Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
sample: rust: pci: add tests for config space routines
Add tests exercising the PCI configuration space helpers.
Suggested-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Zhi Wang <zhiw@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260121202212.4438-6-zhiw@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
authored by
Zhi Wang
and committed by
Danilo Krummrich
e62e48ad
4dc0bacb
+26
+26
samples/rust/rust_driver_pci.rs
+26
samples/rust/rust_driver_pci.rs
···
5
5
//! To make this driver probe, QEMU must be run with `-device pci-testdev`.
6
6
7
7
use kernel::{
8
+
device::Bound,
8
9
device::Core,
9
10
devres::Devres,
10
11
io::Io,
···
66
65
67
66
Ok(bar.read32(Regs::COUNT))
68
67
}
68
+
69
+
fn config_space(pdev: &pci::Device<Bound>) {
70
+
let config = pdev.config_space();
71
+
72
+
// TODO: use the register!() macro for defining PCI configuration space registers once it
73
+
// has been move out of nova-core.
74
+
dev_info!(
75
+
pdev.as_ref(),
76
+
"pci-testdev config space read8 rev ID: {:x}\n",
77
+
config.read8(0x8)
78
+
);
79
+
80
+
dev_info!(
81
+
pdev.as_ref(),
82
+
"pci-testdev config space read16 vendor ID: {:x}\n",
83
+
config.read16(0)
84
+
);
85
+
86
+
dev_info!(
87
+
pdev.as_ref(),
88
+
"pci-testdev config space read32 BAR 0: {:x}\n",
89
+
config.read32(0x10)
90
+
);
91
+
}
69
92
}
70
93
71
94
impl pci::Driver for SampleDriver {
···
121
96
"pci-testdev data-match count: {}\n",
122
97
Self::testdev(info, bar)?
123
98
);
99
+
Self::config_space(pdev);
124
100
},
125
101
pdev: pdev.into(),
126
102
}))