Re: [PATCH 2/4] drm/amdgpu/gmc9: don't keep stolen memory on Raven

From: "Zhang, Jerry (Junwei)" <Jerry.Zhang-5C7GfCeVMHo@public.gmane.org>
To: Alex Deucher
	<alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org>
Subject: Re: [PATCH 2/4] drm/amdgpu/gmc9: don't keep stolen memory on Raven
Date: Fri, 31 Aug 2018 10:03:43 +0800	[thread overview]
Message-ID: <5B88A1FF.6060904@amd.com> (raw)
In-Reply-To: <20180830145339.5162-2-alexander.deucher-5C7GfCeVMHo@public.gmane.org>

On 08/30/2018 10:53 PM, Alex Deucher wrote:
> Raven does not appear to be affected by the same issue
> as vega10.  Enable the full stolen memory handling on
> Raven.  Reserve the appropriate size at init time to avoid
> display artifacts and then free it at the end of init once
> the new FB is up and running.
>
> Bug: https://bugs.freedesktop.org/show_bug.cgi?id=106639
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 46cff7d8b375..938d03593713 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -706,6 +706,7 @@ static bool gmc_v9_0_keep_stolen_memory(struct amdgpu_device *adev)
>   	 */
>   	switch (adev->asic_type) {
>   	case CHIP_RAVEN:
> +		return false;
>   	case CHIP_VEGA10:
>   	case CHIP_VEGA12:
>   	case CHIP_VEGA20:
>
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