From 9b6d4fb9804febb1ae75e7259bb475cea58e28a7 Mon Sep 17 00:00:00 2001
From: Daniel Almeida <daniel.almeida@collabora.com>
Date: Mon, 11 Aug 2025 13:03:44 -0300
Subject: rust: pci: add irq accessors

These accessors can be used to retrieve a irq::Registration or a
irq::ThreadedRegistration from a pci device. Alternatively, drivers can
retrieve an IrqRequest from a bound PCI device for later use.

These accessors ensure that only valid IRQ lines can ever be registered.

Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Tested-by: Joel Fernandes <joelagnelf@nvidia.com>
Tested-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://lore.kernel.org/r/20250811-topics-tyr-request_irq2-v9-6-0485dcd9bcbf@collabora.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
---
 rust/helpers/pci.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'rust/helpers/pci.c')

diff --git a/rust/helpers/pci.c b/rust/helpers/pci.c
index ef9cb38c81a6..5bf56004478c 100644
--- a/rust/helpers/pci.c
+++ b/rust/helpers/pci.c
@@ -11,3 +11,11 @@ bool rust_helper_dev_is_pci(const struct device *dev)
 {
 	return dev_is_pci(dev);
 }
+
+#ifndef CONFIG_PCI_MSI
+int rust_helper_pci_irq_vector(struct pci_dev *pdev, unsigned int nvec)
+{
+	return pci_irq_vector(pdev, nvec);
+}
+
+#endif
-- 
cgit 


From b6a37d1d4694111895248b771513153ccace606a Mon Sep 17 00:00:00 2001
From: Alistair Popple <apopple@nvidia.com>
Date: Wed, 30 Jul 2025 11:34:17 +1000
Subject: rust: Add several miscellaneous PCI helpers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add bindings to obtain a PCI device's resource start address, bus/
device function, revision ID and subsystem device and vendor IDs.

These will be used by the nova-core GPU driver which is currently in
development.

Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Krzysztof Wilczyński <kwilczynski@kernel.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Gary Guo <gary@garyguo.net>
Cc: Björn Roy Baron <bjorn3_gh@protonmail.com>
Cc: Benno Lossin <lossin@kernel.org>
Cc: Andreas Hindborg <a.hindborg@kernel.org>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Trevor Gross <tmgross@umich.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: linux-pci@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Link: https://lore.kernel.org/r/20250730013417.640593-2-apopple@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
---
 rust/helpers/pci.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'rust/helpers/pci.c')

diff --git a/rust/helpers/pci.c b/rust/helpers/pci.c
index 5bf56004478c..fb814572b236 100644
--- a/rust/helpers/pci.c
+++ b/rust/helpers/pci.c
@@ -2,6 +2,16 @@
 
 #include <linux/pci.h>
 
+u16 rust_helper_pci_dev_id(struct pci_dev *dev)
+{
+	return PCI_DEVID(dev->bus->number, dev->devfn);
+}
+
+resource_size_t rust_helper_pci_resource_start(struct pci_dev *pdev, int bar)
+{
+	return pci_resource_start(pdev, bar);
+}
+
 resource_size_t rust_helper_pci_resource_len(struct pci_dev *pdev, int bar)
 {
 	return pci_resource_len(pdev, bar);
-- 
cgit