[igt-dev] [PATCH i-g-t v6] intel-gpu-top: Rewrite the tool to be safe to use
Rinat Ibragimov
ibragimovrinat at mail.ru
Mon Apr 23 12:18:11 UTC 2018
Ping?
>Понедельник, 9 апреля 2018, 15:26 +03:00 от Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>:
>
>
>[Adding some people to Cc for more ack/nack type feedback.]
>
>Executive question is ack or nack on replacing intel_gpu_top with a new
>implementation which uses only perf PMU for counter gathering.
>
>A short history on how this came to be:
>
>There was a recent external patch contribution from Rinat Ibragimov to
>support more platforms from the existing intel_gpu_top. But as the tool
>is not safe to use Chris Wilson suggested to maybe just replace it.
>
>As it happens I had a good start to do this quickly and cheaply, in the
>form of one prototype I did recently, which only needed ripping some
>bits out, and polishing the rest.
>
>Eero and Rinat kindly did a lot of platform coverage testing and the
>rewrite seems ready for next steps.
>
>I need to stress that as the commit notes, the new tool has a slightly
>different scope as that it doesn't expose GPU functional level data, but
>only overall stats like power, frequencies, RC6, interrupts, IMC memory
>bandwidth and per command streamer busyness, mi_semaphore and mi_event
>waits. My thinking was that for more functional level profiling gpu-top
>(OA) should be used.
>
>Also the "run a command" and CSV output features are not not supported
>since both can be done directly via perf stat.
>
>Regards,
>
>Tvrtko
>
>On 04/04/2018 16:26, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin < tvrtko.ursulin at intel.com >
>>
>> intel-gpu-top is a dangerous tool which can hang machines due unsafe mmio
>> register access. This patch rewrites it to use only PMU.
>>
>> Only overall command streamer busyness and GPU global data such as power
>> and frequencies are included in this new version.
>>
>> For access to more GPU functional unit level data, an OA metric based tool
>> like gpu-top should be used instead.
>>
>> v2:
>> * Sort engines by class and instance.
>> * Do not wait for one sampling period to display something on screen.
>> * Move code out of the asserts. (Rinat Ibragimov)
>> * Continuously adapt to terminal size. (Rinat Ibragimov)
>>
>> v3:
>> * Change layout and precision of some field. (Chris Wilson)
>> Eero Tamminen:
>> * Use more user friendly engine names.
>> * Don't error out if a counter is missing.
>> * Add IMC read/write bandwidth.
>> * Report minimum required kernel version.
>>
>> v4:
>> * Really support 4.16 by skipping of missing engines.
>> * Simpler and less hacky float printing.
>> * Preserve copyright header. (Antonio Argenziano)
>> * Simplify engines_ptr macro. (Rinat Ibragimov)
>>
>> v5:
>> * Get RAPL unit from sysfs.
>> * Consolidate sysfs paths with a macro.
>> * Tidy error handling by carrying over and reporting errno.
>> * Check against console height on all prints.
>> * More readable minimum kernel version message. (Eero Tamminen)
>> * Column banner for per engine stats. (Eero Tamminen)
>>
>> v6:
>> * Man page update. (Eero Tamminen)
>>
>> Signed-off-by: Tvrtko Ursulin < tvrtko.ursulin at intel.com >
>> Cc: Chris Wilson < chris at chris-wilson.co.uk >
>> Cc: Lionel Landwerlin < lionel.g.landwerlin at intel.com >
>> Cc: Petri Latvala < petri.latvala at intel.com >
>> Cc: Eero Tamminen < eero.t.tamminen at intel.com >
>> Cc: Rinat Ibragimov < ibragimovrinat at mail.ru >
>> Reviewed-by: Lionel Landwerlin < lionel.g.landwerlin at intel.com > # v1
>> Reviewed-by: Chris Wilson < chris at chris-wilson.co.uk > # v0.5
>> ---
>> lib/igt_perf.c | 6 +
>> lib/igt_perf.h | 1 +
>> man/intel_gpu_top.rst | 41 +-
>> tools/Makefile.am | 2 +
>> tools/intel_gpu_top.c | 1250 +++++++++++++++++++++++++++----------------------
>> tools/meson.build | 6 +-
>> 6 files changed, 719 insertions(+), 587 deletions(-)
>>
>> diff --git a/lib/igt_perf.c b/lib/igt_perf.c
>> index 99d82ea51c9b..e3dec2cc29c7 100644
>> --- a/lib/igt_perf.c
>> +++ b/lib/igt_perf.c
>> @@ -69,3 +69,9 @@ int igt_perf_open(uint64_t type, uint64_t config)
>> return _perf_open(type, config, -1,
>> PERF_FORMAT_TOTAL_TIME_ENABLED);
>> }
>> +
>> +int igt_perf_open_group(uint64_t type, uint64_t config, int group)
>> +{
>> +return _perf_open(type, config, group,
>> + PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_GROUP);
>> +}
>> diff --git a/lib/igt_perf.h b/lib/igt_perf.h
>> index 614ea5d23fa6..e00718f4769a 100644
>> --- a/lib/igt_perf.h
>> +++ b/lib/igt_perf.h
>> @@ -55,5 +55,6 @@ uint64_t i915_type_id(void);
>> int perf_i915_open(uint64_t config);
>> int perf_i915_open_group(uint64_t config, int group);
>> int igt_perf_open(uint64_t type, uint64_t config);
>> +int igt_perf_open_group(uint64_t type, uint64_t config, int group);
>>
>> #endif /* I915_PERF_H */
>> diff --git a/man/intel_gpu_top.rst b/man/intel_gpu_top.rst
>> index a5f7175bb1a0..19c712307d28 100644
>> --- a/man/intel_gpu_top.rst
>> +++ b/man/intel_gpu_top.rst
>> @@ -7,9 +7,9 @@ Display a top-like summary of Intel GPU usage
>> ---------------------------------------------
>> .. include:: defs.rst
>> :Author: IGT Developers < igt-dev at lists.freedesktop.org >
>> -:Date: 2016-03-01
>> +:Date: 2018-04-04
>> :Version: |PACKAGE_STRING|
>> -:Copyright: 2009,2011,2012,2016 Intel Corporation
>> +:Copyright: 2009,2011,2012,2016,2018 Intel Corporation
>> :Manual section: |MANUAL_SECTION|
>> :Manual group: |MANUAL_GROUP|
>>
>> @@ -21,42 +21,25 @@ SYNOPSIS
>> DESCRIPTION
>> ===========
>>
>> -**intel_gpu_top** is a tool to display usage information of an Intel GPU. It
>> -requires root privilege to map the graphics device.
>> +**intel_gpu_top** is a tool to display usage information on Intel GPU's.
>> +
>> +The tool gathers data using perf performance counters (PMU) exposed by i915 and other platform drivers like RAPL (power) and Uncore IMC (memory bandwidth).
>>
>> OPTIONS
>> =======
>>
>> --s SAMPLES
>> - Number of samples to acquire per second.
>> -
>> --o FILE
>> - Collect usage statistics to FILE. If file is "-", run non-interactively
>> - and output statistics to stdout.
>> -
>> --e COMMAND
>> - Execute COMMAND to profile, and leave when it is finished. Note that the
>> - entire command with all parameters should be included as one parameter.
>> +-s <ms>
>> + Refresh period in milliseconds.
>>
>> -h
>> - Show usage notes.
