janetsc commented on code in PR #13181:
URL: https://github.com/apache/tvm/pull/13181#discussion_r1005022336
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src/runtime/hexagon/hexagon_hvx.cc:
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@@ -31,25 +31,30 @@ namespace tvm {
namespace runtime {
namespace hexagon {
-HexagonHvx::HexagonHvx() {
- // Reserve HVX.
- int res = qurt_hvx_reserve(QURT_HVX_RESERVE_ALL_AVAILABLE);
- CHECK((res != QURT_HVX_RESERVE_NOT_SUPPORTED) && (res !=
QURT_HVX_RESERVE_NOT_SUCCESSFUL))
- << "error reserving HVX: " << res;
+HexagonHvx::HexagonHvx() { Acquire(); }
- // Lock HVX.
+HexagonHvx::~HexagonHvx() { Release(); }
+
+void HexagonHvx::Acquire() {
+ reserved_count_ = qurt_hvx_reserve(QURT_HVX_RESERVE_ALL);
Review Comment:
No, the main thread constructs a HexagonHvx object, which calls
qurt_hvx_reserve. Each thread assigned to an HVX_x instance calls Lock();
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