📄 cvmx-twsi.h(10.22 KB)
📄 cvmx-uahcx-defs.h(181.38 KB)
📄 cvmx-uart.c(5.69 KB)
📄 cvmx-uart.h(4.58 KB)
📄 cvmx-uctlx-defs.h(50.26 KB)
📄 cvmx-usb.c(138.53 KB)
📄 cvmx-usb.h(46.67 KB)
📄 cvmx-usbcx-defs.h(259.23 KB)
📄 cvmx-usbd.c(36.09 KB)
📄 cvmx-usbd.h(9.82 KB)
📄 cvmx-usbnx-defs.h(136.12 KB)
📄 cvmx-utils.h(7.54 KB)
📄 cvmx-version.h(2.23 KB)
📄 cvmx-warn.c(2.75 KB)
📄 cvmx-warn.h(2.43 KB)
📄 cvmx-wqe.h(38.61 KB)
📄 cvmx-zip-defs.h(43.18 KB)
📄 cvmx-zip.c(7.37 KB)
📄 cvmx-zip.h(8.5 KB)
📄 cvmx-zone.c(4.7 KB)
📄 cvmx.h(3.5 KB)
📄 octeon-boot-info.h(8.08 KB)
📄 octeon-feature.c(4.71 KB)
📄 octeon-feature.h(11.94 KB)
📄 octeon-model.c(15.79 KB)
📄 octeon-model.h(16.53 KB)
📄 octeon-pci-console.c(19.73 KB)
📄 octeon-pci-console.h(5.18 KB)

Editing: cvmx-log.c

/***********************license start***************
 * Copyright (c) 2003-2010  Cavium Inc. (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 Inc. 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 INC. 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
 *
 * cvmx-log supplies a fast log buffer implementation. Each core writes
 * log data to a differnet buffer to avoid synchronization overhead. Function
 * call logging can be turned on with the GCC option "-pg".
 *
 * <hr>$Revision: 70030 $<hr>
 */
#include "cvmx.h"
#include "cvmx-core.h"
#include "cvmx-log.h"

#define CVMX_LOG_BUFFER_SIZE (1<<15)
#define CVMX_LOG_NUM_BUFFERS 4

/**
 * The possible types of log data that can be stored in the
 * buffer.
 */
typedef enum
{
    CVMX_LOG_TYPE_PC = 0,   /**< Log of the program counter location. used for code profiling / tracing */
    CVMX_LOG_TYPE_PRINTF,   /**< Constant printf format string with two 64bit arguments */
    CVMX_LOG_TYPE_DATA,     /**< Arbitrary array of dwords. Max size is 31 dwords */
    CVMX_LOG_TYPE_STRUCTURE,/**< Log a structured data element. Max size is 30 dwords */
    CVMX_LOG_TYPE_PERF,     /**< Mips performance counters control registers followed by the data */
} cvmx_log_type_t;

/**
 * Header definition for each log entry.
 */
typedef union
{
    uint64_t u64;
    struct
    {
        cvmx_log_type_t     type    : 3; /* Data in the log entry */
        uint64_t            size    : 8; /* Data size in 64bit words */
        uint64_t            cycle   :53; /* Low bits of the cycle counter as a timestamp */
    } s;
} cvmx_log_header_t;

/**
 * Circular log buffer. Each processor gets a private one to
 * write to. Log entries are added at the current write
 * location, then the write location is incremented. The
 * buffer may wrap in the middle of a log entry.
 */
static uint64_t cvmx_log_buffers[CVMX_LOG_NUM_BUFFERS][CVMX_LOG_BUFFER_SIZE];

