On Wed, Sep 25, 2024 at 4:05 PM Mario Limonciello <[email protected]> wrote: > > Some distributions have been patching amdgpu to enable overdrive by > default which may compromise stability. Furthermore when bug reports > are brought upstream it's not obvious that the system has been tampered > with. > > When overdrive is enabled taint the kernel and leave a critical message > in the logs for users so that it's obvious in a bug report it's been > tampered with. > > Signed-off-by: Mario Limonciello <[email protected]> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c > index f57411ed2dc2..99717a1d7f61 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c > @@ -3067,6 +3067,11 @@ static int __init amdgpu_init(void) > /* Ignore KFD init failures. Normal when CONFIG_HSA_AMD is not set. */ > amdgpu_amdkfd_init(); > > + if (amdgpu_pp_feature_mask & PP_OVERDRIVE_MASK) { > + add_taint(TAINT_CPU_OUT_OF_SPEC, LOCKDEP_STILL_OK); > + pr_crit("Overdrive is enabled, please disable it before > reporting any bugs.\n");
Might want to reword this to something like: "Overdrive is enabled, please disable it before reporting any bugs unrelated to overdrive.\n" Alex > + } > + > /* let modprobe override vga console setting */ > return pci_register_driver(&amdgpu_kms_pci_driver); > > -- > 2.43.0 >
