86 lines
2.4 KiB
C++
86 lines
2.4 KiB
C++
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#include "opensbi/extensions/pmu.h"
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namespace drivers {
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namespace opensbi::pmu {
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namespace {
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enum class ExtensionId {
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PMU = 0x504D55
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};
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enum class FunctionId {
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NUM_COUNTERS,
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COUNTER_GET_INFO,
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COUNTER_CONFIG_MATCHING,
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COUNTER_START,
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COUNTER_STOP,
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COUNTER_FW_READ
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};
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}
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SbiRet num_counters() {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::PMU),
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static_cast<sbiword_t>(FunctionId::NUM_COUNTERS));
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}
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SbiRet counter_get_info(unsigned long counter_idx) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::PMU),
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static_cast<sbiword_t>(FunctionId::COUNTER_GET_INFO),
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counter_idx);
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}
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SbiRet counter_config_matching(
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unsigned long counter_idx_base,
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unsigned long counter_idx_mask,
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unsigned long config_flags,
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unsigned long event_idx,
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uint64_t event_data) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::PMU),
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static_cast<sbiword_t>(FunctionId::COUNTER_CONFIG_MATCHING),
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counter_idx_base,
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counter_idx_mask,
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config_flags,
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event_idx,
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event_data);
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}
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SbiRet counter_start(
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unsigned long counter_idx_base,
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unsigned long counter_idx_mask,
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unsigned long start_flags,
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uint64_t initial_value) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::PMU),
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static_cast<sbiword_t>(FunctionId::COUNTER_START),
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counter_idx_base,
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counter_idx_mask,
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start_flags,
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initial_value);
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}
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SbiRet counter_stop(
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unsigned long counter_idx_base,
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unsigned long counter_idx_mask,
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unsigned long stop_flags) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::PMU),
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static_cast<sbiword_t>(FunctionId::COUNTER_STOP),
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counter_idx_base,
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counter_idx_mask,
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stop_flags);
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}
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SbiRet counter_fw_read(unsigned long counter_idx) {
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return ecall(
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static_cast<sbiword_t>(ExtensionId::PMU),
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static_cast<sbiword_t>(FunctionId::COUNTER_FW_READ),
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counter_idx);
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}
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} // End namespace opensbi::pmu
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} // End namespace drivers
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