[PATCH] drm/amdgpu: Enable SDMA LS for Vangogh

[Huang Rui]

On Fri, Apr 23, 2021 at 04:30:10PM +0800, Su, Jinzhou (Joe) wrote:
> Add flags AMD_CG_SUPPORT_SDMA_LS for Vangogh.
> Start to open sdma ls from firmware version 70.
> 
> Signed-off-by: Jinzhou Su <Jinzhou.Su at amd.com>

Reviewed-by: Huang Rui <ray.huang at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/nv.c        | 1 +
>  drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c | 4 ++++
>  2 files changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
> index 9c4f232e81c0..82a380be8368 100644
> --- a/drivers/gpu/drm/amd/amdgpu/nv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/nv.c
> @@ -1121,6 +1121,7 @@ static int nv_common_early_init(void *handle)
>  			AMD_CG_SUPPORT_GFX_FGCG |
>  			AMD_CG_SUPPORT_VCN_MGCG |
>  			AMD_CG_SUPPORT_SDMA_MGCG |
> +			AMD_CG_SUPPORT_SDMA_LS |
>  			AMD_CG_SUPPORT_JPEG_MGCG;
>  		adev->pg_flags = AMD_PG_SUPPORT_GFX_PG |
>  			AMD_PG_SUPPORT_VCN |
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
> index 4ba7fce4c0b4..7c4e0586e26d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
> @@ -1593,6 +1593,10 @@ static void sdma_v5_2_update_medium_grain_light_sleep(struct amdgpu_device *adev
>  	int i;
>  
>  	for (i = 0; i < adev->sdma.num_instances; i++) {
> +
> +		if (adev->sdma.instance[i].fw_version < 70 && adev->asic_type == CHIP_VANGOGH)
> +			adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_LS;
> +
>  		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
>  			/* Enable sdma mem light sleep */
>  			def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
> -- 
> 2.27.0
>