GEN6_PMIIR
i915_reg_t reg = GRAPHICS_VER(gt->i915) >= 8 ? GEN8_GT_IIR(2) : GEN6_PMIIR;
GEN6_PMIIR)
pm_iir = intel_uncore_read(uncore, GEN6_PMIIR);
pm_iir = intel_uncore_read(&dev_priv->uncore, GEN6_PMIIR);
intel_uncore_write(&dev_priv->uncore, GEN6_PMIIR, pm_iir);
u32 pm_iir = raw_reg_read(regs, GEN6_PMIIR);
raw_reg_write(regs, GEN6_PMIIR, pm_iir);