[PATCH 1/3] drm/amdgpu: avoid gfx register accessing during gfxoff

[Lazar, Lijo]

On 9/21/2022 10:26 AM, Evan Quan wrote:
> Make sure gfxoff is disabled before gfx register accessing.
> 
> Signed-off-by: Evan Quan <evan.quan at amd.com>

Series is -
	Reviewed-by: Lijo Lazar <lijo.lazar at amd.com>

Thanks,
Lijo

> Change-Id: Ia032869080f51cdefc6e6bad4f04405193ab0fec
> ---
>   drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> index ce8c792cef1a..710074682279 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> @@ -5245,6 +5245,8 @@ static void gfx_v11_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
>   {
>   	u32 reg, data;
>   
> +	amdgpu_gfx_off_ctrl(adev, false);
> +
>   	reg = SOC15_REG_OFFSET(GC, 0, regRLC_SPM_MC_CNTL);
>   	if (amdgpu_sriov_is_pp_one_vf(adev))
>   		data = RREG32_NO_KIQ(reg);
> @@ -5258,6 +5260,8 @@ static void gfx_v11_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
>   		WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data);
>   	else
>   		WREG32_SOC15(GC, 0, regRLC_SPM_MC_CNTL, data);
> +
> +	amdgpu_gfx_off_ctrl(adev, true);
>   }
>   
>   static const struct amdgpu_rlc_funcs gfx_v11_0_rlc_funcs = {
>