salsa_kernel.h

#ifndef SALSA_KERNEL_H
#define SALSA_KERNEL_H

#include <stdbool.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef unsigned int uint32_t; // define this as 32 bit type derived from int

// from salsa_kernel.cu
extern int device_map[8];
extern int device_interactive[8];
extern int device_texturecache[8];
extern int device_singlememory[8];
extern char *device_config[8];
extern char *device_name[8];
extern bool autotune;

// CUDA externals
extern int cuda_num_devices();
extern void cuda_shutdown(int thr_id);
extern int cuda_throughput(int thr_id);

extern uint32_t *cuda_transferbuffer(int thr_id, int stream);
extern void cuda_scrypt_HtoD(int thr_id, uint32_t *X, int stream, bool flush);
extern void cuda_scrypt_core(int thr_id, int stream, bool flush);
extern void cuda_scrypt_DtoH(int thr_id, uint32_t *X, int stream, bool flush);
extern void cuda_scrypt_sync(int thr_id, int stream);
extern void computeGold(uint32_t *idata, uint32_t *reference, uint32_t *V);

#ifdef __NVCC__
#include <cuda_runtime.h>
extern cudaError_t MyStreamSynchronize(cudaStream_t stream, int situation, int thr_id);
#endif

#ifdef __cplusplus
}

// If we're in C++ mode, we're either compiling .cu files or scrypt.cpp

#ifdef __NVCC__
/**
 * An pure virtual interface for a CUDA kernel implementation.
 * TODO: encapsulate the kernel launch parameters in some kind of wrapper.
 */
class KernelInterface
{
public:
    virtual void set_scratchbuf_constants(int MAXWARPS, uint32_t** h_V) = 0;
    virtual bool run_kernel(dim3 grid, dim3 threads, int WARPS_PER_BLOCK, int thr_id, cudaStream_t stream, uint32_t* d_idata, uint32_t* d_odata, int *mutex, bool interactive, bool benchmark, int texture_cache) = 0;
    virtual bool bindtexture_1D(uint32_t *d_V, size_t size) = 0;
    virtual bool bindtexture_2D(uint32_t *d_V, int width, int height, size_t pitch) = 0;
    virtual bool unbindtexture_1D() = 0;
    virtual bool unbindtexture_2D() = 0;

    virtual char get_identifier() = 0;
    virtual int max_warps_per_block() = 0;
    virtual int get_texel_width() = 0;
};

// Define work unit size
#define WU_PER_WARP 32
#define WU_PER_BLOCK (WU_PER_WARP*WARPS_PER_BLOCK)
#define WU_PER_LAUNCH (GRID_BLOCKS*WU_PER_BLOCK)
#define SCRATCH (32768+64)

// Not performing error checking is actually bad, but...
#define checkCudaErrors(x) x
#define getLastCudaError(x)

#endif // #ifdef __NVCC__
#endif // #ifdef __cplusplus

#endif // #ifndef SALSA_KERNEL_H