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Add core/hyperthread count to `core:sys/info` for Windows and Linux. TODO: Linux RISCV, Linux ARM, Darwin, and the BSDs.
75 lines
2.3 KiB
Odin
75 lines
2.3 KiB
Odin
#+build arm32, arm64
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package sysinfo
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import "core:sys/unix"
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_ :: unix
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CPU_Feature :: enum u64 {
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// Advanced SIMD & floating-point capabilities:
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asimd, // General support for Advanced SIMD instructions/neon.
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floatingpoint, // General support for floating-point instructions.
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asimdhp, // Advanced SIMD half-precision conversion instructions.
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bf16, // Storage and arithmetic instructions of the Brain Floating Point (BFloat16) data type.
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fcma, // Floating-point complex number instructions.
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fhm, // Floating-point half-precision multiplication instructions.
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fp16, // General half-precision floating-point data processing instructions.
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frint, // Floating-point to integral valued floating-point number rounding instructions.
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i8mm, // Advanced SIMD int8 matrix multiplication instructions.
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jscvt, // JavaScript conversion instruction.
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rdm, // Advanced SIMD rounding double multiply accumulate instructions.
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flagm, // Condition flag manipulation instructions.
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flagm2, // Enhancements to condition flag manipulation instructions.
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crc32, // CRC32 instructions.
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lse, // Atomic instructions to support large systems.
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lse2, // Changes to single-copy atomicity and alignment requirements for loads and stores for large systems.
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lrcpc, // Load-acquire Release Consistency processor consistent (RCpc) instructions.
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lrcpc2, // Load-acquire Release Consistency processor consistent (RCpc) instructions version 2.
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aes,
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pmull,
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sha1,
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sha256,
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sha512,
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sha3,
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sb, // Barrier instruction to control speculation.
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ssbs, // Instructions to control speculation of loads and stores.
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}
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CPU_Features :: distinct bit_set[CPU_Feature; u64]
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CPU :: struct {
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name: Maybe(string),
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features: Maybe(CPU_Features),
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physical_cores: int,
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logical_cores: int,
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}
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cpu: CPU
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@(private)
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cpu_name_buf: [128]byte
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@(init, private)
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init_cpu_name :: proc "contextless" () {
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generic := true
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when ODIN_OS == .Darwin {
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if unix.sysctlbyname("machdep.cpu.brand_string", &cpu_name_buf) {
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cpu.name = string(cstring(rawptr(&cpu_name_buf)))
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generic = false
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}
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}
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if generic {
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when ODIN_ARCH == .arm64 {
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copy(cpu_name_buf[:], "ARM64")
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cpu.name = string(cpu_name_buf[:len("ARM64")])
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} else {
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copy(cpu_name_buf[:], "ARM")
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cpu.name = string(cpu_name_buf[:len("ARM")])
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}
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}
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}
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