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  • add TF300TL
  • add TF600T
  • add support for FM34NE DSP used on transformers
  • add touchpad switch via sysfs

clamor-s added 3 commits July 14, 2022 18:34
Add device-tree for ASUS Transformer Pad LTE TF300TL, which is NVIDIA
Tegra30-based tablet device.

Co-developed-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Add device-tree for ASUS VivoTab RT TF600T, which is NVIDIA
Tegra30-based tablet device with Windows RT OS.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
clamor-s added 4 commits July 16, 2022 18:35
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
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I will test on my tf201 and merge

@clamor-s clamor-s merged commit 3fef33d into grate-driver:master Jul 16, 2022
@clamor-s clamor-s deleted the patch branch July 16, 2022 17:08
okias pushed a commit to okias/linux that referenced this pull request Jan 11, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  grate-driver#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  grate-driver#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  grate-driver#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  grate-driver#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  grate-driver#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  grate-driver#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  grate-driver#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  grate-driver#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  grate-driver#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  grate-driver#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  grate-driver#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  grate-driver#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  #486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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3 participants