mhpmcounter28h Machine Hardware Performance Counter 28, Upper half Upper half of mhpmcounter28. Attributes CSR Address 0xb9c Defining extension Smhpm, version >= Smhpm@1.11.0 Length 32-bit Privilege Mode M Format Figure 1. mhpmcounter28h format Field Summary Name Location Type Reset Value COUNT 31:0 RO 0 Fields COUNT Location mhpmcounter28h[31:0] Description Upper bits of counter. Type RO Read-Only Field has a hardwired value that does not change. Writes to an RO field are ignored. Reset value 0 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[28]) { return %%LINK%func;read_hpm_counter;read_hpm_counter%%(28)[63:32]; } else { return 0; }