mhpmcounter16h

Machine Hardware Performance Counter 16, Upper half

Upper half of mhpmcounter16.

Attributes

CSR Address

0xb90

Defining extension

  • Smhpm, version >= 0

Length

32-bit

Privilege Mode

M

Format

mhpmcounter16h format
Figure 1. mhpmcounter16h 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[16]) {
  return read_hpm_counter(16)[63:32];
} else {
  return 0;
}