ydb/contrib/libs/isa-l/erasure_code/ec_highlevel_func.c

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  are met:
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      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
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#include <limits.h>
#include "erasure_code.h"

#if __x86_64__  || __i386__ || _M_X64 || _M_IX86
void ec_encode_data_sse(int len, int k, int rows, unsigned char *g_tbls, unsigned char **data,
			unsigned char **coding)
{

	if (len < 16) {
		ec_encode_data_base(len, k, rows, g_tbls, data, coding);
		return;
	}

	while (rows >= 4) {
		gf_4vect_dot_prod_sse(len, k, g_tbls, data, coding);
		g_tbls += 4 * k * 32;
		coding += 4;
		rows -= 4;
	}
	switch (rows) {
	case 3:
		gf_3vect_dot_prod_sse(len, k, g_tbls, data, coding);
		break;
	case 2:
		gf_2vect_dot_prod_sse(len, k, g_tbls, data, coding);
		break;
	case 1:
		gf_vect_dot_prod_sse(len, k, g_tbls, data, *coding);
		break;
	case 0:
		break;
	}

}

void ec_encode_data_avx(int len, int k, int rows, unsigned char *g_tbls, unsigned char **data,
			unsigned char **coding)
{
	if (len < 16) {
		ec_encode_data_base(len, k, rows, g_tbls, data, coding);
		return;
	}

	while (rows >= 4) {
		gf_4vect_dot_prod_avx(len, k, g_tbls, data, coding);
		g_tbls += 4 * k * 32;
		coding += 4;
		rows -= 4;
	}
	switch (rows) {
	case 3:
		gf_3vect_dot_prod_avx(len, k, g_tbls, data, coding);
		break;
	case 2:
		gf_2vect_dot_prod_avx(len, k, g_tbls, data, coding);
		break;
	case 1:
		gf_vect_dot_prod_avx(len, k, g_tbls, data, *coding);
		break;
	case 0:
		break;
	}

}

void ec_encode_data_avx2(int len, int k, int rows, unsigned char *g_tbls, unsigned char **data,
			 unsigned char **coding)
{

	if (len < 32) {
		ec_encode_data_base(len, k, rows, g_tbls, data, coding);
		return;
	}

	while (rows >= 4) {
		gf_4vect_dot_prod_avx2(len, k, g_tbls, data, coding);
		g_tbls += 4 * k * 32;
		coding += 4;
		rows -= 4;
	}
	switch (rows) {
	case 3:
		gf_3vect_dot_prod_avx2(len, k, g_tbls, data, coding);
		break;
	case 2:
		gf_2vect_dot_prod_avx2(len, k, g_tbls, data, coding);
		break;
	case 1:
		gf_vect_dot_prod_avx2(len, k, g_tbls, data, *coding);
		break;
	case 0:
		break;
	}

}

#ifdef HAVE_AS_KNOWS_AVX512

extern int gf_vect_dot_prod_avx512(int len, int k, unsigned char *g_tbls, unsigned char **data,
				   unsigned char *dest);
extern int gf_2vect_dot_prod_avx512(int len, int k, unsigned char *g_tbls,
				    unsigned char **data, unsigned char **coding);
extern int gf_3vect_dot_prod_avx512(int len, int k, unsigned char *g_tbls,
				    unsigned char **data, unsigned char **coding);
extern int gf_4vect_dot_prod_avx512(int len, int k, unsigned char *g_tbls,
				    unsigned char **data, unsigned char **coding);
extern void gf_vect_mad_avx512(int len, int vec, int vec_i, unsigned char *gftbls,
			       unsigned char *src, unsigned char *dest);
extern void gf_2vect_mad_avx512(int len, int vec, int vec_i, unsigned char *gftbls,
				unsigned char *src, unsigned char **dest);
extern void gf_3vect_mad_avx512(int len, int vec, int vec_i, unsigned char *gftbls,
				unsigned char *src, unsigned char **dest);
extern void gf_4vect_mad_avx512(int len, int vec, int vec_i, unsigned char *gftbls,
				unsigned char *src, unsigned char **dest);

void ec_encode_data_avx512(int len, int k, int rows, unsigned char *g_tbls,
			   unsigned char **data, unsigned char **coding)
{

	if (len < 64) {
		ec_encode_data_base(len, k, rows, g_tbls, data, coding);
		return;
	}

	while (rows >= 4) {
		gf_4vect_dot_prod_avx512(len, k, g_tbls, data, coding);
		g_tbls += 4 * k * 32;
		coding += 4;
		rows -= 4;
	}
	switch (rows) {
	case 3:
		gf_3vect_dot_prod_avx512(len, k, g_tbls, data, coding);
		break;
	case 2:
		gf_2vect_dot_prod_avx512(len, k, g_tbls, data, coding);
		break;
	case 1:
		gf_vect_dot_prod_avx512(len, k, g_tbls, data, *coding);
		break;
	case 0:
		break;
	}
}

void ec_encode_data_update_avx512(int len, int k, int rows, int vec_i, unsigned char *g_tbls,
				  unsigned char *data, unsigned char **coding)
{
	if (len < 64) {
		ec_encode_data_update_base(len, k, rows, vec_i, g_tbls, data, coding);
		return;
	}

	while (rows >= 4) {
		gf_4vect_mad_avx512(len, k, vec_i, g_tbls, data, coding);
		g_tbls += 4 * k * 32;
		coding += 4;
		rows -= 4;
	}
	switch (rows) {
	case 3:
		gf_3vect_mad_avx512(len, k, vec_i, g_tbls, data, coding);
		break;
	case 2:
		gf_2vect_mad_avx512(len, k, vec_i, g_tbls, data, coding);
		break;
	case 1:
		gf_vect_mad_avx512(len, k, vec_i, g_tbls, data, *coding);
		break;
	case 0:
		break;
	}
}

