b19dd74f39
info.rs: - Gen8 now has has_ddi/has_dp_aux: true (Broadwell uses DDI display engine) - Gen7+ now has has_gmbus: true (Ivy Bridge introduced GMBUS at 0xC5100) - Gen4-Gen7 pre-Gen8: num_ports=3 (3 display ports, not 4 DDI ports) - Added is_gen8_or_later() for PPGTT gate mod.rs: PPGTT gate extended from is_gen9_or_later() to is_gen8_or_later() Broadwell (Gen8) supports 48-bit PPGTT INTEL-DRIVER-FULL-IMPLEMENTATION-PLAN.md: comprehensive pre-Gen9 gap catalog FDI vs DDI register table for all generations Per-generation forcewake, power well, PLL, interrupt differences Implementation priority: P0 (Gen8 flags) done, P1 (FDI) documented