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In commit4502e9ec82("drm/i915/uc: Unify firmware loading") we stopped converting errors detected during firmware transfer into -EAGAIN and this indirectly killed our workarounds for Gen9 GuC. Reactivate those workarounds by looking for actual -ETIMEDOUT error. Testcase: igt@drv_selftest@live_hangcheck Reported-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> References: commit4502e9ec82("drm/i915/uc: Unify firmware loading") Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20181016085931.23532-1-michal.wajdeczko@intel.com
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.