cpu: Create a PCEventScope class to abstract the scope of PCEvents.

This abstraction will allow scheduling PCEvents for a particular
ThreadContext, all contexts on a CPU, all contexts in a system, etc.,
and delegates scheduling and removing events to each particular scope.

Right now the PCEventQueue is the only implementor of the PCEventSCope
interface.

Change-Id: I8fb62931511136229915c2e19d36aae7ffdec9df
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/22099
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

3 files changed, 12 insertions, 12 deletions

diff --git a/src/kern/freebsd/events.hh b/src/kern/freebsd/events.hh
index 1d3faa935..ebee3e084 100644
--- a/src/kern/freebsd/events.hh
+++ b/src/kern/freebsd/events.hh
@@ -57,9 +57,9 @@ class UDelayEvent : public SkipFuncEvent
     uint64_t argMultToNs;
 
   public:
-    UDelayEvent(PCEventQueue *q, const std::string &desc, Addr addr,
+    UDelayEvent(PCEventScope *s, const std::string &desc, Addr addr,
             uint64_t mult, uint64_t div)
-        : SkipFuncEvent(q, desc, addr), argDivToNs(div), argMultToNs(mult) {}
+        : SkipFuncEvent(s, desc, addr), argDivToNs(div), argMultToNs(mult) {}
     virtual void process(ThreadContext *xc);
 };
 
diff --git a/src/kern/linux/events.hh b/src/kern/linux/events.hh
index b8aad9d79..d4c77bf68 100644
--- a/src/kern/linux/events.hh
+++ b/src/kern/linux/events.hh
@@ -51,8 +51,8 @@ namespace Linux {
 class DebugPrintkEvent : public SkipFuncEvent
 {
   public:
-    DebugPrintkEvent(PCEventQueue *q, const std::string &desc, Addr addr)
-        : SkipFuncEvent(q, desc, addr) {}
+    DebugPrintkEvent(PCEventScope *s, const std::string &desc, Addr addr)
+        : SkipFuncEvent(s, desc, addr) {}
     virtual void process(ThreadContext *xc);
 };
 
@@ -70,9 +70,9 @@ class DmesgDumpEvent : public PCEvent
     std::string fname;
 
   public:
-    DmesgDumpEvent(PCEventQueue *q, const std::string &desc, Addr addr,
+    DmesgDumpEvent(PCEventScope *s, const std::string &desc, Addr addr,
                    const std::string &_fname)
-        : PCEvent(q, desc, addr), fname(_fname) {}
+        : PCEvent(s, desc, addr), fname(_fname) {}
     virtual void process(ThreadContext *xc);
 };
 
@@ -90,9 +90,9 @@ class KernelPanicEvent : public PCEvent
     std::string fname;
 
   public:
-    KernelPanicEvent(PCEventQueue *q, const std::string &desc, Addr addr,
+    KernelPanicEvent(PCEventScope *s, const std::string &desc, Addr addr,
                const std::string &_fname)
-        : PCEvent(q, desc, addr), fname(_fname) {}
+        : PCEvent(s, desc, addr), fname(_fname) {}
     virtual void process(ThreadContext *xc);
 };
 
@@ -116,9 +116,9 @@ class UDelayEvent : public SkipFuncEvent
     uint64_t argMultToNs;
 
   public:
-    UDelayEvent(PCEventQueue *q, const std::string &desc, Addr addr,
+    UDelayEvent(PCEventScope *s, const std::string &desc, Addr addr,
             uint64_t mult, uint64_t div)
-        : SkipFuncEvent(q, desc, addr), argDivToNs(div), argMultToNs(mult) {}
+        : SkipFuncEvent(s, desc, addr), argDivToNs(div), argMultToNs(mult) {}
     virtual void process(ThreadContext *xc);
 };
 
diff --git a/src/kern/system_events.hh b/src/kern/system_events.hh
index 58cbc4808..967443937 100644
--- a/src/kern/system_events.hh
+++ b/src/kern/system_events.hh
@@ -38,8 +38,8 @@
 class SkipFuncEvent : public PCEvent
 {
   public:
-    SkipFuncEvent(PCEventQueue *q, const std::string &desc, Addr addr)
-        : PCEvent(q, desc, addr)
+    SkipFuncEvent(PCEventScope *s, const std::string &desc, Addr addr)
+        : PCEvent(s, desc, addr)
     {}
     virtual void process(ThreadContext *tc);
 };