GFX_STATE_OPCODE
(XE_INSTR_GFX_STATE | REG_FIELD_PREP(GFX_STATE_OPCODE, opcode))
u32 opcode = REG_FIELD_GET(GFX_STATE_OPCODE, *dw);
switch (*dw & (XE_INSTR_GFX_STATE | GFX_STATE_OPCODE)) {