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If there's no GuC firmware entry in the table and the user didn't pass an override path, the error message is very cryptic: xe will simply try to continue and then fail when submitting the default context: xe 0000:00:02.0: [drm:xe_pci_probe [xe]] XE_LUNARLAKE 64b0:0001 dgfx:0 gfx:Xe2_LPG (20.04) media:Xe2_LPM (20.00) display:no dma_m_s:46 tc:1 gscfi:0 ... xe: probe of 0000:00:02.0 failed with error -22 Add an explicit error message and bail out: xe 0000:00:02.0: [drm:xe_pci_probe [xe]] XE_LUNARLAKE 64b0:0001 dgfx:0 gfx:Xe2_LPG (20.04) media:Xe2_LPM (20.00) display:no dma_m_s:46 tc:1 gscfi:0 xe 0000:00:02.0: [drm] *ERROR* No GuC firmware defined for platform xe 0000:00:02.0: [drm] *ERROR* GuC init failed with -2 ... xe: probe of 0000:00:02.0 failed with error -2 Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Francois Dugast <francois.dugast@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240201224724.551130-3-lucas.demarchi@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.
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.