base: Move SatCounter to base directory

Saturating counters are used by many objects, not only
the cpu predictors. Therefore, move the class to the
base folder so that it can be more easily used.

Change-Id: I26f799324bdd8720ab8834c72a2002149cee777c
Signed-off-by: Daniel <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17993
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>

src/base/sat_counter.hh

@@ -41,8 +41,8 @@
  *          Daniel Carvalho
  */
 
-#ifndef __CPU_PRED_SAT_COUNTER_HH__
-#define __CPU_PRED_SAT_COUNTER_HH__
+#ifndef __BASE_SAT_COUNTER_HH__
+#define __BASE_SAT_COUNTER_HH__
 
 #include <cstdint>
 
@@ -127,4 +127,4 @@ class SatCounter
     uint8_t counter;
 };
 
-#endif // __CPU_PRED_SAT_COUNTER_HH__
+#endif // __BASE_SAT_COUNTER_HH__

src/cpu/pred/2bit_local.hh

@@ -46,9 +46,9 @@
 
 #include <vector>
 
+#include "base/sat_counter.hh"
 #include "base/types.hh"
 #include "cpu/pred/bpred_unit.hh"
-#include "cpu/pred/sat_counter.hh"
 #include "params/LocalBP.hh"
 
 /**

src/cpu/pred/bi_mode.hh

@@ -35,8 +35,8 @@
 #ifndef __CPU_PRED_BI_MODE_PRED_HH__
 #define __CPU_PRED_BI_MODE_PRED_HH__
 
+#include "base/sat_counter.hh"
 #include "cpu/pred/bpred_unit.hh"
-#include "cpu/pred/sat_counter.hh"
 #include "params/BiModeBP.hh"
 
 /**

src/cpu/pred/tournament.hh

@@ -47,9 +47,9 @@
 
 #include <vector>
 
+#include "base/sat_counter.hh"
 #include "base/types.hh"
 #include "cpu/pred/bpred_unit.hh"
-#include "cpu/pred/sat_counter.hh"
 #include "params/TournamentBP.hh"
 
 /**