From patchwork Wed May 11 12:18:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 12846144 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 03AF3C433EF for ; Wed, 11 May 2022 12:18:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 18D1F10E7BD; Wed, 11 May 2022 12:18:34 +0000 (UTC) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 14E0010E1D7; Wed, 11 May 2022 12:18:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652271513; x=1683807513; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=NsQbrIBNx8GUwK+KD84/W4vCbg2CItGvt0U8eu/kpdM=; b=fDjmYdT96Zus42LS3MKcS5R5tO2GXkEdFKVKLdxnsAkvtPa0FU93NkMq Khzo5Dx1PTL9QGPE5kMwjnm3jjXdNqfLR3krT2bh5RoY5+CzryieHYHhr jh4uxZ0SlMua3XGvWjA0JcR2KuZgfxWJ7opgU0NlITwzd7I4xBsVKEz70 Lkg624c/WkdCL+0Hx2z/c5ERDsFKliUGHonwOlQ0IARhmIIrA6pfzleRb /m4heea7+3QGeZmUUilr0eeYG0CUU4D41Pr6eBeYBk036bjBmlph9h492 tG5bHMzMtf9yy96494Ty25R3FCZUivGPCylzKAFw9cqsTszuyciHfkeEe Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10343"; a="249576709" X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="249576709" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:32 -0700 X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="520495107" Received: from mmlucey-mobl1.ger.corp.intel.com (HELO tursulin-mobl2.home) ([10.213.195.130]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:28 -0700 From: Tvrtko Ursulin To: igt-dev@lists.freedesktop.org Date: Wed, 11 May 2022 13:18:14 +0100 Message-Id: <20220511121821.1010974-2-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> References: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 1/8] lib: Extract igt_drm_clients from intel_gpu_top X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Code movement with some improvements to prepare for further work in making a vendor agnostic gputop tool possible. Signed-off-by: Tvrtko Ursulin --- lib/igt_drm_clients.c | 426 ++++++++++++++++++++++++++++++++++ lib/igt_drm_clients.h | 85 +++++++ lib/meson.build | 8 + tools/intel_gpu_top.c | 521 ++++++------------------------------------ tools/meson.build | 2 +- 5 files changed, 593 insertions(+), 449 deletions(-) create mode 100644 lib/igt_drm_clients.c create mode 100644 lib/igt_drm_clients.h diff --git a/lib/igt_drm_clients.c b/lib/igt_drm_clients.c new file mode 100644 index 000000000000..658c684b8fb0 --- /dev/null +++ b/lib/igt_drm_clients.c @@ -0,0 +1,426 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "igt_drm_clients.h" +#include "igt_drm_fdinfo.h" + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0])) +#endif + +/** + * igt_drm_clients_init: + * @private_data: private data to store in the struct + * + * Allocate and initialise the clients structure to be used with further API + * calls. + */ +struct igt_drm_clients *igt_drm_clients_init(void *private_data) +{ + struct igt_drm_clients *clients; + + clients = malloc(sizeof(*clients)); + if (!clients) + return NULL; + + memset(clients, 0, sizeof(*clients)); + + clients->private_data = private_data; + + return clients; +} + +static struct igt_drm_client * +igt_drm_clients_find(struct igt_drm_clients *clients, + enum igt_drm_client_status status, + unsigned int id) +{ + unsigned int start, num; + struct igt_drm_client *c; + + start = status == IGT_DRM_CLIENT_FREE ? clients->active_clients : 0; /* Free block at the end. */ + num = clients->num_clients - start; + + for (c = &clients->client[start]; num; c++, num--) { + if (status != c->status) + continue; + + if (status == IGT_DRM_CLIENT_FREE || c->id == id) + return c; + } + + return NULL; +} + +static void +igt_drm_client_update(struct igt_drm_client *c, unsigned int pid, char *name, + const struct drm_client_fdinfo *info) +{ + unsigned int i; + + /* Update client pid if it changed (fd sharing). */ + if (c->pid != pid) + c->pid = pid; + + /* Update client name if it changed (fd sharing). */ + if (strcmp(c->name, name)) { + char *p; + + strncpy(c->name, name, sizeof(c->name) - 1); + strncpy(c->print_name, name, sizeof(c->print_name) - 1); + + p = c->print_name; + while (*p) { + if (!isprint(*p)) + *p = '*'; + p++; + } + } + + c->last_runtime = 0; + c->total_runtime = 0; + + for (i = 0; i < c->clients->num_classes; i++) { + assert(i < ARRAY_SIZE(info->busy)); + + if (info->busy[i] < c->last[i]) + continue; /* It will catch up soon. */ + + c->total_runtime += info->busy[i]; + c->val[i] = info->busy[i] - c->last[i]; + c->last_runtime += c->val[i]; + c->last[i] = info->busy[i]; + } + + c->samples++; + c->status = IGT_DRM_CLIENT_ALIVE; +} + +static void +igt_drm_client_add(struct igt_drm_clients *clients, + const struct drm_client_fdinfo *info, + unsigned int pid, char *name) +{ + struct igt_drm_client *c; + + assert(!igt_drm_clients_find(clients, IGT_DRM_CLIENT_ALIVE, info->id)); + + c = igt_drm_clients_find(clients, IGT_DRM_CLIENT_FREE, 0); + if (!c) { + unsigned int idx = clients->num_clients; + + /* + * Grow the array a bit past the current requirement to avoid + * constant reallocation when clients are dynamically appearing + * and disappearing. + */ + clients->num_clients += (clients->num_clients + 2) / 2; + clients->client = realloc(clients->client, + clients->num_clients * sizeof(*c)); + assert(clients->client); + + c = &clients->client[idx]; + memset(c, 0, (clients->num_clients - idx) * sizeof(*c)); + } + + c->id = info->id; + c->clients = clients; + c->val = calloc(clients->num_classes, sizeof(c->val)); + c->last = calloc(clients->num_classes, sizeof(c->last)); + assert(c->val && c->last); + + igt_drm_client_update(c, pid, name, info); +} + +static +void igt_drm_client_free(struct igt_drm_client *c) +{ + free(c->val); + free(c->last); + memset(c, 0, sizeof(*c)); +} + +/** + * igt_drm_clients_sort: + * @clients: Previously initialised clients object + * @cmp: Client comparison callback + * + * Sort the clients array according to the passed in comparison callback which + * is compatible with the qsort(3) semantics. + * + * Caller has to ensure the callback is putting all active + * (IGT_DRM_CLIENT_ALIVE) clients in a single group at the head of the array + * before any other sorting criteria. + */ +struct igt_drm_clients * +igt_drm_clients_sort(struct igt_drm_clients *clients, + int (*cmp)(const void *, const void *)) +{ + unsigned int active, free; + struct igt_drm_client *c; + int tmp; + + if (!clients) + return clients; + + qsort(clients->client, clients->num_clients, sizeof(*clients->client), + cmp); + + /* Trim excessive array space. */ + active = 0; + igt_for_each_drm_client(clients, c, tmp) { + if (c->status != IGT_DRM_CLIENT_ALIVE) + break; /* Active clients are first in the array. */ + active++; + } + + clients->active_clients = active; + + /* Trim excess free space when clients are exiting. */ + free = clients->num_clients - active; + if (free > clients->num_clients / 2) { + active = clients->num_clients - free / 2; + if (active != clients->num_clients) { + clients->num_clients = active; + clients->client = realloc(clients->client, + clients->num_clients * + sizeof(*c)); + } + } + + return clients; +} + +/** + * igt_drm_clients_free: + * @clients: Previously initialised clients object + * + * Free all clients and all memory associated with the clients structure. + */ +void igt_drm_clients_free(struct igt_drm_clients *clients) +{ + struct igt_drm_client *c; + unsigned int tmp; + + igt_for_each_drm_client(clients, c, tmp) + igt_drm_client_free(c); + + free(clients->client); + free(clients); +} + +static DIR *opendirat(int at, const char *name) +{ + DIR *dir; + int fd; + + fd = openat(at, name, O_DIRECTORY); + if (fd < 0) + return NULL; + + dir = fdopendir(fd); + if (!dir) + close(fd); + + return dir; +} + +static size_t readat2buf(char *buf, const size_t sz, int at, const char *name) +{ + size_t count; + int fd; + + fd = openat(at, name, O_RDONLY); + if (fd < 0) + return 0; + + buf[sz - 1] = 0; + count = read(fd, buf, sz); + buf[count - 1] = 0; + close(fd); + + return count; +} + +static bool get_task_name(const char *buffer, char *out, unsigned long sz) +{ + char *s = index(buffer, '('); + char *e = rindex(buffer, ')'); + unsigned int len; + + if (!s || !e) + return false; + assert(e >= s); + + len = e - ++s; + if(!len || (len + 1) >= sz) + return false; + + strncpy(out, s, len); + out[len] = 0; + + return true; +} + +static bool is_drm_fd(int fd_dir, const char *name) +{ + struct stat stat; + int ret; + + ret = fstatat(fd_dir, name, &stat, 0); + + return ret == 0 && + (stat.st_mode & S_IFMT) == S_IFCHR && + major(stat.st_rdev) == 226; +} + +/** + * igt_drm_clients_scan: + * @clients: Previously initialised clients object + * @filter_client: Callback for client filtering + * + * Scan all open file descriptors from all processes in order to find all DRM + * clients and manage our internal list. + */ +struct igt_drm_clients * +igt_drm_clients_scan(struct igt_drm_clients *clients, + bool (*filter_client)(const struct igt_drm_clients *, + const struct drm_client_fdinfo *)) +{ + struct dirent *proc_dent; + struct igt_drm_client *c; + DIR *proc_dir; + int tmp; + + if (!clients) + return clients; + + /* + * First mark all alive clients as 'probe' so we can figure out which + * ones have existed since the previous scan. + */ + igt_for_each_drm_client(clients, c, tmp) { + assert(c->status != IGT_DRM_CLIENT_PROBE); + if (c->status == IGT_DRM_CLIENT_ALIVE) + c->status = IGT_DRM_CLIENT_PROBE; + else + break; /* Free block at the end of array. */ + } + + proc_dir = opendir("/proc"); + if (!proc_dir) + return clients; + + while ((proc_dent = readdir(proc_dir)) != NULL) { + int pid_dir = -1, fd_dir = -1; + struct dirent *fdinfo_dent; + char client_name[64] = { }; + unsigned int client_pid; + DIR *fdinfo_dir = NULL; + char buf[4096]; + size_t count; + + if (proc_dent->d_type != DT_DIR) + continue; + if (!isdigit(proc_dent->d_name[0])) + continue; + + pid_dir = openat(dirfd(proc_dir), proc_dent->d_name, + O_DIRECTORY | O_RDONLY); + if (pid_dir < 0) + continue; + + count = readat2buf(buf, sizeof(buf), pid_dir, "stat"); + if (!count) + goto next; + + client_pid = atoi(buf); + if (!client_pid) + goto next; + + if (!get_task_name(buf, client_name, sizeof(client_name))) + goto next; + + fd_dir = openat(pid_dir, "fd", O_DIRECTORY | O_RDONLY); + if (fd_dir < 0) + goto next; + + fdinfo_dir = opendirat(pid_dir, "fdinfo"); + if (!fdinfo_dir) + goto next; + + while ((fdinfo_dent = readdir(fdinfo_dir)) != NULL) { + struct drm_client_fdinfo info; + + if (fdinfo_dent->d_type != DT_REG) + continue; + if (!isdigit(fdinfo_dent->d_name[0])) + continue; + + if (!is_drm_fd(fd_dir, fdinfo_dent->d_name)) + continue; + + memset(&info, 0, sizeof(info)); + + if (!