QTechOS/kernel/drivers/opensbi/extensions/base.cpp

#include "opensbi/extensions/base.h"

namespace drivers {
namespace opensbi::base {

    namespace {
        enum class ExtensionId {
            BASE = 0x10
        };

        enum class FunctionId {
            GET_SPEC_VERSION,
            GET_IMPL_ID,
            GET_IMPL_VERSION,
            PROBE_EXTENSION,
            GET_MVENDORID,
            GET_MARCHID,
            GET_MIMPID
        };
    }

    SbiRet get_spec_version() {
        return ecall(
            static_cast<sbiword_t>(ExtensionId::BASE),
            static_cast<sbiword_t>(FunctionId::GET_SPEC_VERSION));
    }

    SbiRet get_impl_id() {
        return ecall(
            static_cast<sbiword_t>(ExtensionId::BASE),
            static_cast<sbiword_t>(FunctionId::GET_IMPL_ID));
    }

    SbiRet get_impl_version() {
        return ecall(
            static_cast<sbiword_t>(ExtensionId::BASE),
            static_cast<sbiword_t>(FunctionId::GET_IMPL_VERSION));
    }

    SbiRet probe_extension(long extension_id) {
        return ecall(
            static_cast<sbiword_t>(ExtensionId::BASE),
            static_cast<sbiword_t>(FunctionId::PROBE_EXTENSION),
            extension_id);
    }

    SbiRet get_mvendor_id() {
        return ecall(
            static_cast<sbiword_t>(ExtensionId::BASE),
            static_cast<sbiword_t>(FunctionId::GET_MVENDORID));
    }

    SbiRet get_march_id() {
        return ecall(
            static_cast<sbiword_t>(ExtensionId::BASE),
            static_cast<sbiword_t>(FunctionId::GET_MARCHID));
    }

    SbiRet get_mimp_id() {
        return ecall(
            static_cast<sbiword_t>(ExtensionId::BASE),
            static_cast<sbiword_t>(FunctionId::GET_MIMPID));
    }

}  // End namespace opensbi::base
}  // End namespace drivers