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Matt Roper ca630876aa drm/xe/migrate: Cap PTEs written by MI_STORE_DATA_IMM to 510
Although MI_STORE_DATA_IMM's "length" field is 10-bits, 0x3FE is
considered the largest legal value accepted.  Since that instruction
field is always encoded in (val-2) format, this translates to 0x400
dwords for the true maximum length of the instruction.  Subtracting the
instruction header (1 dword) and address (2 dwords), that leaves 0x3FD
dwords (i.e., 0x1FE qwords) for PTE values.

Bspec: 60246, 45753
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20240111220238.1467572-2-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
History 2024-01-12 09:09:06 -08:00
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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.