support dynamic arch of bgemm interface

common_b.h

@@ -30,7 +30,7 @@
 #define COMMON_B_H
 
 // for now, only support DYNAMIC_ARCH = 0 case.
-
+#ifndef DYNAMIC_ARCH
 #define	BGEMM_ONCOPY		bgemm_oncopy
 #define	BGEMM_OTCOPY		bgemm_otcopy
 #define	BGEMM_INCOPY		bgemm_incopy
@@ -39,6 +39,17 @@
 #define	BGEMM_BETA		bgemm_beta
 #define BGEMM_KERNEL            bgemm_kernel
 
+#else
+
+#define	BGEMM_ONCOPY		gotoblas -> bgemm_oncopy
+#define	BGEMM_OTCOPY		gotoblas -> bgemm_otcopy
+#define	BGEMM_INCOPY		gotoblas -> bgemm_incopy
+#define	BGEMM_ITCOPY		gotoblas -> bgemm_itcopy
+#define	BGEMM_BETA		gotoblas -> bgemm_beta
+#define	BGEMM_KERNEL		gotoblas -> bgemm_kernel
+
+#endif
+
 #define	BGEMM_NN		bgemm_nn
 #define	BGEMM_CN		bgemm_tn
 #define	BGEMM_TN		bgemm_tn

common_param.h

@@ -49,6 +49,21 @@ typedef struct {
   int switch_ratio;
   int offsetA, offsetB, align;
 
+#if BUILD_BFLOAT16_ONLY == 1
+  int bgemm_p, bgemm_q, bgemm_r;
+  int bgemm_unroll_m, bgemm_unroll_n, bgemm_unroll_mn;
+  int sbgemm_align_k;
+
+  int    (*bgemm_kernel   )(BLASLONG, BLASLONG, BLASLONG, bfloat16, bfloat16 *, bfloat16 *, bfloat16 *, BLASLONG);
+  int    (*bgemm_beta     )(BLASLONG, BLASLONG, BLASLONG, bfloat16, bfloat16 *, BLASLONG, bfloat16 *, BLASLONG, bfloat16 *, BLASLONG);
+
+  int    (*bgemm_incopy   )(BLASLONG, BLASLONG, bfloat16 *, BLASLONG, bfloat16 *);
+  int    (*bgemm_itcopy   )(BLASLONG, BLASLONG, bfloat16 *, BLASLONG, bfloat16 *);
+  int    (*bgemm_oncopy   )(BLASLONG, BLASLONG, bfloat16 *, BLASLONG, bfloat16 *);
+  int    (*bgemm_otcopy   )(BLASLONG, BLASLONG, bfloat16 *, BLASLONG, bfloat16 *);
+
+#endif
+
 #if BUILD_BFLOAT16 == 1
   int sbgemm_p, sbgemm_q, sbgemm_r;
   int sbgemm_unroll_m, sbgemm_unroll_n, sbgemm_unroll_mn;
@@ -1229,6 +1244,15 @@ extern gotoblas_t *gotoblas;
 
 #define HAVE_EX_L2	gotoblas -> exclusive_cache
 
+#if (BUILD_BFLOAT16_ONLY==1)
+#define	SBGEMM_P		gotoblas -> bgemm_p
+#define	SBGEMM_Q		gotoblas -> bgemm_q
+#define	SBGEMM_R		gotoblas -> bgemm_r
+#define	SBGEMM_UNROLL_M	gotoblas -> bgemm_unroll_m
+#define	SBGEMM_UNROLL_N	gotoblas -> bgemm_unroll_n
+#define	SBGEMM_UNROLL_MN	gotoblas -> bgemm_unroll_mn
+#endif
+
 #if (BUILD_BFLOAT16==1)
 #define	SBGEMM_P		gotoblas -> sbgemm_p
 #define	SBGEMM_Q		gotoblas -> sbgemm_q

kernel/setparam-ref.c

@@ -1,6 +1,6 @@
 /*********************************************************************/
 /* Copyright 2009, 2010 The University of Texas at Austin.           */
-/* Copyright 2023 The OpenBLAS Project.                              */
+/* Copyright 2023, 2025 The OpenBLAS Project.                              */
 /* All rights reserved.                                              */
 /*                                                                   */
 /* Redistribution and use in source and binary forms, with or        */
@@ -56,6 +56,20 @@ gotoblas_t TABLE_NAME = {
 
   GEMM_DEFAULT_OFFSET_A, GEMM_DEFAULT_OFFSET_B, GEMM_DEFAULT_ALIGN,
 
+#ifdef BUILD_BFLOAT16_ONLY
+  0, 0, 0,
+  BGEMM_DEFAULT_UNROLL_M, BGEMM_DEFAULT_UNROLL_N,
+#ifdef BGEMM_DEFAULT_UNROLL_MN
+ BGEMM_DEFAULT_UNROLL_MN,
+#else
+ MAX(BGEMM_DEFAULT_UNROLL_M, BGEMM_DEFAULT_UNROLL_N),
+#endif
+  BGEMM_ALIGN_K,
+  bgemm_kernelTS, bgemm_betaTS,
+  bgemm_incopyTS, bgemm_itcopyTS,
+  bgemm_oncopyTS, bgemm_otcopyTS,
+#endif
+
 #ifdef BUILD_BFLOAT16
   0, 0, 0,
   SBGEMM_DEFAULT_UNROLL_M, SBGEMM_DEFAULT_UNROLL_N,