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[v1.05][ARM] Preeliminary support for SVE detection (#259)

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Dr-Noob
2024-08-10 11:06:28 +01:00
parent e42f04cca8
commit 90624b9aaa
6 changed files with 65 additions and 3 deletions
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28
src/arm/midr.c
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@@ -19,6 +19,7 @@
#include "udev.h"
#include "midr.h"
#include "uarch.h"
#include "sve.h"
bool cores_are_equal(int c1pos, int c2pos, uint32_t* midr_array, int32_t* freq_array) {
return midr_array[c1pos] == midr_array[c2pos] && freq_array[c1pos] == freq_array[c2pos];
@@ -168,6 +169,15 @@ struct features* get_features_info(void) {
feat->SHA1 = hwcaps & HWCAP_SHA1;
feat->SHA2 = hwcaps & HWCAP_SHA2;
feat->NEON = hwcaps & HWCAP_ASIMD;
feat->SVE = hwcaps & HWCAP_SVE;
hwcaps = getauxval(AT_HWCAP2);
if (errno == ENOENT) {
printWarn("Unable to retrieve AT_HWCAP2 using getauxval");
}
else {
feat->SVE2 = hwcaps & HWCAP2_SVE2;
}
}
#else
else {
@@ -183,6 +193,8 @@ struct features* get_features_info(void) {
feat->CRC32 = hwcaps & HWCAP2_CRC32;
feat->SHA1 = hwcaps & HWCAP2_SHA1;
feat->SHA2 = hwcaps & HWCAP2_SHA2;
feat->SVE = false;
feat->SVE2 = false;
}
#endif // ifdef __aarch64__
#elif defined __APPLE__ || __MACH__
@@ -192,8 +204,14 @@ struct features* get_features_info(void) {
feat->SHA1 = true;
feat->SHA2 = true;
feat->NEON = true;
feat->SVE = false;
feat->SVE2 = false;
#endif // ifdef __linux__
if (feat->SVE || feat->SVE2) {
feat->cntb = sve_cntb();
}
return feat;
}
@@ -430,7 +448,7 @@ char* get_str_topology(struct cpuInfo* cpu, struct topology* topo, bool dual_soc
char* get_str_features(struct cpuInfo* cpu) {
struct features* feat = cpu->feat;
uint32_t max_len = strlen("NEON,SHA1,SHA2,AES,CRC32,") + 1;
uint32_t max_len = strlen("NEON,SHA1,SHA2,AES,CRC32,SVE,SVE2") + 1;
uint32_t len = 0;
char* string = ecalloc(max_len, sizeof(char));
@@ -438,6 +456,14 @@ char* get_str_features(struct cpuInfo* cpu) {
strcat(string, "NEON,");
len += 5;
}
if(feat->SVE) {
strcat(string, "SVE,");
len += 4;
}
if(feat->SVE2) {
strcat(string, "SVE2,");
len += 5;
}
if(feat->SHA1) {
strcat(string, "SHA1,");
len += 5;