From 34c2b5e9d1b15ab9d8988f7919df967f3c405187 Mon Sep 17 00:00:00 2001
From: xtex <xtex@astrafall.org>
Date: Sun, 8 Mar 2026 08:53:48 +0800
Subject: [PATCH] std.os.linux: add LoongArch HWCAP bits

See also arch/loongarch/include/uapi/asm/hwcap.h in Linux kernel.

SC.Q was added in kernel v7.0.

Change-Id: Ib4ddd451ab16d52b2578f8b97c9c3365286719cd
Signed-off-by: xtex <xtex@astrafall.org>
---
 lib/std/os/linux/loongarch32.zig | 19 +++++++++++++++++++
 lib/std/os/linux/loongarch64.zig | 19 +++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/lib/std/os/linux/loongarch32.zig b/lib/std/os/linux/loongarch32.zig
index c5d1589aa3df476dbb638ae7dce6bb28a3e3bd39..0be8dc5465eaf01142c974b3a0d51faef2659b49 100644
--- a/lib/std/os/linux/loongarch32.zig
+++ b/lib/std/os/linux/loongarch32.zig
@@ -161,3 +161,22 @@ pub const VDSO = struct {
     pub const CGT_SYM = "__vdso_clock_gettime";
     pub const CGT_VER = "LINUX_5.10";
 };
+
+pub const HWCAP = struct {
+    pub const CPUCFG = 1 << 0;
+    pub const LAM = 1 << 1;
+    pub const UAL = 1 << 2;
+    pub const FPU = 1 << 3;
+    pub const LSX = 1 << 4;
+    pub const LASX = 1 << 5;
+    pub const CRC32 = 1 << 6;
+    pub const COMPLEX = 1 << 7;
+    pub const CRYPTO = 1 << 8;
+    pub const LVZ = 1 << 9;
+    pub const LBT_X86 = 1 << 10;
+    pub const LBT_ARM = 1 << 11;
+    pub const LBT_MIPS = 1 << 12;
+    pub const PTW = 1 << 13;
+    pub const LSPW = 1 << 14;
+    pub const SCQ = 1 << 15;
+};
diff --git a/lib/std/os/linux/loongarch64.zig b/lib/std/os/linux/loongarch64.zig
index 283a4de13484c7489bca7a48d3714ae5136291f4..08d2c486ee027dc1f92e1a9c79099ae4f446471b 100644
--- a/lib/std/os/linux/loongarch64.zig
+++ b/lib/std/os/linux/loongarch64.zig
@@ -160,3 +160,22 @@ pub const VDSO = struct {
     pub const CGT_SYM = "__vdso_clock_gettime";
     pub const CGT_VER = "LINUX_5.10";
 };
+
+pub const HWCAP = struct {
+    pub const CPUCFG = 1 << 0;
+    pub const LAM = 1 << 1;
+    pub const UAL = 1 << 2;
+    pub const FPU = 1 << 3;
+    pub const LSX = 1 << 4;
+    pub const LASX = 1 << 5;
+    pub const CRC32 = 1 << 6;
+    pub const COMPLEX = 1 << 7;
+    pub const CRYPTO = 1 << 8;
+    pub const LVZ = 1 << 9;
+    pub const LBT_X86 = 1 << 10;
+    pub const LBT_ARM = 1 << 11;
+    pub const LBT_MIPS = 1 << 12;
+    pub const PTW = 1 << 13;
+    pub const LSPW = 1 << 14;
+    pub const SCQ = 1 << 15;
+};
-- 
2.54.0