From nobody Fri Sep 12 01:19:41 2025 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 4D728C001DB for ; Tue, 8 Aug 2023 22:22:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229875AbjHHWWy (ORCPT ); Tue, 8 Aug 2023 18:22:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229708AbjHHWWv (ORCPT ); Tue, 8 Aug 2023 18:22:51 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9767E10C0 for ; Tue, 8 Aug 2023 15:22:50 -0700 (PDT) Received: from localhost.localdomain (unknown [IPv6:2a02:8010:65b5:0:1ac0:4dff:feee:236a]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: alarumbe) by madras.collabora.co.uk (Postfix) with ESMTPSA id 30CF166071F7; Tue, 8 Aug 2023 23:22:49 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1691533369; bh=VWCWv3TF6qDjaauYLhA34kcdzVSNugilzQyUxtVWXX4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UH/RXcUK9/pOVCvakVoSWzoFiqvKMUQ/pMFDjWja3BohYJ9v5p1kXFwIuqS+fzfeo jXu5RjCk3H3HdmpMY5/yhGE6vB4pY2lBNnSpNM+bUBSCZwexsk0rPJFQUTREEeosOt PYD08tEceRK5GIBT0GahnidF5hG9cwGyXxaZvtlXzhHnHsBazb4R2uCzPz6cfVCKtZ 4sfV+UMTUkukz2lYNdlajzF33F9OKGbTF3w5biiF3nGNWPBKyQkMc3xtrql6agY3Rw Org3I/QO0aXsA7gxPdBuoR/VcjhhfYTYVKxl2b/XzG7x+LASPMNbnrIkiLLYm6oAmu 4Efj3q7HBC1Bw== From: =?UTF-8?q?Adri=C3=A1n=20Larumbe?= To: robh@kernel.org, steven.price@arm.com, airlied@gmail.com, daniel@ffwll.ch Cc: dri-devel@lists.freedesktop.org, kernel@collabora.com, linux-kernel@vger.kernel.org, adrian.larumbe@collabora.com Subject: [PATCH 2/2] drm/panfrost: Add drm memory stats display through fdinfo Date: Tue, 8 Aug 2023 23:22:39 +0100 Message-ID: <20230808222240.1016623-3-adrian.larumbe@collabora.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230808222240.1016623-1-adrian.larumbe@collabora.com> References: <20230808222240.1016623-1-adrian.larumbe@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For drm_show_memory_stats to produce a more accurate report, provide a new Panfrost DRM object callback that decides whether an object is resident in memory or eligible for purging. Signed-off-by: Adri=C3=A1n Larumbe --- drivers/gpu/drm/panfrost/panfrost_drv.c | 8 ++++++-- drivers/gpu/drm/panfrost/panfrost_gem.c | 16 ++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_gem.h | 1 + 3 files changed, 23 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panf= rost/panfrost_drv.c index 65fdc0e4c7cb..46e8e69479c0 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -441,11 +441,14 @@ static int panfrost_ioctl_madvise(struct drm_device *= dev, void *data, args->retained =3D drm_gem_shmem_madvise(&bo->base, args->madv); =20 if (args->retained) { - if (args->madv =3D=3D PANFROST_MADV_DONTNEED) + if (args->madv =3D=3D PANFROST_MADV_DONTNEED) { list_move_tail(&bo->base.madv_list, &pfdev->shrinker_list); - else if (args->madv =3D=3D PANFROST_MADV_WILLNEED) + bo->is_purgable =3D true; + } else if (args->madv =3D=3D PANFROST_MADV_WILLNEED) { list_del_init(&bo->base.madv_list); + bo->is_purgable =3D false; + } } =20 out_unlock_mappings: @@ -546,6 +549,7 @@ static void panfrost_show_fdinfo(struct drm_printer *p,= struct drm_file *file) =20 panfrost_gpu_show_fdinfo(pfdev, file->driver_priv, p); =20 + drm_show_memory_stats(p, file); } =20 static const struct file_operations panfrost_drm_driver_fops =3D { diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panf= rost/panfrost_gem.c index 3c812fbd126f..80ab1521a14e 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.c +++ b/drivers/gpu/drm/panfrost/panfrost_gem.c @@ -195,6 +195,21 @@ static int panfrost_gem_pin(struct drm_gem_object *obj) return drm_gem_shmem_pin(&bo->base); } =20 +static enum drm_gem_object_status panfrost_gem_status(struct drm_gem_objec= t *obj) +{ + struct panfrost_gem_object *bo =3D to_panfrost_bo(obj); + struct panfrost_device *pfdev =3D obj->dev->dev_private; + unsigned int res =3D 0; + + mutex_lock(&pfdev->shrinker_lock); + res |=3D (bo->is_purgable) ? DRM_GEM_OBJECT_PURGEABLE : 0; + mutex_unlock(&pfdev->shrinker_lock); + + res |=3D (bo->base.pages) ? DRM_GEM_OBJECT_RESIDENT : 0; + + return res; +} + static const struct drm_gem_object_funcs panfrost_gem_funcs =3D { .free =3D panfrost_gem_free_object, .open =3D panfrost_gem_open, @@ -206,6 +221,7 @@ static const struct drm_gem_object_funcs panfrost_gem_f= uncs =3D { .vmap =3D drm_gem_shmem_object_vmap, .vunmap =3D drm_gem_shmem_object_vunmap, .mmap =3D drm_gem_shmem_object_mmap, + .status =3D panfrost_gem_status, .vm_ops =3D &drm_gem_shmem_vm_ops, }; =20 diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.h b/drivers/gpu/drm/panf= rost/panfrost_gem.h index ad2877eeeccd..e06f7ceb8f73 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.h +++ b/drivers/gpu/drm/panfrost/panfrost_gem.h @@ -38,6 +38,7 @@ struct panfrost_gem_object { =20 bool noexec :1; bool is_heap :1; + bool is_purgable :1; }; =20 struct panfrost_gem_mapping { --=20 2.41.0