ixEXP4 95 drivers/gpu/drm/amd/include/asic_reg/oss/oss_1_0_d.h #define ixEXP4 0x0044 ixEXP4 122 drivers/gpu/drm/amd/include/asic_reg/oss/oss_2_0_d.h #define ixEXP4 0x44 ixEXP4 191 drivers/gpu/drm/amd/include/asic_reg/oss/oss_3_0_d.h #define ixEXP4 0x44