diff options
Diffstat (limited to 'samples/rust')
-rw-r--r-- | samples/rust/rust_configfs.rs | 2 | ||||
-rw-r--r-- | samples/rust/rust_dma.rs | 35 | ||||
-rw-r--r-- | samples/rust/rust_driver_pci.rs | 2 |
3 files changed, 28 insertions, 11 deletions
diff --git a/samples/rust/rust_configfs.rs b/samples/rust/rust_configfs.rs index 5005453f874d..0ccc7553ef39 100644 --- a/samples/rust/rust_configfs.rs +++ b/samples/rust/rust_configfs.rs @@ -5,7 +5,7 @@ use kernel::alloc::flags; use kernel::c_str; use kernel::configfs; -use kernel::configfs_attrs; +use kernel::configfs::configfs_attrs; use kernel::new_mutex; use kernel::page::PAGE_SIZE; use kernel::prelude::*; diff --git a/samples/rust/rust_dma.rs b/samples/rust/rust_dma.rs index ead8b542bb4a..4d324f06cc2a 100644 --- a/samples/rust/rust_dma.rs +++ b/samples/rust/rust_dma.rs @@ -6,15 +6,19 @@ use kernel::{ device::Core, - dma::{CoherentAllocation, Device, DmaMask}, - pci, + dma::{CoherentAllocation, DataDirection, Device, DmaMask}, + page, pci, prelude::*, + scatterlist::{Owned, SGTable}, sync::aref::ARef, }; +#[pin_data(PinnedDrop)] struct DmaSampleDriver { pdev: ARef<pci::Device>, ca: CoherentAllocation<MyStruct>, + #[pin] + sgt: SGTable<Owned<VVec<u8>>>, } const TEST_VALUES: [(u32, u32); 5] = [ @@ -66,21 +70,30 @@ impl pci::Driver for DmaSampleDriver { kernel::dma_write!(ca[i] = MyStruct::new(value.0, value.1))?; } - let drvdata = KBox::new( - Self { + let size = 4 * page::PAGE_SIZE; + let pages = VVec::with_capacity(size, GFP_KERNEL)?; + + let sgt = SGTable::new(pdev.as_ref(), pages, DataDirection::ToDevice, GFP_KERNEL); + + let drvdata = KBox::pin_init( + try_pin_init!(Self { pdev: pdev.into(), ca, - }, + sgt <- sgt, + }), GFP_KERNEL, )?; - Ok(drvdata.into()) + Ok(drvdata) } } -impl Drop for DmaSampleDriver { - fn drop(&mut self) { - dev_info!(self.pdev.as_ref(), "Unload DMA test driver.\n"); +#[pinned_drop] +impl PinnedDrop for DmaSampleDriver { + fn drop(self: Pin<&mut Self>) { + let dev = self.pdev.as_ref(); + + dev_info!(dev, "Unload DMA test driver.\n"); for (i, value) in TEST_VALUES.into_iter().enumerate() { let val0 = kernel::dma_read!(self.ca[i].h); @@ -95,6 +108,10 @@ impl Drop for DmaSampleDriver { assert_eq!(val1, value.1); } } + + for (i, entry) in self.sgt.iter().enumerate() { + dev_info!(dev, "Entry[{}]: DMA address: {:#x}", i, entry.dma_address()); + } } } diff --git a/samples/rust/rust_driver_pci.rs b/samples/rust/rust_driver_pci.rs index 97baec8df9bc..55a683c39ed9 100644 --- a/samples/rust/rust_driver_pci.rs +++ b/samples/rust/rust_driver_pci.rs @@ -79,8 +79,8 @@ impl pci::Driver for SampleDriver { let drvdata = KBox::pin_init( try_pin_init!(Self { - pdev: pdev.into(), bar <- pdev.iomap_region_sized::<{ Regs::END }>(0, c_str!("rust_driver_pci")), + pdev: pdev.into(), index: *info, }), GFP_KERNEL, |