Quantum
464a61102e
Added legacy extension Fixed typing memes by just define a sbiword_t typedef Renamed sbiret_t to SbiRet, I think i'll only use _t for typedefs Added ecall() variant that takes no additional arguments Moved opensbi includes to includes/opensbi/... kernel.cpp uses the legacy extensions instead of raw ecalls All legacy extension calls are marked as deprecated
105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
#include "opensbi/extensions/legacy.h"
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namespace drivers {
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namespace opensbi::legacy {
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namespace {
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enum class ExtensionId {
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SET_TIMER,
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CONSOLE_PUTCHAR,
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CONSOLE_GETCHAR,
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CLEAR_IPI,
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SEND_IPI,
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REMOTE_FENCE_I,
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REMOTE_SFENCE_VMA,
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REMOTE_SFENCE_VMA_ASID,
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SHUTDOWN
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};
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}
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SbiRet set_timer(std::uint64_t stime_value) {
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#if __riscv_xlen == 64
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return ecall(
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static_cast<sbiword_t>(ExtensionId::SET_TIMER),
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0,
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stime_value);
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#else
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return ecall(
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static_cast<sbiword_t>(ExtensionId::SET_TIMER),
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0,
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static_cast<uint32_t>(stime_value),
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static_cast<uint32_t>(stime_value >> 32));
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#endif
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}
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SbiRet console_putchar(int ch) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::CONSOLE_PUTCHAR),
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0,
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ch);
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}
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SbiRet console_getchar() {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::CONSOLE_GETCHAR),
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0);
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}
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SbiRet clear_ipmi() {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::CLEAR_IPI),
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0);
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}
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SbiRet send_ipmi(hart_mask_t hart_mask) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::SEND_IPI),
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0,
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reinterpret_cast<sbiword_t>(hart_mask));
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}
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SbiRet remote_fence_i(hart_mask_t hart_mask) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::REMOTE_FENCE_I),
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0,
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reinterpret_cast<sbiword_t>(hart_mask));
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}
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SbiRet remote_sfence_vma(
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hart_mask_t hart_mask,
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sbiword_t start,
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sbiword_t size) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::REMOTE_SFENCE_VMA),
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0,
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reinterpret_cast<sbiword_t>(hart_mask),
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start,
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size);
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}
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SbiRet remote_sfence_vma_asid(
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hart_mask_t hart_mask,
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sbiword_t start,
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sbiword_t size,
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sbiword_t asid) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::REMOTE_SFENCE_VMA_ASID),
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0,
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reinterpret_cast<sbiword_t>(hart_mask),
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start,
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size,
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asid);
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}
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void shutdown() {
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ecall(
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static_cast<sbiword_t>(ExtensionId::SHUTDOWN),
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0);
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// This should never be reached, explode if it is
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__builtin_trap();
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while(1);
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}
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} // End namespace opensbi::legacy
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} // End namespace drivers
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