commit 0ae1a9d109154523e363f7f9beeae89105c0d1e7
author Matthew Poremba <matthew.poremba@amd.com> Thu Dec 09 12:27:51 2021 -0600
committer Bobby Bruce <bbruce@ucdavis.edu> Sat Dec 11 03:59:19 2021 +0000
tree 89328e946bd58d2189ac0445ce9bb40b6cca114f
parent 23aec13f07e679781c8e35553eab6f2c5cbc6924

arch-vega: Implement S_SLEEP

This is merely copied from arch-gcn3.

Change-Id: Ibd2bda37fe9adc083a35efab0f59617d386019b9
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/53883
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/arch/amdgpu/vega/insts/instructions.cc

diff --git a/src/arch/amdgpu/vega/insts/instructions.cc b/src/arch/amdgpu/vega/insts/instructions.cc
index d12709a..28473d7 100644
--- a/src/arch/amdgpu/vega/insts/instructions.cc
+++ b/src/arch/amdgpu/vega/insts/instructions.cc
@@ -4608,6 +4608,8 @@
     Inst_SOPP__S_SLEEP::Inst_SOPP__S_SLEEP(InFmt_SOPP *iFmt)
         : Inst_SOPP(iFmt, "s_sleep")
     {
+        setFlag(ALU);
+        setFlag(Sleep);
     } // Inst_SOPP__S_SLEEP
 
     Inst_SOPP__S_SLEEP::~Inst_SOPP__S_SLEEP()
@@ -4620,7 +4622,10 @@
     void
     Inst_SOPP__S_SLEEP::execute(GPUDynInstPtr gpuDynInst)
     {
-        panicUnimplemented();
+        ScalarRegI32 simm16 = (ScalarRegI32)instData.SIMM16;
+        gpuDynInst->wavefront()->setStatus(Wavefront::S_STALLED_SLEEP);
+        // sleep duration is specified in multiples of 64 cycles
+        gpuDynInst->wavefront()->setSleepTime(64 * simm16);
     } // execute
     // --- Inst_SOPP__S_SETPRIO class methods ---