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For types that are layout-compatible with an I/O capable type, we would
want the ability to use them directly for I/O operations. E.g.
bitfield! {
pub struct Foo(u32) {
...
}
}
#[repr(C)]
struct Bar {
foo: Foo,
}
let mmio: Mmio<'_, Bar> = ...;
io_read!(mmio, .foo)
Currently this feature is available from `register!()` macro but not
otherwise available with `io_read!`, `io_write!`. Support this by
performing conversions to I/O primitives via the `AsRepr`/`AsReprMut`
trait.
This makes the `IoLoc::IoType` and `Register::Storage` redundant; thus
remove them; also convert register methods to use the `read_val` and
`write_val` instead.
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Gary Guo <gary@garyguo.net>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/20260901-typed_register-v4-4-5552b1d59525@garyguo.net
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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| kernel | ||
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| pin-init | ||
| proc-macro2 | ||
| quote | ||
| syn | ||
| uapi | ||
| zerocopy | ||
| zerocopy-derive | ||
| .gitignore | ||
| .kunitconfig | ||
| bindgen_parameters | ||
| build_error.rs | ||
| compiler_builtins.rs | ||
| exports.c | ||
| ffi.rs | ||
| Makefile | ||