diff options
| -rw-r--r-- | drivers/gpu/nova-core/regs/macros.rs | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/gpu/nova-core/regs/macros.rs b/drivers/gpu/nova-core/regs/macros.rs index c966e58b775d..e43e1ab7ae2e 100644 --- a/drivers/gpu/nova-core/regs/macros.rs +++ b/drivers/gpu/nova-core/regs/macros.rs @@ -112,14 +112,14 @@ macro_rules! register { // All rules below are helpers. - // Defines the wrapper `$name` type, as well as its relevant implementations (`Debug`, `BitOr`, - // and conversion to the value type) and field accessor methods. + // Defines the wrapper `$name` type, as well as its relevant implementations (`Debug`, + // `Default`, `BitOr`, and conversion to the value type) and field accessor methods. (@core $name:ident $(, $comment:literal)? { $($fields:tt)* }) => { $( #[doc=$comment] )? #[repr(transparent)] - #[derive(Clone, Copy, Default)] + #[derive(Clone, Copy)] pub(crate) struct $name(u32); impl ::core::ops::BitOr for $name { @@ -162,6 +162,7 @@ macro_rules! register { )* }); register!(@debug $name { $($field;)* }); + register!(@default $name { $($field;)* }); }; // Defines all the field getter/methods methods for `$name`. @@ -321,6 +322,25 @@ macro_rules! register { } }; + // Generates the `Default` implementation for `$name`. + (@default $name:ident { $($field:ident;)* }) => { + /// Returns a value for the register where all fields are set to their default value. + impl ::core::default::Default for $name { + fn default() -> Self { + #[allow(unused_mut)] + let mut value = Self(Default::default()); + + ::kernel::macros::paste!( + $( + value.[<set_ $field>](Default::default()); + )* + ); + + value + } + } + }; + // Generates the IO accessors for a fixed offset register. (@io $name:ident @ $offset:expr) => { #[allow(dead_code)] |