__igt_parse_drm_fdinfo(dirfd(fdinfo_dir), + fdinfo_dent->d_name, + &info)) + continue; + + if (filter_client && !filter_client(clients, &info)) + continue; + + if (igt_drm_clients_find(clients, IGT_DRM_CLIENT_ALIVE, + info.id)) + continue; /* Skip duplicate fds. */ + + c = igt_drm_clients_find(clients, IGT_DRM_CLIENT_PROBE, + info.id); + if (!c) + igt_drm_client_add(clients, &info, client_pid, + client_name); + else + igt_drm_client_update(c, client_pid, + client_name, &info); + } + +next: + if (fdinfo_dir) + closedir(fdinfo_dir); + if (fd_dir >= 0) + close(fd_dir); + if (pid_dir >= 0) + close(pid_dir); + } + + closedir(proc_dir); + + /* + * Clients still in 'probe' status after the scan have exited and need + * to be freed. + */ + igt_for_each_drm_client(clients, c, tmp) { + if (c->status == IGT_DRM_CLIENT_PROBE) + igt_drm_client_free(c); + else if (c->status == IGT_DRM_CLIENT_FREE) + break; + } + + return clients; +} diff --git a/lib/igt_drm_clients.h b/lib/igt_drm_clients.h new file mode 100644 index 000000000000..969793d5b51e --- /dev/null +++ b/lib/igt_drm_clients.h @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef IGT_DRM_CLIENTS_H +#define IGT_DRM_CLIENTS_H + +#include + +/** + * SECTION:igt_drm_clients + * @short_description: Parsing driver exposed fdinfo to track DRM clients + * @title: DRM clients parsing library + * @include: igt_drm_clients.h + * + * Some DRM drivers expose GPU usage statistics in DRM file descriptor fdinfo + * data as exposed in /proc. (As documented in kernel's + * Documentation/gpu/drm-usage-stats.rst.) + * + * This library enumerates all DRM clients by parsing that data and tracks them + * in a list of clients (struct igt_drm_clients) available for inspection + * after one or more calls to igt_drm_clients_scan. + */ + +struct drm_client_fdinfo; + +enum igt_drm_client_status { + IGT_DRM_CLIENT_FREE = 0, /* mbz */ + IGT_DRM_CLIENT_ALIVE, + IGT_DRM_CLIENT_PROBE +}; + +struct igt_drm_client_engine_class { + unsigned int engine_class; + const char *name; + unsigned int num_engines; +}; + +struct igt_drm_clients; + +struct igt_drm_client { + struct igt_drm_clients *clients; /* Owning list. */ + + enum igt_drm_client_status status; + unsigned int id; /* DRM client id from fdinfo. */ + unsigned int pid; /* PID which has this DRM fd open. */ + char name[24]; /* Process name of the owning PID. */ + char print_name[24]; /* Name without any non-printable characters. */ + unsigned int samples; /* Count of times scanning updated this client. */ + unsigned long total_runtime; /* Aggregate busyness on all engines since client start. */ + unsigned long last_runtime; /* Aggregate busyness on all engines since previous scan. */ + unsigned long *val; /* Array of engine busyness data, relative to previous scan. */ + uint64_t *last; /* Array of engine busyness data as parsed from fdinfo. */ +}; + +struct igt_drm_clients { + unsigned int num_clients; + unsigned int active_clients; + + unsigned int num_classes; + struct igt_drm_client_engine_class *engine_class; + + void *private_data; + + struct igt_drm_client *client; /* Must be last. */ +}; + +#define igt_for_each_drm_client(clients, c, tmp) \ + for ((tmp) = (clients)->num_clients, c = (clients)->client; \ + (tmp > 0); (tmp)--, (c)++) + +struct igt_drm_clients *igt_drm_clients_init(void *private_data); +void igt_drm_clients_free(struct igt_drm_clients *clients); + +struct igt_drm_clients * +igt_drm_clients_scan(struct igt_drm_clients *clients, + bool (*filter_client)(const struct igt_drm_clients *, + const struct drm_client_fdinfo *)); + +struct igt_drm_clients * +igt_drm_clients_sort(struct igt_drm_clients *clients, + int (*cmp)(const void *, const void *)); + +#endif /* IGT_DRM_CLIENTS_H */ diff --git a/lib/meson.build b/lib/meson.build index ccee7a596561..6a1475fdafda 100644 --- a/lib/meson.build +++ b/lib/meson.build @@ -18,6 +18,7 @@ lib_sources = [ 'igt_debugfs.c', 'igt_device.c', 'igt_device_scan.c', + 'igt_drm_clients.h', 'igt_drm_fdinfo.c', 'igt_aux.c', 'igt_gt.c', @@ -219,6 +220,13 @@ lib_igt_device_scan_build = static_library('igt_device_scan', lib_igt_device_scan = declare_dependency(link_with : lib_igt_device_scan_build, include_directories : inc) +lib_igt_drm_clients_build = static_library('igt_drm_clients', + ['igt_drm_clients.c'], + include_directories : inc) + +lib_igt_drm_clients = declare_dependency(link_with : lib_igt_drm_clients_build, + include_directories : inc) + lib_igt_drm_fdinfo_build = static_library('igt_drm_fdinfo', ['igt_drm_fdinfo.c'], include_directories : inc) diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c index 1984c10dca29..9cc4e776af94 100644 --- a/tools/intel_gpu_top.c +++ b/tools/intel_gpu_top.c @@ -46,6 +46,7 @@ #include #include "igt_perf.h" +#include "igt_drm_clients.h" #include "igt_drm_fdinfo.h" #define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0])) @@ -80,16 +81,10 @@ struct engine { struct pmu_counter sema; }; -struct engine_class { - unsigned int class; - const char *name; - unsigned int num_engines; -}; - struct engines { unsigned int num_engines; unsigned int num_classes; - struct engine_class *class; + struct igt_drm_client_engine_class *class; unsigned int num_counters; DIR *root; int fd; @@ -638,163 +633,10 @@ static void pmu_sample(struct engines *engines) } } -enum client_status { - FREE = 0, /* mbz */ - ALIVE, - PROBE -}; - -struct clients; - -struct client { - struct clients *clients; - - enum client_status status; - unsigned int id; - unsigned int pid; - char name[24]; - char print_name[24]; - unsigned int samples; - unsigned long total_runtime; - unsigned long last_runtime; - unsigned long *val; - uint64_t *last; -}; - -struct clients { - unsigned int num_clients; - unsigned int active_clients; - - unsigned int num_classes; - struct engine_class *class; - - char pci_slot[64]; - - struct client *client; -}; - -#define for_each_client(clients, c, tmp) \ - for ((tmp) = (clients)->num_clients, c = (clients)->client; \ - (tmp > 0); (tmp)--, (c)++) - -static struct clients *init_clients(const char *pci_slot) -{ - struct clients *clients; - - clients = malloc(sizeof(*clients)); - if (!clients) - return NULL; - - memset(clients, 0, sizeof(*clients)); - - strncpy(clients->pci_slot, pci_slot, sizeof(clients->pci_slot)); - - return clients; -} - -static struct client * -find_client(struct clients *clients, enum client_status status, unsigned int id) -{ - unsigned int start, num; - struct client *c; - - start = status == FREE ? clients->active_clients : 0; /* Free block at the end. */ - num = clients->num_clients - start; - - for (c = &clients->client[start]; num; c++, num--) { - if (status != c->status) - continue; - - if (status == FREE || c->id == id) - return c; - } - - return NULL; -} - -static void -update_client(struct client *c, unsigned int pid, char *name, - const struct drm_client_fdinfo *info) -{ - unsigned int i; - - if (c->pid != pid) - c->pid = pid; - - if (strcmp(c->name, name)) { - char *p; - - strncpy(c->name, name, sizeof(c->name) - 1); - strncpy(c->print_name, name, sizeof(c->print_name) - 1); - - p = c->print_name; - while (*p) { - if (!isprint(*p)) - *p = '*'; - p++; - } - } - - c->last_runtime = 0; - c->total_runtime = 0; - - for (i = 0; i < c->clients->num_classes; i++) { - assert(i < ARRAY_SIZE(info->busy)); - - if (info->busy[i] < c->last[i]) - continue; /* It will catch up soon. */ - - c->total_runtime += info->busy[i]; - c->val[i] = info->busy[i] - c->last[i]; - c->last_runtime += c->val[i]; - c->last[i] = info->busy[i]; - } - - c->samples++; - c->status = ALIVE; -} - -static void -add_client(struct clients *clients, const struct drm_client_fdinfo *info, - unsigned int pid, char *name) -{ - struct client *c; - - assert(!find_client(clients, ALIVE, info->id)); - - c = find_client(clients, FREE, 0); - if (!c) { - unsigned int idx = clients->num_clients; - - clients->num_clients += (clients->num_clients + 2) / 2; - clients->client = realloc(clients->client, - clients->num_clients * sizeof(*c)); - assert(clients->client); - - c = &clients->client[idx]; - memset(c, 0, (clients->num_clients - idx) * sizeof(*c)); - } - - c->id = info->id; - c->clients = clients; - c->val = calloc(clients->num_classes, sizeof(c->val)); - c->last = calloc(clients->num_classes, sizeof(c->last)); - assert(c->val && c->last); - - update_client(c, pid, name, info); -} - -static void free_client(struct client *c) -{ - free(c->val); - free(c->last); - memset(c, 0, sizeof(*c)); -} - static int client_last_cmp(const void *_a, const void *_b) { - const struct client *a = _a; - const struct client *b = _b; + const struct igt_drm_client *a = _a; + const struct igt_drm_client *b = _b; long tot_a, tot_b; /* @@ -803,8 +645,8 @@ static int client_last_cmp(const void *_a, const void *_b) * id. */ - tot_a = a->status == ALIVE ? a->last_runtime : -1; - tot_b = b->status == ALIVE ? b->last_runtime : -1; + tot_a = a->status == IGT_DRM_CLIENT_ALIVE ? a->last_runtime : -1; + tot_b = b->status == IGT_DRM_CLIENT_ALIVE ? b->last_runtime : -1; tot_b -= tot_a; if (tot_b > 0) @@ -817,12 +659,12 @@ static int client_last_cmp(const void *_a, const void *_b) static int client_total_cmp(const void *_a, const void *_b) { - const struct client *a = _a; - const struct client *b = _b; + const struct igt_drm_client *a = _a; + const struct igt_drm_client *b = _b; long tot_a, tot_b; - tot_a = a->status == ALIVE ? a->total_runtime : -1; - tot_b = b->status == ALIVE ? b->total_runtime : -1; + tot_a = a->status == IGT_DRM_CLIENT_ALIVE ? a->total_runtime : -1; + tot_b = b->status == IGT_DRM_CLIENT_ALIVE ? b->total_runtime : -1; tot_b -= tot_a; if (tot_b > 0) @@ -835,12 +677,12 @@ static int client_total_cmp(const void *_a, const void *_b) static int client_id_cmp(const void *_a, const void *_b) { - const struct client *a = _a; - const struct client *b = _b; + const struct igt_drm_client *a = _a; + const struct igt_drm_client *b = _b; int id_a, id_b; - id_a = a->status == ALIVE ? a->id : -1; - id_b = b->status == ALIVE ? b->id : -1; + id_a = a->status == IGT_DRM_CLIENT_ALIVE ? a->id : -1; + id_b = b->status == IGT_DRM_CLIENT_ALIVE ? b->id : -1; id_b -= id_a; if (id_b > 0) @@ -853,12 +695,12 @@ static int client_id_cmp(const void *_a, const void *_b) static int client_pid_cmp(const void *_a, const void *_b) { - const struct client *a = _a; - const struct client *b = _b; + const struct igt_drm_client *a = _a; + const