diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2025-09-15 10:23:28 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2025-09-15 10:23:28 +0200 |
| commit | b4d90dbc4c1bc4bd3eb2d2989330af0eb95c98e8 (patch) | |
| tree | 5670a6d87e7cb5c421809babf9dc9e72ff40f8ae /samples/rust/rust_driver_pci.rs | |
| parent | 54d4f445517fe8350d735624d7f4225e7511d9eb (diff) | |
| parent | 0d9f0083f7a5a31d91d501467b499bb8c4b25bdf (diff) | |
Merge drm/drm-next into drm-misc-next-fixes
Backmerging to drm-misc-next-fixes to get features and fixes from
v6.17-rc6.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'samples/rust/rust_driver_pci.rs')
| -rw-r--r-- | samples/rust/rust_driver_pci.rs | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/samples/rust/rust_driver_pci.rs b/samples/rust/rust_driver_pci.rs index 15147e4401b2..606946ff4d7f 100644 --- a/samples/rust/rust_driver_pci.rs +++ b/samples/rust/rust_driver_pci.rs @@ -18,16 +18,19 @@ impl Regs { type Bar0 = pci::Bar<{ Regs::END }>; -#[derive(Debug)] +#[derive(Copy, Clone, Debug)] struct TestIndex(u8); impl TestIndex { const NO_EVENTFD: Self = Self(0); } +#[pin_data(PinnedDrop)] struct SampleDriver { pdev: ARef<pci::Device>, + #[pin] bar: Devres<Bar0>, + index: TestIndex, } kernel::pci_device_table!( @@ -73,13 +76,12 @@ impl pci::Driver for SampleDriver { pdev.enable_device_mem()?; pdev.set_master(); - let bar = pdev.iomap_region_sized::<{ Regs::END }>(0, c_str!("rust_driver_pci"))?; - - let drvdata = KBox::new( - Self { + let drvdata = KBox::pin_init( + try_pin_init!(Self { pdev: pdev.into(), - bar, - }, + bar <- pdev.iomap_region_sized::<{ Regs::END }>(0, c_str!("rust_driver_pci")), + index: *info, + }), GFP_KERNEL, )?; @@ -90,12 +92,20 @@ impl pci::Driver for SampleDriver { Self::testdev(info, bar)? ); - Ok(drvdata.into()) + Ok(drvdata) + } + + fn unbind(pdev: &pci::Device<Core>, this: Pin<&Self>) { + if let Ok(bar) = this.bar.access(pdev.as_ref()) { + // Reset pci-testdev by writing a new test index. + bar.write8(this.index.0, Regs::TEST); + } } } -impl Drop for SampleDriver { - fn drop(&mut self) { +#[pinned_drop] +impl PinnedDrop for SampleDriver { + fn drop(self: Pin<&mut Self>) { dev_dbg!(self.pdev.as_ref(), "Remove Rust PCI driver sample.\n"); } } |
