/* BLIS An object-based framework for developing high-performance BLAS-like libraries. Copyright (C) 2014, The University of Texas at Austin Copyright (C) 2021, The University of Tokyo Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name(s) of the copyright holder(s) nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // Supplimentary fixed-size gemmsup. #include "blis.h" #include "assert.h" // Label locality & misc. #include "../../armv8a_asm_utils.h" #define DGEMM_3X1X2_NKER_SUBLOOP(C0,C1,C2,A0,A1,A2,B) \ " fmla v"#C0".2d, v"#A0".2d, v"#B".2d \n\t" \ " fmla v"#C1".2d, v"#A1".2d, v"#B".2d \n\t" \ " fmla v"#C2".2d, v"#A2".2d, v"#B".2d \n\t" #define DGEMM_3X4X2_K_MKER_LOOP_PLAIN(C00,C01,C02,C03,C10,C11,C12,C13,C20,C21,C22,C23,A0,A1,A2,B0,B1,B2,B3) \ DGEMM_3X1X2_NKER_SUBLOOP(C00,C10,C20,A0,A1,A2,B0) \ DGEMM_3X1X2_NKER_SUBLOOP(C01,C11,C21,A0,A1,A2,B1) \ DGEMM_3X1X2_NKER_SUBLOOP(C02,C12,C22,A0,A1,A2,B2) \ DGEMM_3X1X2_NKER_SUBLOOP(C03,C13,C23,A0,A1,A2,B3) // For row-storage of C. #define DLOADC_2V_R_FWD(C0,C1,CADDR,CSHIFT,RSC) \ DLOAD2V(C0,C1,CADDR,CSHIFT) \ " add "#CADDR", "#CADDR", "#RSC" \n\t" #define DSTOREC_2V_R_FWD(C0,C1,CADDR,CSHIFT,RSC) \ DSTORE2V(C0,C1,CADDR,CSHIFT) \ " add "#CADDR", "#CADDR", "#RSC" \n\t" // For column-storage of C. #define DLOADC_1V_1ELM_C_FWD(C0,CSCALAR,CIDX,CADDR,CSHIFT,CSC) \ DLOAD1V(C0,CADDR,CSHIFT) \ " add "#CADDR", "#CADDR", #"#CSHIFT"+16 \n\t" \ " ld1 {v"#CSCALAR".d}["#CIDX"], ["#CADDR"] \n\t" \ " sub "#CADDR", "#CADDR", #"#CSHIFT"+16 \n\t" \ " add "#CADDR", "#CADDR", "#CSC" \n\t" #define DSTOREC_1V_1ELM_C_FWD(C0,CSCALAR,CIDX,CADDR,CSHIFT,CSC) \ DSTORE1V(C0,CADDR,CSHIFT) \ " add "#CADDR", "#CADDR", #"#CSHIFT"+16 \n\t" \ " st1 {v"#CSCALAR".d}["#CIDX"], ["#CADDR"] \n\t" \ " sub "#CADDR", "#CADDR", #"#CSHIFT"+16 \n\t" \ " add "#CADDR", "#CADDR", "#CSC" \n\t" #define DSCALE6V(V0,V1,V2,V3,V4,V5,A,IDX) \ DSCALE4V(V0,V1,V2,V3,A,IDX) \ DSCALE2V(V4,V5,A,IDX) #define DSCALEA6V(D0,D1,D2,D3,D4,D5,S0,S1,S2,S3,S4,S5,A,IDX) \ DSCALEA4V(D0,D1,D2,D3,S0,S1,S2,S3,A,IDX) \ DSCALEA2V(D4,D5,S4,S5,A,IDX) void bli_dgemmsup_rd_armv8a_asm_3x4 ( conj_t conja, conj_t conjb, dim_t m0, dim_t n0, dim_t k0, const void* alpha, const void* a, inc_t rs_a0, inc_t cs_a0, const void* b, inc_t rs_b0, inc_t cs_b0, const void* beta, void* c, inc_t rs_c0, inc_t cs_c0, auxinfo_t* data, const cntx_t* cntx ) { assert( m0 == 3 ); assert( n0 == 4 ); // Typecast local copies of integers in case dim_t and inc_t are a // different size than is expected by load instructions. uint64_t k_mker = k0 / 4; uint64_t k_left = k0 % 4; uint64_t rs_a = rs_a0; uint64_t cs_b = cs_b0; uint64_t rs_c = rs_c0; uint64_t cs_c = cs_c0; assert( cs_a0 == 1 ); assert( rs_b0 == 1 ); __asm__ volatile ( " ldr