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 746E51D0412; Wed, 2 Oct 2024 13:44:13 +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=1727876653; cv=none; b=ElNVYHFEL8FOvj3mUck8pDoB5fnxyd47t+/AzQCNEPrGuazZphT72CkhGy80rcEg+T4nx3M0cd0VgG2nCZsYor+9bNgJnYKkAGu79FIlX4amBiasXL0Vkhih6Hl+Vt9FURMDCM9ndy+7PuR5BIFbOv/lffKqIIwzGK2wtAhln0U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727876653; c=relaxed/simple; bh=1WOv6excxy63ntWVUC9QNp1Q1eT+rGJlzGJK1Ho3OT0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=sUSxUmvI2xe8ARXhM0jNujXs+6SOEmQ1s5SqS13zsdMuUpTCmY9EeG4cfl3+e2jRZWOD8JjH55Ph4/U2S1PhjyOxhy0YaXhzZhWCNF8xUmMM1h2AWKSqjc5M7C6bffrgds/obEAUPP58aLub6nTz8Gjky7wItxcld+zAVHgr2PM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ZnI2LpDU; 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="ZnI2LpDU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F1D61C4CEC5; Wed, 2 Oct 2024 13:44:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1727876653; bh=1WOv6excxy63ntWVUC9QNp1Q1eT+rGJlzGJK1Ho3OT0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZnI2LpDUmbJ1H8yr9kKatwYrwCs2mPg7YOUqyAu+0NQLv9oEIoOfP4crdVvpQ13tR Sqi2icYAo8O8b1vF6hqgDl4L6C/41WGPEDjtY+pWCMNGlwDOc3LCrBPJesoMfb5nde T6YE6JAISdXPtkTLNSPGofPQfS/KUcxhjnVbocS0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Richard Zhu , Frank Li , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Manivannan Sadhasivam , Jason Liu Subject: [PATCH 6.11 517/695] PCI: imx6: Fix i.MX8MP PCIe EPs occasional failure to trigger MSI Date: Wed, 2 Oct 2024 14:58:35 +0200 Message-ID: <20241002125843.121293269@linuxfoundation.org> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20241002125822.467776898@linuxfoundation.org> References: <20241002125822.467776898@linuxfoundation.org> User-Agent: quilt/0.67 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 6.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: Richard Zhu commit 5cb3aa92c7cf182940ae575c3f450d3708af087c upstream. Correct occasional MSI triggering failures in i.MX8MP PCIe EP by applying the correct hardware outbound alignment requirement. The i.MX platform has a restriction about outbound address translation. The pci-epc-mem uses page_size to manage it. Set the correct page_size for i.MX platform to meet the hardware requirement, which is the same as inbound address alignment. Thus, align it with epc_features::align. Fixes: 1bd0d43dcf3b ("PCI: imx6: Clean up addr_space retrieval code") Link: https://lore.kernel.org/linux-pci/20240729-pci2_upstream-v8-2-b68ee5ef2b4d@nxp.com Signed-off-by: Richard Zhu Signed-off-by: Frank Li [kwilczynski: commit log] Signed-off-by: Krzysztof Wilczyński Reviewed-by: Manivannan Sadhasivam Acked-by: Jason Liu Cc: # 6.9+ Signed-off-by: Greg Kroah-Hartman --- drivers/pci/controller/dwc/pci-imx6.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -1114,6 +1114,8 @@ static int imx6_add_pcie_ep(struct imx6_ if (imx6_check_flag(imx6_pcie, IMX6_PCIE_FLAG_SUPPORT_64BIT)) dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); + ep->page_size = imx6_pcie->drvdata->epc_features->align; + ret = dw_pcie_ep_init(ep); if (ret) { dev_err(dev, "failed to initialize endpoint\n");