diff options
Diffstat (limited to 'rust/kernel/io')
| -rw-r--r-- | rust/kernel/io/resource.rs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/rust/kernel/io/resource.rs b/rust/kernel/io/resource.rs index a33a416b289a..758ce62b3cce 100644 --- a/rust/kernel/io/resource.rs +++ b/rust/kernel/io/resource.rs @@ -226,10 +226,18 @@ impl Flags { /// Resource represents a memory region that must be ioremaped using `ioremap_np`. pub const IORESOURCE_MEM_NONPOSTED: Flags = Flags::new(bindings::IORESOURCE_MEM_NONPOSTED); + /// Memory region uses a 64-bit address (consumes two consecutive PCI resource slots). + pub const IORESOURCE_MEM_64: Flags = Flags::new(bindings::IORESOURCE_MEM_64); + // Always inline to optimize out error path of `build_assert`. #[inline(always)] const fn new(value: u32) -> Self { build_assert!(value as u64 <= c_ulong::MAX as u64); Flags(value as c_ulong) } + + /// Wrap a raw `c_ulong` value returned by a C API into [`Flags`]. + pub(crate) const fn from_raw(value: c_ulong) -> Self { + Flags(value) + } } |