OpenBLAS/kernel/x86_64/sbgemm_small_kernel_template_cooperlake.c

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#include "common.h"
#include <memory.h>

extern void sbgemm_scal_operation(BLASLONG M, BLASLONG N, float beta, float *C, BLASLONG ldc);
extern void sbgemm_zero_operation(BLASLONG M, BLASLONG N, float *C, BLASLONG ldc);

extern void sbgemm_blocking_kernel_nn_alpha(blasint M, blasint N, blasint K, float alpha, bfloat16 *A, blasint lda, bfloat16 *B, blasint ldb, float *C, blasint ldc, bfloat16 * block_A, bfloat16 * block_B);
extern void sbgemm_blocking_kernel_nn_one(blasint M, blasint N, blasint K, float alpha, bfloat16 *A, blasint lda, bfloat16 *B, blasint ldb, float *C, blasint ldc, bfloat16 * block_A, bfloat16 * block_B);
extern void sbgemm_blocking_kernel_nt_alpha(blasint M, blasint N, blasint K, float alpha, bfloat16 *A, blasint lda, bfloat16 *B, blasint ldb, float *C, blasint ldc, bfloat16 * block_A, bfloat16 * block_B);
extern void sbgemm_blocking_kernel_nt_one(blasint M, blasint N, blasint K, float alpha, bfloat16 *A, blasint lda, bfloat16 *B, blasint ldb, float *C, blasint ldc, bfloat16 * block_A, bfloat16 * block_B);
extern void sbgemm_blocking_kernel_tn_alpha(blasint M, blasint N, blasint K, float alpha, bfloat16 *A, blasint lda, bfloat16 *B, blasint ldb, float *C, blasint ldc, bfloat16 * block_A, bfloat16 * block_B);
extern void sbgemm_blocking_kernel_tn_one(blasint M, blasint N, blasint K, float alpha, bfloat16 *A, blasint lda, bfloat16 *B, blasint ldb, float *C, blasint ldc, bfloat16 * block_A, bfloat16 * block_B);
extern void sbgemm_blocking_kernel_tt_alpha(blasint M, blasint N, blasint K, float alpha, bfloat16 *A, blasint lda, bfloat16 *B, blasint ldb, float *C, blasint ldc, bfloat16 * block_A, bfloat16 * block_B);
extern void sbgemm_blocking_kernel_tt_one(blasint M, blasint N, blasint K, float alpha, bfloat16 *A, blasint lda, bfloat16 *B, blasint ldb, float *C, blasint ldc, bfloat16 * block_A, bfloat16 * block_B);

#if defined(TRANS_NN)
#define SBGEMM_BLOCKING_KERNEL_ONE	sbgemm_blocking_kernel_nn_one
#define SBGEMM_BLOCKING_KERNEL_ALPHA	sbgemm_blocking_kernel_nn_alpha
#elif defined(TRANS_NT)
#define SBGEMM_BLOCKING_KERNEL_ONE	sbgemm_blocking_kernel_nt_one
#define SBGEMM_BLOCKING_KERNEL_ALPHA	sbgemm_blocking_kernel_nt_alpha
#elif defined(TRANS_TN)
#define SBGEMM_BLOCKING_KERNEL_ONE	sbgemm_blocking_kernel_tn_one
#define SBGEMM_BLOCKING_KERNEL_ALPHA	sbgemm_blocking_kernel_tn_alpha
#elif defined(TRANS_TT)
#define SBGEMM_BLOCKING_KERNEL_ONE	sbgemm_blocking_kernel_tt_one
#define SBGEMM_BLOCKING_KERNEL_ALPHA	sbgemm_blocking_kernel_tt_alpha
#endif

#define BF16_BLOCK_THRES_K 1024
// If we want to adjust this to be bigger, need to change COL_MAJOR_INCOPY_KERNEL_Kx32 kernel to be bigger also
#define BF16_BLOCK_THRES_M 32
#define BF16_BLOCK_THRES_N 1024

#define MALLOC_ALIGN64(ptr, size, raw_ptr) \
	raw_ptr = malloc((size) + 63); \
	ptr = (bfloat16 *)(((uintptr_t) raw_ptr + 63) & ~(uintptr_t)63)


#if defined(B0)
int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, IFLOAT * A, BLASLONG lda, FLOAT alpha, IFLOAT * B, BLASLONG ldb, FLOAT * C, BLASLONG ldc)
#else
int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, IFLOAT * A, BLASLONG lda, FLOAT alpha, IFLOAT * B, BLASLONG ldb, FLOAT beta, FLOAT * C, BLASLONG ldc)
#endif
{
	bfloat16 * block_A;
	bfloat16 * block_B;
	void* raw_ptrA;
	void* raw_ptrB;

	MALLOC_ALIGN64(block_A, sizeof(bfloat16) * BF16_BLOCK_THRES_K * BF16_BLOCK_THRES_M, raw_ptrA);
	MALLOC_ALIGN64(block_B, sizeof(bfloat16) * BF16_BLOCK_THRES_N * BF16_BLOCK_THRES_K, raw_ptrB);

#if defined(B0)
	sbgemm_zero_operation(M, N, C, ldc);
#else
	sbgemm_scal_operation(M, N, beta, C, ldc);
#endif

	if (alpha == ONE) {
		SBGEMM_BLOCKING_KERNEL_ONE(M, N, K, alpha, A, lda, B, ldb, C, ldc, block_A, block_B);
	} else {
		SBGEMM_BLOCKING_KERNEL_ALPHA(M, N, K, alpha, A, lda, B, ldb, C, ldc, block_A, block_B);
	}

	free(raw_ptrA);
	free(raw_ptrB);
	return 0;
}