>> + Show help text.
>>
>> -EXAMPLES
>> -========
>> -
>> -intel_gpu_top -o "cairo-trace-gvim.log" -s 100 -e "cairo-perf-trace /tmp/gvim"
>> - Run cairo-perf-trace with /tmp/gvim trace, non-interactively, saving the
>> - statistics into cairo-trace-gvim.log file, and collecting 100 samples per
>> - second.
>> -
>> -Note that idle units are not displayed, so an entirely idle GPU will only
>> -display the ring status and header.
>> +LIMITATIONS
>> +===========
>>
>> -BUGS
>> -====
>> +* Not all metrics are supported on all platforms. Where a metric is unsupported it's value will be replaced by a dashed line.
>>
>> -Some GPUs report some units as busy when they aren't, such that even when idle
>> -and not hung, it will show up as 100% busy.
>> +* Non-root access to perf counters is controlled by the *perf_event_paranoid* sysctl.
>>
>> REPORTING BUGS
>> ==============
>> diff --git a/tools/Makefile.am b/tools/Makefile.am
>> index 09b6dbcc3ece..a0b016ddd7ff 100644
>> --- a/tools/Makefile.am
>> +++ b/tools/Makefile.am
>> @@ -28,6 +28,8 @@ intel_aubdump_la_LDFLAGS = -module -avoid-version -no-undefined
>> intel_aubdump_la_SOURCES = aubdump.c
>> intel_aubdump_la_LIBADD = $(top_builddir)/lib/libintel_tools.la -ldl
>>
>> +intel_gpu_top_LDADD = $(top_builddir)/lib/libigt_perf.la
>> +
>> bin_SCRIPTS = intel_aubdump
>> CLEANFILES = $(bin_SCRIPTS)
>>
>> diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
>> index 098e6ce3ff86..b923c3cfbe97 100644
>> --- a/tools/intel_gpu_top.c
>> +++ b/tools/intel_gpu_top.c
>> @@ -1,6 +1,5 @@
>> /*
>> - * Copyright © 2007 Intel Corporation
>> - * Copyright © 2011 Intel Corporation
>> + * Copyright © 2007-2018 Intel Corporation
>> *
>> * Permission is hereby granted, free of charge, to any person obtaining a
>> * copy of this software and associated documentation files (the "Software"),
>> @@ -24,695 +23,832 @@
>> * Authors:
>> * Eric Anholt < eric at anholt.net >
>> * Eugeni Dodonov < eugeni.dodonov at intel.com >
>> - *
>> */
>>
>> -#include "config.h"
>> -
>> -#include <inttypes.h>
>> -#include <unistd.h>
>> -#include <stdlib.h>
>> #include <stdio.h>
>> -#include <err.h>
>> -#include <sys/ioctl.h>
>> -#include <sys/time.h>
>> -#include <sys/wait.h>
>> +#include <sys/types.h>
>> +#include <dirent.h>
>> +#include <stdint.h>
>> +#include <assert.h>
>> #include <string.h>
>> -#ifdef HAVE_TERMIOS_H
>> -#include <termios.h>
>> -#endif
>> -#include "intel_io.h"
>> -#include "instdone.h"
>> -#include "intel_reg.h"
>> -#include "intel_chipset.h"
>> -#include "drmtest.h"
>> -
>> -#define FORCEWAKE 0xA18C
>> -#define FORCEWAKE_ACK 0x130090
>> -
>> -#define SAMPLES_PER_SEC 10000
>> -#define SAMPLES_TO_PERCENT_RATIO (SAMPLES_PER_SEC / 100)
>> -
>> -#define MAX_NUM_TOP_BITS 100
>> -
>> -#define HAS_STATS_REGS(devid)IS_965(devid)
>> -
>> -struct top_bit {
>> -struct instdone_bit *bit;
>> -int count;
>> -} top_bits[MAX_NUM_TOP_BITS];
>> -struct top_bit *top_bits_sorted[MAX_NUM_TOP_BITS];
>> -
>> -static uint32_t instdone, instdone1;
>> -
>> -static const char *bars[] = {
>> -" ",
>> -"▏",
>> -"▎",
>> -"▍",
>> -"▌",
>> -"▋",
>> -"▊",
>> -"▉",
>> -"█"
>> -};
>> +#include <ctype.h>
>> +#include <stdlib.h>
>> +#include <unistd.h>
>> +#include <sys/stat.h>
>> +#include <fcntl.h>
>> +#include <inttypes.h>
>> +#include <sys/ioctl.h>
>> +#include <errno.h>
>> +#include <math.h>
>> +#include <locale.h>
>> +
>> +#include "igt_perf.h"
>>
>> -enum stats_counts {
>> -IA_VERTICES,
>> -IA_PRIMITIVES,
>> -VS_INVOCATION,
>> -GS_INVOCATION,
>> -GS_PRIMITIVES,
>> -CL_INVOCATION,
>> -CL_PRIMITIVES,
>> -PS_INVOCATION,
>> -PS_DEPTH,
>> -STATS_COUNT
>> +struct pmu_pair {
>> +uint64_t cur;
>> +uint64_t prev;
>> };
>>
>> -const uint32_t stats_regs[STATS_COUNT] = {
>> -IA_VERTICES_COUNT_QW,
>> -IA_PRIMITIVES_COUNT_QW,
>> -VS_INVOCATION_COUNT_QW,
>> -GS_INVOCATION_COUNT_QW,
>> -GS_PRIMITIVES_COUNT_QW,
>> -CL_INVOCATION_COUNT_QW,
>> -CL_PRIMITIVES_COUNT_QW,
>> -PS_INVOCATION_COUNT_QW,
>> -PS_DEPTH_COUNT_QW,
>> +struct pmu_counter {
>> +bool present;
>> +uint64_t config;
>> +unsigned int idx;
>> +struct pmu_pair val;
>> };
>>
>> -const char *stats_reg_names[STATS_COUNT] = {
>> -"vert fetch",
>> -"prim fetch",
>> -"VS invocations",
>> -"GS invocations",
>> -"GS prims",
>> -"CL invocations",
>> -"CL prims",
>> -"PS invocations",
>> -"PS depth pass",
>> +struct engine {
>> +const char *name;
>> +const char *display_name;
>> +
>> +unsigned int class;
>> +unsigned int instance;
>> +
>> +unsigned int num_counters;
>> +
>> +struct pmu_counter busy;
>> +struct pmu_counter wait;
>> +struct pmu_counter sema;
>> };
>>
>> -uint64_t stats[STATS_COUNT];
>> -uint64_t last_stats[STATS_COUNT];
>> +struct engines {
>> +unsigned int num_engines;
>> +unsigned int num_counters;
>> +DIR *root;
>> +int fd;
>> +struct pmu_pair ts;
>> +
>> +int rapl_fd;
>> +double rapl_scale;
>> +const char *rapl_unit;
>> +
>> +int imc_fd;
>> +double imc_reads_scale;
>> +const char *imc_reads_unit;
>> +double imc_writes_scale;
>> +const char *imc_writes_unit;
>> +
>> +struct pmu_counter freq_req;
>> +struct pmu_counter freq_act;
>> +struct pmu_counter irq;
>> +struct pmu_counter rc6;
>> +struct pmu_counter rapl;
>> +struct pmu_counter imc_reads;
>> +struct pmu_counter imc_writes;
>> +
>> +struct engine engine;
>> +};
>>
>> -static unsigned long
