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avx512: CPU detection and platform hints

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This commit is contained in:
Matthew Barr
2016-10-04 11:18:10 +11:00
parent 8a56d16d57
commit 91db20d8eb
12 changed files with 164 additions and 27 deletions
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11
src/database.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015-2016, Intel Corporation
* Copyright (c) 2015-2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -114,7 +114,8 @@ hs_error_t hs_serialize_database(const hs_database_t *db, char **bytes,
static
hs_error_t db_check_platform(const u64a p) {
if (p != hs_current_platform
&& p != hs_current_platform_no_avx2) {
&& p != hs_current_platform_no_avx2
&& p != hs_current_platform_no_avx512) {
return HS_DB_PLATFORM_ERROR;
}
// passed all checks
@@ -366,7 +367,9 @@ hs_error_t print_database_string(char **s, u32 version, const platform_t plat,
u8 minor = (version >> 16) & 0xff;
u8 major = (version >> 24) & 0xff;
const char *avx2 = (plat & HS_PLATFORM_NOAVX2) ? "NOAVX2" : " AVX2";
const char *features = (plat & HS_PLATFORM_NOAVX512)
? (plat & HS_PLATFORM_NOAVX2) ? "" : "AVX2"
: "AVX512";
const char *mode = NULL;
@@ -395,7 +398,7 @@ hs_error_t print_database_string(char **s, u32 version, const platform_t plat,
// that don't have snprintf but have a workalike.
int p_len = SNPRINTF_COMPAT(
buf, len, "Version: %u.%u.%u Features: %s Mode: %s",
major, minor, release, avx2, mode);
major, minor, release, features, mode);
if (p_len < 0) {
DEBUG_PRINTF("snprintf output error, returned %d\n", p_len);
hs_misc_free(buf);