mhpmcounter23h

Machine Hardware Performance Counter 23, Upper half

Upper half of mhpmcounter23.

Attributes

CSR Address

0xb97

Defining extension

  • Smhpm, version >= 0

Length

32-bit

Privilege Mode

M

Format

mhpmcounter23h format
Figure 1. mhpmcounter23h format

Field Summary

Name Location Type Reset Value

Fields

This CSR has no fields. However, it must still exist (not cause an Illegal Instruction trap) and always return zero on a read.

Software read

This CSR may return a value that is different from what is stored in hardware.

  • Pruned

  • Original

return 0;
if (HPM_COUNTER_EN[23]) {
  return read_hpm_counter(23)[63:32];
} else {
  return 0;
}