mhpmcounter3h

Machine Hardware Performance Counter 3, Upper half

Upper half of mhpmcounter3.

Attributes

CSR Address

0xb83

Defining extension

  • Smhpm, version >= 0

Length

32-bit

Privilege Mode

M

Format

mhpmcounter3h format
Figure 1. mhpmcounter3h 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 read_hpm_counter(3)[63:32];
if (HPM_COUNTER_EN[3]) {
  return read_hpm_counter(3)[63:32];
} else {
  return 0;
}