mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 20:32:21 +00:00
f98f2ce29e
A new backend supporting AMD GPUs: Radeon HD2XXX - HD7XXX git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169915 91177308-0d34-0410-b5e6-96231b3b80d8
118 lines
4.1 KiB
C++
118 lines
4.1 KiB
C++
//===---- AMDILDevice.h - Define Device Data for AMDGPU -----*- C++ -*------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//==-----------------------------------------------------------------------===//
|
|
//
|
|
/// \file
|
|
/// \brief 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 AMDGPUSubtarget;
|
|
class MCStreamer;
|
|
//===----------------------------------------------------------------------===//
|
|
// Interface for data that is specific to a single device
|
|
//===----------------------------------------------------------------------===//
|
|
class AMDGPUDevice {
|
|
public:
|
|
AMDGPUDevice(AMDGPUSubtarget *ST);
|
|
virtual ~AMDGPUDevice();
|
|
|
|
// 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;
|
|
|
|
/// \brief 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;
|
|
|
|
/// \brief Get the generational name of this specific device.
|
|
virtual uint32_t getGeneration() const = 0;
|
|
|
|
/// \brief Get the stack alignment of this specific device.
|
|
virtual uint32_t getStackAlignment() const;
|
|
|
|
/// \brief Get the resource ID for this specific device.
|
|
virtual uint32_t getResourceID(uint32_t DeviceID) const = 0;
|
|
|
|
/// \brief Get the max number of UAV's for this device.
|
|
virtual uint32_t getMaxNumUAVs() 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(AMDGPUDeviceInfo::Caps Mode) const;
|
|
bool usesHardware(AMDGPUDeviceInfo::Caps Mode) const;
|
|
bool usesSoftware(AMDGPUDeviceInfo::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;
|
|
AMDGPUSubtarget *mSTM;
|
|
uint32_t DeviceFlag;
|
|
private:
|
|
AMDGPUDeviceInfo::ExecutionMode
|
|
getExecutionMode(AMDGPUDeviceInfo::Caps Caps) const;
|
|
};
|
|
|
|
} // namespace llvm
|
|
#endif // AMDILDEVICEIMPL_H
|