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Diffstat (limited to 'src/protected_mode/uarch.rs')
| -rw-r--r-- | src/protected_mode/uarch.rs | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/src/protected_mode/uarch.rs b/src/protected_mode/uarch.rs new file mode 100644 index 0000000..b2b1201 --- /dev/null +++ b/src/protected_mode/uarch.rs @@ -0,0 +1,221 @@ +pub mod amd { + //! most information about instruction set extensions for microarchitectures here was sourced + //! from https://en.wikipedia.org/wiki/AMD_Accelerated_Processing_Unit#Feature_overview and + //! https://en.wikipedia.org/wiki/Template:AMD_x86_CPU_features. these mappings are best-effort + //! but fairly unused, so a critical eye should be kept towards these decoders rejecting + //! instructions they should not, or incorrectly accepting instructions. + //! + //! microarchitectures as defined here are with respect to flags reported by CPUID. notably, + //! `Zen` does not report `FMA4` support by `CPUID`, but instructions in that extension + //! reportedly function correctly (agner p217). + //! + //! [agner](https://www.agner.org/optimize/microarchitecture.pdf) + //! as retrieved 2020 may 19 + //! `sha256: 87ff152ae18c017dcbfb9f7ee6e88a9f971f6250fd15a70a3dd87c3546323bd5` + + use long_mode::InstDecoder; + + /// `k8` was the first AMD microarchitecture to implement x86_64, launched in 2003. while later + /// `k8`-based processors supported SSE3, these predefined decoders pick the lower end of + /// support - SSE2 and no later. + pub fn k8() -> InstDecoder { + InstDecoder::minimal() + } + + /// `k10` was the successor to `k8`, launched in 2007. `k10` cores extended SSE support through + /// to SSE4.2a, as well as consistent `cmov` support, among other features. + pub fn k10() -> InstDecoder { + k8() + .with_cmov() + .with_cmpxchg16b() + .with_svm() + .with_abm() + .with_lahfsahf() + .with_sse3() + .with_ssse3() + .with_sse4() + .with_sse4_2() + .with_sse4a() + } + + /// `Bulldozer` was the successor to `K10`, launched in 2011. `Bulldozer` cores include AVX + /// support among other extensions, and are notable for including `AESNI`. + pub fn bulldozer() -> InstDecoder { + k10() + .with_bmi1() + .with_aesni() + .with_pclmulqdq() + .with_f16c() + .with_avx() + .with_fma4() + .with_xop() + } + + /// `Piledriver` was the successor to `Bulldozer`, launched in 2012. + pub fn piledriver() -> InstDecoder { + bulldozer() + .with_tbm() + .with_fma3() + .with_fma4() + } + + /// `Steamroller` was the successor to `Piledriver`, launched in 2014. unlike `Piledriver` + /// cores, these cores do not support `TBM` or `FMA3`. + pub fn steamroller() -> InstDecoder { + bulldozer() + } + + /// `Excavator` was the successor to `Steamroller`, launched in 2015. + pub fn excavator() -> InstDecoder { + steamroller() + .with_movbe() + .with_bmi2() + .with_rdrand() + .with_avx() + .with_xop() + .with_bmi2() + .with_sha() + .with_rdrand() + .with_avx2() + } + + /// `Zen` was the successor to `Excavator`, launched in 2017. `Zen` cores extend SIMD + /// instructions to AVX2 and discarded FMA4, TBM, and XOP extensions. they also gained ADX, + /// SHA, RDSEED, and other extensions. + pub fn zen() -> InstDecoder { + k10() + .with_avx() + .with_avx2() + .with_bmi1() + .with_aesni() + .with_pclmulqdq() + .with_f16c() + .with_movbe() + .with_bmi2() + .with_rdrand() + .with_adx() + .with_sha() + .with_rdseed() + .with_fma3() + // TODO: XSAVEC, XSAVES, XRSTORS, CLFLUSHOPT, CLZERO? + } +} + +pub mod intel { + //! sourced by walking wikipedia pages. seriously! this stuff is kinda hard to figure out! + + use long_mode::InstDecoder; + + /// `Netburst` was the first Intel microarchitecture to implement x86_64, beginning with the + /// `Prescott` family launched in 2004. while the wider `Netburst` family