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173c99b85a
As per [1], we need one "use" item per line, in order to reduce merge conflicts. Furthermore, we need a trailing ", //" in order to tell rustfmt(1) to leave it alone. This does that for the entire nova-core driver. [1] https://docs.kernel.org/rust/coding-guidelines.html#imports Acked-by: Danilo Krummrich <dakr@kernel.org> Signed-off-by: John Hubbard <jhubbard@nvidia.com> [acourbot@nvidia.com: remove imports already in prelude as pointed out by Danilo.] [acourbot@nvidia.com: remove a few unneeded trailing `//`.] Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Message-ID: <20251107021006.434109-1-jhubbard@nvidia.com>
61 lines
1.9 KiB
Rust
61 lines
1.9 KiB
Rust
// SPDX-License-Identifier: GPL-2.0
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use kernel::prelude::*;
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use crate::{
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driver::Bar0,
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falcon::{
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Falcon,
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FalconBromParams,
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FalconEngine, //
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},
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gpu::Chipset,
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};
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mod ga102;
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/// Hardware Abstraction Layer for Falcon cores.
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///
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/// Implements chipset-specific low-level operations. The trait is generic against [`FalconEngine`]
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/// so its `BASE` parameter can be used in order to avoid runtime bound checks when accessing
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/// registers.
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pub(crate) trait FalconHal<E: FalconEngine>: Send + Sync {
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/// Activates the Falcon core if the engine is a risvc/falcon dual engine.
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fn select_core(&self, _falcon: &Falcon<E>, _bar: &Bar0) -> Result {
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Ok(())
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}
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/// Returns the fused version of the signature to use in order to run a HS firmware on this
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/// falcon instance. `engine_id_mask` and `ucode_id` are obtained from the firmware header.
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fn signature_reg_fuse_version(
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&self,
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falcon: &Falcon<E>,
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bar: &Bar0,
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engine_id_mask: u16,
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ucode_id: u8,
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) -> Result<u32>;
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/// Program the boot ROM registers prior to starting a secure firmware.
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fn program_brom(&self, falcon: &Falcon<E>, bar: &Bar0, params: &FalconBromParams) -> Result;
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}
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/// Returns a boxed falcon HAL adequate for `chipset`.
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///
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/// We use a heap-allocated trait object instead of a statically defined one because the
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/// generic `FalconEngine` argument makes it difficult to define all the combinations
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/// statically.
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pub(super) fn falcon_hal<E: FalconEngine + 'static>(
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chipset: Chipset,
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) -> Result<KBox<dyn FalconHal<E>>> {
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use Chipset::*;
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let hal = match chipset {
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GA102 | GA103 | GA104 | GA106 | GA107 | AD102 | AD103 | AD104 | AD106 | AD107 => {
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KBox::new(ga102::Ga102::<E>::new(), GFP_KERNEL)? as KBox<dyn FalconHal<E>>
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}
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_ => return Err(ENOTSUPP),
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};
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Ok(hal)
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}
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