GEN8_RING_PDP_LDW
I915_READ(GEN8_RING_PDP_LDW(engine, i));
*cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(engine, i));
CTX_REG(regs, CTX_PDP3_LDW, GEN8_RING_PDP_LDW(engine, 3), 0);
CTX_REG(regs, CTX_PDP2_LDW, GEN8_RING_PDP_LDW(engine, 2), 0);
CTX_REG(regs, CTX_PDP1_LDW, GEN8_RING_PDP_LDW(engine, 1), 0);
CTX_REG(regs, CTX_PDP0_LDW, GEN8_RING_PDP_LDW(engine, 0), 0);