Matthew Poremba has submitted this change. (
https://gem5-review.googlesource.com/c/public/gem5/+/57651 )
(
12 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the
submitted one.
)Change subject: gpu-compute: Add methods to read GPU memory requestor ID
..
gpu-compute: Add methods to read GPU memory requestor ID
These methods are called from various places to override the requestor
ID of a request in order to determine which Ruby network a request
should be routed on.
Change-Id: Ic0270ddd7123f0457a13144e69ef9132204d4334
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/57651
Reviewed-by: Matt Sinclair
Maintainer: Matt Sinclair
Tested-by: kokoro
---
M src/gpu-compute/compute_unit.cc
M src/gpu-compute/compute_unit.hh
M src/gpu-compute/gpu_command_processor.cc
M src/gpu-compute/gpu_command_processor.hh
M src/gpu-compute/shader.cc
M src/gpu-compute/shader.hh
6 files changed, 48 insertions(+), 0 deletions(-)
Approvals:
Matt Sinclair: Looks good to me, approved; Looks good to me, approved
kokoro: Regressions pass
diff --git a/src/gpu-compute/compute_unit.cc
b/src/gpu-compute/compute_unit.cc
index f3db81c..cc6244b 100644
--- a/src/gpu-compute/compute_unit.cc
+++ b/src/gpu-compute/compute_unit.cc
@@ -2010,6 +2010,15 @@
}
/**
+ * Forward the VRAM requestor ID needed for device memory from shader.
+ */
+RequestorID
+ComputeUnit::vramRequestorId()
+{
+return FullSystem ? shader->vramRequestorId() : requestorId();
+}
+
+/**
* get the result of packets sent to the LDS when they return
*/
bool
diff --git a/src/gpu-compute/compute_unit.hh
b/src/gpu-compute/compute_unit.hh
index 10fd2f9..87ed541 100644
--- a/src/gpu-compute/compute_unit.hh
+++ b/src/gpu-compute/compute_unit.hh
@@ -458,6 +458,7 @@
void updatePageDivergenceDist(Addr addr);
RequestorID requestorId() { return _requestorId; }
+RequestorID vramRequestorId();
bool isDone() const;
bool isVectorAluIdle(uint32_t simdId) const;
diff --git a/src/gpu-compute/gpu_command_processor.cc
b/src/gpu-compute/gpu_command_processor.cc
index 9499d47..0f74cb1 100644
--- a/src/gpu-compute/gpu_command_processor.cc
+++ b/src/gpu-compute/gpu_command_processor.cc
@@ -65,6 +65,15 @@
return *hsaPP;
}
+/**
+ * Forward the VRAM requestor ID needed for device memory from GPU device.
+ */
+RequestorID
+GPUCommandProcessor::vramRequestorId()
+{
+return gpuDevice->vramRequestorId();
+}
+
TranslationGenPtr
GPUCommandProcessor::translate(Addr vaddr, Addr size)
{
diff --git a/src/gpu-compute/gpu_command_processor.hh
b/src/gpu-compute/gpu_command_processor.hh
index 1bc19c7..ec163ed 100644
--- a/src/gpu-compute/gpu_command_processor.hh
+++ b/src/gpu-compute/gpu_command_processor.hh
@@ -76,6 +76,7 @@
GPUCommandProcessor(const Params &p);
HSAPacketProcessor& hsaPacketProc();
+RequestorID vramRequestorId();
void setGPUDevice(AMDGPUDevice *gpu_device);
void setShader(Shader *shader);
diff --git a/src/gpu-compute/shader.cc b/src/gpu-compute/shader.cc
index a4e72b3..ebacbb5 100644
--- a/src/gpu-compute/shader.cc
+++ b/src/gpu-compute/shader.cc
@@ -523,6 +523,15 @@
stats.shaderActiveTicks += curTick() - _lastInactiveTick;
}
+/**
+ * Forward the VRAM requestor ID needed for device memory from CP.
+ */
+RequestorID
+Shader::vramRequestorId()
+{
+return gpuCmdProc.vramRequestorId();
+}
+
Shader::ShaderStats::ShaderStats(statistics::Group *parent, int wf_size)
: statistics::Group(parent),
ADD_STAT(allLatencyDist, "delay distribution for all"),
diff --git a/src/gpu-compute/shader.hh b/src/gpu-compute/shader.hh
index 0ea8741..96ad15d 100644
--- a/src/gpu-compute/shader.hh
+++ b/src/gpu-compute/shader.hh
@@ -183,6 +183,8 @@
shHiddenPrivateBaseVmid = sh_hidden_base_new;
}
+RequestorID vramRequestorId();
+
EventFunctionWrapper tickEvent;
// is this simulation going to be timing mode in the memory?
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ic0270ddd7123f0457a13144e69ef9132204d4334
Gerrit-Change-Number: 57651
Gerrit-PatchSet: 18
Gerrit-Owner: Matthew Poremba
Gerrit-Reviewer: Matt Sinclair
Gerrit-Reviewer: Matthew Poremba
Gerrit-Reviewer: kokoro
Gerrit-MessageType: merged
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