x0, %[a] \n\t" " ldr x1, %[b] \n\t" " ldr x2, %[rs_a] \n\t" // Row-skip of A. " ldr x3, %[cs_b] \n\t" // Column-skip of B. " \n\t" " ldr x5, %[c] \n\t" " ldr x6, %[rs_c] \n\t" // Row-skip of C. " ldr x7, %[cs_c] \n\t" // Column-skip of C. " \n\t" " \n\t" // Multiply some address skips by sizeof(double). " lsl x2, x2, #3 \n\t" // rs_a " lsl x3, x3, #3 \n\t" // cs_b " lsl x6, x6, #3 \n\t" // rs_c " lsl x7, x7, #3 \n\t" // cs_c " \n\t" " ldr x4, %[k_mker] \n\t" " ldr x8, %[k_left] \n\t" " \n\t" // Storage scheme: // V[ 0:11] <- C // V[12:14] <- A // V[16:19] <- B // Under this scheme, the following is defined: #define DGEMM_3X4X2_K_MKER_LOOP_PLAIN_LOC(A0,A1,A2,B0,B1,B2,B3) \ DGEMM_3X4X2_K_MKER_LOOP_PLAIN(0,1,2,3,4,5,6,7,8,9,10,11,A0,A1,A2,B0,B1,B2,B3) // Load from memory. LABEL(LOAD_ABC) " \n\t" // No-microkernel early return is a must " cmp x4, #0 \n\t" // to avoid out-of-boundary read. BEQ(CLEAR_CCOLS) " \n\t" " mov x11, x1 \n\t" // Load B. " ldr q16, [x11] \n\t" " add x11, x11, x3 \n\t" " ldr q17, [x11] \n\t" " add x11, x11, x3 \n\t" " ldr q18, [x11] \n\t" " add x11, x11, x3 \n\t" " ldr q19, [x11] \n\t" " add x1, x1, #16 \n\t" " \n\t" " mov x14, x0 \n\t" // Load A. " ldr q12, [x14] \n\t" " add x14, x14, x2 \n\t" " ldr q13, [x14] \n\t" " add x14, x14, x2 \n\t" " ldr q14, [x14] \n\t" " add x0, x0, #16 \n\t" LABEL(CLEAR_CCOLS) CLEAR8V(0,1,2,3,4,5,6,7) CLEAR4V(8,9,10,11) // No-microkernel early return, once again. BEQ(K_LEFT_LOOP) // // Microkernel is defined here as: #define DGEMM_3X4X2_K_MKER_LOOP_PLAIN_LOC_FWD(A0,A1,A2,B0,B1,B2,B3) \ DGEMM_3X4X2_K_MKER_LOOP_PLAIN_LOC(A0,A1,A2,B0,B1,B2,B3) \ "mov x11, x1 \n\t" \ "ldr q"#B0", [x11] \n\t" \ "add x11, x11, x3 \n\t" \ "ldr q"#B1", [x11] \n\t" \ "add x11, x11, x3 \n\t" \ "ldr q"#B2", [x11] \n\t" \ "add x11, x11, x3 \n\t" \ "ldr q"#B3", [x11] \n\t" \ "add x1, x1, #16 \n\t" \ "mov x14, x0 \n\t" \ "ldr q"#A0", [x14] \n\t" \ "add x14, x14, x2 \n\t" \ "ldr q"#A1", [x14] \n\t" \ "add x14, x14, x2 \n\t" \ "ldr q"#A2", [x14] \n\t" \ "add x0, x0, #16 \n\t" // Start microkernel loop. LABEL(K_MKER_LOOP) DGEMM_3X4X2_K_MKER_LOOP_PLAIN_LOC_FWD(12,13,14,16,17,18,19) " \n\t" // Decrease counter before final replica. " subs x4, x4, #1 \n\t" // Branch early to avoid reading excess mem. BEQ(FIN_MKER_LOOP) DGEMM_3X4X2_K_MKER_LOOP_PLAIN_LOC_FWD(12,13,14,16,17,18,19) BRANCH(K_MKER_LOOP) // // Final microkernel loop. LABEL(FIN_MKER_LOOP) DGEMM_3X4X2_K_MKER_LOOP_PLAIN_LOC(12,13,14,16,17,18,19) // // If major kernel is executed, // an additional depth-summation is required. " faddp v0.2d, v0.2d, v1.2d \n\t" // Line 0. " faddp v1.2d, v2.2d, v3.2d \n\t" " faddp v2.2d, v4.2d, v5.2d \n\t" // Line 1. " faddp v3.2d, v6.2d, v7.2d \n\t" " faddp v4.2d, v8.2d, v9.2d \n\t" // Line 