rust: pci: add resource_flags accessor

Add a `Device::resource_flags()` method to the PCI Rust abstraction,
wrapping the C-side static inline `pci_resource_flags()`.

The flags returned correspond to the `IORESOURCE` bitmask carried by a
PCI BAR's `struct resource`.

The immediate motivation is BAR layout discovery on NVIDIA GPUs: a
64-bit BAR consumes two consecutive Linux PCI resource slots (the lower
32 bits at index N and the upper 32 bits at index N+1, with the latter
having no flags or size of its own).

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260908-pci-resource-flags-v1-1-269f29f81de6@nvidia.com
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>

0 files changed, 0 insertions, 0 deletions