-
- _mode
- .init(cpu_mode_num)
- .name(name() + ".mode_switch")
- .desc("number of protection mode switches")
- ;
-
- for (int i = 0; i < cpu_mode_num; ++i)
- _mode.subname(i, modestr[i]);
-
- _modeGood
- .init(cpu_mode_num)
- .name(name() + ".mode_good")
- ;
-
- for (int i = 0; i < cpu_mode_num; ++i)
- _modeGood.subname(i, modestr[i]);
-
- _modeFraction
- .name(name() + ".mode_switch_good")
- .desc("fraction of useful protection mode switches")
- .flags(total)
- ;
-
- for (int i = 0; i < cpu_mode_num; ++i)
- _modeFraction.subname(i, modestr[i]);
-
- _modeFraction = _modeGood / _mode;
-
- _modeTicks
- .init(cpu_mode_num)
- .name(name() + ".mode_ticks")
- .desc("number of ticks spent at the given mode")
- .flags(pdf)
- ;
- for (int i = 0; i < cpu_mode_num; ++i)
- _modeTicks.subname(i, modestr[i]);
-
- _swap_context
- .name(name() + ".swap_context")
- .desc("number of times the context was actually changed")
- ;
-}
-
-void
-Statistics::setIdleProcess(Addr idlepcbb, ThreadContext *tc)
-{
- assert(themode == kernel);
- idleProcess = idlepcbb;
- themode = idle;
- changeMode(themode, tc);
-}
-
-void
-Statistics::changeMode(cpu_mode newmode, ThreadContext *tc)
-{
- _mode[newmode]++;
-
- if (newmode == themode)
- return;
-
- DPRINTF(Context, "old mode=%-8s new mode=%-8s\n",
- modestr[themode], modestr[newmode]);
-
- _modeGood[newmode]++;
- _modeTicks[themode] += curTick - lastModeTick;
-
- lastModeTick = curTick;
- themode = newmode;