2. " faddp v5.2d, v10.2d, v11.2d \n\t" " \n\t" // Loops left behind microkernels. LABEL(K_LEFT_LOOP) " cmp x8, #0 \n\t" // End of exec. BEQ(WRITE_MEM_PREP) " mov x11, x1 \n\t" // Load B row. " ld1 {v28.d}[0], [x11], x3 \n\t" " ld1 {v28.d}[1], [x11], x3 \n\t" " ld1 {v29.d}[0], [x11], x3 \n\t" " ld1 {v29.d}[1], [x11], x3 \n\t" " add x1, x1, #8 \n\t" " mov x14, x0 \n\t" // Load A column. " ld1 {v24.d}[0], [x14], x2 \n\t" " ld1 {v24.d}[1], [x14], x2 \n\t" " ld1 {v25.d}[0], [x14], x2 \n\t" " add x0, x0, #8 \n\t" " fmla v0.2d, v28.2d, v24.d[0] \n\t" " fmla v1.2d, v29.2d, v24.d[0] \n\t" " fmla v2.2d, v28.2d, v24.d[1] \n\t" " fmla v3.2d, v29.2d, v24.d[1] \n\t" " fmla v4.2d, v28.2d, v25.d[0] \n\t" " fmla v5.2d, v29.2d, v25.d[0] \n\t" " sub x8, x8, #1 \n\t" BRANCH(K_LEFT_LOOP) // // Scale and write to memory. LABEL(WRITE_MEM_PREP) " ldr x4, %[alpha] \n\t" // Load alpha & beta (address). " ldr x8, %[beta] \n\t" " ld1r {v30.2d}, [x4] \n\t" // Load alpha & beta (value). " ld1r {v31.2d}, [x8] \n\t" DSCALE6V(0,1,2,3,4,5,30,0) " \n\t" " mov x9, x5 \n\t" // C address for loading. " \n\t" // C address for storing is x5 itself. " cmp x7, #8 \n\t" // Check for column-storage. BNE(WRITE_MEM_C) // // C storage in rows. LABEL(WRITE_MEM_R) " fcmp d31, #0.0 \n\t" BEQ(ZERO_BETA_R) DLOADC_2V_R_FWD(12,13,x9,0,x6) DLOADC_2V_R_FWD(14,15,x9,0,x6) DLOADC_2V_R_FWD(16,17,x9,0,x6) DSCALEA6V(0,1,2,3,4,5,12,13,14,15,16,17,31,0) LABEL(ZERO_BETA_R) DSTOREC_2V_R_FWD(0,1,x5,0,x6) DSTOREC_2V_R_FWD(2,3,x5,0,x6) DSTOREC_2V_R_FWD(4,5,x5,0,x6) BRANCH(END_WRITE_MEM) // // C storage in columns. LABEL(WRITE_MEM_C) " trn1 v6.2d, v0.2d, v2.2d \n\t" " trn2 v7.2d, v0.2d, v2.2d \n\t" " trn1 v8.2d, v1.2d, v3.2d \n\t" " trn2 v9.2d, v1.2d, v3.2d \n\t" " fcmp d31, #0.0 \n\t" BEQ(ZERO_BETA_C) DLOADC_1V_1ELM_C_FWD(12,20,0,x9,0,x7) DLOADC_1V_1ELM_C_FWD(13,20,1,x9,0,x7) DLOADC_1V_1ELM_C_FWD(14,21,0,x9,0,x7) DLOADC_1V_1ELM_C_FWD(15,21,1,x9,0,x7) DSCALEA6V(6,7,8,9,4,5,12,13,14,15,20,21,31,0) LABEL(ZERO_BETA_C) DSTOREC_1V_1ELM_C_FWD(6,4,0,x5,0,x7) DSTOREC_1V_1ELM_C_FWD(7,4,1,x5,0,x7) DSTOREC_1V_1ELM_C_FWD(8,5,0,x5,0,x7) DSTOREC_1V_1ELM_C_FWD(9,5,1,x5,0,x7) // // End of this microkernel. LABEL(END_WRITE_MEM) // // End of execution. LABEL(END_EXEC) : : [a] "m" (a), [b] "m" (b), [c] "m" (c), [rs_a] "m" (rs_a), [cs_b] "m" (cs_b), [rs_c] "m" (rs_c), [cs_c] "m" (cs_c), [k_mker] "m" (k_mker), [k_left] "m" (k_left), [alpha] "m" (alpha), [beta] "m" (beta) : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", "x8", "x9", "x10","x11","x12","x13","x14", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9", "v10","v11","v12","v13","v14","v15", "v16","v17","v18","v19","v20","v21","v22","v23", "v24","v25","v26","v27","v28","v29","v30","v31" ); }