enable mcycle in matadd examples (#413)

esl-epfl · Oct 19, 2023 · df569a8 · df569a8
1 parent 27fb6ad
commit df569a8
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Showing 2 changed files with 9 additions and 5 deletions.
diff --git a/sw/applications/example_matadd/main.c b/sw/applications/example_matadd/main.c
@@ -30,16 +30,17 @@ int main()
     int N = WIDTH;
     int M = HEIGHT;
     uint32_t errors = 0;
-    unsigned int instr, cycles, ldstall, jrstall, imstall;
+    unsigned int instr, cycles;
+
+    //enable mcycle csr
+    CSR_CLEAR_BITS(CSR_REG_MCOUNTINHIBIT, 0x1);
 
     CSR_WRITE(CSR_REG_MCYCLE, 0);
 
     //execute the kernel
     matrixAdd(m_a, m_b, m_c, N, M);
 
-    CSR_READ(CSR_REG_MCYCLE, &cycles) ;
-
-    //stop the HW counter used for monitoring
+    CSR_READ(CSR_REG_MCYCLE, &cycles);
 
     errors = check_results(m_c, N, M);
 

diff --git a/sw/applications/example_matfadd/main.c b/sw/applications/example_matfadd/main.c
@@ -117,11 +117,14 @@ int main()
     int N = WIDTH;
     int M = HEIGHT;
     uint32_t errors = 0;
-    unsigned int instr, cycles, ldstall, jrstall, imstall;
+    unsigned int instr, cycles;
 
     //enable FP operations
     CSR_SET_BITS(CSR_REG_MSTATUS, (FS_INITIAL << 13));
 
+    //enable mcycle csr
+    CSR_CLEAR_BITS(CSR_REG_MCOUNTINHIBIT, 0x1);
+
     CSR_WRITE(CSR_REG_MCYCLE, 0);
 
     //execute the kernel