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fc488b5903
Currently we pin the GuC or HuC firmware image just before uploading.
Perma-pin during uC initialization instead and use the range reserved at
the top of the address space.
Moving the firmware resulted in needing to:
- use an additional pinning for the rsa signature which will be used
during HuC auth as addresses above GUC_GGTT_TOP do not map through GTT.
v2: Remove call to set to gtt domain
Do not restore fw gtt mapping unconditionally
Separate out pin/unpin functions and drop usage of pin/unpin
Use uc_fw init/fini functions to bind/unbind fw object
v3: Bind is only needed during xfer (Chris)
Remove attempts to bind outside of xfer (Chris)
Mark fw bind/unbind static
Signed-off-by: Fernando Pacheco <fernando.pacheco@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190419230015.18121-4-fernando.pacheco@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.