96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
#define RISCV_CUSTOM3 0x7B
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#include <vx_intrinsics.h>
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#include <stdio.h>
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#include <vx_print.h>
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inline void vx_wmma() {
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asm volatile (".insn r %0, 0, 0, x0, x0, x0" :: "i"(RISCV_CUSTOM3));
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}
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#include "test_data.h"
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void vx_wmma_load() {
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int tid = vx_thread_id();
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int tg = tid / 4;
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// load A
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int row = tid % 4;
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row += (tg * 8) % 16;
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row += (tg / 4) * 4;
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asm volatile ("flw f0, %0" :: "m"(A[row][0]));
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asm volatile ("flw f1, %0" :: "m"(A[row][1]));
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asm volatile ("flw f2, %0" :: "m"(A[row][2]));
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asm volatile ("flw f3, %0" :: "m"(A[row][3]));
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asm volatile ("flw f4, %0" :: "m"(A[row][4]));
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asm volatile ("flw f5, %0" :: "m"(A[row][5]));
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asm volatile ("flw f6, %0" :: "m"(A[row][6]));
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asm volatile ("flw f7, %0" :: "m"(A[row][7]));
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// load B
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int col = tid % 4;
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col += ((tg % 4) / 2) * 8;
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col += (tg / 4) * 4;
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asm volatile ("flw f8 , %0" :: "m"(B[0][col]));
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asm volatile ("flw f9 , %0" :: "m"(B[1][col]));
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asm volatile ("flw f10, %0" :: "m"(B[2][col]));
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asm volatile ("flw f11, %0" :: "m"(B[3][col]));
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asm volatile ("flw f12, %0" :: "m"(B[4][col]));
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asm volatile ("flw f13, %0" :: "m"(B[5][col]));
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asm volatile ("flw f14, %0" :: "m"(B[6][col]));
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asm volatile ("flw f15, %0" :: "m"(B[7][col]));
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// load C
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col = ((tg % 4) / 2) * 8;
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row = (tg * 8) % 16;
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row += (tg / 4) * 4;
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row += (tid % 4) % 2;
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col += ((tid % 4) / 2) * 2;
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asm volatile ("flw f16, %0" :: "m"(C[row+0][col+0]));
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asm volatile ("flw f17, %0" :: "m"(C[row+0][col+1]));
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asm volatile ("flw f18, %0" :: "m"(C[row+2][col+0]));
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asm volatile ("flw f19, %0" :: "m"(C[row+2][col+1]));
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asm volatile ("flw f20, %0" :: "m"(C[row+0][col+4]));
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asm volatile ("flw f21, %0" :: "m"(C[row+0][col+5]));
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asm volatile ("flw f22, %0" :: "m"(C[row+2][col+4]));
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asm volatile ("flw f23, %0" :: "m"(C[row+2][col+5]));
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}
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float results[32*8];
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void store_wmma_result() {
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int tid = vx_thread_id();
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asm volatile ("fsw f16, %0" :: "m"(results[tid*8+0]));
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asm volatile ("fsw f17, %0" :: "m"(results[tid*8+1]));
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asm volatile ("fsw f18, %0" :: "m"(results[tid*8+2]));
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asm volatile ("fsw f19, %0" :: "m"(results[tid*8+3]));
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asm volatile ("fsw f20, %0" :: "m"(results[tid*8+4]));
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asm volatile ("fsw f21, %0" :: "m"(results[tid*8+5]));
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asm volatile ("fsw f22, %0" :: "m"(results[tid*8+6]));
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asm volatile ("fsw f23, %0" :: "m"(results[tid*8+7]));
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}
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void print_wmma_result() {
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for (int tid = 0; tid < 32; tid += 1) {
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for (int reg = 0; reg < 8; reg += 1) {
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vx_printf("thread %d, f%d: %x\n", tid, 16+reg, *((int*) &results[tid*8+reg]));
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}
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}
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}
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int main()
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{
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vx_tmc(-1);
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vx_wmma_load();
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vx_wmma();
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store_wmma_result();
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vx_tmc(1);
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// print_wmma_result();
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return 0;
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} |