>> -gettime(void)
>> +static uint64_t
>> +get_pmu_config(int dirfd, const char *name, const char *counter)
>> {
>> - struct timeval t;
>> - gettimeofday(&t, NULL);
>> - return (t.tv_usec + (t.tv_sec * 1000000));
>> -}
>> +char buf[128], *p;
>> +int fd, ret;
>>
>> -static int
>> -top_bits_sort(const void *a, const void *b)
>> -{
>> -struct top_bit * const *bit_a = a;
>> -struct top_bit * const *bit_b = b;
>> -int a_count = (*bit_a)->count;
>> -int b_count = (*bit_b)->count;
>> +ret = snprintf(buf, sizeof(buf), "%s-%s", name, counter);
>> +if (ret < 0 || ret == sizeof(buf))
>> +return -1;
>>
>> -if (a_count < b_count)
>> -return 1;
>> -else if (a_count == b_count)
>> -return 0;
>> -else
>> +fd = openat(dirfd, buf, O_RDONLY);
>> +if (fd < 0)
>> return -1;
>> -}
>>
>> -static void
>> -update_idle_bit(struct top_bit *top_bit)
>> -{
>> -uint32_t reg_val;
>> +ret = read(fd, buf, sizeof(buf));
>> +close(fd);
>> +if (ret <= 0)
>> +return -1;
>>
>> -if (top_bit->bit->reg == INSTDONE_1)
>> -reg_val = instdone1;
>> -else
>> -reg_val = instdone;
>> +p = index(buf, '0');
>> +if (!p)
>> +return -1;
>>
>> -if ((reg_val & top_bit->bit->bit) == 0)
>> -top_bit->count++;
>> +return strtoul(p, NULL, 0);
>> }
>>
>> -static void
>> -print_clock(const char *name, int clock) {
>> -if (clock == -1)
>> -printf("%s clock: unknown", name);
>> +#define engine_ptr(engines, n) (&engines->engine + (n))
>> +
>> +static const char *class_display_name(unsigned int class)
>> +{
>> +switch (class) {
>> +case I915_ENGINE_CLASS_RENDER:
>> +return "Render/3D";
>> +case I915_ENGINE_CLASS_COPY:
>> +return "Blitter";
>> +case I915_ENGINE_CLASS_VIDEO:
>> +return "Video";
>> +case I915_ENGINE_CLASS_VIDEO_ENHANCE:
>> +return "VideoEnhance";
>> +default:
>> +return "[unknown]";
>> +}
>> +}
>> +
>> +static int engine_cmp(const void *__a, const void *__b)
>> +{
>> +const struct engine *a = (struct engine *)__a;
>> +const struct engine *b = (struct engine *)__b;
>> +
>> +if (a->class != b->class)
>> +return a->class - b->class;
>> else
>> -printf("%s clock: %d Mhz", name, clock);
>> +return a->instance - b->instance;
>> }
>>
>> -static int
>> -print_clock_info(struct pci_device *pci_dev)
>> +static struct engines *discover_engines(void)
>> {
>> -uint32_t devid = pci_dev->device_id;
>> -uint16_t gcfgc;
>> +const char *sysfs_root = "/sys/devices/i915/events";
>> +struct engines *engines;
>> +struct dirent *dent;
>> +int ret = 0;
>> +DIR *d;
>>
>> -if (IS_GM45(devid)) {
>> -int core_clock = -1;
>> +engines = malloc(sizeof(struct engines));
>> +if (!engines)
>> +return NULL;
>>
>> -pci_device_cfg_read_u16(pci_dev, &gcfgc, I915_GCFGC);
>> +memset(engines, 0, sizeof(*engines));
>>
>> -switch (gcfgc & 0xf) {
>> -case 8:
>> -core_clock = 266;
>> -break;
>> -case 9:
>> -core_clock = 320;
>> -break;
>> -case 11:
>> -core_clock = 400;
>> -break;
>> -case 13:
>> -core_clock = 533;
>> -break;
>> -}
>> -print_clock("core", core_clock);
>> -} else if (IS_965(devid) && IS_MOBILE(devid)) {
>> -int render_clock = -1, sampler_clock = -1;
>> +engines->num_engines = 0;
>>
>> -pci_device_cfg_read_u16(pci_dev, &gcfgc, I915_GCFGC);
>> +d = opendir(sysfs_root);
>> +if (!d)
>> +return NULL;
>>
>> -switch (gcfgc & 0xf) {
>> -case 2:
>> -render_clock = 250; sampler_clock = 267;
>> -break;
>> -case 3:
>> -render_clock = 320; sampler_clock = 333;
>> -break;
>> -case 4:
>> -render_clock = 400; sampler_clock = 444;
>> -break;
>> -case 5:
>> -render_clock = 500; sampler_clock = 533;
>> +while ((dent = readdir(d)) != NULL) {
>> +const char *endswith = "-busy";
>> +const unsigned int endlen = strlen(endswith);
>> +struct engine *engine =
>> +engine_ptr(engines, engines->num_engines);
>> +char buf[256];
>> +
>> +if (dent->d_type != DT_REG)
>> +continue;
>> +
>> +if (strlen(dent->d_name) >= sizeof(buf)) {
>> +ret = ENAMETOOLONG;
>> break;
>> }
>>
>> -print_clock("render", render_clock);
>> -printf(" ");
>> -print_clock("sampler", sampler_clock);
>> -} else if (IS_945(devid) && IS_MOBILE(devid)) {
>> -int render_clock = -1, display_clock = -1;
>> +strcpy(buf, dent->d_name);
>>
>> -pci_device_cfg_read_u16(pci_dev, &gcfgc, I915_GCFGC);
>> +/* xxxN-busy */
>> +if (strlen(buf) < (endlen + 4))
>> +continue;
>> +if (strcmp(&buf[strlen(buf) - endlen], endswith))
>> +continue;
>>
>> -switch (gcfgc & 0x7) {
>> -case 0:
>> -render_clock = 166;
>> -break;
>> -case 1:
>> -render_clock = 200;
>> -break;
>> -case 3:
>> -render_clock = 250;
>> -break;
>> -case 5:
>> -render_clock = 400;
>> +memset(engine, 0, sizeof(*engine));
>> +
>> +buf[strlen(buf) - endlen] = 0;
>> +engine->name = strdup(buf);
>> +if (!engine->name) {
>> +ret = errno;
>> break;
>> }
>>
>> -switch (gcfgc & 0x70) {
>> -case 0:
>> -display_clock = 200;
>> -break;
>> -case 4:
>> -display_clock = 320;
>> +engine->busy.config = get_pmu_config(dirfd(d), engine->name,
>> + "busy");
>> +if (engine->busy.config == -1) {
>> +ret = ENOENT;
>> break;
>> }
>> -if (gcfgc & (1 << 7))
>> - display_clock = 133;
>>
>> -print_clock("render", render_clock);
>> -printf(" ");
>> -print_clock("display", display_clock);
>> -} else if (IS_915(devid) && IS_MOBILE(devid)) {
>> -int render_clock = -1, display_clock = -1;
>> +engine->class = (engine->busy.config &
>> + (__I915_PMU_OTHER(0) - 1)) >>
>> +I915_PMU_CLASS_SHIFT;
>>
