Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
gpu: nova-core: falcon: add constant for memory block alignment
Falcon memory blocks are 256 bytes in size. This is a hard constant on
all models.
This value was hardcoded, so turn it into a documented constant. It will
also become useful with the PIO loading code.
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260306-turing_prep-v11-2-8f0042c5d026@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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-1
+5
-1
drivers/gpu/nova-core/falcon.rs
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-1
drivers/gpu/nova-core/falcon.rs
···
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falcon::hal::LoadMethod,
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gpu::Chipset,
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num::{
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self,
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FromSafeCast,
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IntoSafeCast, //
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},
···
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pub(crate) mod gsp;
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mod hal;
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pub(crate) mod sec2;
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+
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/// Alignment (in bytes) of falcon memory blocks.
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pub(crate) const MEM_BLOCK_ALIGNMENT: usize = 256;
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// TODO[FPRI]: Replace with `ToPrimitive`.
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macro_rules! impl_from_enum_to_u8 {
···
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target_mem: FalconMem,
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load_offsets: FalconLoadTarget,
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) -> Result {
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-
const DMA_LEN: u32 = 256;
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const DMA_LEN: u32 = num::usize_into_u32::<{ MEM_BLOCK_ALIGNMENT }>();
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// For IMEM, we want to use the start offset as a virtual address tag for each page, since
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// code addresses in the firmware (and the boot vector) are virtual.