launched in 2000 + /// with only SSE2, the first `x86_64`-supporting incarnation was `Prescott` which indeed + /// included SSE3. + pub fn netburst() -> InstDecoder { + InstDecoder::minimal() + .with_cmov() + .with_sse3() + } + + /// `Core` was the successor to `Netburst`, launched in 2006. it included up to SSE4, with + /// processors using this architecture shipped under the names "Merom", "Conroe", and + /// "Woodcrest", for mobile, desktop, and server processors respectively. not to be confused + /// with the later `Nehalem` microarchitecture that introduced the `Core i*` product lines, + /// `Core 2 *` processors used the `Core` architecture. + pub fn core() -> InstDecoder { + netburst() + .with_ssse3() + .with_sse4() + } + + /// `Peryn` was the successor to `Core`, launched in early 2008. it added SSE4.1, along with + /// virtualization extensions. + pub fn peryn() -> InstDecoder { + core() + .with_sse4_1() + } + + /// `Nehalem` was the successor to `Peryn`, launched in late 2008. not to be confused with the + /// earlier `Core` microarchitecture, the `Core i*` products were based on `Nehalem` cores. + /// `Nehalem` added SSE4.2 extensions, along with the `POPCNT` instruction. + pub fn nehalem() -> InstDecoder { + peryn() + .with_sse4_2() + .with_popcnt() + } + + /// `Westmere` was the successor to `Nehalem`, launched in 2010. it added AES-NI and CLMUL + /// extensions. + pub fn westmere() -> InstDecoder { + nehalem() + .with_aesni() + .with_pclmulqdq() + } + + /// `Sandy Bridge` was the successor to `Westmere`, launched in 2011. it added AVX + /// instructions. + pub fn sandybridge() -> InstDecoder { + westmere() + .with_avx() + } + + /// `Ivy Bridge` was the successor to `Sandy Bridge`, launched in 2012. it added F16C + /// extensions for 16-bit floating point conversion, and the RDRAND instruction. + pub fn ivybridge() -> InstDecoder { + sandybridge() + .with_f16c() + .with_rdrand() + } + + /// `Haswell` was the successor to `Ivy Bridge`, launched in 2013. it added several instruction + /// set extensions: AVX2, BMI1, BMI2, ABM, and FMA3. + pub fn haswell() -> InstDecoder { + ivybridge() + .with_bmi1() + .with_bmi2() + .with_abm() + .with_fma3() + .with_avx2() + } + + /// `Haswell-EX` was a variant of `Haswell` launched in 2015 with functional TSX. these cores + /// were shipped as `E7-48xx/E7-88xx v3` models of processors. + pub fn haswell_ex() -> InstDecoder { + haswell() + .with_tsx() + } + + /// `Broadwell` was the successor to `Haswell`, launched in late 2014. it added ADX, RDSEED, + /// and PREFETCHW, as well as broadly rolling out TSX. TSX is enabled on this decoder because + /// some chips of this microarchitecture rolled out with TSX, and lack of TSX seems to be + /// reported as an errata (for example, the `Broadwell-Y` line of parts). + pub fn broadwell() -> InstDecoder { + haswell_ex() + .with_adx() + .with_rdseed() + .with_prefetchw() + } + + /// `Skylake` was the successor to `Broadwell`, launched in mid 2015. it added MPX and SGX + /// extensions, as well as a mixed rollout of AVX512 in different subsets for different product + /// lines. + /// + /// AVX512 is not enabled on this decoder by default because there doesn't seem to be a lowest + /// common denominator: if you want a `Skylake` decoder with AVX512, something like the + /// following: + /// ``` + /// InstDecoder::skylake().with_avx512_f().with_avx512_dq() + /// ``` + /// is likely your best option. + pub fn skylake() -> InstDecoder { + broadwell() + .with_mpx() + .with_sgx() + } + + /// `Kaby Lake` was the successor to `Sky Lake`, launched in 2016. it adds no extensions to + /// x86_64 implementaiton beyond `skylake`. + pub fn kabylake() -> InstDecoder { + skylake() + } + // ice lake is shipping so that should probably be included... +} |