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486b2ef276
The only possible 64-bit register writes in the driver come from the highly questionable MMIO ioctl. That ioctl's register write support only operates for userspace running as root and cannot be used by any real userspace; it exists solely to support the "xe_reg" debug tool in IGT. Since the spec indicates that hardware does not officially support 64-bit register accesses, there's no reason to allow such 64-bit writes, even for debugging. Bspec: 60027 Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://lore.kernel.org/r/20230823003312.1356779-4-matthew.d.roper@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> |
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.