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 AE7BC1ED4F for ; Tue, 25 Jul 2023 11:47:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 30C2DC433C7; Tue, 25 Jul 2023 11:47:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690285670; bh=6vvyRgdHC2V15qlgNfNBntPyk86AxBSn2DGRNCnUqkM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wk4GCzKexIscK8Wz63UKeOW2srEK5Oo1uEGRN1HYZwLt0j+qutLaU+6LVrweUEPsy LQjiSWi5MKPgXHY8d0kNAt5d+GjgSpp2cI8Yfww7++6zRvvIXF4ekwIphDjZs2kC4l TTm+jwq/NAoGg4twSbup+ncZ+9RAIs4JfgmA6Wfo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Damien Le Moal , Rick Wertenbroek , Lorenzo Pieralisi Subject: [PATCH 5.4 249/313] PCI: rockchip: Set address alignment for endpoint mode Date: Tue, 25 Jul 2023 12:46:42 +0200 Message-ID: <20230725104531.844643975@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230725104521.167250627@linuxfoundation.org> References: <20230725104521.167250627@linuxfoundation.org> User-Agent: quilt/0.67 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 From: Damien Le Moal commit 7e6689b34a815bd379dfdbe9855d36f395ef056c upstream. The address translation unit of the rockchip EP controller does not use the lower 8 bits of a PCIe-space address to map local memory. Thus we must set the align feature field to 256 to let the user know about this constraint. Link: https://lore.kernel.org/r/20230418074700.1083505-12-rick.wertenbroek@gmail.com Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller") Signed-off-by: Damien Le Moal Signed-off-by: Rick Wertenbroek Signed-off-by: Lorenzo Pieralisi Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/pci/controller/pcie-rockchip-ep.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/pci/controller/pcie-rockchip-ep.c +++ b/drivers/pci/controller/pcie-rockchip-ep.c @@ -484,6 +484,7 @@ static const struct pci_epc_features roc .linkup_notifier = false, .msi_capable = true, .msix_capable = false, + .align = 256, }; static const struct pci_epc_features*