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 11EC52609EE; Fri, 15 May 2026 16:25:30 +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=1778862330; cv=none; b=Ifad5VCQ462cnJXFuf4sbGmDkav6E//iCB/NFvryw7mIkHUI3qdjDWvdNMlYcCPoLNhtaW1hSy6CkjqF2hjlm832w8GuBRKDwM96eWD/zwjZmOSqZ5VoCBf/Hgi2TjUcY4symwQbgTdYV9CZeAdC9vK4ODRFv5oHIBGc9X0Jm88= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778862330; c=relaxed/simple; bh=BnlkmxlQm/B8roJr2aO6i3SVsnhxeARUqCgr9Oyvk2E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=EqrsDxj7dQqvwbLvvj+lM5Z6YFEiFGAWJbwog11XWKE0fGDP3THCu8Ex3kGXtaDKhHwwl0Rt8zSG+mRzHfBpGKS+9VvwQSP116Ci6LCgF2/jGXA1Tw9a9DkrK7yqeyrlNw+5047T9enCXgSXAe7jtrZJgT0YB2zl2lkLpyKyy+0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=l81+KJTL; 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="l81+KJTL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B381C2BCB0; Fri, 15 May 2026 16:25:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778862330; bh=BnlkmxlQm/B8roJr2aO6i3SVsnhxeARUqCgr9Oyvk2E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=l81+KJTLDa57adtBfrzJMVe0SBnhafEao2rvNA7HqJPgSUdxfsbgpxixS/4+2l9br KeleFeuYzGcJ0u0IyJl7ukmvbq9sMf2QZ4W4YYD/6e9WZZV/aLRD/XvMuTZm31QHMJ u6llOChxQQ9oGK32IizSqtB1MVrpF9ILjLTWFrac= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Prike Liang , =?UTF-8?q?Christian=20K=C3=B6nig?= , Alex Deucher Subject: [PATCH 6.18 152/188] drm/amdgpu: validate the flush_gpu_tlb_pasid() Date: Fri, 15 May 2026 17:49:29 +0200 Message-ID: <20260515154700.621875793@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260515154657.309489048@linuxfoundation.org> References: <20260515154657.309489048@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Prike Liang commit f4db9913e4d3dabe9ff3ea6178f2c1bc286012b8 upstream. Validate flush_gpu_tlb_pasid() availability before flushing tlb. Signed-off-by: Prike Liang Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -737,6 +737,10 @@ int amdgpu_gmc_flush_gpu_tlb_pasid(struc return 0; if (!adev->gmc.flush_pasid_uses_kiq || !ring->sched.ready) { + + if (!adev->gmc.gmc_funcs->flush_gpu_tlb_pasid) + return 0; + if (adev->gmc.flush_tlb_needs_extra_type_2) adev->gmc.gmc_funcs->flush_gpu_tlb_pasid(adev, pasid, 2, all_hub,