On Fri, 4 Jul 2025, Michal Orzel wrote: > Harden the code by panicing if direct map is too small for current memory > layout taking into account possible PDX compression. Otherwise the assert > is observed: > Assertion '(mfn_to_pdx(maddr_to_mfn(ma)) - directmap_base_pdx) < > (DIRECTMAP_SIZE >> PAGE_SHIFT)' failed at ./arch/arm/include/asm/mmu/mm.h:72 > > At the moment, we don't set max_pdx denoting maximum usable PDX which > should be based on max_page. Consolidate setting of max_page and max_pdx > in init_pdx() for both arm32 and arm64. max_pdx will be used in the > future to set up frametable mappings respecting the PDX grouping. > > Signed-off-by: Michal Orzel <michal.or...@amd.com>
Reviewed-by: Stefano Stabellini <sstabell...@kernel.org>
