From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id BB8AB6E05A for ; Mon, 17 Feb 2020 14:22:17 +0000 (UTC) From: Lionel Landwerlin Date: Mon, 17 Feb 2020 16:21:52 +0200 Message-Id: <20200217142155.501499-4-lionel.g.landwerlin@intel.com> In-Reply-To: <20200217142155.501499-1-lionel.g.landwerlin@intel.com> References: <20200217142155.501499-1-lionel.g.landwerlin@intel.com> MIME-Version: 1.0 Subject: [igt-dev] [PATCH i-g-t 3/6] lib/i915: Add support for loading perf configurations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: igt-dev@lists.freedesktop.org List-ID: --- lib/i915/perf.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++ lib/i915/perf.h | 2 ++ 2 files changed, 77 insertions(+) diff --git a/lib/i915/perf.c b/lib/i915/perf.c index 8aaf8e61..f23a9b12 100644 --- a/lib/i915/perf.c +++ b/lib/i915/perf.c @@ -433,3 +433,78 @@ intel_perf_add_metric_set(struct intel_perf *perf, { igt_list_add_tail(&metric_set->link, &perf->metric_sets); } + +static void +load_metric_set_config(struct intel_perf_metric_set *metric_set, int drm_fd) +{ + struct drm_i915_perf_oa_config config; + uint64_t config_id = 0; + + memset(&config, 0, sizeof(config)); + + memcpy(config.uuid, metric_set->hw_config_guid, sizeof(config.uuid)); + + config.n_mux_regs = metric_set->n_mux_regs; + config.mux_regs_ptr = (uintptr_t) metric_set->mux_regs; + + config.n_boolean_regs = metric_set->n_b_counter_regs; + config.boolean_regs_ptr = (uintptr_t) metric_set->b_counter_regs; + + config.n_flex_regs = metric_set->n_flex_regs; + config.flex_regs_ptr = (uintptr_t) metric_set->flex_regs; + + while (ioctl(drm_fd, DRM_IOCTL_I915_PERF_ADD_CONFIG, &config) < 0 && + (errno == EAGAIN || errno == EINTR)); + + metric_set->perf_oa_metrics_set = config_id; +} + +void +intel_perf_load_perf_configs(struct intel_perf *perf, int drm_fd) +{ + int drm_card = get_card_for_fd(drm_fd); + struct dirent *entry; + char metrics_path[128]; + DIR *metrics_dir; + struct intel_perf_metric_set *metric_set; + + snprintf(metrics_path, sizeof(metrics_path), + "/sys/class/drm/card%d/metrics", drm_card); + metrics_dir = opendir(metrics_path); + if (!metrics_dir) + return; + + while ((entry = readdir(metrics_dir))) { + char *metric_id_path; + uint64_t metric_id; + + if (entry->d_type != DT_DIR) + continue; + + asprintf(&metric_id_path, "%s/%s/id", + metrics_path, entry->d_name); + + if (!read_file_uint64(metric_id_path, &metric_id)) { + free(metric_id_path); + continue; + } + + free(metric_id_path); + + igt_list_for_each_entry(metric_set, &perf->metric_sets, link) { + if (!strcmp(metric_set->hw_config_guid, entry->d_name)) { + metric_set->perf_oa_metrics_set = metric_id; + break; + } + } + } + + closedir(metrics_dir); + + igt_list_for_each_entry(metric_set, &perf->metric_sets, link) { + if (metric_set->perf_oa_metrics_set) + continue; + + load_metric_set_config(metric_set, drm_fd); + } +} diff --git a/lib/i915/perf.h b/lib/i915/perf.h index 7dfa0472..246d06cf 100644 --- a/lib/i915/perf.h +++ b/lib/i915/perf.h @@ -220,6 +220,8 @@ void intel_perf_add_logical_counter(struct intel_perf *perf, void intel_perf_add_metric_set(struct intel_perf *perf, struct intel_perf_metric_set *metric_set); +void intel_perf_load_perf_configs(struct intel_perf *perf, int drm_fd); + #ifdef __cplusplus }; #endif -- 2.25.0 _______________________________________________ igt-dev mailing list igt-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/igt-dev