>> -pci_device_cfg_read_u16(pci_dev, &gcfgc, I915_GCFGC);
>> +engine->instance = (engine->busy.config >>
>> + I915_PMU_SAMPLE_BITS) &
>> + ((1 << I915_PMU_SAMPLE_INSTANCE_BITS) - 1);
>>
>> -switch (gcfgc & 0x7) {
>> -case 0:
>> -render_clock = 160;
>> -break;
>> -case 1:
>> -render_clock = 190;
>> -break;
>> -case 4:
>> -render_clock = 333;
>> +ret = snprintf(buf, sizeof(buf), "%s/%u",
>> + class_display_name(engine->class),
>> + engine->instance);
>> +if (ret < 0 || ret == sizeof(buf)) {
>> +ret = ENOBUFS;
>> break;
>> }
>> -if (gcfgc & (1 << 13))
>> - render_clock = 133;
>> +ret = 0;
>>
>> -switch (gcfgc & 0x70) {
>> -case 0:
>> -display_clock = 190;
>> +engine->display_name = strdup(buf);
>> +if (!engine->display_name) {
>> +ret = errno;
>> break;
>> -case 4:
>> -display_clock = 333;
>> +}
>> +
>> +engines->num_engines++;
>> +engines = realloc(engines, sizeof(struct engines) +
>> + engines->num_engines * sizeof(struct engine));
>> +if (!engines) {
>> +ret = errno;
>> break;
>> }
>> -if (gcfgc & (1 << 7))
>> - display_clock = 133;
>> +}
>> +
>> +if (ret) {
>> +free(engines);
>> +errno = ret;
>>
>> -print_clock("render", render_clock);
>> -printf(" ");
>> -print_clock("display", display_clock);
>> +return NULL;
>> }
>>
>> +qsort(engine_ptr(engines, 0), engines->num_engines,
>> + sizeof(struct engine), engine_cmp);
>> +
>> +engines->root = d;
>>
>> -printf("\n");
>> -return -1;
>> +return engines;
>> }
>>
>> -#define STATS_LEN (20)
>> -#define PERCENTAGE_BAR_END(79 - STATS_LEN)
>> +static int
>> +filename_to_buf(const char *filename, char *buf, unsigned int bufsize)
>> +{
>> +int fd, err;
>> +ssize_t ret;
>>
>> -static void
>> -print_percentage_bar(float percent, int cur_line_len)
>> +fd = open(filename, O_RDONLY);
>> +if (fd < 0)
>> +return -1;
>> +
>> +ret = read(fd, buf, bufsize - 1);
>> +err = errno;
>> +close(fd);
>> +if (ret < 1) {
>> +errno = ret < 0 ? err : ENOMSG;
>> +
>> +return -1;
>> +}
>> +
>> +if (ret > 1 && buf[ret - 1] == '\n')
>> +buf[ret - 1] = '\0';
>> +else
>> +buf[ret] = '\0';
>> +
>> +return 0;
>> +}
>> +
>> +static uint64_t filename_to_u64(const char *filename, int base)
>> {
>> -int bar_avail_len = (PERCENTAGE_BAR_END - cur_line_len - 1) * 8;
>> -int bar_len = bar_avail_len * (percent + .5) / 100.0;
>> -int i;
>> +char buf[64], *b;
>>
>> -for (i = bar_len; i >= 8; i -= 8) {
>> -printf("%s", bars[8]);
>> -cur_line_len++;
>> +if (filename_to_buf(filename, buf, sizeof(buf)))
>> +return 0;
>> +
>> +/*
>> + * Handle both single integer and key=value formats by skipping
>> + * leading non-digits.
>> + */
>> +b = buf;
>> +while (*b && !isdigit(*b))
>> +b++;
>> +
>> +return strtoull(b, NULL, base);
>> +}
>> +
>> +static double filename_to_double(const char *filename)
>> +{
>> +char *oldlocale;
>> +char buf[80];
>> +double v;
>> +
>> +if (filename_to_buf(filename, buf, sizeof(buf)))
>> +return 0;
>> +
>> +oldlocale = setlocale(LC_ALL, "C");
>> +v = strtod(buf, NULL);
>> +setlocale(LC_ALL, oldlocale);
>> +
>> +return v;
>> +}
>> +
>> +#define RAPL_ROOT "/sys/devices/power/"
>> +#define RAPL_EVENT "/sys/devices/power/events/"
>> +
>> +static uint64_t rapl_type_id(void)
>> +{
>> +return filename_to_u64(RAPL_ROOT "type", 10);
>> +}
>> +
>> +static uint64_t rapl_gpu_power(void)
>> +{
>> +return filename_to_u64(RAPL_EVENT "energy-gpu", 0);
>> +}
>> +
>> +static double rapl_gpu_power_scale(void)
>> +{
>> +return filename_to_double(RAPL_EVENT "energy-gpu.scale");
>> +}
>> +
>> +static const char *rapl_gpu_power_unit(void)
>> +{
>> +char buf[32];
>> +
>> +if (filename_to_buf(RAPL_EVENT "energy-gpu.unit",
>> + buf, sizeof(buf)) == 0)
>> +if (!strcmp(buf, "Joules"))
>> +return strdup("Watts");
>> +else
>> +return strdup(buf);
>> +else
>> +return NULL;
>> +}
>> +
>> +#define IMC_ROOT "/sys/devices/uncore_imc/"
>> +#define IMC_EVENT "/sys/devices/uncore_imc/events/"
>> +
>> +static uint64_t imc_type_id(void)
>> +{
>> +return filename_to_u64(IMC_ROOT "type", 10);
>> +}
>> +
>> +static uint64_t imc_data_reads(void)
>> +{
>> +return filename_to_u64(IMC_EVENT "data_reads", 0);
>> +}
>> +
>> +static double imc_data_reads_scale(void)
>> +{
>> +return filename_to_double(IMC_EVENT "data_reads.scale");
>> +}
>> +
>> +static const char *imc_data_reads_unit(void)
>> +{
>> +char buf[32];
>> +
>> +if (filename_to_buf(IMC_EVENT "data_reads.unit", buf, sizeof(buf)) == 0)
>> +return strdup(buf);
>> +else
>> +return NULL;
>> +}
>> +
>> +static uint64_t imc_data_writes(void)
>> +{
>> +return filename_to_u64(IMC_EVENT "data_writes", 0);
>> +}
>> +
>> +static double imc_data_writes_scale(void)
>> +{
>> +return filename_to_double(IMC_EVENT "data_writes.scale");
>> +}
>> +
>> +static const char *imc_data_writes_unit(void)
>> +{
>> +char buf[32];
>> +
>> +if (filename_to_buf(IMC_EVENT "data_writes.unit",
>> + buf, sizeof(buf)) == 0)
>> +return strdup(buf);
>> +else
>> +return NULL;
>> +}
>> +
>> +#define _open_pmu(cnt, pmu, fd) \
>> +({ \
>> +int fd__; \
>> +\
>> +fd__ = perf_i915_open_group((pmu)->config, (fd)); \
>> +if (fd__ >= 0) { \
>> +if ((fd) == -1) \
>> +(fd) = fd__; \
>> +(pmu)->present = true; \
>> +(pmu)->idx = (cnt)++; \
>> +} \
>> +\
>> +fd__; \
>> +})
>> +
>> +#define _open_imc(cnt, pmu, fd) \
>> +({ \
>> +int fd__; \
>> +\
>> +fd__ = igt_perf_open_group(imc_type_id(), (pmu)->config, (fd)); \
