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CPU (Linux): support up to 128-socket boards

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This commit is contained in:
Carter Li
2024-11-26 21:49:28 +08:00
parent ee564de461
commit 69a7e64e48
1 changed files with 7 additions and 4 deletions
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src/detection/cpu/cpu_linux.c
+7 -4
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@@ -467,19 +467,22 @@ FF_MAYBE_UNUSED static void detectArmSoc(FFCPUResult* cpu)
FF_MAYBE_UNUSED static uint16_t getPackageCount(FFstrbuf* cpuinfo)
{
const char* p = cpuinfo->chars;
uint64_t bits = 0;
uint64_t low = 0, high = 0;
while ((p = memmem(p, cpuinfo->length - (uint32_t) (p - cpuinfo->chars), "\nphysical id\t:", strlen("\nphysical id\t:"))))
{
if (!p) break;
p += strlen("\nphysical id\t:");
char* pend;
uint32_t id = (uint32_t) strtoul(p, &pend, 10);
unsigned long id = strtoul(p, &pend, 10);
if (__builtin_expect(id > 64, false)) // Do 129-socket boards exist?
high |= 1 << (id - 64);
else
low |= 1 << id;
p = pend;
bits |= 1 << id;
}
return (uint16_t) __builtin_popcountll(bits);
return (uint16_t) (__builtin_popcountll(low) + __builtin_popcountll(high));
}
const char* ffDetectCPUImpl(const FFCPUOptions* options, FFCPUResult* cpu)