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style: format Rust workspace

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This commit is contained in:
Gahow Wang
2026-06-18 18:11:58 +08:00
parent 013465fc06
commit 531cd3fe08
57 changed files with 4045 additions and 1204 deletions
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52
crates/xserv-kernels/src/layernorm.rs
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@@ -2,10 +2,26 @@ use std::ffi::c_void;
use xserv_tensor::{DType, Device, Tensor};
unsafe extern "C" {
fn launch_layernorm_f32(x: *const c_void, gamma: *const c_void, beta: *const c_void,
out: *mut c_void, rows: i32, hidden_size: i32, eps: f32, stream: *mut c_void);
fn launch_layernorm_bf16(x: *const c_void, gamma: *const c_void, beta: *const c_void,
out: *mut c_void, rows: i32, hidden_size: i32, eps: f32, stream: *mut c_void);
fn launch_layernorm_f32(
x: *const c_void,
gamma: *const c_void,
beta: *const c_void,
out: *mut c_void,
rows: i32,
hidden_size: i32,
eps: f32,
stream: *mut c_void,
);
fn launch_layernorm_bf16(
x: *const c_void,
gamma: *const c_void,
beta: *const c_void,
out: *mut c_void,
rows: i32,
hidden_size: i32,
eps: f32,
stream: *mut c_void,
);
}
pub fn layernorm(x: &Tensor, gamma: &Tensor, beta: &Tensor, eps: f32) -> Tensor {
@@ -17,21 +33,37 @@ pub fn layernorm(x: &Tensor, gamma: &Tensor, beta: &Tensor, eps: f32) -> Tensor
assert_eq!(beta.shape(), &[hidden_size]);
let rows = x.numel() / hidden_size;
assert!(rows <= i32::MAX as usize, "too many rows for i32 kernel param");
assert!(hidden_size <= i32::MAX as usize, "hidden_size too large for i32 kernel param");
assert!(
rows <= i32::MAX as usize,
"too many rows for i32 kernel param"
);
assert!(
hidden_size <= i32::MAX as usize,
"hidden_size too large for i32 kernel param"
);
let out = Tensor::empty(x.shape(), x.dtype(), x.device());
unsafe {
match x.dtype() {
DType::F32 => launch_layernorm_f32(
x.data_ptr() as _, gamma.data_ptr() as _, beta.data_ptr() as _,
x.data_ptr() as _,
gamma.data_ptr() as _,
beta.data_ptr() as _,
out.data_ptr() as *mut c_void,
rows as i32, hidden_size as i32, eps, xserv_cuda::current_stream_raw(),
rows as i32,
hidden_size as i32,
eps,
xserv_cuda::current_stream_raw(),
),
DType::BF16 => launch_layernorm_bf16(
x.data_ptr() as _, gamma.data_ptr() as _, beta.data_ptr() as _,
x.data_ptr() as _,
gamma.data_ptr() as _,
beta.data_ptr() as _,
out.data_ptr() as *mut c_void,
rows as i32, hidden_size as i32, eps, xserv_cuda::current_stream_raw(),
rows as i32,
hidden_size as i32,
eps,
xserv_cuda::current_stream_raw(),
),
_ => panic!("unsupported dtype for layernorm"),
}