diff options
| author | Laura Nao <laura.nao@collabora.com> | 2026-07-06 13:44:27 +0100 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-07-11 18:09:04 +0200 |
| commit | 2fabff7807853804af2ae691b263c3ac5cc9a636 (patch) | |
| tree | b30272eb899d06513524ca382ed2348af03db2b9 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 1f989555fe5c823de108d55603ca3cb30053fb45 (diff) | |
rust: io: add I/O backend for system memory with volatile access
Add `SysMem`, an `Io` trait implementation for kernel virtual address
ranges. It uses volatile accessors to provide safe access to shared
memory that may be concurrently accessed by external hardware. Implement
`IoCapable` for `u8`, `u16`, `u32`, and `u64` (for 64-bit system).
This can be used instead of `Coherent` for cases where a different layer
takes care of mapping the system memory to the device (e.g. dma-buf or
GPUVM).
Signed-off-by: Laura Nao <laura.nao@collabora.com>
[ Rebased and adapted on top of I/O rework. - Gary ]
Co-developed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20260706-io_projection-v6-14-72cd5d055d54@garyguo.net
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions