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| author | WANG Rui <wangrui@loongson.cn> | 2025-03-18 13:54:15 +0800 |
|---|---|---|
| committer | Amanieu d'Antras <amanieu@gmail.com> | 2025-03-20 22:26:36 +0000 |
| commit | ad03413c3912548e2bf400d91e29bd974e7ecdd7 (patch) | |
| tree | 99599e37664238cf642f16bc7e964c55e443fda2 /library/stdarch/crates/std_detect | |
| parent | c0fc23f2d894655ec747c5cde9f798f682903a1a (diff) | |
| download | rust-ad03413c3912548e2bf400d91e29bd974e7ecdd7.tar.gz rust-ad03413c3912548e2bf400d91e29bd974e7ecdd7.zip | |
std_detect: Add target features for LoongArch v1.1
Diffstat (limited to 'library/stdarch/crates/std_detect')
| -rw-r--r-- | library/stdarch/crates/std_detect/src/detect/arch/loongarch.rs | 15 | ||||
| -rw-r--r-- | library/stdarch/crates/std_detect/src/detect/os/linux/loongarch.rs | 13 |
2 files changed, 28 insertions, 0 deletions
diff --git a/library/stdarch/crates/std_detect/src/detect/arch/loongarch.rs b/library/stdarch/crates/std_detect/src/detect/arch/loongarch.rs index c55f4ea272b..5405ff74cf6 100644 --- a/library/stdarch/crates/std_detect/src/detect/arch/loongarch.rs +++ b/library/stdarch/crates/std_detect/src/detect/arch/loongarch.rs @@ -11,8 +11,13 @@ features! { /// * `"f"` /// * `"d"` /// * `"frecipe"` + /// * `"div32"` /// * `"lsx"` /// * `"lasx"` + /// * `"lam-bh"` + /// * `"lamcas"` + /// * `"ld-seq-sa"` + /// * `"scq"` /// * `"lbt"` /// * `"lvz"` /// * `"ual"` @@ -23,10 +28,20 @@ features! { /// D @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] frecipe: "frecipe"; /// Frecipe + @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] div32: "div32"; + /// Div32 @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lsx: "lsx"; /// LSX @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lasx: "lasx"; /// LASX + @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lam_bh: "lam-bh"; + /// LAM-BH + @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lamcas: "lamcas"; + /// LAM-CAS + @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] ld_seq_sa: "ld-seq-sa"; + /// LD-SEQ-SA + @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] scq: "scq"; + /// SCQ @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lbt: "lbt"; /// LBT @FEATURE: #[unstable(feature = "stdarch_loongarch_feature_detection", issue = "117425")] lvz: "lvz"; diff --git a/library/stdarch/crates/std_detect/src/detect/os/linux/loongarch.rs b/library/stdarch/crates/std_detect/src/detect/os/linux/loongarch.rs index a46a4a9d087..14cc7a73183 100644 --- a/library/stdarch/crates/std_detect/src/detect/os/linux/loongarch.rs +++ b/library/stdarch/crates/std_detect/src/detect/os/linux/loongarch.rs @@ -24,7 +24,20 @@ pub(crate) fn detect_features() -> cache::Initializer { options(pure, nomem, preserves_flags, nostack) ); } + let cpucfg3: usize; + unsafe { + asm!( + "cpucfg {}, {}", + out(reg) cpucfg3, in(reg) 3, + options(pure, nomem, preserves_flags, nostack) + ); + } enable_feature(&mut value, Feature::frecipe, bit::test(cpucfg2, 25)); + enable_feature(&mut value, Feature::div32, bit::test(cpucfg2, 26)); + enable_feature(&mut value, Feature::lam_bh, bit::test(cpucfg2, 27)); + enable_feature(&mut value, Feature::lamcas, bit::test(cpucfg2, 28)); + enable_feature(&mut value, Feature::scq, bit::test(cpucfg2, 30)); + enable_feature(&mut value, Feature::ld_seq_sa, bit::test(cpucfg3, 23)); // The values are part of the platform-specific [asm/hwcap.h][hwcap] // |