>> +if (fd__ >= 0) { \
>> +if ((fd) == -1) \
>> +(fd) = fd__; \
>> +(pmu)->present = true; \
>> +(pmu)->idx = (cnt)++; \
>> +} \
>> +\
>> +fd__; \
>> +})
>> +
>> +static int pmu_init(struct engines *engines)
>> +{
>> +unsigned int i;
>> +int fd;
>> +
>> +engines->fd = -1;
>> +engines->num_counters = 0;
>> +
>> +engines->irq.config = I915_PMU_INTERRUPTS;
>> +fd = _open_pmu(engines->num_counters, &engines->irq, engines->fd);
>> +if (fd < 0)
>> +return -1;
>> +
>> +engines->freq_req.config = I915_PMU_REQUESTED_FREQUENCY;
>> +_open_pmu(engines->num_counters, &engines->freq_req, engines->fd);
>> +
>> +engines->freq_act.config = I915_PMU_ACTUAL_FREQUENCY;
>> +_open_pmu(engines->num_counters, &engines->freq_act, engines->fd);
>> +
>> +engines->rc6.config = I915_PMU_RC6_RESIDENCY;
>> +_open_pmu(engines->num_counters, &engines->rc6, engines->fd);
>> +
>> +for (i = 0; i < engines->num_engines; i++) {
>> +struct engine *engine = engine_ptr(engines, i);
>> +struct {
>> +struct pmu_counter *pmu;
>> +const char *counter;
>> +} *cnt, counters[] = {
>> +{ .pmu = &engine->busy, .counter = "busy" },
>> +{ .pmu = &engine->wait, .counter = "wait" },
>> +{ .pmu = &engine->sema, .counter = "sema" },
>> +{ .pmu = NULL, .counter = NULL },
>> +};
>> +
>> +for (cnt = counters; cnt->pmu; cnt++) {
>> +if (!cnt->pmu->config)
>> +cnt->pmu->config =
>> +get_pmu_config(dirfd(engines->root),
>> + engine->name,
>> + cnt->counter);
>> +fd = _open_pmu(engines->num_counters, cnt->pmu,
>> + engines->fd);
>> +if (fd >= 0)
>> +engine->num_counters++;
>> +}
>> }
>> -if (i) {
>> -printf("%s", bars[i]);
>> -cur_line_len++;
>> +
>> +engines->rapl_fd = -1;
>> +if (rapl_type_id()) {
>> +engines->rapl_scale = rapl_gpu_power_scale();
>> +engines->rapl_unit = rapl_gpu_power_unit();
>> +if (!engines->rapl_unit)
>> +return -1;
>> +
>> +engines->rapl.config = rapl_gpu_power();
>> +if (!engines->rapl.config)
>> +return -1;
>> +
>> +engines->rapl_fd = igt_perf_open(rapl_type_id(),
>> + engines->rapl.config);
>> +if (engines->rapl_fd < 0)
>> +return -1;
>> +
>> +engines->rapl.present = true;
>> }
>>
>> -/* NB: We can't use a field width with utf8 so we manually
>> -* guarantee a field with of 45 chars for any bar. */
>> -printf("%*s", PERCENTAGE_BAR_END - cur_line_len, "");
>> -}
>> +engines->imc_fd = -1;
>> +if (imc_type_id()) {
>> +unsigned int num = 0;
>>
>> -struct ring {
>> -const char *name;
>> -uint32_t mmio;
>> -int head, tail, size;
>> -uint64_t full;
>> -int idle;
>> -};
>> +engines->imc_reads_scale = imc_data_reads_scale();
>> +engines->imc_writes_scale = imc_data_writes_scale();
>> +
>> +engines->imc_reads_unit = imc_data_reads_unit();
>> +if (!engines->imc_reads_unit)
>> +return -1;
>> +
>> +engines->imc_writes_unit = imc_data_writes_unit();
>> +if (!engines->imc_writes_unit)
>> +return -1;
>> +
>> +engines->imc_reads.config = imc_data_reads();
>> +if (!engines->imc_reads.config)
>> +return -1;
>> +
>> +engines->imc_writes.config = imc_data_writes();
>> +if (!engines->imc_writes.config)
>> +return -1;
>> +
>> +fd = _open_imc(num, &engines->imc_reads, engines->imc_fd);
>> +if (fd < 0)
>> +return -1;
>> +fd = _open_imc(num, &engines->imc_writes, engines->imc_fd);
>> +if (fd < 0)
>> +return -1;
>> +
>> +engines->imc_reads.present = true;
>> +engines->imc_writes.present = true;
>> +}
>> +
>> +return 0;
>> +}
>>
>> -static uint32_t ring_read(struct ring *ring, uint32_t reg)
>> +static uint64_t pmu_read_multi(int fd, unsigned int num, uint64_t *val)
>> {
>> -return INREG(ring->mmio + reg);
>> +uint64_t buf[2 + num];
>> +unsigned int i;
>> +ssize_t len;
>> +
>> +memset(buf, 0, sizeof(buf));
>> +
>> +len = read(fd, buf, sizeof(buf));
>> +assert(len == sizeof(buf));
>> +
>> +for (i = 0; i < num; i++)
>> +val[i] = buf[2 + i];
>> +
>> +return buf[1];
>> }
>>
>> -static void ring_init(struct ring *ring)
>> +static double __pmu_calc(struct pmu_pair *p, double d, double t, double s)
>> {
>> -ring->size = (((ring_read(ring, RING_LEN) & RING_NR_PAGES) >> 12) + 1) * 4096;
>> +double v;
>> +
>> +v = p->cur - p->prev;
>> +v /= d;
>> +v /= t;
>> +v *= s;
>> +
>> +if (s == 100.0 && v > 100.0)
>> +v = 100.0;
>> +
>> +return v;
>> }
>>
>> -static void ring_reset(struct ring *ring)
>> +static void fill_str(char *buf, unsigned int bufsz, char c, unsigned int num)
>> {
>> -ring->idle = ring->full = 0;
>> +unsigned int i;
>> +
>> +for (i = 0; i < num && i < (bufsz - 1); i++)
>> +*buf++ = c;
>> +
>> +*buf = 0;
>> }
>>
>> -static void ring_sample(struct ring *ring)
>> +static void pmu_calc(struct pmu_counter *cnt,
>> + char *buf, unsigned int bufsz,
>> + unsigned int width, unsigned width_dec,
>> + double d, double t, double s)
>> {
>> -int full;
>> +double val;
>> +int len;
>> +
>> +assert(bufsz >= (width + width_dec + 1));
>> +
>> +if (!cnt->present) {
>> +fill_str(buf, bufsz, '-', width + width_dec);
>> +return;
>> +}
>>
>> -if (!ring->size)
>> +val = __pmu_calc(&cnt->val, d, t, s);
>> +
>> +len = snprintf(buf, bufsz, "%*.*f", width + width_dec, width_dec, val);
>> +if (len < 0 || len == bufsz) {
>> +fill_str(buf, bufsz, 'X', width + width_dec);
>> return;
>> +}
>> +}
>> +
>> +static uint64_t __pmu_read_single(int fd, uint64_t *ts)
>> +{
>> +uint64_t data[2] = { };
>> +ssize_t len;
>>
>> -ring->head = ring_read(ring, RING_HEAD) & HEAD_ADDR;