#endif // HAVE_AS_KNOWS_AVX512

#if __WORDSIZE == 64 || _WIN64 || __x86_64__

void ec_encode_data_update_sse(int len, int k, int rows, int vec_i, unsigned char *g_tbls,
			       unsigned char *data, unsigned char **coding)
{
	if (len < 16) {
		ec_encode_data_update_base(len, k, rows, vec_i, g_tbls, data, coding);
		return;
	}

	while (rows > 6) {
		gf_6vect_mad_sse(len, k, vec_i, g_tbls, data, coding);
		g_tbls += 6 * k * 32;
		coding += 6;
		rows -= 6;
	}
	switch (rows) {
	case 6:
		gf_6vect_mad_sse(len, k, vec_i, g_tbls, data, coding);
		break;
	case 5:
		gf_5vect_mad_sse(len, k, vec_i, g_tbls, data, coding);
		break;
	case 4:
		gf_4vect_mad_sse(len, k, vec_i, g_tbls, data, coding);
		break;
	case 3:
		gf_3vect_mad_sse(len, k, vec_i, g_tbls, data, coding);
		break;
	case 2:
		gf_2vect_mad_sse(len, k, vec_i, g_tbls, data, coding);
		break;
	case 1:
		gf_vect_mad_sse(len, k, vec_i, g_tbls, data, *coding);
		break;
	case 0:
		break;
	}

}

void ec_encode_data_update_avx(int len, int k, int rows, int vec_i, unsigned char *g_tbls,
			       unsigned char *data, unsigned char **coding)
{
	if (len < 16) {
		ec_encode_data_update_base(len, k, rows, vec_i, g_tbls, data, coding);
		return;
	}
	while (rows > 6) {
		gf_6vect_mad_avx(len, k, vec_i, g_tbls, data, coding);
		g_tbls += 6 * k * 32;
		coding += 6;
		rows -= 6;
	}
	switch (rows) {
	case 6:
		gf_6vect_mad_avx(len, k, vec_i, g_tbls, data, coding);
		break;
	case 5:
		gf_5vect_mad_avx(len, k, vec_i, g_tbls, data, coding);
		break;
	case 4:
		gf_4vect_mad_avx(len, k, vec_i, g_tbls, data, coding);
		break;
	case 3:
		gf_3vect_mad_avx(len, k, vec_i, g_tbls, data, coding);
		break;
	case 2:
		gf_2vect_mad_avx(len, k, vec_i, g_tbls, data, coding);
		break;
	case 1:
		gf_vect_mad_avx(len, k, vec_i, g_tbls, data, *coding);
		break;
	case 0:
		break;
	}

}

void ec_encode_data_update_avx2(int len, int k, int rows, int vec_i, unsigned char *g_tbls,
				unsigned char *data, unsigned char **coding)
{
	if (len < 32) {
		ec_encode_data_update_base(len, k, rows, vec_i, g_tbls, data, coding);
		return;
	}
	while (rows > 6) {
		gf_6vect_mad_avx2(len, k, vec_i, g_tbls, data, coding);
		g_tbls += 6 * k * 32;
		coding += 6;
		rows -= 6;
	}
	switch (rows) {
	case 6:
		gf_6vect_mad_avx2(len, k, vec_i, g_tbls, data, coding);
		break;
	case 5:
		gf_5vect_mad_avx2(len, k, vec_i, g_tbls, data, coding);
		break;
	case 4:
		gf_4vect_mad_avx2(len, k, vec_i, g_tbls, data, coding);
		break;
	case 3:
		gf_3vect_mad_avx2(len, k, vec_i, g_tbls, data, coding);
		break;
	case 2:
		gf_2vect_mad_avx2(len, k, vec_i, g_tbls, data, coding);
		break;
	case 1:
		gf_vect_mad_avx2(len, k, vec_i, g_tbls, data, *coding);
		break;
	case 0:
		break;
	}

}

#endif //__WORDSIZE == 64 || _WIN64 || __x86_64__
#endif //__x86_64__  || __i386__ || _M_X64 || _M_IX86

struct slver {
	unsigned short snum;
	unsigned char ver;
	unsigned char core;
};

// Version info
struct slver ec_init_tables_slver_00010068;
struct slver ec_init_tables_slver = { 0x0068, 0x01, 0x00 };

struct slver ec_encode_data_sse_slver_00020069;
struct slver ec_encode_data_sse_slver = { 0x0069, 0x02, 0x00 };