From patchwork Tue Apr 11 22:56:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 13208325 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9400EC76196 for ; Tue, 11 Apr 2023 22:58:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229710AbjDKW6Z (ORCPT ); Tue, 11 Apr 2023 18:58:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229742AbjDKW6O (ORCPT ); Tue, 11 Apr 2023 18:58:14 -0400 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 217AE4231; Tue, 11 Apr 2023 15:58:07 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id i8so424985plt.10; Tue, 11 Apr 2023 15:58:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1681253880; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=x+Y9rFqb6JFNxJRIVkTus3EfCZpjMTDt8LZNCNaQpSk=; b=Gnjl7xlKzgOD/FJhGOxJSatQoxNL92VZh1T010f+KMpLHbiNZMjI7OWmHq276109UH 4K8CKrZ4DPT8+9EnkvzjFKLuqWTJR53DQkzE3hdWTh1SlyJmD7d38SELk6BIrnX1brXA T9czLy89UglFKjNxrn0eVWxN1wjrlCFqELBa0XskKNZzlgC+ogr2fv0eq4XVr12hhuUi B9HQrOatX0K1+5FJRTnv3bQbV/yZfGXLpzAUGKOv60Aye+TC0bNkXJiC7H3U6A/2bS0q XQ4IL8tKObllfWhuXE5QlVCU0yd0nMtqs5ZpgdS4dtO6yKpHQvx90a/rzYX85bTvam7Q QJKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1681253880; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=x+Y9rFqb6JFNxJRIVkTus3EfCZpjMTDt8LZNCNaQpSk=; b=QSH5laOz8AE1m39zgeUSY+yoqzKJNtv/U4SgYIxvY6S4+oC0kx++VavoOZ8rjYCGuJ 4BzhqvIsjxSpiFF9kacgsepQm86fGtwcSE4kB6wIIpavFNSjOjfQAReQDbxoUXzzqcyG IJ0VHHxPtukZO91a/cYfJ2IIGcWn0zg+hY4FZGfWyZrdmroWxgo30tSyQ9ptw0DLf6Tl c8Q3LRzBEbyFJqFq9I3MVDHhq+owSmiiw9Egpkmll+vVTAFaV25Q7tIEwD/IsJr15iBD 9U4rNOmPdhwOT+T0oUgEP7aPkpJ0wpXL889f2wJhcvxTehNuL8zKga722gZSbhhiOP61 CD8Q== X-Gm-Message-State: AAQBX9fHUT4HdpRALJ6z+tawjDXTRgu1rjZDr/YFbqBqXFZ87WtQzTA8 aQvTjvQrLAj65GONmnpDH5c= X-Google-Smtp-Source: AKy350ZV8ggQN6BVMgCuSSsJXeTi9lsYz/FHoIFgXYmD7SwhxOmNXUaQ+6yjVlQd6SYy9rt71Gz2yQ== X-Received: by 2002:a17:902:e38b:b0:1a6:4689:fc79 with SMTP id g11-20020a170902e38b00b001a64689fc79mr5681467ple.20.1681253879710; Tue, 11 Apr 2023 15:57:59 -0700 (PDT) Received: from localhost ([2a00:79e1:abd:4a00:61b:48ed:72ab:435b]) by smtp.gmail.com with ESMTPSA id l2-20020a170902d34200b001a1abc93eabsm10220811plk.226.2023.04.11.15.57.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Apr 2023 15:57:59 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Boris Brezillon , Tvrtko Ursulin , Christopher Healy , Emil Velikov , Rob Clark , David Airlie , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Jonathan Corbet , linux-doc@vger.kernel.org (open list:DOCUMENTATION), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v3 6/7] drm: Add fdinfo memory stats Date: Tue, 11 Apr 2023 15:56:11 -0700 Message-Id: <20230411225725.2032862-7-robdclark@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230411225725.2032862-1-robdclark@gmail.com> References: <20230411225725.2032862-1-robdclark@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Rob Clark Add support to dump GEM stats to fdinfo. v2: Fix typos, change size units to match docs, use div_u64 v3: Do it in core Signed-off-by: Rob Clark Reviewed-by: Emil Velikov Reviewed-by: Daniel Vetter --- Documentation/gpu/drm-usage-stats.rst | 21 ++++++++ drivers/gpu/drm/drm_file.c | 76 +++++++++++++++++++++++++++ include/drm/drm_file.h | 1 + include/drm/drm_gem.h | 19 +++++++ 4 files changed, 117 insertions(+) diff --git a/Documentation/gpu/drm-usage-stats.rst b/Documentation/gpu/drm-usage-stats.rst index b46327356e80..b5e7802532ed 100644 --- a/Documentation/gpu/drm-usage-stats.rst +++ b/Documentation/gpu/drm-usage-stats.rst @@ -105,6 +105,27 @@ object belong to this client, in the respective memory region. Default unit shall be bytes with optional unit specifiers of 'KiB' or 'MiB' indicating kibi- or mebi-bytes. +- drm-shared-memory: [KiB|MiB] + +The total size of buffers that are shared with another file (ie. have more +than a single handle). + +- drm-private-memory: [KiB|MiB] + +The total size of buffers that are not shared with another file. + +- drm-resident-memory: [KiB|MiB] + +The total size of buffers that are resident in system memory. + +- drm-purgeable-memory: [KiB|MiB] + +The total size of buffers that are purgeable. + +- drm-active-memory: [KiB|MiB] + +The total size of buffers that are active on one or more rings. + - drm-cycles- Engine identifier string must be the same as the one specified in the diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index 37dfaa6be560..46fdd843bb3a 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -42,6 +42,7 @@ #include #include #include +#include #include #include "drm_crtc_internal.h" @@ -871,6 +872,79 @@ void drm_send_event(struct drm_device *dev, struct drm_pending_event *e) } EXPORT_SYMBOL(drm_send_event); +static void print_size(struct drm_printer *p, const char *stat, size_t sz) +{ + const char *units[] = {"", " KiB", " MiB"}; + unsigned u; + + for (u = 0; u < ARRAY_SIZE(units) - 1; u++) { + if (sz < SZ_1K) + break; + sz = div_u64(sz, SZ_1K); + } + + drm_printf(p, "%s:\t%zu%s\n", stat, sz, units[u]); +} + +static void print_memory_stats(struct drm_printer *p, struct drm_file *file) +{ + struct drm_gem_object *obj; + struct { + size_t shared; + size_t private; + size_t resident; + size_t purgeable; + size_t active; + } size = {0}; + bool has_status = false; + int id; + + spin_lock(&file->table_lock); + idr_for_each_entry (&file->object_idr, obj, id) { + enum drm_gem_object_status s = 0; + + if (obj->funcs && obj->funcs->status) { + s = obj->funcs->status(obj); + has_status = true; + } + + if (obj->handle_count > 1) { + size.shared += obj->size; + } else { + size.private += obj->size; + } + + if (s & DRM_GEM_OBJECT_RESIDENT) { + size.resident += obj->size; + } else { + /* If already purged or not yet backed by pages, don't + * count it as purgeable: + */ + s &= ~DRM_GEM_OBJECT_PURGEABLE; + } + + if (!dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true))) { + size.active += obj->size; + + /* If still active, don't count as purgeable: */ + s &= ~DRM_GEM_OBJECT_PURGEABLE; + } + + if (s & DRM_GEM_OBJECT_PURGEABLE) + size.purgeable += obj->size; + } + spin_unlock(&file->table_lock); + + print_size(p, "drm-shared-memory", size.shared); + print_size(p, "drm-private-memory", size.private); + print_size(p, "drm-active-memory", size.active); + + if (has_status) { + print_size(p, "drm-resident-memory", size.resident); + print_size(p, "drm-purgeable-memory", size.purgeable); + } +} + /** * drm_fop_show_fdinfo - helper for drm file fops * @seq_file: output stream @@ -904,6 +978,8 @@ void drm_fop_show_fdinfo(struct seq_file *m, struct file *f) if (dev->driver->show_fdinfo) dev->driver->show_fdinfo(&p, file); + + print_memory_stats(&p, file); } EXPORT_SYMBOL(drm_fop_show_fdinfo); diff --git a/include/drm/drm_file.h b/include/drm/drm_file.h index dfa995b787e1..e5b40084538f 100644 --- a/include/drm/drm_file.h +++ b/include/drm/drm_file.h @@ -41,6 +41,7 @@ struct dma_fence; struct drm_file; struct drm_device; +struct drm_printer; struct device; struct file; diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h index 189fd618ca65..213917bb6b11 100644 --- a/include/drm/drm_gem.h +++ b/include/drm/drm_gem.h @@ -42,6 +42,14 @@ struct iosys_map; struct drm_gem_object; +/** + * enum drm_gem_object_status - bitmask of object state for fdinfo reporting + */ +enum drm_gem_object_status { + DRM_GEM_OBJECT_RESIDENT = BIT(0), + DRM_GEM_OBJECT_PURGEABLE = BIT(1), +}; + /** * struct drm_gem_object_funcs - GEM object functions */ @@ -174,6 +182,17 @@ struct drm_gem_object_funcs { */ int (*evict)(struct drm_gem_object *obj); + /** + * @status: + * + * The optional status callback can return additional object state + * which determines which stats the object is counted against. The + * callback is called under table_lock. Racing against object status + * change is "harmless", and the callback can expect to not race + * against object destruction. + */ + enum drm_gem_object_status (*status)(struct drm_gem_object *obj); + /** * @vm_ops: *