Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
gpu: nova-core: firmware: riscv: use dma::Coherent
Replace the nova-core local `DmaObject` with a `Coherent` that can
fulfill the same role.
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260327-b4-nova-dma-removal-v2-2-616e1d0b5cb3@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
+3
-3
+3
-3
drivers/gpu/nova-core/firmware/riscv.rs
+3
-3
drivers/gpu/nova-core/firmware/riscv.rs
···
5
5
6
6
use kernel::{
7
7
device,
8
+
dma::Coherent,
8
9
firmware::Firmware,
9
10
prelude::*,
10
11
transmute::FromBytes, //
11
12
};
12
13
13
14
use crate::{
14
-
dma::DmaObject,
15
15
firmware::BinFirmware,
16
16
num::FromSafeCast, //
17
17
};
···
66
66
/// Application version.
67
67
pub(crate) app_version: u32,
68
68
/// Device-mapped firmware image.
69
-
pub(crate) ucode: DmaObject,
69
+
pub(crate) ucode: Coherent<[u8]>,
70
70
}
71
71
72
72
impl RiscvFirmware {
···
81
81
let len = usize::from_safe_cast(bin_fw.hdr.data_size);
82
82
let end = start.checked_add(len).ok_or(EINVAL)?;
83
83
84
-
DmaObject::from_data(dev, fw.data().get(start..end).ok_or(EINVAL)?)?
84
+
Coherent::from_slice(dev, fw.data().get(start..end).ok_or(EINVAL)?, GFP_KERNEL)?
85
85
};
86
86
87
87
Ok(Self {