>> -ring->tail = ring_read(ring, RING_TAIL) & TAIL_ADDR;
>> +len = read(fd, data, sizeof(data));
>> +assert(len == sizeof(data));
>>
>> -if (ring->tail == ring->head)
>> -ring->idle++;
>> +if (ts)
>> +*ts = data[1];
>>
>> -full = ring->tail - ring->head;
>> -if (full < 0)
>> -full += ring->size;
>> -ring->full += full;
>> +return data[0];
>> }
>>
>> -static void ring_print_header(FILE *out, struct ring *ring)
>> +static uint64_t pmu_read_single(int fd)
>> {
>> - fprintf(out, "%.6s%%\tops\t",
>> - ring->name
>> - );
>> +return __pmu_read_single(fd, NULL);
>> }
>>
>> -static void ring_print(struct ring *ring, unsigned long samples_per_sec)
>> +static void __update_sample(struct pmu_counter *counter, uint64_t val)
>> {
>> -int percent_busy, len;
>> +counter->val.prev = counter->val.cur;
>> +counter->val.cur = val;
>> +}
>>
>> -if (!ring->size)
>> -return;
>> +static void update_sample(struct pmu_counter *counter, uint64_t *val)
>> +{
>> +if (counter->present)
>> +__update_sample(counter, val[counter->idx]);
>> +}
>> +
>> +static void pmu_sample(struct engines *engines)
>> +{
>> +const int num_val = engines->num_counters;
>> +uint64_t val[2 + num_val];
>> +unsigned int i;
>> +
>> +engines->ts.prev = engines->ts.cur;
>> +
>> +if (engines->rapl_fd >= 0)
>> +__update_sample(&engines->rapl,
>> +pmu_read_single(engines->rapl_fd));
>> +
>> +if (engines->imc_fd >= 0) {
>> +pmu_read_multi(engines->imc_fd, 2, val);
>> +update_sample(&engines->imc_reads, val);
>> +update_sample(&engines->imc_writes, val);
>> +}
>>
>> -percent_busy = 100 - 100 * ring->idle / samples_per_sec;
>> +engines->ts.cur = pmu_read_multi(engines->fd, num_val, val);
>>
>> -len = printf("%25s busy: %3d%%: ", ring->name, percent_busy);
>> -print_percentage_bar (percent_busy, len);
>> -printf("%24s space: %d/%d\n",
>> - ring->name,
>> - (int)(ring->full / samples_per_sec),
>> - ring->size);
>> +update_sample(&engines->freq_req, val);
>> +update_sample(&engines->freq_act, val);
>> +update_sample(&engines->irq, val);
>> +update_sample(&engines->rc6, val);
>> +
>> +for (i = 0; i < engines->num_engines; i++) {
>> +struct engine *engine = engine_ptr(engines, i);
>> +
>> +update_sample(&engine->busy, val);
>> +update_sample(&engine->sema, val);
>> +update_sample(&engine->wait, val);
>> +}
>> }
>>
>> -static void ring_log(struct ring *ring, unsigned long samples_per_sec,
>> -FILE *output)
>> +static const char *bars[] = { " ", "▏", "▎", "▍", "▌", "▋", "▊", "▉", "█" };
>> +
>> +static void
>> +print_percentage_bar(double percent, int max_len)
>> {
>> -if (ring->size)
>> -fprintf(output, "%3d\t%d\t",
>> -(int)(100 - 100 * ring->idle / samples_per_sec),
>> -(int)(ring->full / samples_per_sec));
>> -else
>> -fprintf(output, "-1\t-1\t");
>> +int bar_len = percent * (8 * (max_len - 2)) / 100.0;
>> +int i;
>> +
>> +putchar('|');
>> +
>> +for (i = bar_len; i >= 8; i -= 8)
>> +printf("%s", bars[8]);
>> +if (i)
>> +printf("%s", bars[i]);
>> +
>> +for (i = 0; i < (max_len - 2 - (bar_len + 7) / 8); i++)
>> +putchar(' ');
>> +
>> +putchar('|');
>> }
>>
>> +#define DEFAULT_PERIOD_MS (1000)
>> +
>> static void
>> usage(const char *appname)
>> {
>> printf("intel_gpu_top - Display a top-like summary of Intel GPU usage\n"
>> -"\n"
>> -"usage: %s [parameters]\n"
>> -"\n"
>> -"The following parameters apply:\n"
>> -"[-s <samples>] samples per seconds (default %d)\n"
>> -"[-e <command>] command to profile\n"
>> -"[-o <file>] output statistics to file. If file is '-',"
>> -" run in batch mode and output statistics to stdio only \n"
>> -"[-h] show this help screen\n"
>> -"\n",
>> -appname,
>> -SAMPLES_PER_SEC
>> - );
>> -return;
>> +"\n"
>> +"Usage: %s [parameters]\n"
>> +"\n"
>> +"\tThe following parameters are optional:\n\n"
>> +"\t[-s <ms>] Refresh period in milliseconds (default %ums).\n"
>> +"\t[-h] Show this help text.\n"
>> +"\n",
>> +appname, DEFAULT_PERIOD_MS);
>> }
>>
>> int main(int argc, char **argv)
>> {
>> -uint32_t devid;
>> -struct pci_device *pci_dev;
>> -struct ring render_ring = {
>> -.name = "render",
>> -.mmio = 0x2030,
>> -}, bsd_ring = {
>> -.name = "bitstream",
>> -.mmio = 0x4030,
>> -}, bsd6_ring = {
>> -.name = "bitstream",
>> -.mmio = 0x12030,
>> -}, blt_ring = {
>> -.name = "blitter",
>> -.mmio = 0x22030,
>> -};
>> -int i, ch;
>> -int samples_per_sec = SAMPLES_PER_SEC;
>> -FILE *output = NULL;
>> -double elapsed_time=0;
>> -int print_headers=1;
>> -pid_t child_pid=-1;
>> -int child_stat;
>> -char *cmd=NULL;
>> -int interactive=1;
>> -
>> -/* Parse options? */
>> -while ((ch = getopt(argc, argv, "s:o:e:h")) != -1) {
>> +unsigned int period_us = DEFAULT_PERIOD_MS * 1000;
>> +int con_w = -1, con_h = -1;
>> +struct engines *engines;
>> +unsigned int i;
>> +int ret, ch;
>> +
>> +/* Parse options */
>> +while ((ch = getopt(argc, argv, "s:h")) != -1) {
>> switch (ch) {
>> -case 'e': cmd = strdup(optarg);
>> -break;
>> -case 's': samples_per_sec = atoi(optarg);
>> -if (samples_per_sec < 100) {
>> -fprintf(stderr, "Error: samples per second must be >= 100\n");
>> -exit(1);
>> -}
>> -break;
>> -case 'o':
>> -if (!strcmp(optarg, "-")) {
>> -/* Running in non-interactive mode */
>> -interactive = 0;
>> -output = stdout;
>> -}
>> -else
>> -output = fopen(optarg, "w");
>> -if (!output)
>> -{
>> -perror("fopen");
>> -exit(1);
>> -}
>> +case 's':
