ixPB1_PIF_PWRDOWN_3  255 drivers/gpu/drm/amd/include/asic_reg/bif/bif_3_0_d.h #define ixPB1_PIF_PWRDOWN_3 0x0018
ixPB1_PIF_PWRDOWN_3  850 drivers/gpu/drm/amd/include/asic_reg/bif/bif_4_1_d.h #define ixPB1_PIF_PWRDOWN_3                                                     0x2100018