On Thu, 2017-12-21 at 16:32 -0800, Sohil Mehta wrote:
> From: Gayatri Kammela <gayatri.kamm...@intel.com>
>
> IOMMU internals states such as root and context can be exported to the
> userspace.
>
> Example of such dump in Kabylake:
> v5: Change to a SPDX license tag
> Fix seq_printf formatting
>
>
> +#define pr_fmt(fmt) "INTEL_IOMMU: " fmt
> +#include <linux/err.h>
> +#include <linux/io.h>
> +#include <linux/slab.h>
> +#include <linux/uaccess.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/debugfs.h>
> +#include <linux/pci.h>
> +#include <linux/iommu.h>
> +#include <linux/intel-iommu.h>
> +#include <linux/intel-svm.h>
> +#include <linux/dmar.h>
> +#include <linux/spinlock.h>
It might make sense to keep above ordered alphabetically.
> +static void root_tbl_entry_show(struct seq_file *m, struct
> intel_iommu *iommu,
> + u64 rtaddr_reg, bool ext, bool
> new_ext)
> +{
> + int bus;
> +
> + seq_printf(m, "\nIOMMU %s: %2s Root Table Addr:%llx\n",
> iommu->name,
> + ext ? "Extended" : "", rtaddr_reg);
Still leading '\n'...
--
Andy Shevchenko <andriy.shevche...@linux.intel.com>
Intel Finland Oy
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