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| author | Joerg Roedel <jroedel@suse.de> | 2017-08-09 16:36:00 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-08-15 13:59:34 +0200 |
| commit | 68a17f0be6feb8de1f5e26b93f49791031374c4c (patch) | |
| tree | fa1f306ea49d1dd9542575fca68921bd5fae8cae /drivers/iommu/fsl_pamu.c | |
| parent | iommu/pamu: WARN when fsl_pamu_probe() is called more than once (diff) | |
| download | linux-68a17f0be6feb8de1f5e26b93f49791031374c4c.tar.xz linux-68a17f0be6feb8de1f5e26b93f49791031374c4c.zip | |
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 <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/fsl_pamu.c')
| -rw-r--r-- | drivers/iommu/fsl_pamu.c | 17 |
1 files changed, 17 insertions, 0 deletions
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); |