SYSCTRL_MB_CTRL
xe_mmio_rmw32(sc->mmio, SYSCTRL_MB_CTRL, SYSCTRL_MB_CTRL_RUN_BUSY_OUT, 0);
xe_mmio_write32(sc->mmio, SYSCTRL_MB_CTRL, ctrl_reg);
ctrl_reg = xe_mmio_read32(sc->mmio, SYSCTRL_MB_CTRL);
ctrl_reg = xe_mmio_read32(sc->mmio, SYSCTRL_MB_CTRL);
ret = xe_mmio_wait32_not(sc->mmio, SYSCTRL_MB_CTRL, bit_mask, bit_mask,
ret = xe_mmio_wait32(sc->mmio, SYSCTRL_MB_CTRL, bit_mask, bit_mask,