Acked-by: Alex Deucher <alexander.deucher@xxxxxxx> On Fri, Jun 5, 2020 at 7:35 AM Prike.Liang <Prike.Liang@xxxxxxx> wrote: > > fix e467ab869f57 drm/amdgpu: use IP discovery table for renoir. > > This nullptr issue should be specific on the Renoir series during try access the PWR_MISC_CNTL_STATUS > when PWR IP not been detected by discovery table. Moreover the PWR IP not existing in Renoir series is > expected therefore just avoid access PWR register in Renoir series. > > Signed-off-by: Prike.Liang <Prike.Liang@xxxxxxx> > --- > drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c > index 22943773..6b94587 100644 > --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c > +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c > @@ -2856,8 +2856,8 @@ static void gfx_v9_0_init_gfx_power_gating(struct amdgpu_device *adev) > /* program GRBM_REG_SAVE_GFX_IDLE_THRESHOLD to 0x55f0 */ > data |= (0x55f0 << RLC_AUTO_PG_CTRL__GRBM_REG_SAVE_GFX_IDLE_THRESHOLD__SHIFT); > WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_AUTO_PG_CTRL), data); > - > - pwr_10_0_gfxip_control_over_cgpg(adev, true); > + if (adev->asic_type != CHIP_RENOIR) > + pwr_10_0_gfxip_control_over_cgpg(adev, true); > } > } > > -- > 2.7.4 > > _______________________________________________ > amd-gfx mailing list > amd-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/amd-gfx _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