struct igt_drm_client *b = _b; int pid_a, pid_b; - pid_a = a->status == ALIVE ? a->pid : INT_MAX; - pid_b = b->status == ALIVE ? b->pid : INT_MAX; + pid_a = a->status == IGT_DRM_CLIENT_ALIVE ? a->pid : INT_MAX; + pid_b = b->status == IGT_DRM_CLIENT_ALIVE ? b->pid : INT_MAX; pid_b -= pid_a; if (pid_b > 0) @@ -871,56 +713,19 @@ static int client_pid_cmp(const void *_a, const void *_b) static int (*client_cmp)(const void *, const void *) = client_last_cmp; -static struct clients *sort_clients(struct clients *clients, - int (*cmp)(const void *, const void *)) -{ - unsigned int active, free; - struct client *c; - int tmp; - - if (!clients) - return clients; - - qsort(clients->client, clients->num_clients, sizeof(*clients->client), - cmp); - - /* Trim excessive array space. */ - active = 0; - for_each_client(clients, c, tmp) { - if (c->status != ALIVE) - break; /* Active clients are first in the array. */ - active++; - } - - clients->active_clients = active; - - free = clients->num_clients - active; - if (free > clients->num_clients / 2) { - active = clients->num_clients - free / 2; - if (active != clients->num_clients) { - clients->num_clients = active; - clients->client = realloc(clients->client, - clients->num_clients * - sizeof(*c)); - } - } - - return clients; -} - static bool aggregate_pids = true; -static struct clients *display_clients(struct clients *clients) +static struct igt_drm_clients *display_clients(struct igt_drm_clients *clients) { - struct client *ac, *c, *cp = NULL; - struct clients *aggregated; + struct igt_drm_client *ac, *c, *cp = NULL; + struct igt_drm_clients *aggregated; int tmp, num = 0; if (!aggregate_pids) goto out; /* Sort by pid first to make it easy to aggregate while walking. */ - sort_clients(clients, client_pid_cmp); + igt_drm_clients_sort(clients, client_pid_cmp); aggregated = calloc(1, sizeof(*clients)); assert(aggregated); @@ -929,23 +734,24 @@ static struct clients *display_clients(struct clients *clients) assert(ac); aggregated->num_classes = clients->num_classes; - aggregated->class = clients->class; + aggregated->engine_class = clients->engine_class; + aggregated->private_data = clients->private_data; aggregated->client = ac; - for_each_client(clients, c, tmp) { + igt_for_each_drm_client(clients, c, tmp) { unsigned int i; - if (c->status == FREE) + if (c->status == IGT_DRM_CLIENT_FREE) break; - assert(c->status == ALIVE); + assert(c->status == IGT_DRM_CLIENT_ALIVE); if (!cp || c->pid != cp->pid) { ac = &aggregated->client[num++]; /* New pid. */ ac->clients = aggregated; - ac->status = ALIVE; + ac->status = IGT_DRM_CLIENT_ALIVE; ac->id = -c->pid; ac->pid = c->pid; strcpy(ac->name, c->name); @@ -975,215 +781,21 @@ static struct clients *display_clients(struct clients *clients) clients = aggregated; out: - return sort_clients(clients, client_cmp); + return igt_drm_clients_sort(clients, client_cmp); } -static void free_clients(struct clients *clients) +static void free_display_clients(struct igt_drm_clients *clients) { - struct client *c; - unsigned int tmp; + struct igt_drm_client *c; + int tmp; - for_each_client(clients, c, tmp) { + igt_for_each_drm_client(clients, c, tmp) free(c->val); - free(c->last); - } free(clients->client); free(clients); } -static bool is_drm_fd(DIR *fd_dir, const char *name) -{ - struct stat stat; - int ret; - - ret = fstatat(dirfd(fd_dir), name, &stat, 0); - - return ret == 0 && - (stat.st_mode & S_IFMT) == S_IFCHR && - major(stat.st_rdev) == 226; -} - -static bool get_task_name(const char *buffer, char *out, unsigned long sz) -{ - char *s = index(buffer, '('); - char *e = rindex(buffer, ')'); - unsigned int len; - - if (!s || !e) - return false; - assert(e >= s); - - len = e - ++s; - if(!len || (len + 1) >= sz) - return false; - - strncpy(out, s, len); - out[len] = 0; - - return true; -} - -static DIR *opendirat(DIR *at, const char *name) -{ - DIR *dir; - int fd; - - fd = openat(dirfd(at), name, O_DIRECTORY); - if (fd < 0) - return NULL; - - dir = fdopendir(fd); - if (!dir) - close(fd); - - return dir; -} - -static FILE *fropenat(DIR *at, const char *name) -{ - FILE *f; - int fd; - - fd = openat(dirfd(at), name, O_RDONLY); - if (fd < 0) - return NULL; - - f = fdopen(fd, "r"); - if (!f) - close(fd); - - return f; -} - -static size_t freadat2buf(char *buf, const size_t sz, DIR *at, const char *name) -{ - size_t count; - FILE *f; - - f = fropenat(at, name); - if (!f) - return 0; - - buf[sz - 1] = 0; - count = fread(buf, 1, sz, f); - buf[count - 1] = 0; - fclose(f); - - return count; -} - -static struct clients *scan_clients(struct clients *clients) -{ - struct dirent *proc_dent; - struct client *c; - DIR *proc_dir; - int tmp; - - if (!clients) - return clients; - - for_each_client(clients, c, tmp) { - assert(c->status != PROBE); - if (c->status == ALIVE) - c->status = PROBE; - else - break; /* Free block at the end of array. */ - } - - proc_dir = opendir("/proc"); - if (!proc_dir) - return clients; - - while ((proc_dent = readdir(proc_dir)) != NULL) { - DIR *pid_dir = NULL, *fd_dir = NULL, *fdinfo_dir = NULL; - struct dirent *fdinfo_dent; - char client_name[64] = { }; - unsigned int client_pid; - char buf[4096]; - size_t count; - - if (proc_dent->d_type != DT_DIR) - continue; - if (!isdigit(proc_dent->d_name[0])) - continue; - - pid_dir = opendirat(proc_dir, proc_dent->d_name); - if (!pid_dir) - continue; - - count = freadat2buf(buf, sizeof(buf), pid_dir, "stat"); - if (!count) - goto next; - - client_pid = atoi(buf); - if (!client_pid) - goto next; - - if (!get_task_name(buf, client_name, sizeof(client_name))) - goto next; - - fd_dir = opendirat(pid_dir, "fd"); - if (!fd_dir) - goto next; - - fdinfo_dir = opendirat(pid_dir, "fdinfo"); - if (!fdinfo_dir) - goto next; - - while ((fdinfo_dent = readdir(fdinfo_dir)) != NULL) { - struct drm_client_fdinfo info = { }; - - if (fdinfo_dent->d_type != DT_REG) - continue; - if (!isdigit(fdinfo_dent->d_name[0])) - continue; - - if (!is_drm_fd(fd_dir, fdinfo_dent->d_name)) - continue; - - if (!__igt_parse_drm_fdinfo(dirfd(fdinfo_dir), - fdinfo_dent->d_name, - &info)) - continue; - - if (strcmp(info.driver, "i915")) - continue; - if (strcmp(info.pdev, clients->pci_slot)) - continue; - if (find_client(clients, ALIVE, info.id)) - continue; /* Skip duplicate fds. */ - - c = find_client(clients, PROBE, info.id); - if (!c) - add_client(clients, &info, client_pid, - client_name); - else - update_client(c, client_pid, client_name, - &info); - } - -next: - if (fdinfo_dir) - closedir(fdinfo_dir); - if (fd_dir) - closedir(fd_dir); - if (pid_dir) - closedir(pid_dir); - } - - closedir(proc_dir); - - for_each_client(clients, c, tmp) { - if (c->status == PROBE) - free_client(c); - else if (c->status == FREE) - break; - } - - return display_clients(clients); -} - static const char *bars[] = { " ", "▏", "▎", "▍", "▌", "▋", "▊", "▉", "█" }; static void n_spaces(const unsigned int n) @@ -1886,15 +1498,15 @@ print_engines_footer(struct engines *engines, double t, static int class_cmp(const void *_a, const void *_b) { - const struct engine_class *a = _a; - const struct engine_class *b = _b; + const struct igt_drm_client_engine_class *a = _a; + const struct igt_drm_client_engine_class *b = _b; - return a->class - b->class; + return a->engine_class - b->engine_class; } static void init_engine_classes(struct engines *engines) { - struct engine_class *classes; + struct igt_drm_client_engine_class *classes; unsigned int i, num; int max = -1; @@ -1921,7 +1533,7 @@ static void init_engine_classes(struct engines *engines) } for (i = 0; i < num; i++) { - classes[i].class = i; + classes[i].engine_class = i; classes[i].name = class_display_name(i); } @@ -2063,7 +1675,7 @@ print_engines(struct engines *engines, double t, int lines, int w, int h) } static int -print_clients_header(struct clients *clients, int lines, +print_clients_header(struct igt_drm_clients *clients, int lines, int con_w, int con_h, int *class_w) { if (output_mode == INTERACTIVE) { @@ -2085,19 +1697,19 @@ print_clients_header(struct clients *clients, int lines, int width; for (i = 0; i < clients->num_classes; i++) { - if (clients->class[i].num_engines) + if (clients->engine_class[i].num_engines) num_active++; } *class_w = width = (con_w - len) / num_active; for (i = 0; i < clients->num_classes; i++) { - const char *name = clients->class[i].name; + const char *name = clients->engine_class[i].name; int name_len = strlen(name); int pad = (width - name_len) / 2; int spaces = width - pad - name_len; - if (!clients->class[i].num_engines) + if (!clients->engine_class[i].num_engines) continue; /* Assert in the ideal world. */ if (pad < 0 || spaces < 0) @@ -2124,10 +1736,10 @@ static bool numeric_clients; static bool filter_idle; static int -print_client(struct client *c, struct engines *engines, double t, int lines, +print_client(struct igt_drm_client *c, struct engines *engines, double t, int lines, int con_w, int con_h, unsigned int period_us, int *class_w) { - struct clients *clients = c->clients; + struct igt_drm_clients *clients = c->clients; unsigned int i; if (output_mode == INTERACTIVE) { @@ -2141,11 +1753,11 @@ print_client(struct client *c, struct engines *engines, double t, int lines, for (i = 0; c->samples > 1 && i < clients->num_classes; i++) { double pct; - if (!clients->class[i].num_engines) + if (!clients->engine_class[i].num_engines) continue; /* Assert in the ideal world. */ pct = (double)c->val[i] / period_us / 1e3 * 100 / - clients->class[i].num_engines; + clients->engine_class[i].num_engines; /* * Guard against possible time-drift between sampling @@ -2177,7 +1789,7 @@ print_client(struct client *c, struct engines *engines, double t, int lines, double pct; snprintf(buf, sizeof(buf), "%s", - clients->class[i].name); + clients->engine_class[i].name); pops->open_struct(buf); pct = (double)c->val[i] / period_us / 1e3 * 100; @@ -2199,7 +1811,7 @@ print_client(struct client *c, struct engines *engines, double t, int lines, } static int -print_clients_footer(struct clients *clients, double t, +print_clients_footer(struct igt_drm_clients *clients, double t, int lines, int con_w, int con_h) { if (output_mode == INTERACTIVE) { @@ -2403,10 +2015,21 @@ static void show_help_screen(void) "\n"); } +static bool client_match(const struct igt_drm_clients *clients, + const struct drm_client_fdinfo *info) +{ + if (strcmp(info->driver, "i915")) + return false; + if (strcmp(info->pdev, clients->private_data)) + return false; + + return true; +} + int main(int argc, char **argv) { unsigned int period_us = DEFAULT_PERIOD_MS * 1000; - struct clients *clients = NULL; + struct igt_drm_clients *clients = NULL; int con_w = -1, con_h = -1; char *output_path = NULL; struct engines *engines; @@ -2545,24 +2168,24 @@ int main(int argc, char **argv) ret = EXIT_SUCCESS; - clients = init_clients(card.pci_slot_name[0] ? - card.pci_slot_name : IGPU_PCI); + clients = igt_drm_clients_init(strdup(card.pci_slot_name[0] ? + card.pci_slot_name : IGPU_PCI)); init_engine_classes(engines); if (clients) { clients->num_classes = engines->num_classes; - clients->class = engines->class; + clients->engine_class = engines->class; } pmu_sample(engines); - scan_clients(clients); + igt_drm_clients_scan(clients, client_match); codename = igt_device_get_pretty_name(&card, false); while (!stop_top) { - struct clients *disp_clients; + struct igt_drm_clients *disp_clients; bool consumed = false; int j, lines = 0; struct winsize ws; - struct client *c; + struct igt_drm_client *c; double t; /* Update terminal size. */ @@ -2581,7 +2204,9 @@ int main(int argc, char **argv) pmu_sample(engines); t = (double)(engines->ts.cur - engines->ts.prev) / 1e9; - disp_clients = scan_clients(clients); + disp_clients = + display_clients(igt_drm_clients_scan(clients, + client_match)); if (stop_top) break; @@ -2609,9 +2234,9 @@ int main(int argc, char **argv) con_w, con_h, &class_w); - for_each_client(disp_clients, c, j) { - assert(c->status != PROBE); - if (c->status != ALIVE) + igt_for_each_drm_client(disp_clients, c, j) { + assert(c->status != IGT_DRM_CLIENT_PROBE); + if (c->status != IGT_DRM_CLIENT_ALIVE) break; /* Active clients are first in the array. */ if (lines >= con_h) @@ -2635,7 +2260,7 @@ int main(int argc, char **argv) break; if (disp_clients != clients) - free_clients(disp_clients); + free_display_clients(disp_clients); if (output_mode == INTERACTIVE) process_stdin(period_us); diff --git a/tools/meson.build b/tools/meson.build index 771d0b9e3d5d..e65aceeef9fa 100644 --- a/tools/meson.build +++ b/tools/meson.build @@ -91,7 +91,7 @@ install_subdir('registers', install_dir : datadir) executable('intel_gpu_top', 'intel_gpu_top.c', install : true, install_rpath : bindir_rpathdir, - dependencies : [lib_igt_perf,lib_igt_device_scan,lib_igt_drm_fdinfo,math]) + dependencies : [lib_igt_perf,lib_igt_device_scan,lib_igt_drm_clients,lib_igt_drm_fdinfo,math]) executable('amd_hdmi_compliance', 'amd_hdmi_compliance.c', dependencies : [tool_deps], From patchwork Wed May 11 12:18:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 12846145 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AA0B4C433FE for ; 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a="330278442" X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="330278442" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:32 -0700 X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="520495122" Received: from mmlucey-mobl1.ger.corp.intel.com (HELO tursulin-mobl2.home) ([10.213.195.130]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:31 -0700 From: Tvrtko Ursulin To: igt-dev@lists.freedesktop.org Date: Wed, 11 May 2022 13:18:15 +0100 Message-Id: <20220511121821.1010974-3-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> References: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 2/8] libdrmfdinfo: Allow specifying custom engine map X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Instead of hard coding the engine names, allow a map of names to indices to either be passed in or it gets auto-detected (less efficient) while parsing. Signed-off-by: Tvrtko Ursulin --- lib/igt_drm_clients.c | 18 +++++++++++++--- lib/igt_drm_clients.h | 3 ++- lib/igt_drm_fdinfo.c | 48 +++++++++++++++++++++++++++-------------- lib/igt_drm_fdinfo.h | 15 ++++++++++--- tests/i915/drm_fdinfo.c | 18 ++++++++++++---- tools/intel_gpu_top.c | 13 +++++++++-- 6 files changed, 86 insertions(+), 29 deletions(-) diff --git a/lib/igt_drm_clients.c b/lib/igt_drm_clients.c index 658c684b8fb0..c42ce1dbc43f 100644 --- a/lib/igt_drm_clients.c +++ b/lib/igt_drm_clients.c @@ -294,14 +294,26 @@ static bool is_drm_fd(int fd_dir, const char *name) * igt_drm_clients_scan: * @clients: Previously initialised clients object * @filter_client: Callback for client filtering + * @name_map: Array of engine name strings + * @map_entries: Number of items in the @name_map array * * Scan all open file descriptors from all processes in order to find all DRM * clients and manage our internal list. + * + * If @name_map is provided each found engine in the fdinfo struct must + * correspond to one of the provided names. In this case the index of the engine + * stats tracked in struct igt_drm_client will be tracked under the same index + * as the engine name provided. + * + * If @name_map is not provided engine names will be auto-detected (this is + * less performant) and indices will correspond with auto-detected names as + * listed int clients->engine_class[]. */ struct igt_drm_clients * igt_drm_clients_scan(struct igt_drm_clients *clients, bool (*filter_client)(const struct igt_drm_clients *, - const struct drm_client_fdinfo *)) + const struct drm_client_fdinfo *), + const char **name_map, unsigned int map_entries) { struct dirent *proc_dent; struct igt_drm_client *c; @@ -379,8 +391,8 @@ igt_drm_clients_scan(struct igt_drm_clients *clients, memset(&info, 0, sizeof(info)); if (!__igt_parse_drm_fdinfo(dirfd(fdinfo_dir), - fdinfo_dent->d_name, - &info)) + fdinfo_dent->d_name, &info, + name_map, map_entries)) continue; if (filter_client && !filter_client(clients, &info)) diff --git a/lib/igt_drm_clients.h b/lib/igt_drm_clients.h index 969793d5b51e..bced19adb055 100644 --- a/lib/igt_drm_clients.h +++ b/lib/igt_drm_clients.h @@ -76,7 +76,8 @@ void igt_drm_clients_free(struct igt_drm_clients *clients); struct igt_drm_clients * igt_drm_clients_scan(struct igt_drm_clients *clients, bool (*filter_client)(const struct igt_drm_clients *, - const struct drm_client_fdinfo *)); + const struct drm_client_fdinfo *), + const char **name_map, unsigned int map_entries); struct igt_drm_clients * igt_drm_clients_sort(struct igt_drm_clients *clients, diff --git a/lib/igt_drm_fdinfo.c b/lib/igt_drm_fdinfo.c index b422f67a4ace..9b5c81a9b68d 100644 --- a/lib/igt_drm_fdinfo.c +++ b/lib/igt_drm_fdinfo.c @@ -22,6 +22,7 @@ * */ +#include #include #include #include @@ -53,14 +54,10 @@ static size_t read_fdinfo(char *buf, const size_t sz, int at, const char *name) } static int parse_engine(char *line, struct drm_client_fdinfo *info, - size_t prefix_len, uint64_t *val) + size_t prefix_len, + const char **name_map, unsigned int map_entries, + uint64_t *val) { - static const char *e2class[] = { - "render", - "copy", - "video", - "video-enhance", - }; ssize_t name_len; char *name, *p; int found = -1; @@ -76,10 +73,26 @@ static int parse_engine(char *line, struct drm_client_fdinfo *info, name = line + prefix_len; - for (i = 0; i < ARRAY_SIZE(e2class); i++) { - if (!strncmp(name, e2class[i], name_len)) { - found = i; - break; + if (name_map) { + for (i = 0; i < map_entries; i++) { + if (!strncmp(name, name_map[i], name_len)) { + found = i; + break; + } + } + } else { + for (i = 0; i < info->num_engines; i++) { + if (!strncmp(name, info->names[i], name_len)) { + found = i; + break; + } + } + + if (found < 0) { + assert((info->num_engines + 1) < ARRAY_SIZE(info->names)); + assert((strlen(name) + 1) < sizeof(info->names[0])); + strncpy(info->names[info->num_engines], name, name_len); + found = info->num_engines; } } @@ -112,7 +125,8 @@ static const char *find_kv(const char *buf, const char *key, size_t keylen) } unsigned int -__igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info) +__igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info, + const char **name_map, unsigned int map_entries) { char buf[4096], *_buf = buf; char *l, *ctx = NULL; @@ -142,7 +156,7 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info) } else if (!strncmp(l, "drm-engine-", 11) && strncmp(l, "drm-engine-capacity-", 20)) { idx = parse_engine(l, info, strlen("drm-engine-"), - &val); + name_map, map_entries, &val); if (idx >= 0) { if (!info->capacity[idx]) info->capacity[idx] = 1; @@ -152,7 +166,7 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info) } else if (!strncmp(l, "drm-engine-capacity-", 20)) { idx = parse_engine(l, info, strlen("drm-engine-capacity-"), - &val); + name_map, map_entries, &val); if (idx >= 0) { info->capacity[idx] = val; num_capacity++; @@ -166,7 +180,9 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info) return good + info->num_engines + num_capacity; } -unsigned int igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info) +unsigned int +igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info, + const char **name_map, unsigned int map_entries) { unsigned int res; char fd[64]; @@ -180,7 +196,7 @@ unsigned int igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info) if (dir < 0) return false; - res = __igt_parse_drm_fdinfo(dir, fd, info); + res = __igt_parse_drm_fdinfo(dir, fd, info, name_map, map_entries); close(dir); diff --git a/lib/igt_drm_fdinfo.h b/lib/igt_drm_fdinfo.h index 5db63e28b07e..8e62c5962a58 100644 --- a/lib/igt_drm_fdinfo.h +++ b/lib/igt_drm_fdinfo.h @@ -39,6 +39,7 @@ struct drm_client_fdinfo { unsigned int num_engines; unsigned int capacity[DRM_CLIENT_FDINFO_MAX_ENGINES]; + char names[DRM_CLIENT_FDINFO_MAX_ENGINES][256]; uint64_t busy[DRM_CLIENT_FDINFO_MAX_ENGINES]; }; @@ -47,11 +48,15 @@ struct drm_client_fdinfo { * * @drm_fd: DRM file descriptor * @info: Structure to populate with read data + * @name_map: Optional array of strings representing engine names + * @map_entries: Number of strings in the names array * * Returns the number of valid drm fdinfo keys found or zero if not all * mandatory keys were present or no engines found. */ -unsigned int igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info); +unsigned int +igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info, + const char **name_map, unsigned int map_entries); /** * __igt_parse_drm_fdinfo: Parses the drm fdinfo file @@ -59,11 +64,15 @@ unsigned int igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info); * @dir: File descriptor pointing to /proc/pid/fdinfo directory * @fd: String representation of the file descriptor number to parse. * @info: Structure to populate with read data + * @name_map: Optional array of strings representing engine names + * @map_entries: Number of strings in the names array * * Returns the