From patchwork Mon Apr 10 21:06:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 672382 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 53444C77B6F for ; Mon, 10 Apr 2023 21:06:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229640AbjDJVGY (ORCPT ); Mon, 10 Apr 2023 17:06:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230071AbjDJVGX (ORCPT ); Mon, 10 Apr 2023 17:06:23 -0400 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 370871737; Mon, 10 Apr 2023 14:06:22 -0700 (PDT) Received: by mail-pj1-x1034.google.com with SMTP id j8so4152087pjy.4; Mon, 10 Apr 2023 14:06:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1681160781; 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=PJFK/82i55S3LMJhngVaMIQtHLPKCOXYIQAVhENxSX4=; b=iQ1YcGademZken7tt39Vxwt10Q+8aCRwzy9R1BvI2zLub/OEjldjGNyD8wjrxIK14d C1Nipbmugr14pmM1yuk+yn7B5j7cWCilIr/gnf95raKNcnvyxasiDe6xKvcx9zho1H31 Dhwnxoo47lY3KdBWBTBMJjqdBeo0K1XA1dYLozfXnoheJPlfBlUy4rytViAgQ7gqBy8g g/EaDX8ZuCd3VDCnsaT3VJr3nfCtqHt8Fzxkaq57G234PjoOOQiIgZOPoU3blqZY50Cn 2m5fOkdqw3WQ1j3OTvSU6Xh1YhluZNhyLcuhKDEfl5UvhWtTmAHlmGwASBkLSD5TyorI SJHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1681160781; 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=PJFK/82i55S3LMJhngVaMIQtHLPKCOXYIQAVhENxSX4=; b=TYinDpFDAWy0tTl5QGXLJv7C7c1Ha6XoJpbRXX63phkiHDq/j2RJS9VrUkV1bMFvuo npSZ6Ls6QViwQcesnsy7Ghj3OLXW6NYWbrVyxZMJd9ega6QAbTaXo2HQqJxubHb42U+Z nyt1EBRRvgCCx0jrZ+k81UqkJkuxFZgiVHU2tXuXAXlXmNiQxJjdVLKcqXaDJnEE3IUi HEedwMgu9F9aKSlK6t/7++GdBV8oRWPqICsyxRfjHdYEUx2oMjLxjZuYehjzhiQDc/iR L84JuG3Gnx1KgT4+JyHTXbrim4mU4Q3f1R4r6ESJdm3CMS+oFMdXvOc24wLb8izqcL7B KBOg== X-Gm-Message-State: AAQBX9d1sMeTpIeIT/r1EaFH3w8PvK1w18xElOe5unJ10h/EWOx8k6QM E9EuIRzUTccSnZwR3sdTfmQ= X-Google-Smtp-Source: AKy350amaaLhS95M7Dkn5QyPjiWDMhBzzAAuXASGjiYpVy3PCNTBkyN0n8dOQhViJMNf3n/OVhcRHA== X-Received: by 2002:a17:90b:1b4c:b0:237:24eb:99d8 with SMTP id nv12-20020a17090b1b4c00b0023724eb99d8mr14642142pjb.19.1681160781506; Mon, 10 Apr 2023 14:06:21 -0700 (PDT) Received: from localhost ([2a00:79e1:abd:4a00:61b:48ed:72ab:435b]) by smtp.gmail.com with ESMTPSA id iy18-20020a170903131200b001a644662ee0sm2029320plb.18.2023.04.10.14.06.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Apr 2023 14:06:21 -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 v2 1/2] drm: Add fdinfo memory stats Date: Mon, 10 Apr 2023 14:06:06 -0700 Message-Id: <20230410210608.1873968-2-robdclark@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230410210608.1873968-1-robdclark@gmail.com> References: <20230410210608.1873968-1-robdclark@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Rob Clark Add a helper to dump memory stats to fdinfo. For the things the drm core isn't aware of, use a callback. v2: Fix typos, change size units to match docs, use div_u64 Signed-off-by: Rob Clark Reviewed-by: Emil Velikov --- Documentation/gpu/drm-usage-stats.rst | 21 +++++++ drivers/gpu/drm/drm_file.c | 79 +++++++++++++++++++++++++++ include/drm/drm_file.h | 10 ++++ 3 files changed, 110 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 a51ff8cee049..085b01842a87 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" @@ -868,6 +869,84 @@ 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]); +} + +/** + * drm_print_memory_stats - Helper to print standard fdinfo memory stats + * @file: the DRM file + * @p: the printer to print output to + * @status: callback to get driver tracked object status + * + * Helper to iterate over GEM objects with a handle allocated in the specified + * file. 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. + */ +void drm_print_memory_stats(struct drm_file *file, struct drm_printer *p, + enum drm_gem_object_status (*status)(struct drm_gem_object *)) +{ + struct drm_gem_object *obj; + struct { + size_t shared; + size_t private; + size_t resident; + size_t purgeable; + size_t active; + } size = {0}; + int id; + + spin_lock(&file->table_lock); + idr_for_each_entry (&file->object_idr, obj, id) { + enum drm_gem_object_status s = 0; + + if (status) + s = status(obj); + + if (obj->handle_count > 1) { + size.shared += obj->size; + } else { + size.private += obj->size; + } + + if (s & DRM_GEM_OBJECT_RESIDENT) { + size.resident += obj->size; + s &= ~DRM_GEM_OBJECT_PURGEABLE; + } + + if (s & DRM_GEM_OBJECT_ACTIVE) { + size.active += obj->size; + 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); + + if (status) { + print_size(p, "drm-resident-memory", size.resident); + print_size(p, "drm-purgeable-memory", size.purgeable); + print_size(p, "drm-active-memory", size.active); + } +} +EXPORT_SYMBOL(drm_print_memory_stats); + /** * mock_drm_getfile - Create a new struct file for the drm device * @minor: drm minor to wrap (e.g. #drm_device.primary) diff --git a/include/drm/drm_file.h b/include/drm/drm_file.h index 0d1f853092ab..7bd8a1374f39 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; @@ -438,6 +439,15 @@ void drm_send_event_timestamp_locked(struct drm_device *dev, struct drm_pending_event *e, ktime_t timestamp); +enum drm_gem_object_status { + DRM_GEM_OBJECT_RESIDENT = BIT(0), + DRM_GEM_OBJECT_PURGEABLE = BIT(1), + DRM_GEM_OBJECT_ACTIVE = BIT(2), +}; + +void drm_print_memory_stats(struct drm_file *file, struct drm_printer *p, + enum drm_gem_object_status (*status)(struct drm_gem_object *)); + struct file *mock_drm_getfile(struct drm_minor *minor, unsigned int flags); #endif /* _DRM_FILE_H_ */