diff options
| author | Joel Fernandes <joelagnelf@nvidia.com> | 2026-03-20 00:57:10 -0400 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-03-23 21:41:47 +0100 |
| commit | b9616d9721bf8a56d5038e85d2ebbe0ec9d56a94 (patch) | |
| tree | 1105b3ed5f65e884f94cd9f463509f7c60a75f13 /rust/helpers | |
| parent | f9f0b4a1f35d39a1a2a2f8ec46eb7b81efc70a63 (diff) | |
rust: gpu: Add GPU buddy allocator bindings
Add safe Rust abstractions over the Linux kernel's GPU buddy
allocator for physical memory management. The GPU buddy allocator
implements a binary buddy system useful for GPU physical memory
allocation. nova-core will use it for physical memory allocation.
Cc: Nikola Djukic <ndjukic@nvidia.com>
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/20260320045711.43494-2-joelagnelf@nvidia.com
[ * Use doc-comments for GpuBuddyAllocMode methods and GpuBuddyGuard,
* Fix comma splice in GpuBuddyParams::chunk_size doc-comment,
* Remove redundant summary in GpuBuddy::new doc-comment,
* Drop Rust helper for gpu_buddy_block_size().
- Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'rust/helpers')
| -rw-r--r-- | rust/helpers/gpu.c | 17 | ||||
| -rw-r--r-- | rust/helpers/helpers.c | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/rust/helpers/gpu.c b/rust/helpers/gpu.c new file mode 100644 index 000000000000..a25448d54d72 --- /dev/null +++ b/rust/helpers/gpu.c @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/gpu_buddy.h> + +#ifdef CONFIG_GPU_BUDDY + +__rust_helper u64 rust_helper_gpu_buddy_block_offset(const struct gpu_buddy_block *block) +{ + return gpu_buddy_block_offset(block); +} + +__rust_helper unsigned int rust_helper_gpu_buddy_block_order(struct gpu_buddy_block *block) +{ + return gpu_buddy_block_order(block); +} + +#endif /* CONFIG_GPU_BUDDY */ diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index 724fcb8240ac..a53929ce52a3 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -32,6 +32,7 @@ #include "err.c" #include "irq.c" #include "fs.c" +#include "gpu.c" #include "io.c" #include "jump_label.c" #include "kunit.c" |