From 68a17f0be6feb8de1f5e26b93f49791031374c4c Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 9 Aug 2017 16:36:00 +0200 Subject: iommu/pamu: Add support for generic iommu-device This patch adds a global iommu-handle to the pamu driver and initializes it at probe time. Also link devices added to the iommu to this handle. Signed-off-by: Joerg Roedel --- drivers/iommu/fsl_pamu.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/iommu/fsl_pamu.c') diff --git a/drivers/iommu/fsl_pamu.c b/drivers/iommu/fsl_pamu.c index 9ee8e9e161f5..9238a85de53e 100644 --- a/drivers/iommu/fsl_pamu.c +++ b/drivers/iommu/fsl_pamu.c @@ -44,6 +44,8 @@ static struct paace *spaact; static bool probed; /* Has PAMU been probed? */ +struct iommu_device pamu_iommu; /* IOMMU core code handle */ + /* * Table for matching compatible strings, for device tree * guts node, for QorIQ SOCs. @@ -1154,6 +1156,18 @@ static int fsl_pamu_probe(struct platform_device *pdev) if (ret) goto error_genpool; + ret = iommu_device_sysfs_add(&pamu_iommu, dev, NULL, "iommu0"); + if (ret) + goto error_genpool; + + iommu_device_set_ops(&pamu_iommu, &fsl_pamu_ops); + + ret = iommu_device_register(&pamu_iommu); + if (ret) { + dev_err(dev, "Can't register iommu device\n"); + goto error_sysfs; + } + pamubypenr = in_be32(&guts_regs->pamubypenr); for (pamu_reg_off = 0, pamu_counter = 0x80000000; pamu_reg_off < size; @@ -1181,6 +1195,9 @@ static int fsl_pamu_probe(struct platform_device *pdev) return 0; +error_sysfs: + iommu_device_sysfs_remove(&pamu_iommu); + error_genpool: gen_pool_destroy(spaace_pool); -- cgit v1.2.3