Github_Repos/cvw
1
0
Fork 1
mirror of https://github.com/openhwgroup/cvw synced 2025-02-11 06:05:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

Update pmachecker.sv

Browse Source 
Program clean up
This commit is contained in:
Harshini Srinath 2023-06-12 18:39:36 -07:00 committed by GitHub
parent 5a6a932b7e
commit ccb81c84f4
1 changed files with 18 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
src/mmu/pmachecker.sv
View File

@ -30,26 +30,26 @@
module pmachecker import cvw::*; #(parameter cvw_t P) (
input logic [P.PA_BITS-1:0] PhysicalAddress,
input logic [1:0] Size,
input logic AtomicAccessM, // Atomic access
input logic ExecuteAccessF, // Execute access
input logic WriteAccessM, // Write access
input logic ReadAccessM, // Read access
output logic Cacheable, Idempotent, SelTIM,
output logic PMAInstrAccessFaultF,
output logic PMALoadAccessFaultM,
output logic PMAStoreAmoAccessFaultM
input logic [1:0] Size,
input logic AtomicAccessM, // Atomic access
input logic ExecuteAccessF, // Execute access
input logic WriteAccessM, // Write access
input logic ReadAccessM, // Read access
output logic Cacheable, Idempotent, SelTIM,
output logic PMAInstrAccessFaultF,
output logic PMALoadAccessFaultM,
output logic PMAStoreAmoAccessFaultM
);
logic PMAAccessFault;
logic AccessRW, AccessRWX, AccessRX;
logic [10:0] SelRegions;
logic AtomicAllowed;
logic PMAAccessFault;
logic AccessRW, AccessRWX, AccessRX;
logic [10:0] SelRegions;
logic AtomicAllowed;
// Determine what type of access is being made
assign AccessRW = ReadAccessM | WriteAccessM;
assign AccessRW = ReadAccessM | WriteAccessM;
assign AccessRWX = ReadAccessM | WriteAccessM | ExecuteAccessF;
assign AccessRX = ReadAccessM | ExecuteAccessF;
assign AccessRX = ReadAccessM | ExecuteAccessF;
// Determine which region of physical memory (if any) is being accessed
adrdecs #(P) adrdecs(PhysicalAddress, AccessRW, AccessRX, AccessRWX, Size, SelRegions);
@ -65,9 +65,8 @@ module pmachecker import cvw::*; #(parameter cvw_t P) (
assign SelTIM = SelRegions[10] | SelRegions[9]; // exclusion-tag: unused-tim
// Detect access faults
assign PMAAccessFault = (SelRegions[0]) & AccessRWX | AtomicAccessM & ~AtomicAllowed;
assign PMAInstrAccessFaultF = ExecuteAccessF & PMAAccessFault;
assign PMALoadAccessFaultM = ReadAccessM & PMAAccessFault;
assign PMAAccessFault = (SelRegions[0]) & AccessRWX | AtomicAccessM & ~AtomicAllowed;
assign PMAInstrAccessFaultF = ExecuteAccessF & PMAAccessFault;
assign PMALoadAccessFaultM = ReadAccessM & PMAAccessFault;
assign PMAStoreAmoAccessFaultM = WriteAccessM & PMAAccessFault;
endmodule