core.cxxm

/// SPDX-License-Identifier: Apache-2.0
/// @file arch/s390x/trap/ext.cxxm
/// @brief Centralized external-interruption dispatcher.
 
export module arch.s390x.trap.ext.core;
import arch.s390x.cpu.irq;
import zxfoundation.base.types;
import lib.bitfield;
 
export {
 
namespace arch::s390x::trap::ext {
 
    using ext_parameter = lib::record<u32, lib::msb0_t,
        lib::rw<"timing_status_change", lib::bits<14, 14>>,
        lib::rw<"link_availability_change", lib::bits<15, 15>>,
        lib::rw<"time_control_parameter_change", lib::bits<16, 16>>
    >;
 
    using ext_parameter_view = lib::record_ref<u32, lib::msb0_t,
        lib::rw<"timing_status_change", lib::bits<14, 14>>,
        lib::rw<"link_availability_change", lib::bits<15, 15>>,
        lib::rw<"time_control_parameter_change", lib::bits<16, 16>>
    >;
 
    /// @brief Centralized external-interruption dispatcher.
    /// @param[in,out] frame  Saved interrupt frame from entry.S.
    auto handle(cpu::irq::irq_frame* frame) noexcept -> void;
 
} // namespace arch::s390x::trap::ext
 
} // end export