[USMP] Change internal workspace section (apache#11246)

This commit changes the internal workspace generation to be under .bss.noinit.* with NOLOAD behaviour as it does not need any form initialization.
shingjan · May 17, 2022 · 5adac43 · 5adac43
1 parent 91730be
commit 5adac43
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Showing 4 changed files with 10 additions and 10 deletions.
diff --git a/apps/microtvm/cmsisnn/corstone300.ld b/apps/microtvm/cmsisnn/corstone300.ld
@@ -247,12 +247,12 @@ SECTIONS
 
   } > DTCM
 
-  .bss.NoInit :
+  .bss.noinit (NOLOAD):
   {
     . = ALIGN(16);
-    *(.bss.NoInit)
+    *(.bss.noinit.*)
     . = ALIGN(16);
-  } > DDR AT > DDR
+  } > SRAM AT > SRAM
 
   .bss :
   {

diff --git a/apps/microtvm/ethosu/corstone300.ld b/apps/microtvm/ethosu/corstone300.ld
@@ -251,12 +251,12 @@ SECTIONS
 
   } > DTCM
 
-  .bss.NoInit :
+  .bss.noinit (NOLOAD):
   {
     . = ALIGN(16);
-    *(.bss.NoInit)
+    *(.bss.noinit.*)
     . = ALIGN(16);
-  } > DDR AT > DDR
+  } > SRAM AT > SRAM
 
   .bss :
   {

diff --git a/src/target/source/source_module.cc b/src/target/source/source_module.cc
@@ -242,7 +242,7 @@ class CSourceCrtMetadataModuleNode : public runtime::ModuleNode {
       for (const auto& kv : metadata_->pool_inputs.value()) {
         tir::usmp::AllocatedPoolInfo allocated_pool_info = kv.second;
         if (allocated_pool_info->pool_info->is_internal) {
-          code_ << "__attribute__((section(\".data.tvm\"), ";
+          code_ << "__attribute__((section(\".bss.noinit.tvm\"), ";
           code_ << "aligned(" << 16 << ")))\n";
           code_ << "static uint8_t " << allocated_pool_info->pool_info->pool_name << "["
                 << allocated_pool_info->allocated_size->value << "];\n";

diff --git a/tests/python/relay/aot/corstone300.ld b/tests/python/relay/aot/corstone300.ld
@@ -251,12 +251,12 @@ SECTIONS
     . = ALIGN(16);
   } > SRAM AT > SRAM
 
-  .bss.NoInit :
+  .bss.noinit (NOLOAD):
   {
     . = ALIGN(16);
-    *(.bss.NoInit)
+    *(.bss.noinit.*)
     . = ALIGN(16);
-  } > DDR AT > DDR
+  } > SRAM AT > SRAM
 
   .bss :
   {