20 lines
416 B
20 lines
416 B
#ifndef _SYNC_UTILS_H_
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#define _SYNC_UTILS_H_
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static inline void sync_barrier(volatile int *counter, int all) {
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int local;
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asm volatile("amoadd.w %0, %2, (%1)\n"
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: "=r"(local)
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: "r"(counter), "r"(1)
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: "memory");
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if (local + 1 < all) {
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do {
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asm volatile("lw %0, (%1)\n" : "=r"(local) : "r"(counter) : "memory");
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} while (local < all);
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}
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}
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#endif |