/**
 * Current locations in the log.
 */
uint64_t *cvmx_log_buffer_write_ptr             = NULL; /* The next write will occur here */
uint64_t *cvmx_log_buffer_end_ptr               = NULL; /* Write must move to the next buffer when it equals this */
uint64_t *cvmx_log_buffer_head_ptr              = NULL; /* Pointer to begin extracting log data from */
static uint64_t *cvmx_log_buffer_read_ptr       = NULL; /* Location cvmx_display is reading from */
static uint64_t *cvmx_log_buffer_read_end_ptr   = NULL; /* Location where read will need the next buffer */
uint64_t cvmx_log_mcd0_on_full                  = 0;    /* If this is set, cvm-log will assert MCD0 when the log
                                                            is full. This is set by the remote logging utility through
                                                            the debugger interface. */

/**
 * @INTERNAL
 * Initialize the log for writing
 */
static void __cvmx_log_initialize(void) CVMX_LOG_DISABLE_PC_LOGGING;
static void __cvmx_log_initialize(void)
{
    int buf_num;

/* Link the buffers together using the last element in each buffer */
    for (buf_num=0; buf_num<CVMX_LOG_NUM_BUFFERS-1; buf_num++)
        cvmx_log_buffers[buf_num][CVMX_LOG_BUFFER_SIZE-1] = CAST64(cvmx_log_buffers[buf_num+1]);
    cvmx_log_buffers[CVMX_LOG_NUM_BUFFERS-1][CVMX_LOG_BUFFER_SIZE-1] = CAST64(NULL);

cvmx_log_buffer_head_ptr = &cvmx_log_buffers[0][0];
    cvmx_log_buffer_write_ptr = &cvmx_log_buffers[0][0];
    cvmx_log_buffer_end_ptr = cvmx_log_buffer_write_ptr + CVMX_LOG_BUFFER_SIZE-1;
}

/**
 * @INTERNAL
 * Called when the log is full of data. This function must
 * make room for more log data before returning.
 */
static void __cvmx_log_full_process(void) CVMX_LOG_DISABLE_PC_LOGGING;
static void __cvmx_log_full_process(void)
{
    if (cvmx_log_mcd0_on_full)
    {
        register uint64_t tmp;
        /* Pulse MCD0 signal so a remote utility can extract the data */
        asm volatile (
            "dmfc0 %0, $22\n"
	        "ori   %0, %0, 0x1110\n"
            "dmtc0 %0, $22\n"
            "nop\n"
            "nop\n"
            "nop\n"
            "nop\n"
            "nop\n"
            "nop\n"
            : "=r" (tmp));
    }
    /* The write ptr may have been modifed by the debugger, check it again */
    if (!(volatile uint64_t)CAST64(cvmx_log_buffer_write_ptr))
    {
        #ifndef __KERNEL__
            /* Disabled for the Linux kernel since printk is also profiled */
            cvmx_dprintf("Log is full, reusing first buffer\n");
        #endif
        *cvmx_log_buffer_end_ptr = CAST64(cvmx_log_buffer_head_ptr);
        cvmx_log_buffer_write_ptr = cvmx_log_buffer_head_ptr;
        cvmx_log_buffer_end_ptr = cvmx_log_buffer_write_ptr + CVMX_LOG_BUFFER_SIZE-1;
        cvmx_log_buffer_head_ptr = CASTPTR(uint64_t, *cvmx_log_buffer_end_ptr);
        *cvmx_log_buffer_end_ptr = CAST64(NULL);
    }
}

/**
 * @INTERNAL
 * Simple inline function to build a log header
 *
 * @param type   Type of header to build
 * @param size   Amount of data that follows the header in dwords
 * @return The header
 */
static inline uint64_t __cvmx_log_build_header(cvmx_log_type_t type, uint64_t size) CVMX_LOG_DISABLE_PC_LOGGING;
static inline uint64_t __cvmx_log_build_header(cvmx_log_type_t type, uint64_t size)
{
    cvmx_log_header_t header;
    header.u64 = 0;
    header.s.type = type;
    header.s.size = size;
    header.s.cycle = cvmx_get_cycle();
    return header.u64;
}

