From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B03D82989A2; Fri, 21 Nov 2025 13:15:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763730916; cv=none; b=sp1O6/sDncKVg6paye04fmDvlYMPbQPBmwvIn/NATh5f7ayhH6l4+MbxWUQQ8q+eg+iOhz3a2q5WGjD8TpNcvjzzi81L0PXKgJ9yaZjrn8y1jSObyDlq7ISRlGcAVkYylvxiSEMBS0h07Z9xEkP0E9J7/I+qrn3tHibu5WV7ggw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763730916; c=relaxed/simple; bh=WfPc+S4EWYIBQhZ17M33wGFOm2vMjgTCgUMV0CU/1w4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=WDDssi1oRZHXMdYh0ENj7uW7IE5e+zTdCO+yvUPCWkiZo6DTZWu02dWgEJeuLtt7di0QroG14gm9KsEusdMVDb3eSsk9AL2zj2a8naumrQypCW6HqlgPcsrpIBo7OpMsvhGMORlRMD/E0W/tZR4w2gHaylRceIfJqD2WZxCwHjM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=hhIVNjBF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="hhIVNjBF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 20F2CC4CEFB; Fri, 21 Nov 2025 13:15:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1763730916; bh=WfPc+S4EWYIBQhZ17M33wGFOm2vMjgTCgUMV0CU/1w4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hhIVNjBFN1jEqVSlkjB/YObqEIqGvFbkQFgVH1oVfBl7moIplm/YYgtENNKkeLQMZ z8tqpLHCV66vmeElIqBA8Iv9JpCCUlABcJR4rINWP1DKM5jK5JZlFjDYYr+uBdxAKH kZMdW1tuNV436P0NaDLfSeJI17vg3fKvG8w1vdw8= 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 6.17 027/247] drm/amdgpu: hide VRAM sysfs attributes on GPUs without VRAM Date: Fri, 21 Nov 2025 14:09:34 +0100 Message-ID: <20251121130155.579249466@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251121130154.587656062@linuxfoundation.org> References: <20251121130154.587656062@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 6.17-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 78f9e86ccc099..832ab87eb3451 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -234,6 +234,9 @@ 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; } -- 2.51.0