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 638FB3BE63F; Sat, 17 Oct 2026 17:30:14 +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=1792258215; cv=none; b=L9JrZPWZPzKjEKaGHagNKBRZ79uOjeYLN8THIoDJ4kxsFAhQaZs/n3ZkB+1R4JQS+SBDqz50cArCX7KHClGiKT/t8dXagojPjDE4CJj3HoQfVnLO+wyEkBl8/Ym67eKgOBNmLAU3tIKsANLaVvbIaD7yViVHUfOz4/j+JhLJgwM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792258215; c=relaxed/simple; bh=+ADUJmb5Njd3ws0KHNFJKhaUPH7vG4+avaqRJpo+AN8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=IVl+29t4GlJ6QtH+GS/h3wz3pGLXP3+JXmpDCNfhb/hBbTO3eg/8E4gBGWjVLyR3b39upfmT3cPA7+3IwVRcofuDwlSJwglQAZRmxvp84+5Q5S8/PDCON0zE7CMQELmXcmZkDQLfB4nWcYWccBRr0uOidh+DQHBtejjpxU332a0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=x3s51+ou; 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="x3s51+ou" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B16591F000C4; Sat, 17 Oct 2026 17:30:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1792258214; bh=7tSj2QG6yYQb8BFgZponU6iR6zOXERWPl+bwlDiJo2U=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=x3s51+ouq/SpYUadegT7ZgzCDcIoUBa6I+MoaY0o4mjFkvXq1XG2OSSvS3QGhNZae uq7WvCywgcPCkOeDfEgJ9CC16st+vg93u/YIs9oJolTYzMQKUhrQIz/IUEzExdgvOz oTNl5TRvt9ydCFeQKiKA8sGzLyFTtalNIkEWqtNc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Christian=20K=C3=B6nig?= , Mangesh Gadre , Alex Deucher , Arunpravin Paneer Selvam , Sasha Levin Subject: [PATCH 6.6 0811/1674] drm/amdgpu: hide VRAM sysfs attributes on GPUs without VRAM Date: Sat, 17 Oct 2026 17:51:23 +0200 Message-ID: <20261017160451.939746001@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261017160431.119607952@linuxfoundation.org> References: <20261017160431.119607952@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Christian König [ Upstream commit 33cc891b56b93cad1a83263eaf2e417436f70c82 ] Otherwise accessing them can cause a crash. Signed-off-by: Christian König Tested-by: Mangesh Gadre Acked-by: Alex Deucher Reviewed-by: Arunpravin Paneer Selvam Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 403a7c976dfa2..a592f80e940ea 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -223,6 +223,9 @@ static umode_t amdgpu_vram_attrs_is_visible(struct kobject *kobj, !adev->gmc.vram_vendor) return 0; + if (!ttm_resource_manager_used(&adev->mman.vram_mgr.manager)) + return 0; + return attr->mode; } -- 2.53.0