/**
 * @INTERNAL
 * Function to write and increment the position. It rotates
 * to the next log buffer as necessary.
 *
 * @param data   Data to write to the log
 */
static inline void __cvmx_log_write(uint64_t data) CVMX_LOG_DISABLE_PC_LOGGING;
static inline void __cvmx_log_write(uint64_t data)
{
    /* Check and see if we need to rotate the log */
    if (cvmx_likely(cvmx_log_buffer_write_ptr != cvmx_log_buffer_end_ptr))
    {
        /* No rotate is necessary, just write the data */
        *cvmx_log_buffer_write_ptr++ = data;
    }
    else
    {
        /* Initialize the log if necessary */
        if (cvmx_unlikely(cvmx_log_buffer_head_ptr == NULL))
            __cvmx_log_initialize();
        else
        {
            cvmx_log_buffer_write_ptr = CASTPTR(uint64_t, *cvmx_log_buffer_end_ptr);
            if (cvmx_likely(cvmx_log_buffer_write_ptr))
            {
                /* Rotate the log. Might be a good time to send the old buffer
                    somewhere */
                cvmx_log_buffer_end_ptr = cvmx_log_buffer_write_ptr + CVMX_LOG_BUFFER_SIZE-1;
            }
            else
                __cvmx_log_full_process();    /* After this function returns, the log must be ready for updates */
        }
        *cvmx_log_buffer_write_ptr++ = data;
    }
}

/**
 * Log a program counter address to the log. This is caused by
 * the assembly code function mcount when writing the PC value
 * is more complicated that the simple case support by it.
 *
 * @param pc     Program counter address to log
 */
void cvmx_log_pc(uint64_t pc) CVMX_LOG_DISABLE_PC_LOGGING;
void cvmx_log_pc(uint64_t pc)
{
    __cvmx_log_write(__cvmx_log_build_header(CVMX_LOG_TYPE_PC, 1));
    __cvmx_log_write(pc);
}

/**
 * Log a constant printf style format string with 0 to 4
 * arguments. The string must persist until the log is read,
 * but the parameters are copied into the log.
 *
 * @param format  Constant printf style format string.
 */
void cvmx_log_printf0(const char *format)
{
    __cvmx_log_write(__cvmx_log_build_header(CVMX_LOG_TYPE_PRINTF, 1));
    __cvmx_log_write(CAST64(format));
}

/**
 * Log a constant printf style format string with 0 to 4
 * arguments. The string must persist until the log is read,
 * but the parameters are copied into the log.
 *
 * @param format  Constant printf style format string.
 * @param number1 64bit argument to the printf format string
 * @param number2 64bit argument to the printf format string
 */
void cvmx_log_printf2(const char *format, uint64_t number1, uint64_t number2)
{
    __cvmx_log_write(__cvmx_log_build_header(CVMX_LOG_TYPE_PRINTF, 3));
    __cvmx_log_write(CAST64(format));
    __cvmx_log_write(number1);
    __cvmx_log_write(number2);
}

/**
 * Log a constant printf style format string with 0 to 4
 * arguments. The string must persist until the log is read,
 * but the parameters are copied into the log.
 *
 * @param format  Constant printf style format string.
 * @param number1 64bit argument to the printf format string
 * @param number2 64bit argument to the printf format string
 * @param number3 64bit argument to the printf format string
 */
void cvmx_log_printf3(const char *format, uint64_t number1, uint64_t number2, uint64_t number3)
{
    __cvmx_log_write(__cvmx_log_build_header(CVMX_LOG_TYPE_PRINTF, 4));
    __cvmx_log_write(CAST64(format));
    __cvmx_log_write(number1);
    __cvmx_log_write(number2);
    __cvmx_log_write(number3);
}