number of valid drm fdinfo keys found or zero if not all * mandatory keys were present or no engines found. */ -unsigned int __igt_parse_drm_fdinfo(int dir, const char *fd, - struct drm_client_fdinfo *info); +unsigned int +__igt_parse_drm_fdinfo(int dir, const char *fd, + struct drm_client_fdinfo *info, + const char **name_map, unsigned int map_entries); #endif /* IGT_DRM_FDINFO_H */ diff --git a/tests/i915/drm_fdinfo.c b/tests/i915/drm_fdinfo.c index 3475d35b23b9..87ad8c8d7c7e 100644 --- a/tests/i915/drm_fdinfo.c +++ b/tests/i915/drm_fdinfo.c @@ -34,6 +34,13 @@ IGT_TEST_DESCRIPTION("Test the i915 drm fdinfo data"); const double tolerance = 0.05f; const unsigned long batch_duration_ns = 500e6; +static const char *engine_map[] = { + "render", + "copy", + "video", + "video-enhance", +}; + #define __assert_within_epsilon(x, ref, tol_up, tol_down) \ igt_assert_f((double)(x) <= (1.0 + (tol_up)) * (double)(ref) && \ (double)(x) >= (1.0 - (tol_down)) * (double)(ref), \ @@ -50,7 +57,8 @@ static void basics(int i915, unsigned int num_classes) struct drm_client_fdinfo info = { }; unsigned int ret; - ret = igt_parse_drm_fdinfo(i915, &info); + ret = igt_parse_drm_fdinfo(i915, &info, engine_map, + ARRAY_SIZE(engine_map)); igt_assert(ret); igt_assert(!strcmp(info.driver, "i915")); @@ -181,7 +189,8 @@ static uint64_t read_busy(int i915, unsigned int class) { struct drm_client_fdinfo info = { }; - igt_assert(igt_parse_drm_fdinfo(i915, &info)); + igt_assert(igt_parse_drm_fdinfo(i915, &info, engine_map, + ARRAY_SIZE(engine_map))); return info.busy[class]; } @@ -267,7 +276,8 @@ static void read_busy_all(int i915, uint64_t *val) { struct drm_client_fdinfo info = { }; - igt_assert(igt_parse_drm_fdinfo(i915, &info)); + igt_assert(igt_parse_drm_fdinfo(i915, &info, engine_map, + ARRAY_SIZE(engine_map))); memcpy(val, info.busy, sizeof(info.busy)); } @@ -459,7 +469,7 @@ igt_main i915 = __drm_open_driver(DRIVER_INTEL); igt_require_gem(i915); - igt_require(igt_parse_drm_fdinfo(i915, &info)); + igt_require(igt_parse_drm_fdinfo(i915, &info, NULL, 0)); ctx = intel_ctx_create_all_physical(i915); diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c index 9cc4e776af94..5322b23a7712 100644 --- a/tools/intel_gpu_top.c +++ b/tools/intel_gpu_top.c @@ -2030,6 +2030,12 @@ int main(int argc, char **argv) { unsigned int period_us = DEFAULT_PERIOD_MS * 1000; struct igt_drm_clients *clients = NULL; + static const char *engine_map[] = { + "render", + "copy", + "video", + "video-enhance", + }; int con_w = -1, con_h = -1; char *output_path = NULL; struct engines *engines; @@ -2177,7 +2183,8 @@ int main(int argc, char **argv) } pmu_sample(engines); - igt_drm_clients_scan(clients, client_match); + igt_drm_clients_scan(clients, client_match, engine_map, + ARRAY_SIZE(engine_map)); codename = igt_device_get_pretty_name(&card, false); while (!stop_top) { @@ -2206,7 +2213,9 @@ int main(int argc, char **argv) disp_clients = display_clients(igt_drm_clients_scan(clients, - client_match)); + client_match, + engine_map, + ARRAY_SIZE(engine_map))); if (stop_top) break; From patchwork Wed May 11 12:18:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 12846147 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0D676C433F5 for ; Wed, 11 May 2022 12:18:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E4C3610E890; 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11 May 2022 05:18:33 -0700 X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="520495133" Received: from mmlucey-mobl1.ger.corp.intel.com (HELO tursulin-mobl2.home) ([10.213.195.130]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:32 -0700 From: Tvrtko Ursulin To: igt-dev@lists.freedesktop.org Date: Wed, 11 May 2022 13:18:16 +0100 Message-Id: <20220511121821.1010974-4-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> References: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 3/8] libdrmclients: Record client drm minor X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Prepare for supporting clients belonging to multiple DRM cards by storing the DRM minor in the client record. Signed-off-by: Tvrtko Ursulin --- lib/igt_drm_clients.c | 22 ++++++++++++++-------- lib/igt_drm_clients.h | 1 + 2 files changed, 15 insertions(+), 8 deletions(-) diff --git a/lib/igt_drm_clients.c b/lib/igt_drm_clients.c index c42ce1dbc43f..7defa464e76b 100644 --- a/lib/igt_drm_clients.c +++ b/lib/igt_drm_clients.c @@ -115,7 +115,7 @@ igt_drm_client_update(struct igt_drm_client *c, unsigned int pid, char *name, static void igt_drm_client_add(struct igt_drm_clients *clients, const struct drm_client_fdinfo *info, - unsigned int pid, char *name) + unsigned int pid, char *name, unsigned int drm_minor) { struct igt_drm_client *c; @@ -140,6 +140,7 @@ igt_drm_client_add(struct igt_drm_clients *clients, } c->id = info->id; + c->drm_minor = drm_minor; c->clients = clients; c->val = calloc(clients->num_classes, sizeof(c->val)); c->last = calloc(clients->num_classes, sizeof(c->last)); @@ -278,16 +279,21 @@ static bool get_task_name(const char *buffer, char *out, unsigned long sz) return true; } -static bool is_drm_fd(int fd_dir, const char *name) +static bool is_drm_fd(int fd_dir, const char *name, unsigned int *minor) { struct stat stat; int ret; ret = fstatat(fd_dir, name, &stat, 0); - return ret == 0 && - (stat.st_mode & S_IFMT) == S_IFCHR && - major(stat.st_rdev) == 226; + if (ret == 0 && + (stat.st_mode & S_IFMT) == S_IFCHR && + major(stat.st_rdev) == 226) { + *minor = minor(stat.st_rdev); + return true; + } + + return false; } /** @@ -340,10 +346,10 @@ igt_drm_clients_scan(struct igt_drm_clients *clients, return clients; while ((proc_dent = readdir(proc_dir)) != NULL) { + unsigned int client_pid, minor = 0; int pid_dir = -1, fd_dir = -1; struct dirent *fdinfo_dent; char client_name[64] = { }; - unsigned int client_pid; DIR *fdinfo_dir = NULL; char buf[4096]; size_t count; @@ -385,7 +391,7 @@ igt_drm_clients_scan(struct igt_drm_clients *clients, if (!isdigit(fdinfo_dent->d_name[0])) continue; - if (!is_drm_fd(fd_dir, fdinfo_dent->d_name)) + if (!is_drm_fd(fd_dir, fdinfo_dent->d_name, &minor)) continue; memset(&info, 0, sizeof(info)); @@ -406,7 +412,7 @@ igt_drm_clients_scan(struct igt_drm_clients *clients, info.id); if (!c) igt_drm_client_add(clients, &info, client_pid, - client_name); + client_name, minor); else igt_drm_client_update(c, client_pid, client_name, &info); diff --git a/lib/igt_drm_clients.h b/lib/igt_drm_clients.h index bced19adb055..ffa219c9c9fd 100644 --- a/lib/igt_drm_clients.h +++ b/lib/igt_drm_clients.h @@ -44,6 +44,7 @@ struct igt_drm_client { enum igt_drm_client_status status; unsigned int id; /* DRM client id from fdinfo. */ + unsigned int drm_minor; /* DRM minor of this client. */ unsigned int pid; /* PID which has this DRM fd open. */ char name[24]; /* Process name of the owning PID. */ char print_name[24]; /* Name without any non-printable characters. */ From patchwork Wed May 11 12:18:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 12846146 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DAC58C4332F for ; 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a="269348743" X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="269348743" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:35 -0700 X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="520495140" Received: from mmlucey-mobl1.ger.corp.intel.com (HELO tursulin-mobl2.home) ([10.213.195.130]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:33 -0700 From: Tvrtko Ursulin To: igt-dev@lists.freedesktop.org Date: Wed, 11 May 2022 13:18:17 +0100 Message-Id: <20220511121821.1010974-5-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> References: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 4/8] libdrmclient: Support multiple DRM cards X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Require DRM minor match during client lookup. Signed-off-by: Tvrtko Ursulin --- lib/igt_drm_clients.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/lib/igt_drm_clients.c b/lib/igt_drm_clients.c index 7defa464e76b..331e511b2f93 100644 --- a/lib/igt_drm_clients.c +++ b/lib/igt_drm_clients.c @@ -49,7 +49,7 @@ struct igt_drm_clients *igt_drm_clients_init(void *private_data) static struct igt_drm_client * igt_drm_clients_find(struct igt_drm_clients *clients, enum igt_drm_client_status status, - unsigned int id) + unsigned int drm_minor, unsigned int id) { unsigned int start, num; struct igt_drm_client *c; @@ -61,7 +61,8 @@ igt_drm_clients_find(struct igt_drm_clients *clients, if (status != c->status) continue; - if (status == IGT_DRM_CLIENT_FREE || c->id == id) + if (status == IGT_DRM_CLIENT_FREE || + (drm_minor == c->drm_minor && c->id == id)) return c; } @@ -119,9 +120,10 @@ igt_drm_client_add(struct igt_drm_clients *clients, { struct igt_drm_client *c; - assert(!igt_drm_clients_find(clients, IGT_DRM_CLIENT_ALIVE, info->id)); + assert(!igt_drm_clients_find(clients, IGT_DRM_CLIENT_ALIVE, + drm_minor, info->id)); - c = igt_drm_clients_find(clients, IGT_DRM_CLIENT_FREE, 0); + c = igt_drm_clients_find(clients, IGT_DRM_CLIENT_FREE, 0, 0); if (!c) { unsigned int idx = clients->num_clients; @@ -405,11 +407,11 @@ igt_drm_clients_scan(struct igt_drm_clients *clients, continue; if (igt_drm_clients_find(clients, IGT_DRM_CLIENT_ALIVE, - info.id)) + minor, info.id)) continue; /* Skip duplicate fds. */ c = igt_drm_clients_find(clients, IGT_DRM_CLIENT_PROBE, - info.id); + minor, info.id); if (!c) igt_drm_client_add(clients, &info, client_pid, client_name, minor); From patchwork Wed May 11 12:18:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 12846149 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B8B62C4332F for ; Wed, 11 May 2022 12:18:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5FE9110E9FA; Wed, 11 May 2022 12:18:42 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8266F10E1D7; Wed, 11 May 2022 12:18:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652271516; x=1683807516; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=FvGbaNGCq/+K3Cjb2cto+uL5fRGt5j2OYiLdp0WO3ew=; b=DgXn3wx1AiQH9DV0KsuCo/A0v1V8JGNbyp6KsXrpfZwT9MqsvOanTzGB 6Wpd0h9bQIXOScXgOT2XG40iojW9//KI4JS7SWu60Mjak2BwN+1N3YO7y c16t93dxsH7Pn+vRkLHHS2rZjin84w7RLWoat7hugE8AV6XxgKs0MOUR7 C63L9JUsfvhprKolkKvI1VdcJP9MljjyfOAOXxXUBHIxjHjbO8RNg0Ng4 tIEYH4y5/W0Rd9SlXzqbXwDPYYwCut/xdVYCQEnrZDPRG7GHXcleXlqft JpG3kHXr5ArynSydOKxXyk4S1Jrg53eaAlAszpY/DugQAYcf3TLlgMZFV Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10343"; a="269348752" X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="269348752" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:36 -0700 X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="520495149" Received: from mmlucey-mobl1.ger.corp.intel.com (HELO tursulin-mobl2.home) ([10.213.195.130]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:35 -0700 From: Tvrtko Ursulin To: igt-dev@lists.freedesktop.org Date: Wed, 11 May 2022 13:18:18 +0100 Message-Id: <20220511121821.1010974-6-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> References: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 5/8] libdrmfdinfo: Track largest engine index X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Prep code for incoming work. Signed-off-by: Tvrtko Ursulin --- lib/igt_drm_fdinfo.c | 2 ++ lib/igt_drm_fdinfo.h | 1 + 2 files changed, 3 insertions(+) diff --git a/lib/igt_drm_fdinfo.c b/lib/igt_drm_fdinfo.c index 9b5c81a9b68d..f056b1a14b0e 100644 --- a/lib/igt_drm_fdinfo.c +++ b/lib/igt_drm_fdinfo.c @@ -162,6 +162,8 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info, info->capacity[idx] = 1; info->busy[idx] = val; info->num_engines++; + if (idx > info->last_engine_index) + info->last_engine_index = idx; } } else if (!strncmp(l, "drm-engine-capacity-", 20)) { idx = parse_engine(l, info, diff --git a/lib/igt_drm_fdinfo.h b/lib/igt_drm_fdinfo.h index 8e62c5962a58..2dd8ea141e50 100644 --- a/lib/igt_drm_fdinfo.h +++ b/lib/igt_drm_fdinfo.h @@ -38,6 +38,7 @@ struct drm_client_fdinfo { unsigned long id; unsigned int num_engines; + unsigned int last_engine_index; unsigned int capacity[DRM_CLIENT_FDINFO_MAX_ENGINES]; char names[DRM_CLIENT_FDINFO_MAX_ENGINES][256]; uint64_t busy[DRM_CLIENT_FDINFO_MAX_ENGINES]; From patchwork Wed May 11 12:18:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 12846148 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 97226C433FE for ; Wed, 11 May 2022 12:18:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 566CC10E9B7; Wed, 11 May 2022 12:18:41 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id D084310E890; Wed, 11 May 2022 12:18:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652271517; x=1683807517; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=GMnROS31UUTYhBN0UtvkEjQj9ohYMHrLC7r4U1nyxB8=; b=HH3ydJcuqy80N40+UBMq/AL3+bBRKEY6d2su/MYx7Ni4Kijrt2JDyYlM egFVXl8Xf18AXIqmDfezCceXb1tzZ/OY2AV96cVV2TE8W80TE/f0plUGo 8MVKpvVrKIgV3UnixeOlqLELNgw+lUOtICq8TNQrc9Pf8L5HKNi52C5Fp V+TP0tlG5PUw2rdpd6KsVfyqKQZyGPOmCpN6jKphxfJYGCAwR1hl8loWd +cEM8af7+Fmd8UWbMUwJadfGGKZkRJnQ8rFun2eGrNbnU9GsWSzw43+Vv KmueqcwkxejreZBFT/FfyszAdENIMD7LYckdHBPXuRHjPcLsP9F8FleEE Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10343"; a="269348761" X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="269348761" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:37 -0700 X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="520495157" Received: from mmlucey-mobl1.ger.corp.intel.com (HELO tursulin-mobl2.home) ([10.213.195.130]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:36 -0700 From: Tvrtko Ursulin To: igt-dev@lists.freedesktop.org Date: Wed, 11 May 2022 13:18:19 +0100 Message-Id: <20220511121821.1010974-7-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> References: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 6/8] libdrmclient/intel_gpu_top: Decouple hardcoded engine assumptions X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Intel_gpu_top gets it's main engine configuration data via PMU probe and uses that for per client view as well. Furthemore code so far assumed only clients belonging from a single DRM card would be tracked in a single clients list. Break this inter-dependency by moving the engine data to be per client and also have libdrmclient probe the engine configuration independently using the previously added libdrmfdinfo facilities. Signed-off-by: Tvrtko Ursulin --- lib/igt_drm_clients.c | 36 ++++++++++++-- lib/igt_drm_clients.h | 14 +++--- tools/intel_gpu_top.c | 112 ++++++++++++++++++++++++++++++------------ 3 files changed, 120 insertions(+), 42 deletions(-) diff --git a/lib/igt_drm_clients.c b/lib/igt_drm_clients.c index 331e511b2f93..5c24907d094d 100644 --- a/lib/igt_drm_clients.c +++ b/lib/igt_drm_clients.c @@ -97,7 +97,7 @@ igt_drm_client_update(struct igt_drm_client *c, unsigned int pid, char *name, c->last_runtime = 0; c->total_runtime = 0; - for (i = 0; i < c->clients->num_classes; i++) { + for (i = 0; i <= c->engines->max_engine_id; i++) { assert(i < ARRAY_SIZE(info->busy)); if (info->busy[i] < c->last[i]) @@ -119,6 +119,7 @@ igt_drm_client_add(struct igt_drm_clients *clients, unsigned int pid, char *name, unsigned int drm_minor) { struct igt_drm_client *c; + unsigned int i; assert(!igt_drm_clients_find(clients, IGT_DRM_CLIENT_ALIVE, drm_minor, info->id)); @@ -144,8 +145,28 @@ igt_drm_client_add(struct igt_drm_clients *clients, c->id = info->id; c->drm_minor = drm_minor; c->clients = clients; - c->val = calloc(clients->num_classes, sizeof(c->val)); - c->last = calloc(clients->num_classes, sizeof(c->last)); + c->engines = malloc(sizeof(*c->engines)); + assert(c->engines); + memset(c->engines, 0, sizeof(*c->engines)); + c->engines->capacity = calloc(info->last_engine_index + 1, + sizeof(*c->engines->capacity)); + assert(c->engines->capacity); + c->engines->names = calloc(info->last_engine_index + 1, + sizeof(*c->engines->names)); + assert(c->engines->names); + + for (i = 0; i <= info->last_engine_index; i++) { + if (!info->capacity[i]) + continue; + + c->engines->capacity[i] = info->capacity[i]; + c->engines->names[i] = strdup(info->names[i]); + assert(c->engines->names[i]); + c->engines->num_engines++; + c->engines->max_engine_id = i; + } + c->val = calloc(c->engines->max_engine_id + 1, sizeof(c->val)); + c->last = calloc(c->engines->max_engine_id + 1, sizeof(c->last)); assert(c->val && c->last); igt_drm_client_update(c, pid, name, info); @@ -154,6 +175,13 @@ igt_drm_client_add(struct igt_drm_clients *clients, static void igt_drm_client_free(struct igt_drm_client *c) { + unsigned int i; + + for (i = 0; i <= c->engines->max_engine_id; i++) + free(c->engines->names[i]); + free(c->engines->capacity); + free(c->engines->names); + free(c->engines); free(c->val); free(c->last); memset(c, 0, sizeof(*c)); @@ -315,7 +343,7 @@ static bool is_drm_fd(int fd_dir, const char *name, unsigned int *minor) * * If @name_map is not provided engine names will be auto-detected (this is * less performant) and indices will correspond with auto-detected names as - * listed int clients->engine_class[]. + * listed int clients->engines->names[]. */ struct igt_drm_clients * igt_drm_clients_scan(struct igt_drm_clients *clients, diff --git a/lib/igt_drm_clients.h b/lib/igt_drm_clients.h index ffa219c9c9fd..0a903b431eaa 100644 --- a/lib/igt_drm_clients.h +++ b/lib/igt_drm_clients.h @@ -31,10 +31,12 @@ enum igt_drm_client_status { IGT_DRM_CLIENT_PROBE }; -struct igt_drm_client_engine_class { - unsigned int engine_class; - const char *name; - unsigned int num_engines; +struct igt_drm_client_engines { + unsigned int num_engines; /* Number of discovered active engines. */ + unsigned int max_engine_id; /* Largest engine index discovered. + (Can differ from num_engines - 1 when using the engine map facility.) */ + unsigned int *capacity; /* Array of engine capacities as parsed from fdinfo. */ + char **names; /* Array of engine names, either auto-detected or from the passed in engine map. */ }; struct igt_drm_clients; @@ -43,6 +45,7 @@ struct igt_drm_client { struct igt_drm_clients *clients; /* Owning list. */ enum igt_drm_client_status status; + struct igt_drm_client_engines *engines; /* Engines used by this client, to map with busynees data. */ unsigned int id; /* DRM client id from fdinfo. */ unsigned int drm_minor; /* DRM minor of this client. */ unsigned int pid; /* PID which has this DRM fd open. */ @@ -59,9 +62,6 @@ struct igt_drm_clients { unsigned int num_clients; unsigned int active_clients; - unsigned int num_classes; - struct igt_drm_client_engine_class *engine_class; - void *private_data; struct igt_drm_client *client; /* Must be last. */ diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c index 5322b23a7712..e603d40fc98d 100644 --- a/tools/intel_gpu_top.c +++ b/tools/intel_gpu_top.c @@ -66,6 +66,12 @@ struct pmu_counter { bool present; }; +struct engine_class { + unsigned int engine_class; + const char *name; + unsigned int num_engines; +}; + struct engine { const char *name; char *display_name; @@ -84,7 +90,7 @@ struct engine { struct engines { unsigned int num_engines; unsigned int num_classes; - struct igt_drm_client_engine_class *class; + struct engine_class *class; unsigned int num_counters; DIR *root; int fd; @@ -116,6 +122,11 @@ struct engines { }; +struct intel_clients { + const char *pci_slot; + struct igt_drm_client_engines classes; +}; + static struct termios termios_orig; __attribute__((format(scanf,3,4))) @@ -733,9 +744,8 @@ static struct igt_drm_clients *display_clients(struct igt_drm_clients *clients) ac = calloc(clients->num_clients, sizeof(*c)); assert(ac); - aggregated->num_classes = clients->num_classes; - aggregated->engine_class = clients->engine_class; aggregated->private_data = clients->private_data; + aggregated->client = ac; igt_for_each_drm_client(clients, c, tmp) { @@ -756,7 +766,8 @@ static struct igt_drm_clients *display_clients(struct igt_drm_clients *clients) ac->pid = c->pid; strcpy(ac->name, c->name); strcpy(ac->print_name, c->print_name); - ac->val = calloc(clients->num_classes, + ac->engines = c->engines; + ac->val = calloc(c->engines->max_engine_id + 1, sizeof(ac->val[0])); assert(ac->val); ac->samples = 1; @@ -771,7 +782,7 @@ static struct igt_drm_clients *display_clients(struct igt_drm_clients *clients) ac->total_runtime += c->total_runtime; ac->last_runtime += c->last_runtime; - for (i = 0; i < clients->num_classes; i++) + for (i = 0; i <= c->engines->max_engine_id; i++) ac->val[i] += c->val[i]; } @@ -1498,15 +1509,15 @@ print_engines_footer(struct engines *engines, double t, static int class_cmp(const void *_a, const void *_b) { - const struct igt_drm_client_engine_class *a = _a; - const struct igt_drm_client_engine_class *b = _b; + const struct engine_class *a = _a; + const struct engine_class *b = _b; return a->engine_class - b->engine_class; } static void init_engine_classes(struct engines *engines) { - struct igt_drm_client_engine_class *classes; + struct engine_class *classes; unsigned int i, num; int max = -1; @@ -1678,6 +1689,8 @@ static int print_clients_header(struct igt_drm_clients *clients, int lines, int con_w, int con_h, int *class_w) { + struct intel_clients *iclients = clients->private_data; + if (output_mode == INTERACTIVE) { const char *pidname = " PID NAME "; unsigned int num_active = 0; @@ -1692,25 +1705,25 @@ print_clients_header(struct igt_drm_clients *clients, int lines, if (lines++ >= con_h || len >= con_w) return lines; - if (clients->num_classes) { + if (iclients->classes.num_engines) { unsigned int i; int width; - for (i = 0; i < clients->num_classes; i++) { - if (clients->engine_class[i].num_engines) + for (i = 0; i <= iclients->classes.max_engine_id; i++) { + if (iclients->classes.capacity[i]) num_active++; } *class_w = width = (con_w - len) / num_active; - for (i = 0; i < clients->num_classes; i++) { - const char *name = clients->engine_class[i].name; + for (i = 0; i <= iclients->classes.max_engine_id; i++) { + const char *name = iclients->classes.names[i]; int name_len = strlen(name); int pad = (width - name_len) / 2; int spaces = width - pad - name_len; - if (!clients->engine_class[i].num_engines) - continue; /* Assert in the ideal world. */ + if (!iclients->classes.capacity[i]) + continue; if (pad < 0 || spaces < 0) continue; @@ -1725,7 +1738,7 @@ print_clients_header(struct igt_drm_clients *clients, int lines, n_spaces(con_w - len); printf("\033[0m\n"); } else { - if (clients->num_classes) + if (iclients->classes.num_engines) pops->open_struct("clients"); } @@ -1740,6 +1753,7 @@ print_client(struct igt_drm_client *c, struct engines *engines, double t, int li int con_w, int con_h, unsigned int period_us, int *class_w) { struct igt_drm_clients *clients = c->clients; + struct intel_clients *iclients = clients->private_data; unsigned int i; if (output_mode == INTERACTIVE) { @@ -1750,14 +1764,16 @@ print_client(struct igt_drm_client *c, struct engines *engines, double t, int li printf("%6u %17s ", c->pid, c->print_name); - for (i = 0; c->samples > 1 && i < clients->num_classes; i++) { + for (i = 0; + c->samples > 1 && i <= iclients->classes.max_engine_id; + i++) { double pct; - if (!clients->engine_class[i].num_engines) - continue; /* Assert in the ideal world. */ + if (!iclients->classes.capacity[i]) + continue; pct = (double)c->val[i] / period_us / 1e3 * 100 / - clients->engine_class[i].num_engines; + iclients->classes.capacity[i]; /* * Guard against possible time-drift between sampling @@ -1785,11 +1801,11 @@ print_client(struct igt_drm_client *c, struct engines *engines, double t, int li if (c->samples > 1) { pops->open_struct("engine-classes"); - for (i = 0; i < clients->num_classes; i++) { + for (i = 0; i <= iclients->classes.max_engine_id; i++) { double pct; snprintf(buf, sizeof(buf), "%s", - clients->engine_class[i].name); + iclients->classes.names[i]); pops->open_struct(buf); pct = (double)c->val[i] / period_us / 1e3 * 100; @@ -1818,7 +1834,9 @@ print_clients_footer(struct igt_drm_clients *clients, double t, if (lines++ < con_h) printf("\n"); } else { - if (clients->num_classes) + struct intel_clients *iclients = clients->private_data; + + if (iclients->classes.num_engines) pops->close_struct(); } @@ -2018,14 +2036,47 @@ static void show_help_screen(void) static bool client_match(const struct igt_drm_clients *clients, const struct drm_client_fdinfo *info) { + struct intel_clients *iclients = clients->private_data; + if (strcmp(info->driver, "i915")) return false; - if (strcmp(info->pdev, clients->private_data)) + if (strcmp(info->pdev, iclients->pci_slot)) return false; return true; } +static void +intel_init_clients(struct intel_clients *iclients, + const struct igt_device_card *card, struct engines *engines) +{ + unsigned int i; + + iclients->pci_slot = strdup(card->pci_slot_name[0] ? + card->pci_slot_name : IGPU_PCI); + assert(iclients->pci_slot); + + iclients->classes.num_engines = engines->num_classes; + iclients->classes.max_engine_id = engines->num_classes - 1; + + iclients->classes.capacity = calloc(engines->num_classes, + sizeof(*iclients->classes.capacity)); + assert(iclients->classes.capacity); + iclients->classes.names = calloc(engines->num_classes, + sizeof(*iclients->classes.names)); + assert(iclients->classes.names); + + for (i = 0; i < engines->num_classes; i++) { + if (!engines->class[i].num_engines) + continue; + + iclients->classes.num_engines++; + iclients->classes.max_engine_id = i; + iclients->classes.capacity[i] = engines->class[i].num_engines; + iclients->classes.names[i] = strdup(engines->class[i].name); + } +} + int main(int argc, char **argv) { unsigned int period_us = DEFAULT_PERIOD_MS * 1000; @@ -2036,6 +2087,7 @@ int main(int argc, char **argv) "video", "video-enhance", }; + struct intel_clients iclients; int con_w = -1, con_h = -1; char *output_path = NULL; struct engines *engines; @@ -2146,6 +2198,8 @@ int main(int argc, char **argv) else pmu_device = strdup("i915"); + codename = igt_device_get_pretty_name(&card, false); + engines = discover_engines(pmu_device); if (!engines) { fprintf(stderr, @@ -2174,18 +2228,14 @@ int main(int argc, char **argv) ret = EXIT_SUCCESS; - clients = igt_drm_clients_init(strdup(card.pci_slot_name[0] ? - card.pci_slot_name : IGPU_PCI)); init_engine_classes(engines); - if (clients) { - clients->num_classes = engines->num_classes; - clients->engine_class = engines->class; - } + + intel_init_clients(&iclients, &card, engines); + clients = igt_drm_clients_init(&iclients); pmu_sample(engines); igt_drm_clients_scan(clients, client_match, engine_map, ARRAY_SIZE(engine_map)); - codename = igt_device_get_pretty_name(&card, false); while (!stop_top) { struct igt_drm_clients *disp_clients; From patchwork Wed May 11 12:18:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 12846151 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E8F3CC433EF for ; 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a="269348768" X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="269348768" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:38 -0700 X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="520495165" Received: from mmlucey-mobl1.ger.corp.intel.com (HELO tursulin-mobl2.home) ([10.213.195.130]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:37 -0700 From: Tvrtko Ursulin To: igt-dev@lists.freedesktop.org Date: Wed, 11 May 2022 13:18:20 +0100 Message-Id: <20220511121821.1010974-8-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> References: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 7/8] libdrmclient: Enforce client status sort order in the library X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Some libdrmclient operations require that inactive clients are last in the list. Rather than relying on callers of the library sort routine to implement their comparison callbacks correctly, enforce this order directly in the library and let callers comparison callbacks concern themselves only with ordering they are interested in. Signed-off-by: Tvrtko Ursulin --- lib/igt_drm_clients.c | 37 +++++++++++++++----- lib/igt_drm_clients.h | 2 +- tools/intel_gpu_top.c | 81 +++++++++++++++++++------------------------ 3 files changed, 65 insertions(+), 55 deletions(-) diff --git a/lib/igt_drm_clients.c b/lib/igt_drm_clients.c index 5c24907d094d..ae00e0db120a 100644 --- a/lib/igt_drm_clients.c +++ b/lib/igt_drm_clients.c @@ -187,22 +187,38 @@ void igt_drm_client_free(struct igt_drm_client *c) memset(c, 0, sizeof(*c)); } +struct sort_context +{ + int (*user_cmp)(const void *, const void *, void *); +}; + +static int sort_cmp(const void *_a, const void *_b, void *_ctx) +{ + const struct sort_context *ctx = _ctx; + const struct igt_drm_client *a = _a; + const struct igt_drm_client *b = _b; + int cmp = b->status - a->status; + + if (cmp == 0) + return ctx->user_cmp(_a, _b, _ctx); + else + return cmp; +} + /** * igt_drm_clients_sort: * @clients: Previously initialised clients object * @cmp: Client comparison callback * * Sort the clients array according to the passed in comparison callback which - * is compatible with the qsort(3) semantics. - * - * Caller has to ensure the callback is putting all active - * (IGT_DRM_CLIENT_ALIVE) clients in a single group at the head of the array - * before any other sorting criteria. + * is compatible with the qsort(3) semantics, with the third void * argument + * being unused. */ struct igt_drm_clients * igt_drm_clients_sort(struct igt_drm_clients *clients, - int (*cmp)(const void *, const void *)) + int (*cmp)(const void *, const void *, void *)) { + struct sort_context ctx = { .user_cmp = cmp }; unsigned int active, free; struct igt_drm_client *c; int tmp; @@ -210,8 +226,13 @@ igt_drm_clients_sort(struct igt_drm_clients *clients, if (!clients) return clients; - qsort(clients->client, clients->num_clients, sizeof(*clients->client), - cmp); + /* + * Enforce client->status ordering (active followed by free) by running + * the user provided comparison callback wrapped in the one internal + * to the library. + */ + qsort_r(clients->client, clients->num_clients, sizeof(*clients->client), + sort_cmp, &ctx); /* Trim excessive array space. */ active = 0; diff --git a/lib/igt_drm_clients.h b/lib/igt_drm_clients.h index 0a903b431eaa..df8022d42098 100644 --- a/lib/igt_drm_clients.h +++ b/lib/igt_drm_clients.h @@ -82,6 +82,6 @@ igt_drm_clients_scan(struct igt_drm_clients *clients, struct igt_drm_clients * igt_drm_clients_sort(struct igt_drm_clients *clients, - int (*cmp)(const void *, const void *)); + int (*cmp)(const void *, const void *, void *)); #endif /* IGT_DRM_CLIENTS_H */ diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c index e603d40fc98d..51006b272e74 100644 --- a/tools/intel_gpu_top.c +++ b/tools/intel_gpu_top.c @@ -644,85 +644,74 @@ static void pmu_sample(struct engines *engines) } } -static int client_last_cmp(const void *_a, const void *_b) +static int +__client_id_cmp(const struct igt_drm_client *a, + const struct igt_drm_client *b) +{ + if (a->id > b->id) + return 1; + else if (a->id < b->id) + return -1; + else + return 0; +} + +static int client_last_cmp(const void *_a, const void *_b, void *unused) { const struct igt_drm_client *a = _a; const struct igt_drm_client *b = _b; - long tot_a, tot_b; + long val_a = a->last_runtime, val_b = b->last_runtime; /* * Sort clients in descending order of runtime in the previous sampling - * period for active ones, followed by inactive. Tie-breaker is client - * id. + * period. Tie-breaker is client id. */ - tot_a = a->status == IGT_DRM_CLIENT_ALIVE ? a->last_runtime : -1; - tot_b = b->status == IGT_DRM_CLIENT_ALIVE ? b->last_runtime : -1; - - tot_b -= tot_a; - if (tot_b > 0) + if (val_a == val_b) + return __client_id_cmp(a, b); + else if (val_b > val_a) return 1; - if (tot_b < 0) + else return -1; - - return (int)b->id - a->id; } -static int client_total_cmp(const void *_a, const void *_b) +static int client_total_cmp(const void *_a, const void *_b, void *unused) { const struct igt_drm_client *a = _a; const struct igt_drm_client *b = _b; - long tot_a, tot_b; + long val_a = a->total_runtime, val_b = b->total_runtime; - tot_a = a->status == IGT_DRM_CLIENT_ALIVE ? a->total_runtime : -1; - tot_b = b->status == IGT_DRM_CLIENT_ALIVE ? b->total_runtime : -1; - - tot_b -= tot_a; - if (tot_b > 0) + if (val_a == val_b) + return __client_id_cmp(a, b); + else if (val_b > val_a) return 1; - if (tot_b < 0) + else return -1; - - return (int)b->id - a->id; } -static int client_id_cmp(const void *_a, const void *_b) +static int client_id_cmp(const void *_a, const void *_b, void *unused) { const struct igt_drm_client *a = _a; const struct igt_drm_client *b = _b; - int id_a, id_b; - - id_a = a->status == IGT_DRM_CLIENT_ALIVE ? a->id : -1; - id_b = b->status == IGT_DRM_CLIENT_ALIVE ? b->id : -1; - - id_b -= id_a; - if (id_b > 0) - return 1; - if (id_b < 0) - return -1; - return (int)b->id - a->id; + return __client_id_cmp(a, b); } -static int client_pid_cmp(const void *_a, const void *_b) +static int client_pid_cmp(const void *_a, const void *_b, void *unused) { const struct igt_drm_client *a = _a; const struct igt_drm_client *b = _b; - int pid_a, pid_b; - - pid_a = a->status == IGT_DRM_CLIENT_ALIVE ? a->pid : INT_MAX; - pid_b = b->status == IGT_DRM_CLIENT_ALIVE ? b->pid : INT_MAX; + int val_a = a->pid, val_b = b->pid; - pid_b -= pid_a; - if (pid_b > 0) + if (val_a == val_b) + return __client_id_cmp(a, b); + else if (val_b > val_a) return -1; - if (pid_b < 0) + else return 1; - - return (int)a->id - b->id; } -static int (*client_cmp)(const void *, const void *) = client_last_cmp; +static int (*client_cmp)(const void *, const void *, void *) = client_last_cmp; static bool aggregate_pids = true; @@ -1910,7 +1899,7 @@ static void interactive_stdin(void) static void select_client_sort(void) { struct { - int (*cmp)(const void *, const void *); + int (*cmp)(const void *, const void *, void *); const char *msg; } cmp[] = { { client_last_cmp, "Sorting clients by current GPU usage." }, From patchwork Wed May 11 12:18:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tvrtko Ursulin X-Patchwork-Id: 12846150 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8E852C433F5 for ; Wed, 11 May 2022 12:18:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0704C10E9D6; Wed, 11 May 2022 12:18:42 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id B178A10E973; Wed, 11 May 2022 12:18:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652271520; x=1683807520; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bKfStTHbfU9/FcLoVr9tp0haXs+wW5nwBqIgJs5ujmQ=; b=Xjot0nR89u6u/f3JE5j1+gxXCZI+dD5dWB1M69DvFqyB9zn2aXJU9dvZ XAfiOWJtFOz7GYss49vQ7BKThx3iOCiRJcBEFWejye9Szipi2X9DKLp4S zvZibQh/8XtbEgs6woiQRYKDIyfUGwujvuleEJEfssqf129MWsh9x1/OH gmYl2lzbOS7jMszO9gKQclcyxKNo0tyZUDoHcAXBz65/5x420ydA6CIwr btgQC0RMLTNSARhWU/LqS9KqhNgxCmWWr3UZTAGPZy1/CCq54NYZAgUEj cDErpY+C4bTFKrpLdmS5r/Ik48Be6SqCzgchF9gs4BzKFtUSdJiSc+NRk A==; X-IronPort-AV: E=McAfee;i="6400,9594,10343"; a="269348772" X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="269348772" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:40 -0700 X-IronPort-AV: E=Sophos;i="5.91,217,1647327600"; d="scan'208";a="520495174" Received: from mmlucey-mobl1.ger.corp.intel.com (HELO tursulin-mobl2.home) ([10.213.195.130]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 05:18:39 -0700 From: Tvrtko Ursulin To: igt-dev@lists.freedesktop.org Date: Wed, 11 May 2022 13:18:21 +0100 Message-Id: <20220511121821.1010974-9-tvrtko.ursulin@linux.intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> References: <20220511121821.1010974-1-tvrtko.ursulin@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t 8/8] gputop: Basic vendor agnostic GPU top tool X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rob Clark , =?utf-8?q?Christian_K=C3=B6nig?= , Intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tvrtko Ursulin Rudimentary vendor agnostic example of how lib_igt_drm_clients can be used to display a sorted by card and usage list of processes using GPUs. Borrows a bit of code from intel_gpu_top but for now omits the fancy features like interactive functionality, card selection, client aggregation, sort modes, JSON output and pretty engine names. Also no support for global GPU or system metrics. On the other hand it shows clients from all DRM cards which intel_gpu_top does not do. Signed-off-by: Tvrtko Ursulin Cc: Rob Clark Cc: Christian König --- tools/gputop.c | 260 ++++++++++++++++++++++++++++++++++++++++++++++ tools/meson.build | 5 + 2 files changed, 265 insertions(+) create mode 100644 tools/gputop.c diff --git a/tools/gputop.c b/tools/gputop.c new file mode 100644 index 000000000000..d259cac1ab17 --- /dev/null +++ b/tools/gputop.c @@ -0,0 +1,260 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "igt_drm_clients.h" +#include "igt_drm_fdinfo.h" + +static const char *bars[] = { " ", "▏", "▎", "▍", "▌", "▋", "▊", "▉", "█" }; + +static void n_spaces(const unsigned int n) +{ + unsigned int i; + + for (i = 0; i < n; i++) + putchar(' '); +} + +static void print_percentage_bar(double percent, int max_len) +{ + int bar_len, i, len = max_len - 2; + const int w = 8; + + assert(max_len > 0); + + bar_len = ceil(w * percent * len / 100.0); + if (bar_len > w * len) + bar_len = w * len; + + putchar('|'); + + for (i = bar_len; i >= w; i -= w) + printf("%s", bars[w]); + if (i) + printf("%s", bars[i]); + + len -= (bar_len + (w - 1)) / w; + n_spaces(len); + + putchar('|'); +} + +static int +print_client_header(struct igt_drm_client *c, int lines, int con_w, int con_h, + int *engine_w) +{ + const char *pidname = " PID NAME "; + int ret, len = strlen(pidname); + + if (lines++ >= con_h || len >= con_w) + return lines; + printf("\033[7m"); + ret = printf("DRM minor %u", c->drm_minor); + n_spaces(con_w - ret); + + if (lines++ >= con_h) + return lines; + printf("\n%s", pidname); + + if (c->engines->num_engines) { + unsigned int i; + int width; + + *engine_w = width = (con_w - len) / c->engines->num_engines; + + for (i = 0; i <= c->engines->max_engine_id; i++) { + const char *name = c->engines->names[i]; + int name_len = strlen(name); + int pad = (width - name_len) / 2; + int spaces = width - pad - name_len; + + if (!name) + continue; + + if (pad < 0 || spaces < 0) + continue; + + n_spaces(pad); + printf("%s", name); + n_spaces(spaces); + len += pad + name_len + spaces; + } + } + + n_spaces(con_w - len); + printf("\033[0m\n"); + + return lines; +} + + +static bool +newheader(const struct igt_drm_client *c, const struct igt_drm_client *pc) +{ + return !pc || c->drm_minor != pc->drm_minor; +} + +static int +print_client(struct igt_drm_client *c, struct igt_drm_client **prevc, + double t, int lines, int con_w, int con_h, + unsigned int period_us, int *engine_w) +{ + unsigned int i; + + /* Filter out idle clients. */ + if (!c->total_runtime || c->samples < 2) + return lines; + + /* Print header when moving to a different DRM card. */ + if (newheader(c, *prevc)) { + lines = print_client_header(c, lines, con_w, con_h, engine_w); + if (lines >= con_h) + return lines; + } + + *prevc = c; + + printf("%8u %17s ", c->pid, c->print_name); + lines++; + + for (i = 0; c->samples > 1 && i <= c->engines->max_engine_id; i++) { + double pct; + + if (!c->engines->capacity[i]) + continue; + + pct = (double)c->val[i] / period_us / 1e3 * 100 / + c->engines->capacity[i]; + + /* + * Guard against fluctuations between our scanning period and + * GPU times as exported by the kernel in fdinfo. + */ + if (pct > 100.0) + pct = 100.0; + + print_percentage_bar(pct, *engine_w); + } + + putchar('\n'); + + return lines; +} + +static int +__client_id_cmp(const struct igt_drm_client *a, + const struct igt_drm_client *b) +{ + if (a->id > b->id) + return 1; + else if (a->id < b->id) + return -1; + else + return 0; +} + +static int client_cmp(const void *_a, const void *_b, void *unused) +{ + const struct igt_drm_client *a = _a; + const struct igt_drm_client *b = _b; + long val_a, val_b; + + /* DRM cards into consecutive buckets first. */ + val_a = a->drm_minor; + val_b = b->drm_minor; + if (val_a > val_b) + return 1; + else if (val_b > val_a) + return -1; + + /* + * Within buckets sort by last sampling period aggregated runtime, with + * client id as a tie-breaker. + */ + val_a = a->last_runtime; + val_b = b->last_runtime; + if (val_a == val_b) + return __client_id_cmp(a, b); + else if (val_b > val_a) + return 1; + else + return -1; + +} + +int main(int argc, char **argv) +{ + unsigned int period_us = 2e6; + struct igt_drm_clients *clients = NULL; + int con_w = -1, con_h = -1; + + clients = igt_drm_clients_init(NULL); + if (!clients) + exit(1); + + igt_drm_clients_scan(clients, NULL, NULL, 0); + + for (;;) { + struct igt_drm_client *c, *prevc = NULL; + int i, engine_w = 0, lines = 0; + struct winsize ws; + + if (ioctl(0, TIOCGWINSZ, &ws) != -1) { + con_w = ws.ws_col; + con_h = ws.ws_row; + if (con_w == 0 && con_h == 0) { + /* Serial console. */ + con_w = 80; + con_h = 24; + } + } + + igt_drm_clients_scan(clients, NULL, NULL, 0); + igt_drm_clients_sort(clients, client_cmp); + + printf("\033[H\033[J"); + + igt_for_each_drm_client(clients, c, i) { + assert(c->status != IGT_DRM_CLIENT_PROBE); + if (c->status != IGT_DRM_CLIENT_ALIVE) + break; /* Active clients are first in the array. */ + + lines = print_client(c, &prevc, (double)period_us / 1e6, + lines, con_w, con_h, period_us, + &engine_w); + if (lines >= con_h) + break; + } + + if (lines++ < con_h) + printf("\n"); + + usleep(period_us); + } + + return 0; +} diff --git a/tools/meson.build b/tools/meson.build index e65aceeef9fa..508964004bb0 100644 --- a/tools/meson.build +++ b/tools/meson.build @@ -69,6 +69,11 @@ if libudev.found() install : true) endif +executable('gputop', 'gputop.c', + install : true, + install_rpath : bindir_rpathdir, + dependencies : [lib_igt_drm_clients,lib_igt_drm_fdinfo,math]) + intel_l3_parity_src = [ 'intel_l3_parity.c', 'intel_l3_udev_listener.c' ] executable('intel_l3_parity', sources : intel_l3_parity_src, dependencies : tool_deps,