From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 40E02522F0A; Wed, 30 Sep 2026 17:46:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790790393; cv=none; b=HJtKAFcpcVj3FJ+f0c9h6EJTid841yJqy/oF9IL4lyGy4bbeAWSv41ZvdcqlSTiL5C/+IFD9QRl1ecrXKndVWN7TorCFtEcFDgh45kk1AHDO6cQNxnyNXyNkE6pV3cyDXOIN3gVdTvrmHZT5Av8+6/mBH7LzSoHxVH6auLlp9Cs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790790393; c=relaxed/simple; bh=/kpk+AOzBKYW9qebbucjcIfNSOX+MIibPy/1OjFzl3g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=dRBinbulNtPlup7LAdbUdvSBvJS+ZZFR7g+jIh12qcVaq4zI7pjc2Xvx4nGQUwulYruKDEkcTE1CwlVKL2ltSF9sCphN9wTRwS0XeNZwk2CKReBnF85xeah2ReZsdsFmKT1v83KaBrNdUuc9BIBHUxds+pTAnNGM3XnKEqTlfHM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YdgR2qt9; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="YdgR2qt9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9C5431F000FF; Wed, 30 Sep 2026 17:46:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790790392; bh=hRByjDrC7iX94x2E4omgiAEqodyt9BkuNu43DS7J0PA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=YdgR2qt9wVha0/FmFnZY8a9Z/1XPVSnjj/adkHP5b4auY+A5gA0cuXhEtX/h2cVCS 0FlLVXxcD6PaaXoCaOsjfbyhBn5nzFJ33OnGjkvJyNNq3neMQCItUzCTMjiIUdZ5az NNOSPXG5vY7iVclyNBeKpq3tdQr58RTAjggl73Ic= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yunxiang Li , =?UTF-8?q?Christian=20K=C3=B6nig?= , Sasha Levin Subject: [PATCH 6.12 812/877] drm: add drm_memory_stats_is_zero Date: Wed, 30 Sep 2026 17:28:43 +0200 Message-ID: <20260930152432.241789315@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152414.738996857@linuxfoundation.org> References: <20260930152414.738996857@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yunxiang Li [ Upstream commit fd265d9e0c3358e6b9fe244d8f5d2824fda1c0dc ] Add a helper to check if the memory stats is zero, this will be used to check for memory accounting errors. Signed-off-by: Yunxiang Li Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-2-Yunxiang.Li@amd.com Signed-off-by: Christian König Stable-dep-of: 636139603b99 ("drm/amdgpu: hold a runtime PM reference for P2P dma-buf attachments") Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/drm_file.c | 10 ++++++++++ include/drm/drm_file.h | 1 + 2 files changed, 11 insertions(+) --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -840,6 +840,16 @@ static void print_size(struct drm_printe drm_printf(p, "drm-%s-%s:\t%llu%s\n", stat, region, sz, units[u]); } +int drm_memory_stats_is_zero(const struct drm_memory_stats *stats) +{ + return (stats->shared == 0 && + stats->private == 0 && + stats->resident == 0 && + stats->purgeable == 0 && + stats->active == 0); +} +EXPORT_SYMBOL(drm_memory_stats_is_zero); + /** * drm_print_memory_stats - A helper to print memory stats * @p: The printer to print output to --- a/include/drm/drm_file.h +++ b/include/drm/drm_file.h @@ -485,6 +485,7 @@ struct drm_memory_stats { enum drm_gem_object_status; +int drm_memory_stats_is_zero(const struct drm_memory_stats *stats); void drm_print_memory_stats(struct drm_printer *p, const struct drm_memory_stats *stats, enum drm_gem_object_status supported_status,