/**
 * Log a constant printf style format string with 0 to 4
 * arguments. The string must persist until the log is read,
 * but the parameters are copied into the log.
 *
 * @param format  Constant printf style format string.
 * @param number1 64bit argument to the printf format string
 * @param number2 64bit argument to the printf format string
 * @param number3 64bit argument to the printf format string
 * @param number4 64bit argument to the printf format string
 */
void cvmx_log_printf4(const char *format, uint64_t number1, uint64_t number2, uint64_t number3, uint64_t number4)
{
    __cvmx_log_write(__cvmx_log_build_header(CVMX_LOG_TYPE_PRINTF, 5));
    __cvmx_log_write(CAST64(format));
    __cvmx_log_write(number1);
    __cvmx_log_write(number2);
    __cvmx_log_write(number3);
    __cvmx_log_write(number4);
}

/**
 * Log an arbitrary block of 64bit words. At most 255 64bit
 * words can be logged. The words are copied into the log.
 *
 * @param size_in_dwords
 *               Number of 64bit dwords to copy into the log.
 * @param data   Array of 64bit dwords to copy
 */
void cvmx_log_data(uint64_t size_in_dwords, const uint64_t *data)
{
    if (size_in_dwords > 255)
        size_in_dwords = 255;

__cvmx_log_write(__cvmx_log_build_header(CVMX_LOG_TYPE_DATA, size_in_dwords));
    while (size_in_dwords--)
        __cvmx_log_write(*data++);
}

/**
 * Log a structured data object. Post processing will use the
 * debugging information in the ELF file to determine how to
 * display the structure. Max of 2032 bytes.
 *
 * Example:
 * cvmx_log_structure("cvmx_wqe_t", work, sizeof(*work));
 *
 * @param type   C typedef expressed as a string. This will be used to
 *               lookup the structure in the debugging infirmation.
 * @param data   Data to be written to the log.
 * @param size_in_bytes
 *               Size if the data in bytes. Normally you'll use the
 *               sizeof() operator here.
 */
void cvmx_log_structure(const char *type, void *data, int size_in_bytes)
{
    uint64_t size_in_dwords = (size_in_bytes + 7) >> 3;
    uint64_t *ptr = (uint64_t*)data;

if (size_in_dwords > 254)
        size_in_dwords = 254;

__cvmx_log_write(__cvmx_log_build_header(CVMX_LOG_TYPE_STRUCTURE, size_in_dwords + 1));
    __cvmx_log_write(CAST64(type));
    while (size_in_dwords--)
        __cvmx_log_write(*ptr++);
}

/**
 * Setup the mips performance counters
 *
 * @param counter1 Event type for counter 1
 * @param counter2 Event type for counter 2
 */
void cvmx_log_perf_setup(cvmx_core_perf_t counter1, cvmx_core_perf_t counter2)
{
    cvmx_core_perf_control_t control;

control.u32 = 0;
    control.s.event = counter1;
    control.s.u = 1;
    control.s.s = 1;
    control.s.k = 1;
    control.s.ex = 1;
    asm ("mtc0 %0, $25, 0\n" : : "r"(control.u32));
    control.s.event = counter2;
    asm ("mtc0 %0, $25, 2\n" : : "r"(control.u32));
}

/**
 * Log the performance counters
 */
void cvmx_log_perf(void)
{
    uint64_t control1;
    uint64_t control2;
    uint64_t data1;
    uint64_t data2;
    asm ("dmfc0 %0, $25, 1\n" : "=r"(data1));
    asm ("dmfc0 %0, $25, 3\n" : "=r"(data2));
    asm ("mfc0 %0, $25, 0\n" : "=r"(control1));
    asm ("mfc0 %0, $25, 2\n" : "=r"(control2));
    __cvmx_log_write(__cvmx_log_build_header(CVMX_LOG_TYPE_PERF, 3));
    __cvmx_log_write(((control1 & 0xffffffff) << 32) | (control2 & 0xffffffff));
    __cvmx_log_write(data1);
    __cvmx_log_write(data2);
}

/**
 * @INTERNAL
 * Read a dword from the log
 *
 * @return the dword
 */
static uint64_t __cvmx_log_read(void) CVMX_LOG_DISABLE_PC_LOGGING;
static uint64_t __cvmx_log_read(void)
{
    uint64_t data;

