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As per recommendation in the workarounds: WA_22019338487 There is an issue with accessing Stolen memory pages due a hardware limitation. Limit the usage of stolen memory for fbdev for LNL+. Don't use BIOS FB from stolen on LNL+ and assign the same from system memory. v2: Corrected the WA Number, limited WA to LNL and Adopted XE_WA framework as suggested by Lucas and Matt. v3: Introduced the waxxx_display to implement display side of WA changes on Lunarlake. Used xe_root_mmio_gt and avoid the for loop (Suggested by Lucas) v4: Fixed some nits (Luca) Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240717082252.3875909-1-uma.shankar@intel.com |
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