1 files changed, 61 insertions, 0 deletions
diff --git a/xmrstak/backend/amd/minethd.hpp b/xmrstak/backend/amd/minethd.hpp
new file mode 100644
index 0000000..4fb3b13
--- /dev/null
+++ b/xmrstak/backend/amd/minethd.hpp
@@ -0,0 +1,61 @@
+#pragma once
+#include <thread>
+#include <atomic>
+#include "./jconf.h"
+#include "../IBackend.hpp"
+#include "../../Environment.hpp"
+
+#include "amd_gpu/gpu.h"
+
+namespace xmrstak
+{
+namespace amd
+{
+
+class minethd  : public IBackend
+{
+public:
+
+	static void switch_work(miner_work& pWork);
+	static std::vector<IBackend*>* thread_starter(uint32_t threadOffset, miner_work& pWork);
+	static bool init_gpus();
+
+private:
+	typedef void (*cn_hash_fun)(const void*, size_t, void*, cryptonight_ctx*);
+	
+	minethd(miner_work& pWork, size_t iNo, GpuContext* ctx);
+
+	// We use the top 8 bits of the nonce for thread and resume
+	// This allows us to resume up to 64 threads 4 times before
+	// we get nonce collisions
+	// Bottom 24 bits allow for an hour of work at 4000 H/s
+	inline uint32_t calc_start_nonce(uint32_t resume)
+	{
+		return reverseBits<uint32_t>(static_cast<uint32_t>(iThreadNo + GlobalStates::inst().iThreadCount * resume));
+	}
+	
+	void work_main();
+	void double_work_main();
+	void consume_work();
+
+	uint64_t iJobNo;
+
+	static miner_work oGlobalWork;
+	miner_work oWork;
+
+	std::thread oWorkThd;
+	uint8_t iThreadNo;
+
+	bool bQuit;
+	bool bNoPrefetch;
+
+	//Mutable ptr to vector below, different for each thread
+	GpuContext* pGpuCtx;
+
+	// WARNING - this vector (but not its contents) must be immutable
+	// once the threads are started
+	static std::vector<GpuContext> vGpuData;
+};
+
+} // namespace amd
+} // namespace xmrstak