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nvk/bitview: Add a set_field2() trait and method

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35773>
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Faith Ekstrand 2025-06-26 15:01:25 -04:00 • committed by Marge Bot
parent 125da7e341
commit ff944106fc
1 changed files with 24 additions and 0 deletions
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24
src/nouveau/rust/bitview/lib.rs
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@ -272,6 +272,30 @@ impl<T: SetFieldU64, F: ToFieldBits> SetField<F> for T {
} }
} }
pub trait SetField2<F> {
fn set_field2(
&mut self,
range1: Range<usize>,
range2: Range<usize>,
val: F,
);
}
impl<T: SetFieldU64, F: ToFieldBits> SetField2<F> for T {
fn set_field2(
&mut self,
range1: Range<usize>,
range2: Range<usize>,
val: F,
) {
let bits1 = range1.len();
let bits2 = range2.len();
let val = val.to_field_bits(bits1 + bits2);
self.set_field_u64(range1, val & u64_mask_for_bits(bits1));
self.set_field_u64(range2, val >> bits1);
}
}
macro_rules! impl_to_field_bits_for_uN { macro_rules! impl_to_field_bits_for_uN {
($typ: ident) => { ($typ: ident) => {
impl ToFieldBits for $typ { impl ToFieldBits for $typ {