[PATCH] drm/amdgpu: allow direct upload save restore list for raven2

[Huang, Ray]

> -----Original Message-----
> From: Zhu, Changfeng <Changfeng.Zhu at amd.com>
> Sent: Friday, November 08, 2019 9:55 AM
> To: amd-gfx at lists.freedesktop.org; Zhang, Hawking
> <Hawking.Zhang at amd.com>; Huang, Ray <Ray.Huang at amd.com>
> Cc: Zhu, Changfeng <Changfeng.Zhu at amd.com>
> Subject: [PATCH] drm/amdgpu: allow direct upload save restore list for
> raven2
> 
> From: changzhu <Changfeng.Zhu at amd.com>
> 
> It will cause modprobe atombios stuck problem in raven2 if it doesn't allow
> direct upload save restore list from gfx driver.
> So it needs to allow direct upload save restore list for raven2 temporarily.
> 
> Change-Id: I1fece1b9c61f7a13eec948f34eb60a9120046bc2
> Signed-off-by: changzhu <Changfeng.Zhu at amd.com>

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

> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index 4ed31e9a398c..dde9713c1d67 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -2729,7 +2729,9 @@ static void gfx_v9_0_init_pg(struct amdgpu_device
> *adev)
>  	 * And it's needed by gfxoff feature.
>  	 */
>  	if (adev->gfx.rlc.is_rlc_v2_1) {
> -		if (adev->asic_type == CHIP_VEGA12)
> +		if (adev->asic_type == CHIP_VEGA12 ||
> +		    (adev->asic_type == CHIP_RAVEN &&
> +		     adev->rev_id >= 8))
>  			gfx_v9_1_init_rlc_save_restore_list(adev);
>  		gfx_v9_0_enable_save_restore_machine(adev);
>  	}
> --
> 2.17.1