>> +period_us = atoi(optarg) * 1000;
>> break;
>> case 'h':
>> usage(argv[0]);
>> exit(0);
>> -break;
>> default:
>> -fprintf(stderr, "Invalid flag %c!\n", (char)optopt);
>> +fprintf(stderr, "Invalid option %c!\n", (char)optopt);
>> usage(argv[0]);
>> exit(1);
>> -break;
>> }
>> }
>>
>> -pci_dev = intel_get_pci_device();
>> -devid = pci_dev->device_id;
>> -intel_mmio_use_pci_bar(pci_dev);
>> -init_instdone_definitions(devid);
>> -
>> -/* Do we have a command to run? */
>> -if (cmd != NULL) {
>> -if (output) {
>> -fprintf(output, "# Profiling: %s\n", cmd);
>> -fflush(output);
>> -}
>> -child_pid = fork();
>> -if (child_pid < 0) {
>> -perror("fork");
>> -exit(1);
>> -}
>> -else if (child_pid == 0) {
>> -int res;
>> -res = system(cmd);
>> -if (res < 0)
>> -perror("running command");
>> -if (output) {
>> -fflush(output);
>> -fprintf(output, "# %s exited with status %d\n", cmd, res);
>> -fflush(output);
>> -}
>> -free(cmd);
>> -exit(0);
>> -} else {
>> -free(cmd);
>> -}
>> +engines = discover_engines();
>> +if (!engines) {
>> +fprintf(stderr,
>> +"Failed to detect engines! (%s)\n(Kernel 4.16 or newer is required for i915 PMU support.)\n",
>> +strerror(errno));
>> +return 1;
>> }
>>
>> -for (i = 0; i < num_instdone_bits; i++) {
>> -top_bits[i].bit = &instdone_bits[i];
>> -top_bits[i].count = 0;
>> -top_bits_sorted[i] = &top_bits[i];
>> +ret = pmu_init(engines);
>> +if (ret) {
>> +fprintf(stderr,
>> +"Failed to initialize PMU! (%s)\n", strerror(errno));
>> +return 1;
>> }
>>
>> -/* Grab access to the registers */
>> -intel_register_access_init(pci_dev, 0, -1);
>> +pmu_sample(engines);
>>
>> -ring_init(&render_ring);
>> -if (IS_GEN4(devid) || IS_GEN5(devid))
>> -ring_init(&bsd_ring);
>> -if (IS_GEN6(devid) || IS_GEN7(devid)) {
>> -ring_init(&bsd6_ring);
>> -ring_init(&blt_ring);
>> -}
>> +for (;;) {
>> +double t;
>> +#define BUFSZ 16
>> +char freq[BUFSZ];
>> +char fact[BUFSZ];
>> +char irq[BUFSZ];
>> +char rc6[BUFSZ];
>> +char power[BUFSZ];
>> +char reads[BUFSZ];
>> +char writes[BUFSZ];
>> +struct winsize ws;
>> +int lines = 0;
>>
>> -/* Initialize GPU stats */
>> -if (HAS_STATS_REGS(devid)) {
>> -for (i = 0; i < STATS_COUNT; i++) {
>> -uint32_t stats_high, stats_low, stats_high_2;
>> +/* Update terminal size. */
>> +if (ioctl(0, TIOCGWINSZ, &ws) != -1) {
>> +con_w = ws.ws_col;
>> +con_h = ws.ws_row;
>> +}
>>
>> -do {
>> -stats_high = INREG(stats_regs[i] + 4);
>> -stats_low = INREG(stats_regs[i]);
>> -stats_high_2 = INREG(stats_regs[i] + 4);
>> -} while (stats_high != stats_high_2);
>> +pmu_sample(engines);
>> +t = (double)(engines->ts.cur - engines->ts.prev) / 1e9;
>>
>> -last_stats[i] = (uint64_t)stats_high << 32 |
>> -stats_low;
>> -}
>> -}
>> +printf("\033[H\033[J");
>>
>> -for (;;) {
>> -int j;
>> -unsigned long long t1, ti, tf, t2;
>> -unsigned long long def_sleep = 1000000 / samples_per_sec;
>> -unsigned long long last_samples_per_sec = samples_per_sec;
>> -unsigned short int max_lines;
>> -struct winsize ws;
>> -char clear_screen[] = {0x1b, '[', 'H',
>> - 0x1b, '[', 'J',
>> - 0x0};
>> -int percent;
>> -int len;
>> -
>> -t1 = gettime();
>> -
>> -ring_reset(&render_ring);
>> -ring_reset(&bsd_ring);
>> -ring_reset(&bsd6_ring);
>> -ring_reset(&blt_ring);
>> -
>> -for (i = 0; i < samples_per_sec; i++) {
>> -long long interval;
>> -ti = gettime();
>> -if (IS_965(devid)) {
>> -instdone = INREG(INSTDONE_I965);
>> -instdone1 = INREG(INSTDONE_1);
>> -} else
>> -instdone = INREG(INSTDONE);
>> -
>> -for (j = 0; j < num_instdone_bits; j++)
>> -update_idle_bit(&top_bits[j]);
>> -
>> -ring_sample(&render_ring);
>> -ring_sample(&bsd_ring);
>> -ring_sample(&bsd6_ring);
>> -ring_sample(&blt_ring);
>> -
>> -tf = gettime();
>> -if (tf - t1 >= 1000000) {
>> -/* We are out of sync, bail out */
>> -last_samples_per_sec = i+1;
>> -break;
>> -}
>> -interval = def_sleep - (tf - ti);
>> -if (interval > 0)
>> -usleep(interval);
>> -}
>> +pmu_calc(&engines->freq_req, freq, BUFSZ, 4, 0, 1.0, t, 1);
>> +pmu_calc(&engines->freq_act, fact, BUFSZ, 4, 0, 1.0, t, 1);
>> +pmu_calc(&engines->irq, irq, BUFSZ, 8, 0, 1.0, t, 1);
>> +pmu_calc(&engines->rc6, rc6, BUFSZ, 3, 0, 1e9, t, 100);
>> +pmu_calc(&engines->rapl, power, BUFSZ, 4, 2, 1.0, t,
>> + engines->rapl_scale);
>> +pmu_calc(&engines->imc_reads, reads, BUFSZ, 6, 0, 1.0, t,
>> + engines->imc_reads_scale);
>> +pmu_calc(&engines->imc_writes, writes, BUFSZ, 6, 0, 1.0, t,
>> + engines->imc_writes_scale);
>>
>> -if (HAS_STATS_REGS(devid)) {
>> -for (i = 0; i < STATS_COUNT; i++) {
>> -uint32_t stats_high, stats_low, stats_high_2;
>> +if (lines++ < con_h)
>> +printf("intel-gpu-top - %s/%s MHz; %s%% RC6; %s %s; %s irqs/s\n",
>> + fact, freq, rc6, power, engines->rapl_unit, irq);
>>
>> -do {
>> -stats_high = INREG(stats_regs[i] + 4);
>> -stats_low = INREG(stats_regs[i]);
>> -stats_high_2 = INREG(stats_regs[i] + 4);
>> -} while (stats_high != stats_high_2);
>> +if (lines++ < con_h)
>> +printf("\n");
>>
>> -stats[i] = (uint64_t)stats_high << 32 |
>> -stats_low;
>> -}
>> -}
>> +if (engines->imc_fd) {
>> +if (lines++ < con_h)
>> +printf(" IMC reads: %s %s/s\n",
>> + reads, engines->imc_reads_unit);
>> +
>> +if (lines++ < con_h)
>> +printf(" IMC writes: %s %s/s\n",
>> + writes, engines->imc_writes_unit);
>>
>> -qsort(top_bits_sorted, num_instdone_bits,
>> - sizeof(struct top_bit *), top_bits_sort);
