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/Linux-v6.6/arch/powerpc/platforms/pseries/
Diommu.c1262 bool default_win_removed = false, direct_mapping = false; in enable_ddw() local
1274 direct_mapping = (len >= max_ram_len); in enable_ddw()
1387 direct_mapping = !default_win_removed || in enable_ddw()
1390 win_name = direct_mapping ? DIRECT64_PROPNAME : DMA64_PROPNAME; in enable_ddw()
1420 if (direct_mapping) { in enable_ddw()
1517 if (pmem_present && direct_mapping && len == max_ram_len) in enable_ddw()
1520 return direct_mapping; in enable_ddw()