mhpmcounter4h
Machine Hardware Performance Counter 4, Upper half
Upper half of mhpmcounter4.
Attributes
Defining Extension |
|
---|---|
CSR Address |
0xb84 |
Length |
32-bit |
Privilege Mode |
M |
Field Summary
Name | Location | Type | Reset Value |
---|---|---|---|
31:0 |
[when,"HPM_COUNTER_EN[4]"] RW-H [when,"!(HPM_COUNTER_EN[4])"] RO |
UNDEFINED_LEGAL |
Software read
This CSR may return a value that is different from what is stored in hardware.
if (HPM_COUNTER_EN[4]) {
return read_hpm_counter(4)[63:32];
} else {
return 0;
}