gpu-compute: Remove unused function hostWakeUp from shader

Change-Id: Ib4415a7c5918da03bbd16fe9adb4dd593dcaa95c
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/29929
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/gpu-compute/shader.cc

@@ -153,19 +153,6 @@ Shader::updateContext(int cid) {
     assert(gpuTc);
 }
 
-void
-Shader::hostWakeUp(BaseCPU *cpu) {
-    if (cpuPointer == cpu) {
-        if (gpuTc->status() == ThreadContext::Suspended)
-            cpu->activateContext(gpuTc->threadId());
-    } else {
-        //Make sure both dispatcher and shader are trying to
-        //wakeup same host. Hack here to enable kernel launch
-        //from multiple CPUs
-        panic("Dispatcher wants to wakeup a different host");
-    }
-}
-
 Shader*
 ShaderParams::create()
 {

src/gpu-compute/shader.hh

@@ -301,7 +301,6 @@ class Shader : public ClockedObject
     Addr mmap(int length);
     void functionalTLBAccess(PacketPtr pkt, int cu_id, BaseTLB::Mode mode);
     void updateContext(int cid);
-    void hostWakeUp(BaseCPU *cpu);
     void notifyCuSleep();
 };