Message ID | 1520260166-29387-3-git-send-email-nipun.gupta@nxp.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show
Return-Path: <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3zwBRc5nrCz9sgM for <patchwork-incoming@ozlabs.org>; Tue, 6 Mar 2018 07:32:44 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=nxp.com header.i=@nxp.com header.b="OT37E+HH"; dkim-atps=neutral Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3zwBRc47JyzDrCY for <patchwork-incoming@ozlabs.org>; Tue, 6 Mar 2018 07:32:44 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=nxp.com Authentication-Results: lists.ozlabs.org; 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Series |
Support for fsl-mc bus and its devices in SMMU
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expand
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diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index 5c36a8b..cc2fb9c 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -24,6 +24,7 @@ #include <linux/of_iommu.h> #include <linux/of_pci.h> #include <linux/slab.h> +#include <linux/fsl/mc.h> #define NO_IOMMU 1 @@ -160,6 +161,26 @@ static int of_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) return err; } +static int +of_fsl_mc_iommu_init(struct fsl_mc_device *mc_dev, + struct device_node *master_np) +{ + struct of_phandle_args iommu_spec; + int err; + + iommu_spec.np = of_parse_phandle(master_np, "iommu-parent", 0); + if (!iommu_spec.np) + return NO_IOMMU; + + iommu_spec.args[0] = mc_dev->icid; + iommu_spec.args_count = 1; + + err = of_iommu_xlate(&mc_dev->dev, &iommu_spec); + of_node_put(iommu_spec.np); + + return err; +} + const struct iommu_ops *of_iommu_configure(struct device *dev, struct device_node *master_np) { @@ -191,6 +212,8 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, err = pci_for_each_dma_alias(to_pci_dev(dev), of_pci_iommu_init, &info); + } else if (dev_is_fsl_mc(dev)) { + err = of_fsl_mc_iommu_init(to_fsl_mc_device(dev), master_np); } else { struct of_phandle_args iommu_spec; int idx = 0;
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com> --- drivers/iommu/of_iommu.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+)