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Message-ID: <CADnq5_N8nHV5ub0qf6ihU=+QKXOFfM4AnWbYmWf=EG8SbJXa8A@mail.gmail.com>
Date: Tue, 15 Aug 2023 11:50:04 -0400
From: Alex Deucher <alexdeucher@...il.com>
To: hongao <hongao@...ontech.com>
Cc: alexander.deucher@....com, Xinhui.Pan@....com, airlied@...il.com,
daniel@...ll.ch, lijo.lazar@....com, mario.limonciello@....com,
dri-devel@...ts.freedesktop.org, amd-gfx@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/amdgpu/gmc6: fix in case the PCI BAR is larger than
the actual amount of vram
Applied. Thanks!
On Tue, Aug 15, 2023 at 3:13 AM hongao <hongao@...ontech.com> wrote:
>
> [why]
> limit visible_vram_size to real_vram_size in case
> the PCI BAR is larger than the actual amount of vram.
>
> Signed-off-by: hongao <hongao@...ontech.com>
> ---
> drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> index b7dad4e67813..c0de7496bfd1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> @@ -320,6 +320,8 @@ static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
> adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
> adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
> adev->gmc.visible_vram_size = adev->gmc.aper_size;
> + if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
> + adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
>
> /* set the gart size */
> if (amdgpu_gart_size == -1) {
> --
> 2.20.1
>
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