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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /Documentation/accel/rocket | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'Documentation/accel/rocket')
| -rw-r--r-- | Documentation/accel/rocket/index.rst | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/accel/rocket/index.rst b/Documentation/accel/rocket/index.rst new file mode 100644 index 000000000..70f97bccf --- /dev/null +++ b/Documentation/accel/rocket/index.rst @@ -0,0 +1,19 @@ +.. SPDX-License-Identifier: GPL-2.0-only + +===================================== + accel/rocket Rockchip NPU driver +===================================== + +The accel/rocket driver supports the Neural Processing Units (NPUs) inside some +Rockchip SoCs such as the RK3588. Rockchip calls it RKNN and sometimes RKNPU. + +The hardware is described in chapter 36 in the RK3588 TRM. + +This driver just powers the hardware on and off, allocates and maps buffers to +the device and submits jobs to the frontend unit. Everything else is done in +userspace, as a Gallium driver (also called rocket) that is part of the Mesa3D +project. + +Hardware currently supported: + +* RK3588 |