From patchwork Fri Sep 29 18:14:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Adri=C3=A1n_Larumbe?= X-Patchwork-Id: 13404754 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 E9B7DE728D6 for ; Fri, 29 Sep 2023 18:16:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232748AbjI2SQi (ORCPT ); Fri, 29 Sep 2023 14:16:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57980 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233051AbjI2SQf (ORCPT ); Fri, 29 Sep 2023 14:16:35 -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 D6A6F1A4; Fri, 29 Sep 2023 11:16:31 -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 4EB986607347; Fri, 29 Sep 2023 19:16:30 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1696011390; bh=oQRC2/7kakFVXnxc/dlMxlyz1zqib0bHYDtG5iDdAHo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iIRdY2zj8T9sL8uHfyesDgY45cvFOQzztvdf8mEkeZCMCqMG2aiKe+RuDhpooKUMb 1/nNGJBQN38yP/RLpdqIWXM4ngFj4850YCTEl0JwmOeoi+87il8wBXEttXi00Gplgn vxvLVMo0qIoVLklHWeaIVBYJD4UTFypTJt2ey7iJCVvto9lbecGHIbHrPbmK/elbYH sHtlVteqSpnqVV/7dvj6Yn3S5SuoqGHsZUDS1W0yVafvDKIioL6NB+u7QIL1YxulEr dAx4umxU4K9K4v1+zicThspOBMq+yhTep4lRLJnXT4GowJub1MLyEt0AZ7Nad2ZeeS XSScA1DepKBMQ== From: =?utf-8?q?Adri=C3=A1n_Larumbe?= To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch, robdclark@gmail.com, quic_abhinavk@quicinc.com, dmitry.baryshkov@linaro.org, sean@poorly.run, marijn.suijten@somainline.org, robh@kernel.org, steven.price@arm.com Cc: adrian.larumbe@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, healych@amazon.com, kernel@collabora.com, tvrtko.ursulin@linux.intel.com, boris.brezillon@collabora.com, AngeloGioacchino Del Regno Subject: [PATCH v8 3/5] drm/panfrost: Add fdinfo support for memory stats Date: Fri, 29 Sep 2023 19:14:29 +0100 Message-ID: <20230929181616.2769345-4-adrian.larumbe@collabora.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230929181616.2769345-1-adrian.larumbe@collabora.com> References: <20230929181616.2769345-1-adrian.larumbe@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org A new DRM GEM object function is added so that drm_show_memory_stats can provide more accurate memory usage numbers. Ideally, in panfrost_gem_status, the BO's purgeable flag would be checked after locking the driver's shrinker mutex, but drm_show_memory_stats takes over the drm file's object handle database spinlock, so there's potential for a race condition here. Signed-off-by: Adrián Larumbe Reviewed-by: Boris Brezillon Reviewed-by: Steven Price Reviewed-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/panfrost/panfrost_drv.c | 2 ++ drivers/gpu/drm/panfrost/panfrost_gem.c | 15 +++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index 97e5bc4a82c8..b834777b409b 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -568,6 +568,8 @@ static void panfrost_show_fdinfo(struct drm_printer *p, struct drm_file *file) struct panfrost_device *pfdev = dev->dev_private; panfrost_gpu_show_fdinfo(pfdev, file->driver_priv, p); + + drm_show_memory_stats(p, file); } static const struct file_operations panfrost_drm_driver_fops = { diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c index 3c812fbd126f..de238b71b321 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.c +++ b/drivers/gpu/drm/panfrost/panfrost_gem.c @@ -195,6 +195,20 @@ static int panfrost_gem_pin(struct drm_gem_object *obj) return drm_gem_shmem_pin(&bo->base); } +static enum drm_gem_object_status panfrost_gem_status(struct drm_gem_object *obj) +{ + struct panfrost_gem_object *bo = to_panfrost_bo(obj); + enum drm_gem_object_status res = 0; + + if (bo->base.pages) + res |= DRM_GEM_OBJECT_RESIDENT; + + if (bo->base.madv == PANFROST_MADV_DONTNEED) + res |= DRM_GEM_OBJECT_PURGEABLE; + + return res; +} + static const struct drm_gem_object_funcs panfrost_gem_funcs = { .free = panfrost_gem_free_object, .open = panfrost_gem_open, @@ -206,6 +220,7 @@ static const struct drm_gem_object_funcs panfrost_gem_funcs = { .vmap = drm_gem_shmem_object_vmap, .vunmap = drm_gem_shmem_object_vunmap, .mmap = drm_gem_shmem_object_mmap, + .status = panfrost_gem_status, .vm_ops = &drm_gem_shmem_vm_ops, };