diff options
Diffstat (limited to 'doc/hpm.txt')
| -rw-r--r-- | doc/hpm.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/hpm.txt b/doc/hpm.txt new file mode 100644 index 0000000..07ae2e1 --- /dev/null +++ b/doc/hpm.txt @@ -0,0 +1,11 @@ +RVController Zihpm Counter List +=============================== + +The following counters are supported as part of the Zihpm extension: + +* hpmcounter3: Number of interrupts serviced +* hpmcounter4: Number of non-interrupt traps handled +* hpmcounter5: Number of digilines messages received (excluding console) +* hpmcounter6: Number of console events received + +The upper word of each of these values is available in the corresponding hpmcounterXXh CSR. |