mmSEM_MAILBOX_BASE_IDX 257 drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_0_1_offset.h #define mmSEM_MAILBOX_BASE_IDX 0 mmSEM_MAILBOX_BASE_IDX 257 drivers/gpu/drm/amd/include/asic_reg/oss/osssys_4_0_offset.h #define mmSEM_MAILBOX_BASE_IDX 0 mmSEM_MAILBOX_BASE_IDX 269 drivers/gpu/drm/amd/include/asic_reg/oss/osssys_5_0_0_offset.h #define mmSEM_MAILBOX_BASE_IDX 0