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+//===---- AMDILDevice.h - Define Device Data for AMDIL -----*- C++ -*------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//==-----------------------------------------------------------------------===//
+//
+// Interface for the subtarget data classes.
+//
+//===----------------------------------------------------------------------===//
+// This file will define the interface that each generation needs to
+// implement in order to correctly answer queries on the capabilities of the
+// specific hardware.
+//===----------------------------------------------------------------------===//
+#ifndef _AMDILDEVICEIMPL_H_
+#define _AMDILDEVICEIMPL_H_
+#include "AMDIL.h"
+#include "llvm/ADT/BitVector.h"
+
+namespace llvm {
+ class AMDILSubtarget;
+ class AMDILAsmPrinter;
+ class AMDILIOExpansion;
+ class AMDILPointerManager;
+ class AsmPrinter;
+ class MCStreamer;
+//===----------------------------------------------------------------------===//
+// Interface for data that is specific to a single device
+//===----------------------------------------------------------------------===//
+class AMDILDevice {
+public:
+ AMDILDevice(AMDILSubtarget *ST);
+ virtual ~AMDILDevice();
+
+ // Enum values for the various memory types.
+ enum {
+ RAW_UAV_ID = 0,
+ ARENA_UAV_ID = 1,
+ LDS_ID = 2,
+ GDS_ID = 3,
+ SCRATCH_ID = 4,
+ CONSTANT_ID = 5,
+ GLOBAL_ID = 6,
+ MAX_IDS = 7
+ } IO_TYPE_IDS;
+
+ // Returns the max LDS size that the hardware supports. Size is in
+ // bytes.
+ virtual size_t getMaxLDSSize() const = 0;
+
+ // Returns the max GDS size that the hardware supports if the GDS is
+ // supported by the hardware. Size is in bytes.
+ virtual size_t getMaxGDSSize() const;
+
+ // Returns the max number of hardware constant address spaces that
+ // are supported by this device.
+ virtual size_t getMaxNumCBs() const;
+
+ // Returns the max number of bytes a single hardware constant buffer
+ // can support. Size is in bytes.
+ virtual size_t getMaxCBSize() const;
+
+ // Returns the max number of bytes allowed by the hardware scratch
+ // buffer. Size is in bytes.
+ virtual size_t getMaxScratchSize() const;
+
+ // Get the flag that corresponds to the device.
+ virtual uint32_t getDeviceFlag() const;
+
+ // Returns the number of work-items that exist in a single hardware
+ // wavefront.
+ virtual size_t getWavefrontSize() const = 0;
+
+ // Get the generational name of this specific device.
+ virtual uint32_t getGeneration() const = 0;
+
+ // Get the stack alignment of this specific device.
+ virtual uint32_t getStackAlignment() const;
+
+ // Get the resource ID for this specific device.
+ virtual uint32_t getResourceID(uint32_t DeviceID) const = 0;
+
+ // Get the max number of UAV's for this device.
+ virtual uint32_t getMaxNumUAVs() const = 0;
+
+ // Interface to get the IO Expansion pass for each device.
+ virtual FunctionPass*
+ getIOExpansion(TargetMachine& AMDIL_OPT_LEVEL_DECL) const = 0;
+
+ // Interface to get the Asm printer for each device.
+ virtual AsmPrinter*
+ getAsmPrinter(TargetMachine& TM, MCStreamer &Streamer) const = 0;
+
+ // Interface to get the Pointer manager pass for each device.
+ virtual FunctionPass*
+ getPointerManager(TargetMachine& AMDIL_OPT_LEVEL_DECL) const = 0;
+
+
+ // API utilizing more detailed capabilities of each family of
+ // cards. If a capability is supported, then either usesHardware or
+ // usesSoftware returned true. If usesHardware returned true, then
+ // usesSoftware must return false for the same capability. Hardware
+ // execution means that the feature is done natively by the hardware
+ // and is not emulated by the softare. Software execution means
+ // that the feature could be done in the hardware, but there is
+ // software that emulates it with possibly using the hardware for
+ // support since the hardware does not fully comply with OpenCL
+ // specs.
+ bool isSupported(AMDILDeviceInfo::Caps Mode) const;
+ bool usesHardware(AMDILDeviceInfo::Caps Mode) const;
+ bool usesSoftware(AMDILDeviceInfo::Caps Mode) const;
+ virtual std::string getDataLayout() const;
+ static const unsigned int MAX_LDS_SIZE_700 = 16384;
+ static const unsigned int MAX_LDS_SIZE_800 = 32768;
+ static const unsigned int WavefrontSize = 64;
+ static const unsigned int HalfWavefrontSize = 32;
+ static const unsigned int QuarterWavefrontSize = 16;
+protected:
+ virtual void setCaps();
+ llvm::BitVector mHWBits;
+ llvm::BitVector mSWBits;
+ AMDILSubtarget *mSTM;
+ uint32_t mDeviceFlag;
+private:
+ AMDILDeviceInfo::ExecutionMode
+ getExecutionMode(AMDILDeviceInfo::Caps Caps) const;
+}; // AMDILDevice
+
+} // namespace llvm
+#endif // _AMDILDEVICEIMPL_H_