>> -
>> -/* Limit the number of lines printed to the terminal height so the
>> - * most important info (at the top) will stay on screen. */
>> -max_lines = -1;
>> -if (ioctl(0, TIOCGWINSZ, &ws) != -1)
>> -max_lines = ws.ws_row - 6; /* exclude header lines */
>> -if (max_lines >= num_instdone_bits)
>> -max_lines = num_instdone_bits;
>> -
>> -t2 = gettime();
>> -elapsed_time += (t2 - t1) / 1000000.0;
>> -
>> -if (interactive) {
>> -printf("%s", clear_screen);
>> -print_clock_info(pci_dev);
>> -
>> -ring_print(&render_ring, last_samples_per_sec);
>> -ring_print(&bsd_ring, last_samples_per_sec);
>> -ring_print(&bsd6_ring, last_samples_per_sec);
>> -ring_print(&blt_ring, last_samples_per_sec);
>> -
>> -printf("\n%30s %s\n", "task", "percent busy");
>> -for (i = 0; i < max_lines; i++) {
>> -if (top_bits_sorted[i]->count > 0) {
>> -percent = (top_bits_sorted[i]->count * 100) /
>> -last_samples_per_sec;
>> -len = printf("%30s: %3d%%: ",
>> - top_bits_sorted[i]->bit->name,
>> - percent);
>> -print_percentage_bar (percent, len);
>> -} else {
>> -printf("%*s", PERCENTAGE_BAR_END, "");
>> -}
>> -
>> -if (i < STATS_COUNT && HAS_STATS_REGS(devid)) {
>> -printf("%13s: %llu (%lld/sec)",
>> - stats_reg_names[i],
>> - (long long)stats[i],
>> - (long long)(stats[i] - last_stats[i]));
>> -last_stats[i] = stats[i];
>> -} else {
>> -if (!top_bits_sorted[i]->count)
>> -break;
>> -}
>> +if (++lines < con_h)
>> printf("\n");
>> -}
>> }
>> -if (output) {
>> -/* Print headers for columns at first run */
>> -if (print_headers) {
>> -fprintf(output, "# time\t");
>> -ring_print_header(output, &render_ring);
>> -ring_print_header(output, &bsd_ring);
>> -ring_print_header(output, &bsd6_ring);
>> -ring_print_header(output, &blt_ring);
>> -for (i = 0; i < MAX_NUM_TOP_BITS; i++) {
>> -if (i < STATS_COUNT && HAS_STATS_REGS(devid)) {
>> -fprintf(output, "%.6s\t",
>> - stats_reg_names[i]
>> - );
>> -}
>> -if (!top_bits[i].count)
>> -continue;
>> -}
>> -fprintf(output, "\n");
>> -print_headers = 0;
>> -}
>>
>> -/* Print statistics */
>> -fprintf(output, "%.2f\t", elapsed_time);
>> -ring_log(&render_ring, last_samples_per_sec, output);
>> -ring_log(&bsd_ring, last_samples_per_sec, output);
>> -ring_log(&bsd6_ring, last_samples_per_sec, output);
>> -ring_log(&blt_ring, last_samples_per_sec, output);
>> -
>> -for (i = 0; i < MAX_NUM_TOP_BITS; i++) {
>> -if (i < STATS_COUNT && HAS_STATS_REGS(devid)) {
>> -fprintf(output, "%"PRIu64"\t",
>> - stats[i] - last_stats[i]);
>> -last_stats[i] = stats[i];
>> -}
>> -if (!top_bits[i].count)
>> -continue;
>> -}
>> -fprintf(output, "\n");
>> -fflush(output);
>> -}
>> +for (i = 0; i < engines->num_engines; i++) {
>> +struct engine *engine = engine_ptr(engines, i);
>>
>> -for (i = 0; i < num_instdone_bits; i++) {
>> -top_bits_sorted[i]->count = 0;
>> +if (engine->num_counters && lines < con_h) {
>> +const char *a = " ENGINE BUSY ";
>> +const char *b = " MI_SEMA MI_WAIT";
>>
>> -if (i < STATS_COUNT)
>> -last_stats[i] = stats[i];
>> +printf("\033[7m%s%*s%s\033[0m\n",
>> + a,
>> + (int)(con_w - 1 - strlen(a) - strlen(b)),
>> + " ", b);
>> +lines++;
>> +break;
>> +}
>> }
>>
>> -/* Check if child has gone */
>> -if (child_pid > 0) {
>> -int res;
>> -if ((res = waitpid(child_pid, &child_stat, WNOHANG)) == -1) {
>> -perror("waitpid");
>> -exit(1);
>> -}
>> -if (res == 0)
>> +for (i = 0; i < engines->num_engines && lines < con_h; i++) {
>> +struct engine *engine = engine_ptr(engines, i);
>> +unsigned int max_w = con_w - 1;
>> +unsigned int len;
>> +char sema[BUFSZ];
>> +char wait[BUFSZ];
>> +char busy[BUFSZ];
>> +char buf[128];
>> +double val;
>> +
>> +if (!engine->num_counters)
>> continue;
>> -if (WIFEXITED(child_stat))
>> -break;
>> +
>> +pmu_calc(&engine->sema, sema, BUFSZ, 3, 0, 1e9, t, 100);
>> +pmu_calc(&engine->wait, wait, BUFSZ, 3, 0, 1e9, t, 100);
>> +len = snprintf(buf, sizeof(buf), " %s%% %s%%",
>> + sema, wait);
>> +
>> +pmu_calc(&engine->busy, busy, BUFSZ, 6, 2, 1e9, t,
>> + 100);
>> +len += printf("%16s %s%% ", engine->display_name, busy);
>> +
>> +val = __pmu_calc(&engine->busy.val, 1e9, t, 100);
>> +print_percentage_bar(val, max_w - len);
>> +
>> +printf("%s\n", buf);
>> +
>> +lines++;
>> }
>> -}
>>
>> -fclose(output);
>> +if (lines++ < con_h)
>> +printf("\n");
>> +
>> +usleep(period_us);
>> +}
>>
>> -intel_register_access_fini();
>> return 0;
>> }
>> diff --git a/tools/meson.build b/tools/meson.build
>> index bd2d313d5156..a918eeb0bef1 100644
>> --- a/tools/meson.build
>> +++ b/tools/meson.build
>> @@ -23,7 +23,6 @@ tools_progs = [
>> 'intel_gpu_frequency',
>> 'intel_firmware_decode',
>> 'intel_gpu_time',
>> -'intel_gpu_top',
>> 'intel_gtt',
>> 'intel_guc_logger',
>> 'intel_infoframes',
>> @@ -117,6 +116,11 @@ shared_library('intel_aubdump', 'aubdump.c',
>> name_prefix : '',
>> install : true)
>>
>> +executable('intel_gpu_top', 'intel_gpu_top.c',
>> + install : true,
>> + install_rpath : rpathdir,
>> + dependencies : tool_deps + [ lib_igt_perf ])
>> +
>> conf_data = configuration_data()
>> conf_data.set('prefix', prefix)
>> conf_data.set('exec_prefix', '${prefix}')
>>
>_______________________________________________
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>igt-dev at lists.freedesktop.org
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