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/* ************************************************************************
* Copyright 2013 Advanced Micro Devices, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ************************************************************************/
#ifndef GEN_HELPER_H_
#define GEN_HELPER_H_
#include <kerngen.h>
#include <dblock_kgen.h>
#include <matrix_props.h>
#include "blas_kgen.h"
typedef enum BufCopyHelperFlags {
// buffer copy functions are needed for matrix A blocks
BCHF_MATRIX_A = 0x01,
// buffer copy functions are needed for matrix B blocks
BCHF_MATRIX_B = 0x02,
/*
* read block of output matrix
* (either B or C)
*/
BCHF_READ_OUTPUT = 0x04,
// write block of output matrix
BCHF_WRITE_OUTPUT = 0x08,
// not unroll loops in transposing versions of customized generators
BCHF_NOT_UNROLL_TRANSPOSE = 0x10,
// output to image
BCHF_IMAGE_WRITE = 0x20
} BufCopyHelperFlags;
typedef enum ZeroGenHelperFlags {
ZF_MATRIX_A = 0x01,
ZF_MATRIX_B = 0x02,
ZF_MATRIX_C = 0x04
} ZeroGenHelperFlags;
/*
* Name of functions copying matrix blocks between the global
* and the local memory. Contains customized and generic transposing
* or not transposing variants for reading and writing back depending on
* generator flags, for all the matrices.
*
* A function name contained in a 'read*' field matches to a function
* copying data from the global memory to the local, and this one
* contained in a 'write*' field matches to a function copying in
* inverse direction.
*/
typedef struct CopyBufFuncs {
char read[MATRIX_ROLES_NUMBER][FUNC_NAME_MAXLEN];
char write[FUNC_NAME_MAXLEN];
char readGeneric[MATRIX_ROLES_NUMBER][FUNC_NAME_MAXLEN];
char writeGeneric[FUNC_NAME_MAXLEN];
} CopyBufFuncs;
/*
* Generate all needed functions copying matrix
* blocks between the global and the local memory
*
* @funcs: function names structure
* @ctx: generator context
* @funcID: function ID
* @gset: generator settings
* @flags: helper flags
*
* The 'flags' field of the 'gset' structure must store flags from
* the 'BufCopyHelperFlags' enumeration
*
* Name of functions dealing with blocks of the output matrix
* are always stored to 'MATRIX_C' name fields.
*
* On success returns 0. If generation fails due
* to buffer overflowing, returns -1.
*/
int
generateBufCopyFuncs(
CopyBufFuncs *funcNames,
struct KgenContext *ctx,
BlasFunctionID funcID,
const BlasGenSettings *gset,
BufCopyHelperFlags flags);
/*
* Have the same semantics as the previous helper,
* but generate functions for zeroing local buffers.
*/
int
generateZeroingFuncs(
ZeroFuncs *funcNames,
struct KgenContext *ctx,
const SubproblemDim *blasDim,
const PGranularity *pgran,
DataType dtype,
ZeroGenHelperFlags flags);
UpdateResultFlags
kextraToUpresFlags(BlasFunctionID, KernelExtraFlags kflags);
int
generateResultUpdate(
struct KgenContext *ctx,
BlasFunctionID funcID,
const BlasGenSettings *gset,
const char *optFuncName,
const char *genericFuncName);
int
genResultUpdateWithFlags(
struct KgenContext *ctx,
BlasFunctionID funcID,
const BlasGenSettings *gset,
UpdateResultFlags flags,
const char *optFuncName,
const char *genericFuncName,
const char *cachedName);
void checkGenBeginHitMatrixBlock(
struct KgenContext *ctx,
KernelExtraFlags kflags);
void checkGenEndHitMatrixBlock(
struct KgenContext *ctx,
KernelExtraFlags kflags);
#endif /* GEN_HELPER_H_ */
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