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Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/mach-common/profpkt.h')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/mach-common/profpkt.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/mach-common/profpkt.h b/target/linux/ubicom32/files/arch/ubicom32/mach-common/profpkt.h new file mode 100644 index 000000000..37d9219a6 --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/mach-common/profpkt.h @@ -0,0 +1,158 @@ + +/* + * arch/ubicom32/mach-common/profpkt.c + * Ubicom32 Profiler packet formats for communication between the linux proc driver and the profiler display tool + * + * (C) Copyright 2009, Ubicom, Inc. + * + * This file is part of the Ubicom32 Linux Kernel Port. + * + * The Ubicom32 Linux Kernel Port is free software: you can redistribute + * it and/or modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, either version 2 of the + * License, or (at your option) any later version. + * + * The Ubicom32 Linux Kernel Port is distributed in the hope that it + * will be useful, but WITHOUT ANY WARRANTY; without even the implied + * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with the Ubicom32 Linux Kernel Port. If not, + * see <http://www.gnu.org/licenses/>. + */ + +#define PROFILE_PORT 51080 +#define PROFILE_POSIX_NAME_LENGTH 32 + +/* + * profile UDP packet format for communicating between ip3k and host + * + * every packet starts with a header, followed by samples. + * samples are only taken for non-hrt threads that are + * active + */ +#define PROF_MAGIC 0x3ea0 +#define PROF_MAGIC_COUNTERS 0x9ea0 +#define PROF_MAGIC_MAPS 0xaea0 + +/* + * Versions (31 max): + * 1 to 4 were before 6.0 release, development versions + * 5 was forward compatible version, shipped with 6.0 and 6.1 + * 6 adds heap packets, and clock_freq to header, shipped with 6.2 + * 7 adds a sequence numbers to check for dropped packets, shipped with 6.3.5 + * 8 adds mqueue timing information, shipped with 6.3.5 + * 9 adds sdram heap size information, shipped with 6.4 + * 10 adds heapmem heap callers and long latency stack traces. shipped with 6.4 + * 11 adds support for Mars (IP5K). shipped with 6.10 + * 12 adds more support for Mars. Shipped with 7.0 + * 13 adds per sample latency measurement. Shipped with 7.2 + * 14 changes the heap format and adds a string packet. Shipped with 7.4 + * 15 adds dsr stats and posix. shipped with 7.6 + * 16 corrects maximum packet count for Ares. ships with 7.9 + * 17 adds a5 register value to sample + */ + +#define PROFILE_VERSION 17 +#define PROFILE_MAX_PACKET_SIZE 1440 + +#define PROFILE_MAX_THREADS 16 + +/* + * each packet starts with a profile_header, then sample_count samples + * samples are gprof samples of pc, the return address, condition codes, and + * active threads + */ +struct profile_header { + u16_t magic; /* magic number and version */ + u8_t header_size; /* number of bytes in profile header */ + u8_t sample_count; /* number of samples in the packet */ + u32_t clocks; /* clock counter value */ + u32_t instruction_count[PROFILE_MAX_THREADS]; + /* instructions executed per thread */ + u32_t profile_instructions; /* instructions executed by profiler mainline */ + u16_t enabled; /* which threads are enabled */ + u16_t hrt; /* which threads are hrt */ + u16_t high; /* which threads are high priority */ + u16_t profiler_thread; /* which thread runs the profiler */ + u32_t heap_free; /* current free on-cihp heap space in bytes */ + u32_t heap_low_water; /* on-chip heap low water mark */ + u32_t netpage_free; /* number of free on-chip net pages */ + u32_t netpage_low_water; /* low water mark on free on-chip netpages */ + u32_t min_sp[PROFILE_MAX_THREADS]; + /* stack pointer values per thread */ + u32_t clock_freq; /* clock frequency (Hz) of system being analyzed */ + u32_t seq_num; /* to detect dropped profiler packets */ + u32_t timing_sequence; /* sample number since boot */ + u32_t timing_interval; /* second per sample timing interval */ + u32_t timing_worst_time; /* duration of longest finction called, in core clocks */ + u32_t timing_function; /* address of longest function */ + u32_t timing_average; /* average time of all functions in last interval */ + u32_t timing_count; /* number of functions called in last interval */ + u32_t extheap_free; /* current free extmem heap space in bytes */ + u32_t extheap_low_water; /* extmem heap low water mark */ + u32_t cpu_id; /* CHIP_ID register contents */ + u32_t perf_counters[4]; /* contents of the CPU performance counters */ + u8_t perf_config[4]; /* what is being counted */ + u32_t ddr_freq; /* DDR clock frequency */ + u32_t extnetpage_free; /* number of free off chip net pages */ + u32_t extnetpage_low_water; /* low water mark on off-chip free netpages */ + u32_t dsr_max_latency; /* max time to process a dsr interrupt, in clocks, since last packet */ + u32_t dsr_ave_latency; /* average dsr latency over last DSR_STATS_RECENT_COUNT interrupts */ + u32_t dsr_count; /* number of dsr interrupts since last packet */ +}; + +struct profile_header_counters { + u16_t magic; + u16_t ultra_count; /* how many ultra counters follow this */ + u32_t ultra_sample_time; /* in chip clocks */ + u32_t linux_count; /* how many linux counters follow this */ + u32_t linux_sample_time; +}; + +/* + * values chosen so all counter values fit in a single 1400 byte UDP packet + */ +#define PROFILE_COUNTER_NAME_LENGTH 20 +#define PROFILE_MAX_COUNTERS ((PROFILE_MAX_PACKET_SIZE - sizeof(struct profile_header_counters)) / (PROFILE_COUNTER_NAME_LENGTH + 4)) + +struct profile_counter_pkt { + char name[PROFILE_COUNTER_NAME_LENGTH]; + unsigned int value; +}; + +/* + * send memory maps from linux to profiler tool + */ + +struct profile_header_maps { + u16_t magic; + u16_t count; + u32_t page_shift; +}; + +#define PROFILE_MAP_NUM_TYPES 32 + +/* types 0-15: size field is order. True size is 2^order */ +#define PROFILE_MAP_TYPE_UNKNOWN 0 +#define PROFILE_MAP_TYPE_FREE 1 +#define PROFILE_MAP_TYPE_SMALL 2 +#define PROFILE_MAP_TYPE_FS 3 +/* types 16-31: size field is pages. True size is (1 << PAGE_SHIFT) * size */ +#define PROFILE_MAP_SIZE_TYPE 16 +#define PROFILE_MAP_TYPE_TEXT 16 +#define PROFILE_MAP_TYPE_STACK 17 +#define PROFILE_MAP_TYPE_APP_DATA 18 +#define PROFILE_MAP_TYPE_CACHE 19 +#define PROFILE_MAP_RESERVED 24 + +#define PROFILE_MAP_TYPE_SHIFT 11 +#define PROFILE_MAP_SIZE_MASK 0x7ff + +struct profile_map { + u16_t start; /* start page number of segment, relative to start of DRAM */ + u16_t type_size; /* type (4 bits) of the segment and size in pages (12 bits) */ +}; + +#define PROFILE_MAX_MAPS (PROFILE_MAX_PACKET_SIZE - sizeof(struct profile_header_maps)) / sizeof(struct profile_map) |