On Mon, Nov 18, 2024 at 12:57 PM Mario Limonciello <mario.limonciello@xxxxxxx> wrote: > > There is a strapping issue on NBIO 7.11.x that can lead to spurious PME > events while in the D0 state. > > Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx> Series is: Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx> > --- > drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c > index 7a9adfda5814..814ab59fdd4a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c > +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c > @@ -275,6 +275,15 @@ static void nbio_v7_11_init_registers(struct amdgpu_device *adev) > if (def != data) > WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3, data); > > + switch (adev->ip_versions[NBIO_HWIP][0]) { > + case IP_VERSION(7, 11, 0): > + case IP_VERSION(7, 11, 1): > + case IP_VERSION(7, 11, 2): > + case IP_VERSION(7, 11, 3): > + data = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF5_STRAP4) & ~BIT(23); > + WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF5_STRAP4, data); > + break; > + } > } > > static void nbio_v7_11_update_medium_grain_clock_gating(struct amdgpu_device *adev, > -- > 2.34.1 >