/* Check and see if we need to rotate the log */
    if (cvmx_likely(cvmx_log_buffer_read_ptr != cvmx_log_buffer_read_end_ptr))
    {
        /* No rotate is necessary, just read the data */
        data = *cvmx_log_buffer_read_ptr++;
    }
    else
    {
        cvmx_log_buffer_read_ptr = CASTPTR(uint64_t, *cvmx_log_buffer_read_end_ptr);
        if (cvmx_likely(cvmx_log_buffer_read_ptr))
        {
            /* Rotate to the next log buffer */
            cvmx_log_buffer_read_end_ptr = cvmx_log_buffer_read_ptr + CVMX_LOG_BUFFER_SIZE-1;
            data = *cvmx_log_buffer_read_ptr++;
        }
        else
        {
            /* No more log buffers, return 0 */
            cvmx_log_buffer_read_end_ptr = NULL;
            data = 0;
        }
    }

return data;
}

/**
 * Display the current log in a human readable format.
 */
void cvmx_log_display(void)
{
    unsigned int i;
    cvmx_log_header_t header;

cvmx_log_buffer_read_ptr = cvmx_log_buffer_head_ptr;
    cvmx_log_buffer_read_end_ptr = cvmx_log_buffer_read_ptr + CVMX_LOG_BUFFER_SIZE-1;

while (cvmx_log_buffer_read_ptr && (cvmx_log_buffer_read_ptr != cvmx_log_buffer_write_ptr))
    {
        header.u64 = __cvmx_log_read();
        if (header.s.cycle == 0)
            continue;
        printf("%llu: ", (unsigned long long)header.s.cycle);
        switch (header.s.type)
        {
            case CVMX_LOG_TYPE_PC:
                if (header.s.size == 1)
                    printf("pc 0x%016llx\n", (unsigned long long)__cvmx_log_read());
                else
                    printf("Illegal size (%d) for log entry: pc\n", header.s.size);
                break;
            case CVMX_LOG_TYPE_PRINTF:
                switch (header.s.size)
                {
                    case 1:
                        printf(CASTPTR(const char, __cvmx_log_read()));
                        break;
                    case 2:
                        printf(CASTPTR(const char, __cvmx_log_read()), __cvmx_log_read());
                        break;
                    case 3:
                        printf(CASTPTR(const char, __cvmx_log_read()), __cvmx_log_read(), __cvmx_log_read());
                        break;
                    case 4:
                        printf(CASTPTR(const char, __cvmx_log_read()), __cvmx_log_read(), __cvmx_log_read(), __cvmx_log_read());
                        break;
                    case 5:
                        printf(CASTPTR(const char, __cvmx_log_read()), __cvmx_log_read(), __cvmx_log_read(), __cvmx_log_read(), __cvmx_log_read());
                        break;
                    default:
                        printf("Illegal size (%d) for log entry: printf\n", header.s.size);
                        break;
                }
                printf("\n");
                break;
            case CVMX_LOG_TYPE_DATA:
                printf("data");
                for (i=0; i<header.s.size; i++)
                    printf(" 0x%016llx", (unsigned long long)__cvmx_log_read());
                printf("\n");
                break;
            case CVMX_LOG_TYPE_STRUCTURE:
                printf("struct %s", CASTPTR(const char, __cvmx_log_read()));
                for (i=1; i<header.s.size; i++)
                    printf(" 0x%016llx", (unsigned long long)__cvmx_log_read());
                printf("\n");
                break;
            case CVMX_LOG_TYPE_PERF:
                if (header.s.size == 3)
                {
                    unsigned long long control = __cvmx_log_read();
                    unsigned long long data1 = __cvmx_log_read();
                    unsigned long long data2 = __cvmx_log_read();
                    printf("perf control=0x%016llx data1=0x%016llx data2=0x%016llx\n", control, data1, data2);
                }
                else
                    printf("Illegal size (%d) for log entry: perf\n", header.s.size);
                break;
            default:
                break;
        }
    }
}

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